/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/array-multidimensional/copy-partial-3-u.c -------------------------------------------------------------------------------- This is Ultimate 0.2.4-tmp.fs.bitabs-eval-d9c3e40-m [2023-12-21 19:02:39,237 INFO L188 SettingsManager]: Resetting all preferences to default values... [2023-12-21 19:02:39,306 INFO L114 SettingsManager]: Loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/settings/default/automizer/svcomp-Reach-32bit-Automizer_Bitvector.epf [2023-12-21 19:02:39,312 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2023-12-21 19:02:39,312 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2023-12-21 19:02:39,334 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2023-12-21 19:02:39,334 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2023-12-21 19:02:39,334 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2023-12-21 19:02:39,335 INFO L151 SettingsManager]: Preferences of Boogie Preprocessor differ from their defaults: [2023-12-21 19:02:39,337 INFO L153 SettingsManager]: * Use memory slicer=true [2023-12-21 19:02:39,338 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2023-12-21 19:02:39,338 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2023-12-21 19:02:39,338 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2023-12-21 19:02:39,339 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2023-12-21 19:02:39,339 INFO L153 SettingsManager]: * Use SBE=true [2023-12-21 19:02:39,340 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2023-12-21 19:02:39,340 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2023-12-21 19:02:39,340 INFO L153 SettingsManager]: * sizeof long=4 [2023-12-21 19:02:39,340 INFO L153 SettingsManager]: * sizeof POINTER=4 [2023-12-21 19:02:39,340 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2023-12-21 19:02:39,340 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2023-12-21 19:02:39,341 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2023-12-21 19:02:39,341 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2023-12-21 19:02:39,341 INFO L153 SettingsManager]: * Adapt memory model on pointer casts if necessary=true [2023-12-21 19:02:39,341 INFO L153 SettingsManager]: * Use bitvectors instead of ints=true [2023-12-21 19:02:39,341 INFO L153 SettingsManager]: * Allow undefined functions=false [2023-12-21 19:02:39,341 INFO L153 SettingsManager]: * Memory model=HoenickeLindenmann_4ByteResolution [2023-12-21 19:02:39,342 INFO L153 SettingsManager]: * sizeof long double=12 [2023-12-21 19:02:39,342 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2023-12-21 19:02:39,342 INFO L153 SettingsManager]: * Use constant arrays=true [2023-12-21 19:02:39,343 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2023-12-21 19:02:39,343 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2023-12-21 19:02:39,343 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2023-12-21 19:02:39,343 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2023-12-21 19:02:39,343 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2023-12-21 19:02:39,343 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2023-12-21 19:02:39,343 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2023-12-21 19:02:39,343 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2023-12-21 19:02:39,343 INFO L153 SettingsManager]: * Trace refinement strategy=WOLF [2023-12-21 19:02:39,344 INFO L153 SettingsManager]: * Command for external solver=cvc4 --incremental --print-success --lang smt [2023-12-21 19:02:39,344 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2023-12-21 19:02:39,344 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2023-12-21 19:02:39,344 INFO L153 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2023-12-21 19:02:39,344 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2023-12-21 19:02:39,344 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2023-12-21 19:02:39,345 INFO L153 SettingsManager]: * Logic for external solver=AUFBV [2023-12-21 19:02:39,345 INFO L153 SettingsManager]: * Looper check in Petri net analysis=SEMANTIC WARNING: An illegal reflective access operation has occurred WARNING: Illegal reflective access by com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 (file:/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/plugins/com.sun.xml.bind_2.2.0.v201505121915.jar) to method java.lang.ClassLoader.defineClass(java.lang.String,byte[],int,int) WARNING: Please consider reporting this to the maintainers of com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release [2023-12-21 19:02:39,524 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2023-12-21 19:02:39,545 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2023-12-21 19:02:39,547 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2023-12-21 19:02:39,548 INFO L270 PluginConnector]: Initializing CDTParser... [2023-12-21 19:02:39,548 INFO L274 PluginConnector]: CDTParser initialized [2023-12-21 19:02:39,549 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/array-multidimensional/copy-partial-3-u.c [2023-12-21 19:02:40,472 INFO L533 CDTParser]: Created temporary CDT project at NULL [2023-12-21 19:02:40,621 INFO L384 CDTParser]: Found 1 translation units. [2023-12-21 19:02:40,621 INFO L180 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/array-multidimensional/copy-partial-3-u.c [2023-12-21 19:02:40,627 INFO L427 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/821f5d940/0276eb7faff9472baa5c713da507213b/FLAG663037919 [2023-12-21 19:02:40,636 INFO L435 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/821f5d940/0276eb7faff9472baa5c713da507213b [2023-12-21 19:02:40,638 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2023-12-21 19:02:40,639 INFO L133 ToolchainWalker]: Walking toolchain with 5 elements. [2023-12-21 19:02:40,640 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2023-12-21 19:02:40,640 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2023-12-21 19:02:40,644 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2023-12-21 19:02:40,644 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 21.12 07:02:40" (1/1) ... [2023-12-21 19:02:40,645 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@3d00224e and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.12 07:02:40, skipping insertion in model container [2023-12-21 19:02:40,645 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 21.12 07:02:40" (1/1) ... [2023-12-21 19:02:40,659 INFO L177 MainTranslator]: Built tables and reachable declarations [2023-12-21 19:02:40,752 WARN L239 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/trunk/examples/svcomp/array-multidimensional/copy-partial-3-u.c[414,427] [2023-12-21 19:02:40,768 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-12-21 19:02:40,778 INFO L202 MainTranslator]: Completed pre-run [2023-12-21 19:02:40,786 WARN L239 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/trunk/examples/svcomp/array-multidimensional/copy-partial-3-u.c[414,427] [2023-12-21 19:02:40,794 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-12-21 19:02:40,803 INFO L206 MainTranslator]: Completed translation [2023-12-21 19:02:40,804 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.12 07:02:40 WrapperNode [2023-12-21 19:02:40,804 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2023-12-21 19:02:40,805 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2023-12-21 19:02:40,805 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2023-12-21 19:02:40,805 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2023-12-21 19:02:40,809 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.12 07:02:40" (1/1) ... [2023-12-21 19:02:40,815 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.12 07:02:40" (1/1) ... [2023-12-21 19:02:40,833 INFO L138 Inliner]: procedures = 17, calls = 22, calls flagged for inlining = 4, calls inlined = 4, statements flattened = 131 [2023-12-21 19:02:40,833 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2023-12-21 19:02:40,834 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2023-12-21 19:02:40,834 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2023-12-21 19:02:40,834 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2023-12-21 19:02:40,841 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.12 07:02:40" (1/1) ... [2023-12-21 19:02:40,841 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.12 07:02:40" (1/1) ... [2023-12-21 19:02:40,843 INFO L184 PluginConnector]: Executing the observer MemorySlicer from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.12 07:02:40" (1/1) ... [2023-12-21 19:02:40,852 INFO L175 MemorySlicer]: Split 9 memory accesses to 3 slices as follows [2, 4, 3]. 44 percent of accesses are in the largest equivalence class. The 2 initializations are split as follows [2, 0, 0]. The 3 writes are split as follows [0, 1, 2]. [2023-12-21 19:02:40,852 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.12 07:02:40" (1/1) ... [2023-12-21 19:02:40,852 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.12 07:02:40" (1/1) ... [2023-12-21 19:02:40,856 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.12 07:02:40" (1/1) ... [2023-12-21 19:02:40,859 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.12 07:02:40" (1/1) ... [2023-12-21 19:02:40,860 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.12 07:02:40" (1/1) ... [2023-12-21 19:02:40,861 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.12 07:02:40" (1/1) ... [2023-12-21 19:02:40,863 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2023-12-21 19:02:40,863 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2023-12-21 19:02:40,864 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2023-12-21 19:02:40,864 INFO L274 PluginConnector]: RCFGBuilder initialized [2023-12-21 19:02:40,864 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.12 07:02:40" (1/1) ... [2023-12-21 19:02:40,879 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2023-12-21 19:02:40,889 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-12-21 19:02:40,904 INFO L229 MonitoredProcess]: Starting monitored process 1 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (exit command is (exit), workingDir is null) [2023-12-21 19:02:40,913 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (1)] Waiting until timeout for monitored process [2023-12-21 19:02:40,929 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2023-12-21 19:02:40,929 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE1#0 [2023-12-21 19:02:40,929 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE1#1 [2023-12-21 19:02:40,929 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE1#2 [2023-12-21 19:02:40,929 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2023-12-21 19:02:40,929 INFO L130 BoogieDeclarations]: Found specification of procedure read~intINTTYPE4#0 [2023-12-21 19:02:40,930 INFO L130 BoogieDeclarations]: Found specification of procedure read~intINTTYPE4#1 [2023-12-21 19:02:40,930 INFO L130 BoogieDeclarations]: Found specification of procedure read~intINTTYPE4#2 [2023-12-21 19:02:40,930 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2023-12-21 19:02:40,930 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2023-12-21 19:02:40,930 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2023-12-21 19:02:40,930 INFO L130 BoogieDeclarations]: Found specification of procedure write~intINTTYPE4#0 [2023-12-21 19:02:40,930 INFO L130 BoogieDeclarations]: Found specification of procedure write~intINTTYPE4#1 [2023-12-21 19:02:40,930 INFO L130 BoogieDeclarations]: Found specification of procedure write~intINTTYPE4#2 [2023-12-21 19:02:40,989 INFO L241 CfgBuilder]: Building ICFG [2023-12-21 19:02:40,990 INFO L267 CfgBuilder]: Building CFG for each procedure with an implementation [2023-12-21 19:02:41,352 INFO L282 CfgBuilder]: Performing block encoding [2023-12-21 19:02:41,377 INFO L304 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2023-12-21 19:02:41,377 INFO L309 CfgBuilder]: Removed 12 assume(true) statements. [2023-12-21 19:02:41,377 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 21.12 07:02:41 BoogieIcfgContainer [2023-12-21 19:02:41,377 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2023-12-21 19:02:41,379 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2023-12-21 19:02:41,379 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2023-12-21 19:02:41,381 INFO L274 PluginConnector]: TraceAbstraction initialized [2023-12-21 19:02:41,381 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 21.12 07:02:40" (1/3) ... [2023-12-21 19:02:41,382 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@5d4486a3 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 21.12 07:02:41, skipping insertion in model container [2023-12-21 19:02:41,382 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.12 07:02:40" (2/3) ... [2023-12-21 19:02:41,382 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@5d4486a3 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 21.12 07:02:41, skipping insertion in model container [2023-12-21 19:02:41,382 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 21.12 07:02:41" (3/3) ... [2023-12-21 19:02:41,383 INFO L112 eAbstractionObserver]: Analyzing ICFG copy-partial-3-u.c [2023-12-21 19:02:41,412 INFO L204 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2023-12-21 