/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-27.i -------------------------------------------------------------------------------- This is Ultimate 0.2.4-tmp.fs.bitabs-eval-d9c3e40-m [2023-12-16 12:18:35,632 INFO L188 SettingsManager]: Resetting all preferences to default values... [2023-12-16 12:18:35,704 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 12:18:35,706 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2023-12-16 12:18:35,707 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2023-12-16 12:18:35,731 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2023-12-16 12:18:35,731 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2023-12-16 12:18:35,732 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2023-12-16 12:18:35,732 INFO L151 SettingsManager]: Preferences of Boogie Preprocessor differ from their defaults: [2023-12-16 12:18:35,735 INFO L153 SettingsManager]: * Use memory slicer=true [2023-12-16 12:18:35,735 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2023-12-16 12:18:35,735 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2023-12-16 12:18:35,735 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2023-12-16 12:18:35,736 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2023-12-16 12:18:35,736 INFO L153 SettingsManager]: * Use SBE=true [2023-12-16 12:18:35,737 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2023-12-16 12:18:35,737 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2023-12-16 12:18:35,737 INFO L153 SettingsManager]: * sizeof long=4 [2023-12-16 12:18:35,738 INFO L153 SettingsManager]: * sizeof POINTER=4 [2023-12-16 12:18:35,738 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2023-12-16 12:18:35,738 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2023-12-16 12:18:35,738 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2023-12-16 12:18:35,739 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2023-12-16 12:18:35,739 INFO L153 SettingsManager]: * Adapt memory model on pointer casts if necessary=true [2023-12-16 12:18:35,739 INFO L153 SettingsManager]: * Use bitvectors instead of ints=true [2023-12-16 12:18:35,739 INFO L153 SettingsManager]: * Allow undefined functions=false [2023-12-16 12:18:35,739 INFO L153 SettingsManager]: * Memory model=HoenickeLindenmann_4ByteResolution [2023-12-16 12:18:35,739 INFO L153 SettingsManager]: * sizeof long double=12 [2023-12-16 12:18:35,739 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2023-12-16 12:18:35,740 INFO L153 SettingsManager]: * Use constant arrays=true [2023-12-16 12:18:35,740 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2023-12-16 12:18:35,740 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2023-12-16 12:18:35,740 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2023-12-16 12:18:35,741 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2023-12-16 12:18:35,741 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2023-12-16 12:18:35,741 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2023-12-16 12:18:35,741 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2023-12-16 12:18:35,741 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2023-12-16 12:18:35,741 INFO L153 SettingsManager]: * Trace refinement strategy=WOLF [2023-12-16 12:18:35,741 INFO L153 SettingsManager]: * Command for external solver=cvc4 --incremental --print-success --lang smt [2023-12-16 12:18:35,741 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2023-12-16 12:18:35,742 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2023-12-16 12:18:35,742 INFO L153 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2023-12-16 12:18:35,742 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2023-12-16 12:18:35,742 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2023-12-16 12:18:35,742 INFO L153 SettingsManager]: * Logic for external solver=AUFBV [2023-12-16 12:18:35,743 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release [2023-12-16 12:18:35,928 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2023-12-16 12:18:35,953 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2023-12-16 12:18:35,955 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2023-12-16 12:18:35,956 INFO L270 PluginConnector]: Initializing CDTParser... [2023-12-16 12:18:35,956 INFO L274 PluginConnector]: CDTParser initialized [2023-12-16 12:18:35,957 INFO L431 ainManager$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-27.i [2023-12-16 12:18:37,189 INFO L533 CDTParser]: Created temporary CDT project at NULL [2023-12-16 12:18:37,428 INFO L384 CDTParser]: Found 1 translation units. [2023-12-16 12:18:37,428 INFO L180 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/hardness-nfm22/hardness_fillercode_fillercodestructure_filler-pr-cn_file-27.i [2023-12-16 12:18:37,438 INFO L427 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/c4c61e066/1a18a58001394a73916ae4c4685d0511/FLAGc07db1ba2 [2023-12-16 12:18:37,447 INFO L435 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/c4c61e066/1a18a58001394a73916ae4c4685d0511 [2023-12-16 12:18:37,449 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2023-12-16 12:18:37,450 INFO L133 ToolchainWalker]: Walking toolchain with 5 elements. [2023-12-16 12:18:37,451 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2023-12-16 12:18:37,451 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2023-12-16 12:18:37,454 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2023-12-16 12:18:37,455 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 16.12 12:18:37" (1/1) ... [2023-12-16 12:18:37,455 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@57a08168 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.12 12:18:37, skipping insertion in model container [2023-12-16 12:18:37,455 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 16.12 12:18:37" (1/1) ... [2023-12-16 12:18:37,492 INFO L177 MainTranslator]: Built tables and reachable declarations [2023-12-16 12:18:37,593 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-27.i[919,932] [2023-12-16 12:18:37,668 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-12-16 12:18:37,679 INFO L202 MainTranslator]: Completed pre-run [2023-12-16 12:18:37,697 