/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_fillercode_fillercodestructure_filler-pe-cn_file-3.i -------------------------------------------------------------------------------- This is Ultimate 0.2.4-tmp.fs.bitabs-eval-d9c3e40-m [2023-12-23 08:19:38,717 INFO L188 SettingsManager]: Resetting all preferences to default values... [2023-12-23 08:19:38,779 INFO L114 SettingsManager]: Loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/settings/default/automizer/svcomp-Reach-32bit-Automizer_Bitvector.epf [2023-12-23 08:19:38,782 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2023-12-23 08:19:38,782 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2023-12-23 08:19:38,797 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2023-12-23 08:19:38,797 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2023-12-23 08:19:38,798 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2023-12-23 08:19:38,798 INFO L151 SettingsManager]: Preferences of Boogie Preprocessor differ from their defaults: [2023-12-23 08:19:38,798 INFO L153 SettingsManager]: * Use memory slicer=true [2023-12-23 08:19:38,799 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2023-12-23 08:19:38,799 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2023-12-23 08:19:38,799 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2023-12-23 08:19:38,800 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2023-12-23 08:19:38,800 INFO L153 SettingsManager]: * Use SBE=true [2023-12-23 08:19:38,800 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2023-12-23 08:19:38,801 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2023-12-23 08:19:38,801 INFO L153 SettingsManager]: * sizeof long=4 [2023-12-23 08:19:38,801 INFO L153 SettingsManager]: * sizeof POINTER=4 [2023-12-23 08:19:38,801 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2023-12-23 08:19:38,802 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2023-12-23 08:19:38,802 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2023-12-23 08:19:38,802 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2023-12-23 08:19:38,803 INFO L153 SettingsManager]: * Adapt memory model on pointer casts if necessary=true [2023-12-23 08:19:38,803 INFO L153 SettingsManager]: * Use bitvectors instead of ints=true [2023-12-23 08:19:38,803 INFO L153 SettingsManager]: * Allow undefined functions=false [2023-12-23 08:19:38,803 INFO L153 SettingsManager]: * Memory model=HoenickeLindenmann_4ByteResolution [2023-12-23 08:19:38,803 INFO L153 SettingsManager]: * sizeof long double=12 [2023-12-23 08:19:38,804 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2023-12-23 08:19:38,804 INFO L153 SettingsManager]: * Use constant arrays=true [2023-12-23 08:19:38,804 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2023-12-23 08:19:38,804 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2023-12-23 08:19:38,804 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2023-12-23 08:19:38,805 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2023-12-23 08:19:38,805 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2023-12-23 08:19:38,805 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2023-12-23 08:19:38,805 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2023-12-23 08:19:38,805 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2023-12-23 08:19:38,805 INFO L153 SettingsManager]: * Trace refinement strategy=WOLF [2023-12-23 08:19:38,806 INFO L153 SettingsManager]: * Command for external solver=cvc4 --incremental --print-success --lang smt [2023-12-23 08:19:38,806 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2023-12-23 08:19:38,806 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2023-12-23 08:19:38,806 INFO L153 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2023-12-23 08:19:38,806 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2023-12-23 08:19:38,807 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2023-12-23 08:19:38,807 INFO L153 SettingsManager]: * Logic for external solver=AUFBV [2023-12-23 08:19:38,807 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release [2023-12-23 08:19:38,987 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2023-12-23 08:19:39,007 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2023-12-23 08:19:39,009 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2023-12-23 08:19:39,010 INFO L270 PluginConnector]: Initializing CDTParser... [2023-12-23 08:19:39,010 INFO L274 PluginConnector]: CDTParser initialized [2023-12-23 08:19:39,011 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/hardness-nfm22/hardness_fillercode_fillercodestructure_filler-pe-cn_file-3.i [2023-12-23 08:19:40,059 INFO L533 CDTParser]: Created temporary CDT project at NULL [2023-12-23 08:19:40,221 INFO L384 CDTParser]: Found 1 translation units. [2023-12-23 08:19:40,221 INFO L180 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/hardness-nfm22/hardness_fillercode_fillercodestructure_filler-pe-cn_file-3.i [2023-12-23 08:19:40,228 INFO L427 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/80ed03a19/5938aeafc3cb4fe1bf4acd584ff5e751/FLAG060d96a71 [2023-12-23 08:19:40,238 INFO L435 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/80ed03a19/5938aeafc3cb4fe1bf4acd584ff5e751 [2023-12-23 08:19:40,240 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2023-12-23 08:19:40,241 INFO L133 ToolchainWalker]: Walking toolchain with 5 elements. [2023-12-23 08:19:40,241 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2023-12-23 08:19:40,241 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2023-12-23 08:19:40,244 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2023-12-23 08:19:40,245 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 23.12 08:19:40" (1/1) ... [2023-12-23 08:19:40,246 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@1488d919 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.12 08:19:40, skipping insertion in model container [2023-12-23 08:19:40,246 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 23.12 08:19:40" (1/1) ... [2023-12-23 08:19:40,279 INFO L177 MainTranslator]: Built tables and reachable declarations [2023-12-23 08:19:40,376 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_fillercode_fillercodestructure_filler-pe-cn_file-3.i[918,931] [2023-12-23 08:19:40,426 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-12-23 08:19:40,439 INFO L202 MainTranslator]: Completed pre-run [2023-12-23 08:19:40,459 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_fillercode_fillercodestructure_filler-pe-cn_file-3.i[918,931] [2023-12-23 08:19:40,507 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-12-23 08:19:40,526 INFO L206 MainTranslator]: Completed translation [2023-12-23 08:19:40,526 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.12 08:19:40 WrapperNode [2023-12-23 08:19:40,526 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2023-12-23 08:19:40,527 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2023-12-23 08:19:40,527 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2023-12-23 08:19:40,527 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2023-12-23 08:19:40,532 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.12 08:19:40" (1/1) ... [2023-12-23 08:19:40,542 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.12 08:19:40" (1/1) ... [2023-12-23 08:19:40,566 INFO L138 Inliner]: procedures = 27, calls = 60, calls flagged for inlining = 8, calls inlined = 8, statements flattened = 247 [2023-12-23 08:19:40,567 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2023-12-23 08:19:40,567 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2023-12-23 08:19:40,567 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2023-12-23 08:19:40,569 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2023-12-23 08:19:40,576 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.12 08:19:40" (1/1) ... [2023-12-23 08:19:40,577 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.12 08:19:40" (1/1) ... [2023-12-23 08:19:40,581 INFO L184 PluginConnector]: Executing the observer MemorySlicer from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.12 08:19:40" (1/1) ... [2023-12-23 08:19:40,591 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]. [2023-12-23 08:19:40,592 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.12 08:19:40" (1/1) ... [2023-12-23 08:19:40,592 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.12 08:19:40" (1/1) ... [2023-12-23 08:19:40,603 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.12 08:19:40" (1/1) ... [2023-12-23 08:19:40,616 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.12 08:19:40" (1/1) ... [2023-12-23 08:19:40,628 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.12 08:19:40" (1/1) ... [2023-12-23 08:19:40,630 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.12 08:19:40" (1/1) ... [2023-12-23 08:19:40,633 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2023-12-23 08:19:40,640 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2023-12-23 08:19:40,640 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2023-12-23 08:19:40,640 INFO L274 PluginConnector]: RCFGBuilder initialized [2023-12-23 08:19:40,641 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.12 08:19:40" (1/1) ... [2023-12-23 08:19:40,646 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2023-12-23 08:19:40,653 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-12-23 08:19:40,692 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) [2023-12-23 08:19:40,712 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 [2023-12-23 08:19:40,718 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2023-12-23 08:19:40,719 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE1#0 [2023-12-23 08:19:40,719 INFO L130 BoogieDeclarations]: Found specification of procedure assume_abort_if_not [2023-12-23 08:19:40,720 INFO L138 BoogieDeclarations]: Found implementation of procedure assume_abort_if_not [2023-12-23 08:19:40,720 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2023-12-23 08:19:40,720 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2023-12-23 08:19:40,798 INFO L241 CfgBuilder]: Building ICFG [2023-12-23 08:19:40,800 INFO L267 CfgBuilder]: Building CFG for each procedure with an implementation [2023-12-23 08:19:51,720 INFO L282 CfgBuilder]: Performing block encoding [2023-12-23 08:19:51,827 INFO L304 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2023-12-23 08:19:51,827 INFO L309 CfgBuilder]: Removed 1 assume(true) statements. [2023-12-23 08:19:51,828 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 23.12 08:19:51 BoogieIcfgContainer [2023-12-23 08:19:51,828 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2023-12-23 08:19:51,830 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2023-12-23 08:19:51,830 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2023-12-23 08:19:51,833 INFO L274 PluginConnector]: TraceAbstraction initialized [2023-12-23 08:19:51,833 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 23.12 08:19:40" (1/3) ... [2023-12-23 08:19:51,834 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@6f7eb8c and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 23.12 08:19:51, skipping insertion in model container [2023-12-23 08:19:51,835 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.12 08:19:40" (2/3) ... [2023-12-23 08:19:51,835 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@6f7eb8c and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 23.12 08:19:51, skipping insertion in model container [2023-12-23 08:19:51,835 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 23.12 08:19:51" (3/3) ... [2023-12-23 08:19:51,836 INFO L112 eAbstractionObserver]: Analyzing ICFG hardness_fillercode_fillercodestructure_filler-pe-cn_file-3.i [2023-12-23 08:19:51,850 INFO L204 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2023-12-23 08:19:51,850 INFO L163 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2023-12-23 08:19:51,891 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2023-12-23 08:19:51,898 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;@1c149fde, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2023-12-23 