19:02:41,413 INFO L163 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2023-12-21 19:02:41,440 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2023-12-21 19:02:41,444 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;@4c711393, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2023-12-21 19:02:41,445 INFO L358 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2023-12-21 19:02:41,447 INFO L276 IsEmpty]: Start isEmpty. Operand has 32 states, 30 states have (on average 1.9) internal successors, (57), 31 states have internal predecessors, (57), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-21 19:02:41,451 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 15 [2023-12-21 19:02:41,451 INFO L187 NwaCegarLoop]: Found error trace [2023-12-21 19:02:41,452 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-21 19:02:41,452 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-21 19:02:41,455 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-21 19:02:41,455 INFO L85 PathProgramCache]: Analyzing trace with hash -35672779, now seen corresponding path program 1 times [2023-12-21 19:02:41,463 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-12-21 19:02:41,463 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [272679665] [2023-12-21 19:02:41,464 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-21 19:02:41,464 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2023-12-21 19:02:41,464 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2023-12-21 19:02:41,466 INFO L229 MonitoredProcess]: Starting monitored process 2 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2023-12-21 19:02:41,480 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (2)] Waiting until timeout for monitored process [2023-12-21 19:02:41,565 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 19:02:41,568 INFO L262 TraceCheckSpWp]: Trace formula consists of 56 conjuncts, 1 conjunts are in the unsatisfiable core [2023-12-21 19:02:41,572 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-21 19:02:41,587 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-12-21 19:02:41,587 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-12-21 19:02:41,588 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-12-21 19:02:41,588 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [272679665] [2023-12-21 19:02:41,589 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [272679665] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-21 19:02:41,589 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-21 19:02:41,589 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2023-12-21 19:02:41,590 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1043125495] [2023-12-21 19:02:41,591 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-21 19:02:41,594 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2023-12-21 19:02:41,594 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-12-21 19:02:41,618 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2023-12-21 19:02:41,619 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2023-12-21 19:02:41,620 INFO L87 Difference]: Start difference. First operand has 32 states, 30 states have (on average 1.9) internal successors, (57), 31 states have internal predecessors, (57), 0 states have call successors, (0), 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 7.0) internal successors, (14), 2 states have internal predecessors, (14), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-21 19:02:41,651 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-21 19:02:41,652 INFO L93 Difference]: Finished difference Result 62 states and 111 transitions. [2023-12-21 19:02:41,653 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2023-12-21 19:02:41,654 INFO L78 Accepts]: Start accepts. Automaton has has 2 states, 2 states have (on average 7.0) internal successors, (14), 2 states have internal predecessors, (14), 0 states have call successors, (0), 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 14 [2023-12-21 19:02:41,654 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-21 19:02:41,659 INFO L225 Difference]: With dead ends: 62 [2023-12-21 19:02:41,660 INFO L226 Difference]: Without dead ends: 30 [2023-12-21 19:02:41,662 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 13 GetRequests, 13 SyntacticMatches, 0 SemanticMatches, 0 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2023-12-21 19:02:41,665 INFO L413 NwaCegarLoop]: 41 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, 41 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 [2023-12-21 19:02:41,666 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 41 Invalid, 2 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 2 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2023-12-21 19:02:41,677 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 30 states. [2023-12-21 19:02:41,688 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 30 to 30. [2023-12-21 19:02:41,689 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 30 states, 29 states have (on average 1.4137931034482758) internal successors, (41), 29 states have internal predecessors, (41), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-21 19:02:41,690 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 30 states to 30 states and 41 transitions. [2023-12-21 19:02:41,691 INFO L78 Accepts]: Start accepts. Automaton has 30 states and 41 transitions. Word has length 14 [2023-12-21 19:02:41,691 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-21 19:02:41,692 INFO L495 AbstractCegarLoop]: Abstraction has 30 states and 41 transitions. [2023-12-21 19:02:41,692 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 2 states, 2 states have (on average 7.0) internal successors, (14), 2 states have internal predecessors, (14), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-21 19:02:41,692 INFO L276 IsEmpty]: Start isEmpty. Operand 30 states and 41 transitions. [2023-12-21 19:02:41,693 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 15 [2023-12-21 19:02:41,693 INFO L187 NwaCegarLoop]: Found error trace [2023-12-21 19:02:41,693 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-21 19:02:41,696 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (2)] Ended with exit code 0 [2023-12-21 19:02:41,896 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2023-12-21 19:02:41,897 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-21 19:02:41,897 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-21 19:02:41,897 INFO L85 PathProgramCache]: Analyzing trace with hash 1206240891, now seen corresponding path program 1 times [2023-12-21 19:02:41,898 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-12-21 19:02:41,898 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1248037799] [2023-12-21 19:02:41,898 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-21 19:02:41,898 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2023-12-21 19:02:41,898 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2023-12-21 19:02:41,899 INFO L229 MonitoredProcess]: Starting monitored process 3 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2023-12-21 19:02:41,900 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (3)] Waiting until timeout for monitored process [2023-12-21 19:02:41,951 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 19:02:41,953 INFO L262 TraceCheckSpWp]: Trace formula consists of 56 conjuncts, 3 conjunts are in the unsatisfiable core [2023-12-21 19:02:41,955 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-21 19:02:41,992 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-12-21 19:02:41,992 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-12-21 19:02:41,993 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-12-21 19:02:41,993 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1248037799] [2023-12-21 19:02:41,993 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1248037799] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-21 19:02:41,993 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-21 19:02:41,993 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2023-12-21 19:02:41,993 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1616291899] [2023-12-21 19:02:41,993 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-21 19:02:41,994 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2023-12-21 19:02:41,994 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-12-21 19:02:41,995 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2023-12-21 19:02:41,995 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2023-12-21 19:02:41,995 INFO L87 Difference]: Start difference. First operand 30 states and 41 transitions. Second operand has 4 states, 4 states have (on average 3.5) internal successors, (14), 3 states have internal predecessors, (14), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-21 19:02:42,276 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-21 19:02:42,276 INFO L93 Difference]: Finished difference Result 72 states and 99 transitions. [2023-12-21 19:02:42,281 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2023-12-21 19:02:42,281 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 3.5) internal successors, (14), 3 states have internal predecessors, (14), 0 states have call successors, (0), 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 14 [2023-12-21 19:02:42,281 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-21 19:02:42,282 INFO L225 Difference]: With dead ends: 72 [2023-12-21 19:02:42,282 INFO L226 Difference]: Without dead ends: 50 [2023-12-21 19:02:42,282 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 13 GetRequests, 11 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2023-12-21 19:02:42,283 INFO L413 NwaCegarLoop]: 17 mSDtfsCounter, 63 mSDsluCounter, 12 mSDsCounter, 0 mSdLazyCounter, 50 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 63 SdHoareTripleChecker+Valid, 29 SdHoareTripleChecker+Invalid, 52 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 50 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2023-12-21 19:02:42,284 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [63 Valid, 29 Invalid, 52 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 50 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2023-12-21 19:02:42,284 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 50 states. [2023-12-21 19:02:42,289 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 50 to 31. [2023-12-21 19:02:42,289 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 31 states, 30 states have (on average 1.4) internal successors, (42), 30 states have internal predecessors, (42), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-21 19:02:42,290 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 31 states to 31 states and 42 transitions. [2023-12-21 19:02:42,290 INFO L78 Accepts]: Start accepts. Automaton has 31 states and 42 transitions. Word has length 14 [2023-12-21 19:02:42,290 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-21 19:02:42,290 INFO L495 AbstractCegarLoop]: Abstraction has 31 states and 42 transitions. [2023-12-21 19:02:42,290 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 3.5) internal successors, (14), 3 states have internal predecessors, (14), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-21 19:02:42,290 INFO L276 IsEmpty]: Start isEmpty. Operand 31 states and 42 transitions. [2023-12-21 19:02:42,291 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 18 [2023-12-21 19:02:42,291 INFO L187 NwaCegarLoop]: Found error trace [2023-12-21 19:02:42,291 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-21 19:02:42,302 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (3)] Forceful destruction successful, exit code 0 [2023-12-21 19:02:42,494 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 3 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2023-12-21 19:02:42,497 INFO L420 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-21 19:02:42,497 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-21 19:02:42,497 INFO L85 PathProgramCache]: Analyzing trace with hash 2139015076, now seen corresponding path program 1 times [2023-12-21 19:02:42,498 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-12-21 19:02:42,498 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1974935375] [2023-12-21 19:02:42,498 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-21 19:02:42,498 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2023-12-21 19:02:42,498 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2023-12-21 19:02:42,499 INFO L229 MonitoredProcess]: Starting monitored process 4 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2023-12-21 19:02:42,500 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (4)] Waiting until timeout for monitored process [2023-12-21 19:02:42,559 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 19:02:42,563 INFO L262 TraceCheckSpWp]: Trace formula consists of 61 conjuncts, 3 conjunts are in the unsatisfiable core [2023-12-21 19:02:42,568 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-21 19:02:42,599 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 1 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-12-21 19:02:42,600 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-12-21 19:02:42,600 