/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/eca-rers2012/Problem03_label32.c -------------------------------------------------------------------------------- This is Ultimate 0.2.4-tmp.fs.bitabs-eval-d9c3e40-m [2023-12-16 08:28:00,629 INFO L188 SettingsManager]: Resetting all preferences to default values... [2023-12-16 08:28:00,703 INFO L114 SettingsManager]: Loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/settings/default/automizer/svcomp-Reach-32bit-Automizer_Bitvector.epf [2023-12-16 08:28:00,708 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2023-12-16 08:28:00,708 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2023-12-16 08:28:00,732 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2023-12-16 08:28:00,732 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2023-12-16 08:28:00,732 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2023-12-16 08:28:00,733 INFO L151 SettingsManager]: Preferences of Boogie Preprocessor differ from their defaults: [2023-12-16 08:28:00,735 INFO L153 SettingsManager]: * Use memory slicer=true [2023-12-16 08:28:00,736 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2023-12-16 08:28:00,736 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2023-12-16 08:28:00,736 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2023-12-16 08:28:00,737 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2023-12-16 08:28:00,737 INFO L153 SettingsManager]: * Use SBE=true [2023-12-16 08:28:00,738 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2023-12-16 08:28:00,738 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2023-12-16 08:28:00,738 INFO L153 SettingsManager]: * sizeof long=4 [2023-12-16 08:28:00,738 INFO L153 SettingsManager]: * sizeof POINTER=4 [2023-12-16 08:28:00,738 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2023-12-16 08:28:00,739 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2023-12-16 08:28:00,739 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2023-12-16 08:28:00,739 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2023-12-16 08:28:00,739 INFO L153 SettingsManager]: * Adapt memory model on pointer casts if necessary=true [2023-12-16 08:28:00,739 INFO L153 SettingsManager]: * Use bitvectors instead of ints=true [2023-12-16 08:28:00,739 INFO L153 SettingsManager]: * Allow undefined functions=false [2023-12-16 08:28:00,740 INFO L153 SettingsManager]: * Memory model=HoenickeLindenmann_4ByteResolution [2023-12-16 08:28:00,740 INFO L153 SettingsManager]: * sizeof long double=12 [2023-12-16 08:28:00,740 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2023-12-16 08:28:00,740 INFO L153 SettingsManager]: * Use constant arrays=true [2023-12-16 08:28:00,741 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2023-12-16 08:28:00,741 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2023-12-16 08:28:00,741 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2023-12-16 08:28:00,741 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2023-12-16 08:28:00,741 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2023-12-16 08:28:00,741 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2023-12-16 08:28:00,742 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2023-12-16 08:28:00,742 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2023-12-16 08:28:00,742 INFO L153 SettingsManager]: * Trace refinement strategy=WOLF [2023-12-16 08:28:00,742 INFO L153 SettingsManager]: * Command for external solver=cvc4 --incremental --print-success --lang smt [2023-12-16 08:28:00,742 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2023-12-16 08:28:00,742 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2023-12-16 08:28:00,742 INFO L153 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2023-12-16 08:28:00,743 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2023-12-16 08:28:00,743 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2023-12-16 08:28:00,743 INFO L153 SettingsManager]: * Logic for external solver=AUFBV [2023-12-16 08:28:00,743 INFO L153 SettingsManager]: * Looper check in Petri net analysis=SEMANTIC WARNING: An illegal reflective access operation has occurred WARNING: Illegal reflective access by com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 (file:/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/plugins/com.sun.xml.bind_2.2.0.v201505121915.jar) to method java.lang.ClassLoader.defineClass(java.lang.String,byte[],int,int) WARNING: Please consider reporting this to the maintainers of com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release [2023-12-16 08:28:00,932 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2023-12-16 08:28:00,953 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2023-12-16 08:28:00,955 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2023-12-16 08:28:00,956 INFO L270 PluginConnector]: Initializing CDTParser... [2023-12-16 08:28:00,956 INFO L274 PluginConnector]: CDTParser initialized [2023-12-16 08:28:00,957 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/eca-rers2012/Problem03_label32.c [2023-12-16 08:28:01,984 INFO L533 CDTParser]: Created temporary CDT project at NULL [2023-12-16 08:28:02,239 INFO L384 CDTParser]: Found 1 translation units. [2023-12-16 08:28:02,239 INFO L180 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/eca-rers2012/Problem03_label32.c [2023-12-16 08:28:02,256 INFO L427 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/4b6949cd1/823d6094b2e447dca88136bb7e2dcab4/FLAGb16d0e1ef [2023-12-16 08:28:02,269 INFO L435 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/4b6949cd1/823d6094b2e447dca88136bb7e2dcab4 [2023-12-16 08:28:02,271 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2023-12-16 08:28:02,273 INFO L133 ToolchainWalker]: Walking toolchain with 5 elements. [2023-12-16 08:28:02,275 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2023-12-16 08:28:02,275 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2023-12-16 08:28:02,278 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2023-12-16 08:28:02,278 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 16.12 08:28:02" (1/1) ... [2023-12-16 08:28:02,279 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@58576c8c and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.12 08:28:02, skipping insertion in model container [2023-12-16 08:28:02,279 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 16.12 08:28:02" (1/1) ... [2023-12-16 08:28:02,335 INFO L177 MainTranslator]: Built tables and reachable declarations [2023-12-16 08:28:02,753 WARN L239 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/trunk/examples/svcomp/eca-rers2012/Problem03_label32.c[59744,59757] [2023-12-16 08:28:02,780 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-12-16 08:28:02,797 INFO L202 MainTranslator]: Completed pre-run [2023-12-16 08:28:02,922 WARN L239 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/trunk/examples/svcomp/eca-rers2012/Problem03_label32.c[59744,59757] [2023-12-16 08:28:02,930 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-12-16 08:28:02,944 INFO L206 MainTranslator]: Completed translation [2023-12-16 08:28:02,945 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.12 08:28:02 WrapperNode [2023-12-16 08:28:02,945 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2023-12-16 08:28:02,946 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2023-12-16 08:28:02,946 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2023-12-16 08:28:02,946 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2023-12-16 08:28:02,951 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.12 08:28:02" (1/1) ... [2023-12-16 08:28:02,977 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.12 08:28:02" (1/1) ... [2023-12-16 08:28:03,047 INFO L138 Inliner]: procedures = 14, calls = 8, calls flagged for inlining = 3, calls inlined = 3, statements flattened = 1770 [2023-12-16 08:28:03,048 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2023-12-16 08:28:03,048 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2023-12-16 08:28:03,048 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2023-12-16 08:28:03,049 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2023-12-16 08:28:03,056 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.12 08:28:02" (1/1) ... [2023-12-16 08:28:03,056 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.12 08:28:02" (1/1) ... [2023-12-16 08:28:03,067 INFO L184 PluginConnector]: Executing the observer MemorySlicer from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.12 08:28:02" (1/1) ... [2023-12-16 08:28:03,102 INFO L175 MemorySlicer]: Split 2 memory accesses to 1 slices as follows [2]. 100 percent of accesses are in the largest equivalence class. The 2 initializations are split as follows [2]. The 0 writes are split as follows [0]. [2023-12-16 08:28:03,103 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.12 08:28:02" (1/1) ... [2023-12-16 08:28:03,103 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.12 08:28:02" (1/1) ... [2023-12-16 08:28:03,131 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.12 08:28:02" (1/1) ... [2023-12-16 08:28:03,137 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.12 08:28:02" (1/1) ... [2023-12-16 08:28:03,144 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.12 08:28:02" (1/1) ... [2023-12-16 08:28:03,152 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.12 08:28:02" (1/1) ... [2023-12-16 08:28:03,166 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2023-12-16 08:28:03,167 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2023-12-16 08:28:03,167 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2023-12-16 08:28:03,167 INFO L274 PluginConnector]: RCFGBuilder initialized [2023-12-16 08:28:03,167 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.12 08:28:02" (1/1) ... [2023-12-16 08:28:03,171 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2023-12-16 08:28:03,182 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-12-16 08:28:03,192 INFO L229 MonitoredProcess]: Starting monitored process 1 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (exit command is (exit), workingDir is null) [2023-12-16 08:28:03,212 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (1)] Waiting until timeout for monitored process [2023-12-16 08:28:03,218 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2023-12-16 08:28:03,218 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE1#0 [2023-12-16 08:28:03,219 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2023-12-16 08:28:03,220 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2023-12-16 08:28:03,302 INFO L241 CfgBuilder]: Building ICFG [2023-12-16 08:28:03,304 INFO L267 CfgBuilder]: Building CFG for each procedure with an implementation [2023-12-16 08:28:04,874 INFO L282 CfgBuilder]: Performing block encoding [2023-12-16 08:28:04,912 INFO L304 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2023-12-16 08:28:04,913 INFO L309 CfgBuilder]: Removed 1 assume(true) statements. [2023-12-16 08:28:04,913 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 16.12 08:28:04 BoogieIcfgContainer [2023-12-16 08:28:04,913 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2023-12-16 08:28:04,914 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2023-12-16 08:28:04,914 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2023-12-16 08:28:04,916 INFO L274 PluginConnector]: TraceAbstraction initialized [2023-12-16 08:28:04,917 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 16.12 08:28:02" (1/3) ... [2023-12-16 08:28:04,917 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@1a998acd and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 16.12 08:28:04, skipping insertion in model container [2023-12-16 08:28:04,917 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.12 08:28:02" (2/3) ... [2023-12-16 08:28:04,917 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@1a998acd and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 16.12 08:28:04, skipping insertion in model container [2023-12-16 08:28:04,917 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 16.12 08:28:04" (3/3) ... [2023-12-16 08:28:04,918 INFO L112 eAbstractionObserver]: Analyzing ICFG Problem03_label32.c [2023-12-16 08:28:04,929 INFO L204 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2023-12-16 08:28:04,930 INFO L163 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2023-12-16 08:28:04,960 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2023-12-16 08:28:04,964 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;@637e9b96, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2023-12-16 08:28:04,964 INFO L358 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2023-12-16 08:28:04,969 INFO L276 IsEmpty]: Start isEmpty. Operand has 240 states, 238 states have (on average 