/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/Problem04_label05.c -------------------------------------------------------------------------------- This is Ultimate 0.2.4-tmp.fs.bitabs-eval-d9c3e40-m [2023-12-16 08:30:48,432 INFO L188 SettingsManager]: Resetting all preferences to default values... [2023-12-16 08:30:48,500 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 08:30:48,504 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2023-12-16 08:30:48,504 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2023-12-16 08:30:48,519 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2023-12-16 08:30:48,520 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2023-12-16 08:30:48,520 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2023-12-16 08:30:48,521 INFO L151 SettingsManager]: Preferences of Boogie Preprocessor differ from their defaults: [2023-12-16 08:30:48,523 INFO L153 SettingsManager]: * Use memory slicer=true [2023-12-16 08:30:48,524 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2023-12-16 08:30:48,524 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2023-12-16 08:30:48,524 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2023-12-16 08:30:48,525 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2023-12-16 08:30:48,525 INFO L153 SettingsManager]: * Use SBE=true [2023-12-16 08:30:48,525 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2023-12-16 08:30:48,526 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2023-12-16 08:30:48,526 INFO L153 SettingsManager]: * sizeof long=4 [2023-12-16 08:30:48,526 INFO L153 SettingsManager]: * sizeof POINTER=4 [2023-12-16 08:30:48,526 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2023-12-16 08:30:48,526 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2023-12-16 08:30:48,528 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2023-12-16 08:30:48,528 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2023-12-16 08:30:48,528 INFO L153 SettingsManager]: * Adapt memory model on pointer casts if necessary=true [2023-12-16 08:30:48,528 INFO L153 SettingsManager]: * Use bitvectors instead of ints=true [2023-12-16 08:30:48,529 INFO L153 SettingsManager]: * Allow undefined functions=false [2023-12-16 08:30:48,529 INFO L153 SettingsManager]: * Memory model=HoenickeLindenmann_4ByteResolution [2023-12-16 08:30:48,529 INFO L153 SettingsManager]: * sizeof long double=12 [2023-12-16 08:30:48,529 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2023-12-16 08:30:48,529 INFO L153 SettingsManager]: * Use constant arrays=true [2023-12-16 08:30:48,530 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2023-12-16 08:30:48,530 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2023-12-16 08:30:48,530 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2023-12-16 08:30:48,530 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2023-12-16 08:30:48,530 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2023-12-16 08:30:48,531 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2023-12-16 08:30:48,531 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2023-12-16 08:30:48,531 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2023-12-16 08:30:48,531 INFO L153 SettingsManager]: * Trace refinement strategy=WOLF [2023-12-16 08:30:48,531 INFO L153 SettingsManager]: * Command for external solver=cvc4 --incremental --print-success --lang smt [2023-12-16 08:30:48,531 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2023-12-16 08:30:48,531 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2023-12-16 08:30:48,531 INFO L153 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2023-12-16 08:30:48,531 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2023-12-16 08:30:48,532 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2023-12-16 08:30:48,532 INFO L153 SettingsManager]: * Logic for external solver=AUFBV [2023-12-16 08:30:48,532 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release [2023-12-16 08:30:48,710 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2023-12-16 08:30:48,729 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2023-12-16 08:30:48,730 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2023-12-16 08:30:48,731 INFO L270 PluginConnector]: Initializing CDTParser... [2023-12-16 08:30:48,731 INFO L274 PluginConnector]: CDTParser initialized [2023-12-16 08:30:48,733 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/eca-rers2012/Problem04_label05.c [2023-12-16 08:30:49,854 INFO L533 CDTParser]: Created temporary CDT project at NULL [2023-12-16 08:30:50,272 INFO L384 CDTParser]: Found 1 translation units. [2023-12-16 08:30:50,272 INFO L180 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/eca-rers2012/Problem04_label05.c [2023-12-16 08:30:50,304 INFO L427 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/572e6a290/1bf98a485feb41c580f58621ab6a5ae2/FLAGec0ffdb46 [2023-12-16 08:30:50,317 INFO L435 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/572e6a290/1bf98a485feb41c580f58621ab6a5ae2 [2023-12-16 08:30:50,319 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2023-12-16 08:30:50,321 INFO L133 ToolchainWalker]: Walking toolchain with 5 elements. [2023-12-16 08:30:50,323 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2023-12-16 08:30:50,323 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2023-12-16 08:30:50,326 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2023-12-16 