/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_label14.c -------------------------------------------------------------------------------- This is Ultimate 0.2.4-tmp.fs.bitabs-eval-d9c3e40-m [2023-12-16 08:26:38,862 INFO L188 SettingsManager]: Resetting all preferences to default values... [2023-12-16 08:26:38,944 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 08:26:38,949 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2023-12-16 08:26:38,950 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2023-12-16 08:26:38,976 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2023-12-16 08:26:38,977 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2023-12-16 08:26:38,977 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2023-12-16 08:26:38,978 INFO L151 SettingsManager]: Preferences of Boogie Preprocessor differ from their defaults: [2023-12-16 08:26:38,981 INFO L153 SettingsManager]: * Use memory slicer=true [2023-12-16 08:26:38,981 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2023-12-16 08:26:38,982 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2023-12-16 08:26:38,982 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2023-12-16 08:26:38,983 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2023-12-16 08:26:38,983 INFO L153 SettingsManager]: * Use SBE=true [2023-12-16 08:26:38,984 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2023-12-16 08:26:38,984 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2023-12-16 08:26:38,984 INFO L153 SettingsManager]: * sizeof long=4 [2023-12-16 08:26:38,984 INFO L153 SettingsManager]: * sizeof POINTER=4 [2023-12-16 08:26:38,986 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2023-12-16 08:26:38,986 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2023-12-16 08:26:38,986 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2023-12-16 08:26:38,986 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2023-12-16 08:26:38,986 INFO L153 SettingsManager]: * Adapt memory model on pointer casts if necessary=true [2023-12-16 08:26:38,987 INFO L153 SettingsManager]: * Use bitvectors instead of ints=true [2023-12-16 08:26:38,987 INFO L153 SettingsManager]: * Allow undefined functions=false [2023-12-16 08:26:38,987 INFO L153 SettingsManager]: * Memory model=HoenickeLindenmann_4ByteResolution [2023-12-16 08:26:38,987 INFO L153 SettingsManager]: * sizeof long double=12 [2023-12-16 08:26:38,987 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2023-12-16 08:26:38,988 INFO L153 SettingsManager]: * Use constant arrays=true [2023-12-16 08:26:38,988 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2023-12-16 08:26:38,989 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2023-12-16 08:26:38,989 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2023-12-16 08:26:38,989 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2023-12-16 08:26:38,989 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2023-12-16 08:26:38,989 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2023-12-16 08:26:38,989 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2023-12-16 08:26:38,990 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2023-12-16 08:26:38,990 INFO L153 SettingsManager]: * Trace refinement strategy=WOLF [2023-12-16 08:26:38,990 INFO L153 SettingsManager]: * Command for external solver=cvc4 --incremental --print-success --lang smt [2023-12-16 08:26:38,990 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2023-12-16 08:26:38,990 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2023-12-16 08:26:38,990 INFO L153 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2023-12-16 08:26:38,991 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2023-12-16 08:26:38,991 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2023-12-16 08:26:38,991 INFO L153 SettingsManager]: * Logic for external solver=AUFBV [2023-12-16 08:26:38,991 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release [2023-12-16 08:26:39,228 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2023-12-16 08:26:39,243 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2023-12-16 08:26:39,246 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2023-12-16 08:26:39,246 INFO L270 PluginConnector]: Initializing CDTParser... [2023-12-16 08:26:39,250 INFO L274 PluginConnector]: CDTParser initialized [2023-12-16 08:26:39,251 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/eca-rers2012/Problem03_label14.c [2023-12-16 08:26:40,359 INFO L533 CDTParser]: Created temporary CDT project at NULL [2023-12-16 08:26:40,683 INFO L384 CDTParser]: Found 1 translation units. [2023-12-16 08:26:40,684 INFO L180 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/eca-rers2012/Problem03_label14.c [2023-12-16 08:26:40,705 INFO L427 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/c1e3a9f22/c1b57fae7a1e48a1874b6f87109dd96d/FLAG78b9212c4 [2023-12-16 08:26:40,719 INFO L435 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/c1e3a9f22/c1b57fae7a1e48a1874b6f87109dd96d [2023-12-16 08:26:40,721 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2023-12-16 08:26:40,722 INFO L133 ToolchainWalker]: Walking toolchain with 5 elements. [2023-12-16 08:26:40,724 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2023-12-16 08:26:40,724 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2023-12-16 08:26:40,728 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2023-12-16 08:26:40,729 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 16.12 08:26:40" (1/1) ... [2023-12-16 08:26:40,730 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@193c4fbc and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.12 08:26:40, skipping insertion in model container [2023-12-16 08:26:40,730 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 16.12 08:26:40" (1/1) ... [2023-12-16 08:26:40,800 INFO L177 MainTranslator]: Built tables and reachable declarations [2023-12-16 08:26:41,317 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_label14.c[57171,57184] [2023-12-16 08:26:41,353 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-12-16 08:26:41,365 INFO L202 MainTranslator]: Completed pre-run [2023-12-16 08:26:41,517 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_label14.c[57171,57184] [2023-12-16 08:26:41,529 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-12-16 08:26:41,548 INFO L206 MainTranslator]: Completed translation [2023-12-16 08:26:41,548 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.12 08:26:41 WrapperNode [2023-12-16 08:26:41,548 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2023-12-16 08:26:41,550 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2023-12-16 08:26:41,550 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2023-12-16 08:26:41,550 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2023-12-16 08:26:41,556 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.12 08:26:41" (1/1) ... [2023-12-16 08:26:41,590 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.12 08:26:41" (1/1) ... [2023-12-16 08:26:41,688 INFO L138 Inliner]: procedures = 14, calls = 8, calls flagged for inlining = 3, calls inlined = 3, statements flattened = 1770 [2023-12-16 08:26:41,688 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2023-12-16 08:26:41,689 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2023-12-16 08:26:41,689 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2023-12-16 08:26:41,689 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2023-12-16 08:26:41,698 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.12 08:26:41" (1/1) ... [2023-12-16 08:26:41,699 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.12 08:26:41" (1/1) ... [2023-12-16 08:26:41,719 INFO L184 PluginConnector]: Executing the observer MemorySlicer from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.12 08:26:41" (1/1) ... [2023-12-16 08:26:41,766 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 08:26:41,767 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.12 08:26:41" (1/1) ... [2023-12-16 08:26:41,767 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.12 08:26:41" (1/1) ... [2023-12-16 08:26:41,806 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.12 08:26:41" (1/1) ... [2023-12-16 08:26:41,825 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.12 08:26:41" (1/1) ... [2023-12-16 08:26:41,843 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.12 08:26:41" (1/1) ... [2023-12-16 08:26:41,850 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.12 08:26:41" (1/1) ... [2023-12-16 08:26:41,864 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2023-12-16 08:26:41,865 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2023-12-16 08:26:41,866 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2023-12-16 08:26:41,866 INFO L274 PluginConnector]: RCFGBuilder initialized [2023-12-16 08:26:41,867 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.12 08:26:41" (1/1) ... [2023-12-16 08:26:41,872 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2023-12-16 08:26:41,881 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-12-16 08:26:41,901 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 08:26:41,924 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 08:26:41,936 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2023-12-16 08:26:41,936 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE1#0 [2023-12-16 08:26:41,936 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2023-12-16 08:26:41,937 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2023-12-16 08:26:42,029 INFO L241 CfgBuilder]: Building ICFG [2023-12-16 08:26:42,030 INFO L267 CfgBuilder]: Building CFG for each procedure with an implementation [2023-12-16 08:26:44,062 INFO L282 CfgBuilder]: Performing block encoding [2023-12-16 08:26:44,105 INFO L304 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2023-12-16 08:26:44,105 INFO L309 CfgBuilder]: Removed 1 assume(true) statements. [2023-12-16 08:26:44,105 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 16.12 08:26:44 BoogieIcfgContainer [2023-12-16 08:26:44,105 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2023-12-16 08:26:44,107 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2023-12-16 08:26:44,108 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2023-12-16 08:26:44,110 INFO L274 PluginConnector]: TraceAbstraction initialized [2023-12-16 08:26:44,110 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 16.12 08:26:40" (1/3) ... [2023-12-16 08:26:44,111 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@201bc40b and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 16.12 08:26:44, skipping insertion in model container [2023-12-16 08:26:44,111 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.12 08:26:41" (2/3) ... [2023-12-16 08:26:44,111 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@201bc40b and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 16.12 08:26:44, skipping insertion in model container [2023-12-16 08:26:44,111 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 16.12 08:26:44" (3/3) ... [2023-12-16 08:26:44,112 INFO L112 eAbstractionObserver]: Analyzing ICFG Problem03_label14.c [2023-12-16 08:26:44,126 INFO L204 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2023-12-16 08:26:44,126 INFO L163 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2023-12-16 08:26:44,166 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2023-12-16 08:26:44,171 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;@34695a6, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2023-12-16 08:26:44,171 INFO L358 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2023-12-16 08:26:44,176 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 08:26:44,188 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 170 [2023-12-16 08:26:44,188 INFO L187 NwaCegarLoop]: Found error trace [2023-12-16 08:26:44,188 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] [2023-12-16 08:26:44,189 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-16 08:26:44,193 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-16 08:26:44,193 INFO L85 PathProgramCache]: Analyzing trace with hash 1681799603, now seen corresponding path program 1 times [2023-12-16 08:26:44,208 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-12-16 08:26:44,208 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [2126652502] [2023-12-16 08:26:44,209 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-16 08:26:44,209 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 08:26:44,209 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2023-12-16 08:26:44,212 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 08:26:44,219 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 08:26:44,433 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 08:26:44,437 INFO L262 TraceCheckSpWp]: Trace formula consists of 232 