1.9201680672268908) internal successors, (457), 239 states have internal predecessors, (457), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-16 08:28:04,978 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 189 [2023-12-16 08:28:04,978 INFO L187 NwaCegarLoop]: Found error trace [2023-12-16 08:28:04,979 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-16 08:28:04,979 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-16 08:28:04,983 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-16 08:28:04,983 INFO L85 PathProgramCache]: Analyzing trace with hash 1977666363, now seen corresponding path program 1 times [2023-12-16 08:28:05,003 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-12-16 08:28:05,004 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1796859640] [2023-12-16 08:28:05,004 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-16 08:28:05,004 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2023-12-16 08:28:05,004 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2023-12-16 08:28:05,006 INFO L229 MonitoredProcess]: Starting monitored process 2 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2023-12-16 08:28:05,021 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (2)] Waiting until timeout for monitored process [2023-12-16 08:28:05,160 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 08:28:05,163 INFO L262 TraceCheckSpWp]: Trace formula consists of 251 conjuncts, 1 conjunts are in the unsatisfiable core [2023-12-16 08:28:05,171 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-16 08:28:05,212 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-12-16 08:28:05,212 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-12-16 08:28:05,213 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-12-16 08:28:05,213 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1796859640] [2023-12-16 08:28:05,213 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1796859640] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-16 08:28:05,213 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-16 08:28:05,214 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2023-12-16 08:28:05,215 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1431203836] [2023-12-16 08:28:05,215 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-16 08:28:05,221 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2023-12-16 08:28:05,221 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-12-16 08:28:05,248 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2023-12-16 08:28:05,249 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2023-12-16 08:28:05,251 INFO L87 Difference]: Start difference. First operand has 240 states, 238 states have (on average 1.9201680672268908) internal successors, (457), 239 states have internal predecessors, (457), 0 states have call successors, (0), 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 2 states, 2 states have (on average 94.0) internal successors, (188), 2 states have internal predecessors, (188), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-16 08:28:05,298 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-16 08:28:05,298 INFO L93 Difference]: Finished difference Result 479 states and 913 transitions. [2023-12-16 08:28:05,313 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2023-12-16 08:28:05,314 INFO L78 Accepts]: Start accepts. Automaton has has 2 states, 2 states have (on average 94.0) internal successors, (188), 2 states have internal predecessors, (188), 0 states have call successors, (0), 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 188 [2023-12-16 08:28:05,315 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-16 08:28:05,321 INFO L225 Difference]: With dead ends: 479 [2023-12-16 08:28:05,322 INFO L226 Difference]: Without dead ends: 238 [2023-12-16 08:28:05,324 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 187 GetRequests, 187 SyntacticMatches, 0 SemanticMatches, 0 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2023-12-16 08:28:05,327 INFO L413 NwaCegarLoop]: 392 mSDtfsCounter, 0 mSDsluCounter, 0 mSDsCounter, 0 mSdLazyCounter, 2 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 392 SdHoareTripleChecker+Invalid, 2 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 2 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2023-12-16 08:28:05,327 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 392 Invalid, 2 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 2 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2023-12-16 08:28:05,341 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 238 states. [2023-12-16 08:28:05,383 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 238 to 238. [2023-12-16 08:28:05,384 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 238 states, 237 states have (on average 1.6540084388185654) internal successors, (392), 237 states have internal predecessors, (392), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-16 08:28:05,385 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 238 states to 238 states and 392 transitions. [2023-12-16 08:28:05,386 INFO L78 Accepts]: Start accepts. Automaton has 238 states and 392 transitions. Word has length 188 [2023-12-16 08:28:05,387 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-16 08:28:05,387 INFO L495 AbstractCegarLoop]: Abstraction has 238 states and 392 transitions. [2023-12-16 08:28:05,387 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 2 states, 2 states have (on average 94.0) internal successors, (188), 2 states have internal predecessors, (188), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-16 08:28:05,387 INFO L276 IsEmpty]: Start isEmpty. Operand 238 states and 392 transitions. [2023-12-16 08:28:05,389 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 189 [2023-12-16 08:28:05,389 INFO L187 NwaCegarLoop]: Found error trace [2023-12-16 08:28:05,389 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-16 08:28:05,396 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 [2023-12-16 08:28:05,590 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2023-12-16 08:28:05,590 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-16 08:28:05,591 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-16 08:28:05,591 INFO L85 PathProgramCache]: Analyzing trace with hash -439921459, now seen corresponding path program 1 times [2023-12-16 08:28:05,592 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-12-16 08:28:05,593 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1375207814] [2023-12-16 08:28:05,593 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-16 08:28:05,593 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2023-12-16 08:28:05,593 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2023-12-16 08:28:05,594 INFO L229 MonitoredProcess]: Starting monitored process 3 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2023-12-16 08:28:05,596 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (3)] Waiting until timeout for monitored process [2023-12-16 08:28:05,746 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 08:28:05,748 INFO L262 TraceCheckSpWp]: Trace formula consists of 251 conjuncts, 33 conjunts are in the unsatisfiable core [2023-12-16 08:28:05,762 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-16 08:28:17,128 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-12-16 08:28:17,129 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-12-16 08:28:17,129 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-12-16 08:28:17,129 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1375207814] [2023-12-16 08:28:17,129 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1375207814] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-16 08:28:17,129 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-16 08:28:17,129 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2023-12-16 08:28:17,129 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [572273686] [2023-12-16 08:28:17,130 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-16 08:28:17,131 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2023-12-16 08:28:17,131 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-12-16 08:28:17,131 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2023-12-16 08:28:17,131 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=17, Invalid=55, Unknown=0, NotChecked=0, Total=72 [2023-12-16 08:28:17,132 INFO L87 Difference]: Start difference. First operand 238 states and 392 transitions. Second operand has 9 states, 9 states have (on average 20.88888888888889) internal successors, (188), 8 states have internal predecessors, (188), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-16 08:28:20,319 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-16 08:28:20,319 INFO L93 Difference]: Finished difference Result 588 states and 1007 transitions. [2023-12-16 08:28:20,320 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2023-12-16 08:28:20,320 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 9 states have (on average 20.88888888888889) internal successors, (188), 8 states have internal predecessors, (188), 0 states have call successors, (0), 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 188 [2023-12-16 08:28:20,320 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-16 08:28:20,322 INFO L225 Difference]: With dead ends: 588 [2023-12-16 08:28:20,322 INFO L226 Difference]: Without dead ends: 351 [2023-12-16 08:28:20,323 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 192 GetRequests, 180 SyntacticMatches, 0 SemanticMatches, 12 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 8 ImplicationChecksByTransitivity, 1.1s TimeCoverageRelationStatistics Valid=62, Invalid=120, Unknown=0, NotChecked=0, Total=182 [2023-12-16 08:28:20,324 INFO L413 NwaCegarLoop]: 274 mSDtfsCounter, 406 mSDsluCounter, 117 mSDsCounter, 0 mSdLazyCounter, 2354 mSolverCounterSat, 104 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 406 SdHoareTripleChecker+Valid, 391 SdHoareTripleChecker+Invalid, 2458 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 104 IncrementalHoareTripleChecker+Valid, 2354 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.6s IncrementalHoareTripleChecker+Time [2023-12-16 08:28:20,324 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [406 Valid, 391 Invalid, 2458 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [104 Valid, 2354 Invalid, 0 Unknown, 0 Unchecked, 2.6s Time] [2023-12-16 08:28:20,325 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 351 states. [2023-12-16 08:28:20,334 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 351 to 351. [2023-12-16 08:28:20,334 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 351 states, 350 states have (on average 1.46) internal successors, (511), 350 states have internal predecessors, (511), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-16 08:28:20,335 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 351 states to 351 states and 511 transitions. [2023-12-16 08:28:20,335 INFO L78 Accepts]: Start accepts. Automaton has 351 states and 511 transitions. Word has length 188 [2023-12-16 08:28:20,336 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-16 08:28:20,336 INFO L495 AbstractCegarLoop]: Abstraction has 351 states and 511 transitions. [2023-12-16 08:28:20,336 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 9 states have (on average 20.88888888888889) internal successors, (188), 8 states have internal predecessors, (188), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-16 08:28:20,336 INFO L276 IsEmpty]: Start isEmpty. Operand 351 states and 511 transitions. [2023-12-16 08:28:20,338 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 196 [2023-12-16 08:28:20,338 INFO L187 NwaCegarLoop]: Found error trace [2023-12-16 08:28:20,339 INFO L195 NwaCegarLoop]: trace histogram [2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-16 08:28:20,351 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 (3)] Ended with exit code 0 [2023-12-16 08:28:20,554 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 3 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2023-12-16 08:28:20,555 INFO L420 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-16 08:28:20,556 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-16 08:28:20,556 INFO L85 PathProgramCache]: Analyzing trace with hash -1471034242, now seen corresponding path program 1 times [2023-12-16 08:28:20,558 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-12-16 08:28:20,558 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1439666884] [2023-12-16 08:28:20,558 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-16 08:28:20,558 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 [2023-12-16 08:28:20,558 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2023-12-16 08:28:20,559 INFO L229 MonitoredProcess]: Starting monitored process 4 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2023-12-16 08:28:20,577 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (4)] Waiting until timeout for monitored process [2023-12-16 08:28:20,681 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 08:28:20,683 INFO L262 TraceCheckSpWp]: Trace formula consists of 275 conjuncts, 31 conjunts are in the unsatisfiable core [2023-12-16 08:28:20,691 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-16 08:28:40,398 INFO L134 CoverageAnalysis]: Checked inductivity of 6 backedges. 