/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/seq-mthreaded-reduced/pals_lcr-var-start-time.4.2.ufo.UNBOUNDED.pals.c.v+lhb-reducer.c -------------------------------------------------------------------------------- This is Ultimate 0.2.4-tmp.fs.bitabs-eval-d9c3e40-m [2023-12-25 09:38:59,935 INFO L188 SettingsManager]: Resetting all preferences to default values... [2023-12-25 09:39:00,002 INFO L114 SettingsManager]: Loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/settings/default/automizer/svcomp-Reach-32bit-Automizer_Bitvector.epf [2023-12-25 09:39:00,005 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2023-12-25 09:39:00,006 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2023-12-25 09:39:00,032 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2023-12-25 09:39:00,033 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2023-12-25 09:39:00,033 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2023-12-25 09:39:00,034 INFO L151 SettingsManager]: Preferences of Boogie Preprocessor differ from their defaults: [2023-12-25 09:39:00,036 INFO L153 SettingsManager]: * Use memory slicer=true [2023-12-25 09:39:00,036 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2023-12-25 09:39:00,037 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2023-12-25 09:39:00,037 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2023-12-25 09:39:00,038 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2023-12-25 09:39:00,038 INFO L153 SettingsManager]: * Use SBE=true [2023-12-25 09:39:00,038 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2023-12-25 09:39:00,038 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2023-12-25 09:39:00,039 INFO L153 SettingsManager]: * sizeof long=4 [2023-12-25 09:39:00,039 INFO L153 SettingsManager]: * sizeof POINTER=4 [2023-12-25 09:39:00,040 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2023-12-25 09:39:00,040 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2023-12-25 09:39:00,040 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2023-12-25 09:39:00,040 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2023-12-25 09:39:00,040 INFO L153 SettingsManager]: * Adapt memory model on pointer casts if necessary=true [2023-12-25 09:39:00,041 INFO L153 SettingsManager]: * Use bitvectors instead of ints=true [2023-12-25 09:39:00,041 INFO L153 SettingsManager]: * Allow undefined functions=false [2023-12-25 09:39:00,041 INFO L153 SettingsManager]: * Memory model=HoenickeLindenmann_4ByteResolution [2023-12-25 09:39:00,041 INFO L153 SettingsManager]: * sizeof long double=12 [2023-12-25 09:39:00,041 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2023-12-25 09:39:00,041 INFO L153 SettingsManager]: * Use constant arrays=true [2023-12-25 09:39:00,042 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2023-12-25 09:39:00,042 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2023-12-25 09:39:00,042 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2023-12-25 09:39:00,042 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2023-12-25 09:39:00,042 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2023-12-25 09:39:00,043 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2023-12-25 09:39:00,043 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2023-12-25 09:39:00,043 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2023-12-25 09:39:00,043 INFO L153 SettingsManager]: * Trace refinement strategy=WOLF [2023-12-25 09:39:00,043 INFO L153 SettingsManager]: * Command for external solver=cvc4 --incremental --print-success --lang smt [2023-12-25 09:39:00,044 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2023-12-25 09:39:00,044 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2023-12-25 09:39:00,044 INFO L153 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2023-12-25 09:39:00,044 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2023-12-25 09:39:00,044 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2023-12-25 09:39:00,044 INFO L153 SettingsManager]: * Logic for external solver=AUFBV [2023-12-25 09:39:00,044 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release [2023-12-25 09:39:00,231 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2023-12-25 09:39:00,249 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2023-12-25 09:39:00,250 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2023-12-25 09:39:00,251 INFO L270 PluginConnector]: Initializing CDTParser... [2023-12-25 09:39:00,251 INFO L274 PluginConnector]: CDTParser initialized [2023-12-25 09:39:00,253 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/seq-mthreaded-reduced/pals_lcr-var-start-time.4.2.ufo.UNBOUNDED.pals.c.v+lhb-reducer.c [2023-12-25 09:39:01,271 INFO L533 CDTParser]: Created temporary CDT project at NULL [2023-12-25 09:39:01,552 INFO L384 CDTParser]: Found 1 translation units. [2023-12-25 09:39:01,553 INFO L180 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/seq-mthreaded-reduced/pals_lcr-var-start-time.4.2.ufo.UNBOUNDED.pals.c.v+lhb-reducer.c [2023-12-25 09:39:01,569 INFO L427 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/910ecb31a/6adf7bd64f254b2bb1457cd39e2ecff7/FLAGa537c0541 [2023-12-25 09:39:01,584 INFO L435 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/910ecb31a/6adf7bd64f254b2bb1457cd39e2ecff7 [2023-12-25 09:39:01,586 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2023-12-25 09:39:01,587 INFO L133 ToolchainWalker]: Walking toolchain with 5 elements. [2023-12-25 09:39:01,589 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2023-12-25 09:39:01,589 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2023-12-25 09:39:01,592 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2023-12-25 09:39:01,592 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 25.12 09:39:01" (1/1) ... [2023-12-25 09:39:01,593 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@36cc9a93 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.12 09:39:01, skipping insertion in model container [2023-12-25 09:39:01,593 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 25.12 09:39:01" (1/1) ... [2023-12-25 09:39:01,677 INFO L177 MainTranslator]: Built tables and reachable declarations [2023-12-25 09:39:01,916 WARN L239 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/trunk/examples/svcomp/seq-mthreaded-reduced/pals_lcr-var-start-time.4.2.ufo.UNBOUNDED.pals.c.v+lhb-reducer.c[9988,10001] [2023-12-25 09:39:01,993 WARN L239 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/trunk/examples/svcomp/seq-mthreaded-reduced/pals_lcr-var-start-time.4.2.ufo.UNBOUNDED.pals.c.v+lhb-reducer.c[24517,24530] [2023-12-25 09:39:02,144 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-12-25 09:39:02,158 INFO L202 MainTranslator]: Completed pre-run [2023-12-25 09:39:02,198 WARN L239 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/trunk/examples/svcomp/seq-mthreaded-reduced/pals_lcr-var-start-time.4.2.ufo.UNBOUNDED.pals.c.v+lhb-reducer.c[9988,10001] [2023-12-25 09:39:02,238 WARN L239 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/trunk/examples/svcomp/seq-mthreaded-reduced/pals_lcr-var-start-time.4.2.ufo.UNBOUNDED.pals.c.v+lhb-reducer.c[24517,24530] [2023-12-25 09:39:02,317 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-12-25 09:39:02,329 INFO L206 MainTranslator]: Completed translation [2023-12-25 09:39:02,330 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.12 09:39:02 WrapperNode [2023-12-25 09:39:02,330 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2023-12-25 09:39:02,330 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2023-12-25 09:39:02,330 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2023-12-25 09:39:02,331 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2023-12-25 09:39:02,335 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.12 09:39:02" (1/1) ... [2023-12-25 09:39:02,357 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.12 09:39:02" (1/1) ... [2023-12-25 09:39:02,419 INFO L138 Inliner]: procedures = 24, calls = 7, calls flagged for inlining = 2, calls inlined = 2, statements flattened = 3628 [2023-12-25 09:39:02,420 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2023-12-25 09:39:02,420 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2023-12-25 09:39:02,420 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2023-12-25 09:39:02,420 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2023-12-25 09:39:02,428 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.12 09:39:02" (1/1) ... [2023-12-25 09:39:02,428 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.12 09:39:02" (1/1) ... [2023-12-25 09:39:02,443 INFO L184 PluginConnector]: Executing the observer MemorySlicer from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.12 09:39:02" (1/1) ... [2023-12-25 09:39:02,477 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]. [2023-12-25 09:39:02,477 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.12 09:39:02" (1/1) ... [2023-12-25 09:39:02,478 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.12 09:39:02" (1/1) ... [2023-12-25 09:39:02,502 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.12 09:39:02" (1/1) ... [2023-12-25 09:39:02,529 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.12 09:39:02" (1/1) ... [2023-12-25 09:39:02,536 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.12 09:39:02" (1/1) ... [2023-12-25 09:39:02,558 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.12 09:39:02" (1/1) ... [2023-12-25 09:39:02,568 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2023-12-25 09:39:02,569 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2023-12-25 09:39:02,569 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2023-12-25 09:39:02,569 INFO L274 PluginConnector]: RCFGBuilder initialized [2023-12-25 09:39:02,570 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.12 09:39:02" (1/1) ... [2023-12-25 09:39:02,576 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2023-12-25 09:39:02,587 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-12-25 09:39:02,601 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) [2023-12-25 09:39:02,611 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 [2023-12-25 09:39:02,629 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2023-12-25 09:39:02,629 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE1#0 [2023-12-25 09:39:02,630 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2023-12-25 09:39:02,630 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2023-12-25 09:39:02,799 INFO L241 CfgBuilder]: Building ICFG [2023-12-25 09:39:02,801 INFO L267 CfgBuilder]: Building CFG for each procedure with an implementation [2023-12-25 09:39:04,295 INFO L282 CfgBuilder]: Performing block encoding [2023-12-25 09:39:04,326 INFO L304 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2023-12-25 09:39:04,326 INFO L309 CfgBuilder]: Removed 0 assume(true) statements. [2023-12-25 09:39:04,326 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 25.12 09:39:04 BoogieIcfgContainer [2023-12-25 09:39:04,326 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2023-12-25 09:39:04,328 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2023-12-25 09:39:04,328 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2023-12-25 09:39:04,330 INFO L274 PluginConnector]: TraceAbstraction initialized [2023-12-25 09:39:04,330 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 25.12 09:39:01" (1/3) ... [2023-12-25 09:39:04,330 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@60fa6b03 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 25.12 09:39:04, skipping insertion in model container [2023-12-25 09:39:04,330 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.12 09:39:02" (2/3) ... [2023-12-25 09:39:04,331 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@60fa6b03 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 25.12 09:39:04, skipping insertion in model container [2023-12-25 09:39:04,331 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 25.12 09:39:04" (3/3) ... [2023-12-25 09:39:04,331 INFO L112 eAbstractionObserver]: Analyzing ICFG pals_lcr-var-start-time.4.2.ufo.UNBOUNDED.pals.c.v+lhb-reducer.c [2023-12-25 09:39:04,343 INFO L204 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2023-12-25 09:39:04,343 INFO L163 ceAbstractionStarter]: Applying trace abstraction to program that has 2 error locations. [2023-12-25 09:39:04,379 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2023-12-25 09:39:04,384 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;@72cb9d8a, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2023-12-25 09:39:04,384 INFO L358 AbstractCegarLoop]: Starting to check reachability of 2 error locations. [2023-12-25 09:39:04,391 INFO L276 IsEmpty]: Start isEmpty. Operand has 700 states, 697 states have (on average 1.787661406025825) internal successors, (1246), 699 states have internal predecessors, (1246), 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) [2023-12-25 09:39:04,412 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 62 [2023-12-25 09:39:04,412 INFO L187 NwaCegarLoop]: Found error trace [2023-12-25 09:39:04,413 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] [2023-12-25 09:39:04,414 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-25 09:39:04,418 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-25 09:39:04,418 INFO L85 PathProgramCache]: Analyzing trace with hash 1229301387, now seen corresponding path program 1 times [2023-12-25 09:39:04,429 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-12-25 09:39:04,429 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1233766503] [2023-12-25 09:39:04,429 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-25 09:39:04,430 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 [2023-12-25 09:39:04,430 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2023-12-25 09:39:04,437 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) [2023-12-25 09:39:04,442 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 [2023-12-25 09:39:04,650 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-25 09:39:04,667 INFO L262 TraceCheckSpWp]: Trace formula consists of 224 conjuncts, 4 conjunts are in the unsatisfiable core [2023-12-25 09:39:04,672 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-25 09:39:04,913 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-12-25 09:39:04,913 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-12-25 09:39:04,914 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-12-25 09:39:04,914 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1233766503] [2023-12-25 09:39:04,914 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1233766503] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-25 09:39:04,914 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-25 09:39:04,915 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2023-12-25 09:39:04,916 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1950397068] [2023-12-25 09:39:04,916 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-25 09:39:04,919 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2023-12-25 09:39:04,919 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-12-25 09:39:04,936 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2023-12-25 09:39:04,936 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2023-12-25 09:39:04,938 INFO L87 Difference]: Start difference. First operand has 700 states, 697 states have (on average 1.787661406025825) internal successors, (1246), 699 states have internal predecessors, (1246), 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) Second operand has 5 states, 5 states have (on average 12.2) internal successors, (61), 4 states have internal predecessors, (61), 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) [2023-12-25 09:39:05,601 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-25 09:39:05,602 INFO L93 Difference]: Finished difference Result 1207 states and 2109 transitions. [2023-12-25 09:39:05,603 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2023-12-25 09:39:05,604 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 12.2) internal successors, (61), 4 states have internal predecessors, (61), 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 61 [2023-12-25 09:39:05,604 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-25 09:39:05,613 INFO L225 Difference]: With dead ends: 1207 [2023-12-25 09:39:05,613 INFO L226 Difference]: Without dead ends: 692 [2023-12-25 09:39:05,617 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 61 GetRequests, 57 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=14, Invalid=16, Unknown=0, NotChecked=0, Total=30 [2023-12-25 09:39:05,619 INFO L413 NwaCegarLoop]: 612 mSDtfsCounter, 3289 mSDsluCounter, 172 mSDsCounter, 0 mSdLazyCounter, 461 mSolverCounterSat, 10 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 3289 SdHoareTripleChecker+Valid, 784 SdHoareTripleChecker+Invalid, 471 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 10 IncrementalHoareTripleChecker+Valid, 461 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.6s IncrementalHoareTripleChecker+Time [2023-12-25 09:39:05,619 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [3289 Valid, 784 Invalid, 471 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [10 Valid, 461 Invalid, 0 Unknown, 0 Unchecked, 0.6s Time] [2023-12-25 09:39:05,631 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 692 states. [2023-12-25 09:39:05,667 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 692 to 690. [2023-12-25 09:39:05,668 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 690 states, 688 states have (on average 1.3880813953488371) internal successors, (955), 689 states have internal predecessors, (955), 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) [2023-12-25 09:39:05,669 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 690 states to 690 states and 955 transitions. [2023-12-25 09:39:05,670 INFO L78 Accepts]: Start accepts. Automaton has 690 states and 955 transitions. Word has length 61 [2023-12-25 09:39:05,670 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-25 09:39:05,671 INFO L495 AbstractCegarLoop]: Abstraction has 690 states and 955 transitions. [2023-12-25 09:39:05,671 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 12.2) internal successors, (61), 4 states have internal predecessors, (61), 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) [2023-12-25 09:39:05,671 INFO L276 IsEmpty]: Start isEmpty. Operand 690 states and 955 transitions. [2023-12-25 09:39:05,672 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 63 [2023-12-25 09:39:05,672 INFO L187 NwaCegarLoop]: Found error trace [2023-12-25 09:39:05,672 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] [2023-12-25 09:39:05,683 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 [2023-12-25 09:39:05,876 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 [2023-12-25 09:39:05,876 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-25 09:39:05,878 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-25 09:39:05,878 INFO L85 PathProgramCache]: Analyzing trace with hash -142521048, now seen corresponding path program 1 times [2023-12-25 09:39:05,879 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-12-25 09:39:05,879 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [836824898] [2023-12-25 09:39:05,879 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-25 09:39:05,880 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 [2023-12-25 09:39:05,881 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2023-12-25 09:39:05,882 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) [2023-12-25 09:39:05,883 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (3)] Waiting until timeout for monitored process [2023-12-25 09:39:06,025 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-25 09:39:06,028 INFO L262 TraceCheckSpWp]: Trace formula consists of 222 conjuncts, 5 conjunts are in the unsatisfiable core [2023-12-25 09:39:06,031 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-25 09:39:06,135 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-12-25 09:39:06,135 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-12-25 09:39:06,136 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-12-25 09:39:06,138 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [836824898] [2023-12-25 09:39:06,139 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [836824898] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-25 09:39:06,139 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-25 09:39:06,139 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2023-12-25 09:39:06,139 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [365321394] [2023-12-25 09:39:06,139 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-25 09:39:06,140 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2023-12-25 09:39:06,140 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-12-25 09:39:06,141 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2023-12-25 09:39:06,141 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=15, Unknown=0, NotChecked=0, Total=30 [2023-12-25 09:39:06,141 INFO L87 Difference]: Start difference. First operand 690 states and 955 transitions. Second operand has 6 states, 6 states have (on average 10.333333333333334) internal successors, (62), 6 states have internal predecessors, (62), 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) [2023-12-25 09:39:06,399 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-25 09:39:06,399 INFO L93 Difference]: Finished difference Result 1816 states and 2596 transitions. [2023-12-25 09:39:06,399 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2023-12-25 09:39:06,399 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 10.333333333333334) internal successors, (62), 6 states have internal predecessors, (62), 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 62 [2023-12-25 09:39:06,400 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-25 09:39:06,403 INFO L225 Difference]: With dead ends: 1816 [2023-12-25 09:39:06,403 INFO L226 Difference]: Without dead ends: 1419 [2023-12-25 09:39:06,404 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 61 GetRequests, 57 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=15, Invalid=15, Unknown=0, NotChecked=0, Total=30 [2023-12-25 09:39:06,405 INFO L413 NwaCegarLoop]: 884 mSDtfsCounter, 2467 mSDsluCounter, 896 mSDsCounter, 0 mSdLazyCounter, 181 mSolverCounterSat, 100 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2467 SdHoareTripleChecker+Valid, 1780 SdHoareTripleChecker+Invalid, 281 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 100 IncrementalHoareTripleChecker+Valid, 181 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2023-12-25 09:39:06,405 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [2467 Valid, 1780 Invalid, 281 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [100 Valid, 181 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2023-12-25 09:39:06,406 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1419 states. [2023-12-25 09:39:06,429 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1419 to 1409. [2023-12-25 09:39:06,431 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1409 states, 1407 states have (on average 1.412224591329069) internal successors, (1987), 1408 states have internal predecessors, (1987), 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) [2023-12-25 09:39:06,433 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1409 states to 1409 states and 1987 transitions. [2023-12-25 09:39:06,434 INFO L78 Accepts]: Start accepts. Automaton has 1409 states and 1987 transitions. Word has length 62 [2023-12-25 09:39:06,434 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-25 09:39:06,434 INFO L495 AbstractCegarLoop]: Abstraction has 1409 states and 1987 transitions. [2023-12-25 09:39:06,434 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 10.333333333333334) internal successors, (62), 6 states have internal predecessors, (62), 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) [2023-12-25 09:39:06,434 INFO L276 IsEmpty]: Start isEmpty. Operand 1409 states and 1987 transitions. [2023-12-25 09:39:06,439 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 63 [2023-12-25 09:39:06,439 INFO L187 NwaCegarLoop]: Found error trace [2023-12-25 09:39:06,439 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] [2023-12-25 09:39:06,443 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 [2023-12-25 09:39:06,639 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 [2023-12-25 09:39:06,640 INFO L420 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-25 09:39:06,641 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-25 09:39:06,641 INFO L85 PathProgramCache]: Analyzing trace with hash -1850974929, now seen corresponding path program 1 times [2023-12-25 09:39:06,641 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-12-25 09:39:06,641 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1246047106] [2023-12-25 09:39:06,641 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-25 09:39:06,642 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 [2023-12-25 09:39:06,642 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2023-12-25 09:39:06,643 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) [2023-12-25 09:39:06,676 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 [2023-12-25 09:39:06,785 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-25 09:39:06,787 INFO L262 TraceCheckSpWp]: Trace formula consists of 224 conjuncts, 4 conjunts are in the unsatisfiable core [2023-12-25 09:39:06,793 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-25 09:39:06,953 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-12-25 09:39:06,954 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-12-25 09:39:06,954 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-12-25 09:39:06,954 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1246047106] [2023-12-25 09:39:06,954 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1246047106] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-25 09:39:06,954 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-25 09:39:06,954 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2023-12-25 09:39:06,954 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [398523544] [2023-12-25 09:39:06,954 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-25 09:39:06,955 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2023-12-25 09:39:06,955 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-12-25 09:39:06,955 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2023-12-25 09:39:06,955 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2023-12-25 09:39:06,955 INFO L87 Difference]: Start difference. First operand 1409 states and 1987 transitions. Second operand has 5 states, 5 states have (on average 12.4) internal successors, (62), 4 states have internal predecessors, (62), 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) [2023-12-25 09:39:07,342 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-25 09:39:07,342 INFO L93 Difference]: Finished difference Result 3144 states and 4553 transitions. [2023-12-25 09:39:07,343 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2023-12-25 09:39:07,344 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 12.4) internal successors, (62), 4 states have internal predecessors, (62), 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 62 [2023-12-25 09:39:07,344 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-25 09:39:07,349 INFO L225 Difference]: With dead ends: 3144 [2023-12-25 09:39:07,349 INFO L226 Difference]: Without dead ends: 1988 [2023-12-25 09:39:07,350 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 62 GetRequests, 58 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=14, Invalid=16, Unknown=0, NotChecked=0, Total=30 [2023-12-25 09:39:07,351 INFO L413 NwaCegarLoop]: 369 mSDtfsCounter, 2222 mSDsluCounter, 143 mSDsCounter, 0 mSdLazyCounter, 356 mSolverCounterSat, 16 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2222 SdHoareTripleChecker+Valid, 512 SdHoareTripleChecker+Invalid, 372 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 16 IncrementalHoareTripleChecker+Valid, 356 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.4s IncrementalHoareTripleChecker+Time [2023-12-25 09:39:07,351 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [2222 Valid, 512 Invalid, 372 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [16 Valid, 356 Invalid, 0 Unknown, 0 Unchecked, 0.4s Time] [2023-12-25 09:39:07,353 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1988 states. [2023-12-25 09:39:07,374 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1988 to 1984. [2023-12-25 09:39:07,377 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1984 states, 1982 states have (on average 1.441473259334006) internal successors, (2857), 1983 states have internal predecessors, (2857), 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) [2023-12-25 09:39:07,381 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1984 states to 1984 states and 2857 transitions. [2023-12-25 09:39:07,382 INFO L78 Accepts]: Start accepts. Automaton has 1984 states and 2857 transitions. Word has length 62 [2023-12-25 09:39:07,383 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-25 09:39:07,383 INFO L495 AbstractCegarLoop]: Abstraction has 1984 states and 2857 transitions. [2023-12-25 09:39:07,383 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 12.4) internal successors, (62), 4 states have internal predecessors, (62), 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) [2023-12-25 09:39:07,383 INFO L276 IsEmpty]: Start isEmpty. Operand 1984 states and 2857 transitions. [2023-12-25 09:39:07,386 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 64 [2023-12-25 09:39:07,386 INFO L187 NwaCegarLoop]: Found error trace [2023-12-25 09:39:07,386 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] [2023-12-25 09:39:07,391 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (4)] Ended with exit code 0 [2023-12-25 09:39:07,589 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 [2023-12-25 09:39:07,589 INFO L420 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-25 09:39:07,590 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-25 09:39:07,590 INFO L85 PathProgramCache]: Analyzing trace with hash -1168224568, now seen corresponding path program 1 times [2023-12-25 09:39:07,590 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-12-25 09:39:07,590 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1424537159] [2023-12-25 09:39:07,590 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-25 09:39:07,590 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 [2023-12-25 09:39:07,591 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2023-12-25 09:39:07,591 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) [2023-12-25 09:39:07,592 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 [2023-12-25 09:39:07,730 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-25 09:39:07,733 INFO L262 TraceCheckSpWp]: Trace formula consists of 225 conjuncts, 5 conjunts are in the unsatisfiable core [2023-12-25 09:39:07,734 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-25 09:39:07,830 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-12-25 09:39:07,830 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-12-25 09:39:07,830 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-12-25 09:39:07,830 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1424537159] [2023-12-25 09:39:07,830 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1424537159] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-25 09:39:07,831 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-25 09:39:07,831 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2023-12-25 09:39:07,831 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [452161584] [2023-12-25 09:39:07,831 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-25 09:39:07,831 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2023-12-25 09:39:07,831 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-12-25 09:39:07,832 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2023-12-25 09:39:07,832 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=18, Unknown=0, NotChecked=0, Total=30 [2023-12-25 09:39:07,832 INFO L87 Difference]: Start difference. First operand 1984 states and 2857 transitions. Second operand has 6 states, 6 states have (on average 10.5) internal successors, (63), 5 states have internal predecessors, (63), 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) [2023-12-25 09:39:08,343 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-25 09:39:08,343 INFO L93 Difference]: Finished difference Result 6857 states and 10178 transitions. [2023-12-25 09:39:08,344 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2023-12-25 09:39:08,344 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 10.5) internal successors, (63), 5 states have internal predecessors, (63), 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 63 [2023-12-25 09:39:08,344 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-25 09:39:08,358 INFO L225 Difference]: With dead ends: 6857 [2023-12-25 09:39:08,358 INFO L226 Difference]: Without dead ends: 5335 [2023-12-25 09:39:08,361 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 66 GetRequests, 58 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 5 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=36, Invalid=54, Unknown=0, NotChecked=0, Total=90 [2023-12-25 09:39:08,362 INFO L413 NwaCegarLoop]: 391 mSDtfsCounter, 3093 mSDsluCounter, 542 mSDsCounter, 0 mSdLazyCounter, 584 mSolverCounterSat, 105 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 3093 SdHoareTripleChecker+Valid, 933 SdHoareTripleChecker+Invalid, 689 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 105 IncrementalHoareTripleChecker+Valid, 584 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.4s IncrementalHoareTripleChecker+Time [2023-12-25 09:39:08,362 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [3093 Valid, 933 Invalid, 689 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [105 Valid, 584 Invalid, 0 Unknown, 0 Unchecked, 0.4s Time] [2023-12-25 09:39:08,366 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 5335 states. [2023-12-25 09:39:08,410 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 5335 to 1996. [2023-12-25 09:39:08,412 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1996 states, 1994 states have (on average 1.4307923771313942) internal successors, (2853), 1995 states have internal predecessors, (2853), 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) [2023-12-25 09:39:08,416 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1996 states to 1996 states and 2853 transitions. [2023-12-25 09:39:08,416 INFO L78 Accepts]: Start accepts. Automaton has 1996 states and 2853 transitions. Word has length 63 [2023-12-25 09:39:08,417 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-25 09:39:08,417 INFO L495 AbstractCegarLoop]: Abstraction has 1996 states and 2853 transitions. [2023-12-25 09:39:08,417 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 10.5) internal successors, (63), 5 states have internal predecessors, (63), 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) [2023-12-25 09:39:08,417 INFO L276 IsEmpty]: Start isEmpty. Operand 1996 states and 2853 transitions. [2023-12-25 09:39:08,419 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 65 [2023-12-25 09:39:08,419 INFO L187 NwaCegarLoop]: Found error trace [2023-12-25 09:39:08,419 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] [2023-12-25 09:39:08,424 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 [2023-12-25 09:39:08,622 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 [2023-12-25 09:39:08,622 INFO L420 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-25 09:39:08,622 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-25 09:39:08,623 INFO L85 PathProgramCache]: Analyzing trace with hash -106120100, now seen corresponding path program 1 times [2023-12-25 09:39:08,623 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-12-25 09:39:08,623 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1801245192] [2023-12-25 09:39:08,623 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-25 09:39:08,623 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 [2023-12-25 09:39:08,623 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2023-12-25 09:39:08,624 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) [2023-12-25 09:39:08,658 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 [2023-12-25 09:39:08,776 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-25 09:39:08,778 INFO L262 TraceCheckSpWp]: Trace formula consists of 225 conjuncts, 5 conjunts are in the unsatisfiable core [2023-12-25 09:39:08,781 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-25 09:39:08,891 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-12-25 09:39:08,891 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-12-25 09:39:08,891 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-12-25 09:39:08,891 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1801245192] [2023-12-25 09:39:08,891 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1801245192] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-25 09:39:08,891 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-25 09:39:08,891 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2023-12-25 09:39:08,891 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1723405778] [2023-12-25 09:39:08,891 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-25 09:39:08,892 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2023-12-25 09:39:08,892 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-12-25 09:39:08,892 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2023-12-25 09:39:08,892 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=18, Unknown=0, NotChecked=0, Total=30 [2023-12-25 09:39:08,892 INFO L87 Difference]: Start difference. First operand 1996 states and 2853 transitions. Second operand has 6 states, 6 states have (on average 10.666666666666666) internal successors, (64), 5 states have internal predecessors, (64), 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) [2023-12-25 09:39:09,440 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-25 09:39:09,440 INFO L93 Difference]: Finished difference Result 8956 states and 13343 transitions. [2023-12-25 09:39:09,440 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2023-12-25 09:39:09,440 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 10.666666666666666) internal successors, (64), 5 states have internal predecessors, (64), 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 64 [2023-12-25 09:39:09,441 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-25 09:39:09,458 INFO L225 Difference]: With dead ends: 8956 [2023-12-25 09:39:09,458 INFO L226 Difference]: Without dead ends: 7682 [2023-12-25 09:39:09,461 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 67 GetRequests, 59 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 5 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=36, Invalid=54, Unknown=0, NotChecked=0, Total=90 [2023-12-25 09:39:09,461 INFO L413 NwaCegarLoop]: 400 mSDtfsCounter, 2403 mSDsluCounter, 651 mSDsCounter, 0 mSdLazyCounter, 653 mSolverCounterSat, 99 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2403 SdHoareTripleChecker+Valid, 1051 SdHoareTripleChecker+Invalid, 752 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 99 IncrementalHoareTripleChecker+Valid, 653 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.5s IncrementalHoareTripleChecker+Time [2023-12-25 09:39:09,462 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [2403 Valid, 1051 Invalid, 752 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [99 Valid, 653 Invalid, 0 Unknown, 0 Unchecked, 0.5s Time] [2023-12-25 09:39:09,466 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 7682 states. [2023-12-25 09:39:09,509 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 7682 to 2037. [2023-12-25 09:39:09,511 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2037 states, 2035 states have (on average 1.4201474201474202) internal successors, (2890), 2036 states have internal predecessors, (2890), 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) [2023-12-25 09:39:09,514 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2037 states to 2037 states and 2890 transitions. [2023-12-25 09:39:09,514 INFO L78 Accepts]: Start accepts. Automaton has 2037 states and 2890 transitions. Word has length 64 [2023-12-25 09:39:09,514 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-25 09:39:09,514 INFO L495 AbstractCegarLoop]: Abstraction has 2037 states and 2890 transitions. [2023-12-25 09:39:09,514 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 10.666666666666666) internal successors, (64), 5 states have internal predecessors, (64), 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) [2023-12-25 09:39:09,515 INFO L276 IsEmpty]: Start isEmpty. Operand 2037 states and 2890 transitions. [2023-12-25 09:39:09,516 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 65 [2023-12-25 09:39:09,516 INFO L187 NwaCegarLoop]: Found error trace [2023-12-25 09:39:09,516 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] [2023-12-25 09:39:09,519 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 [2023-12-25 09:39:09,719 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 [2023-12-25 09:39:09,721 INFO L420 AbstractCegarLoop]: === Iteration 6 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-25 09:39:09,721 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-25 09:39:09,722 INFO L85 PathProgramCache]: Analyzing trace with hash -861098916, now seen corresponding path program 1 times [2023-12-25 09:39:09,722 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-12-25 09:39:09,722 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1058729911] [2023-12-25 09:39:09,722 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-25 09:39:09,722 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 [2023-12-25 09:39:09,722 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2023-12-25 09:39:09,723 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) [2023-12-25 09:39:09,724 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (7)] Waiting until timeout for monitored process [2023-12-25 09:39:09,836 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-25 09:39:09,838 INFO L262 TraceCheckSpWp]: Trace formula consists of 225 conjuncts, 2 conjunts are in the unsatisfiable core [2023-12-25 09:39:09,839 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-25 09:39:09,859 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-12-25 09:39:09,859 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-12-25 09:39:09,859 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-12-25 09:39:09,859 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1058729911] [2023-12-25 09:39:09,860 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1058729911] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-25 09:39:09,860 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-25 09:39:09,860 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2023-12-25 09:39:09,860 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2131011737] [2023-12-25 09:39:09,860 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-25 09:39:09,860 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-12-25 09:39:09,860 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-12-25 09:39:09,860 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-12-25 09:39:09,861 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-12-25 09:39:09,861 INFO L87 Difference]: Start difference. First operand 2037 states and 2890 transitions. Second operand has 3 states, 3 states have (on average 21.333333333333332) internal successors, (64), 3 states have internal predecessors, (64), 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) [2023-12-25 09:39:09,901 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-25 09:39:09,902 INFO L93 Difference]: Finished difference Result 3220 states and 4622 transitions. [2023-12-25 09:39:09,902 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-12-25 09:39:09,902 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 21.333333333333332) internal successors, (64), 3 states have internal predecessors, (64), 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 64 [2023-12-25 09:39:09,903 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-25 09:39:09,908 INFO L225 Difference]: With dead ends: 3220 [2023-12-25 09:39:09,908 INFO L226 Difference]: Without dead ends: 2411 [2023-12-25 09:39:09,909 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 63 GetRequests, 62 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-12-25 09:39:09,910 INFO L413 NwaCegarLoop]: 645 mSDtfsCounter, 376 mSDsluCounter, 449 mSDsCounter, 0 mSdLazyCounter, 19 mSolverCounterSat, 14 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 376 SdHoareTripleChecker+Valid, 1094 SdHoareTripleChecker+Invalid, 33 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 14 IncrementalHoareTripleChecker+Valid, 19 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2023-12-25 09:39:09,910 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [376 Valid, 1094 Invalid, 33 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [14 Valid, 19 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2023-12-25 09:39:09,913 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2411 states. [2023-12-25 09:39:09,940 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2411 to 2391. [2023-12-25 09:39:09,944 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2391 states, 2389 states have (on average 1.4081205525324403) internal successors, (3364), 2390 states have internal predecessors, (3364), 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) [2023-12-25 09:39:09,947 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2391 states to 2391 states and 3364 transitions. [2023-12-25 09:39:09,947 INFO L78 Accepts]: Start accepts. Automaton has 2391 states and 3364 transitions. Word has length 64 [2023-12-25 09:39:09,947 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-25 09:39:09,947 INFO L495 AbstractCegarLoop]: Abstraction has 2391 states and 3364 transitions. [2023-12-25 09:39:09,947 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 21.333333333333332) internal successors, (64), 3 states have internal predecessors, (64), 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) [2023-12-25 09:39:09,948 INFO L276 IsEmpty]: Start isEmpty. Operand 2391 states and 3364 transitions. [2023-12-25 09:39:09,949 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 65 [2023-12-25 09:39:09,949 INFO L187 NwaCegarLoop]: Found error trace [2023-12-25 09:39:09,949 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] [2023-12-25 09:39:09,958 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (7)] Forceful destruction successful, exit code 0 [2023-12-25 09:39:10,152 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 [2023-12-25 09:39:10,155 INFO L420 AbstractCegarLoop]: === Iteration 7 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-25 09:39:10,155 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-25 09:39:10,155 INFO L85 PathProgramCache]: Analyzing trace with hash -25139396, now seen corresponding path program 1 times [2023-12-25 09:39:10,155 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-12-25 09:39:10,156 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1046371259] [2023-12-25 09:39:10,156 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-25 09:39:10,156 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 [2023-12-25 09:39:10,156 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2023-12-25 09:39:10,157 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) [2023-12-25 09:39:10,158 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 [2023-12-25 09:39:10,274 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-25 09:39:10,276 INFO L262 TraceCheckSpWp]: Trace formula consists of 224 conjuncts, 4 conjunts are in the unsatisfiable core [2023-12-25 09:39:10,278 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-25 09:39:10,474 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-12-25 09:39:10,474 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-12-25 09:39:10,475 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-12-25 