/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/hardness-nfm22/hardness_operatoramount_amount500_file-90.i -------------------------------------------------------------------------------- This is Ultimate 0.2.4-tmp.fs.bitabs-eval-d9c3e40-m [2023-12-24 10:15:08,433 INFO L188 SettingsManager]: Resetting all preferences to default values... [2023-12-24 10:15:08,497 INFO L114 SettingsManager]: Loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/settings/default/automizer/svcomp-Reach-32bit-Automizer_Bitvector.epf [2023-12-24 10:15:08,500 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2023-12-24 10:15:08,501 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2023-12-24 10:15:08,525 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2023-12-24 10:15:08,525 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2023-12-24 10:15:08,525 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2023-12-24 10:15:08,526 INFO L151 SettingsManager]: Preferences of Boogie Preprocessor differ from their defaults: [2023-12-24 10:15:08,529 INFO L153 SettingsManager]: * Use memory slicer=true [2023-12-24 10:15:08,529 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2023-12-24 10:15:08,529 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2023-12-24 10:15:08,530 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2023-12-24 10:15:08,531 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2023-12-24 10:15:08,531 INFO L153 SettingsManager]: * Use SBE=true [2023-12-24 10:15:08,531 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2023-12-24 10:15:08,532 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2023-12-24 10:15:08,532 INFO L153 SettingsManager]: * sizeof long=4 [2023-12-24 10:15:08,532 INFO L153 SettingsManager]: * sizeof POINTER=4 [2023-12-24 10:15:08,532 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2023-12-24 10:15:08,533 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2023-12-24 10:15:08,533 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2023-12-24 10:15:08,534 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2023-12-24 10:15:08,534 INFO L153 SettingsManager]: * Adapt memory model on pointer casts if necessary=true [2023-12-24 10:15:08,534 INFO L153 SettingsManager]: * Use bitvectors instead of ints=true [2023-12-24 10:15:08,534 INFO L153 SettingsManager]: * Allow undefined functions=false [2023-12-24 10:15:08,534 INFO L153 SettingsManager]: * Memory model=HoenickeLindenmann_4ByteResolution [2023-12-24 10:15:08,534 INFO L153 SettingsManager]: * sizeof long double=12 [2023-12-24 10:15:08,535 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2023-12-24 10:15:08,535 INFO L153 SettingsManager]: * Use constant arrays=true [2023-12-24 10:15:08,535 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2023-12-24 10:15:08,536 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2023-12-24 10:15:08,536 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2023-12-24 10:15:08,536 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2023-12-24 10:15:08,536 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2023-12-24 10:15:08,536 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2023-12-24 10:15:08,536 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2023-12-24 10:15:08,536 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2023-12-24 10:15:08,537 INFO L153 SettingsManager]: * Trace refinement strategy=WOLF [2023-12-24 10:15:08,537 INFO L153 SettingsManager]: * Command for external solver=cvc4 --incremental --print-success --lang smt [2023-12-24 10:15:08,537 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2023-12-24 10:15:08,540 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2023-12-24 10:15:08,540 INFO L153 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2023-12-24 10:15:08,540 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2023-12-24 10:15:08,540 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2023-12-24 10:15:08,541 INFO L153 SettingsManager]: * Logic for external solver=AUFBV [2023-12-24 10:15:08,541 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release [2023-12-24 10:15:08,729 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2023-12-24 10:15:08,744 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2023-12-24 10:15:08,745 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2023-12-24 10:15:08,746 INFO L270 PluginConnector]: Initializing CDTParser... [2023-12-24 10:15:08,746 INFO L274 PluginConnector]: CDTParser initialized [2023-12-24 10:15:08,748 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/hardness-nfm22/hardness_operatoramount_amount500_file-90.i [2023-12-24 10:15:09,702 INFO L533 CDTParser]: Created temporary CDT project at NULL [2023-12-24 10:15:09,941 INFO L384 CDTParser]: Found 1 translation units. [2023-12-24 10:15:09,941 INFO L180 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/hardness-nfm22/hardness_operatoramount_amount500_file-90.i [2023-12-24 10:15:09,954 INFO L427 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/fc4190dba/4445e6f44cf64e428440d54a34077bed/FLAGca651208c [2023-12-24 10:15:09,966 INFO L435 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/fc4190dba/4445e6f44cf64e428440d54a34077bed [2023-12-24 10:15:09,968 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2023-12-24 10:15:09,969 INFO L133 ToolchainWalker]: Walking toolchain with 5 elements. [2023-12-24 10:15:09,971 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2023-12-24 10:15:09,971 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2023-12-24 10:15:09,975 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2023-12-24 10:15:09,975 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 24.12 10:15:09" (1/1) ... [2023-12-24 10:15:09,976 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@2d40b30a and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.12 10:15:09, skipping insertion in model container [2023-12-24 10:15:09,976 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 24.12 10:15:09" (1/1) ... [2023-12-24 10:15:10,022 INFO L177 MainTranslator]: Built tables and reachable declarations [2023-12-24 10:15:10,143 WARN L239 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/trunk/examples/svcomp/hardness-nfm22/hardness_operatoramount_amount500_file-90.i[916,929] [2023-12-24 10:15:10,348 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-12-24 10:15:10,364 INFO L202 MainTranslator]: Completed pre-run [2023-12-24 10:15:10,373 WARN L239 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/trunk/examples/svcomp/hardness-nfm22/hardness_operatoramount_amount500_file-90.i[916,929] [2023-12-24 10:15:10,475 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-12-24 10:15:10,489 INFO L206 MainTranslator]: Completed translation [2023-12-24 10:15:10,489 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.12 10:15:10 WrapperNode [2023-12-24 10:15:10,490 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2023-12-24 10:15:10,490 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2023-12-24 10:15:10,491 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2023-12-24 10:15:10,491 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2023-12-24 10:15:10,495 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.12 10:15:10" (1/1) ... [2023-12-24 10:15:10,515 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.12 10:15:10" (1/1) ... [2023-12-24 10:15:10,558 INFO L138 Inliner]: procedures = 27, calls = 99, calls flagged for inlining = 8, calls inlined = 8, statements flattened = 628 [2023-12-24 10:15:10,558 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2023-12-24 10:15:10,559 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2023-12-24 10:15:10,559 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2023-12-24 10:15:10,559 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2023-12-24 10:15:10,566 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.12 10:15:10" (1/1) ... [2023-12-24 10:15:10,566 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.12 10:15:10" (1/1) ... [2023-12-24 10:15:10,578 INFO L184 PluginConnector]: Executing the observer MemorySlicer from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.12 10:15:10" (1/1) ... [2023-12-24 10:15:10,611 INFO L175 MemorySlicer]: Split 2 memory accesses to 1 slices as follows [2]. 100 percent of accesses are in the largest equivalence class. The 2 initializations are split as follows [2]. The 0 writes are split as follows [0]. [2023-12-24 10:15:10,611 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.12 10:15:10" (1/1) ... [2023-12-24 10:15:10,611 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.12 10:15:10" (1/1) ... [2023-12-24 10:15:10,646 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.12 10:15:10" (1/1) ... [2023-12-24 10:15:10,660 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.12 10:15:10" (1/1) ... [2023-12-24 10:15:10,666 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.12 10:15:10" (1/1) ... [2023-12-24 10:15:10,678 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.12 10:15:10" (1/1) ... [2023-12-24 10:15:10,697 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2023-12-24 10:15:10,699 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2023-12-24 10:15:10,699 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2023-12-24 10:15:10,699 INFO L274 PluginConnector]: RCFGBuilder initialized [2023-12-24 10:15:10,700 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.12 10:15:10" (1/1) ... [2023-12-24 10:15:10,704 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2023-12-24 10:15:10,711 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-12-24 10:15:10,721 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) [2023-12-24 10:15:10,746 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2023-12-24 10:15:10,746 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE1#0 [2023-12-24 10:15:10,746 INFO L130 BoogieDeclarations]: Found specification of procedure assume_abort_if_not [2023-12-24 10:15:10,746 INFO L138 BoogieDeclarations]: Found implementation of procedure assume_abort_if_not [2023-12-24 10:15:10,748 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2023-12-24 10:15:10,748 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2023-12-24 10:15:10,744 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 [2023-12-24 10:15:10,861 INFO L241 CfgBuilder]: Building ICFG [2023-12-24 10:15:10,863 INFO L267 CfgBuilder]: Building CFG for each procedure with an implementation [2023-12-24 10:16:26,937 INFO L282 CfgBuilder]: Performing block encoding [2023-12-24 10:16:27,016 INFO L304 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2023-12-24 10:16:27,016 INFO L309 CfgBuilder]: Removed 1 assume(true) statements. [2023-12-24 10:16:27,016 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 24.12 10:16:27 BoogieIcfgContainer [2023-12-24 10:16:27,017 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2023-12-24 10:16:27,019 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2023-12-24 10:16:27,019 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2023-12-24 10:16:27,022 INFO L274 PluginConnector]: TraceAbstraction initialized [2023-12-24 10:16:27,022 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 24.12 10:15:09" (1/3) ... [2023-12-24 10:16:27,023 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@36dfd9a7 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 24.12 10:16:27, skipping insertion in model container [2023-12-24 10:16:27,023 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.12 10:15:10" (2/3) ... [2023-12-24 10:16:27,023 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@36dfd9a7 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 24.12 10:16:27, skipping insertion in model container [2023-12-24 10:16:27,024 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 24.12 10:16:27" (3/3) ... [2023-12-24 10:16:27,025 INFO L112 eAbstractionObserver]: Analyzing ICFG hardness_operatoramount_amount500_file-90.i [2023-12-24 10:16:27,038 INFO L204 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2023-12-24 10:16:27,039 INFO L163 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2023-12-24 10:16:27,090 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2023-12-24 10:16:27,098 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;@5e3cabad, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2023-12-24 10:16:27,098 INFO L358 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2023-12-24 10:16:27,104 INFO L276 IsEmpty]: Start isEmpty. Operand has 256 states, 167 states have (on average 1.5508982035928143) internal successors, (259), 168 states have internal predecessors, (259), 86 states have call successors, (86), 1 states have call predecessors, (86), 1 states have return successors, (86), 86 states have call predecessors, (86), 86 states have call successors, (86) [2023-12-24 10:16:27,136 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 557 [2023-12-24 10:16:27,136 INFO L187 NwaCegarLoop]: Found error trace [2023-12-24 10:16:27,138 INFO L195 NwaCegarLoop]: trace histogram [86, 86, 86, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-24 10:16:27,138 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-24 10:16:27,150 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-24 10:16:27,151 INFO L85 PathProgramCache]: Analyzing trace with hash 1268943169, now seen corresponding path program 1 times [2023-12-24 10:16:27,165 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-12-24 10:16:27,165 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [408741963] [2023-12-24 10:16:27,165 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-24 10:16:27,166 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 [2023-12-24 10:16:27,166 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2023-12-24 10:16:27,168 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) [2023-12-24 10:16:27,200 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 [2023-12-24 10:16:30,786 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-24 10:16:30,946 INFO L262 TraceCheckSpWp]: Trace formula consists of 934 conjuncts, 1 conjunts are in the unsatisfiable core [2023-12-24 10:16:30,961 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-24 10:16:31,063 INFO L134 CoverageAnalysis]: Checked inductivity of 14620 backedges. 