6 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-12-16 08:28:40,398 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-12-16 08:28:40,398 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-12-16 08:28:40,399 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1439666884] [2023-12-16 08:28:40,399 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1439666884] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-16 08:28:40,399 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-16 08:28:40,399 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [10] imperfect sequences [] total 10 [2023-12-16 08:28:40,399 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [984668355] [2023-12-16 08:28:40,399 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-16 08:28:40,400 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 11 states [2023-12-16 08:28:40,400 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-12-16 08:28:40,401 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2023-12-16 08:28:40,401 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=29, Invalid=81, Unknown=0, NotChecked=0, Total=110 [2023-12-16 08:28:40,402 INFO L87 Difference]: Start difference. First operand 351 states and 511 transitions. Second operand has 11 states, 11 states have (on average 17.727272727272727) internal successors, (195), 10 states have internal predecessors, (195), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-16 08:28:45,301 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-16 08:28:45,302 INFO L93 Difference]: Finished difference Result 1141 states and 1873 transitions. [2023-12-16 08:28:45,302 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2023-12-16 08:28:45,302 INFO L78 Accepts]: Start accepts. Automaton has has 11 states, 11 states have (on average 17.727272727272727) internal successors, (195), 10 states have internal predecessors, (195), 0 states have call successors, (0), 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 195 [2023-12-16 08:28:45,303 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-16 08:28:45,306 INFO L225 Difference]: With dead ends: 1141 [2023-12-16 08:28:45,306 INFO L226 Difference]: Without dead ends: 904 [2023-12-16 08:28:45,307 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 199 GetRequests, 185 SyntacticMatches, 0 SemanticMatches, 14 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 24 ImplicationChecksByTransitivity, 1.1s TimeCoverageRelationStatistics Valid=79, Invalid=161, Unknown=0, NotChecked=0, Total=240 [2023-12-16 08:28:45,308 INFO L413 NwaCegarLoop]: 61 mSDtfsCounter, 1052 mSDsluCounter, 133 mSDsCounter, 0 mSdLazyCounter, 4014 mSolverCounterSat, 347 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 3.8s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1052 SdHoareTripleChecker+Valid, 194 SdHoareTripleChecker+Invalid, 4361 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 347 IncrementalHoareTripleChecker+Valid, 4014 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 4.3s IncrementalHoareTripleChecker+Time [2023-12-16 08:28:45,308 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1052 Valid, 194 Invalid, 4361 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [347 Valid, 4014 Invalid, 0 Unknown, 0 Unchecked, 4.3s Time] [2023-12-16 08:28:45,309 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 904 states. [2023-12-16 08:28:45,331 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 904 to 903. [2023-12-16 08:28:45,332 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 903 states, 902 states have (on average 1.3381374722838137) internal successors, (1207), 902 states have internal predecessors, (1207), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-16 08:28:45,337 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 903 states to 903 states and 1207 transitions. [2023-12-16 08:28:45,338 INFO L78 Accepts]: Start accepts. Automaton has 903 states and 1207 transitions. Word has length 195 [2023-12-16 08:28:45,338 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-16 08:28:45,338 INFO L495 AbstractCegarLoop]: Abstraction has 903 states and 1207 transitions. [2023-12-16 08:28:45,338 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 11 states, 11 states have (on average 17.727272727272727) internal successors, (195), 10 states have internal predecessors, (195), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-16 08:28:45,338 INFO L276 IsEmpty]: Start isEmpty. Operand 903 states and 1207 transitions. [2023-12-16 08:28:45,342 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 216 [2023-12-16 08:28:45,342 INFO L187 NwaCegarLoop]: Found error trace [2023-12-16 08:28:45,342 INFO L195 NwaCegarLoop]: trace histogram [4, 4, 4, 4, 4, 3, 3, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-16 08:28:45,350 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 (4)] Forceful destruction successful, exit code 0 [2023-12-16 08:28:45,542 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 4 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2023-12-16 08:28:45,543 INFO L420 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-16 08:28:45,543 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-16 08:28:45,544 INFO L85 PathProgramCache]: Analyzing trace with hash -1127606198, now seen corresponding path program 1 times [2023-12-16 08:28:45,545 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-12-16 08:28:45,545 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1992775156] [2023-12-16 08:28:45,545 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-16 08:28:45,545 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2023-12-16 08:28:45,545 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2023-12-16 08:28:45,546 INFO L229 MonitoredProcess]: Starting monitored process 5 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2023-12-16 08:28:45,547 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (5)] Waiting until timeout for monitored process [2023-12-16 08:28:45,651 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 08:28:45,653 INFO L262 TraceCheckSpWp]: Trace formula consists of 342 conjuncts, 4 conjunts are in the unsatisfiable core [2023-12-16 08:28:45,656 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-16 08:28:45,762 INFO L134 CoverageAnalysis]: Checked inductivity of 46 backedges. 38 proven. 0 refuted. 0 times theorem prover too weak. 8 trivial. 0 not checked. [2023-12-16 08:28:45,763 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-12-16 08:28:45,763 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-12-16 08:28:45,763 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1992775156] [2023-12-16 08:28:45,763 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1992775156] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-16 08:28:45,763 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-16 08:28:45,763 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2023-12-16 08:28:45,763 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1849920313] [2023-12-16 08:28:45,763 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-16 08:28:45,764 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2023-12-16 08:28:45,764 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-12-16 08:28:45,764 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2023-12-16 08:28:45,765 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2023-12-16 08:28:45,765 INFO L87 Difference]: Start difference. First operand 903 states and 1207 transitions. Second operand has 4 states, 4 states have (on average 52.0) internal successors, (208), 3 states have internal predecessors, (208), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-16 08:28:47,297 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-16 08:28:47,297 INFO L93 Difference]: Finished difference Result 2193 states and 3313 transitions. [2023-12-16 08:28:47,298 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2023-12-16 08:28:47,298 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 52.0) internal successors, (208), 3 states have internal predecessors, (208), 0 states have call successors, (0), 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 215 [2023-12-16 08:28:47,298 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-16 08:28:47,303 INFO L225 Difference]: With dead ends: 2193 [2023-12-16 08:28:47,303 INFO L226 Difference]: Without dead ends: 1749 [2023-12-16 08:28:47,304 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 214 GetRequests, 212 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2023-12-16 08:28:47,305 INFO L413 NwaCegarLoop]: 71 mSDtfsCounter, 900 mSDsluCounter, 43 mSDsCounter, 0 mSdLazyCounter, 960 mSolverCounterSat, 187 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 900 SdHoareTripleChecker+Valid, 114 SdHoareTripleChecker+Invalid, 1147 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 187 IncrementalHoareTripleChecker+Valid, 960 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.5s IncrementalHoareTripleChecker+Time [2023-12-16 08:28:47,305 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [900 Valid, 114 Invalid, 1147 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [187 Valid, 960 Invalid, 0 Unknown, 0 Unchecked, 1.5s Time] [2023-12-16 08:28:47,307 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1749 states. [2023-12-16 08:28:47,331 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1749 to 1744. [2023-12-16 08:28:47,333 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1744 states, 1743 states have (on average 1.4417670682730923) internal successors, (2513), 1743 states have internal predecessors, (2513), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-16 08:28:47,337 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1744 states to 1744 states and 2513 transitions. [2023-12-16 08:28:47,337 INFO L78 Accepts]: Start accepts. Automaton has 1744 states and 2513 transitions. Word has length 215 [2023-12-16 08:28:47,337 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-16 08:28:47,337 INFO L495 AbstractCegarLoop]: Abstraction has 1744 states and 2513 transitions. [2023-12-16 08:28:47,338 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 52.0) internal successors, (208), 3 states have internal predecessors, (208), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-16 08:28:47,338 INFO L276 IsEmpty]: Start isEmpty. Operand 1744 states and 2513 transitions. [2023-12-16 08:28:47,340 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 223 [2023-12-16 08:28:47,340 INFO L187 NwaCegarLoop]: Found error trace [2023-12-16 08:28:47,340 INFO L195 NwaCegarLoop]: trace histogram [4, 4, 4, 4, 4, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-16 08:28:47,346 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (5)] Forceful destruction successful, exit code 0 [2023-12-16 08:28:47,546 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 5 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2023-12-16 08:28:47,546 INFO L420 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-16 08:28:47,546 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-16 08:28:47,546 INFO L85 PathProgramCache]: Analyzing trace with hash 1999579082, now seen corresponding path program 1 times [2023-12-16 08:28:47,548 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-12-16 08:28:47,548 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1284850120] [2023-12-16 08:28:47,548 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-16 08:28:47,548 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 [2023-12-16 08:28:47,549 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2023-12-16 08:28:47,550 INFO L229 MonitoredProcess]: Starting monitored process 6 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2023-12-16 08:28:47,556 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (6)] Waiting until timeout for monitored process [2023-12-16 08:28:47,658 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 08:28:47,660 INFO L262 TraceCheckSpWp]: Trace formula consists of 348 conjuncts, 2 conjunts are in the unsatisfiable core [2023-12-16 08:28:47,662 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-16 08:28:47,827 INFO L134 CoverageAnalysis]: Checked inductivity of 53 backedges. 