09:39:10,475 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1046371259] [2023-12-25 09:39:10,475 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1046371259] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-25 09:39:10,475 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-25 09:39:10,475 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2023-12-25 09:39:10,475 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1877646290] [2023-12-25 09:39:10,475 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-25 09:39:10,475 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2023-12-25 09:39:10,476 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-12-25 09:39:10,476 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2023-12-25 09:39:10,476 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2023-12-25 09:39:10,476 INFO L87 Difference]: Start difference. First operand 2391 states and 3364 transitions. Second operand has 5 states, 5 states have (on average 12.8) internal successors, (64), 4 states have internal predecessors, (64), 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) [2023-12-25 09:39:10,925 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-25 09:39:10,925 INFO L93 Difference]: Finished difference Result 5858 states and 8359 transitions. [2023-12-25 09:39:10,926 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2023-12-25 09:39:10,929 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 12.8) internal successors, (64), 4 states have internal predecessors, (64), 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 64 [2023-12-25 09:39:10,929 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-25 09:39:10,940 INFO L225 Difference]: With dead ends: 5858 [2023-12-25 09:39:10,940 INFO L226 Difference]: Without dead ends: 3710 [2023-12-25 09:39:10,942 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 64 GetRequests, 60 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=14, Invalid=16, Unknown=0, NotChecked=0, Total=30 [2023-12-25 09:39:10,943 INFO L413 NwaCegarLoop]: 348 mSDtfsCounter, 1450 mSDsluCounter, 120 mSDsCounter, 0 mSdLazyCounter, 333 mSolverCounterSat, 34 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1450 SdHoareTripleChecker+Valid, 468 SdHoareTripleChecker+Invalid, 367 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 34 IncrementalHoareTripleChecker+Valid, 333 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.4s IncrementalHoareTripleChecker+Time [2023-12-25 09:39:10,943 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1450 Valid, 468 Invalid, 367 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [34 Valid, 333 Invalid, 0 Unknown, 0 Unchecked, 0.4s Time] [2023-12-25 09:39:10,946 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3710 states. [2023-12-25 09:39:10,986 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3710 to 3706. [2023-12-25 09:39:10,990 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3706 states, 3704 states have (on average 1.4195464362850971) internal successors, (5258), 3705 states have internal predecessors, (5258), 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) [2023-12-25 09:39:10,997 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3706 states to 3706 states and 5258 transitions. [2023-12-25 09:39:10,997 INFO L78 Accepts]: Start accepts. Automaton has 3706 states and 5258 transitions. Word has length 64 [2023-12-25 09:39:10,997 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-25 09:39:10,997 INFO L495 AbstractCegarLoop]: Abstraction has 3706 states and 5258 transitions. [2023-12-25 09:39:10,998 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 12.8) internal successors, (64), 4 states have internal predecessors, (64), 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) [2023-12-25 09:39:10,998 INFO L276 IsEmpty]: Start isEmpty. Operand 3706 states and 5258 transitions. [2023-12-25 09:39:11,000 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 65 [2023-12-25 09:39:11,000 INFO L187 NwaCegarLoop]: Found error trace [2023-12-25 09:39:11,000 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] [2023-12-25 09:39:11,016 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 [2023-12-25 09:39:11,203 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 [2023-12-25 09:39:11,205 INFO L420 AbstractCegarLoop]: === Iteration 8 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-25 09:39:11,206 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-25 09:39:11,206 INFO L85 PathProgramCache]: Analyzing trace with hash -791617073, now seen corresponding path program 1 times [2023-12-25 09:39:11,206 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-12-25 09:39:11,206 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1128304187] [2023-12-25 09:39:11,206 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-25 09:39:11,206 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 [2023-12-25 09:39:11,207 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2023-12-25 09:39:11,207 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) [2023-12-25 09:39:11,211 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 [2023-12-25 09:39:11,322 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-25 09:39:11,325 INFO L262 TraceCheckSpWp]: Trace formula consists of 225 conjuncts, 5 conjunts are in the unsatisfiable core [2023-12-25 09:39:11,327 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-25 09:39:11,424 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-12-25 09:39:11,424 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-12-25 09:39:11,424 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-12-25 09:39:11,424 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1128304187] [2023-12-25 09:39:11,424 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1128304187] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-25 09:39:11,424 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-25 09:39:11,425 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2023-12-25 09:39:11,425 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1519555129] [2023-12-25 09:39:11,425 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-25 09:39:11,425 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2023-12-25 09:39:11,425 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-12-25 09:39:11,426 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2023-12-25 09:39:11,426 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=18, Unknown=0, NotChecked=0, Total=30 [2023-12-25 09:39:11,426 INFO L87 Difference]: Start difference. First operand 3706 states and 5258 transitions. Second operand has 6 states, 6 states have (on average 10.666666666666666) internal successors, (64), 5 states have internal predecessors, (64), 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) [2023-12-25 09:39:11,931 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-25 09:39:11,931 INFO L93 Difference]: Finished difference Result 16648 states and 24322 transitions. [2023-12-25 09:39:11,932 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2023-12-25 09:39:11,932 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 10.666666666666666) internal successors, (64), 5 states have internal predecessors, (64), 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 64 [2023-12-25 09:39:11,932 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-25 09:39:11,961 INFO L225 Difference]: With dead ends: 16648 [2023-12-25 09:39:11,961 INFO L226 Difference]: Without dead ends: 14029 [2023-12-25 09:39:11,968 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 67 GetRequests, 59 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 4 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=36, Invalid=54, Unknown=0, NotChecked=0, Total=90 [2023-12-25 09:39:11,969 INFO L413 NwaCegarLoop]: 405 mSDtfsCounter, 3029 mSDsluCounter, 642 mSDsCounter, 0 mSdLazyCounter, 602 mSolverCounterSat, 101 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 3029 SdHoareTripleChecker+Valid, 1047 SdHoareTripleChecker+Invalid, 703 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 101 IncrementalHoareTripleChecker+Valid, 602 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.4s IncrementalHoareTripleChecker+Time [2023-12-25 09:39:11,969 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [3029 Valid, 1047 Invalid, 703 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [101 Valid, 602 Invalid, 0 Unknown, 0 Unchecked, 0.4s Time] [2023-12-25 09:39:11,981 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 14029 states. [2023-12-25 09:39:12,089 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 14029 to 3813. [2023-12-25 09:39:12,095 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3813 states, 3811 states have (on average 1.4030438205195486) internal successors, (5347), 3812 states have internal predecessors, (5347), 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) [2023-12-25 09:39:12,103 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3813 states to 3813 states and 5347 transitions. [2023-12-25 09:39:12,103 INFO L78 Accepts]: Start accepts. Automaton has 3813 states and 5347 transitions. Word has length 64 [2023-12-25 09:39:12,103 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-25 09:39:12,103 INFO L495 AbstractCegarLoop]: Abstraction has 3813 states and 5347 transitions. [2023-12-25 09:39:12,103 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 10.666666666666666) internal successors, (64), 5 states have internal predecessors, (64), 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) [2023-12-25 09:39:12,104 INFO L276 IsEmpty]: Start isEmpty. Operand 3813 states and 5347 transitions. [2023-12-25 09:39:12,109 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 66 [2023-12-25 09:39:12,109 INFO L187 NwaCegarLoop]: Found error trace [2023-12-25 09:39:12,109 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] [2023-12-25 09:39:12,114 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (9)] Forceful destruction successful, exit code 0 [2023-12-25 09:39:12,314 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 [2023-12-25 09:39:12,315 INFO L420 AbstractCegarLoop]: === Iteration 9 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-25 09:39:12,315 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-25 09:39:12,315 INFO L85 PathProgramCache]: Analyzing trace with hash -1018809852, now seen corresponding path program 1 times [2023-12-25 09:39:12,316 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-12-25 09:39:12,316 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [580702469] [2023-12-25 09:39:12,316 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-25 09:39:12,316 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 [2023-12-25 09:39:12,316 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2023-12-25 09:39:12,317 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) [2023-12-25 09:39:12,350 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (10)] Waiting until timeout for monitored process [2023-12-25 09:39:12,444 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-25 09:39:12,449 INFO L262 TraceCheckSpWp]: Trace formula consists of 225 conjuncts, 4 conjunts are in the unsatisfiable core [2023-12-25 09:39:12,451 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-25 09:39:12,606 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-12-25 09:39:12,607 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-12-25 09:39:12,607 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-12-25 09:39:12,607 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [580702469] [2023-12-25 09:39:12,607 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [580702469] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-25 09:39:12,607 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-25 09:39:12,607 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2023-12-25 09:39:12,607 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [413989372] [2023-12-25 09:39:12,607 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-25 09:39:12,608 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2023-12-25 09:39:12,608 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-12-25 09:39:12,608 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2023-12-25 09:39:12,608 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2023-12-25 09:39:12,608 INFO L87 Difference]: Start difference. First operand 3813 states and 5347 transitions. Second operand has 5 states, 5 states have (on average 13.0) internal successors, (65), 4 states have internal predecessors, (65), 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) [2023-12-25 09:39:12,992 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-25 09:39:12,993 INFO L93 Difference]: Finished difference Result 9709 states and 13784 transitions. [2023-12-25 09:39:12,993 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2023-12-25 09:39:12,993 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 13.0) internal successors, (65), 4 states have internal predecessors, (65), 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 65 [2023-12-25 09:39:12,993 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-25 09:39:13,003 INFO L225 Difference]: With dead ends: 9709 [2023-12-25 09:39:13,003 INFO L226 Difference]: Without dead ends: 6149 [2023-12-25 09:39:13,007 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 65 GetRequests, 61 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=14, Invalid=16, Unknown=0, NotChecked=0, Total=30 [2023-12-25 09:39:13,008 INFO L413 NwaCegarLoop]: 382 mSDtfsCounter, 1610 mSDsluCounter, 137 mSDsCounter, 0 mSdLazyCounter, 314 mSolverCounterSat, 4 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1610 SdHoareTripleChecker+Valid, 519 SdHoareTripleChecker+Invalid, 318 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 4 IncrementalHoareTripleChecker+Valid, 314 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2023-12-25 09:39:13,008 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1610 Valid, 519 Invalid, 318 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [4 Valid, 314 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2023-12-25 09:39:13,012 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 6149 states. [2023-12-25 09:39:13,069 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 6149 to 6147. [2023-12-25 09:39:13,086 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 6147 states, 6145 states have (on average 1.4148087876322213) internal successors, (8694), 6146 states have internal predecessors, (8694), 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) [2023-12-25 09:39:13,094 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6147 states to 6147 states and 8694 transitions. [2023-12-25 09:39:13,095 INFO L78 Accepts]: Start accepts. Automaton has 6147 states and 8694 transitions. Word has length 65 [2023-12-25 09:39:13,095 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-25 09:39:13,095 INFO L495 AbstractCegarLoop]: Abstraction has 6147 states and 8694 transitions. [2023-12-25 09:39:13,095 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 13.0) internal successors, (65), 4 states have internal predecessors, (65), 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) [2023-12-25 09:39:13,095 INFO L276 IsEmpty]: Start isEmpty. Operand 6147 states and 8694 transitions. [2023-12-25 09:39:13,098 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 66 [2023-12-25 09:39:13,098 INFO L187 NwaCegarLoop]: Found error trace [2023-12-25 09:39:13,098 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] [2023-12-25 09:39:13,104 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 [2023-12-25 09:39:13,302 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 [2023-12-25 09:39:13,302 INFO L420 AbstractCegarLoop]: === Iteration 10 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-25 09:39:13,303 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-25 09:39:13,303 INFO L85 PathProgramCache]: Analyzing trace with hash 704648216, now seen corresponding path program 1 times [2023-12-25 09:39:13,303 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-12-25 09:39:13,303 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [557669455] [2023-12-25 09:39:13,303 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-25 09:39:13,303 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 [2023-12-25 09:39:13,304 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2023-12-25 09:39:13,304 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) [2023-12-25 09:39:13,335 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 [2023-12-25 09:39:13,429 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-25 09:39:13,431 INFO L262 TraceCheckSpWp]: Trace formula consists of 228 conjuncts, 2 conjunts are in the unsatisfiable core [2023-12-25 09:39:13,433 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-25 09:39:13,450 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-12-25 09:39:13,450 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-12-25 09:39:13,450 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-12-25 09:39:13,451 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [557669455] [2023-12-25 09:39:13,451 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [557669455] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-25 09:39:13,451 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-25 09:39:13,451 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2023-12-25 09:39:13,451 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [703924838] [2023-12-25 09:39:13,451 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-25 09:39:13,451 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-12-25 09:39:13,451 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-12-25 09:39:13,451 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-12-25 09:39:13,452 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-12-25 09:39:13,452 INFO L87 Difference]: Start difference. First operand 6147 states and 8694 transitions. Second operand has 3 states, 3 states have (on average 21.666666666666668) internal successors, (65), 3 states have internal predecessors, (65), 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) [2023-12-25 09:39:13,527 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-25 09:39:13,528 INFO L93 Difference]: Finished difference Result 8204 states and 11603 transitions. [2023-12-25 09:39:13,528 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-12-25 09:39:13,528 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 21.666666666666668) internal successors, (65), 3 states have internal predecessors, (65), 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 65 [2023-12-25 09:39:13,528 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-25 09:39:13,538 INFO L225 Difference]: With dead ends: 8204 [2023-12-25 09:39:13,539 INFO L226 Difference]: Without dead ends: 6322 [2023-12-25 09:39:13,542 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 64 GetRequests, 63 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-12-25 09:39:13,543 INFO L413 NwaCegarLoop]: 726 mSDtfsCounter, 351 mSDsluCounter, 481 mSDsCounter, 0 mSdLazyCounter, 35 mSolverCounterSat, 18 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 351 SdHoareTripleChecker+Valid, 1207 SdHoareTripleChecker+Invalid, 53 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 18 IncrementalHoareTripleChecker+Valid, 35 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2023-12-25 09:39:13,544 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [351 Valid, 1207 Invalid, 53 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [18 Valid, 35 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2023-12-25 09:39:13,548 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 6322 states. [2023-12-25 09:39:13,621 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 6322 to 5854. [2023-12-25 09:39:13,627 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5854 states, 5852 states have (on average 1.3839712918660287) internal successors, (8099), 5853 states have internal predecessors, (8099), 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) [2023-12-25 09:39:13,633 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5854 states to 5854 states and 8099 transitions. [2023-12-25 09:39:13,634 INFO L78 Accepts]: Start accepts. Automaton has 5854 states and 8099 transitions. Word has length 65 [2023-12-25 09:39:13,634 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-25 09:39:13,634 INFO L495 AbstractCegarLoop]: Abstraction has 5854 states and 8099 transitions. [2023-12-25 09:39:13,634 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 21.666666666666668) internal successors, (65), 3 states have internal predecessors, (65), 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) [2023-12-25 09:39:13,634 INFO L276 IsEmpty]: Start isEmpty. Operand 5854 states and 8099 transitions. [2023-12-25 09:39:13,637 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 66 [2023-12-25 09:39:13,639 INFO L187 NwaCegarLoop]: Found error trace [2023-12-25 09:39:13,639 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] [2023-12-25 09:39:13,645 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 [2023-12-25 09:39:13,842 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 [2023-12-25 09:39:13,843 INFO L420 AbstractCegarLoop]: === Iteration 11 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-25 09:39:13,843 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-25 09:39:13,843 INFO L85 PathProgramCache]: Analyzing trace with hash 183198998, now seen corresponding path program 1 times [2023-12-25 09:39:13,843 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-12-25 09:39:13,844 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1921616564] [2023-12-25 09:39:13,844 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-25 09:39:13,844 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 [2023-12-25 09:39:13,844 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2023-12-25 09:39:13,845 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) [2023-12-25 09:39:13,846 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 [2023-12-25 09:39:13,964 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-25 09:39:13,967 INFO L262 TraceCheckSpWp]: Trace formula consists of 225 conjuncts, 2 conjunts are in the unsatisfiable core [2023-12-25 09:39:13,968 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-25 09:39:13,992 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-12-25 09:39:13,992 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-12-25 09:39:13,992 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-12-25 09:39:13,992 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1921616564] [2023-12-25 09:39:13,992 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1921616564] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-25 09:39:13,993 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-25 09:39:13,993 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2023-12-25 09:39:13,993 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [634630266] [2023-12-25 09:39:13,993 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-25 09:39:13,993 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-12-25 09:39:13,993 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-12-25 09:39:13,993 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-12-25 09:39:13,993 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-12-25 09:39:13,994 INFO L87 Difference]: Start difference. First operand 5854 states and 8099 transitions. Second operand has 3 states, 3 states have (on average 21.666666666666668) internal successors, (65), 3 states have internal predecessors, (65), 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) [2023-12-25 09:39:14,036 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-25 09:39:14,036 INFO L93 Difference]: Finished difference Result 11422 states and 16060 transitions. [2023-12-25 09:39:14,038 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-12-25 09:39:14,038 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 21.666666666666668) internal successors, (65), 3 states have internal predecessors, (65), 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 65 [2023-12-25 09:39:14,038 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-25 09:39:14,050 INFO L225 Difference]: With dead ends: 11422 [2023-12-25 09:39:14,050 INFO L226 Difference]: Without dead ends: 7379 [2023-12-25 09:39:14,056 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 64 GetRequests, 63 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-12-25 09:39:14,057 INFO L413 NwaCegarLoop]: 665 mSDtfsCounter, 305 mSDsluCounter, 479 mSDsCounter, 0 mSdLazyCounter, 10 mSolverCounterSat, 5 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 305 SdHoareTripleChecker+Valid, 1144 SdHoareTripleChecker+Invalid, 15 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 5 IncrementalHoareTripleChecker+Valid, 10 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2023-12-25 09:39:14,057 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [305 Valid, 1144 Invalid, 15 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [5 Valid, 10 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2023-12-25 09:39:14,064 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 7379 states. [2023-12-25 09:39:14,118 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 7379 to 5632. [2023-12-25 09:39:14,124 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5632 states, 5630 states have (on average 1.3687388987566607) internal successors, (7706), 5631 states have internal predecessors, (7706), 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) [2023-12-25 09:39:14,131 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5632 states to 5632 states and 7706 transitions. [2023-12-25 09:39:14,132 INFO L78 Accepts]: Start accepts. Automaton has 5632 states and 7706 transitions. Word has length 65 [2023-12-25 09:39:14,132 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-25 09:39:14,132 INFO L495 AbstractCegarLoop]: Abstraction has 5632 states and 7706 transitions. [2023-12-25 09:39:14,132 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 21.666666666666668) internal successors, (65), 3 states have internal predecessors, (65), 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) [2023-12-25 09:39:14,132 INFO L276 IsEmpty]: Start isEmpty. Operand 5632 states and 7706 transitions. [2023-12-25 09:39:14,135 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 68 [2023-12-25 09:39:14,135 INFO L187 NwaCegarLoop]: Found error trace [2023-12-25 09:39:14,135 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] [2023-12-25 09:39:14,140 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (12)] Forceful destruction successful, exit code 0 [2023-12-25 09:39:14,338 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 [2023-12-25 09:39:14,338 INFO L420 AbstractCegarLoop]: === Iteration 12 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-25 09:39:14,338 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-25 09:39:14,339 INFO L85 PathProgramCache]: Analyzing trace with hash 122273231, now seen corresponding path program 1 times [2023-12-25 09:39:14,339 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-12-25 09:39:14,339 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [903638487] [2023-12-25 09:39:14,339 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-25 09:39:14,339 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2023-12-25 09:39:14,339 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2023-12-25 09:39:14,340 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) [2023-12-25 09:39:14,344 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 [2023-12-25 09:39:14,463 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-25 09:39:14,465 INFO L262 TraceCheckSpWp]: Trace formula consists of 229 conjuncts, 2 conjunts are in the unsatisfiable core [2023-12-25 09:39:14,467 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-25 09:39:14,504 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-12-25 09:39:14,504 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-12-25 09:39:14,504 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-12-25 09:39:14,504 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [903638487] [2023-12-25 09:39:14,504 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [903638487] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-25 09:39:14,504 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-25 09:39:14,505 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2023-12-25 09:39:14,505 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [68095730] [2023-12-25 09:39:14,505 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-25 09:39:14,505 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-12-25 09:39:14,505 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-12-25 09:39:14,505 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-12-25 09:39:14,505 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-12-25 09:39:14,506 INFO L87 Difference]: Start difference. First operand 5632 states and 7706 transitions. Second operand has 3 states, 3 states have (on average 22.333333333333332) internal successors, (67), 3 states have internal predecessors, (67), 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) [2023-12-25 09:39:14,548 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-25 09:39:14,548 INFO L93 Difference]: Finished difference Result 10636 states and 14643 transitions. [2023-12-25 09:39:14,548 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-12-25 09:39:14,549 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 22.333333333333332) internal successors, (67), 3 states have internal predecessors, (67), 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 67 [2023-12-25 09:39:14,549 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-25 09:39:14,558 INFO L225 Difference]: With dead ends: 10636 [2023-12-25 09:39:14,558 INFO L226 Difference]: Without dead ends: 6515 [2023-12-25 09:39:14,562 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 66 GetRequests, 65 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-12-25 09:39:14,563 INFO L413 NwaCegarLoop]: 815 mSDtfsCounter, 418 mSDsluCounter, 467 mSDsCounter, 0 mSdLazyCounter, 13 mSolverCounterSat, 8 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 418 SdHoareTripleChecker+Valid, 1282 SdHoareTripleChecker+Invalid, 21 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 8 IncrementalHoareTripleChecker+Valid, 13 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2023-12-25 09:39:14,563 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [418 Valid, 1282 Invalid, 21 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [8 Valid, 13 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2023-12-25 09:39:14,567 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 6515 states. [2023-12-25 09:39:14,621 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 6515 to 6471. [2023-12-25 09:39:14,626 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 6471 states, 6469 states have (on average 1.3411655588189828) internal successors, (8676), 6470 states have internal predecessors, (8676), 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) [2023-12-25 09:39:14,633 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6471 states to 6471 states and 8676 transitions. [2023-12-25 09:39:14,633 INFO L78 Accepts]: Start accepts. Automaton has 6471 states and 8676 transitions. Word has length 67 [2023-12-25 09:39:14,634 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-25 09:39:14,634 INFO L495 AbstractCegarLoop]: Abstraction has 6471 states and 8676 transitions. [2023-12-25 09:39:14,634 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 22.333333333333332) internal successors, (67), 3 states have internal predecessors, (67), 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) [2023-12-25 09:39:14,634 INFO L276 IsEmpty]: Start isEmpty. Operand 6471 states and 8676 transitions. [2023-12-25 09:39:14,638 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 69 [2023-12-25 09:39:14,638 INFO L187 NwaCegarLoop]: Found error trace [2023-12-25 09:39:14,638 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] [2023-12-25 09:39:14,641 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 [2023-12-25 09:39:14,841 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 [2023-12-25 09:39:14,841 INFO L420 AbstractCegarLoop]: === Iteration 13 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-25 09:39:14,841 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-25 09:39:14,841 INFO L85 PathProgramCache]: Analyzing trace with hash 288337870, now seen corresponding path program 1 times [2023-12-25 09:39:14,842 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-12-25 09:39:14,842 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [160205726] [2023-12-25 09:39:14,842 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-25 09:39:14,842 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 [2023-12-25 09:39:14,842 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2023-12-25 09:39:14,843 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) [2023-12-25 09:39:14,846 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 [2023-12-25 09:39:14,964 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-25 09:39:14,967 INFO L262 TraceCheckSpWp]: Trace formula consists of 232 conjuncts, 8 conjunts are in the unsatisfiable core [2023-12-25 09:39:14,968 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-25 09:39:15,364 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-12-25 09:39:15,365 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-12-25 09:39:15,365 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-12-25 09:39:15,365 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [160205726] [2023-12-25 09:39:15,365 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [160205726] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-25 09:39:15,365 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-25 09:39:15,365 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2023-12-25 09:39:15,365 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [911336920] [2023-12-25 09:39:15,365 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-25 09:39:15,366 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2023-12-25 09:39:15,366 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-12-25 09:39:15,366 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2023-12-25 09:39:15,366 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=18, Invalid=38, Unknown=0, NotChecked=0, Total=56 [2023-12-25 09:39:15,366 INFO L87 Difference]: Start difference. First operand 6471 states and 8676 transitions. Second operand has 8 states, 8 states have (on average 8.5) internal successors, (68), 7 states have internal predecessors, (68), 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) [2023-12-25 09:39:16,940 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-25 09:39:16,940 INFO L93 Difference]: Finished difference Result 10953 states and 14969 transitions. [2023-12-25 09:39:16,941 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2023-12-25 09:39:16,941 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 8 states have (on average 8.5) internal successors, (68), 7 states have internal predecessors, (68), 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 68 [2023-12-25 09:39:16,941 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-25 09:39:16,952 INFO L225 Difference]: With dead ends: 10953 [2023-12-25 09:39:16,952 INFO L226 Difference]: Without dead ends: 8742 [2023-12-25 09:39:16,956 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 76 GetRequests, 61 SyntacticMatches, 0 SemanticMatches, 15 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 31 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=82, Invalid=190, Unknown=0, NotChecked=0, Total=272 [2023-12-25 09:39:16,957 INFO L413 NwaCegarLoop]: 454 mSDtfsCounter, 1711 mSDsluCounter, 1356 mSDsCounter, 0 mSdLazyCounter, 1282 mSolverCounterSat, 18 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1711 SdHoareTripleChecker+Valid, 1810 SdHoareTripleChecker+Invalid, 1300 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 18 IncrementalHoareTripleChecker+Valid, 1282 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.4s IncrementalHoareTripleChecker+Time [2023-12-25 09:39:16,957 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1711 Valid, 1810 Invalid, 1300 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [18 Valid, 1282 Invalid, 0 Unknown, 0 Unchecked, 1.4s Time] [2023-12-25 09:39:16,961 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 8742 states. [2023-12-25 09:39:17,047 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 8742 to 6467. [2023-12-25 09:39:17,053 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 6467 states, 6465 states have (on average 1.3407579273008507) internal successors, (8668), 6466 states have internal predecessors, (8668), 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) [2023-12-25 09:39:17,060 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6467 states to 6467 states and 8668 transitions. [2023-12-25 09:39:17,060 INFO L78 Accepts]: Start accepts. Automaton has 6467 states and 8668 transitions. Word has length 68 [2023-12-25 09:39:17,060 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-25 09:39:17,060 INFO L495 AbstractCegarLoop]: Abstraction has 6467 states and 8668 transitions. [2023-12-25 09:39:17,061 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 8 states have (on average 8.5) internal successors, (68), 7 states have internal predecessors, (68), 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) [2023-12-25 09:39:17,061 INFO L276 IsEmpty]: Start isEmpty. Operand 6467 states and 8668 transitions. [2023-12-25 09:39:17,065 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 69 [2023-12-25 09:39:17,066 INFO L187 NwaCegarLoop]: Found error trace [2023-12-25 09:39:17,066 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] [2023-12-25 09:39:17,071 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 [2023-12-25 09:39:17,269 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 [2023-12-25 09:39:17,269 INFO L420 AbstractCegarLoop]: === Iteration 14 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-25 09:39:17,270 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-25 09:39:17,270 INFO L85 PathProgramCache]: Analyzing trace with hash 1656089935, now seen corresponding path program 1 times [2023-12-25 09:39:17,270 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-12-25 09:39:17,271 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [828384157] [2023-12-25 09:39:17,271 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-25 09:39:17,271 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 [2023-12-25 09:39:17,271 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2023-12-25 09:39:17,272 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) [2023-12-25 09:39:17,292 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 [2023-12-25 09:39:17,399 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-25 09:39:17,402 INFO L262 TraceCheckSpWp]: Trace formula consists of 231 conjuncts, 8 conjunts are in the unsatisfiable core [2023-12-25 09:39:17,403 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-25 09:39:17,671 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-12-25 09:39:17,671 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-12-25 09:39:17,671 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-12-25 09:39:17,671 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [828384157] [2023-12-25 09:39:17,672 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [828384157] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-25 09:39:17,672 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-25 09:39:17,672 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2023-12-25 09:39:17,672 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [294929569] [2023-12-25 09:39:17,672 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-25 09:39:17,672 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2023-12-25 09:39:17,672 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-12-25 09:39:17,672 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2023-12-25 09:39:17,672 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=21, Invalid=51, Unknown=0, NotChecked=0, Total=72 [2023-12-25 09:39:17,673 INFO L87 Difference]: Start difference. First operand 6467 states and 8668 transitions. Second operand has 9 states, 9 states have (on average 7.555555555555555) internal successors, (68), 8 states have internal predecessors, (68), 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) [2023-12-25 09:39:19,499 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-25 09:39:19,499 INFO L93 Difference]: Finished difference Result 8189 states and 11024 transitions. [2023-12-25 09:39:19,499 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2023-12-25 09:39:19,500 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 9 states have (on average 7.555555555555555) internal successors, (68), 8 states have internal predecessors, (68), 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 68 [2023-12-25 09:39:19,500 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-25 09:39:19,508 INFO L225 Difference]: With dead ends: 8189 [2023-12-25 09:39:19,509 INFO L226 Difference]: Without dead ends: 7618 [2023-12-25 09:39:19,511 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 75 GetRequests, 60 SyntacticMatches, 0 SemanticMatches, 15 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 18 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=82, Invalid=190, Unknown=0, NotChecked=0, Total=272 [2023-12-25 09:39:19,511 INFO L413 NwaCegarLoop]: 426 mSDtfsCounter, 1615 mSDsluCounter, 1594 mSDsCounter, 0 mSdLazyCounter, 1575 mSolverCounterSat, 13 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1615 SdHoareTripleChecker+Valid, 2020 SdHoareTripleChecker+Invalid, 1588 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 13 IncrementalHoareTripleChecker+Valid, 1575 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.6s IncrementalHoareTripleChecker+Time [2023-12-25 09:39:19,511 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1615 Valid, 2020 Invalid, 1588 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [13 Valid, 1575 Invalid, 0 Unknown, 0 Unchecked, 1.6s Time] [2023-12-25 09:39:19,514 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 7618 states. [2023-12-25 09:39:19,575 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 7618 to 6467. [2023-12-25 09:39:19,580 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 6467 states, 6465 states have (on average 1.3404485692188708) internal successors, (8666), 6466 states have internal predecessors, (8666), 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) [2023-12-25 09:39:19,588 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6467 states to 6467 states and 8666 transitions. [2023-12-25 09:39:19,588 INFO L78 Accepts]: Start accepts. Automaton has 6467 states and 8666 transitions. Word has length 68 [2023-12-25 09:39:19,588 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-25 09:39:19,588 INFO L495 AbstractCegarLoop]: Abstraction has 6467 states and 8666 transitions. [2023-12-25 09:39:19,588 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 9 states have (on average 7.555555555555555) internal successors, (68), 8 states have internal predecessors, (68), 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) [2023-12-25 09:39:19,588 INFO L276 IsEmpty]: Start isEmpty. Operand 6467 states and 8666 transitions. [2023-12-25 09:39:19,593 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 70 [2023-12-25 09:39:19,593 INFO L187 NwaCegarLoop]: Found error trace [2023-12-25 09:39:19,593 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] [2023-12-25 09:39:19,599 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 [2023-12-25 09:39:19,796 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 [2023-12-25 09:39:19,796 INFO L420 AbstractCegarLoop]: === Iteration 15 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-25 09:39:19,797 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-25 09:39:19,797 INFO L85 PathProgramCache]: Analyzing trace with hash -583929423, now seen corresponding path program 1 times [2023-12-25 09:39:19,797 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-12-25 09:39:19,797 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [865185686] [2023-12-25 09:39:19,797 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-25 09:39:19,797 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 [2023-12-25 09:39:19,797 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2023-12-25 09:39:19,798 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) [2023-12-25 09:39:19,800 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 (16)] Waiting until timeout for monitored process [2023-12-25 09:39:19,925 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-25 09:39:19,927 INFO L262 TraceCheckSpWp]: Trace formula consists of 232 conjuncts, 8 conjunts are in the unsatisfiable core [2023-12-25 09:39:19,929 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-25 09:39:20,367 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-12-25 09:39:20,367 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-12-25 09:39:20,368 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-12-25 09:39:20,368 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [865185686] [2023-12-25 09:39:20,368 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [865185686] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-25 09:39:20,368 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-25 09:39:20,368 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2023-12-25 09:39:20,368 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [67779444] [2023-12-25 09:39:20,368 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-25 09:39:20,368 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2023-12-25 09:39:20,368 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-12-25 09:39:20,369 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2023-12-25 09:39:20,369 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=18, Invalid=38, Unknown=0, NotChecked=0, Total=56 [2023-12-25 09:39:20,369 INFO L87 Difference]: Start difference. First operand 6467 states and 8666 transitions. Second operand has 8 states, 8 states have (on average 8.625) internal successors, (69), 7 states have internal predecessors, (69), 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) [2023-12-25 09:39:21,806 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-25 09:39:21,806 INFO L93 Difference]: Finished difference Result 13299 states and 18267 transitions. [2023-12-25 09:39:21,807 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2023-12-25 09:39:21,807 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 8 states have (on average 8.625) internal successors, (69), 7 states have internal predecessors, (69), 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 69 [2023-12-25 09:39:21,807 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-25 09:39:21,816 INFO L225 Difference]: With dead ends: 13299 [2023-12-25 09:39:21,817 INFO L226 Difference]: Without dead ends: 9886 [2023-12-25 09:39:21,821 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 77 GetRequests, 62 SyntacticMatches, 0 SemanticMatches, 15 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 31 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=82, Invalid=190, Unknown=0, NotChecked=0, Total=272 [2023-12-25 09:39:21,822 INFO L413 NwaCegarLoop]: 444 mSDtfsCounter, 1805 mSDsluCounter, 1288 mSDsCounter, 0 mSdLazyCounter, 1140 mSolverCounterSat, 20 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1805 SdHoareTripleChecker+Valid, 1732 SdHoareTripleChecker+Invalid, 1160 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 20 IncrementalHoareTripleChecker+Valid, 1140 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.2s IncrementalHoareTripleChecker+Time [2023-12-25 09:39:21,822 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1805 Valid, 1732 Invalid, 1160 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [20 Valid, 1140 Invalid, 0 Unknown, 0 Unchecked, 1.2s Time] [2023-12-25 09:39:21,828 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 9886 states. [2023-12-25 09:39:21,899 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 9886 to 