08:30:50,326 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 16.12 08:30:50" (1/1) ... [2023-12-16 08:30:50,327 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@1ba357e and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.12 08:30:50, skipping insertion in model container [2023-12-16 08:30:50,327 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 16.12 08:30:50" (1/1) ... [2023-12-16 08:30:50,430 INFO L177 MainTranslator]: Built tables and reachable declarations [2023-12-16 08:30:51,268 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/Problem04_label05.c[180054,180067] [2023-12-16 08:30:51,286 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-12-16 08:30:51,295 INFO L202 MainTranslator]: Completed pre-run [2023-12-16 08:30:51,646 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/Problem04_label05.c[180054,180067] [2023-12-16 08:30:51,652 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-12-16 08:30:51,671 INFO L206 MainTranslator]: Completed translation [2023-12-16 08:30:51,673 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.12 08:30:51 WrapperNode [2023-12-16 08:30:51,673 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2023-12-16 08:30:51,674 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2023-12-16 08:30:51,674 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2023-12-16 08:30:51,674 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2023-12-16 08:30:51,679 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.12 08:30:51" (1/1) ... [2023-12-16 08:30:51,724 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.12 08:30:51" (1/1) ... [2023-12-16 08:30:51,835 INFO L138 Inliner]: procedures = 17, calls = 11, calls flagged for inlining = 6, calls inlined = 6, statements flattened = 5571 [2023-12-16 08:30:51,835 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2023-12-16 08:30:51,836 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2023-12-16 08:30:51,836 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2023-12-16 08:30:51,836 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2023-12-16 08:30:51,844 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.12 08:30:51" (1/1) ... [2023-12-16 08:30:51,844 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.12 08:30:51" (1/1) ... [2023-12-16 08:30:51,862 INFO L184 PluginConnector]: Executing the observer MemorySlicer from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.12 08:30:51" (1/1) ... [2023-12-16 08:30:51,915 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 08:30:51,915 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.12 08:30:51" (1/1) ... [2023-12-16 08:30:51,915 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.12 08:30:51" (1/1) ... [2023-12-16 08:30:51,977 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.12 08:30:51" (1/1) ... [2023-12-16 08:30:51,999 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.12 08:30:51" (1/1) ... [2023-12-16 08:30:52,015 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.12 08:30:51" (1/1) ... [2023-12-16 08:30:52,027 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.12 08:30:51" (1/1) ... [2023-12-16 08:30:52,075 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2023-12-16 08:30:52,076 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2023-12-16 08:30:52,077 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2023-12-16 08:30:52,077 INFO L274 PluginConnector]: RCFGBuilder initialized [2023-12-16 08:30:52,077 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.12 08:30:51" (1/1) ... [2023-12-16 08:30:52,096 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2023-12-16 08:30:52,103 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-12-16 08:30:52,122 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 08:30:52,144 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 08:30:52,150 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2023-12-16 08:30:52,150 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE1#0 [2023-12-16 08:30:52,150 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2023-12-16 08:30:52,151 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2023-12-16 08:30:52,223 INFO L241 CfgBuilder]: Building ICFG [2023-12-16 08:30:52,224 INFO L267 CfgBuilder]: Building CFG for each procedure with an implementation [2023-12-16 08:30:56,002 INFO L282 CfgBuilder]: Performing block encoding [2023-12-16 08:30:56,045 INFO L304 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2023-12-16 08:30:56,045 INFO L309 CfgBuilder]: Removed 1 assume(true) statements. [2023-12-16 08:30:56,046 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 16.12 08:30:56 BoogieIcfgContainer [2023-12-16 08:30:56,046 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2023-12-16 08:30:56,047 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2023-12-16 08:30:56,048 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2023-12-16 08:30:56,050 INFO L274 PluginConnector]: TraceAbstraction initialized [2023-12-16 08:30:56,050 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 16.12 08:30:50" (1/3) ... [2023-12-16 08:30:56,051 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@2ba3c2f9 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 16.12 08:30:56, skipping insertion in model container [2023-12-16 08:30:56,051 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.12 08:30:51" (2/3) ... [2023-12-16 08:30:56,051 