/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_label44+token_ring.02.cil-1.c -------------------------------------------------------------------------------- This is Ultimate 0.2.4-tmp.fs.bitabs-eval-d9c3e40-m [2023-12-21 21:55:18,909 INFO L188 SettingsManager]: Resetting all preferences to default values... [2023-12-21 21:55:18,976 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 21:55:18,981 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2023-12-21 21:55:18,982 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2023-12-21 21:55:19,003 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2023-12-21 21:55:19,003 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2023-12-21 21:55:19,004 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2023-12-21 21:55:19,004 INFO L151 SettingsManager]: Preferences of Boogie Preprocessor differ from their defaults: [2023-12-21 21:55:19,007 INFO L153 SettingsManager]: * Use memory slicer=true [2023-12-21 21:55:19,007 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2023-12-21 21:55:19,007 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2023-12-21 21:55:19,008 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2023-12-21 21:55:19,009 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2023-12-21 21:55:19,009 INFO L153 SettingsManager]: * Use SBE=true [2023-12-21 21:55:19,009 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2023-12-21 21:55:19,009 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2023-12-21 21:55:19,010 INFO L153 SettingsManager]: * sizeof long=4 [2023-12-21 21:55:19,010 INFO L153 SettingsManager]: * sizeof POINTER=4 [2023-12-21 21:55:19,010 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2023-12-21 21:55:19,010 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2023-12-21 21:55:19,010 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2023-12-21 21:55:19,011 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2023-12-21 21:55:19,011 INFO L153 SettingsManager]: * Adapt memory model on pointer casts if necessary=true [2023-12-21 21:55:19,011 INFO L153 SettingsManager]: * Use bitvectors instead of ints=true [2023-12-21 21:55:19,011 INFO L153 SettingsManager]: * Allow undefined functions=false [2023-12-21 21:55:19,011 INFO L153 SettingsManager]: * Memory model=HoenickeLindenmann_4ByteResolution [2023-12-21 21:55:19,011 INFO L153 SettingsManager]: * sizeof long double=12 [2023-12-21 21:55:19,011 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2023-12-21 21:55:19,011 INFO L153 SettingsManager]: * Use constant arrays=true [2023-12-21 21:55:19,012 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2023-12-21 21:55:19,012 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2023-12-21 21:55:19,012 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2023-12-21 21:55:19,013 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2023-12-21 21:55:19,013 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2023-12-21 21:55:19,013 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2023-12-21 21:55:19,013 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2023-12-21 21:55:19,013 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2023-12-21 21:55:19,013 INFO L153 SettingsManager]: * Trace refinement strategy=WOLF [2023-12-21 21:55:19,013 INFO L153 SettingsManager]: * Command for external solver=cvc4 --incremental --print-success --lang smt [2023-12-21 21:55:19,013 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2023-12-21 21:55:19,014 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2023-12-21 21:55:19,014 INFO L153 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2023-12-21 21:55:19,014 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2023-12-21 21:55:19,014 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2023-12-21 21:55:19,014 INFO L153 SettingsManager]: * Logic for external solver=AUFBV [2023-12-21 21:55:19,014 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release [2023-12-21 21:55:19,199 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2023-12-21 21:55:19,214 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2023-12-21 21:55:19,216 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2023-12-21 21:55:19,217 INFO L270 PluginConnector]: Initializing CDTParser... [2023-12-21 21:55:19,217 INFO L274 PluginConnector]: CDTParser initialized [2023-12-21 21:55:19,218 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/combinations/Problem05_label44+token_ring.02.cil-1.c [2023-12-21 21:55:20,292 INFO L533 CDTParser]: Created temporary CDT project at NULL [2023-12-21 21:55:20,770 INFO L384 CDTParser]: Found 1 translation units. [2023-12-21 21:55:20,770 INFO L180 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/combinations/Problem05_label44+token_ring.02.cil-1.c [2023-12-21 21:55:20,804 INFO L427 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/182b36f4a/7199a44ebc1441e49005fac1f0008117/FLAG67d1f56c6 [2023-12-21 21:55:20,815 INFO L435 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/182b36f4a/7199a44ebc1441e49005fac1f0008117 [2023-12-21 21:55:20,817 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2023-12-21 21:55:20,819 INFO L133 ToolchainWalker]: Walking toolchain with 5 elements. [2023-12-21 21:55:20,820 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2023-12-21 21:55:20,820 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2023-12-21 21:55:20,824 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2023-12-21 21:55:20,825 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 21.12 09:55:20" (1/1) ... [2023-12-21 21:55:20,826 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@157bb258 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.12 09:55:20, skipping insertion in model container [2023-12-21 21:55:20,826 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 21.12 09:55:20" (1/1) ... [2023-12-21 21:55:20,971 INFO L177 MainTranslator]: Built tables and reachable declarations [2023-12-21 21:55:22,333 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_label44+token_ring.02.cil-1.c[377340,377353] [2023-12-21 21:55:22,361 WARN L239 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/trunk/examples/svcomp/combinations/Problem05_label44+token_ring.02.cil-1.c[383339,383352] [2023-12-21 21:55:22,478 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-12-21 21:55:22,492 INFO L202 MainTranslator]: Completed pre-run [2023-12-21 21:55:23,047 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_label44+token_ring.02.cil-1.c[377340,377353] [2023-12-21 21:55:23,054 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_label44+token_ring.02.cil-1.c[383339,383352] [2023-12-21 21:55:23,070 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-12-21 21:55:23,156 INFO L206 MainTranslator]: Completed translation [2023-12-21 21:55:23,156 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.12 09:55:23 WrapperNode [2023-12-21 21:55:23,156 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2023-12-21 21:55:23,157 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2023-12-21 21:55:23,158 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2023-12-21 21:55:23,158 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2023-12-21 21:55:23,162 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.12 09:55:23" (1/1) ... [2023-12-21 21:55:23,254 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.12 09:55:23" (1/1) ... [2023-12-21 21:55:23,627 INFO L138 Inliner]: procedures = 49, calls = 47, calls flagged for inlining = 26, calls inlined = 26, statements flattened = 12611 [2023-12-21 21:55:23,628 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2023-12-21 21:55:23,628 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2023-12-21 21:55:23,628 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2023-12-21 21:55:23,628 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2023-12-21 21:55:23,636 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.12 09:55:23" (1/1) ... [2023-12-21 21:55:23,644 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.12 09:55:23" (1/1) ... [2023-12-21 21:55:23,723 INFO L184 PluginConnector]: Executing the observer MemorySlicer from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.12 09:55:23" (1/1) ... [2023-12-21 21:55:23,910 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 21:55:23,911 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.12 09:55:23" (1/1) ... [2023-12-21 21:55:23,911 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.12 09:55:23" (1/1) ... [2023-12-21 21:55:24,032 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.12 09:55:23" (1/1) ... [2023-12-21 21:55:24,067 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.12 09:55:23" (1/1) ... [2023-12-21 21:55:24,092 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.12 09:55:23" (1/1) ... [2023-12-21 21:55:24,114 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.12 09:55:23" (1/1) ... [2023-12-21 21:55:24,167 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2023-12-21 21:55:24,168 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2023-12-21 21:55:24,168 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2023-12-21 21:55:24,168 INFO L274 PluginConnector]: RCFGBuilder initialized [2023-12-21 21:55:24,168 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.12 09:55:23" (1/1) ... [2023-12-21 21:55:24,172 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2023-12-21 21:55:24,180 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-12-21 21:55:24,192 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 21:55:24,206 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 21:55:24,215 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2023-12-21 21:55:24,215 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE1#0 [2023-12-21 21:55:24,216 INFO L130 BoogieDeclarations]: Found specification of procedure fire_delta_events [2023-12-21 21:55:24,216 INFO L138 BoogieDeclarations]: Found implementation of procedure fire_delta_events [2023-12-21 21:55:24,216 INFO L130 BoogieDeclarations]: Found specification of procedure activate_threads [2023-12-21 21:55:24,216 INFO L138 BoogieDeclarations]: Found implementation of procedure activate_threads [2023-12-21 21:55:24,216 INFO L130 BoogieDeclarations]: Found specification of procedure immediate_notify [2023-12-21 21:55:24,216 INFO L138 BoogieDeclarations]: Found implementation of procedure immediate_notify [2023-12-21 21:55:24,216 INFO L130 BoogieDeclarations]: Found specification of procedure exists_runnable_thread [2023-12-21 21:55:24,216 INFO L138 BoogieDeclarations]: Found implementation of procedure exists_runnable_thread [2023-12-21 21:55:24,216 INFO L130 BoogieDeclarations]: Found specification of procedure reset_delta_events [2023-12-21 21:55:24,216 INFO L138 BoogieDeclarations]: Found implementation of procedure reset_delta_events [2023-12-21 21:55:24,216 INFO L130 BoogieDeclarations]: Found specification of procedure update_channels [2023-12-21 21:55:24,216 INFO L138 BoogieDeclarations]: Found implementation of procedure update_channels [2023-12-21 21:55:24,216 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2023-12-21 21:55:24,216 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2023-12-21 21:55:24,294 INFO L241 CfgBuilder]: Building ICFG [2023-12-21 21:55:24,295 INFO L267 CfgBuilder]: Building CFG for each procedure with an implementation [2023-12-21 21:55:31,609 INFO L282 CfgBuilder]: Performing block encoding [2023-12-21 21:55:31,706 INFO L304 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2023-12-21 21:55:31,706 INFO L309 CfgBuilder]: Removed 6 assume(true) statements. [2023-12-21 21:55:31,707 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 21.12 09:55:31 BoogieIcfgContainer [2023-12-21 21:55:31,707 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2023-12-21 21:55:31,710 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2023-12-21 21:55:31,710 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2023-12-21 21:55:31,713 INFO L274 PluginConnector]: TraceAbstraction initialized [2023-12-21 21:55:31,713 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 21.12 09:55:20" (1/3) ... [2023-12-21 21:55:31,713 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@6505153 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 21.12 09:55:31, skipping insertion in model container [2023-12-21 21:55:31,714 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.12 09:55:23" (2/3) ... [2023-12-21 21:55:31,714 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@6505153 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 21.12 09:55:31, skipping insertion in model container [2023-12-21 21:55:31,714 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 21.12 09:55:31" (3/3) ... [2023-12-21 21:55:31,715 INFO L112 eAbstractionObserver]: Analyzing ICFG Problem05_label44+token_ring.02.cil-1.c [2023-12-21 21:55:31,726 INFO L204 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2023-12-21 21:55:31,726 INFO L163 ceAbstractionStarter]: Applying trace abstraction to program that has 2 error locations. [2023-12-21 21:55:31,792 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2023-12-21 21:55:31,796 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;@293aace4, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2023-12-21 21:55:31,796 INFO L358 AbstractCegarLoop]: Starting to check reachability of 2 error locations. [2023-12-21 21:55:31,807 INFO L276 IsEmpty]: Start isEmpty. Operand has 2241 states, 2216 states have (on average 1.8858303249097472) internal successors, (4179), 2219 states have internal predecessors, (4179), 16 states have call successors, (16), 6 states have call predecessors, (16), 6 states have return successors, (16), 16 states have call predecessors, (16), 16 states have call successors, (16) [2023-12-21 21:55:31,818 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 62 [2023-12-21 21:55:31,819 INFO L187 NwaCegarLoop]: Found error trace [2023-12-21 21:55:31,819 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] [2023-12-21 21:55:31,820 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-21 21:55:31,825 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-21 21:55:31,825 INFO L85 PathProgramCache]: Analyzing trace with hash -584044612, now seen corresponding path program 1 times [2023-12-21 21:55:31,835 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-12-21 21:55:31,836 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [2079598130] [2023-12-21 21:55:31,836 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-21 21:55:31,836 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 21:55:31,836 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2023-12-21 21:55:31,838 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 21:55:31,843 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 21:55:31,941 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 21:55:31,944 INFO L262 TraceCheckSpWp]: Trace formula consists of 165 conjuncts, 4 conjunts are in the unsatisfiable core [2023-12-21 21:55:31,950 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-21 21:55:32,028 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-12-21 21:55:32,029 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-12-21 21:55:32,029 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-12-21 21:55:32,029 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [2079598130] [2023-12-21 21:55:32,030 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [2079598130] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-21 21:55:32,030 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-21 21:55:32,030 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2023-12-21 21:55:32,031 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1385640674] [2023-12-21 21:55:32,032 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-21 21:55:32,034 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2023-12-21 21:55:32,034 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-12-21 21:55:32,057 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2023-12-21 21:55:32,057 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2023-12-21 21:55:32,065 INFO L87 Difference]: Start difference. First operand has 2241 states, 2216 states have (on average 1.8858303249097472) internal successors, (4179), 2219 states have internal predecessors, (4179), 16 states have call successors, (16), 6 states have call predecessors, (16), 6 states have return successors, (16), 16 states have call predecessors, (16), 16 states have call successors, (16) Second operand has 5 states, 5 states have (on average 10.2) internal successors, (51), 3 states have internal predecessors, (51), 2 states have call successors, (5), 3 states have call predecessors, (5), 3 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) [2023-12-21 21:55:32,442 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-21 21:55:32,443 INFO L93 Difference]: Finished difference Result 4593 states and 8601 transitions. [2023-12-21 21:55:32,444 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2023-12-21 21:55:32,445 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 10.2) internal successors, (51), 3 states have internal predecessors, (51), 2 states have call successors, (5), 3 states have call predecessors, (5), 3 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) Word has length 61 [2023-12-21 21:55:32,445 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-21 21:55:32,464 INFO L225 Difference]: With dead ends: 4593 [2023-12-21 21:55:32,464 INFO L226 Difference]: Without dead ends: 2354 [2023-12-21 21:55:32,473 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 61 GetRequests, 57 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 21:55:32,476 INFO L413 NwaCegarLoop]: 4085 mSDtfsCounter, 4246 mSDsluCounter, 8217 mSDsCounter, 0 mSdLazyCounter, 259 mSolverCounterSat, 36 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 4256 SdHoareTripleChecker+Valid, 12302 SdHoareTripleChecker+Invalid, 295 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 36 IncrementalHoareTripleChecker+Valid, 259 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2023-12-21 21:55:32,477 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [4256 Valid, 12302 Invalid, 295 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [36 Valid, 259 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2023-12-21 21:55:32,492 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2354 states. [2023-12-21 21:55:32,570 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2354 to 2345. [2023-12-21 21:55:32,576 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2345 states, 2303 states have (on average 1.84020842379505) internal successors, (4238), 2306 states have internal predecessors, (4238), 27 states have call successors, (27), 12 states have call predecessors, (27), 13 states have return successors, (28), 27 states have call predecessors, (28), 27 states have call successors, (28) [2023-12-21 21:55:32,588 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2345 states to 2345 states and 4293 transitions. [2023-12-21 21:55:32,590 INFO L78 Accepts]: Start accepts. Automaton has 2345 states and 4293 transitions. Word has length 61 [2023-12-21 21:55:32,590 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-21 21:55:32,590 INFO L495 AbstractCegarLoop]: Abstraction has 2345 states and 4293 transitions. [2023-12-21 21:55:32,591 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 10.2) internal successors, (51), 3 states have internal predecessors, (51), 2 states have call successors, (5), 3 states have call predecessors, (5), 3 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) [2023-12-21 21:55:32,591 INFO L276 IsEmpty]: Start isEmpty. Operand 2345 states and 4293 transitions. [2023-12-21 21:55:32,599 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 62 [2023-12-21 21:55:32,599 INFO L187 NwaCegarLoop]: Found error trace [2023-12-21 21:55:32,600 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] [2023-12-21 21:55:32,619 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 21:55:32,805 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 21:55:32,806 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-21 21:55:32,806 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-21 21:55:32,806 INFO L85 PathProgramCache]: Analyzing trace with hash 1424404092, now seen corresponding path program 1 times [2023-12-21 21:55:32,807 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-12-21 21:55:32,807 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [176479065] [2023-12-21 21:55:32,807 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-21 21:55:32,807 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2023-12-21 21:55:32,807 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2023-12-21 21:55:32,808 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 21:55:32,812 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 21:55:32,879 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 21:55:32,881 INFO L262 TraceCheckSpWp]: Trace formula consists of 163 conjuncts, 4 conjunts are in the unsatisfiable core [2023-12-21 21:55:32,883 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-21 21:55:32,924 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 21:55:32,925 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-12-21 21:55:32,925 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-12-21 21:55:32,925 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [176479065] [2023-12-21 21:55:32,925 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [176479065] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-21 21:55:32,925 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-21 21:55:32,925 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2023-12-21 21:55:32,925 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1953569171] [2023-12-21 21:55:32,925 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-21 21:55:32,938 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2023-12-21 21:55:32,939 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-12-21 21:55:32,939 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2023-12-21 21:55:32,939 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2023-12-21 21:55:32,940 INFO L87 Difference]: Start difference. First operand 2345 states and 4293 transitions. Second operand has 5 states, 5 states have (on average 10.2) internal successors, (51), 4 states have internal predecessors, (51), 2 states have call successors, (5), 3 states have call predecessors, (5), 3 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) [2023-12-21 21:55:33,170 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-21 21:55:33,170 INFO L93 Difference]: Finished difference Result 2561 states and 4622 transitions. [2023-12-21 21:55:33,170 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2023-12-21 21:55:33,171 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 10.2) internal successors, (51), 4 states have internal predecessors, (51), 2 states have call successors, (5), 3 states have call predecessors, (5), 3 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) Word has length 61 [2023-12-21 21:55:33,171 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-21 21:55:33,178 INFO L225 Difference]: With dead ends: 2561 [2023-12-21 21:55:33,178 INFO L226 Difference]: Without dead ends: 2345 [2023-12-21 21:55:33,179 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 61 GetRequests, 57 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 21:55:33,179 INFO L413 NwaCegarLoop]: 4061 mSDtfsCounter, 4164 mSDsluCounter, 8070 mSDsCounter, 0 mSdLazyCounter, 177 mSolverCounterSat, 25 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 4174 SdHoareTripleChecker+Valid, 12131 SdHoareTripleChecker+Invalid, 202 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 25 IncrementalHoareTripleChecker+Valid, 177 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2023-12-21 21:55:33,180 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [4174 Valid, 12131 Invalid, 202 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [25 Valid, 177 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2023-12-21 21:55:33,182 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2345 states. [2023-12-21 21:55:33,207 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2345 to 2345. [2023-12-21 21:55:33,210 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2345 states, 2303 states have (on average 1.8371689101172384) internal successors, (4231), 2306 states have internal predecessors, (4231), 27 states have call successors, (27), 12 states have call predecessors, (27), 13 states have return successors, (28), 27 states have call predecessors, (28), 27 states have call successors, (28) [2023-12-21 21:55:33,216 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2345 states to 2345 states and 4286 transitions. [2023-12-21 21:55:33,216 INFO L78 Accepts]: Start accepts. Automaton has 2345 states and 4286 transitions. Word has length 61 [2023-12-21 21:55:33,216 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-21 21:55:33,217 INFO L495 AbstractCegarLoop]: Abstraction has 2345 states and 4286 transitions. [2023-12-21 21:55:33,217 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 10.2) internal successors, (51), 4 states have internal predecessors, (51), 2 states have call successors, (5), 3 states have call predecessors, (5), 3 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) [2023-12-21 21:55:33,217 INFO L276 IsEmpty]: Start isEmpty. Operand 2345 states and 4286 transitions. [2023-12-21 21:55:33,217 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 62 [2023-12-21 21:55:33,217 INFO L187 NwaCegarLoop]: Found error trace [2023-12-21 21:55:33,218 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] [2023-12-21 21:55:33,231 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 21:55:33,421 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 21:55:33,422 INFO L420 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-21 21:55:33,422 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-21 21:55:33,422 INFO L85 PathProgramCache]: Analyzing trace with hash 1627740092, now seen corresponding path program 1 times [2023-12-21 21:55:33,422 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-12-21 21:55:33,423 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1032342427] [2023-12-21 21:55:33,423 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-21 21:55:33,423 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2023-12-21 21:55:33,423 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2023-12-21 21:55:33,424 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 21:55:33,453 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 21:55:33,481 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 21:55:33,483 INFO L262 TraceCheckSpWp]: Trace formula consists of 161 conjuncts, 4 conjunts are in the unsatisfiable core [2023-12-21 21:55:33,484 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-21 21:55:33,514 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 21:55:33,515 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-12-21 21:55:33,515 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-12-21 21:55:33,515 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1032342427] [2023-12-21 21:55:33,515 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1032342427] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-21 21:55:33,515 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-21 21:55:33,515 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2023-12-21 21:55:33,515 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2039362191] [2023-12-21 21:55:33,515 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-21 21:55:33,516 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2023-12-21 21:55:33,516 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-12-21 21:55:33,516 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2023-12-21 21:55:33,516 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2023-12-21 21:55:33,517 INFO L87 Difference]: Start difference. First operand 2345 states and 4286 transitions. Second operand has 5 states, 5 states have (on average 10.2) internal successors, (51), 4 states have internal predecessors, (51), 2 states have call successors, (5), 3 states have call predecessors, (5), 3 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) [2023-12-21 21:55:33,748 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-21 21:55:33,748 INFO L93 Difference]: Finished difference Result 2561 states and 4608 transitions. [2023-12-21 21:55:33,749 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2023-12-21 21:55:33,749 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 10.2) internal successors, (51), 4 states have internal predecessors, (51), 2 states have call successors, (5), 3 states have call predecessors, (5), 3 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) Word has length 61 [2023-12-21 21:55:33,749 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-21 21:55:33,756 INFO L225 Difference]: With dead ends: 2561 [2023-12-21 21:55:33,757 INFO L226 Difference]: Without dead ends: 2345 [2023-12-21 21:55:33,758 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 61 GetRequests, 57 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 21:55:33,758 INFO L413 NwaCegarLoop]: 4058 mSDtfsCounter, 4158 mSDsluCounter, 8066 mSDsCounter, 0 mSdLazyCounter, 177 mSolverCounterSat, 25 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 4168 SdHoareTripleChecker+Valid, 12124 SdHoareTripleChecker+Invalid, 202 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 25 IncrementalHoareTripleChecker+Valid, 177 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2023-12-21 21:55:33,759 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [4168 Valid, 12124 Invalid, 202 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [25 Valid, 177 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2023-12-21 21:55:33,761 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2345 states. [2023-12-21 21:55:33,807 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2345 to 2345. [2023-12-21 21:55:33,811 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2345 states, 2303 states have (on average 1.8341293964394267) internal successors, (4224), 2306 states have internal predecessors, (4224), 27 states have call successors, (27), 12 states have call predecessors, (27), 13 states have return successors, (28), 27 states have call predecessors, (28), 27 states have call successors, (28) [2023-12-21 21:55:33,817 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2345 states to 2345 states and 4279 transitions. [2023-12-21 21:55:33,832 INFO L78 Accepts]: Start accepts. Automaton has 2345 states and 4279 transitions. Word has length 61 [2023-12-21 21:55:33,832 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-21 21:55:33,832 INFO L495 AbstractCegarLoop]: Abstraction has 2345 states and 4279 transitions. [2023-12-21 21:55:33,832 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 10.2) internal successors, (51), 4 states have internal predecessors, (51), 2 states have call successors, (5), 3 states have call predecessors, (5), 3 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) [2023-12-21 21:55:33,833 INFO L276 IsEmpty]: Start isEmpty. Operand 2345 states and 4279 transitions. [2023-12-21 21:55:33,833 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 62 [2023-12-21 21:55:33,833 INFO L187 NwaCegarLoop]: Found error trace [2023-12-21 21:55:33,834 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] [2023-12-21 21:55:33,843 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 21:55:34,036 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 21:55:34,037 INFO L420 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-21 21:55:34,037 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-21 21:55:34,037 INFO L85 PathProgramCache]: Analyzing trace with hash -728065158, now seen corresponding path program 1 times [2023-12-21 21:55:34,038 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-12-21 21:55:34,038 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [630493714] [2023-12-21 21:55:34,038 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-21 21:55:34,038 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 21:55:34,038 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2023-12-21 21:55:34,040 INFO L229 MonitoredProcess]: Starting monitored process 5 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2023-12-21 21:55:34,103 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 21:55:34,143 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 21:55:34,145 INFO L262 TraceCheckSpWp]: Trace formula consists of 160 conjuncts, 4 conjunts are in the unsatisfiable core [2023-12-21 21:55:34,151 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-21 21:55:34,194 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 21:55:34,194 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-12-21 21:55:34,194 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-12-21 21:55:34,195 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [630493714] [2023-12-21 21:55:34,195 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [630493714] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-21 21:55:34,195 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-21 21:55:34,195 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2023-12-21 21:55:34,195 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1312170081] [2023-12-21 21:55:34,197 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-21 21:55:34,197 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2023-12-21 21:55:34,197 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-12-21 21:55:34,198 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2023-12-21 21:55:34,200 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2023-12-21 21:55:34,200 INFO L87 Difference]: Start difference. First operand 2345 states and 4279 transitions. Second operand has 5 states, 5 states have (on average 10.2) internal successors, (51), 4 states have internal predecessors, (51), 2 states have call successors, (5), 3 states have call predecessors, (5), 3 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) [2023-12-21 21:55:34,466 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-21 21:55:34,466 INFO L93 Difference]: Finished difference Result 2607 states and 4666 transitions. [2023-12-21 21:55:34,467 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2023-12-21 21:55:34,467 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 10.2) internal successors, (51), 4 states have internal predecessors, (51), 2 states have call successors, (5), 3 states have call predecessors, (5), 3 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) Word has length 61 [2023-12-21 21:55:34,467 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-21 21:55:34,475 INFO L225 Difference]: With dead ends: 2607 [2023-12-21 21:55:34,475 INFO L226 Difference]: Without dead ends: 2391 [2023-12-21 21:55:34,478 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 