33 proven. 0 refuted. 0 times theorem prover too weak. 20 trivial. 0 not checked. [2023-12-16 08:28:47,827 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-12-16 08:28:47,827 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-12-16 08:28:47,827 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1284850120] [2023-12-16 08:28:47,827 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1284850120] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-16 08:28:47,827 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-16 08:28:47,827 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2023-12-16 08:28:47,828 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1112230139] [2023-12-16 08:28:47,828 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-16 08:28:47,828 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-12-16 08:28:47,828 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-12-16 08:28:47,829 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-12-16 08:28:47,829 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-12-16 08:28:47,829 INFO L87 Difference]: Start difference. First operand 1744 states and 2513 transitions. Second operand has 3 states, 3 states have (on average 70.0) internal successors, (210), 3 states have internal predecessors, (210), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-16 08:28:48,723 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-16 08:28:48,723 INFO L93 Difference]: Finished difference Result 4268 states and 6503 transitions. [2023-12-16 08:28:48,732 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-12-16 08:28:48,733 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 70.0) internal successors, (210), 3 states have internal predecessors, (210), 0 states have call successors, (0), 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 222 [2023-12-16 08:28:48,733 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-16 08:28:48,741 INFO L225 Difference]: With dead ends: 4268 [2023-12-16 08:28:48,741 INFO L226 Difference]: Without dead ends: 2982 [2023-12-16 08:28:48,743 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 221 GetRequests, 220 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-12-16 08:28:48,743 INFO L413 NwaCegarLoop]: 176 mSDtfsCounter, 56 mSDsluCounter, 30 mSDsCounter, 0 mSdLazyCounter, 639 mSolverCounterSat, 96 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 56 SdHoareTripleChecker+Valid, 206 SdHoareTripleChecker+Invalid, 735 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 96 IncrementalHoareTripleChecker+Valid, 639 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.9s IncrementalHoareTripleChecker+Time [2023-12-16 08:28:48,744 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [56 Valid, 206 Invalid, 735 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [96 Valid, 639 Invalid, 0 Unknown, 0 Unchecked, 0.9s Time] [2023-12-16 08:28:48,746 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2982 states. [2023-12-16 08:28:48,777 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2982 to 2978. [2023-12-16 08:28:48,780 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2978 states, 2977 states have (on average 1.4249244205576084) internal successors, (4242), 2977 states have internal predecessors, (4242), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-16 08:28:48,785 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2978 states to 2978 states and 4242 transitions. [2023-12-16 08:28:48,785 INFO L78 Accepts]: Start accepts. Automaton has 2978 states and 4242 transitions. Word has length 222 [2023-12-16 08:28:48,785 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-16 08:28:48,785 INFO L495 AbstractCegarLoop]: Abstraction has 2978 states and 4242 transitions. [2023-12-16 08:28:48,786 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 70.0) internal successors, (210), 3 states have internal predecessors, (210), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-16 08:28:48,786 INFO L276 IsEmpty]: Start isEmpty. Operand 2978 states and 4242 transitions. [2023-12-16 08:28:48,789 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 227 [2023-12-16 08:28:48,790 INFO L187 NwaCegarLoop]: Found error trace [2023-12-16 08:28:48,790 INFO L195 NwaCegarLoop]: trace histogram [4, 4, 4, 4, 4, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-16 08:28:48,792 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 (6)] Ended with exit code 0 [2023-12-16 08:28:48,992 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 6 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2023-12-16 08:28:48,993 INFO L420 AbstractCegarLoop]: === Iteration 6 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-16 08:28:48,993 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-16 08:28:48,993 INFO L85 PathProgramCache]: Analyzing trace with hash 247527316, now seen corresponding path program 1 times [2023-12-16 08:28:48,995 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-12-16 08:28:48,995 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1236372537] [2023-12-16 08:28:48,995 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-16 08:28:48,995 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2023-12-16 08:28:48,995 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2023-12-16 08:28:48,996 INFO L229 MonitoredProcess]: Starting monitored process 7 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2023-12-16 08:28:49,024 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (7)] Waiting until timeout for monitored process [2023-12-16 08:28:49,121 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 08:28:49,123 INFO L262 TraceCheckSpWp]: Trace formula consists of 352 conjuncts, 2 conjunts are in the unsatisfiable core [2023-12-16 08:28:49,126 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-16 08:28:49,154 INFO L134 CoverageAnalysis]: Checked inductivity of 57 backedges. 51 proven. 0 refuted. 0 times theorem prover too weak. 6 trivial. 0 not checked. [2023-12-16 08:28:49,154 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-12-16 08:28:49,155 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-12-16 08:28:49,155 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1236372537] [2023-12-16 08:28:49,155 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1236372537] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-16 08:28:49,155 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-16 08:28:49,155 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2023-12-16 08:28:49,155 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [865907399] [2023-12-16 08:28:49,155 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-16 08:28:49,155 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-12-16 08:28:49,155 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-12-16 08:28:49,156 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-12-16 08:28:49,156 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-12-16 08:28:49,156 INFO L87 Difference]: Start difference. First operand 2978 states and 4242 transitions. Second operand has 3 states, 3 states have (on average 73.66666666666667) internal successors, (221), 3 states have internal predecessors, (221), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-16 08:28:50,071 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-16 08:28:50,071 INFO L93 Difference]: Finished difference Result 7945 states and 11663 transitions. [2023-12-16 08:28:50,073 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-12-16 08:28:50,073 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 73.66666666666667) internal successors, (221), 3 states have internal predecessors, (221), 0 states have call successors, (0), 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 226 [2023-12-16 08:28:50,073 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-16 08:28:50,085 INFO L225 Difference]: With dead ends: 7945 [2023-12-16 08:28:50,085 INFO L226 Difference]: Without dead ends: 5424 [2023-12-16 08:28:50,088 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 225 GetRequests, 224 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-12-16 08:28:50,089 INFO L413 NwaCegarLoop]: 370 mSDtfsCounter, 216 mSDsluCounter, 28 mSDsCounter, 0 mSdLazyCounter, 530 mSolverCounterSat, 176 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 216 SdHoareTripleChecker+Valid, 398 SdHoareTripleChecker+Invalid, 706 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 176 IncrementalHoareTripleChecker+Valid, 530 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.9s IncrementalHoareTripleChecker+Time [2023-12-16 08:28:50,089 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [216 Valid, 398 Invalid, 706 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [176 Valid, 530 Invalid, 0 Unknown, 0 Unchecked, 0.9s Time] [2023-12-16 08:28:50,093 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 5424 states. [2023-12-16 08:28:50,136 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 5424 to 4199. [2023-12-16 08:28:50,141 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 4199 states, 4198 states have (on average 1.3373034778465935) internal successors, (5614), 4198 states have internal predecessors, (5614), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-16 08:28:50,145 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4199 states to 4199 states and 5614 transitions. [2023-12-16 08:28:50,146 INFO L78 Accepts]: Start accepts. Automaton has 4199 states and 5614 transitions. Word has length 226 [2023-12-16 08:28:50,146 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-16 08:28:50,146 INFO L495 AbstractCegarLoop]: Abstraction has 4199 states and 5614 transitions. [2023-12-16 08:28:50,146 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 73.66666666666667) internal successors, (221), 3 states have internal predecessors, (221), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-16 08:28:50,146 INFO L276 IsEmpty]: Start isEmpty. Operand 4199 states and 5614 transitions. [2023-12-16 08:28:50,150 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 237 [2023-12-16 08:28:50,150 INFO L187 NwaCegarLoop]: Found error trace [2023-12-16 08:28:50,152 INFO L195 NwaCegarLoop]: trace histogram [3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-16 08:28:50,155 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (7)] Forceful destruction successful, exit code 0 [2023-12-16 08:28:50,354 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 7 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2023-12-16 08:28:50,355 INFO L420 AbstractCegarLoop]: === Iteration 7 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-16 08:28:50,355 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-16 08:28:50,355 INFO L85 PathProgramCache]: Analyzing trace with hash 1181952265, now seen corresponding path program 1 times [2023-12-16 08:28:50,356 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-12-16 08:28:50,356 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [977090639] [2023-12-16 08:28:50,356 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-16 08:28:50,357 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2023-12-16 08:28:50,357 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2023-12-16 08:28:50,358 INFO L229 MonitoredProcess]: Starting monitored process 8 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2023-12-16 08:28:50,376 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (8)] Waiting until timeout for monitored process [2023-12-16 08:28:50,476 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 08:28:50,479 INFO L262 TraceCheckSpWp]: Trace formula consists of 335 conjuncts, 3 conjunts are in the unsatisfiable core [2023-12-16 08:28:50,489 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-16 08:28:50,611 INFO L134 CoverageAnalysis]: Checked inductivity of 53 backedges. 