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@2ba3c2f9 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 16.12 08:30:56, skipping insertion in model container [2023-12-16 08:30:56,051 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 16.12 08:30:56" (3/3) ... [2023-12-16 08:30:56,052 INFO L112 eAbstractionObserver]: Analyzing ICFG Problem04_label05.c [2023-12-16 08:30:56,064 INFO L204 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2023-12-16 08:30:56,065 INFO L163 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2023-12-16 08:30:56,104 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2023-12-16 08:30:56,108 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;@7cdae079, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2023-12-16 08:30:56,108 INFO L358 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2023-12-16 08:30:56,114 INFO L276 IsEmpty]: Start isEmpty. Operand has 823 states, 821 states have (on average 1.992691839220463) internal successors, (1636), 822 states have internal predecessors, (1636), 0 states have call successors, (0), 0 states 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 08:30:56,138 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 783 [2023-12-16 08:30:56,138 INFO L187 NwaCegarLoop]: Found error trace [2023-12-16 08:30:56,139 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-16 08:30:56,140 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-16 08:30:56,143 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-16 08:30:56,144 INFO L85 PathProgramCache]: Analyzing trace with hash -1003974172, now seen corresponding path program 1 times [2023-12-16 08:30:56,168 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-12-16 08:30:56,168 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1488550210] [2023-12-16 08:30:56,169 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-16 08:30:56,169 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 08:30:56,169 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2023-12-16 08:30:56,171 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 08:30:56,180 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 08:30:56,555 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 08:30:56,559 INFO L262 TraceCheckSpWp]: Trace formula consists of 829 conjuncts, 1 conjunts are in the unsatisfiable core [2023-12-16 08:30:56,572 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-16 08:30:56,664 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 08:30:56,664 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-12-16 08:30:56,664 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-12-16 08:30:56,664 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1488550210] [2023-12-16 08:30:56,665 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1488550210] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-16 08:30:56,665 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-16 08:30:56,665 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2023-12-16 08:30:56,666 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [365757028] [2023-12-16 08:30:56,667 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-16 08:30:56,682 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2023-12-16 08:30:56,683 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-12-16 08:30:56,704 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2023-12-16 08:30:56,704 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2023-12-16 08:30:56,708 INFO L87 Difference]: Start difference. First operand has 823 states, 821 states have (on average 1.992691839220463) internal successors, (1636), 822 states have internal predecessors, (1636), 0 states have call successors, (0), 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 391.0) internal successors, (782), 2 states have internal predecessors, (782), 0 states have call successors, (0), 0 states 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 08:30:56,790 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-16 08:30:56,790 INFO L93 Difference]: Finished difference Result 1645 states and 3271 transitions. [2023-12-16 08:30:56,791 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2023-12-16 08:30:56,792 INFO L78 Accepts]: Start accepts. Automaton has has 2 states, 2 states have (on average 391.0) internal successors, (782), 2 states have internal predecessors, (782), 0 states have call successors, (0), 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 782 [2023-12-16 08:30:56,794 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-16 08:30:56,804 INFO L225 Difference]: With dead ends: 1645 [2023-12-16 08:30:56,804 INFO L226 Difference]: Without dead ends: 821 [2023-12-16 08:30:56,808 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 781 GetRequests, 781 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 08:30:56,810 INFO L413 NwaCegarLoop]: 1571 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, 1571 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 08:30:56,811 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 1571 Invalid, 2 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 2 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2023-12-16 08:30:56,822 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 821 states. [2023-12-16 08:30:56,848 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 821 to 821. [2023-12-16 08:30:56,861 