61 GetRequests, 57 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 21:55:34,479 INFO L413 NwaCegarLoop]: 4056 mSDtfsCounter, 4175 mSDsluCounter, 8062 mSDsCounter, 0 mSdLazyCounter, 216 mSolverCounterSat, 25 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 4185 SdHoareTripleChecker+Valid, 12118 SdHoareTripleChecker+Invalid, 241 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 25 IncrementalHoareTripleChecker+Valid, 216 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2023-12-21 21:55:34,480 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [4185 Valid, 12118 Invalid, 241 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [25 Valid, 216 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2023-12-21 21:55:34,484 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2391 states. [2023-12-21 21:55:34,537 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2391 to 2391. [2023-12-21 21:55:34,542 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2391 states, 2343 states have (on average 1.8237302603499788) internal successors, (4273), 2346 states have internal predecessors, (4273), 29 states have call successors, (29), 16 states have call predecessors, (29), 17 states have return successors, (30), 29 states have call predecessors, (30), 29 states have call successors, (30) [2023-12-21 21:55:34,549 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2391 states to 2391 states and 4332 transitions. [2023-12-21 21:55:34,550 INFO L78 Accepts]: Start accepts. Automaton has 2391 states and 4332 transitions. Word has length 61 [2023-12-21 21:55:34,551 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-21 21:55:34,551 INFO L495 AbstractCegarLoop]: Abstraction has 2391 states and 4332 transitions. [2023-12-21 21:55:34,552 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 10.2) internal successors, (51), 4 states have internal predecessors, (51), 2 states have call successors, (5), 3 states have call predecessors, (5), 3 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) [2023-12-21 21:55:34,552 INFO L276 IsEmpty]: Start isEmpty. Operand 2391 states and 4332 transitions. [2023-12-21 21:55:34,554 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 62 [2023-12-21 21:55:34,554 INFO L187 NwaCegarLoop]: Found error trace [2023-12-21 21:55:34,554 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] [2023-12-21 21:55:34,580 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (5)] Forceful destruction successful, exit code 0 [2023-12-21 21:55:34,758 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 21:55:34,759 INFO L420 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-21 21:55:34,759 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-21 21:55:34,759 INFO L85 PathProgramCache]: Analyzing trace with hash -488736198, now seen corresponding path program 1 times [2023-12-21 21:55:34,760 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-12-21 21:55:34,760 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [673473181] [2023-12-21 21:55:34,760 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-21 21:55:34,761 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 21:55:34,761 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2023-12-21 21:55:34,762 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 21:55:34,764 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 21:55:34,832 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 21:55:34,834 INFO L262 TraceCheckSpWp]: Trace formula consists of 158 conjuncts, 4 conjunts are in the unsatisfiable core [2023-12-21 21:55:34,838 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-21 21:55:34,874 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 21:55:34,875 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-12-21 21:55:34,875 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-12-21 21:55:34,875 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [673473181] [2023-12-21 21:55:34,875 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [673473181] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-21 21:55:34,875 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-21 21:55:34,875 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2023-12-21 21:55:34,875 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [671142827] [2023-12-21 21:55:34,875 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-21 21:55:34,876 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2023-12-21 21:55:34,877 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-12-21 21:55:34,877 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2023-12-21 21:55:34,877 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2023-12-21 21:55:34,877 INFO L87 Difference]: Start difference. First operand 2391 states and 4332 transitions. Second operand has 5 states, 5 states have (on average 10.2) internal successors, (51), 4 states have internal predecessors, (51), 2 states have call successors, (5), 3 states have call predecessors, (5), 3 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) [2023-12-21 21:55:35,120 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-21 21:55:35,120 INFO L93 Difference]: Finished difference Result 2699 states and 4772 transitions. [2023-12-21 21:55:35,120 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2023-12-21 21:55:35,121 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 10.2) internal successors, (51), 4 states have internal predecessors, (51), 2 states have call successors, (5), 3 states have call predecessors, (5), 3 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) Word has length 61 [2023-12-21 21:55:35,121 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-21 21:55:35,128 INFO L225 Difference]: With dead ends: 2699 [2023-12-21 21:55:35,128 INFO L226 Difference]: Without dead ends: 2437 [2023-12-21 21:55:35,130 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 61 GetRequests, 57 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 21:55:35,130 INFO L413 NwaCegarLoop]: 4053 mSDtfsCounter, 4169 mSDsluCounter, 8058 mSDsCounter, 0 mSdLazyCounter, 209 mSolverCounterSat, 27 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 4179 SdHoareTripleChecker+Valid, 12111 SdHoareTripleChecker+Invalid, 236 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 27 IncrementalHoareTripleChecker+Valid, 209 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2023-12-21 21:55:35,131 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [4179 Valid, 12111 Invalid, 236 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [27 Valid, 209 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2023-12-21 21:55:35,133 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2437 states. [2023-12-21 21:55:35,174 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2437 to 2437. [2023-12-21 21:55:35,177 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2437 states, 2383 states have (on average 1.8120016785564415) internal successors, (4318), 2386 states have internal predecessors, (4318), 31 states have call successors, (31), 20 states have call predecessors, (31), 21 states have return successors, (32), 31 states have call predecessors, (32), 31 states have call successors, (32) [2023-12-21 21:55:35,185 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2437 states to 2437 states and 4381 transitions. [2023-12-21 21:55:35,185 INFO L78 Accepts]: Start accepts. Automaton has 2437 states and 4381 transitions. Word has length 61 [2023-12-21 21:55:35,185 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-21 21:55:35,185 INFO L495 AbstractCegarLoop]: Abstraction has 2437 states and 4381 transitions. [2023-12-21 21:55:35,186 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 10.2) internal successors, (51), 4 states have internal predecessors, (51), 2 states have call successors, (5), 3 states have call predecessors, (5), 3 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) [2023-12-21 21:55:35,186 INFO L276 IsEmpty]: Start isEmpty. Operand 2437 states and 4381 transitions. [2023-12-21 21:55:35,186 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 62 [2023-12-21 21:55:35,186 INFO L187 NwaCegarLoop]: Found error trace [2023-12-21 21:55:35,186 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] [2023-12-21 21:55:35,199 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 21:55:35,396 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 21:55:35,397 INFO L420 AbstractCegarLoop]: === Iteration 6 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-21 21:55:35,397 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-21 21:55:35,397 INFO L85 PathProgramCache]: Analyzing trace with hash -1646538791, now seen corresponding path program 1 times [2023-12-21 21:55:35,397 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-12-21 21:55:35,397 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1883923248] [2023-12-21 21:55:35,397 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-21 21:55:35,398 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 21:55:35,398 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2023-12-21 21:55:35,401 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 21:55:35,404 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 21:55:35,554 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 21:55:35,557 INFO L262 TraceCheckSpWp]: Trace formula consists of 155 conjuncts, 2 conjunts are in the unsatisfiable core [2023-12-21 21:55:35,558 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-21 21:55:35,629 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 21:55:35,630 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-12-21 21:55:35,630 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-12-21 21:55:35,630 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1883923248] [2023-12-21 21:55:35,630 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1883923248] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-21 21:55:35,630 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-21 21:55:35,630 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2023-12-21 21:55:35,630 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1734143199] [2023-12-21 21:55:35,630 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-21 21:55:35,631 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-12-21 21:55:35,631 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-12-21 21:55:35,631 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-12-21 21:55:35,631 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-12-21 21:55:35,631 INFO L87 Difference]: Start difference. First operand 2437 states and 4381 transitions. Second operand has 3 states, 3 states have (on average 17.0) internal successors, (51), 2 states have internal predecessors, (51), 1 states have call successors, (5), 1 states have call predecessors, (5), 1 states have return successors, (5), 1 states have call predecessors, (5), 1 states have call successors, (5) [2023-12-21 21:55:35,732 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-21 21:55:35,732 INFO L93 Difference]: Finished difference Result 3036 states and 5188 transitions. [2023-12-21 21:55:35,732 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-12-21 21:55:35,733 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 17.0) internal successors, (51), 2 states have internal predecessors, (51), 1 states have call successors, (5), 1 states have call predecessors, (5), 1 states have return successors, (5), 1 states have call predecessors, (5), 1 states have call successors, (5) Word has length 61 [2023-12-21 21:55:35,733 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-21 21:55:35,741 INFO L225 Difference]: With dead ends: 3036 [2023-12-21 21:55:35,741 INFO L226 Difference]: Without dead ends: 2729 [2023-12-21 21:55:35,742 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 60 GetRequests, 59 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 21:55:35,743 INFO L413 NwaCegarLoop]: 4139 mSDtfsCounter, 4054 mSDsluCounter, 126 mSDsCounter, 0 mSdLazyCounter, 36 mSolverCounterSat, 3 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 4054 SdHoareTripleChecker+Valid, 4265 SdHoareTripleChecker+Invalid, 39 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 3 IncrementalHoareTripleChecker+Valid, 36 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2023-12-21 21:55:35,743 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [4054 Valid, 4265 Invalid, 39 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [3 Valid, 36 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2023-12-21 21:55:35,745 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2729 states. [2023-12-21 21:55:35,799 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2729 to 2727. [2023-12-21 21:55:35,803 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2727 states, 2625 states have (on average 1.7660952380952382) internal successors, (4636), 2631 states have internal predecessors, (4636), 58 states have call successors, (58), 40 states have call predecessors, (58), 42 states have return successors, (60), 56 states have call predecessors, (60), 58 states have call successors, (60) [2023-12-21 21:55:35,809 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2727 states to 2727 states and 4754 transitions. [2023-12-21 21:55:35,810 INFO L78 Accepts]: Start accepts. Automaton has 2727 states and 4754 transitions. Word has length 61 [2023-12-21 21:55:35,810 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-21 21:55:35,810 INFO L495 AbstractCegarLoop]: Abstraction has 2727 states and 4754 transitions. [2023-12-21 21:55:35,810 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 17.0) internal successors, (51), 2 states have internal predecessors, (51), 1 states have call successors, (5), 1 states have call predecessors, (5), 1 states have return successors, (5), 1 states have call predecessors, (5), 1 states have call successors, (5) [2023-12-21 21:55:35,810 INFO L276 IsEmpty]: Start isEmpty. Operand 2727 states and 4754 transitions. [2023-12-21 21:55:35,811 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 100 [2023-12-21 21:55:35,811 INFO L187 NwaCegarLoop]: Found error trace [2023-12-21 21:55:35,811 INFO L195 NwaCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 21:55:35,822 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 (7)] Ended with exit code 0 [2023-12-21 21:55:36,014 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 21:55:36,017 INFO L420 AbstractCegarLoop]: === Iteration 7 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-21 21:55:36,018 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-21 21:55:36,018 INFO L85 PathProgramCache]: Analyzing trace with hash -373963020, now seen corresponding path program 1 times [2023-12-21 21:55:36,018 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-12-21 21:55:36,018 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1853809645] [2023-12-21 21:55:36,019 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-21 21:55:36,019 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2023-12-21 21:55:36,019 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2023-12-21 21:55:36,020 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 21:55:36,037 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (8)] Waiting until timeout for monitored process [2023-12-21 21:55:36,088 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 21:55:36,093 INFO L262 TraceCheckSpWp]: Trace formula consists of 217 conjuncts, 4 conjunts are in the unsatisfiable core [2023-12-21 21:55:36,098 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-21 21:55:36,109 INFO L134 CoverageAnalysis]: Checked inductivity of 28 backedges. 5 proven. 0 refuted. 0 times theorem prover too weak. 23 trivial. 0 not checked. [2023-12-21 21:55:36,110 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-12-21 21:55:36,110 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-12-21 21:55:36,110 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1853809645] [2023-12-21 21:55:36,110 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1853809645] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-21 21:55:36,110 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-21 21:55:36,110 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2023-12-21 21:55:36,110 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [604216587] [2023-12-21 21:55:36,111 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-21 21:55:36,111 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2023-12-21 21:55:36,111 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-12-21 21:55:36,112 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2023-12-21 21:55:36,112 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2023-12-21 21:55:36,112 INFO L87 Difference]: Start difference. First operand 2727 states and 4754 transitions. Second operand has 4 states, 4 states have (on average 16.0) internal successors, (64), 4 states have internal predecessors, (64), 2 states have call successors, (7), 2 states have call predecessors, (7), 2 states have return successors, (7), 2 states have call predecessors, (7), 2 states have call successors, (7) [2023-12-21 21:55:36,223 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-21 21:55:36,224 INFO L93 Difference]: Finished difference Result 3420 states and 5699 transitions. [2023-12-21 21:55:36,224 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2023-12-21 21:55:36,224 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 16.0) internal successors, (64), 4 states have internal predecessors, (64), 2 states have call successors, (7), 2 states have call predecessors, (7), 2 states have return successors, (7), 2 states have call predecessors, (7), 2 states have call successors, (7) Word has length 99 [2023-12-21 21:55:36,225 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-21 21:55:36,233 INFO L225 Difference]: With dead ends: 3420 [2023-12-21 21:55:36,233 INFO L226 Difference]: Without dead ends: 2823 [2023-12-21 21:55:36,234 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 98 GetRequests, 96 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 21:55:36,235 INFO L413 NwaCegarLoop]: 4107 mSDtfsCounter, 20 mSDsluCounter, 8209 mSDsCounter, 0 mSdLazyCounter, 48 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 20 SdHoareTripleChecker+Valid, 12316 SdHoareTripleChecker+Invalid, 49 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 48 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2023-12-21 21:55:36,235 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [20 Valid, 12316 Invalid, 49 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 48 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2023-12-21 21:55:36,237 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2823 states. [2023-12-21 21:55:36,290 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2823 to 2739. [2023-12-21 21:55:36,294 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2739 states, 2637 states have (on average 1.7603337125521425) internal successors, (4642), 2643 states have internal predecessors, (4642), 58 states have call successors, (58), 40 states have call predecessors, (58), 42 states have return successors, (60), 56 states have call predecessors, (60), 58 states have call successors, (60) [2023-12-21 21:55:36,300 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2739 states to 2739 states and 4760 transitions. [2023-12-21 21:55:36,300 INFO L78 Accepts]: Start accepts. Automaton has 2739 states and 4760 transitions. Word has length 99 [2023-12-21 21:55:36,300 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-21 21:55:36,300 INFO L495 AbstractCegarLoop]: Abstraction has 2739 states and 4760 transitions. [2023-12-21 21:55:36,300 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 16.0) internal successors, (64), 4 states have internal predecessors, (64), 2 states have call successors, (7), 2 states have call predecessors, (7), 2 states have return successors, (7), 2 states have call predecessors, (7), 2 states have call successors, (7) [2023-12-21 21:55:36,301 INFO L276 IsEmpty]: Start isEmpty. Operand 2739 states and 4760 transitions. [2023-12-21 21:55:36,301 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 100 [2023-12-21 21:55:36,302 INFO L187 NwaCegarLoop]: Found error trace [2023-12-21 21:55:36,302 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 21:55:36,307 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 21:55:36,507 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 21:55:36,508 INFO L420 AbstractCegarLoop]: === Iteration 8 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-21 21:55:36,508 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-21 21:55:36,508 INFO L85 PathProgramCache]: Analyzing trace with hash -883841868, now seen corresponding path program 1 times [2023-12-21 21:55:36,509 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-12-21 21:55:36,509 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [112225718] [2023-12-21 21:55:36,509 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-21 21:55:36,509 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 21:55:36,509 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2023-12-21 21:55:36,510 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 21:55:36,534 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (9)] Waiting until timeout for monitored process [2023-12-21 21:55:36,597 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 21:55:36,599 INFO L262 TraceCheckSpWp]: Trace formula consists of 215 conjuncts, 4 conjunts are in the unsatisfiable core [2023-12-21 21:55:36,601 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-21 21:55:36,613 INFO L134 CoverageAnalysis]: Checked inductivity of 28 backedges. 10 proven. 0 refuted. 0 times theorem prover too weak. 18 trivial. 0 not checked. [2023-12-21 21:55:36,613 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-12-21 21:55:36,613 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-12-21 21:55:36,614 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [112225718] [2023-12-21 21:55:36,614 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [112225718] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-21 21:55:36,614 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-21 21:55:36,614 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2023-12-21 21:55:36,614 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1672577579] [2023-12-21 21:55:36,614 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-21 21:55:36,614 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2023-12-21 21:55:36,614 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-12-21 21:55:36,615 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2023-12-21 21:55:36,615 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2023-12-21 21:55:36,615 INFO L87 Difference]: Start difference. First operand 2739 states and 4760 transitions. Second operand has 4 states, 4 states have (on average 17.25) internal successors, (69), 4 states have internal predecessors, (69), 2 states have call successors, (7), 2 states have call predecessors, (7), 2 states have return successors, (7), 2 states have call predecessors, (7), 2 states have call successors, (7) [2023-12-21 21:55:36,709 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-21 21:55:36,710 INFO L93 Difference]: Finished difference Result 3388 states and 5630 transitions. [2023-12-21 21:55:36,710 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2023-12-21 21:55:36,710 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 17.25) internal successors, (69), 4 states have internal predecessors, (69), 2 states have call successors, (7), 2 states have call predecessors, (7), 2 states have return successors, (7), 2 states have call predecessors, (7), 2 states have call successors, (7) Word has length 99 [2023-12-21 21:55:36,711 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-21 21:55:36,718 INFO L225 Difference]: With dead ends: 3388 [2023-12-21 21:55:36,718 INFO L226 Difference]: Without dead ends: 2779 [2023-12-21 21:55:36,720 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 98 GetRequests, 96 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 21:55:36,721 INFO L413 NwaCegarLoop]: 4105 mSDtfsCounter, 11 mSDsluCounter, 8204 mSDsCounter, 0 mSdLazyCounter, 48 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 11 SdHoareTripleChecker+Valid, 12309 SdHoareTripleChecker+Invalid, 49 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 48 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2023-12-21 21:55:36,721 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [11 Valid, 12309 Invalid, 49 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 48 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2023-12-21 21:55:36,723 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2779 states. [2023-12-21 21:55:36,773 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2779 to 2747. [2023-12-21 21:55:36,777 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2747 states, 2645 states have (on average 1.7550094517958412) internal successors, (4642), 2651 states have internal predecessors, (4642), 58 states have call successors, (58), 40 states have call predecessors, (58), 42 states have return successors, (60), 56 states have call predecessors, (60), 58 states have call successors, (60) [2023-12-21 21:55:36,782 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2747 states to 2747 states and 4760 transitions. [2023-12-21 21:55:36,782 INFO L78 Accepts]: Start accepts. Automaton has 2747 states and 4760 transitions. Word has length 99 [2023-12-21 21:55:36,783 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-21 21:55:36,783 INFO L495 AbstractCegarLoop]: Abstraction has 2747 states and 4760 transitions. [2023-12-21 21:55:36,783 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 17.25) internal successors, (69), 4 states have internal predecessors, (69), 2 states have call successors, (7), 2 states have call predecessors, (7), 2 states have return successors, (7), 2 states have call predecessors, (7), 2 states have call successors, (7) [2023-12-21 21:55:36,783 INFO L276 IsEmpty]: Start isEmpty. Operand 2747 states and 4760 transitions. [2023-12-21 21:55:36,784 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 100 [2023-12-21 21:55:36,784 INFO L187 NwaCegarLoop]: Found error trace [2023-12-21 21:55:36,784 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 21:55:36,787 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 (9)] Ended with exit code 0 [2023-12-21 21:55:36,987 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 21:55:36,988 INFO L420 AbstractCegarLoop]: === Iteration 9 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-21 21:55:36,988 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-21 21:55:36,988 INFO L85 PathProgramCache]: Analyzing trace with hash -1884147980, now seen corresponding path program 1 times [2023-12-21 21:55:36,988 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-12-21 21:55:36,988 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [663659942] [2023-12-21 21:55:36,989 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-21 21:55:36,989 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 21:55:36,989 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2023-12-21 21:55:36,990 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 21:55:37,017 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 21:55:37,058 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 21:55:37,060 INFO L262 TraceCheckSpWp]: Trace formula consists of 213 conjuncts, 4 conjunts are in the unsatisfiable core [2023-12-21 21:55:37,062 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-21 21:55:37,073 INFO L134 CoverageAnalysis]: Checked inductivity of 28 backedges. 15 proven. 0 refuted. 0 times theorem prover too weak. 13 trivial. 0 not checked. [2023-12-21 21:55:37,073 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-12-21 21:55:37,073 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-12-21 21:55:37,073 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [663659942] [2023-12-21 21:55:37,074 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [663659942] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-21 21:55:37,074 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-21 21:55:37,074 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2023-12-21 21:55:37,074 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1227316764] [2023-12-21 21:55:37,074 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-21 21:55:37,074 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2023-12-21 21:55:37,074 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-12-21 21:55:37,075 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2023-12-21 21:55:37,075 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2023-12-21 21:55:37,075 INFO L87 Difference]: Start difference. First operand 2747 states and 4760 transitions. Second operand has 4 states, 4 states have (on average 18.5) internal successors, (74), 4 states have internal predecessors, (74), 2 states have call successors, (7), 2 states have call predecessors, (7), 2 states have return successors, (7), 2 states have call predecessors, (7), 2 states have call successors, (7) [2023-12-21 21:55:37,164 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-21 21:55:37,164 INFO L93 Difference]: Finished difference Result 3380 states and 5598 transitions. [2023-12-21 21:55:37,164 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2023-12-21 21:55:37,165 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 18.5) internal successors, (74), 4 states have internal predecessors, (74), 2 states have call successors, (7), 2 states have call predecessors, (7), 2 states have return successors, (7), 2 states have call predecessors, (7), 2 states have call successors, (7) Word has length 99 [2023-12-21 21:55:37,165 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-21 21:55:37,172 INFO L225 Difference]: With dead ends: 3380 [2023-12-21 21:55:37,172 INFO L226 Difference]: Without dead ends: 2763 [2023-12-21 21:55:37,174 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 98 GetRequests, 96 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 21:55:37,174 INFO L413 NwaCegarLoop]: 4105 mSDtfsCounter, 2 mSDsluCounter, 8205 mSDsCounter, 0 mSdLazyCounter, 48 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2 SdHoareTripleChecker+Valid, 12310 SdHoareTripleChecker+Invalid, 49 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 48 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2023-12-21 21:55:37,174 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [2 Valid, 12310 Invalid, 49 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 48 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2023-12-21 21:55:37,177 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2763 states. [2023-12-21 21:55:37,223 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2763 to 2755. [2023-12-21 21:55:37,228 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2755 states, 2653 states have (on average 1.7497173011684886) internal successors, (4642), 2659 states have internal predecessors, (4642), 58 states have call successors, (58), 40 states have call predecessors, (58), 42 states have return successors, (60), 56 states have call predecessors, (60), 58 states have call successors, (60) [2023-12-21 21:55:37,232 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2755 states to 2755 states and 4760 transitions. [2023-12-21 21:55:37,233 INFO L78 Accepts]: Start accepts. Automaton has 2755 states and 4760 transitions. Word has length 99 [2023-12-21 21:55:37,233 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-21 21:55:37,233 INFO L495 AbstractCegarLoop]: Abstraction has 2755 states and 4760 transitions. [2023-12-21 21:55:37,234 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 18.5) internal successors, (74), 4 states have internal predecessors, (74), 2 states have call successors, (7), 2 states have call predecessors, (7), 2 states have return successors, (7), 2 states have call predecessors, (7), 2 states have call successors, (7) [2023-12-21 21:55:37,234 INFO L276 IsEmpty]: Start isEmpty. Operand 2755 states and 4760 transitions. [2023-12-21 21:55:37,235 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 100 [2023-12-21 21:55:37,235 INFO L187 NwaCegarLoop]: Found error trace [2023-12-21 21:55:37,235 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 21:55:37,240 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 21:55:37,439 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 21:55:37,439 INFO L420 AbstractCegarLoop]: === Iteration 10 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-21 21:55:37,442 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-21 21:55:37,442 INFO L85 PathProgramCache]: Analyzing trace with hash 590625972, now seen corresponding path program 1 times [2023-12-21 21:55:37,443 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-12-21 21:55:37,443 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [40815386] [2023-12-21 21:55:37,443 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-21 21:55:37,443 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 21:55:37,443 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2023-12-21 21:55:37,444 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 21:55:37,445 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 21:55:37,561 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 21:55:37,563 INFO L262 TraceCheckSpWp]: Trace formula consists of 211 conjuncts, 6 conjunts are in the unsatisfiable core [2023-12-21 21:55:37,565 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-21 21:55:37,639 INFO L134 CoverageAnalysis]: Checked inductivity of 28 backedges. 17 proven. 0 refuted. 0 times theorem prover too weak. 11 trivial. 