/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_loopvsstraightlinecode_100-while_file-83.i -------------------------------------------------------------------------------- This is Ultimate 0.2.4-tmp.fs.bitabs-eval-d9c3e40-m [2023-12-23 23:37:02,816 INFO L188 SettingsManager]: Resetting all preferences to default values... [2023-12-23 23:37:02,879 INFO L114 SettingsManager]: Loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/settings/default/automizer/svcomp-Reach-32bit-Automizer_Bitvector.epf [2023-12-23 23:37:02,883 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2023-12-23 23:37:02,884 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2023-12-23 23:37:02,909 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2023-12-23 23:37:02,909 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2023-12-23 23:37:02,909 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2023-12-23 23:37:02,910 INFO L151 SettingsManager]: Preferences of Boogie Preprocessor differ from their defaults: [2023-12-23 23:37:02,913 INFO L153 SettingsManager]: * Use memory slicer=true [2023-12-23 23:37:02,913 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2023-12-23 23:37:02,913 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2023-12-23 23:37:02,913 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2023-12-23 23:37:02,914 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2023-12-23 23:37:02,914 INFO L153 SettingsManager]: * Use SBE=true [2023-12-23 23:37:02,915 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2023-12-23 23:37:02,915 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2023-12-23 23:37:02,915 INFO L153 SettingsManager]: * sizeof long=4 [2023-12-23 23:37:02,915 INFO L153 SettingsManager]: * sizeof POINTER=4 [2023-12-23 23:37:02,915 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2023-12-23 23:37:02,915 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2023-12-23 23:37:02,916 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2023-12-23 23:37:02,916 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2023-12-23 23:37:02,916 INFO L153 SettingsManager]: * Adapt memory model on pointer casts if necessary=true [2023-12-23 23:37:02,916 INFO L153 SettingsManager]: * Use bitvectors instead of ints=true [2023-12-23 23:37:02,916 INFO L153 SettingsManager]: * Allow undefined functions=false [2023-12-23 23:37:02,917 INFO L153 SettingsManager]: * Memory model=HoenickeLindenmann_4ByteResolution [2023-12-23 23:37:02,917 INFO L153 SettingsManager]: * sizeof long double=12 [2023-12-23 23:37:02,917 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2023-12-23 23:37:02,917 INFO L153 SettingsManager]: * Use constant arrays=true [2023-12-23 23:37:02,918 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2023-12-23 23:37:02,918 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2023-12-23 23:37:02,918 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2023-12-23 23:37:02,918 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2023-12-23 23:37:02,918 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2023-12-23 23:37:02,919 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2023-12-23 23:37:02,919 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2023-12-23 23:37:02,919 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2023-12-23 23:37:02,919 INFO L153 SettingsManager]: * Trace refinement strategy=WOLF [2023-12-23 23:37:02,919 INFO L153 SettingsManager]: * Command for external solver=cvc4 --incremental --print-success --lang smt [2023-12-23 23:37:02,919 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2023-12-23 23:37:02,919 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2023-12-23 23:37:02,920 INFO L153 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2023-12-23 23:37:02,920 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2023-12-23 23:37:02,920 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2023-12-23 23:37:02,920 INFO L153 SettingsManager]: * Logic for external solver=AUFBV [2023-12-23 23:37:02,920 INFO L153 SettingsManager]: * Looper check in Petri net analysis=SEMANTIC WARNING: An illegal reflective access operation has occurred WARNING: Illegal reflective access by com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 (file:/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/plugins/com.sun.xml.bind_2.2.0.v201505121915.jar) to method java.lang.ClassLoader.defineClass(java.lang.String,byte[],int,int) WARNING: Please consider reporting this to the maintainers of com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release [2023-12-23 23:37:03,099 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2023-12-23 23:37:03,119 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2023-12-23 23:37:03,121 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2023-12-23 23:37:03,122 INFO L270 PluginConnector]: Initializing CDTParser... [2023-12-23 23:37:03,122 INFO L274 PluginConnector]: CDTParser initialized [2023-12-23 23:37:03,123 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/hardness-nfm22/hardness_loopvsstraightlinecode_100-while_file-83.i [2023-12-23 23:37:04,200 INFO L533 CDTParser]: Created temporary CDT project at NULL [2023-12-23 23:37:04,367 INFO L384 CDTParser]: Found 1 translation units. [2023-12-23 23:37:04,367 INFO L180 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/hardness-nfm22/hardness_loopvsstraightlinecode_100-while_file-83.i [2023-12-23 23:37:04,374 INFO L427 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/9b51c79a2/35f5a432535344a2958e44a2db6d7e04/FLAGf208f85b7 [2023-12-23 23:37:04,392 INFO L435 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/9b51c79a2/35f5a432535344a2958e44a2db6d7e04 [2023-12-23 23:37:04,394 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2023-12-23 23:37:04,395 INFO L133 ToolchainWalker]: Walking toolchain with 5 elements. [2023-12-23 23:37:04,396 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2023-12-23 23:37:04,396 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2023-12-23 23:37:04,400 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2023-12-23 23:37:04,401 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 23.12 11:37:04" (1/1) ... [2023-12-23 23:37:04,401 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@3849c316 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.12 11:37:04, skipping insertion in model container [2023-12-23 23:37:04,401 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 23.12 11:37:04" (1/1) ... [2023-12-23 23:37:04,439 INFO L177 MainTranslator]: Built tables and reachable declarations [2023-12-23 23:37:04,541 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_loopvsstraightlinecode_100-while_file-83.i[916,929] [2023-12-23 23:37:04,592 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-12-23 