conjuncts, 1 conjunts are in the unsatisfiable core [2023-12-16 08:26:44,452 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-16 08:26:44,494 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 08:26:44,495 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-12-16 08:26:44,495 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-12-16 08:26:44,496 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [2126652502] [2023-12-16 08:26:44,496 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [2126652502] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-16 08:26:44,496 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-16 08:26:44,496 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2023-12-16 08:26:44,498 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1386805462] [2023-12-16 08:26:44,498 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-16 08:26:44,502 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2023-12-16 08:26:44,502 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-12-16 08:26:44,527 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2023-12-16 08:26:44,528 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2023-12-16 08:26:44,531 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 84.5) internal successors, (169), 2 states have internal predecessors, (169), 0 states have call successors, (0), 0 states 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 08:26:44,603 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-16 08:26:44,603 INFO L93 Difference]: Finished difference Result 479 states and 913 transitions. [2023-12-16 08:26:44,612 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2023-12-16 08:26:44,614 INFO L78 Accepts]: Start accepts. Automaton has has 2 states, 2 states have (on average 84.5) internal successors, (169), 2 states have internal predecessors, (169), 0 states have call successors, (0), 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 169 [2023-12-16 08:26:44,614 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-16 08:26:44,625 INFO L225 Difference]: With dead ends: 479 [2023-12-16 08:26:44,625 INFO L226 Difference]: Without dead ends: 238 [2023-12-16 08:26:44,628 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 168 GetRequests, 168 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 08:26:44,631 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 08:26:44,631 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 08:26:44,646 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 238 states. [2023-12-16 08:26:44,668 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 238 to 238. [2023-12-16 08:26:44,669 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 08:26:44,671 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 238 states to 238 states and 392 transitions. [2023-12-16 08:26:44,672 INFO L78 Accepts]: Start accepts. Automaton has 238 states and 392 transitions. Word has length 169 [2023-12-16 08:26:44,673 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-16 08:26:44,673 INFO L495 AbstractCegarLoop]: Abstraction has 238 states and 392 transitions. [2023-12-16 08:26:44,673 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 2 states, 2 states have (on average 84.5) internal successors, (169), 2 states have internal predecessors, (169), 0 states have call successors, (0), 0 states 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 08:26:44,673 INFO L276 IsEmpty]: Start isEmpty. Operand 238 states and 392 transitions. [2023-12-16 08:26:44,675 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 170 [2023-12-16 08:26:44,675 INFO L187 NwaCegarLoop]: Found error trace [2023-12-16 08:26:44,676 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] [2023-12-16 08:26:44,682 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 (2)] Forceful destruction successful, exit code 0 [2023-12-16 08:26:44,880 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 08:26:44,880 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-16 08:26:44,881 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-16 08:26:44,881 INFO L85 PathProgramCache]: Analyzing trace with hash -434992729, now seen corresponding path program 1 times [2023-12-16 08:26:44,885 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-12-16 08:26:44,885 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [67854713] [2023-12-16 08:26:44,885 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-16 08:26:44,885 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 08:26:44,885 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2023-12-16 08:26:44,889 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 08:26:44,892 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 08:26:45,075 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 08:26:45,078 INFO L262 TraceCheckSpWp]: Trace formula consists of 232 conjuncts, 33 conjunts are in the unsatisfiable core [2023-12-16 08:26:45,094 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-16 08:26:58,004 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 08:26:58,004 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-12-16 08:26:58,005 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-12-16 08:26:58,005 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [67854713] [2023-12-16 08:26:58,005 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [67854713] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-16 08:26:58,005 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-16 08:26:58,005 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2023-12-16 08:26:58,005 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1169760743] [2023-12-16 08:26:58,006 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-16 08:26:58,007 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2023-12-16 08:26:58,007 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-12-16 08:26:58,008 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2023-12-16 08:26:58,008 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=17, Invalid=55, Unknown=0, NotChecked=0, Total=72 [2023-12-16 08:26:58,008 INFO L87 Difference]: Start difference. First operand 238 states and 392 transitions. Second operand has 9 states, 9 states have (on average 18.77777777777778) internal successors, (169), 8 states have internal predecessors, (169), 0 states have call successors, (0), 0 states 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 08:27:01,942 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-16 08:27:01,943 INFO L93 Difference]: Finished difference Result 588 states and 1007 transitions. [2023-12-16 08:27:01,943 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2023-12-16 08:27:01,944 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 9 states have (on average 18.77777777777778) internal successors, (169), 8 states have internal predecessors, (169), 0 states have call successors, (0), 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 169 [2023-12-16 08:27:01,944 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-16 08:27:01,946 INFO L225 Difference]: With dead ends: 588 [2023-12-16 08:27:01,946 INFO L226 Difference]: Without dead ends: 351 [2023-12-16 08:27:01,948 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 173 GetRequests, 161 SyntacticMatches, 0 SemanticMatches, 12 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 8 ImplicationChecksByTransitivity, 1.2s TimeCoverageRelationStatistics Valid=62, Invalid=120, Unknown=0, NotChecked=0, Total=182 [2023-12-16 08:27:01,949 INFO L413 NwaCegarLoop]: 274 mSDtfsCounter, 299 mSDsluCounter, 135 mSDsCounter, 0 mSdLazyCounter, 2726 mSolverCounterSat, 104 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.9s Time, 0 mProtectedPredicate, 0 mProtectedAction, 299 SdHoareTripleChecker+Valid, 409 SdHoareTripleChecker+Invalid, 2830 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 104 IncrementalHoareTripleChecker+Valid, 2726 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 3.3s IncrementalHoareTripleChecker+Time [2023-12-16 08:27:01,949 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [299 Valid, 409 Invalid, 2830 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [104 Valid, 2726 Invalid, 0 Unknown, 0 Unchecked, 3.3s Time] [2023-12-16 08:27:01,950 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 351 states. [2023-12-16 08:27:01,963 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 351 to 351. [2023-12-16 08:27:01,964 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 08:27:01,966 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 351 states to 351 states and 511 transitions. [2023-12-16 08:27:01,966 INFO L78 Accepts]: Start accepts. Automaton has 351 states and 511 transitions. Word has length 169 [2023-12-16 08:27:01,966 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-16 08:27:01,966 INFO L495 AbstractCegarLoop]: Abstraction has 351 states and 511 transitions. [2023-12-16 08:27:01,967 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 9 states have (on average 18.77777777777778) internal successors, (169), 8 states have internal predecessors, (169), 0 states have call successors, (0), 0 states 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 08:27:01,967 INFO L276 IsEmpty]: Start isEmpty. Operand 351 states and 511 transitions. [2023-12-16 08:27:01,969 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 177 [2023-12-16 08:27:01,969 INFO L187 NwaCegarLoop]: Found error trace [2023-12-16 08:27:01,970 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] [2023-12-16 08:27:01,987 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (3)] Forceful destruction successful, exit code 0 [2023-12-16 08:27:02,172 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 08:27:02,173 INFO L420 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-16 08:27:02,174 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-16 08:27:02,174 INFO L85 PathProgramCache]: Analyzing trace with hash -520175944, now seen corresponding path program 1 times [2023-12-16 08:27:02,181 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-12-16 08:27:02,182 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1917653916] [2023-12-16 08:27:02,182 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-16 08:27:02,182 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 08:27:02,182 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2023-12-16 08:27:02,183 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 08:27:02,187 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 08:27:02,339 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 08:27:02,342 INFO L262 TraceCheckSpWp]: Trace formula consists of 256 conjuncts, 31 conjunts are in the unsatisfiable core [2023-12-16 08:27:02,353 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-16 08:27:16,191 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 08:27:16,191 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-12-16 08:27:16,191 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-12-16 08:27:16,192 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1917653916] [2023-12-16 08:27:16,192 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1917653916] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-16 08:27:16,192 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-16 08:27:16,192 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2023-12-16 08:27:16,192 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1713412312] [2023-12-16 08:27:16,193 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-16 08:27:16,194 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2023-12-16 08:27:16,194 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-12-16 08:27:16,195 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2023-12-16 08:27:16,195 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=27, Invalid=63, Unknown=0, NotChecked=0, Total=90 [2023-12-16 08:27:16,195 INFO L87 Difference]: Start difference. First operand 351 states and 511 transitions. Second operand has 10 states, 10 states have (on average 17.6) internal successors, (176), 9 states have internal predecessors, (176), 0 states have call successors, (0), 0 states 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 08:27:19,552 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-16 08:27:19,552 INFO L93 Difference]: Finished difference Result 729 states and 1181 transitions. [2023-12-16 08:27:19,553 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2023-12-16 08:27:19,553 INFO L78 Accepts]: Start accepts. Automaton has has 10 states, 10 states have (on average 17.6) internal successors, (176), 9 states have internal predecessors, (176), 0 states have call successors, (0), 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 176 [2023-12-16 08:27:19,553 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-16 08:27:19,555 INFO L225 Difference]: With