0 not checked. [2023-12-21 21:55:37,639 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-12-21 21:55:37,639 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-12-21 21:55:37,639 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [40815386] [2023-12-21 21:55:37,639 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [40815386] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-21 21:55:37,639 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-21 21:55:37,639 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2023-12-21 21:55:37,639 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [569628813] [2023-12-21 21:55:37,639 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-21 21:55:37,640 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2023-12-21 21:55:37,640 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-12-21 21:55:37,640 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2023-12-21 21:55:37,640 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2023-12-21 21:55:37,640 INFO L87 Difference]: Start difference. First operand 2755 states and 4760 transitions. Second operand has 5 states, 5 states have (on average 15.0) internal successors, (75), 4 states have internal predecessors, (75), 2 states have call successors, (7), 3 states have call predecessors, (7), 4 states have return successors, (7), 2 states have call predecessors, (7), 2 states have call successors, (7) [2023-12-21 21:55:37,929 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-21 21:55:37,929 INFO L93 Difference]: Finished difference Result 3483 states and 5682 transitions. [2023-12-21 21:55:37,930 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2023-12-21 21:55:37,930 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 15.0) internal successors, (75), 4 states have internal predecessors, (75), 2 states have call successors, (7), 3 states have call predecessors, (7), 4 states have return successors, (7), 2 states have call predecessors, (7), 2 states have call successors, (7) Word has length 99 [2023-12-21 21:55:37,930 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-21 21:55:37,936 INFO L225 Difference]: With dead ends: 3483 [2023-12-21 21:55:37,936 INFO L226 Difference]: Without dead ends: 2857 [2023-12-21 21:55:37,938 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 100 GetRequests, 95 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 21:55:37,938 INFO L413 NwaCegarLoop]: 4051 mSDtfsCounter, 4156 mSDsluCounter, 8054 mSDsCounter, 0 mSdLazyCounter, 245 mSolverCounterSat, 27 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 4165 SdHoareTripleChecker+Valid, 12105 SdHoareTripleChecker+Invalid, 272 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 27 IncrementalHoareTripleChecker+Valid, 245 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2023-12-21 21:55:37,939 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [4165 Valid, 12105 Invalid, 272 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [27 Valid, 245 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2023-12-21 21:55:37,941 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2857 states. [2023-12-21 21:55:37,997 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2857 to 2825. [2023-12-21 21:55:38,000 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2825 states, 2719 states have (on average 1.7271055535123208) internal successors, (4696), 2725 states have internal predecessors, (4696), 58 states have call successors, (58), 44 states have call predecessors, (58), 46 states have return successors, (60), 56 states have call predecessors, (60), 58 states have call successors, (60) [2023-12-21 21:55:38,005 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2825 states to 2825 states and 4814 transitions. [2023-12-21 21:55:38,005 INFO L78 Accepts]: Start accepts. Automaton has 2825 states and 4814 transitions. Word has length 99 [2023-12-21 21:55:38,006 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-21 21:55:38,006 INFO L495 AbstractCegarLoop]: Abstraction has 2825 states and 4814 transitions. [2023-12-21 21:55:38,006 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 15.0) internal successors, (75), 4 states have internal predecessors, (75), 2 states have call successors, (7), 3 states have call predecessors, (7), 4 states have return successors, (7), 2 states have call predecessors, (7), 2 states have call successors, (7) [2023-12-21 21:55:38,006 INFO L276 IsEmpty]: Start isEmpty. Operand 2825 states and 4814 transitions. [2023-12-21 21:55:38,007 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 100 [2023-12-21 21:55:38,007 INFO L187 NwaCegarLoop]: Found error trace [2023-12-21 21:55:38,007 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 21:55:38,013 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 21:55:38,210 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 21:55:38,210 INFO L420 AbstractCegarLoop]: === Iteration 11 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-21 21:55:38,211 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-21 21:55:38,211 INFO L85 PathProgramCache]: Analyzing trace with hash 1024355058, now seen corresponding path program 1 times [2023-12-21 21:55:38,211 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-12-21 21:55:38,211 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1792081937] [2023-12-21 21:55:38,211 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-21 21:55:38,211 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 21:55:38,212 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2023-12-21 21:55:38,213 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 21:55:38,214 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 21:55:38,274 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 21:55:38,276 INFO L262 TraceCheckSpWp]: Trace formula consists of 210 conjuncts, 8 conjunts are in the unsatisfiable core [2023-12-21 21:55:38,278 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-21 21:55:38,378 INFO L134 CoverageAnalysis]: Checked inductivity of 28 backedges. 11 proven. 0 refuted. 0 times theorem prover too weak. 17 trivial. 0 not checked. [2023-12-21 21:55:38,378 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-12-21 21:55:38,378 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-12-21 21:55:38,378 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1792081937] [2023-12-21 21:55:38,378 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1792081937] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-21 21:55:38,378 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-21 21:55:38,378 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2023-12-21 21:55:38,378 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1089361255] [2023-12-21 21:55:38,378 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-21 21:55:38,379 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2023-12-21 21:55:38,379 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-12-21 21:55:38,379 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2023-12-21 21:55:38,379 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2023-12-21 21:55:38,379 INFO L87 Difference]: Start difference. First operand 2825 states and 4814 transitions. Second operand has 4 states, 4 states have (on average 16.75) internal successors, (67), 4 states have internal predecessors, (67), 4 states have call successors, (8), 4 states have call predecessors, (8), 4 states have return successors, (8), 4 states have call predecessors, (8), 4 states have call successors, (8) [2023-12-21 21:55:38,684 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-21 21:55:38,685 INFO L93 Difference]: Finished difference Result 4128 states and 6405 transitions. [2023-12-21 21:55:38,685 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2023-12-21 21:55:38,685 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 16.75) internal successors, (67), 4 states have internal predecessors, (67), 4 states have call successors, (8), 4 states have call predecessors, (8), 4 states have return successors, (8), 4 states have call predecessors, (8), 4 states have call successors, (8) Word has length 99 [2023-12-21 21:55:38,686 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-21 21:55:38,693 INFO L225 Difference]: With dead ends: 4128 [2023-12-21 21:55:38,693 INFO L226 Difference]: Without dead ends: 3434 [2023-12-21 21:55:38,696 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 100 GetRequests, 97 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 21:55:38,697 INFO L413 NwaCegarLoop]: 4117 mSDtfsCounter, 4122 mSDsluCounter, 4151 mSDsCounter, 0 mSdLazyCounter, 159 mSolverCounterSat, 34 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 4126 SdHoareTripleChecker+Valid, 8268 SdHoareTripleChecker+Invalid, 193 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 34 IncrementalHoareTripleChecker+Valid, 159 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2023-12-21 21:55:38,697 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [4126 Valid, 8268 Invalid, 193 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [34 Valid, 159 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2023-12-21 21:55:38,700 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3434 states. [2023-12-21 21:55:38,777 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3434 to 3432. [2023-12-21 21:55:38,781 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3432 states, 3231 states have (on average 1.6425255338904363) internal successors, (5307), 3246 states have internal predecessors, (5307), 107 states have call successors, (107), 80 states have call predecessors, (107), 92 states have return successors, (131), 107 states have call predecessors, (131), 107 states have call successors, (131) [2023-12-21 21:55:38,788 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3432 states to 3432 states and 5545 transitions. [2023-12-21 21:55:38,788 INFO L78 Accepts]: Start accepts. Automaton has 3432 states and 5545 transitions. Word has length 99 [2023-12-21 21:55:38,788 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-21 21:55:38,788 INFO L495 AbstractCegarLoop]: Abstraction has 3432 states and 5545 transitions. [2023-12-21 21:55:38,789 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 16.75) internal successors, (67), 4 states have internal predecessors, (67), 4 states have call successors, (8), 4 states have call predecessors, (8), 4 states have return successors, (8), 4 states have call predecessors, (8), 4 states have call successors, (8) [2023-12-21 21:55:38,789 INFO L276 IsEmpty]: Start isEmpty. Operand 3432 states and 5545 transitions. [2023-12-21 21:55:38,790 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 100 [2023-12-21 21:55:38,790 INFO L187 NwaCegarLoop]: Found error trace [2023-12-21 21:55:38,790 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 21:55:38,811 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 21:55:38,993 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 21:55:38,994 INFO L420 AbstractCegarLoop]: === Iteration 12 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-21 21:55:38,994 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-21 21:55:38,994 INFO L85 PathProgramCache]: Analyzing trace with hash 995854768, now seen corresponding path program 1 times [2023-12-21 21:55:38,995 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-12-21 21:55:38,995 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1206970154] [2023-12-21 21:55:38,995 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-21 21:55:38,995 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 21:55:38,995 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2023-12-21 21:55:39,009 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 21:55:39,052 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 21:55:39,112 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 21:55:39,114 INFO L262 TraceCheckSpWp]: Trace formula consists of 210 conjuncts, 2 conjunts are in the unsatisfiable core [2023-12-21 21:55:39,116 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-21 21:55:39,126 INFO L134 CoverageAnalysis]: Checked inductivity of 28 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 28 trivial. 0 not checked. [2023-12-21 21:55:39,126 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-12-21 21:55:39,126 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-12-21 21:55:39,126 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1206970154] [2023-12-21 21:55:39,126 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1206970154] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-21 21:55:39,126 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-21 21:55:39,126 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2023-12-21 21:55:39,127 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1552297559] [2023-12-21 21:55:39,127 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-21 21:55:39,127 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-12-21 21:55:39,127 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-12-21 21:55:39,127 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-12-21 21:55:39,127 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-12-21 21:55:39,128 INFO L87 Difference]: Start difference. First operand 3432 states and 5545 transitions. Second operand has 3 states, 3 states have (on average 19.666666666666668) internal successors, (59), 3 states have internal predecessors, (59), 2 states have call successors, (7), 2 states have call predecessors, (7), 2 states have return successors, (7), 2 states have call predecessors, (7), 2 states have call successors, (7) [2023-12-21 21:55:39,206 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-21 21:55:39,206 INFO L93 Difference]: Finished difference Result 4728 states and 7106 transitions. [2023-12-21 21:55:39,207 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-12-21 21:55:39,207 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 19.666666666666668) internal successors, (59), 3 states have internal predecessors, (59), 2 states have call successors, (7), 2 states have call predecessors, (7), 2 states have return successors, (7), 2 states have call predecessors, (7), 2 states have call successors, (7) Word has length 99 [2023-12-21 21:55:39,207 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-21 21:55:39,214 INFO L225 Difference]: With dead ends: 4728 [2023-12-21 21:55:39,214 INFO L226 Difference]: Without dead ends: 3427 [2023-12-21 21:55:39,217 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 98 GetRequests, 97 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 21:55:39,217 INFO L413 NwaCegarLoop]: 4101 mSDtfsCounter, 152 mSDsluCounter, 3957 mSDsCounter, 0 mSdLazyCounter, 16 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 152 SdHoareTripleChecker+Valid, 8058 SdHoareTripleChecker+Invalid, 16 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 16 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2023-12-21 21:55:39,217 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [152 Valid, 8058 Invalid, 16 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 16 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2023-12-21 21:55:39,220 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3427 states. [2023-12-21 21:55:39,282 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3427 to 3427. [2023-12-21 21:55:39,286 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3427 states, 3229 states have (on average 1.642304118922267) internal successors, (5303), 3243 states have internal predecessors, (5303), 104 states have call successors, (104), 80 states have call predecessors, (104), 92 states have return successors, (128), 104 states have call predecessors, (128), 104 states have call successors, (128) [2023-12-21 21:55:39,293 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3427 states to 3427 states and 5535 transitions. [2023-12-21 21:55:39,293 INFO L78 Accepts]: Start accepts. Automaton has 3427 states and 5535 transitions. Word has length 99 [2023-12-21 21:55:39,293 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-21 21:55:39,293 INFO L495 AbstractCegarLoop]: Abstraction has 3427 states and 5535 transitions. [2023-12-21 21:55:39,294 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 19.666666666666668) internal successors, (59), 3 states have internal predecessors, (59), 2 states have call successors, (7), 2 states have call predecessors, (7), 2 states have return successors, (7), 2 states have call predecessors, (7), 2 states have call successors, (7) [2023-12-21 21:55:39,294 INFO L276 IsEmpty]: Start isEmpty. Operand 3427 states and 5535 transitions. [2023-12-21 21:55:39,295 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 102 [2023-12-21 21:55:39,295 INFO L187 NwaCegarLoop]: Found error trace [2023-12-21 21:55:39,295 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 21:55:39,312 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (13)] Forceful destruction successful, exit code 0 [2023-12-21 21:55:39,513 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 21:55:39,513 INFO L420 AbstractCegarLoop]: === Iteration 13 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-21 21:55:39,513 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-21 21:55:39,513 INFO L85 PathProgramCache]: Analyzing trace with hash -980429897, now seen corresponding path program 1 times [2023-12-21 21:55:39,514 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-12-21 21:55:39,514 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [889869849] [2023-12-21 21:55:39,514 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-21 21:55:39,514 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 21:55:39,514 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2023-12-21 21:55:39,515 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 21:55:39,519 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 21:55:39,581 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 21:55:39,583 INFO L262 TraceCheckSpWp]: Trace formula consists of 212 conjuncts, 8 conjunts are in the unsatisfiable core [2023-12-21 21:55:39,584 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-21 21:55:39,677 INFO L134 CoverageAnalysis]: Checked inductivity of 28 backedges. 11 proven. 0 refuted. 0 times theorem prover too weak. 17 trivial. 0 not checked. [2023-12-21 21:55:39,677 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-12-21 21:55:39,678 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-12-21 21:55:39,678 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [889869849] [2023-12-21 21:55:39,678 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [889869849] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-21 21:55:39,678 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-21 21:55:39,678 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2023-12-21 21:55:39,678 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1668150898] [2023-12-21 21:55:39,678 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-21 21:55:39,678 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2023-12-21 21:55:39,678 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-12-21 21:55:39,679 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2023-12-21 21:55:39,679 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2023-12-21 21:55:39,679 INFO L87 Difference]: Start difference. First operand 3427 states and 5535 transitions. Second operand has 4 states, 4 states have (on average 17.25) internal successors, (69), 4 states have internal predecessors, (69), 4 states have call successors, (8), 4 states have call predecessors, (8), 4 states have return successors, (8), 4 states have call predecessors, (8), 4 states have call successors, (8) [2023-12-21 21:55:40,009 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-21 21:55:40,009 INFO L93 Difference]: Finished difference Result 5795 states and 8408 transitions. [2023-12-21 21:55:40,009 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2023-12-21 21:55:40,010 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 17.25) internal successors, (69), 4 states have internal predecessors, (69), 4 states have call successors, (8), 4 states have call predecessors, (8), 4 states have return successors, (8), 4 states have call predecessors, (8), 4 states have call successors, (8) Word has length 101 [2023-12-21 21:55:40,010 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-21 21:55:40,017 INFO L225 Difference]: With dead ends: 5795 [2023-12-21 21:55:40,017 INFO L226 Difference]: Without dead ends: 4499 [2023-12-21 21:55:40,018 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 102 GetRequests, 99 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 21:55:40,019 INFO L413 NwaCegarLoop]: 4100 mSDtfsCounter, 4117 mSDsluCounter, 4133 mSDsCounter, 0 mSdLazyCounter, 154 mSolverCounterSat, 35 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 4122 SdHoareTripleChecker+Valid, 8233 SdHoareTripleChecker+Invalid, 189 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 35 IncrementalHoareTripleChecker+Valid, 154 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2023-12-21 21:55:40,019 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [4122 Valid, 8233 Invalid, 189 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [35 Valid, 154 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2023-12-21 21:55:40,022 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 4499 states. [2023-12-21 21:55:40,123 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 4499 to 4497. [2023-12-21 21:55:40,129 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 4497 states, 4128 states have (on average 1.5436046511627908) internal successors, (6372), 4159 states have internal predecessors, (6372), 191 states have call successors, (191), 144 states have call predecessors, (191), 176 states have return successors, (259), 195 states have call predecessors, (259), 191 states have call successors, (259) [2023-12-21 21:55:40,137 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4497 states to 4497 states and 6822 transitions. [2023-12-21 21:55:40,137 INFO L78 Accepts]: Start accepts. Automaton has 4497 states and 6822 transitions. Word has length 101 [2023-12-21 21:55:40,137 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-21 21:55:40,138 INFO L495 AbstractCegarLoop]: Abstraction has 4497 states and 6822 transitions. [2023-12-21 21:55:40,138 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 17.25) internal successors, (69), 4 states have internal predecessors, (69), 4 states have call successors, (8), 4 states have call predecessors, (8), 4 states have return successors, (8), 4 states have call predecessors, (8), 4 states have call successors, (8) [2023-12-21 21:55:40,138 INFO L276 IsEmpty]: Start isEmpty. Operand 4497 states and 6822 transitions. [2023-12-21 21:55:40,140 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 102 [2023-12-21 21:55:40,140 INFO L187 NwaCegarLoop]: Found error trace [2023-12-21 21:55:40,140 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 21:55:40,161 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 21:55:40,344 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 21:55:40,345 INFO L420 AbstractCegarLoop]: === Iteration 14 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-21 21:55:40,345 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-21 21:55:40,345 INFO L85 PathProgramCache]: Analyzing trace with hash -1863938887, now seen corresponding path program 1 times [2023-12-21 21:55:40,345 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-12-21 21:55:40,345 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1498822917] [2023-12-21 21:55:40,346 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-21 21:55:40,346 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 21:55:40,346 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2023-12-21 21:55:40,348 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 21:55:40,369 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 21:55:40,410 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 21:55:40,412 INFO L262 TraceCheckSpWp]: Trace formula consists of 212 conjuncts, 2 conjunts are in the unsatisfiable core [2023-12-21 21:55:40,414 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-21 21:55:40,424 INFO L134 CoverageAnalysis]: Checked inductivity of 28 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 28 trivial. 0 not checked. [2023-12-21 21:55:40,424 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-12-21 21:55:40,424 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-12-21 21:55:40,424 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1498822917] [2023-12-21 21:55:40,424 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1498822917] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-21 21:55:40,424 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-21 21:55:40,425 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2023-12-21 21:55:40,425 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1668240781] [2023-12-21 21:55:40,425 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-21 21:55:40,425 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-12-21 21:55:40,425 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-12-21 21:55:40,425 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-12-21 21:55:40,425 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-12-21 21:55:40,426 INFO L87 Difference]: Start difference. First operand 4497 states and 6822 transitions. Second operand has 3 states, 3 states have (on average 20.333333333333332) internal successors, (61), 3 states have internal predecessors, (61), 2 states have call successors, (7), 2 states have call predecessors, (7), 2 states have return successors, (7), 2 states have call predecessors, (7), 2 states have call successors, (7) [2023-12-21 21:55:40,538 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-21 21:55:40,538 INFO L93 Difference]: Finished difference Result 6859 states and 9663 transitions. [2023-12-21 21:55:40,538 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-12-21 21:55:40,538 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 20.333333333333332) internal successors, (61), 3 states have internal predecessors, (61), 2 states have call successors, (7), 2 states have call predecessors, (7), 2 states have return successors, (7), 2 states have call predecessors, (7), 2 states have call successors, (7) Word has length 101 [2023-12-21 21:55:40,538 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-21 21:55:40,547 INFO L225 Difference]: With dead ends: 6859 [2023-12-21 21:55:40,547 INFO L226 Difference]: Without dead ends: 4493 [2023-12-21 21:55:40,551 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 100 GetRequests, 99 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 21:55:40,551 INFO L413 NwaCegarLoop]: 4100 mSDtfsCounter, 150 mSDsluCounter, 3957 mSDsCounter, 0 mSdLazyCounter, 16 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 150 SdHoareTripleChecker+Valid, 8057 SdHoareTripleChecker+Invalid, 16 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 16 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2023-12-21 21:55:40,552 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [150 Valid, 8057 Invalid, 16 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 16 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2023-12-21 21:55:40,555 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 4493 states. [2023-12-21 21:55:40,664 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 4493 to 4493. [2023-12-21 21:55:40,670 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 4493 states, 4127 states have (on average 1.5434940634843712) internal successors, (6370), 4157 states have internal predecessors, (6370), 188 states have call successors, (188), 144 states have call predecessors, (188), 176 states have return successors, (256), 192 states have call predecessors, (256), 188 states have call successors, (256) [2023-12-21 21:55:40,677 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4493 states to 4493 states and 6814 transitions. [2023-12-21 21:55:40,678 INFO L78 Accepts]: Start accepts. Automaton has 4493 states and 6814 transitions. Word has length 101 [2023-12-21 21:55:40,678 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-21 21:55:40,678 INFO L495 AbstractCegarLoop]: Abstraction has 4493 states and 6814 transitions. [2023-12-21 21:55:40,678 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 20.333333333333332) internal successors, (61), 3 states have internal predecessors, (61), 2 states have call successors, (7), 2 states have call predecessors, (7), 2 states have return successors, (7), 2 states have call predecessors, (7), 2 states have call successors, (7) [2023-12-21 21:55:40,678 INFO L276 IsEmpty]: Start isEmpty. Operand 4493 states and 6814 transitions. [2023-12-21 21:55:40,681 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 104 [2023-12-21 21:55:40,681 INFO L187 NwaCegarLoop]: Found error trace [2023-12-21 21:55:40,681 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 21:55:40,697 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (15)] Forceful destruction successful, exit code 0 [2023-12-21 21:55:40,885 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 21:55:40,885 INFO L420 AbstractCegarLoop]: === Iteration 15 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-21 21:55:40,886 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-21 21:55:40,886 INFO L85 PathProgramCache]: Analyzing trace with hash 394802738, now seen corresponding path program 1 times [2023-12-21 21:55:40,886 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-12-21 21:55:40,886 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [470084234] [2023-12-21 21:55:40,886 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-21 21:55:40,886 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 21:55:40,886 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2023-12-21 21:55:40,887 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 21:55:40,919 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 21:55:40,956 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 21:55:40,959 INFO L262 TraceCheckSpWp]: Trace formula consists of 214 conjuncts, 2 conjunts are in the unsatisfiable core [2023-12-21 21:55:40,960 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-21 21:55:40,983 INFO L134 CoverageAnalysis]: Checked inductivity of 28 backedges. 11 proven. 0 refuted. 0 times theorem prover too weak. 17 trivial. 0 not checked. [2023-12-21 21:55:40,983 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-12-21 21:55:40,983 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-12-21 21:55:40,983 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [470084234] [2023-12-21 21:55:40,984 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [470084234] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-21 21:55:40,984 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-21 21:55:40,984 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2023-12-21 21:55:40,984 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [212723161] [2023-12-21 21:55:40,984 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-21 21:55:40,984 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-12-21 21:55:40,984 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-12-21 21:55:40,985 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-12-21 21:55:40,985 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-12-21 21:55:40,985 INFO L87 Difference]: Start difference. First operand 4493 states and 6814 transitions. Second operand has 3 states, 3 states have (on average 23.666666666666668) internal successors, (71), 3 states have internal predecessors, (71), 2 states have call successors, (8), 2 states have call predecessors, (8), 2 states have return successors, (8), 2 states have call predecessors, (8), 2 states have call successors, (8) [2023-12-21 21:55:41,183 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-21 21:55:41,183 INFO L93 Difference]: Finished difference Result 8645 states and 11864 transitions. [2023-12-21 21:55:41,184 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-12-21 21:55:41,184 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 23.666666666666668) internal successors, (71), 3 states have internal predecessors, (71), 2 states have call successors, (8), 2 states have call predecessors, (8), 2 states have return successors, (8), 2 states have call predecessors, (8), 2 states have call successors, (8) Word has length 103 [2023-12-21 21:55:41,184 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-21 21:55:41,196 INFO L225 Difference]: With dead ends: 8645 [2023-12-21 21:55:41,196 INFO L226 Difference]: Without dead ends: 5401 [2023-12-21 21:55:41,203 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 102 GetRequests, 101 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 21:55:41,204 INFO L413 NwaCegarLoop]: 4214 mSDtfsCounter, 122 mSDsluCounter, 4093 mSDsCounter, 0 mSdLazyCounter, 48 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 122 SdHoareTripleChecker+Valid, 8307 SdHoareTripleChecker+Invalid, 50 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 48 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2023-12-21 21:55:41,204 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [122 Valid, 8307 Invalid, 50 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 48 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2023-12-21 21:55:41,209 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 5401 states. [2023-12-21 21:55:41,347 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 5401 to 5401. [2023-12-21 21:55:41,352 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5401 states, 4895 states have (on average 1.4862104187946885) internal successors, (7275), 4931 states have internal predecessors, (7275), 264 states have call successors, (264), 200 states have call predecessors, (264), 240 states have return successors, (366), 270 states have call predecessors, (366), 264 states have call successors, (366) [2023-12-21 21:55:41,358 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5401 states to 5401 states and 7905 transitions. [2023-12-21 21:55:41,358 INFO L78 Accepts]: Start accepts. Automaton has 5401 states and 7905 transitions. Word has length 103 [2023-12-21 21:55:41,358 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-21 21:55:41,359 INFO L495 AbstractCegarLoop]: Abstraction has 5401 states and 7905 transitions. [2023-12-21 21:55:41,359 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 23.666666666666668) internal successors, (71), 3 states have internal predecessors, (71), 2 states have call successors, (8), 2 states have call predecessors, (8), 2 states have return successors, (8), 2 states have call predecessors, (8), 2 states have call successors, (8) [2023-12-21 21:55:41,359 INFO L276 IsEmpty]: Start isEmpty. Operand 5401 states and 7905 transitions. [2023-12-21 21:55:41,361 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 130 [2023-12-21 21:55:41,361 INFO L187 NwaCegarLoop]: Found error trace [2023-12-21 21:55:41,361 INFO L195 NwaCegarLoop]: trace histogram [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] [2023-12-21 21:55:41,383 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 21:55:41,564 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 21:55:41,565 INFO L420 AbstractCegarLoop]: === Iteration 16 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-21 21:55:41,565 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-21 21:55:41,565 INFO L85 PathProgramCache]: Analyzing trace with hash -1434226325, now seen corresponding path program 1 times [2023-12-21 21:55:41,565 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-12-21 21:55:41,565 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [768727400] [2023-12-21 21:55:41,565 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-21 21:55:41,565 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2023-12-21 21:55:41,566 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2023-12-21 21:55:41,566 INFO L229 MonitoredProcess]: Starting monitored process 17 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2023-12-21 21:55:41,596 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 21:55:41,682 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 21:55:41,685 INFO L262 TraceCheckSpWp]: Trace formula consists of 261 conjuncts, 2 conjunts are in the unsatisfiable core [2023-12-21 21:55:41,687 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-21 21:55:41,780 INFO L134 CoverageAnalysis]: Checked inductivity of 63 backedges. 