53 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-12-16 08:28:50,612 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-12-16 08:28:50,612 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-12-16 08:28:50,612 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [977090639] [2023-12-16 08:28:50,612 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [977090639] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-16 08:28:50,612 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-16 08:28:50,612 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2023-12-16 08:28:50,612 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1829195986] [2023-12-16 08:28:50,612 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-16 08:28:50,613 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2023-12-16 08:28:50,613 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-12-16 08:28:50,613 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2023-12-16 08:28:50,613 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2023-12-16 08:28:50,613 INFO L87 Difference]: Start difference. First operand 4199 states and 5614 transitions. Second operand has 4 states, 4 states have (on average 59.0) internal successors, (236), 3 states have internal predecessors, (236), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-16 08:28:51,840 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-16 08:28:51,840 INFO L93 Difference]: Finished difference Result 10803 states and 14594 transitions. [2023-12-16 08:28:51,841 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2023-12-16 08:28:51,841 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 59.0) internal successors, (236), 3 states have internal predecessors, (236), 0 states have call successors, (0), 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 236 [2023-12-16 08:28:51,841 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-16 08:28:51,855 INFO L225 Difference]: With dead ends: 10803 [2023-12-16 08:28:51,856 INFO L226 Difference]: Without dead ends: 7061 [2023-12-16 08:28:51,860 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 235 GetRequests, 233 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2023-12-16 08:28:51,861 INFO L413 NwaCegarLoop]: 195 mSDtfsCounter, 593 mSDsluCounter, 54 mSDsCounter, 0 mSdLazyCounter, 949 mSolverCounterSat, 99 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 593 SdHoareTripleChecker+Valid, 249 SdHoareTripleChecker+Invalid, 1048 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 99 IncrementalHoareTripleChecker+Valid, 949 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.2s IncrementalHoareTripleChecker+Time [2023-12-16 08:28:51,861 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [593 Valid, 249 Invalid, 1048 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [99 Valid, 949 Invalid, 0 Unknown, 0 Unchecked, 1.2s Time] [2023-12-16 08:28:51,866 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 7061 states. [2023-12-16 08:28:51,940 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 7061 to 7054. [2023-12-16 08:28:51,948 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 7054 states, 7053 states have (on average 1.2968949383241175) internal successors, (9147), 7053 states have internal predecessors, (9147), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-16 08:28:51,958 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7054 states to 7054 states and 9147 transitions. [2023-12-16 08:28:51,958 INFO L78 Accepts]: Start accepts. Automaton has 7054 states and 9147 transitions. Word has length 236 [2023-12-16 08:28:51,959 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-16 08:28:51,959 INFO L495 AbstractCegarLoop]: Abstraction has 7054 states and 9147 transitions. [2023-12-16 08:28:51,959 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 59.0) internal successors, (236), 3 states have internal predecessors, (236), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-16 08:28:51,959 INFO L276 IsEmpty]: Start isEmpty. Operand 7054 states and 9147 transitions. [2023-12-16 08:28:51,966 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 245 [2023-12-16 08:28:51,966 INFO L187 NwaCegarLoop]: Found error trace [2023-12-16 08:28:51,966 INFO L195 NwaCegarLoop]: trace histogram [4, 4, 4, 4, 4, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-16 08:28:51,971 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (8)] Forceful destruction successful, exit code 0 [2023-12-16 08:28:52,169 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 8 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2023-12-16 08:28:52,169 INFO L420 AbstractCegarLoop]: === Iteration 8 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-16 08:28:52,170 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-16 08:28:52,170 INFO L85 PathProgramCache]: Analyzing trace with hash 1504246376, now seen corresponding path program 1 times [2023-12-16 08:28:52,172 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-12-16 08:28:52,172 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1351269308] [2023-12-16 08:28:52,172 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-16 08:28:52,172 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2023-12-16 08:28:52,172 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2023-12-16 08:28:52,174 INFO L229 MonitoredProcess]: Starting monitored process 9 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2023-12-16 08:28:52,175 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (9)] Waiting until timeout for monitored process [2023-12-16 08:28:52,322 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 08:28:52,324 INFO L262 TraceCheckSpWp]: Trace formula consists of 369 conjuncts, 3 conjunts are in the unsatisfiable core [2023-12-16 08:28:52,327 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-16 08:28:52,468 INFO L134 CoverageAnalysis]: Checked inductivity of 75 backedges. 69 proven. 0 refuted. 0 times theorem prover too weak. 6 trivial. 0 not checked. [2023-12-16 08:28:52,469 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-12-16 08:28:52,469 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-12-16 08:28:52,469 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1351269308] [2023-12-16 08:28:52,469 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1351269308] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-16 08:28:52,469 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-16 08:28:52,469 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2023-12-16 08:28:52,469 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1657566230] [2023-12-16 08:28:52,469 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-16 08:28:52,470 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2023-12-16 08:28:52,470 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-12-16 08:28:52,470 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2023-12-16 08:28:52,471 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2023-12-16 08:28:52,471 INFO L87 Difference]: Start difference. First operand 7054 states and 9147 transitions. Second operand has 4 states, 4 states have (on average 59.75) internal successors, (239), 3 states have internal predecessors, (239), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-16 08:28:53,616 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-16 08:28:53,616 INFO L93 Difference]: Finished difference Result 11784 states and 15381 transitions. [2023-12-16 08:28:53,617 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2023-12-16 08:28:53,618 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 59.75) internal successors, (239), 3 states have internal predecessors, (239), 0 states have call successors, (0), 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 244 [2023-12-16 08:28:53,618 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-16 08:28:53,631 INFO L225 Difference]: With dead ends: 11784 [2023-12-16 08:28:53,631 INFO L226 Difference]: Without dead ends: 5187 [2023-12-16 08:28:53,643 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 243 GetRequests, 241 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2023-12-16 08:28:53,644 INFO L413 NwaCegarLoop]: 37 mSDtfsCounter, 569 mSDsluCounter, 14 mSDsCounter, 0 mSdLazyCounter, 774 mSolverCounterSat, 158 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.9s Time, 0 mProtectedPredicate, 0 mProtectedAction, 569 SdHoareTripleChecker+Valid, 51 SdHoareTripleChecker+Invalid, 932 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 158 IncrementalHoareTripleChecker+Valid, 774 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.1s IncrementalHoareTripleChecker+Time [2023-12-16 08:28:53,644 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [569 Valid, 51 Invalid, 932 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [158 Valid, 774 Invalid, 0 Unknown, 0 Unchecked, 1.1s Time] [2023-12-16 08:28:53,648 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 5187 states. [2023-12-16 08:28:53,703 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 5187 to 5187. [2023-12-16 08:28:53,710 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5187 states, 5186 states have (on average 1.207674508291554) internal successors, (6263), 5186 states have internal predecessors, (6263), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-16 08:28:53,717 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5187 states to 5187 states and 6263 transitions. [2023-12-16 08:28:53,718 INFO L78 Accepts]: Start accepts. Automaton has 5187 states and 6263 transitions. Word has length 244 [2023-12-16 08:28:53,718 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-16 08:28:53,718 INFO L495 AbstractCegarLoop]: Abstraction has 5187 states and 6263 transitions. [2023-12-16 08:28:53,718 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 59.75) internal successors, (239), 3 states have internal predecessors, (239), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-16 08:28:53,718 INFO L276 IsEmpty]: Start isEmpty. Operand 5187 states and 6263 transitions. [2023-12-16 08:28:53,725 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 258 [2023-12-16 08:28:53,725 INFO L187 NwaCegarLoop]: Found error trace [2023-12-16 08:28:53,725 INFO L195 NwaCegarLoop]: trace histogram [3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-16 08:28:53,732 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (9)] Forceful destruction successful, exit code 0 [2023-12-16 08:28:53,928 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 9 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2023-12-16 08:28:53,929 INFO L420 AbstractCegarLoop]: === Iteration 9 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-16 08:28:53,929 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-16 08:28:53,929 INFO L85 PathProgramCache]: Analyzing trace with hash -714525824, now seen corresponding path program 1 times [2023-12-16 08:28:53,931 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-12-16 08:28:53,931 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [304572948] [2023-12-16 08:28:53,931 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-16 08:28:53,931 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2023-12-16 08:28:53,931 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2023-12-16 08:28:53,932 INFO L229 MonitoredProcess]: Starting monitored process 10 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2023-12-16 08:28:53,937 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (10)] Waiting until timeout for monitored process [2023-12-16 08:28:54,064 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 08:28:54,066 INFO L262 TraceCheckSpWp]: Trace formula consists of 355 conjuncts, 3 conjunts are in the unsatisfiable core [2023-12-16 08:28:54,069 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-16 08:28:54,135 INFO L134 CoverageAnalysis]: Checked inductivity of 95 backedges. 54 proven. 0 refuted. 0 times theorem prover too weak. 41 trivial. 