7346 proven. 0 refuted. 0 times theorem prover too weak. 7274 trivial. 0 not checked. [2023-12-24 10:16:31,063 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-12-24 10:16:31,064 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-12-24 10:16:31,064 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [408741963] [2023-12-24 10:16:31,064 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [408741963] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-24 10:16:31,065 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-24 10:16:31,065 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2023-12-24 10:16:31,066 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [450678305] [2023-12-24 10:16:31,066 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-24 10:16:31,072 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2023-12-24 10:16:31,072 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-12-24 10:16:31,110 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2023-12-24 10:16:31,110 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2023-12-24 10:16:31,113 INFO L87 Difference]: Start difference. First operand has 256 states, 167 states have (on average 1.5508982035928143) internal successors, (259), 168 states have internal predecessors, (259), 86 states have call successors, (86), 1 states have call predecessors, (86), 1 states have return successors, (86), 86 states have call predecessors, (86), 86 states have call successors, (86) Second operand has 2 states, 2 states have (on average 66.5) internal successors, (133), 2 states have internal predecessors, (133), 2 states have call successors, (86), 2 states have call predecessors, (86), 2 states have return successors, (86), 2 states have call predecessors, (86), 2 states have call successors, (86) [2023-12-24 10:16:37,717 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 6.43s for a HTC check with result UNKNOWN. Formula has sorts [Bool, FloatingPoint, RoundingMode, Real, BitVec], hasArrays=false, hasNonlinArith=false, quantifiers [] [2023-12-24 10:16:37,720 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-24 10:16:37,720 INFO L93 Difference]: Finished difference Result 509 states and 946 transitions. [2023-12-24 10:16:38,601 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2023-12-24 10:16:38,602 INFO L78 Accepts]: Start accepts. Automaton has has 2 states, 2 states have (on average 66.5) internal successors, (133), 2 states have internal predecessors, (133), 2 states have call successors, (86), 2 states have call predecessors, (86), 2 states have return successors, (86), 2 states have call predecessors, (86), 2 states have call successors, (86) Word has length 556 [2023-12-24 10:16:38,603 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-24 10:16:38,612 INFO L225 Difference]: With dead ends: 509 [2023-12-24 10:16:38,612 INFO L226 Difference]: Without dead ends: 254 [2023-12-24 10:16:38,616 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 555 GetRequests, 555 SyntacticMatches, 0 SemanticMatches, 0 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2023-12-24 10:16:38,618 INFO L413 NwaCegarLoop]: 423 mSDtfsCounter, 0 mSDsluCounter, 0 mSDsCounter, 0 mSdLazyCounter, 2 mSolverCounterSat, 0 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 6.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 423 SdHoareTripleChecker+Invalid, 3 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 2 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 6.6s IncrementalHoareTripleChecker+Time [2023-12-24 10:16:38,619 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 423 Invalid, 3 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 2 Invalid, 1 Unknown, 0 Unchecked, 6.6s Time] [2023-12-24 10:16:38,632 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 254 states. [2023-12-24 10:16:38,674 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 254 to 254. [2023-12-24 10:16:38,675 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 254 states, 166 states have (on average 1.5301204819277108) internal successors, (254), 166 states have internal predecessors, (254), 86 states have call successors, (86), 1 states have call predecessors, (86), 1 states have return successors, (86), 86 states have call predecessors, (86), 86 states have call successors, (86) [2023-12-24 10:16:38,678 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 254 states to 254 states and 426 transitions. [2023-12-24 10:16:38,679 INFO L78 Accepts]: Start accepts. Automaton has 254 states and 426 transitions. Word has length 556 [2023-12-24 10:16:38,679 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-24 10:16:38,679 INFO L495 AbstractCegarLoop]: Abstraction has 254 states and 426 transitions. [2023-12-24 10:16:38,679 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 2 states, 2 states have (on average 66.5) internal successors, (133), 2 states have internal predecessors, (133), 2 states have call successors, (86), 2 states have call predecessors, (86), 2 states have return successors, (86), 2 states have call predecessors, (86), 2 states have call successors, (86) [2023-12-24 10:16:38,680 INFO L276 IsEmpty]: Start isEmpty. Operand 254 states and 426 transitions. [2023-12-24 10:16:38,687 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 557 [2023-12-24 10:16:38,687 INFO L187 NwaCegarLoop]: Found error trace [2023-12-24 10:16:38,687 INFO L195 NwaCegarLoop]: trace histogram [86, 86, 86, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-24 10:16:38,769 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 [2023-12-24 10:16:38,900 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 [2023-12-24 10:16:38,901 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-24 10:16:38,901 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-24 10:16:38,901 INFO L85 PathProgramCache]: Analyzing trace with hash 1148847157, now seen corresponding path program 1 times [2023-12-24 10:16:38,903 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-12-24 10:16:38,903 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [2088866163] [2023-12-24 10:16:38,903 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-24 10:16:38,903 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 [2023-12-24 10:16:38,903 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2023-12-24 10:16:38,905 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) [2023-12-24 10:16:38,908 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 [2023-12-24 10:16:42,305 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-24 10:16:42,487 INFO L262 TraceCheckSpWp]: Trace formula consists of 934 conjuncts, 5 conjunts are in the unsatisfiable core [2023-12-24 10:16:42,504 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-24 10:17:43,517 INFO L134 CoverageAnalysis]: Checked inductivity of 14620 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 14620 trivial. 0 not checked. [2023-12-24 10:17:43,517 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-12-24 10:17:43,517 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-12-24 10:17:43,517 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [2088866163] [2023-12-24 10:17:43,517 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [2088866163] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-24 10:17:43,517 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-24 10:17:43,518 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2023-12-24 10:17:43,518 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1907857603] [2023-12-24 10:17:43,518 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-24 10:17:43,519 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2023-12-24 10:17:43,519 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-12-24 10:17:43,520 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2023-12-24 10:17:43,520 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2023-12-24 10:17:43,521 INFO L87 Difference]: Start difference. First operand 254 states and 426 transitions. Second operand has 4 states, 4 states have (on average 32.25) internal successors, (129), 3 states have internal predecessors, (129), 1 states have call successors, (86), 1 states have call predecessors, (86), 1 states have return successors, (86), 1 states have call predecessors, (86), 1 states have call successors, (86) [2023-12-24 10:17:50,816 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 6.25s for a HTC check with result UNKNOWN. Formula has sorts [Bool, FloatingPoint, RoundingMode, Real, BitVec], hasArrays=false, hasNonlinArith=false, quantifiers [] [2023-12-24 10:17:54,834 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.02s for a HTC check with result UNKNOWN. Formula has sorts [Bool, FloatingPoint, RoundingMode, Real, BitVec], hasArrays=false, hasNonlinArith=false, quantifiers [] [2023-12-24 10:17:57,595 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.77s for a HTC check with result INVALID. Formula has sorts [Bool, FloatingPoint, BitVec], hasArrays=false, hasNonlinArith=false, quantifiers [] [2023-12-24 10:18:04,140 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 6.40s for a HTC check with result UNKNOWN. Formula has sorts [Bool, FloatingPoint, RoundingMode, Real, BitVec], hasArrays=false, hasNonlinArith=false, quantifiers [] [2023-12-24 10:18:08,151 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.01s for a HTC check with result UNKNOWN. Formula has sorts [Bool, FloatingPoint, RoundingMode, Real, BitVec], hasArrays=false, hasNonlinArith=false, quantifiers [] [2023-12-24 10:18:12,170 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.02s for a HTC check with result UNKNOWN. Formula has sorts [Bool, FloatingPoint, RoundingMode, Real, BitVec], hasArrays=false, hasNonlinArith=false, quantifiers [] [2023-12-24 10:18:12,171 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-24 10:18:12,171 INFO L93 Difference]: Finished difference Result 761 states and 1277 transitions. [2023-12-24 10:18:13,126 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2023-12-24 10:18:13,126 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 32.25) internal successors, (129), 3 states have internal predecessors, (129), 1 states have call successors, (86), 1 states have call predecessors, (86), 1 states have return successors, (86), 1 states have call predecessors, (86), 1 states have call successors, (86) Word has length 556 [2023-12-24 10:18:13,128 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-24 10:18:13,131 INFO L225 Difference]: With dead ends: 761 [2023-12-24 10:18:13,131 INFO L226 Difference]: Without dead ends: 508 [2023-12-24 10:18:13,132 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 556 GetRequests, 553 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.8s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2023-12-24 10:18:13,133 INFO L413 NwaCegarLoop]: 421 mSDtfsCounter, 371 mSDsluCounter, 839 mSDsCounter, 0 mSdLazyCounter, 13 mSolverCounterSat, 173 mSolverCounterUnsat, 5 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 27.