08:19:51,899 INFO L358 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2023-12-23 08:19:51,912 INFO L276 IsEmpty]: Start isEmpty. Operand has 114 states, 64 states have (on average 1.453125) internal successors, (93), 65 states have internal predecessors, (93), 47 states have call successors, (47), 1 states have call predecessors, (47), 1 states have return successors, (47), 47 states have call predecessors, (47), 47 states have call successors, (47) [2023-12-23 08:19:51,943 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 283 [2023-12-23 08:19:51,944 INFO L187 NwaCegarLoop]: Found error trace [2023-12-23 08:19:51,944 INFO L195 NwaCegarLoop]: trace histogram [47, 47, 47, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-23 08:19:51,945 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-23 08:19:51,950 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-23 08:19:51,951 INFO L85 PathProgramCache]: Analyzing trace with hash -568091958, now seen corresponding path program 1 times [2023-12-23 08:19:51,966 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-12-23 08:19:51,967 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1023135048] [2023-12-23 08:19:51,967 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-23 08:19:51,967 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 [2023-12-23 08:19:51,967 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2023-12-23 08:19:51,969 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) [2023-12-23 08:19:52,009 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 [2023-12-23 08:19:53,029 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-23 08:19:53,068 INFO L262 TraceCheckSpWp]: Trace formula consists of 440 conjuncts, 1 conjunts are in the unsatisfiable core [2023-12-23 08:19:53,079 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-23 08:19:53,120 INFO L134 CoverageAnalysis]: Checked inductivity of 4324 backedges. 1632 proven. 0 refuted. 0 times theorem prover too weak. 2692 trivial. 0 not checked. [2023-12-23 08:19:53,121 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-12-23 08:19:53,121 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-12-23 08:19:53,121 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1023135048] [2023-12-23 08:19:53,122 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1023135048] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-23 08:19:53,122 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-23 08:19:53,122 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2023-12-23 08:19:53,123 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1402393772] [2023-12-23 08:19:53,124 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-23 08:19:53,133 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2023-12-23 08:19:53,133 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-12-23 08:19:53,160 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2023-12-23 08:19:53,161 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2023-12-23 08:19:53,164 INFO L87 Difference]: Start difference. First operand has 114 states, 64 states have (on average 1.453125) internal successors, (93), 65 states have internal predecessors, (93), 47 states have call successors, (47), 1 states have call predecessors, (47), 1 states have return successors, (47), 47 states have call predecessors, (47), 47 states have call successors, (47) Second operand has 2 states, 2 states have (on average 27.0) internal successors, (54), 2 states have internal predecessors, (54), 2 states have call successors, (47), 2 states have call predecessors, (47), 2 states have return successors, (47), 2 states have call predecessors, (47), 2 states have call successors, (47) [2023-12-23 08:19:58,303 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 5.08s for a HTC check with result UNKNOWN. Formula has sorts [Bool, FloatingPoint, RoundingMode, Real, BitVec], hasArrays=false, hasNonlinArith=false, quantifiers [] [2023-12-23 08:19:58,304 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-23 08:19:58,304 INFO L93 Difference]: Finished difference Result 225 states and 419 transitions. [2023-12-23 08:19:58,688 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2023-12-23 08:19:58,690 INFO L78 Accepts]: Start accepts. Automaton has has 2 states, 2 states have (on average 27.0) internal successors, (54), 2 states have internal predecessors, (54), 2 states have call successors, (47), 2 states have call predecessors, (47), 2 states have return successors, (47), 2 states have call predecessors, (47), 2 states have call successors, (47) Word has length 282 [2023-12-23 08:19:58,690 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-23 08:19:58,697 INFO L225 Difference]: With dead ends: 225 [2023-12-23 08:19:58,697 INFO L226 Difference]: Without dead ends: 112 [2023-12-23 08:19:58,704 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 281 GetRequests, 281 SyntacticMatches, 0 SemanticMatches, 0 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2023-12-23 08:19:58,708 INFO L413 NwaCegarLoop]: 177 mSDtfsCounter, 0 mSDsluCounter, 0 mSDsCounter, 0 mSdLazyCounter, 2 mSolverCounterSat, 0 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 5.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 177 SdHoareTripleChecker+Invalid, 3 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 2 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 5.1s IncrementalHoareTripleChecker+Time [2023-12-23 08:19:58,710 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 177 Invalid, 3 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 2 Invalid, 1 Unknown, 0 Unchecked, 5.1s Time] [2023-12-23 08:19:58,721 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 112 states. [2023-12-23 08:19:58,757 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 112 to 112. [2023-12-23 08:19:58,758 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 112 states, 63 states have (on average 1.3650793650793651) internal successors, (86), 63 states have internal predecessors, (86), 47 states have call successors, (47), 1 states have call predecessors, (47), 1 states have return successors, (47), 47 states have call predecessors, (47), 47 states have call successors, (47) [2023-12-23 08:19:58,765 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 112 states to 112 states and 180 transitions. [2023-12-23 08:19:58,766 INFO L78 Accepts]: Start accepts. Automaton has 112 states and 180 transitions. Word has length 282 [2023-12-23 08:19:58,767 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-23 08:19:58,767 INFO L495 AbstractCegarLoop]: Abstraction has 112 states and 180 transitions. [2023-12-23 08:19:58,767 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 2 states, 2 states have (on average 27.0) internal successors, (54), 2 states have internal predecessors, (54), 2 states have call successors, (47), 2 states have call predecessors, (47), 2 states have return successors, (47), 2 states have call predecessors, (47), 2 states have call successors, (47) [2023-12-23 08:19:58,768 INFO L276 IsEmpty]: Start isEmpty. Operand 112 states and 180 transitions. [2023-12-23 08:19:58,772 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 283 [2023-12-23 08:19:58,772 INFO L187 NwaCegarLoop]: Found error trace [2023-12-23 08:19:58,772 INFO L195 NwaCegarLoop]: trace histogram [47, 47, 47, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-23 08:19:58,808 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (2)] Forceful destruction successful, exit code 0 [2023-12-23 08:19:58,993 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 [2023-12-23 08:19:58,993 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-23 08:19:58,994 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-23 08:19:58,994 INFO L85 PathProgramCache]: Analyzing trace with hash 552626962, now seen corresponding path program 1 times [2023-12-23 08:19:58,995 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-12-23 08:19:58,995 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [681214342] [2023-12-23 08:19:58,995 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-23 08:19:58,995 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2023-12-23 08:19:58,995 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2023-12-23 08:19:58,996 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) [2023-12-23 08:19:59,025 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 [2023-12-23 08:19:59,981 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-23 08:20:00,021 INFO L262 TraceCheckSpWp]: Trace formula consists of 441 conjuncts, 4 conjunts are in the unsatisfiable core [2023-12-23 08:20:00,028 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-23 08:20:05,297 INFO L134 CoverageAnalysis]: Checked inductivity of 4324 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 4324 trivial. 0 not checked. [2023-12-23 08:20:05,297 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-12-23 08:20:05,297 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-12-23 08:20:05,298 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [681214342] [2023-12-23 08:20:05,298 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [681214342] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-23 08:20:05,298 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-23 08:20:05,298 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2023-12-23 08:20:05,298 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1489745266] [2023-12-23 08:20:05,298 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-23 08:20:05,299 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2023-12-23 08:20:05,300 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-12-23 08:20:05,301 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2023-12-23 08:20:05,301 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2023-12-23 08:20:05,301 INFO L87 Difference]: Start difference. First operand 112 states and 180 transitions. Second operand has 4 states, 4 states have (on average 12.5) internal successors, (50), 3 states have internal predecessors, (50), 1 states have call successors, (47), 1 states have call predecessors, (47), 1 states have return successors, (47), 1 states have call predecessors, (47), 1 states have call successors, (47) [2023-12-23 08:20:10,133 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.60s for a HTC check with result UNKNOWN. Formula has sorts [Bool, FloatingPoint, RoundingMode, Real, BitVec], hasArrays=false, hasNonlinArith=false, quantifiers [] [2023-12-23 08:20:14,963 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.83s for a HTC check with result UNKNOWN. Formula has sorts [Bool, FloatingPoint, RoundingMode, Real, BitVec], hasArrays=false, hasNonlinArith=false, quantifiers [] [2023-12-23 08:20:19,832 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.58s for a HTC check with result UNKNOWN. Formula has sorts [Bool, FloatingPoint, RoundingMode, Real], hasArrays=false, hasNonlinArith=false, quantifiers [] [2023-12-23 08:20:24,668 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.83s for a HTC check with result UNKNOWN. Formula has sorts [Bool, FloatingPoint, RoundingMode, Real], hasArrays=false, hasNonlinArith=false, quantifiers [] [2023-12-23 08:20:28,472 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.80s for a HTC check with result INVALID. Formula has sorts [Bool, FloatingPoint, RoundingMode, Real], hasArrays=false, hasNonlinArith=false, quantifiers [] [2023-12-23 08:20:30,593 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.12s for a HTC check with result INVALID. Formula has sorts [Bool, FloatingPoint, RoundingMode, Real], hasArrays=false, hasNonlinArith=false, quantifiers [] [2023-12-23 08:20:35,747 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 5.15s for a HTC check with result UNKNOWN. Formula has sorts [Bool, FloatingPoint, RoundingMode, Real, BitVec], hasArrays=false, hasNonlinArith=false, quantifiers [] [2023-12-23 08:20:39,755 WARN L539 Checker$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 [] [2023-12-23 08:20:43,787 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.03s for a HTC check with result UNKNOWN. Formula has sorts [Bool, FloatingPoint, RoundingMode, Real, BitVec], hasArrays=false, hasNonlinArith=false, quantifiers [] [2023-12-23 08:20:47,822 WARN L539 Checker$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 [] [2023-12-23 08:20:51,835 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 [] [2023-12-23 08:20:52,282 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-23 08:20:52,282 INFO L93 Difference]: Finished difference Result 334 states and 538 transitions. [2023-12-23 08:20:52,283 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2023-12-23 08:20:52,283 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 12.5) internal successors, (50), 3 states have internal predecessors, (50), 1 states have call successors, (47), 1 states have call predecessors, (47), 1 states have return successors, (47), 1 states have call predecessors, (47), 1 states have call successors, (47) Word has length 282 [2023-12-23 08:20:52,284 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-23 08:20:52,286 INFO L225 Difference]: With dead ends: 334 [2023-12-23 08:20:52,286 INFO L226 Difference]: Without dead ends: 223 [2023-12-23 08:20:52,287 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 282 GetRequests, 279 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2023-12-23 08:20:52,288 INFO L413 NwaCegarLoop]: 202 mSDtfsCounter, 84 mSDsluCounter, 344 mSDsCounter, 0 mSdLazyCounter, 23 mSolverCounterSat, 2 mSolverCounterUnsat, 9 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 44.8s Time, 0 mProtectedPredicate, 0 mProtectedAction, 84 SdHoareTripleChecker+Valid, 546 SdHoareTripleChecker+Invalid, 34 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 23 IncrementalHoareTripleChecker+Invalid, 9 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 46.8s IncrementalHoareTripleChecker+Time [2023-12-23 08:20:52,288 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [84 Valid, 546 Invalid, 34 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 23 Invalid, 9 Unknown, 0 Unchecked, 46.8s Time] [2023-12-23 08:20:52,289 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 223 states. [2023-12-23 08:20:52,315 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 223 to 221. [2023-12-23 08:20:52,315 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 221 states, 124 states have (on average 1.346774193548387) internal successors, (167), 124 states have internal predecessors, (167), 94 states have call successors, (94), 2 states have call predecessors, (94), 2 states have return successors, (94), 94 states have call predecessors, (94), 94 states have call successors, (94) [2023-12-23 08:20:52,325 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 221 states to 221 states and 355 transitions. [2023-12-23 08:20:52,326 INFO L78 Accepts]: Start accepts. Automaton has 221 states and 355 transitions. Word has length 282 [2023-12-23 08:20:52,326 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-23 08:20:52,326 INFO L495 AbstractCegarLoop]: Abstraction has 221 states and 355 transitions. [2023-12-23 08:20:52,327 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 12.5) internal successors, (50), 3 states have internal predecessors, (50), 1 states have call successors, (47), 1 states have call predecessors, (47), 1 states have return successors, (47), 1 states have call predecessors, (47), 1 states have call successors, (47) [2023-12-23 08:20:52,327 INFO L276 IsEmpty]: Start isEmpty. Operand 221 states and 355 transitions. [2023-12-23 08:20:52,329 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 284 [2023-12-23 08:20:52,329 INFO L187 NwaCegarLoop]: Found error trace [2023-12-23 08:20:52,329 INFO L195 NwaCegarLoop]: trace histogram [47, 47, 47, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-23 08:20:52,355 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (3)] Forceful destruction successful, exit code 0 [2023-12-23 08:20:52,550 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 [2023-12-23 08:20:52,551 INFO L420 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-23 08:20:52,551 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-23 08:20:52,552 INFO L85 PathProgramCache]: Analyzing trace with hash 521295239, now seen corresponding path program 1 times [2023-12-23 08:20:52,552 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-12-23 08:20:52,552 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [404807108] [2023-12-23 08:20:52,553 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-23 08:20:52,553 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 [2023-12-23 08:20:52,553 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2023-12-23 08:20:52,560 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) [2023-12-23 08:20:52,575 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 [2023-12-23 08:20:53,559 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-23 08:20:53,597 INFO L262 TraceCheckSpWp]: Trace formula consists of 443 conjuncts, 2 conjunts are in the unsatisfiable core [2023-12-23 08:20:53,602 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-23 08:20:53,695 INFO L134 CoverageAnalysis]: Checked inductivity of 4324 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 4324 trivial. 0 not checked. [2023-12-23 08:20:53,695 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-12-23 08:20:53,695 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-12-23 08:20:53,695 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [404807108] [2023-12-23 08:20:53,695 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [404807108] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-23 08:20:53,695 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-23 08:20:53,695 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2023-12-23 08:20:53,696 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [282145261] [2023-12-23 08:20:53,696 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-23 08:20:53,696 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-12-23 08:20:53,696 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-12-23 08:20:53,697 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-12-23 08:20:53,697 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-12-23 08:20:53,697 INFO L87 Difference]: Start difference. First operand 221 states and 355 transitions. Second operand has 3 states, 3 states have (on average 17.0) internal successors, (51), 3 states have internal predecessors, (51), 1 states have call successors, (47), 1 states have call predecessors, (47), 1 states have return successors, (47), 1 states have call predecessors, (47), 1 states have call successors, (47) [2023-12-23 08:20:58,896 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 5.05s for a HTC check with result UNKNOWN. Formula has sorts [Bool, FloatingPoint, RoundingMode, Real, BitVec], hasArrays=false, hasNonlinArith=false, quantifiers [] [2023-12-23 08:21:02,948 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.05s for a HTC check with result UNKNOWN. Formula has sorts [Bool, FloatingPoint, RoundingMode, Real, BitVec], hasArrays=false, hasNonlinArith=false, quantifiers [] [2023-12-23 08:21:06,968 WARN L539 Checker$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 [] [2023-12-23 08:21:07,394 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-23 08:21:07,394 INFO L93 Difference]: Finished difference Result 501 states and 804 transitions. [2023-12-23 08:21:07,395 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-12-23 08:21:07,395 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 17.0) internal successors, (51), 3 states have internal predecessors, (51), 1 states have call successors, (47), 1 states have call predecessors, (47), 1 states have return successors, (47), 1 states have call predecessors, (47), 1 states have call successors, (47) Word has length 283 [2023-12-23 08:21:07,396 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-23 08:21:07,397 INFO L225 Difference]: With dead ends: 501 [2023-12-23 08:21:07,397 INFO L226 Difference]: Without dead ends: 281 [2023-12-23 08:21:07,398 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 282 GetRequests, 281 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-12-23 08:21:07,399 INFO L413 NwaCegarLoop]: 186 mSDtfsCounter, 44 mSDsluCounter, 163 mSDsCounter, 0 mSdLazyCounter, 14 mSolverCounterSat, 6 mSolverCounterUnsat, 3 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 13.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 44 SdHoareTripleChecker+Valid, 349 SdHoareTripleChecker+Invalid, 23 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 6 IncrementalHoareTripleChecker+Valid, 14 IncrementalHoareTripleChecker+Invalid, 3 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 13.7s IncrementalHoareTripleChecker+Time [2023-12-23 08:21:07,399 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [44 Valid, 349 Invalid, 23 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [6 Valid, 14 Invalid, 3 Unknown, 0 Unchecked, 13.7s Time] [2023-12-23 08:21:07,400 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 281 states. [2023-12-23 08:21:07,418 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 281 to 238. [2023-12-23 08:21:07,419 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 238 states, 141 states have (on average 1.3546099290780143) internal successors, (191), 141 states have internal predecessors, (191), 94 states have call successors, (94), 2 states have call predecessors, (94), 2 states have return successors, (94), 94 states have call predecessors, (94), 94 states have call successors, (94) [2023-12-23 08:21:07,420 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 238 states to 238 states and 379 transitions. [2023-12-23 08:21:07,420 INFO L78 Accepts]: Start accepts. Automaton has 238 states and 379 transitions. Word has length 283 [2023-12-23 08:21:07,421 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-23 08:21:07,421 INFO L495 AbstractCegarLoop]: Abstraction has 238 states and 379 transitions. [2023-12-23 08:21:07,421 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 17.0) internal successors, (51), 3 states have internal predecessors, (51), 1 states have call successors, (47), 1 states have call predecessors, (47), 1 states have return successors, (47), 1 states have call predecessors, (47), 1 states have call successors, (47) [2023-12-23 08:21:07,421 INFO L276 IsEmpty]: Start isEmpty. Operand 238 states and 379 transitions. [2023-12-23 08:21:07,423 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 285 [2023-12-23 08:21:07,423 INFO L187 NwaCegarLoop]: Found error trace [2023-12-23 08:21:07,423 INFO L195 NwaCegarLoop]: trace histogram [47, 47, 47, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-23 08:21:07,462 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 [2023-12-23 08:21:07,645 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 4 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2023-12-23 08:21:07,646 INFO L420 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-23 08:21:07,646 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-23 08:21:07,646 INFO L85 PathProgramCache]: Analyzing trace with hash -871174476, now seen corresponding path program 1 times [2023-12-23 08:21:07,646 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-12-23 08:21:07,647 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [284644649] [2023-12-23 08:21:07,647 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-23 08:21:07,647 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 [2023-12-23 08:21:07,647 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2023-12-23 08:21:07,648 INFO L229 MonitoredProcess]: Starting monitored process 5 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2023-12-23 08:21:07,651 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (5)] Waiting until timeout for monitored process [2023-12-23 08:21:08,626 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-23 08:21:08,668 INFO L262 TraceCheckSpWp]: Trace formula consists of 441 conjuncts, 2 conjunts are in the unsatisfiable core [2023-12-23 08:21:08,672 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-23 08:21:08,878 INFO L134 CoverageAnalysis]: Checked inductivity of 4324 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 4324 trivial. 