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 821 states, 820 states have (on average 1.9158536585365853) internal successors, (1571), 820 states have internal predecessors, (1571), 0 states have call successors, (0), 0 states 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 08:30:56,863 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 821 states to 821 states and 1571 transitions. [2023-12-16 08:30:56,864 INFO L78 Accepts]: Start accepts. Automaton has 821 states and 1571 transitions. Word has length 782 [2023-12-16 08:30:56,865 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-16 08:30:56,865 INFO L495 AbstractCegarLoop]: Abstraction has 821 states and 1571 transitions. [2023-12-16 08:30:56,865 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 2 states, 2 states have (on average 391.0) internal successors, (782), 2 states have internal predecessors, (782), 0 states have call successors, (0), 0 states 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 08:30:56,865 INFO L276 IsEmpty]: Start isEmpty. Operand 821 states and 1571 transitions. [2023-12-16 08:30:56,874 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 783 [2023-12-16 08:30:56,874 INFO L187 NwaCegarLoop]: Found error trace [2023-12-16 08:30:56,874 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-16 08:30:56,880 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 08:30:57,077 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 08:30:57,078 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-16 08:30:57,078 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-16 08:30:57,079 INFO L85 PathProgramCache]: Analyzing trace with hash -847042280, now seen corresponding path program 1 times [2023-12-16 08:30:57,086 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-12-16 08:30:57,087 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1566940495] [2023-12-16 08:30:57,087 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-16 08:30:57,087 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 08:30:57,087 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2023-12-16 08:30:57,088 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 08:30:57,124 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (3)] Waiting until timeout for monitored process [2023-12-16 08:30:57,421 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 08:30:57,424 INFO L262 TraceCheckSpWp]: Trace formula consists of 829 conjuncts, 23 conjunts are in the unsatisfiable core [2023-12-16 08:30:57,434 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-16 08:31:14,254 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 08:31:14,254 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-12-16 08:31:14,255 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-12-16 08:31:14,256 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1566940495] [2023-12-16 08:31:14,258 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1566940495] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-16 08:31:14,258 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-16 08:31:14,258 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [11] imperfect sequences [] total 11 [2023-12-16 08:31:14,259 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [31309936] [2023-12-16 08:31:14,259 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-16 08:31:14,262 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 12 states [2023-12-16 08:31:14,262 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-12-16 08:31:14,263 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2023-12-16 08:31:14,263 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=41, Invalid=91, Unknown=0, NotChecked=0, Total=132 [2023-12-16 08:31:14,263 INFO L87 Difference]: Start difference. First operand 821 states and 1571 transitions. Second operand has 12 states, 12 states have (on average 65.16666666666667) internal successors, (782), 11 states have internal predecessors, (782), 0 states have call successors, (0), 0 states 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 08:31:19,975 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-16 08:31:19,976 INFO L93 Difference]: Finished difference Result 2360 states and 4577 transitions. [2023-12-16 08:31:19,976 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2023-12-16 08:31:19,977 INFO L78 Accepts]: Start accepts. Automaton has has 12 states, 12 states have (on average 65.16666666666667) internal successors, (782), 11 states have internal predecessors, (782), 0 states have call successors, (0), 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 782 [2023-12-16 08:31:20,004 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-16 08:31:20,013 INFO L225 Difference]: With dead ends: 2360 [2023-12-16 08:31:20,014 INFO L226 Difference]: Without dead ends: 1540 [2023-12-16 08:31:20,015 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 785 GetRequests, 771 SyntacticMatches, 0 SemanticMatches, 14 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 18 ImplicationChecksByTransitivity, 0.4s TimeCoverageRelationStatistics Valid=89, Invalid=151, Unknown=0, NotChecked=0, Total=240 [2023-12-16 08:31:20,016 INFO L413 NwaCegarLoop]: 848 mSDtfsCounter, 831 mSDsluCounter, 29 mSDsCounter, 0 mSdLazyCounter, 6559 mSolverCounterSat, 711 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 4.