46 proven. 0 refuted. 0 times theorem prover too weak. 17 trivial. 0 not checked. [2023-12-21 21:55:41,781 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-12-21 21:55:41,781 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-12-21 21:55:41,781 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [768727400] [2023-12-21 21:55:41,781 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [768727400] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-21 21:55:41,781 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-21 21:55:41,781 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2023-12-21 21:55:41,781 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1825591438] [2023-12-21 21:55:41,781 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-21 21:55:41,781 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-12-21 21:55:41,782 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-12-21 21:55:41,782 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-12-21 21:55:41,782 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-12-21 21:55:41,782 INFO L87 Difference]: Start difference. First operand 5401 states and 7905 transitions. Second operand has 3 states, 3 states have (on average 31.0) internal successors, (93), 2 states have internal predecessors, (93), 2 states have call successors, (10), 2 states have call predecessors, (10), 2 states have return successors, (10), 2 states have call predecessors, (10), 2 states have call successors, (10) [2023-12-21 21:55:42,098 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-21 21:55:42,098 INFO L93 Difference]: Finished difference Result 9580 states and 12945 transitions. [2023-12-21 21:55:42,099 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-12-21 21:55:42,099 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 31.0) internal successors, (93), 2 states have internal predecessors, (93), 2 states have call successors, (10), 2 states have call predecessors, (10), 2 states have return successors, (10), 2 states have call predecessors, (10), 2 states have call successors, (10) Word has length 129 [2023-12-21 21:55:42,099 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-21 21:55:42,111 INFO L225 Difference]: With dead ends: 9580 [2023-12-21 21:55:42,111 INFO L226 Difference]: Without dead ends: 6309 [2023-12-21 21:55:42,115 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 128 GetRequests, 127 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 21:55:42,116 INFO L413 NwaCegarLoop]: 4100 mSDtfsCounter, 4020 mSDsluCounter, 125 mSDsCounter, 0 mSdLazyCounter, 32 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 4020 SdHoareTripleChecker+Valid, 4225 SdHoareTripleChecker+Invalid, 34 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 32 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2023-12-21 21:55:42,116 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [4020 Valid, 4225 Invalid, 34 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 32 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2023-12-21 21:55:42,120 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 6309 states. [2023-12-21 21:55:42,296 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 6309 to 6297. [2023-12-21 21:55:42,301 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 6297 states, 5651 states have (on average 1.4399221376747477) internal successors, (8137), 5693 states have internal predecessors, (8137), 340 states have call successors, (340), 256 states have call predecessors, (340), 304 states have return successors, (462), 348 states have call predecessors, (462), 340 states have call successors, (462) [2023-12-21 21:55:42,310 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6297 states to 6297 states and 8939 transitions. [2023-12-21 21:55:42,310 INFO L78 Accepts]: Start accepts. Automaton has 6297 states and 8939 transitions. Word has length 129 [2023-12-21 21:55:42,311 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-21 21:55:42,311 INFO L495 AbstractCegarLoop]: Abstraction has 6297 states and 8939 transitions. [2023-12-21 21:55:42,311 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 31.0) internal successors, (93), 2 states have internal predecessors, (93), 2 states have call successors, (10), 2 states have call predecessors, (10), 2 states have return successors, (10), 2 states have call predecessors, (10), 2 states have call successors, (10) [2023-12-21 21:55:42,311 INFO L276 IsEmpty]: Start isEmpty. Operand 6297 states and 8939 transitions. [2023-12-21 21:55:42,314 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 148 [2023-12-21 21:55:42,314 INFO L187 NwaCegarLoop]: Found error trace [2023-12-21 21:55:42,315 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, 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] [2023-12-21 21:55:42,321 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (17)] Forceful destruction successful, exit code 0 [2023-12-21 21:55:42,519 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 21:55:42,519 INFO L420 AbstractCegarLoop]: === Iteration 17 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-21 21:55:42,519 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-21 21:55:42,519 INFO L85 PathProgramCache]: Analyzing trace with hash 1759432602, now seen corresponding path program 1 times [2023-12-21 21:55:42,519 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-12-21 21:55:42,520 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [801157064] [2023-12-21 21:55:42,520 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-21 21:55:42,520 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 21:55:42,520 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2023-12-21 21:55:42,521 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 21:55:42,549 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 21:55:42,597 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 21:55:42,600 INFO L262 TraceCheckSpWp]: Trace formula consists of 284 conjuncts, 4 conjunts are in the unsatisfiable core [2023-12-21 21:55:42,602 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-21 21:55:42,659 INFO L134 CoverageAnalysis]: Checked inductivity of 90 backedges. 51 proven. 0 refuted. 0 times theorem prover too weak. 39 trivial. 0 not checked. [2023-12-21 21:55:42,659 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-12-21 21:55:42,659 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-12-21 21:55:42,659 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [801157064] [2023-12-21 21:55:42,659 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [801157064] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-21 21:55:42,659 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-21 21:55:42,660 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2023-12-21 21:55:42,660 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1598011898] [2023-12-21 21:55:42,660 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-21 21:55:42,660 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2023-12-21 21:55:42,660 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-12-21 21:55:42,661 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2023-12-21 21:55:42,661 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2023-12-21 21:55:42,661 INFO L87 Difference]: Start difference. First operand 6297 states and 8939 transitions. Second operand has 4 states, 4 states have (on average 23.75) internal successors, (95), 4 states have internal predecessors, (95), 3 states have call successors, (9), 4 states have call predecessors, (9), 4 states have return successors, (9), 3 states have call predecessors, (9), 3 states have call successors, (9) [2023-12-21 21:55:42,977 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-21 21:55:42,977 INFO L93 Difference]: Finished difference Result 10497 states and 13986 transitions. [2023-12-21 21:55:42,977 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2023-12-21 21:55:42,977 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 23.75) internal successors, (95), 4 states have internal predecessors, (95), 3 states have call successors, (9), 4 states have call predecessors, (9), 4 states have return successors, (9), 3 states have call predecessors, (9), 3 states have call successors, (9) Word has length 147 [2023-12-21 21:55:42,978 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-21 21:55:42,990 INFO L225 Difference]: With dead ends: 10497 [2023-12-21 21:55:42,990 INFO L226 Difference]: Without dead ends: 6331 [2023-12-21 21:55:42,999 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 148 GetRequests, 145 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 21:55:42,999 INFO L413 NwaCegarLoop]: 4068 mSDtfsCounter, 4125 mSDsluCounter, 4114 mSDsCounter, 0 mSdLazyCounter, 140 mSolverCounterSat, 36 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 4131 SdHoareTripleChecker+Valid, 8182 SdHoareTripleChecker+Invalid, 176 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 36 IncrementalHoareTripleChecker+Valid, 140 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2023-12-21 21:55:42,999 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [4131 Valid, 8182 Invalid, 176 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [36 Valid, 140 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2023-12-21 21:55:43,004 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 6331 states. [2023-12-21 21:55:43,186 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 6331 to 6331. [2023-12-21 21:55:43,193 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 6331 states, 5677 states have (on average 1.4298044741941167) internal successors, (8117), 5723 states have internal predecessors, (8117), 340 states have call successors, (340), 256 states have call predecessors, (340), 312 states have return successors, (420), 352 states have call predecessors, (420), 340 states have call successors, (420) [2023-12-21 21:55:43,202 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6331 states to 6331 states and 8877 transitions. [2023-12-21 21:55:43,203 INFO L78 Accepts]: Start accepts. Automaton has 6331 states and 8877 transitions. Word has length 147 [2023-12-21 21:55:43,203 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-21 21:55:43,203 INFO L495 AbstractCegarLoop]: Abstraction has 6331 states and 8877 transitions. [2023-12-21 21:55:43,204 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 23.75) internal successors, (95), 4 states have internal predecessors, (95), 3 states have call successors, (9), 4 states have call predecessors, (9), 4 states have return successors, (9), 3 states have call predecessors, (9), 3 states have call successors, (9) [2023-12-21 21:55:43,204 INFO L276 IsEmpty]: Start isEmpty. Operand 6331 states and 8877 transitions. [2023-12-21 21:55:43,208 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 149 [2023-12-21 21:55:43,208 INFO L187 NwaCegarLoop]: Found error trace [2023-12-21 21:55:43,208 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, 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] [2023-12-21 21:55:43,232 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (18)] Forceful destruction successful, exit code 0 [2023-12-21 21:55:43,433 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 21:55:43,435 INFO L420 AbstractCegarLoop]: === Iteration 18 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-21 21:55:43,435 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-21 21:55:43,435 INFO L85 PathProgramCache]: Analyzing trace with hash 2015862314, now seen corresponding path program 1 times [2023-12-21 21:55:43,435 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-12-21 21:55:43,435 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [832166896] [2023-12-21 21:55:43,435 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-21 21:55:43,435 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 21:55:43,436 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2023-12-21 21:55:43,457 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 21:55:43,462 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 21:55:43,546 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 21:55:43,549 INFO L262 TraceCheckSpWp]: Trace formula consists of 285 conjuncts, 2 conjunts are in the unsatisfiable core [2023-12-21 21:55:43,550 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-21 21:55:43,571 INFO L134 CoverageAnalysis]: Checked inductivity of 90 backedges. 73 proven. 0 refuted. 0 times theorem prover too weak. 17 trivial. 0 not checked. [2023-12-21 21:55:43,571 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-12-21 21:55:43,571 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-12-21 21:55:43,571 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [832166896] [2023-12-21 21:55:43,571 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [832166896] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-21 21:55:43,571 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-21 21:55:43,571 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2023-12-21 21:55:43,572 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1989972679] [2023-12-21 21:55:43,572 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-21 21:55:43,572 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-12-21 21:55:43,572 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-12-21 21:55:43,572 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-12-21 21:55:43,572 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-12-21 21:55:43,573 INFO L87 Difference]: Start difference. First operand 6331 states and 8877 transitions. Second operand has 3 states, 3 states have (on average 36.666666666666664) internal successors, (110), 3 states have internal predecessors, (110), 3 states have call successors, (11), 3 states have call predecessors, (11), 3 states have return successors, (11), 3 states have call predecessors, (11), 3 states have call successors, (11) [2023-12-21 21:55:43,774 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-21 21:55:43,775 INFO L93 Difference]: Finished difference Result 9643 states and 12771 transitions. [2023-12-21 21:55:43,775 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-12-21 21:55:43,775 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 36.666666666666664) internal successors, (110), 3 states have internal predecessors, (110), 3 states have call successors, (11), 3 states have call predecessors, (11), 3 states have return successors, (11), 3 states have call predecessors, (11), 3 states have call successors, (11) Word has length 148 [2023-12-21 21:55:43,775 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-21 21:55:43,787 INFO L225 Difference]: With dead ends: 9643 [2023-12-21 21:55:43,787 INFO L226 Difference]: Without dead ends: 6333 [2023-12-21 21:55:43,793 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 147 GetRequests, 146 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 21:55:43,793 INFO L413 NwaCegarLoop]: 4204 mSDtfsCounter, 112 mSDsluCounter, 4094 mSDsCounter, 0 mSdLazyCounter, 44 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 112 SdHoareTripleChecker+Valid, 8298 SdHoareTripleChecker+Invalid, 45 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 44 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2023-12-21 21:55:43,793 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [112 Valid, 8298 Invalid, 45 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 44 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2023-12-21 21:55:43,798 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 6333 states. [2023-12-21 21:55:44,088 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 6333 to 6331. [2023-12-21 21:55:44,094 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 6331 states, 5677 states have (on average 1.4273383829487405) internal successors, (8103), 5723 states have internal predecessors, (8103), 340 states have call successors, (340), 256 states have call predecessors, (340), 312 states have return successors, (414), 352 states have call predecessors, (414), 340 states have call successors, (414) [2023-12-21 21:55:44,102 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6331 states to 6331 states and 8857 transitions. [2023-12-21 21:55:44,102 INFO L78 Accepts]: Start accepts. Automaton has 6331 states and 8857 transitions. Word has length 148 [2023-12-21 21:55:44,102 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-21 21:55:44,102 INFO L495 AbstractCegarLoop]: Abstraction has 6331 states and 8857 transitions. [2023-12-21 21:55:44,102 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 36.666666666666664) internal successors, (110), 3 states have internal predecessors, (110), 3 states have call successors, (11), 3 states have call predecessors, (11), 3 states have return successors, (11), 3 states have call predecessors, (11), 3 states have call successors, (11) [2023-12-21 21:55:44,102 INFO L276 IsEmpty]: Start isEmpty. Operand 6331 states and 8857 transitions. [2023-12-21 21:55:44,106 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 175 [2023-12-21 21:55:44,106 INFO L187 NwaCegarLoop]: Found error trace [2023-12-21 21:55:44,106 INFO L195 NwaCegarLoop]: trace histogram [4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 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] [2023-12-21 21:55:44,126 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (19)] Ended with exit code 0 [2023-12-21 21:55:44,309 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 21:55:44,310 INFO L420 AbstractCegarLoop]: === Iteration 19 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-21 21:55:44,310 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-21 21:55:44,310 INFO L85 PathProgramCache]: Analyzing trace with hash -675773181, now seen corresponding path program 1 times [2023-12-21 21:55:44,310 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-12-21 21:55:44,310 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [2081569070] [2023-12-21 21:55:44,311 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-21 21:55:44,311 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 21:55:44,311 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2023-12-21 21:55:44,312 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 21:55:44,346 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 21:55:44,399 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 21:55:44,402 INFO L262 TraceCheckSpWp]: Trace formula consists of 332 conjuncts, 2 conjunts are in the unsatisfiable core [2023-12-21 21:55:44,404 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-21 21:55:44,519 INFO L134 CoverageAnalysis]: Checked inductivity of 143 backedges. 97 proven. 0 refuted. 0 times theorem prover too weak. 46 trivial. 0 not checked. [2023-12-21 21:55:44,519 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-12-21 21:55:44,519 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-12-21 21:55:44,519 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [2081569070] [2023-12-21 21:55:44,519 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [2081569070] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-21 21:55:44,519 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-21 21:55:44,519 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2023-12-21 21:55:44,519 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2141898933] [2023-12-21 21:55:44,519 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-21 21:55:44,520 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-12-21 21:55:44,521 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-12-21 21:55:44,521 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-12-21 21:55:44,521 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-12-21 21:55:44,521 INFO L87 Difference]: Start difference. First operand 6331 states and 8857 transitions. Second operand has 3 states, 3 states have (on average 38.333333333333336) internal successors, (115), 2 states have internal predecessors, (115), 2 states have call successors, (11), 2 states have call predecessors, (11), 2 states have return successors, (11), 2 states have call predecessors, (11), 2 states have call successors, (11) [2023-12-21 21:55:44,764 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-21 21:55:44,764 INFO L93 Difference]: Finished difference Result 11306 states and 14641 transitions. [2023-12-21 21:55:44,764 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-12-21 21:55:44,764 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 38.333333333333336) internal successors, (115), 2 states have internal predecessors, (115), 2 states have call successors, (11), 2 states have call predecessors, (11), 2 states have return successors, (11), 2 states have call predecessors, (11), 2 states have call successors, (11) Word has length 174 [2023-12-21 21:55:44,765 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-21 21:55:44,777 INFO L225 Difference]: With dead ends: 11306 [2023-12-21 21:55:44,778 INFO L226 Difference]: Without dead ends: 7105 [2023-12-21 21:55:44,785 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 21:55:44,785 INFO L413 NwaCegarLoop]: 4132 mSDtfsCounter, 4002 mSDsluCounter, 125 mSDsCounter, 0 mSdLazyCounter, 34 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 4002 SdHoareTripleChecker+Valid, 4257 SdHoareTripleChecker+Invalid, 36 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 34 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2023-12-21 21:55:44,785 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [4002 Valid, 4257 Invalid, 36 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 34 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2023-12-21 21:55:44,791 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 7105 states. [2023-12-21 21:55:45,004 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 7105 to 7089. [2023-12-21 21:55:45,011 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 7089 states, 6315 states have (on average 1.3939825811559778) internal successors, (8803), 6365 states have internal predecessors, (8803), 408 states have call successors, (408), 304 states have call predecessors, (408), 364 states have return successors, (486), 420 states have call predecessors, (486), 408 states have call successors, (486) [2023-12-21 21:55:45,021 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7089 states to 7089 states and 9697 transitions. [2023-12-21 21:55:45,023 INFO L78 Accepts]: Start accepts. Automaton has 7089 states and 9697 transitions. Word has length 174 [2023-12-21 21:55:45,023 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-21 21:55:45,023 INFO L495 AbstractCegarLoop]: Abstraction has 7089 states and 9697 transitions. [2023-12-21 21:55:45,023 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 38.333333333333336) internal successors, (115), 2 states have internal predecessors, (115), 2 states have call successors, (11), 2 states have call predecessors, (11), 2 states have return successors, (11), 2 states have call predecessors, (11), 2 states have call successors, (11) [2023-12-21 21:55:45,023 INFO L276 IsEmpty]: Start isEmpty. Operand 7089 states and 9697 transitions. [2023-12-21 21:55:45,034 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 178 [2023-12-21 21:55:45,034 INFO L187 NwaCegarLoop]: Found error trace [2023-12-21 21:55:45,034 INFO L195 NwaCegarLoop]: trace histogram [4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 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] [2023-12-21 21:55:45,048 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 21:55:45,238 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 21:55:45,239 INFO L420 AbstractCegarLoop]: === Iteration 20 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-21 21:55:45,239 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-21 21:55:45,239 INFO L85 PathProgramCache]: Analyzing trace with hash 580990493, now seen corresponding path program 1 times [2023-12-21 21:55:45,239 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-12-21 21:55:45,239 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1661663892] [2023-12-21 21:55:45,240 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-21 21:55:45,240 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 21:55:45,240 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2023-12-21 21:55:45,241 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 21:55:45,270 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 21:55:45,326 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 21:55:45,329 INFO L262 TraceCheckSpWp]: Trace formula consists of 337 conjuncts, 2 conjunts are in the unsatisfiable core [2023-12-21 21:55:45,332 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-21 21:55:45,349 INFO L134 CoverageAnalysis]: Checked inductivity of 146 backedges. 106 proven. 0 refuted. 0 times theorem prover too weak. 40 trivial. 0 not checked. [2023-12-21 21:55:45,349 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-12-21 21:55:45,349 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-12-21 21:55:45,349 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1661663892] [2023-12-21 21:55:45,349 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1661663892] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-21 21:55:45,349 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-21 21:55:45,349 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2023-12-21 21:55:45,350 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1767338176] [2023-12-21 21:55:45,350 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-21 21:55:45,350 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-12-21 21:55:45,350 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-12-21 21:55:45,350 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-12-21 21:55:45,350 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-12-21 21:55:45,351 INFO L87 Difference]: Start difference. First operand 7089 states and 9697 transitions. Second operand has 3 states, 3 states have (on average 40.333333333333336) internal successors, (121), 3 states have internal predecessors, (121), 3 states have call successors, (12), 3 states have call predecessors, (12), 2 states have return successors, (12), 2 states have call predecessors, (12), 3 states have call successors, (12) [2023-12-21 21:55:45,522 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-21 21:55:45,522 INFO L93 Difference]: Finished difference Result 8869 states and 11754 transitions. [2023-12-21 21:55:45,523 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-12-21 21:55:45,523 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 40.333333333333336) internal successors, (121), 3 states have internal predecessors, (121), 3 states have call successors, (12), 3 states have call predecessors, (12), 2 states have return successors, (12), 2 states have call predecessors, (12), 3 states have call successors, (12) Word has length 177 [2023-12-21 21:55:45,523 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-21 21:55:45,529 INFO L225 Difference]: With dead ends: 8869 [2023-12-21 21:55:45,529 INFO L226 Difference]: Without dead ends: 3707 [2023-12-21 21:55:45,535 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 176 GetRequests, 175 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 21:55:45,536 INFO L413 NwaCegarLoop]: 4162 mSDtfsCounter, 115 mSDsluCounter, 4078 mSDsCounter, 0 mSdLazyCounter, 40 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 115 SdHoareTripleChecker+Valid, 8240 SdHoareTripleChecker+Invalid, 41 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 40 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2023-12-21 21:55:45,537 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [115 Valid, 8240 Invalid, 41 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 40 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2023-12-21 21:55:45,542 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3707 states. [2023-12-21 21:55:45,767 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3707 to 3707. [2023-12-21 21:55:45,771 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3707 states, 3453 states have (on average 1.5734144222415292) internal successors, (5433), 3465 states have internal predecessors, (5433), 144 states have call successors, (144), 100 states have call predecessors, (144), 108 states have return successors, (152), 142 states have call predecessors, (152), 144 states have call successors, (152) [2023-12-21 21:55:45,775 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3707 states to 3707 states and 5729 transitions. [2023-12-21 21:55:45,775 INFO L78 Accepts]: Start accepts. Automaton has 3707 states and 5729 transitions. Word has length 177 [2023-12-21 21:55:45,775 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-21 21:55:45,775 INFO L495 AbstractCegarLoop]: Abstraction has 3707 states and 5729 transitions. [2023-12-21 21:55:45,775 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 40.333333333333336) internal successors, (121), 3 states have internal predecessors, (121), 3 states have call successors, (12), 3 states have call predecessors, (12), 2 states have return successors, (12), 2 states have call predecessors, (12), 3 states have call successors, (12) [2023-12-21 21:55:45,776 INFO L276 IsEmpty]: Start isEmpty. Operand 3707 states and 5729 transitions. [2023-12-21 21:55:45,778 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 179 [2023-12-21 21:55:45,778 INFO L187 NwaCegarLoop]: Found error trace [2023-12-21 21:55:45,778 INFO L195 NwaCegarLoop]: trace histogram [4, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 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] [2023-12-21 21:55:45,783 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (21)] Ended with exit code 0 [2023-12-21 21:55:45,982 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 21:55:45,983 INFO L420 AbstractCegarLoop]: === Iteration 21 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-21 21:55:45,983 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-21 21:55:45,983 INFO L85 PathProgramCache]: Analyzing trace with hash -1461755183, now seen corresponding path program 1 times [2023-12-21 21:55:45,983 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-12-21 21:55:45,983 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [716966078] [2023-12-21 21:55:45,983 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-21 21:55:45,983 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 21:55:45,984 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2023-12-21 21:55:45,984 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 21:55:46,013 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (22)] Waiting until timeout for monitored process [2023-12-21 21:55:46,064 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 21:55:46,068 INFO L262 TraceCheckSpWp]: Trace formula consists of 340 conjuncts, 2 conjunts are in the unsatisfiable core [2023-12-21 21:55:46,070 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-21 21:55:46,095 INFO L134 CoverageAnalysis]: Checked inductivity of 146 backedges. 76 proven. 0 refuted. 0 times theorem prover too weak. 70 trivial. 0 not checked. [2023-12-21 21:55:46,095 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-12-21 21:55:46,096 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-12-21 21:55:46,096 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [716966078] [2023-12-21 21:55:46,096 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [716966078] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-21 21:55:46,096 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-21 21:55:46,096 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2023-12-21 21:55:46,096 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1406898151] [2023-12-21 21:55:46,096 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-21 21:55:46,096 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-12-21 21:55:46,096 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-12-21 21:55:46,097 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-12-21 21:55:46,097 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-12-21 21:55:46,098 INFO L87 Difference]: Start difference. First operand 3707 states and 5729 transitions. Second operand has 3 states, 3 states have (on average 36.666666666666664) internal successors, (110), 3 states have internal predecessors, (110), 3 states have call successors, (11), 3 states have call predecessors, (11), 2 states have return successors, (11), 2 states have call predecessors, (11), 3 states have call successors, (11) [2023-12-21 21:55:46,212 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-21 21:55:46,213 INFO L93 Difference]: Finished difference Result 4725 states and 6897 transitions. [2023-12-21 21:55:46,213 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-12-21 21:55:46,213 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 36.666666666666664) internal successors, (110), 3 states have internal predecessors, (110), 3 states have call successors, (11), 3 states have call predecessors, (11), 2 states have return successors, (11), 2 states have call predecessors, (11), 3 states have call successors, (11) Word has length 178 [2023-12-21 21:55:46,213 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-21 21:55:46,218 INFO L225 Difference]: With dead ends: 4725 [2023-12-21 21:55:46,219 INFO L226 Difference]: Without dead ends: 3707 [2023-12-21 21:55:46,221 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 177 GetRequests, 176 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 21:55:46,221 INFO L413 NwaCegarLoop]: 4194 mSDtfsCounter, 122 mSDsluCounter, 4071 mSDsCounter, 0 mSdLazyCounter, 39 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 122 SdHoareTripleChecker+Valid, 8265 SdHoareTripleChecker+Invalid, 40 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 39 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2023-12-21 21:55:46,221 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [122 Valid, 8265 Invalid, 40 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 39 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2023-12-21 21:55:46,224 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3707 states. [2023-12-21 21:55:46,313 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3707 to 3707. [2023-12-21 21:55:46,318 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3707 states, 3453 states have (on average 1.568780770344628) internal successors, (5417), 3465 states have internal predecessors, (5417), 144 states have call successors, (144), 100 states have call predecessors, (144), 108 states have return successors, (152), 142 states have call predecessors, (152), 144 states have call successors, (152) [2023-12-21 21:55:46,323 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3707 states to 3707 states and 5713 transitions. [2023-12-21 21:55:46,323 INFO L78 Accepts]: Start accepts. Automaton has 3707 states and 5713 transitions. Word has length 178 [2023-12-21 21:55:46,324 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-21 21:55:46,324 INFO L495 AbstractCegarLoop]: Abstraction has 3707 states and 5713 transitions. [2023-12-21 21:55:46,324 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 36.666666666666664) internal successors, (110), 3 states have internal predecessors, (110), 3 states have call successors, (11), 3 states have call predecessors, (11), 2 states have return successors, (11), 2 states have call predecessors, (11), 3 states have call successors, (11) [2023-12-21 21:55:46,324 INFO L276 IsEmpty]: Start isEmpty. Operand 3707 states and 5713 transitions. [2023-12-21 21:55:46,326 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 181 [2023-12-21 21:55:46,327 INFO L187 NwaCegarLoop]: Found error trace [2023-12-21 21:55:46,327 INFO L195 NwaCegarLoop]: trace histogram [4, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 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] [2023-12-21 21:55:46,346 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 21:55:46,531 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 21:55:46,531 INFO L420 AbstractCegarLoop]: === Iteration 22 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-21 21:55:46,531 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-21 21:55:46,532 INFO L85 PathProgramCache]: Analyzing trace with hash 757469373, now seen corresponding path program 1 times [2023-12-21 21:55:46,532 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-12-21 21:55:46,532 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [639554108] [2023-12-21 21:55:46,532 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-21 21:55:46,532 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 21:55:46,532 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2023-12-21 21:55:46,549 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 21:55:46,591 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 21:55:46,672 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 21:55:46,675 INFO L262 TraceCheckSpWp]: Trace formula consists of 342 conjuncts, 2 conjunts are in the unsatisfiable core [2023-12-21 21:55:46,677 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-21 21:55:46,714 INFO L134 CoverageAnalysis]: Checked inductivity of 149 backedges. 