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-12-21 19:02:42,603 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1974935375] [2023-12-21 19:02:42,603 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1974935375] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-21 19:02:42,603 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-21 19:02:42,603 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2023-12-21 19:02:42,603 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1721189619] [2023-12-21 19:02:42,603 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-21 19:02:42,605 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2023-12-21 19:02:42,605 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-12-21 19:02:42,605 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2023-12-21 19:02:42,606 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2023-12-21 19:02:42,606 INFO L87 Difference]: Start difference. First operand 31 states and 42 transitions. Second operand has 4 states, 4 states have (on average 4.25) internal successors, (17), 3 states have internal predecessors, (17), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-21 19:02:42,945 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-21 19:02:42,946 INFO L93 Difference]: Finished difference Result 77 states and 107 transitions. [2023-12-21 19:02:42,946 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2023-12-21 19:02:42,946 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 4.25) internal successors, (17), 3 states have internal predecessors, (17), 0 states have call successors, (0), 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 17 [2023-12-21 19:02:42,946 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-21 19:02:42,947 INFO L225 Difference]: With dead ends: 77 [2023-12-21 19:02:42,947 INFO L226 Difference]: Without dead ends: 50 [2023-12-21 19:02:42,947 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 16 GetRequests, 14 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2023-12-21 19:02:42,948 INFO L413 NwaCegarLoop]: 17 mSDtfsCounter, 55 mSDsluCounter, 12 mSDsCounter, 0 mSdLazyCounter, 47 mSolverCounterSat, 9 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 55 SdHoareTripleChecker+Valid, 29 SdHoareTripleChecker+Invalid, 56 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 9 IncrementalHoareTripleChecker+Valid, 47 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2023-12-21 19:02:42,948 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [55 Valid, 29 Invalid, 56 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [9 Valid, 47 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2023-12-21 19:02:42,949 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 50 states. [2023-12-21 19:02:42,953 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 50 to 33. [2023-12-21 19:02:42,953 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 33 states, 32 states have (on average 1.375) internal successors, (44), 32 states have internal predecessors, (44), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-21 19:02:42,954 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 33 states to 33 states and 44 transitions. [2023-12-21 19:02:42,954 INFO L78 Accepts]: Start accepts. Automaton has 33 states and 44 transitions. Word has length 17 [2023-12-21 19:02:42,954 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-21 19:02:42,954 INFO L495 AbstractCegarLoop]: Abstraction has 33 states and 44 transitions. [2023-12-21 19:02:42,954 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 4.25) internal successors, (17), 3 states have internal predecessors, (17), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-21 19:02:42,954 INFO L276 IsEmpty]: Start isEmpty. Operand 33 states and 44 transitions. [2023-12-21 19:02:42,955 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 21 [2023-12-21 19:02:42,955 INFO L187 NwaCegarLoop]: Found error trace [2023-12-21 19:02:42,955 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] [2023-12-21 19:02:42,960 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (4)] Forceful destruction successful, exit code 0 [2023-12-21 19:02:43,160 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 4 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2023-12-21 19:02:43,160 INFO L420 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-21 19:02:43,163 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-21 19:02:43,163 INFO L85 PathProgramCache]: Analyzing trace with hash 527282873, now seen corresponding path program 1 times [2023-12-21 19:02:43,163 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-12-21 19:02:43,163 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [191666532] [2023-12-21 19:02:43,163 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-21 19:02:43,163 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2023-12-21 19:02:43,164 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2023-12-21 19:02:43,165 INFO L229 MonitoredProcess]: Starting monitored process 5 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2023-12-21 19:02:43,177 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (5)] Waiting until timeout for monitored process [2023-12-21 19:02:43,217 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 19:02:43,220 INFO L262 TraceCheckSpWp]: Trace formula consists of 65 conjuncts, 3 conjunts are in the unsatisfiable core [2023-12-21 19:02:43,221 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-21 19:02:43,251 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 2 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-12-21 19:02:43,251 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-12-21 19:02:43,252 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-12-21 19:02:43,253 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [191666532] [2023-12-21 19:02:43,253 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [191666532] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-21 19:02:43,253 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-21 19:02:43,253 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2023-12-21 19:02:43,253 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [982857220] [2023-12-21 19:02:43,254 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-21 19:02:43,254 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2023-12-21 19:02:43,256 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-12-21 19:02:43,256 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2023-12-21 19:02:43,259 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2023-12-21 19:02:43,259 INFO L87 Difference]: Start difference. First operand 33 states and 44 transitions. Second operand has 4 states, 4 states have (on average 5.0) internal successors, (20), 3 states have internal predecessors, (20), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-21 19:02:43,554 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-21 19:02:43,554 INFO L93 Difference]: Finished difference Result 79 states and 108 transitions. [2023-12-21 19:02:43,554 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2023-12-21 19:02:43,555 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 5.0) internal successors, (20), 3 states have internal predecessors, (20), 0 states have call successors, (0), 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 20 [2023-12-21 19:02:43,555 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-21 19:02:43,555 INFO L225 Difference]: With dead ends: 79 [2023-12-21 19:02:43,555 INFO L226 Difference]: Without dead ends: 50 [2023-12-21 19:02:43,556 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 19 GetRequests, 17 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2023-12-21 19:02:43,556 INFO L413 NwaCegarLoop]: 20 mSDtfsCounter, 73 mSDsluCounter, 15 mSDsCounter, 0 mSdLazyCounter, 38 mSolverCounterSat, 15 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 73 SdHoareTripleChecker+Valid, 35 SdHoareTripleChecker+Invalid, 53 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 15 IncrementalHoareTripleChecker+Valid, 38 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2023-12-21 19:02:43,556 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [73 Valid, 35 Invalid, 53 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [15 Valid, 38 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2023-12-21 19:02:43,557 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 50 states. [2023-12-21 19:02:43,561 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 50 to 35. [2023-12-21 19:02:43,562 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 35 states, 34 states have (on average 1.3529411764705883) internal successors, (46), 34 states have internal predecessors, (46), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-21 19:02:43,562 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 35 states to 35 states and 46 transitions. [2023-12-21 19:02:43,562 INFO L78 Accepts]: Start accepts. Automaton has 35 states and 46 transitions. Word has length 20 [2023-12-21 19:02:43,562 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-21 19:02:43,562 INFO L495 AbstractCegarLoop]: Abstraction has 35 states and 46 transitions. [2023-12-21 19:02:43,562 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 5.0) internal successors, (20), 3 states have internal predecessors, (20), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-21 19:02:43,562 INFO L276 IsEmpty]: Start isEmpty. Operand 35 states and 46 transitions. [2023-12-21 19:02:43,563 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 22 [2023-12-21 19:02:43,563 INFO L187 NwaCegarLoop]: Found error trace [2023-12-21 19:02:43,563 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] [2023-12-21 19:02:43,568 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (5)] Forceful destruction successful, exit code 0 [2023-12-21 19:02:43,766 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 5 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2023-12-21 19:02:43,766 INFO L420 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-21 19:02:43,766 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-21 19:02:43,766 INFO L85 PathProgramCache]: Analyzing trace with hash 2131150869, now seen corresponding path program 1 times [2023-12-21 19:02:43,767 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-12-21 19:02:43,767 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1863869014] [2023-12-21 19:02:43,767 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-21 19:02:43,767 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2023-12-21 19:02:43,767 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2023-12-21 19:02:43,768 INFO L229 MonitoredProcess]: Starting monitored process 6 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2023-12-21 19:02:43,769 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (6)] Waiting until timeout for monitored process [2023-12-21 19:02:43,816 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 19:02:43,818 INFO L262 TraceCheckSpWp]: Trace formula consists of 70 conjuncts, 4 conjunts are in the unsatisfiable core [2023-12-21 19:02:43,819 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-21 19:02:43,880 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 2 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-12-21 19:02:43,880 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-12-21 19:02:43,929 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 2 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-12-21 19:02:43,930 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-12-21 19:02:43,930 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1863869014] [2023-12-21 19:02:43,946 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1863869014] provided 0 perfect and 2 imperfect interpolant sequences [2023-12-21 19:02:43,946 INFO L185 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2023-12-21 19:02:43,946 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [4, 4] total 7 [2023-12-21 19:02:43,947 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1356005191] [2023-12-21 19:02:43,947 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2023-12-21 19:02:43,947 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2023-12-21 19:02:43,947 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-12-21 19:02:43,948 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2023-12-21 19:02:43,948 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=22, Invalid=34, Unknown=0, NotChecked=0, Total=56 [2023-12-21 19:02:43,948 INFO L87 Difference]: Start difference. First operand 35 states and 46 transitions. Second operand has 8 states, 8 states have (on average 3.5) internal successors, (28), 7 states have internal predecessors, (28), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-21 19:02:44,574 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-21 19:02:44,575 INFO L93 Difference]: Finished difference Result 125 states and 173 transitions. [2023-12-21 19:02:44,575 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2023-12-21 19:02:44,575 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 8 states have (on average 3.5) internal successors, (28), 7 states have internal predecessors, (28), 0 states have call successors, (0), 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 21 [2023-12-21 19:02:44,576 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-21 19:02:44,577 INFO L225 Difference]: With dead ends: 125 [2023-12-21 19:02:44,578 INFO L226 Difference]: Without dead ends: 94 [2023-12-21 19:02:44,578 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 42 GetRequests, 34 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 9 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=38, Invalid=52, Unknown=0, NotChecked=0, Total=90 [2023-12-21 19:02:44,579 INFO L413 NwaCegarLoop]: 32 mSDtfsCounter, 268 mSDsluCounter, 59 mSDsCounter, 0 mSdLazyCounter, 122 mSolverCounterSat, 33 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 268 SdHoareTripleChecker+Valid, 91 SdHoareTripleChecker+Invalid, 155 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 33 IncrementalHoareTripleChecker+Valid, 122 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.6s IncrementalHoareTripleChecker+Time [2023-12-21 19:02:44,579 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [268 Valid, 91 Invalid, 155 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [33 Valid, 122 Invalid, 0 Unknown, 0 Unchecked, 0.6s Time] [2023-12-21 19:02:44,579 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 94 states. [2023-12-21 19:02:44,585 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 94 to 47. [2023-12-21 19:02:44,586 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 47 states, 46 states have (on average 1.326086956521739) internal successors, (61), 46 states have internal predecessors, (61), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-21 19:02:44,586 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 47 states to 47 states and 61 transitions. [2023-12-21 19:02:44,586 INFO L78 Accepts]: Start accepts. Automaton has 47 states and 61 transitions. Word has length 21 [2023-12-21 19:02:44,586 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-21 19:02:44,586 INFO L495 AbstractCegarLoop]: Abstraction has 47 states and 61 transitions. [2023-12-21 19:02:44,586 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 8 states have (on average 3.5) internal successors, (28), 7 states have internal predecessors, (28), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-21 19:02:44,587 INFO L276 IsEmpty]: Start isEmpty. Operand 47 states and 61 transitions. [2023-12-21 19:02:44,587 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 25 [2023-12-21 19:02:44,587 INFO L187 NwaCegarLoop]: Found error trace [2023-12-21 19:02:44,587 INFO L195 NwaCegarLoop]: trace histogram [4, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-21 19:02:44,593 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (6)] Forceful destruction successful, exit code 0 [2023-12-21 19:02:44,787 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 6 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2023-12-21 19:02:44,788 INFO L420 AbstractCegarLoop]: === Iteration 6 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-21 19:02:44,788 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-21 19:02:44,788 INFO L85 PathProgramCache]: Analyzing trace with hash -944363079, now seen corresponding path program 2 times [2023-12-21 19:02:44,789 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-12-21 19:02:44,789 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [771247461] [2023-12-21 19:02:44,789 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2023-12-21 19:02:44,789 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2023-12-21 19:02:44,789 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2023-12-21 19:02:44,790 INFO L229 MonitoredProcess]: Starting monitored process 7 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2023-12-21 19:02:44,793 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (7)] Waiting until timeout for monitored process [2023-12-21 19:02:44,831 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 1 check-sat command(s) [2023-12-21 19:02:44,832 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2023-12-21 19:02:44,833 INFO L262 TraceCheckSpWp]: Trace formula consists of 56 conjuncts, 3 conjunts are in the unsatisfiable core [2023-12-21 19:02:44,834 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-21 19:02:44,862 INFO L134 CoverageAnalysis]: Checked inductivity of 12 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 12 trivial. 0 not checked. [2023-12-21 19:02:44,863 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-12-21 19:02:44,863 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-12-21 19:02:44,863 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [771247461] [2023-12-21 19:02:44,863 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [771247461] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-21 19:02:44,863 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-21 19:02:44,863 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2023-12-21 19:02:44,863 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1621433131] [2023-12-21 19:02:44,863 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-21 19:02:44,863 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2023-12-21 19:02:44,863 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-12-21 19:02:44,864 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2023-12-21 19:02:44,864 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2023-12-21 19:02:44,864 INFO L87 Difference]: Start difference. First operand 47 states and 61 transitions. Second operand has 4 states, 4 states have (on average 5.25) internal successors, (21), 3 states have internal predecessors, (21), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-21 19:02:45,174 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-21 19:02:45,174 INFO L93 Difference]: Finished difference Result 108 states and 140 transitions. [2023-12-21 19:02:45,179 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2023-12-21 19:02:45,179 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 5.25) internal successors, (21), 3 states have internal predecessors, (21), 0 states have call successors, (0), 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 24 [2023-12-21 19:02:45,179 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-21 19:02:45,180 INFO L225 Difference]: With dead ends: 108 [2023-12-21 19:02:45,180 INFO L226 Difference]: Without dead ends: 81 [2023-12-21 19:02:45,180 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 23 GetRequests, 21 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2023-12-21 19:02:45,181 INFO L413 NwaCegarLoop]: 24 mSDtfsCounter, 52 mSDsluCounter, 17 mSDsCounter, 0 mSdLazyCounter, 38 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 52 SdHoareTripleChecker+Valid, 41 SdHoareTripleChecker+Invalid, 40 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 38 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2023-12-21 19:02:45,181 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [52 Valid, 41 Invalid, 40 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 38 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2023-12-21 19:02:45,181 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 81 states. [2023-12-21 19:02:45,188 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 81 to 48. [2023-12-21 19:02:45,189 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 48 states, 47 states have (on average 1.3191489361702127) internal successors, (62), 47 states have internal predecessors, (62), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-21 19:02:45,189 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 48 states to 48 states and 62 transitions. [2023-12-21 19:02:45,189 INFO L78 Accepts]: Start accepts. Automaton has 48 states and 62 transitions. Word has length 24 [2023-12-21 19:02:45,189 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-21 19:02:45,189 INFO L495 AbstractCegarLoop]: Abstraction has 48 states and 62 transitions. [2023-12-21 19:02:45,189 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 5.25) internal successors, (21), 3 states have internal predecessors, (21), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-21 19:02:45,189 INFO L276 IsEmpty]: Start isEmpty. Operand 48 states and 62 transitions. [2023-12-21 19:02:45,190 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 28 [2023-12-21 19:02:45,190 INFO L187 NwaCegarLoop]: Found error trace [2023-12-21 19:02:45,190 INFO L195 NwaCegarLoop]: trace histogram [4, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-21 19:02:45,199 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (7)] Forceful destruction successful, exit code 0 [2023-12-21 19:02:45,392 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 7 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2023-12-21 19:02:45,393 INFO L420 AbstractCegarLoop]: === Iteration 7 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-21 19:02:45,393 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-21 19:02:45,393 INFO L85 PathProgramCache]: Analyzing trace with hash -1178134721, now seen corresponding path program 1 times [2023-12-21 19:02:45,393 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-12-21 19:02:45,394 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [2056791996] [2023-12-21 19:02:45,394 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-21 19:02:45,394 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2023-12-21 19:02:45,394 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2023-12-21 19:02:45,395 INFO L229 MonitoredProcess]: Starting monitored process 8 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2023-12-21 19:02:45,395 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (8)] Waiting until timeout for monitored process [2023-12-21 19:02:45,465 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 19:02:45,468 INFO L262 TraceCheckSpWp]: Trace formula consists of 90 conjuncts, 7 conjunts are in the unsatisfiable core [2023-12-21 19:02:45,469 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-21 19:02:45,547 INFO L134 CoverageAnalysis]: Checked inductivity of 13 backedges. 2 proven. 10 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2023-12-21 19:02:45,547 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-12-21 19:02:45,704 INFO L134 CoverageAnalysis]: Checked inductivity of 13 backedges. 2 proven. 10 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2023-12-21 19:02:45,704 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-12-21 19:02:45,704 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [2056791996] [2023-12-21 19:02:45,704 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [2056791996] provided 0 perfect and 2 imperfect interpolant sequences [2023-12-21 19:02:45,704 INFO L185 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2023-12-21 19:02:45,704 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [7, 7] total 13 [2023-12-21 19:02:45,704 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1845776027] [2023-12-21 19:02:45,704 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2023-12-21 19:02:45,705 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 14 states [2023-12-21 19:02:45,705 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-12-21 19:02:45,705 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 14 interpolants. [2023-12-21 19:02:45,705 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=61, Invalid=121, Unknown=0, NotChecked=0, Total=182 [2023-12-21 19:02:45,705 INFO L87 Difference]: Start difference. First operand 48 states and 62 transitions. Second operand has 14 states, 14 states have (on average 2.642857142857143) internal successors, (37), 13 states have internal predecessors, (37), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-21 19:02:47,440 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-21 19:02:47,440 INFO L93 Difference]: Finished difference Result 235 states and 322 transitions. [2023-12-21 19:02:47,440 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2023-12-21 19:02:47,440 INFO L78 Accepts]: Start accepts. Automaton has has 14 states, 14 states have (on average 2.642857142857143) internal successors, (37), 13 states have internal predecessors, (37), 0 states have call successors, (0), 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 27 [2023-12-21 19:02:47,441 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-21 19:02:47,441 INFO L225 Difference]: With dead ends: 235 [2023-12-21 19:02:47,441 INFO L226 Difference]: Without dead ends: 191 [2023-12-21 19:02:47,442 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 57 GetRequests, 40 SyntacticMatches, 0 SemanticMatches, 17 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 45 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=131, Invalid=211, Unknown=0, NotChecked=0, Total=342 [2023-12-21 19:02:47,442 INFO L413 NwaCegarLoop]: 68 mSDtfsCounter, 595 mSDsluCounter, 262 mSDsCounter, 0 mSdLazyCounter, 433 mSolverCounterSat, 170 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 595 SdHoareTripleChecker+Valid, 330 SdHoareTripleChecker+Invalid, 603 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 170 IncrementalHoareTripleChecker+Valid, 433 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.5s IncrementalHoareTripleChecker+Time [2023-12-21 19:02:47,442 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [595 Valid, 330 Invalid, 603 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [170 