23:37:04,609 INFO L202 MainTranslator]: Completed pre-run [2023-12-23 23:37:04,617 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_loopvsstraightlinecode_100-while_file-83.i[916,929] [2023-12-23 23:37:04,646 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-12-23 23:37:04,659 INFO L206 MainTranslator]: Completed translation [2023-12-23 23:37:04,660 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.12 11:37:04 WrapperNode [2023-12-23 23:37:04,660 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2023-12-23 23:37:04,661 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2023-12-23 23:37:04,661 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2023-12-23 23:37:04,661 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2023-12-23 23:37:04,665 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.12 11:37:04" (1/1) ... [2023-12-23 23:37:04,684 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.12 11:37:04" (1/1) ... [2023-12-23 23:37:04,709 INFO L138 Inliner]: procedures = 27, calls = 42, calls flagged for inlining = 8, calls inlined = 8, statements flattened = 185 [2023-12-23 23:37:04,710 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2023-12-23 23:37:04,710 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2023-12-23 23:37:04,710 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2023-12-23 23:37:04,710 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2023-12-23 23:37:04,720 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.12 11:37:04" (1/1) ... [2023-12-23 23:37:04,720 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.12 11:37:04" (1/1) ... [2023-12-23 23:37:04,726 INFO L184 PluginConnector]: Executing the observer MemorySlicer from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.12 11:37:04" (1/1) ... [2023-12-23 23:37:04,735 INFO L175 MemorySlicer]: Split 2 memory accesses to 1 slices as follows [2]. 100 percent of accesses are in the largest equivalence class. The 2 initializations are split as follows [2]. The 0 writes are split as follows [0]. [2023-12-23 23:37:04,735 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.12 11:37:04" (1/1) ... [2023-12-23 23:37:04,736 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.12 11:37:04" (1/1) ... [2023-12-23 23:37:04,744 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.12 11:37:04" (1/1) ... [2023-12-23 23:37:04,747 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.12 11:37:04" (1/1) ... [2023-12-23 23:37:04,749 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.12 11:37:04" (1/1) ... [2023-12-23 23:37:04,750 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.12 11:37:04" (1/1) ... [2023-12-23 23:37:04,753 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2023-12-23 23:37:04,754 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2023-12-23 23:37:04,754 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2023-12-23 23:37:04,754 INFO L274 PluginConnector]: RCFGBuilder initialized [2023-12-23 23:37:04,755 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.12 11:37:04" (1/1) ... [2023-12-23 23:37:04,759 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2023-12-23 23:37:04,768 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-12-23 23:37:04,793 INFO L229 MonitoredProcess]: Starting monitored process 1 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (exit command is (exit), workingDir is null) [2023-12-23 23:37:04,808 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (1)] Waiting until timeout for monitored process [2023-12-23 23:37:04,813 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2023-12-23 23:37:04,813 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE1#0 [2023-12-23 23:37:04,813 INFO L130 BoogieDeclarations]: Found specification of procedure assume_abort_if_not [2023-12-23 23:37:04,813 INFO L138 BoogieDeclarations]: Found implementation of procedure assume_abort_if_not [2023-12-23 23:37:04,813 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2023-12-23 23:37:04,813 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2023-12-23 23:37:04,875 INFO L241 CfgBuilder]: Building ICFG [2023-12-23 23:37:04,878 INFO L267 CfgBuilder]: Building CFG for each procedure with an implementation [2023-12-23 23:37:12,063 INFO L282 CfgBuilder]: Performing block encoding [2023-12-23 23:37:12,100 INFO L304 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2023-12-23 23:37:12,100 INFO L309 CfgBuilder]: Removed 1 assume(true) statements. [2023-12-23 23:37:12,100 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 23.12 11:37:12 BoogieIcfgContainer [2023-12-23 23:37:12,101 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2023-12-23 23:37:12,102 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2023-12-23 23:37:12,102 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2023-12-23 23:37:12,105 INFO L274 PluginConnector]: TraceAbstraction initialized [2023-12-23 23:37:12,105 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 23.12 11:37:04" (1/3) ... [2023-12-23 23:37:12,105 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@284b7471 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 23.12 11:37:12, skipping insertion in model container [2023-12-23 23:37:12,105 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.12 11:37:04" (2/3) ... [2023-12-23 23:37:12,106 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@284b7471 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 23.12 11:37:12, skipping insertion in model container [2023-12-23 23:37:12,106 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 23.12 11:37:12" (3/3) ... [2023-12-23 23:37:12,107 INFO L112 eAbstractionObserver]: Analyzing ICFG hardness_loopvsstraightlinecode_100-while_file-83.i [2023-12-23 23:37:12,120 INFO L204 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2023-12-23 23:37:12,120 INFO L163 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2023-12-23 23:37:12,154 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2023-12-23 23:37:12,163 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;@501d4b8b, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2023-12-23 23:37:12,163 INFO L358 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2023-12-23 23:37:12,167 INFO L276 IsEmpty]: Start isEmpty. Operand has 77 states, 45 states have (on average 1.4444444444444444) internal successors, (65), 46 states have internal predecessors, (65), 29 states have call successors, (29), 1 states have call predecessors, (29), 1 states have return successors, (29), 29 states have call predecessors, (29), 29 states have call successors, (29) [2023-12-23 23:37:12,178 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 182 [2023-12-23 23:37:12,178 INFO L187 NwaCegarLoop]: Found error trace [2023-12-23 23:37:12,178 INFO L195 NwaCegarLoop]: trace histogram [29, 29, 29, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-23 23:37:12,201 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-23 23:37:12,205 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-23 23:37:12,206 INFO L85 PathProgramCache]: Analyzing trace with hash -1682590480, now seen corresponding path program 1 times [2023-12-23 23:37:12,219 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-12-23 23:37:12,219 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1516379654] [2023-12-23 23:37:12,219 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-23 23:37:12,220 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2023-12-23 23:37:12,220 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2023-12-23 23:37:12,225 INFO L229 MonitoredProcess]: Starting monitored process 2 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2023-12-23 23:37:12,231 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (2)] Waiting until timeout for monitored process [2023-12-23 23:37:12,571 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-23 23:37:12,587 INFO L262 TraceCheckSpWp]: Trace formula consists of 297 conjuncts, 1 conjunts are in the unsatisfiable core [2023-12-23 23:37:12,594 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-23 23:37:12,640 INFO L134 CoverageAnalysis]: Checked inductivity of 1624 backedges. 824 proven. 0 refuted. 0 times theorem prover too weak. 800 trivial. 0 not checked. [2023-12-23 23:37:12,641 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-12-23 23:37:12,641 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-12-23 23:37:12,641 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1516379654] [2023-12-23 23:37:12,642 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1516379654] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-23 23:37:12,642 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-23 23:37:12,642 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2023-12-23 23:37:12,643 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1786570097] [2023-12-23 23:37:12,643 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-23 23:37:12,647 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2023-12-23 23:37:12,647 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-12-23 23:37:12,667 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2023-12-23 23:37:12,667 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2023-12-23 23:37:12,669 INFO L87 Difference]: Start difference. First operand has 77 states, 45 states have (on average 1.4444444444444444) internal successors, (65), 46 states have internal predecessors, (65), 29 states have call successors, (29), 1 states have call predecessors, (29), 1 states have return successors, (29), 29 states have call predecessors, (29), 29 states have call successors, (29) Second operand has 2 states, 2 states have (on average 21.5) internal successors, (43), 2 states have internal predecessors, (43), 2 states have call successors, (29), 2 states have call predecessors, (29), 2 states have return successors, (29), 2 states have call predecessors, (29), 2 states have call successors, (29) [2023-12-23 23:37:16,867 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.15s for a HTC check with result UNKNOWN. Formula has sorts [Bool, FloatingPoint, RoundingMode, Real, BitVec], hasArrays=false, hasNonlinArith=false, quantifiers [] [2023-12-23 23:37:16,867 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-23 23:37:16,867 INFO L93 Difference]: Finished difference Result 151 states and 273 transitions. [2023-12-23 23:37:16,921 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2023-12-23 23:37:16,922 INFO L78 Accepts]: Start accepts. Automaton has has 2 states, 2 states have (on average 21.5) internal successors, (43), 2 states have internal predecessors, (43), 2 states have call successors, (29), 2 states have call predecessors, (29), 2 states have return successors, (29), 2 states have call predecessors, (29), 2 states have call successors, (29) Word has length 181 [2023-12-23 23:37:16,922 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-23 23:37:16,927 INFO L225 Difference]: With dead ends: 151 [2023-12-23 23:37:16,927 INFO L226 Difference]: Without dead ends: 75 [2023-12-23 23:37:16,929 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 180 GetRequests, 180 SyntacticMatches, 0 SemanticMatches, 0 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2023-12-23 23:37:16,931 INFO L413 NwaCegarLoop]: 114 mSDtfsCounter, 0 mSDsluCounter, 0 mSDsCounter, 0 mSdLazyCounter, 2 mSolverCounterSat, 0 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 4.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 114 SdHoareTripleChecker+Invalid, 3 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 2 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 4.2s IncrementalHoareTripleChecker+Time [2023-12-23 23:37:16,932 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 114 Invalid, 3 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 2 Invalid, 1 Unknown, 0 Unchecked, 4.2s Time] [2023-12-23 23:37:16,955 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 75 states. [2023-12-23 23:37:16,973 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 75 to 75. [2023-12-23 23:37:16,974 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 75 states, 44 states have (on average 1.3409090909090908) internal successors, (59), 44 states have internal predecessors, (59), 29 states have call successors, (29), 1 states have call predecessors, (29), 1 states have return successors, (29), 29 states have call predecessors, (29), 29 states have call successors, (29) [2023-12-23 23:37:16,975 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 75 states to 75 states and 117 transitions. [2023-12-23 23:37:16,976 INFO L78 Accepts]: Start accepts. Automaton has 75 states and 117 transitions. Word has length 181 [2023-12-23 23:37:16,976 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-23 23:37:16,976 INFO L495 AbstractCegarLoop]: Abstraction has 75 states and 117 transitions. [2023-12-23 23:37:16,976 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 2 states, 2 states have (on average 21.5) internal successors, (43), 2 states have internal predecessors, (43), 2 states have call successors, (29), 2 states have call predecessors, (29), 2 states have return successors, (29), 2 states have call predecessors, (29), 2 states have call successors, (29) [2023-12-23 23:37:16,977 INFO L276 IsEmpty]: Start isEmpty. Operand 75 states and 117 transitions. [2023-12-23 23:37:16,979 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 182 [2023-12-23 23:37:16,979 INFO L187 NwaCegarLoop]: Found error trace [2023-12-23 23:37:16,980 INFO L195 NwaCegarLoop]: trace histogram [29, 29, 29, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-23 23:37:16,994 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (2)] Forceful destruction successful, exit code 0 [2023-12-23 23:37:17,191 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2023-12-23 23:37:17,192 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-23 23:37:17,192 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-23 23:37:17,192 INFO L85 PathProgramCache]: Analyzing trace with hash -126565196, now seen corresponding path program 1 times [2023-12-23 23:37:17,193 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-12-23 23:37:17,193 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1168046139] [2023-12-23 23:37:17,193 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-23 23:37:17,193 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2023-12-23 23:37:17,193 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2023-12-23 23:37:17,194 INFO L229 MonitoredProcess]: Starting monitored process 3 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2023-12-23 23:37:17,198 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (3)] Waiting until timeout for monitored process [2023-12-23 23:37:17,530 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-23 23:37:17,550 INFO L262 TraceCheckSpWp]: Trace formula consists of 298 conjuncts, 4 conjunts are in the unsatisfiable core [2023-12-23 23:37:17,555 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-23 23:37:18,670 INFO L134 CoverageAnalysis]: Checked inductivity of 1624 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 1624 trivial. 0 not checked. [2023-12-23 23:37:18,671 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-12-23 23:37:18,671 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-12-23 23:37:18,671 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1168046139] [2023-12-23 23:37:18,671 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1168046139] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-23 23:37:18,671 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-23 23:37:18,671 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2023-12-23 23:37:18,671 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [37090037] [2023-12-23 23:37:18,671 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-23 23:37:18,673 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2023-12-23 23:37:18,673 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-12-23 23:37:18,673 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2023-12-23 23:37:18,673 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2023-12-23 23:37:18,674 INFO L87 Difference]: Start difference. First operand 75 states and 117 transitions. Second operand has 5 states, 5 states have (on average 7.8) internal successors, (39), 4 states have internal predecessors, (39), 1 states have call successors, (29), 1 states have call predecessors, (29), 1 states have return successors, (29), 1 states have call predecessors, (29), 1 states have call successors, (29) [2023-12-23 23:37:24,468 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.13s for a HTC check with result UNKNOWN. Formula has sorts [Bool, FloatingPoint, RoundingMode, Real, BitVec], hasArrays=false, hasNonlinArith=false, quantifiers [] [2023-12-23 23:37:28,481 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.01s for a HTC check with result UNKNOWN. Formula has sorts [Bool, FloatingPoint, RoundingMode, Real, BitVec], hasArrays=false, hasNonlinArith=false, quantifiers [] [2023-12-23 23:37:32,487 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.00s for a HTC check with result INVALID. Formula has sorts [Bool, FloatingPoint, RoundingMode, Real, BitVec], hasArrays=false, hasNonlinArith=false, quantifiers [] [2023-12-23 23:37:34,539 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.05s for a HTC check with result INVALID. Formula has sorts [Bool, FloatingPoint, RoundingMode, Real, BitVec], hasArrays=false, hasNonlinArith=false, quantifiers [] [2023-12-23 23:37:39,468 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.15s for a HTC check with result UNKNOWN. Formula has sorts [Bool, FloatingPoint, RoundingMode, Real, BitVec], hasArrays=false, hasNonlinArith=false, quantifiers [] [2023-12-23 23:37:39,469 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-23 23:37:39,470 INFO L93 Difference]: Finished difference Result 298 states and 466 transitions. [2023-12-23 23:37:39,537 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2023-12-23 23:37:39,537 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 7.8) internal successors, (39), 4 states have internal predecessors, (39), 1 states have call successors, (29), 1 states have call predecessors, (29), 1 states have return successors, (29), 1 states have call predecessors, (29), 1 states have call successors, (29) Word has length 181 [2023-12-23 23:37:39,538 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-23 23:37:39,540 INFO L225 Difference]: With dead ends: 298 [2023-12-23 23:37:39,540 INFO L226 Difference]: Without dead ends: 224 [2023-12-23 23:37:39,541 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 183 GetRequests, 177 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=22, Invalid=34, Unknown=0, NotChecked=0, Total=56 [2023-12-23 23:37:39,542 INFO L413 NwaCegarLoop]: 188 mSDtfsCounter, 254 mSDsluCounter, 328 mSDsCounter, 0 mSdLazyCounter, 30 mSolverCounterSat, 62 mSolverCounterUnsat, 3 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 20.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 254 SdHoareTripleChecker+Valid, 516 SdHoareTripleChecker+Invalid, 95 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 62 IncrementalHoareTripleChecker+Valid, 30 IncrementalHoareTripleChecker+Invalid, 3 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 20.6s IncrementalHoareTripleChecker+Time [2023-12-23 23:37:39,542 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [254 Valid, 516 Invalid, 95 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [62 Valid, 30 Invalid, 3 Unknown, 0 Unchecked, 20.6s Time] [2023-12-23 23:37:39,543 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 224 states. [2023-12-23 23:37:39,590 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 224 to 141. [2023-12-23 23:37:39,591 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 141 states, 80 states have (on average 1.2875) internal successors, (103), 80 states have internal predecessors, (103), 58 states have call successors, (58), 2 states have call predecessors, (58), 2 states have return successors, (58), 58 states have call predecessors, (58), 58 states have call successors, (58) [2023-12-23 23:37:39,600 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 141 states to 141 states and 219 transitions. [2023-12-23 23:37:39,601 INFO L78 