/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-pr-cn_file-29.i -------------------------------------------------------------------------------- This is Ultimate 0.2.4-tmp.fs.bitabs-eval-d9c3e40-m [2023-12-16 12:18:39,445 INFO L188 SettingsManager]: Resetting all preferences to default values... [2023-12-16 12:18:39,515 INFO L114 SettingsManager]: Loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/settings/default/automizer/svcomp-Reach-32bit-Automizer_Bitvector.epf [2023-12-16 12:18:39,520 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2023-12-16 12:18:39,520 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2023-12-16 12:18:39,543 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2023-12-16 12:18:39,544 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2023-12-16 12:18:39,544 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2023-12-16 12:18:39,544 INFO L151 SettingsManager]: Preferences of Boogie Preprocessor differ from their defaults: [2023-12-16 12:18:39,547 INFO L153 SettingsManager]: * Use memory slicer=true [2023-12-16 12:18:39,547 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2023-12-16 12:18:39,548 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2023-12-16 12:18:39,548 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2023-12-16 12:18:39,549 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2023-12-16 12:18:39,549 INFO L153 SettingsManager]: * Use SBE=true [2023-12-16 12:18:39,550 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2023-12-16 12:18:39,550 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2023-12-16 12:18:39,550 INFO L153 SettingsManager]: * sizeof long=4 [2023-12-16 12:18:39,550 INFO L153 SettingsManager]: * sizeof POINTER=4 [2023-12-16 12:18:39,551 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2023-12-16 12:18:39,551 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2023-12-16 12:18:39,552 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2023-12-16 12:18:39,552 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2023-12-16 12:18:39,552 INFO L153 SettingsManager]: * Adapt memory model on pointer casts if necessary=true [2023-12-16 12:18:39,552 INFO L153 SettingsManager]: * Use bitvectors instead of ints=true [2023-12-16 12:18:39,552 INFO L153 SettingsManager]: * Allow undefined functions=false [2023-12-16 12:18:39,552 INFO L153 SettingsManager]: * Memory model=HoenickeLindenmann_4ByteResolution [2023-12-16 12:18:39,553 INFO L153 SettingsManager]: * sizeof long double=12 [2023-12-16 12:18:39,553 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2023-12-16 12:18:39,553 INFO L153 SettingsManager]: * Use constant arrays=true [2023-12-16 12:18:39,554 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2023-12-16 12:18:39,554 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2023-12-16 12:18:39,554 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2023-12-16 12:18:39,554 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2023-12-16 12:18:39,554 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2023-12-16 12:18:39,554 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2023-12-16 12:18:39,554 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2023-12-16 12:18:39,554 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2023-12-16 12:18:39,555 INFO L153 SettingsManager]: * Trace refinement strategy=WOLF [2023-12-16 12:18:39,555 INFO L153 SettingsManager]: * Command for external solver=cvc4 --incremental --print-success --lang smt [2023-12-16 12:18:39,555 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2023-12-16 12:18:39,555 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2023-12-16 12:18:39,555 INFO L153 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2023-12-16 12:18:39,555 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2023-12-16 12:18:39,555 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2023-12-16 12:18:39,556 INFO L153 SettingsManager]: * Logic for external solver=AUFBV [2023-12-16 12:18:39,556 INFO L153 SettingsManager]: * Looper check in Petri net analysis=SEMANTIC WARNING: An illegal reflective access operation has occurred WARNING: Illegal reflective access by com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 (file:/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/plugins/com.sun.xml.bind_2.2.0.v201505121915.jar) to method java.lang.ClassLoader.defineClass(java.lang.String,byte[],int,int) WARNING: Please consider reporting this to the maintainers of com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release [2023-12-16 12:18:39,762 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2023-12-16 12:18:39,782 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2023-12-16 12:18:39,785 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2023-12-16 12:18:39,786 INFO L270 PluginConnector]: Initializing CDTParser... [2023-12-16 12:18:39,786 INFO L274 PluginConnector]: CDTParser initialized [2023-12-16 12:18:39,788 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/hardness-nfm22/hardness_fillercode_fillercodestructure_filler-pr-cn_file-29.i [2023-12-16 12:18:40,815 INFO L533 CDTParser]: Created temporary CDT project at NULL [2023-12-16 12:18:40,980 INFO L384 CDTParser]: Found 1 translation units. [2023-12-16 12:18:40,980 INFO L180 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/hardness-nfm22/hardness_fillercode_fillercodestructure_filler-pr-cn_file-29.i [2023-12-16 12:18:40,987 INFO L427 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/af28759a4/da91a422742e4ec29c46efa8a93badb0/FLAG47321cb41 [2023-12-16 12:18:40,997 INFO L435 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/af28759a4/da91a422742e4ec29c46efa8a93badb0 [2023-12-16 12:18:40,999 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2023-12-16 12:18:41,000 INFO L133 ToolchainWalker]: Walking toolchain with 5 elements. [2023-12-16 12:18:41,001 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2023-12-16 12:18:41,001 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2023-12-16 12:18:41,004 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2023-12-16 12:18:41,005 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 16.12 12:18:40" (1/1) ... [2023-12-16 12:18:41,006 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@2c785f05 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.12 12:18:41, skipping insertion in model container [2023-12-16 12:18:41,006 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 16.12 12:18:40" (1/1) ... [2023-12-16 12:18:41,042 INFO L177 MainTranslator]: Built tables and reachable declarations [2023-12-16 12:18:41,166 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-pr-cn_file-29.i[919,932] [2023-12-16 12:18:41,257 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-12-16 12:18:41,273 INFO L202 MainTranslator]: Completed pre-run [2023-12-16 12:18:41,287 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-pr-cn_file-29.i[919,932] [2023-12-16 12:18:41,326 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-12-16 12:18:41,344 INFO L206 MainTranslator]: Completed translation [2023-12-16 12:18:41,344 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.12 12:18:41 WrapperNode [2023-12-16 12:18:41,344 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2023-12-16 12:18:41,345 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2023-12-16 12:18:41,345 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2023-12-16 12:18:41,345 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2023-12-16 12:18:41,350 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.12 12:18:41" (1/1) ... [2023-12-16 12:18:41,375 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.12 12:18:41" (1/1) ... [2023-12-16 12:18:41,408 INFO L138 Inliner]: procedures = 27, calls = 65, calls flagged for inlining = 8, calls inlined = 8, statements flattened = 257 [2023-12-16 12:18:41,408 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2023-12-16 12:18:41,409 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2023-12-16 12:18:41,409 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2023-12-16 12:18:41,409 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2023-12-16 12:18:41,419 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.12 12:18:41" (1/1) ... [2023-12-16 12:18:41,419 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.12 12:18:41" (1/1) ... [2023-12-16 12:18:41,425 INFO L184 PluginConnector]: Executing the observer MemorySlicer from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.12 12:18:41" (1/1) ... [2023-12-16 12:18:41,436 INFO L175 MemorySlicer]: Split 2 memory accesses to 1 slices as follows [2]. 