Valid, 433 Invalid, 0 Unknown, 0 Unchecked, 1.5s Time] [2023-12-21 19:02:47,443 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 191 states. [2023-12-21 19:02:47,452 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 191 to 72. [2023-12-21 19:02:47,452 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 72 states, 71 states have (on average 1.295774647887324) internal successors, (92), 71 states have internal predecessors, (92), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-21 19:02:47,452 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 72 states to 72 states and 92 transitions. [2023-12-21 19:02:47,452 INFO L78 Accepts]: Start accepts. Automaton has 72 states and 92 transitions. Word has length 27 [2023-12-21 19:02:47,452 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-21 19:02:47,452 INFO L495 AbstractCegarLoop]: Abstraction has 72 states and 92 transitions. [2023-12-21 19:02:47,453 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 14 states, 14 states have (on average 2.642857142857143) internal successors, (37), 13 states have internal predecessors, (37), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-21 19:02:47,453 INFO L276 IsEmpty]: Start isEmpty. Operand 72 states and 92 transitions. [2023-12-21 19:02:47,453 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 34 [2023-12-21 19:02:47,453 INFO L187 NwaCegarLoop]: Found error trace [2023-12-21 19:02:47,453 INFO L195 NwaCegarLoop]: trace histogram [10, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-21 19:02:47,461 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (8)] Forceful destruction successful, exit code 0 [2023-12-21 19:02:47,656 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 8 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2023-12-21 19:02:47,657 INFO L420 AbstractCegarLoop]: === Iteration 8 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-21 19:02:47,657 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-21 19:02:47,657 INFO L85 PathProgramCache]: Analyzing trace with hash 37872831, now seen corresponding path program 2 times [2023-12-21 19:02:47,658 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-12-21 19:02:47,658 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [291569257] [2023-12-21 19:02:47,658 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2023-12-21 19:02:47,658 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2023-12-21 19:02:47,658 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2023-12-21 19:02:47,660 INFO L229 MonitoredProcess]: Starting monitored process 9 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2023-12-21 19:02:47,665 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (9)] Waiting until timeout for monitored process [2023-12-21 19:02:47,708 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 1 check-sat command(s) [2023-12-21 19:02:47,708 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2023-12-21 19:02:47,710 INFO L262 TraceCheckSpWp]: Trace formula consists of 56 conjuncts, 4 conjunts are in the unsatisfiable core [2023-12-21 19:02:47,712 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-21 19:02:47,816 INFO L134 CoverageAnalysis]: Checked inductivity of 58 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 58 trivial. 0 not checked. [2023-12-21 19:02:47,816 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-12-21 19:02:47,816 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-12-21 19:02:47,816 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [291569257] [2023-12-21 19:02:47,816 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [291569257] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-21 19:02:47,816 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-21 19:02:47,816 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2023-12-21 19:02:47,816 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [647219950] [2023-12-21 19:02:47,816 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-21 19:02:47,816 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2023-12-21 19:02:47,817 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-12-21 19:02:47,817 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2023-12-21 19:02:47,817 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2023-12-21 19:02:47,817 INFO L87 Difference]: Start difference. First operand 72 states and 92 transitions. Second operand has 4 states, 4 states have (on average 6.0) internal successors, (24), 3 states have internal predecessors, (24), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-21 19:02:48,061 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-21 19:02:48,061 INFO L93 Difference]: Finished difference Result 116 states and 150 transitions. [2023-12-21 19:02:48,061 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2023-12-21 19:02:48,062 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 6.0) internal successors, (24), 3 states have internal predecessors, (24), 0 states have call successors, (0), 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 33 [2023-12-21 19:02:48,062 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-21 19:02:48,062 INFO L225 Difference]: With dead ends: 116 [2023-12-21 19:02:48,062 INFO L226 Difference]: Without dead ends: 77 [2023-12-21 19:02:48,062 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 33 GetRequests, 30 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2023-12-21 19:02:48,063 INFO L413 NwaCegarLoop]: 15 mSDtfsCounter, 38 mSDsluCounter, 9 mSDsCounter, 0 mSdLazyCounter, 57 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 38 SdHoareTripleChecker+Valid, 24 SdHoareTripleChecker+Invalid, 57 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 57 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2023-12-21 19:02:48,063 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [38 Valid, 24 Invalid, 57 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 57 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2023-12-21 19:02:48,063 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 77 states. [2023-12-21 19:02:48,071 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 77 to 73. [2023-12-21 19:02:48,071 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 73 states, 72 states have (on average 1.2916666666666667) internal successors, (93), 72 states have internal predecessors, (93), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-21 19:02:48,072 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 73 states to 73 states and 93 transitions. [2023-12-21 19:02:48,072 INFO L78 Accepts]: Start accepts. Automaton has 73 states and 93 transitions. Word has length 33 [2023-12-21 19:02:48,072 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-21 19:02:48,072 INFO L495 AbstractCegarLoop]: Abstraction has 73 states and 93 transitions. [2023-12-21 19:02:48,072 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 6.0) internal successors, (24), 3 states have internal predecessors, (24), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-21 19:02:48,072 INFO L276 IsEmpty]: Start isEmpty. Operand 73 states and 93 transitions. [2023-12-21 19:02:48,072 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 37 [2023-12-21 19:02:48,072 INFO L187 NwaCegarLoop]: Found error trace [2023-12-21 19:02:48,073 INFO L195 NwaCegarLoop]: trace histogram [10, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-21 19:02:48,078 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 [2023-12-21 19:02:48,273 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 9 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2023-12-21 19:02:48,274 INFO L420 AbstractCegarLoop]: === Iteration 9 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-21 19:02:48,274 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-21 19:02:48,274 INFO L85 PathProgramCache]: Analyzing trace with hash 2111941714, now seen corresponding path program 1 times [2023-12-21 19:02:48,274 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-12-21 19:02:48,274 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [661795414] [2023-12-21 19:02:48,274 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-21 19:02:48,274 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2023-12-21 19:02:48,275 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2023-12-21 19:02:48,275 INFO L229 MonitoredProcess]: Starting monitored process 10 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2023-12-21 19:02:48,296 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (10)] Waiting until timeout for monitored process [2023-12-21 19:02:48,356 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 19:02:48,360 INFO L262 TraceCheckSpWp]: Trace formula consists of 124 conjuncts, 13 conjunts are in the unsatisfiable core [2023-12-21 19:02:48,361 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-21 19:02:48,508 INFO L134 CoverageAnalysis]: Checked inductivity of 59 backedges. 2 proven. 55 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2023-12-21 19:02:48,508 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-12-21 19:02:49,012 INFO L134 CoverageAnalysis]: Checked inductivity of 59 backedges. 2 proven. 55 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2023-12-21 19:02:49,013 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-12-21 19:02:49,013 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [661795414] [2023-12-21 19:02:49,013 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [661795414] provided 0 perfect and 2 imperfect interpolant sequences [2023-12-21 19:02:49,013 INFO L185 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2023-12-21 19:02:49,013 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [13, 13] total 25 [2023-12-21 19:02:49,013 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [302292319] [2023-12-21 19:02:49,013 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2023-12-21 19:02:49,013 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 26 states [2023-12-21 19:02:49,013 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-12-21 19:02:49,014 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 26 interpolants. [2023-12-21 19:02:49,015 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=193, Invalid=457, Unknown=0, NotChecked=0, Total=650 [2023-12-21 19:02:49,015 INFO L87 Difference]: Start difference. First operand 73 states and 93 transitions. Second operand has 26 states, 26 states have (on average 2.0) internal successors, (52), 25 states have internal predecessors, (52), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-21 19:02:53,872 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-21 19:02:53,872 INFO L93 Difference]: Finished difference Result 475 states and 640 transitions. [2023-12-21 19:02:53,872 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 25 states. [2023-12-21 19:02:53,873 INFO L78 Accepts]: Start accepts. Automaton has has 26 states, 26 states have (on average 2.0) internal successors, (52), 25 states have internal predecessors, (52), 0 states have call successors, (0), 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 36 [2023-12-21 19:02:53,873 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-21 19:02:53,874 INFO L225 Difference]: With dead ends: 475 [2023-12-21 19:02:53,874 INFO L226 Difference]: Without dead ends: 406 [2023-12-21 19:02:53,875 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 81 GetRequests, 46 SyntacticMatches, 0 SemanticMatches, 35 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 198 ImplicationChecksByTransitivity, 1.2s TimeCoverageRelationStatistics Valid=479, Invalid=853, Unknown=0, NotChecked=0, Total=1332 [2023-12-21 19:02:53,875 INFO L413 NwaCegarLoop]: 140 mSDtfsCounter, 2140 mSDsluCounter, 1187 mSDsCounter, 0 mSdLazyCounter, 1788 mSolverCounterSat, 300 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 3.