Accepts]: Start accepts. Automaton has 141 states and 219 transitions. Word has length 181 [2023-12-23 23:37:39,604 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-23 23:37:39,605 INFO L495 AbstractCegarLoop]: Abstraction has 141 states and 219 transitions. [2023-12-23 23:37:39,605 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 7.8) internal successors, (39), 4 states have internal predecessors, (39), 1 states have call successors, (29), 1 states have call predecessors, (29), 1 states have return successors, (29), 1 states have call predecessors, (29), 1 states have call successors, (29) [2023-12-23 23:37:39,605 INFO L276 IsEmpty]: Start isEmpty. Operand 141 states and 219 transitions. [2023-12-23 23:37:39,613 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 182 [2023-12-23 23:37:39,613 INFO L187 NwaCegarLoop]: Found error trace [2023-12-23 23:37:39,614 INFO L195 NwaCegarLoop]: trace histogram [29, 29, 29, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-23 23:37:39,625 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (3)] Forceful destruction successful, exit code 0 [2023-12-23 23:37:39,814 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 3 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2023-12-23 23:37:39,815 INFO L420 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-23 23:37:39,815 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-23 23:37:39,815 INFO L85 PathProgramCache]: Analyzing trace with hash -1714913098, now seen corresponding path program 1 times [2023-12-23 23:37:39,816 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-12-23 23:37:39,816 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [536966992] [2023-12-23 23:37:39,816 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-23 23:37:39,816 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2023-12-23 23:37:39,816 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2023-12-23 23:37:39,819 INFO L229 MonitoredProcess]: Starting monitored process 4 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2023-12-23 23:37:39,821 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (4)] Waiting until timeout for monitored process [2023-12-23 23:37:40,301 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-23 23:37:40,319 INFO L262 TraceCheckSpWp]: Trace formula consists of 298 conjuncts, 6 conjunts are in the unsatisfiable core [2023-12-23 23:37:40,324 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-23 23:37:46,955 INFO L134 CoverageAnalysis]: Checked inductivity of 1624 backedges. 820 proven. 48 refuted. 0 times theorem prover too weak. 756 trivial. 0 not checked. [2023-12-23 23:37:46,955 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-12-23 23:37:47,359 INFO L134 CoverageAnalysis]: Checked inductivity of 1624 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 1624 trivial. 0 not checked. [2023-12-23 23:37:47,360 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-12-23 23:37:47,360 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [536966992] [2023-12-23 23:37:47,360 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [536966992] provided 1 perfect and 1 imperfect interpolant sequences [2023-12-23 23:37:47,360 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2023-12-23 23:37:47,360 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [6] total 8 [2023-12-23 23:37:47,360 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2069682965] [2023-12-23 23:37:47,361 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-23 23:37:47,361 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-12-23 23:37:47,361 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-12-23 23:37:47,362 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-12-23 23:37:47,362 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=17, Invalid=39, Unknown=0, NotChecked=0, Total=56 [2023-12-23 23:37:47,362 INFO L87 Difference]: Start difference. First operand 141 states and 219 transitions. Second operand has 3 states, 3 states have (on average 13.0) internal successors, (39), 3 states have internal predecessors, (39), 1 states have call successors, (29), 1 states have call predecessors, (29), 1 states have return successors, (29), 1 states have call predecessors, (29), 1 states have call successors, (29) [2023-12-23 23:37:52,681 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.13s for a HTC check with result UNKNOWN. Formula has sorts [Bool, FloatingPoint, RoundingMode, Real, BitVec], hasArrays=false, hasNonlinArith=false, quantifiers [] [2023-12-23 23:37:52,684 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-23 23:37:52,684 INFO L93 Difference]: Finished difference Result 227 states and 346 transitions. [2023-12-23 23:37:52,740 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-12-23 23:37:52,741 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 13.0) internal successors, (39), 3 states have internal predecessors, (39), 1 states have call successors, (29), 1 states have call predecessors, (29), 1 states have return successors, (29), 1 states have call predecessors, (29), 1 states have call successors, (29) Word has length 181 [2023-12-23 23:37:52,741 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-23 23:37:52,744 INFO L225 Difference]: With dead ends: 227 [2023-12-23 23:37:52,744 INFO L226 Difference]: Without dead ends: 149 [2023-12-23 23:37:52,745 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 360 GetRequests, 354 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 6 ImplicationChecksByTransitivity, 1.5s TimeCoverageRelationStatistics Valid=17, Invalid=39, Unknown=0, NotChecked=0, Total=56 [2023-12-23 23:37:52,746 INFO L413 NwaCegarLoop]: 110 mSDtfsCounter, 58 mSDsluCounter, 50 mSDsCounter, 0 mSdLazyCounter, 12 mSolverCounterSat, 1 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 5.