100 percent of accesses are in the largest equivalence class. The 2 initializations are split as follows [2]. The 0 writes are split as follows [0]. [2023-12-16 12:18:41,436 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.12 12:18:41" (1/1) ... [2023-12-16 12:18:41,436 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.12 12:18:41" (1/1) ... [2023-12-16 12:18:41,443 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.12 12:18:41" (1/1) ... [2023-12-16 12:18:41,445 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.12 12:18:41" (1/1) ... [2023-12-16 12:18:41,447 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.12 12:18:41" (1/1) ... [2023-12-16 12:18:41,449 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.12 12:18:41" (1/1) ... [2023-12-16 12:18:41,451 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2023-12-16 12:18:41,465 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2023-12-16 12:18:41,465 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2023-12-16 12:18:41,465 INFO L274 PluginConnector]: RCFGBuilder initialized [2023-12-16 12:18:41,466 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.12 12:18:41" (1/1) ... [2023-12-16 12:18:41,469 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2023-12-16 12:18:41,479 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-12-16 12:18:41,488 INFO L229 MonitoredProcess]: Starting monitored process 1 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (exit command is (exit), workingDir is null) [2023-12-16 12:18:41,521 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (1)] Waiting until timeout for monitored process [2023-12-16 12:18:41,526 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2023-12-16 12:18:41,526 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE1#0 [2023-12-16 12:18:41,526 INFO L130 BoogieDeclarations]: Found specification of procedure assume_abort_if_not [2023-12-16 12:18:41,526 INFO L138 BoogieDeclarations]: Found implementation of procedure assume_abort_if_not [2023-12-16 12:18:41,526 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2023-12-16 12:18:41,526 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2023-12-16 12:18:41,646 INFO L241 CfgBuilder]: Building ICFG [2023-12-16 12:18:41,662 INFO L267 CfgBuilder]: Building CFG for each procedure with an implementation [2023-12-16 12:18:43,655 INFO L282 CfgBuilder]: Performing block encoding [2023-12-16 12:18:43,714 INFO L304 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2023-12-16 12:18:43,715 INFO L309 CfgBuilder]: Removed 1 assume(true) statements. [2023-12-16 12:18:43,715 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 16.12 12:18:43 BoogieIcfgContainer [2023-12-16 12:18:43,715 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2023-12-16 12:18:43,721 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2023-12-16 12:18:43,721 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2023-12-16 12:18:43,723 INFO L274 PluginConnector]: TraceAbstraction initialized [2023-12-16 12:18:43,724 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 16.12 12:18:40" (1/3) ... [2023-12-16 12:18:43,724 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@612b9a6c and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 16.12 12:18:43, skipping insertion in model container [2023-12-16 12:18:43,725 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.12 12:18:41" (2/3) ... [2023-12-16 12:18:43,725 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@612b9a6c and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 16.12 12:18:43, skipping insertion in model container [2023-12-16 12:18:43,725 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 16.12 12:18:43" (3/3) ... [2023-12-16 12:18:43,726 INFO L112 eAbstractionObserver]: Analyzing ICFG hardness_fillercode_fillercodestructure_filler-pr-cn_file-29.i [2023-12-16 12:18:43,740 INFO L204 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2023-12-16 12:18:43,741 INFO L163 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2023-12-16 12:18:43,780 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2023-12-16 12:18:43,789 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;@2740982f, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2023-12-16 12:18:43,790 INFO L358 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2023-12-16 12:18:43,794 INFO L276 IsEmpty]: Start isEmpty. Operand has 115 states, 60 states have (on average 1.4333333333333333) internal successors, (86), 61 states have internal predecessors, (86), 52 states have call successors, (52), 1 states have call predecessors, (52), 1 states have return successors, (52), 52 states have call predecessors, (52), 52 states have call successors, (52) [2023-12-16 12:18:43,820 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 306 [2023-12-16 12:18:43,820 INFO L187 NwaCegarLoop]: Found error trace [2023-12-16 12:18:43,821 INFO L195 NwaCegarLoop]: trace histogram [52, 52, 52, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-16 12:18:43,822 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-16 12:18:43,828 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-16 12:18:43,828 INFO L85 PathProgramCache]: Analyzing trace with hash 578661442, now seen corresponding path program 1 times [2023-12-16 12:18:43,842 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-12-16 12:18:43,842 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1626930951] [2023-12-16 12:18:43,842 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-16 12:18:43,843 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2023-12-16 12:18:43,843 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2023-12-16 12:18:43,849 INFO L229 MonitoredProcess]: Starting monitored process 2 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2023-12-16 12:18:43,856 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (2)] Waiting until timeout for monitored process [2023-12-16 12:18:44,334 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 12:18:44,355 INFO L262 TraceCheckSpWp]: Trace formula consists of 479 conjuncts, 1 conjunts are in the unsatisfiable core [2023-12-16 12:18:44,365 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-16 12:18:44,408 INFO L134 CoverageAnalysis]: Checked inductivity of 5304 backedges. 2582 proven. 0 refuted. 0 times theorem prover too weak. 2722 trivial. 0 not checked. [2023-12-16 12:18:44,408 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-12-16 12:18:44,409 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-12-16 12:18:44,409 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1626930951] [2023-12-16 12:18:44,410 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1626930951] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-16 12:18:44,410 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-16 12:18:44,410 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2023-12-16 12:18:44,411 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [661587083] [2023-12-16 12:18:44,412 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-16 12:18:44,415 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2023-12-16 12:18:44,416 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-12-16 12:18:44,435 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2023-12-16 12:18:44,435 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2023-12-16 12:18:44,437 INFO L87 Difference]: Start difference. First operand has 115 states, 60 states have (on average 1.4333333333333333) internal successors, (86), 61 states have internal predecessors, (86), 52 states have call successors, (52), 1 states have call predecessors, (52), 1 states have return successors, (52), 52 states have call predecessors, (52), 52 states have call successors, (52) Second operand has 2 states, 2 states have (on average 26.0) internal successors, (52), 2 states have internal predecessors, (52), 2 states have call successors, (52), 2 states have call predecessors, (52), 2 states have return successors, (52), 2 states have call predecessors, (52), 2 states have call successors, (52) [2023-12-16 12:18:46,734 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.24s for a HTC check with result INVALID. Formula has sorts [Bool, FloatingPoint, RoundingMode, Real, BitVec], hasArrays=false, hasNonlinArith=false, quantifiers [] [2023-12-16 12:18:46,735 