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-27.i[919,932] [2023-12-16 12:18:37,734 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-12-16 12:18:37,749 INFO L206 MainTranslator]: Completed translation [2023-12-16 12:18:37,750 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.12 12:18:37 WrapperNode [2023-12-16 12:18:37,750 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2023-12-16 12:18:37,750 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2023-12-16 12:18:37,751 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2023-12-16 12:18:37,751 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2023-12-16 12:18:37,756 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.12 12:18:37" (1/1) ... [2023-12-16 12:18:37,768 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.12 12:18:37" (1/1) ... [2023-12-16 12:18:37,795 INFO L138 Inliner]: procedures = 27, calls = 66, calls flagged for inlining = 8, calls inlined = 8, statements flattened = 266 [2023-12-16 12:18:37,795 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2023-12-16 12:18:37,796 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2023-12-16 12:18:37,796 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2023-12-16 12:18:37,796 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2023-12-16 12:18:37,804 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.12 12:18:37" (1/1) ... [2023-12-16 12:18:37,805 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.12 12:18:37" (1/1) ... [2023-12-16 12:18:37,809 INFO L184 PluginConnector]: Executing the observer MemorySlicer from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.12 12:18:37" (1/1) ... [2023-12-16 12:18:37,820 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 12:18:37,820 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.12 12:18:37" (1/1) ... [2023-12-16 12:18:37,820 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.12 12:18:37" (1/1) ... [2023-12-16 12:18:37,837 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.12 12:18:37" (1/1) ... [2023-12-16 12:18:37,840 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.12 12:18:37" (1/1) ... [2023-12-16 12:18:37,842 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.12 12:18:37" (1/1) ... [2023-12-16 12:18:37,843 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.12 12:18:37" (1/1) ... [2023-12-16 12:18:37,847 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2023-12-16 12:18:37,847 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2023-12-16 12:18:37,848 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2023-12-16 12:18:37,848 INFO L274 PluginConnector]: RCFGBuilder initialized [2023-12-16 12:18:37,864 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.12 12:18:37" (1/1) ... [2023-12-16 12:18:37,868 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2023-12-16 12:18:37,877 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-12-16 12:18:37,901 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 12:18:37,949 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 12:18:37,952 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2023-12-16 12:18:37,953 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE1#0 [2023-12-16 12:18:37,953 INFO L130 BoogieDeclarations]: Found specification of procedure assume_abort_if_not [2023-12-16 12:18:37,954 INFO L138 BoogieDeclarations]: Found implementation of procedure assume_abort_if_not [2023-12-16 12:18:37,954 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2023-12-16 12:18:37,954 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2023-12-16 12:18:38,032 INFO L241 CfgBuilder]: Building ICFG [2023-12-16 12:18:38,033 INFO L267 CfgBuilder]: Building CFG for each procedure with an implementation [2023-12-16 12:18:44,177 INFO L282 CfgBuilder]: Performing block encoding [2023-12-16 12:18:44,236 INFO L304 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2023-12-16 12:18:44,237 INFO L309 CfgBuilder]: Removed 1 assume(true) statements. [2023-12-16 12:18:44,237 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 16.12 12:18:44 BoogieIcfgContainer [2023-12-16 12:18:44,237 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2023-12-16 12:18:44,239 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2023-12-16 12:18:44,239 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2023-12-16 12:18:44,241 INFO L274 PluginConnector]: TraceAbstraction initialized [2023-12-16 12:18:44,242 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 16.12 12:18:37" (1/3) ... [2023-12-16 12:18:44,242 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@61c3ee14 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 16.12 12:18:44, skipping insertion in model container [2023-12-16 12:18:44,242 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.12 12:18:37" (2/3) ... [2023-12-16 12:18:44,242 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@61c3ee14 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 16.12 12:18:44, skipping insertion in model container [2023-12-16 12:18:44,243 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 16.12 12:18:44" (3/3) ... [2023-12-16 12:18:44,243 INFO L112 eAbstractionObserver]: Analyzing ICFG hardness_fillercode_fillercodestructure_filler-pr-cn_file-27.i [2023-12-16 12:18:44,256 INFO L204 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2023-12-16 12:18:44,257 INFO L163 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2023-12-16 12:18:44,303 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2023-12-16 12:18:44,309 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;@2d9a67b0, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2023-12-16 12:18:44,309 INFO L358 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2023-12-16 12:18:44,313 INFO L276 IsEmpty]: Start isEmpty. Operand has 119 states, 63 states have (on average 1.3968253968253967) internal successors, (88), 64 states have internal predecessors, (88), 53 states have call successors, (53), 1 states have call predecessors, (53), 1 states have return successors, (53), 53 states have call predecessors, (53), 53 states have call successors, (53) [2023-12-16 12:18:44,331 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 