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 371 SdHoareTripleChecker+Valid, 1260 SdHoareTripleChecker+Invalid, 191 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 173 IncrementalHoareTripleChecker+Valid, 13 IncrementalHoareTripleChecker+Invalid, 5 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 28.3s IncrementalHoareTripleChecker+Time [2023-12-24 10:18:13,133 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [371 Valid, 1260 Invalid, 191 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [173 Valid, 13 Invalid, 5 Unknown, 0 Unchecked, 28.3s Time] [2023-12-24 10:18:13,134 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 508 states. [2023-12-24 10:18:13,195 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 508 to 402. [2023-12-24 10:18:13,197 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 402 states, 227 states have (on average 1.4140969162995596) internal successors, (321), 227 states have internal predecessors, (321), 172 states have call successors, (172), 2 states have call predecessors, (172), 2 states have return successors, (172), 172 states have call predecessors, (172), 172 states have call successors, (172) [2023-12-24 10:18:13,200 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 402 states to 402 states and 665 transitions. [2023-12-24 10:18:13,201 INFO L78 Accepts]: Start accepts. Automaton has 402 states and 665 transitions. Word has length 556 [2023-12-24 10:18:13,204 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-24 10:18:13,204 INFO L495 AbstractCegarLoop]: Abstraction has 402 states and 665 transitions. [2023-12-24 10:18:13,204 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 32.25) internal successors, (129), 3 states have internal predecessors, (129), 1 states have call successors, (86), 1 states have call predecessors, (86), 1 states have return successors, (86), 1 states have call predecessors, (86), 1 states have call successors, (86) [2023-12-24 10:18:13,204 INFO L276 IsEmpty]: Start isEmpty. Operand 402 states and 665 transitions. [2023-12-24 10:18:13,212 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 558 [2023-12-24 10:18:13,212 INFO L187 NwaCegarLoop]: Found error trace [2023-12-24 10:18:13,212 INFO L195 NwaCegarLoop]: trace histogram [86, 86, 86, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-24 10:18:13,303 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (3)] Ended with exit code 0 [2023-12-24 10:18:13,428 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 [2023-12-24 10:18:13,428 INFO L420 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-24 10:18:13,429 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-24 10:18:13,429 INFO L85 PathProgramCache]: Analyzing trace with hash -1767769541, now seen corresponding path program 1 times [2023-12-24 10:18:13,430 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-12-24 10:18:13,430 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1471395365] [2023-12-24 10:18:13,430 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-24 10:18:13,430 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2023-12-24 10:18:13,430 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2023-12-24 10:18:13,431 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) [2023-12-24 10:18:13,432 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 [2023-12-24 10:18:16,880 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-24 10:18:17,028 INFO L262 TraceCheckSpWp]: Trace formula consists of 936 conjuncts, 8 conjunts are in the unsatisfiable core [2023-12-24 10:18:17,035 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-24 10:18:55,431 INFO L134 CoverageAnalysis]: Checked inductivity of 14620 backedges. 7354 proven. 276 refuted. 0 times theorem prover too weak. 6990 trivial. 0 not checked. [2023-12-24 10:18:55,431 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-12-24 10:18:59,124 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-12-24 10:18:59,124 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1471395365] [2023-12-24 10:18:59,124 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1471395365] provided 0 perfect and 1 imperfect interpolant sequences [2023-12-24 10:18:59,124 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleCvc4 [1895156518] [2023-12-24 10:18:59,125 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-24 10:18:59,125 INFO L173 SolverBuilder]: Constructing external solver with command: cvc4 --incremental --print-success --lang smt [2023-12-24 10:18:59,125 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/cvc4 [2023-12-24 10:18:59,157 INFO L229 MonitoredProcess]: Starting monitored process 5 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/cvc4 --incremental --print-success --lang smt (exit command is (exit), workingDir is null) [2023-12-24 10:18:59,162 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/cvc4 --incremental --print-success --lang smt (5)] Waiting until timeout for monitored process [2023-12-24 10:19:00,978 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-24 10:19:01,142 INFO L262 TraceCheckSpWp]: Trace formula consists of 936 conjuncts, 2 conjunts are in the unsatisfiable core [2023-12-24 10:19:01,148 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-24 10:19:02,444 INFO L134 CoverageAnalysis]: Checked inductivity of 14620 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 14620 trivial. 0 not checked. [2023-12-24 10:19:02,444 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-12-24 10:19:02,444 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleCvc4 [1895156518] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-24 10:19:02,444 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2023-12-24 10:19:02,444 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [9] total 10 [2023-12-24 10:19:02,444 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1486868422] [2023-12-24 10:19:02,445 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-24 10:19:02,445 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-12-24 10:19:02,445 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-12-24 10:19:02,446 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-12-24 10:19:02,446 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=31, Invalid=101, Unknown=0, NotChecked=0, Total=132 [2023-12-24 10:19:02,446 INFO L87 Difference]: Start difference. First operand 402 states and 665 transitions. Second operand has 3 states, 3 states have (on average 43.333333333333336) internal successors, (130), 3 states have internal predecessors, (130), 1 states have call successors, (86), 1 states have call predecessors, (86), 1 states have return successors, (86), 1 states have call predecessors, (86), 1 states have call successors, (86) [2023-12-24 10:19:03,890 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.36s for a HTC check with result INVALID. Formula has sorts [Bool, FloatingPoint, BitVec], hasArrays=false, hasNonlinArith=false, quantifiers [] [2023-12-24 10:19:11,104 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 6.49s for a HTC check with result UNKNOWN. Formula has sorts [Bool, FloatingPoint, RoundingMode, Real, BitVec], hasArrays=false, hasNonlinArith=false, quantifiers [] [2023-12-24 10:19:15,112 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.01s for a HTC check with result UNKNOWN. Formula has sorts [Bool, FloatingPoint, RoundingMode, Real, BitVec], hasArrays=false, hasNonlinArith=false, quantifiers [] [2023-12-24 10:19:19,128 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.02s for a HTC check with result UNKNOWN. Formula has sorts [Bool, FloatingPoint, RoundingMode, Real, BitVec], hasArrays=false, hasNonlinArith=false, quantifiers [] [2023-12-24 10:19:20,159 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.03s for a HTC check with result INVALID. Formula has sorts [Bool, FloatingPoint, BitVec], hasArrays=false, hasNonlinArith=false, quantifiers [] [2023-12-24 10:19:20,169 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-24 10:19:20,169 INFO L93 Difference]: Finished difference Result 866 states and 1437 transitions. [2023-12-24 10:19:20,170 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-12-24 10:19:20,171 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 43.333333333333336) internal successors, (130), 3 states have internal predecessors, (130), 1 states have call successors, (86), 1 states have call predecessors, (86), 1 states have return successors, (86), 1 states have call predecessors, (86), 1 states have call successors, (86) Word has length 557 [2023-12-24 10:19:20,172 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-24 10:19:20,174 INFO L225 Difference]: With dead ends: 866 [2023-12-24 10:19:20,174 INFO L226 Difference]: Without dead ends: 613 [2023-12-24 10:19:20,175 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 1191 GetRequests, 1181 SyntacticMatches, 0 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 21 ImplicationChecksByTransitivity, 5.9s TimeCoverageRelationStatistics Valid=31, Invalid=101, Unknown=0, NotChecked=0, Total=132 [2023-12-24 10:19:20,176 INFO L413 NwaCegarLoop]: 420 mSDtfsCounter, 333 mSDsluCounter, 412 mSDsCounter, 0 mSdLazyCounter, 14 mSolverCounterSat, 4 mSolverCounterUnsat, 3 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 16.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 333 SdHoareTripleChecker+Valid, 832 SdHoareTripleChecker+Invalid, 21 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 4 IncrementalHoareTripleChecker+Valid, 14 IncrementalHoareTripleChecker+Invalid, 3 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 17.7s IncrementalHoareTripleChecker+Time [2023-12-24 10:19:20,176 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [333 Valid, 832 Invalid, 21 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [4 Valid, 14 Invalid, 3 Unknown, 0 Unchecked, 17.7s Time] [2023-12-24 10:19:20,177 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 613 states. [2023-12-24 10:19:20,216 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 613 to 610. [2023-12-24 10:19:20,217 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 610 states, 362 states have (on average 1.441988950276243) internal successors, (522), 363 states have internal predecessors, (522), 243 states have call successors, (243), 4 states have call predecessors, (243), 4 states have return successors, (243), 242 states have call predecessors, (243), 243 states have call successors, (243) [2023-12-24 10:19:20,220 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 610 states to 610 states and 1008 transitions. [2023-12-24 10:19:20,220 INFO L78 Accepts]: Start accepts. Automaton has 610 states and 1008 transitions. Word has length 557 [2023-12-24 10:19:20,224 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-24 10:19:20,225 INFO L495 AbstractCegarLoop]: Abstraction has 610 states and 1008 transitions. [2023-12-24 10:19:20,225 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 43.333333333333336) internal successors, (130), 3 states have internal predecessors, (130), 1 states have call successors, (86), 1 states have call predecessors, (86), 1 states have return successors, (86), 1 states have call predecessors, (86), 1 states have call successors, (86) [2023-12-24 10:19:20,225 INFO L276 IsEmpty]: Start isEmpty. Operand 610 states and 1008 transitions. [2023-12-24 10:19:20,231 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 558 [2023-12-24 10:19:20,231 INFO L187 NwaCegarLoop]: Found error trace [2023-12-24 10:19:20,232 INFO L195 NwaCegarLoop]: trace histogram [86, 86, 86, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-24 10:19:20,312 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 [2023-12-24 10:19:20,446 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/cvc4 --incremental --print-success --lang smt (5)] Forceful destruction successful, exit code 0 [2023-12-24 10:19:20,636 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=3,5 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/cvc4 --incremental --print-success --lang smt [2023-12-24 10:19:20,636 INFO L420 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-24 10:19:20,637 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-24 10:19:20,637 INFO L85 PathProgramCache]: Analyzing trace with hash -763169089, now seen corresponding path program 1 times [2023-12-24 10:19:20,638 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-12-24 10:19:20,638 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [551092012] [2023-12-24 10:19:20,638 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-24 10:19:20,638 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 [2023-12-24 10:19:20,638 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2023-12-24 10:19:20,639 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) [2023-12-24 10:19:20,640 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 [2023-12-24 10:19:23,818 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-24 10:19:23,969 INFO L262 TraceCheckSpWp]: Trace formula consists of 934 conjuncts, 8 conjunts are in the unsatisfiable core [2023-12-24 10:19:23,976 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-24 10:20:01,955 INFO L134 CoverageAnalysis]: Checked inductivity of 14620 backedges. 