0 not checked. [2023-12-16 08:28:54,135 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-12-16 08:28:54,135 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-12-16 08:28:54,135 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [304572948] [2023-12-16 08:28:54,136 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [304572948] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-16 08:28:54,136 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-16 08:28:54,136 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2023-12-16 08:28:54,136 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1950116490] [2023-12-16 08:28:54,136 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-16 08:28:54,136 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-12-16 08:28:54,136 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-12-16 08:28:54,137 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-12-16 08:28:54,137 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-12-16 08:28:54,137 INFO L87 Difference]: Start difference. First operand 5187 states and 6263 transitions. Second operand has 3 states, 3 states have (on average 72.33333333333333) internal successors, (217), 2 states have internal predecessors, (217), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-16 08:28:55,015 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-16 08:28:55,015 INFO L93 Difference]: Finished difference Result 12780 states and 15594 transitions. [2023-12-16 08:28:55,015 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-12-16 08:28:55,015 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 72.33333333333333) internal successors, (217), 2 states have internal predecessors, (217), 0 states have call successors, (0), 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 257 [2023-12-16 08:28:55,016 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-16 08:28:55,031 INFO L225 Difference]: With dead ends: 12780 [2023-12-16 08:28:55,031 INFO L226 Difference]: Without dead ends: 7847 [2023-12-16 08:28:55,035 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 256 GetRequests, 255 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-12-16 08:28:55,036 INFO L413 NwaCegarLoop]: 147 mSDtfsCounter, 214 mSDsluCounter, 18 mSDsCounter, 0 mSdLazyCounter, 654 mSolverCounterSat, 14 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 214 SdHoareTripleChecker+Valid, 165 SdHoareTripleChecker+Invalid, 668 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 14 IncrementalHoareTripleChecker+Valid, 654 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.8s IncrementalHoareTripleChecker+Time [2023-12-16 08:28:55,036 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [214 Valid, 165 Invalid, 668 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [14 Valid, 654 Invalid, 0 Unknown, 0 Unchecked, 0.8s Time] [2023-12-16 08:28:55,040 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 7847 states. [2023-12-16 08:28:55,110 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 7847 to 7843. [2023-12-16 08:28:55,127 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 7843 states, 7842 states have (on average 1.21920428462127) internal successors, (9561), 7842 states have internal predecessors, (9561), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-16 08:28:55,136 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7843 states to 7843 states and 9561 transitions. [2023-12-16 08:28:55,136 INFO L78 Accepts]: Start accepts. Automaton has 7843 states and 9561 transitions. Word has length 257 [2023-12-16 08:28:55,136 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-16 08:28:55,136 INFO L495 AbstractCegarLoop]: Abstraction has 7843 states and 9561 transitions. [2023-12-16 08:28:55,137 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 72.33333333333333) internal successors, (217), 2 states have internal predecessors, (217), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-16 08:28:55,137 INFO L276 IsEmpty]: Start isEmpty. Operand 7843 states and 9561 transitions. [2023-12-16 08:28:55,143 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 275 [2023-12-16 08:28:55,143 INFO L187 NwaCegarLoop]: Found error trace [2023-12-16 08:28:55,143 INFO L195 NwaCegarLoop]: trace histogram [5, 5, 5, 5, 5, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-16 08:28:55,149 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (10)] Forceful destruction successful, exit code 0 [2023-12-16 08:28:55,346 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 10 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2023-12-16 08:28:55,346 INFO L420 AbstractCegarLoop]: === Iteration 10 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-16 08:28:55,346 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-16 08:28:55,347 INFO L85 PathProgramCache]: Analyzing trace with hash 154263849, now seen corresponding path program 1 times [2023-12-16 08:28:55,348 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-12-16 08:28:55,348 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1509211669] [2023-12-16 08:28:55,348 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-16 08:28:55,348 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2023-12-16 08:28:55,348 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2023-12-16 08:28:55,349 INFO L229 MonitoredProcess]: Starting monitored process 11 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2023-12-16 08:28:55,352 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (11)] Waiting until timeout for monitored process [2023-12-16 08:28:55,500 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 08:28:55,502 INFO L262 TraceCheckSpWp]: Trace formula consists of 414 conjuncts, 2 conjunts are in the unsatisfiable core [2023-12-16 08:28:55,504 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-16 08:28:55,539 INFO L134 CoverageAnalysis]: Checked inductivity of 149 backedges. 102 proven. 0 refuted. 0 times theorem prover too weak. 47 trivial. 0 not checked. [2023-12-16 08:28:55,539 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-12-16 08:28:55,539 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-12-16 08:28:55,539 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1509211669] [2023-12-16 08:28:55,539 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1509211669] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-16 08:28:55,539 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-16 08:28:55,539 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2023-12-16 08:28:55,539 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [759819370] [2023-12-16 08:28:55,539 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-16 08:28:55,540 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-12-16 08:28:55,540 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-12-16 08:28:55,540 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-12-16 08:28:55,540 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-12-16 08:28:55,540 INFO L87 Difference]: Start difference. First operand 7843 states and 9561 transitions. Second operand has 3 states, 3 states have (on average 76.33333333333333) internal successors, (229), 3 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) [2023-12-16 08:28:56,403 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-16 08:28:56,403 INFO L93 Difference]: Finished difference Result 22951 states and 28067 transitions. [2023-12-16 08:28:56,403 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-12-16 08:28:56,403 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 76.33333333333333) internal successors, (229), 3 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 274 [2023-12-16 08:28:56,404 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-16 08:28:56,429 INFO L225 Difference]: With dead ends: 22951 [2023-12-16 08:28:56,429 INFO L226 Difference]: Without dead ends: 15362 [2023-12-16 08:28:56,438 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 273 GetRequests, 272 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-12-16 08:28:56,439 INFO L413 NwaCegarLoop]: 221 mSDtfsCounter, 221 mSDsluCounter, 13 mSDsCounter, 0 mSdLazyCounter, 533 mSolverCounterSat, 141 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 221 SdHoareTripleChecker+Valid, 234 SdHoareTripleChecker+Invalid, 674 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 141 IncrementalHoareTripleChecker+Valid, 533 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.8s IncrementalHoareTripleChecker+Time [2023-12-16 08:28:56,439 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [221 Valid, 234 Invalid, 674 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [141 Valid, 533 Invalid, 0 Unknown, 0 Unchecked, 0.8s Time] [2023-12-16 08:28:56,451 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 15362 states. [2023-12-16 08:28:56,574 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 15362 to 15354. [2023-12-16 08:28:56,591 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 15354 states, 15353 states have (on average 1.1817885755226991) internal successors, (18144), 15353 states have internal predecessors, (18144), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-16 08:28:56,608 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 15354 states to 15354 states and 18144 transitions. [2023-12-16 08:28:56,608 INFO L78 Accepts]: Start accepts. Automaton has 15354 states and 18144 transitions. Word has length 274 [2023-12-16 08:28:56,608 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-16 08:28:56,608 INFO L495 AbstractCegarLoop]: Abstraction has 15354 states and 18144 transitions. [2023-12-16 08:28:56,608 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 76.33333333333333) internal successors, (229), 3 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) [2023-12-16 08:28:56,608 INFO L276 IsEmpty]: Start isEmpty. Operand 15354 states and 18144 transitions. [2023-12-16 08:28:56,617 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 308 [2023-12-16 08:28:56,617 INFO L187 NwaCegarLoop]: Found error trace [2023-12-16 08:28:56,618 INFO L195 NwaCegarLoop]: trace histogram [5, 5, 5, 5, 5, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-16 08:28:56,637 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (11)] Forceful destruction successful, exit code 0 [2023-12-16 08:28:56,823 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 11 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2023-12-16 08:28:56,823 INFO L420 AbstractCegarLoop]: === Iteration 11 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-16 08:28:56,823 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-16 08:28:56,824 INFO L85 PathProgramCache]: Analyzing trace with hash -1543888991, now seen corresponding path program 1 times [2023-12-16 08:28:56,825 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-12-16 08:28:56,825 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [887103015] [2023-12-16 08:28:56,825 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-16 08:28:56,825 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2023-12-16 08:28:56,825 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2023-12-16 08:28:56,826 INFO L229 MonitoredProcess]: Starting monitored process 12 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2023-12-16 08:28:56,827 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (12)] Waiting until timeout for monitored process [2023-12-16 08:28:56,968 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 08:28:56,970 INFO L262 TraceCheckSpWp]: Trace formula consists of 450 conjuncts, 4 conjunts are in the unsatisfiable core [2023-12-16 08:28:56,973 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-16 08:28:57,264 INFO L134 CoverageAnalysis]: Checked inductivity of 193 backedges. 152 proven. 0 refuted. 0 times theorem prover too weak. 41 trivial. 0 not checked. [2023-12-16 08:28:57,264 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-12-16 08:28:57,264 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-12-16 08:28:57,264 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [887103015] [2023-12-16 08:28:57,264 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [887103015] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-16 08:28:57,264 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-16 08:28:57,264 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2023-12-16 08:28:57,264 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [719337813] [2023-12-16 08:28:57,264 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-16 08:28:57,265 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2023-12-16 08:28:57,265 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-12-16 08:28:57,265 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2023-12-16 08:28:57,265 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=10, Invalid=10, Unknown=0, NotChecked=0, Total=20 [2023-12-16 08:28:57,265 INFO L87 Difference]: Start difference. First operand 15354 states and 18144 transitions. Second operand has 5 states, 5 states have (on average 53.4) internal successors, (267), 4 states have internal predecessors, (267), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-16 08:28:58,684 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-16 08:28:58,685 INFO L93 Difference]: Finished difference Result 59021 states and 70063 transitions. [2023-12-16 08:28:58,685 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2023-12-16 08:28:58,685 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 53.4) internal successors, (267), 4 states have internal predecessors, (267), 0 states have call successors, (0), 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 307 [2023-12-16 08:28:58,685 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-16 08:28:58,738 INFO L225 Difference]: With dead ends: 59021 [2023-12-16 08:28:58,738 INFO L226 Difference]: Without dead ends: 43921 [2023-12-16 08:28:58,760 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 306 GetRequests, 303 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=10, Invalid=10, Unknown=0, NotChecked=0, Total=20 [2023-12-16 08:28:58,761 INFO L413 NwaCegarLoop]: 145 mSDtfsCounter, 999 mSDsluCounter, 467 mSDsCounter, 0 mSdLazyCounter, 897 mSolverCounterSat, 164 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 999 SdHoareTripleChecker+Valid, 612 SdHoareTripleChecker+Invalid, 1061 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 164 IncrementalHoareTripleChecker+Valid, 897 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.2s IncrementalHoareTripleChecker+Time [2023-12-16 08:28:58,761 