315 [2023-12-16 12:18:44,331 INFO L187 NwaCegarLoop]: Found error trace [2023-12-16 12:18:44,332 INFO L195 NwaCegarLoop]: trace histogram [53, 53, 53, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 12:18:44,333 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-16 12:18:44,336 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-16 12:18:44,336 INFO L85 PathProgramCache]: Analyzing trace with hash -1752239346, now seen corresponding path program 1 times [2023-12-16 12:18:44,348 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-12-16 12:18:44,349 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [214015394] [2023-12-16 12:18:44,349 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-16 12:18:44,349 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 12:18:44,349 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2023-12-16 12:18:44,351 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 12:18:44,397 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 12:18:44,878 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 12:18:44,903 INFO L262 TraceCheckSpWp]: Trace formula consists of 492 conjuncts, 1 conjunts are in the unsatisfiable core [2023-12-16 12:18:44,915 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-16 12:18:44,963 INFO L134 CoverageAnalysis]: Checked inductivity of 5512 backedges. 1208 proven. 0 refuted. 0 times theorem prover too weak. 4304 trivial. 0 not checked. [2023-12-16 12:18:44,963 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-12-16 12:18:44,963 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-12-16 12:18:44,964 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [214015394] [2023-12-16 12:18:44,964 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [214015394] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-16 12:18:44,964 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-16 12:18:44,964 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2023-12-16 12:18:44,965 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1162542748] [2023-12-16 12:18:44,966 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-16 12:18:44,972 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2023-12-16 12:18:44,972 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-12-16 12:18:44,991 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2023-12-16 12:18:44,992 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2023-12-16 12:18:44,994 INFO L87 Difference]: Start difference. First operand has 119 states, 63 states have (on average 1.3968253968253967) internal successors, (88), 64 states have internal predecessors, (88), 53 states have call successors, (53), 1 states have call predecessors, (53), 1 states have return successors, (53), 53 states have call predecessors, (53), 53 states have call successors, (53) Second operand has 2 states, 2 states have (on average 28.0) internal successors, (56), 2 states have internal predecessors, (56), 2 states have call successors, (53), 2 states have call predecessors, (53), 2 states have return successors, (53), 2 states have call predecessors, (53), 2 states have call successors, (53) [2023-12-16 12:18:49,164 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.11s for a HTC check with result UNKNOWN. Formula has sorts [Bool, FloatingPoint, RoundingMode, Real, BitVec], hasArrays=false, hasNonlinArith=false, quantifiers [] [2023-12-16 12:18:49,165 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-16 12:18:49,165 INFO L93 Difference]: Finished difference Result 233 states and 435 transitions. [2023-12-16 12:18:49,215 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2023-12-16 12:18:49,217 INFO L78 Accepts]: Start accepts. Automaton has has 2 states, 2 states have (on average 28.0) internal successors, (56), 2 states have internal predecessors, (56), 2 states have call successors, (53), 2 states have call predecessors, (53), 2 states have return successors, (53), 2 states have call predecessors, (53), 2 states have call successors, (53) Word has length 314 [2023-12-16 12:18:49,217 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-16 12:18:49,223 INFO L225 Difference]: With dead ends: 233 [2023-12-16 12:18:49,223 INFO L226 Difference]: Without dead ends: 115 [2023-12-16 12:18:49,226 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 313 GetRequests, 313 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 12:18:49,228 INFO L413 NwaCegarLoop]: 180 mSDtfsCounter, 0 mSDsluCounter, 0 mSDsCounter, 0 mSdLazyCounter, 2 mSolverCounterSat, 0 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 4.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 180 SdHoareTripleChecker+Invalid, 3 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 2 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 4.1s IncrementalHoareTripleChecker+Time [2023-12-16 12:18:49,229 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 180 Invalid, 3 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 2 Invalid, 1 Unknown, 0 Unchecked, 4.1s Time] [2023-12-16 12:18:49,239 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 115 states. [2023-12-16 12:18:49,263 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 115 to 115. [2023-12-16 12:18:49,264 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 115 states, 60 states have (on average 1.2833333333333334) internal successors, (77), 60 states have internal predecessors, (77), 53 states have call successors, (53), 1 states have call predecessors, (53), 1 states have return successors, (53), 53 states have call predecessors, (53), 53 states have call successors, (53) [2023-12-16 12:18:49,266 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 115 states to 115 states and 183 transitions. [2023-12-16 12:18:49,267 INFO L78 Accepts]: Start accepts. Automaton has 115 states and 183 transitions. Word has length 314 [2023-12-16 12:18:49,267 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-16 12:18:49,268 INFO L495 AbstractCegarLoop]: Abstraction has 115 states and 183 transitions. [2023-12-16 12:18:49,268 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 2 states, 2 states have (on average 28.0) internal successors, (56), 2 states have