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2140 SdHoareTripleChecker+Valid, 1327 SdHoareTripleChecker+Invalid, 2088 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 300 IncrementalHoareTripleChecker+Valid, 1788 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 4.0s IncrementalHoareTripleChecker+Time [2023-12-21 19:02:53,875 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [2140 Valid, 1327 Invalid, 2088 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [300 Valid, 1788 Invalid, 0 Unknown, 0 Unchecked, 4.0s Time] [2023-12-21 19:02:53,876 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 406 states. [2023-12-21 19:02:53,889 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 406 to 121. [2023-12-21 19:02:53,889 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 121 states, 120 states have (on average 1.275) internal successors, (153), 120 states have internal predecessors, (153), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-21 19:02:53,889 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 121 states to 121 states and 153 transitions. [2023-12-21 19:02:53,889 INFO L78 Accepts]: Start accepts. Automaton has 121 states and 153 transitions. Word has length 36 [2023-12-21 19:02:53,890 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-21 19:02:53,890 INFO L495 AbstractCegarLoop]: Abstraction has 121 states and 153 transitions. [2023-12-21 19:02:53,890 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 26 states, 26 states have (on average 2.0) internal successors, (52), 25 states have internal predecessors, (52), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-21 19:02:53,890 INFO L276 IsEmpty]: Start isEmpty. Operand 121 states and 153 transitions. [2023-12-21 19:02:53,890 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 49 [2023-12-21 19:02:53,891 INFO L187 NwaCegarLoop]: Found error trace [2023-12-21 19:02:53,891 INFO L195 NwaCegarLoop]: trace histogram [22, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-21 19:02:53,897 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (10)] Forceful destruction successful, exit code 0 [2023-12-21 19:02:54,095 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 10 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2023-12-21 19:02:54,095 INFO L420 AbstractCegarLoop]: === Iteration 10 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-21 19:02:54,096 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-21 19:02:54,096 INFO L85 PathProgramCache]: Analyzing trace with hash 517378386, now seen corresponding path program 2 times [2023-12-21 19:02:54,096 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-12-21 19:02:54,096 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [769227904] [2023-12-21 19:02:54,096 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2023-12-21 19:02:54,096 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 [2023-12-21 19:02:54,096 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2023-12-21 19:02:54,097 INFO L229 MonitoredProcess]: Starting monitored process 11 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2023-12-21 19:02:54,098 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (11)] Waiting until timeout for monitored process [2023-12-21 19:02:54,247 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2023-12-21 19:02:54,247 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2023-12-21 19:02:54,255 INFO L262 TraceCheckSpWp]: Trace formula consists of 184 conjuncts, 25 conjunts are in the unsatisfiable core [2023-12-21 19:02:54,256 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-21 19:02:54,619 INFO L134 CoverageAnalysis]: Checked inductivity of 257 backedges. 2 proven. 253 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2023-12-21 19:02:54,620 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-12-21 19:02:56,179 INFO L134 CoverageAnalysis]: Checked inductivity of 257 backedges. 2 proven. 253 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2023-12-21 19:02:56,180 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-12-21 19:02:56,180 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [769227904] [2023-12-21 19:02:56,180 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [769227904] provided 0 perfect and 2 imperfect interpolant sequences [2023-12-21 19:02:56,180 INFO L185 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2023-12-21 19:02:56,180 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [25, 25] total 49 [2023-12-21 19:02:56,180 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1825368365] [2023-12-21 19:02:56,180 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2023-12-21 19:02:56,180 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 50 states [2023-12-21 19:02:56,181 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-12-21 19:02:56,181 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 50 interpolants. [2023-12-21 19:02:56,182 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=673, Invalid=1777, Unknown=0, NotChecked=0, Total=2450 [2023-12-21 19:02:56,182 INFO L87 Difference]: Start difference. First operand 121 states and 153 transitions. Second operand has 50 states, 50 states have (on average 1.52) internal successors, (76), 49 states have internal predecessors, (76), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-21 19:03:13,558 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-21 19:03:13,558 INFO L93 Difference]: Finished difference Result 931 states and 1252 transitions. [2023-12-21 19:03:13,558 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 49 states. [2023-12-21 19:03:13,559 INFO L78 Accepts]: Start accepts. Automaton has has 50 states, 50 states have (on average 1.52) internal successors, (76), 49 states have internal predecessors, (76), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 48 [2023-12-21 19:03:13,559 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-21 19:03:13,561 INFO L225 Difference]: With dead ends: 931 [2023-12-21 19:03:13,561 INFO L226 Difference]: Without dead ends: 814 [2023-12-21 19:03:13,563 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 117 GetRequests, 46 SyntacticMatches, 0 SemanticMatches, 71 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 828 ImplicationChecksByTransitivity, 6.7s TimeCoverageRelationStatistics Valid=1823, Invalid=3433, Unknown=0, NotChecked=0, Total=5256 [2023-12-21 19:03:13,563 INFO L413 NwaCegarLoop]: 284 mSDtfsCounter, 9445 mSDsluCounter, 4924 mSDsCounter, 0 mSdLazyCounter, 6913 mSolverCounterSat, 3342 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 10.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 9445 SdHoareTripleChecker+Valid, 5208 SdHoareTripleChecker+Invalid, 10255 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 3342 IncrementalHoareTripleChecker+Valid, 6913 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 11.9s IncrementalHoareTripleChecker+Time [2023-12-21 19:03:13,563 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [9445 Valid, 5208 Invalid, 10255 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [3342 Valid, 6913 Invalid, 0 Unknown, 0 Unchecked, 11.9s Time] [2023-12-21 19:03:13,564 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 814 states. [2023-12-21 19:03:13,607 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 814 to 217. [2023-12-21 19:03:13,608 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 217 states, 216 states have (on average 1.2638888888888888) internal successors, (273), 216 states have internal predecessors, (273), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-21 19:03:13,608 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 217 states to 217 states and 273 transitions. [2023-12-21 19:03:13,608 INFO L78 Accepts]: Start accepts. Automaton has 217 states and 273 transitions. Word has length 48 [2023-12-21 19:03:13,608 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-21 19:03:13,609 INFO L495 AbstractCegarLoop]: Abstraction has 217 states and 273 transitions. [2023-12-21 19:03:13,609 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 50 states, 50 states have (on average 1.52) internal successors, (76), 49 states have internal predecessors, (76), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-21 19:03:13,609 INFO L276 IsEmpty]: Start isEmpty. Operand 217 states and 273 transitions. [2023-12-21 19:03:13,614 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 73 [2023-12-21 19:03:13,614 INFO L187 NwaCegarLoop]: Found error trace [2023-12-21 19:03:13,614 INFO L195 NwaCegarLoop]: trace histogram [46, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-21 19:03:13,622 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (11)] Forceful destruction successful, exit code 0 [2023-12-21 19:03:13,822 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 11 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2023-12-21 19:03:13,823 INFO L420 AbstractCegarLoop]: === Iteration 11 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-21 19:03:13,823 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-21 19:03:13,823 INFO L85 PathProgramCache]: Analyzing trace with hash 1618074450, now seen corresponding path program 3 times [2023-12-21 19:03:13,823 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-12-21 19:03:13,824 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [969523753] [2023-12-21 19:03:13,824 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST2 [2023-12-21 19:03:13,824 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2023-12-21 19:03:13,824 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2023-12-21 19:03:13,825 INFO L229 MonitoredProcess]: Starting monitored process 12 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2023-12-21 19:03:13,844 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (12)] Waiting until timeout for monitored process [2023-12-21 19:03:13,954 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST2 issued 2 check-sat command(s) [2023-12-21 19:03:13,954 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2023-12-21 19:03:13,957 INFO L262 TraceCheckSpWp]: Trace formula consists of 70 conjuncts, 5 conjunts are in the unsatisfiable core [2023-12-21 19:03:13,959 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-21 19:03:14,131 INFO L134 CoverageAnalysis]: Checked inductivity of 1085 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 1084 trivial. 0 not checked. [2023-12-21 19:03:14,132 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-12-21 19:03:14,278 INFO L134 CoverageAnalysis]: Checked inductivity of 1085 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 1084 trivial. 0 not checked. [2023-12-21 19:03:14,278 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-12-21 19:03:14,278 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [969523753] [2023-12-21 19:03:14,278 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [969523753] provided 0 perfect and 2 imperfect interpolant sequences [2023-12-21 19:03:14,278 INFO L185 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2023-12-21 19:03:14,278 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [4, 4] total 7 [2023-12-21 19:03:14,278 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1077852956] [2023-12-21 19:03:14,278 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2023-12-21 19:03:14,279 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2023-12-21 19:03:14,279 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-12-21 19:03:14,279 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2023-12-21 19:03:14,279 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=18, Invalid=38, Unknown=0, NotChecked=0, Total=56 [2023-12-21 19:03:14,279 INFO L87 Difference]: Start difference. First operand 217 states and 273 transitions. Second operand has 8 states, 8 states have (on average 6.0) internal successors, (48), 7 states have internal predecessors, (48), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-21 19:03:14,735 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-21 19:03:14,735 INFO L93 Difference]: Finished difference Result 592 states and 760 transitions. [2023-12-21 19:03:14,735 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2023-12-21 19:03:14,736 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 8 states have (on average 6.0) internal successors, (48), 7 states have internal predecessors, (48), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 72 [2023-12-21 19:03:14,736 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-21 19:03:14,737 INFO L225 Difference]: With dead ends: 592 [2023-12-21 19:03:14,737 INFO L226 Difference]: Without dead ends: 431 [2023-12-21 19:03:14,737 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 146 GetRequests, 136 SyntacticMatches, 0 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 6 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=48, Invalid=84, Unknown=0, NotChecked=0, Total=132 [2023-12-21 19:03:14,738 INFO L413 NwaCegarLoop]: 13 mSDtfsCounter, 214 mSDsluCounter, 25 mSDsCounter, 0 mSdLazyCounter, 114 mSolverCounterSat, 15 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 214 SdHoareTripleChecker+Valid, 38 SdHoareTripleChecker+Invalid, 129 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 15 IncrementalHoareTripleChecker+Valid, 114 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.4s IncrementalHoareTripleChecker+Time [2023-12-21 19:03:14,738 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [214 Valid, 38 Invalid, 129 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [15 Valid, 114 Invalid, 0 Unknown, 0 Unchecked, 0.4s Time] [2023-12-21 19:03:14,738 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 431 states. [2023-12-21 19:03:14,773 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 431 to 284. [2023-12-21 19:03:14,773 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 284 states, 283 states have (on average 1.2296819787985867) internal successors, (348), 283 states have internal predecessors, (348), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-21 19:03:14,774 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 284 states to 284 states and 348 transitions. [2023-12-21 19:03:14,774 INFO L78 Accepts]: Start accepts. Automaton has 284 states and 348 transitions. Word has length 72 [2023-12-21 19:03:14,774 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-21 19:03:14,774 INFO L495 AbstractCegarLoop]: Abstraction has 284 states and 348 transitions. [2023-12-21 19:03:14,774 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 8 states have (on average 6.0) internal successors, (48), 7 states have internal predecessors, (48), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-21 19:03:14,774 INFO L276 IsEmpty]: Start isEmpty. Operand 284 states and 348 transitions. [2023-12-21 19:03:14,775 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 134 [2023-12-21 19:03:14,775 INFO L187 NwaCegarLoop]: Found error trace [2023-12-21 19:03:14,775 INFO L195 NwaCegarLoop]: trace histogram [92, 4, 4, 4, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-21 19:03:14,779 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (12)] Ended with exit code 0 [2023-12-21 19:03:14,977 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 12 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2023-12-21 19:03:14,978 INFO L420 AbstractCegarLoop]: === Iteration 12 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-21 19:03:14,978 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-21 19:03:14,978 INFO L85 PathProgramCache]: Analyzing trace with hash 125271681, now seen corresponding path program 4 times [2023-12-21 19:03:14,979 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-12-21 19:03:14,979 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1886420130] [2023-12-21 19:03:14,979 INFO L93 rtionOrderModulation]: Changing assertion order to TERMS_WITH_SMALL_CONSTANTS_FIRST [2023-12-21 19:03:14,979 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2023-12-21 19:03:14,979 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2023-12-21 19:03:14,980 INFO L229 MonitoredProcess]: Starting monitored process 13 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2023-12-21 19:03:14,980 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (13)] Waiting until timeout for monitored process [2023-12-21 19:03:15,263 INFO L228 tOrderPrioritization]: Assert order TERMS_WITH_SMALL_CONSTANTS_FIRST issued 0 check-sat command(s) [2023-12-21 19:03:15,264 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2023-12-21 19:03:15,283 INFO L262 TraceCheckSpWp]: Trace formula consists of 555 conjuncts, 49 conjunts are in the unsatisfiable core [2023-12-21 19:03:15,286 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-21 19:03:16,446 INFO L134 CoverageAnalysis]: Checked inductivity of 4405 backedges. 