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 58 SdHoareTripleChecker+Valid, 160 SdHoareTripleChecker+Invalid, 14 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 12 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 5.3s IncrementalHoareTripleChecker+Time [2023-12-23 23:37:52,746 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [58 Valid, 160 Invalid, 14 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 12 Invalid, 1 Unknown, 0 Unchecked, 5.3s Time] [2023-12-23 23:37:52,747 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 149 states. [2023-12-23 23:37:52,761 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 149 to 149. [2023-12-23 23:37:52,762 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 149 states, 86 states have (on average 1.244186046511628) internal successors, (107), 86 states have internal predecessors, (107), 58 states have call successors, (58), 4 states have call predecessors, (58), 4 states have return successors, (58), 58 states have call predecessors, (58), 58 states have call successors, (58) [2023-12-23 23:37:52,762 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 149 states to 149 states and 223 transitions. [2023-12-23 23:37:52,763 INFO L78 Accepts]: Start accepts. Automaton has 149 states and 223 transitions. Word has length 181 [2023-12-23 23:37:52,763 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-23 23:37:52,763 INFO L495 AbstractCegarLoop]: Abstraction has 149 states and 223 transitions. [2023-12-23 23:37:52,763 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 13.0) internal successors, (39), 3 states have internal predecessors, (39), 1 states have call successors, (29), 1 states have call predecessors, (29), 1 states have return successors, (29), 1 states have call predecessors, (29), 1 states have call successors, (29) [2023-12-23 23:37:52,763 INFO L276 IsEmpty]: Start isEmpty. Operand 149 states and 223 transitions. [2023-12-23 23:37:52,764 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 182 [2023-12-23 23:37:52,765 INFO L187 NwaCegarLoop]: Found error trace [2023-12-23 23:37:52,765 INFO L195 NwaCegarLoop]: trace histogram [29, 29, 29, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-23 23:37:52,775 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (4)] Forceful destruction successful, exit code 0 [2023-12-23 23:37:52,975 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 4 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2023-12-23 23:37:52,976 INFO L420 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-23 23:37:52,976 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-23 23:37:52,976 INFO L85 PathProgramCache]: Analyzing trace with hash -2107940108, now seen corresponding path program 1 times [2023-12-23 23:37:52,977 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-12-23 23:37:52,977 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1896791077] [2023-12-23 23:37:52,977 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-23 23:37:52,977 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2023-12-23 23:37:52,977 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2023-12-23 23:37:52,978 INFO L229 MonitoredProcess]: Starting monitored process 5 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2023-12-23 23:37:52,982 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (5)] Waiting until timeout for monitored process [2023-12-23 23:37:53,400 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-23 23:37:53,416 INFO L262 TraceCheckSpWp]: Trace formula consists of 298 conjuncts, 14 conjunts are in the unsatisfiable core [2023-12-23 23:37:53,420 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-23 23:37:56,894 INFO L134 CoverageAnalysis]: Checked inductivity of 1624 backedges. 819 proven. 225 refuted. 0 times theorem prover too weak. 580 trivial. 0 not checked. [2023-12-23 23:37:56,894 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-12-23 23:37:57,784 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-12-23 23:37:57,784 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1896791077] [2023-12-23 23:37:57,784 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1896791077] provided 0 perfect and 1 imperfect interpolant sequences [2023-12-23 23:37:57,784 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleCvc4 [2138374942] [2023-12-23 23:37:57,784 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-23 23:37:57,784 INFO L173 SolverBuilder]: Constructing external solver with command: cvc4 --incremental --print-success --lang smt [2023-12-23 23:37:57,785 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/cvc4 [2023-12-23 23:37:57,829 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) [2023-12-23 23:37:57,833 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/cvc4 --incremental --print-success --lang smt (6)] Waiting until timeout for monitored process [2023-12-23 23:37:59,025 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-23 23:37:59,080 INFO L262 TraceCheckSpWp]: Trace formula consists of 298 conjuncts, 15 conjunts are in the unsatisfiable core [2023-12-23 23:37:59,084 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-23 23:38:01,887 INFO L134 CoverageAnalysis]: Checked inductivity of 1624 backedges. 819 proven. 225 refuted. 0 times theorem prover too weak. 580 trivial. 0 not checked. [2023-12-23 23:38:01,887 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-12-23 23:38:02,446 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleCvc4 [2138374942] provided 0 perfect and 1 imperfect interpolant sequences [2023-12-23 23:38:02,446 INFO L185 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2023-12-23 23:38:02,446 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [15, 15] total 15 [2023-12-23 23:38:02,446 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [507999149] [2023-12-23 23:38:02,446 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2023-12-23 23:38:02,447 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 15 states [2023-12-23 23:38:02,447 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-12-23 23:38:02,447 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 15 interpolants. [2023-12-23 23:38:02,447 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=73, Invalid=233, Unknown=0, NotChecked=0, Total=306 [2023-12-23 23:38:02,448 INFO L87 Difference]: Start difference. First operand 149 states and 223 transitions. Second operand has 15 states, 15 states have (on average 4.2) internal successors, (63), 15 states have internal predecessors, (63), 5 states have call successors, (29), 5 states have call predecessors, (29), 9 states have return successors, (29), 5 states have call predecessors, (29), 5 states have call successors, (29) [2023-12-23 23:38:09,320 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.13s for a HTC check with result UNKNOWN. Formula has sorts [Bool, FloatingPoint, RoundingMode, Real, BitVec], hasArrays=false, hasNonlinArith=false, quantifiers [0] [2023-12-23 23:38:13,326 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.00s for a HTC check with result UNKNOWN. Formula has sorts [Bool, FloatingPoint, RoundingMode, Real, BitVec], hasArrays=false, hasNonlinArith=false, quantifiers [0] [2023-12-23 23:38:17,333 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.01s for a HTC check with result UNKNOWN. Formula has sorts [Bool, FloatingPoint, RoundingMode, Real, BitVec], hasArrays=false, hasNonlinArith=false, quantifiers [0] [2023-12-23 23:38:21,336 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.00s for a HTC check with result UNKNOWN. Formula has sorts [Bool, FloatingPoint, RoundingMode, Real, BitVec], hasArrays=false, hasNonlinArith=false, quantifiers [0] [2023-12-23 23:38:22,251 