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [999 Valid, 612 Invalid, 1061 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [164 Valid, 897 Invalid, 0 Unknown, 0 Unchecked, 1.2s Time] [2023-12-16 08:28:58,795 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 43921 states. [2023-12-16 08:28:59,244 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 43921 to 43905. [2023-12-16 08:28:59,278 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 43905 states, 43904 states have (on average 1.1846984329446064) internal successors, (52013), 43904 states have internal predecessors, (52013), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-16 08:28:59,334 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 43905 states to 43905 states and 52013 transitions. [2023-12-16 08:28:59,334 INFO L78 Accepts]: Start accepts. Automaton has 43905 states and 52013 transitions. Word has length 307 [2023-12-16 08:28:59,334 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-16 08:28:59,334 INFO L495 AbstractCegarLoop]: Abstraction has 43905 states and 52013 transitions. [2023-12-16 08:28:59,335 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 53.4) internal successors, (267), 4 states have internal predecessors, (267), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-16 08:28:59,335 INFO L276 IsEmpty]: Start isEmpty. Operand 43905 states and 52013 transitions. [2023-12-16 08:28:59,349 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 309 [2023-12-16 08:28:59,349 INFO L187 NwaCegarLoop]: Found error trace [2023-12-16 08:28:59,350 INFO L195 NwaCegarLoop]: trace histogram [6, 6, 6, 6, 6, 5, 5, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-16 08:28:59,355 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 (12)] Ended with exit code 0 [2023-12-16 08:28:59,552 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 12 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2023-12-16 08:28:59,553 INFO L420 AbstractCegarLoop]: === Iteration 12 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-16 08:28:59,553 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-16 08:28:59,553 INFO L85 PathProgramCache]: Analyzing trace with hash -953662112, now seen corresponding path program 1 times [2023-12-16 08:28:59,651 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-12-16 08:28:59,651 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1191835555] [2023-12-16 08:28:59,651 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-16 08:28:59,651 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2023-12-16 08:28:59,651 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2023-12-16 08:28:59,655 INFO L229 MonitoredProcess]: Starting monitored process 13 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2023-12-16 08:28:59,656 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (13)] Waiting until timeout for monitored process [2023-12-16 08:28:59,792 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 08:28:59,795 INFO L262 TraceCheckSpWp]: Trace formula consists of 464 conjuncts, 2 conjunts are in the unsatisfiable core [2023-12-16 08:28:59,797 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-16 08:28:59,839 INFO L134 CoverageAnalysis]: Checked inductivity of 261 backedges. 154 proven. 0 refuted. 0 times theorem prover too weak. 107 trivial. 0 not checked. [2023-12-16 08:28:59,839 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-12-16 08:28:59,839 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-12-16 08:28:59,839 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1191835555] [2023-12-16 08:28:59,839 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1191835555] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-16 08:28:59,839 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-16 08:28:59,839 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2023-12-16 08:28:59,839 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1386311635] [2023-12-16 08:28:59,839 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-16 08:28:59,840 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-12-16 08:28:59,840 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-12-16 08:28:59,840 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-12-16 08:28:59,840 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-12-16 08:28:59,840 INFO L87 Difference]: Start difference. First operand 43905 states and 52013 transitions. Second operand has 3 states, 3 states have (on average 78.0) internal successors, (234), 3 states have internal predecessors, (234), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-16 08:29:00,983 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-16 08:29:00,983 INFO L93 Difference]: Finished difference Result 118869 states and 140294 transitions. [2023-12-16 08:29:00,985 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-12-16 08:29:00,985 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 78.0) internal successors, (234), 3 states have internal predecessors, (234), 0 states have call successors, (0), 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 308 [2023-12-16 08:29:00,985 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-16 08:29:01,088 INFO L225 Difference]: With dead ends: 118869 [2023-12-16 08:29:01,089 INFO L226 Difference]: Without dead ends: 75218 [2023-12-16 08:29:01,117 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 307 GetRequests, 306 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-12-16 08:29:01,118 INFO L413 NwaCegarLoop]: 260 mSDtfsCounter, 200 mSDsluCounter, 19 mSDsCounter, 0 mSdLazyCounter, 563 mSolverCounterSat, 117 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 200 SdHoareTripleChecker+Valid, 279 SdHoareTripleChecker+Invalid, 680 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 117 IncrementalHoareTripleChecker+Valid, 563 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.8s IncrementalHoareTripleChecker+Time [2023-12-16 08:29:01,118 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [200 Valid, 279 Invalid, 680 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [117 Valid, 563 Invalid, 0 Unknown, 0 Unchecked, 0.8s Time] [2023-12-16 08:29:01,176 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 75218 states. [2023-12-16 08:29:02,077 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 75218 to 75185. [2023-12-16 08:29:02,149 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 75185 states, 75184 states have (on average 1.1591296020429878) internal successors, (87148), 75184 states have internal predecessors, (87148), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-16 08:29:02,279 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 75185 states to 75185 states and 87148 transitions. [2023-12-16 08:29:02,279 INFO L78 Accepts]: Start accepts. Automaton has 75185 states and 87148 transitions. Word has length 308 [2023-12-16 08:29:02,279 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-16 08:29:02,280 INFO L495 AbstractCegarLoop]: Abstraction has 75185 states and 87148 transitions. [2023-12-16 08:29:02,280 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 78.0) internal successors, (234), 3 states have internal predecessors, (234), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-16 08:29:02,280 INFO L276 IsEmpty]: Start isEmpty. Operand 75185 states and 87148 transitions. [2023-12-16 08:29:02,441 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 314 [2023-12-16 08:29:02,441 INFO L187 NwaCegarLoop]: Found error trace [2023-12-16 08:29:02,443 INFO L195 NwaCegarLoop]: trace histogram [4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-16 08:29:02,460 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (13)] Forceful destruction successful, exit code 0 [2023-12-16 08:29:02,645 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 13 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2023-12-16 08:29:02,646 INFO L420 AbstractCegarLoop]: === Iteration 13 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-16 08:29:02,646 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-16 08:29:02,646 INFO L85 PathProgramCache]: Analyzing trace with hash -621617367, now seen corresponding path program 1 times [2023-12-16 08:29:02,648 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-12-16 08:29:02,648 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1261302066] [2023-12-16 08:29:02,648 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-16 08:29:02,648 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2023-12-16 08:29:02,648 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2023-12-16 08:29:02,649 INFO L229 MonitoredProcess]: Starting monitored process 14 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2023-12-16 08:29:02,650 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (14)] Waiting until timeout for monitored process [2023-12-16 08:29:02,779 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 08:29:02,781 INFO L262 TraceCheckSpWp]: Trace formula consists of 435 conjuncts, 3 conjunts are in the unsatisfiable core [2023-12-16 08:29:02,784 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-16 08:29:03,067 INFO L134 CoverageAnalysis]: Checked inductivity of 151 backedges. 125 proven. 0 refuted. 0 times theorem prover too weak. 26 trivial. 0 not checked. [2023-12-16 08:29:03,068 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-12-16 08:29:03,068 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-12-16 08:29:03,068 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1261302066] [2023-12-16 08:29:03,068 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1261302066] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-16 08:29:03,068 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-16 08:29:03,068 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2023-12-16 08:29:03,068 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1491760385] [2023-12-16 08:29:03,068 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-16 08:29:03,069 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-12-16 08:29:03,069 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-12-16 08:29:03,069 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-12-16 08:29:03,069 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-12-16 08:29:03,070 INFO L87 Difference]: Start difference. First operand 75185 states and 87148 transitions. Second operand has 3 states, 3 states have (on average 96.33333333333333) internal successors, (289), 2 states have internal predecessors, (289), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-16 08:29:04,361 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-16 08:29:04,361 INFO L93 Difference]: Finished difference Result 184062 states and 214047 transitions. [2023-12-16 08:29:04,362 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-12-16 08:29:04,362 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 96.33333333333333) internal successors, (289), 2 states have internal predecessors, (289), 0 states have call successors, (0), 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 313 [2023-12-16 08:29:04,362 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-16 08:29:04,521 INFO L225 Difference]: With dead ends: 184062 [2023-12-16 08:29:04,521 INFO L226 Difference]: Without dead ends: 109131 [2023-12-16 08:29:04,561 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 312 GetRequests, 311 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-12-16 08:29:04,561 INFO L413 NwaCegarLoop]: 229 mSDtfsCounter, 121 mSDsluCounter, 15 mSDsCounter, 0 mSdLazyCounter, 632 mSolverCounterSat, 68 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 121 SdHoareTripleChecker+Valid, 244 SdHoareTripleChecker+Invalid, 700 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 68 IncrementalHoareTripleChecker+Valid, 632 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.8s IncrementalHoareTripleChecker+Time [2023-12-16 08:29:04,561 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [121 Valid, 244 Invalid, 700 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [68 Valid, 632 Invalid, 0 Unknown, 0 Unchecked, 0.8s Time] [2023-12-16 08:29:04,641 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 109131 states. [2023-12-16 08:29:05,845 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 109131 to 109086. [2023-12-16 08:29:05,910 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 109086 states, 109085 states have (on average 1.1311271027180638) internal successors, (123389), 109085 states have internal predecessors, (123389), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-16 08:29:06,191 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 109086 states to 109086 states and 123389 transitions. [2023-12-16 08:29:06,191 INFO L78 Accepts]: Start accepts. Automaton has 109086 states and 123389 transitions. Word has