2214 proven. 1081 refuted. 0 times theorem prover too weak. 1110 trivial. 0 not checked. [2023-12-21 19:03:16,446 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-12-21 19:03:22,289 INFO L134 CoverageAnalysis]: Checked inductivity of 4405 backedges. 2214 proven. 1081 refuted. 0 times theorem prover too weak. 1110 trivial. 0 not checked. [2023-12-21 19:03:22,289 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-12-21 19:03:22,289 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1886420130] [2023-12-21 19:03:22,289 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1886420130] provided 0 perfect and 2 imperfect interpolant sequences [2023-12-21 19:03:22,290 INFO L185 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2023-12-21 19:03:22,290 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [49, 49] total 97 [2023-12-21 19:03:22,290 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2118287017] [2023-12-21 19:03:22,290 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2023-12-21 19:03:22,290 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 98 states [2023-12-21 19:03:22,290 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-12-21 19:03:22,291 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 98 interpolants. [2023-12-21 19:03:22,293 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=2497, Invalid=7009, Unknown=0, NotChecked=0, Total=9506 [2023-12-21 19:03:22,293 INFO L87 Difference]: Start difference. First operand 284 states and 348 transitions. Second operand has 98 states, 98 states have (on average 1.3061224489795917) internal successors, (128), 97 states have internal predecessors, (128), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-21 19:04:46,787 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-21 19:04:46,788 INFO L93 Difference]: Finished difference Result 2870 states and 3849 transitions. [2023-12-21 19:04:46,788 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 97 states. [2023-12-21 19:04:46,788 INFO L78 Accepts]: Start accepts. Automaton has has 98 states, 98 states have (on average 1.3061224489795917) internal successors, (128), 97 states have internal predecessors, (128), 0 states have call successors, (0), 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 133 [2023-12-21 19:04:46,788 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-21 19:04:46,795 INFO L225 Difference]: With dead ends: 2870 [2023-12-21 19:04:46,795 INFO L226 Difference]: Without dead ends: 2591 [2023-12-21 19:04:46,799 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 311 GetRequests, 168 SyntacticMatches, 0 SemanticMatches, 143 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3384 ImplicationChecksByTransitivity, 49.0s TimeCoverageRelationStatistics Valid=7103, Invalid=13777, Unknown=0, NotChecked=0, Total=20880 [2023-12-21 19:04:46,799 INFO L413 NwaCegarLoop]: 572 mSDtfsCounter, 34888 mSDsluCounter, 20206 mSDsCounter, 0 mSdLazyCounter, 27594 mSolverCounterSat, 9886 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 33.8s Time, 0 mProtectedPredicate, 0 mProtectedAction, 34888 SdHoareTripleChecker+Valid, 20778 SdHoareTripleChecker+Invalid, 37480 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.2s SdHoareTripleChecker+Time, 9886 IncrementalHoareTripleChecker+Valid, 27594 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 38.8s IncrementalHoareTripleChecker+Time [2023-12-21 19:04:46,799 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [34888 Valid, 20778 Invalid, 37480 Unknown, 0 Unchecked, 0.2s Time], IncrementalHoareTripleChecker [9886 Valid, 27594 Invalid, 0 Unknown, 0 Unchecked, 38.8s Time] [2023-12-21 19:04:46,801 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2591 states. [2023-12-21 19:04:46,874 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2591 to 524. [2023-12-21 19:04:46,875 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 524 states, 523 states have (on average 1.2160611854684513) internal successors, (636), 523 states have internal predecessors, (636), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-21 19:04:46,875 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 524 states to 524 states and 636 transitions. [2023-12-21 19:04:46,875 INFO L78 Accepts]: Start accepts. Automaton has 524 states and 636 transitions. Word has length 133 [2023-12-21 19:04:46,876 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-21 19:04:46,876 INFO L495 AbstractCegarLoop]: Abstraction has 524 states and 636 transitions. [2023-12-21 19:04:46,876 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 98 states, 98 states have (on average 1.3061224489795917) internal successors, (128), 97 states have internal predecessors, (128), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-21 19:04:46,876 INFO L276 IsEmpty]: Start isEmpty. Operand 524 states and 636 transitions. [2023-12-21 19:04:46,877 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 230 [2023-12-21 19:04:46,877 INFO L187 NwaCegarLoop]: Found error trace [2023-12-21 19:04:46,877 INFO L195 NwaCegarLoop]: trace histogram [188, 4, 4, 4, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-21 19:04:46,889 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (13)] Forceful destruction successful, exit code 0 [2023-12-21 19:04:47,080 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 13 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2023-12-21 19:04:47,080 INFO L420 AbstractCegarLoop]: === Iteration 13 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-21 19:04:47,081 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-21 19:04:47,081 INFO L85 PathProgramCache]: Analyzing trace with hash 292129409, now seen corresponding path program 5 times [2023-12-21 19:04:47,081 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-12-21 19:04:47,081 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1252792611] [2023-12-21 19:04:47,081 INFO L93 rtionOrderModulation]: Changing assertion order to INSIDE_LOOP_FIRST1 [2023-12-21 19:04:47,082 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2023-12-21 19:04:47,082 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2023-12-21 19:04:47,082 INFO L229 MonitoredProcess]: Starting monitored process 14 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2023-12-21 19:04:47,086 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (14)] Waiting until timeout for monitored process [2023-12-21 19:05:20,208 INFO L228 tOrderPrioritization]: Assert order INSIDE_LOOP_FIRST1 issued 98 check-sat command(s) [2023-12-21 19:05:20,208 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2023-12-21 19:05:20,273 INFO L262 TraceCheckSpWp]: Trace formula consists of 981 conjuncts, 102 conjunts are in the unsatisfiable core [2023-12-21 19:05:20,277 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-21 19:05:24,508 INFO L134 CoverageAnalysis]: Checked inductivity of 17989 backedges. 9032 proven. 4466 refuted. 0 times theorem prover too weak. 4491 trivial. 0 not checked. [2023-12-21 19:05:24,508 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-12-21 19:06:18,023 INFO L134 CoverageAnalysis]: Checked inductivity of 17989 backedges. 9033 proven. 4468 refuted. 0 times theorem prover too weak. 4488 trivial. 0 not checked. [2023-12-21 19:06:18,023 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-12-21 19:06:18,024 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1252792611] [2023-12-21 19:06:18,024 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1252792611] provided 0 perfect and 2 imperfect interpolant sequences [2023-12-21 19:06:18,024 INFO L185 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2023-12-21 19:06:18,024 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [100, 102] total 200 [2023-12-21 19:06:18,024 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1743222581] [2023-12-21 19:06:18,024 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2023-12-21 19:06:18,024 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 200 states [2023-12-21 19:06:18,024 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-12-21 19:06:18,027 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 200 interpolants. [2023-12-21 19:06:18,031 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9629, Invalid=30171, Unknown=0, NotChecked=0, Total=39800 [2023-12-21 19:06:18,031 INFO L87 Difference]: Start difference. First operand 524 states and 636 transitions. Second operand has 200 states, 200 states have (on average 1.14) internal successors, (228), 200 states have internal predecessors, (228), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-21 19:07:04,075 WARN L293 SmtUtils]: Spent 5.96s on a formula simplification. DAG size of input: 481 DAG size of output: 480 (called from [L 391] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate) [2023-12-21 19:07:09,696 WARN L293 SmtUtils]: Spent 5.26s on a formula simplification. DAG size of input: 480 DAG size of output: 353 (called from [L 391] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate) [2023-12-21 19:07:22,057 WARN L293 SmtUtils]: Spent 5.86s on a formula simplification. DAG size of input: 476 DAG size of output: 475 (called from [L 391] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate) [2023-12-21 19:07:28,229 WARN L293 SmtUtils]: Spent 5.31s on a formula simplification. DAG size of input: 473 DAG size of output: 355 (called from [L 391] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate) [2023-12-21 19:07:40,813 WARN L293 SmtUtils]: Spent 11.16s on a formula simplification that was a NOOP. DAG size: 478 (called from [L 391] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate) [2023-12-21 19:07:53,329 WARN L293 SmtUtils]: Spent 5.92s on a formula simplification. DAG size of input: 471 DAG size of output: 470 (called from [L 391] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate) [2023-12-21 19:07:59,674 WARN L293 SmtUtils]: Spent 5.41s on a formula simplification. DAG size of input: 473 DAG size of output: 361 (called from [L 391] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate) [2023-12-21 19:08:11,389 WARN L293 SmtUtils]: Spent 11.28s on a formula simplification that was a NOOP. DAG size: 478 (called from [L 391] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate) [2023-12-21 19:08:24,679 WARN L293 SmtUtils]: Spent 10.43s on a formula simplification that was a NOOP. DAG size: 473 (called from [L 391] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate) [2023-12-21 19:08:37,562 WARN L293 SmtUtils]: Spent 5.99s on a formula simplification. DAG size of input: 466 DAG size of output: 465 (called from [L 391] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate) [2023-12-21 19:08:43,965 WARN L293 SmtUtils]: Spent 5.48s on a formula simplification. DAG size of input: 472 DAG size of output: 354 (called from [L 391] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate) [2023-12-21 19:08:55,611 WARN L293 SmtUtils]: Spent 10.11s on a formula simplification that was a NOOP. DAG size: 473 (called from [L 391] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate) [2023-12-21 19:09:06,602 WARN L293 SmtUtils]: Spent 8.67s on a formula simplification that was a NOOP. DAG size: 469 (called from [L 391] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate) [2023-12-21 19:09:17,766 WARN L293 SmtUtils]: Spent 5.31s on a formula simplification. DAG size of input: 461 DAG