114 proven. 0 refuted. 0 times theorem prover too weak. 35 trivial. 0 not checked. [2023-12-21 21:55:46,714 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-12-21 21:55:46,714 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-12-21 21:55:46,714 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [639554108] [2023-12-21 21:55:46,714 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [639554108] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-21 21:55:46,714 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-21 21:55:46,714 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2023-12-21 21:55:46,714 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1347920119] [2023-12-21 21:55:46,714 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-21 21:55:46,715 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-12-21 21:55:46,715 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-12-21 21:55:46,715 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-12-21 21:55:46,716 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-12-21 21:55:46,716 INFO L87 Difference]: Start difference. First operand 3707 states and 5713 transitions. Second operand has 3 states, 3 states have (on average 43.666666666666664) internal successors, (131), 3 states have internal predecessors, (131), 3 states have call successors, (11), 3 states have call predecessors, (11), 3 states have return successors, (12), 3 states have call predecessors, (12), 3 states have call successors, (12) [2023-12-21 21:55:46,870 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-21 21:55:46,871 INFO L93 Difference]: Finished difference Result 5327 states and 7560 transitions. [2023-12-21 21:55:46,872 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-12-21 21:55:46,872 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 43.666666666666664) internal successors, (131), 3 states have internal predecessors, (131), 3 states have call successors, (11), 3 states have call predecessors, (11), 3 states have return successors, (12), 3 states have call predecessors, (12), 3 states have call successors, (12) Word has length 180 [2023-12-21 21:55:46,872 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-21 21:55:46,877 INFO L225 Difference]: With dead ends: 5327 [2023-12-21 21:55:46,877 INFO L226 Difference]: Without dead ends: 3913 [2023-12-21 21:55:46,880 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 179 GetRequests, 178 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 21:55:46,881 INFO L413 NwaCegarLoop]: 4102 mSDtfsCounter, 4071 mSDsluCounter, 119 mSDsCounter, 0 mSdLazyCounter, 35 mSolverCounterSat, 4 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 4071 SdHoareTripleChecker+Valid, 4221 SdHoareTripleChecker+Invalid, 39 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 4 IncrementalHoareTripleChecker+Valid, 35 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2023-12-21 21:55:46,881 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [4071 Valid, 4221 Invalid, 39 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [4 Valid, 35 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2023-12-21 21:55:46,884 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3913 states. [2023-12-21 21:55:46,997 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3913 to 3911. [2023-12-21 21:55:47,001 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3911 states, 3623 states have (on average 1.5440242892630416) internal successors, (5594), 3638 states have internal predecessors, (5594), 163 states have call successors, (163), 114 states have call predecessors, (163), 123 states have return successors, (179), 159 states have call predecessors, (179), 163 states have call successors, (179) [2023-12-21 21:55:47,005 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3911 states to 3911 states and 5936 transitions. [2023-12-21 21:55:47,006 INFO L78 Accepts]: Start accepts. Automaton has 3911 states and 5936 transitions. Word has length 180 [2023-12-21 21:55:47,006 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-21 21:55:47,006 INFO L495 AbstractCegarLoop]: Abstraction has 3911 states and 5936 transitions. [2023-12-21 21:55:47,006 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 43.666666666666664) internal successors, (131), 3 states have internal predecessors, (131), 3 states have call successors, (11), 3 states have call predecessors, (11), 3 states have return successors, (12), 3 states have call predecessors, (12), 3 states have call successors, (12) [2023-12-21 21:55:47,006 INFO L276 IsEmpty]: Start isEmpty. Operand 3911 states and 5936 transitions. [2023-12-21 21:55:47,009 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 182 [2023-12-21 21:55:47,009 INFO L187 NwaCegarLoop]: Found error trace [2023-12-21 21:55:47,009 INFO L195 NwaCegarLoop]: trace histogram [4, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 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] [2023-12-21 21:55:47,013 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 21:55:47,213 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 21:55:47,213 INFO L420 AbstractCegarLoop]: === Iteration 23 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-21 21:55:47,214 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-21 21:55:47,214 INFO L85 PathProgramCache]: Analyzing trace with hash -853678166, now seen corresponding path program 1 times [2023-12-21 21:55:47,214 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-12-21 21:55:47,214 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1106216816] [2023-12-21 21:55:47,214 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-21 21:55:47,214 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 21:55:47,215 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2023-12-21 21:55:47,215 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 21:55:47,240 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 21:55:47,307 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 21:55:47,310 INFO L262 TraceCheckSpWp]: Trace formula consists of 343 conjuncts, 2 conjunts are in the unsatisfiable core [2023-12-21 21:55:47,313 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-21 21:55:47,326 INFO L134 CoverageAnalysis]: Checked inductivity of 150 backedges. 108 proven. 0 refuted. 0 times theorem prover too weak. 42 trivial. 0 not checked. [2023-12-21 21:55:47,326 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-12-21 21:55:47,327 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-12-21 21:55:47,327 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1106216816] [2023-12-21 21:55:47,327 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1106216816] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-21 21:55:47,327 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-21 21:55:47,327 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2023-12-21 21:55:47,327 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1515217444] [2023-12-21 21:55:47,327 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-21 21:55:47,327 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-12-21 21:55:47,327 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-12-21 21:55:47,328 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-12-21 21:55:47,328 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-12-21 21:55:47,328 INFO L87 Difference]: Start difference. First operand 3911 states and 5936 transitions. Second operand has 3 states, 3 states have (on average 41.666666666666664) internal successors, (125), 3 states have internal predecessors, (125), 3 states have call successors, (12), 3 states have call predecessors, (12), 2 states have return successors, (12), 2 states have call predecessors, (12), 3 states have call successors, (12) [2023-12-21 21:55:47,455 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-21 21:55:47,455 INFO L93 Difference]: Finished difference Result 5353 states and 7560 transitions. [2023-12-21 21:55:47,455 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-12-21 21:55:47,456 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 41.666666666666664) internal successors, (125), 3 states have internal predecessors, (125), 3 states have call successors, (12), 3 states have call predecessors, (12), 2 states have return successors, (12), 2 states have call predecessors, (12), 3 states have call successors, (12) Word has length 181 [2023-12-21 21:55:47,456 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-21 21:55:47,461 INFO L225 Difference]: With dead ends: 5353 [2023-12-21 21:55:47,461 INFO L226 Difference]: Without dead ends: 3911 [2023-12-21 21:55:47,464 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 180 GetRequests, 179 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 21:55:47,464 INFO L413 NwaCegarLoop]: 4146 mSDtfsCounter, 126 mSDsluCounter, 4055 mSDsCounter, 0 mSdLazyCounter, 35 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 126 SdHoareTripleChecker+Valid, 8201 SdHoareTripleChecker+Invalid, 36 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 35 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2023-12-21 21:55:47,464 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [126 Valid, 8201 Invalid, 36 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 35 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2023-12-21 21:55:47,467 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3911 states. [2023-12-21 21:55:47,568 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3911 to 3911. [2023-12-21 21:55:47,572 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3911 states, 3623 states have (on average 1.5390560309136074) internal successors, (5576), 3638 states have internal predecessors, (5576), 163 states have call successors, (163), 114 states have call predecessors, (163), 123 states have return successors, (179), 159 states have call predecessors, (179), 163 states have call successors, (179) [2023-12-21 21:55:47,576 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3911 states to 3911 states and 5918 transitions. [2023-12-21 21:55:47,576 INFO L78 Accepts]: Start accepts. Automaton has 3911 states and 5918 transitions. Word has length 181 [2023-12-21 21:55:47,576 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-21 21:55:47,577 INFO L495 AbstractCegarLoop]: Abstraction has 3911 states and 5918 transitions. [2023-12-21 21:55:47,577 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 41.666666666666664) internal successors, (125), 3 states have internal predecessors, (125), 3 states have call successors, (12), 3 states have call predecessors, (12), 2 states have return successors, (12), 2 states have call predecessors, (12), 3 states have call successors, (12) [2023-12-21 21:55:47,577 INFO L276 IsEmpty]: Start isEmpty. Operand 3911 states and 5918 transitions. [2023-12-21 21:55:47,579 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 184 [2023-12-21 21:55:47,579 INFO L187 NwaCegarLoop]: Found error trace [2023-12-21 21:55:47,579 INFO L195 NwaCegarLoop]: trace histogram [4, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 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] [2023-12-21 21:55:47,586 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 (24)] Forceful destruction successful, exit code 0 [2023-12-21 21:55:47,783 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 21:55:47,784 INFO L420 AbstractCegarLoop]: === Iteration 24 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-21 21:55:47,784 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-21 21:55:47,784 INFO L85 PathProgramCache]: Analyzing trace with hash 944244350, now seen corresponding path program 1 times [2023-12-21 21:55:47,784 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-12-21 21:55:47,784 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1574437997] [2023-12-21 21:55:47,785 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-21 21:55:47,785 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 21:55:47,785 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2023-12-21 21:55:47,786 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 21:55:47,808 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (25)] Waiting until timeout for monitored process [2023-12-21 21:55:47,883 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 21:55:47,886 INFO L262 TraceCheckSpWp]: Trace formula consists of 345 conjuncts, 4 conjunts are in the unsatisfiable core [2023-12-21 21:55:47,888 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-21 21:55:48,138 INFO L134 CoverageAnalysis]: Checked inductivity of 153 backedges. 82 proven. 61 refuted. 0 times theorem prover too weak. 10 trivial. 0 not checked. [2023-12-21 21:55:48,139 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-12-21 21:55:48,246 INFO L134 CoverageAnalysis]: Checked inductivity of 153 backedges. 26 proven. 0 refuted. 0 times theorem prover too weak. 127 trivial. 0 not checked. [2023-12-21 21:55:48,246 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-12-21 21:55:48,246 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1574437997] [2023-12-21 21:55:48,246 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1574437997] provided 1 perfect and 1 imperfect interpolant sequences [2023-12-21 21:55:48,246 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2023-12-21 21:55:48,247 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [5] total 5 [2023-12-21 21:55:48,247 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1235041535] [2023-12-21 21:55:48,247 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-21 21:55:48,247 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2023-12-21 21:55:48,247 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-12-21 21:55:48,248 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2023-12-21 21:55:48,248 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2023-12-21 21:55:48,248 INFO L87 Difference]: Start difference. First operand 3911 states and 5918 transitions. Second operand has 5 states, 5 states have (on average 20.8) internal successors, (104), 5 states have internal predecessors, (104), 4 states have call successors, (10), 1 states have call predecessors, (10), 1 states have return successors, (10), 4 states have call predecessors, (10), 4 states have call successors, (10) [2023-12-21 21:55:48,790 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-21 21:55:48,791 INFO L93 Difference]: Finished difference Result 3913 states and 5920 transitions. [2023-12-21 21:55:48,791 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2023-12-21 21:55:48,792 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 20.8) internal successors, (104), 5 states have internal predecessors, (104), 4 states have call successors, (10), 1 states have call predecessors, (10), 1 states have return successors, (10), 4 states have call predecessors, (10), 4 states have call successors, (10) Word has length 183 [2023-12-21 21:55:48,792 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-21 21:55:48,794 INFO L225 Difference]: With dead ends: 3913 [2023-12-21 21:55:48,794 INFO L226 Difference]: Without dead ends: 2122 [2023-12-21 21:55:48,796 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 364 GetRequests, 361 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2023-12-21 21:55:48,796 INFO L413 NwaCegarLoop]: 4264 mSDtfsCounter, 4263 mSDsluCounter, 8392 mSDsCounter, 0 mSdLazyCounter, 232 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 4263 SdHoareTripleChecker+Valid, 12656 SdHoareTripleChecker+Invalid, 233 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 232 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2023-12-21 21:55:48,796 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [4263 Valid, 12656 Invalid, 233 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 232 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2023-12-21 21:55:48,798 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2122 states. [2023-12-21 21:55:48,813 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2122 to 2122. [2023-12-21 21:55:48,815 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2122 states, 2121 states have (on average 1.866100895803866) internal successors, (3958), 2121 states have internal predecessors, (3958), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-21 21:55:48,818 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2122 states to 2122 states and 3958 transitions. [2023-12-21 21:55:48,818 INFO L78 Accepts]: Start accepts. Automaton has 2122 states and 3958 transitions. Word has length 183 [2023-12-21 21:55:48,819 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-21 21:55:48,819 INFO L495 AbstractCegarLoop]: Abstraction has 2122 states and 3958 transitions. [2023-12-21 21:55:48,819 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 20.8) internal successors, (104), 5 states have internal predecessors, (104), 4 states have call successors, (10), 1 states have call predecessors, (10), 1 states have return successors, (10), 4 states have call predecessors, (10), 4 states have call successors, (10) [2023-12-21 21:55:48,819 INFO L276 IsEmpty]: Start isEmpty. Operand 2122 states and 3958 transitions. [2023-12-21 21:55:48,865 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 1654 [2023-12-21 21:55:48,866 INFO L187 NwaCegarLoop]: Found error trace [2023-12-21 21:55:48,866 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 21:55:48,886 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 21:55:49,070 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 21:55:49,071 INFO L420 AbstractCegarLoop]: === Iteration 25 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-21 21:55:49,071 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-21 21:55:49,072 INFO L85 PathProgramCache]: Analyzing trace with hash 2109015020, now seen corresponding path program 1 times [2023-12-21 21:55:49,081 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-12-21 21:55:49,081 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1006977122] [2023-12-21 21:55:49,081 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-21 21:55:49,082 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 21:55:49,082 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2023-12-21 21:55:49,101 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 21:55:49,114 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 21:55:49,603 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 21:55:49,610 INFO L262 TraceCheckSpWp]: Trace formula consists of 1720 conjuncts, 31 conjunts are in the unsatisfiable core [2023-12-21 21:55:49,632 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-21 21:57:26,942 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-12-21 21:57:26,942 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-12-21 21:57:26,942 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-12-21 21:57:26,942 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1006977122] [2023-12-21 21:57:26,943 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1006977122] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-21 21:57:26,943 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-21 21:57:26,943 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [16] imperfect sequences [] total 16 [2023-12-21 21:57:26,943 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1759663371] [2023-12-21 21:57:26,943 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-21 21:57:26,944 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 17 states [2023-12-21 21:57:26,944 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-12-21 21:57:26,945 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 17 interpolants. [2023-12-21 21:57:26,946 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=50, Invalid=222, Unknown=0, NotChecked=0, Total=272 [2023-12-21 21:57:26,946 INFO L87 Difference]: Start difference. First operand 2122 states and 3958 transitions. Second operand has 17 states, 17 states have (on average 97.23529411764706) internal successors, (1653), 16 states have internal predecessors, (1653), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-21 21:58:09,284 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-21 21:58:09,285 INFO L93 Difference]: Finished difference Result 9352 states and 17905 transitions. [2023-12-21 21:58:09,285 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 30 states. [2023-12-21 21:58:09,285 INFO L78 Accepts]: Start accepts. Automaton has has 17 states, 17 states have (on average 97.23529411764706) internal successors, (1653), 16 states have internal predecessors, (1653), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 1653 [2023-12-21 21:58:09,287 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-21 21:58:09,294 INFO L225 Difference]: With dead ends: 9352 [2023-12-21 21:58:09,294 INFO L226 Difference]: Without dead ends: 7232 [2023-12-21 21:58:09,296 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 1676 GetRequests, 1637 SyntacticMatches, 0 SemanticMatches, 39 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 242 ImplicationChecksByTransitivity, 4.2s TimeCoverageRelationStatistics Valid=451, Invalid=1189, Unknown=0, NotChecked=0, Total=1640 [2023-12-21 21:58:09,297 INFO L413 NwaCegarLoop]: 2017 mSDtfsCounter, 9183 mSDsluCounter, 871 mSDsCounter, 0 mSdLazyCounter, 42696 mSolverCounterSat, 2689 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 33.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 9183 SdHoareTripleChecker+Valid, 2888 SdHoareTripleChecker+Invalid, 45385 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 2689 IncrementalHoareTripleChecker+Valid, 42696 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 38.1s IncrementalHoareTripleChecker+Time [2023-12-21 21:58:09,297 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [9183 Valid, 2888 Invalid, 45385 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [2689 Valid, 42696 Invalid, 0 Unknown, 0 Unchecked, 38.1s Time] [2023-12-21 21:58:09,300 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 7232 states. [2023-12-21 21:58:09,348 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 7232 to 7217. [2023-12-21 21:58:09,352 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 7217 states, 7216 states have (on average 1.4871119733924612) internal successors, (10731), 7216 states have internal predecessors, (10731), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-21 21:58:09,359 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7217 states to 7217 states and 10731 transitions. [2023-12-21 21:58:09,360 INFO L78 Accepts]: Start accepts. Automaton has 7217 states and 10731 transitions. Word has length 1653 [2023-12-21 21:58:09,361 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-21 21:58:09,361 INFO L495 AbstractCegarLoop]: Abstraction has 7217 states and 10731 transitions. [2023-12-21 21:58:09,361 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 17 states, 17 states have (on average 97.23529411764706) internal successors, (1653), 16 states have internal predecessors, (1653), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-21 21:58:09,361 INFO L276 IsEmpty]: Start isEmpty. Operand 7217 states and 10731 transitions. [2023-12-21 21:58:09,387 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 1687 [2023-12-21 21:58:09,387 INFO L187 NwaCegarLoop]: Found error trace [2023-12-21 21:58:09,388 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 21:58:09,393 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (26)] Forceful destruction successful, exit code 0 [2023-12-21 21:58:09,593 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 21:58:09,593 INFO L420 AbstractCegarLoop]: === Iteration 26 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-21 21:58:09,593 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-21 21:58:09,594 INFO L85 PathProgramCache]: Analyzing trace with hash -471329657, now seen corresponding path program 1 times [2023-12-21 21:58:09,601 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-12-21 21:58:09,601 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1617083321] [2023-12-21 21:58:09,601 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-21 21:58:09,602 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 21:58:09,602 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2023-12-21 21:58:09,603 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 21:58:09,636 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 21:58:10,083 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 21:58:10,092 INFO L262 TraceCheckSpWp]: Trace formula consists of 1767 conjuncts, 2 conjunts are in the unsatisfiable core [2023-12-21 21:58:10,108 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-21 21:58:10,156 INFO L134 CoverageAnalysis]: Checked inductivity of 32 backedges. 32 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-12-21 21:58:10,157 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-12-21 21:58:10,157 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-12-21 21:58:10,157 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1617083321] [2023-12-21 21:58:10,157 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1617083321] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-21 21:58:10,157 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-21 21:58:10,157 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2023-12-21 21:58:10,157 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [815314710] [2023-12-21 21:58:10,157 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-21 21:58:10,159 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-12-21 21:58:10,159 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-12-21 21:58:10,160 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-12-21 21:58:10,160 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-12-21 21:58:10,160 INFO L87 Difference]: Start difference. First operand 7217 states and 10731 transitions. Second operand has 3 states, 3 states have (on average 562.0) internal successors, (1686), 2 states have internal predecessors, (1686), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-21 21:58:17,342 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-21 21:58:17,342 INFO L93 Difference]: Finished difference Result 17932 states and 28172 transitions. [2023-12-21 21:58:17,342 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-12-21 21:58:17,343 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 562.0) internal successors, (1686), 2 states have internal predecessors, (1686), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 1686 [2023-12-21 21:58:17,343 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-21 21:58:17,357 INFO L225 Difference]: With dead ends: 17932 [2023-12-21 21:58:17,357 INFO L226 Difference]: Without dead ends: 12343 [2023-12-21 21:58:17,365 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 1685 GetRequests, 1684 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 21:58:17,366 INFO L413 NwaCegarLoop]: 1558 mSDtfsCounter, 2540 mSDsluCounter, 195 mSDsCounter, 0 mSdLazyCounter, 4775 mSolverCounterSat, 2066 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 5.8s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2540 SdHoareTripleChecker+Valid, 1753 SdHoareTripleChecker+Invalid, 6841 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2066 IncrementalHoareTripleChecker+Valid, 4775 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 7.0s IncrementalHoareTripleChecker+Time [2023-12-21 21:58:17,367 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [2540 Valid, 1753 Invalid, 6841 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2066 Valid, 4775 Invalid, 0 Unknown, 0 Unchecked, 7.0s Time] [2023-12-21 21:58:17,389 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 12343 states. [2023-12-21 21:58:17,575 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 12343 to 12342. [2023-12-21 21:58:17,583 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 12342 states, 12341 states have (on average 1.394781622234827) internal successors, (17213), 12341 states have internal predecessors, (17213), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-21 21:58:17,597 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 12342 states to 12342 states and 17213 transitions. [2023-12-21 21:58:17,598 INFO L78 Accepts]: Start accepts. Automaton has 12342 states and 17213 transitions. Word has length 1686 [2023-12-21 21:58:17,599 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-21 21:58:17,599 INFO L495 AbstractCegarLoop]: Abstraction has 12342 states and 17213 transitions. [2023-12-21 21:58:17,600 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 562.0) internal successors, (1686), 2 states have internal predecessors, (1686), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-21 21:58:17,600 INFO L276 IsEmpty]: Start isEmpty. Operand 12342 states and 17213 transitions. [2023-12-21 21:58:17,632 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 1763 [2023-12-21 21:58:17,632 INFO L187 NwaCegarLoop]: Found error trace [2023-12-21 21:58:17,633 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, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 21:58:17,640 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 21:58:17,838 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 21:58:17,838 INFO L420 AbstractCegarLoop]: === Iteration 27 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-21 21:58:17,838 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-21 21:58:17,839 INFO L85 PathProgramCache]: Analyzing trace with hash -826064835, now seen corresponding path program 1 times [2023-12-21 21:58:17,847 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-12-21 21:58:17,847 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [253304080] [2023-12-21 21:58:17,847 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-21 21:58:17,847 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 21:58:17,847 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2023-12-21 21:58:17,848 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 21:58:17,880 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 21:58:18,322 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 21:58:18,331 INFO L262 TraceCheckSpWp]: Trace formula consists of 1842 conjuncts, 29 conjunts are in the unsatisfiable core [2023-12-21 21:58:18,350 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-21 21:59:27,611 INFO L134 CoverageAnalysis]: Checked inductivity of 108 backedges. 108 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-12-21 21:59:27,611 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-12-21 21:59:27,611 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-12-21 21:59:27,611 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [253304080] [2023-12-21 21:59:27,613 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [253304080] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-21 21:59:27,613 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-21 21:59:27,613 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [16] imperfect sequences [] total 16 [2023-12-21 21:59:27,614 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [278082600] [2023-12-21 21:59:27,614 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-21 21:59:27,621 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 16 states [2023-12-21 21:59:27,621 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-12-21 21:59:27,623 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 16 interpolants. [2023-12-21 21:59:27,636 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=49, Invalid=191, Unknown=0, NotChecked=0, Total=240 [2023-12-21 21:59:27,637 INFO L87 Difference]: Start difference. First operand 12342 states and 17213 transitions. Second operand has 16 states, 16 states have (on average 110.125) internal successors, (1762), 16 states have internal predecessors, (1762), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-21 22:00:17,964 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-21 22:00:17,964 INFO L93 Difference]: Finished difference Result 29676 states and 43025 transitions. [2023-12-21 22:00:17,964 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 27 states. [2023-12-21 22:00:17,965 INFO L78 Accepts]: Start accepts. Automaton has has 16 states, 16 states have (on average 110.125) internal successors, (1762), 16 states have internal predecessors, (1762), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 1762 [2023-12-21 22:00:17,966 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-21 22:00:17,982 INFO L225 Difference]: With dead ends: 29676 [2023-12-21 22:00:17,982 INFO L226 Difference]: Without dead ends: 13844 [2023-12-21 22:00:17,992 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 1781 GetRequests, 1749 SyntacticMatches, 0 SemanticMatches, 32 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 145 ImplicationChecksByTransitivity, 2.4s TimeCoverageRelationStatistics Valid=341, Invalid=781, Unknown=0, NotChecked=0, Total=1122 [2023-12-21 22:00:17,992 INFO L413 NwaCegarLoop]: 3979 mSDtfsCounter, 8335 mSDsluCounter, 2705 mSDsCounter, 0 mSdLazyCounter, 65482 mSolverCounterSat, 2330 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 41.