internal predecessors, (56), 2 states have call successors, (53), 2 states have call predecessors, (53), 2 states have return successors, (53), 2 states have call predecessors, (53), 2 states have call successors, (53) [2023-12-16 12:18:49,268 INFO L276 IsEmpty]: Start isEmpty. Operand 115 states and 183 transitions. [2023-12-16 12:18:49,272 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 315 [2023-12-16 12:18:49,273 INFO L187 NwaCegarLoop]: Found error trace [2023-12-16 12:18:49,273 INFO L195 NwaCegarLoop]: trace histogram [53, 53, 53, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 12:18:49,295 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (2)] Ended with exit code 0 [2023-12-16 12:18:49,487 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 12:18:49,487 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-16 12:18:49,488 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-16 12:18:49,488 INFO L85 PathProgramCache]: Analyzing trace with hash -956546100, now seen corresponding path program 1 times [2023-12-16 12:18:49,489 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-12-16 12:18:49,489 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [906987486] [2023-12-16 12:18:49,489 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-16 12:18:49,489 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 12:18:49,489 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2023-12-16 12:18:49,490 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 12:18:49,492 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 12:18:50,030 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 12:18:50,054 INFO L262 TraceCheckSpWp]: Trace formula consists of 492 conjuncts, 6 conjunts are in the unsatisfiable core [2023-12-16 12:18:50,069 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-16 12:18:51,464 INFO L134 CoverageAnalysis]: Checked inductivity of 5512 backedges. 1618 proven. 129 refuted. 0 times theorem prover too weak. 3765 trivial. 0 not checked. [2023-12-16 12:18:51,465 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-12-16 12:18:51,702 INFO L134 CoverageAnalysis]: Checked inductivity of 5512 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 5512 trivial. 0 not checked. [2023-12-16 12:18:51,702 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-12-16 12:18:51,703 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [906987486] [2023-12-16 12:18:51,703 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [906987486] provided 1 perfect and 1 imperfect interpolant sequences [2023-12-16 12:18:51,703 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2023-12-16 12:18:51,703 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [7] total 8 [2023-12-16 12:18:51,703 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [910642698] [2023-12-16 12:18:51,703 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-16 12:18:51,705 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-12-16 12:18:51,705 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-12-16 12:18:51,705 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-12-16 12:18:51,706 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=17, Invalid=39, Unknown=0, NotChecked=0, Total=56 [2023-12-16 12:18:51,706 INFO L87 Difference]: Start difference. First operand 115 states and 183 transitions. Second operand has 3 states, 3 states have (on average 17.333333333333332) internal successors, (52), 3 states have internal predecessors, (52), 1 states have call successors, (53), 1 states have call predecessors, (53), 1 states have return successors, (53), 1 states have call predecessors, (53), 1 states have call successors, (53) [2023-12-16 12:18:53,597 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.86s for a HTC check with result INVALID. Formula has sorts [Bool, FloatingPoint, RoundingMode, BitVec], hasArrays=false, hasNonlinArith=false, quantifiers [] [2023-12-16 12:18:57,794 WARN L539 Checker$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 [] [2023-12-16 12:18:57,797 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-16 12:18:57,798 INFO L93 Difference]: Finished difference Result 233 states and 368 transitions. [2023-12-16 12:18:57,850 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-12-16 12:18:57,851 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 17.333333333333332) internal successors, (52), 3 states have internal predecessors, (52), 1 states have call successors, (53), 1 states have call predecessors, (53), 1 states have return successors, (53), 1 states have call predecessors, (53), 1 states have call successors, (53) Word has length 314 [2023-12-16 12:18:57,852 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-16 12:18:57,853 INFO L225 Difference]: With dead ends: 233 [2023-12-16 12:18:57,854 INFO L226 Difference]: Without dead ends: 119 [2023-12-16 12:18:57,855 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 626 GetRequests, 620 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=17, Invalid=39, Unknown=0, NotChecked=0, Total=56 [2023-12-16 12:18:57,855 INFO L413 NwaCegarLoop]: 174 mSDtfsCounter, 59 mSDsluCounter, 119 mSDsCounter, 0 mSdLazyCounter, 12 mSolverCounterSat, 1 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 6.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 59 SdHoareTripleChecker+Valid, 293 SdHoareTripleChecker+Invalid, 14 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 12 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 6.1s IncrementalHoareTripleChecker+Time [2023-12-16 12:18:57,856 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [59 Valid, 293 Invalid, 14 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 12 Invalid, 1 Unknown, 0 Unchecked, 6.1s Time] [2023-12-16 12:18:57,856 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 119 states. [2023-12-16 12:18:57,879 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 119 to 119. [2023-12-16 12:18:57,880 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 119 states, 63 states have (on average 1.253968253968254) internal successors, (79), 63 states have internal predecessors, (79), 53 states have call successors, (53), 2 states have call predecessors, (53), 