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-23 23:38:22,251 INFO L93 Difference]: Finished difference Result 286 states and 396 transitions. [2023-12-23 23:38:22,316 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 23 states. [2023-12-23 23:38:22,316 INFO L78 Accepts]: Start accepts. Automaton has has 15 states, 15 states have (on average 4.2) internal successors, (63), 15 states have internal predecessors, (63), 5 states have call successors, (29), 5 states have call predecessors, (29), 9 states have return successors, (29), 5 states have call predecessors, (29), 5 states have call successors, (29) Word has length 181 [2023-12-23 23:38:22,317 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-23 23:38:22,318 INFO L225 Difference]: With dead ends: 286 [2023-12-23 23:38:22,318 INFO L226 Difference]: Without dead ends: 197 [2023-12-23 23:38:22,319 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 601 GetRequests, 575 SyntacticMatches, 0 SemanticMatches, 26 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 133 ImplicationChecksByTransitivity, 1.6s TimeCoverageRelationStatistics Valid=214, Invalid=542, Unknown=0, NotChecked=0, Total=756 [2023-12-23 23:38:22,319 INFO L413 NwaCegarLoop]: 70 mSDtfsCounter, 126 mSDsluCounter, 188 mSDsCounter, 0 mSdLazyCounter, 434 mSolverCounterSat, 32 mSolverCounterUnsat, 4 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 18.8s Time, 0 mProtectedPredicate, 0 mProtectedAction, 126 SdHoareTripleChecker+Valid, 258 SdHoareTripleChecker+Invalid, 470 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 32 IncrementalHoareTripleChecker+Valid, 434 IncrementalHoareTripleChecker+Invalid, 4 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 19.0s IncrementalHoareTripleChecker+Time [2023-12-23 23:38:22,320 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [126 Valid, 258 Invalid, 470 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [32 Valid, 434 Invalid, 4 Unknown, 0 Unchecked, 19.0s Time] [2023-12-23 23:38:22,320 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 197 states. [2023-12-23 23:38:22,344 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 197 to 181. [2023-12-23 23:38:22,345 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 181 states, 110 states have (on average 1.1727272727272726) internal successors, (129), 110 states have internal predecessors, (129), 58 states have call successors, (58), 12 states have call predecessors, (58), 12 states have return successors, (58), 58 states have call predecessors, (58), 58 states have call successors, (58) [2023-12-23 23:38:22,345 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 181 states to 181 states and 245 transitions. [2023-12-23 23:38:22,346 INFO L78 Accepts]: Start accepts. Automaton has 181 states and 245 transitions. Word has length 181 [2023-12-23 23:38:22,346 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-23 23:38:22,346 INFO L495 AbstractCegarLoop]: Abstraction has 181 states and 245 transitions. [2023-12-23 23:38:22,346 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 15 states, 15 states have (on average 4.2) internal successors, (63), 15 states have internal predecessors, (63), 5 states have call successors, (29), 5 states have call predecessors, (29), 9 states have return successors, (29), 5 states have call predecessors, (29), 5 states have call successors, (29) [2023-12-23 23:38:22,346 INFO L276 IsEmpty]: Start isEmpty. Operand 181 states and 245 transitions. [2023-12-23 23:38:22,347 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 182 [2023-12-23 23:38:22,348 INFO L187 NwaCegarLoop]: Found error trace [2023-12-23 23:38:22,348 INFO L195 NwaCegarLoop]: trace histogram [29, 29, 29, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-23 23:38:22,360 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (5)] Forceful destruction successful, exit code 0 [2023-12-23 23:38:22,564 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/cvc4 --incremental --print-success --lang smt (6)] Forceful destruction successful, exit code 0 [2023-12-23 23:38:22,756 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 [2023-12-23 23:38:22,756 INFO L420 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-23 23:38:22,757 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-23 23:38:22,757 INFO L85 PathProgramCache]: Analyzing trace with hash 1175909938, now seen corresponding path program 1 times [2023-12-23 23:38:22,757 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-12-23 23:38:22,757 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [555648519] [2023-12-23 23:38:22,758 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-23 23:38:22,758 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2023-12-23 23:38:22,758 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2023-12-23 23:38:22,759 INFO L229 MonitoredProcess]: Starting monitored process 7 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2023-12-23 23:38:22,760 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (7)] Waiting until timeout for monitored process [2023-12-23 23:38:23,182 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-23 23:38:23,199 INFO L262 TraceCheckSpWp]: Trace formula consists of 298 conjuncts, 57 conjunts are in the unsatisfiable core [2023-12-23 23:38:23,205 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-23 23:39:03,092 WARN L293 SmtUtils]: Spent 5.85s on a formula simplification that was a NOOP. DAG size: 57 (called from [L 391] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate) [2023-12-23 23:39:30,401 WARN L293 SmtUtils]: Spent 7.07s on a formula simplification that was a NOOP. DAG size: 60 (called from [L 391] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate) [2023-12-23 23:39:56,429 WARN L293 SmtUtils]: Spent 8.19s on a formula simplification that was a NOOP. DAG size: 70 (called from [L 391] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate) [2023-12-23 23:40:35,332 WARN L293 SmtUtils]: Spent 13.59s on a formula simplification that was a NOOP. DAG size: 78 (called from [L 391] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate) [2023-12-23 23:41:42,624 WARN L293 SmtUtils]: Spent 20.44s on a formula simplification that was a NOOP. DAG size: 81 (called from [L 391] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate) [2023-12-23 23:43:34,209 WARN L293 SmtUtils]: Spent 39.96s on a formula simplification that was a NOOP. DAG size: 93 (called from [L 391] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate) [2023-12-23 23:45:41,790 WARN L293 SmtUtils]: Spent 41.31s on a formula simplification that was a NOOP. DAG size: 112 (called from [L 391] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate) [2023-12-23 23:47:56,651 WARN L293 SmtUtils]: Spent 41.85s on a formula simplification that was a NOOP. DAG