size of output: 460 (called from [L 391] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate) [2023-12-21 19:09:35,718 WARN L293 SmtUtils]: Spent 9.81s on a formula simplification that was a NOOP. DAG size: 469 (called from [L 391] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate) [2023-12-21 19:09:47,002 WARN L293 SmtUtils]: Spent 8.60s on a formula simplification that was a NOOP. DAG size: 464 (called from [L 391] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate) [2023-12-21 19:10:04,410 WARN L293 SmtUtils]: Spent 5.16s on a formula simplification. DAG size of input: 462 DAG size of output: 344 (called from [L 391] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate) [2023-12-21 19:10:15,344 WARN L293 SmtUtils]: Spent 9.18s on a formula simplification that was a NOOP. DAG size: 464 (called from [L 391] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate) [2023-12-21 19:10:27,567 WARN L293 SmtUtils]: Spent 9.00s on a formula simplification that was a NOOP. DAG size: 459 (called from [L 391] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate) [2023-12-21 19:10:39,789 WARN L293 SmtUtils]: Spent 5.18s on a formula simplification. DAG size of input: 451 DAG size of output: 450 (called from [L 391] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate) [2023-12-21 19:10:59,481 WARN L293 SmtUtils]: Spent 11.07s on a formula simplification that was a NOOP. DAG size: 459 (called from [L 391] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate) [2023-12-21 19:11:12,838 WARN L293 SmtUtils]: Spent 9.69s on a formula simplification that was a NOOP. DAG size: 454 (called from [L 391] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate) [2023-12-21 19:11:24,637 WARN L293 SmtUtils]: Spent 5.09s on a formula simplification. DAG size of input: 446 DAG size of output: 445 (called from [L 391] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate) [2023-12-21 19:11:42,842 WARN L293 SmtUtils]: Spent 9.32s on a formula simplification that was a NOOP. DAG size: 454 (called from [L 391] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate) [2023-12-21 19:11:56,018 WARN L293 SmtUtils]: Spent 9.19s on a formula simplification that was a NOOP. DAG size: 449 (called from [L 391] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate) [2023-12-21 19:12:07,994 WARN L293 SmtUtils]: Spent 5.04s on a formula simplification. DAG size of input: 441 DAG size of output: 440 (called from [L 391] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate) [2023-12-21 19:12:26,741 WARN L293 SmtUtils]: Spent 9.92s on a formula simplification that was a NOOP. DAG size: 449 (called from [L 391] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate) [2023-12-21 19:12:39,361 WARN L293 SmtUtils]: Spent 8.34s on a formula simplification that was a NOOP. DAG size: 444 (called from [L 391] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate) [2023-12-21 19:13:08,489 WARN L293 SmtUtils]: Spent 8.54s on a formula simplification that was a NOOP. DAG size: 444 (called from [L 391] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate) [2023-12-21 19:13:21,968 WARN L293 SmtUtils]: Spent 8.59s on a formula simplification that was a NOOP. DAG size: 439 (called from [L 391] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate) [2023-12-21 19:13:50,687 WARN L293 SmtUtils]: Spent 8.50s on a formula simplification that was a NOOP. DAG size: 439 (called from [L 391] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate) [2023-12-21 19:14:04,321 WARN L293 SmtUtils]: Spent 8.18s on a formula simplification that was a NOOP. DAG size: 434 (called from [L 391] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate) [2023-12-21 19:14:35,225 WARN L293 SmtUtils]: Spent 9.25s on a formula simplification that was a NOOP. DAG size: 434 (called from [L 391] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate) [2023-12-21 19:14:48,835 WARN L293 SmtUtils]: Spent 8.34s on a formula simplification that was a NOOP. DAG size: 429 (called from [L 391] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate) [2023-12-21 19:15:15,393 WARN L293 SmtUtils]: Spent 7.47s on a formula simplification that was a NOOP. DAG size: 429 (called from [L 391] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate) [2023-12-21 19:15:29,126 WARN L293 SmtUtils]: Spent 7.85s on a formula simplification that was a NOOP. DAG size: 424 (called from [L 391] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate) [2023-12-21 19:15:58,624 WARN L293 SmtUtils]: Spent 7.88s on a formula simplification that was a NOOP. DAG size: 424 (called from [L 391] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate) [2023-12-21 19:16:11,477 WARN L293 SmtUtils]: Spent 6.85s on a formula simplification that was a NOOP. DAG size: 419 (called from [L 391] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate) [2023-12-21 19:16:44,492 WARN L293 SmtUtils]: Spent 10.46s on a formula simplification that was a NOOP. DAG size: 419 (called from [L 391] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate) [2023-12-21 19:16:58,711 WARN L293 SmtUtils]: Spent 7.68s on a formula simplification that was a NOOP. DAG size: 414 (called from [L 391] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate) Received shutdown request... [2023-12-21 19:17:16,159 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 [2023-12-21 19:17:16,168 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 170 states. [2023-12-21 19:17:16,174 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 (14)] Timeout while monitored process is still running, waiting 1000 ms for graceful end [2023-12-21 19:17:16,175 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 622 GetRequests, 258 SyntacticMatches, 0 SemanticMatches, 363 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 31864 ImplicationChecksByTransitivity, 665.5s TimeCoverageRelationStatistics Valid=32290, Invalid=100570, Unknown=0, NotChecked=0, Total=132860 [2023-12-21 19:17:16,176 INFO L413 NwaCegarLoop]: 4 mSDtfsCounter, 3835 mSDsluCounter, 115 mSDsCounter, 0 mSdLazyCounter, 10979 mSolverCounterSat, 1803 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 37.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 3835 SdHoareTripleChecker+Valid, 119 SdHoareTripleChecker+Invalid, 12782 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 1803 IncrementalHoareTripleChecker+Valid, 10979 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 41.3s IncrementalHoareTripleChecker+Time [2023-12-21 19:17:16,176 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [3835 Valid, 119 Invalid, 12782 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [1803 Valid, 10979 Invalid, 0 Unknown, 0 Unchecked, 41.3s Time] [2023-12-21 19:17:16,177 INFO L805 garLoopResultBuilder]: Registering result TIMEOUT for location ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION (0 of 1 remaining) [2023-12-21 19:17:16,202 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 (14)] Ended with exit code 0 [2023-12-21 19:17:16,396 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 14 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2023-12-21 19:17:16,396 WARN L619 AbstractCegarLoop]: Verification canceled: while NwaCegarLoop was constructing difference of abstraction (524states) and FLOYD_HOARE automaton (currently 170 states, 200 states before enhancement),while PredicateUnifier was unifying predicates,while SimplifyDDA2 was simplifying a ∧-83-2-1 term,while SimplifyDDA2 was simplifying 2 xjuncts wrt. a ∧-55-2-1 context. [2023-12-21 19:17:16,400 INFO L445 BasicCegarLoop]: Path program histogram: [5, 2, 2, 1, 1, 1, 1] [2023-12-21 19:17:16,402 INFO L179 ceAbstractionStarter]: Computing trace abstraction results [2023-12-21 19:17:16,404 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 21.12 07:17:16 BoogieIcfgContainer [2023-12-21 19:17:16,406 INFO L131 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2023-12-21 19:17:16,407 INFO L158 Benchmark]: Toolchain (without parser) took 875767.91ms. Allocated memory was 203.4MB in the beginning and 319.8MB in the end (delta: 116.4MB). Free memory was 160.0MB in the beginning and 117.9MB in the end (delta: 42.2MB). Peak memory consumption was 160.0MB. Max. memory is 8.0GB. [2023-12-21 19:17:16,407 INFO L158 Benchmark]: CDTParser took 0.14ms. Allocated memory is still 203.4MB. Free memory is still 161.6MB. There was no memory consumed. Max. memory is 8.0GB. [2023-12-21 19:17:16,407 INFO L158 Benchmark]: CACSL2BoogieTranslator took 163.91ms. Allocated memory is still 203.4MB. Free memory was 159.6MB in the beginning and 147.6MB in the end (delta: 12.1MB). Peak memory consumption was 11.5MB. Max. memory is 8.0GB. [2023-12-21 19:17:16,407 INFO L158 Benchmark]: Boogie Procedure Inliner took 28.56ms. Allocated memory is still 203.4MB. Free memory was 147.6MB in the beginning and 145.7MB in the end (delta: 1.8MB). Peak memory consumption was 2.1MB. Max. memory is 8.0GB. [2023-12-21 19:17:16,407 INFO L158 Benchmark]: Boogie Preprocessor took 29.48ms. Allocated memory is still 203.4MB. Free memory was 145.7MB in the beginning and 143.1MB in the end (delta: 2.6MB). Peak memory consumption was 2.1MB. Max. memory is 8.0GB. [2023-12-21 19:17:16,407 INFO L158 Benchmark]: RCFGBuilder took 514.00ms. Allocated memory is still 203.4MB. Free memory was 143.1MB in the beginning and 126.1MB in the end (delta: 17.0MB). Peak memory consumption was 17.8MB. Max. memory is 8.0GB. [2023-12-21 19:17:16,408 INFO L158 Benchmark]: TraceAbstraction took 875027.40ms. Allocated memory was 203.4MB in the beginning and 319.8MB in the end (delta: 116.4MB). Free memory was 125.3MB in the beginning and 117.9MB in the end (delta: 7.4MB). Peak memory consumption was 125.4MB. Max. memory is 8.0GB. [2023-12-21 19:17:16,408 INFO L338 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.14ms. Allocated memory is still 203.4MB. Free memory is still 161.6MB. There was no memory consumed. Max. memory is 8.0GB. * CACSL2BoogieTranslator took 163.91ms. Allocated memory is still 203.4MB. Free memory was 159.6MB in the beginning and 147.6MB in the end (delta: 12.1MB). Peak memory consumption was 11.5MB. Max. memory is 8.0GB. * Boogie Procedure Inliner took 28.56ms. Allocated memory is still 203.4MB. Free memory was 147.6MB in the beginning and 145.7MB in the end (delta: 1.8MB). Peak memory consumption was 2.1MB. Max. memory is 8.0GB. * Boogie Preprocessor took 29.48ms. Allocated memory is still 203.4MB. Free memory was 145.7MB in the beginning and 143.1MB in the end (delta: 2.6MB). Peak memory consumption was 2.1MB. Max. memory is 8.0GB. * RCFGBuilder took 514.00ms. Allocated memory is still 203.4MB. Free memory was 143.1MB in the beginning and 126.1MB in the end (delta: 17.0MB). Peak memory consumption was 17.8MB. Max. memory is 8.0GB. * TraceAbstraction took 875027.40ms. Allocated memory was 203.4MB in the beginning and 319.8MB in the end (delta: 116.4MB). Free memory was 125.3MB in the beginning and 117.9MB in the end (delta: 7.4MB). Peak memory consumption was 125.4MB. 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: 10]: Timeout (TraceAbstraction) Unable to prove that a call to reach_error is unreachable (line 10). Cancelled while NwaCegarLoop was constructing difference of abstraction (524states) and FLOYD_HOARE automaton (currently 170 states, 200 states before enhancement),while PredicateUnifier was unifying predicates,while SimplifyDDA2 was simplifying a ∧-83-2-1 term,while SimplifyDDA2 was simplifying 2 xjuncts wrt. a ∧-55-2-1 context. - StatisticsResult: Ultimate Automizer benchmark data CFG has 1 procedures, 32 locations, 1 error locations. Started 1 CEGAR loops. OverallTime: 875.0s, OverallIterations: 13, TraceHistogramMax: 188, PathProgramHistogramMax: 5, EmptinessCheckTime: 0.0s, AutomataDifference: 769.3s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 51666 SdHoareTripleChecker+Valid, 99.9s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 51666 mSDsluCounter, 28090 SdHoareTripleChecker+Invalid, 87.9s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 26843 mSDsCounter, 15577 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 48175 IncrementalHoareTripleChecker+Invalid, 63752 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 15577 mSolverCounterUnsat, 1247 mSDtfsCounter, 48175 mSolverCounterSat, 0.3s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown, PredicateUnifierStatistics: 0 DeclaredPredicates, 1493 GetRequests, 834 SyntacticMatches, 0 SemanticMatches, 658 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 36334 ImplicationChecksByTransitivity, 722.9s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=524occurred in iteration=12, InterpolantAutomatonStates: 220, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: 0.2s AutomataMinimizationTime, 12 MinimizatonAttempts, 3350 StatesRemovedByMinimization, 11 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.2s SsaConstructionTime, 33.6s SatisfiabilityAnalysisTime, 68.4s InterpolantComputationTime, 688 NumberOfCodeBlocks, 596 NumberOfCodeBlocksAsserted, 112 NumberOfCheckSat, 1234 ConstructedInterpolants, 0 QuantifiedInterpolants, 4820 SizeOfPredicates, 5 NumberOfNonLiveVariables, 2424 ConjunctsInSsa, 222 ConjunctsInUnsatCore, 20 InterpolantComputations, 6 PerfectInterpolantSequences, 35959/47695 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