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-16 12:18:46,735 INFO L93 Difference]: Finished difference Result 227 states and 430 transitions. [2023-12-16 12:18:46,766 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2023-12-16 12:18:46,768 INFO L78 Accepts]: Start accepts. Automaton has has 2 states, 2 states have (on average 26.0) internal successors, (52), 2 states have internal predecessors, (52), 2 states have call successors, (52), 2 states have call predecessors, (52), 2 states have return successors, (52), 2 states have call predecessors, (52), 2 states have call successors, (52) Word has length 305 [2023-12-16 12:18:46,768 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-16 12:18:46,774 INFO L225 Difference]: With dead ends: 227 [2023-12-16 12:18:46,774 INFO L226 Difference]: Without dead ends: 113 [2023-12-16 12:18:46,790 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 304 GetRequests, 304 SyntacticMatches, 0 SemanticMatches, 0 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2023-12-16 12:18:46,793 INFO L413 NwaCegarLoop]: 181 mSDtfsCounter, 0 mSDsluCounter, 0 mSDsCounter, 0 mSdLazyCounter, 3 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 181 SdHoareTripleChecker+Invalid, 3 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 3 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.3s IncrementalHoareTripleChecker+Time [2023-12-16 12:18:46,794 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 181 Invalid, 3 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 3 Invalid, 0 Unknown, 0 Unchecked, 2.3s Time] [2023-12-16 12:18:46,810 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 113 states. [2023-12-16 12:18:46,834 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 113 to 113. [2023-12-16 12:18:46,835 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 113 states, 59 states have (on average 1.3559322033898304) internal successors, (80), 59 states have internal predecessors, (80), 52 states have call successors, (52), 1 states have call predecessors, (52), 1 states have return successors, (52), 52 states have call predecessors, (52), 52 states have call successors, (52) [2023-12-16 12:18:46,837 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 113 states to 113 states and 184 transitions. [2023-12-16 12:18:46,838 INFO L78 Accepts]: Start accepts. Automaton has 113 states and 184 transitions. Word has length 305 [2023-12-16 12:18:46,838 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-16 12:18:46,838 INFO L495 AbstractCegarLoop]: Abstraction has 113 states and 184 transitions. [2023-12-16 12:18:46,838 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 2 states, 2 states have (on average 26.0) internal successors, (52), 2 states have internal predecessors, (52), 2 states have call successors, (52), 2 states have call predecessors, (52), 2 states have return successors, (52), 2 states have call predecessors, (52), 2 states have call successors, (52) [2023-12-16 12:18:46,839 INFO L276 IsEmpty]: Start isEmpty. Operand 113 states and 184 transitions. [2023-12-16 12:18:46,843 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 306 [2023-12-16 12:18:46,843 INFO L187 NwaCegarLoop]: Found error trace [2023-12-16 12:18:46,843 INFO L195 NwaCegarLoop]: trace histogram [52, 52, 52, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-16 12:18:46,879 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (2)] Forceful destruction successful, exit code 0 [2023-12-16 12:18:47,057 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2023-12-16 12:18:47,057 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-16 12:18:47,057 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-16 12:18:47,058 INFO L85 PathProgramCache]: Analyzing trace with hash -1650000266, now seen corresponding path program 1 times [2023-12-16 12:18:47,059 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-12-16 12:18:47,059 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1529030615] [2023-12-16 12:18:47,059 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-16 12:18:47,059 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2023-12-16 12:18:47,059 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2023-12-16 12:18:47,060 INFO L229 MonitoredProcess]: Starting monitored process 3 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2023-12-16 12:18:47,062 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (3)] Waiting until timeout for monitored process [2023-12-16 12:18:47,493 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 12:18:47,516 INFO L262 TraceCheckSpWp]: Trace formula consists of 479 conjuncts, 4 conjunts are in the unsatisfiable core [2023-12-16 12:18:47,523 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-16 12:18:47,975 INFO L134 CoverageAnalysis]: Checked inductivity of 5304 backedges. 2673 proven. 84 refuted. 0 times theorem prover too weak. 2547 trivial. 0 not checked. [2023-12-16 12:18:47,975 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-12-16 12:18:48,012 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-12-16 12:18:48,012 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1529030615] [2023-12-16 12:18:48,013 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1529030615] provided 0 perfect and 1 imperfect interpolant sequences [2023-12-16 12:18:48,013 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleCvc4 [85691144] [2023-12-16 12:18:48,013 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-16 12:18:48,013 INFO L173 SolverBuilder]: Constructing external solver with command: cvc4 --incremental --print-success --lang smt [2023-12-16 12:18:48,013 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/cvc4 [2023-12-16 12:18:48,015 INFO L229 MonitoredProcess]: Starting monitored process 4 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/cvc4 --incremental --print-success --lang smt (exit command is (exit), workingDir is null) [2023-12-16 12:18:48,033 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/cvc4 --incremental --print-success --lang smt (4)] Waiting until timeout for monitored process [2023-12-16 12:18:48,418 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 12:18:48,446 INFO L262 TraceCheckSpWp]: Trace formula consists of 479 conjuncts, 2 conjunts are in the unsatisfiable core [2023-12-16 12:18:48,452 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-16 12:18:49,178 INFO L134 CoverageAnalysis]: Checked inductivity of 5304 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 5304 trivial. 0 not checked. [2023-12-16 12:18:49,178 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-12-16 12:18:49,178 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleCvc4 [85691144] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-16 12:18:49,179 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2023-12-16 12:18:49,179 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [5] total 6 [2023-12-16 12:18:49,179 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [770407171] [2023-12-16 12:18:49,180 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-16 12:18:49,180 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-12-16 12:18:49,181 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-12-16 12:18:49,181 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-12-16 12:18:49,181 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=30, Unknown=0, NotChecked=0, Total=42 [2023-12-16 12:18:49,182 INFO L87 Difference]: Start difference. First operand 113 states and 184 transitions. Second operand has 3 states, 3 states have (on average 16.0) internal successors, (48), 2 states have internal predecessors, (48), 1 states have call successors, (52), 1 states have call predecessors, (52), 1 states have return successors, (52), 1 states have call predecessors, (52), 1 states have call successors, (52) [2023-12-16 12:18:51,526 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.30s for a HTC check with result INVALID. Formula has sorts [Bool, FloatingPoint, RoundingMode, Real, BitVec], hasArrays=false, hasNonlinArith=false, quantifiers [] [2023-12-16 12:18:51,608 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-16 12:18:51,608 INFO L93 Difference]: Finished difference Result 337 states and 550 transitions. [2023-12-16 12:18:51,608 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-12-16 12:18:51,609 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 16.0) internal successors, (48), 2 states have internal predecessors, (48), 1 states