2 states have return successors, (53), 53 states have call predecessors, (53), 53 states have call successors, (53) [2023-12-16 12:18:57,881 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 119 states to 119 states and 185 transitions. [2023-12-16 12:18:57,881 INFO L78 Accepts]: Start accepts. Automaton has 119 states and 185 transitions. Word has length 314 [2023-12-16 12:18:57,882 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-16 12:18:57,882 INFO L495 AbstractCegarLoop]: Abstraction has 119 states and 185 transitions. [2023-12-16 12:18:57,882 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 17.333333333333332) internal successors, (52), 3 states have internal predecessors, (52), 1 states have call successors, (53), 1 states have call predecessors, (53), 1 states have return successors, (53), 1 states have call predecessors, (53), 1 states have call successors, (53) [2023-12-16 12:18:57,883 INFO L276 IsEmpty]: Start isEmpty. Operand 119 states and 185 transitions. [2023-12-16 12:18:57,890 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 316 [2023-12-16 12:18:57,890 INFO L187 NwaCegarLoop]: Found error trace [2023-12-16 12:18:57,891 INFO L195 NwaCegarLoop]: trace histogram [53, 53, 53, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 12:18:57,907 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 12:18:58,107 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 [2023-12-16 12:18:58,108 INFO L420 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-16 12:18:58,108 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-16 12:18:58,108 INFO L85 PathProgramCache]: Analyzing trace with hash -1161064752, now seen corresponding path program 1 times [2023-12-16 12:18:58,110 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-12-16 12:18:58,110 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [2127894092] [2023-12-16 12:18:58,110 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-16 12:18:58,111 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 12:18:58,111 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2023-12-16 12:18:58,112 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) [2023-12-16 12:18:58,113 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 [2023-12-16 12:18:58,615 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 12:18:58,637 INFO L262 TraceCheckSpWp]: Trace formula consists of 494 conjuncts, 2 conjunts are in the unsatisfiable core [2023-12-16 12:18:58,643 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-16 12:19:00,067 INFO L134 CoverageAnalysis]: Checked inductivity of 5512 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 5512 trivial. 0 not checked. [2023-12-16 12:19:00,067 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-12-16 12:19:00,067 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-12-16 12:19:00,067 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [2127894092] [2023-12-16 12:19:00,068 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [2127894092] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-16 12:19:00,068 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-16 12:19:00,068 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2023-12-16 12:19:00,068 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [226816865] [2023-12-16 12:19:00,068 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-16 12:19:00,069 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-12-16 12:19:00,069 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-12-16 12:19:00,069 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-12-16 12:19:00,069 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-12-16 12:19:00,070 INFO L87 Difference]: Start difference. First operand 119 states and 185 transitions. Second operand has 3 states, 3 states have (on average 17.666666666666668) internal successors, (53), 2 states have internal predecessors, (53), 1 states have call successors, (53), 1 states have call predecessors, (53), 1 states have return successors, (53), 1 states have call predecessors, (53), 1 states have call successors, (53) [2023-12-16 12:19:04,368 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 [] [2023-12-16 12:19:04,589 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-16 12:19:04,589 INFO L93 Difference]: Finished difference Result 355 states and 553 transitions. [2023-12-16 12:19:04,595 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-12-16 12:19:04,596 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 17.666666666666668) internal successors, (53), 2 states have internal predecessors, (53), 1 states have call successors, (53), 1 states have call predecessors, (53), 1 states have return successors, (53), 1 states have call predecessors, (53), 1 states have call successors, (53) Word has length 315 [2023-12-16 12:19:04,597 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-16 12:19:04,599 INFO L225 Difference]: With dead ends: 355 [2023-12-16 12:19:04,599 INFO L226 Difference]: Without dead ends: 237 [2023-12-16 12:19:04,600 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 314 GetRequests, 313 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-12-16 12:19:04,600 INFO L413 NwaCegarLoop]: 191 mSDtfsCounter, 27 mSDsluCounter, 171 mSDsCounter, 0 mSdLazyCounter, 16 mSolverCounterSat, 1 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 4.