0 not checked. [2023-12-23 08:21:08,878 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-12-23 08:21:08,878 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-12-23 08:21:08,878 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [284644649] [2023-12-23 08:21:08,878 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [284644649] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-23 08:21:08,878 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-23 08:21:08,879 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2023-12-23 08:21:08,879 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [196363959] [2023-12-23 08:21:08,879 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-23 08:21:08,879 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-12-23 08:21:08,879 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-12-23 08:21:08,880 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-12-23 08:21:08,880 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-12-23 08:21:08,880 INFO L87 Difference]: Start difference. First operand 238 states and 379 transitions. Second operand has 3 states, 3 states have (on average 17.333333333333332) internal successors, (52), 3 states have internal predecessors, (52), 1 states have call successors, (47), 1 states have call predecessors, (47), 1 states have return successors, (47), 1 states have call predecessors, (47), 1 states have call successors, (47) [2023-12-23 08:21:14,077 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 5.04s for a HTC check with result UNKNOWN. Formula has sorts [Bool, FloatingPoint, RoundingMode, Real, BitVec], hasArrays=false, hasNonlinArith=false, quantifiers [] [2023-12-23 08:21:18,098 WARN L539 Checker$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 [] [2023-12-23 08:21:22,113 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 [] [2023-12-23 08:21:22,555 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-23 08:21:22,555 INFO L93 Difference]: Finished difference Result 517 states and 822 transitions. [2023-12-23 08:21:22,556 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-12-23 08:21:22,556 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 17.333333333333332) internal successors, (52), 3 states have internal predecessors, (52), 1 states have call successors, (47), 1 states have call predecessors, (47), 1 states have return successors, (47), 1 states have call predecessors, (47), 1 states have call successors, (47) Word has length 284 [2023-12-23 08:21:22,557 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-23 08:21:22,558 INFO L225 Difference]: With dead ends: 517 [2023-12-23 08:21:22,558 INFO L226 Difference]: Without dead ends: 280 [2023-12-23 08:21:22,559 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 283 GetRequests, 282 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-12-23 08:21:22,560 INFO L413 NwaCegarLoop]: 203 mSDtfsCounter, 42 mSDsluCounter, 163 mSDsCounter, 0 mSdLazyCounter, 17 mSolverCounterSat, 2 mSolverCounterUnsat, 3 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 13.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 42 SdHoareTripleChecker+Valid, 366 SdHoareTripleChecker+Invalid, 22 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 17 IncrementalHoareTripleChecker+Invalid, 3 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 13.7s IncrementalHoareTripleChecker+Time [2023-12-23 08:21:22,560 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [42 Valid, 366 Invalid, 22 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 17 Invalid, 3 Unknown, 0 Unchecked, 13.7s Time] [2023-12-23 08:21:22,562 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 280 states. [2023-12-23 08:21:22,604 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 280 to 238. [2023-12-23 08:21:22,605 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 238 states, 141 states have (on average 1.3120567375886525) internal successors, (185), 141 states have internal predecessors, (185), 94 states have call successors, (94), 2 states have call predecessors, (94), 2 states have return successors, (94), 94 states have call predecessors, (94), 94 states have call successors, (94) [2023-12-23 08:21:22,635 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 238 states to 238 states and 373 transitions. [2023-12-23 08:21:22,636 INFO L78 Accepts]: Start accepts. Automaton has 238 states and 373 transitions. Word has length 284 [2023-12-23 08:21:22,637 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-23 08:21:22,637 INFO L495 AbstractCegarLoop]: Abstraction has 238 states and 373 transitions. [2023-12-23 08:21:22,637 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 17.333333333333332) internal successors, (52), 3 states have internal predecessors, (52), 1 states have call successors, (47), 1 states have call predecessors, (47), 1 states have return successors, (47), 1 states have call predecessors, (47), 1 states have call successors, (47) [2023-12-23 08:21:22,637 INFO L276 IsEmpty]: Start isEmpty. Operand 238 states and 373 transitions. [2023-12-23 08:21:22,640 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 286 [2023-12-23 08:21:22,640 INFO L187 NwaCegarLoop]: Found error trace [2023-12-23 08:21:22,640 INFO L195 NwaCegarLoop]: trace histogram [47, 47, 47, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-23 08:21:22,662 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (5)] Forceful destruction successful, exit code 0 [2023-12-23 08:21:22,840 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 5 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2023-12-23 08:21:22,841 INFO L420 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-23 08:21:22,841 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-23 08:21:22,842 INFO L85 PathProgramCache]: Analyzing trace with hash 1207476942, now seen corresponding path program 1 times [2023-12-23 08:21:22,842 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-12-23 08:21:22,842 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1335917155] [2023-12-23 08:21:22,842 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-23 08:21:22,842 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 [2023-12-23 08:21:22,842 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2023-12-23 08:21:22,845 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) [2023-12-23 08:21:22,888 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 [2023-12-23 08:21:23,829 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-23 08:21:23,867 INFO L262 TraceCheckSpWp]: Trace formula consists of 442 conjuncts, 5 conjunts are in the unsatisfiable core [2023-12-23 08:21:23,872 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-23 08:21:35,128 INFO L134 CoverageAnalysis]: Checked inductivity of 4324 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 4324 trivial. 0 not checked. [2023-12-23 08:21:35,128 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-12-23 08:21:35,128 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-12-23 08:21:35,128 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1335917155] [2023-12-23 08:21:35,128 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1335917155] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-23 08:21:35,128 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-23 08:21:35,129 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2023-12-23 08:21:35,129 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [938188347] [2023-12-23 08:21:35,129 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-23 08:21:35,129 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2023-12-23 08:21:35,129 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-12-23 08:21:35,130 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2023-12-23 08:21:35,130 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2023-12-23 08:21:35,130 INFO L87 Difference]: Start difference. First operand 238 states and 373 transitions. Second operand has 4 states, 4 states have (on average 13.25) internal successors, (53), 3 states have internal predecessors, (53), 1 states have call successors, (47), 1 states have call predecessors, (47), 1 states have return successors, (47), 1 states have call predecessors, (47), 1 states have call successors, (47) [2023-12-23 08:21:40,780 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 5.04s for a HTC check with result UNKNOWN. Formula has sorts [Bool, FloatingPoint, RoundingMode, Real, BitVec], hasArrays=false, hasNonlinArith=false, quantifiers [] [2023-12-23 08:21:44,813 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.03s for a HTC check with result UNKNOWN. Formula has sorts [Bool, FloatingPoint, RoundingMode, Real, BitVec], hasArrays=false, hasNonlinArith=false, quantifiers [] [2023-12-23 08:21:48,866 WARN L539 Checker$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 [] [2023-12-23 08:21:54,480 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 5.11s for a HTC check with result UNKNOWN. Formula has sorts [Bool, FloatingPoint, RoundingMode, Real, BitVec], hasArrays=false, hasNonlinArith=false, quantifiers [] [2023-12-23 08:21:58,487 WARN L539 Checker$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 [] [2023-12-23 08:22:02,491 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 [] [2023-12-23 08:22:02,492 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-23 08:22:02,492 INFO L93 Difference]: Finished difference Result 785 states and 1225 transitions. [2023-12-23 08:22:02,903 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2023-12-23 08:22:02,903 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 13.25) internal successors, (53), 3 states have internal predecessors, (53), 1 states have call successors, (47), 1 states have call predecessors, (47), 1 states have return successors, (47), 1 states have call predecessors, (47), 1 states have call successors, (47) Word has length 285 [2023-12-23 08:22:02,904 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-23 08:22:02,907 INFO L225 Difference]: With dead ends: 785 [2023-12-23 08:22:02,907 INFO L226 Difference]: Without dead ends: 548 [2023-12-23 08:22:02,908 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 285 GetRequests, 282 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2023-12-23 08:22:02,909 INFO L413 NwaCegarLoop]: 216 mSDtfsCounter, 134 mSDsluCounter, 342 mSDsCounter, 0 mSdLazyCounter, 26 mSolverCounterSat, 95 mSolverCounterUnsat, 6 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 26.