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 8335 SdHoareTripleChecker+Valid, 6684 SdHoareTripleChecker+Invalid, 67812 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.2s SdHoareTripleChecker+Time, 2330 IncrementalHoareTripleChecker+Valid, 65482 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 47.6s IncrementalHoareTripleChecker+Time [2023-12-21 22:00:17,992 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [8335 Valid, 6684 Invalid, 67812 Unknown, 0 Unchecked, 0.2s Time], IncrementalHoareTripleChecker [2330 Valid, 65482 Invalid, 0 Unknown, 0 Unchecked, 47.6s Time] [2023-12-21 22:00:18,001 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 13844 states. [2023-12-21 22:00:18,091 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 13844 to 13841. [2023-12-21 22:00:18,101 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 13841 states, 13840 states have (on average 1.350650289017341) internal successors, (18693), 13840 states have internal predecessors, (18693), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-21 22:00:18,118 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 13841 states to 13841 states and 18693 transitions. [2023-12-21 22:00:18,118 INFO L78 Accepts]: Start accepts. Automaton has 13841 states and 18693 transitions. Word has length 1762 [2023-12-21 22:00:18,119 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-21 22:00:18,119 INFO L495 AbstractCegarLoop]: Abstraction has 13841 states and 18693 transitions. [2023-12-21 22:00:18,119 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 16 states, 16 states have (on average 110.125) internal successors, (1762), 16 states have internal predecessors, (1762), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-21 22:00:18,119 INFO L276 IsEmpty]: Start isEmpty. Operand 13841 states and 18693 transitions. [2023-12-21 22:00:18,154 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 1803 [2023-12-21 22:00:18,154 INFO L187 NwaCegarLoop]: Found error trace [2023-12-21 22:00:18,156 INFO L195 NwaCegarLoop]: trace histogram [4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 22:00:18,162 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (28)] Forceful destruction successful, exit code 0 [2023-12-21 22:00:18,360 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 28 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2023-12-21 22:00:18,361 INFO L420 AbstractCegarLoop]: === Iteration 28 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-21 22:00:18,361 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-21 22:00:18,361 INFO L85 PathProgramCache]: Analyzing trace with hash -1510840214, now seen corresponding path program 1 times [2023-12-21 22:00:18,369 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-12-21 22:00:18,369 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [2034034123] [2023-12-21 22:00:18,369 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-21 22:00:18,369 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 22:00:18,369 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2023-12-21 22:00:18,370 INFO L229 MonitoredProcess]: Starting monitored process 29 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2023-12-21 22:00:18,383 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (29)] Waiting until timeout for monitored process [2023-12-21 22:00:18,919 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 22:00:18,926 INFO L262 TraceCheckSpWp]: Trace formula consists of 1911 conjuncts, 2 conjunts are in the unsatisfiable core [2023-12-21 22:00:18,937 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-21 22:00:18,959 INFO L134 CoverageAnalysis]: Checked inductivity of 190 backedges. 155 proven. 0 refuted. 0 times theorem prover too weak. 35 trivial. 0 not checked. [2023-12-21 22:00:18,959 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-12-21 22:00:18,960 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-12-21 22:00:18,960 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [2034034123] [2023-12-21 22:00:18,960 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [2034034123] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-21 22:00:18,960 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-21 22:00:18,960 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2023-12-21 22:00:18,960 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2002500343] [2023-12-21 22:00:18,960 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-21 22:00:18,961 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-12-21 22:00:18,961 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-12-21 22:00:18,963 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-12-21 22:00:18,963 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-12-21 22:00:18,963 INFO L87 Difference]: Start difference. First operand 13841 states and 18693 transitions. Second operand has 3 states, 3 states have (on average 589.3333333333334) internal successors, (1768), 3 states have internal predecessors, (1768), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-21 22:00:26,546 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-21 22:00:26,547 INFO L93 Difference]: Finished difference Result 31194 states and 43857 transitions. [2023-12-21 22:00:26,547 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-12-21 22:00:26,548 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 589.3333333333334) internal successors, (1768), 3 states have internal predecessors, (1768), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 1802 [2023-12-21 22:00:26,548 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-21 22:00:26,572 INFO L225 Difference]: With dead ends: 31194 [2023-12-21 22:00:26,572 INFO L226 Difference]: Without dead ends: 18981 [2023-12-21 22:00:26,601 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 1801 GetRequests, 1800 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 22:00:26,602 INFO L413 NwaCegarLoop]: 2078 mSDtfsCounter, 1835 mSDsluCounter, 243 mSDsCounter, 0 mSdLazyCounter, 5643 mSolverCounterSat, 1523 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 6.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1835 SdHoareTripleChecker+Valid, 2321 SdHoareTripleChecker+Invalid, 7166 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1523 IncrementalHoareTripleChecker+Valid, 5643 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 7.4s IncrementalHoareTripleChecker+Time [2023-12-21 22:00:26,602 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1835 Valid, 2321 Invalid, 7166 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1523 Valid, 5643 Invalid, 0 Unknown, 0 Unchecked, 7.4s Time] [2023-12-21 22:00:26,621 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 18981 states. [2023-12-21 22:00:26,761 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 18981 to 18970. [2023-12-21 22:00:26,775 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 18970 states, 18969 states have (on average 1.2958511255205862) internal successors, (24581), 18969 states have internal predecessors, (24581), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-21 22:00:26,796 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 18970 states to 18970 states and 24581 transitions. [2023-12-21 22:00:26,796 INFO L78 Accepts]: Start accepts. Automaton has 18970 states and 24581 transitions. Word has length 1802 [2023-12-21 22:00:26,797 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-21 22:00:26,797 INFO L495 AbstractCegarLoop]: Abstraction has 18970 states and 24581 transitions. [2023-12-21 22:00:26,797 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 589.3333333333334) internal successors, (1768), 3 states have internal predecessors, (1768), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-21 22:00:26,797 INFO L276 IsEmpty]: Start isEmpty. Operand 18970 states and 24581 transitions. [2023-12-21 22:00:26,837 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 1836 [2023-12-21 22:00:26,838 INFO L187 NwaCegarLoop]: Found error trace [2023-12-21 22:00:26,838 INFO L195 NwaCegarLoop]: trace histogram [4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 22:00:26,843 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (29)] Ended with exit code 0 [2023-12-21 22:00:27,043 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 29 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2023-12-21 22:00:27,044 INFO L420 AbstractCegarLoop]: === Iteration 29 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-21 22:00:27,044 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-21 22:00:27,044 INFO L85 PathProgramCache]: Analyzing trace with hash 934211415, now seen corresponding path program 1 times [2023-12-21 22:00:27,052 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-12-21 22:00:27,052 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1850249167] [2023-12-21 22:00:27,052 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-21 22:00:27,052 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 22:00:27,052 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2023-12-21 22:00:27,054 INFO L229 MonitoredProcess]: Starting monitored process 30 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2023-12-21 22:00:27,088 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (30)] Waiting until timeout for monitored process [2023-12-21 22:00:27,588 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 22:00:27,597 INFO L262 TraceCheckSpWp]: Trace formula consists of 1945 conjuncts, 2 conjunts are in the unsatisfiable core [2023-12-21 22:00:27,721 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-21 22:00:27,773 INFO L134 CoverageAnalysis]: Checked inductivity of 288 backedges. 253 proven. 0 refuted. 0 times theorem prover too weak. 35 trivial. 0 not checked. [2023-12-21 22:00:27,773 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-12-21 22:00:27,773 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-12-21 22:00:27,773 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1850249167] [2023-12-21 22:00:27,773 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1850249167] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-21 22:00:27,773 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-21 22:00:27,773 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2023-12-21 22:00:27,774 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1992149275] [2023-12-21 22:00:27,774 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-21 22:00:27,775 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-12-21 22:00:27,775 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-12-21 22:00:27,777 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-12-21 22:00:27,777 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-12-21 22:00:27,777 INFO L87 Difference]: Start difference. First operand 18970 states and 24581 transitions. Second operand has 3 states, 3 states have (on average 600.3333333333334) internal successors, (1801), 3 states have internal predecessors, (1801), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-21 22:00:34,908 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-21 22:00:34,909 INFO L93 Difference]: Finished difference Result 46530 states and 61468 transitions. [2023-12-21 22:00:34,909 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-12-21 22:00:34,910 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 600.3333333333334) internal successors, (1801), 3 states have internal predecessors, (1801), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 1835 [2023-12-21 22:00:34,910 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-21 22:00:34,947 INFO L225 Difference]: With dead ends: 46530 [2023-12-21 22:00:34,947 INFO L226 Difference]: Without dead ends: 29188 [2023-12-21 22:00:34,964 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 1834 GetRequests, 1833 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 22:00:34,965 INFO L413 NwaCegarLoop]: 3384 mSDtfsCounter, 1974 mSDsluCounter, 256 mSDsCounter, 0 mSdLazyCounter, 5403 mSolverCounterSat, 1507 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 5.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1974 SdHoareTripleChecker+Valid, 3640 SdHoareTripleChecker+Invalid, 6910 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1507 IncrementalHoareTripleChecker+Valid, 5403 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 6.9s IncrementalHoareTripleChecker+Time [2023-12-21 22:00:34,965 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1974 Valid, 3640 Invalid, 6910 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1507 Valid, 5403 Invalid, 0 Unknown, 0 Unchecked, 6.9s Time] [2023-12-21 22:00:34,987 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 29188 states. [2023-12-21 22:00:35,184 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 29188 to 27482. [2023-12-21 22:00:35,205 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 27482 states, 27481 states have (on average 1.2465339689239838) internal successors, (34256), 27481 states have internal predecessors, (34256), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-21 22:00:35,236 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 27482 states to 27482 states and 34256 transitions. [2023-12-21 22:00:35,236 INFO L78 Accepts]: Start accepts. Automaton has 27482 states and 34256 transitions. Word has length 1835 [2023-12-21 22:00:35,236 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-21 22:00:35,236 INFO L495 AbstractCegarLoop]: Abstraction has 27482 states and 34256 transitions. [2023-12-21 22:00:35,237 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 600.3333333333334) internal successors, (1801), 3 states have internal predecessors, (1801), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-21 22:00:35,237 INFO L276 IsEmpty]: Start isEmpty. Operand 27482 states and 34256 transitions. [2023-12-21 22:00:35,283 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 1850 [2023-12-21 22:00:35,283 INFO L187 NwaCegarLoop]: Found error trace [2023-12-21 22:00:35,283 INFO L195 NwaCegarLoop]: trace histogram [4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 22:00:35,293 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (30)] Forceful destruction successful, exit code 0 [2023-12-21 22:00:35,488 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 30 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2023-12-21 22:00:35,489 INFO L420 AbstractCegarLoop]: === Iteration 30 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-21 22:00:35,489 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-21 22:00:35,490 INFO L85 PathProgramCache]: Analyzing trace with hash -1140950752, now seen corresponding path program 1 times [2023-12-21 22:00:35,497 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-12-21 22:00:35,498 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1283668752] [2023-12-21 22:00:35,498 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-21 22:00:35,498 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2023-12-21 22:00:35,498 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2023-12-21 22:00:35,499 INFO L229 MonitoredProcess]: Starting monitored process 31 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2023-12-21 22:00:35,500 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (31)] Waiting until timeout for monitored process [2023-12-21 22:00:36,008 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 22:00:36,017 INFO L262 TraceCheckSpWp]: Trace formula consists of 1958 conjuncts, 2 conjunts are in the unsatisfiable core [2023-12-21 22:00:36,028 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-21 22:00:36,088 INFO L134 CoverageAnalysis]: Checked inductivity of 312 backedges. 277 proven. 0 refuted. 0 times theorem prover too weak. 35 trivial. 0 not checked. [2023-12-21 22:00:36,088 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-12-21 22:00:36,088 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-12-21 22:00:36,088 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1283668752] [2023-12-21 22:00:36,088 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1283668752] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-21 22:00:36,089 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-21 22:00:36,089 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2023-12-21 22:00:36,089 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1518986872] [2023-12-21 22:00:36,089 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-21 22:00:36,090 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-12-21 22:00:36,090 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-12-21 22:00:36,091 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-12-21 22:00:36,091 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-12-21 22:00:36,092 INFO L87 Difference]: Start difference. First operand 27482 states and 34256 transitions. Second operand has 3 states, 3 states have (on average 605.0) internal successors, (1815), 3 states have internal predecessors, (1815), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-21 22:00:43,869 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-21 22:00:43,870 INFO L93 Difference]: Finished difference Result 72100 states and 90592 transitions. [2023-12-21 22:00:43,870 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-12-21 22:00:43,870 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 605.0) internal successors, (1815), 3 states have internal predecessors, (1815), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 1849 [2023-12-21 22:00:43,871 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-21 22:00:43,928 INFO L225 Difference]: With dead ends: 72100 [2023-12-21 22:00:43,928 INFO L226 Difference]: Without dead ends: 46246 [2023-12-21 22:00:43,951 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 1848 GetRequests, 1847 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 22:00:43,951 INFO L413 NwaCegarLoop]: 3939 mSDtfsCounter, 1809 mSDsluCounter, 222 mSDsCounter, 0 mSdLazyCounter, 6278 mSolverCounterSat, 1243 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 6.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1809 SdHoareTripleChecker+Valid, 4161 SdHoareTripleChecker+Invalid, 7521 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1243 IncrementalHoareTripleChecker+Valid, 6278 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 7.4s IncrementalHoareTripleChecker+Time [2023-12-21 22:00:43,952 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1809 Valid, 4161 Invalid, 7521 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1243 Valid, 6278 Invalid, 0 Unknown, 0 Unchecked, 7.4s Time] [2023-12-21 22:00:43,982 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 46246 states. [2023-12-21 22:00:44,266 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 46246 to 44479. [2023-12-21 22:00:44,298 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 44479 states, 44478 states have (on average 1.1924771797293043) internal successors, (53039), 44478 states have internal predecessors, (53039), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-21 22:00:44,346 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 44479 states to 44479 states and 53039 transitions. [2023-12-21 22:00:44,346 INFO L78 Accepts]: Start accepts. Automaton has 44479 states and 53039 transitions. Word has length 1849 [2023-12-21 22:00:44,346 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-21 22:00:44,346 INFO L495 AbstractCegarLoop]: Abstraction has 44479 states and 53039 transitions. [2023-12-21 22:00:44,347 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 605.0) internal successors, (1815), 3 states have internal predecessors, (1815), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-21 22:00:44,347 INFO L276 IsEmpty]: Start isEmpty. Operand 44479 states and 53039 transitions. [2023-12-21 22:00:44,402 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 1886 [2023-12-21 22:00:44,402 INFO L187 NwaCegarLoop]: Found error trace [2023-12-21 22:00:44,403 INFO L195 NwaCegarLoop]: trace histogram [3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 22:00:44,410 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (31)] Forceful destruction successful, exit code 0 [2023-12-21 22:00:44,607 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 31 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2023-12-21 22:00:44,608 INFO L420 AbstractCegarLoop]: === Iteration 31 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-21 22:00:44,608 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-21 22:00:44,609 INFO L85 PathProgramCache]: Analyzing trace with hash -2116825009, now seen corresponding path program 1 times [2023-12-21 22:00:44,616 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-12-21 22:00:44,617 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [363827600] [2023-12-21 22:00:44,617 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-21 22:00:44,617 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 22:00:44,617 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2023-12-21 22:00:44,618 INFO L229 MonitoredProcess]: Starting monitored process 32 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2023-12-21 22:00:44,646 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (32)] Waiting until timeout for monitored process [2023-12-21 22:00:45,131 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 22:00:45,139 INFO L262 TraceCheckSpWp]: Trace formula consists of 1983 conjuncts, 2 conjunts are in the unsatisfiable core [2023-12-21 22:00:45,150 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-21 22:00:45,335 INFO L134 CoverageAnalysis]: Checked inductivity of 233 backedges. 229 proven. 0 refuted. 0 times theorem prover too weak. 4 trivial. 0 not checked. [2023-12-21 22:00:45,335 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-12-21 22:00:45,336 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-12-21 22:00:45,336 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [363827600] [2023-12-21 22:00:45,336 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [363827600] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-21 22:00:45,336 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-21 22:00:45,336 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2023-12-21 22:00:45,336 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2093206407] [2023-12-21 22:00:45,336 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-21 22:00:45,337 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-12-21 22:00:45,337 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-12-21 22:00:45,339 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-12-21 22:00:45,339 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-12-21 22:00:45,339 INFO L87 Difference]: Start difference. First operand 44479 states and 53039 transitions. Second operand has 3 states, 3 states have (on average 627.3333333333334) internal successors, (1882), 2 states have internal predecessors, (1882), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-21 22:00:53,473 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-21 22:00:53,473 INFO L93 Difference]: Finished difference Result 124684 states and 148474 transitions. [2023-12-21 22:00:53,473 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-12-21 22:00:53,474 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 627.3333333333334) internal successors, (1882), 2 states have internal predecessors, (1882), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 1885 [2023-12-21 22:00:53,474 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-21 22:00:53,591 INFO L225 Difference]: With dead ends: 124684 [2023-12-21 22:00:53,591 INFO L226 Difference]: Without dead ends: 81833 [2023-12-21 22:00:53,648 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 1884 GetRequests, 1883 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 22:00:53,652 INFO L413 NwaCegarLoop]: 1909 mSDtfsCounter, 2065 mSDsluCounter, 129 mSDsCounter, 0 mSdLazyCounter, 4492 mSolverCounterSat, 2342 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 6.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2065 SdHoareTripleChecker+Valid, 2038 SdHoareTripleChecker+Invalid, 6834 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2342 IncrementalHoareTripleChecker+Valid, 4492 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 7.6s IncrementalHoareTripleChecker+Time [2023-12-21 22:00:53,656 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [2065 Valid, 2038 Invalid, 6834 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2342 Valid, 4492 Invalid, 0 Unknown, 0 Unchecked, 7.6s Time] [2023-12-21 22:00:53,724 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 81833 states. [2023-12-21 22:00:54,427 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 81833 to 81831. [2023-12-21 22:00:54,496 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 81831 states, 81830 states have (on average 1.1255896370524257) internal successors, (92107), 81830 states have internal predecessors, (92107), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-21 22:00:54,616 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 81831 states to 81831 states and 92107 transitions. [2023-12-21 22:00:54,616 INFO L78 Accepts]: Start accepts. Automaton has 81831 states and 92107 transitions. Word has length 1885 [2023-12-21 22:00:54,617 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-21 22:00:54,617 INFO L495 AbstractCegarLoop]: Abstraction has 81831 states and 92107 transitions. [2023-12-21 22:00:54,617 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 627.3333333333334) internal successors, (1882), 2 states have internal predecessors, (1882), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-21 22:00:54,618 INFO L276 IsEmpty]: Start isEmpty. Operand 81831 states and 92107 transitions. [2023-12-21 22:00:54,724 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 1969 [2023-12-21 22:00:54,725 INFO L187 NwaCegarLoop]: Found error trace [2023-12-21 22:00:54,725 INFO L195 NwaCegarLoop]: trace histogram [5, 5, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 22:00:54,734 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (32)] Forceful destruction successful, exit code 0 [2023-12-21 22:00:54,931 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 32 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2023-12-21 22:00:54,932 INFO L420 AbstractCegarLoop]: === Iteration 32 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-21 22:00:54,932 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-21 22:00:54,933 INFO L85 PathProgramCache]: Analyzing trace with hash -2045056564, now seen corresponding path program 1 times [2023-12-21 22:00:54,943 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-12-21 22:00:54,944 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1160470340] [2023-12-21 22:00:54,944 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-21 22:00:54,944 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 22:00:54,944 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2023-12-21 22:00:54,945 INFO L229 MonitoredProcess]: Starting monitored process 33 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2023-12-21 22:00:54,947 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (33)] Waiting until timeout for monitored process [2023-12-21 22:00:56,202 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 22:00:56,210 INFO L262 TraceCheckSpWp]: Trace formula consists of 2090 conjuncts, 2 conjunts are in the unsatisfiable core [2023-12-21 22:00:56,221 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-21 22:00:56,420 INFO L134 CoverageAnalysis]: Checked inductivity of 502 backedges. 462 proven. 0 refuted. 0 times theorem prover too weak. 40 trivial. 0 not checked. [2023-12-21 22:00:56,420 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-12-21 22:00:56,421 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-12-21 22:00:56,421 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1160470340] [2023-12-21 22:00:56,421 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1160470340] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-21 22:00:56,421 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-21 22:00:56,421 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2023-12-21 22:00:56,421 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [730685347] [2023-12-21 22:00:56,421 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-21 22:00:56,422 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-12-21 22:00:56,422 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-12-21 22:00:56,424 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-12-21 22:00:56,424 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-12-21 22:00:56,424 INFO L87 Difference]: Start difference. First operand 81831 states and 92107 transitions. Second operand has 3 states, 3 states have (on average 643.3333333333334) internal successors, (1930), 3 states have internal predecessors, (1930), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-21 22:01:02,147 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-21 22:01:02,147 INFO L93 Difference]: Finished difference Result 187498 states and 210429 transitions. [2023-12-21 22:01:02,148 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-12-21 22:01:02,148 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 643.3333333333334) internal successors, (1930), 3 states have internal predecessors, (1930), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 1968 [2023-12-21 22:01:02,148 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-21 22:01:02,265 INFO L225 Difference]: With dead ends: 187498 [2023-12-21 22:01:02,265 INFO L226 Difference]: Without dead ends: 95385 [2023-12-21 22:01:02,302 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 1967 GetRequests, 1966 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 22:01:02,303 INFO L413 NwaCegarLoop]: 1022 mSDtfsCounter, 3013 mSDsluCounter, 72 mSDsCounter, 0 mSdLazyCounter, 4773 mSolverCounterSat, 1181 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 4.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 3013 SdHoareTripleChecker+Valid, 1094 SdHoareTripleChecker+Invalid, 5954 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1181 IncrementalHoareTripleChecker+Valid, 4773 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 5.1s IncrementalHoareTripleChecker+Time [2023-12-21 22:01:02,303 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [3013 Valid, 1094 Invalid, 5954 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1181 Valid, 4773 Invalid, 0 Unknown, 0 Unchecked, 5.1s Time] [2023-12-21 22:01:02,381 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 95385 states. [2023-12-21 22:01:03,157 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 95385 to 95385. [2023-12-21 22:01:03,222 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 95385 states, 95384 states have (on average 1.0814077832760212) internal successors, (103149), 95384 states have internal predecessors, (103149), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-21 22:01:03,486 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 95385 states to 95385 states and 103149 transitions. [2023-12-21 22:01:03,487 INFO L78 Accepts]: Start accepts. Automaton has 95385 states and 103149 transitions. Word has length 1968 [2023-12-21 22:01:03,487 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-21 22:01:03,487 INFO L495 AbstractCegarLoop]: Abstraction has 95385 states and 103149 transitions. [2023-12-21 22:01:03,488 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 643.3333333333334) internal successors, (1930), 3 states have internal predecessors, (1930), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-21 22:01:03,488 INFO L276 IsEmpty]: Start isEmpty. Operand 95385 states and 103149 transitions. [2023-12-21 22:01:03,576 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 2040 [2023-12-21 22:01:03,576 INFO L187 NwaCegarLoop]: Found error trace [2023-12-21 22:01:03,577 INFO L195 NwaCegarLoop]: trace histogram [5, 5, 5, 5, 5, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 22:01:03,582 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (33)] Forceful destruction successful, exit code 0 [2023-12-21 22:01:03,782 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 33 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2023-12-21 22:01:03,783 INFO L420 AbstractCegarLoop]: === Iteration 33 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-21 22:01:03,783 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-21 22:01:03,783 INFO L85 PathProgramCache]: Analyzing trace with hash 1784354005, now seen corresponding path program 1 times [2023-12-21 22:01:03,792 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-12-21 22:01:03,792 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1685961834] [2023-12-21 22:01:03,792 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-21 22:01:03,792 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 22:01:03,792 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2023-12-21 22:01:03,793 INFO L229 MonitoredProcess]: Starting monitored process 34 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2023-12-21 22:01:03,800 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (34)] Waiting until timeout for monitored process [2023-12-21 22:01:04,546 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 22:01:04,554 INFO L262 TraceCheckSpWp]: Trace formula consists of 2164 conjuncts, 3 conjunts are in the unsatisfiable core [2023-12-21 22:01:04,568 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-21 22:01:04,619 INFO L134 CoverageAnalysis]: Checked inductivity of 583 backedges. 404 proven. 0 refuted. 0 times theorem prover too weak. 179 trivial. 