6443. [2023-12-25 09:39:21,905 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 6443 states, 6441 states have (on average 1.3395435491383325) internal successors, (8628), 6442 states have internal predecessors, (8628), 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) [2023-12-25 09:39:21,912 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6443 states to 6443 states and 8628 transitions. [2023-12-25 09:39:21,912 INFO L78 Accepts]: Start accepts. Automaton has 6443 states and 8628 transitions. Word has length 69 [2023-12-25 09:39:21,912 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-25 09:39:21,912 INFO L495 AbstractCegarLoop]: Abstraction has 6443 states and 8628 transitions. [2023-12-25 09:39:21,912 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 8 states have (on average 8.625) internal successors, (69), 7 states have internal predecessors, (69), 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) [2023-12-25 09:39:21,912 INFO L276 IsEmpty]: Start isEmpty. Operand 6443 states and 8628 transitions. [2023-12-25 09:39:21,917 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 70 [2023-12-25 09:39:21,917 INFO L187 NwaCegarLoop]: Found error trace [2023-12-25 09:39:21,917 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] [2023-12-25 09:39:21,923 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 [2023-12-25 09:39:22,120 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 [2023-12-25 09:39:22,121 INFO L420 AbstractCegarLoop]: === Iteration 16 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-25 09:39:22,121 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-25 09:39:22,121 INFO L85 PathProgramCache]: Analyzing trace with hash -843555950, now seen corresponding path program 1 times [2023-12-25 09:39:22,121 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-12-25 09:39:22,122 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [2083734024] [2023-12-25 09:39:22,122 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-25 09:39:22,122 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 [2023-12-25 09:39:22,122 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2023-12-25 09:39:22,123 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) [2023-12-25 09:39:22,124 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 [2023-12-25 09:39:22,244 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-25 09:39:22,247 INFO L262 TraceCheckSpWp]: Trace formula consists of 234 conjuncts, 18 conjunts are in the unsatisfiable core [2023-12-25 09:39:22,249 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-25 09:39:23,241 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-12-25 09:39:23,241 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-12-25 09:39:23,241 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-12-25 09:39:23,241 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [2083734024] [2023-12-25 09:39:23,241 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [2083734024] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-25 09:39:23,241 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-25 09:39:23,242 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [15] imperfect sequences [] total 15 [2023-12-25 09:39:23,242 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1956614956] [2023-12-25 09:39:23,242 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-25 09:39:23,242 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 15 states [2023-12-25 09:39:23,242 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-12-25 09:39:23,242 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 15 interpolants. [2023-12-25 09:39:23,242 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=43, Invalid=167, Unknown=0, NotChecked=0, Total=210 [2023-12-25 09:39:23,242 INFO L87 Difference]: Start difference. First operand 6443 states and 8628 transitions. Second operand has 15 states, 15 states have (on average 4.6) internal successors, (69), 15 states have internal predecessors, (69), 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) [2023-12-25 09:39:25,203 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-25 09:39:25,203 INFO L93 Difference]: Finished difference Result 23648 states and 32557 transitions. [2023-12-25 09:39:25,203 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 20 states. [2023-12-25 09:39:25,203 INFO L78 Accepts]: Start accepts. Automaton has has 15 states, 15 states have (on average 4.6) internal successors, (69), 15 states have internal predecessors, (69), 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 69 [2023-12-25 09:39:25,203 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-25 09:39:25,220 INFO L225 Difference]: With dead ends: 23648 [2023-12-25 09:39:25,220 INFO L226 Difference]: Without dead ends: 18305 [2023-12-25 09:39:25,227 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 80 GetRequests, 55 SyntacticMatches, 0 SemanticMatches, 25 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 115 ImplicationChecksByTransitivity, 0.9s TimeCoverageRelationStatistics Valid=175, Invalid=527, Unknown=0, NotChecked=0, Total=702 [2023-12-25 09:39:25,228 INFO L413 NwaCegarLoop]: 614 mSDtfsCounter, 3162 mSDsluCounter, 4236 mSDsCounter, 0 mSdLazyCounter, 1102 mSolverCounterSat, 11 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 3162 SdHoareTripleChecker+Valid, 4850 SdHoareTripleChecker+Invalid, 1113 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 11 IncrementalHoareTripleChecker+Valid, 1102 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.3s IncrementalHoareTripleChecker+Time [2023-12-25 09:39:25,228 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [3162 Valid, 4850 Invalid, 1113 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [11 Valid, 1102 Invalid, 0 Unknown, 0 Unchecked, 1.3s Time] [2023-12-25 09:39:25,238 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 18305 states. [2023-12-25 09:39:25,396 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 18305 to 17635. [2023-12-25 09:39:25,412 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 17635 states, 17633 states have (on average 1.3796291045199343) internal successors, (24327), 17634 states have internal predecessors, (24327), 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) [2023-12-25 09:39:25,433 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 17635 states to 17635 states and 24327 transitions. [2023-12-25 09:39:25,433 INFO L78 Accepts]: Start accepts. Automaton has 17635 states and 24327 transitions. Word has length 69 [2023-12-25 09:39:25,433 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-25 09:39:25,433 INFO L495 AbstractCegarLoop]: Abstraction has 17635 states and 24327 transitions. [2023-12-25 09:39:25,433 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 15 states, 15 states have (on average 4.6) internal successors, (69), 15 states have internal predecessors, (69), 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) [2023-12-25 09:39:25,434 INFO L276 IsEmpty]: Start isEmpty. Operand 17635 states and 24327 transitions. [2023-12-25 09:39:25,438 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 70 [2023-12-25 09:39:25,438 INFO L187 NwaCegarLoop]: Found error trace [2023-12-25 09:39:25,439 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] [2023-12-25 09:39:25,441 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 [2023-12-25 09:39:25,641 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 [2023-12-25 09:39:25,642 INFO L420 AbstractCegarLoop]: === Iteration 17 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-25 09:39:25,642 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-25 09:39:25,642 INFO L85 PathProgramCache]: Analyzing trace with hash -48339803, now seen corresponding path program 1 times [2023-12-25 09:39:25,642 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-12-25 09:39:25,642 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [683116888] [2023-12-25 09:39:25,643 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-25 09:39:25,643 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 [2023-12-25 09:39:25,643 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2023-12-25 09:39:25,643 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) [2023-12-25 09:39:25,644 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 [2023-12-25 09:39:25,762 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-25 09:39:25,764 INFO L262 TraceCheckSpWp]: Trace formula consists of 229 conjuncts, 8 conjunts are in the unsatisfiable core [2023-12-25 09:39:25,766 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-25 09:39:26,160 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-12-25 09:39:26,160 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-12-25 09:39:26,161 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-12-25 09:39:26,161 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [683116888] [2023-12-25 09:39:26,161 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [683116888] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-25 09:39:26,161 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-25 09:39:26,161 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2023-12-25 09:39:26,161 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1394471626] [2023-12-25 09:39:26,161 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-25 09:39:26,161 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2023-12-25 09:39:26,161 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-12-25 09:39:26,162 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2023-12-25 09:39:26,162 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=21, Invalid=51, Unknown=0, NotChecked=0, Total=72 [2023-12-25 09:39:26,162 INFO L87 Difference]: Start difference. First operand 17635 states and 24327 transitions. Second operand has 9 states, 9 states have (on average 7.666666666666667) internal successors, (69), 8 states have internal predecessors, (69), 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) [2023-12-25 09:39:28,023 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-25 09:39:28,023 INFO L93 Difference]: Finished difference Result 55509 states and 77573 transitions. [2023-12-25 09:39:28,023 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2023-12-25 09:39:28,023 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 9 states have (on average 7.666666666666667) internal successors, (69), 8 states have internal predecessors, (69), 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 69 [2023-12-25 09:39:28,024 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-25 09:39:28,067 INFO L225 Difference]: With dead ends: 55509 [2023-12-25 09:39:28,067 INFO L226 Difference]: Without dead ends: 40934 [2023-12-25 09:39:28,088 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 79 GetRequests, 61 SyntacticMatches, 0 SemanticMatches, 18 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 46 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=107, Invalid=273, Unknown=0, NotChecked=0, Total=380 [2023-12-25 09:39:28,089 INFO L413 NwaCegarLoop]: 498 mSDtfsCounter, 2992 mSDsluCounter, 1719 mSDsCounter, 0 mSdLazyCounter, 1330 mSolverCounterSat, 15 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2992 SdHoareTripleChecker+Valid, 2217 SdHoareTripleChecker+Invalid, 1345 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 15 IncrementalHoareTripleChecker+Valid, 1330 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.5s IncrementalHoareTripleChecker+Time [2023-12-25 09:39:28,089 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [2992 Valid, 2217 Invalid, 1345 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [15 Valid, 1330 Invalid, 0 Unknown, 0 Unchecked, 1.5s Time] [2023-12-25 09:39:28,115 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 40934 states. [2023-12-25 09:39:28,453 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 40934 to 17519. [2023-12-25 09:39:28,470 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 17519 states, 17517 states have (on average 1.3802020893988696) internal successors, (24177), 17518 states have internal predecessors, (24177), 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) [2023-12-25 09:39:28,492 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 17519 states to 17519 states and 24177 transitions. [2023-12-25 09:39:28,492 INFO L78 Accepts]: Start accepts. Automaton has 17519 states and 24177 transitions. Word has length 69 [2023-12-25 09:39:28,492 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-25 09:39:28,492 INFO L495 AbstractCegarLoop]: Abstraction has 17519 states and 24177 transitions. [2023-12-25 09:39:28,492 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 9 states have (on average 7.666666666666667) internal successors, (69), 8 states have internal predecessors, (69), 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) [2023-12-25 09:39:28,492 INFO L276 IsEmpty]: Start isEmpty. Operand 17519 states and 24177 transitions. [2023-12-25 09:39:28,497 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 70 [2023-12-25 09:39:28,497 INFO L187 NwaCegarLoop]: Found error trace [2023-12-25 09:39:28,497 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] [2023-12-25 09:39:28,504 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 [2023-12-25 09:39:28,700 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 [2023-12-25 09:39:28,701 INFO L420 AbstractCegarLoop]: === Iteration 18 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-25 09:39:28,701 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-25 09:39:28,701 INFO L85 PathProgramCache]: Analyzing trace with hash 764464694, now seen corresponding path program 1 times [2023-12-25 09:39:28,701 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-12-25 09:39:28,701 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [174789744] [2023-12-25 09:39:28,702 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-25 09:39:28,702 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 [2023-12-25 09:39:28,702 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2023-12-25 09:39:28,703 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) [2023-12-25 09:39:28,704 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 [2023-12-25 09:39:28,826 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-25 09:39:28,829 INFO L262 TraceCheckSpWp]: Trace formula consists of 233 conjuncts, 18 conjunts are in the unsatisfiable core [2023-12-25 09:39:28,831 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-25 09:39:29,872 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-12-25 09:39:29,872 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-12-25 09:39:29,872 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-12-25 09:39:29,872 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [174789744] [2023-12-25 09:39:29,872 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [174789744] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-25 09:39:29,872 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-25 09:39:29,872 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [14] imperfect sequences [] total 14 [2023-12-25 09:39:29,872 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [491214592] [2023-12-25 09:39:29,872 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-25 09:39:29,873 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 14 states [2023-12-25 09:39:29,873 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-12-25 09:39:29,873 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 14 interpolants. [2023-12-25 09:39:29,873 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=41, Invalid=141, Unknown=0, NotChecked=0, Total=182 [2023-12-25 09:39:29,873 INFO L87 Difference]: Start difference. First operand 17519 states and 24177 transitions. Second operand has 14 states, 14 states have (on average 4.928571428571429) internal successors, (69), 14 states have internal predecessors, (69), 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) [2023-12-25 09:39:31,488 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-25 09:39:31,488 INFO L93 Difference]: Finished difference Result 41727 states and 57976 transitions. [2023-12-25 09:39:31,488 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 17 states. [2023-12-25 09:39:31,488 INFO L78 Accepts]: Start accepts. Automaton has has 14 states, 14 states have (on average 4.928571428571429) internal successors, (69), 14 states have internal predecessors, (69), 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 69 [2023-12-25 09:39:31,488 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-25 09:39:31,511 INFO L225 Difference]: With dead ends: 41727 [2023-12-25 09:39:31,512 INFO L226 Difference]: Without dead ends: 25445 [2023-12-25 09:39:31,520 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 77 GetRequests, 56 SyntacticMatches, 0 SemanticMatches, 21 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 73 ImplicationChecksByTransitivity, 0.5s TimeCoverageRelationStatistics Valid=133, Invalid=373, Unknown=0, NotChecked=0, Total=506 [2023-12-25 09:39:31,521 INFO L413 NwaCegarLoop]: 469 mSDtfsCounter, 2691 mSDsluCounter, 2654 mSDsCounter, 0 mSdLazyCounter, 1026 mSolverCounterSat, 16 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2691 SdHoareTripleChecker+Valid, 3123 SdHoareTripleChecker+Invalid, 1042 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 16 IncrementalHoareTripleChecker+Valid, 1026 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.1s IncrementalHoareTripleChecker+Time [2023-12-25 09:39:31,521 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [2691 Valid, 3123 Invalid, 1042 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [16 Valid, 1026 Invalid, 0 Unknown, 0 Unchecked, 1.1s Time] [2023-12-25 09:39:31,531 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 25445 states. [2023-12-25 09:39:31,660 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 25445 to 10511. [2023-12-25 09:39:31,669 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 10511 states, 10509 states have (on average 1.37482158150157) internal successors, (14448), 10510 states have internal predecessors, (14448), 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) [2023-12-25 09:39:31,680 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 10511 states to 10511 states and 14448 transitions. [2023-12-25 09:39:31,681 INFO L78 Accepts]: Start accepts. Automaton has 10511 states and 14448 transitions. Word has length 69 [2023-12-25 09:39:31,681 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-25 09:39:31,681 INFO L495 AbstractCegarLoop]: Abstraction has 10511 states and 14448 transitions. [2023-12-25 09:39:31,681 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 14 states, 14 states have (on average 4.928571428571429) internal successors, (69), 14 states have internal predecessors, (69), 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) [2023-12-25 09:39:31,681 INFO L276 IsEmpty]: Start isEmpty. Operand 10511 states and 14448 transitions. [2023-12-25 09:39:31,684 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 71 [2023-12-25 09:39:31,684 INFO L187 NwaCegarLoop]: Found error trace [2023-12-25 09:39:31,684 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] [2023-12-25 09:39:31,692 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 [2023-12-25 09:39:31,887 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 [2023-12-25 09:39:31,887 INFO L420 AbstractCegarLoop]: === Iteration 19 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-25 09:39:31,887 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-25 09:39:31,888 INFO L85 PathProgramCache]: Analyzing trace with hash 1937241439, now seen corresponding path program 1 times [2023-12-25 09:39:31,888 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-12-25 09:39:31,888 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1948767550] [2023-12-25 09:39:31,888 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-25 09:39:31,888 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 [2023-12-25 09:39:31,888 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2023-12-25 09:39:31,889 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) [2023-12-25 09:39:31,902 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 [2023-12-25 09:39:32,017 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-25 09:39:32,020 INFO L262 TraceCheckSpWp]: Trace formula consists of 234 conjuncts, 18 conjunts are in the unsatisfiable core [2023-12-25 09:39:32,021 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-25 09:39:32,898 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-12-25 09:39:32,898 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-12-25 09:39:32,898 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-12-25 09:39:32,898 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1948767550] [2023-12-25 09:39:32,898 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1948767550] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-25 09:39:32,898 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-25 09:39:32,898 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [16] imperfect sequences [] total 16 [2023-12-25 09:39:32,898 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [904565302] [2023-12-25 09:39:32,898 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-25 09:39:32,899 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 16 states [2023-12-25 09:39:32,899 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-12-25 09:39:32,899 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 16 interpolants. [2023-12-25 09:39:32,899 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=59, Invalid=181, Unknown=0, NotChecked=0, Total=240 [2023-12-25 09:39:32,899 INFO L87 Difference]: Start difference. First operand 10511 states and 14448 transitions. Second operand has 16 states, 16 states have (on average 4.375) internal successors, (70), 16 states have internal predecessors, (70), 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) [2023-12-25 09:39:34,690 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-25 09:39:34,690 INFO L93 Difference]: Finished difference Result 43352 states and 60428 transitions. [2023-12-25 09:39:34,690 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 18 states. [2023-12-25 09:39:34,690 INFO L78 Accepts]: Start accepts. Automaton has has 16 states, 16 states have (on average 4.375) internal successors, (70), 16 states have internal predecessors, (70), 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 70 [2023-12-25 09:39:34,691 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-25 09:39:34,775 INFO L225 Difference]: With dead ends: 43352 [2023-12-25 09:39:34,775 INFO L226 Difference]: Without dead ends: 34804 [2023-12-25 09:39:34,786 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 77 GetRequests, 55 SyntacticMatches, 0 SemanticMatches, 22 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 59 ImplicationChecksByTransitivity, 0.7s TimeCoverageRelationStatistics Valid=163, Invalid=389, Unknown=0, NotChecked=0, Total=552 [2023-12-25 09:39:34,786 INFO L413 NwaCegarLoop]: 453 mSDtfsCounter, 2770 mSDsluCounter, 3094 mSDsCounter, 0 mSdLazyCounter, 1068 mSolverCounterSat, 10 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2770 SdHoareTripleChecker+Valid, 3547 SdHoareTripleChecker+Invalid, 1078 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 10 IncrementalHoareTripleChecker+Valid, 1068 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.3s IncrementalHoareTripleChecker+Time [2023-12-25 09:39:34,787 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [2770 Valid, 3547 Invalid, 1078 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [10 Valid, 1068 Invalid, 0 Unknown, 0 Unchecked, 1.3s Time] [2023-12-25 09:39:34,804 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 34804 states. [2023-12-25 09:39:34,983 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 34804 to 14831. [2023-12-25 09:39:34,994 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 14831 states, 14829 states have (on average 1.3971946860880706) internal successors, (20719), 14830 states have internal predecessors, (20719), 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) [2023-12-25 09:39:35,012 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 14831 states to 14831 states and 20719 transitions. [2023-12-25 09:39:35,013 INFO L78 Accepts]: Start accepts. Automaton has 14831 states and 20719 transitions. Word has length 70 [2023-12-25 09:39:35,013 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-25 09:39:35,013 INFO L495 AbstractCegarLoop]: Abstraction has 14831 states and 20719 transitions. [2023-12-25 09:39:35,013 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 16 states, 16 states have (on average 4.375) internal successors, (70), 16 states have internal predecessors, (70), 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) [2023-12-25 09:39:35,013 INFO L276 IsEmpty]: Start isEmpty. Operand 14831 states and 20719 transitions. [2023-12-25 09:39:35,016 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 71 [2023-12-25 09:39:35,016 INFO L187 NwaCegarLoop]: Found error trace [2023-12-25 09:39:35,016 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] [2023-12-25 09:39:35,022 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 [2023-12-25 09:39:35,222 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 [2023-12-25 09:39:35,222 INFO L420 AbstractCegarLoop]: === Iteration 20 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-25 09:39:35,223 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-25 09:39:35,223 INFO L85 PathProgramCache]: Analyzing trace with hash -1198684218, now seen corresponding path program 1 times [2023-12-25 09:39:35,223 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-12-25 09:39:35,223 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [352431423] [2023-12-25 09:39:35,223 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-25 09:39:35,223 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2023-12-25 09:39:35,223 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2023-12-25 09:39:35,224 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) [2023-12-25 09:39:35,226 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 [2023-12-25 09:39:35,344 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-25 09:39:35,347 INFO L262 TraceCheckSpWp]: Trace formula consists of 231 conjuncts, 5 conjunts are in the unsatisfiable core [2023-12-25 09:39:35,348 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-25 09:39:35,464 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-12-25 09:39:35,464 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-12-25 09:39:35,464 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-12-25 09:39:35,464 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [352431423] [2023-12-25 09:39:35,464 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [352431423] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-25 09:39:35,464 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-25 09:39:35,464 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2023-12-25 09:39:35,465 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1033533801] [2023-12-25 09:39:35,465 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-25 09:39:35,465 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2023-12-25 09:39:35,465 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-12-25 09:39:35,465 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2023-12-25 09:39:35,465 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=18, Unknown=0, NotChecked=0, Total=30 [2023-12-25 09:39:35,465 INFO L87 Difference]: Start difference. First operand 14831 states and 20719 transitions. Second operand has 6 states, 6 states have (on average 11.666666666666666) internal successors, (70), 5 states have internal predecessors, (70), 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) [2023-12-25 09:39:35,911 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-25 09:39:35,911 INFO L93 Difference]: Finished difference Result 47255 states and 65792 transitions. [2023-12-25 09:39:35,911 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2023-12-25 09:39:35,912 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 11.666666666666666) internal successors, (70), 5 states have internal predecessors, (70), 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 70 [2023-12-25 09:39:35,912 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-25 09:39:35,943 INFO L225 Difference]: With dead ends: 47255 [2023-12-25 09:39:35,943 INFO L226 Difference]: Without dead ends: 33685 [2023-12-25 09:39:35,951 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 73 GetRequests, 65 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 5 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=36, Invalid=54, Unknown=0, NotChecked=0, Total=90 [2023-12-25 09:39:35,951 INFO L413 NwaCegarLoop]: 357 mSDtfsCounter, 1108 mSDsluCounter, 568 mSDsCounter, 0 mSdLazyCounter, 446 mSolverCounterSat, 66 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1108 SdHoareTripleChecker+Valid, 925 SdHoareTripleChecker+Invalid, 512 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 66 IncrementalHoareTripleChecker+Valid, 446 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2023-12-25 09:39:35,952 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1108 Valid, 925 Invalid, 512 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [66 Valid, 446 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2023-12-25 09:39:35,966 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 33685 states. [2023-12-25 09:39:36,189 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 33685 to 14701. [2023-12-25 09:39:36,199 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 14701 states, 14699 states have (on average 1.3874413225389481) internal successors, (20394), 14700 states have internal predecessors, (20394), 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) [2023-12-25 09:39:36,217 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 14701 states to 14701 states and 20394 transitions. [2023-12-25 09:39:36,218 INFO L78 Accepts]: Start accepts. Automaton has 14701 states and 20394 transitions. Word has length 70 [2023-12-25 09:39:36,218 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-25 09:39:36,218 INFO L495 AbstractCegarLoop]: Abstraction has 14701 states and 20394 transitions. [2023-12-25 09:39:36,218 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 11.666666666666666) internal successors, (70), 5 states have internal predecessors, (70), 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) [2023-12-25 09:39:36,218 INFO L276 IsEmpty]: Start isEmpty. Operand 14701 states and 20394 transitions. [2023-12-25 09:39:36,222 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 72 [2023-12-25 09:39:36,222 INFO L187 NwaCegarLoop]: Found error trace [2023-12-25 09:39:36,222 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] [2023-12-25 09:39:36,229 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 [2023-12-25 09:39:36,425 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 [2023-12-25 09:39:36,426 INFO L420 AbstractCegarLoop]: === Iteration 21 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-25 09:39:36,426 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-25 09:39:36,426 INFO L85 PathProgramCache]: Analyzing trace with hash -1421898609, now seen corresponding path program 1 times [2023-12-25 09:39:36,426 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-12-25 09:39:36,426 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [156151014] [2023-12-25 09:39:36,427 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-25 09:39:36,427 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 [2023-12-25 09:39:36,427 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2023-12-25 09:39:36,428 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) [2023-12-25 09:39:36,434 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 [2023-12-25 09:39:36,550 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-25 09:39:36,553 INFO L262 TraceCheckSpWp]: Trace formula consists of 237 conjuncts, 2 conjunts are in the unsatisfiable core [2023-12-25 09:39:36,554 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-25 09:39:36,578 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-12-25 09:39:36,578 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-12-25 09:39:36,578 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-12-25 09:39:36,578 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [156151014] [2023-12-25 09:39:36,578 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [156151014] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-25 09:39:36,578 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-25 09:39:36,578 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2023-12-25 09:39:36,578 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [32178298] [2023-12-25 09:39:36,578 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-25 09:39:36,579 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-12-25 09:39:36,579 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-12-25 09:39:36,579 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-12-25 09:39:36,579 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-12-25 09:39:36,579 INFO L87 Difference]: Start difference. First operand 14701 states and 20394 transitions. Second operand has 3 states, 3 states have (on average 23.666666666666668) internal successors, (71), 3 states have internal predecessors, (71), 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) [2023-12-25 09:39:36,632 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-25 09:39:36,632 INFO L93 Difference]: Finished difference Result 16740 states and 23174 transitions. [2023-12-25 09:39:36,632 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-12-25 09:39:36,633 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), 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 71 [2023-12-25 09:39:36,633 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-25 09:39:36,649 INFO L225 Difference]: With dead ends: 16740 [2023-12-25 09:39:36,649 INFO L226 Difference]: Without dead ends: 13894 [2023-12-25 09:39:36,654 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 70 GetRequests, 69 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-12-25 09:39:36,655 INFO L413 NwaCegarLoop]: 560 mSDtfsCounter, 279 mSDsluCounter, 261 mSDsCounter, 0 mSdLazyCounter, 16 mSolverCounterSat, 7 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 279 SdHoareTripleChecker+Valid, 821 SdHoareTripleChecker+Invalid, 23 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 7 IncrementalHoareTripleChecker+Valid, 16 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2023-12-25 09:39:36,655 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [279 Valid, 821 Invalid, 23 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [7 Valid, 16 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2023-12-25 09:39:36,663 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 13894 states. [2023-12-25 09:39:36,766 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 13894 to 12291. [2023-12-25 09:39:36,775 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 12291 states, 12289 states have (on average 1.374725364146798) internal successors, (16894), 12290 states have internal predecessors, (16894), 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) [2023-12-25 09:39:36,790 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 12291 states to 12291 states and 16894 transitions. [2023-12-25 09:39:36,790 INFO L78 Accepts]: Start accepts. Automaton has 12291 states and 16894 transitions. Word has length 71 [2023-12-25 09:39:36,790 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-25 09:39:36,791 INFO L495 AbstractCegarLoop]: Abstraction has 12291 states and 16894 transitions. [2023-12-25 09:39:36,791 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), 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) [2023-12-25 09:39:36,791 INFO L276 IsEmpty]: Start isEmpty. Operand 12291 states and 16894 transitions. [2023-12-25 09:39:36,793 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 72 [2023-12-25 09:39:36,793 INFO L187 NwaCegarLoop]: Found error trace [2023-12-25 09:39:36,794 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] [2023-12-25 09:39:36,799 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (22)] Forceful destruction successful, exit code 0 [2023-12-25 09:39:36,996 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 [2023-12-25 09:39:36,996 INFO L420 AbstractCegarLoop]: === Iteration 22 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-25 09:39:36,997 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-25 09:39:36,997 INFO L85 PathProgramCache]: Analyzing trace with hash -221734117, now seen corresponding path program 1 times [2023-12-25 09:39:36,997 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-12-25 09:39:36,997 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1643065777] [2023-12-25 09:39:36,997 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-25 09:39:36,997 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 [2023-12-25 09:39:36,997 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2023-12-25 09:39:36,998 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) [2023-12-25 09:39:36,999 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 [2023-12-25 09:39:37,119 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-25 09:39:37,122 INFO L262 TraceCheckSpWp]: Trace formula consists of 234 conjuncts, 5 conjunts are in the unsatisfiable core [2023-12-25 09:39:37,124 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-25 09:39:37,268 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-12-25 09:39:37,268 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-12-25 09:39:37,269 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-12-25 09:39:37,269 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1643065777] [2023-12-25 09:39:37,269 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1643065777] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-25 09:39:37,269 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-25 09:39:37,269 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2023-12-25 09:39:37,269 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1122576745] [2023-12-25 09:39:37,269 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-25 09:39:37,269 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2023-12-25 09:39:37,269 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-12-25 09:39:37,269 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2023-12-25 09:39:37,269 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=18, Unknown=0, NotChecked=0, Total=30 [2023-12-25 09:39:37,270 INFO L87 Difference]: Start difference. First operand 12291 states and 16894 transitions. Second operand has 6 states, 6 states have (on average 11.833333333333334) internal successors, (71), 5 states have internal predecessors, (71), 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) [2023-12-25 09:39:37,659 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-25 09:39:37,659 INFO L93 Difference]: Finished difference Result 27113 states and 36852 transitions. [2023-12-25 09:39:37,661 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2023-12-25 09:39:37,661 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 11.833333333333334) internal successors, (71), 5 states have internal predecessors, (71), 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 71 [2023-12-25 09:39:37,661 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-25 09:39:37,688 INFO L225 Difference]: With dead ends: 27113 [2023-12-25 09:39:37,688 INFO L226 Difference]: Without dead ends: 26451 [2023-12-25 09:39:37,695 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 74 GetRequests, 66 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 5 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=36, Invalid=54, Unknown=0, NotChecked=0, Total=90 [2023-12-25 09:39:37,695 INFO L413 NwaCegarLoop]: 352 mSDtfsCounter, 1262 mSDsluCounter, 586 mSDsCounter, 0 mSdLazyCounter, 473 mSolverCounterSat, 61 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1262 SdHoareTripleChecker+Valid, 938 SdHoareTripleChecker+Invalid, 534 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 61 IncrementalHoareTripleChecker+Valid, 473 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2023-12-25 09:39:37,696 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1262 Valid, 938 Invalid, 534 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [61 Valid, 473 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2023-12-25 09:39:37,708 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 26451 states. [2023-12-25 09:39:37,845 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 26451 to 12286. [2023-12-25 09:39:37,853 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 12286 states, 12284 states have (on average 1.3747964832302182) internal successors, (16888), 12285 states have internal predecessors, (16888), 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) [2023-12-25 09:39:37,865 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 12286 states to 12286 states and 16888 transitions. [2023-12-25 09:39:37,865 INFO L78 Accepts]: Start accepts. Automaton has 12286 states and 16888 transitions. Word has length 71 [2023-12-25 09:39:37,866 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-25 09:39:37,866 INFO L495 AbstractCegarLoop]: Abstraction has 12286 states and 16888 transitions. [2023-12-25 09:39:37,866 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 11.833333333333334) internal successors, (71), 5 states have internal predecessors, (71), 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) [2023-12-25 09:39:37,866 INFO L276 IsEmpty]: Start isEmpty. Operand 12286 states and 16888 transitions. [2023-12-25 09:39:37,868 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 72 [2023-12-25 09:39:37,868 INFO L187 NwaCegarLoop]: Found error trace [2023-12-25 09:39:37,868 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] [2023-12-25 09:39:37,871 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 (23)] Ended with exit code 0 [2023-12-25 09:39:38,069 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 [2023-12-25 09:39:38,069 INFO L420 AbstractCegarLoop]: === Iteration 23 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-25 09:39:38,069 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-25 09:39:38,069 INFO L85 PathProgramCache]: Analyzing trace with hash -1894019455, now seen corresponding path program 1 times [2023-12-25 09:39:38,070 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-12-25 09:39:38,070 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [964461476] [2023-12-25 09:39:38,070 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-25 09:39:38,070 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 [2023-12-25 09:39:38,070 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2023-12-25 09:39:38,071 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) [2023-12-25 09:39:38,092 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 [2023-12-25 09:39:38,199 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-25 09:39:38,201 INFO L262 TraceCheckSpWp]: Trace formula consists of 234 conjuncts, 18 conjunts are in the unsatisfiable core [2023-12-25 09:39:38,203 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-25 09:39:39,035 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-12-25 09:39:39,035 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-12-25 09:39:39,035 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-12-25 09:39:39,035 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [964461476] [2023-12-25 09:39:39,035 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [964461476] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-25 09:39:39,035 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-25 09:39:39,035 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [15] imperfect sequences [] total 15 [2023-12-25 09:39:39,035 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1657991698] [2023-12-25 09:39:39,035 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-25 09:39:39,036 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 15 states [2023-12-25 09:39:39,036 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-12-25 09:39:39,036 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 15 interpolants. [2023-12-25 09:39:39,036 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=54, Invalid=156, Unknown=0, NotChecked=0, Total=210 [2023-12-25 09:39:39,036 INFO L87 Difference]: Start difference. First operand 12286 states and 16888 transitions. Second operand has 15 states, 15 states have (on average 4.733333333333333) internal successors, (71), 15 states have internal predecessors, (71), 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) [2023-12-25 09:39:40,562 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-25 09:39:40,562 INFO L93 Difference]: Finished difference Result 31936 states and 44197 transitions. [2023-12-25 09:39:40,563 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2023-12-25 09:39:40,563 INFO L78 Accepts]: Start accepts. Automaton has has 15 states, 15 states have (on average 4.733333333333333) internal successors, (71), 15 states have internal predecessors, (71), 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 71 [2023-12-25 09:39:40,563 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-25 09:39:40,586 INFO L225 Difference]: With dead ends: 31936 [2023-12-25 09:39:40,586 INFO L226 Difference]: Without dead ends: 23572 [2023-12-25 09:39:40,596 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 76 GetRequests, 57 SyntacticMatches, 0 SemanticMatches, 19 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 37 ImplicationChecksByTransitivity, 0.5s TimeCoverageRelationStatistics Valid=130, Invalid=290, Unknown=0, NotChecked=0, Total=420 [2023-12-25 09:39:40,597 INFO L413 NwaCegarLoop]: 368 mSDtfsCounter, 2249 mSDsluCounter, 2667 mSDsCounter, 0 mSdLazyCounter, 1044 mSolverCounterSat, 10 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2249 SdHoareTripleChecker+Valid, 3035 SdHoareTripleChecker+Invalid, 1054 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 10 IncrementalHoareTripleChecker+Valid, 1044 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.2s IncrementalHoareTripleChecker+Time [2023-12-25 09:39:40,597 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [2249 Valid, 3035 Invalid, 1054 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [10 Valid, 1044 Invalid, 0 Unknown, 0 Unchecked, 1.2s Time] [2023-12-25 09:39:40,609 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 23572 states. [2023-12-25 09:39:40,745 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 23572 to 14516. [2023-12-25 09:39:40,754 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 14516 states, 14514 states have (on average 1.3790133664048505) internal successors, (20015), 14515 states have internal predecessors, (20015), 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) [2023-12-25 09:39:40,770 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 14516 states to 14516 states and 20015 transitions. [2023-12-25 09:39:40,770 INFO L78 Accepts]: Start accepts. Automaton has 14516 states and 20015 transitions. Word has length 71 [2023-12-25 09:39:40,770 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-25 09:39:40,770 INFO L495 AbstractCegarLoop]: Abstraction has 14516 states and 20015 transitions. [2023-12-25 09:39:40,771 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 15 states, 15 states have (on average 4.733333333333333) internal successors, (71), 15 states have internal predecessors, (71), 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) [2023-12-25 09:39:40,771 INFO L276 IsEmpty]: Start isEmpty. Operand 14516 states and 20015 transitions. [2023-12-25 09:39:40,773 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 73 [2023-12-25 09:39:40,774 INFO L187 NwaCegarLoop]: Found error trace [2023-12-25 09:39:40,774 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] [2023-12-25 09:39:40,776 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 [2023-12-25 09:39:40,974 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 [2023-12-25 09:39:40,974 INFO L420 AbstractCegarLoop]: === Iteration 24 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-25 09:39:40,974 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-25 09:39:40,975 INFO L85 PathProgramCache]: Analyzing