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 831 SdHoareTripleChecker+Valid, 877 SdHoareTripleChecker+Invalid, 7270 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 711 IncrementalHoareTripleChecker+Valid, 6559 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 5.4s IncrementalHoareTripleChecker+Time [2023-12-16 08:31:20,017 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [831 Valid, 877 Invalid, 7270 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [711 Valid, 6559 Invalid, 0 Unknown, 0 Unchecked, 5.4s Time] [2023-12-16 08:31:20,020 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1540 states. [2023-12-16 08:31:20,044 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1540 to 1540. [2023-12-16 08:31:20,046 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1540 states, 1539 states have (on average 1.4912280701754386) internal successors, (2295), 1539 states have internal predecessors, (2295), 0 states have call successors, (0), 0 states 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 08:31:20,049 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1540 states to 1540 states and 2295 transitions. [2023-12-16 08:31:20,049 INFO L78 Accepts]: Start accepts. Automaton has 1540 states and 2295 transitions. Word has length 782 [2023-12-16 08:31:20,051 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-16 08:31:20,051 INFO L495 AbstractCegarLoop]: Abstraction has 1540 states and 2295 transitions. [2023-12-16 08:31:20,051 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 12 states, 12 states have (on average 65.16666666666667) internal successors, (782), 11 states have internal predecessors, (782), 0 states have call successors, (0), 0 states 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 08:31:20,051 INFO L276 IsEmpty]: Start isEmpty. Operand 1540 states and 2295 transitions. [2023-12-16 08:31:20,063 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 798 [2023-12-16 08:31:20,063 INFO L187 NwaCegarLoop]: Found error trace [2023-12-16 08:31:20,064 INFO L195 NwaCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 08:31:20,067 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 08:31:20,266 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 08:31:20,268 INFO L420 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-16 08:31:20,268 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-16 08:31:20,268 INFO L85 PathProgramCache]: Analyzing trace with hash -67187393, now seen corresponding path program 1 times [2023-12-16 08:31:20,275 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-12-16 08:31:20,275 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [403883990] [2023-12-16 08:31:20,275 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-16 08:31:20,276 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 08:31:20,276 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2023-12-16 08:31:20,280 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 08:31:20,296 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 08:31:20,543 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 08:31:20,546 INFO L262 TraceCheckSpWp]: Trace formula consists of 857 conjuncts, 23 conjunts are in the unsatisfiable core [2023-12-16 08:31:20,557 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-16 08:31:35,717 INFO L134 CoverageAnalysis]: Checked inductivity of 14 backedges. 14 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-12-16 08:31:35,718 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-12-16 08:31:35,718 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-12-16 08:31:35,720 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [403883990] [2023-12-16 08:31:35,722 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [403883990] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-16 08:31:35,722 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-16 08:31:35,723 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [12] imperfect sequences [] total 12 [2023-12-16 08:31:35,724 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1291237936] [2023-12-16 08:31:35,726 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-16 08:31:35,730 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 13 states [2023-12-16 08:31:35,730 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-12-16 08:31:35,731 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 13 interpolants. [2023-12-16 08:31:35,731 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=53, Invalid=103, Unknown=0, NotChecked=0, Total=156 [2023-12-16 08:31:35,732 INFO L87 Difference]: Start difference. First operand 1540 states and 2295 transitions. Second operand has 13 states, 13 states have (on average 61.30769230769231) internal successors, (797), 12 states have internal predecessors, (797), 0 states have call successors, (0), 0 states 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 08:31:45,149 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-16 08:31:45,149 INFO L93 Difference]: Finished difference Result 3864 states and 6803 transitions. [2023-12-16 08:31:45,150 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2023-12-16 08:31:45,150 INFO L78 Accepts]: Start accepts. Automaton has has 13 states, 13 states have (on average 61.30769230769231) internal successors, (797), 12 states have internal predecessors, (797), 0 states have call successors, (0), 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 797 [2023-12-16 08:31:45,151 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-16 