0 not checked. [2023-12-21 22:01:04,619 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-12-21 22:01:04,619 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-12-21 22:01:04,619 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1685961834] [2023-12-21 22:01:04,619 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1685961834] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-21 22:01:04,619 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-21 22:01:04,620 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2023-12-21 22:01:04,620 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1907108717] [2023-12-21 22:01:04,620 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-21 22:01:04,621 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-12-21 22:01:04,621 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-12-21 22:01:04,623 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-12-21 22:01:04,623 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-12-21 22:01:04,623 INFO L87 Difference]: Start difference. First operand 95385 states and 103149 transitions. Second operand has 3 states, 3 states have (on average 632.3333333333334) internal successors, (1897), 3 states have internal predecessors, (1897), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-21 22:01:11,499 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-21 22:01:11,500 INFO L93 Difference]: Finished difference Result 204416 states and 221019 transitions. [2023-12-21 22:01:11,500 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-12-21 22:01:11,501 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 632.3333333333334) internal successors, (1897), 3 states have internal predecessors, (1897), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 2039 [2023-12-21 22:01:11,501 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-21 22:01:11,687 INFO L225 Difference]: With dead ends: 204416 [2023-12-21 22:01:11,687 INFO L226 Difference]: Without dead ends: 110659 [2023-12-21 22:01:11,722 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 2038 GetRequests, 2037 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 22:01:11,722 INFO L413 NwaCegarLoop]: 3612 mSDtfsCounter, 1843 mSDsluCounter, 268 mSDsCounter, 0 mSdLazyCounter, 5112 mSolverCounterSat, 578 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 5.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1843 SdHoareTripleChecker+Valid, 3880 SdHoareTripleChecker+Invalid, 5690 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 578 IncrementalHoareTripleChecker+Valid, 5112 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 6.2s IncrementalHoareTripleChecker+Time [2023-12-21 22:01:11,722 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1843 Valid, 3880 Invalid, 5690 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [578 Valid, 5112 Invalid, 0 Unknown, 0 Unchecked, 6.2s Time] [2023-12-21 22:01:11,809 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 110659 states. [2023-12-21 22:01:12,765 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 110659 to 110659. [2023-12-21 22:01:12,850 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 110659 states, 110658 states have (on average 1.0745359576352365) internal successors, (118906), 110658 states have internal predecessors, (118906), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-21 22:01:12,993 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 110659 states to 110659 states and 118906 transitions. [2023-12-21 22:01:12,993 INFO L78 Accepts]: Start accepts. Automaton has 110659 states and 118906 transitions. Word has length 2039 [2023-12-21 22:01:12,994 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-21 22:01:12,994 INFO L495 AbstractCegarLoop]: Abstraction has 110659 states and 118906 transitions. [2023-12-21 22:01:12,994 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 632.3333333333334) internal successors, (1897), 3 states have internal predecessors, (1897), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-21 22:01:12,995 INFO L276 IsEmpty]: Start isEmpty. Operand 110659 states and 118906 transitions. [2023-12-21 22:01:13,390 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 2065 [2023-12-21 22:01:13,390 INFO L187 NwaCegarLoop]: Found error trace [2023-12-21 22:01:13,391 INFO L195 NwaCegarLoop]: trace histogram [6, 6, 6, 6, 6, 6, 6, 6, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 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, 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1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 22:01:13,398 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 22:01:13,596 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 22:01:13,596 INFO L420 AbstractCegarLoop]: === Iteration 34 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-21 22:01:13,596 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-21 22:01:13,597 INFO L85 PathProgramCache]: Analyzing trace with hash 946341345, now seen corresponding path program 1 times [2023-12-21 22:01:13,605 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-12-21 22:01:13,605 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1186731423] [2023-12-21 22:01:13,605 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-21 22:01:13,606 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 22:01:13,606 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2023-12-21 22:01:13,607 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 22:01:13,632 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 22:01:14,342 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 22:01:14,353 INFO L262 TraceCheckSpWp]: Trace formula consists of 2206 conjuncts, 2 conjunts are in the unsatisfiable core [2023-12-21 22:01:14,364 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-21 22:01:14,404 INFO L134 CoverageAnalysis]: Checked inductivity of 692 backedges. 503 proven. 0 refuted. 0 times theorem prover too weak. 189 trivial. 0 not checked. [2023-12-21 22:01:14,404 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-12-21 22:01:14,404 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-12-21 22:01:14,404 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1186731423] [2023-12-21 22:01:14,404 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1186731423] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-21 22:01:14,404 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-21 22:01:14,404 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2023-12-21 22:01:14,404 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1627350948] [2023-12-21 22:01:14,405 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-21 22:01:14,406 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-12-21 22:01:14,406 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-12-21 22:01:14,407 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-12-21 22:01:14,407 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-12-21 22:01:14,408 INFO L87 Difference]: Start difference. First operand 110659 states and 118906 transitions. Second operand has 3 states, 3 states have (on average 637.6666666666666) internal successors, (1913), 3 states have internal predecessors, (1913), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-21 22:01:21,963 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-21 22:01:21,964 INFO L93 Difference]: Finished difference Result 263846 states and 286141 transitions. [2023-12-21 22:01:21,964 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-12-21 22:01:21,965 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 637.6666666666666) internal successors, (1913), 3 states have internal predecessors, (1913), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 2064 [2023-12-21 22:01:21,965 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-21 22:01:22,206 INFO L225 Difference]: With dead ends: 263846 [2023-12-21 22:01:22,206 INFO L226 Difference]: Without dead ends: 151407 [2023-12-21 22:01:22,261 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 2063 GetRequests, 2062 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 22:01:22,262 INFO L413 NwaCegarLoop]: 3670 mSDtfsCounter, 1789 mSDsluCounter, 235 mSDsCounter, 0 mSdLazyCounter, 5613 mSolverCounterSat, 1445 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 5.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1789 SdHoareTripleChecker+Valid, 3905 SdHoareTripleChecker+Invalid, 7058 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1445 IncrementalHoareTripleChecker+Valid, 5613 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 6.7s IncrementalHoareTripleChecker+Time [2023-12-21 22:01:22,262 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1789 Valid, 3905 Invalid, 7058 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1445 Valid, 5613 Invalid, 0 Unknown, 0 Unchecked, 6.7s Time] [2023-12-21 22:01:22,388 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 151407 states. [2023-12-21 22:01:23,673 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 151407 to 151397. [2023-12-21 22:01:23,775 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 151397 states, 151396 states have (on average 1.063647652513937) internal successors, (161032), 151396 states have internal predecessors, (161032), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-21 22:01:24,222 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 151397 states to 151397 states and 161032 transitions. [2023-12-21 22:01:24,222 INFO L78 Accepts]: Start accepts. Automaton has 151397 states and 161032 transitions. Word has length 2064 [2023-12-21 22:01:24,222 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-21 22:01:24,222 INFO L495 AbstractCegarLoop]: Abstraction has 151397 states and 161032 transitions. [2023-12-21 22:01:24,223 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 637.6666666666666) internal successors, (1913), 3 states have internal predecessors, (1913), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-21 22:01:24,223 INFO L276 IsEmpty]: Start isEmpty. Operand 151397 states and 161032 transitions. [2023-12-21 22:01:24,413 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 2075 [2023-12-21 22:01:24,413 INFO L187 NwaCegarLoop]: Found error trace [2023-12-21 22:01:24,414 INFO L195 NwaCegarLoop]: trace histogram [4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 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, 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1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 22:01:24,420 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (35)] Ended with exit code 0 [2023-12-21 22:01:24,619 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 22:01:24,620 INFO L420 AbstractCegarLoop]: === Iteration 35 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-21 22:01:24,620 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-21 22:01:24,621 INFO L85 PathProgramCache]: Analyzing trace with hash -70024975, now seen corresponding path program 1 times [2023-12-21 22:01:24,629 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-12-21 22:01:24,629 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [780108288] [2023-12-21 22:01:24,629 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-21 22:01:24,629 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 22:01:24,629 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2023-12-21 22:01:24,630 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 22:01:24,864 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 22:01:25,457 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 22:01:25,468 INFO L262 TraceCheckSpWp]: Trace formula consists of 2186 conjuncts, 9 conjunts are in the unsatisfiable core [2023-12-21 22:01:25,484 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-21 22:01:44,965 INFO L134 CoverageAnalysis]: Checked inductivity of 598 backedges. 562 proven. 0 refuted. 0 times theorem prover too weak. 36 trivial. 0 not checked. [2023-12-21 22:01:44,965 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-12-21 22:01:44,966 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-12-21 22:01:44,966 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [780108288] [2023-12-21 22:01:44,966 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [780108288] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-21 22:01:44,966 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-21 22:01:44,966 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2023-12-21 22:01:44,966 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [7590579] [2023-12-21 22:01:44,966 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-21 22:01:44,967 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2023-12-21 22:01:44,968 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-12-21 22:01:44,969 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2023-12-21 22:01:44,969 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2023-12-21 22:01:44,969 INFO L87 Difference]: Start difference. First operand 151397 states and 161032 transitions. Second operand has 5 states, 5 states have (on average 407.8) internal successors, (2039), 5 states have internal predecessors, (2039), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-21 22:02:00,458 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-21 22:02:00,458 INFO L93 Difference]: Finished difference Result 379271 states and 403510 transitions. [2023-12-21 22:02:00,458 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2023-12-21 22:02:00,459 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 407.8) internal successors, (2039), 5 states have internal predecessors, (2039), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 2074 [2023-12-21 22:02:00,460 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-21 22:02:00,764 INFO L225 Difference]: With dead ends: 379271 [2023-12-21 22:02:00,764 INFO L226 Difference]: Without dead ends: 221047 [2023-12-21 22:02:00,840 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 2077 GetRequests, 2072 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=18, Invalid=24, Unknown=0, NotChecked=0, Total=42 [2023-12-21 22:02:00,841 INFO L413 NwaCegarLoop]: 741 mSDtfsCounter, 6725 mSDsluCounter, 323 mSDsCounter, 0 mSdLazyCounter, 17778 mSolverCounterSat, 4649 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 12.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 6725 SdHoareTripleChecker+Valid, 1064 SdHoareTripleChecker+Invalid, 22427 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 4649 IncrementalHoareTripleChecker+Valid, 17778 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 14.2s IncrementalHoareTripleChecker+Time [2023-12-21 22:02:00,841 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [6725 Valid, 1064 Invalid, 22427 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [4649 Valid, 17778 Invalid, 0 Unknown, 0 Unchecked, 14.2s Time] [2023-12-21 22:02:01,011 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 221047 states. [2023-12-21 22:02:02,947 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 221047 to 178551. [2023-12-21 22:02:03,060 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 178551 states, 178550 states have (on average 1.0409689162699525) internal successors, (185865), 178550 states have internal predecessors, (185865), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-21 22:02:03,431 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 178551 states to 178551 states and 185865 transitions. [2023-12-21 22:02:03,433 INFO L78 Accepts]: Start accepts. Automaton has 178551 states and 185865 transitions. Word has length 2074 [2023-12-21 22:02:03,433 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-21 22:02:03,433 INFO L495 AbstractCegarLoop]: Abstraction has 178551 states and 185865 transitions. [2023-12-21 22:02:03,434 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 407.8) internal successors, (2039), 5 states have internal predecessors, (2039), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-21 22:02:03,434 INFO L276 IsEmpty]: Start isEmpty. Operand 178551 states and 185865 transitions. [2023-12-21 22:02:03,802 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 2558 [2023-12-21 22:02:03,802 INFO L187 NwaCegarLoop]: Found error trace [2023-12-21 22:02:03,803 INFO L195 NwaCegarLoop]: trace histogram [7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 22:02:03,809 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (36)] Forceful destruction successful, exit code 0 [2023-12-21 22:02:04,009 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 36 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2023-12-21 22:02:04,009 INFO L420 AbstractCegarLoop]: === Iteration 36 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-21 22:02:04,010 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-21 22:02:04,010 INFO L85 PathProgramCache]: Analyzing trace with hash -424522496, now seen corresponding path program 1 times [2023-12-21 22:02:04,042 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-12-21 22:02:04,043 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1635084240] [2023-12-21 22:02:04,043 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-21 22:02:04,043 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2023-12-21 22:02:04,043 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2023-12-21 22:02:04,044 INFO L229 MonitoredProcess]: Starting monitored process 37 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2023-12-21 22:02:04,112 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (37)] Waiting until timeout for monitored process [2023-12-21 22:02:04,904 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 22:02:04,919 INFO L262 TraceCheckSpWp]: Trace formula consists of 2718 conjuncts, 2 conjunts are in the unsatisfiable core [2023-12-21 22:02:04,933 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-21 22:02:05,070 INFO L134 CoverageAnalysis]: Checked inductivity of 2399 backedges. 1780 proven. 0 refuted. 0 times theorem prover too weak. 619 trivial. 0 not checked. [2023-12-21 22:02:05,070 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-12-21 22:02:05,070 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-12-21 22:02:05,070 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1635084240] [2023-12-21 22:02:05,070 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1635084240] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-21 22:02:05,070 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-21 22:02:05,071 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2023-12-21 22:02:05,071 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1624873168] [2023-12-21 22:02:05,071 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-21 22:02:05,073 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-12-21 22:02:05,073 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-12-21 22:02:05,075 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-12-21 22:02:05,075 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-12-21 22:02:05,075 INFO L87 Difference]: Start difference. First operand 178551 states and 185865 transitions. Second operand has 3 states, 3 states have (on average 692.0) internal successors, (2076), 3 states have internal predecessors, (2076), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-21 22:02:11,147 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-21 22:02:11,147 INFO L93 Difference]: Finished difference Result 426791 states and 445044 transitions. [2023-12-21 22:02:11,147 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-12-21 22:02:11,148 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 692.0) internal successors, (2076), 3 states have internal predecessors, (2076), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 2557 [2023-12-21 22:02:11,148 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-21 22:02:11,658 INFO L225 Difference]: With dead ends: 426791 [2023-12-21 22:02:11,659 INFO L226 Difference]: Without dead ends: 249868 [2023-12-21 22:02:11,740 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 2556 GetRequests, 2555 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 22:02:11,741 INFO L413 NwaCegarLoop]: 1361 mSDtfsCounter, 1640 mSDsluCounter, 241 mSDsCounter, 0 mSdLazyCounter, 4577 mSolverCounterSat, 899 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 3.9s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1640 SdHoareTripleChecker+Valid, 1602 SdHoareTripleChecker+Invalid, 5476 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 899 IncrementalHoareTripleChecker+Valid, 4577 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 4.6s IncrementalHoareTripleChecker+Time [2023-12-21 22:02:11,742 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1640 Valid, 1602 Invalid, 5476 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [899 Valid, 4577 Invalid, 0 Unknown, 0 Unchecked, 4.6s Time] [2023-12-21 22:02:12,133 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 249868 states. [2023-12-21 22:02:14,250 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 249868 to 229485. [2023-12-21 22:02:14,369 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 229485 states, 229484 states have (on average 1.035026407069774) internal successors, (237522), 229484 states have internal predecessors, (237522), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-21 22:02:14,874 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 229485 states to 229485 states and 237522 transitions. [2023-12-21 22:02:14,875 INFO L78 Accepts]: Start accepts. Automaton has 229485 states and 237522 transitions. Word has length 2557 [2023-12-21 22:02:14,875 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-21 22:02:14,875 INFO L495 AbstractCegarLoop]: Abstraction has 229485 states and 237522 transitions. [2023-12-21 22:02:14,876 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 692.0) internal successors, (2076), 3 states have internal predecessors, (2076), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-21 22:02:14,876 INFO L276 IsEmpty]: Start isEmpty. Operand 229485 states and 237522 transitions. [2023-12-21 22:02:15,325 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 2931 [2023-12-21 22:02:15,326 INFO L187 NwaCegarLoop]: Found error trace [2023-12-21 22:02:15,327 INFO L195 NwaCegarLoop]: trace histogram [7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 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1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 22:02:15,334 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (37)] Forceful destruction successful, exit code 0 [2023-12-21 22:02:15,533 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 37 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2023-12-21 22:02:15,534 INFO L420 AbstractCegarLoop]: === Iteration 37 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-21 22:02:15,534 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-21 22:02:15,535 INFO L85 PathProgramCache]: Analyzing trace with hash 81708813, now seen corresponding path program 1 times [2023-12-21 22:02:15,549 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-12-21 22:02:15,549 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [189959256] [2023-12-21 22:02:15,549 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-21 22:02:15,549 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 22:02:15,549 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2023-12-21 22:02:15,551 INFO L229 MonitoredProcess]: Starting monitored process 38 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2023-12-21 22:02:15,553 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (38)] Waiting until timeout for monitored process [2023-12-21 22:02:16,371 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 22:02:16,384 INFO L262 TraceCheckSpWp]: Trace formula consists of 3096 conjuncts, 2 conjunts are in the unsatisfiable core [2023-12-21 22:02:16,399 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-21 22:02:16,645 INFO L134 CoverageAnalysis]: Checked inductivity of 2881 backedges. 2226 proven. 0 refuted. 0 times theorem prover too weak. 655 trivial. 0 not checked. [2023-12-21 22:02:16,645 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-12-21 22:02:16,645 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-12-21 22:02:16,645 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [189959256] [2023-12-21 22:02:16,645 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [189959256] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-21 22:02:16,645 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-21 22:02:16,645 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2023-12-21 22:02:16,645 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [520896223] [2023-12-21 22:02:16,646 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-21 22:02:16,648 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-12-21 22:02:16,648 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-12-21 22:02:16,650 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-12-21 22:02:16,650 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-12-21 22:02:16,650 INFO L87 Difference]: Start difference. First operand 229485 states and 237522 transitions. Second operand has 3 states, 3 states have (on average 819.3333333333334) internal successors, (2458), 3 states have internal predecessors, (2458), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-21 22:02:23,515 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-21 22:02:23,515 INFO L93 Difference]: Finished difference Result 469226 states and 485407 transitions. [2023-12-21 22:02:23,515 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-12-21 22:02:23,516 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 819.3333333333334) internal successors, (2458), 3 states have internal predecessors, (2458), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 2930 [2023-12-21 22:02:23,517 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-21 22:02:24,000 INFO L225 Difference]: With dead ends: 469226 [2023-12-21 22:02:24,000 INFO L226 Difference]: Without dead ends: 229445 [2023-12-21 22:02:24,102 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 2929 GetRequests, 2928 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 22:02:24,103 INFO L413 NwaCegarLoop]: 2810 mSDtfsCounter, 1760 mSDsluCounter, 185 mSDsCounter, 0 mSdLazyCounter, 4313 mSolverCounterSat, 893 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 4.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1760 SdHoareTripleChecker+Valid, 2995 SdHoareTripleChecker+Invalid, 5206 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 893 IncrementalHoareTripleChecker+Valid, 4313 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 5.1s IncrementalHoareTripleChecker+Time [2023-12-21 22:02:24,103 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1760 Valid, 2995 Invalid, 5206 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [893 Valid, 4313 Invalid, 0 Unknown, 0 Unchecked, 5.1s Time] [2023-12-21 22:02:24,310 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 229445 states. [2023-12-21 22:02:26,772 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 229445 to 212458. [2023-12-21 22:02:26,904 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 212458 states, 212457 states have (on average 1.0194815892157) internal successors, (216596), 212457 states have internal predecessors, (216596), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-21 22:02:27,364 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 212458 states to 212458 states and 216596 transitions. [2023-12-21 22:02:27,364 INFO L78 Accepts]: Start accepts. Automaton has 212458 states and 216596 transitions. Word has length 2930 [2023-12-21 22:02:27,365 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-21 22:02:27,365 INFO L495 AbstractCegarLoop]: Abstraction has 212458 states and 216596 transitions. [2023-12-21 22:02:27,366 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 819.3333333333334) internal successors, (2458), 3 states have internal predecessors, (2458), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-21 22:02:27,366 INFO L276 IsEmpty]: Start isEmpty. Operand 212458 states and 216596 transitions. [2023-12-21 22:02:27,814 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 3114 [2023-12-21 22:02:27,814 INFO L187 NwaCegarLoop]: Found error trace [2023-12-21 22:02:27,815 INFO L195 NwaCegarLoop]: trace histogram [8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 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1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 22:02:27,822 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (38)] Forceful destruction successful, exit code 0 [2023-12-21 22:02:28,021 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 38 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2023-12-21 22:02:28,021 INFO L420 AbstractCegarLoop]: === Iteration 38 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-21 22:02:28,022 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-21 22:02:28,022 INFO L85 PathProgramCache]: Analyzing trace with hash 1443941132, now seen corresponding path program 1 times [2023-12-21 22:02:28,037 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-12-21 22:02:28,037 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [704415028] [2023-12-21 22:02:28,037 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-21 22:02:28,037 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 22:02:28,037 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2023-12-21 22:02:28,038 INFO L229 MonitoredProcess]: Starting monitored process 39 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2023-12-21 22:02:28,040 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (39)] Waiting until timeout for monitored process [2023-12-21 22:02:28,981 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 22:02:28,995 INFO L262 TraceCheckSpWp]: Trace formula consists of 3294 conjuncts, 2 conjunts are in the unsatisfiable core [2023-12-21 22:02:29,014 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-21 22:02:29,560 INFO L134 CoverageAnalysis]: Checked inductivity of 3856 backedges. 2918 proven. 0 refuted. 0 times theorem prover too weak. 938 trivial. 0 not checked. [2023-12-21 22:02:29,562 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-12-21 22:02:29,563 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-12-21 22:02:29,563 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [704415028] [2023-12-21 22:02:29,563 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [704415028] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-21 22:02:29,563 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-21 22:02:29,564 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2023-12-21 22:02:29,564 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2104595759] [2023-12-21 22:02:29,564 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-21 22:02:29,566 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-12-21 22:02:29,567 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-12-21 22:02:29,568 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-12-21 22:02:29,569 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-12-21 22:02:29,569 INFO L87 Difference]: Start difference. First operand 212458 states and 216596 transitions. Second operand has 3 states, 3 states have (on average 819.3333333333334) internal successors, (2458), 3 states have internal predecessors, (2458), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-21 22:02:35,667 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-21 22:02:35,667 INFO L93 Difference]: Finished difference Result 421582 states and 429837 transitions. [2023-12-21 22:02:35,668 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-12-21 22:02:35,668 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 819.3333333333334) internal successors, (2458), 3 states have internal predecessors, (2458), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 3113 [2023-12-21 22:02:35,669 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-21 22:02:36,026 INFO L225 Difference]: With dead ends: 421582 [2023-12-21 22:02:36,026 INFO L226 Difference]: Without dead ends: 210750 [2023-12-21 22:02:36,111 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 3112 GetRequests, 3111 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 22:02:36,114 INFO L413 NwaCegarLoop]: 2504 mSDtfsCounter, 1772 mSDsluCounter, 244 mSDsCounter, 0 mSdLazyCounter, 4392 mSolverCounterSat, 525 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 3.9s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1772 SdHoareTripleChecker+Valid, 2748 SdHoareTripleChecker+Invalid, 4917 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 525 IncrementalHoareTripleChecker+Valid, 4392 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 4.7s IncrementalHoareTripleChecker+Time [2023-12-21 22:02:36,114 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1772 Valid, 2748 Invalid, 4917 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [525 Valid, 4392 Invalid, 0 Unknown, 0 Unchecked, 4.7s Time] [2023-12-21 22:02:36,300 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 210750 states. [2023-12-21 22:02:37,985 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 210750 to 203955. [2023-12-21 22:02:38,118 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 203955 states, 203954 states have (on average 1.014380693685831) internal successors, (206887), 203954 states have internal predecessors, (206887), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-21 22:02:38,577 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 203955 states to 203955 states and 206887 transitions. [2023-12-21 22:02:38,577 INFO L78 Accepts]: Start accepts. Automaton has 203955 states and 206887 transitions. Word has length 3113 [2023-12-21 22:02:38,578 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-21 22:02:38,578 INFO L495 AbstractCegarLoop]: Abstraction has 203955 states and 206887 transitions. [2023-12-21 22:02:38,579 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 819.3333333333334) internal successors, (2458), 3 states have internal predecessors, (2458), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-21 22:02:38,579 INFO L276 IsEmpty]: Start isEmpty. Operand 203955 states and 206887 transitions. [2023-12-21 22:02:39,028 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 3183 [2023-12-21 22:02:39,028 INFO L187 NwaCegarLoop]: Found error trace [2023-12-21 22:02:39,029 INFO L195 NwaCegarLoop]: trace histogram [11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 7, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 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1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 22:02:39,037 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (39)] Forceful destruction successful, exit code 0 [2023-12-21 22:02:39,237 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 39 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2023-12-21 22:02:39,237 INFO L420 AbstractCegarLoop]: === Iteration 39 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-21 22:02:39,238 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-21 22:02:39,238 INFO L85 PathProgramCache]: Analyzing trace with hash 401744396, now seen corresponding path program 1 times [2023-12-21 22:02:39,253 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-12-21 22:02:39,254 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [471106381] [2023-12-21 22:02:39,254 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-21 22:02:39,254 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 22:02:39,254 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2023-12-21 22:02:39,255 INFO L229 MonitoredProcess]: Starting monitored process 40 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2023-12-21 22:02:39,257 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (40)] Waiting until timeout for monitored process [2023-12-21 22:02:40,241 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 22:02:40,256 INFO L262 TraceCheckSpWp]: Trace formula consists of 3398 conjuncts, 2 conjunts are in the unsatisfiable core [2023-12-21 22:02:40,273 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-21 22:02:40,583 INFO L134 CoverageAnalysis]: Checked inductivity of 5765 backedges. 