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 134 SdHoareTripleChecker+Valid, 558 SdHoareTripleChecker+Invalid, 127 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 95 IncrementalHoareTripleChecker+Valid, 26 IncrementalHoareTripleChecker+Invalid, 6 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 27.2s IncrementalHoareTripleChecker+Time [2023-12-23 08:22:02,909 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [134 Valid, 558 Invalid, 127 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [95 Valid, 26 Invalid, 6 Unknown, 0 Unchecked, 27.2s Time] [2023-12-23 08:22:02,909 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 548 states. [2023-12-23 08:22:02,958 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 548 to 473. [2023-12-23 08:22:02,959 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 473 states, 280 states have (on average 1.3071428571428572) internal successors, (366), 280 states have internal predecessors, (366), 188 states have call successors, (188), 4 states have call predecessors, (188), 4 states have return successors, (188), 188 states have call predecessors, (188), 188 states have call successors, (188) [2023-12-23 08:22:02,962 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 473 states to 473 states and 742 transitions. [2023-12-23 08:22:02,962 INFO L78 Accepts]: Start accepts. Automaton has 473 states and 742 transitions. Word has length 285 [2023-12-23 08:22:02,964 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-23 08:22:02,964 INFO L495 AbstractCegarLoop]: Abstraction has 473 states and 742 transitions. [2023-12-23 08:22:02,964 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 13.25) internal successors, (53), 3 states have internal predecessors, (53), 1 states have call successors, (47), 1 states have call predecessors, (47), 1 states have return successors, (47), 1 states have call predecessors, (47), 1 states have call successors, (47) [2023-12-23 08:22:02,964 INFO L276 IsEmpty]: Start isEmpty. Operand 473 states and 742 transitions. [2023-12-23 08:22:02,966 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 286 [2023-12-23 08:22:02,966 INFO L187 NwaCegarLoop]: Found error trace [2023-12-23 08:22:02,966 INFO L195 NwaCegarLoop]: trace histogram [47, 47, 47, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-23 08:22:02,986 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 [2023-12-23 08:22:03,176 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 6 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2023-12-23 08:22:03,176 INFO L420 AbstractCegarLoop]: === Iteration 6 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-23 08:22:03,177 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-23 08:22:03,177 INFO L85 PathProgramCache]: Analyzing trace with hash 988622224, now seen corresponding path program 1 times [2023-12-23 08:22:03,177 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-12-23 08:22:03,178 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [977269191] [2023-12-23 08:22:03,178 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-23 08:22:03,178 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 [2023-12-23 08:22:03,178 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2023-12-23 08:22:03,179 INFO L229 MonitoredProcess]: Starting monitored process 7 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2023-12-23 08:22:03,180 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (7)] Waiting until timeout for monitored process [2023-12-23 08:22:04,396 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-23 08:22:04,438 INFO L262 TraceCheckSpWp]: Trace formula consists of 443 conjuncts, 6 conjunts are in the unsatisfiable core [2023-12-23 08:22:04,443 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-23 08:22:16,334 INFO L134 CoverageAnalysis]: Checked inductivity of 4324 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 4324 trivial. 0 not checked. [2023-12-23 08:22:16,334 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-12-23 08:22:16,334 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-12-23 08:22:16,334 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [977269191] [2023-12-23 08:22:16,334 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [977269191] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-23 08:22:16,334 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-23 08:22:16,334 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2023-12-23 08:22:16,334 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1709572885] [2023-12-23 08:22:16,334 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-23 08:22:16,335 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2023-12-23 08:22:16,335 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-12-23 08:22:16,335 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2023-12-23 08:22:16,335 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2023-12-23 08:22:16,336 INFO L87 Difference]: Start difference. First operand 473 states and 742 transitions. Second operand has 6 states, 6 states have (on average 8.833333333333334) internal successors, (53), 5 states have internal predecessors, (53), 1 states have call successors, (47), 1 states have call predecessors, (47), 1 states have return successors, (47), 1 states have call predecessors, (47), 1 states have call successors, (47) [2023-12-23 08:22:25,117 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 5.16s for a HTC check with result UNKNOWN. Formula has sorts [Bool, FloatingPoint, RoundingMode, Real, BitVec], hasArrays=false, hasNonlinArith=false, quantifiers [] [2023-12-23 08:22:29,122 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.00s for a HTC check with result UNKNOWN. Formula has sorts [Bool, FloatingPoint, RoundingMode, Real, BitVec], hasArrays=false, hasNonlinArith=false, quantifiers [] [2023-12-23 08:22:33,129 WARN L539 Checker$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 [] [2023-12-23 08:22:37,151 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.02s for a HTC check with result UNKNOWN. Formula has sorts [Bool, FloatingPoint, RoundingMode, Real, BitVec], hasArrays=false, hasNonlinArith=false, quantifiers [] [2023-12-23 08:22:41,171 WARN L539 Checker$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 [] [2023-12-23 08:22:45,181 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.01s for a HTC check with result UNKNOWN. Formula has sorts [Bool, FloatingPoint, RoundingMode, Real, BitVec], hasArrays=false, hasNonlinArith=false, quantifiers [] [2023-12-23 08:22:49,203 WARN L539 Checker$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 [] [2023-12-23 08:22:53,231 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.03s for a HTC check with result UNKNOWN. Formula has sorts [Bool, FloatingPoint, RoundingMode, Real, BitVec], hasArrays=false, hasNonlinArith=false, quantifiers [] [2023-12-23 08:22:57,253 WARN L539 Checker$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 [] [2023-12-23 08:23:01,267 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.01s for a HTC check with result UNKNOWN. Formula has sorts [Bool, FloatingPoint, RoundingMode, Real, BitVec], hasArrays=false, hasNonlinArith=false, quantifiers [] [2023-12-23 08:23:05,278 WARN L539 Checker$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 [] [2023-12-23 08:23:09,283 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.00s for a HTC check with result UNKNOWN. Formula has sorts [Bool, FloatingPoint, RoundingMode, Real, BitVec], hasArrays=false, hasNonlinArith=false, quantifiers [] [2023-12-23 08:23:13,293 WARN L539 Checker$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 [] [2023-12-23 08:23:17,309 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.02s for a HTC check with result UNKNOWN. Formula has sorts [Bool, FloatingPoint, RoundingMode, Real, BitVec], hasArrays=false, hasNonlinArith=false, quantifiers [] [2023-12-23 08:23:21,328 WARN L539 Checker$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 [] [2023-12-23 08:23:25,353 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.02s for a HTC check with result UNKNOWN. Formula has sorts [Bool, FloatingPoint, RoundingMode, Real, BitVec], hasArrays=false, hasNonlinArith=false, quantifiers [] [2023-12-23 08:23:29,356 WARN L539 Checker$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 [] [2023-12-23 08:23:38,501 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 5.07s for a HTC check with result UNKNOWN. Formula has sorts [Bool, FloatingPoint, RoundingMode, Real, BitVec], hasArrays=false, hasNonlinArith=false, quantifiers [] [2023-12-23 08:23:42,518 WARN L539 Checker$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 [] [2023-12-23 08:23:46,532 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.01s for a HTC check with result UNKNOWN. Formula has sorts [Bool, FloatingPoint, RoundingMode, Real, BitVec], hasArrays=false, hasNonlinArith=false, quantifiers [] [2023-12-23 08:23:50,550 WARN L539 Checker$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 [] [2023-12-23 08:23:51,063 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-23 08:23:51,064 INFO L93 Difference]: Finished difference Result 2146 states and 3355 transitions. [2023-12-23 08:23:51,065 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2023-12-23 08:23:51,065 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 8.833333333333334) internal successors, (53), 5 states have internal predecessors, (53), 1 states have call successors, (47), 1 states have call predecessors, (47), 1 states have return successors, (47), 1 states have call predecessors, (47), 1 states have call successors, (47) Word has length 285 [2023-12-23 08:23:51,066 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-23 08:23:51,073 INFO L225 Difference]: With dead ends: 2146 [2023-12-23 08:23:51,073 INFO L226 Difference]: Without dead ends: 1674 [2023-12-23 08:23:51,075 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 290 GetRequests, 280 SyntacticMatches, 0 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 11 ImplicationChecksByTransitivity, 1.0s TimeCoverageRelationStatistics Valid=46, Invalid=86, Unknown=0, NotChecked=0, Total=132 [2023-12-23 08:23:51,075 INFO L413 NwaCegarLoop]: 538 mSDtfsCounter, 404 mSDsluCounter, 914 mSDsCounter, 0 mSdLazyCounter, 553 mSolverCounterSat, 95 mSolverCounterUnsat, 21 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 92.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 404 SdHoareTripleChecker+Valid, 1452 SdHoareTripleChecker+Invalid, 669 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 95 IncrementalHoareTripleChecker+Valid, 553 IncrementalHoareTripleChecker+Invalid, 21 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 93.8s IncrementalHoareTripleChecker+Time [2023-12-23 08:23:51,076 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [404 Valid, 1452 Invalid, 669 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [95 Valid, 553 Invalid, 21 Unknown, 0 Unchecked, 93.8s Time] [2023-12-23 08:23:51,077 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1674 states. [2023-12-23 08:23:51,218 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1674 to 1512. [2023-12-23 08:23:51,221 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1512 states, 887 states have (on average 1.3043968432919955) internal successors, (1157), 887 states have internal predecessors, (1157), 611 states have call successors, (611), 13 states have call predecessors, (611), 13 states have return successors, (611), 611 states have call predecessors, (611), 611 states have call successors, (611) [2023-12-23 08:23:51,227 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1512 states to 1512 states and 2379 transitions. [2023-12-23 08:23:51,228 INFO L78 Accepts]: Start accepts. Automaton has 1512 states and 2379 transitions. Word has length 285 [2023-12-23 08:23:51,228 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-23 08:23:51,228 INFO L495 AbstractCegarLoop]: Abstraction has 1512 states and 2379 transitions. [2023-12-23 08:23:51,229 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 8.833333333333334) internal successors, (53), 5 states have internal predecessors, (53), 1 states have call successors, (47), 1 states have call predecessors, (47), 1 states have return successors, (47), 1 states have call predecessors, (47), 1 states have call successors, (47) [2023-12-23 08:23:51,229 INFO L276 IsEmpty]: Start isEmpty. Operand 1512 states and 2379 transitions. [2023-12-23 08:23:51,231 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 287 [2023-12-23 08:23:51,231 INFO L187 NwaCegarLoop]: Found error trace [2023-12-23 08:23:51,232 INFO L195 NwaCegarLoop]: trace histogram [47, 47, 47, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-23 08:23:51,255 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (7)] Forceful destruction successful, exit code 0 [2023-12-23 08:23:51,448 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 7 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2023-12-23 08:23:51,448 INFO L420 AbstractCegarLoop]: === Iteration 7 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-23 08:23:51,449 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-23 08:23:51,449 INFO L85 PathProgramCache]: Analyzing trace with hash 38537725, now seen corresponding path program 1 times [2023-12-23 08:23:51,449 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-12-23 08:23:51,449 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [540525330] [2023-12-23 08:23:51,449 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-23 08:23:51,449 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 [2023-12-23 08:23:51,450 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2023-12-23 08:23:51,451 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) [2023-12-23 08:23:51,452 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 [2023-12-23 08:23:52,422 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-23 08:23:52,461 INFO L262 TraceCheckSpWp]: Trace formula consists of 444 conjuncts, 4 conjunts are in the unsatisfiable core [2023-12-23 08:23:52,465 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-23 08:24:03,482 INFO L134 CoverageAnalysis]: Checked inductivity of 4324 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 4324 trivial. 