have call successors, (52), 1 states have call predecessors, (52), 1 states have return successors, (52), 1 states have call predecessors, (52), 1 states have call successors, (52) Word has length 305 [2023-12-16 12:18:51,610 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-16 12:18:51,612 INFO L225 Difference]: With dead ends: 337 [2023-12-16 12:18:51,612 INFO L226 Difference]: Without dead ends: 225 [2023-12-16 12:18:51,613 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 626 GetRequests, 621 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=12, Invalid=30, Unknown=0, NotChecked=0, Total=42 [2023-12-16 12:18:51,614 INFO L413 NwaCegarLoop]: 180 mSDtfsCounter, 36 mSDsluCounter, 178 mSDsCounter, 0 mSdLazyCounter, 8 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 36 SdHoareTripleChecker+Valid, 358 SdHoareTripleChecker+Invalid, 9 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 8 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.4s IncrementalHoareTripleChecker+Time [2023-12-16 12:18:51,614 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [36 Valid, 358 Invalid, 9 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 8 Invalid, 0 Unknown, 0 Unchecked, 2.4s Time] [2023-12-16 12:18:51,615 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 225 states. [2023-12-16 12:18:51,659 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 225 to 223. [2023-12-16 12:18:51,659 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 223 states, 116 states have (on average 1.353448275862069) internal successors, (157), 116 states have internal predecessors, (157), 104 states have call successors, (104), 2 states have call predecessors, (104), 2 states have return successors, (104), 104 states have call predecessors, (104), 104 states have call successors, (104) [2023-12-16 12:18:51,661 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 223 states to 223 states and 365 transitions. [2023-12-16 12:18:51,662 INFO L78 Accepts]: Start accepts. Automaton has 223 states and 365 transitions. Word has length 305 [2023-12-16 12:18:51,662 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-16 12:18:51,663 INFO L495 AbstractCegarLoop]: Abstraction has 223 states and 365 transitions. [2023-12-16 12:18:51,663 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 16.0) internal successors, (48), 2 states have internal predecessors, (48), 1 states have call successors, (52), 1 states have call predecessors, (52), 1 states have return successors, (52), 1 states have call predecessors, (52), 1 states have call successors, (52) [2023-12-16 12:18:51,663 INFO L276 IsEmpty]: Start isEmpty. Operand 223 states and 365 transitions. [2023-12-16 12:18:51,666 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 306 [2023-12-16 12:18:51,666 INFO L187 NwaCegarLoop]: Found error trace [2023-12-16 12:18:51,666 INFO L195 NwaCegarLoop]: trace histogram [52, 52, 52, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-16 12:18:51,678 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/cvc4 --incremental --print-success --lang smt (4)] Forceful destruction successful, exit code 0 [2023-12-16 12:18:51,883 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (3)] Forceful destruction successful, exit code 0 [2023-12-16 12:18:52,084 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 4 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/cvc4 --incremental --print-success --lang smt,3 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2023-12-16 12:18:52,084 INFO L420 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-16 12:18:52,085 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-16 12:18:52,085 INFO L85 PathProgramCache]: Analyzing trace with hash -1592741964, now seen corresponding path program 1 times [2023-12-16 12:18:52,086 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-12-16 12:18:52,086 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1722951239] [2023-12-16 12:18:52,086 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-16 12:18:52,086 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2023-12-16 12:18:52,086 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2023-12-16 12:18:52,087 INFO L229 MonitoredProcess]: Starting monitored process 5 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2023-12-16 12:18:52,092 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (5)] Waiting until timeout for monitored process [2023-12-16 12:18:52,453 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 12:18:52,475 INFO L262 TraceCheckSpWp]: Trace formula consists of 479 conjuncts, 4 conjunts are in the unsatisfiable core [2023-12-16 12:18:52,497 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-16 12:18:52,793 INFO L134 CoverageAnalysis]: Checked inductivity of 5304 backedges. 2673 proven. 84 refuted. 0 times theorem prover too weak. 2547 trivial. 0 not checked. [2023-12-16 12:18:52,794 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-12-16 12:18:52,824 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-12-16 12:18:52,824 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1722951239] [2023-12-16 12:18:52,824 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1722951239] provided 0 perfect and 1 imperfect interpolant sequences [2023-12-16 12:18:52,824 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleCvc4 [1139548884] [2023-12-16 12:18:52,825 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-16 12:18:52,825 INFO L173 SolverBuilder]: Constructing external solver with command: cvc4 --incremental --print-success --lang smt [2023-12-16 12:18:52,825 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/cvc4 [2023-12-16 12:18:52,826 INFO L229 MonitoredProcess]: Starting monitored process 6 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/cvc4 --incremental --print-success --lang smt (exit command is (exit), workingDir is null) [2023-12-16 12:18:52,840 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/cvc4 --incremental --print-success --lang smt (6)] Waiting until timeout for monitored process [2023-12-16 12:18:53,223 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 12:18:53,251 INFO L262 TraceCheckSpWp]: Trace formula consists of 479 conjuncts, 2 conjunts are in the unsatisfiable core [2023-12-16 12:18:53,255 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-16 12:18:53,279 INFO L134 CoverageAnalysis]: Checked inductivity of 5304 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 5304 trivial. 0 not checked. [2023-12-16 12:18:53,279 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-12-16 12:18:53,279 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleCvc4 [1139548884] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-16 12:18:53,279 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2023-12-16 12:18:53,279 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [5] total 6 [2023-12-16 12:18:53,280 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2103611346] [2023-12-16 12:18:53,280 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-16 12:18:53,280 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-12-16 12:18:53,280 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-12-16 12:18:53,281 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-12-16 12:18:53,281 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=30, Unknown=0, NotChecked=0, Total=42 [2023-12-16 12:18:53,281 INFO L87 Difference]: Start difference. First operand 223 states and 365 transitions. Second operand has 3 states, 3 states have (on average 16.0) internal successors, (48), 3 states have internal predecessors, (48), 1 states have call successors, (52), 1 states have call predecessors, (52), 1 states have return successors, (52), 1 states have call predecessors, (52), 1 states have call successors, (52) [2023-12-16 12:18:57,472 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.06s for a HTC check with result UNKNOWN. Formula has sorts [Bool, FloatingPoint, RoundingMode, Real, BitVec], hasArrays=false, hasNonlinArith=false, quantifiers [] [2023-12-16 12:18:59,663 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.97s for a HTC check with result INVALID. Formula has sorts [Bool, FloatingPoint, RoundingMode, Real, BitVec], hasArrays=false, hasNonlinArith=false, quantifiers [] [2023-12-16 12:18:59,705 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-16 12:18:59,705 INFO L93 Difference]: Finished difference Result 575 states and 935 transitions. [2023-12-16 12:18:59,705 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-12-16 12:18:59,706 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 16.0) internal successors, (48), 3 states have internal predecessors, (48), 1 states have call successors, (52), 1 states have call predecessors, (52), 1 states have return successors, (52), 1 states have call predecessors, (52), 1 states have call successors, (52) Word has length 305 [2023-12-16 12:18:59,706 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-16 12:18:59,709 INFO L225 Difference]: With dead ends: 575 [2023-12-16 12:18:59,709 INFO L226 Difference]: Without dead ends: 353 [2023-12-16 12:18:59,710 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 626 GetRequests, 621 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=12, Invalid=30, Unknown=0, NotChecked=0, Total=42 [2023-12-16 12:18:59,711 INFO L413 NwaCegarLoop]: 186 mSDtfsCounter, 103 mSDsluCounter, 166 mSDsCounter, 0 mSdLazyCounter, 18 mSolverCounterSat, 3 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 6.