dead ends: 729 [2023-12-16 08:27:19,556 INFO L226 Difference]: Without dead ends: 492 [2023-12-16 08:27:19,557 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 178 GetRequests, 167 SyntacticMatches, 0 SemanticMatches, 11 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 12 ImplicationChecksByTransitivity, 0.8s TimeCoverageRelationStatistics Valid=57, Invalid=99, Unknown=0, NotChecked=0, Total=156 [2023-12-16 08:27:19,558 INFO L413 NwaCegarLoop]: 243 mSDtfsCounter, 310 mSDsluCounter, 142 mSDsCounter, 0 mSdLazyCounter, 3182 mSolverCounterSat, 133 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 310 SdHoareTripleChecker+Valid, 385 SdHoareTripleChecker+Invalid, 3315 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 133 IncrementalHoareTripleChecker+Valid, 3182 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 3.1s IncrementalHoareTripleChecker+Time [2023-12-16 08:27:19,558 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [310 Valid, 385 Invalid, 3315 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [133 Valid, 3182 Invalid, 0 Unknown, 0 Unchecked, 3.1s Time] [2023-12-16 08:27:19,559 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 492 states. [2023-12-16 08:27:19,572 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 492 to 492. [2023-12-16 08:27:19,573 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 492 states, 491 states have (on average 1.340122199592668) internal successors, (658), 491 states have internal predecessors, (658), 0 states have call successors, (0), 0 states 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 08:27:19,574 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 492 states to 492 states and 658 transitions. [2023-12-16 08:27:19,574 INFO L78 Accepts]: Start accepts. Automaton has 492 states and 658 transitions. Word has length 176 [2023-12-16 08:27:19,575 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-16 08:27:19,575 INFO L495 AbstractCegarLoop]: Abstraction has 492 states and 658 transitions. [2023-12-16 08:27:19,575 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 10 states have (on average 17.6) internal successors, (176), 9 states have internal predecessors, (176), 0 states have call successors, (0), 0 states 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 08:27:19,575 INFO L276 IsEmpty]: Start isEmpty. Operand 492 states and 658 transitions. [2023-12-16 08:27:19,578 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 185 [2023-12-16 08:27:19,579 INFO L187 NwaCegarLoop]: Found error trace [2023-12-16 08:27:19,579 INFO L195 NwaCegarLoop]: trace histogram [3, 3, 3, 3, 3, 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] [2023-12-16 08:27:19,589 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (4)] Ended with exit code 0 [2023-12-16 08:27:19,781 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 08:27:19,782 INFO L420 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-16 08:27:19,782 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-16 08:27:19,783 INFO L85 PathProgramCache]: Analyzing trace with hash 2004979607, now seen corresponding path program 1 times [2023-12-16 08:27:19,785 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-12-16 08:27:19,785 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1089121984] [2023-12-16 08:27:19,785 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-16 08:27:19,785 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2023-12-16 08:27:19,786 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2023-12-16 08:27:19,787 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 08:27:19,790 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 08:27:19,911 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 08:27:19,913 INFO L262 TraceCheckSpWp]: Trace formula consists of 290 conjuncts, 2 conjunts are in the unsatisfiable core [2023-12-16 08:27:19,915 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-16 08:27:20,091 INFO L134 CoverageAnalysis]: Checked inductivity of 20 backedges. 14 proven. 0 refuted. 0 times theorem prover too weak. 6 trivial. 0 not checked. [2023-12-16 08:27:20,091 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-12-16 08:27:20,091 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-12-16 08:27:20,091 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1089121984] [2023-12-16 08:27:20,091 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1089121984] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-16 08:27:20,092 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-16 08:27:20,092 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2023-12-16 08:27:20,092 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2108558871] [2023-12-16 08:27:20,092 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-16 08:27:20,092 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-12-16 08:27:20,093 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-12-16 08:27:20,093 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-12-16 08:27:20,093 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-12-16 08:27:20,094 INFO L87 Difference]: Start difference. First operand 492 states and 658 transitions. Second operand has 3 states, 3 states have (on average 59.666666666666664) internal successors, (179), 3 states have internal predecessors, (179), 0 states have call successors, (0), 0 states 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 08:27:21,028 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-16 08:27:21,028 INFO L93 Difference]: Finished difference Result 953 states and 1426 transitions. [2023-12-16 08:27:21,028 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-12-16 08:27:21,029 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 59.666666666666664) internal successors, (179), 3 states have internal predecessors, (179), 0 states have call successors, (0), 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 184 [2023-12-16 08:27:21,029 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-16 08:27:21,031 INFO L225 Difference]: With dead ends: 953 [2023-12-16 08:27:21,032 INFO L226 Difference]: Without dead ends: 716 [2023-12-16 08:27:21,032 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 183 GetRequests, 182 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 08:27:21,033 INFO L413 NwaCegarLoop]: 101 mSDtfsCounter, 86 mSDsluCounter, 15 mSDsCounter, 0 mSdLazyCounter, 585 mSolverCounterSat, 194 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.8s Time, 0 mProtectedPredicate, 0 mProtectedAction, 86 SdHoareTripleChecker+Valid, 116 SdHoareTripleChecker+Invalid, 779 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 194 IncrementalHoareTripleChecker+Valid, 585 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.9s IncrementalHoareTripleChecker+Time [2023-12-16 08:27:21,034 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [86 Valid, 116 Invalid, 779 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [194 Valid, 585 Invalid, 0 Unknown, 0 Unchecked, 0.9s Time] [2023-12-16 08:27:21,035 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 716 states. [2023-12-16 08:27:21,045 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 716 to 702. [2023-12-16 08:27:21,046 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 702 states, 701 states have (on average 1.412268188302425) internal successors, (990), 701 states have internal predecessors, (990), 0 states have call successors, (0), 0 states 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 08:27:21,048 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 702 states to 702 states and 990 transitions. [2023-12-16 08:27:21,049 INFO L78 Accepts]: Start accepts. Automaton has 702 states and 990 transitions. Word has length 184 [2023-12-16 08:27:21,049 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-16 08:27:21,049 INFO L495 AbstractCegarLoop]: Abstraction has 702 states and 990 transitions. [2023-12-16 08:27:21,049 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 59.666666666666664) internal successors, (179), 3 states have internal predecessors, (179), 0 states have call successors, (0), 0 states 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 08:27:21,050 INFO L276 IsEmpty]: Start isEmpty. Operand 702 states and 990 transitions. [2023-12-16 08:27:21,053 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 190 [2023-12-16 08:27:21,053 INFO L187 NwaCegarLoop]: Found error trace [2023-12-16 08:27:21,053 INFO L195 NwaCegarLoop]: trace histogram [4, 4, 4, 3, 3, 3, 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] [2023-12-16 08:27:21,060 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 08:27:21,256 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 08:27:21,256 INFO L420 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-16 08:27:21,257 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-16 08:27:21,257 INFO L85 PathProgramCache]: Analyzing trace with hash 337573741, now seen corresponding path program 1 times [2023-12-16 08:27:21,258 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-12-16 08:27:21,258 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [2031026735] [2023-12-16 08:27:21,258 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-16 08:27:21,259 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 08:27:21,259 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2023-12-16 08:27:21,260 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 08:27:21,261 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 08:27:21,379 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 08:27:21,381 INFO L262 TraceCheckSpWp]: Trace formula consists of 319 conjuncts, 2 conjunts are in the unsatisfiable core [2023-12-16 08:27:21,385 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-16 08:27:21,396 INFO L134 CoverageAnalysis]: Checked inductivity of 34 backedges. 28 proven. 0 refuted. 0 times theorem prover too weak. 6 trivial. 0 not checked. [2023-12-16 08:27:21,396 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-12-16 08:27:21,396 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-12-16 08:27:21,397 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [2031026735] [2023-12-16 08:27:21,397 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [2031026735] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-16 08:27:21,397 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-16 08:27:21,397 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2023-12-16 08:27:21,397 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1008611192] [2023-12-16 08:27:21,398 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-16 08:27:21,398 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-12-16 08:27:21,398 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-12-16 08:27:21,399 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-12-16 08:27:21,399 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-12-16 08:27:21,399 INFO L87 Difference]: Start difference. First operand 702 states and 990 transitions. Second operand has 3 states, 3 states have (on average 61.333333333333336) internal successors, (184), 3 states have internal predecessors, (184), 0 states have call successors, (0), 0 states 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 08:27:21,835 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-16 08:27:21,835 INFO L93 Difference]: Finished difference Result 1586 states and 2422 transitions. [2023-12-16 08:27:21,836 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-12-16 08:27:21,836 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 61.333333333333336) internal successors, (184), 3 states have internal predecessors, (184), 0 states have call successors, (0), 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 189 [2023-12-16 08:27:21,836 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-16 08:27:21,840 INFO L225 Difference]: With dead ends: 1586 [2023-12-16 08:27:21,840 INFO L226 Difference]: Without dead ends: 1139 [2023-12-16 08:27:21,841 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 188 GetRequests, 187 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 08:27:21,842 INFO L413 NwaCegarLoop]: 295 mSDtfsCounter, 359 mSDsluCounter, 258 mSDsCounter, 0 mSdLazyCounter, 174 mSolverCounterSat, 67 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 359 SdHoareTripleChecker+Valid, 553 SdHoareTripleChecker+Invalid, 241 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 67 IncrementalHoareTripleChecker+Valid, 174 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.4s IncrementalHoareTripleChecker+Time [2023-12-16 08:27:21,842 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [359 Valid, 553 Invalid, 241 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [67 Valid, 174 Invalid, 0 Unknown, 0 Unchecked, 0.4s Time] [2023-12-16 08:27:21,855 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1139 