08:31:45,172 INFO L225 Difference]: With dead ends: 3864 [2023-12-16 08:31:45,172 INFO L226 Difference]: Without dead ends: 3044 [2023-12-16 08:31:45,174 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 800 GetRequests, 785 SyntacticMatches, 0 SemanticMatches, 15 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 18 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=105, Invalid=167, Unknown=0, NotChecked=0, Total=272 [2023-12-16 08:31:45,175 INFO L413 NwaCegarLoop]: 845 mSDtfsCounter, 2708 mSDsluCounter, 56 mSDsCounter, 0 mSdLazyCounter, 13675 mSolverCounterSat, 1767 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 7.8s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2708 SdHoareTripleChecker+Valid, 901 SdHoareTripleChecker+Invalid, 15442 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 1767 IncrementalHoareTripleChecker+Valid, 13675 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 9.1s IncrementalHoareTripleChecker+Time [2023-12-16 08:31:45,175 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [2708 Valid, 901 Invalid, 15442 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [1767 Valid, 13675 Invalid, 0 Unknown, 0 Unchecked, 9.1s Time] [2023-12-16 08:31:45,177 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3044 states. [2023-12-16 08:31:45,212 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3044 to 3044. [2023-12-16 08:31:45,217 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3044 states, 3043 states have (on average 1.3233651002300362) internal successors, (4027), 3043 states have internal predecessors, (4027), 0 states have call successors, (0), 0 states 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 08:31:45,221 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3044 states to 3044 states and 4027 transitions. [2023-12-16 08:31:45,221 INFO L78 Accepts]: Start accepts. Automaton has 3044 states and 4027 transitions. Word has length 797 [2023-12-16 08:31:45,222 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-16 08:31:45,222 INFO L495 AbstractCegarLoop]: Abstraction has 3044 states and 4027 transitions. [2023-12-16 08:31:45,222 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 13 states, 13 states have (on average 61.30769230769231) internal successors, (797), 12 states have internal predecessors, (797), 0 states have call successors, (0), 0 states 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 08:31:45,222 INFO L276 IsEmpty]: Start isEmpty. Operand 3044 states and 4027 transitions. [2023-12-16 08:31:45,235 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 805 [2023-12-16 08:31:45,235 INFO L187 NwaCegarLoop]: Found error trace [2023-12-16 08:31:45,236 INFO L195 NwaCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 08:31:45,249 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 08:31:45,439 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 08:31:45,440 INFO L420 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-16 08:31:45,440 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-16 08:31:45,440 INFO L85 PathProgramCache]: Analyzing trace with hash 876056107, now seen corresponding path program 1 times [2023-12-16 08:31:45,444 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-12-16 08:31:45,444 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [329153946] [2023-12-16 08:31:45,444 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-16 08:31:45,444 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 08:31:45,444 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2023-12-16 08:31:45,445 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 08:31:45,472 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 08:31:45,679 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 08:31:45,682 INFO L262 TraceCheckSpWp]: Trace formula consists of 864 conjuncts, 21 conjunts are in the unsatisfiable core [2023-12-16 08:31:45,692 INFO L285 TraceCheckSpWp]: Computing forward predicates... Received shutdown request... [2023-12-16 08:31:58,405 INFO L805 garLoopResultBuilder]: Registering result TIMEOUT for location ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION (0 of 1 remaining) [2023-12-16 08:31:58,411 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 (5)] Ended with exit code 0 [2023-12-16 08:31:58,414 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 08:31:58,423 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 (5)] Timeout while monitored process is still running, waiting 1000 ms for graceful end [2023-12-16 08:31:58,609 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 08:31:58,609 WARN L619 AbstractCegarLoop]: Verification canceled: while NwaCegarLoop was analyzing trace of length 805 with TraceHistMax 2,while TraceCheckSpWp was constructing forward predicates,while PolyPacSimplificationTermWalker was simplifying a ∨-2-2-1 term,while PolyPacSimplificationTermWalker was simplifying 2 xjuncts wrt. a ∧-12-6-2-1 context. [2023-12-16 08:31:58,613 INFO L445 BasicCegarLoop]: Path program histogram: [1, 1, 1, 1] [2023-12-16 08:31:58,615 INFO L179 ceAbstractionStarter]: Computing trace abstraction results [2023-12-16 08:31:58,616 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 16.12 08:31:58 BoogieIcfgContainer [2023-12-16 08:31:58,617 INFO L131 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2023-12-16 08:31:58,617 INFO L158 Benchmark]: Toolchain (without parser) took 