7354 proven. 276 refuted. 0 times theorem prover too weak. 6990 trivial. 0 not checked. [2023-12-24 10:20:01,955 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-12-24 10:20:05,370 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-12-24 10:20:05,370 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [551092012] [2023-12-24 10:20:05,370 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [551092012] provided 0 perfect and 1 imperfect interpolant sequences [2023-12-24 10:20:05,370 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleCvc4 [1199795675] [2023-12-24 10:20:05,371 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-24 10:20:05,371 INFO L173 SolverBuilder]: Constructing external solver with command: cvc4 --incremental --print-success --lang smt [2023-12-24 10:20:05,371 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/cvc4 [2023-12-24 10:20:05,372 INFO L229 MonitoredProcess]: Starting monitored process 7 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/cvc4 --incremental --print-success --lang smt (exit command is (exit), workingDir is null) [2023-12-24 10:20:05,372 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/cvc4 --incremental --print-success --lang smt (7)] Waiting until timeout for monitored process [2023-12-24 10:20:06,925 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-24 10:20:07,065 INFO L262 TraceCheckSpWp]: Trace formula consists of 934 conjuncts, 2 conjunts are in the unsatisfiable core [2023-12-24 10:20:07,071 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-24 10:20:08,598 INFO L134 CoverageAnalysis]: Checked inductivity of 14620 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 14620 trivial. 0 not checked. [2023-12-24 10:20:08,598 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-12-24 10:20:08,598 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleCvc4 [1199795675] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-24 10:20:08,598 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2023-12-24 10:20:08,599 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [9] total 10 [2023-12-24 10:20:08,599 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1340094281] [2023-12-24 10:20:08,599 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-24 10:20:08,599 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-12-24 10:20:08,599 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-12-24 10:20:08,600 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-12-24 10:20:08,600 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=31, Invalid=101, Unknown=0, NotChecked=0, Total=132 [2023-12-24 10:20:08,600 INFO L87 Difference]: Start difference. First operand 610 states and 1008 transitions. Second operand has 3 states, 3 states have (on average 43.333333333333336) internal successors, (130), 3 states have internal predecessors, (130), 1 states have call successors, (86), 1 states have call predecessors, (86), 1 states have return successors, (86), 1 states have call predecessors, (86), 1 states have call successors, (86) [2023-12-24 10:20:15,417 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 6.39s for a HTC check with result UNKNOWN. Formula has sorts [Bool, FloatingPoint, RoundingMode, Real, BitVec], hasArrays=false, hasNonlinArith=false, quantifiers [] [2023-12-24 10:20:19,430 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.01s for a HTC check with result UNKNOWN. Formula has sorts [Bool, FloatingPoint, RoundingMode, Real, BitVec], hasArrays=false, hasNonlinArith=false, quantifiers [] [2023-12-24 10:20:23,444 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.01s for a HTC check with result UNKNOWN. Formula has sorts [Bool, FloatingPoint, RoundingMode, Real, BitVec], hasArrays=false, hasNonlinArith=false, quantifiers [] [2023-12-24 10:20:24,775 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.33s for a HTC check with result INVALID. Formula has sorts [Bool, FloatingPoint, BitVec], hasArrays=false, hasNonlinArith=false, quantifiers [] [2023-12-24 10:20:24,836 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-24 10:20:24,836 INFO L93 Difference]: Finished difference Result 1524 states and 2538 transitions. [2023-12-24 10:20:24,837 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-12-24 10:20:24,837 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 43.333333333333336) internal successors, (130), 3 states have internal predecessors, (130), 1 states have call successors, (86), 1 states have call predecessors, (86), 1 states have return successors, (86), 1 states have call predecessors, (86), 1 states have call successors, (86) Word has length 557 [2023-12-24 10:20:24,838 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-24 10:20:24,844 INFO L225 Difference]: With dead ends: 1524 [2023-12-24 10:20:24,844 INFO L226 Difference]: Without dead ends: 1067 [2023-12-24 10:20:24,846 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 1191 GetRequests, 1181 SyntacticMatches, 0 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 21 ImplicationChecksByTransitivity, 5.6s TimeCoverageRelationStatistics Valid=31, Invalid=101, Unknown=0, NotChecked=0, Total=132 [2023-12-24 10:20:24,846 INFO L413 NwaCegarLoop]: 679 mSDtfsCounter, 409 mSDsluCounter, 417 mSDsCounter, 0 mSdLazyCounter, 12 mSolverCounterSat, 2 mSolverCounterUnsat, 3 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 15.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 409 SdHoareTripleChecker+Valid, 1096 SdHoareTripleChecker+Invalid, 17 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 12 IncrementalHoareTripleChecker+Invalid, 3 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 16.2s IncrementalHoareTripleChecker+Time [2023-12-24 10:20:24,847 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [409 Valid, 1096 Invalid, 17 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 12 Invalid, 3 Unknown, 0 Unchecked, 16.2s Time] [2023-12-24 10:20:24,848 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1067 states. [2023-12-24 10:20:24,905 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1067 to 635. [2023-12-24 10:20:24,907 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 635 states, 387 states have (on average 1.4521963824289406) internal successors, (562), 388 states have internal predecessors, (562), 243 states have call successors, (243), 4 states have call predecessors, (243), 4 states have return successors, (243), 242 states have call predecessors, (243), 243 states have call successors, (243) [2023-12-24 10:20:24,911 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 635 states to 635 states and 1048 transitions. [2023-12-24 10:20:24,911 INFO L78 Accepts]: Start accepts. Automaton has 635 states and 1048 transitions. Word has length 557 [2023-12-24 10:20:24,912 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-24 10:20:24,913 INFO L495 AbstractCegarLoop]: Abstraction has 635 states and 1048 transitions. [2023-12-24 10:20:24,913 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 43.333333333333336) internal successors, (130), 3 states have internal predecessors, (130), 1 states have call successors, (86), 1 states have call predecessors, (86), 1 states have return successors, (86), 1 states have call predecessors, (86), 1 states have call successors, (86) [2023-12-24 10:20:24,913 INFO L276 IsEmpty]: Start isEmpty. Operand 635 states and 1048 transitions. [2023-12-24 10:20:24,917 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 558 [2023-12-24 10:20:24,917 INFO L187 NwaCegarLoop]: Found error trace [2023-12-24 10:20:24,918 INFO L195 NwaCegarLoop]: trace histogram [86, 86, 86, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-24 10:20:24,933 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/cvc4 --incremental --print-success --lang smt (7)] Forceful destruction successful, exit code 0 [2023-12-24 10:20:25,219 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 [2023-12-24 10:20:25,328 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 7 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/cvc4 --incremental --print-success --lang smt,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 [2023-12-24 10:20:25,329 INFO L420 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-24 10:20:25,329 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-24 10:20:25,330 INFO L85 PathProgramCache]: Analyzing trace with hash 775170941, now seen corresponding path program 1 times [2023-12-24 10:20:25,331 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-12-24 10:20:25,331 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1402642733] [2023-12-24 10:20:25,331 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-24 10:20:25,331 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 [2023-12-24 10:20:25,331 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2023-12-24 10:20:25,332 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) [2023-12-24 10:20:25,334 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 [2023-12-24 10:20:28,980 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-24 10:20:29,142 INFO L262 TraceCheckSpWp]: Trace formula consists of 933 conjuncts, 8 conjunts are in the unsatisfiable core [2023-12-24 10:20:29,149 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-24 10:21:09,889 INFO L134 CoverageAnalysis]: Checked inductivity of 14620 backedges. 7354 proven. 276 refuted. 0 times theorem prover too weak. 6990 trivial. 0 not checked. [2023-12-24 10:21:09,890 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-12-24 10:21:13,650 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-12-24 10:21:13,651 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1402642733] [2023-12-24 10:21:13,651 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1402642733] provided 0 perfect and 1 imperfect interpolant sequences [2023-12-24 10:21:13,651 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleCvc4 [1298084123] [2023-12-24 10:21:13,651 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-24 10:21:13,651 INFO L173 SolverBuilder]: Constructing external solver with command: cvc4 --incremental --print-success --lang smt [2023-12-24 10:21:13,651 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/cvc4 [2023-12-24 10:21:13,652 INFO L229 MonitoredProcess]: Starting monitored process 9 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/cvc4 --incremental --print-success --lang smt (exit command is (exit), workingDir is null) [2023-12-24 10:21:13,653 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/cvc4 --incremental --print-success --lang smt (9)] Waiting until timeout for monitored process [2023-12-24 10:21:15,375 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-24 10:21:15,508 INFO L262 TraceCheckSpWp]: Trace formula consists of 933 conjuncts, 2 conjunts are in the unsatisfiable core [2023-12-24 10:21:15,513 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-24 10:21:17,633 INFO L134 CoverageAnalysis]: Checked inductivity of 14620 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 14620 trivial. 