0 not checked. [2023-12-23 08:24:03,482 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-12-23 08:24:03,482 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-12-23 08:24:03,482 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [540525330] [2023-12-23 08:24:03,483 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [540525330] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-23 08:24:03,483 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-23 08:24:03,483 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2023-12-23 08:24:03,483 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [885385416] [2023-12-23 08:24:03,483 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-23 08:24:03,483 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2023-12-23 08:24:03,483 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-12-23 08:24:03,484 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2023-12-23 08:24:03,484 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2023-12-23 08:24:03,484 INFO L87 Difference]: Start difference. First operand 1512 states and 2379 transitions. Second operand has 4 states, 4 states have (on average 13.5) internal successors, (54), 3 states have internal predecessors, (54), 1 states have call successors, (47), 1 states have call predecessors, (47), 1 states have return successors, (47), 1 states have call predecessors, (47), 1 states have call successors, (47) [2023-12-23 08:24:08,860 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 5.04s for a HTC check with result UNKNOWN. Formula has sorts [Bool, FloatingPoint, RoundingMode, Real, BitVec], hasArrays=false, hasNonlinArith=false, quantifiers [] [2023-12-23 08:24:12,897 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.04s for a HTC check with result UNKNOWN. Formula has sorts [Bool, FloatingPoint, RoundingMode, Real, BitVec], hasArrays=false, hasNonlinArith=false, quantifiers [] [2023-12-23 08:24:16,914 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.02s for a HTC check with result UNKNOWN. Formula has sorts [Bool, FloatingPoint, RoundingMode, Real, BitVec], hasArrays=false, hasNonlinArith=false, quantifiers [] [2023-12-23 08:24:20,928 WARN L539 Checker$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 [] [2023-12-23 08:24:24,951 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 [] [2023-12-23 08:24:25,454 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-23 08:24:25,455 INFO L93 Difference]: Finished difference Result 3262 states and 5131 transitions. [2023-12-23 08:24:25,455 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2023-12-23 08:24:25,455 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 13.5) internal successors, (54), 3 states have internal predecessors, (54), 1 states have call successors, (47), 1 states have call predecessors, (47), 1 states have return successors, (47), 1 states have call predecessors, (47), 1 states have call successors, (47) Word has length 286 [2023-12-23 08:24:25,456 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-23 08:24:25,463 INFO L225 Difference]: With dead ends: 3262 [2023-12-23 08:24:25,463 INFO L226 Difference]: Without dead ends: 1751 [2023-12-23 08:24:25,467 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 286 GetRequests, 283 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2023-12-23 08:24:25,468 INFO L413 NwaCegarLoop]: 209 mSDtfsCounter, 62 mSDsluCounter, 353 mSDsCounter, 0 mSdLazyCounter, 21 mSolverCounterSat, 0 mSolverCounterUnsat, 5 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 21.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 62 SdHoareTripleChecker+Valid, 562 SdHoareTripleChecker+Invalid, 26 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 21 IncrementalHoareTripleChecker+Invalid, 5 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 21.8s IncrementalHoareTripleChecker+Time [2023-12-23 08:24:25,468 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [62 Valid, 562 Invalid, 26 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 21 Invalid, 5 Unknown, 0 Unchecked, 21.8s Time] [2023-12-23 08:24:25,469 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1751 states. [2023-12-23 08:24:25,582 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1751 to 1172. [2023-12-23 08:24:25,585 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1172 states, 691 states have (on average 1.3039073806078147) internal successors, (901), 691 states have internal predecessors, (901), 470 states have call successors, (470), 10 states have call predecessors, (470), 10 states have return successors, (470), 470 states have call predecessors, (470), 470 states have call successors, (470) [2023-12-23 08:24:25,589 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1172 states to 1172 states and 1841 transitions. [2023-12-23 08:24:25,590 INFO L78 Accepts]: Start accepts. Automaton has 1172 states and 1841 transitions. Word has length 286 [2023-12-23 08:24:25,591 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-23 08:24:25,591 INFO L495 AbstractCegarLoop]: Abstraction has 1172 states and 1841 transitions. [2023-12-23 08:24:25,591 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 13.5) internal successors, (54), 3 states have internal predecessors, (54), 1 states have call successors, (47), 1 states have call predecessors, (47), 1 states have return successors, (47), 1 states have call predecessors, (47), 1 states have call successors, (47) [2023-12-23 08:24:25,591 INFO L276 IsEmpty]: Start isEmpty. Operand 1172 states and 1841 transitions. [2023-12-23 08:24:25,593 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 287 [2023-12-23 08:24:25,593 INFO L187 NwaCegarLoop]: Found error trace [2023-12-23 08:24:25,593 INFO L195 NwaCegarLoop]: trace histogram [47, 47, 47, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-23 08:24:25,616 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 [2023-12-23 08:24:25,815 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 8 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2023-12-23 08:24:25,816 INFO L420 AbstractCegarLoop]: === Iteration 8 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-23 08:24:25,816 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-23 08:24:25,816 INFO L85 PathProgramCache]: Analyzing trace with hash -2020942651, now seen corresponding path program 1 times [2023-12-23 08:24:25,817 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-12-23 08:24:25,817 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [205131866] [2023-12-23 08:24:25,817 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-23 08:24:25,817 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 [2023-12-23 08:24:25,817 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2023-12-23 08:24:25,818 INFO L229 MonitoredProcess]: Starting monitored process 9 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2023-12-23 08:24:25,819 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (9)] Waiting until timeout for monitored process [2023-12-23 08:24:26,821 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-23 08:24:26,861 INFO L262 TraceCheckSpWp]: Trace formula consists of 444 conjuncts, 3 conjunts are in the unsatisfiable core [2023-12-23 08:24:26,865 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-23 08:24:32,488 INFO L134 CoverageAnalysis]: Checked inductivity of 4324 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 4324 trivial. 0 not checked. [2023-12-23 08:24:32,489 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-12-23 08:24:32,489 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-12-23 08:24:32,489 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [205131866] [2023-12-23 08:24:32,489 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [205131866] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-23 08:24:32,489 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-23 08:24:32,489 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2023-12-23 08:24:32,489 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1711351271] [2023-12-23 08:24:32,489 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-23 08:24:32,490 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-12-23 08:24:32,490 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-12-23 08:24:32,490 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-12-23 08:24:32,490 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-12-23 08:24:32,490 INFO L87 Difference]: Start difference. First operand 1172 states and 1841 transitions. Second operand has 3 states, 3 states have (on average 18.0) internal successors, (54), 2 states have internal predecessors, (54), 1 states have call successors, (47), 1 states have call predecessors, (47), 1 states have return successors, (47), 1 states have call predecessors, (47), 1 states have call successors, (47) [2023-12-23 08:24:37,154 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.62s for a HTC check with result UNKNOWN. Formula has sorts [Bool, FloatingPoint, RoundingMode, Real], hasArrays=false, hasNonlinArith=false, quantifiers [] [2023-12-23 08:24:43,252 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 5.11s for a HTC check with result UNKNOWN. Formula has sorts [Bool, FloatingPoint, RoundingMode, Real, BitVec], hasArrays=false, hasNonlinArith=false, quantifiers [] [2023-12-23 08:24:47,261 WARN L539 Checker$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 [] [2023-12-23 08:24:51,281 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.02s for a HTC check with result UNKNOWN. Formula has sorts [Bool, FloatingPoint, RoundingMode, Real, BitVec], hasArrays=false, hasNonlinArith=false, quantifiers [] [2023-12-23 08:24:56,442 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.63s for a HTC check with result UNKNOWN. Formula has sorts [Bool, FloatingPoint, RoundingMode, Real], hasArrays=false, hasNonlinArith=false, quantifiers [] [2023-12-23 08:24:56,700 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-23 08:24:56,701 INFO L93 Difference]: Finished difference Result 3393 states and 5327 transitions. [2023-12-23 08:24:56,701 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-12-23 08:24:56,702 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 18.0) internal successors, (54), 2 states have internal predecessors, (54), 1 states have call successors, (47), 1 states have call predecessors, (47), 1 states have return successors, (47), 1 states have call predecessors, (47), 1 states have call successors, (47) Word has length 286 [2023-12-23 08:24:56,702 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-23 08:24:56,709 INFO L225 Difference]: With dead ends: 3393 [2023-12-23 08:24:56,710 INFO L226 Difference]: Without dead ends: 2222 [2023-12-23 08:24:56,713 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 285 GetRequests, 284 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-12-23 08:24:56,713 INFO L413 NwaCegarLoop]: 174 mSDtfsCounter, 39 mSDsluCounter, 170 mSDsCounter, 0 mSdLazyCounter, 11 mSolverCounterSat, 0 mSolverCounterUnsat, 5 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 23.