trace with hash 590821425, now seen corresponding path program 1 times [2023-12-25 09:39:40,975 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-12-25 09:39:40,975 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1641762648] [2023-12-25 09:39:40,975 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-25 09:39:40,975 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 [2023-12-25 09:39:40,975 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2023-12-25 09:39:40,976 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) [2023-12-25 09:39:40,976 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 [2023-12-25 09:39:41,096 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-25 09:39:41,099 INFO L262 TraceCheckSpWp]: Trace formula consists of 237 conjuncts, 2 conjunts are in the unsatisfiable core [2023-12-25 09:39:41,100 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-25 09:39:41,123 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-12-25 09:39:41,124 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-12-25 09:39:41,124 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-12-25 09:39:41,124 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1641762648] [2023-12-25 09:39:41,124 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1641762648] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-25 09:39:41,124 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-25 09:39:41,124 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2023-12-25 09:39:41,124 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1912457022] [2023-12-25 09:39:41,124 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-25 09:39:41,124 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-12-25 09:39:41,124 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-12-25 09:39:41,125 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-12-25 09:39:41,125 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-12-25 09:39:41,125 INFO L87 Difference]: Start difference. First operand 14516 states and 20015 transitions. Second operand has 3 states, 3 states have (on average 24.0) internal successors, (72), 3 states have internal predecessors, (72), 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) [2023-12-25 09:39:41,176 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-25 09:39:41,177 INFO L93 Difference]: Finished difference Result 17788 states and 24498 transitions. [2023-12-25 09:39:41,177 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-12-25 09:39:41,177 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 24.0) internal successors, (72), 3 states have internal predecessors, (72), 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 72 [2023-12-25 09:39:41,177 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-25 09:39:41,188 INFO L225 Difference]: With dead ends: 17788 [2023-12-25 09:39:41,189 INFO L226 Difference]: Without dead ends: 11137 [2023-12-25 09:39:41,195 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 71 GetRequests, 70 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-12-25 09:39:41,196 INFO L413 NwaCegarLoop]: 482 mSDtfsCounter, 288 mSDsluCounter, 246 mSDsCounter, 0 mSdLazyCounter, 13 mSolverCounterSat, 4 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 288 SdHoareTripleChecker+Valid, 728 SdHoareTripleChecker+Invalid, 17 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 4 IncrementalHoareTripleChecker+Valid, 13 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2023-12-25 09:39:41,196 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [288 Valid, 728 Invalid, 17 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [4 Valid, 13 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2023-12-25 09:39:41,202 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 11137 states. [2023-12-25 09:39:41,298 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 11137 to 8564. [2023-12-25 09:39:41,303 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 8564 states, 8562 states have (on average 1.3585610838589115) internal successors, (11632), 8563 states have internal predecessors, (11632), 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) [2023-12-25 09:39:41,311 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 8564 states to 8564 states and 11632 transitions. [2023-12-25 09:39:41,311 INFO L78 Accepts]: Start accepts. Automaton has 8564 states and 11632 transitions. Word has length 72 [2023-12-25 09:39:41,311 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-25 09:39:41,311 INFO L495 AbstractCegarLoop]: Abstraction has 8564 states and 11632 transitions. [2023-12-25 09:39:41,312 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 24.0) internal successors, (72), 3 states have internal predecessors, (72), 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) [2023-12-25 09:39:41,312 INFO L276 IsEmpty]: Start isEmpty. Operand 8564 states and 11632 transitions. [2023-12-25 09:39:41,314 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 74 [2023-12-25 09:39:41,314 INFO L187 NwaCegarLoop]: Found error trace [2023-12-25 09:39:41,314 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] [2023-12-25 09:39:41,316 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 (25)] Ended with exit code 0 [2023-12-25 09:39:41,514 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 [2023-12-25 09:39:41,514 INFO L420 AbstractCegarLoop]: === Iteration 25 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-25 09:39:41,515 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-25 09:39:41,515 INFO L85 PathProgramCache]: Analyzing trace with hash 1280406820, now seen corresponding path program 1 times [2023-12-25 09:39:41,515 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-12-25 09:39:41,515 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1427219373] [2023-12-25 09:39:41,515 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-25 09:39:41,515 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 [2023-12-25 09:39:41,516 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2023-12-25 09:39:41,516 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) [2023-12-25 09:39:41,517 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 [2023-12-25 09:39:41,631 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-25 09:39:41,634 INFO L262 TraceCheckSpWp]: Trace formula consists of 238 conjuncts, 8 conjunts are in the unsatisfiable core [2023-12-25 09:39:41,635 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-25 09:39:42,000 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-12-25 09:39:42,000 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-12-25 09:39:42,000 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-12-25 09:39:42,000 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1427219373] [2023-12-25 09:39:42,000 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1427219373] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-25 09:39:42,000 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-25 09:39:42,000 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2023-12-25 09:39:42,000 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2034437703] [2023-12-25 09:39:42,001 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-25 09:39:42,001 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2023-12-25 09:39:42,001 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-12-25 09:39:42,001 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2023-12-25 09:39:42,001 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=18, Invalid=38, Unknown=0, NotChecked=0, Total=56 [2023-12-25 09:39:42,001 INFO L87 Difference]: Start difference. First operand 8564 states and 11632 transitions. Second operand has 8 states, 8 states have (on average 9.125) internal successors, (73), 7 states have internal predecessors, (73), 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) [2023-12-25 09:39:42,944 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-25 09:39:42,945 INFO L93 Difference]: Finished difference Result 8829 states and 11978 transitions. [2023-12-25 09:39:42,945 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2023-12-25 09:39:42,945 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 8 states have (on average 9.125) internal successors, (73), 7 states have internal predecessors, (73), 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 73 [2023-12-25 09:39:42,945 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-25 09:39:42,954 INFO L225 Difference]: With dead ends: 8829 [2023-12-25 09:39:42,955 INFO L226 Difference]: Without dead ends: 8711 [2023-12-25 09:39:42,956 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 79 GetRequests, 66 SyntacticMatches, 0 SemanticMatches, 13 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 15 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=68, Invalid=142, Unknown=0, NotChecked=0, Total=210 [2023-12-25 09:39:42,957 INFO L413 NwaCegarLoop]: 332 mSDtfsCounter, 1254 mSDsluCounter, 921 mSDsCounter, 0 mSdLazyCounter, 797 mSolverCounterSat, 17 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1254 SdHoareTripleChecker+Valid, 1253 SdHoareTripleChecker+Invalid, 814 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 17 IncrementalHoareTripleChecker+Valid, 797 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.8s IncrementalHoareTripleChecker+Time [2023-12-25 09:39:42,957 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1254 Valid, 1253 Invalid, 814 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [17 Valid, 797 Invalid, 0 Unknown, 0 Unchecked, 0.8s Time] [2023-12-25 09:39:42,960 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 8711 states. [2023-12-25 09:39:43,012 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 8711 to 8564. [2023-12-25 09:39:43,018 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 8564 states, 8562 states have (on average 1.3584442887175894) internal successors, (11631), 8563 states have internal predecessors, (11631), 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) [2023-12-25 09:39:43,026 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 8564 states to 8564 states and 11631 transitions. [2023-12-25 09:39:43,026 INFO L78 Accepts]: Start accepts. Automaton has 8564 states and 11631 transitions. Word has length 73 [2023-12-25 09:39:43,027 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-25 09:39:43,027 INFO L495 AbstractCegarLoop]: Abstraction has 8564 states and 11631 transitions. [2023-12-25 09:39:43,027 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 8 states have (on average 9.125) internal successors, (73), 7 states have internal predecessors, (73), 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) [2023-12-25 09:39:43,027 INFO L276 IsEmpty]: Start isEmpty. Operand 8564 states and 11631 transitions. [2023-12-25 09:39:43,029 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 74 [2023-12-25 09:39:43,029 INFO L187 NwaCegarLoop]: Found error trace [2023-12-25 09:39:43,029 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] [2023-12-25 09:39:43,032 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 (26)] Ended with exit code 0 [2023-12-25 09:39:43,229 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 [2023-12-25 09:39:43,230 INFO L420 AbstractCegarLoop]: === Iteration 26 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-25 09:39:43,230 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-25 09:39:43,230 INFO L85 PathProgramCache]: Analyzing trace with hash -158211886, now seen corresponding path program 1 times [2023-12-25 09:39:43,230 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-12-25 09:39:43,231 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [167172828] [2023-12-25 09:39:43,231 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-25 09:39:43,231 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 [2023-12-25 09:39:43,231 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2023-12-25 09:39:43,232 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) [2023-12-25 09:39:43,232 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (27)] Waiting until timeout for monitored process [2023-12-25 09:39:43,352 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-25 09:39:43,355 INFO L262 TraceCheckSpWp]: Trace formula consists of 239 conjuncts, 8 conjunts are in the unsatisfiable core [2023-12-25 09:39:43,356 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-25 09:39:43,764 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-12-25 09:39:43,765 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-12-25 09:39:43,765 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-12-25 09:39:43,765 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [167172828] [2023-12-25 09:39:43,765 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [167172828] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-25 09:39:43,765 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-25 09:39:43,765 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2023-12-25 09:39:43,765 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1181500453] [2023-12-25 09:39:43,765 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-25 09:39:43,765 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2023-12-25 09:39:43,765 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-12-25 09:39:43,766 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2023-12-25 09:39:43,766 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=18, Invalid=38, Unknown=0, NotChecked=0, Total=56 [2023-12-25 09:39:43,766 INFO L87 Difference]: Start difference. First operand 8564 states and 11631 transitions. Second operand has 8 states, 8 states have (on average 9.125) internal successors, (73), 7 states have internal predecessors, (73), 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) [2023-12-25 09:39:44,678 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-25 09:39:44,678 INFO L93 Difference]: Finished difference Result 8824 states and 11972 transitions. [2023-12-25 09:39:44,678 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2023-12-25 09:39:44,678 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 8 states have (on average 9.125) internal successors, (73), 7 states have internal predecessors, (73), 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 73 [2023-12-25 09:39:44,678 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-25 09:39:44,686 INFO L225 Difference]: With dead ends: 8824 [2023-12-25 09:39:44,686 INFO L226 Difference]: Without dead ends: 8707 [2023-12-25 09:39:44,688 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 79 GetRequests, 66 SyntacticMatches, 0 SemanticMatches, 13 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 15 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=68, Invalid=142, Unknown=0, NotChecked=0, Total=210 [2023-12-25 09:39:44,688 INFO L413 NwaCegarLoop]: 316 mSDtfsCounter, 1126 mSDsluCounter, 892 mSDsCounter, 0 mSdLazyCounter, 795 mSolverCounterSat, 17 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1126 SdHoareTripleChecker+Valid, 1208 SdHoareTripleChecker+Invalid, 812 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 17 IncrementalHoareTripleChecker+Valid, 795 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.8s IncrementalHoareTripleChecker+Time [2023-12-25 09:39:44,688 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1126 Valid, 1208 Invalid, 812 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [17 Valid, 795 Invalid, 0 Unknown, 0 Unchecked, 0.8s Time] [2023-12-25 09:39:44,692 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 8707 states. [2023-12-25 09:39:44,748 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 8707 to 8560. [2023-12-25 09:39:44,753 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 8560 states, 8558 states have (on average 1.3581444262678195) internal successors, (11623), 8559 states have internal predecessors, (11623), 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) [2023-12-25 09:39:44,761 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 8560 states to 8560 states and 11623 transitions. [2023-12-25 09:39:44,761 INFO L78 Accepts]: Start accepts. Automaton has 8560 states and 11623 transitions. Word has length 73 [2023-12-25 09:39:44,762 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-25 09:39:44,762 INFO L495 AbstractCegarLoop]: Abstraction has 8560 states and 11623 transitions. [2023-12-25 09:39:44,762 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 8 states have (on average 9.125) internal successors, (73), 7 states have internal predecessors, (73), 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) [2023-12-25 09:39:44,762 INFO L276 IsEmpty]: Start isEmpty. Operand 8560 states and 11623 transitions. [2023-12-25 09:39:44,764 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 75 [2023-12-25 09:39:44,764 INFO L187 NwaCegarLoop]: Found error trace [2023-12-25 09:39:44,764 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] [2023-12-25 09:39:44,767 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (27)] Ended with exit code 0 [2023-12-25 09:39:44,965 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 [2023-12-25 09:39:44,965 INFO L420 AbstractCegarLoop]: === Iteration 27 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-25 09:39:44,965 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-25 09:39:44,965 INFO L85 PathProgramCache]: Analyzing trace with hash -535922221, now seen corresponding path program 1 times [2023-12-25 09:39:44,966 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-12-25 09:39:44,966 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1398007637] [2023-12-25 09:39:44,966 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-25 09:39:44,966 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 [2023-12-25 09:39:44,966 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2023-12-25 09:39:44,967 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) [2023-12-25 09:39:44,972 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (28)] Waiting until timeout for monitored process [2023-12-25 09:39:45,093 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-25 09:39:45,096 INFO L262 TraceCheckSpWp]: Trace formula consists of 238 conjuncts, 8 conjunts are in the unsatisfiable core [2023-12-25 09:39:45,097 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-25 09:39:45,484 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-12-25 09:39:45,484 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-12-25 09:39:45,485 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-12-25 09:39:45,485 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1398007637] [2023-12-25 09:39:45,485 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1398007637] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-25 09:39:45,485 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-25 09:39:45,485 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2023-12-25 09:39:45,485 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [986116060] [2023-12-25 09:39:45,485 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-25 09:39:45,485 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2023-12-25 09:39:45,485 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-12-25 09:39:45,485 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2023-12-25 09:39:45,486 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=18, Invalid=38, Unknown=0, NotChecked=0, Total=56 [2023-12-25 09:39:45,486 INFO L87 Difference]: Start difference. First operand 8560 states and 11623 transitions. Second operand has 8 states, 8 states have (on average 9.25) internal successors, (74), 7 states have internal predecessors, (74), 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) [2023-12-25 09:39:46,423 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-25 09:39:46,423 INFO L93 Difference]: Finished difference Result 8822 states and 11966 transitions. [2023-12-25 09:39:46,424 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2023-12-25 09:39:46,424 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 8 states have (on average 9.25) internal successors, (74), 7 states have internal predecessors, (74), 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 74 [2023-12-25 09:39:46,424 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-25 09:39:46,433 INFO L225 Difference]: With dead ends: 8822 [2023-12-25 09:39:46,433 INFO L226 Difference]: Without dead ends: 8707 [2023-12-25 09:39:46,435 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 80 GetRequests, 67 SyntacticMatches, 0 SemanticMatches, 13 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 15 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=68, Invalid=142, Unknown=0, NotChecked=0, Total=210 [2023-12-25 09:39:46,435 INFO L413 NwaCegarLoop]: 325 mSDtfsCounter, 1107 mSDsluCounter, 910 mSDsCounter, 0 mSdLazyCounter, 789 mSolverCounterSat, 17 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1107 SdHoareTripleChecker+Valid, 1235 SdHoareTripleChecker+Invalid, 806 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 17 IncrementalHoareTripleChecker+Valid, 789 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.8s IncrementalHoareTripleChecker+Time [2023-12-25 09:39:46,435 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1107 Valid, 1235 Invalid, 806 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [17 Valid, 789 Invalid, 0 Unknown, 0 Unchecked, 0.8s Time] [2023-12-25 09:39:46,440 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 8707 states. [2023-12-25 09:39:46,495 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 8707 to 8560. [2023-12-25 09:39:46,501 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 8560 states, 8558 states have (on average 1.358027576536574) internal successors, (11622), 8559 states have internal predecessors, (11622), 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) [2023-12-25 09:39:46,509 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 8560 states to 8560 states and 11622 transitions. [2023-12-25 09:39:46,510 INFO L78 Accepts]: Start accepts. Automaton has 8560 states and 11622 transitions. Word has length 74 [2023-12-25 09:39:46,510 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-25 09:39:46,510 INFO L495 AbstractCegarLoop]: Abstraction has 8560 states and 11622 transitions. [2023-12-25 09:39:46,510 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 8 states have (on average 9.25) internal successors, (74), 7 states have internal predecessors, (74), 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) [2023-12-25 09:39:46,510 INFO L276 IsEmpty]: Start isEmpty. Operand 8560 states and 11622 transitions. [2023-12-25 09:39:46,512 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 75 [2023-12-25 09:39:46,513 INFO L187 NwaCegarLoop]: Found error trace [2023-12-25 09:39:46,513 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] [2023-12-25 09:39:46,516 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 (28)] Ended with exit code 0 [2023-12-25 09:39:46,713 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 [2023-12-25 09:39:46,713 INFO L420 AbstractCegarLoop]: === Iteration 28 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-25 09:39:46,713 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-25 09:39:46,714 INFO L85 PathProgramCache]: Analyzing trace with hash 2086759737, now seen corresponding path program 1 times [2023-12-25 09:39:46,714 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-12-25 09:39:46,714 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [573322838] [2023-12-25 09:39:46,714 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-25 09:39:46,714 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 [2023-12-25 09:39:46,714 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2023-12-25 09:39:46,715 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) [2023-12-25 09:39:46,715 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 [2023-12-25 09:39:46,837 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-25 09:39:46,840 INFO L262 TraceCheckSpWp]: Trace formula consists of 238 conjuncts, 8 conjunts are in the unsatisfiable core [2023-12-25 09:39:46,842 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-25 09:39:47,210 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-12-25 09:39:47,210 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-12-25 09:39:47,210 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-12-25 09:39:47,210 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [573322838] [2023-12-25 09:39:47,210 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [573322838] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-25 09:39:47,210 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-25 09:39:47,210 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2023-12-25 09:39:47,210 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1283947748] [2023-12-25 09:39:47,210 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-25 09:39:47,211 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2023-12-25 09:39:47,211 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-12-25 09:39:47,211 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2023-12-25 09:39:47,211 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=18, Invalid=38, Unknown=0, NotChecked=0, Total=56 [2023-12-25 09:39:47,211 INFO L87 Difference]: Start difference. First operand 8560 states and 11622 transitions. Second operand has 8 states, 8 states have (on average 9.25) internal successors, (74), 7 states have internal predecessors, (74), 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) [2023-12-25 09:39:48,105 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-25 09:39:48,105 INFO L93 Difference]: Finished difference Result 8846 states and 11992 transitions. [2023-12-25 09:39:48,105 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2023-12-25 09:39:48,105 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 8 states have (on average 9.25) internal successors, (74), 7 states have internal predecessors, (74), 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 74 [2023-12-25 09:39:48,106 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-25 09:39:48,111 INFO L225 Difference]: With dead ends: 8846 [2023-12-25 09:39:48,112 INFO L226 Difference]: Without dead ends: 8721 [2023-12-25 09:39:48,112 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 80 GetRequests, 67 SyntacticMatches, 0 SemanticMatches, 13 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 15 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=68, Invalid=142, Unknown=0, NotChecked=0, Total=210 [2023-12-25 09:39:48,113 INFO L413 NwaCegarLoop]: 322 mSDtfsCounter, 1632 mSDsluCounter, 890 mSDsCounter, 0 mSdLazyCounter, 760 mSolverCounterSat, 14 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1632 SdHoareTripleChecker+Valid, 1212 SdHoareTripleChecker+Invalid, 774 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 14 IncrementalHoareTripleChecker+Valid, 760 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.7s IncrementalHoareTripleChecker+Time [2023-12-25 09:39:48,113 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1632 Valid, 1212 Invalid, 774 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [14 Valid, 760 Invalid, 0 Unknown, 0 Unchecked, 0.7s Time] [2023-12-25 09:39:48,115 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 8721 states. [2023-12-25 09:39:48,164 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 8721 to 8560. [2023-12-25 09:39:48,168 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 8560 states, 8558 states have (on average 1.3579107268053283) internal successors, (11621), 8559 states have internal predecessors, (11621), 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) [2023-12-25 09:39:48,176 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 8560 states to 8560 states and 11621 transitions. [2023-12-25 09:39:48,176 INFO L78 Accepts]: Start accepts. Automaton has 8560 states and 11621 transitions. Word has length 74 [2023-12-25 09:39:48,176 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-25 09:39:48,176 INFO L495 AbstractCegarLoop]: Abstraction has 8560 states and 11621 transitions. [2023-12-25 09:39:48,176 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 8 states have (on average 9.25) internal successors, (74), 7 states have internal predecessors, (74), 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) [2023-12-25 09:39:48,176 INFO L276 IsEmpty]: Start isEmpty. Operand 8560 states and 11621 transitions. [2023-12-25 09:39:48,179 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 77 [2023-12-25 09:39:48,179 INFO L187 NwaCegarLoop]: Found error trace [2023-12-25 09:39:48,179 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] [2023-12-25 09:39:48,182 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (29)] Forceful destruction successful, exit code 0 [2023-12-25 09:39:48,379 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 [2023-12-25 09:39:48,380 INFO L420 AbstractCegarLoop]: === Iteration 29 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-25 09:39:48,380 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-25 09:39:48,380 INFO L85 PathProgramCache]: Analyzing trace with hash 1865007787, now seen corresponding path program 1 times [2023-12-25 09:39:48,380 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-12-25 09:39:48,380 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1424859304] [2023-12-25 09:39:48,381 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-25 09:39:48,381 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 [2023-12-25 09:39:48,381 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2023-12-25 09:39:48,382 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) [2023-12-25 09:39:48,382 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 [2023-12-25 09:39:48,506 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-25 09:39:48,509 INFO L262 TraceCheckSpWp]: Trace formula consists of 241 conjuncts, 18 conjunts are in the unsatisfiable core [2023-12-25 09:39:48,511 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-25 09:39:49,352 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-12-25 09:39:49,352 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-12-25 09:39:49,352 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-12-25 09:39:49,352 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1424859304] [2023-12-25 09:39:49,352 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1424859304] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-25 09:39:49,352 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-25 09:39:49,352 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [16] imperfect sequences [] total 16 [2023-12-25 09:39:49,353 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [855680225] [2023-12-25 09:39:49,353 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-25 09:39:49,353 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 16 states [2023-12-25 09:39:49,353 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-12-25 09:39:49,353 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 16 interpolants. [2023-12-25 09:39:49,353 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=59, Invalid=181, Unknown=0, NotChecked=0, Total=240 [2023-12-25 09:39:49,353 INFO L87 Difference]: Start difference. First operand 8560 states and 11621 transitions. Second operand has 16 states, 16 states have (on average 4.75) internal successors, (76), 16 states have internal predecessors, (76), 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) [2023-12-25 09:39:51,065 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-25 09:39:51,065 INFO L93 Difference]: Finished difference Result 16930 states and 22933 transitions. [2023-12-25 09:39:51,065 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 18 states. [2023-12-25 09:39:51,065 INFO L78 Accepts]: Start accepts. Automaton has has 16 states, 16 states have (on average 4.75) internal successors, (76), 16 states have internal predecessors, (76), 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 76 [2023-12-25 09:39:51,065 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-25 09:39:51,082 INFO L225 Difference]: With dead ends: 16930 [2023-12-25 09:39:51,082 INFO L226 Difference]: Without dead ends: 16756 [2023-12-25 09:39:51,087 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 83 GetRequests, 61 SyntacticMatches, 0 SemanticMatches, 22 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 59 ImplicationChecksByTransitivity, 0.7s TimeCoverageRelationStatistics Valid=163, Invalid=389, Unknown=0, NotChecked=0, Total=552 [2023-12-25 09:39:51,087 INFO L413 NwaCegarLoop]: 395 mSDtfsCounter, 1722 mSDsluCounter, 3647 mSDsCounter, 0 mSdLazyCounter, 1136 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1722 SdHoareTripleChecker+Valid, 4042 SdHoareTripleChecker+Invalid, 1137 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 1136 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.2s IncrementalHoareTripleChecker+Time [2023-12-25 09:39:51,087 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1722 Valid, 4042 Invalid, 1137 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 1136 Invalid, 0 Unknown, 0 Unchecked, 1.2s Time] [2023-12-25 09:39:51,097 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 16756 states. [2023-12-25 09:39:51,186 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 16756 to 8499. [2023-12-25 09:39:51,191 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 8499 states, 8498 states have (on average 1.3580842551188514) internal successors, (11541), 8498 states have internal predecessors, (11541), 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) [2023-12-25 09:39:51,200 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 8499 states to 8499 states and 11541 transitions. [2023-12-25 09:39:51,200 INFO L78 Accepts]: Start accepts. Automaton has 8499 states and 11541 transitions. Word has length 76 [2023-12-25 09:39:51,200 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-25 09:39:51,200 INFO L495 AbstractCegarLoop]: Abstraction has 8499 states and 11541 transitions. [2023-12-25 09:39:51,200 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 16 states, 16 states have (on average 4.75) internal successors, (76), 16 states have internal predecessors, (76), 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) [2023-12-25 09:39:51,200 INFO L276 IsEmpty]: Start isEmpty. Operand 8499 states and 11541 transitions. [2023-12-25 09:39:51,205 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 83 [2023-12-25 09:39:51,205 INFO L187 NwaCegarLoop]: Found error trace [2023-12-25 09:39:51,205 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] [2023-12-25 09:39:51,210 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 [2023-12-25 09:39:51,407 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 [2023-12-25 09:39:51,407 INFO L420 AbstractCegarLoop]: === Iteration 30 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-25 09:39:51,407 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-25 09:39:51,407 INFO L85 PathProgramCache]: Analyzing trace with hash -1034983288, now seen corresponding path program 1 times [2023-12-25 09:39:51,408 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-12-25 09:39:51,408 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [449760630] [2023-12-25 09:39:51,408 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-25 09:39:51,408 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 [2023-12-25 09:39:51,408 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2023-12-25 09:39:51,409 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) [2023-12-25 09:39:51,409 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 [2023-12-25 09:39:51,530 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-25 09:39:51,533 INFO L262 TraceCheckSpWp]: Trace formula consists of 256 conjuncts, 8 conjunts are in the unsatisfiable core [2023-12-25 09:39:51,534 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-25 09:39:51,814 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-12-25 09:39:51,814 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-12-25 09:39:51,814 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-12-25 09:39:51,814 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [449760630] [2023-12-25 09:39:51,815 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [449760630] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-25 09:39:51,815 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-25 09:39:51,815 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2023-12-25 09:39:51,815 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1860796249] [2023-12-25 09:39:51,815 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-25 09:39:51,815 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2023-12-25 09:39:51,815 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-12-25 09:39:51,815 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2023-12-25 09:39:51,815 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=18, Invalid=38, Unknown=0, NotChecked=0, Total=56 [2023-12-25 09:39:51,815 INFO L87 Difference]: Start difference. First operand 8499 states and 11541 transitions. Second operand has 8 states, 8 states have (on average 10.25) internal successors, (82), 7 states have internal predecessors, (82), 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) [2023-12-25 09:39:52,602 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-25 09:39:52,603 INFO L93 Difference]: Finished difference Result 10592 states and 14391 transitions. [2023-12-25 09:39:52,603 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2023-12-25 09:39:52,603 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 8 states have (on average 10.25) internal successors, (82), 7 states have internal predecessors, (82), 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 82 [2023-12-25 09:39:52,604 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-25 09:39:52,611 INFO L225 Difference]: With dead ends: 10592 [2023-12-25 09:39:52,611 INFO L226 Difference]: Without dead ends: 8115 [2023-12-25 09:39:52,614 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 88 GetRequests, 75 SyntacticMatches, 0 SemanticMatches, 13 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 15 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=68, Invalid=142, Unknown=0, NotChecked=0, Total=210 [2023-12-25 09:39:52,614 INFO L413 NwaCegarLoop]: 286 mSDtfsCounter, 1467 mSDsluCounter, 783 mSDsCounter, 0 mSdLazyCounter, 661 mSolverCounterSat, 13 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1467 SdHoareTripleChecker+Valid, 1069 SdHoareTripleChecker+Invalid, 674 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 13 IncrementalHoareTripleChecker+Valid, 661 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.6s IncrementalHoareTripleChecker+Time [2023-12-25 09:39:52,614 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1467 Valid, 1069 Invalid, 674 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [13 Valid, 661 Invalid, 0 Unknown, 0 Unchecked, 0.6s Time] [2023-12-25 09:39:52,618 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 8115 states. [2023-12-25 09:39:52,686 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 8115 to 8065. [2023-12-25 09:39:52,690 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 8065 states, 8064 states have (on average 1.357514880952381) internal successors, (10947), 8064 states have internal predecessors, (10947), 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) [2023-12-25 09:39:52,698 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 8065 states to 8065 states and 10947 transitions. [2023-12-25 09:39:52,698 INFO L78 Accepts]: Start accepts. Automaton has 8065 states and 10947 transitions. Word has length 82 [2023-12-25 09:39:52,698 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-25 09:39:52,698 INFO L495 AbstractCegarLoop]: Abstraction has 8065 states and 10947 transitions. [2023-12-25 09:39:52,698 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 8 states have (on average 10.25) internal successors, (82), 7 states have internal predecessors, (82), 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) [2023-12-25 09:39:52,698 INFO L276 IsEmpty]: Start isEmpty. Operand 8065 states and 10947 transitions. [2023-12-25 09:39:52,701 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 83 [2023-12-25 09:39:52,702 INFO L187 NwaCegarLoop]: Found error trace [2023-12-25 09:39:52,702 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] [2023-12-25 09:39:52,704 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (31)] Ended with exit code 0 [2023-12-25 09:39:52,904 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 [2023-12-25 09:39:52,904 INFO L420 AbstractCegarLoop]: === Iteration 31 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-25 09:39:52,904 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-25 09:39:52,904 INFO L85 PathProgramCache]: Analyzing trace with hash 792348475, now seen corresponding path program 1 times [2023-12-25 09:39:52,905 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-12-25 09:39:52,905 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [298997462] [2023-12-25 09:39:52,905 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-25 09:39:52,905 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2023-12-25 09:39:52,905 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2023-12-25 09:39:52,906 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) [2023-12-25 09:39:52,907 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 [2023-12-25 09:39:53,032 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-25 09:39:53,035 INFO L262 TraceCheckSpWp]: Trace formula consists of 256 conjuncts, 8 conjunts are in the unsatisfiable core [2023-12-25 09:39:53,036 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-25 09:39:53,314 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-12-25 09:39:53,314 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-12-25 09:39:53,314 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-12-25 09:39:53,314 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [298997462] [2023-12-25 09:39:53,314 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [298997462] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-25 09:39:53,314 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-25 09:39:53,314 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2023-12-25 09:39:53,314 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1105937723] [2023-12-25 09:39:53,314 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-25 09:39:53,315 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2023-12-25 09:39:53,315 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-12-25 09:39:53,315 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2023-12-25 09:39:53,315 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=18, Invalid=38, Unknown=0, NotChecked=0, Total=56 [2023-12-25 09:39:53,315 INFO L87 Difference]: Start difference. First operand 8065 states and 10947 transitions. Second operand has 8 states, 8 states have (on average 10.25) internal successors, (82), 7 states have internal predecessors, (82), 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) [2023-12-25 09:39:54,127 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-25 09:39:54,127 INFO L93 Difference]: Finished difference Result 10920 states and 14855 transitions. [2023-12-25 09:39:54,127 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2023-12-25 09:39:54,127 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 8 states have (on average 10.25) internal successors, (82), 7 states have internal predecessors, (82), 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 82 [2023-12-25 09:39:54,127 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-25 09:39:54,133 INFO L225 Difference]: With dead ends: 10920 [2023-12-25 09:39:54,133 INFO L226 Difference]: Without dead ends: 8073 [2023-12-25 09:39:54,135 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 88 GetRequests, 75 SyntacticMatches, 0 SemanticMatches, 13 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 15 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=68, Invalid=142, Unknown=0, NotChecked=0, Total=210 [2023-12-25 09:39:54,135 INFO L413 NwaCegarLoop]: 296 mSDtfsCounter, 997 mSDsluCounter, 863 mSDsCounter, 0 mSdLazyCounter, 704 mSolverCounterSat, 15 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 997 SdHoareTripleChecker+Valid, 1159 SdHoareTripleChecker+Invalid, 719 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 15 IncrementalHoareTripleChecker+Valid, 704 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.7s IncrementalHoareTripleChecker+Time [2023-12-25 09:39:54,136 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [997 Valid, 1159 Invalid, 719 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [15 Valid, 704 Invalid, 0 Unknown, 0 Unchecked, 0.7s Time] [2023-12-25 09:39:54,138 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 8073 states. [2023-12-25 09:39:54,182 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 8073 to 8037. [2023-12-25 09:39:54,186 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 8037 states, 8036 states have (on average 1.3571428571428572) internal successors, (10906), 8036 states have internal predecessors, (10906), 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) [2023-12-25 09:39:54,193 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 8037 states to 8037 states and 10906 transitions. [2023-12-25 09:39:54,193 INFO L78 Accepts]: Start accepts. Automaton has 8037 states and 10906 transitions. Word has length 82 [2023-12-25 09:39:54,193 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-25 09:39:54,193 INFO L495 AbstractCegarLoop]: Abstraction has 8037 states and 10906 transitions. [2023-12-25 09:39:54,193 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 8 states have (on average 10.25) internal successors, (82), 7 states have internal predecessors, (82), 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) [2023-12-25 09:39:54,193 INFO L276 IsEmpty]: Start isEmpty. Operand 8037 states and 10906 transitions. [2023-12-25 09:39:54,196 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 84 [2023-12-25 09:39:54,196 INFO L187 NwaCegarLoop]: Found error trace [2023-12-25 09:39:54,196 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] [2023-12-25 09:39:54,199 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 (32)] Ended with exit code 0 [2023-12-25 09:39:54,399 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 [2023-12-25 09:39:54,399 INFO L420 AbstractCegarLoop]: === Iteration 32 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-25 09:39:54,399 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-25 09:39:54,399 INFO L85 PathProgramCache]: Analyzing trace with hash -1414813799, now seen corresponding path program 1 times [2023-12-25 09:39:54,400 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-12-25 09:39:54,400 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [576169900] [2023-12-25 09:39:54,400 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-25 09:39:54,400 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 [2023-12-25 09:39:54,400 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2023-12-25 09:39:54,401 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) [2023-12-25 09:39:54,401 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 [2023-12-25 09:39:54,525 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-25 09:39:54,527 INFO L262 TraceCheckSpWp]: Trace formula consists of 258 conjuncts, 2 conjunts are in the unsatisfiable core [2023-12-25 09:39:54,529 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-25 09:39:54,544 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-12-25 09:39:54,544 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-12-25 09:39:54,544 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-12-25 09:39:54,544 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [576169900] [2023-12-25 09:39:54,544 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [576169900] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-25 09:39:54,545 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-25 09:39:54,545 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2023-12-25 09:39:54,545 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1313178958] [2023-12-25 09:39:54,545 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-25 09:39:54,545 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-12-25 09:39:54,545 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-12-25 09:39:54,545 