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 103 SdHoareTripleChecker+Valid, 352 SdHoareTripleChecker+Invalid, 22 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 3 IncrementalHoareTripleChecker+Valid, 18 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 6.4s IncrementalHoareTripleChecker+Time [2023-12-16 12:18:59,711 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [103 Valid, 352 Invalid, 22 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [3 Valid, 18 Invalid, 1 Unknown, 0 Unchecked, 6.4s Time] [2023-12-16 12:18:59,712 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 353 states. [2023-12-16 12:18:59,741 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 353 to 349. [2023-12-16 12:18:59,742 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 349 states, 178 states have (on average 1.3146067415730338) internal successors, (234), 180 states have internal predecessors, (234), 166 states have call successors, (166), 4 states have call predecessors, (166), 4 states have return successors, (166), 164 states have call predecessors, (166), 166 states have call successors, (166) [2023-12-16 12:18:59,744 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 349 states to 349 states and 566 transitions. [2023-12-16 12:18:59,744 INFO L78 Accepts]: Start accepts. Automaton has 349 states and 566 transitions. Word has length 305 [2023-12-16 12:18:59,744 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-16 12:18:59,745 INFO L495 AbstractCegarLoop]: Abstraction has 349 states and 566 transitions. [2023-12-16 12:18:59,745 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 16.0) internal successors, (48), 3 states have internal predecessors, (48), 1 states have call successors, (52), 1 states have call predecessors, (52), 1 states have return successors, (52), 1 states have call predecessors, (52), 1 states have call successors, (52) [2023-12-16 12:18:59,745 INFO L276 IsEmpty]: Start isEmpty. Operand 349 states and 566 transitions. [2023-12-16 12:18:59,747 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 306 [2023-12-16 12:18:59,747 INFO L187 NwaCegarLoop]: Found error trace [2023-12-16 12:18:59,748 INFO L195 NwaCegarLoop]: trace histogram [52, 52, 52, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-16 12:18:59,774 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (5)] Ended with exit code 0 [2023-12-16 12:18:59,975 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/cvc4 --incremental --print-success --lang smt (6)] Forceful destruction successful, exit code 0 [2023-12-16 12:19:00,162 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=3,6 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/cvc4 --incremental --print-success --lang smt [2023-12-16 12:19:00,163 INFO L420 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-16 12:19:00,163 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-16 12:19:00,163 INFO L85 PathProgramCache]: Analyzing trace with hash -687724172, now seen corresponding path program 1 times [2023-12-16 12:19:00,164 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-12-16 12:19:00,164 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [99764773] [2023-12-16 12:19:00,164 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-16 12:19:00,164 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2023-12-16 12:19:00,164 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2023-12-16 12:19:00,165 INFO L229 MonitoredProcess]: Starting monitored process 7 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2023-12-16 12:19:00,189 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (7)] Waiting until timeout for monitored process [2023-12-16 12:19:00,504 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 12:19:00,526 INFO L262 TraceCheckSpWp]: Trace formula consists of 478 conjuncts, 4 conjunts are in the unsatisfiable core [2023-12-16 12:19:00,531 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-16 12:19:00,816 INFO L134 CoverageAnalysis]: Checked inductivity of 5304 backedges. 2673 proven. 84 refuted. 0 times theorem prover too weak. 2547 trivial. 0 not checked. [2023-12-16 12:19:00,816 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-12-16 12:19:00,842 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-12-16 12:19:00,842 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [99764773] [2023-12-16 12:19:00,843 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [99764773] provided 0 perfect and 1 imperfect interpolant sequences [2023-12-16 12:19:00,843 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleCvc4 [125838453] [2023-12-16 12:19:00,843 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-16 12:19:00,843 INFO L173 SolverBuilder]: Constructing external solver with command: cvc4 --incremental --print-success --lang smt [2023-12-16 12:19:00,843 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/cvc4 [2023-12-16 12:19:00,848 INFO L229 MonitoredProcess]: Starting monitored process 8 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/cvc4 --incremental --print-success --lang smt (exit command is (exit), workingDir is null) [2023-12-16 12:19:00,869 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/cvc4 --incremental --print-success --lang smt (8)] Waiting until timeout for monitored process [2023-12-16 12:19:01,873 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 12:19:01,890 INFO L262 TraceCheckSpWp]: Trace formula consists of 478 conjuncts, 2 conjunts are in the unsatisfiable core [2023-12-16 12:19:01,914 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-16 12:19:01,979 INFO L134 CoverageAnalysis]: Checked inductivity of 5304 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 5304 trivial. 0 not checked. [2023-12-16 12:19:01,979 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-12-16 12:19:01,979 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleCvc4 [125838453] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-16 12:19:01,979 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2023-12-16 12:19:01,980 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [5] total 6 [2023-12-16 12:19:01,980 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [7282139] [2023-12-16 12:19:01,980 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-16 12:19:01,980 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-12-16 12:19:01,980 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-12-16 12:19:01,981 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-12-16 12:19:01,981 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=30, Unknown=0, NotChecked=0, Total=42 [2023-12-16 12:19:01,981 INFO L87 Difference]: Start difference. First operand 349 states and 566 transitions. Second operand has 3 states, 3 states have (on average 16.0) internal successors, (48), 3 states have internal predecessors, (48), 1 states have call successors, (52), 1 states have call predecessors, (52), 1 states have return successors, (52), 1 states have call predecessors, (52), 1 states have call successors, (52) [2023-12-16 12:19:04,199 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-16 12:19:04,201 INFO L93 Difference]: Finished difference Result 1043 states and 1692 transitions. [2023-12-16 12:19:04,201 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-12-16 12:19:04,201 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 16.0) internal successors, (48), 3 states have internal predecessors, (48), 1 states have call successors, (52), 