length 313 [2023-12-16 08:29:06,191 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-16 08:29:06,191 INFO L495 AbstractCegarLoop]: Abstraction has 109086 states and 123389 transitions. [2023-12-16 08:29:06,192 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 96.33333333333333) internal successors, (289), 2 states have internal predecessors, (289), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-16 08:29:06,192 INFO L276 IsEmpty]: Start isEmpty. Operand 109086 states and 123389 transitions. [2023-12-16 08:29:06,212 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 323 [2023-12-16 08:29:06,212 INFO L187 NwaCegarLoop]: Found error trace [2023-12-16 08:29:06,212 INFO L195 NwaCegarLoop]: trace histogram [5, 5, 5, 5, 5, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-16 08:29:06,216 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (14)] Forceful destruction successful, exit code 0 [2023-12-16 08:29:06,412 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 14 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2023-12-16 08:29:06,413 INFO L420 AbstractCegarLoop]: === Iteration 14 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-16 08:29:06,413 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-16 08:29:06,413 INFO L85 PathProgramCache]: Analyzing trace with hash 1937324202, now seen corresponding path program 1 times [2023-12-16 08:29:06,415 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-12-16 08:29:06,415 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [833211893] [2023-12-16 08:29:06,415 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-16 08:29:06,415 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2023-12-16 08:29:06,415 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2023-12-16 08:29:06,417 INFO L229 MonitoredProcess]: Starting monitored process 15 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2023-12-16 08:29:06,417 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (15)] Waiting until timeout for monitored process [2023-12-16 08:29:06,560 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 08:29:06,562 INFO L262 TraceCheckSpWp]: Trace formula consists of 467 conjuncts, 4 conjunts are in the unsatisfiable core [2023-12-16 08:29:06,565 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-16 08:29:06,757 INFO L134 CoverageAnalysis]: Checked inductivity of 208 backedges. 161 proven. 0 refuted. 0 times theorem prover too weak. 47 trivial. 0 not checked. [2023-12-16 08:29:06,758 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-12-16 08:29:06,758 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-12-16 08:29:06,758 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [833211893] [2023-12-16 08:29:06,758 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [833211893] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-16 08:29:06,758 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-16 08:29:06,758 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2023-12-16 08:29:06,758 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [120860582] [2023-12-16 08:29:06,758 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-16 08:29:06,759 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2023-12-16 08:29:06,759 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-12-16 08:29:06,759 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2023-12-16 08:29:06,759 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2023-12-16 08:29:06,759 INFO L87 Difference]: Start difference. First operand 109086 states and 123389 transitions. Second operand has 4 states, 4 states have (on average 69.25) internal successors, (277), 3 states have internal predecessors, (277), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-16 08:29:08,888 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-16 08:29:08,888 INFO L93 Difference]: Finished difference Result 311331 states and 351188 transitions. [2023-12-16 08:29:08,888 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2023-12-16 08:29:08,889 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 69.25) internal successors, (277), 3 states have internal predecessors, (277), 0 states have call successors, (0), 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 322 [2023-12-16 08:29:08,889 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-16 08:29:09,181 INFO L225 Difference]: With dead ends: 311331 [2023-12-16 08:29:09,181 INFO L226 Difference]: Without dead ends: 202499 [2023-12-16 08:29:09,225 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 321 GetRequests, 319 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2023-12-16 08:29:09,229 INFO L413 NwaCegarLoop]: 215 mSDtfsCounter, 405 mSDsluCounter, 285 mSDsCounter, 0 mSdLazyCounter, 707 mSolverCounterSat, 89 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.9s Time, 0 mProtectedPredicate, 0 mProtectedAction, 405 SdHoareTripleChecker+Valid, 500 SdHoareTripleChecker+Invalid, 796 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 89 IncrementalHoareTripleChecker+Valid, 707 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.0s IncrementalHoareTripleChecker+Time [2023-12-16 08:29:09,229 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [405 Valid, 500 Invalid, 796 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [89 Valid, 707 Invalid, 0 Unknown, 0 Unchecked, 1.0s Time] Received shutdown request... [2023-12-16 08:29:09,307 WARN L340 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (1)] Timeout while monitored process is still running, waiting 1000 ms for graceful end [2023-12-16 08:29:09,318 WARN L340 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (15)] Timeout while monitored process is still running, waiting 1000 ms for graceful end [2023-12-16 08:29:09,485 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 202499 states. [2023-12-16 08:29:09,486 INFO L805 garLoopResultBuilder]: Registering result TIMEOUT for location ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION (0 of 1 remaining) [2023-12-16 08:29:09,496 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 (15)] Ended with exit code 0 [2023-12-16 08:29:09,687 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 15 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2023-12-16 08:29:09,687 WARN L619 AbstractCegarLoop]: Verification canceled: while executing MinimizeSevpa. [2023-12-16 08:29:09,690 INFO L445 BasicCegarLoop]: Path program histogram: [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-16 08:29:09,692 INFO L179 ceAbstractionStarter]: Computing trace abstraction results [2023-12-16 08:29:09,693 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 16.12 08:29:09 BoogieIcfgContainer [2023-12-16 08:29:09,694 INFO L131 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2023-12-16 08:29:09,694 INFO L158 Benchmark]: Toolchain (without parser) took 67421.29ms. Allocated memory was 198.2MB in the beginning and 2.9GB in the end (delta: 2.7GB). Free memory was 148.5MB in the beginning and 1.9GB in the end (delta: -1.8GB). Peak memory consumption was 1.3GB. Max. memory is 8.0GB. [2023-12-16 08:29:09,694 INFO L158 Benchmark]: CDTParser took 0.36ms. Allocated memory is still 198.2MB. Free memory is still 154.9MB. There was no memory consumed. Max. memory is 8.0GB. [2023-12-16 08:29:09,694 INFO L158 Benchmark]: CACSL2BoogieTranslator took 670.94ms. Allocated memory is still 198.2MB. Free memory was 148.5MB in the beginning and 139.0MB in the end (delta: 9.5MB). Peak memory consumption was 42.6MB. Max. memory is 8.0GB. [2023-12-16 08:29:09,694 INFO L158 Benchmark]: Boogie Procedure Inliner took 101.60ms. Allocated memory is still 198.2MB. Free memory was 139.0MB in the beginning and 123.8MB in the end (delta: 15.2MB). Peak memory consumption was 15.7MB. Max. memory is 8.0GB. [2023-12-16 08:29:09,694 INFO L158 Benchmark]: Boogie Preprocessor took 117.77ms. Allocated memory is still 198.2MB. Free memory was 123.8MB in the beginning and 111.2MB in the end (delta: 12.6MB). Peak memory consumption was 12.6MB. Max. memory is 8.0GB. [2023-12-16 08:29:09,695 INFO L158 Benchmark]: RCFGBuilder took 1746.32ms. Allocated memory was 198.2MB in the beginning and 256.9MB in the end (delta: 58.7MB). Free memory was 111.2MB in the beginning and 111.7MB in the end (delta: -470.7kB). Peak memory consumption was 77.9MB. Max. memory is 8.0GB. [2023-12-16 08:29:09,695 INFO L158 Benchmark]: TraceAbstraction took 64779.33ms. Allocated memory was 256.9MB in the beginning and 2.9GB in the end (delta: 2.6GB). Free memory was 111.1MB in the beginning and 1.9GB in the end (delta: -1.8GB). Peak memory consumption was 1.2GB. Max. memory is 8.0GB. [2023-12-16 08:29:09,696 INFO L338 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.36ms. Allocated memory is still 198.2MB. Free memory is still 154.9MB. There was no memory consumed. Max. memory is 8.0GB. * CACSL2BoogieTranslator took 670.94ms. Allocated memory is still 198.2MB. Free memory was 148.5MB in the beginning and 139.0MB in the end (delta: 9.5MB). Peak memory consumption was 42.6MB. Max. memory is 8.0GB. * Boogie Procedure Inliner took 101.60ms. Allocated memory is still 198.2MB. Free memory was 139.0MB in the beginning and 123.8MB in the end (delta: 15.2MB). Peak memory consumption was 15.7MB. Max. memory is 8.0GB. * Boogie Preprocessor took 117.77ms. Allocated memory is still 198.2MB. Free memory was 123.8MB in the beginning and 111.2MB in the end (delta: 12.6MB). Peak memory consumption was 12.6MB. Max. memory is 8.0GB. * RCFGBuilder took 1746.32ms. Allocated memory was 198.2MB in the beginning and 256.9MB in the end (delta: 58.7MB). Free memory was 111.2MB in the beginning and 111.7MB in the end (delta: -470.7kB). Peak memory consumption was 77.9MB. Max. memory is 8.0GB. * TraceAbstraction took 64779.33ms. Allocated memory was 256.9MB in the beginning and 2.9GB in the end (delta: 2.6GB). Free memory was 111.1MB in the beginning and 1.9GB in the end (delta: -1.8GB). Peak memory consumption was 1.2GB. Max. memory is 8.0GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - StatisticsResult: ErrorAutomatonStatistics NumberErrorTraces: 0, NumberStatementsAllTraces: 0, NumberRelevantStatements: 0, 0.0s ErrorAutomatonConstructionTimeTotal, 0.0s FaulLocalizationTime, NumberStatementsFirstTrace: -1, TraceLengthAvg: 0, 0.0s ErrorAutomatonConstructionTimeAvg, 0.0s ErrorAutomatonDifferenceTimeAvg, 0.0s ErrorAutomatonDifferenceTimeTotal, NumberOfNoEnhancement: 0, NumberOfFiniteEnhancement: 0, NumberOfInfiniteEnhancement: 0 - TimeoutResultAtElement [Line: 1612]: Timeout (TraceAbstraction) Unable to prove that a call to reach_error is unreachable (line 1612). Cancelled while executing MinimizeSevpa. - StatisticsResult: Ultimate Automizer benchmark data CFG has 1 procedures, 240 locations, 1 error locations. Started 1 CEGAR loops. OverallTime: 64.7s, OverallIterations: 14, TraceHistogramMax: 6, PathProgramHistogramMax: 1, EmptinessCheckTime: 0.3s, AutomataDifference: 22.6s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 5952 SdHoareTripleChecker+Valid, 17.9s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 5952 mSDsluCounter, 4029 SdHoareTripleChecker+Invalid, 15.1s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 1236 mSDsCounter, 1760 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 14208 IncrementalHoareTripleChecker+Invalid, 15968 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 1760 mSolverCounterUnsat, 2793 mSDtfsCounter, 14208 mSolverCounterSat, 0.1s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown, PredicateUnifierStatistics: 0 DeclaredPredicates, 3491 GetRequests, 3448 SyntacticMatches, 0 SemanticMatches, 43 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 32 ImplicationChecksByTransitivity, 2.2s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=109086occurred in iteration=13, InterpolantAutomatonStates: 63, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: 4.3s AutomataMinimizationTime, 14 MinimizatonAttempts, 1348 StatesRemovedByMinimization, 10 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.3s SsaConstructionTime, 0.9s SatisfiabilityAnalysisTime, 32.7s InterpolantComputationTime, 3495 NumberOfCodeBlocks, 3495 NumberOfCodeBlocksAsserted, 14 NumberOfCheckSat, 3481 ConstructedInterpolants, 0 QuantifiedInterpolants, 31420 SizeOfPredicates, 33 NumberOfNonLiveVariables, 5108 ConjunctsInSsa, 97 ConjunctsInUnsatCore, 14 InterpolantComputations, 14 PerfectInterpolantSequences, 1347/1347 InterpolantCoveringCapability, INVARIANT_SYNTHESIS: No data available, INTERPOLANT_CONSOLIDATION: No data available, ABSTRACT_INTERPRETATION: No data available, PDR: No data available, ACCELERATED_INTERPOLATION: No data available, SIFA: No data available, ReuseStatistics: No data available RESULT: Ultimate could not prove your program: Timeout Completed graceful shutdown