0 not checked. [2023-12-24 10:21:17,634 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-12-24 10:21:17,634 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleCvc4 [1298084123] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-24 10:21:17,634 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2023-12-24 10:21:17,634 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [9] total 10 [2023-12-24 10:21:17,634 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1325164390] [2023-12-24 10:21:17,634 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-24 10:21:17,635 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-12-24 10:21:17,635 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-12-24 10:21:17,635 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-12-24 10:21:17,636 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=31, Invalid=101, Unknown=0, NotChecked=0, Total=132 [2023-12-24 10:21:17,636 INFO L87 Difference]: Start difference. First operand 635 states and 1048 transitions. Second operand has 3 states, 3 states have (on average 43.333333333333336) internal successors, (130), 3 states have internal predecessors, (130), 1 states have call successors, (86), 1 states have call predecessors, (86), 1 states have return successors, (86), 1 states have call predecessors, (86), 1 states have call successors, (86) [2023-12-24 10:21:25,520 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 6.54s for a HTC check with result UNKNOWN. Formula has sorts [Bool, FloatingPoint, RoundingMode, Real, BitVec], hasArrays=false, hasNonlinArith=false, quantifiers [] [2023-12-24 10:21:29,528 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.01s for a HTC check with result UNKNOWN. Formula has sorts [Bool, FloatingPoint, RoundingMode, Real, BitVec], hasArrays=false, hasNonlinArith=false, quantifiers [] [2023-12-24 10:21:33,558 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.03s for a HTC check with result UNKNOWN. Formula has sorts [Bool, FloatingPoint, RoundingMode, Real, BitVec], hasArrays=false, hasNonlinArith=false, quantifiers [] [2023-12-24 10:21:34,574 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.01s for a HTC check with result INVALID. Formula has sorts [Bool, FloatingPoint, BitVec], hasArrays=false, hasNonlinArith=false, quantifiers [] [2023-12-24 10:21:34,596 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-24 10:21:34,596 INFO L93 Difference]: Finished difference Result 1583 states and 2632 transitions. [2023-12-24 10:21:34,597 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-12-24 10:21:34,597 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 43.333333333333336) internal successors, (130), 3 states have internal predecessors, (130), 1 states have call successors, (86), 1 states have call predecessors, (86), 1 states have return successors, (86), 1 states have call predecessors, (86), 1 states have call successors, (86) Word has length 557 [2023-12-24 10:21:34,599 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-24 10:21:34,603 INFO L225 Difference]: With dead ends: 1583 [2023-12-24 10:21:34,604 INFO L226 Difference]: Without dead ends: 1101 [2023-12-24 10:21:34,605 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 1191 GetRequests, 1181 SyntacticMatches, 0 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 21 ImplicationChecksByTransitivity, 6.1s TimeCoverageRelationStatistics Valid=31, Invalid=101, Unknown=0, NotChecked=0, Total=132 [2023-12-24 10:21:34,606 INFO L413 NwaCegarLoop]: 418 mSDtfsCounter, 394 mSDsluCounter, 412 mSDsCounter, 0 mSdLazyCounter, 15 mSolverCounterSat, 6 mSolverCounterUnsat, 3 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 15.9s Time, 0 mProtectedPredicate, 0 mProtectedAction, 394 SdHoareTripleChecker+Valid, 830 SdHoareTripleChecker+Invalid, 24 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 6 IncrementalHoareTripleChecker+Valid, 15 IncrementalHoareTripleChecker+Invalid, 3 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 16.9s IncrementalHoareTripleChecker+Time [2023-12-24 10:21:34,607 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [394 Valid, 830 Invalid, 24 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [6 Valid, 15 Invalid, 3 Unknown, 0 Unchecked, 16.9s Time] [2023-12-24 10:21:34,608 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1101 states. [2023-12-24 10:21:34,659 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1101 to 709. [2023-12-24 10:21:34,660 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 709 states, 461 states have (on average 1.4793926247288502) internal successors, (682), 462 states have internal predecessors, (682), 243 states have call successors, (243), 4 states have call predecessors, (243), 4 states have return successors, (243), 242 states have call predecessors, (243), 243 states have call successors, (243) [2023-12-24 10:21:34,663 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 709 states to 709 states and 1168 transitions. [2023-12-24 10:21:34,664 INFO L78 Accepts]: Start accepts. Automaton has 709 states and 1168 transitions. Word has length 557 [2023-12-24 10:21:34,664 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-24 10:21:34,664 INFO L495 AbstractCegarLoop]: Abstraction has 709 states and 1168 transitions. [2023-12-24 10:21:34,664 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 43.333333333333336) internal successors, (130), 3 states have internal predecessors, (130), 1 states have call successors, (86), 1 states have call predecessors, (86), 1 states have return successors, (86), 1 states have call predecessors, (86), 1 states have call successors, (86) [2023-12-24 10:21:34,664 INFO L276 IsEmpty]: Start isEmpty. Operand 709 states and 1168 transitions. [2023-12-24 10:21:34,668 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 558 [2023-12-24 10:21:34,668 INFO L187 NwaCegarLoop]: Found error trace [2023-12-24 10:21:34,668 INFO L195 NwaCegarLoop]: trace histogram [86, 86, 86, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-24 10:21:34,681 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/cvc4 --incremental --print-success --lang smt (9)] Forceful destruction successful, exit code 0 [2023-12-24 10:21:34,970 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 [2023-12-24 10:21:35,084 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 9 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/cvc4 --incremental --print-success --lang smt,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 [2023-12-24 10:21:35,084 INFO L420 AbstractCegarLoop]: === Iteration 6 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-24 10:21:35,085 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-24 10:21:35,085 INFO L85 PathProgramCache]: Analyzing trace with hash 1982149437, now seen corresponding path program 1 times [2023-12-24 10:21:35,086 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-12-24 10:21:35,086 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [196457051] [2023-12-24 10:21:35,086 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-24 10:21:35,086 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 [2023-12-24 10:21:35,086 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2023-12-24 10:21:35,088 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) [2023-12-24 10:21:35,092 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (10)] Waiting until timeout for monitored process [2023-12-24 10:21:38,299 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-24 10:21:38,455 INFO L262 TraceCheckSpWp]: Trace formula consists of 933 conjuncts, 8 conjunts are in the unsatisfiable core [2023-12-24 10:21:38,460 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-24 10:22:20,311 INFO L134 CoverageAnalysis]: Checked inductivity of 14620 backedges. 7354 proven. 276 refuted. 0 times theorem prover too weak. 6990 trivial. 0 not checked. [2023-12-24 10:22:20,311 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-12-24 10:22:24,483 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-12-24 10:22:24,483 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [196457051] [2023-12-24 10:22:24,483 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [196457051] provided 0 perfect and 1 imperfect interpolant sequences [2023-12-24 10:22:24,483 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleCvc4 [263567995] [2023-12-24 10:22:24,484 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-24 10:22:24,484 INFO L173 SolverBuilder]: Constructing external solver with command: cvc4 --incremental --print-success --lang smt [2023-12-24 10:22:24,484 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/cvc4 [2023-12-24 10:22:24,485 INFO L229 MonitoredProcess]: Starting monitored process 11 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/cvc4 --incremental --print-success --lang smt (exit command is (exit), workingDir is null) [2023-12-24 10:22:24,489 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/cvc4 --incremental --print-success --lang smt (11)] Waiting until timeout for monitored process [2023-12-24 10:22:26,268 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-24 10:22:26,413 INFO L262 TraceCheckSpWp]: Trace formula consists of 933 conjuncts, 3 conjunts are in the unsatisfiable core [2023-12-24 10:22:26,418 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-24 10:22:29,646 INFO L134 CoverageAnalysis]: Checked inductivity of 14620 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 14620 trivial. 0 not checked. [2023-12-24 10:22:29,646 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-12-24 10:22:29,647 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleCvc4 [263567995] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-24 10:22:29,647 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2023-12-24 10:22:29,647 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [9] total 11 [2023-12-24 10:22:29,647 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1092071268] [2023-12-24 10:22:29,647 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-24 10:22:29,648 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2023-12-24 10:22:29,648 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-12-24 10:22:29,648 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2023-12-24 10:22:29,648 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=33, Invalid=123, Unknown=0, NotChecked=0, Total=156 [2023-12-24 10:22:29,649 INFO L87 Difference]: Start difference. First operand 709 states and 1168 transitions. Second operand has 4 states, 4 states have (on average 32.5) internal successors, (130), 4 states have internal predecessors, (130), 1 states have call successors, (86), 1 states have call predecessors, (86), 1 states have return successors, (86), 1 states have call predecessors, (86), 1 states have call successors, (86) [2023-12-24 10:22:38,532 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 6.71s for a HTC check with result UNKNOWN. Formula has sorts [Bool, FloatingPoint, RoundingMode, Real, BitVec], hasArrays=false, hasNonlinArith=false, quantifiers [] [2023-12-24 10:22:42,554 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.02s for a HTC check with result UNKNOWN. Formula has sorts [Bool, FloatingPoint, RoundingMode, Real, BitVec], hasArrays=false, hasNonlinArith=false, quantifiers [] [2023-12-24 10:22:46,565 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.01s for a HTC check with result UNKNOWN. Formula has sorts [Bool, FloatingPoint, RoundingMode, Real, BitVec], hasArrays=false, hasNonlinArith=false, quantifiers [] [2023-12-24 10:22:47,595 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.03s for a HTC check with result INVALID. Formula has sorts [Bool, FloatingPoint, BitVec], hasArrays=false, hasNonlinArith=false, quantifiers [] [2023-12-24 10:22:55,328 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-24 10:22:55,328 INFO L93 Difference]: Finished difference Result 1673 states and 2764 transitions. [2023-12-24 10:22:55,338 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2023-12-24 10:22:55,339 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 32.5) internal successors, (130), 4 states have internal predecessors, (130), 1 states have call successors, (86), 1 states have call predecessors, (86), 1 states have return successors, (86), 1 states have call predecessors, (86), 1 states have call successors, (86) Word has length 557 [2023-12-24 10:22:55,340 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-24 10:22:55,344 INFO L225 Difference]: With dead ends: 1673 [2023-12-24 10:22:55,344 INFO L226 Difference]: Without dead ends: 1117 [2023-12-24 10:22:55,346 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 1193 GetRequests, 1181 SyntacticMatches, 0 SemanticMatches, 12 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 29 ImplicationChecksByTransitivity, 7.6s TimeCoverageRelationStatistics