states. [2023-12-16 08:27:21,872 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1139 to 1137. [2023-12-16 08:27:21,874 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1137 states, 1136 states have (on average 1.488556338028169) internal successors, (1691), 1136 states have internal predecessors, (1691), 0 states have call successors, (0), 0 states 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 08:27:21,877 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1137 states to 1137 states and 1691 transitions. [2023-12-16 08:27:21,877 INFO L78 Accepts]: Start accepts. Automaton has 1137 states and 1691 transitions. Word has length 189 [2023-12-16 08:27:21,877 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-16 08:27:21,877 INFO L495 AbstractCegarLoop]: Abstraction has 1137 states and 1691 transitions. [2023-12-16 08:27:21,878 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 61.333333333333336) internal successors, (184), 3 states have internal predecessors, (184), 0 states have call successors, (0), 0 states 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 08:27:21,879 INFO L276 IsEmpty]: Start isEmpty. Operand 1137 states and 1691 transitions. [2023-12-16 08:27:21,882 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 192 [2023-12-16 08:27:21,884 INFO L187 NwaCegarLoop]: Found error trace [2023-12-16 08:27:21,888 INFO L195 NwaCegarLoop]: trace histogram [4, 4, 4, 4, 4, 3, 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] [2023-12-16 08:27:21,894 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (6)] Forceful destruction successful, exit code 0 [2023-12-16 08:27:22,091 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 08:27:22,093 INFO L420 AbstractCegarLoop]: === Iteration 6 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-16 08:27:22,094 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-16 08:27:22,094 INFO L85 PathProgramCache]: Analyzing trace with hash 1839868616, now seen corresponding path program 2 times [2023-12-16 08:27:22,096 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-12-16 08:27:22,096 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [598389980] [2023-12-16 08:27:22,096 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2023-12-16 08:27:22,096 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 08:27:22,096 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2023-12-16 08:27:22,097 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 08:27:22,131 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 08:27:22,240 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2023-12-16 08:27:22,240 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2023-12-16 08:27:22,243 INFO L262 TraceCheckSpWp]: Trace formula consists of 314 conjuncts, 9 conjunts are in the unsatisfiable core [2023-12-16 08:27:22,246 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-16 08:27:24,026 INFO L134 CoverageAnalysis]: Checked inductivity of 40 backedges. 34 proven. 0 refuted. 0 times theorem prover too weak. 6 trivial. 0 not checked. [2023-12-16 08:27:24,026 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-12-16 08:27:24,026 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-12-16 08:27:24,027 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [598389980] [2023-12-16 08:27:24,027 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [598389980] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-16 08:27:24,027 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-16 08:27:24,027 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2023-12-16 08:27:24,027 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2054031250] [2023-12-16 08:27:24,027 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-16 08:27:24,028 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2023-12-16 08:27:24,028 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-12-16 08:27:24,028 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2023-12-16 08:27:24,029 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=18, Unknown=0, NotChecked=0, Total=30 [2023-12-16 08:27:24,029 INFO L87 Difference]: Start difference. First operand 1137 states and 1691 transitions. Second operand has 6 states, 6 states have (on average 31.0) internal successors, (186), 5 states have internal predecessors, (186), 0 states have call successors, (0), 0 states 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 08:27:26,963 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-16 08:27:26,963 INFO L93 Difference]: Finished difference Result 4576 states and 7380 transitions. [2023-12-16 08:27:26,964 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2023-12-16 08:27:26,964 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 31.0) internal successors, (186), 5 states have internal predecessors, (186), 0 states have call successors, (0), 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 191 [2023-12-16 08:27:26,964 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-16 08:27:26,976 INFO L225 Difference]: With dead ends: 4576 [2023-12-16 08:27:26,976 INFO L226 Difference]: Without dead ends: 3694 [2023-12-16 08:27:26,978 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 193 GetRequests, 186 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=30, Invalid=42, Unknown=0, NotChecked=0, Total=72 [2023-12-16 08:27:26,979 INFO L413 NwaCegarLoop]: 36 mSDtfsCounter, 1424 mSDsluCounter, 47 mSDsCounter, 0 mSdLazyCounter, 1923 mSolverCounterSat, 687 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1424 SdHoareTripleChecker+Valid, 83 SdHoareTripleChecker+Invalid, 2610 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 687 IncrementalHoareTripleChecker+Valid, 1923 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.8s IncrementalHoareTripleChecker+Time [2023-12-16 08:27:26,979 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1424 Valid, 83 Invalid, 2610 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [687 Valid, 1923 Invalid, 0 Unknown, 0 Unchecked, 2.8s Time] [2023-12-16 08:27:26,982 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3694 states. [2023-12-16 08:27:27,028 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3694 to 3599. [2023-12-16 08:27:27,032 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3599 states, 3598 states have (on average 1.2192884936075599) internal successors, (4387), 3598 states have internal predecessors, (4387), 0 states have call successors, (0), 0 states 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 08:27:27,041 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3599 states to 3599 states and 4387 transitions. [2023-12-16 08:27:27,041 INFO L78 Accepts]: Start accepts. Automaton has 3599 states and 4387 transitions. Word has length 191 [2023-12-16 08:27:27,041 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-16 08:27:27,041 INFO L495 AbstractCegarLoop]: Abstraction has 3599 states and 4387 transitions. [2023-12-16 08:27:27,042 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 31.0) internal successors, (186), 5 states have internal predecessors, (186), 0 states have call successors, (0), 0 states 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 08:27:27,042 INFO L276 IsEmpty]: Start isEmpty. Operand 3599 states and 4387 transitions. [2023-12-16 08:27:27,046 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 204 [2023-12-16 08:27:27,046 INFO L187 NwaCegarLoop]: Found error trace [2023-12-16 08:27:27,046 INFO L195 NwaCegarLoop]: trace histogram [5, 5, 5, 5, 5, 4, 3, 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] [2023-12-16 08:27:27,056 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 08:27:27,256 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 08:27:27,257 INFO L420 AbstractCegarLoop]: === Iteration 7 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-16 08:27:27,257 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-16 08:27:27,257 INFO L85 PathProgramCache]: Analyzing trace with hash -2057196333, now seen corresponding path program 1 times [2023-12-16 08:27:27,258 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-12-16 08:27:27,258 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [854574083] [2023-12-16 08:27:27,258 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-16 08:27:27,258 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 08:27:27,259 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2023-12-16 08:27:27,259 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 08:27:27,261 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 08:27:27,376 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 08:27:27,378 INFO L262 TraceCheckSpWp]: Trace formula consists of 347 conjuncts, 3 conjunts are in the unsatisfiable core [2023-12-16 08:27:27,380 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-16 08:27:27,428 INFO L134 CoverageAnalysis]: Checked inductivity of 73 backedges. 60 proven. 0 refuted. 0 times theorem prover too weak. 13 trivial. 0 not checked. [2023-12-16 08:27:27,429 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-12-16 08:27:27,429 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-12-16 08:27:27,429 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [854574083] [2023-12-16 08:27:27,429 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [854574083] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-16 08:27:27,429 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-16 08:27:27,429 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2023-12-16 08:27:27,429 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [305773581] [2023-12-16 08:27:27,429 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-16 08:27:27,430 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-12-16 08:27:27,430 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-12-16 08:27:27,431 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-12-16 08:27:27,431 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-12-16 08:27:27,431 INFO L87 Difference]: Start difference. First operand 3599 states and 4387 transitions. Second operand has 3 states, 3 states have (on average 64.0) internal successors, (192), 3 states have internal predecessors, (192), 0 states have call successors, (0), 0 states 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 08:27:28,365 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-16 08:27:28,366 INFO L93 Difference]: Finished difference Result 8576 states and 10714 transitions. [2023-12-16 08:27:28,366 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-12-16 08:27:28,366 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 64.0) internal successors, (192), 3 states have internal predecessors, (192), 0 states have call successors, (0), 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 203 [2023-12-16 08:27:28,366 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-16 08:27:28,380 INFO L225 Difference]: With dead ends: 8576 [2023-12-16 08:27:28,380 INFO L226 Difference]: Without dead ends: 5232 [2023-12-16 08:27:28,385 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 202 GetRequests, 201 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 08:27:28,387 INFO L413 NwaCegarLoop]: 293 mSDtfsCounter, 201 mSDsluCounter, 15 mSDsCounter, 0 mSdLazyCounter, 568 mSolverCounterSat, 124 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 201 SdHoareTripleChecker+Valid, 308 SdHoareTripleChecker+Invalid, 692 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 124 IncrementalHoareTripleChecker+Valid, 568 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.9s IncrementalHoareTripleChecker+Time [2023-12-16 08:27:28,387 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [201 Valid, 308 Invalid, 692 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [124 Valid, 568 Invalid, 0 Unknown, 0 Unchecked, 0.9s Time] [2023-12-16 08:27:28,392 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 5232 states. [2023-12-16 08:27:28,459 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 5232 to 5230. [2023-12-16 08:27:28,465 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5230 states, 5229 states have (on average 1.2061579651941097) internal successors, (6307), 5229 states have internal predecessors, (6307), 0 states have call successors, (0), 0 states 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 08:27:28,478 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5230 states to 5230 states and 6307 transitions. [2023-12-16 08:27:28,479 INFO L78 Accepts]: Start accepts. Automaton has 5230 states and 6307 transitions. Word has length 203 [2023-12-16 08:27:28,479 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-16 08:27:28,479 INFO L495 AbstractCegarLoop]: Abstraction has 5230 states and 6307 transitions. [2023-12-16 08:27:28,479 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 64.0) internal successors, (192), 3 states have internal predecessors, (192), 0 states have call successors, (0), 0 states 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 08:27:28,479 INFO L276 IsEmpty]: Start isEmpty. Operand 5230 states and 6307 transitions. [2023-12-16 08:27:28,484 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 205 [2023-12-16 08:27:28,485 INFO L187 NwaCegarLoop]: Found error trace [2023-12-16 08:27:28,485 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 08:27:28,491 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 08:27:28,688 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 08:27:28,689 INFO L420 AbstractCegarLoop]: === Iteration 8 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-16 08:27:28,689 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-16 08:27:28,689 INFO L85 PathProgramCache]: Analyzing trace with hash -364951150, now seen corresponding path program 1 times [2023-12-16 08:27:28,691 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-12-16 08:27:28,691 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [2059795893] [2023-12-16 08:27:28,691 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-16 08:27:28,691 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 08:27:28,691 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2023-12-16 08:27:28,692 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 08:27:28,724 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (9)] Waiting until timeout for monitored process [2023-12-16 08:27:28,826 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 08:27:28,829 INFO L262 TraceCheckSpWp]: Trace formula consists of 300 conjuncts, 3 conjunts are in the unsatisfiable core [2023-12-16 08:27:28,831 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-16 08:27:28,912 INFO L134 CoverageAnalysis]: Checked inductivity of 40 backedges. 