3900 proven. 0 refuted. 0 times theorem prover too weak. 1865 trivial. 0 not checked. [2023-12-21 22:02:40,583 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-12-21 22:02:40,583 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-12-21 22:02:40,584 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [471106381] [2023-12-21 22:02:40,584 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [471106381] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-21 22:02:40,584 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-21 22:02:40,584 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2023-12-21 22:02:40,584 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1305994908] [2023-12-21 22:02:40,584 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-21 22:02:40,585 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-12-21 22:02:40,586 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-12-21 22:02:40,587 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-12-21 22:02:40,587 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-12-21 22:02:40,587 INFO L87 Difference]: Start difference. First operand 203955 states and 206887 transitions. Second operand has 3 states, 3 states have (on average 741.0) internal successors, (2223), 3 states have internal predecessors, (2223), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-21 22:02:47,313 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-21 22:02:47,313 INFO L93 Difference]: Finished difference Result 482757 states and 490241 transitions. [2023-12-21 22:02:47,313 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-12-21 22:02:47,314 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 741.0) internal successors, (2223), 3 states have internal predecessors, (2223), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 3182 [2023-12-21 22:02:47,315 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-21 22:02:48,058 INFO L225 Difference]: With dead ends: 482757 [2023-12-21 22:02:48,058 INFO L226 Difference]: Without dead ends: 278709 [2023-12-21 22:02:48,091 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 3181 GetRequests, 3180 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 22:02:48,092 INFO L413 NwaCegarLoop]: 2937 mSDtfsCounter, 1522 mSDsluCounter, 164 mSDsCounter, 0 mSdLazyCounter, 4665 mSolverCounterSat, 737 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 4.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1522 SdHoareTripleChecker+Valid, 3101 SdHoareTripleChecker+Invalid, 5402 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 737 IncrementalHoareTripleChecker+Valid, 4665 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 5.4s IncrementalHoareTripleChecker+Time [2023-12-21 22:02:48,092 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1522 Valid, 3101 Invalid, 5402 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [737 Valid, 4665 Invalid, 0 Unknown, 0 Unchecked, 5.4s Time] [2023-12-21 22:02:48,307 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 278709 states. [2023-12-21 22:02:50,575 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 278709 to 261672. [2023-12-21 22:02:50,722 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 261672 states, 261671 states have (on average 1.0131615654772597) internal successors, (265115), 261671 states have internal predecessors, (265115), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-21 22:02:51,279 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 261672 states to 261672 states and 265115 transitions. [2023-12-21 22:02:51,279 INFO L78 Accepts]: Start accepts. Automaton has 261672 states and 265115 transitions. Word has length 3182 [2023-12-21 22:02:51,280 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-21 22:02:51,280 INFO L495 AbstractCegarLoop]: Abstraction has 261672 states and 265115 transitions. [2023-12-21 22:02:51,280 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 741.0) internal successors, (2223), 3 states have internal predecessors, (2223), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-21 22:02:51,280 INFO L276 IsEmpty]: Start isEmpty. Operand 261672 states and 265115 transitions. [2023-12-21 22:02:51,827 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 3226 [2023-12-21 22:02:51,827 INFO L187 NwaCegarLoop]: Found error trace [2023-12-21 22:02:51,845 INFO L195 NwaCegarLoop]: trace histogram [6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 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, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 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1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 22:02:51,862 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 (40)] Ended with exit code 0 [2023-12-21 22:02:52,051 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 40 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2023-12-21 22:02:52,052 INFO L420 AbstractCegarLoop]: === Iteration 40 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-21 22:02:52,052 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-21 22:02:52,053 INFO L85 PathProgramCache]: Analyzing trace with hash 411718930, now seen corresponding path program 1 times [2023-12-21 22:02:52,065 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-12-21 22:02:52,065 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [943716462] [2023-12-21 22:02:52,065 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-21 22:02:52,066 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 22:02:52,066 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2023-12-21 22:02:52,067 INFO L229 MonitoredProcess]: Starting monitored process 41 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 22:02:52,069 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 (41)] Waiting until timeout for monitored process [2023-12-21 22:02:53,029 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 22:02:53,043 INFO L262 TraceCheckSpWp]: Trace formula consists of 3375 conjuncts, 3 conjunts are in the unsatisfiable core [2023-12-21 22:02:53,060 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-21 22:02:53,142 INFO L134 CoverageAnalysis]: Checked inductivity of 2394 backedges. 1635 proven. 0 refuted. 0 times theorem prover too weak. 759 trivial. 0 not checked. [2023-12-21 22:02:53,142 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-12-21 22:02:53,142 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-12-21 22:02:53,142 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [943716462] [2023-12-21 22:02:53,143 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [943716462] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-21 22:02:53,143 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-21 22:02:53,143 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2023-12-21 22:02:53,143 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2116060833] [2023-12-21 22:02:53,143 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-21 22:02:53,145 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-12-21 22:02:53,145 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-12-21 22:02:53,147 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-12-21 22:02:53,147 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-12-21 22:02:53,147 INFO L87 Difference]: Start difference. First operand 261672 states and 265115 transitions. Second operand has 3 states, 3 states have (on average 925.6666666666666) internal successors, (2777), 3 states have internal predecessors, (2777), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-21 22:02:59,226 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-21 22:02:59,227 INFO L93 Difference]: Finished difference Result 538702 states and 545733 transitions. [2023-12-21 22:02:59,227 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-12-21 22:02:59,227 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 925.6666666666666) internal successors, (2777), 3 states have internal predecessors, (2777), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 3225 [2023-12-21 22:02:59,228 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-21 22:02:59,629 INFO L225 Difference]: With dead ends: 538702 [2023-12-21 22:02:59,629 INFO L226 Difference]: Without dead ends: 278658 [2023-12-21 22:03:00,003 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 3224 GetRequests, 3223 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 22:03:00,009 INFO L413 NwaCegarLoop]: 2923 mSDtfsCounter, 1690 mSDsluCounter, 191 mSDsCounter, 0 mSdLazyCounter, 4473 mSolverCounterSat, 116 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 4.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1690 SdHoareTripleChecker+Valid, 3114 SdHoareTripleChecker+Invalid, 4589 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 116 IncrementalHoareTripleChecker+Valid, 4473 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 4.9s IncrementalHoareTripleChecker+Time [2023-12-21 22:03:00,009 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1690 Valid, 3114 Invalid, 4589 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [116 Valid, 4473 Invalid, 0 Unknown, 0 Unchecked, 4.9s Time] [2023-12-21 22:03:00,193 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 278658 states. [2023-12-21 22:03:02,547 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 278658 to 273557. [2023-12-21 22:03:02,687 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 273557 states, 273556 states have (on average 1.012662855137522) internal successors, (277020), 273556 states have internal predecessors, (277020), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-21 22:03:03,294 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 273557 states to 273557 states and 277020 transitions. [2023-12-21 22:03:03,295 INFO L78 Accepts]: Start accepts. Automaton has 273557 states and 277020 transitions. Word has length 3225 [2023-12-21 22:03:03,296 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-21 22:03:03,297 INFO L495 AbstractCegarLoop]: Abstraction has 273557 states and 277020 transitions. [2023-12-21 22:03:03,297 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 925.6666666666666) internal successors, (2777), 3 states have internal predecessors, (2777), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-21 22:03:03,298 INFO L276 IsEmpty]: Start isEmpty. Operand 273557 states and 277020 transitions. [2023-12-21 22:03:03,603 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 3307 [2023-12-21 22:03:03,604 INFO L187 NwaCegarLoop]: Found error trace [2023-12-21 22:03:03,605 INFO L195 NwaCegarLoop]: trace histogram [10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 7, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 22:03:03,611 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 (41)] Forceful destruction successful, exit code 0 [2023-12-21 22:03:03,811 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 41 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.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 22:03:03,812 INFO L420 AbstractCegarLoop]: === Iteration 41 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-21 22:03:03,812 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-21 22:03:03,812 INFO L85 PathProgramCache]: Analyzing trace with hash -1479028134, now seen corresponding path program 1 times [2023-12-21 22:03:03,825 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-12-21 22:03:03,825 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [894012200] [2023-12-21 22:03:03,825 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-21 22:03:03,825 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 22:03:03,825 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2023-12-21 22:03:03,826 INFO L229 MonitoredProcess]: Starting monitored process 42 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 22:03:03,828 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 (42)] Waiting until timeout for monitored process [2023-12-21 22:03:05,092 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 22:03:05,109 INFO L262 TraceCheckSpWp]: Trace formula consists of 3512 conjuncts, 3 conjunts are in the unsatisfiable core [2023-12-21 22:03:05,128 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-21 22:03:06,299 INFO L134 CoverageAnalysis]: Checked inductivity of 5660 backedges. 3508 proven. 0 refuted. 0 times theorem prover too weak. 2152 trivial. 0 not checked. [2023-12-21 22:03:06,300 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-12-21 22:03:06,300 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-12-21 22:03:06,300 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [894012200] [2023-12-21 22:03:06,300 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [894012200] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-21 22:03:06,300 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-21 22:03:06,300 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2023-12-21 22:03:06,300 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [720457403] [2023-12-21 22:03:06,300 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-21 22:03:06,302 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-12-21 22:03:06,302 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-12-21 22:03:06,303 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-12-21 22:03:06,303 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-12-21 22:03:06,304 INFO L87 Difference]: Start difference. First operand 273557 states and 277020 transitions. Second operand has 3 states, 3 states have (on average 795.3333333333334) internal successors, (2386), 3 states have internal predecessors, (2386), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-21 22:03:12,441 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-21 22:03:12,441 INFO L93 Difference]: Finished difference Result 559071 states and 566117 transitions. [2023-12-21 22:03:12,442 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-12-21 22:03:12,442 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 795.3333333333334) internal successors, (2386), 3 states have internal predecessors, (2386), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 3306 [2023-12-21 22:03:12,443 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-21 22:03:12,887 INFO L225 Difference]: With dead ends: 559071 [2023-12-21 22:03:12,888 INFO L226 Difference]: Without dead ends: 287142 [2023-12-21 22:03:13,020 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 3305 GetRequests, 3304 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 22:03:13,020 INFO L413 NwaCegarLoop]: 2922 mSDtfsCounter, 1219 mSDsluCounter, 189 mSDsCounter, 0 mSdLazyCounter, 4464 mSolverCounterSat, 131 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 3.9s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1219 SdHoareTripleChecker+Valid, 3111 SdHoareTripleChecker+Invalid, 4595 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 131 IncrementalHoareTripleChecker+Valid, 4464 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 4.6s IncrementalHoareTripleChecker+Time [2023-12-21 22:03:13,020 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1219 Valid, 3111 Invalid, 4595 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [131 Valid, 4464 Invalid, 0 Unknown, 0 Unchecked, 4.6s Time] [2023-12-21 22:03:13,284 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 287142 states. [2023-12-21 22:03:16,106 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 287142 to 285442. [2023-12-21 22:03:16,244 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 285442 states, 285441 states have (on average 1.0121321043578182) internal successors, (288904), 285441 states have internal predecessors, (288904), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-21 22:03:16,622 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 285442 states to 285442 states and 288904 transitions. [2023-12-21 22:03:16,622 INFO L78 Accepts]: Start accepts. Automaton has 285442 states and 288904 transitions. Word has length 3306 [2023-12-21 22:03:16,623 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-21 22:03:16,623 INFO L495 AbstractCegarLoop]: Abstraction has 285442 states and 288904 transitions. [2023-12-21 22:03:16,623 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 795.3333333333334) internal successors, (2386), 3 states have internal predecessors, (2386), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-21 22:03:16,623 INFO L276 IsEmpty]: Start isEmpty. Operand 285442 states and 288904 transitions. [2023-12-21 22:03:17,278 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 3314 [2023-12-21 22:03:17,278 INFO L187 NwaCegarLoop]: Found error trace [2023-12-21 22:03:17,279 INFO L195 NwaCegarLoop]: trace histogram [9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 6, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 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, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 22:03:17,289 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 (42)] Forceful destruction successful, exit code 0 [2023-12-21 22:03:17,487 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 42 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.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 22:03:17,488 INFO L420 AbstractCegarLoop]: === Iteration 42 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-21 22:03:17,488 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-21 22:03:17,488 INFO L85 PathProgramCache]: Analyzing trace with hash 2020433142, now seen corresponding path program 1 times [2023-12-21 22:03:17,501 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-12-21 22:03:17,501 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [2057063013] [2023-12-21 22:03:17,502 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-21 22:03:17,502 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 22:03:17,502 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2023-12-21 22:03:17,504 INFO L229 MonitoredProcess]: Starting monitored process 43 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 22:03:17,504 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 (43)] Waiting until timeout for monitored process [2023-12-21 22:03:18,616 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 22:03:18,631 INFO L262 TraceCheckSpWp]: Trace formula consists of 3510 conjuncts, 2 conjunts are in the unsatisfiable core [2023-12-21 22:03:18,648 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-21 22:03:18,925 INFO L134 CoverageAnalysis]: Checked inductivity of 4939 backedges. 3623 proven. 0 refuted. 0 times theorem prover too weak. 1316 trivial. 0 not checked. [2023-12-21 22:03:18,925 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-12-21 22:03:18,925 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-12-21 22:03:18,925 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [2057063013] [2023-12-21 22:03:18,925 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [2057063013] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-21 22:03:18,926 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-21 22:03:18,926 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2023-12-21 22:03:18,926 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [240733682] [2023-12-21 22:03:18,926 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-21 22:03:18,928 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-12-21 22:03:18,928 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-12-21 22:03:18,929 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-12-21 22:03:18,930 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-12-21 22:03:18,930 INFO L87 Difference]: Start difference. First operand 285442 states and 288904 transitions. Second operand has 3 states, 3 states have (on average 830.0) internal successors, (2490), 3 states have internal predecessors, (2490), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-21 22:03:26,311 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-21 22:03:26,312 INFO L93 Difference]: Finished difference Result 643982 states and 652575 transitions. [2023-12-21 22:03:26,312 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-12-21 22:03:26,312 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 830.0) internal successors, (2490), 3 states have internal predecessors, (2490), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 3313 [2023-12-21 22:03:26,313 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-21 22:03:27,121 INFO L225 Difference]: With dead ends: 643982 [2023-12-21 22:03:27,121 INFO L226 Difference]: Without dead ends: 360166 [2023-12-21 22:03:27,255 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 3312 GetRequests, 3311 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 22:03:27,256 INFO L413 NwaCegarLoop]: 2896 mSDtfsCounter, 1495 mSDsluCounter, 197 mSDsCounter, 0 mSdLazyCounter, 4512 mSolverCounterSat, 726 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 4.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1495 SdHoareTripleChecker+Valid, 3093 SdHoareTripleChecker+Invalid, 5238 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 726 IncrementalHoareTripleChecker+Valid, 4512 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 5.7s IncrementalHoareTripleChecker+Time [2023-12-21 22:03:27,256 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1495 Valid, 3093 Invalid, 5238 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [726 Valid, 4512 Invalid, 0 Unknown, 0 Unchecked, 5.7s Time] [2023-12-21 22:03:27,800 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 360166 states. [2023-12-21 22:03:30,999 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 360166 to 348264. [2023-12-21 22:03:31,171 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 348264 states, 348263 states have (on average 1.0109342651961306) internal successors, (352071), 348263 states have internal predecessors, (352071), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-21 22:03:31,884 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 348264 states to 348264 states and 352071 transitions. [2023-12-21 22:03:31,884 INFO L78 Accepts]: Start accepts. Automaton has 348264 states and 352071 transitions. Word has length 3313 [2023-12-21 22:03:31,885 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-21 22:03:31,885 INFO L495 AbstractCegarLoop]: Abstraction has 348264 states and 352071 transitions. [2023-12-21 22:03:31,886 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 830.0) internal successors, (2490), 3 states have internal predecessors, (2490), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-21 22:03:31,886 INFO L276 IsEmpty]: Start isEmpty. Operand 348264 states and 352071 transitions. [2023-12-21 22:03:32,455 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 3546 [2023-12-21 22:03:32,455 INFO L187 NwaCegarLoop]: Found error trace [2023-12-21 22:03:32,456 INFO L195 NwaCegarLoop]: trace histogram [8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 5, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 22:03:32,463 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 (43)] Ended with exit code 0 [2023-12-21 22:03:32,663 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 43 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.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 22:03:32,663 INFO L420 AbstractCegarLoop]: === Iteration 43 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-21 22:03:32,664 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-21 22:03:32,664 INFO L85 PathProgramCache]: Analyzing trace with hash 4833627, now seen corresponding path program 1 times [2023-12-21 22:03:32,678 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-12-21 22:03:32,679 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [192969895] [2023-12-21 22:03:32,679 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-21 22:03:32,679 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2023-12-21 22:03:32,679 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2023-12-21 22:03:32,680 INFO L229 MonitoredProcess]: Starting monitored process 44 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 22:03:32,681 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 (44)] Waiting until timeout for monitored process [2023-12-21 22:03:33,713 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 22:03:33,728 INFO L262 TraceCheckSpWp]: Trace formula consists of 3727 conjuncts, 2 conjunts are in the unsatisfiable core [2023-12-21 22:03:33,745 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-21 22:03:33,887 INFO L134 CoverageAnalysis]: Checked inductivity of 4250 backedges. 3079 proven. 0 refuted. 0 times theorem prover too weak. 1171 trivial. 0 not checked. [2023-12-21 22:03:33,887 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-12-21 22:03:33,887 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-12-21 22:03:33,887 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [192969895] [2023-12-21 22:03:33,888 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [192969895] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-21 22:03:33,888 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-21 22:03:33,888 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2023-12-21 22:03:33,888 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [406190655] [2023-12-21 22:03:33,888 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-21 22:03:33,890 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-12-21 22:03:33,890 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-12-21 22:03:33,891 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-12-21 22:03:33,892 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-12-21 22:03:33,892 INFO L87 Difference]: Start difference. First operand 348264 states and 352071 transitions. Second operand has 3 states, 3 states have (on average 885.6666666666666) internal successors, (2657), 3 states have internal predecessors, (2657), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-21 22:03:41,040 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-21 22:03:41,040 INFO L93 Difference]: Finished difference Result 742444 states and 750778 transitions. [2023-12-21 22:03:41,041 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-12-21 22:03:41,041 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 885.6666666666666) internal successors, (2657), 3 states have internal predecessors, (2657), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 3545 [2023-12-21 22:03:41,042 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-21 22:03:41,717 INFO L225 Difference]: With dead ends: 742444 [2023-12-21 22:03:41,717 INFO L226 Difference]: Without dead ends: 395808 [2023-12-21 22:03:41,851 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 3544 GetRequests, 3543 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 22:03:41,851 INFO L413 NwaCegarLoop]: 2788 mSDtfsCounter, 1706 mSDsluCounter, 228 mSDsCounter, 0 mSdLazyCounter, 4378 mSolverCounterSat, 466 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 4.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1706 SdHoareTripleChecker+Valid, 3016 SdHoareTripleChecker+Invalid, 4844 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 466 IncrementalHoareTripleChecker+Valid, 4378 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 5.2s IncrementalHoareTripleChecker+Time [2023-12-21 22:03:41,851 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1706 Valid, 3016 Invalid, 4844 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [466 Valid, 4378 Invalid, 0 Unknown, 0 Unchecked, 5.2s Time] [2023-12-21 22:03:42,226 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 395808 states. [2023-12-21 22:03:46,073 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 395808 to 389014. [2023-12-21 22:03:46,457 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 389014 states, 389013 states have (on average 1.0094007141149524) internal successors, (392670), 389013 states have internal predecessors, (392670), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-21 22:03:47,302 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 389014 states to 389014 states and 392670 transitions. [2023-12-21 22:03:47,302 INFO L78 Accepts]: Start accepts. Automaton has 389014 states and 392670 transitions. Word has length 3545 [2023-12-21 22:03:47,303 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-21 22:03:47,303 INFO L495 AbstractCegarLoop]: Abstraction has 389014 states and 392670 transitions. [2023-12-21 22:03:47,304 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 885.6666666666666) internal successors, (2657), 3 states have internal predecessors, (2657), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-21 22:03:47,304 INFO L276 IsEmpty]: Start isEmpty. Operand 389014 states and 392670 transitions. [2023-12-21 22:03:48,014 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 3569 [2023-12-21 22:03:48,014 INFO L187 NwaCegarLoop]: Found error trace [2023-12-21 22:03:48,015 INFO L195 NwaCegarLoop]: trace histogram [9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 5, 5, 5, 5, 5, 4, 4, 4, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 22:03:48,025 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 (44)] Forceful destruction successful, exit code 0 [2023-12-21 22:03:48,225 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 44 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.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 22:03:48,225 INFO L420 AbstractCegarLoop]: === Iteration 44 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-21 22:03:48,225 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-21 22:03:48,226 INFO L85 PathProgramCache]: Analyzing trace with hash 1994649725, now seen corresponding path program 1 times [2023-12-21 22:03:48,240 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-12-21 22:03:48,240 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1672762915] [2023-12-21 22:03:48,240 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-21 22:03:48,240 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 22:03:48,240 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2023-12-21 22:03:48,241 INFO L229 MonitoredProcess]: Starting monitored process 45 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 22:03:48,243 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 (45)] Waiting until timeout for monitored process [2023-12-21 22:03:49,323 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 22:03:49,342 INFO L262 TraceCheckSpWp]: Trace formula consists of 3763 conjuncts, 2 conjunts are in the unsatisfiable core [2023-12-21 22:03:49,362 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-21 22:03:49,614 INFO L134 CoverageAnalysis]: Checked inductivity of 5726 backedges. 3533 proven. 0 refuted. 0 times theorem prover too weak. 2193 trivial. 0 not checked. [2023-12-21 22:03:49,615 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-12-21 22:03:49,615 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-12-21 22:03:49,615 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1672762915] [2023-12-21 22:03:49,615 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1672762915] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-21 22:03:49,615 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-21 22:03:49,615 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2023-12-21 22:03:49,615 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [745646234] [2023-12-21 22:03:49,616 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-21 22:03:49,618 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-12-21 22:03:49,618 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-12-21 22:03:49,619 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-12-21 22:03:49,619 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-12-21 22:03:49,620 INFO L87 Difference]: Start difference. First operand 389014 states and 392670 transitions. Second operand has 3 states, 3 states have (on average 846.6666666666666) internal successors, (2540), 3 states have internal predecessors, (2540), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-21 22:03:57,036 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-21 22:03:57,036 INFO L93 Difference]: Finished difference Result 840932 states and 849604 transitions. [2023-12-21 22:03:57,037 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-12-21 22:03:57,037 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 846.6666666666666) internal successors, (2540), 3 states have internal predecessors, (2540), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 3568 [2023-12-21 22:03:57,038 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-21 22:03:58,173 INFO L225 Difference]: With dead ends: 840932 [2023-12-21 22:03:58,173 INFO L226 Difference]: Without dead ends: 441637 [2023-12-21 22:03:58,272 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 3567 GetRequests, 3566 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 22:03:58,273 INFO L413 NwaCegarLoop]: 2871 mSDtfsCounter, 1543 mSDsluCounter, 173 mSDsCounter, 0 mSdLazyCounter, 4392 mSolverCounterSat, 788 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 4.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1543 SdHoareTripleChecker+Valid, 3044 SdHoareTripleChecker+Invalid, 5180 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 788 IncrementalHoareTripleChecker+Valid, 4392 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 5.0s IncrementalHoareTripleChecker+Time [2023-12-21 22:03:58,273 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1543 Valid, 3044 Invalid, 5180 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [788 Valid, 4392 Invalid, 0 Unknown, 0 Unchecked, 5.0s Time] [2023-12-21 22:03:58,623 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 441637 states. [2023-12-21 22:04:02,283 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 441637 to 428040. [2023-12-21 22:04:02,526 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 428040 states, 428039 states have (on average 1.0079642275587037) internal successors, (431448), 428039 states have internal predecessors, (431448), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-21 22:04:03,869 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 428040 states to 428040 states and 431448 transitions. [2023-12-21 22:04:03,869 INFO L78 Accepts]: Start accepts. Automaton has 428040 states and 431448 transitions. Word has length 3568 [2023-12-21 22:04:03,870 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-21 22:04:03,870 INFO L495 AbstractCegarLoop]: Abstraction has 428040 states and 431448 transitions. [2023-12-21 22:04:03,871 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 846.6666666666666) internal successors, (2540), 3 states have internal predecessors, (2540), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-21 22:04:03,871 INFO L276 IsEmpty]: Start isEmpty. Operand 428040 states and 431448 transitions.