1 states have call predecessors, (52), 1 states have return successors, (52), 1 states have call predecessors, (52), 1 states have call successors, (52) Word has length 305 [2023-12-16 12:19:04,202 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-16 12:19:04,207 INFO L225 Difference]: With dead ends: 1043 [2023-12-16 12:19:04,207 INFO L226 Difference]: Without dead ends: 695 [2023-12-16 12:19:04,213 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 626 GetRequests, 621 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=12, Invalid=30, Unknown=0, NotChecked=0, Total=42 [2023-12-16 12:19:04,215 INFO L413 NwaCegarLoop]: 325 mSDtfsCounter, 176 mSDsluCounter, 174 mSDsCounter, 0 mSdLazyCounter, 18 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 176 SdHoareTripleChecker+Valid, 499 SdHoareTripleChecker+Invalid, 19 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 18 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.2s IncrementalHoareTripleChecker+Time [2023-12-16 12:19:04,216 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [176 Valid, 499 Invalid, 19 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 18 Invalid, 0 Unknown, 0 Unchecked, 2.2s Time] [2023-12-16 12:19:04,219 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 695 states. [2023-12-16 12:19:04,274 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 695 to 693. [2023-12-16 12:19:04,276 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 693 states, 352 states have (on average 1.3011363636363635) internal successors, (458), 356 states have internal predecessors, (458), 332 states have call successors, (332), 8 states have call predecessors, (332), 8 states have return successors, (332), 328 states have call predecessors, (332), 332 states have call successors, (332) [2023-12-16 12:19:04,280 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 693 states to 693 states and 1122 transitions. [2023-12-16 12:19:04,281 INFO L78 Accepts]: Start accepts. Automaton has 693 states and 1122 transitions. Word has length 305 [2023-12-16 12:19:04,284 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-16 12:19:04,284 INFO L495 AbstractCegarLoop]: Abstraction has 693 states and 1122 transitions. [2023-12-16 12:19:04,285 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 16.0) internal successors, (48), 3 states have internal predecessors, (48), 1 states have call successors, (52), 1 states have call predecessors, (52), 1 states have return successors, (52), 1 states have call predecessors, (52), 1 states have call successors, (52) [2023-12-16 12:19:04,285 INFO L276 IsEmpty]: Start isEmpty. Operand 693 states and 1122 transitions. [2023-12-16 12:19:04,288 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 306 [2023-12-16 12:19:04,288 INFO L187 NwaCegarLoop]: Found error trace [2023-12-16 12:19:04,289 INFO L195 NwaCegarLoop]: trace histogram [52, 52, 52, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-16 12:19:04,302 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (7)] Ended with exit code 0 [2023-12-16 12:19:04,509 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/cvc4 --incremental --print-success --lang smt (8)] Ended with exit code 0 [2023-12-16 12:19:04,708 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=3,8 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/cvc4 --incremental --print-success --lang smt [2023-12-16 12:19:04,710 INFO L420 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-16 12:19:04,710 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-16 12:19:04,710 INFO L85 PathProgramCache]: Analyzing trace with hash 13340406, now seen corresponding path program 1 times [2023-12-16 12:19:04,711 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-12-16 12:19:04,711 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [575078720] [2023-12-16 12:19:04,711 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-16 12:19:04,711 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2023-12-16 12:19:04,711 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2023-12-16 12:19:04,714 INFO L229 MonitoredProcess]: Starting monitored process 9 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2023-12-16 12:19:04,720 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (9)] Waiting until timeout for monitored process [2023-12-16 12:19:05,073 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 12:19:05,092 INFO L262 TraceCheckSpWp]: Trace formula consists of 478 conjuncts, 4 conjunts are in the unsatisfiable core [2023-12-16 12:19:05,096 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-16 12:19:05,413 INFO L134 CoverageAnalysis]: Checked inductivity of 5304 backedges. 2673 proven. 84 refuted. 0 times theorem prover too weak. 2547 trivial. 0 not checked. [2023-12-16 12:19:05,413 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-12-16 12:19:05,443 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-12-16 12:19:05,444 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [575078720] [2023-12-16 12:19:05,444 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [575078720] provided 0 perfect and 1 imperfect interpolant sequences [2023-12-16 12:19:05,444 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleCvc4 [823854021] [2023-12-16 12:19:05,444 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-16 12:19:05,444 INFO L173 SolverBuilder]: Constructing external solver with command: cvc4 --incremental --print-success --lang smt [2023-12-16 12:19:05,444 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/cvc4 [2023-12-16 12:19:05,445 INFO L229 MonitoredProcess]: Starting monitored process 10 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/cvc4 --incremental --print-success --lang smt (exit command is (exit), workingDir is null) [2023-12-16 12:19:05,465 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/cvc4 --incremental --print-success --lang smt (10)] Waiting until timeout for monitored process [2023-12-16 12:19:06,537 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 12:19:06,554 INFO L262 TraceCheckSpWp]: Trace formula consists of 478 conjuncts, 6 conjunts are in the unsatisfiable core [2023-12-16 12:19:06,558 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-16 12:19:09,859 INFO L134 CoverageAnalysis]: Checked inductivity of 5304 backedges. 2703 proven. 75 refuted. 0 times theorem prover too weak. 2526 trivial. 0 not checked. [2023-12-16 12:19:09,859 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-12-16 12:19:10,243 INFO L134 CoverageAnalysis]: Checked inductivity of 5304 backedges. 78 proven. 75 refuted. 0 times theorem prover too weak. 5151 trivial. 0 not checked. [2023-12-16 12:19:10,243 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleCvc4 [823854021] provided 0 perfect and 2 imperfect interpolant sequences [2023-12-16 12:19:10,243 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2023-12-16 12:19:10,243 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [5, 6, 6] total 11 [2023-12-16 12:19:10,243 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1988621285] [2023-12-16 12:19:10,243 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2023-12-16 12:19:10,244 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 11 states [2023-12-16 12:19:10,244 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-12-16 12:19:10,245 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2023-12-16 12:19:10,245 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=32, Invalid=100, Unknown=0, NotChecked=0, Total=132 [2023-12-16 12:19:10,245 INFO L87 Difference]: Start difference. First operand 693 states and 1122 transitions. Second operand has 11 states, 11 states have (on average 9.090909090909092) internal successors, (100), 11 states have internal predecessors, (100), 4 states have call successors, (105), 3 states have call predecessors, (105), 5 states have return successors, (107), 4 states have call predecessors, (107), 4 states have call successors, (107) [2023-12-16 12:19:20,506 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.61s for a HTC check with result INVALID. Formula has sorts [Bool, FloatingPoint, RoundingMode, Real, BitVec], hasArrays=false, hasNonlinArith=false, quantifiers [0] [2023-12-16 12:19:26,586 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-16 12:19:26,586 INFO L93 Difference]: Finished difference Result 1865 states and 2923 transitions. [2023-12-16 12:19:26,592 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 32 states. [2023-12-16 12:19:26,592 INFO L78 Accepts]: Start accepts. Automaton has has 11 states, 11 states have (on average 9.090909090909092) internal successors, (100), 11 states have internal predecessors, (100), 4 states have call successors, (105), 3 states have call predecessors, (105), 5 states have return successors, (107), 4 states have call predecessors, (107), 4 states have call successors, (107) Word has length 305 [2023-12-16 12:19:26,593 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-16 12:19:26,613 INFO L225 Difference]: With dead ends: 1865 [2023-12-16 12:19:26,613 INFO L226 Difference]: Without dead ends: 1173 [2023-12-16 12:19:26,616 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 961 GetRequests, 923 SyntacticMatches, 0 SemanticMatches, 38 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 388 ImplicationChecksByTransitivity, 2.6s TimeCoverageRelationStatistics Valid=417, Invalid=1143, Unknown=0, NotChecked=0, Total=1560 [2023-12-16 12:19:26,618 INFO L413 NwaCegarLoop]: 185 mSDtfsCounter, 405 mSDsluCounter, 561 mSDsCounter, 0 mSdLazyCounter, 561 mSolverCounterSat, 531 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 13.