33 proven. 0 refuted. 0 times theorem prover too weak. 7 trivial. 0 not checked. [2023-12-16 08:27:28,913 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-12-16 08:27:28,913 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-12-16 08:27:28,913 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [2059795893] [2023-12-16 08:27:28,913 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [2059795893] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-16 08:27:28,913 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-16 08:27:28,913 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2023-12-16 08:27:28,916 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [226589491] [2023-12-16 08:27:28,916 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-16 08:27:28,917 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-12-16 08:27:28,917 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-12-16 08:27:28,917 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-12-16 08:27:28,918 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-12-16 08:27:28,918 INFO L87 Difference]: Start difference. First operand 5230 states and 6307 transitions. Second operand has 3 states, 3 states have (on average 66.0) internal successors, (198), 2 states have internal predecessors, (198), 0 states have call successors, (0), 0 states 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 08:27:29,849 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-16 08:27:29,849 INFO L93 Difference]: Finished difference Result 10815 states and 13226 transitions. [2023-12-16 08:27:29,849 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-12-16 08:27:29,850 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 66.0) internal successors, (198), 2 states have internal predecessors, (198), 0 states have call successors, (0), 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 204 [2023-12-16 08:27:29,850 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-16 08:27:29,861 INFO L225 Difference]: With dead ends: 10815 [2023-12-16 08:27:29,861 INFO L226 Difference]: Without dead ends: 5840 [2023-12-16 08:27:29,867 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 203 GetRequests, 202 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 08:27:29,868 INFO L413 NwaCegarLoop]: 205 mSDtfsCounter, 186 mSDsluCounter, 19 mSDsCounter, 0 mSdLazyCounter, 573 mSolverCounterSat, 94 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 186 SdHoareTripleChecker+Valid, 224 SdHoareTripleChecker+Invalid, 667 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 94 IncrementalHoareTripleChecker+Valid, 573 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.9s IncrementalHoareTripleChecker+Time [2023-12-16 08:27:29,868 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [186 Valid, 224 Invalid, 667 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [94 Valid, 573 Invalid, 0 Unknown, 0 Unchecked, 0.9s Time] [2023-12-16 08:27:29,873 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 5840 states. [2023-12-16 08:27:29,938 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 5840 to 5839. [2023-12-16 08:27:29,946 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5839 states, 5838 states have (on average 1.194929770469339) internal successors, (6976), 5838 states have internal predecessors, (6976), 0 states have call successors, (0), 0 states 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 08:27:29,959 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5839 states to 5839 states and 6976 transitions. [2023-12-16 08:27:29,959 INFO L78 Accepts]: Start accepts. Automaton has 5839 states and 6976 transitions. Word has length 204 [2023-12-16 08:27:29,959 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-16 08:27:29,959 INFO L495 AbstractCegarLoop]: Abstraction has 5839 states and 6976 transitions. [2023-12-16 08:27:29,960 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 66.0) internal successors, (198), 2 states have internal predecessors, (198), 0 states have call successors, (0), 0 states 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 08:27:29,960 INFO L276 IsEmpty]: Start isEmpty. Operand 5839 states and 6976 transitions. [2023-12-16 08:27:29,967 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 246 [2023-12-16 08:27:29,967 INFO L187 NwaCegarLoop]: Found error trace [2023-12-16 08:27:29,967 INFO L195 NwaCegarLoop]: trace histogram [5, 5, 5, 5, 5, 4, 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 08:27:29,975 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 08:27:30,170 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 08:27:30,170 INFO L420 AbstractCegarLoop]: === Iteration 9 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-16 08:27:30,171 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-16 08:27:30,171 INFO L85 PathProgramCache]: Analyzing trace with hash 395516010, now seen corresponding path program 1 times [2023-12-16 08:27:30,173 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-12-16 08:27:30,173 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [829245928] [2023-12-16 08:27:30,173 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-16 08:27:30,173 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 08:27:30,173 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2023-12-16 08:27:30,174 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 08:27:30,175 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 (10)] Waiting until timeout for monitored process [2023-12-16 08:27:30,298 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 08:27:30,300 INFO L262 TraceCheckSpWp]: Trace formula consists of 387 conjuncts, 3 conjunts are in the unsatisfiable core [2023-12-16 08:27:30,302 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-16 08:27:30,452 INFO L134 CoverageAnalysis]: Checked inductivity of 115 backedges. 102 proven. 0 refuted. 0 times theorem prover too weak. 13 trivial. 0 not checked. [2023-12-16 08:27:30,452 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-12-16 08:27:30,452 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-12-16 08:27:30,452 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [829245928] [2023-12-16 08:27:30,452 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [829245928] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-16 08:27:30,452 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-16 08:27:30,452 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2023-12-16 08:27:30,453 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [367635785] [2023-12-16 08:27:30,453 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-16 08:27:30,453 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-12-16 08:27:30,453 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-12-16 08:27:30,454 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-12-16 08:27:30,454 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-12-16 08:27:30,454 INFO L87 Difference]: Start difference. First operand 5839 states and 6976 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 08:27:31,326 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-16 08:27:31,326 INFO L93 Difference]: Finished difference Result 12855 states and 15413 transitions. [2023-12-16 08:27:31,326 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-12-16 08:27:31,327 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 245 [2023-12-16 08:27:31,327 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-16 08:27:31,341 INFO L225 Difference]: With dead ends: 12855 [2023-12-16 08:27:31,342 INFO L226 Difference]: Without dead ends: 7271 [2023-12-16 08:27:31,348 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 244 GetRequests, 243 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 08:27:31,348 INFO L413 NwaCegarLoop]: 265 mSDtfsCounter, 161 mSDsluCounter, 13 mSDsCounter, 0 mSdLazyCounter, 532 mSolverCounterSat, 138 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 161 SdHoareTripleChecker+Valid, 278 SdHoareTripleChecker+Invalid, 670 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 138 IncrementalHoareTripleChecker+Valid, 532 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.8s IncrementalHoareTripleChecker+Time [2023-12-16 08:27:31,349 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [161 Valid, 278 Invalid, 670 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [138 Valid, 532 Invalid, 0 Unknown, 0 Unchecked, 0.8s Time] [2023-12-16 08:27:31,356 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 7271 states. [2023-12-16 08:27:31,444 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 7271 to 7264. [2023-12-16 08:27:31,455 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 7264 states, 7263 states have (on average 1.1760980311166185) internal successors, (8542), 7263 states have internal predecessors, (8542), 0 states have call successors, (0), 0 states 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 08:27:31,474 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7264 states to 7264 states and 8542 transitions. [2023-12-16 08:27:31,475 INFO L78 Accepts]: Start accepts. Automaton has 7264 states and 8542 transitions. Word has length 245 [2023-12-16 08:27:31,475 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-16 08:27:31,475 INFO L495 AbstractCegarLoop]: Abstraction has 7264 states and 8542 transitions. [2023-12-16 08:27:31,475 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 08:27:31,475 INFO L276 IsEmpty]: Start isEmpty. Operand 7264 states and 8542 transitions. [2023-12-16 08:27:31,484 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 262 [2023-12-16 08:27:31,485 INFO L187 NwaCegarLoop]: Found error trace [2023-12-16 08:27:31,485 INFO L195 NwaCegarLoop]: trace histogram [4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 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] [2023-12-16 08:27:31,491 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 08:27:31,688 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 08:27:31,689 INFO L420 AbstractCegarLoop]: === Iteration 10 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-16 08:27:31,689 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-16 08:27:31,689 INFO L85 PathProgramCache]: Analyzing trace with hash -1797895867, now seen corresponding path program 1 times [2023-12-16 08:27:31,691 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-12-16 08:27:31,691 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1371459631] [2023-12-16 08:27:31,691 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-16 08:27:31,691 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 08:27:31,691 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2023-12-16 08:27:31,692 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 08:27:31,693 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 08:27:31,836 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 08:27:31,838 INFO L262 TraceCheckSpWp]: Trace formula consists of 382 conjuncts, 3 conjunts are in the unsatisfiable core [2023-12-16 08:27:31,840 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-16 08:27:32,001 INFO L134 CoverageAnalysis]: Checked inductivity of 134 backedges. 