Valid=37, Invalid=145, Unknown=0, NotChecked=0, Total=182 [2023-12-24 10:22:55,346 INFO L413 NwaCegarLoop]: 681 mSDtfsCounter, 788 mSDsluCounter, 769 mSDsCounter, 0 mSdLazyCounter, 213 mSolverCounterSat, 328 mSolverCounterUnsat, 3 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 23.9s Time, 0 mProtectedPredicate, 0 mProtectedAction, 788 SdHoareTripleChecker+Valid, 1450 SdHoareTripleChecker+Invalid, 544 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 328 IncrementalHoareTripleChecker+Valid, 213 IncrementalHoareTripleChecker+Invalid, 3 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 25.1s IncrementalHoareTripleChecker+Time [2023-12-24 10:22:55,346 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [788 Valid, 1450 Invalid, 544 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [328 Valid, 213 Invalid, 3 Unknown, 0 Unchecked, 25.1s Time] [2023-12-24 10:22:55,347 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1117 states. [2023-12-24 10:22:55,400 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1117 to 721. [2023-12-24 10:22:55,401 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 721 states, 472 states have (on average 1.4555084745762712) internal successors, (687), 473 states have internal predecessors, (687), 243 states have call successors, (243), 5 states have call predecessors, (243), 5 states have return successors, (243), 242 states have call predecessors, (243), 243 states have call successors, (243) [2023-12-24 10:22:55,403 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 721 states to 721 states and 1173 transitions. [2023-12-24 10:22:55,404 INFO L78 Accepts]: Start accepts. Automaton has 721 states and 1173 transitions. Word has length 557 [2023-12-24 10:22:55,404 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-24 10:22:55,404 INFO L495 AbstractCegarLoop]: Abstraction has 721 states and 1173 transitions. [2023-12-24 10:22:55,404 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 32.5) internal successors, (130), 4 states have internal predecessors, (130), 1 states have call successors, (86), 1 states have call predecessors, (86), 1 states have return successors, (86), 1 states have call predecessors, (86), 1 states have call successors, (86) [2023-12-24 10:22:55,405 INFO L276 IsEmpty]: Start isEmpty. Operand 721 states and 1173 transitions. [2023-12-24 10:22:55,407 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 558 [2023-12-24 10:22:55,408 INFO L187 NwaCegarLoop]: Found error trace [2023-12-24 10:22:55,408 INFO L195 NwaCegarLoop]: trace histogram [86, 86, 86, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-24 10:22:55,419 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/cvc4 --incremental --print-success --lang smt (11)] Ended with exit code 0 [2023-12-24 10:22:55,691 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 [2023-12-24 10:22:55,818 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 11 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/cvc4 --incremental --print-success --lang smt,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 [2023-12-24 10:22:55,818 INFO L420 AbstractCegarLoop]: === Iteration 7 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-24 10:22:55,818 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-24 10:22:55,818 INFO L85 PathProgramCache]: Analyzing trace with hash 734496191, now seen corresponding path program 1 times [2023-12-24 10:22:55,819 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-12-24 10:22:55,819 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [302134920] [2023-12-24 10:22:55,820 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-24 10:22:55,820 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 [2023-12-24 10:22:55,820 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2023-12-24 10:22:55,821 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) [2023-12-24 10:22:55,822 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 [2023-12-24 10:22:59,264 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-24 10:22:59,420 INFO L262 TraceCheckSpWp]: Trace formula consists of 933 conjuncts, 8 conjunts are in the unsatisfiable core [2023-12-24 10:22:59,426 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-24 10:23:42,018 INFO L134 CoverageAnalysis]: Checked inductivity of 14620 backedges. 7354 proven. 276 refuted. 0 times theorem prover too weak. 6990 trivial. 0 not checked. [2023-12-24 10:23:42,018 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-12-24 10:23:46,003 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-12-24 10:23:46,003 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [302134920] [2023-12-24 10:23:46,003 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [302134920] provided 0 perfect and 1 imperfect interpolant sequences [2023-12-24 10:23:46,003 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleCvc4 [1554993993] [2023-12-24 10:23:46,004 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-24 10:23:46,004 INFO L173 SolverBuilder]: Constructing external solver with command: cvc4 --incremental --print-success --lang smt [2023-12-24 10:23:46,004 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/cvc4 [2023-12-24 10:23:46,005 INFO L229 MonitoredProcess]: Starting monitored process 13 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/cvc4 --incremental --print-success --lang smt (exit command is (exit), workingDir is null) [2023-12-24 10:23:46,006 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/cvc4 --incremental --print-success --lang smt (13)] Waiting until timeout for monitored process [2023-12-24 10:23:53,210 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-24 10:23:53,378 INFO L262 TraceCheckSpWp]: Trace formula consists of 933 conjuncts, 6 conjunts are in the unsatisfiable core [2023-12-24 10:23:53,384 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-24 10:24:15,242 INFO L134 CoverageAnalysis]: Checked inductivity of 14620 backedges. 7305 proven. 141 refuted. 0 times theorem prover too weak. 7174 trivial. 0 not checked. [2023-12-24 10:24:15,242 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-12-24 10:24:15,898 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleCvc4 [1554993993] provided 0 perfect and 1 imperfect interpolant sequences [2023-12-24 10:24:15,898 INFO L185 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2023-12-24 10:24:15,898 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [9, 6] total 10 [2023-12-24 10:24:15,899 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1893347334] [2023-12-24 10:24:15,899 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2023-12-24 10:24:15,899 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2023-12-24 10:24:15,900 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-12-24 10:24:15,900 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2023-12-24 10:24:15,900 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=33, Invalid=99, Unknown=0, NotChecked=0, Total=132 [2023-12-24 10:24:15,901 INFO L87 Difference]: Start difference. First operand 721 states and 1173 transitions. Second operand has 10 states, 10 states have (on average 17.4) internal successors, (174), 10 states have internal predecessors, (174), 3 states have call successors, (132), 3 states have call predecessors, (132), 5 states have return successors, (133), 3 states have call predecessors, (133), 3 states have call successors, (133) [2023-12-24 10:24:59,078 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.74s for a HTC check with result UNKNOWN. Formula has sorts [Bool, FloatingPoint, RoundingMode, Real, BitVec], hasArrays=false, hasNonlinArith=false, quantifiers [] [2023-12-24 10:25:03,096 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.02s for a HTC check with result UNKNOWN. Formula has sorts [Bool, FloatingPoint, RoundingMode, Real, BitVec], hasArrays=false, hasNonlinArith=false, quantifiers [] [2023-12-24 10:25:07,097 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.00s for a HTC check with result UNKNOWN. Formula has sorts [Bool, FloatingPoint, RoundingMode, Real, BitVec], hasArrays=false, hasNonlinArith=false, quantifiers [] [2023-12-24 10:25:11,117 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.02s for a HTC check with result UNKNOWN. Formula has sorts [Bool, FloatingPoint, RoundingMode, Real, BitVec], hasArrays=false, hasNonlinArith=false, quantifiers [] [2023-12-24 10:25:15,125 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.01s for a HTC check with result UNKNOWN. Formula has sorts [Bool, FloatingPoint, RoundingMode, Real, BitVec], hasArrays=false, hasNonlinArith=false, quantifiers [] [2023-12-24 10:25:22,293 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 6.68s for a HTC check with result UNKNOWN. Formula has sorts [Bool, FloatingPoint, RoundingMode, Real, BitVec], hasArrays=false, hasNonlinArith=false, quantifiers [] [2023-12-24 10:25:26,298 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.00s for a HTC check with result UNKNOWN. Formula has sorts [Bool, FloatingPoint, RoundingMode, Real, BitVec], hasArrays=false, hasNonlinArith=false, quantifiers [] [2023-12-24 10:25:30,309 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.01s for a HTC check with result UNKNOWN. Formula has sorts [Bool, FloatingPoint, RoundingMode, Real, BitVec], hasArrays=false, hasNonlinArith=false, quantifiers [] [2023-12-24 10:25:34,317 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.01s for a HTC check with result UNKNOWN. Formula has sorts [Bool, FloatingPoint, RoundingMode, Real, BitVec], hasArrays=false, hasNonlinArith=false, quantifiers [] [2023-12-24 10:25:38,335 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.02s for a HTC check with result UNKNOWN. Formula has sorts [Bool, FloatingPoint, RoundingMode, Real, BitVec], hasArrays=false, hasNonlinArith=false, quantifiers [] [2023-12-24 10:25:42,389 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.05s for a HTC check with result UNKNOWN. Formula has sorts [Bool, FloatingPoint, RoundingMode, Real, BitVec], hasArrays=false, hasNonlinArith=false, quantifiers [] [2023-12-24 10:25:46,390 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.00s for a HTC check with result UNKNOWN. Formula has sorts [Bool, FloatingPoint, RoundingMode, Real, BitVec], hasArrays=false, hasNonlinArith=false, quantifiers [] [2023-12-24 10:25:46,406 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-24 10:25:46,407 INFO L93 Difference]: Finished difference Result 1323 states and 2131 transitions. [2023-12-24 10:25:47,448 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2023-12-24 10:25:47,448 INFO L78 Accepts]: Start accepts. Automaton has has 10 states, 10 states have (on average 17.4) internal successors, (174), 10 states have internal predecessors, (174), 3 states have call successors, (132), 3 states have call predecessors, (132), 5 states have return successors, (133), 3 states have call predecessors, (133), 3 states have call successors, (133) Word has length 557 [2023-12-24 10:25:47,449 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-24 10:25:47,452 INFO L225 Difference]: With dead ends: 1323 [2023-12-24 10:25:47,452 INFO L226 Difference]: Without dead ends: 755 [2023-12-24 10:25:47,454 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 1277 GetRequests, 1261 SyntacticMatches, 0 SemanticMatches, 16 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 45 ImplicationChecksByTransitivity, 9.6s TimeCoverageRelationStatistics Valid=81, Invalid=225, Unknown=0, NotChecked=0, Total=306 [2023-12-24 10:25:47,454 INFO L413 NwaCegarLoop]: 329 mSDtfsCounter, 624 mSDsluCounter, 1121 mSDsCounter, 0 mSdLazyCounter, 897 mSolverCounterSat, 13 mSolverCounterUnsat, 12 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 87.