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-12-25 09:39:54,545 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-12-25 09:39:54,545 INFO L87 Difference]: Start difference. First operand 8037 states and 10906 transitions. Second operand has 3 states, 3 states have (on average 27.666666666666668) internal successors, (83), 3 states have internal predecessors, (83), 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) [2023-12-25 09:39:54,633 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-25 09:39:54,633 INFO L93 Difference]: Finished difference Result 20781 states and 28586 transitions. [2023-12-25 09:39:54,633 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-12-25 09:39:54,634 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 27.666666666666668) internal successors, (83), 3 states have internal predecessors, (83), 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 83 [2023-12-25 09:39:54,634 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-25 09:39:54,648 INFO L225 Difference]: With dead ends: 20781 [2023-12-25 09:39:54,648 INFO L226 Difference]: Without dead ends: 13446 [2023-12-25 09:39:54,656 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 82 GetRequests, 81 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-12-25 09:39:54,656 INFO L413 NwaCegarLoop]: 410 mSDtfsCounter, 153 mSDsluCounter, 252 mSDsCounter, 0 mSdLazyCounter, 13 mSolverCounterSat, 6 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 153 SdHoareTripleChecker+Valid, 662 SdHoareTripleChecker+Invalid, 19 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 6 IncrementalHoareTripleChecker+Valid, 13 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2023-12-25 09:39:54,658 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [153 Valid, 662 Invalid, 19 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [6 Valid, 13 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2023-12-25 09:39:54,666 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 13446 states. [2023-12-25 09:39:54,786 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 13446 to 12724. [2023-12-25 09:39:54,794 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 12724 states, 12723 states have (on average 1.3635934921009196) internal successors, (17349), 12723 states have internal predecessors, (17349), 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) [2023-12-25 09:39:54,808 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 12724 states to 12724 states and 17349 transitions. [2023-12-25 09:39:54,808 INFO L78 Accepts]: Start accepts. Automaton has 12724 states and 17349 transitions. Word has length 83 [2023-12-25 09:39:54,808 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-25 09:39:54,808 INFO L495 AbstractCegarLoop]: Abstraction has 12724 states and 17349 transitions. [2023-12-25 09:39:54,808 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 27.666666666666668) internal successors, (83), 3 states have internal predecessors, (83), 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) [2023-12-25 09:39:54,808 INFO L276 IsEmpty]: Start isEmpty. Operand 12724 states and 17349 transitions. [2023-12-25 09:39:54,811 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 85 [2023-12-25 09:39:54,811 INFO L187 NwaCegarLoop]: Found error trace [2023-12-25 09:39:54,811 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] [2023-12-25 09:39:54,813 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (33)] Ended with exit code 0 [2023-12-25 09:39:55,011 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 [2023-12-25 09:39:55,011 INFO L420 AbstractCegarLoop]: === Iteration 33 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-25 09:39:55,012 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-25 09:39:55,012 INFO L85 PathProgramCache]: Analyzing trace with hash -755021834, now seen corresponding path program 1 times [2023-12-25 09:39:55,012 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-12-25 09:39:55,012 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [867511357] [2023-12-25 09:39:55,012 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-25 09:39:55,012 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 [2023-12-25 09:39:55,013 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2023-12-25 09:39:55,013 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) [2023-12-25 09:39:55,014 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 [2023-12-25 09:39:55,141 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-25 09:39:55,144 INFO L262 TraceCheckSpWp]: Trace formula consists of 257 conjuncts, 2 conjunts are in the unsatisfiable core [2023-12-25 09:39:55,145 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-25 09:39:55,161 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-12-25 09:39:55,162 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-12-25 09:39:55,162 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-12-25 09:39:55,162 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [867511357] [2023-12-25 09:39:55,162 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [867511357] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-25 09:39:55,162 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-25 09:39:55,162 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2023-12-25 09:39:55,162 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [33416087] [2023-12-25 09:39:55,162 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-25 09:39:55,162 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-12-25 09:39:55,162 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-12-25 09:39:55,163 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-12-25 09:39:55,163 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-12-25 09:39:55,163 INFO L87 Difference]: Start difference. First operand 12724 states and 17349 transitions. Second operand has 3 states, 3 states have (on average 28.0) internal successors, (84), 3 states have internal predecessors, (84), 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) [2023-12-25 09:39:55,245 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-25 09:39:55,245 INFO L93 Difference]: Finished difference Result 34050 states and 46877 transitions. [2023-12-25 09:39:55,245 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-12-25 09:39:55,245 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 28.0) internal successors, (84), 3 states have internal predecessors, (84), 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 84 [2023-12-25 09:39:55,245 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-25 09:39:55,266 INFO L225 Difference]: With dead ends: 34050 [2023-12-25 09:39:55,267 INFO L226 Difference]: Without dead ends: 22028 [2023-12-25 09:39:55,277 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 83 GetRequests, 82 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-12-25 09:39:55,278 INFO L413 NwaCegarLoop]: 393 mSDtfsCounter, 154 mSDsluCounter, 245 mSDsCounter, 0 mSdLazyCounter, 19 mSolverCounterSat, 6 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 154 SdHoareTripleChecker+Valid, 638 SdHoareTripleChecker+Invalid, 25 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 6 IncrementalHoareTripleChecker+Valid, 19 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2023-12-25 09:39:55,278 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [154 Valid, 638 Invalid, 25 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [6 Valid, 19 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2023-12-25 09:39:55,290 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 22028 states. [2023-12-25 09:39:55,428 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 22028 to 20486. [2023-12-25 09:39:55,443 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 20486 states, 20485 states have (on average 1.3653404930436905) internal successors, (27969), 20485 states have internal predecessors, (27969), 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) [2023-12-25 09:39:55,464 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 20486 states to 20486 states and 27969 transitions. [2023-12-25 09:39:55,464 INFO L78 Accepts]: Start accepts. Automaton has 20486 states and 27969 transitions. Word has length 84 [2023-12-25 09:39:55,465 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-25 09:39:55,465 INFO L495 AbstractCegarLoop]: Abstraction has 20486 states and 27969 transitions. [2023-12-25 09:39:55,465 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 28.0) internal successors, (84), 3 states have internal predecessors, (84), 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) [2023-12-25 09:39:55,465 INFO L276 IsEmpty]: Start isEmpty. Operand 20486 states and 27969 transitions. [2023-12-25 09:39:55,467 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 87 [2023-12-25 09:39:55,467 INFO L187 NwaCegarLoop]: Found error trace [2023-12-25 09:39:55,467 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-25 09:39:55,470 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 [2023-12-25 09:39:55,667 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 [2023-12-25 09:39:55,667 INFO L420 AbstractCegarLoop]: === Iteration 34 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-25 09:39:55,668 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-25 09:39:55,668 INFO L85 PathProgramCache]: Analyzing trace with hash 104058437, now seen corresponding path program 1 times [2023-12-25 09:39:55,668 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-12-25 09:39:55,668 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1457881590] [2023-12-25 09:39:55,668 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-25 09:39:55,668 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 [2023-12-25 09:39:55,668 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2023-12-25 09:39:55,669 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) [2023-12-25 09:39:55,670 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 [2023-12-25 09:39:55,791 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-25 09:39:55,793 INFO L262 TraceCheckSpWp]: Trace formula consists of 255 conjuncts, 8 conjunts are in the unsatisfiable core [2023-12-25 09:39:55,808 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-25 09:39:56,146 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-12-25 09:39:56,147 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-12-25 09:39:56,147 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-12-25 09:39:56,147 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1457881590] [2023-12-25 09:39:56,147 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1457881590] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-25 09:39:56,148 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-25 09:39:56,148 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2023-12-25 09:39:56,148 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1539104080] [2023-12-25 09:39:56,148 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-25 09:39:56,148 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2023-12-25 09:39:56,149 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-12-25 09:39:56,149 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2023-12-25 09:39:56,149 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=21, Invalid=51, Unknown=0, NotChecked=0, Total=72 [2023-12-25 09:39:56,149 INFO L87 Difference]: Start difference. First operand 20486 states and 27969 transitions. Second operand has 9 states, 9 states have (on average 9.555555555555555) internal successors, (86), 8 states have internal predecessors, (86), 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) [2023-12-25 09:39:57,451 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-25 09:39:57,451 INFO L93 Difference]: Finished difference Result 55863 states and 76087 transitions. [2023-12-25 09:39:57,452 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2023-12-25 09:39:57,452 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 9 states have (on average 9.555555555555555) internal successors, (86), 8 states have internal predecessors, (86), 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 86 [2023-12-25 09:39:57,452 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-25 09:39:57,490 INFO L225 Difference]: With dead ends: 55863 [2023-12-25 09:39:57,491 INFO L226 Difference]: Without dead ends: 35867 [2023-12-25 09:39:57,510 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 96 GetRequests, 78 SyntacticMatches, 0 SemanticMatches, 18 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 48 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=107, Invalid=273, Unknown=0, NotChecked=0, Total=380 [2023-12-25 09:39:57,511 INFO L413 NwaCegarLoop]: 302 mSDtfsCounter, 1783 mSDsluCounter, 1099 mSDsCounter, 0 mSdLazyCounter, 828 mSolverCounterSat, 12 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.8s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1783 SdHoareTripleChecker+Valid, 1401 SdHoareTripleChecker+Invalid, 840 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 12 IncrementalHoareTripleChecker+Valid, 828 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.9s IncrementalHoareTripleChecker+Time [2023-12-25 09:39:57,511 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1783 Valid, 1401 Invalid, 840 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [12 Valid, 828 Invalid, 0 Unknown, 0 Unchecked, 0.9s Time] [2023-12-25 09:39:57,530 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 35867 states. [2023-12-25 09:39:57,745 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 35867 to 20426. [2023-12-25 09:39:57,760 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 20426 states, 20425 states have (on average 1.365532435740514) internal successors, (27891), 20425 states have internal predecessors, (27891), 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) [2023-12-25 09:39:57,783 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 20426 states to 20426 states and 27891 transitions. [2023-12-25 09:39:57,783 INFO L78 Accepts]: Start accepts. Automaton has 20426 states and 27891 transitions. Word has length 86 [2023-12-25 09:39:57,783 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-25 09:39:57,783 INFO L495 AbstractCegarLoop]: Abstraction has 20426 states and 27891 transitions. [2023-12-25 09:39:57,783 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 9 states have (on average 9.555555555555555) internal successors, (86), 8 states have internal predecessors, (86), 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) [2023-12-25 09:39:57,784 INFO L276 IsEmpty]: Start isEmpty. Operand 20426 states and 27891 transitions. [2023-12-25 09:39:57,785 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 87 [2023-12-25 09:39:57,785 INFO L187 NwaCegarLoop]: Found error trace [2023-12-25 09:39:57,785 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] [2023-12-25 09:39:57,788 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 [2023-12-25 09:39:57,986 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 [2023-12-25 09:39:57,986 INFO L420 AbstractCegarLoop]: === Iteration 35 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-25 09:39:57,986 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-25 09:39:57,986 INFO L85 PathProgramCache]: Analyzing trace with hash -857791955, now seen corresponding path program 1 times [2023-12-25 09:39:57,987 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-12-25 09:39:57,987 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [273690813] [2023-12-25 09:39:57,987 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-25 09:39:57,987 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 [2023-12-25 09:39:57,987 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2023-12-25 09:39:57,988 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) [2023-12-25 09:39:57,989 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 [2023-12-25 09:39:58,113 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-25 09:39:58,116 INFO L262 TraceCheckSpWp]: Trace formula consists of 254 conjuncts, 8 conjunts are in the unsatisfiable core [2023-12-25 09:39:58,118 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-25 09:39:58,342 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-12-25 09:39:58,342 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-12-25 09:39:58,343 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-12-25 09:39:58,343 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [273690813] [2023-12-25 09:39:58,343 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [273690813] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-25 09:39:58,343 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-25 09:39:58,343 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2023-12-25 09:39:58,343 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [579277262] [2023-12-25 09:39:58,343 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-25 09:39:58,343 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2023-12-25 09:39:58,343 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-12-25 09:39:58,344 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2023-12-25 09:39:58,344 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=21, Invalid=51, Unknown=0, NotChecked=0, Total=72 [2023-12-25 09:39:58,344 INFO L87 Difference]: Start difference. First operand 20426 states and 27891 transitions. Second operand has 9 states, 9 states have (on average 9.555555555555555) internal successors, (86), 8 states have internal predecessors, (86), 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) [2023-12-25 09:39:59,483 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-25 09:39:59,484 INFO L93 Difference]: Finished difference Result 22488 states and 30569 transitions. [2023-12-25 09:39:59,484 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2023-12-25 09:39:59,484 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 9 states have (on average 9.555555555555555) internal successors, (86), 8 states have internal predecessors, (86), 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 86 [2023-12-25 09:39:59,484 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-25 09:39:59,503 INFO L225 Difference]: With dead ends: 22488 [2023-12-25 09:39:59,503 INFO L226 Difference]: Without dead ends: 21818 [2023-12-25 09:39:59,508 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 93 GetRequests, 78 SyntacticMatches, 0 SemanticMatches, 15 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 18 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=82, Invalid=190, Unknown=0, NotChecked=0, Total=272 [2023-12-25 09:39:59,509 INFO L413 NwaCegarLoop]: 274 mSDtfsCounter, 1015 mSDsluCounter, 1044 mSDsCounter, 0 mSdLazyCounter, 845 mSolverCounterSat, 7 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.8s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1015 SdHoareTripleChecker+Valid, 1318 SdHoareTripleChecker+Invalid, 852 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 7 IncrementalHoareTripleChecker+Valid, 845 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.8s IncrementalHoareTripleChecker+Time [2023-12-25 09:39:59,509 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1015 Valid, 1318 Invalid, 852 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [7 Valid, 845 Invalid, 0 Unknown, 0 Unchecked, 0.8s Time] [2023-12-25 09:39:59,519 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 21818 states. [2023-12-25 09:39:59,654 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 21818 to 20426. [2023-12-25 09:39:59,669 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 20426 states, 20425 states have (on average 1.365483476132191) internal successors, (27890), 20425 states have internal predecessors, (27890), 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) [2023-12-25 09:39:59,692 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 20426 states to 20426 states and 27890 transitions. [2023-12-25 09:39:59,692 INFO L78 Accepts]: Start accepts. Automaton has 20426 states and 27890 transitions. Word has length 86 [2023-12-25 09:39:59,692 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-25 09:39:59,693 INFO L495 AbstractCegarLoop]: Abstraction has 20426 states and 27890 transitions. [2023-12-25 09:39:59,693 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 9 states have (on average 9.555555555555555) internal successors, (86), 8 states have internal predecessors, (86), 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) [2023-12-25 09:39:59,693 INFO L276 IsEmpty]: Start isEmpty. Operand 20426 states and 27890 transitions. [2023-12-25 09:39:59,695 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 88 [2023-12-25 09:39:59,695 INFO L187 NwaCegarLoop]: Found error trace [2023-12-25 09:39:59,695 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] [2023-12-25 09:39:59,697 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (36)] Ended with exit code 0 [2023-12-25 09:39:59,895 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 [2023-12-25 09:39:59,895 INFO L420 AbstractCegarLoop]: === Iteration 36 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-25 09:39:59,895 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-25 09:39:59,896 INFO L85 PathProgramCache]: Analyzing trace with hash 789798694, now seen corresponding path program 1 times [2023-12-25 09:39:59,896 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-12-25 09:39:59,896 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1045558485] [2023-12-25 09:39:59,896 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-25 09:39:59,896 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 [2023-12-25 09:39:59,896 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2023-12-25 09:39:59,897 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) [2023-12-25 09:39:59,897 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 [2023-12-25 09:40:00,040 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-25 09:40:00,043 INFO L262 TraceCheckSpWp]: Trace formula consists of 257 conjuncts, 2 conjunts are in the unsatisfiable core [2023-12-25 09:40:00,045 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-25 09:40:00,080 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-12-25 09:40:00,080 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-12-25 09:40:00,081 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-12-25 09:40:00,081 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1045558485] [2023-12-25 09:40:00,081 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1045558485] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-25 09:40:00,081 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-25 09:40:00,081 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2023-12-25 09:40:00,081 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1742459398] [2023-12-25 09:40:00,081 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-25 09:40:00,081 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-12-25 09:40:00,081 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-12-25 09:40:00,082 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-12-25 09:40:00,082 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-12-25 09:40:00,082 INFO L87 Difference]: Start difference. First operand 20426 states and 27890 transitions. Second operand has 3 states, 3 states have (on average 29.0) internal successors, (87), 3 states have internal predecessors, (87), 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) [2023-12-25 09:40:00,153 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-25 09:40:00,153 INFO L93 Difference]: Finished difference Result 27017 states and 36765 transitions. [2023-12-25 09:40:00,153 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-12-25 09:40:00,153 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 29.0) internal successors, (87), 3 states have internal predecessors, (87), 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 87 [2023-12-25 09:40:00,154 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-25 09:40:00,173 INFO L225 Difference]: With dead ends: 27017 [2023-12-25 09:40:00,173 INFO L226 Difference]: Without dead ends: 18706 [2023-12-25 09:40:00,181 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 86 GetRequests, 85 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-12-25 09:40:00,182 INFO L413 NwaCegarLoop]: 474 mSDtfsCounter, 211 mSDsluCounter, 230 mSDsCounter, 0 mSdLazyCounter, 10 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 211 SdHoareTripleChecker+Valid, 704 SdHoareTripleChecker+Invalid, 12 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 10 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2023-12-25 09:40:00,182 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [211 Valid, 704 Invalid, 12 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 10 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2023-12-25 09:40:00,192 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 18706 states. [2023-12-25 09:40:00,321 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 18706 to 18704. [2023-12-25 09:40:00,334 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 18704 states, 18703 states have (on average 1.3413356146072823) internal successors, (25087), 18703 states have internal predecessors, (25087), 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) [2023-12-25 09:40:00,354 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 18704 states to 18704 states and 25087 transitions. [2023-12-25 09:40:00,354 INFO L78 Accepts]: Start accepts. Automaton has 18704 states and 25087 transitions. Word has length 87 [2023-12-25 09:40:00,354 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-25 09:40:00,354 INFO L495 AbstractCegarLoop]: Abstraction has 18704 states and 25087 transitions. [2023-12-25 09:40:00,354 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 29.0) internal successors, (87), 3 states have internal predecessors, (87), 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) [2023-12-25 09:40:00,354 INFO L276 IsEmpty]: Start isEmpty. Operand 18704 states and 25087 transitions. [2023-12-25 09:40:00,356 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 88 [2023-12-25 09:40:00,356 INFO L187 NwaCegarLoop]: Found error trace [2023-12-25 09:40:00,356 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] [2023-12-25 09:40:00,360 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 [2023-12-25 09:40:00,556 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 [2023-12-25 09:40:00,557 INFO L420 AbstractCegarLoop]: === Iteration 37 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-25 09:40:00,557 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-25 09:40:00,557 INFO L85 PathProgramCache]: Analyzing trace with hash 261790106, now seen corresponding path program 1 times [2023-12-25 09:40:00,557 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-12-25 09:40:00,557 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1427923387] [2023-12-25 09:40:00,557 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-25 09:40:00,558 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 [2023-12-25 09:40:00,558 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2023-12-25 09:40:00,558 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) [2023-12-25 09:40:00,559 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 [2023-12-25 09:40:00,691 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-25 09:40:00,693 INFO L262 TraceCheckSpWp]: Trace formula consists of 259 conjuncts, 2 conjunts are in the unsatisfiable core [2023-12-25 09:40:00,694 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-25 09:40:00,714 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-12-25 09:40:00,714 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-12-25 09:40:00,714 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-12-25 09:40:00,714 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1427923387] [2023-12-25 09:40:00,714 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1427923387] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-25 09:40:00,714 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-25 09:40:00,714 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2023-12-25 09:40:00,714 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1188449671] [2023-12-25 09:40:00,714 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-25 09:40:00,715 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-12-25 09:40:00,715 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-12-25 09:40:00,715 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-12-25 09:40:00,715 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-12-25 09:40:00,715 INFO L87 Difference]: Start difference. First operand 18704 states and 25087 transitions. Second operand has 3 states, 3 states have (on average 29.0) internal successors, (87), 3 states have internal predecessors, (87), 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) [2023-12-25 09:40:00,949 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-25 09:40:00,949 INFO L93 Difference]: Finished difference Result 51412 states and 69473 transitions. [2023-12-25 09:40:00,950 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-12-25 09:40:00,950 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 29.0) internal successors, (87), 3 states have internal predecessors, (87), 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 87 [2023-12-25 09:40:00,950 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-25 09:40:00,980 INFO L225 Difference]: With dead ends: 51412 [2023-12-25 09:40:00,980 INFO L226 Difference]: Without dead ends: 33294 [2023-12-25 09:40:00,984 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 86 GetRequests, 85 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-12-25 09:40:00,985 INFO L413 NwaCegarLoop]: 374 mSDtfsCounter, 188 mSDsluCounter, 200 mSDsCounter, 0 mSdLazyCounter, 30 mSolverCounterSat, 7 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 188 SdHoareTripleChecker+Valid, 574 SdHoareTripleChecker+Invalid, 37 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 7 IncrementalHoareTripleChecker+Valid, 30 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2023-12-25 09:40:00,985 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [188 Valid, 574 Invalid, 37 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [7 Valid, 30 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2023-12-25 09:40:01,001 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 33294 states. [2023-12-25 09:40:01,226 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 33294 to 33292. [2023-12-25 09:40:01,249 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 33292 states, 33291 states have (on average 1.3397915352497671) internal successors, (44603), 33291 states have internal predecessors, (44603), 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) [2023-12-25 09:40:01,286 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 33292 states to 33292 states and 44603 transitions. [2023-12-25 09:40:01,287 INFO L78 Accepts]: Start accepts. Automaton has 33292 states and 44603 transitions. Word has length 87 [2023-12-25 09:40:01,287 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-25 09:40:01,287 INFO L495 AbstractCegarLoop]: Abstraction has 33292 states and 44603 transitions. [2023-12-25 09:40:01,287 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 29.0) internal successors, (87), 3 states have internal predecessors, (87), 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) [2023-12-25 09:40:01,287 INFO L276 IsEmpty]: Start isEmpty. Operand 33292 states and 44603 transitions. [2023-12-25 09:40:01,289 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 89 [2023-12-25 09:40:01,289 INFO L187 NwaCegarLoop]: Found error trace [2023-12-25 09:40:01,289 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] [2023-12-25 09:40:01,291 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 (38)] Ended with exit code 0 [2023-12-25 09:40:01,489 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 [2023-12-25 09:40:01,490 INFO L420 AbstractCegarLoop]: === Iteration 38 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-25 09:40:01,490 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-25 09:40:01,490 INFO L85 PathProgramCache]: Analyzing trace with hash 880064400, now seen corresponding path program 1 times [2023-12-25 09:40:01,490 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-12-25 09:40:01,490 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1021592218] [2023-12-25 09:40:01,490 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-25 09:40:01,490 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 [2023-12-25 09:40:01,491 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2023-12-25 09:40:01,491 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) [2023-12-25 09:40:01,492 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 [2023-12-25 09:40:01,631 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-25 09:40:01,634 INFO L262 TraceCheckSpWp]: Trace formula consists of 258 conjuncts, 5 conjunts are in the unsatisfiable core [2023-12-25 09:40:01,635 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-25 09:40:02,200 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-12-25 09:40:02,200 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-12-25 09:40:02,200 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-12-25 09:40:02,200 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1021592218] [2023-12-25 09:40:02,200 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1021592218] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-25 09:40:02,200 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-25 09:40:02,200 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2023-12-25 09:40:02,200 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1613815988] [2023-12-25 09:40:02,201 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-25 09:40:02,201 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2023-12-25 09:40:02,201 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-12-25 09:40:02,201 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2023-12-25 09:40:02,201 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=15, Unknown=0, NotChecked=0, Total=30 [2023-12-25 09:40:02,201 INFO L87 Difference]: Start difference. First operand 33292 states and 44603 transitions. Second operand has 6 states, 6 states have (on average 14.666666666666666) internal successors, (88), 6 states have internal predecessors, (88), 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) [2023-12-25 09:40:02,497 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-25 09:40:02,497 INFO L93 Difference]: Finished difference Result 121018 states and 162552 transitions. [2023-12-25 09:40:02,498 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2023-12-25 09:40:02,498 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 14.666666666666666) internal successors, (88), 6 states have internal predecessors, (88), 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 88 [2023-12-25 09:40:02,498 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-25 09:40:02,591 INFO L225 Difference]: With dead ends: 121018 [2023-12-25 09:40:02,591 INFO L226 Difference]: Without dead ends: 88312 [2023-12-25 09:40:02,627 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 87 GetRequests, 83 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=15, Invalid=15, Unknown=0, NotChecked=0, Total=30 [2023-12-25 09:40:02,628 INFO L413 NwaCegarLoop]: 329 mSDtfsCounter, 1503 mSDsluCounter, 407 mSDsCounter, 0 mSdLazyCounter, 50 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1503 SdHoareTripleChecker+Valid, 736 SdHoareTripleChecker+Invalid, 51 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 50 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2023-12-25 09:40:02,628 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1503 Valid, 736 Invalid, 51 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 50 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2023-12-25 09:40:02,678 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 88312 states. [2023-12-25 09:40:03,430 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 88312 to 65996. [2023-12-25 09:40:03,478 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 65996 states, 65995 states have (on average 1.316266383816956) internal successors, (86867), 65995 states have internal predecessors, (86867), 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) [2023-12-25 09:40:03,564 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 65996 states to 65996 states and 86867 transitions. [2023-12-25 09:40:03,564 INFO L78 Accepts]: Start accepts. Automaton has 65996 states and 86867 transitions. Word has length 88 [2023-12-25 09:40:03,564 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-25 09:40:03,564 INFO L495 AbstractCegarLoop]: Abstraction has 65996 states and 86867 transitions. [2023-12-25 09:40:03,564 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 14.666666666666666) internal successors, (88), 6 states have internal predecessors, (88), 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) [2023-12-25 09:40:03,565 INFO L276 IsEmpty]: Start isEmpty. Operand 65996 states and 86867 transitions. [2023-12-25 09:40:03,567 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 90 [2023-12-25 09:40:03,567 INFO L187 NwaCegarLoop]: Found error trace [2023-12-25 09:40:03,567 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] [2023-12-25 09:40:03,569 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 (39)] Ended with exit code 0 [2023-12-25 09:40:03,767 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 [2023-12-25 09:40:03,767 INFO L420 AbstractCegarLoop]: === Iteration 39 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-25 09:40:03,768 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-25 09:40:03,768 INFO L85 PathProgramCache]: Analyzing trace with hash 823183783, now seen corresponding path program 1 times [2023-12-25 09:40:03,768 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-12-25 09:40:03,768 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1379611734] [2023-12-25 09:40:03,768 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-25 09:40:03,768 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 [2023-12-25 09:40:03,768 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2023-12-25 09:40:03,769 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) [2023-12-25 09:40:03,770 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 [2023-12-25 09:40:03,912 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-25 09:40:03,915 INFO L262 TraceCheckSpWp]: Trace formula consists of 259 conjuncts, 6 conjunts are in the unsatisfiable core [2023-12-25 09:40:03,916 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-25 09:40:03,936 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-12-25 09:40:03,936 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-12-25 09:40:03,936 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-12-25 09:40:03,936 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1379611734] [2023-12-25 09:40:03,936 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1379611734] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-25 09:40:03,936 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-25 09:40:03,936 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2023-12-25 09:40:03,936 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2066519812] [2023-12-25 09:40:03,936 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-25 09:40:03,937 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2023-12-25 09:40:03,937 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-12-25 09:40:03,937 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2023-12-25 09:40:03,937 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2023-12-25 09:40:03,937 INFO L87 Difference]: Start difference. First operand 65996 states and 86867 transitions. Second operand has 5 states, 5 states have (on average 17.8) internal successors, (89), 5 states have internal predecessors, (89), 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) [2023-12-25 09:40:04,488 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-25 09:40:04,488 INFO L93 Difference]: Finished difference Result 140546 states and 182620 transitions. [2023-12-25 09:40:04,489 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2023-12-25 09:40:04,489 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 17.8) internal successors, (89), 5 states have internal predecessors, (89), 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 89 [2023-12-25 09:40:04,489 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-25 09:40:04,638 INFO L225 Difference]: With dead ends: 140546 [2023-12-25 09:40:04,639 INFO L226 Difference]: Without dead ends: 140544 [2023-12-25 09:40:04,778 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 93 GetRequests, 87 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=22, Invalid=34, Unknown=0, NotChecked=0, Total=56 [2023-12-25 09:40:04,778 INFO L413 NwaCegarLoop]: 421 mSDtfsCounter, 389 mSDsluCounter, 948 mSDsCounter, 0 mSdLazyCounter, 26 mSolverCounterSat, 20 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 389 SdHoareTripleChecker+Valid, 1369 SdHoareTripleChecker+Invalid, 46 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 20 IncrementalHoareTripleChecker+Valid, 26 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2023-12-25 09:40:04,790 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [389 Valid, 1369 Invalid, 46 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [20 Valid, 26 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2023-12-25 09:40:04,858 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 140544 states. [2023-12-25 09:40:05,705 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 140544 to 71084. [2023-12-25 09:40:05,760 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 71084 states, 71083 states have (on average 1.293628575046073) internal successors, (91955), 71083 states have internal predecessors, (91955), 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) [2023-12-25 09:40:05,870 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 71084 states to 71084 states and 91955 transitions. [2023-12-25 09:40:05,870 INFO L78 Accepts]: Start accepts. Automaton has 71084 states and 91955 transitions. Word has length 89 [2023-12-25 09:40:05,871 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-25 09:40:05,871 INFO L495 AbstractCegarLoop]: Abstraction has 71084 states and 91955 transitions. [2023-12-25 09:40:05,871 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 17.8) internal successors, (89), 5 states have internal predecessors, (89), 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) [2023-12-25 09:40:05,871 INFO L276 IsEmpty]: Start isEmpty. Operand 71084 states and 91955 transitions. [2023-12-25 09:40:05,873 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 91 [2023-12-25 09:40:05,873 INFO L187 NwaCegarLoop]: Found error trace [2023-12-25 09:40:05,873 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] [2023-12-25 09:40:05,879 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (40)] Forceful destruction successful, exit code 0 [2023-12-25 09:40:06,075 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 [2023-12-25 09:40:06,075 INFO L420 AbstractCegarLoop]: === Iteration 40 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-25 09:40:06,076 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-25 09:40:06,076 INFO L85 PathProgramCache]: Analyzing trace with hash 165339293, now seen corresponding path program 1 times [2023-12-25 09:40:06,076 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-12-25 09:40:06,076 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1826906289] [2023-12-25 09:40:06,076 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-25 09:40:06,077 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 [2023-12-25 09:40:06,077 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2023-12-25 09:40:06,078 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) [2023-12-25 09:40:06,079 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 [2023-12-25 09:40:06,385 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-25 09:40:06,388 INFO L262 TraceCheckSpWp]: Trace formula consists of 260 conjuncts, 3 conjunts are in the unsatisfiable core [2023-12-25 09:40:06,390 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-25 09:40:06,474 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-12-25 09:40:06,475 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-12-25 09:40:06,475 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-12-25 09:40:06,475 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1826906289] [2023-12-25 09:40:06,475 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1826906289] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-25 09:40:06,475 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-25 09:40:06,475 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2023-12-25 09:40:06,475 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2145320110] [2023-12-25 09:40:06,475 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-25 09:40:06,475 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2023-12-25 09:40:06,475 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-12-25 09:40:06,476 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2023-12-25 09:40:06,476 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2023-12-25 09:40:06,476 INFO L87 Difference]: Start difference. First operand 71084 states and 91955 transitions. Second operand has 4 states, 4 states have (on average 22.5) internal successors, (90), 4 states have internal predecessors, (90), 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) [2023-12-25 09:40:06,897 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-25 09:40:06,897 INFO L93 Difference]: Finished difference Result 172736 states and 222485 transitions. [2023-12-25 09:40:06,898 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2023-12-25 09:40:06,898 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 22.5) internal successors, (90), 4 states have internal predecessors, (90), 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 90 [2023-12-25 09:40:06,898 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-25 09:40:07,042 INFO L225 Difference]: With dead ends: 172736 [2023-12-25 09:40:07,042 INFO L226 Difference]: Without dead ends: 102238 [2023-12-25 09:40:07,080 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 89 GetRequests, 87 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2023-12-25 09:40:07,081 INFO L413 NwaCegarLoop]: 336 mSDtfsCounter, 253 mSDsluCounter, 437 mSDsCounter, 0 mSdLazyCounter, 55 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 253 SdHoareTripleChecker+Valid, 773 SdHoareTripleChecker+Invalid, 56 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 55 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2023-12-25 09:40:07,081 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [253 Valid, 773 Invalid, 56 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 55 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2023-12-25 09:40:07,145 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 102238 states. [2023-12-25 09:40:08,103 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 102238 to 101340. [2023-12-25 09:40:08,174 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 101340 states, 101339 states have (on average 1.2678534424061811) internal successors, (128483), 101339 states have internal predecessors, (128483), 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) [2023-12-25 09:40:08,341 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 101340 states to 101340 states and 128483 transitions. [2023-12-25 09:40:08,342 INFO L78 Accepts]: Start accepts. Automaton has 101340 states and 128483 transitions. Word has length 90 [2023-12-25 09:40:08,342 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-25 09:40:08,342 INFO L495 AbstractCegarLoop]: Abstraction has 101340 states and 128483 transitions. [2023-12-25 09:40:08,342 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 22.5) internal successors, (90), 4 states have internal predecessors, (90), 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) [2023-12-25 09:40:08,342 INFO L276 IsEmpty]: Start isEmpty. Operand 101340 states and 128483 transitions. [2023-12-25 09:40:08,345 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 93 [2023-12-25 09:40:08,345 INFO L187 NwaCegarLoop]: Found error