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 27 SdHoareTripleChecker+Valid, 362 SdHoareTripleChecker+Invalid, 18 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 16 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 4.5s IncrementalHoareTripleChecker+Time [2023-12-16 12:19:04,601 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [27 Valid, 362 Invalid, 18 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 16 Invalid, 1 Unknown, 0 Unchecked, 4.5s Time] [2023-12-16 12:19:04,601 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 237 states. [2023-12-16 12:19:04,648 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 237 to 233. [2023-12-16 12:19:04,648 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 233 states, 122 states have (on average 1.2295081967213115) internal successors, (150), 122 states have internal predecessors, (150), 106 states have call successors, (106), 4 states have call predecessors, (106), 4 states have return successors, (106), 106 states have call predecessors, (106), 106 states have call successors, (106) [2023-12-16 12:19:04,650 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 233 states to 233 states and 362 transitions. [2023-12-16 12:19:04,650 INFO L78 Accepts]: Start accepts. Automaton has 233 states and 362 transitions. Word has length 315 [2023-12-16 12:19:04,651 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-16 12:19:04,651 INFO L495 AbstractCegarLoop]: Abstraction has 233 states and 362 transitions. [2023-12-16 12:19:04,651 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 17.666666666666668) internal successors, (53), 2 states have internal predecessors, (53), 1 states have call successors, (53), 1 states have call predecessors, (53), 1 states have return successors, (53), 1 states have call predecessors, (53), 1 states have call successors, (53) [2023-12-16 12:19:04,651 INFO L276 IsEmpty]: Start isEmpty. Operand 233 states and 362 transitions. [2023-12-16 12:19:04,653 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 317 [2023-12-16 12:19:04,653 INFO L187 NwaCegarLoop]: Found error trace [2023-12-16 12:19:04,653 INFO L195 NwaCegarLoop]: trace histogram [53, 53, 53, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 12:19:04,680 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 [2023-12-16 12:19:04,880 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 [2023-12-16 12:19:04,881 INFO L420 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-16 12:19:04,881 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-16 12:19:04,881 INFO L85 PathProgramCache]: Analyzing trace with hash 1952381383, now seen corresponding path program 1 times [2023-12-16 12:19:04,882 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-12-16 12:19:04,882 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [489145126] [2023-12-16 12:19:04,882 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-16 12:19:04,882 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 12:19:04,882 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2023-12-16 12:19:04,901 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 12:19:04,907 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 12:19:05,412 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 12:19:05,433 INFO L262 TraceCheckSpWp]: Trace formula consists of 496 conjuncts, 11 conjunts are in the unsatisfiable core [2023-12-16 12:19:05,438 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-16 12:19:07,983 INFO L134 CoverageAnalysis]: Checked inductivity of 5512 backedges. 2381 proven. 333 refuted. 0 times theorem prover too weak. 2798 trivial. 0 not checked. [2023-12-16 12:19:07,983 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-12-16 12:19:09,149 INFO L134 CoverageAnalysis]: Checked inductivity of 5512 backedges. 117 proven. 342 refuted. 0 times theorem prover too weak. 5053 trivial. 0 not checked. [2023-12-16 12:19:09,149 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-12-16 12:19:09,149 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [489145126] [2023-12-16 12:19:09,149 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [489145126] provided 0 perfect and 2 imperfect interpolant sequences [2023-12-16 12:19:09,150 INFO L185 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2023-12-16 12:19:09,150 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [12, 12] total 19 [2023-12-16 12:19:09,150 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [118081648] [2023-12-16 12:19:09,150 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2023-12-16 12:19:09,151 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 19 states [2023-12-16 12:19:09,151 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-12-16 12:19:09,152 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 19 interpolants. [2023-12-16 12:19:09,152 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=96, Invalid=246, Unknown=0, NotChecked=0, Total=342 [2023-12-16 12:19:09,152 INFO L87 Difference]: Start difference. First operand 233 states and 362 transitions. Second operand has 19 states, 19 states have (on average 4.421052631578948) internal successors, (84), 19 states have internal predecessors, (84), 4 states have call successors, (93), 4 states have call predecessors, (93), 10 states have return successors, (94), 4 states have call predecessors, (94), 4 states have call successors, (94) [2023-12-16 12:19:13,748 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 3.03s for a HTC check with result INVALID. Formula has sorts [Bool, FloatingPoint, RoundingMode, Real, BitVec], hasArrays=false, hasNonlinArith=false, quantifiers [] [2023-12-16 12:19:15,278 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-16 12:19:15,278 INFO L93 Difference]: Finished difference Result 560 states and 827 transitions. [2023-12-16 12:19:15,278 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 39 states. [2023-12-16 12:19:15,279 INFO L78 Accepts]: Start accepts. Automaton has has 19 states, 19 states have (on average 4.421052631578948) internal successors, (84), 19 states have internal predecessors, (84), 4 states have call successors, (93), 4 states have call predecessors, (93), 10 states have return successors, (94), 4 states have call predecessors, (94), 4 states have call successors, (94) Word has length 316 [2023-12-16 12:19:15,279 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-16 12:19:15,282 INFO L225 Difference]: With dead ends: 560 [2023-12-16 12:19:15,282 INFO L226 Difference]: Without dead ends: 442 [2023-12-16 12:19:15,283 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 666 GetRequests, 617 SyntacticMatches, 1 SemanticMatches, 48 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 662 ImplicationChecksByTransitivity, 1.4s TimeCoverageRelationStatistics Valid=674, Invalid=1776, Unknown=0, NotChecked=0, Total=2450 [2023-12-16 12:19:15,284 INFO L413 NwaCegarLoop]: 151 mSDtfsCounter, 289 mSDsluCounter, 400 mSDsCounter, 0 mSdLazyCounter, 792 mSolverCounterSat, 386 