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 662 SdHoareTripleChecker+Valid, 1450 SdHoareTripleChecker+Invalid, 922 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 13 IncrementalHoareTripleChecker+Valid, 897 IncrementalHoareTripleChecker+Invalid, 12 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 87.7s IncrementalHoareTripleChecker+Time [2023-12-24 10:25:47,454 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [662 Valid, 1450 Invalid, 922 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [13 Valid, 897 Invalid, 12 Unknown, 0 Unchecked, 87.7s Time] [2023-12-24 10:25:47,455 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 755 states. [2023-12-24 10:25:47,520 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 755 to 745. [2023-12-24 10:25:47,522 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 745 states, 490 states have (on average 1.436734693877551) internal successors, (704), 491 states have internal predecessors, (704), 243 states have call successors, (243), 11 states have call predecessors, (243), 11 states have return successors, (243), 242 states have call predecessors, (243), 243 states have call successors, (243) [2023-12-24 10:25:47,524 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 745 states to 745 states and 1190 transitions. [2023-12-24 10:25:47,524 INFO L78 Accepts]: Start accepts. Automaton has 745 states and 1190 transitions. Word has length 557 [2023-12-24 10:25:47,525 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-24 10:25:47,525 INFO L495 AbstractCegarLoop]: Abstraction has 745 states and 1190 transitions. [2023-12-24 10:25:47,525 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 10 states have (on average 17.4) internal successors, (174), 10 states have internal predecessors, (174), 3 states have call successors, (132), 3 states have call predecessors, (132), 5 states have return successors, (133), 3 states have call predecessors, (133), 3 states have call successors, (133) [2023-12-24 10:25:47,525 INFO L276 IsEmpty]: Start isEmpty. Operand 745 states and 1190 transitions. [2023-12-24 10:25:47,529 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 559 [2023-12-24 10:25:47,529 INFO L187 NwaCegarLoop]: Found error trace [2023-12-24 10:25:47,529 INFO L195 NwaCegarLoop]: trace histogram [86, 86, 86, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-24 10:25:47,586 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/cvc4 --incremental --print-success --lang smt (13)] Forceful destruction successful, exit code 0 [2023-12-24 10:25:47,848 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (12)] Forceful destruction successful, exit code 0 [2023-12-24 10:25:47,956 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 13 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/cvc4 --incremental --print-success --lang smt,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 [2023-12-24 10:25:47,956 INFO L420 AbstractCegarLoop]: === Iteration 8 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-24 10:25:47,957 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-24 10:25:47,957 INFO L85 PathProgramCache]: Analyzing trace with hash -2099547152, now seen corresponding path program 1 times [2023-12-24 10:25:47,958 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-12-24 10:25:47,958 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1575808876] [2023-12-24 10:25:47,958 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-24 10:25:47,958 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 [2023-12-24 10:25:47,958 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2023-12-24 10:25:47,960 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) [2023-12-24 10:25:47,998 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 [2023-12-24 10:25:51,917 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-24 10:25:52,091 INFO L262 TraceCheckSpWp]: Trace formula consists of 934 conjuncts, 4 conjunts are in the unsatisfiable core [2023-12-24 10:25:52,096 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-24 10:26:01,485 INFO L134 CoverageAnalysis]: Checked inductivity of 14620 backedges. 4425 proven. 45 refuted. 0 times theorem prover too weak. 10150 trivial. 0 not checked. [2023-12-24 10:26:01,485 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-12-24 10:26:08,010 INFO L134 CoverageAnalysis]: Checked inductivity of 14620 backedges. 210 proven. 45 refuted. 0 times theorem prover too weak. 14365 trivial. 0 not checked. [2023-12-24 10:26:08,010 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-12-24 10:26:08,011 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1575808876] [2023-12-24 10:26:08,011 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1575808876] provided 0 perfect and 2 imperfect interpolant sequences [2023-12-24 10:26:08,011 INFO L185 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2023-12-24 10:26:08,011 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [5, 5] total 7 [2023-12-24 10:26:08,011 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1065035532] [2023-12-24 10:26:08,011 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2023-12-24 10:26:08,012 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2023-12-24 10:26:08,012 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-12-24 10:26:08,012 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2023-12-24 10:26:08,012 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=17, Invalid=25, Unknown=0, NotChecked=0, Total=42 [2023-12-24 10:26:08,013 INFO L87 Difference]: Start difference. First operand 745 states and 1190 transitions. Second operand has 7 states, 7 states have (on average 20.0) internal successors, (140), 7 states have internal predecessors, (140), 2 states have call successors, (101), 2 states have call predecessors, (101), 4 states have return successors, (102), 2 states have call predecessors, (102), 2 states have call successors, (102) [2023-12-24 10:26:34,306 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 6.69s for a HTC check with result UNKNOWN. Formula has sorts [Bool, FloatingPoint, RoundingMode, Real, BitVec], hasArrays=false, hasNonlinArith=false, quantifiers [] [2023-12-24 10:26:38,324 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.02s for a HTC check with result UNKNOWN. Formula has sorts [Bool, FloatingPoint, RoundingMode, Real, BitVec], hasArrays=false, hasNonlinArith=false, quantifiers [] [2023-12-24 10:26:42,355 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.03s for a HTC check with result UNKNOWN. Formula has sorts [Bool, FloatingPoint, RoundingMode, Real, BitVec], hasArrays=false, hasNonlinArith=false, quantifiers [] [2023-12-24 10:26:42,374 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-24 10:26:42,374 INFO L93 Difference]: Finished difference Result 1357 states and 2156 transitions. [2023-12-24 10:26:43,429 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2023-12-24 10:26:43,430 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 20.0) internal successors, (140), 7 states have internal predecessors, (140), 2 states have call successors, (101), 2 states have call predecessors, (101), 4 states have return successors, (102), 2 states have call predecessors, (102), 2 states have call successors, (102) Word has length 558 [2023-12-24 10:26:43,430 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-24 10:26:43,433 INFO L225 Difference]: With dead ends: 1357 [2023-12-24 10:26:43,433 INFO L226 Difference]: Without dead ends: 773 [2023-12-24 10:26:43,435 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 1118 GetRequests, 1108 SyntacticMatches, 1 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 5 ImplicationChecksByTransitivity, 3.1s TimeCoverageRelationStatistics Valid=45, Invalid=65, Unknown=0, NotChecked=0, Total=110 [2023-12-24 10:26:43,435 INFO L413 NwaCegarLoop]: 330 mSDtfsCounter, 715 mSDsluCounter, 484 mSDsCounter, 0 mSdLazyCounter, 442 mSolverCounterSat, 274 mSolverCounterUnsat, 3 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 32.9s Time, 0 mProtectedPredicate, 0 mProtectedAction, 784 SdHoareTripleChecker+Valid, 814 SdHoareTripleChecker+Invalid, 719 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 274 IncrementalHoareTripleChecker+Valid, 442 IncrementalHoareTripleChecker+Invalid, 3 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 33.1s IncrementalHoareTripleChecker+Time [2023-12-24 10:26:43,436 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [784 Valid, 814 Invalid, 719 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [274 Valid, 442 Invalid, 3 Unknown, 0 Unchecked, 33.1s Time] [2023-12-24 10:26:43,436 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 773 states. [2023-12-24 10:26:43,479 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 773 to 750. [2023-12-24 10:26:43,481 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 750 states, 495 states have (on average 1.4141414141414141) internal successors, (700), 496 states have internal predecessors, (700), 241 states have call successors, (241), 13 states have call predecessors, (241), 13 states have return successors, (241), 240 states have call predecessors, (241), 241 states have call successors, (241) [2023-12-24 10:26:43,483 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 750 states to 750 states and 1182 transitions. [2023-12-24 10:26:43,484 INFO L78 Accepts]: Start accepts. Automaton has 750 states and 1182 transitions. Word has length 558 [2023-12-24 10:26:43,484 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-24 10:26:43,484 INFO L495 AbstractCegarLoop]: Abstraction has 750 states and 1182 transitions. [2023-12-24 10:26:43,485 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 20.0) internal successors, (140), 7 states have internal predecessors, (140), 2 states have call successors, (101), 2 states have call predecessors, (101), 4 states have return successors, (102), 2 states have call predecessors, (102), 2 states have call successors, (102) [2023-12-24 10:26:43,485 INFO L276 IsEmpty]: Start isEmpty. Operand 750 states and 1182 transitions. [2023-12-24 10:26:43,488 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 559 [2023-12-24 10:26:43,488 INFO L187 NwaCegarLoop]: Found error trace [2023-12-24 10:26:43,489 INFO L195 NwaCegarLoop]: trace histogram [86, 86, 86, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-24 10:26:43,589 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (14)] Forceful destruction successful, exit code 0 [2023-12-24 10:26:43,708 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 [2023-12-24 10:26:43,709 INFO L420 AbstractCegarLoop]: === Iteration 9 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-24 10:26:43,709 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-24 10:26:43,709 INFO L85 PathProgramCache]: Analyzing trace with hash -1223528146, now seen corresponding path program 1 times [2023-12-24 10:26:43,710 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-12-24 10:26:43,710 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [838770121] [2023-12-24 10:26:43,710 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-24 10:26:43,710 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 [2023-12-24 10:26:43,711 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2023-12-24 10:26:43,712 INFO L229 MonitoredProcess]: Starting monitored process 15 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2023-12-24 10:26:43,724 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (15)] Waiting until timeout for monitored process [2023-12-24 10:26:47,881 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-24 10:26:48,051 INFO L262 TraceCheckSpWp]: Trace formula consists of 933 conjuncts, 4 conjunts are in the unsatisfiable core [2023-12-24 10:26:48,057 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-24 10:28:13,793 INFO L134 CoverageAnalysis]: Checked inductivity of 14620 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 14620 trivial. 