trace [2023-12-25 09:40:08,346 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] [2023-12-25 09:40:08,350 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 [2023-12-25 09:40:08,546 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 [2023-12-25 09:40:08,547 INFO L420 AbstractCegarLoop]: === Iteration 41 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-25 09:40:08,547 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-25 09:40:08,547 INFO L85 PathProgramCache]: Analyzing trace with hash 423318189, now seen corresponding path program 1 times [2023-12-25 09:40:08,548 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-12-25 09:40:08,548 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [45109813] [2023-12-25 09:40:08,548 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-25 09:40:08,548 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 [2023-12-25 09:40:08,548 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2023-12-25 09:40:08,549 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) [2023-12-25 09:40:08,552 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (42)] Waiting until timeout for monitored process [2023-12-25 09:40:08,696 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-25 09:40:08,698 INFO L262 TraceCheckSpWp]: Trace formula consists of 262 conjuncts, 2 conjunts are in the unsatisfiable core [2023-12-25 09:40:08,700 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-25 09:40:08,716 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-12-25 09:40:08,716 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-12-25 09:40:08,717 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-12-25 09:40:08,717 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [45109813] [2023-12-25 09:40:08,717 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [45109813] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-25 09:40:08,717 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-25 09:40:08,717 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2023-12-25 09:40:08,717 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1875166318] [2023-12-25 09:40:08,717 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-25 09:40:08,717 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-12-25 09:40:08,717 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-12-25 09:40:08,718 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-12-25 09:40:08,718 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-12-25 09:40:08,718 INFO L87 Difference]: Start difference. First operand 101340 states and 128483 transitions. Second operand has 3 states, 3 states have (on average 30.666666666666668) internal successors, (92), 3 states have internal predecessors, (92), 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) [2023-12-25 09:40:09,511 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-25 09:40:09,512 INFO L93 Difference]: Finished difference Result 225604 states and 288933 transitions. [2023-12-25 09:40:09,512 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-12-25 09:40:09,512 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 30.666666666666668) internal successors, (92), 3 states have internal predecessors, (92), 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 92 [2023-12-25 09:40:09,512 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-25 09:40:09,686 INFO L225 Difference]: With dead ends: 225604 [2023-12-25 09:40:09,687 INFO L226 Difference]: Without dead ends: 155078 [2023-12-25 09:40:09,720 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 91 GetRequests, 90 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-12-25 09:40:09,722 INFO L413 NwaCegarLoop]: 433 mSDtfsCounter, 154 mSDsluCounter, 259 mSDsCounter, 0 mSdLazyCounter, 9 mSolverCounterSat, 6 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 154 SdHoareTripleChecker+Valid, 692 SdHoareTripleChecker+Invalid, 15 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 6 IncrementalHoareTripleChecker+Valid, 9 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2023-12-25 09:40:09,723 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [154 Valid, 692 Invalid, 15 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [6 Valid, 9 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2023-12-25 09:40:09,811 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 155078 states. [2023-12-25 09:40:11,100 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 155078 to 155076. [2023-12-25 09:40:11,205 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 155076 states, 155075 states have (on average 1.2630469127841366) internal successors, (195867), 155075 states have internal predecessors, (195867), 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) [2023-12-25 09:40:11,707 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 155076 states to 155076 states and 195867 transitions. [2023-12-25 09:40:11,707 INFO L78 Accepts]: Start accepts. Automaton has 155076 states and 195867 transitions. Word has length 92 [2023-12-25 09:40:11,707 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-25 09:40:11,707 INFO L495 AbstractCegarLoop]: Abstraction has 155076 states and 195867 transitions. [2023-12-25 09:40:11,707 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 30.666666666666668) internal successors, (92), 3 states have internal predecessors, (92), 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) [2023-12-25 09:40:11,707 INFO L276 IsEmpty]: Start isEmpty. Operand 155076 states and 195867 transitions. [2023-12-25 09:40:11,709 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 93 [2023-12-25 09:40:11,709 INFO L187 NwaCegarLoop]: Found error trace [2023-12-25 09:40:11,709 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] [2023-12-25 09:40:11,713 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 [2023-12-25 09:40:11,909 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 [2023-12-25 09:40:11,910 INFO L420 AbstractCegarLoop]: === Iteration 42 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-25 09:40:11,910 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-25 09:40:11,910 INFO L85 PathProgramCache]: Analyzing trace with hash 1161127499, now seen corresponding path program 1 times [2023-12-25 09:40:11,910 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-12-25 09:40:11,910 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1265734802] [2023-12-25 09:40:11,910 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-25 09:40:11,910 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 [2023-12-25 09:40:11,911 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2023-12-25 09:40:11,911 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) [2023-12-25 09:40:11,912 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 [2023-12-25 09:40:12,043 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-25 09:40:12,046 INFO L262 TraceCheckSpWp]: Trace formula consists of 262 conjuncts, 5 conjunts are in the unsatisfiable core [2023-12-25 09:40:12,048 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-25 09:40:12,186 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-12-25 09:40:12,187 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-12-25 09:40:12,187 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-12-25 09:40:12,187 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1265734802] [2023-12-25 09:40:12,187 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1265734802] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-25 09:40:12,187 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-25 09:40:12,187 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2023-12-25 09:40:12,187 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [971000916] [2023-12-25 09:40:12,187 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-25 09:40:12,187 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2023-12-25 09:40:12,187 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-12-25 09:40:12,188 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2023-12-25 09:40:12,188 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=18, Unknown=0, NotChecked=0, Total=30 [2023-12-25 09:40:12,188 INFO L87 Difference]: Start difference. First operand 155076 states and 195867 transitions. Second operand has 6 states, 6 states have (on average 15.333333333333334) internal successors, (92), 5 states have internal predecessors, (92), 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) [2023-12-25 09:40:13,274 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-25 09:40:13,274 INFO L93 Difference]: Finished difference Result 256286 states and 320837 transitions. [2023-12-25 09:40:13,275 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2023-12-25 09:40:13,275 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 15.333333333333334) internal successors, (92), 5 states have internal predecessors, (92), 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 92 [2023-12-25 09:40:13,275 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-25 09:40:13,509 INFO L225 Difference]: With dead ends: 256286 [2023-12-25 09:40:13,509 INFO L226 Difference]: Without dead ends: 181867 [2023-12-25 09:40:13,561 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 95 GetRequests, 87 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 4 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=36, Invalid=54, Unknown=0, NotChecked=0, Total=90 [2023-12-25 09:40:13,562 INFO L413 NwaCegarLoop]: 246 mSDtfsCounter, 1046 mSDsluCounter, 520 mSDsCounter, 0 mSdLazyCounter, 383 mSolverCounterSat, 43 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1046 SdHoareTripleChecker+Valid, 766 SdHoareTripleChecker+Invalid, 426 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 43 IncrementalHoareTripleChecker+Valid, 383 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2023-12-25 09:40:13,562 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1046 Valid, 766 Invalid, 426 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [43 Valid, 383 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2023-12-25 09:40:13,692 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 181867 states. [2023-12-25 09:40:15,127 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 181867 to 155021. [2023-12-25 09:40:15,226 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 155021 states, 155020 states have (on average 1.2630434782608695) internal successors, (195797), 155020 states have internal predecessors, (195797), 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) [2023-12-25 09:40:15,684 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 155021 states to 155021 states and 195797 transitions. [2023-12-25 09:40:15,684 INFO L78 Accepts]: Start accepts. Automaton has 155021 states and 195797 transitions. Word has length 92 [2023-12-25 09:40:15,685 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-25 09:40:15,685 INFO L495 AbstractCegarLoop]: Abstraction has 155021 states and 195797 transitions. [2023-12-25 09:40:15,685 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 15.333333333333334) internal successors, (92), 5 states have internal predecessors, (92), 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) [2023-12-25 09:40:15,685 INFO L276 IsEmpty]: Start isEmpty. Operand 155021 states and 195797 transitions. [2023-12-25 09:40:15,686 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 95 [2023-12-25 09:40:15,686 INFO L187 NwaCegarLoop]: Found error trace [2023-12-25 09:40:15,686 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] [2023-12-25 09:40:15,690 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 (43)] Forceful destruction successful, exit code 0 [2023-12-25 09:40:15,887 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 [2023-12-25 09:40:15,887 INFO L420 AbstractCegarLoop]: === Iteration 43 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-25 09:40:15,887 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-25 09:40:15,887 INFO L85 PathProgramCache]: Analyzing trace with hash 1436306721, now seen corresponding path program 1 times [2023-12-25 09:40:15,888 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-12-25 09:40:15,888 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [489514618] [2023-12-25 09:40:15,888 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-25 09:40:15,888 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 [2023-12-25 09:40:15,888 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2023-12-25 09:40:15,889 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) [2023-12-25 09:40:15,889 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 [2023-12-25 09:40:16,029 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-25 09:40:16,032 INFO L262 TraceCheckSpWp]: Trace formula consists of 266 conjuncts, 8 conjunts are in the unsatisfiable core [2023-12-25 09:40:16,034 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-25 09:40:16,311 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-12-25 09:40:16,311 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-12-25 09:40:16,312 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-12-25 09:40:16,312 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [489514618] [2023-12-25 09:40:16,312 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [489514618] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-25 09:40:16,312 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-25 09:40:16,312 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2023-12-25 09:40:16,312 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1395073761] [2023-12-25 09:40:16,312 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-25 09:40:16,312 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2023-12-25 09:40:16,312 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-12-25 09:40:16,313 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2023-12-25 09:40:16,313 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=21, Invalid=51, Unknown=0, NotChecked=0, Total=72 [2023-12-25 09:40:16,313 INFO L87 Difference]: Start difference. First operand 155021 states and 195797 transitions. Second operand has 9 states, 9 states have (on average 10.444444444444445) internal successors, (94), 8 states have internal predecessors, (94), 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) [2023-12-25 09:40:17,818 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-25 09:40:17,819 INFO L93 Difference]: Finished difference Result 159291 states and 200946 transitions. [2023-12-25 09:40:17,819 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2023-12-25 09:40:17,819 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 9 states have (on average 10.444444444444445) internal successors, (94), 8 states have internal predecessors, (94), 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 94 [2023-12-25 09:40:17,819 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-25 09:40:17,992 INFO L225 Difference]: With dead ends: 159291 [2023-12-25 09:40:17,992 INFO L226 Difference]: Without dead ends: 155881 [2023-12-25 09:40:18,031 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 101 GetRequests, 86 SyntacticMatches, 0 SemanticMatches, 15 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 18 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=82, Invalid=190, Unknown=0, NotChecked=0, Total=272 [2023-12-25 09:40:18,031 INFO L413 NwaCegarLoop]: 269 mSDtfsCounter, 1111 mSDsluCounter, 1023 mSDsCounter, 0 mSdLazyCounter, 855 mSolverCounterSat, 6 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.8s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1111 SdHoareTripleChecker+Valid, 1292 SdHoareTripleChecker+Invalid, 861 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 6 IncrementalHoareTripleChecker+Valid, 855 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.9s IncrementalHoareTripleChecker+Time [2023-12-25 09:40:18,032 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1111 Valid, 1292 Invalid, 861 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [6 Valid, 855 Invalid, 0 Unknown, 0 Unchecked, 0.9s Time] [2023-12-25 09:40:18,130 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 155881 states. [2023-12-25 09:40:19,650 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 155881 to 155021. [2023-12-25 09:40:19,739 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 155021 states, 155020 states have (on average 1.263037027480325) internal successors, (195796), 155020 states have internal predecessors, (195796), 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) [2023-12-25 09:40:19,954 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 155021 states to 155021 states and 195796 transitions. [2023-12-25 09:40:19,955 INFO L78 Accepts]: Start accepts. Automaton has 155021 states and 195796 transitions. Word has length 94 [2023-12-25 09:40:19,955 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-25 09:40:19,955 INFO L495 AbstractCegarLoop]: Abstraction has 155021 states and 195796 transitions. [2023-12-25 09:40:19,955 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 9 states have (on average 10.444444444444445) internal successors, (94), 8 states have internal predecessors, (94), 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) [2023-12-25 09:40:19,955 INFO L276 IsEmpty]: Start isEmpty. Operand 155021 states and 195796 transitions. [2023-12-25 09:40:19,957 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 96 [2023-12-25 09:40:19,957 INFO L187 NwaCegarLoop]: Found error trace [2023-12-25 09:40:19,957 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] [2023-12-25 09:40:19,962 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 [2023-12-25 09:40:20,157 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 [2023-12-25 09:40:20,157 INFO L420 AbstractCegarLoop]: === Iteration 44 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-25 09:40:20,158 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-25 09:40:20,158 INFO L85 PathProgramCache]: Analyzing trace with hash -243820902, now seen corresponding path program 1 times [2023-12-25 09:40:20,158 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-12-25 09:40:20,158 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1339199769] [2023-12-25 09:40:20,158 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-25 09:40:20,158 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 [2023-12-25 09:40:20,158 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2023-12-25 09:40:20,159 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) [2023-12-25 09:40:20,170 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (45)] Waiting until timeout for monitored process [2023-12-25 09:40:20,291 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-25 09:40:20,294 INFO L262 TraceCheckSpWp]: Trace formula consists of 268 conjuncts, 5 conjunts are in the unsatisfiable core [2023-12-25 09:40:20,296 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-25 09:40:20,949 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-12-25 09:40:20,950 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-12-25 09:40:20,950 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-12-25 09:40:20,950 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1339199769] [2023-12-25 09:40:20,950 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1339199769] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-25 09:40:20,950 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-25 09:40:20,950 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2023-12-25 09:40:20,950 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [482337312] [2023-12-25 09:40:20,950 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-25 09:40:20,951 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2023-12-25 09:40:20,951 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-12-25 09:40:20,951 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2023-12-25 09:40:20,951 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=15, Unknown=0, NotChecked=0, Total=30 [2023-12-25 09:40:20,951 INFO L87 Difference]: Start difference. First operand 155021 states and 195796 transitions. Second operand has 6 states, 6 states have (on average 15.833333333333334) internal successors, (95), 6 states have internal predecessors, (95), 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) [2023-12-25 09:40:21,648 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-25 09:40:21,648 INFO L93 Difference]: Finished difference Result 218477 states and 277808 transitions. [2023-12-25 09:40:21,649 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2023-12-25 09:40:21,649 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 15.833333333333334) internal successors, (95), 6 states have internal predecessors, (95), 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 95 [2023-12-25 09:40:21,649 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-25 09:40:21,904 INFO L225 Difference]: With dead ends: 218477 [2023-12-25 09:40:21,904 INFO L226 Difference]: Without dead ends: 199611 [2023-12-25 09:40:21,923 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 94 GetRequests, 90 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=15, Invalid=15, Unknown=0, NotChecked=0, Total=30 [2023-12-25 09:40:21,923 INFO L413 NwaCegarLoop]: 430 mSDtfsCounter, 825 mSDsluCounter, 710 mSDsCounter, 0 mSdLazyCounter, 94 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 825 SdHoareTripleChecker+Valid, 1140 SdHoareTripleChecker+Invalid, 96 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 94 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2023-12-25 09:40:21,923 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [825 Valid, 1140 Invalid, 96 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 94 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2023-12-25 09:40:22,023 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 199611 states. [2023-12-25 09:40:23,442 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 199611 to 163229. [2023-12-25 09:40:23,552 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 163229 states, 163228 states have (on average 1.2600044110079154) internal successors, (205668), 163228 states have internal predecessors, (205668), 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) [2023-12-25 09:40:24,052 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 163229 states to 163229 states and 205668 transitions. [2023-12-25 09:40:24,053 INFO L78 Accepts]: Start accepts. Automaton has 163229 states and 205668 transitions. Word has length 95 [2023-12-25 09:40:24,053 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-25 09:40:24,053 INFO L495 AbstractCegarLoop]: Abstraction has 163229 states and 205668 transitions. [2023-12-25 09:40:24,053 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 15.833333333333334) internal successors, (95), 6 states have internal predecessors, (95), 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) [2023-12-25 09:40:24,053 INFO L276 IsEmpty]: Start isEmpty. Operand 163229 states and 205668 transitions. [2023-12-25 09:40:24,055 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 99 [2023-12-25 09:40:24,055 INFO L187 NwaCegarLoop]: Found error trace [2023-12-25 09:40:24,055 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] [2023-12-25 09:40:24,057 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 (45)] Ended with exit code 0 [2023-12-25 09:40:24,255 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 45 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2023-12-25 09:40:24,255 INFO L420 AbstractCegarLoop]: === Iteration 45 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-25 09:40:24,256 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-25 09:40:24,256 INFO L85 PathProgramCache]: Analyzing trace with hash 1804659486, now seen corresponding path program 1 times [2023-12-25 09:40:24,256 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-12-25 09:40:24,256 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1178805467] [2023-12-25 09:40:24,256 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-25 09:40:24,256 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 [2023-12-25 09:40:24,256 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2023-12-25 09:40:24,257 INFO L229 MonitoredProcess]: Starting monitored process 46 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) [2023-12-25 09:40:24,258 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 (46)] Waiting until timeout for monitored process [2023-12-25 09:40:24,392 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-25 09:40:24,394 INFO L262 TraceCheckSpWp]: Trace formula consists of 270 conjuncts, 5 conjunts are in the unsatisfiable core [2023-12-25 09:40:24,396 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-25 09:40:24,815 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-12-25 09:40:24,815 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-12-25 09:40:24,988 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-12-25 09:40:24,988 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1178805467] [2023-12-25 09:40:24,988 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1178805467] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-25 09:40:24,988 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-25 09:40:24,988 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2023-12-25 09:40:24,988 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2055036830] [2023-12-25 09:40:24,988 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-25 09:40:24,989 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2023-12-25 09:40:24,989 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-12-25 09:40:24,989 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2023-12-25 09:40:24,989 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=15, Unknown=0, NotChecked=0, Total=30 [2023-12-25 09:40:24,989 INFO L87 Difference]: Start difference. First operand 163229 states and 205668 transitions. Second operand has 6 states, 6 states have (on average 16.333333333333332) internal successors, (98), 6 states have internal predecessors, (98), 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) [2023-12-25 09:40:25,622 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-25 09:40:25,622 INFO L93 Difference]: Finished difference Result 243109 states and 309568 transitions. [2023-12-25 09:40:25,623 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2023-12-25 09:40:25,623 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 16.333333333333332) internal successors, (98), 6 states have internal predecessors, (98), 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 98 [2023-12-25 09:40:25,623 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-25 09:40:26,104 INFO L225 Difference]: With dead ends: 243109 [2023-12-25 09:40:26,104 INFO L226 Difference]: Without dead ends: 190379 [2023-12-25 09:40:26,152 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 97 GetRequests, 93 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=15, Invalid=15, Unknown=0, NotChecked=0, Total=30 [2023-12-25 09:40:26,154 INFO L413 NwaCegarLoop]: 435 mSDtfsCounter, 829 mSDsluCounter, 671 mSDsCounter, 0 mSdLazyCounter, 75 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 829 SdHoareTripleChecker+Valid, 1106 SdHoareTripleChecker+Invalid, 77 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 75 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2023-12-25 09:40:26,154 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [829 Valid, 1106 Invalid, 77 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 75 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2023-12-25 09:40:26,277 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 190379 states. [2023-12-25 09:40:27,767 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 190379 to 173477. [2023-12-25 09:40:27,883 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 173477 states, 173476 states have (on average 1.2534990430952986) internal successors, (217452), 173476 states have internal predecessors, (217452), 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) [2023-12-25 09:40:28,125 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 173477 states to 173477 states and 217452 transitions. [2023-12-25 09:40:28,125 INFO L78 Accepts]: Start accepts. Automaton has 173477 states and 217452 transitions. Word has length 98 [2023-12-25 09:40:28,126 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-25 09:40:28,126 INFO L495 AbstractCegarLoop]: Abstraction has 173477 states and 217452 transitions. [2023-12-25 09:40:28,126 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 16.333333333333332) internal successors, (98), 6 states have internal predecessors, (98), 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) [2023-12-25 09:40:28,126 INFO L276 IsEmpty]: Start isEmpty. Operand 173477 states and 217452 transitions. [2023-12-25 09:40:28,135 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 115 [2023-12-25 09:40:28,135 INFO L187 NwaCegarLoop]: Found error trace [2023-12-25 09:40:28,135 INFO L195 NwaCegarLoop]: trace histogram [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] [2023-12-25 09:40:28,140 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (46)] Forceful destruction successful, exit code 0 [2023-12-25 09:40:28,338 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 46 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2023-12-25 09:40:28,338 INFO L420 AbstractCegarLoop]: === Iteration 46 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-25 09:40:28,338 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-25 09:40:28,338 INFO L85 PathProgramCache]: Analyzing trace with hash -1655203902, now seen corresponding path program 1 times [2023-12-25 09:40:28,339 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-12-25 09:40:28,339 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1746371293] [2023-12-25 09:40:28,339 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-25 09:40:28,339 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2023-12-25 09:40:28,339 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2023-12-25 09:40:28,340 INFO L229 MonitoredProcess]: Starting monitored process 47 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) [2023-12-25 09:40:28,340 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 (47)] Waiting until timeout for monitored process [2023-12-25 09:40:28,763 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-25 09:40:28,766 INFO L262 TraceCheckSpWp]: Trace formula consists of 301 conjuncts, 2 conjunts are in the unsatisfiable core [2023-12-25 09:40:28,767 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-25 09:40:28,791 INFO L134 CoverageAnalysis]: Checked inductivity of 16 backedges. 16 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-12-25 09:40:28,791 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-12-25 09:40:28,791 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-12-25 09:40:28,791 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1746371293] [2023-12-25 09:40:28,791 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1746371293] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-25 09:40:28,791 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-25 09:40:28,791 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2023-12-25 09:40:28,791 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1642175270] [2023-12-25 09:40:28,791 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-25 09:40:28,792 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-12-25 09:40:28,792 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-12-25 09:40:28,792 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-12-25 09:40:28,792 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-12-25 09:40:28,792 INFO L87 Difference]: Start difference. First operand 173477 states and 217452 transitions. Second operand has 3 states, 3 states have (on average 38.0) internal successors, (114), 3 states have internal predecessors, (114), 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) [2023-12-25 09:40:29,746 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-25 09:40:29,747 INFO L93 Difference]: Finished difference Result 313422 states and 394492 transitions. [2023-12-25 09:40:29,747 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-12-25 09:40:29,747 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 38.0) internal successors, (114), 3 states have internal predecessors, (114), 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 114 [2023-12-25 09:40:29,747 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-25 09:40:29,944 INFO L225 Difference]: With dead ends: 313422 [2023-12-25 09:40:29,945 INFO L226 Difference]: Without dead ends: 140532 [2023-12-25 09:40:30,028 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 113 GetRequests, 112 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-12-25 09:40:30,029 INFO L413 NwaCegarLoop]: 385 mSDtfsCounter, 231 mSDsluCounter, 172 mSDsCounter, 0 mSdLazyCounter, 12 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 231 SdHoareTripleChecker+Valid, 557 SdHoareTripleChecker+Invalid, 14 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 12 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2023-12-25 09:40:30,029 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [231 Valid, 557 Invalid, 14 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 12 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2023-12-25 09:40:30,133 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 140532 states. [2023-12-25 09:40:31,258 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 140532 to 140530. [2023-12-25 09:40:31,361 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 140530 states, 140529 states have (on average 1.2503824833308428) internal successors, (175715), 140529 states have internal predecessors, (175715), 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) [2023-12-25 09:40:31,893 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 140530 states to 140530 states and 175715 transitions. [2023-12-25 09:40:31,893 INFO L78 Accepts]: Start accepts. Automaton has 140530 states and 175715 transitions. Word has length 114 [2023-12-25 09:40:31,894 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-25 09:40:31,894 INFO L495 AbstractCegarLoop]: Abstraction has 140530 states and 175715 transitions. [2023-12-25 09:40:31,894 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 38.0) internal successors, (114), 3 states have internal predecessors, (114), 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) [2023-12-25 09:40:31,894 INFO L276 IsEmpty]: Start isEmpty. Operand 140530 states and 175715 transitions. [2023-12-25 09:40:31,915 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 116 [2023-12-25 09:40:31,916 INFO L187 NwaCegarLoop]: Found error trace [2023-12-25 09:40:31,916 INFO L195 NwaCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-25 09:40:31,936 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 (47)] Ended with exit code 0 [2023-12-25 09:40:32,116 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 47 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2023-12-25 09:40:32,117 INFO L420 AbstractCegarLoop]: === Iteration 47 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-25 09:40:32,117 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-25 09:40:32,117 INFO L85 PathProgramCache]: Analyzing trace with hash -759345890, now seen corresponding path program 1 times [2023-12-25 09:40:32,117 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-12-25 09:40:32,117 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [737840004] [2023-12-25 09:40:32,118 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-25 09:40:32,118 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 [2023-12-25 09:40:32,118 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2023-12-25 09:40:32,119 INFO L229 MonitoredProcess]: Starting monitored process 48 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) [2023-12-25 09:40:32,150 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 (48)] Waiting until timeout for monitored process [2023-12-25 09:40:32,309 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-25 09:40:32,312 INFO L262 TraceCheckSpWp]: Trace formula consists of 303 conjuncts, 8 conjunts are in the unsatisfiable core [2023-12-25 09:40:32,315 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-25 09:40:32,976 INFO L134 CoverageAnalysis]: Checked inductivity of 15 backedges. 9 proven. 6 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-12-25 09:40:32,976 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-12-25 09:40:33,332 INFO L134 CoverageAnalysis]: Checked inductivity of 15 backedges. 9 proven. 6 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-12-25 09:40:33,332 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-12-25 09:40:33,332 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [737840004] [2023-12-25 09:40:33,332 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [737840004] provided 0 perfect and 2 imperfect interpolant sequences [2023-12-25 09:40:33,332 INFO L185 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2023-12-25 09:40:33,332 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [8, 8] total 15 [2023-12-25 09:40:33,332 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [708293011] [2023-12-25 09:40:33,332 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2023-12-25 09:40:33,333 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 16 states [2023-12-25 09:40:33,333 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-12-25 09:40:33,333 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 16 interpolants. [2023-12-25 09:40:33,333 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=48, Invalid=192, Unknown=0, NotChecked=0, Total=240 [2023-12-25 09:40:33,334 INFO L87 Difference]: Start difference. First operand 140530 states and 175715 transitions. Second operand has 16 states, 16 states have (on average 13.5) internal successors, (216), 15 states have internal predecessors, (216), 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) [2023-12-25 09:40:36,483 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-25 09:40:36,483 INFO L93 Difference]: Finished difference Result 393315 states and 491171 transitions. [2023-12-25 09:40:36,484 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 27 states. [2023-12-25 09:40:36,484 INFO L78 Accepts]: Start accepts. Automaton has has 16 states, 16 states have (on average 13.5) internal successors, (216), 15 states have internal predecessors, (216), 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 115 [2023-12-25 09:40:36,484 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-25 09:40:37,096 INFO L225 Difference]: With dead ends: 393315 [2023-12-25 09:40:37,096 INFO L226 Difference]: Without dead ends: 254433 [2023-12-25 09:40:37,172 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 252 GetRequests, 214 SyntacticMatches, 0 SemanticMatches, 38 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 277 ImplicationChecksByTransitivity, 0.9s TimeCoverageRelationStatistics Valid=460, Invalid=1100, Unknown=0, NotChecked=0, Total=1560 [2023-12-25 09:40:37,173 INFO L413 NwaCegarLoop]: 434 mSDtfsCounter, 2629 mSDsluCounter, 2225 mSDsCounter, 0 mSdLazyCounter, 1703 mSolverCounterSat, 28 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2629 SdHoareTripleChecker+Valid, 2659 SdHoareTripleChecker+Invalid, 1731 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 28 IncrementalHoareTripleChecker+Valid, 1703 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.4s IncrementalHoareTripleChecker+Time [2023-12-25 09:40:37,173 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [2629 Valid, 2659 Invalid, 1731 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [28 Valid, 1703 Invalid, 0 Unknown, 0 Unchecked, 1.4s Time] [2023-12-25 09:40:37,360 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 254433 states. [2023-12-25 09:40:39,134 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 254433 to 180335. [2023-12-25 09:40:39,266 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 180335 states, 180334 states have (on average 1.2463983497288365) internal successors, (224768), 180334 states have internal predecessors, (224768), 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) [2023-12-25 09:40:39,816 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 180335 states to 180335 states and 224768 transitions. [2023-12-25 09:40:39,816 INFO L78 Accepts]: Start accepts. Automaton has 180335 states and 224768 transitions. Word has length 115 [2023-12-25 09:40:39,816 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-25 09:40:39,816 INFO L495 AbstractCegarLoop]: Abstraction has 180335 states and 224768 transitions. [2023-12-25 09:40:39,816 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 16 states, 16 states have (on average 13.5) internal successors, (216), 15 states have internal predecessors, (216), 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) [2023-12-25 09:40:39,816 INFO L276 IsEmpty]: Start isEmpty. Operand 180335 states and 224768 transitions. [2023-12-25 09:40:39,825 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 116 [2023-12-25 09:40:39,826 INFO L187 NwaCegarLoop]: Found error trace [2023-12-25 09:40:39,826 INFO L195 NwaCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-25 09:40:39,831 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 (48)] Forceful destruction successful, exit code 0 [2023-12-25 09:40:40,031 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 48 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2023-12-25 09:40:40,032 INFO L420 AbstractCegarLoop]: === Iteration 48 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-25 09:40:40,032 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-25 09:40:40,032 INFO L85 PathProgramCache]: Analyzing trace with hash -72132819, now seen corresponding path program 1 times [2023-12-25 09:40:40,032 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-12-25 09:40:40,032 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1443312632] [2023-12-25 09:40:40,032 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-25 09:40:40,032 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 [2023-12-25 09:40:40,033 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2023-12-25 09:40:40,033 INFO L229 MonitoredProcess]: Starting monitored process 49 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) [2023-12-25 09:40:40,034 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 (49)] Waiting until timeout for monitored process [2023-12-25 09:40:40,178 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-25 09:40:40,181 INFO L262 TraceCheckSpWp]: Trace formula consists of 303 conjuncts, 8 conjunts are in the unsatisfiable core [2023-12-25 09:40:40,182 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-25 09:40:40,914 INFO L134 CoverageAnalysis]: Checked inductivity of 15 backedges. 7 proven. 8 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-12-25 09:40:40,914 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-12-25 09:40:41,128 INFO L134 CoverageAnalysis]: Checked inductivity of 15 backedges. 7 proven. 8 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-12-25 09:40:41,128 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-12-25 09:40:41,129 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1443312632] [2023-12-25 09:40:41,129 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1443312632] provided 0 perfect and 2 imperfect interpolant sequences [2023-12-25 09:40:41,129 INFO L185 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2023-12-25 09:40:41,129 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [8, 8] total 15 [2023-12-25 09:40:41,129 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1936712350] [2023-12-25 09:40:41,129 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2023-12-25 09:40:41,129 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 16 states [2023-12-25 09:40:41,129 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-12-25 09:40:41,129 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 16 interpolants. [2023-12-25 09:40:41,130 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=48, Invalid=192, Unknown=0, NotChecked=0, Total=240 [2023-12-25 09:40:41,130 INFO L87 Difference]: Start difference. First operand 180335 states and 224768 transitions. Second operand has 16 states, 16 states have (on average 13.75) internal successors, (220), 15 states have internal predecessors, (220), 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) [2023-12-25 09:40:44,340 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-25 09:40:44,340 INFO L93 Difference]: Finished difference Result 451931 states and 562317 transitions. [2023-12-25 09:40:44,341 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 27 states. [2023-12-25 09:40:44,341 INFO L78 Accepts]: Start accepts. Automaton has has 16 states, 16 states have (on average 13.75) internal successors, (220), 15 states have internal predecessors, (220), 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 115 [2023-12-25 09:40:44,341 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-25 09:40:44,704 INFO L225 Difference]: With dead ends: 451931 [2023-12-25 09:40:44,704 INFO L226 Difference]: Without dead ends: 280109 [2023-12-25 09:40:44,806 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 252 GetRequests, 214 SyntacticMatches, 0 SemanticMatches, 38 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 278 ImplicationChecksByTransitivity, 0.8s TimeCoverageRelationStatistics Valid=460, Invalid=1100, Unknown=0, NotChecked=0, Total=1560 [2023-12-25 09:40:44,806 INFO L413 NwaCegarLoop]: 427 mSDtfsCounter, 2546 mSDsluCounter, 2274 mSDsCounter, 0 mSdLazyCounter, 1733 mSolverCounterSat, 33 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2546 SdHoareTripleChecker+Valid, 2701 SdHoareTripleChecker+Invalid, 1766 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 33 IncrementalHoareTripleChecker+Valid, 1733 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.3s IncrementalHoareTripleChecker+Time [2023-12-25 09:40:44,806 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [2546 Valid, 2701 Invalid, 1766 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [33 Valid, 1733 Invalid, 0 Unknown, 0 Unchecked, 1.3s Time] [2023-12-25 09:40:44,998 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 280109 states. [2023-12-25 09:40:47,246 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 280109 to 206179. [2023-12-25 09:40:47,662 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 206179 states, 206178 states have (on average 1.240607630300032) internal successors, (255786), 206178 states have internal predecessors, (255786), 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) [2023-12-25 09:40:47,949 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 206179 states to 206179 states and 255786 transitions. [2023-12-25 09:40:47,949 INFO L78 Accepts]: Start accepts. Automaton has 206179 states and 255786 transitions. Word has length 115 [2023-12-25 09:40:47,949 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-25 09:40:47,949 INFO L495 AbstractCegarLoop]: Abstraction has 206179 states and 255786 transitions. [2023-12-25 09:40:47,949 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 16 states, 16 states have (on average 13.75) internal successors, (220), 15 states have internal predecessors, (220), 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) [2023-12-25 09:40:47,949 INFO L276 IsEmpty]: Start isEmpty. Operand 206179 states and 255786 transitions. [2023-12-25 09:40:47,957 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 117 [2023-12-25 09:40:47,957 INFO L187 NwaCegarLoop]: Found error trace [2023-12-25 09:40:47,957 INFO L195 NwaCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-25 09:40:47,960 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 (49)] Ended with exit code 0 [2023-12-25 09:40:48,160 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 49 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2023-12-25 09:40:48,160 INFO L420 AbstractCegarLoop]: === Iteration 49 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-25 09:40:48,161 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-25 09:40:48,161 INFO L85 PathProgramCache]: Analyzing trace with hash 762390249, now seen corresponding path program 1 times [2023-12-25 09:40:48,161 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-12-25 09:40:48,161 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1224602234] [2023-12-25 09:40:48,161 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-25 09:40:48,161 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 [2023-12-25 09:40:48,161 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2023-12-25 09:40:48,162 INFO L229 MonitoredProcess]: Starting monitored process 50 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) [2023-12-25 09:40:48,163 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (50)] Waiting until timeout for monitored process [2023-12-25 09:40:48,301 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-25 09:40:48,304 INFO L262 TraceCheckSpWp]: Trace formula consists of 302 conjuncts, 2 conjunts are in the unsatisfiable core [2023-12-25 09:40:48,305 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-25 09:40:48,326 INFO L134 CoverageAnalysis]: Checked inductivity of 18 backedges. 