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 4.9s Time, 0 mProtectedPredicate, 0 mProtectedAction, 302 SdHoareTripleChecker+Valid, 551 SdHoareTripleChecker+Invalid, 1178 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 386 IncrementalHoareTripleChecker+Valid, 792 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 5.1s IncrementalHoareTripleChecker+Time [2023-12-16 12:19:15,284 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [302 Valid, 551 Invalid, 1178 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [386 Valid, 792 Invalid, 0 Unknown, 0 Unchecked, 5.1s Time] [2023-12-16 12:19:15,285 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 442 states. [2023-12-16 12:19:15,380 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 442 to 407. [2023-12-16 12:19:15,382 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 407 states, 219 states have (on average 1.182648401826484) internal successors, (259), 220 states have internal predecessors, (259), 171 states have call successors, (171), 16 states have call predecessors, (171), 16 states have return successors, (171), 170 states have call predecessors, (171), 171 states have call successors, (171) [2023-12-16 12:19:15,389 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 407 states to 407 states and 601 transitions. [2023-12-16 12:19:15,389 INFO L78 Accepts]: Start accepts. Automaton has 407 states and 601 transitions. Word has length 316 [2023-12-16 12:19:15,390 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-16 12:19:15,391 INFO L495 AbstractCegarLoop]: Abstraction has 407 states and 601 transitions. [2023-12-16 12:19:15,391 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 19 states, 19 states have (on average 4.421052631578948) internal successors, (84), 19 states have internal predecessors, (84), 4 states have call successors, (93), 4 states have call predecessors, (93), 10 states have return successors, (94), 4 states have call predecessors, (94), 4 states have call successors, (94) [2023-12-16 12:19:15,391 INFO L276 IsEmpty]: Start isEmpty. Operand 407 states and 601 transitions. [2023-12-16 12:19:15,396 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 317 [2023-12-16 12:19:15,396 INFO L187 NwaCegarLoop]: Found error trace [2023-12-16 12:19:15,397 INFO L195 NwaCegarLoop]: trace histogram [53, 53, 53, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 12:19:15,427 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 [2023-12-16 12:19:15,612 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 5 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2023-12-16 12:19:15,613 INFO L420 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-16 12:19:15,613 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-16 12:19:15,613 INFO L85 PathProgramCache]: Analyzing trace with hash -895293186, now seen corresponding path program 1 times [2023-12-16 12:19:15,614 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-12-16 12:19:15,614 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1795772714] [2023-12-16 12:19:15,614 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-16 12:19:15,614 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 12:19:15,614 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2023-12-16 12:19:15,615 INFO L229 MonitoredProcess]: Starting monitored process 6 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2023-12-16 12:19:15,641 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (6)] Waiting until timeout for monitored process [2023-12-16 12:19:16,093 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 12:19:16,113 INFO L262 TraceCheckSpWp]: Trace formula consists of 494 conjuncts, 8 conjunts are in the unsatisfiable core [2023-12-16 12:19:16,118 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-16 12:19:22,827 INFO L134 CoverageAnalysis]: Checked inductivity of 5512 backedges. 46 proven. 1440 refuted. 0 times theorem prover too weak. 4026 trivial. 0 not checked. [2023-12-16 12:19:22,827 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-12-16 12:19:23,697 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-12-16 12:19:23,697 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1795772714] [2023-12-16 12:19:23,697 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1795772714] provided 0 perfect and 1 imperfect interpolant sequences [2023-12-16 12:19:23,697 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleCvc4 [887771538] [2023-12-16 12:19:23,697 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-16 12:19:23,697 INFO L173 SolverBuilder]: Constructing external solver with command: cvc4 --incremental --print-success --lang smt [2023-12-16 12:19:23,697 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/cvc4 [2023-12-16 12:19:23,741 INFO L229 MonitoredProcess]: Starting monitored process 7 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/cvc4 --incremental --print-success --lang smt (exit command is (exit), workingDir is null) [2023-12-16 12:19:23,743 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/cvc4 --incremental --print-success --lang smt (7)] Waiting until timeout for monitored process [2023-12-16 12:19:25,618 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 12:19:25,647 INFO L262 TraceCheckSpWp]: Trace formula consists of 494 conjuncts, 32 conjunts are in the unsatisfiable core [2023-12-16 12:19:25,654 INFO L285 TraceCheckSpWp]: Computing forward predicates... Received shutdown request... [2023-12-16 12:19:52,173 WARN L340 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/cvc4 --incremental --print-success --lang smt (7)] Timeout while monitored process is still running, waiting 1000 ms for graceful end [2023-12-16 12:19:52,173 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 (6)] Timeout while monitored process is still running, waiting 1000 ms for graceful end [2023-12-16 12:19:52,173 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 12:19:53,198 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/cvc4 --incremental --print-success --lang smt (7)] Forceful destruction successful, exit code 0 [2023-12-16 12:19:53,222 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (6)] Forceful destruction successful, exit