68296.19ms. Allocated memory was 284.2MB in the beginning and 1.7GB in the end (delta: 1.4GB). Free memory was 221.7MB in the beginning and 1.3GB in the end (delta: -1.1GB). Peak memory consumption was 301.8MB. Max. memory is 8.0GB. [2023-12-16 08:31:58,617 INFO L158 Benchmark]: CDTParser took 0.41ms. Allocated memory is still 188.7MB. Free memory is still 134.3MB. There was no memory consumed. Max. memory is 8.0GB. [2023-12-16 08:31:58,617 INFO L158 Benchmark]: CACSL2BoogieTranslator took 1350.77ms. Allocated memory is still 284.2MB. Free memory was 221.7MB in the beginning and 199.1MB in the end (delta: 22.6MB). Peak memory consumption was 102.2MB. Max. memory is 8.0GB. [2023-12-16 08:31:58,618 INFO L158 Benchmark]: Boogie Procedure Inliner took 161.38ms. Allocated memory is still 284.2MB. Free memory was 199.1MB in the beginning and 160.3MB in the end (delta: 38.8MB). Peak memory consumption was 38.8MB. Max. memory is 8.0GB. [2023-12-16 08:31:58,618 INFO L158 Benchmark]: Boogie Preprocessor took 239.92ms. Allocated memory is still 284.2MB. Free memory was 159.8MB in the beginning and 125.7MB in the end (delta: 34.1MB). Peak memory consumption was 33.6MB. Max. memory is 8.0GB. [2023-12-16 08:31:58,618 INFO L158 Benchmark]: RCFGBuilder took 3969.54ms. Allocated memory was 284.2MB in the beginning and 665.8MB in the end (delta: 381.7MB). Free memory was 125.7MB in the beginning and 533.0MB in the end (delta: -407.2MB). Peak memory consumption was 233.2MB. Max. memory is 8.0GB. [2023-12-16 08:31:58,618 INFO L158 Benchmark]: TraceAbstraction took 62569.09ms. Allocated memory was 665.8MB in the beginning and 1.7GB in the end (delta: 987.8MB). Free memory was 532.5MB in the beginning and 1.3GB in the end (delta: -757.4MB). Peak memory consumption was 230.9MB. Max. memory is 8.0GB. [2023-12-16 08:31:58,619 INFO L338 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.41ms. Allocated memory is still 188.7MB. Free memory is still 134.3MB. There was no memory consumed. Max. memory is 8.0GB. * CACSL2BoogieTranslator took 1350.77ms. Allocated memory is still 284.2MB. Free memory was 221.7MB in the beginning and 199.1MB in the end (delta: 22.6MB). Peak memory consumption was 102.2MB. Max. memory is 8.0GB. * Boogie Procedure Inliner took 161.38ms. Allocated memory is still 284.2MB. Free memory was 199.1MB in the beginning and 160.3MB in the end (delta: 38.8MB). Peak memory consumption was 38.8MB. Max. memory is 8.0GB. * Boogie Preprocessor took 239.92ms. Allocated memory is still 284.2MB. Free memory was 159.8MB in the beginning and 125.7MB in the end (delta: 34.1MB). Peak memory consumption was 33.6MB. Max. memory is 8.0GB. * RCFGBuilder took 3969.54ms. Allocated memory was 284.2MB in the beginning and 665.8MB in the end (delta: 381.7MB). Free memory was 125.7MB in the beginning and 533.0MB in the end (delta: -407.2MB). Peak memory consumption was 233.2MB. Max. memory is 8.0GB. * TraceAbstraction took 62569.09ms. Allocated memory was 665.8MB in the beginning and 1.7GB in the end (delta: 987.8MB). Free memory was 532.5MB in the beginning and 1.3GB in the end (delta: -757.4MB). Peak memory consumption was 230.9MB. 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: 4716]: Timeout (TraceAbstraction) Unable to prove that a call to reach_error is unreachable (line 4716). Cancelled while NwaCegarLoop was analyzing trace of length 805 with TraceHistMax 2,while TraceCheckSpWp was constructing forward predicates,while PolyPacSimplificationTermWalker was simplifying a ∨-2-2-1 term,while PolyPacSimplificationTermWalker was simplifying 2 xjuncts wrt. a ∧-12-6-2-1 context. - StatisticsResult: Ultimate Automizer benchmark data CFG has 1 procedures, 823 locations, 1 error locations. Started 1 CEGAR loops. OverallTime: 62.5s, OverallIterations: 4, TraceHistogramMax: 2, PathProgramHistogramMax: 1, EmptinessCheckTime: 0.1s, AutomataDifference: 15.3s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 3539 SdHoareTripleChecker+Valid, 14.4s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 3539 mSDsluCounter, 3349 SdHoareTripleChecker+Invalid, 12.4s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 85 mSDsCounter, 2478 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 20236 IncrementalHoareTripleChecker+Invalid, 22714 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 2478 mSolverCounterUnsat, 3264 mSDtfsCounter, 20236 mSolverCounterSat, 0.1s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown, PredicateUnifierStatistics: 0 DeclaredPredicates, 2366 GetRequests, 2337 SyntacticMatches, 0 SemanticMatches, 29 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 36 ImplicationChecksByTransitivity, 0.7s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=3044occurred in iteration=3, InterpolantAutomatonStates: 27, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: 0.1s AutomataMinimizationTime, 3 MinimizatonAttempts, 0 StatesRemovedByMinimization, 0 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.1s SsaConstructionTime, 0.4s SatisfiabilityAnalysisTime, 32.1s InterpolantComputationTime, 2361 NumberOfCodeBlocks, 2361 NumberOfCodeBlocksAsserted, 3 NumberOfCheckSat, 2358 ConstructedInterpolants, 0 QuantifiedInterpolants, 44755 SizeOfPredicates, 16 NumberOfNonLiveVariables, 2515 ConjunctsInSsa, 47 ConjunctsInUnsatCore, 3 InterpolantComputations, 3 PerfectInterpolantSequences, 14/14 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