size: 119 (called from [L 391] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate) [2023-12-23 23:50:24,574 WARN L293 SmtUtils]: Spent 45.75s on a formula simplification that was a NOOP. DAG size: 121 (called from [L 391] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate) Received shutdown request... [2023-12-23 23:51:48,983 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 (7)] Timeout while monitored process is still running, waiting 1000 ms for graceful end [2023-12-23 23:51:48,992 WARN L340 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (1)] Timeout while monitored process is still running, waiting 1000 ms for graceful end [2023-12-23 23:51:50,010 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (7)] Forceful destruction successful, exit code 0 [2023-12-23 23:51:50,193 WARN L435 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (1)] Forcibly destroying the process [2023-12-23 23:51:50,242 INFO L805 garLoopResultBuilder]: Registering result TIMEOUT for location ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION (0 of 1 remaining) [2023-12-23 23:51:50,242 WARN L619 AbstractCegarLoop]: Verification canceled: while NwaCegarLoop was analyzing trace of length 182 with TraceHistMax 29,while TraceCheckSpWp was constructing forward predicates,while executing Executor. [2023-12-23 23:51:50,245 INFO L445 BasicCegarLoop]: Path program histogram: [1, 1, 1, 1, 1] [2023-12-23 23:51:50,247 INFO L179 ceAbstractionStarter]: Computing trace abstraction results [2023-12-23 23:51:50,255 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (1)] Forceful destruction successful, exit code 137 [2023-12-23 23:51:50,259 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 23.12 11:51:50 BoogieIcfgContainer [2023-12-23 23:51:50,259 INFO L131 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2023-12-23 23:51:50,259 INFO L158 Benchmark]: Toolchain (without parser) took 885863.89ms. Allocated memory is still 288.4MB. Free memory was 234.5MB in the beginning and 89.2MB in the end (delta: 145.3MB). Peak memory consumption was 146.2MB. Max. memory is 8.0GB. [2023-12-23 23:51:50,259 INFO L158 Benchmark]: CDTParser took 0.13ms. Allocated memory is still 192.9MB. Free memory is still 142.3MB. There was no memory consumed. Max. memory is 8.0GB. [2023-12-23 23:51:50,260 INFO L158 Benchmark]: CACSL2BoogieTranslator took 263.88ms. Allocated memory is still 288.4MB. Free memory was 234.0MB in the beginning and 217.2MB in the end (delta: 16.8MB). Peak memory consumption was 16.8MB. Max. memory is 8.0GB. [2023-12-23 23:51:50,260 INFO L158 Benchmark]: Boogie Procedure Inliner took 49.05ms. Allocated memory is still 288.4MB. Free memory was 217.1MB in the beginning and 214.1MB in the end (delta: 3.0MB). Peak memory consumption was 3.1MB. Max. memory is 8.0GB. [2023-12-23 23:51:50,261 INFO L158 Benchmark]: Boogie Preprocessor took 43.38ms. Allocated memory is still 288.4MB. Free memory was 214.1MB in the beginning and 209.3MB in the end (delta: 4.8MB). Peak memory consumption was 5.2MB. Max. memory is 8.0GB. [2023-12-23 23:51:50,268 INFO L158 Benchmark]: RCFGBuilder took 7346.45ms. Allocated memory is still 288.4MB. Free memory was 209.3MB in the beginning and 179.9MB in the end (delta: 29.4MB). Peak memory consumption was 29.4MB. Max. memory is 8.0GB. [2023-12-23 23:51:50,269 INFO L158 Benchmark]: TraceAbstraction took 878156.63ms. Allocated memory is still 288.4MB. Free memory was 178.9MB in the beginning and 89.2MB in the end (delta: 89.7MB). Peak memory consumption was 90.6MB. Max. memory is 8.0GB. [2023-12-23 23:51:50,270 INFO L338 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.13ms. Allocated memory is still 192.9MB. Free memory is still 142.3MB. There was no memory consumed. Max. memory is 8.0GB. * CACSL2BoogieTranslator took 263.88ms. Allocated memory is still 288.4MB. Free memory was 234.0MB in the beginning and 217.2MB in the end (delta: 16.8MB). Peak memory consumption was 16.8MB. Max. memory is 8.0GB. * Boogie Procedure Inliner took 49.05ms. Allocated memory is still 288.4MB. Free memory was 217.1MB in the beginning and 214.1MB in the end (delta: 3.0MB). Peak memory consumption was 3.1MB. Max. memory is 8.0GB. * Boogie Preprocessor took 43.38ms. Allocated memory is still 288.4MB. Free memory was 214.1MB in the beginning and 209.3MB in the end (delta: 4.8MB). Peak memory consumption was 5.2MB. Max. memory is 8.0GB. * RCFGBuilder took 7346.45ms. Allocated memory is still 288.4MB. Free memory was 209.3MB in the beginning and 179.9MB in the end (delta: 29.4MB). Peak memory consumption was 29.4MB. Max. memory is 8.0GB. * TraceAbstraction took 878156.63ms. Allocated memory is still 288.4MB. Free memory was 178.9MB in the beginning and 89.2MB in the end (delta: 89.7MB). Peak memory consumption was 90.6MB. 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 182 with TraceHistMax 29,while TraceCheckSpWp was constructing forward predicates,while executing Executor. - StatisticsResult: Ultimate Automizer benchmark data CFG has 2 procedures, 77 locations, 1 error locations. Started 1 CEGAR loops. OverallTime: 878.1s, OverallIterations: 5, TraceHistogramMax: 29, PathProgramHistogramMax: 1, EmptinessCheckTime: 0.0s, AutomataDifference: 50.4s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 9 mSolverCounterUnknown, 438 SdHoareTripleChecker+Valid, 49.1s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 438 mSDsluCounter, 1048 SdHoareTripleChecker+Invalid, 48.7s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 566 mSDsCounter, 95 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 478 IncrementalHoareTripleChecker+Invalid, 582 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 95 mSolverCounterUnsat, 482 mSDtfsCounter, 478 mSolverCounterSat, 0.0s SdHoareTripleChecker+Time, 9 IncrementalHoareTripleChecker+Unknown, PredicateUnifierStatistics: 0 DeclaredPredicates, 1324 GetRequests, 1286 SyntacticMatches, 0 SemanticMatches, 38 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 141 ImplicationChecksByTransitivity, 3.3s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=181occurred in iteration=4, InterpolantAutomatonStates: 35, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: 0.1s AutomataMinimizationTime, 4 MinimizatonAttempts, 99 StatesRemovedByMinimization, 2 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.1s SsaConstructionTime, 2.5s SatisfiabilityAnalysisTime, 16.1s InterpolantComputationTime, 905 NumberOfCodeBlocks, 905 NumberOfCodeBlocksAsserted, 5 NumberOfCheckSat, 1080 ConstructedInterpolants, 7 QuantifiedInterpolants, 8373 SizeOfPredicates, 27 NumberOfNonLiveVariables, 1489 ConjunctsInSsa, 40 ConjunctsInUnsatCore, 6 InterpolantComputations, 3 PerfectInterpolantSequences, 9246/9744 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