code 0 [2023-12-16 12:19:53,384 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 [2023-12-16 12:19:53,397 INFO L805 garLoopResultBuilder]: Registering result TIMEOUT for location ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION (0 of 1 remaining) [2023-12-16 12:19:53,397 WARN L619 AbstractCegarLoop]: Verification canceled: while NwaCegarLoop was analyzing trace of length 317 with TraceHistMax 53,while TraceCheckSpWp was constructing forward predicates,while executing Executor. [2023-12-16 12:19:53,400 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 [2023-12-16 12:19:53,406 INFO L445 BasicCegarLoop]: Path program histogram: [1, 1, 1, 1, 1] [2023-12-16 12:19:53,408 INFO L179 ceAbstractionStarter]: Computing trace abstraction results [2023-12-16 12:19:53,410 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 16.12 12:19:53 BoogieIcfgContainer [2023-12-16 12:19:53,410 INFO L131 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2023-12-16 12:19:53,410 INFO L158 Benchmark]: Toolchain (without parser) took 75960.30ms. Allocated memory was 184.5MB in the beginning and 256.9MB in the end (delta: 72.4MB). Free memory was 130.4MB in the beginning and 164.2MB in the end (delta: -33.8MB). Peak memory consumption was 39.8MB. Max. memory is 8.0GB. [2023-12-16 12:19:53,410 INFO L158 Benchmark]: CDTParser took 0.18ms. Allocated memory is still 184.5MB. Free memory was 136.1MB in the beginning and 135.9MB in the end (delta: 137.8kB). There was no memory consumed. Max. memory is 8.0GB. [2023-12-16 12:19:53,411 INFO L158 Benchmark]: CACSL2BoogieTranslator took 299.12ms. Allocated memory is still 184.5MB. Free memory was 130.0MB in the beginning and 112.8MB in the end (delta: 17.2MB). Peak memory consumption was 16.8MB. Max. memory is 8.0GB. [2023-12-16 12:19:53,411 INFO L158 Benchmark]: Boogie Procedure Inliner took 44.76ms. Allocated memory is still 184.5MB. Free memory was 112.8MB in the beginning and 109.8MB in the end (delta: 3.1MB). Peak memory consumption was 3.1MB. Max. memory is 8.0GB. [2023-12-16 12:19:53,411 INFO L158 Benchmark]: Boogie Preprocessor took 50.62ms. Allocated memory is still 184.5MB. Free memory was 109.8MB in the beginning and 105.6MB in the end (delta: 4.2MB). Peak memory consumption was 4.2MB. Max. memory is 8.0GB. [2023-12-16 12:19:53,411 INFO L158 Benchmark]: RCFGBuilder took 6389.68ms. Allocated memory was 184.5MB in the beginning and 256.9MB in the end (delta: 72.4MB). Free memory was 105.6MB in the beginning and 203.0MB in the end (delta: -97.4MB). Peak memory consumption was 17.0MB. Max. memory is 8.0GB. [2023-12-16 12:19:53,412 INFO L158 Benchmark]: TraceAbstraction took 69171.06ms. Allocated memory is still 256.9MB. Free memory was 201.9MB in the beginning and 164.2MB in the end (delta: 37.7MB). Peak memory consumption was 37.5MB. Max. memory is 8.0GB. [2023-12-16 12:19:53,413 INFO L338 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.18ms. Allocated memory is still 184.5MB. Free memory was 136.1MB in the beginning and 135.9MB in the end (delta: 137.8kB). There was no memory consumed. Max. memory is 8.0GB. * CACSL2BoogieTranslator took 299.12ms. Allocated memory is still 184.5MB. Free memory was 130.0MB in the beginning and 112.8MB in the end (delta: 17.2MB). Peak memory consumption was 16.8MB. Max. memory is 8.0GB. * Boogie Procedure Inliner took 44.76ms. Allocated memory is still 184.5MB. Free memory was 112.8MB in the beginning and 109.8MB in the end (delta: 3.1MB). Peak memory consumption was 3.1MB. Max. memory is 8.0GB. * Boogie Preprocessor took 50.62ms. Allocated memory is still 184.5MB. Free memory was 109.8MB in the beginning and 105.6MB in the end (delta: 4.2MB). Peak memory consumption was 4.2MB. Max. memory is 8.0GB. * RCFGBuilder took 6389.68ms. Allocated memory was 184.5MB in the beginning and 256.9MB in the end (delta: 72.4MB). Free memory was 105.6MB in the beginning and 203.0MB in the end (delta: -97.4MB). Peak memory consumption was 17.0MB. Max. memory is 8.0GB. * TraceAbstraction took 69171.06ms. Allocated memory is still 256.9MB. Free memory was 201.9MB in the beginning and 164.2MB in the end (delta: 37.7MB). Peak memory consumption was 37.5MB. 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 317 with TraceHistMax 53,while TraceCheckSpWp was constructing forward predicates,while executing Executor. - StatisticsResult: Ultimate Automizer benchmark data CFG has 2 procedures, 119 locations, 1 error locations. Started 1 CEGAR loops. OverallTime: 69.1s, OverallIterations: 5, TraceHistogramMax: 53, PathProgramHistogramMax: 1, EmptinessCheckTime: 0.0s, AutomataDifference: 21.1s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 3 mSolverCounterUnknown, 388 SdHoareTripleChecker+Valid, 19.8s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 375 mSDsluCounter, 1386 SdHoareTripleChecker+Invalid, 19.4s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 690 mSDsCounter, 388 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 822 IncrementalHoareTripleChecker+Invalid, 1213 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 388 mSolverCounterUnsat, 696 mSDtfsCounter, 822 mSolverCounterSat, 0.0s SdHoareTripleChecker+Time, 3 IncrementalHoareTripleChecker+Unknown, PredicateUnifierStatistics: 0 DeclaredPredicates, 1919 GetRequests, 1863 SyntacticMatches, 1 SemanticMatches, 55 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 664 ImplicationChecksByTransitivity, 1.5s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=407occurred in iteration=4, InterpolantAutomatonStates: 47, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: 0.2s AutomataMinimizationTime, 4 MinimizatonAttempts, 39 StatesRemovedByMinimization, 2 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.1s SsaConstructionTime, 1.8s SatisfiabilityAnalysisTime, 6.9s InterpolantComputationTime, 1259 NumberOfCodeBlocks, 1259 NumberOfCodeBlocksAsserted, 4 NumberOfCheckSat, 1883 ConstructedInterpolants, 0 QuantifiedInterpolants, 6638 SizeOfPredicates, 12 NumberOfNonLiveVariables, 1974 ConjunctsInSsa, 20 ConjunctsInUnsatCore, 6 InterpolantComputations, 3 PerfectInterpolantSequences, 32268/33072 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