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 39 SdHoareTripleChecker+Valid, 344 SdHoareTripleChecker+Invalid, 16 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 11 IncrementalHoareTripleChecker+Invalid, 5 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 24.1s IncrementalHoareTripleChecker+Time [2023-12-23 08:24:56,713 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [39 Valid, 344 Invalid, 16 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 11 Invalid, 5 Unknown, 0 Unchecked, 24.1s Time] [2023-12-23 08:24:56,715 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2222 states. [2023-12-23 08:24:56,860 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2222 to 2212. [2023-12-23 08:24:56,863 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2212 states, 1299 states have (on average 1.2948421862971518) internal successors, (1682), 1299 states have internal predecessors, (1682), 893 states have call successors, (893), 19 states have call predecessors, (893), 19 states have return successors, (893), 893 states have call predecessors, (893), 893 states have call successors, (893) [2023-12-23 08:24:56,874 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2212 states to 2212 states and 3468 transitions. [2023-12-23 08:24:56,875 INFO L78 Accepts]: Start accepts. Automaton has 2212 states and 3468 transitions. Word has length 286 [2023-12-23 08:24:56,875 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-23 08:24:56,875 INFO L495 AbstractCegarLoop]: Abstraction has 2212 states and 3468 transitions. [2023-12-23 08:24:56,876 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 18.0) internal successors, (54), 2 states have internal predecessors, (54), 1 states have call successors, (47), 1 states have call predecessors, (47), 1 states have return successors, (47), 1 states have call predecessors, (47), 1 states have call successors, (47) [2023-12-23 08:24:56,876 INFO L276 IsEmpty]: Start isEmpty. Operand 2212 states and 3468 transitions. [2023-12-23 08:24:56,877 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 287 [2023-12-23 08:24:56,877 INFO L187 NwaCegarLoop]: Found error trace [2023-12-23 08:24:56,877 INFO L195 NwaCegarLoop]: trace histogram [47, 47, 47, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-23 08:24:56,914 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (9)] Forceful destruction successful, exit code 0 [2023-12-23 08:24:57,114 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 9 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2023-12-23 08:24:57,115 INFO L420 AbstractCegarLoop]: === Iteration 9 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-23 08:24:57,116 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-23 08:24:57,116 INFO L85 PathProgramCache]: Analyzing trace with hash 1572960067, now seen corresponding path program 1 times [2023-12-23 08:24:57,116 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-12-23 08:24:57,116 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1678680471] [2023-12-23 08:24:57,116 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-23 08:24:57,116 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 [2023-12-23 08:24:57,116 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2023-12-23 08:24:57,117 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) [2023-12-23 08:24:57,119 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 [2023-12-23 08:24:58,106 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-23 08:24:58,148 INFO L262 TraceCheckSpWp]: Trace formula consists of 445 conjuncts, 14 conjunts are in the unsatisfiable core [2023-12-23 08:24:58,153 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-23 08:25:23,138 WARN L293 SmtUtils]: Spent 6.32s on a formula simplification that was a NOOP. DAG size: 4 (called from [L 731] de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher.simplify) [2023-12-23 08:25:32,025 WARN L293 SmtUtils]: Spent 8.89s on a formula simplification that was a NOOP. DAG size: 12 (called from [L 731] de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher.simplify) [2023-12-23 08:25:40,925 WARN L293 SmtUtils]: Spent 8.90s on a formula simplification that was a NOOP. DAG size: 7 (called from [L 731] de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher.simplify) [2023-12-23 08:25:46,000 WARN L293 SmtUtils]: Spent 5.07s on a formula simplification that was a NOOP. DAG size: 9 (called from [L 731] de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher.simplify) [2023-12-23 08:25:54,905 WARN L293 SmtUtils]: Spent 8.90s on a formula simplification that was a NOOP. DAG size: 11 (called from [L 731] de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher.simplify) [2023-12-23 08:26:03,776 WARN L293 SmtUtils]: Spent 8.87s on a formula simplification that was a NOOP. DAG size: 8 (called from [L 731] de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher.simplify) [2023-12-23 08:26:12,690 WARN L293 SmtUtils]: Spent 8.91s on a formula simplification that was a NOOP. DAG size: 5 (called from [L 731] de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher.simplify) [2023-12-23 08:26:21,604 WARN L293 SmtUtils]: Spent 8.91s on a formula simplification that was a NOOP. DAG size: 6 (called from [L 731] de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher.simplify) [2023-12-23 08:26:30,494 WARN L293 SmtUtils]: Spent 8.89s on a formula simplification that was a NOOP. DAG size: 4 (called from [L 731] de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher.simplify) [2023-12-23 08:26:39,003 WARN L293 SmtUtils]: Spent 8.51s on a formula simplification that was a NOOP. DAG size: 8 (called from [L 731] de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher.simplify) [2023-12-23 08:26:47,889 WARN L293 SmtUtils]: Spent 8.89s on a formula simplification that was a NOOP. DAG size: 5 (called from [L 731] de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher.simplify) [2023-12-23 08:26:56,793 WARN L293 SmtUtils]: Spent 8.90s on a formula simplification that was a NOOP. DAG size: 3 (called from [L 731] de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher.simplify) [2023-12-23 08:27:01,039 WARN L854 $PredicateComparison]: unable to prove that (let ((.cse4 ((_ sign_extend 24) c_~var_1_14~0)) (.cse0 ((_ zero_extend 24) c_~var_1_20~0))) (and (not (bvslt ((_ sign_extend 24) c_~var_1_5~0) .cse0)) (= ((_ zero_extend 8) c_~last_1_var_1_20~0) c_~var_1_6~0) (let ((.cse3 (bvadd (bvneg .cse4) ((_ zero_extend 24) c_~var_1_21~0))) (.cse2 (bvadd ((_ zero_extend 24) c_~var_1_22~0) (_ bv8 32)))) (let ((.cse1 (bvsgt .cse3 .cse2))) (or (and (not .cse1) (= ((_ extract 7 0) .cse2) c_~var_1_20~0)) (and (= ((_ extract 7 0) .cse3) c_~var_1_20~0) .cse1)))) (= ((_ to_fp 11 53) c_currentRoundingMode (/ 49999999999998.0 5.0)) c_~var_1_17~0) (not (bvslt (bvadd (bvneg .cse0) .cse4) .cse0)) (= c_~var_1_12~0 ((_ to_fp 11 53) c_currentRoundingMode (/ 41.0 5.0))) (not (fp.gt (fp.div c_currentRoundingMode c_~var_1_17~0 c_~var_1_15~0) ((_ to_fp 11 53) c_currentRoundingMode (/ 101.0 4.0)))) (= c_currentRoundingMode roundNearestTiesToEven) (not (= c_~var_1_3~0 (_ bv0 8))))) is different from false [2023-12-23 08:27:05,283 WARN L876 $PredicateComparison]: unable to prove that (let ((.cse4 ((_ sign_extend 24) c_~var_1_14~0)) (.cse0 ((_ zero_extend 24) c_~var_1_20~0))) (and (not (bvslt ((_ sign_extend 24) c_~var_1_5~0) .cse0)) (= ((_ zero_extend 8) c_~last_1_var_1_20~0) c_~var_1_6~0) (let ((.cse3 (bvadd (bvneg .cse4) ((_ zero_extend 24) c_~var_1_21~0))) (.cse2 (bvadd ((_ zero_extend 24) c_~var_1_22~0) (_ bv8 32)))) (let ((.cse1 (bvsgt .cse3 .cse2))) (or (and (not .cse1) (= ((_ extract 7 0) .cse2) c_~var_1_20~0)) (and (= ((_ extract 7 0) .cse3) c_~var_1_20~0) .cse1)))) (= ((_ to_fp 11 53) c_currentRoundingMode (/ 49999999999998.0 5.0)) c_~var_1_17~0) (not (bvslt (bvadd (bvneg .cse0) .cse4) .cse0)) (= c_~var_1_12~0 ((_ to_fp 11 53) c_currentRoundingMode (/ 41.0 5.0))) (not (fp.gt (fp.div c_currentRoundingMode c_~var_1_17~0 c_~var_1_15~0) ((_ to_fp 11 53) c_currentRoundingMode (/ 101.0 4.0)))) (= c_currentRoundingMode roundNearestTiesToEven) (not (= c_~var_1_3~0 (_ bv0 8))))) is different from true [2023-12-23 08:27:14,175 WARN L293 SmtUtils]: Spent 8.89s on a formula simplification that was a NOOP. DAG size: 4 (called from [L 731] de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher.simplify) [2023-12-23 08:27:23,078 WARN L293 SmtUtils]: Spent 8.90s on a formula simplification that was a NOOP. DAG size: 12 (called from [L 731] de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher.simplify) [2023-12-23 08:27:31,967 WARN L293 SmtUtils]: Spent 8.89s on a formula simplification that was a NOOP. DAG size: 7 (called from [L 731] de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher.simplify) [2023-12-23 08:27:40,830 WARN L293 SmtUtils]: Spent 8.86s on a formula simplification that was a NOOP. DAG size: 9 (called from [L 731] de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher.simplify) [2023-12-23 08:27:49,711 WARN L293 SmtUtils]: Spent 8.88s on a formula simplification that was a NOOP. DAG size: 11 (called from [L 731] de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher.simplify) [2023-12-23 08:27:55,737 WARN L293 SmtUtils]: Spent 6.02s on a formula simplification that was a NOOP. DAG size: 8 (called from [L 731] de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher.simplify) [2023-12-23 08:28:04,609 WARN L293 SmtUtils]: Spent 8.87s on a formula simplification that was a NOOP. DAG size: 5 (called from [L 731] de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher.simplify) [2023-12-23 08:28:13,503 WARN L293 SmtUtils]: Spent 8.89s on a formula simplification that was a NOOP. DAG size: 6 (called from [L 731] de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher.simplify) [2023-12-23 08:28:22,367 WARN L293 SmtUtils]: Spent 8.86s on a formula simplification that was a NOOP. DAG size: 4 (called from [L 731] de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher.simplify) [2023-12-23 08:28:30,855 WARN L293 SmtUtils]: Spent 8.49s on a formula simplification that was a NOOP. DAG size: 8 (called from [L 731] de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher.simplify) [2023-12-23 08:28:39,739 WARN L293 SmtUtils]: Spent 8.88s on a formula simplification that was a NOOP. DAG size: 5 (called from [L 731] de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher.simplify) [2023-12-23 08:28:48,671 WARN L293 SmtUtils]: Spent 8.93s on a formula simplification that was a NOOP. DAG size: 3 (called from [L 731] de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher.simplify) [2023-12-23 08:28:56,007 WARN L293 SmtUtils]: Spent 7.33s on a formula simplification that was a NOOP. DAG size: 4 (called from [L 731] de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher.simplify) [2023-12-23 08:29:04,913 WARN L293 SmtUtils]: Spent 8.91s on a formula simplification that was a NOOP. DAG size: 12 (called from [L 731] de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher.simplify) [2023-12-23 08:29:13,818 WARN L293 SmtUtils]: Spent 8.90s on a formula simplification that was a NOOP. DAG size: 7 (called from [L 731] de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher.simplify) [2023-12-23 08:29:19,464 WARN L293 SmtUtils]: Spent 5.64s on a formula simplification that was a NOOP. DAG size: 9 (called from [L 731] de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher.simplify) [2023-12-23 08:29:28,390 WARN L293 SmtUtils]: Spent 8.93s on a formula simplification that was a NOOP. DAG size: 11 (called from [L 731] de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher.simplify) [2023-12-23 08:29:37,326 WARN L293 SmtUtils]: Spent 8.94s on a formula simplification that was a NOOP. DAG size: 8 (called from [L 731] de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher.simplify) [2023-12-23 08:29:50,557 WARN L293 SmtUtils]: Spent 8.87s on a formula simplification that was a NOOP. DAG size: 6 (called from [L 731] de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher.simplify) [2023-12-23 08:29:56,236 WARN L293 SmtUtils]: Spent 5.68s on a formula simplification that was a NOOP. DAG size: 4 (called from [L 731] de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher.simplify) [2023-12-23 08:30:01,550 WARN L293 SmtUtils]: Spent 5.31s on a formula simplification that was a NOOP. DAG size: 8 (called from [L 731] de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher.simplify) [2023-12-23 08:30:10,427 WARN L293 SmtUtils]: Spent 8.88s on a formula simplification that was a NOOP. DAG size: 5 (called from [L 731] de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher.simplify) [2023-12-23 08:30:19,325 WARN L293 SmtUtils]: Spent 8.90s on a formula