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 406 SdHoareTripleChecker+Valid, 746 SdHoareTripleChecker+Invalid, 1092 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 531 IncrementalHoareTripleChecker+Valid, 561 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 13.9s IncrementalHoareTripleChecker+Time [2023-12-16 12:19:26,618 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [406 Valid, 746 Invalid, 1092 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [531 Valid, 561 Invalid, 0 Unknown, 0 Unchecked, 13.9s Time] [2023-12-16 12:19:26,620 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1173 states. [2023-12-16 12:19:26,693 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1173 to 767. [2023-12-16 12:19:26,694 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 767 states, 410 states have (on average 1.2634146341463415) internal successors, (518), 414 states have internal predecessors, (518), 332 states have call successors, (332), 24 states have call predecessors, (332), 24 states have return successors, (332), 328 states have call predecessors, (332), 332 states have call successors, (332) [2023-12-16 12:19:26,698 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 767 states to 767 states and 1182 transitions. [2023-12-16 12:19:26,698 INFO L78 Accepts]: Start accepts. Automaton has 767 states and 1182 transitions. Word has length 305 [2023-12-16 12:19:26,699 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-16 12:19:26,699 INFO L495 AbstractCegarLoop]: Abstraction has 767 states and 1182 transitions. [2023-12-16 12:19:26,699 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 11 states, 11 states have (on average 9.090909090909092) internal successors, (100), 11 states have internal predecessors, (100), 4 states have call successors, (105), 3 states have call predecessors, (105), 5 states have return successors, (107), 4 states have call predecessors, (107), 4 states have call successors, (107) [2023-12-16 12:19:26,699 INFO L276 IsEmpty]: Start isEmpty. Operand 767 states and 1182 transitions. [2023-12-16 12:19:26,703 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 307 [2023-12-16 12:19:26,703 INFO L187 NwaCegarLoop]: Found error trace [2023-12-16 12:19:26,703 INFO L195 NwaCegarLoop]: trace histogram [52, 52, 52, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-16 12:19:26,726 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (9)] Forceful destruction successful, exit code 0 [2023-12-16 12:19:26,924 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/cvc4 --incremental --print-success --lang smt (10)] Forceful destruction successful, exit code 0 [2023-12-16 12:19:27,124 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=3,10 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/cvc4 --incremental --print-success --lang smt [2023-12-16 12:19:27,124 INFO L420 AbstractCegarLoop]: === Iteration 6 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-16 12:19:27,125 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-16 12:19:27,125 INFO L85 PathProgramCache]: Analyzing trace with hash -1554102329, now seen corresponding path program 1 times [2023-12-16 12:19:27,125 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-12-16 12:19:27,125 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1664691368] [2023-12-16 12:19:27,125 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-16 12:19:27,125 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2023-12-16 12:19:27,126 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2023-12-16 12:19:27,126 INFO L229 MonitoredProcess]: Starting monitored process 11 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2023-12-16 12:19:27,129 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (11)] Waiting until timeout for monitored process [2023-12-16 12:19:27,519 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 12:19:27,539 INFO L262 TraceCheckSpWp]: Trace formula consists of 479 conjuncts, 12 conjunts are in the unsatisfiable core [2023-12-16 12:19:27,544 INFO L285 TraceCheckSpWp]: Computing forward predicates... Received shutdown request... [2023-12-16 12:19:54,209 WARN L340 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (1)] Timeout while monitored process is still running, waiting 1000 ms for graceful end [2023-12-16 12:19:54,210 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 (11)] Timeout while monitored process is still running, waiting 1000 ms for graceful end [2023-12-16 12:19:55,090 WARN L876 $PredicateComparison]: unable to prove that (let ((.cse1 ((_ to_fp 8 24) roundNearestTiesToEven 4611686018427382800.0)) (.cse0 ((_ to_fp 8 24) roundNearestTiesToEven (/ 1.0 100000000000000000000.0)))) (let ((.cse3 (fp.neg .cse0)) (.cse2 (fp.neg .cse1))) (let ((.cse4 (exists ((~var_1_26~0 (_ FloatingPoint 8 24))) (and (fp.leq ~var_1_26~0 .cse3) (fp.geq ~var_1_26~0 .cse2))))) (or (exists ((~var_1_25~0 (_ FloatingPoint 8 24))) (and (fp.geq ~var_1_25~0 .cse0) (fp.leq ~var_1_25~0 .cse1) (exists ((~var_1_24~0 (_ FloatingPoint 8 24))) (and (fp.geq ~var_1_24~0 .cse0) (= (fp.add roundNearestTiesToEven ~var_1_24~0 ~var_1_25~0) c_~var_1_23~0) (fp.leq ~var_1_24~0 .cse1))) (exists ((~var_1_26~0 (_ FloatingPoint 8 24))) (and (fp.geq ~var_1_26~0 .cse0) (fp.gt ~var_1_25~0 ~var_1_26~0))))) (exists ((~var_1_25~0 (_ FloatingPoint 8 24))) (and (fp.geq ~var_1_25~0 .cse2) (exists ((~var_1_24~0 (_ FloatingPoint 8 24))) (and (exists ((~var_1_26~0 (_ FloatingPoint 8 24))) (and (fp.leq ~var_1_26~0 .cse3) (not (fp.gt ~var_1_25~0 ~var_1_26~0)) (= c_~var_1_23~0 (fp.add roundNearestTiesToEven ~var_1_24~0 ~var_1_26~0)))) (fp.leq ~var_1_24~0 .cse3) (fp.geq ~var_1_24~0 .cse2))) (fp.leq ~var_1_25~0 .cse3))) (exists ((~var_1_25~0 (_ FloatingPoint 8 24))) (and (exists ((~var_1_24~0 (_ FloatingPoint 8 24))) (and (fp.geq ~var_1_24~0 .cse0) (= (fp.add roundNearestTiesToEven ~var_1_24~0 ~var_1_25~0) c_~var_1_23~0) (fp.leq ~var_1_24~0 .cse1))) (fp.geq ~var_1_25~0 .cse2) (exists ((~var_1_26~0 (_ FloatingPoint 8 24))) (and (fp.geq ~var_1_26~0 .cse2) (fp.gt ~var_1_25~0 ~var_1_26~0))) (fp.leq ~var_1_25~0 .cse3))) (exists ((~var_1_25~0 (_ FloatingPoint 8 24))) (and (fp.geq ~var_1_25~0 .cse0) (exists ((~var_1_24~0 (_ FloatingPoint 8 24))) (and (fp.geq ~var_1_24~0 .cse0) (exists ((~var_1_26~0 (_ FloatingPoint 8 24))) (and (fp.leq ~var_1_26~0 .cse1) (not (fp.gt ~var_1_25~0 ~var_1_26~0)) (= c_~var_1_23~0 (fp.add roundNearestTiesToEven ~var_1_24~0 ~var_1_26~0)))) (fp.leq ~var_1_24~0 .cse1))) (fp.leq ~var_1_25~0 .cse1))) (exists ((~var_1_25~0 (_ FloatingPoint 8 24))) (and (fp.geq ~var_1_25~0 .cse0) (fp.leq ~var_1_25~0 .cse1) (exists ((~var_1_24~0 (_ FloatingPoint 8 24))) (and (= (fp.add roundNearestTiesToEven ~var_1_24~0 ~var_1_25~0) c_~var_1_23~0) (fp.leq ~var_1_24~0 .cse3) (fp.geq ~var_1_24~0 .cse2))) .cse4)) (exists ((~var_1_25~0 (_ FloatingPoint 8 24))) (and (fp.geq ~var_1_25~0 .cse2) (fp.leq ~var_1_25~0 .cse3) (exists ((~var_1_24~0 (_ FloatingPoint 8 24))) (and (exists ((~var_1_26~0 (_ FloatingPoint 8 24))) (and (fp.leq ~var_1_26~0 .cse1) (fp.geq ~var_1_26~0 .cse0) (= c_~var_1_23~0 (fp.add roundNearestTiesToEven ~var_1_24~0 ~var_1_26~0)))) (fp.leq ~var_1_24~0 .cse3) (fp.geq ~var_1_24~0 .cse2))))) (exists ((~var_1_25~0 (_ FloatingPoint 8 24))) (and (fp.geq ~var_1_25~0 .cse2) (exists ((~var_1_26~0 (_ FloatingPoint 8 24))) (and (fp.geq ~var_1_26~0 .cse2) (fp.gt ~var_1_25~0 ~var_1_26~0))) (exists ((~var_1_24~0 (_ FloatingPoint 8 24))) (and (= (fp.add roundNearestTiesToEven ~var_1_24~0 ~var_1_25~0) c_~var_1_23~0) (fp.leq ~var_1_24~0 .cse3) (fp.geq ~var_1_24~0 .cse2))) (fp.leq ~var_1_25~0 .cse3))) (exists ((~var_1_25~0 (_ FloatingPoint 8 24))) (and (fp.geq ~var_1_25~0 .cse0) (fp.leq ~var_1_25~0 .cse1) (exists ((~var_1_24~0 (_ FloatingPoint 8 24))) (and (= (fp.add roundNearestTiesToEven ~var_1_24~0 ~var_1_25~0) c_~var_1_23~0) (fp.leq ~var_1_24~0 .cse3) (fp.geq ~var_1_24~0 .cse2))) (exists ((~var_1_26~0 (_ FloatingPoint 8 24))) (and (fp.geq ~var_1_26~0 .cse0) (fp.gt ~var_1_25~0 ~var_1_26~0))))) (exists ((~var_1_25~0 (_ FloatingPoint 8 24))) (and (fp.geq ~var_1_25~0 .cse2) (exists ((~var_1_24~0 (_ FloatingPoint 8 24))) (and (exists ((~var_1_26~0 (_ FloatingPoint 8 24))) (and (fp.leq ~var_1_26~0 .cse3) (not (fp.gt ~var_1_25~0 ~var_1_26~0)) (= c_~var_1_23~0 (fp.add roundNearestTiesToEven ~var_1_24~0 ~var_1_26~0)))) (fp.geq ~var_1_24~0 .cse0) (fp.leq ~var_1_24~0 .cse1))) (fp.leq ~var_1_25~0 .cse3))) (exists ((~var_1_25~0 (_ FloatingPoint 8 24))) (and (fp.geq ~var_1_25~0 .cse0) (fp.leq ~var_1_25~0 .cse1) (exists ((~var_1_24~0 (_ FloatingPoint 8 24))) (and (exists ((~var_1_26~0 (_ FloatingPoint 8 24))) (and (fp.leq ~var_1_26~0 .cse1) (not (fp.gt ~var_1_25~0 ~var_1_26~0)) (= c_~var_1_23~0 (fp.add roundNearestTiesToEven ~var_1_24~0 ~var_1_26~0)))) (fp.leq ~var_1_24~0 .cse3) (fp.geq ~var_1_24~0 .cse2))))) (exists ((~var_1_25~0 (_ FloatingPoint 8 24))) (and (fp.geq ~var_1_25~0 .cse0) (fp.leq ~var_1_25~0 .cse1) (exists ((~var_1_24~0 (_ FloatingPoint 8 24))) (and (fp.geq ~var_1_24~0 .cse0) (= (fp.add roundNearestTiesToEven ~var_1_24~0 ~var_1_25~0) c_~var_1_23~0) (fp.leq ~var_1_24~0 .cse1))) .cse4)) (exists ((~var_1_25~0 (_ FloatingPoint 8 24))) (and (fp.geq ~var_1_25~0 .cse2) (exists ((~var_1_24~0 (_ FloatingPoint 8 24))) (and (exists ((~var_1_26~0 (_ FloatingPoint 8 24))) (and (fp.leq ~var_1_26~0 .cse1) (fp.geq ~var_1_26~0 .cse0) (= c_~var_1_23~0 (fp.add roundNearestTiesToEven ~var_1_24~0 ~var_1_26~0)))) (fp.geq ~var_1_24~0 .cse0) (fp.leq ~var_1_24~0 .cse1))) (fp.leq ~var_1_25~0 .cse3))))))) is different from true [2023-12-16 12:19:55,094 INFO L805 garLoopResultBuilder]: Registering result TIMEOUT for location ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION (0 of 1 remaining) [2023-12-16 12:19:55,123 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (11)] Forceful destruction successful, exit code 0 [2023-12-16 12:19:55,294 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 11 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2023-12-16 12:19:55,295 WARN L619 AbstractCegarLoop]: Verification canceled: while NwaCegarLoop was analyzing trace of length 307 with TraceHistMax 52,while TraceCheckSpWp was constructing forward predicates,while PolyPacSimplificationTermWalker was simplifying a ∨-12-1 term,while PolyPacSimplificationTermWalker was simplifying 3 xjuncts wrt. a ∧-15-1 context. [2023-12-16 12:19:55,299 INFO L445 BasicCegarLoop]: Path program histogram: [1, 1, 1, 1, 1, 1] [2023-12-16 12:19:55,300 INFO L179 ceAbstractionStarter]: Computing trace abstraction results [2023-12-16 12:19:55,302 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 16.12 12:19:55 BoogieIcfgContainer [2023-12-16 12:19:55,302 INFO L131 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2023-12-16 12:19:55,302 INFO L158 Benchmark]: Toolchain (without parser) took 74302.58ms. Allocated memory is still 272.6MB. Free memory was 220.1MB in the beginning and 196.7MB in the end (delta: 23.4MB). Peak memory consumption was 23.3MB. Max. memory is 8.0GB. [2023-12-16 12:19:55,303 INFO L158 Benchmark]: CDTParser took 0.50ms. Allocated memory is still 203.4MB. Free memory is still 151.7MB. There was no memory consumed. Max. memory is 8.0GB. [2023-12-16 12:19:55,303 INFO L158 Benchmark]: CACSL2BoogieTranslator took 343.37ms. Allocated memory is still 272.6MB. Free memory was 219.6MB in the beginning and 202.2MB in the end (delta: 17.5MB). Peak memory consumption was 17.8MB. Max. memory is 8.0GB. [2023-12-16 12:19:55,303 INFO L158 Benchmark]: Boogie Procedure Inliner took 62.97ms. Allocated memory is still 272.6MB. Free memory was 202.2MB in the beginning and 199.6MB in the end (delta: 2.5MB). Peak memory consumption was 2.1MB. Max. memory is 8.0GB. [2023-12-16 12:19:55,303 INFO L158 Benchmark]: Boogie Preprocessor took 42.99ms. Allocated memory is still 272.6MB. Free memory was 199.1MB in the beginning and 195.5MB in the end (delta: 3.6MB). Peak memory consumption was 3.1MB. Max. memory is 8.0GB. [2023-12-16 12:19:55,303 INFO L158 Benchmark]: RCFGBuilder took 2250.54ms. Allocated memory is still 272.6MB. Free memory was 195.4MB in the beginning and 227.4MB in the end (delta: -32.0MB). Peak memory consumption was 26.2MB. Max. memory is 8.0GB. [2023-12-16 12:19:55,304 INFO L158 Benchmark]: TraceAbstraction took 71581.37ms. Allocated memory is still 272.6MB. Free memory was 226.9MB in the beginning and 196.7MB in the end (delta: 30.1MB). Peak memory consumption was 30.1MB. Max. memory is 8.0GB. [2023-12-16 12:19:55,306 INFO L338 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.50ms. Allocated memory is still 203.4MB. Free memory is still 151.7MB. There was no memory consumed. Max. memory is 8.0GB. * CACSL2BoogieTranslator took 343.37ms. Allocated memory is still 272.6MB. Free memory was 219.6MB in the beginning and 202.2MB in the end (delta: 17.5MB). Peak memory consumption was 17.8MB. Max. memory is 8.0GB. * Boogie Procedure Inliner took 62.97ms. Allocated memory is still 272.6MB. Free memory was 202.2MB in the beginning and 199.6MB in the end (delta: 2.5MB). Peak memory consumption was 2.1MB. Max. memory is 8.0GB. * Boogie Preprocessor took 42.99ms. Allocated memory is still 272.6MB. Free memory was 199.1MB in the beginning and 195.5MB in the end (delta: 3.6MB). Peak memory consumption was 3.1MB. Max. memory is 8.0GB. * RCFGBuilder took 2250.54ms. Allocated memory is still 272.6MB. Free memory was 195.4MB in the beginning and 227.4MB in the end (delta: -32.0MB). Peak memory consumption was 26.2MB. Max. memory is 8.0GB. * TraceAbstraction took 71581.37ms. Allocated memory is still 272.6MB. Free memory was 226.9MB in the beginning and 196.7MB in the end (delta: 30.1MB). Peak memory consumption was 30.1MB. 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 307 with TraceHistMax 52,while TraceCheckSpWp was constructing forward predicates,while PolyPacSimplificationTermWalker was simplifying a ∨-12-1 term,while PolyPacSimplificationTermWalker was simplifying 3 xjuncts wrt. a ∧-15-1 context. - StatisticsResult: Ultimate Automizer benchmark data CFG has 2 procedures, 115 locations, 1 error locations. Started 1 CEGAR loops. OverallTime: 71.5s, OverallIterations: 6, TraceHistogramMax: 52, PathProgramHistogramMax: 1, EmptinessCheckTime: 0.0s, AutomataDifference: 29.9s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 1 mSolverCounterUnknown, 721 SdHoareTripleChecker+Valid, 27.1s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 720 mSDsluCounter, 2136 SdHoareTripleChecker+Invalid, 26.1s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 1079 mSDsCounter, 536 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 608 IncrementalHoareTripleChecker+Invalid, 1145 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 536 mSolverCounterUnsat, 1057 mSDtfsCounter, 608 mSolverCounterSat, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Unknown, PredicateUnifierStatistics: 0 DeclaredPredicates, 3143 GetRequests, 3090 SyntacticMatches, 0 SemanticMatches, 53 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 391 ImplicationChecksByTransitivity, 2.7s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=767occurred in iteration=5, InterpolantAutomatonStates: 43, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: 0.3s AutomataMinimizationTime, 5 MinimizatonAttempts, 414 StatesRemovedByMinimization, 4 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.3s SsaConstructionTime, 4.2s SatisfiabilityAnalysisTime, 6.3s InterpolantComputationTime, 2745 NumberOfCodeBlocks, 2745 NumberOfCodeBlocksAsserted, 9 NumberOfCheckSat, 3040 ConstructedInterpolants, 144 QuantifiedInterpolants, 9429 SizeOfPredicates, 21 NumberOfNonLiveVariables, 4307 ConjunctsInSsa, 29 ConjunctsInUnsatCore, 10 InterpolantComputations, 4 PerfectInterpolantSequences, 52554/53040 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