127 proven. 0 refuted. 0 times theorem prover too weak. 7 trivial. 0 not checked. [2023-12-16 08:27:32,002 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-12-16 08:27:32,002 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-12-16 08:27:32,002 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1371459631] [2023-12-16 08:27:32,002 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1371459631] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-16 08:27:32,002 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-16 08:27:32,002 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2023-12-16 08:27:32,002 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1178933457] [2023-12-16 08:27:32,002 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-16 08:27:32,003 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2023-12-16 08:27:32,003 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-12-16 08:27:32,003 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2023-12-16 08:27:32,003 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2023-12-16 08:27:32,004 INFO L87 Difference]: Start difference. First operand 7264 states and 8542 transitions. Second operand has 4 states, 4 states have (on average 63.75) internal successors, (255), 3 states have internal predecessors, (255), 0 states have call successors, (0), 0 states 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 08:27:33,350 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-16 08:27:33,351 INFO L93 Difference]: Finished difference Result 14285 states and 16841 transitions. [2023-12-16 08:27:33,351 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2023-12-16 08:27:33,351 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 63.75) internal successors, (255), 3 states have internal predecessors, (255), 0 states have call successors, (0), 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 261 [2023-12-16 08:27:33,351 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-16 08:27:33,367 INFO L225 Difference]: With dead ends: 14285 [2023-12-16 08:27:33,367 INFO L226 Difference]: Without dead ends: 7276 [2023-12-16 08:27:33,373 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 260 GetRequests, 258 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 08:27:33,374 INFO L413 NwaCegarLoop]: 86 mSDtfsCounter, 466 mSDsluCounter, 18 mSDsCounter, 0 mSdLazyCounter, 915 mSolverCounterSat, 334 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 466 SdHoareTripleChecker+Valid, 104 SdHoareTripleChecker+Invalid, 1249 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 334 IncrementalHoareTripleChecker+Valid, 915 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.3s IncrementalHoareTripleChecker+Time [2023-12-16 08:27:33,374 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [466 Valid, 104 Invalid, 1249 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [334 Valid, 915 Invalid, 0 Unknown, 0 Unchecked, 1.3s Time] [2023-12-16 08:27:33,379 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 7276 states. [2023-12-16 08:27:33,465 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 7276 to 6858. [2023-12-16 08:27:33,473 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 6858 states, 6857 states have (on average 1.1783578824558845) internal successors, (8080), 6857 states have internal predecessors, (8080), 0 states have call successors, (0), 0 states 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 08:27:33,482 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6858 states to 6858 states and 8080 transitions. [2023-12-16 08:27:33,483 INFO L78 Accepts]: Start accepts. Automaton has 6858 states and 8080 transitions. Word has length 261 [2023-12-16 08:27:33,483 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-16 08:27:33,483 INFO L495 AbstractCegarLoop]: Abstraction has 6858 states and 8080 transitions. [2023-12-16 08:27:33,483 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 63.75) internal successors, (255), 3 states have internal predecessors, (255), 0 states have call successors, (0), 0 states 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 08:27:33,483 INFO L276 IsEmpty]: Start isEmpty. Operand 6858 states and 8080 transitions. [2023-12-16 08:27:33,490 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 270 [2023-12-16 08:27:33,490 INFO L187 NwaCegarLoop]: Found error trace [2023-12-16 08:27:33,490 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, 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] [2023-12-16 08:27:33,493 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 08:27:33,693 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 08:27:33,694 INFO L420 AbstractCegarLoop]: === Iteration 11 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-16 08:27:33,694 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-16 08:27:33,694 INFO L85 PathProgramCache]: Analyzing trace with hash 1094149345, now seen corresponding path program 1 times [2023-12-16 08:27:33,696 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-12-16 08:27:33,696 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [977356931] [2023-12-16 08:27:33,696 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-16 08:27:33,696 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 08:27:33,696 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2023-12-16 08:27:33,697 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 08:27:33,698 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 08:27:33,828 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 08:27:33,830 INFO L262 TraceCheckSpWp]: Trace formula consists of 409 conjuncts, 2 conjunts are in the unsatisfiable core [2023-12-16 08:27:33,833 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-16 08:27:33,873 INFO L134 CoverageAnalysis]: Checked inductivity of 163 backedges. 102 proven. 0 refuted. 0 times theorem prover too weak. 61 trivial. 0 not checked. [2023-12-16 08:27:33,873 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-12-16 08:27:33,873 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-12-16 08:27:33,873 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [977356931] [2023-12-16 08:27:33,873 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [977356931] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-16 08:27:33,873 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-16 08:27:33,873 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2023-12-16 08:27:33,873 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [152239966] [2023-12-16 08:27:33,874 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-16 08:27:33,874 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-12-16 08:27:33,874 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-12-16 08:27:33,874 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-12-16 08:27:33,875 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-12-16 08:27:33,875 INFO L87 Difference]: Start difference. First operand 6858 states and 8080 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 08:27:34,761 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-16 08:27:34,761 INFO L93 Difference]: Finished difference Result 17322 states and 20848 transitions. [2023-12-16 08:27:34,762 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-12-16 08:27:34,768 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 269 [2023-12-16 08:27:34,769 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-16 08:27:34,782 INFO L225 Difference]: With dead ends: 17322 [2023-12-16 08:27:34,782 INFO L226 Difference]: Without dead ends: 10301 [2023-12-16 08:27:34,788 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 268 GetRequests, 267 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 08:27:34,789 INFO L413 NwaCegarLoop]: 238 mSDtfsCounter, 218 mSDsluCounter, 14 mSDsCounter, 0 mSdLazyCounter, 539 mSolverCounterSat, 135 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 218 SdHoareTripleChecker+Valid, 252 SdHoareTripleChecker+Invalid, 674 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 135 IncrementalHoareTripleChecker+Valid, 539 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.8s IncrementalHoareTripleChecker+Time [2023-12-16 08:27:34,789 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [218 Valid, 252 Invalid, 674 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [135 Valid, 539 Invalid, 0 Unknown, 0 Unchecked, 0.8s Time] [2023-12-16 08:27:34,795 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 10301 states. [2023-12-16 08:27:34,883 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 10301 to 10298. [2023-12-16 08:27:34,895 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 10298 states, 10297 states have (on average 1.1259590171894727) internal successors, (11594), 10297 states have internal predecessors, (11594), 0 states have call successors, (0), 0 states 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 08:27:34,908 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 10298 states to 10298 states and 11594 transitions. [2023-12-16 08:27:34,909 INFO L78 Accepts]: Start accepts. Automaton has 10298 states and 11594 transitions. Word has length 269 [2023-12-16 08:27:34,909 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-16 08:27:34,909 INFO L495 AbstractCegarLoop]: Abstraction has 10298 states and 11594 transitions. [2023-12-16 08:27:34,909 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 08:27:34,909 INFO L276 IsEmpty]: Start isEmpty. Operand 10298 states and 11594 transitions. [2023-12-16 08:27:34,919 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 300 [2023-12-16 08:27:34,919 INFO L187 NwaCegarLoop]: Found error trace [2023-12-16 08:27:34,920 INFO L195 NwaCegarLoop]: trace histogram [4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 08:27:34,923 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (12)] Forceful destruction successful, exit code 0 [2023-12-16 08:27:35,123 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 08:27:35,123 INFO L420 AbstractCegarLoop]: === Iteration 12 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-16 08:27:35,124 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-16 08:27:35,124 INFO L85 PathProgramCache]: Analyzing trace with hash -1073965838, now seen corresponding path program 1 times [2023-12-16 08:27:35,125 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-12-16 08:27:35,125 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [2082829749] [2023-12-16 08:27:35,126 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-16 08:27:35,126 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 08:27:35,126 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2023-12-16 08:27:35,127 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 08:27:35,128 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 08:27:35,277 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 08:27:35,280 INFO L262 TraceCheckSpWp]: Trace formula consists of 422 conjuncts, 2 conjunts are in the unsatisfiable core [2023-12-16 08:27:35,283 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-16 08:27:35,308 INFO L134 CoverageAnalysis]: Checked inductivity of 176 backedges. 157 proven. 0 refuted. 0 times theorem prover too weak. 19 trivial. 