18 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-12-25 09:40:48,326 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-12-25 09:40:48,327 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-12-25 09:40:48,327 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1224602234] [2023-12-25 09:40:48,327 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1224602234] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-25 09:40:48,327 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-25 09:40:48,327 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2023-12-25 09:40:48,327 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1178809375] [2023-12-25 09:40:48,327 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-25 09:40:48,327 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-12-25 09:40:48,327 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-12-25 09:40:48,327 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-12-25 09:40:48,327 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-12-25 09:40:48,328 INFO L87 Difference]: Start difference. First operand 206179 states and 255786 transitions. Second operand has 3 states, 3 states have (on average 38.666666666666664) internal successors, (116), 3 states have internal predecessors, (116), 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) [2023-12-25 09:40:49,227 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-25 09:40:49,227 INFO L93 Difference]: Finished difference Result 304661 states and 379084 transitions. [2023-12-25 09:40:49,227 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-12-25 09:40:49,228 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 38.666666666666664) internal successors, (116), 3 states have internal predecessors, (116), 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 116 [2023-12-25 09:40:49,228 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-25 09:40:49,364 INFO L225 Difference]: With dead ends: 304661 [2023-12-25 09:40:49,365 INFO L226 Difference]: Without dead ends: 100363 [2023-12-25 09:40:49,436 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 115 GetRequests, 114 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-12-25 09:40:49,436 INFO L413 NwaCegarLoop]: 380 mSDtfsCounter, 205 mSDsluCounter, 167 mSDsCounter, 0 mSdLazyCounter, 16 mSolverCounterSat, 8 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 205 SdHoareTripleChecker+Valid, 547 SdHoareTripleChecker+Invalid, 24 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 8 IncrementalHoareTripleChecker+Valid, 16 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2023-12-25 09:40:49,437 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [205 Valid, 547 Invalid, 24 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [8 Valid, 16 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2023-12-25 09:40:49,501 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 100363 states. [2023-12-25 09:40:50,434 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 100363 to 95673. [2023-12-25 09:40:50,505 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 95673 states, 95672 states have (on average 1.2295342419934776) internal successors, (117632), 95672 states have internal predecessors, (117632), 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) [2023-12-25 09:40:50,623 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 95673 states to 95673 states and 117632 transitions. [2023-12-25 09:40:50,623 INFO L78 Accepts]: Start accepts. Automaton has 95673 states and 117632 transitions. Word has length 116 [2023-12-25 09:40:50,623 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-25 09:40:50,623 INFO L495 AbstractCegarLoop]: Abstraction has 95673 states and 117632 transitions. [2023-12-25 09:40:50,623 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 38.666666666666664) internal successors, (116), 3 states have internal predecessors, (116), 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) [2023-12-25 09:40:50,623 INFO L276 IsEmpty]: Start isEmpty. Operand 95673 states and 117632 transitions. [2023-12-25 09:40:50,629 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 117 [2023-12-25 09:40:50,629 INFO L187 NwaCegarLoop]: Found error trace [2023-12-25 09:40:50,629 INFO L195 NwaCegarLoop]: trace histogram [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] [2023-12-25 09:40:50,633 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 (50)] Forceful destruction successful, exit code 0 [2023-12-25 09:40:50,830 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 50 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2023-12-25 09:40:50,831 INFO L420 AbstractCegarLoop]: === Iteration 50 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-25 09:40:50,831 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-25 09:40:50,831 INFO L85 PathProgramCache]: Analyzing trace with hash 1600195917, now seen corresponding path program 1 times [2023-12-25 09:40:50,831 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-12-25 09:40:50,831 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1951284841] [2023-12-25 09:40:50,831 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-25 09:40:50,832 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 [2023-12-25 09:40:50,832 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2023-12-25 09:40:50,833 INFO L229 MonitoredProcess]: Starting monitored process 51 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) [2023-12-25 09:40:50,834 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 (51)] Waiting until timeout for monitored process [2023-12-25 09:40:50,980 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-25 09:40:50,983 INFO L262 TraceCheckSpWp]: Trace formula consists of 305 conjuncts, 4 conjunts are in the unsatisfiable core [2023-12-25 09:40:50,985 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-25 09:40:51,114 INFO L134 CoverageAnalysis]: Checked inductivity of 15 backedges. 3 proven. 10 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2023-12-25 09:40:51,114 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-12-25 09:40:51,243 INFO L134 CoverageAnalysis]: Checked inductivity of 15 backedges. 3 proven. 10 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2023-12-25 09:40:51,244 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-12-25 09:40:51,244 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1951284841] [2023-12-25 09:40:51,244 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1951284841] provided 0 perfect and 2 imperfect interpolant sequences [2023-12-25 09:40:51,244 INFO L185 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2023-12-25 09:40:51,244 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [5, 5] total 8 [2023-12-25 09:40:51,244 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1510063387] [2023-12-25 09:40:51,244 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2023-12-25 09:40:51,244 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2023-12-25 09:40:51,244 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-12-25 09:40:51,245 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2023-12-25 09:40:51,245 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=21, Invalid=35, Unknown=0, NotChecked=0, Total=56 [2023-12-25 09:40:51,245 INFO L87 Difference]: Start difference. First operand 95673 states and 117632 transitions. Second operand has 8 states, 8 states have (on average 28.0) internal successors, (224), 8 states have internal predecessors, (224), 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) [2023-12-25 09:40:52,022 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-25 09:40:52,022 INFO L93 Difference]: Finished difference Result 315102 states and 386197 transitions. [2023-12-25 09:40:52,022 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2023-12-25 09:40:52,022 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 8 states have (on average 28.0) internal successors, (224), 8 states have internal predecessors, (224), 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 116 [2023-12-25 09:40:52,023 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-25 09:40:52,299 INFO L225 Difference]: With dead ends: 315102 [2023-12-25 09:40:52,300 INFO L226 Difference]: Without dead ends: 221170 [2023-12-25 09:40:52,379 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 230 GetRequests, 224 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=21, Invalid=35, Unknown=0, NotChecked=0, Total=56 [2023-12-25 09:40:52,379 INFO L413 NwaCegarLoop]: 388 mSDtfsCounter, 1028 mSDsluCounter, 918 mSDsCounter, 0 mSdLazyCounter, 91 mSolverCounterSat, 4 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1028 SdHoareTripleChecker+Valid, 1306 SdHoareTripleChecker+Invalid, 95 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 4 IncrementalHoareTripleChecker+Valid, 91 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2023-12-25 09:40:52,380 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1028 Valid, 1306 Invalid, 95 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [4 Valid, 91 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2023-12-25 09:40:52,789 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 221170 states. [2023-12-25 09:40:54,531 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 221170 to 219826. [2023-12-25 09:40:54,675 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 219826 states, 219825 states have (on average 1.1932446264073695) internal successors, (262305), 219825 states have internal predecessors, (262305), 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) [2023-12-25 09:40:55,234 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 219826 states to 219826 states and 262305 transitions. [2023-12-25 09:40:55,234 INFO L78 Accepts]: Start accepts. Automaton has 219826 states and 262305 transitions. Word has length 116 [2023-12-25 09:40:55,234 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-25 09:40:55,234 INFO L495 AbstractCegarLoop]: Abstraction has 219826 states and 262305 transitions. [2023-12-25 09:40:55,235 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 8 states have (on average 28.0) internal successors, (224), 8 states have internal predecessors, (224), 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) [2023-12-25 09:40:55,235 INFO L276 IsEmpty]: Start isEmpty. Operand 219826 states and 262305 transitions. [2023-12-25 09:40:55,240 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 118 [2023-12-25 09:40:55,240 INFO L187 NwaCegarLoop]: Found error trace [2023-12-25 09:40:55,240 INFO L195 NwaCegarLoop]: trace histogram [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] [2023-12-25 09:40:55,244 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 (51)] Forceful destruction successful, exit code 0 [2023-12-25 09:40:55,444 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 51 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2023-12-25 09:40:55,445 INFO L420 AbstractCegarLoop]: === Iteration 51 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-25 09:40:55,445 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-25 09:40:55,445 INFO L85 PathProgramCache]: Analyzing trace with hash -890803757, now seen corresponding path program 1 times [2023-12-25 09:40:55,445 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-12-25 09:40:55,445 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1179669398] [2023-12-25 09:40:55,445 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-25 09:40:55,445 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 [2023-12-25 09:40:55,446 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2023-12-25 09:40:55,446 INFO L229 MonitoredProcess]: Starting monitored process 52 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) [2023-12-25 09:40:55,447 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 (52)] Waiting until timeout for monitored process [2023-12-25 09:40:55,610 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-25 09:40:55,613 INFO L262 TraceCheckSpWp]: Trace formula consists of 307 conjuncts, 5 conjunts are in the unsatisfiable core [2023-12-25 09:40:55,614 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-25 09:40:55,795 INFO L134 CoverageAnalysis]: Checked inductivity of 14 backedges. 10 proven. 4 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-12-25 09:40:55,796 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-12-25 09:40:55,846 INFO L134 CoverageAnalysis]: Checked inductivity of 14 backedges. 10 proven. 4 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-12-25 09:40:55,846 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-12-25 09:40:55,846 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1179669398] [2023-12-25 09:40:55,846 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1179669398] provided 0 perfect and 2 imperfect interpolant sequences [2023-12-25 09:40:55,846 INFO L185 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2023-12-25 09:40:55,847 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [5, 5] total 9 [2023-12-25 09:40:55,847 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1726511884] [2023-12-25 09:40:55,847 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2023-12-25 09:40:55,847 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2023-12-25 09:40:55,847 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-12-25 09:40:55,847 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2023-12-25 09:40:55,848 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=21, Invalid=51, Unknown=0, NotChecked=0, Total=72 [2023-12-25 09:40:55,848 INFO L87 Difference]: Start difference. First operand 219826 states and 262305 transitions. Second operand has 9 states, 9 states have (on average 23.77777777777778) internal successors, (214), 9 states have internal predecessors, (214), 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) [2023-12-25 09:40:57,111 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-25 09:40:57,111 INFO L93 Difference]: Finished difference Result 374868 states and 445994 transitions. [2023-12-25 09:40:57,112 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2023-12-25 09:40:57,112 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 9 states have (on average 23.77777777777778) internal successors, (214), 9 states have internal predecessors, (214), 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 117 [2023-12-25 09:40:57,112 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-25 09:40:57,372 INFO L225 Difference]: With dead ends: 374868 [2023-12-25 09:40:57,372 INFO L226 Difference]: Without dead ends: 197128 [2023-12-25 09:40:57,477 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 237 GetRequests, 226 SyntacticMatches, 0 SemanticMatches, 11 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 17 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=54, Invalid=102, Unknown=0, NotChecked=0, Total=156 [2023-12-25 09:40:57,477 INFO L413 NwaCegarLoop]: 240 mSDtfsCounter, 1290 mSDsluCounter, 699 mSDsCounter, 0 mSdLazyCounter, 468 mSolverCounterSat, 65 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1290 SdHoareTripleChecker+Valid, 939 SdHoareTripleChecker+Invalid, 533 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 65 IncrementalHoareTripleChecker+Valid, 468 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2023-12-25 09:40:57,478 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1290 Valid, 939 Invalid, 533 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [65 Valid, 468 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2023-12-25 09:40:57,875 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 197128 states. [2023-12-25 09:40:59,170 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 197128 to 183744. [2023-12-25 09:40:59,290 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 183744 states, 183743 states have (on average 1.1780965805500074) internal successors, (216467), 183743 states have internal predecessors, (216467), 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) [2023-12-25 09:40:59,982 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 183744 states to 183744 states and 216467 transitions. [2023-12-25 09:40:59,982 INFO L78 Accepts]: Start accepts. Automaton has 183744 states and 216467 transitions. Word has length 117 [2023-12-25 09:40:59,983 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-25 09:40:59,983 INFO L495 AbstractCegarLoop]: Abstraction has 183744 states and 216467 transitions. [2023-12-25 09:40:59,985 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 9 states have (on average 23.77777777777778) internal successors, (214), 9 states have internal predecessors, (214), 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) [2023-12-25 09:40:59,985 INFO L276 IsEmpty]: Start isEmpty. Operand 183744 states and 216467 transitions. [2023-12-25 09:40:59,990 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 118 [2023-12-25 09:40:59,990 INFO L187 NwaCegarLoop]: Found error trace [2023-12-25 09:40:59,990 INFO L195 NwaCegarLoop]: trace histogram [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] [2023-12-25 09:40:59,993 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 (52)] Ended with exit code 0 [2023-12-25 09:41:00,193 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 52 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2023-12-25 09:41:00,193 INFO L420 AbstractCegarLoop]: === Iteration 52 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-25 09:41:00,194 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-25 09:41:00,194 INFO L85 PathProgramCache]: Analyzing trace with hash -1878880761, now seen corresponding path program 1 times [2023-12-25 09:41:00,194 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-12-25 09:41:00,194 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [95357915] [2023-12-25 09:41:00,194 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-25 09:41:00,194 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2023-12-25 09:41:00,195 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2023-12-25 09:41:00,196 INFO L229 MonitoredProcess]: Starting monitored process 53 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) [2023-12-25 09:41:00,229 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 (53)] Waiting until timeout for monitored process [2023-12-25 09:41:00,356 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-25 09:41:00,359 INFO L262 TraceCheckSpWp]: Trace formula consists of 307 conjuncts, 5 conjunts are in the unsatisfiable core [2023-12-25 09:41:00,361 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-25 09:41:00,567 INFO L134 CoverageAnalysis]: Checked inductivity of 14 backedges. 8 proven. 6 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-12-25 09:41:00,568 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-12-25 09:41:00,631 INFO L134 CoverageAnalysis]: Checked inductivity of 14 backedges. 8 proven. 6 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-12-25 09:41:00,631 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-12-25 09:41:00,631 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [95357915] [2023-12-25 09:41:00,631 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [95357915] provided 0 perfect and 2 imperfect interpolant sequences [2023-12-25 09:41:00,631 INFO L185 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2023-12-25 09:41:00,631 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [5, 5] total 9 [2023-12-25 09:41:00,632 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2090754508] [2023-12-25 09:41:00,632 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2023-12-25 09:41:00,632 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2023-12-25 09:41:00,632 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-12-25 09:41:00,634 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2023-12-25 09:41:00,634 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=21, Invalid=51, Unknown=0, NotChecked=0, Total=72 [2023-12-25 09:41:00,634 INFO L87 Difference]: Start difference. First operand 183744 states and 216467 transitions. Second operand has 9 states, 9 states have (on average 24.22222222222222) internal successors, (218), 9 states have internal predecessors, (218), 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) [2023-12-25 09:41:02,050 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-25 09:41:02,050 INFO L93 Difference]: Finished difference Result 375386 states and 441594 transitions. [2023-12-25 09:41:02,050 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2023-12-25 09:41:02,050 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 9 states have (on average 24.22222222222222) internal successors, (218), 9 states have internal predecessors, (218), 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 117 [2023-12-25 09:41:02,051 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-25 09:41:02,381 INFO L225 Difference]: With dead ends: 375386 [2023-12-25 09:41:02,381 INFO L226 Difference]: Without dead ends: 231544 [2023-12-25 09:41:02,478 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 237 GetRequests, 226 SyntacticMatches, 0 SemanticMatches, 11 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 17 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=54, Invalid=102, Unknown=0, NotChecked=0, Total=156 [2023-12-25 09:41:02,479 INFO L413 NwaCegarLoop]: 280 mSDtfsCounter, 1678 mSDsluCounter, 559 mSDsCounter, 0 mSdLazyCounter, 437 mSolverCounterSat, 77 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1678 SdHoareTripleChecker+Valid, 839 SdHoareTripleChecker+Invalid, 514 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 77 IncrementalHoareTripleChecker+Valid, 437 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2023-12-25 09:41:02,479 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1678 Valid, 839 Invalid, 514 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [77 Valid, 437 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2023-12-25 09:41:02,883 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 231544 states. [2023-12-25 09:41:04,522 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 231544 to 178049. [2023-12-25 09:41:04,606 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 178049 states, 178048 states have (on average 1.1709482836089145) internal successors, (208485), 178048 states have internal predecessors, (208485), 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) [2023-12-25 09:41:04,818 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 178049 states to 178049 states and 208485 transitions. [2023-12-25 09:41:04,818 INFO L78 Accepts]: Start accepts. Automaton has 178049 states and 208485 transitions. Word has length 117 [2023-12-25 09:41:04,818 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-25 09:41:04,818 INFO L495 AbstractCegarLoop]: Abstraction has 178049 states and 208485 transitions. [2023-12-25 09:41:04,818 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 9 states have (on average 24.22222222222222) internal successors, (218), 9 states have internal predecessors, (218), 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) [2023-12-25 09:41:04,819 INFO L276 IsEmpty]: Start isEmpty. Operand 178049 states and 208485 transitions. [2023-12-25 09:41:04,825 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 124 [2023-12-25 09:41:04,825 INFO L187 NwaCegarLoop]: Found error trace [2023-12-25 09:41:04,825 INFO L195 NwaCegarLoop]: trace histogram [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] [2023-12-25 09:41:04,830 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 (53)] Forceful destruction successful, exit code 0 [2023-12-25 09:41:05,026 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 53 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2023-12-25 09:41:05,026 INFO L420 AbstractCegarLoop]: === Iteration 53 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-25 09:41:05,026 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-25 09:41:05,026 INFO L85 PathProgramCache]: Analyzing trace with hash -1539498732, now seen corresponding path program 1 times [2023-12-25 09:41:05,027 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-12-25 09:41:05,027 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [827285153] [2023-12-25 09:41:05,027 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-25 09:41:05,027 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 [2023-12-25 09:41:05,027 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2023-12-25 09:41:05,028 INFO L229 MonitoredProcess]: Starting monitored process 54 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) [2023-12-25 09:41:05,029 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 (54)] Waiting until timeout for monitored process [2023-12-25 09:41:05,172 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-25 09:41:05,175 INFO L262 TraceCheckSpWp]: Trace formula consists of 316 conjuncts, 5 conjunts are in the unsatisfiable core [2023-12-25 09:41:05,176 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-25 09:41:05,861 INFO L134 CoverageAnalysis]: Checked inductivity of 14 backedges. 8 proven. 0 refuted. 0 times theorem prover too weak. 6 trivial. 0 not checked. [2023-12-25 09:41:05,861 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-12-25 09:41:05,861 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-12-25 09:41:05,861 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [827285153] [2023-12-25 09:41:05,861 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [827285153] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-25 09:41:05,861 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-25 09:41:05,861 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2023-12-25 09:41:05,861 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [6074489] [2023-12-25 09:41:05,861 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-25 09:41:05,861 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2023-12-25 09:41:05,861 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-12-25 09:41:05,862 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2023-12-25 09:41:05,862 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=15, Unknown=0, NotChecked=0, Total=30 [2023-12-25 09:41:05,862 INFO L87 Difference]: Start difference. First operand 178049 states and 208485 transitions. Second operand has 6 states, 6 states have (on average 20.0) internal successors, (120), 6 states have internal predecessors, (120), 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) [2023-12-25 09:41:06,409 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-25 09:41:06,409 INFO L93 Difference]: Finished difference Result 241816 states and 285231 transitions. [2023-12-25 09:41:06,617 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2023-12-25 09:41:06,617 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 20.0) internal successors, (120), 6 states have internal predecessors, (120), 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 123 [2023-12-25 09:41:06,617 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-25 09:41:06,868 INFO L225 Difference]: With dead ends: 241816 [2023-12-25 09:41:06,869 INFO L226 Difference]: Without dead ends: 208117 [2023-12-25 09:41:06,912 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 122 GetRequests, 118 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=15, Invalid=15, Unknown=0, NotChecked=0, Total=30 [2023-12-25 09:41:06,912 INFO L413 NwaCegarLoop]: 428 mSDtfsCounter, 726 mSDsluCounter, 724 mSDsCounter, 0 mSdLazyCounter, 87 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 726 SdHoareTripleChecker+Valid, 1152 SdHoareTripleChecker+Invalid, 88 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 87 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2023-12-25 09:41:06,912 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [726 Valid, 1152 Invalid, 88 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 87 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2023-12-25 09:41:07,067 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 208117 states. [2023-12-25 09:41:08,655 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 208117 to 193378. [2023-12-25 09:41:08,761 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 193378 states, 193377 states have (on average 1.1685567570083308) internal successors, (225972), 193377 states have internal predecessors, (225972), 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) [2023-12-25 09:41:09,007 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 193378 states to 193378 states and 225972 transitions. [2023-12-25 09:41:09,008 INFO L78 Accepts]: Start accepts. Automaton has 193378 states and 225972 transitions. Word has length 123 [2023-12-25 09:41:09,008 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-25 09:41:09,008 INFO L495 AbstractCegarLoop]: Abstraction has 193378 states and 225972 transitions. [2023-12-25 09:41:09,008 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 20.0) internal successors, (120), 6 states have internal predecessors, (120), 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) [2023-12-25 09:41:09,008 INFO L276 IsEmpty]: Start isEmpty. Operand 193378 states and 225972 transitions. [2023-12-25 09:41:09,016 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 127 [2023-12-25 09:41:09,016 INFO L187 NwaCegarLoop]: Found error trace [2023-12-25 09:41:09,016 INFO L195 NwaCegarLoop]: trace histogram [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] [2023-12-25 09:41:09,021 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 (54)] Forceful destruction successful, exit code 0 [2023-12-25 09:41:09,216 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 54 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2023-12-25 09:41:09,217 INFO L420 AbstractCegarLoop]: === Iteration 54 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-25 09:41:09,217 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-25 09:41:09,217 INFO L85 PathProgramCache]: Analyzing trace with hash -1933706726, now seen corresponding path program 1 times [2023-12-25 09:41:09,217 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-12-25 09:41:09,217 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [2119786601] [2023-12-25 09:41:09,218 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-25 09:41:09,218 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 [2023-12-25 09:41:09,218 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2023-12-25 09:41:09,219 INFO L229 MonitoredProcess]: Starting monitored process 55 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) [2023-12-25 09:41:09,220 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 (55)] Waiting until timeout for monitored process [2023-12-25 09:41:09,366 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-25 09:41:09,369 INFO L262 TraceCheckSpWp]: Trace formula consists of 318 conjuncts, 5 conjunts are in the unsatisfiable core [2023-12-25 09:41:09,370 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-25 09:41:10,139 INFO L134 CoverageAnalysis]: Checked inductivity of 14 backedges. 10 proven. 0 refuted. 0 times theorem prover too weak. 4 trivial. 0 not checked. [2023-12-25 09:41:10,139 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-12-25 09:41:10,139 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-12-25 09:41:10,139 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [2119786601] [2023-12-25 09:41:10,139 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [2119786601] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-25 09:41:10,139 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-25 09:41:10,139 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2023-12-25 09:41:10,139 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [674572659] [2023-12-25 09:41:10,139 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-25 09:41:10,140 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2023-12-25 09:41:10,140 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-12-25 09:41:10,140 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2023-12-25 09:41:10,140 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=15, Unknown=0, NotChecked=0, Total=30 [2023-12-25 09:41:10,140 INFO L87 Difference]: Start difference. First operand 193378 states and 225972 transitions. Second operand has 6 states, 6 states have (on average 20.666666666666668) internal successors, (124), 6 states have internal predecessors, (124), 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) [2023-12-25 09:41:10,805 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-25 09:41:10,805 INFO L93 Difference]: Finished difference Result 225757 states and 264854 transitions. [2023-12-25 09:41:10,806 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2023-12-25 09:41:10,806 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 20.666666666666668) internal successors, (124), 6 states have internal predecessors, (124), 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 126 [2023-12-25 09:41:10,806 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-25 09:41:11,035 INFO L225 Difference]: With dead ends: 225757 [2023-12-25 09:41:11,035 INFO L226 Difference]: Without dead ends: 214147 [2023-12-25 09:41:11,063 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 125 GetRequests, 121 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=15, Invalid=15, Unknown=0, NotChecked=0, Total=30 [2023-12-25 09:41:11,063 INFO L413 NwaCegarLoop]: 429 mSDtfsCounter, 598 mSDsluCounter, 766 mSDsCounter, 0 mSdLazyCounter, 104 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 598 SdHoareTripleChecker+Valid, 1195 SdHoareTripleChecker+Invalid, 105 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 104 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2023-12-25 09:41:11,063 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [598 Valid, 1195 Invalid, 105 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 104 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2023-12-25 09:41:11,183 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 214147 states. [2023-12-25 09:41:12,725 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 214147 to 204152. [2023-12-25 09:41:12,858 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 204152 states, 204151 states have (on average 1.1674936689019402) internal successors, (238345), 204151 states have internal predecessors, (238345), 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) [2023-12-25 09:41:13,406 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 204152 states to 204152 states and 238345 transitions. [2023-12-25 09:41:13,406 INFO L78 Accepts]: Start accepts. Automaton has 204152 states and 238345 transitions. Word has length 126 [2023-12-25 09:41:13,406 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-25 09:41:13,406 INFO L495 AbstractCegarLoop]: Abstraction has 204152 states and 238345 transitions. [2023-12-25 09:41:13,406 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 20.666666666666668) internal successors, (124), 6 states have internal predecessors, (124), 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) [2023-12-25 09:41:13,406 INFO L276 IsEmpty]: Start isEmpty. Operand 204152 states and 238345 transitions. [2023-12-25 09:41:13,412 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 127 [2023-12-25 09:41:13,412 INFO L187 NwaCegarLoop]: Found error trace [2023-12-25 09:41:13,413 INFO L195 NwaCegarLoop]: trace histogram [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] [2023-12-25 09:41:13,415 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 (55)] Forceful destruction successful, exit code 0 [2023-12-25 09:41:13,613 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 55 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2023-12-25 09:41:13,613 INFO L420 AbstractCegarLoop]: === Iteration 55 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-25 09:41:13,613 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-25 09:41:13,613 INFO L85 PathProgramCache]: Analyzing trace with hash 915924028, now seen corresponding path program 1 times [2023-12-25 09:41:13,614 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-12-25 09:41:13,614 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1526185336] [2023-12-25 09:41:13,614 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-25 09:41:13,614 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2023-12-25 09:41:13,614 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2023-12-25 09:41:13,615 INFO L229 MonitoredProcess]: Starting monitored process 56 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) [2023-12-25 09:41:13,615 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 (56)] Waiting until timeout for monitored process [2023-12-25 09:41:13,756 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-25 09:41:13,759 INFO L262 TraceCheckSpWp]: Trace formula consists of 317 conjuncts, 8 conjunts are in the unsatisfiable core [2023-12-25 09:41:13,760 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-25 09:41:14,452 INFO L134 CoverageAnalysis]: Checked inductivity of 14 backedges. 12 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-12-25 09:41:14,452 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-12-25 09:41:14,686 INFO L134 CoverageAnalysis]: Checked inductivity of 14 backedges. 12 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-12-25 09:41:14,686 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-12-25 09:41:14,686 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1526185336] [2023-12-25 09:41:14,686 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1526185336] provided 0 perfect and 2 imperfect interpolant sequences [2023-12-25 09:41:14,686 INFO L185 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2023-12-25 09:41:14,687 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [8, 8] total 15 [2023-12-25 09:41:14,687 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [742468248] [2023-12-25 09:41:14,687 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2023-12-25 09:41:14,687 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 16 states [2023-12-25 09:41:14,687 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-12-25 09:41:14,688 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 16 interpolants. [2023-12-25 09:41:14,689 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=48, Invalid=192, Unknown=0, NotChecked=0, Total=240 [2023-12-25 09:41:14,689 INFO L87 Difference]: Start difference. First operand 204152 states and 238345 transitions. Second operand has 16 states, 16 states have (on average 14.3125) internal successors, (229), 15 states have internal predecessors, (229), 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) [2023-12-25 09:41:17,707 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-25 09:41:17,707 INFO L93 Difference]: Finished difference Result 530172 states and 621398 transitions. [2023-12-25 09:41:17,708 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 23 states. [2023-12-25 09:41:17,708 INFO L78 Accepts]: Start accepts. Automaton has has 16 states, 16 states have (on average 14.3125) internal successors, (229), 15 states have internal predecessors, (229), 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 126 [2023-12-25 09:41:17,708 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-25 09:41:18,170 INFO L225 Difference]: With dead ends: 530172 [2023-12-25 09:41:18,170 INFO L226 Difference]: Without dead ends: 358303 [2023-12-25 09:41:18,294 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 270 GetRequests, 236 SyntacticMatches, 0 SemanticMatches, 34 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 213 ImplicationChecksByTransitivity, 0.6s TimeCoverageRelationStatistics Valid=354, Invalid=906, Unknown=0, NotChecked=0, Total=1260 [2023-12-25 09:41:18,294 INFO L413 NwaCegarLoop]: 370 mSDtfsCounter, 1522 mSDsluCounter, 2200 mSDsCounter, 0 mSdLazyCounter, 1622 mSolverCounterSat, 12 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1522 SdHoareTripleChecker+Valid, 2570 SdHoareTripleChecker+Invalid, 1634 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 12 IncrementalHoareTripleChecker+Valid, 1622 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.2s IncrementalHoareTripleChecker+Time [2023-12-25 09:41:18,295 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1522 Valid, 2570 Invalid, 1634 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [12 Valid, 1622 Invalid, 0 Unknown, 0 Unchecked, 1.2s Time] [2023-12-25 09:41:18,560 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 358303 states. [2023-12-25 09:41:21,366 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 358303 to 246735. [2023-12-25 09:41:21,516 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 246735 states, 246734 states have (on average 1.1690889784140006) internal successors, (288454), 246734 states have internal predecessors, (288454), 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) [2023-12-25 09:41:22,156 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 246735 states to 246735 states and 288454 transitions. [2023-12-25 09:41:22,156 INFO L78 Accepts]: Start accepts. Automaton has 246735 states and 288454 transitions. Word has length 126 [2023-12-25 09:41:22,157 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-25 09:41:22,157 INFO L495 AbstractCegarLoop]: Abstraction has 246735 states and 288454 transitions. [2023-12-25 09:41:22,157 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 16 states, 16 states have (on average 14.3125) internal successors, (229), 15 states have internal predecessors, (229), 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) [2023-12-25 09:41:22,157 INFO L276 IsEmpty]: Start isEmpty. Operand 246735 states and 288454 transitions. [2023-12-25 09:41:22,165 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 128 [2023-12-25 09:41:22,165 INFO L187 NwaCegarLoop]: Found error trace [2023-12-25 09:41:22,165 INFO L195 NwaCegarLoop]: trace histogram [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] [2023-12-25 09:41:22,168 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 (56)] Ended with exit code 0 [2023-12-25 09:41:22,365 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 56 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2023-12-25 09:41:22,366 INFO L420 AbstractCegarLoop]: === Iteration 56 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-25 09:41:22,366 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-25 09:41:22,366 INFO L85 PathProgramCache]: Analyzing trace with hash -831409802, now seen corresponding path program 1 times [2023-12-25 09:41:22,367 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-12-25 09:41:22,367 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [496222529] [2023-12-25 09:41:22,367 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-25 09:41:22,367 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 [2023-12-25 09:41:22,367 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2023-12-25 09:41:22,368 INFO L229 MonitoredProcess]: Starting monitored process 57 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) [2023-12-25 09:41:22,368 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 (57)] Waiting until timeout for monitored process [2023-12-25 09:41:22,513 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-25 09:41:22,516 INFO L262 TraceCheckSpWp]: Trace formula consists of 317 conjuncts, 8 conjunts are in the unsatisfiable core [2023-12-25 09:41:22,518 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-25 09:41:22,760 INFO L134 CoverageAnalysis]: Checked inductivity of 14 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 14 trivial. 0 not checked. [2023-12-25 09:41:22,760 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-12-25 09:41:22,760 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-12-25 09:41:22,761 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [496222529] [2023-12-25 09:41:22,761 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [496222529] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-25 09:41:22,761 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-25 09:41:22,761 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2023-12-25 09:41:22,761 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [986967890] [2023-12-25 09:41:22,761 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-25 09:41:22,761 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2023-12-25 09:41:22,761 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-12-25 09:41:22,761 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2023-12-25 09:41:22,761 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=21, Invalid=51, Unknown=0, NotChecked=0, Total=72 [2023-12-25 09:41:22,762 INFO L87 Difference]: Start difference. First operand 246735 states and 288454 transitions. Second operand has 9 states, 9 states have (on average 13.222222222222221) internal successors, (119), 8 states have internal predecessors, (119), 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) [2023-12-25 09:41:24,508 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-25 09:41:24,508 INFO L93 Difference]: Finished difference Result 293023 states and 342600 transitions. [2023-12-25 09:41:24,509 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2023-12-25 09:41:24,509 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 9 states have (on average 13.222222222222221) internal successors, (119), 8 states have internal predecessors, (119), 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 127 [2023-12-25 09:41:24,509 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-25 09:41:25,114 INFO L225 Difference]: With dead ends: 293023 [2023-12-25 09:41:25,115 INFO L226 Difference]: Without dead ends: 267064 [2023-12-25 09:41:25,164 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 134 GetRequests, 119 SyntacticMatches, 0 SemanticMatches, 15 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 18 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=82, Invalid=190, Unknown=0, NotChecked=0, Total=272 [2023-12-25 09:41:25,164 INFO L413 NwaCegarLoop]: 273 mSDtfsCounter, 1029 mSDsluCounter, 1023 mSDsCounter, 0 mSdLazyCounter, 853 mSolverCounterSat, 5 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.8s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1029 SdHoareTripleChecker+Valid, 1296 SdHoareTripleChecker+Invalid, 858 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 5 IncrementalHoareTripleChecker+Valid, 853 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.9s IncrementalHoareTripleChecker+Time [2023-12-25 09:41:25,180 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1029 Valid, 1296 Invalid, 858 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [5 Valid, 853 Invalid, 0 Unknown, 0 Unchecked, 0.9s Time] [2023-12-25 09:41:25,346 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 267064 states. [2023-12-25 09:41:27,763 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 267064 to 246735. [2023-12-25 09:41:27,891 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 246735 states, 246734 states have (on average 1.1690849254662916) internal successors, (288453), 246734 states have internal predecessors, (288453), 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) [2023-12-25 09:41:28,211 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 246735 states to 246735 states and 288453 transitions. [2023-12-25 09:41:28,211 INFO L78 Accepts]: Start accepts. Automaton has 246735 states and 288453 transitions. Word has length 127 [2023-12-25 09:41:28,212 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-25 09:41:28,212 INFO L495 AbstractCegarLoop]: Abstraction has 246735 states and 288453 transitions. [2023-12-25 09:41:28,212 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 9 states have (on average 13.222222222222221) internal successors, (119), 8 states have internal predecessors, (119), 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) [2023-12-25 09:41:28,212 INFO L276 IsEmpty]: Start isEmpty. Operand 246735 states and 288453 transitions. [2023-12-25 09:41:28,219 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 129 [2023-12-25 09:41:28,220 INFO L187 NwaCegarLoop]: Found error trace [2023-12-25 09:41:28,220 INFO L195 NwaCegarLoop]: trace histogram [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] [2023-12-25 09:41:28,223 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 (57)] Forceful destruction successful, exit code 0 [2023-12-25 09:41:28,420 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 57 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2023-12-25 09:41:28,420 INFO L420 AbstractCegarLoop]: === Iteration 57 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-25 09:41:28,421 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-25 09:41:28,421 INFO L85 PathProgramCache]: Analyzing trace with hash 277462842, now seen corresponding path program 1 times [2023-12-25 09:41:28,421 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-12-25 09:41:28,421 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [885621519] [2023-12-25 09:41:28,422 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-25 09:41:28,422 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 [2023-12-25 09:41:28,422 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2023-12-25 09:41:28,423 INFO L229 MonitoredProcess]: Starting monitored process 58 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) [2023-12-25 09:41:28,423 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 (58)] Waiting until timeout for monitored process [2023-12-25 09:41:28,568 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-25 09:41:28,571 INFO L262 TraceCheckSpWp]: Trace formula consists of 320 conjuncts, 8 conjunts are in the unsatisfiable core [2023-12-25 09:41:28,572 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-25 09:41:29,459 INFO L134 CoverageAnalysis]: Checked inductivity of 14 backedges. 