simplification that was a NOOP. DAG size: 3 (called from [L 731] de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher.simplify) [2023-12-23 08:30:28,240 WARN L293 SmtUtils]: Spent 8.91s on a formula simplification that was a NOOP. DAG size: 4 (called from [L 731] de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher.simplify) [2023-12-23 08:30:37,142 WARN L293 SmtUtils]: Spent 8.90s on a formula simplification that was a NOOP. DAG size: 12 (called from [L 731] de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher.simplify) [2023-12-23 08:30:46,082 WARN L293 SmtUtils]: Spent 8.94s on a formula simplification that was a NOOP. DAG size: 7 (called from [L 731] de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher.simplify) [2023-12-23 08:30:54,999 WARN L293 SmtUtils]: Spent 8.92s on a formula simplification that was a NOOP. DAG size: 9 (called from [L 731] de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher.simplify) [2023-12-23 08:31:03,915 WARN L293 SmtUtils]: Spent 8.92s on a formula simplification that was a NOOP. DAG size: 11 (called from [L 731] de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher.simplify) [2023-12-23 08:31:12,859 WARN L293 SmtUtils]: Spent 8.94s on a formula simplification that was a NOOP. DAG size: 8 (called from [L 731] de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher.simplify) [2023-12-23 08:31:21,806 WARN L293 SmtUtils]: Spent 8.95s on a formula simplification that was a NOOP. DAG size: 5 (called from [L 731] de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher.simplify) [2023-12-23 08:31:30,745 WARN L293 SmtUtils]: Spent 8.94s on a formula simplification that was a NOOP. DAG size: 6 (called from [L 731] de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher.simplify) [2023-12-23 08:31:39,668 WARN L293 SmtUtils]: Spent 8.92s on a formula simplification that was a NOOP. DAG size: 4 (called from [L 731] de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher.simplify) [2023-12-23 08:31:45,012 WARN L293 SmtUtils]: Spent 5.34s on a formula simplification that was a NOOP. DAG size: 8 (called from [L 731] de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher.simplify) [2023-12-23 08:31:53,929 WARN L293 SmtUtils]: Spent 8.92s on a formula simplification that was a NOOP. DAG size: 5 (called from [L 731] de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher.simplify) [2023-12-23 08:32:02,819 WARN L293 SmtUtils]: Spent 8.89s on a formula simplification that was a NOOP. DAG size: 3 (called from [L 731] de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher.simplify) [2023-12-23 08:32:09,008 WARN L293 SmtUtils]: Spent 6.18s on a formula simplification that was a NOOP. DAG size: 4 (called from [L 731] de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher.simplify) [2023-12-23 08:32:17,901 WARN L293 SmtUtils]: Spent 8.89s on a formula simplification that was a NOOP. DAG size: 12 (called from [L 731] de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher.simplify) [2023-12-23 08:32:26,819 WARN L293 SmtUtils]: Spent 8.92s on a formula simplification that was a NOOP. DAG size: 7 (called from [L 731] de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher.simplify) [2023-12-23 08:32:39,847 WARN L293 SmtUtils]: Spent 5.91s on a formula simplification that was a NOOP. DAG size: 8 (called from [L 731] de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher.simplify) [2023-12-23 08:32:48,773 WARN L293 SmtUtils]: Spent 8.93s on a formula simplification that was a NOOP. DAG size: 5 (called from [L 731] de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher.simplify) [2023-12-23 08:32:57,700 WARN L293 SmtUtils]: Spent 8.93s on a formula simplification that was a NOOP. DAG size: 6 (called from [L 731] de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher.simplify) [2023-12-23 08:33:06,586 WARN L293 SmtUtils]: Spent 8.89s on a formula simplification that was a NOOP. DAG size: 4 (called from [L 731] de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher.simplify) [2023-12-23 08:33:15,116 WARN L293 SmtUtils]: Spent 8.53s on a formula simplification that was a NOOP. DAG size: 8 (called from [L 731] de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher.simplify) [2023-12-23 08:33:24,022 WARN L293 SmtUtils]: Spent 8.91s on a formula simplification that was a NOOP. DAG size: 5 (called from [L 731] de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher.simplify) [2023-12-23 08:33:32,932 WARN L293 SmtUtils]: Spent 8.91s on a formula simplification that was a NOOP. DAG size: 3 (called from [L 731] de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher.simplify) [2023-12-23 08:33:40,358 WARN L293 SmtUtils]: Spent 7.42s on a formula simplification that was a NOOP. DAG size: 4 (called from [L 731] de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher.simplify) [2023-12-23 08:33:49,276 WARN L293 SmtUtils]: Spent 8.92s on a formula simplification that was a NOOP. DAG size: 12 (called from [L 731] de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher.simplify) [2023-12-23 08:33:58,170 WARN L293 SmtUtils]: Spent 8.89s on a formula simplification that was a NOOP. DAG size: 7 (called from [L 731] de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher.simplify) [2023-12-23 08:34:07,079 WARN L293 SmtUtils]: Spent 8.91s on a formula simplification that was a NOOP. DAG size: 9 (called from [L 731] de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher.simplify) [2023-12-23 08:34:22,692 WARN L293 SmtUtils]: Spent 8.63s on a formula simplification that was a NOOP. DAG size: 5 (called from [L 731] de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher.simplify) Received shutdown request... [2023-12-23 08:34:23,045 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 [2023-12-23 08:34:23,045 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 (10)] Timeout while monitored process is still running, waiting 1000 ms for graceful end [2023-12-23 08:34:24,069 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 [2023-12-23 08:34:24,246 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 [2023-12-23 08:34:24,327 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 [2023-12-23 08:34:24,329 INFO L805 garLoopResultBuilder]: Registering result TIMEOUT for location ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION (0 of 1 remaining) [2023-12-23 08:34:24,329 WARN L619 AbstractCegarLoop]: Verification canceled: while NwaCegarLoop was analyzing trace of length 287 with TraceHistMax 47,while TraceCheckSpWp was constructing forward predicates,while executing Executor. [2023-12-23 08:34:24,332 INFO L445 BasicCegarLoop]: Path program histogram: [1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-23 08:34:24,334 INFO L179 ceAbstractionStarter]: Computing trace abstraction results [2023-12-23 08:34:24,335 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 23.12 08:34:24 BoogieIcfgContainer [2023-12-23 08:34:24,335 INFO L131 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2023-12-23 08:34:24,336 INFO L158 Benchmark]: Toolchain (without parser) took 884095.19ms. Allocated memory was 188.7MB in the beginning and 232.8MB in the end (delta: 44.0MB). Free memory was 146.4MB in the beginning and 120.9MB in the end (delta: 25.6MB). Peak memory consumption was 70.2MB. Max. memory is 8.0GB. [2023-12-23 08:34:24,347 INFO L158 Benchmark]: CDTParser took 0.44ms. Allocated memory is still 188.7MB. Free memory is still 145.9MB. There was no memory consumed. Max. memory is 8.0GB. [2023-12-23 08:34:24,347 INFO L158 Benchmark]: CACSL2BoogieTranslator took 285.17ms. Allocated memory is still 188.7MB. Free memory was 146.1MB in the beginning and 129.0MB in the end (delta: 17.1MB). Peak memory consumption was 16.8MB. Max. memory is 8.0GB. [2023-12-23 08:34:24,347 INFO L158 Benchmark]: Boogie Procedure Inliner took 39.67ms. Allocated memory is still 188.7MB. Free memory was 129.0MB in the beginning and 126.1MB in the end (delta: 2.8MB). Peak memory consumption was 3.1MB. Max. memory is 8.0GB. [2023-12-23 08:34:24,351 INFO L158 Benchmark]: Boogie Preprocessor took 65.53ms. Allocated memory is still 188.7MB. Free memory was 126.1MB in the beginning and 122.0MB in the end (delta: 4.2MB). Peak memory consumption was 4.2MB. Max. memory is 8.0GB. [2023-12-23 08:34:24,351 INFO L158 Benchmark]: RCFGBuilder took 11187.83ms. Allocated memory is still 188.7MB. Free memory was 122.0MB in the beginning and 160.0MB in the end (delta: -38.1MB). Peak memory consumption was 35.5MB. Max. memory is 8.0GB. [2023-12-23 08:34:24,351 INFO L158 Benchmark]: TraceAbstraction took 872505.07ms. Allocated memory was 188.7MB in the beginning and 232.8MB in the end (delta: 44.0MB). Free memory was 159.5MB in the beginning and 120.9MB in the end (delta: 38.7MB). Peak memory consumption was 82.8MB. Max. memory is 8.0GB. [2023-12-23 08:34:24,353 INFO L338 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.44ms. Allocated memory is still 188.7MB. Free memory is still 145.9MB. There was no memory consumed. Max. memory is 8.0GB. * CACSL2BoogieTranslator took 285.17ms. Allocated memory is still 188.7MB. Free memory was 146.1MB in the beginning and 129.0MB in the end (delta: 17.1MB). Peak memory consumption was 16.8MB. Max. memory is 8.0GB. * Boogie Procedure Inliner took 39.67ms. Allocated memory is still 188.7MB. Free memory was 129.0MB in the beginning and 126.1MB in the end (delta: 2.8MB). Peak memory consumption was 3.1MB. Max. memory is 8.0GB. * Boogie Preprocessor took 65.53ms. Allocated memory is still 188.7MB. Free memory was 126.1MB in the beginning and 122.0MB in the end (delta: 4.2MB). Peak memory consumption was 4.2MB. Max. memory is 8.0GB. * RCFGBuilder took 11187.83ms. Allocated memory is still 188.7MB. Free memory was 122.0MB in the beginning and 160.0MB in the end (delta: -38.1MB). Peak memory consumption was 35.5MB. Max. memory is 8.0GB. * TraceAbstraction took 872505.07ms. Allocated memory was 188.7MB in the beginning and 232.8MB in the end (delta: 44.0MB). Free memory was 159.5MB in the beginning and 120.9MB in the end (delta: 38.7MB). Peak memory consumption was 82.8MB. 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 NwaCegarLoop was analyzing trace of length 287 with TraceHistMax 47,while TraceCheckSpWp was constructing forward predicates,while executing Executor. - StatisticsResult: Ultimate Automizer benchmark data CFG has 2 procedures, 114 locations, 1 error locations. Started 1 CEGAR loops. OverallTime: 872.5s, OverallIterations: 9, TraceHistogramMax: 47, PathProgramHistogramMax: 1, EmptinessCheckTime: 0.1s, AutomataDifference: 248.7s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 53 mSolverCounterUnknown, 809 SdHoareTripleChecker+Valid, 246.2s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 809 mSDsluCounter, 4354 SdHoareTripleChecker+Invalid, 240.1s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 2449 mSDsCounter, 200 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 667 IncrementalHoareTripleChecker+Invalid, 920 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 200 mSolverCounterUnsat, 1905 mSDtfsCounter, 667 mSolverCounterSat, 0.1s SdHoareTripleChecker+Time, 53 IncrementalHoareTripleChecker+Unknown, PredicateUnifierStatistics: 0 DeclaredPredicates, 2274 GetRequests, 2252 SyntacticMatches, 0 SemanticMatches, 22 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 11 ImplicationChecksByTransitivity, 1.8s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=2212occurred in iteration=8, InterpolantAutomatonStates: 33, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: 0.7s AutomataMinimizationTime, 8 MinimizatonAttempts, 913 StatesRemovedByMinimization, 7 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.2s SsaConstructionTime, 7.7s SatisfiabilityAnalysisTime, 45.8s InterpolantComputationTime, 2273 NumberOfCodeBlocks, 2273 NumberOfCodeBlocksAsserted, 8 NumberOfCheckSat, 2265 ConstructedInterpolants, 0 QuantifiedInterpolants, 9327 SizeOfPredicates, 19 NumberOfNonLiveVariables, 3538 ConjunctsInSsa, 27 ConjunctsInUnsatCore, 8 InterpolantComputations, 8 PerfectInterpolantSequences, 34592/34592 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