0 not checked. [2023-12-16 08:27:35,308 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-12-16 08:27:35,308 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-12-16 08:27:35,309 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [2082829749] [2023-12-16 08:27:35,309 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [2082829749] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-16 08:27:35,309 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-16 08:27:35,309 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2023-12-16 08:27:35,309 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1767185155] [2023-12-16 08:27:35,309 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-16 08:27:35,309 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-12-16 08:27:35,309 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-12-16 08:27:35,310 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-12-16 08:27:35,310 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-12-16 08:27:35,310 INFO L87 Difference]: Start difference. First operand 10298 states and 11594 transitions. Second operand has 3 states, 3 states have (on average 93.66666666666667) internal successors, (281), 3 states have internal predecessors, (281), 0 states have call successors, (0), 0 states 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 08:27:36,248 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-16 08:27:36,248 INFO L93 Difference]: Finished difference Result 25228 states and 28716 transitions. [2023-12-16 08:27:36,249 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-12-16 08:27:36,249 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 93.66666666666667) internal successors, (281), 3 states have internal predecessors, (281), 0 states have call successors, (0), 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 299 [2023-12-16 08:27:36,249 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-16 08:27:36,271 INFO L225 Difference]: With dead ends: 25228 [2023-12-16 08:27:36,271 INFO L226 Difference]: Without dead ends: 15173 [2023-12-16 08:27:36,282 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 298 GetRequests, 297 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 08:27:36,283 INFO L413 NwaCegarLoop]: 235 mSDtfsCounter, 226 mSDsluCounter, 14 mSDsCounter, 0 mSdLazyCounter, 504 mSolverCounterSat, 102 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 226 SdHoareTripleChecker+Valid, 249 SdHoareTripleChecker+Invalid, 606 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 102 IncrementalHoareTripleChecker+Valid, 504 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.9s IncrementalHoareTripleChecker+Time [2023-12-16 08:27:36,284 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [226 Valid, 249 Invalid, 606 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [102 Valid, 504 Invalid, 0 Unknown, 0 Unchecked, 0.9s Time] [2023-12-16 08:27:36,296 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 15173 states. [2023-12-16 08:27:36,426 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 15173 to 15171. [2023-12-16 08:27:36,441 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 15171 states, 15170 states have (on average 1.1168094924192484) internal successors, (16942), 15170 states have internal predecessors, (16942), 0 states have call successors, (0), 0 states 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 08:27:36,461 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 15171 states to 15171 states and 16942 transitions. [2023-12-16 08:27:36,462 INFO L78 Accepts]: Start accepts. Automaton has 15171 states and 16942 transitions. Word has length 299 [2023-12-16 08:27:36,462 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-16 08:27:36,462 INFO L495 AbstractCegarLoop]: Abstraction has 15171 states and 16942 transitions. [2023-12-16 08:27:36,462 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 93.66666666666667) internal successors, (281), 3 states have internal predecessors, (281), 0 states have call successors, (0), 0 states 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 08:27:36,462 INFO L276 IsEmpty]: Start isEmpty. Operand 15171 states and 16942 transitions. [2023-12-16 08:27:36,479 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 319 [2023-12-16 08:27:36,479 INFO L187 NwaCegarLoop]: Found error trace [2023-12-16 08:27:36,479 INFO L195 NwaCegarLoop]: trace histogram [6, 6, 5, 5, 5, 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, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-16 08:27:36,487 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 08:27:36,683 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 08:27:36,683 INFO L420 AbstractCegarLoop]: === Iteration 13 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-16 08:27:36,684 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-16 08:27:36,684 INFO L85 PathProgramCache]: Analyzing trace with hash 1551912188, now seen corresponding path program 1 times [2023-12-16 08:27:36,685 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-12-16 08:27:36,685 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [213446283] [2023-12-16 08:27:36,685 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-16 08:27:36,686 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 08:27:36,686 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2023-12-16 08:27:36,686 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 08:27:36,687 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 08:27:36,850 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 08:27:36,852 INFO L262 TraceCheckSpWp]: Trace formula consists of 473 conjuncts, 3 conjunts are in the unsatisfiable core [2023-12-16 08:27:36,855 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-16 08:27:36,988 INFO L134 CoverageAnalysis]: Checked inductivity of 224 backedges. 158 proven. 0 refuted. 0 times theorem prover too weak. 66 trivial. 0 not checked. [2023-12-16 08:27:36,988 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-12-16 08:27:36,988 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-12-16 08:27:36,988 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [213446283] [2023-12-16 08:27:36,988 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [213446283] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-16 08:27:36,988 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-16 08:27:36,988 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2023-12-16 08:27:36,989 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [431380632] [2023-12-16 08:27:36,989 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-16 08:27:36,989 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2023-12-16 08:27:36,989 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-12-16 08:27:36,990 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2023-12-16 08:27:36,990 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2023-12-16 08:27:36,990 INFO L87 Difference]: Start difference. First operand 15171 states and 16942 transitions. Second operand has 4 states, 4 states have (on average 68.5) internal successors, (274), 3 states have internal predecessors, (274), 0 states have call successors, (0), 0 states 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 08:27:38,234 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-16 08:27:38,234 INFO L93 Difference]: Finished difference Result 34176 states and 38509 transitions. [2023-12-16 08:27:38,235 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2023-12-16 08:27:38,235 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 68.5) internal successors, (274), 3 states have internal predecessors, (274), 0 states have call successors, (0), 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 318 [2023-12-16 08:27:38,235 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-16 08:27:38,259 INFO L225 Difference]: With dead ends: 34176 [2023-12-16 08:27:38,259 INFO L226 Difference]: Without dead ends: 19248 [2023-12-16 08:27:38,269 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 317 GetRequests, 315 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 08:27:38,270 INFO L413 NwaCegarLoop]: 90 mSDtfsCounter, 426 mSDsluCounter, 36 mSDsCounter, 0 mSdLazyCounter, 836 mSolverCounterSat, 101 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.9s Time, 0 mProtectedPredicate, 0 mProtectedAction, 426 SdHoareTripleChecker+Valid, 126 SdHoareTripleChecker+Invalid, 937 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 101 IncrementalHoareTripleChecker+Valid, 836 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.1s IncrementalHoareTripleChecker+Time [2023-12-16 08:27:38,270 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [426 Valid, 126 Invalid, 937 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [101 Valid, 836 Invalid, 0 Unknown, 0 Unchecked, 1.1s Time] [2023-12-16 08:27:38,287 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 19248 states. [2023-12-16 08:27:38,468 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 19248 to 19235. [2023-12-16 08:27:38,487 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 19235 states, 19234 states have (on average 1.1236352292814806) internal successors, (21612), 19234 states have internal predecessors, (21612), 0 states have call successors, (0), 0 states 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 08:27:38,509 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 19235 states to 19235 states and 21612 transitions. [2023-12-16 08:27:38,510 INFO L78 Accepts]: Start accepts. Automaton has 19235 states and 21612 transitions. Word has length 318 [2023-12-16 08:27:38,510 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-16 08:27:38,510 INFO L495 AbstractCegarLoop]: Abstraction has 19235 states and 21612 transitions. [2023-12-16 08:27:38,510 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 68.5) internal successors, (274), 3 states have internal predecessors, (274), 0 states have call successors, (0), 0 states 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 08:27:38,510 INFO L276 IsEmpty]: Start isEmpty. Operand 19235 states and 21612 transitions. [2023-12-16 08:27:38,528 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 333 [2023-12-16 08:27:38,528 INFO L187 NwaCegarLoop]: Found error trace [2023-12-16 08:27:38,528 INFO L195 NwaCegarLoop]: trace histogram [4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-16 08:27:38,535 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 08:27:38,731 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 08:27:38,732 INFO L420 AbstractCegarLoop]: === Iteration 14 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-16 08:27:38,732 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-16 08:27:38,733 INFO L85 PathProgramCache]: Analyzing trace with hash -818627308, now seen corresponding path program 1 times [2023-12-16 08:27:38,734 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-12-16 08:27:38,734 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1015570705] [2023-12-16 08:27:38,734 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-16 08:27:38,735 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 08:27:38,735 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2023-12-16 08:27:38,736 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 08:27:38,737 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 08:27:38,901 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 08:27:38,903 INFO L262 TraceCheckSpWp]: Trace formula consists of 449 conjuncts, 2 conjunts are in the unsatisfiable core [2023-12-16 08:27:38,906 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-16 08:27:39,067 INFO L134 CoverageAnalysis]: Checked inductivity of 228 backedges. 168 proven. 0 refuted. 0 times theorem prover too weak. 60 trivial. 0 not checked. [2023-12-16 08:27:39,067 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-12-16 08:27:39,067 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-12-16 08:27:39,067 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1015570705] [2023-12-16 08:27:39,067 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1015570705] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-16 08:27:39,067 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-16 08:27:39,067 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2023-12-16 08:27:39,068 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [317239192] [2023-12-16 08:27:39,068 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-16 08:27:39,068 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-12-16 08:27:39,068 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-12-16 08:27:39,069 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-12-16 08:27:39,069 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-12-16 08:27:39,069 INFO L87 Difference]: Start difference. First operand 19235 states and 21612 transitions. Second operand has 3 states, 3 states have (on average 91.33333333333333) internal successors, (274), 2 states have internal predecessors, (274), 0 states have call successors, (0), 0 states 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 08:27:39,876 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-16 08:27:39,876 INFO L93 Difference]: Finished difference Result 38231 states and 42985 transitions. [2023-12-16 08:27:39,877 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-12-16 08:27:39,877 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 91.33333333333333) internal successors, (274), 2 states have internal predecessors, (274), 0 states have call successors, (0), 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 332 [2023-12-16 08:27:39,877 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-16 08:27:39,903 INFO L225 Difference]: With dead ends: 38231 [2023-12-16 08:27:39,903 INFO L226 Difference]: Without dead ends: 19239 [2023-12-16 08:27:39,920 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 331 GetRequests, 330 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 08:27:39,920 INFO L413 NwaCegarLoop]: 151 mSDtfsCounter, 138 mSDsluCounter, 16 mSDsCounter, 0 mSdLazyCounter, 522 mSolverCounterSat, 56 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 138 SdHoareTripleChecker+Valid, 167 SdHoareTripleChecker+Invalid, 578 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 56 IncrementalHoareTripleChecker+Valid, 522 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.7s IncrementalHoareTripleChecker+Time [2023-12-16 08:27:39,921 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [138 Valid, 167 Invalid, 578 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [56 Valid, 522 Invalid, 0 Unknown, 0 Unchecked, 0.7s Time] [2023-12-16 08:27:39,933 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 19239 states. [2023-12-16 08:27:40,140 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 19239 to 19235. [2023-12-16 08:27:40,155 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 19235 states, 19234 states have (on average 1.105698242695227) internal successors, (21267), 19234 states have internal predecessors, (21267), 0 states have call successors, (0), 0 states 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 08:27:40,180 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 19235 states to 19235 states and 21267 transitions. [2023-12-16 08:27:40,181 INFO L78 Accepts]: Start accepts. Automaton has 19235 states and 21267 transitions. Word has length 332 [2023-12-16 08:27:40,181 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-16 08:27:40,181 INFO L495 AbstractCegarLoop]: Abstraction has 19235 states and 21267 transitions. [2023-12-16 08:27:40,181 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 91.33333333333333) internal successors, (274), 2 states have internal predecessors, (274), 0 states have call successors, (0), 0 states 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 08:27:40,181 INFO L276 IsEmpty]: Start isEmpty. Operand 19235 states and 21267 transitions. [2023-12-16 08:27:40,195 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 345 [2023-12-16 08:27:40,195 INFO L187 NwaCegarLoop]: Found error trace [2023-12-16 08:27:40,196 INFO L195 NwaCegarLoop]: trace histogram [4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 08:27:40,201 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (15)] Forceful destruction successful, exit code 0 [2023-12-16 08:27:40,398 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 08:27:40,399 INFO L420 AbstractCegarLoop]: === Iteration 15 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-16 08:27:40,399 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-16 08:27:40,399 INFO L85 PathProgramCache]: Analyzing trace with hash 762917325, now seen corresponding path program 1 times [2023-12-16 08:27:40,401 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-12-16 08:27:40,401 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [112687699] [2023-12-16 08:27:40,401 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-16 08:27:40,401 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 08:27:40,401 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2023-12-16 08:27:40,402 INFO L229 MonitoredProcess]: Starting monitored process 16 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2023-12-16 08:27:40,404 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (16)] Waiting until timeout for monitored process [2023-12-16 08:27:40,579 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 08:27:40,582 INFO L262 TraceCheckSpWp]: Trace formula consists of 463 conjuncts, 3 conjunts are in the unsatisfiable core [2023-12-16 08:27:40,585 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-16 08:27:40,829 INFO L134 CoverageAnalysis]: Checked inductivity of 275 backedges. 172 proven. 79 refuted. 0 times theorem prover too weak. 24 trivial. 0 not checked. [2023-12-16 08:27:40,829 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-12-16 08:27:41,092 INFO L134 CoverageAnalysis]: Checked inductivity of 275 backedges. 172 proven. 79 refuted. 0 times theorem prover too weak. 24 trivial. 0 not checked. [2023-12-16 08:27:41,092 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-12-16 08:27:41,092 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [112687699] [2023-12-16 08:27:41,092 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [112687699] provided 0 perfect and 2 imperfect interpolant sequences [2023-12-16 08:27:41,092 INFO L185 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2023-12-16 08:27:41,092 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [4, 4] total 6 [2023-12-16 08:27:41,093 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [980552483] [2023-12-16 08:27:41,093 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2023-12-16 08:27:41,093 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2023-12-16 08:27:41,093 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-12-16 08:27:41,094 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2023-12-16 08:27:41,094 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2023-12-16 08:27:41,094 INFO L87 Difference]: Start difference. First operand 19235 states and 21267 transitions. Second operand has 6 states, 6 states have (on average 91.0) internal successors, (546), 6 states have internal predecessors, (546), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Received shutdown request... [2023-12-16 08:27:42,965 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2023-12-16 08:27:42,965 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 694 GetRequests, 686 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 7 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=36, Invalid=54, Unknown=0, NotChecked=0, Total=90 [2023-12-16 08:27:42,966 INFO L413 NwaCegarLoop]: 45 mSDtfsCounter, 836 mSDsluCounter, 226 mSDsCounter, 0 mSdLazyCounter, 1305 mSolverCounterSat, 216 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 836 SdHoareTripleChecker+Valid, 271 SdHoareTripleChecker+Invalid, 1521 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 216 IncrementalHoareTripleChecker+Valid, 1305 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.7s IncrementalHoareTripleChecker+Time [2023-12-16 08:27:42,966 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [836 Valid, 271 Invalid, 1521 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [216 Valid, 1305 Invalid, 0 Unknown, 0 Unchecked, 1.7s Time] [2023-12-16 08:27:42,967 INFO L805 garLoopResultBuilder]: Registering result TIMEOUT for location ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION (0 of 1 remaining) [2023-12-16 08:27:42,972 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 (16)] Ended with exit code 0 [2023-12-16 08:27:42,988 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 (16)] Timeout while monitored process is still running, waiting 1000 ms for graceful end [2023-12-16 08:27:42,988 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 08:27:43,167 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 16 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2023-12-16 08:27:43,169 WARN L619 AbstractCegarLoop]: Verification canceled: while NwaCegarLoop was constructing difference of abstraction (19235states) and FLOYD_HOARE automaton (currently 10 states, 6 states before enhancement),while ReachableStatesComputation was computing reachable states (24826 states constructed, input type IntersectNwa). [2023-12-16 08:27:43,173 INFO L445 BasicCegarLoop]: Path program histogram: [2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-16 08:27:43,175 INFO L179 ceAbstractionStarter]: Computing trace abstraction results [2023-12-16 08:27:43,178 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 16.12 08:27:43 BoogieIcfgContainer [2023-12-16 08:27:43,178 INFO L131 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2023-12-16 08:27:43,178 INFO L158 Benchmark]: Toolchain (without parser) took 62456.49ms. Allocated memory was 291.5MB in the beginning and 792.7MB in the end (delta: 501.2MB). Free memory was 237.0MB in the beginning and 564.8MB in the end (delta: -327.7MB). Peak memory consumption was 174.3MB. Max. memory is 8.0GB. [2023-12-16 08:27:43,178 INFO L158 Benchmark]: CDTParser took 0.13ms. Allocated memory is still 196.1MB. Free memory is still 147.9MB. There was no memory consumed. Max. memory is 8.0GB. [2023-12-16 08:27:43,179 INFO L158 Benchmark]: CACSL2BoogieTranslator took 824.55ms. Allocated memory is still 291.5MB. Free memory was 237.0MB in the beginning and 221.1MB in the end (delta: 15.9MB). Peak memory consumption was 37.5MB. Max. memory is 8.0GB. [2023-12-16 08:27:43,179 INFO L158 Benchmark]: Boogie Procedure Inliner took 138.42ms. Allocated memory is still 291.5MB. Free memory was 221.1MB in the beginning and 205.9MB in the end (delta: 15.2MB). Peak memory consumption was 15.7MB. Max. memory is 8.0GB. [2023-12-16 08:27:43,179 INFO L158 Benchmark]: Boogie Preprocessor took 175.70ms. Allocated memory is still 291.5MB. Free memory was 205.9MB in the beginning and 192.8MB in the end (delta: 13.1MB). Peak memory consumption was 12.6MB. Max. memory is 8.0GB. [2023-12-16 08:27:43,179 INFO L158 Benchmark]: RCFGBuilder took 2240.12ms. Allocated memory was 291.5MB in the beginning and 381.7MB in the end (delta: 90.2MB). Free memory was 192.8MB in the beginning and 215.2MB in the end (delta: -22.5MB). Peak memory consumption was 77.7MB. Max. memory is 8.0GB. [2023-12-16 08:27:43,180 INFO L158 Benchmark]: TraceAbstraction took 59070.46ms. Allocated memory was 381.7MB in the beginning and 792.7MB in the end (delta: 411.0MB). Free memory was 214.2MB in the beginning and 564.8MB in the end (delta: -350.6MB). Peak memory consumption was 60.2MB. Max. memory is 8.0GB. [2023-12-16 08:27:43,181 INFO L338 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.13ms. Allocated memory is still 196.1MB. Free memory is still 147.9MB. There was no memory consumed. Max. memory is 8.0GB. * CACSL2BoogieTranslator took 824.55ms. Allocated memory is still 291.5MB. Free memory was 237.0MB in the beginning and 221.1MB in the end (delta: 15.9MB). Peak memory consumption was 37.5MB. Max. memory is 8.0GB. * Boogie Procedure Inliner took 138.42ms. Allocated memory is still 291.5MB. Free memory was 221.1MB in the beginning and 205.9MB in the end (delta: 15.2MB). Peak memory consumption was 15.7MB. Max. memory is 8.0GB. * Boogie Preprocessor took 175.70ms. Allocated memory is still 291.5MB. Free memory was 205.9MB in the beginning and 192.8MB in the end (delta: 13.1MB). Peak memory consumption was 12.6MB. Max. memory is 8.0GB. * RCFGBuilder took 2240.12ms. Allocated memory was 291.5MB in the beginning and 381.7MB in the end (delta: 90.2MB). Free memory was 192.8MB in the beginning and 215.2MB in the end (delta: -22.5MB). Peak memory consumption was 77.7MB. Max. memory is 8.0GB. * TraceAbstraction took 59070.46ms. Allocated memory was 381.7MB in the beginning and 792.7MB in the end (delta: 411.0MB). Free memory was 214.2MB in the beginning and 564.8MB in the end (delta: -350.6MB). Peak memory consumption was 60.2MB. 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: 1555]: Timeout (TraceAbstraction) Unable to prove that a call to reach_error is unreachable (line 1555). Cancelled while NwaCegarLoop was constructing difference of abstraction (19235states) and FLOYD_HOARE automaton (currently 10 states, 6 states before enhancement),while ReachableStatesComputation was computing reachable states (24826 states constructed, input type IntersectNwa). - StatisticsResult: Ultimate Automizer benchmark data CFG has 1 procedures, 240 locations, 1 error locations. Started 1 CEGAR loops. OverallTime: 59.0s, OverallIterations: 15, TraceHistogramMax: 6, PathProgramHistogramMax: 2, EmptinessCheckTime: 0.1s, AutomataDifference: 21.9s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 5336 SdHoareTripleChecker+Valid, 19.6s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 5336 mSDsluCounter, 3917 SdHoareTripleChecker+Invalid, 16.5s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 968 mSDsCounter, 2485 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 14886 IncrementalHoareTripleChecker+Invalid, 17371 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 2485 mSolverCounterUnsat, 2949 mSDtfsCounter, 14886 mSolverCounterSat, 0.1s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown, PredicateUnifierStatistics: 0 DeclaredPredicates, 3900 GetRequests, 3850 SyntacticMatches, 0 SemanticMatches, 50 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 30 ImplicationChecksByTransitivity, 2.2s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=19235occurred in iteration=13, InterpolantAutomatonStates: 61, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: 1.4s AutomataMinimizationTime, 14 MinimizatonAttempts, 561 StatesRemovedByMinimization, 11 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.4s SsaConstructionTime, 1.1s SatisfiabilityAnalysisTime, 30.2s InterpolantComputationTime, 3553 NumberOfCodeBlocks, 3553 NumberOfCodeBlocksAsserted, 16 NumberOfCheckSat, 3881 ConstructedInterpolants, 0 QuantifiedInterpolants, 28214 SizeOfPredicates, 31 NumberOfNonLiveVariables, 5275 ConjunctsInSsa, 102 ConjunctsInUnsatCore, 16 InterpolantComputations, 14 PerfectInterpolantSequences, 1645/1803 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