10 proven. 4 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-12-25 09:41:29,460 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-12-25 09:41:29,649 INFO L134 CoverageAnalysis]: Checked inductivity of 14 backedges. 10 proven. 4 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-12-25 09:41:29,650 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-12-25 09:41:29,650 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [885621519] [2023-12-25 09:41:29,650 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [885621519] provided 0 perfect and 2 imperfect interpolant sequences [2023-12-25 09:41:29,650 INFO L185 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2023-12-25 09:41:29,650 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [8, 8] total 15 [2023-12-25 09:41:29,650 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1248447152] [2023-12-25 09:41:29,650 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2023-12-25 09:41:29,650 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 16 states [2023-12-25 09:41:29,650 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-12-25 09:41:29,651 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 16 interpolants. [2023-12-25 09:41:29,651 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=48, Invalid=192, Unknown=0, NotChecked=0, Total=240 [2023-12-25 09:41:29,651 INFO L87 Difference]: Start difference. First operand 246735 states and 288453 transitions. Second operand has 16 states, 16 states have (on average 14.8125) internal successors, (237), 15 states have internal predecessors, (237), 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) [2023-12-25 09:41:31,835 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-25 09:41:31,836 INFO L93 Difference]: Finished difference Result 422991 states and 496954 transitions. [2023-12-25 09:41:31,836 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2023-12-25 09:41:31,836 INFO L78 Accepts]: Start accepts. Automaton has has 16 states, 16 states have (on average 14.8125) internal successors, (237), 15 states have internal predecessors, (237), 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 128 [2023-12-25 09:41:31,836 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-25 09:41:32,176 INFO L225 Difference]: With dead ends: 422991 [2023-12-25 09:41:32,176 INFO L226 Difference]: Without dead ends: 229673 [2023-12-25 09:41:32,278 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 264 GetRequests, 240 SyntacticMatches, 0 SemanticMatches, 24 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 93 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=174, Invalid=476, Unknown=0, NotChecked=0, Total=650 [2023-12-25 09:41:32,278 INFO L413 NwaCegarLoop]: 339 mSDtfsCounter, 2476 mSDsluCounter, 1677 mSDsCounter, 0 mSdLazyCounter, 1198 mSolverCounterSat, 8 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.8s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2476 SdHoareTripleChecker+Valid, 2016 SdHoareTripleChecker+Invalid, 1206 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 8 IncrementalHoareTripleChecker+Valid, 1198 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.9s IncrementalHoareTripleChecker+Time [2023-12-25 09:41:32,278 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [2476 Valid, 2016 Invalid, 1206 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [8 Valid, 1198 Invalid, 0 Unknown, 0 Unchecked, 0.9s Time] [2023-12-25 09:41:32,452 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 229673 states. [2023-12-25 09:41:34,443 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 229673 to 227603. [2023-12-25 09:41:34,556 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 227603 states, 227602 states have (on average 1.16721294188979) internal successors, (265660), 227602 states have internal predecessors, (265660), 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) [2023-12-25 09:41:34,869 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 227603 states to 227603 states and 265660 transitions. [2023-12-25 09:41:34,869 INFO L78 Accepts]: Start accepts. Automaton has 227603 states and 265660 transitions. Word has length 128 [2023-12-25 09:41:34,869 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-25 09:41:34,870 INFO L495 AbstractCegarLoop]: Abstraction has 227603 states and 265660 transitions. [2023-12-25 09:41:34,870 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 16 states, 16 states have (on average 14.8125) internal successors, (237), 15 states have internal predecessors, (237), 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) [2023-12-25 09:41:34,870 INFO L276 IsEmpty]: Start isEmpty. Operand 227603 states and 265660 transitions. [2023-12-25 09:41:34,878 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 130 [2023-12-25 09:41:34,878 INFO L187 NwaCegarLoop]: Found error trace [2023-12-25 09:41:34,878 INFO L195 NwaCegarLoop]: trace histogram [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] [2023-12-25 09:41:34,881 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 (58)] Ended with exit code 0 [2023-12-25 09:41:35,078 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 58 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2023-12-25 09:41:35,078 INFO L420 AbstractCegarLoop]: === Iteration 58 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-25 09:41:35,079 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-25 09:41:35,079 INFO L85 PathProgramCache]: Analyzing trace with hash 1312528144, now seen corresponding path program 1 times [2023-12-25 09:41:35,079 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-12-25 09:41:35,079 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1688930457] [2023-12-25 09:41:35,079 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-25 09:41:35,079 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 [2023-12-25 09:41:35,079 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2023-12-25 09:41:35,080 INFO L229 MonitoredProcess]: Starting monitored process 59 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) [2023-12-25 09:41:35,081 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 (59)] Waiting until timeout for monitored process [2023-12-25 09:41:35,226 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-25 09:41:35,229 INFO L262 TraceCheckSpWp]: Trace formula consists of 322 conjuncts, 5 conjunts are in the unsatisfiable core [2023-12-25 09:41:35,231 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-25 09:41:35,660 INFO L134 CoverageAnalysis]: Checked inductivity of 14 backedges. 12 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-12-25 09:41:35,661 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-12-25 09:41:35,707 INFO L134 CoverageAnalysis]: Checked inductivity of 14 backedges. 12 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-12-25 09:41:35,708 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-12-25 09:41:35,708 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1688930457] [2023-12-25 09:41:35,708 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1688930457] provided 0 perfect and 2 imperfect interpolant sequences [2023-12-25 09:41:35,708 INFO L185 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2023-12-25 09:41:35,708 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [5, 5] total 9 [2023-12-25 09:41:35,708 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [602076425] [2023-12-25 09:41:35,708 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2023-12-25 09:41:35,708 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2023-12-25 09:41:35,708 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-12-25 09:41:35,709 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2023-12-25 09:41:35,709 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=21, Invalid=51, Unknown=0, NotChecked=0, Total=72 [2023-12-25 09:41:35,709 INFO L87 Difference]: Start difference. First operand 227603 states and 265660 transitions. Second operand has 9 states, 9 states have (on average 25.666666666666668) internal successors, (231), 9 states have internal predecessors, (231), 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) [2023-12-25 09:41:37,169 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-25 09:41:37,169 INFO L93 Difference]: Finished difference Result 463337 states and 538980 transitions. [2023-12-25 09:41:37,169 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2023-12-25 09:41:37,169 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 9 states have (on average 25.666666666666668) internal successors, (231), 9 states have internal predecessors, (231), 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 129 [2023-12-25 09:41:37,170 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-25 09:41:37,533 INFO L225 Difference]: With dead ends: 463337 [2023-12-25 09:41:37,534 INFO L226 Difference]: Without dead ends: 268094 [2023-12-25 09:41:37,644 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 261 GetRequests, 250 SyntacticMatches, 0 SemanticMatches, 11 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 17 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=54, Invalid=102, Unknown=0, NotChecked=0, Total=156 [2023-12-25 09:41:37,644 INFO L413 NwaCegarLoop]: 239 mSDtfsCounter, 1274 mSDsluCounter, 682 mSDsCounter, 0 mSdLazyCounter, 451 mSolverCounterSat, 43 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1274 SdHoareTripleChecker+Valid, 921 SdHoareTripleChecker+Invalid, 494 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 43 IncrementalHoareTripleChecker+Valid, 451 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2023-12-25 09:41:37,645 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1274 Valid, 921 Invalid, 494 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [43 Valid, 451 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2023-12-25 09:41:37,857 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 268094 states. [2023-12-25 09:41:40,020 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 268094 to 216491. [2023-12-25 09:41:40,173 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 216491 states, 216490 states have (on average 1.1516790613885168) internal successors, (249327), 216490 states have internal predecessors, (249327), 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) [2023-12-25 09:41:40,776 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 216491 states to 216491 states and 249327 transitions. [2023-12-25 09:41:40,776 INFO L78 Accepts]: Start accepts. Automaton has 216491 states and 249327 transitions. Word has length 129 [2023-12-25 09:41:40,776 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-25 09:41:40,777 INFO L495 AbstractCegarLoop]: Abstraction has 216491 states and 249327 transitions. [2023-12-25 09:41:40,777 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 9 states have (on average 25.666666666666668) internal successors, (231), 9 states have internal predecessors, (231), 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) [2023-12-25 09:41:40,777 INFO L276 IsEmpty]: Start isEmpty. Operand 216491 states and 249327 transitions. [2023-12-25 09:41:40,784 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 130 [2023-12-25 09:41:40,784 INFO L187 NwaCegarLoop]: Found error trace [2023-12-25 09:41:40,784 INFO L195 NwaCegarLoop]: trace histogram [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] [2023-12-25 09:41:40,788 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 (59)] Forceful destruction successful, exit code 0 [2023-12-25 09:41:40,985 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 59 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2023-12-25 09:41:40,986 INFO L420 AbstractCegarLoop]: === Iteration 59 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-25 09:41:40,986 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-25 09:41:40,986 INFO L85 PathProgramCache]: Analyzing trace with hash -2089970047, now seen corresponding path program 1 times [2023-12-25 09:41:40,986 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-12-25 09:41:40,986 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1232145025] [2023-12-25 09:41:40,986 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-25 09:41:40,987 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 [2023-12-25 09:41:40,987 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2023-12-25 09:41:40,987 INFO L229 MonitoredProcess]: Starting monitored process 60 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) [2023-12-25 09:41:40,988 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 (60)] Waiting until timeout for monitored process [2023-12-25 09:41:41,141 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-25 09:41:41,145 INFO L262 TraceCheckSpWp]: Trace formula consists of 322 conjuncts, 5 conjunts are in the unsatisfiable core [2023-12-25 09:41:41,146 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-25 09:41:41,332 INFO L134 CoverageAnalysis]: Checked inductivity of 14 backedges. 6 proven. 8 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-12-25 09:41:41,332 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-12-25 09:41:41,392 INFO L134 CoverageAnalysis]: Checked inductivity of 14 backedges. 6 proven. 8 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-12-25 09:41:41,392 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-12-25 09:41:41,392 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1232145025] [2023-12-25 09:41:41,392 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1232145025] provided 0 perfect and 2 imperfect interpolant sequences [2023-12-25 09:41:41,392 INFO L185 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2023-12-25 09:41:41,393 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [5, 5] total 9 [2023-12-25 09:41:41,393 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [777434506] [2023-12-25 09:41:41,393 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2023-12-25 09:41:41,393 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2023-12-25 09:41:41,393 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-12-25 09:41:41,393 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2023-12-25 09:41:41,393 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=21, Invalid=51, Unknown=0, NotChecked=0, Total=72 [2023-12-25 09:41:41,394 INFO L87 Difference]: Start difference. First operand 216491 states and 249327 transitions. Second operand has 9 states, 9 states have (on average 27.444444444444443) internal successors, (247), 9 states have internal predecessors, (247), 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) [2023-12-25 09:41:42,603 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-25 09:41:42,604 INFO L93 Difference]: Finished difference Result 388966 states and 447634 transitions. [2023-12-25 09:41:42,604 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2023-12-25 09:41:42,604 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 9 states have (on average 27.444444444444443) internal successors, (247), 9 states have internal predecessors, (247), 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 129 [2023-12-25 09:41:42,604 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-25 09:41:42,882 INFO L225 Difference]: With dead ends: 388966 [2023-12-25 09:41:42,883 INFO L226 Difference]: Without dead ends: 215216 [2023-12-25 09:41:43,227 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 261 GetRequests, 250 SyntacticMatches, 0 SemanticMatches, 11 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 17 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=54, Invalid=102, Unknown=0, NotChecked=0, Total=156 [2023-12-25 09:41:43,228 INFO L413 NwaCegarLoop]: 267 mSDtfsCounter, 1343 mSDsluCounter, 680 mSDsCounter, 0 mSdLazyCounter, 495 mSolverCounterSat, 63 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1343 SdHoareTripleChecker+Valid, 947 SdHoareTripleChecker+Invalid, 558 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 63 IncrementalHoareTripleChecker+Valid, 495 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2023-12-25 09:41:43,228 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1343 Valid, 947 Invalid, 558 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [63 Valid, 495 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2023-12-25 09:41:43,358 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 215216 states. [2023-12-25 09:41:45,068 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 215216 to 203466. [2023-12-25 09:41:45,184 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 203466 states, 203465 states have (on average 1.1398864669599194) internal successors, (231927), 203465 states have internal predecessors, (231927), 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) [2023-12-25 09:41:45,474 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 203466 states to 203466 states and 231927 transitions. [2023-12-25 09:41:45,474 INFO L78 Accepts]: Start accepts. Automaton has 203466 states and 231927 transitions. Word has length 129 [2023-12-25 09:41:45,474 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-25 09:41:45,474 INFO L495 AbstractCegarLoop]: Abstraction has 203466 states and 231927 transitions. [2023-12-25 09:41:45,475 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 9 states have (on average 27.444444444444443) internal successors, (247), 9 states have internal predecessors, (247), 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) [2023-12-25 09:41:45,475 INFO L276 IsEmpty]: Start isEmpty. Operand 203466 states and 231927 transitions. [2023-12-25 09:41:45,482 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 133 [2023-12-25 09:41:45,483 INFO L187 NwaCegarLoop]: Found error trace [2023-12-25 09:41:45,483 INFO L195 NwaCegarLoop]: trace histogram [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] [2023-12-25 09:41:45,485 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 (60)] Ended with exit code 0 [2023-12-25 09:41:45,683 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 60 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2023-12-25 09:41:45,683 INFO L420 AbstractCegarLoop]: === Iteration 60 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-25 09:41:45,684 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-25 09:41:45,684 INFO L85 PathProgramCache]: Analyzing trace with hash 1398766215, now seen corresponding path program 1 times [2023-12-25 09:41:45,684 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-12-25 09:41:45,684 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1793620367] [2023-12-25 09:41:45,684 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-25 09:41:45,684 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2023-12-25 09:41:45,684 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2023-12-25 09:41:45,686 INFO L229 MonitoredProcess]: Starting monitored process 61 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) [2023-12-25 09:41:45,686 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (61)] Waiting until timeout for monitored process [2023-12-25 09:41:45,822 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-25 09:41:45,825 INFO L262 TraceCheckSpWp]: Trace formula consists of 328 conjuncts, 8 conjunts are in the unsatisfiable core [2023-12-25 09:41:45,827 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-25 09:41:46,396 INFO L134 CoverageAnalysis]: Checked inductivity of 14 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 14 trivial. 0 not checked. [2023-12-25 09:41:46,397 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-12-25 09:41:46,397 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-12-25 09:41:46,397 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1793620367] [2023-12-25 09:41:46,397 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1793620367] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-25 09:41:46,397 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-25 09:41:46,397 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2023-12-25 09:41:46,397 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1842957645] [2023-12-25 09:41:46,397 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-25 09:41:46,397 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2023-12-25 09:41:46,397 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-12-25 09:41:46,398 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2023-12-25 09:41:46,398 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=21, Invalid=51, Unknown=0, NotChecked=0, Total=72 [2023-12-25 09:41:46,398 INFO L87 Difference]: Start difference. First operand 203466 states and 231927 transitions. Second operand has 9 states, 9 states have (on average 13.777777777777779) internal successors, (124), 8 states have internal predecessors, (124), 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) [2023-12-25 09:41:48,141 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-25 09:41:48,142 INFO L93 Difference]: Finished difference Result 230517 states and 262766 transitions. [2023-12-25 09:41:48,142 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2023-12-25 09:41:48,142 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 9 states have (on average 13.777777777777779) internal successors, (124), 8 states have internal predecessors, (124), 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 132 [2023-12-25 09:41:48,142 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-25 09:41:48,384 INFO L225 Difference]: With dead ends: 230517 [2023-12-25 09:41:48,384 INFO L226 Difference]: Without dead ends: 220078 [2023-12-25 09:41:48,416 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 139 GetRequests, 124 SyntacticMatches, 0 SemanticMatches, 15 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 18 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=82, Invalid=190, Unknown=0, NotChecked=0, Total=272 [2023-12-25 09:41:48,416 INFO L413 NwaCegarLoop]: 287 mSDtfsCounter, 1392 mSDsluCounter, 1059 mSDsCounter, 0 mSdLazyCounter, 885 mSolverCounterSat, 5 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.8s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1392 SdHoareTripleChecker+Valid, 1346 SdHoareTripleChecker+Invalid, 890 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 5 IncrementalHoareTripleChecker+Valid, 885 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.9s IncrementalHoareTripleChecker+Time [2023-12-25 09:41:48,417 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1392 Valid, 1346 Invalid, 890 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [5 Valid, 885 Invalid, 0 Unknown, 0 Unchecked, 0.9s Time] [2023-12-25 09:41:48,565 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 220078 states. [2023-12-25 09:41:50,324 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 220078 to 203466. [2023-12-25 09:41:50,467 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 203466 states, 203465 states have (on average 1.1398815521096994) internal successors, (231926), 203465 states have internal predecessors, (231926), 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) [2023-12-25 09:41:51,200 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 203466 states to 203466 states and 231926 transitions. [2023-12-25 09:41:51,201 INFO L78 Accepts]: Start accepts. Automaton has 203466 states and 231926 transitions. Word has length 132 [2023-12-25 09:41:51,201 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-25 09:41:51,201 INFO L495 AbstractCegarLoop]: Abstraction has 203466 states and 231926 transitions. [2023-12-25 09:41:51,201 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 9 states have (on average 13.777777777777779) internal successors, (124), 8 states have internal predecessors, (124), 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) [2023-12-25 09:41:51,201 INFO L276 IsEmpty]: Start isEmpty. Operand 203466 states and 231926 transitions. [2023-12-25 09:41:51,209 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 133 [2023-12-25 09:41:51,209 INFO L187 NwaCegarLoop]: Found error trace [2023-12-25 09:41:51,209 INFO L195 NwaCegarLoop]: trace histogram [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] [2023-12-25 09:41:51,212 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (61)] Forceful destruction successful, exit code 0 [2023-12-25 09:41:51,412 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 61 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2023-12-25 09:41:51,412 INFO L420 AbstractCegarLoop]: === Iteration 61 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-25 09:41:51,413 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-25 09:41:51,413 INFO L85 PathProgramCache]: Analyzing trace with hash 1900169125, now seen corresponding path program 1 times [2023-12-25 09:41:51,413 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-12-25 09:41:51,413 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [802937466] [2023-12-25 09:41:51,413 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-25 09:41:51,413 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 [2023-12-25 09:41:51,413 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2023-12-25 09:41:51,415 INFO L229 MonitoredProcess]: Starting monitored process 62 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) [2023-12-25 09:41:51,448 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 (62)] Waiting until timeout for monitored process [2023-12-25 09:41:51,591 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-25 09:41:51,594 INFO L262 TraceCheckSpWp]: Trace formula consists of 329 conjuncts, 13 conjunts are in the unsatisfiable core [2023-12-25 09:41:51,596 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-25 09:41:52,434 INFO L134 CoverageAnalysis]: Checked inductivity of 14 backedges. 8 proven. 6 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-12-25 09:41:52,434 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-12-25 09:41:52,717 INFO L134 CoverageAnalysis]: Checked inductivity of 14 backedges. 8 proven. 6 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-12-25 09:41:52,717 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-12-25 09:41:52,717 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [802937466] [2023-12-25 09:41:52,717 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [802937466] provided 0 perfect and 2 imperfect interpolant sequences [2023-12-25 09:41:52,717 INFO L185 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2023-12-25 09:41:52,717 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [13, 10] total 21 [2023-12-25 09:41:52,717 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1914005939] [2023-12-25 09:41:52,717 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2023-12-25 09:41:52,718 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 21 states [2023-12-25 09:41:52,718 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-12-25 09:41:52,718 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 21 interpolants. [2023-12-25 09:41:52,718 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=62, Invalid=358, Unknown=0, NotChecked=0, Total=420 [2023-12-25 09:41:52,719 INFO L87 Difference]: Start difference. First operand 203466 states and 231926 transitions. Second operand has 21 states, 21 states have (on average 11.571428571428571) internal successors, (243), 21 states have internal predecessors, (243), 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) [2023-12-25 09:41:57,801 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-25 09:41:57,801 INFO L93 Difference]: Finished difference Result 433818 states and 490852 transitions. [2023-12-25 09:41:57,802 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 50 states. [2023-12-25 09:41:57,802 INFO L78 Accepts]: Start accepts. Automaton has has 21 states, 21 states have (on average 11.571428571428571) internal successors, (243), 21 states have internal predecessors, (243), 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 132 [2023-12-25 09:41:57,803 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-25 09:41:58,427 INFO L225 Difference]: With dead ends: 433818 [2023-12-25 09:41:58,427 INFO L226 Difference]: Without dead ends: 397467 [2023-12-25 09:41:58,521 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 311 GetRequests, 245 SyntacticMatches, 0 SemanticMatches, 66 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 980 ImplicationChecksByTransitivity, 2.9s TimeCoverageRelationStatistics Valid=1098, Invalid=3458, Unknown=0, NotChecked=0, Total=4556 [2023-12-25 09:41:58,522 INFO L413 NwaCegarLoop]: 628 mSDtfsCounter, 3575 mSDsluCounter, 7487 mSDsCounter, 0 mSdLazyCounter, 1232 mSolverCounterSat, 34 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 3575 SdHoareTripleChecker+Valid, 8115 SdHoareTripleChecker+Invalid, 1266 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 34 IncrementalHoareTripleChecker+Valid, 1232 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.2s IncrementalHoareTripleChecker+Time [2023-12-25 09:41:58,522 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [3575 Valid, 8115 Invalid, 1266 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [34 Valid, 1232 Invalid, 0 Unknown, 0 Unchecked, 1.2s Time] [2023-12-25 09:41:58,848 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 397467 states. [2023-12-25 09:42:01,681 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 397467 to 252133. [2023-12-25 09:42:01,805 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 252133 states, 252132 states have (on average 1.1354726889089841) internal successors, (286289), 252132 states have internal predecessors, (286289), 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) [2023-12-25 09:42:02,104 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 252133 states to 252133 states and 286289 transitions. [2023-12-25 09:42:02,105 INFO L78 Accepts]: Start accepts. Automaton has 252133 states and 286289 transitions. Word has length 132 [2023-12-25 09:42:02,105 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-25 09:42:02,105 INFO L495 AbstractCegarLoop]: Abstraction has 252133 states and 286289 transitions. [2023-12-25 09:42:02,105 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 21 states, 21 states have (on average 11.571428571428571) internal successors, (243), 21 states have internal predecessors, (243), 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) [2023-12-25 09:42:02,105 INFO L276 IsEmpty]: Start isEmpty. Operand 252133 states and 286289 transitions. [2023-12-25 09:42:02,114 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 135 [2023-12-25 09:42:02,114 INFO L187 NwaCegarLoop]: Found error trace [2023-12-25 09:42:02,115 INFO L195 NwaCegarLoop]: trace histogram [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] [2023-12-25 09:42:02,119 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 (62)] Forceful destruction successful, exit code 0 [2023-12-25 09:42:02,315 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 62 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2023-12-25 09:42:02,315 INFO L420 AbstractCegarLoop]: === Iteration 62 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-25 09:42:02,315 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-25 09:42:02,316 INFO L85 PathProgramCache]: Analyzing trace with hash -1473840891, now seen corresponding path program 1 times [2023-12-25 09:42:02,316 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-12-25 09:42:02,316 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [2104422409] [2023-12-25 09:42:02,316 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-25 09:42:02,316 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 [2023-12-25 09:42:02,316 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2023-12-25 09:42:02,317 INFO L229 MonitoredProcess]: Starting monitored process 63 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) [2023-12-25 09:42:02,335 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 (63)] Waiting until timeout for monitored process [2023-12-25 09:42:02,462 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-25 09:42:02,465 INFO L262 TraceCheckSpWp]: Trace formula consists of 328 conjuncts, 8 conjunts are in the unsatisfiable core [2023-12-25 09:42:02,467 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-25 09:42:02,993 INFO L134 CoverageAnalysis]: Checked inductivity of 14 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 14 trivial. 0 not checked. [2023-12-25 09:42:02,993 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-12-25 09:42:02,993 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-12-25 09:42:02,993 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [2104422409] [2023-12-25 09:42:02,993 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [2104422409] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-25 09:42:02,994 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-25 09:42:02,994 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2023-12-25 09:42:02,994 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [880825168] [2023-12-25 09:42:02,994 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-25 09:42:02,994 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2023-12-25 09:42:02,994 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-12-25 09:42:02,994 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2023-12-25 09:42:02,994 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=21, Invalid=51, Unknown=0, NotChecked=0, Total=72 [2023-12-25 09:42:02,994 INFO L87 Difference]: Start difference. First operand 252133 states and 286289 transitions. Second operand has 9 states, 9 states have (on average 14.0) internal successors, (126), 8 states have internal predecessors, (126), 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) [2023-12-25 09:42:04,679 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-25 09:42:04,679 INFO L93 Difference]: Finished difference Result 280855 states and 318853 transitions. [2023-12-25 09:42:04,680 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2023-12-25 09:42:04,680 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 9 states have (on average 14.0) internal successors, (126), 8 states have internal predecessors, (126), 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 134 [2023-12-25 09:42:04,680 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-25 09:42:04,959 INFO L225 Difference]: With dead ends: 280855 [2023-12-25 09:42:04,960 INFO L226 Difference]: Without dead ends: 273374 [2023-12-25 09:42:05,001 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 141 GetRequests, 126 SyntacticMatches, 0 SemanticMatches, 15 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 18 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=82, Invalid=190, Unknown=0, NotChecked=0, Total=272 [2023-12-25 09:42:05,001 INFO L413 NwaCegarLoop]: 290 mSDtfsCounter, 989 mSDsluCounter, 1071 mSDsCounter, 0 mSdLazyCounter, 873 mSolverCounterSat, 5 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.8s Time, 0 mProtectedPredicate, 0 mProtectedAction, 989 SdHoareTripleChecker+Valid, 1361 SdHoareTripleChecker+Invalid, 878 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 5 IncrementalHoareTripleChecker+Valid, 873 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.9s IncrementalHoareTripleChecker+Time [2023-12-25 09:42:05,001 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [989 Valid, 1361 Invalid, 878 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [5 Valid, 873 Invalid, 0 Unknown, 0 Unchecked, 0.9s Time] [2023-12-25 09:42:05,188 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 273374 states. [2023-12-25 09:42:07,323 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 273374 to 252133. [2023-12-25 09:42:07,499 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 252133 states, 252132 states have (on average 1.1354687227325369) internal successors, (286288), 252132 states have internal predecessors, (286288), 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) [2023-12-25 09:42:08,155 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 252133 states to 252133 states and 286288 transitions. [2023-12-25 09:42:08,156 INFO L78 Accepts]: Start accepts. Automaton has 252133 states and 286288 transitions. Word has length 134 [2023-12-25 09:42:08,156 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-25 09:42:08,156 INFO L495 AbstractCegarLoop]: Abstraction has 252133 states and 286288 transitions. [2023-12-25 09:42:08,156 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 9 states have (on average 14.0) internal successors, (126), 8 states have internal predecessors, (126), 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) [2023-12-25 09:42:08,156 INFO L276 IsEmpty]: Start isEmpty. Operand 252133 states and 286288 transitions. [2023-12-25 09:42:08,167 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 135 [2023-12-25 09:42:08,167 INFO L187 NwaCegarLoop]: Found error trace [2023-12-25 09:42:08,167 INFO L195 NwaCegarLoop]: trace histogram [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] [2023-12-25 09:42:08,172 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 (63)] Forceful destruction successful, exit code 0 [2023-12-25 09:42:08,367 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 63 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2023-12-25 09:42:08,368 INFO L420 AbstractCegarLoop]: === Iteration 63 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-25 09:42:08,372 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-25 09:42:08,372 INFO L85 PathProgramCache]: Analyzing trace with hash 1814874076, now seen corresponding path program 1 times [2023-12-25 09:42:08,373 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-12-25 09:42:08,373 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [406929951] [2023-12-25 09:42:08,373 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-25 09:42:08,374 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 [2023-12-25 09:42:08,374 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2023-12-25 09:42:08,375 INFO L229 MonitoredProcess]: Starting monitored process 64 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) [2023-12-25 09:42:08,392 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 (64)] Waiting until timeout for monitored process [2023-12-25 09:42:08,539 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-25 09:42:08,552 INFO L262 TraceCheckSpWp]: Trace formula consists of 330 conjuncts, 9 conjunts are in the unsatisfiable core [2023-12-25 09:42:08,554 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-25 09:42:09,246 INFO L134 CoverageAnalysis]: Checked inductivity of 14 backedges. 8 proven. 0 refuted. 0 times theorem prover too weak. 6 trivial. 0 not checked. [2023-12-25 09:42:09,246 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-12-25 09:42:09,246 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-12-25 09:42:09,246 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [406929951] [2023-12-25 09:42:09,246 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [406929951] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-25 09:42:09,246 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-25 09:42:09,246 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2023-12-25 09:42:09,246 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [214412913] [2023-12-25 09:42:09,246 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-25 09:42:09,247 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2023-12-25 09:42:09,247 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-12-25 09:42:09,247 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2023-12-25 09:42:09,247 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=21, Invalid=51, Unknown=0, NotChecked=0, Total=72 [2023-12-25 09:42:09,247 INFO L87 Difference]: Start difference. First operand 252133 states and 286288 transitions. Second operand has 9 states, 9 states have (on average 14.444444444444445) internal successors, (130), 8 states have internal predecessors, (130), 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) [2023-12-25 09:42:11,363 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-25 09:42:11,364 INFO L93 Difference]: Finished difference Result 482208 states and 547973 transitions. [2023-12-25 09:42:11,364 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2023-12-25 09:42:11,364 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 9 states have (on average 14.444444444444445) internal successors, (130), 8 states have internal predecessors, (130), 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 134 [2023-12-25 09:42:11,364 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-25 09:42:12,061 INFO L225 Difference]: With dead ends: 482208 [2023-12-25 09:42:12,061 INFO L226 Difference]: Without dead ends: 336113 [2023-12-25 09:42:12,139 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 141 GetRequests, 126 SyntacticMatches, 0 SemanticMatches, 15 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 20 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=80, Invalid=192, Unknown=0, NotChecked=0, Total=272 [2023-12-25 09:42:12,139 INFO L413 NwaCegarLoop]: 276 mSDtfsCounter, 1207 mSDsluCounter, 1070 mSDsCounter, 0 mSdLazyCounter, 858 mSolverCounterSat, 17 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.8s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1207 SdHoareTripleChecker+Valid, 1346 SdHoareTripleChecker+Invalid, 875 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 17 IncrementalHoareTripleChecker+Valid, 858 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.9s IncrementalHoareTripleChecker+Time [2023-12-25 09:42:12,139 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1207 Valid, 1346 Invalid, 875 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [17 Valid, 858 Invalid, 0 Unknown, 0 Unchecked, 0.9s Time] [2023-12-25 09:42:12,324 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 336113 states. [2023-12-25 09:42:14,596 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 336113 to 242570. [2023-12-25 09:42:14,734 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 242570 states, 242569 states have (on average 1.1359242112553543) internal successors, (275540), 242569 states have internal predecessors, (275540), 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) [2023-12-25 09:42:15,357 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 242570 states to 242570 states and 275540 transitions. [2023-12-25 09:42:15,358 INFO L78 Accepts]: Start accepts. Automaton has 242570 states and 275540 transitions. Word has length 134 [2023-12-25 09:42:15,358 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-25 09:42:15,358 INFO L495 AbstractCegarLoop]: Abstraction has 242570 states and 275540 transitions. [2023-12-25 09:42:15,358 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 9 states have (on average 14.444444444444445) internal successors, (130), 8 states have internal predecessors, (130), 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) [2023-12-25 09:42:15,358 INFO L276 IsEmpty]: Start isEmpty. Operand 242570 states and 275540 transitions. [2023-12-25 09:42:15,366 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 135 [2023-12-25 09:42:15,366 INFO L187 NwaCegarLoop]: Found error trace [2023-12-25 09:42:15,366 INFO L195 NwaCegarLoop]: trace histogram [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] [2023-12-25 09:42:15,369 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 (64)] Forceful destruction successful, exit code 0 [2023-12-25 09:42:15,569 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 64 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2023-12-25 09:42:15,570 INFO L420 AbstractCegarLoop]: === Iteration 64 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-25 09:42:15,570 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-25 09:42:15,570 INFO L85 PathProgramCache]: Analyzing trace with hash -1401182143, now seen corresponding path program 1 times [2023-12-25 09:42:15,570 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-12-25 09:42:15,570 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [766989763] [2023-12-25 09:42:15,571 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-25 09:42:15,571 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 [2023-12-25 09:42:15,571 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2023-12-25 09:42:15,572 INFO L229 MonitoredProcess]: Starting monitored process 65 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) [2023-12-25 09:42:15,572 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 (65)] Waiting until timeout for monitored process [2023-12-25 09:42:15,725 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-25 09:42:15,728 INFO L262 TraceCheckSpWp]: Trace formula consists of 331 conjuncts, 25 conjunts are in the unsatisfiable core [2023-12-25 09:42:15,730 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-25 09:42:17,259 INFO L134 CoverageAnalysis]: Checked inductivity of 14 backedges. 12 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-12-25 09:42:17,259 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-12-25 09:42:17,964 INFO L134 CoverageAnalysis]: Checked inductivity of 14 backedges. 8 proven. 6 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-12-25 09:42:17,964 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-12-25 09:42:17,965 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [766989763] [2023-12-25 09:42:17,965 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [766989763] provided 0 perfect and 2 imperfect interpolant sequences [2023-12-25 09:42:17,965 INFO L185 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2023-12-25 09:42:17,965 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [21, 20] total 39 [2023-12-25 09:42:17,965 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [364988986] [2023-12-25 09:42:17,965 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2023-12-25 09:42:17,965 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 39 states [2023-12-25 09:42:17,965 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-12-25 09:42:17,969 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 39 interpolants. [2023-12-25 09:42:17,970 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=159, Invalid=1323, Unknown=0, NotChecked=0, Total=1482 [2023-12-25 09:42:17,970 INFO L87 Difference]: Start difference. First operand 242570 states and 275540 transitions. Second operand has 39 states, 39 states have (on average 6.461538461538462) internal successors, (252), 39 states have internal predecessors, (252), 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)