0 not checked. [2023-12-24 10:28:13,793 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-12-24 10:28:13,794 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-12-24 10:28:13,794 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [838770121] [2023-12-24 10:28:13,794 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [838770121] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-24 10:28:13,794 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-24 10:28:13,794 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2023-12-24 10:28:13,794 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [486329512] [2023-12-24 10:28:13,794 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-24 10:28:13,794 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2023-12-24 10:28:13,795 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-12-24 10:28:13,795 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2023-12-24 10:28:13,795 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2023-12-24 10:28:13,795 INFO L87 Difference]: Start difference. First operand 750 states and 1182 transitions. Second operand has 4 states, 4 states have (on average 32.75) internal successors, (131), 3 states have internal predecessors, (131), 1 states have call successors, (86), 1 states have call predecessors, (86), 1 states have return successors, (86), 1 states have call predecessors, (86), 1 states have call successors, (86) [2023-12-24 10:28:28,078 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.68s for a HTC check with result UNKNOWN. Formula has sorts [Bool, FloatingPoint, RoundingMode, Real, BitVec], hasArrays=false, hasNonlinArith=false, quantifiers [] [2023-12-24 10:28:32,084 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.01s for a HTC check with result UNKNOWN. Formula has sorts [Bool, FloatingPoint, RoundingMode, Real, BitVec], hasArrays=false, hasNonlinArith=false, quantifiers [] [2023-12-24 10:28:37,001 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.92s for a HTC check with result UNKNOWN. Formula has sorts [Bool, FloatingPoint, RoundingMode, Real], hasArrays=false, hasNonlinArith=false, quantifiers [] [2023-12-24 10:28:41,010 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.01s for a HTC check with result UNKNOWN. Formula has sorts [Bool, FloatingPoint, RoundingMode, Real], hasArrays=false, hasNonlinArith=false, quantifiers [] [2023-12-24 10:28:48,809 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 3.83s for a HTC check with result INVALID. Formula has sorts [Bool, FloatingPoint, RoundingMode, Real, BitVec], hasArrays=false, hasNonlinArith=false, quantifiers [] [2023-12-24 10:28:49,953 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.06s for a HTC check with result INVALID. Formula has sorts [Bool, FloatingPoint, RoundingMode, Real, BitVec], hasArrays=false, hasNonlinArith=false, quantifiers [] [2023-12-24 10:28:53,282 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.66s for a HTC check with result INVALID. Formula has sorts [Bool, FloatingPoint, RoundingMode, Real, BitVec], hasArrays=false, hasNonlinArith=false, quantifiers [] [2023-12-24 10:28:56,624 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 3.17s for a HTC check with result INVALID. Formula has sorts [Bool, FloatingPoint, RoundingMode, Real, BitVec], hasArrays=false, hasNonlinArith=false, quantifiers [] [2023-12-24 10:29:00,081 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 3.28s for a HTC check with result INVALID. Formula has sorts [Bool, FloatingPoint, RoundingMode, Real], hasArrays=false, hasNonlinArith=false, quantifiers [] [2023-12-24 10:29:04,738 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.09s for a HTC check with result UNKNOWN. Formula has sorts [Bool, FloatingPoint, RoundingMode, Real], hasArrays=false, hasNonlinArith=false, quantifiers [] [2023-12-24 10:29:09,258 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.02s for a HTC check with result INVALID. Formula has sorts [Bool, FloatingPoint, RoundingMode, Real, BitVec], hasArrays=false, hasNonlinArith=false, quantifiers [] [2023-12-24 10:29:10,271 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.01s for a HTC check with result INVALID. Formula has sorts [Bool, FloatingPoint, RoundingMode, Real, BitVec], hasArrays=false, hasNonlinArith=false, quantifiers [] [2023-12-24 10:29:13,082 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.81s for a HTC check with result INVALID. Formula has sorts [Bool, FloatingPoint, RoundingMode, Real, BitVec], hasArrays=false, hasNonlinArith=false, quantifiers [] [2023-12-24 10:29:15,125 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.04s for a HTC check with result INVALID. Formula has sorts [Bool, FloatingPoint, RoundingMode, Real, BitVec], hasArrays=false, hasNonlinArith=false, quantifiers [] [2023-12-24 10:29:16,625 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.50s for a HTC check with result INVALID. Formula has sorts [Bool, FloatingPoint, RoundingMode, Real, BitVec], hasArrays=false, hasNonlinArith=false, quantifiers [] [2023-12-24 10:29:19,298 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.00s for a HTC check with result INVALID. Formula has sorts [Bool, FloatingPoint, RoundingMode, Real, BitVec], hasArrays=false, hasNonlinArith=false, quantifiers [] [2023-12-24 10:29:23,699 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.12s for a HTC check with result UNKNOWN. Formula has sorts [Bool, FloatingPoint, RoundingMode, Real], hasArrays=false, hasNonlinArith=false, quantifiers [] [2023-12-24 10:29:27,911 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.21s for a HTC check with result UNKNOWN. Formula has sorts [Bool, FloatingPoint, RoundingMode, Real], hasArrays=false, hasNonlinArith=false, quantifiers [] [2023-12-24 10:29:32,103 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.19s for a HTC check with result UNKNOWN. Formula has sorts [Bool, FloatingPoint, RoundingMode, Real], hasArrays=false, hasNonlinArith=false, quantifiers [] [2023-12-24 10:29:36,106 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.00s for a HTC check with result UNKNOWN. Formula has sorts [Bool, FloatingPoint, RoundingMode, Real], hasArrays=false, hasNonlinArith=false, quantifiers [] [2023-12-24 10:29:40,284 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.18s for a HTC check with result UNKNOWN. Formula has sorts [Bool, FloatingPoint, RoundingMode, Real], hasArrays=false, hasNonlinArith=false, quantifiers [] Received shutdown request... [2023-12-24 10:29:42,868 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 [2023-12-24 10:29:42,876 WARN L340 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (15)] Timeout while monitored process is still running, waiting 1000 ms for graceful end [2023-12-24 10:29:43,957 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (15)] Forceful destruction successful, exit code 0 [2023-12-24 10:29:44,068 WARN L435 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (1)] Forcibly destroying the process [2023-12-24 10:29:44,214 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (1)] Forceful destruction successful, exit code 137 [2023-12-24 10:29:44,215 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 558 GetRequests, 555 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.9s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2023-12-24 10:29:44,215 INFO L413 NwaCegarLoop]: 310 mSDtfsCounter, 219 mSDsluCounter, 153 mSDsCounter, 0 mSdLazyCounter, 259 mSolverCounterSat, 0 mSolverCounterUnsat, 10 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 84.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 219 SdHoareTripleChecker+Valid, 463 SdHoareTripleChecker+Invalid, 270 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 259 IncrementalHoareTripleChecker+Invalid, 10 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 86.1s IncrementalHoareTripleChecker+Time [2023-12-24 10:29:44,215 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [219 Valid, 463 Invalid, 270 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 259 Invalid, 10 Unknown, 0 Unchecked, 86.1s Time] [2023-12-24 10:29:44,216 INFO L805 garLoopResultBuilder]: Registering result TIMEOUT for location ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION (0 of 1 remaining) [2023-12-24 10:29:44,216 WARN L619 AbstractCegarLoop]: Verification canceled: while executing Executor. [2023-12-24 10:29:44,219 INFO L445 BasicCegarLoop]: Path program histogram: [1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-24 10:29:44,222 INFO L179 ceAbstractionStarter]: Computing trace abstraction results [2023-12-24 10:29:44,223 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 24.12 10:29:44 BoogieIcfgContainer [2023-12-24 10:29:44,223 INFO L131 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2023-12-24 10:29:44,224 INFO L158 Benchmark]: Toolchain (without parser) took 874254.75ms. Allocated memory is still 265.3MB. Free memory was 211.2MB in the beginning and 156.3MB in the end (delta: 54.9MB). Peak memory consumption was 55.2MB. Max. memory is 8.0GB. [2023-12-24 10:29:44,224 INFO L158 Benchmark]: CDTParser took 0.46ms. Allocated memory is still 212.9MB. Free memory is still 162.9MB. There was no memory consumed. Max. memory is 8.0GB. [2023-12-24 10:29:44,224 INFO L158 Benchmark]: CACSL2BoogieTranslator took 518.46ms. Allocated memory is still 265.3MB. Free memory was 210.9MB in the beginning and 220.8MB in the end (delta: -9.9MB). Peak memory consumption was 36.3MB. Max. memory is 8.0GB. [2023-12-24 10:29:44,224 INFO L158 Benchmark]: Boogie Procedure Inliner took 67.78ms. Allocated memory is still 265.3MB. Free memory was 220.8MB in the beginning and 213.4MB in the end (delta: 7.3MB). Peak memory consumption was 7.3MB. Max. memory is 8.0GB. [2023-12-24 10:29:44,224 INFO L158 Benchmark]: Boogie Preprocessor took 138.60ms. Allocated memory is still 265.3MB. Free memory was 213.4MB in the beginning and 185.7MB in the end (delta: 27.8MB). Peak memory consumption was 27.3MB. Max. memory is 8.0GB. [2023-12-24 10:29:44,224 INFO L158 Benchmark]: RCFGBuilder took 76317.61ms. Allocated memory is still 265.3MB. Free memory was 185.7MB in the beginning and 174.1MB in the end (delta: 11.5MB). Peak memory consumption was 45.6MB. Max. memory is 8.0GB. [2023-12-24 10:29:44,224 INFO L158 Benchmark]: TraceAbstraction took 797204.41ms. Allocated memory is still 265.3MB. Free memory was 173.1MB in the beginning and 156.3MB in the end (delta: 16.8MB). Peak memory consumption was 16.3MB. Max. memory is 8.0GB. [2023-12-24 10:29:44,225 INFO L338 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.46ms. Allocated memory is still 212.9MB. Free memory is still 162.9MB. There was no memory consumed. Max. memory is 8.0GB. * CACSL2BoogieTranslator took 518.46ms. Allocated memory is still 265.3MB. Free memory was 210.9MB in the beginning and 220.8MB in the end (delta: -9.9MB). Peak memory consumption was 36.3MB. Max. memory is 8.0GB. * Boogie Procedure Inliner took 67.78ms. Allocated memory is still 265.3MB. Free memory was 220.8MB in the beginning and 213.4MB in the end (delta: 7.3MB). Peak memory consumption was 7.3MB. Max. memory is 8.0GB. * Boogie Preprocessor took 138.60ms. Allocated memory is still 265.3MB. Free memory was 213.4MB in the beginning and 185.7MB in the end (delta: 27.8MB). Peak memory consumption was 27.3MB. Max. memory is 8.0GB. * RCFGBuilder took 76317.61ms. Allocated memory is still 265.3MB. Free memory was 185.7MB in the beginning and 174.1MB in the end (delta: 11.5MB). Peak memory consumption was 45.6MB. Max. memory is 8.0GB. * TraceAbstraction took 797204.41ms. Allocated memory is still 265.3MB. Free memory was 173.1MB in the beginning and 156.3MB in the end (delta: 16.8MB). Peak memory consumption was 16.3MB. 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: 19]: Timeout (TraceAbstraction) Unable to prove that a call to reach_error is unreachable (line 19). Cancelled while executing Executor. - StatisticsResult: Ultimate Automizer benchmark data CFG has 2 procedures, 256 locations, 1 error locations. Started 1 CEGAR loops. OverallTime: 797.1s, OverallIterations: 9, TraceHistogramMax: 86, PathProgramHistogramMax: 1, EmptinessCheckTime: 0.1s, AutomataDifference: 331.2s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 43 mSolverCounterUnknown, 3960 SdHoareTripleChecker+Valid, 317.6s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 3853 mSDsluCounter, 8618 SdHoareTripleChecker+Invalid, 309.7s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 4607 mSDsCounter, 800 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 1867 IncrementalHoareTripleChecker+Invalid, 2711 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 800 mSolverCounterUnsat, 4011 mSDtfsCounter, 1867 mSolverCounterSat, 0.1s SdHoareTripleChecker+Time, 43 IncrementalHoareTripleChecker+Unknown, PredicateUnifierStatistics: 0 DeclaredPredicates, 8830 GetRequests, 8756 SyntacticMatches, 1 SemanticMatches, 73 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 142 ImplicationChecksByTransitivity, 39.4s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=750occurred in iteration=8, InterpolantAutomatonStates: 41, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: 0.5s AutomataMinimizationTime, 8 MinimizatonAttempts, 1362 StatesRemovedByMinimization, 7 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.9s SsaConstructionTime, 44.5s SatisfiabilityAnalysisTime, 416.3s InterpolantComputationTime, 7798 NumberOfCodeBlocks, 7798 NumberOfCodeBlocksAsserted, 14 NumberOfCheckSat, 8341 ConstructedInterpolants, 0 QuantifiedInterpolants, 27933 SizeOfPredicates, 38 NumberOfNonLiveVariables, 13073 ConjunctsInSsa, 69 ConjunctsInUnsatCore, 15 InterpolantComputations, 7 PerfectInterpolantSequences, 217689/219300 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