/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-ci_file-4.i -------------------------------------------------------------------------------- This is Ultimate 0.2.4-tmp.fs.bitabs-eval-d9c3e40-m [2023-12-16 12:10:27,839 INFO L188 SettingsManager]: Resetting all preferences to default values... [2023-12-16 12:10:27,911 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 12:10:27,915 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2023-12-16 12:10:27,916 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2023-12-16 12:10:27,939 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2023-12-16 12:10:27,939 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2023-12-16 12:10:27,940 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2023-12-16 12:10:27,940 INFO L151 SettingsManager]: Preferences of Boogie Preprocessor differ from their defaults: [2023-12-16 12:10:27,940 INFO L153 SettingsManager]: * Use memory slicer=true [2023-12-16 12:10:27,941 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2023-12-16 12:10:27,941 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2023-12-16 12:10:27,941 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2023-12-16 12:10:27,942 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2023-12-16 12:10:27,942 INFO L153 SettingsManager]: * Use SBE=true [2023-12-16 12:10:27,942 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2023-12-16 12:10:27,943 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2023-12-16 12:10:27,943 INFO L153 SettingsManager]: * sizeof long=4 [2023-12-16 12:10:27,943 INFO L153 SettingsManager]: * sizeof POINTER=4 [2023-12-16 12:10:27,943 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2023-12-16 12:10:27,944 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2023-12-16 12:10:27,944 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2023-12-16 12:10:27,945 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2023-12-16 12:10:27,945 INFO L153 SettingsManager]: * Adapt memory model on pointer casts if necessary=true [2023-12-16 12:10:27,945 INFO L153 SettingsManager]: * Use bitvectors instead of ints=true [2023-12-16 12:10:27,946 INFO L153 SettingsManager]: * Allow undefined functions=false [2023-12-16 12:10:27,946 INFO L153 SettingsManager]: * Memory model=HoenickeLindenmann_4ByteResolution [2023-12-16 12:10:27,946 INFO L153 SettingsManager]: * sizeof long double=12 [2023-12-16 12:10:27,947 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2023-12-16 12:10:27,947 INFO L153 SettingsManager]: * Use constant arrays=true [2023-12-16 12:10:27,947 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2023-12-16 12:10:27,947 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2023-12-16 12:10:27,948 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2023-12-16 12:10:27,948 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2023-12-16 12:10:27,948 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2023-12-16 12:10:27,949 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2023-12-16 12:10:27,949 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2023-12-16 12:10:27,949 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2023-12-16 12:10:27,949 INFO L153 SettingsManager]: * Trace refinement strategy=WOLF [2023-12-16 12:10:27,950 INFO L153 SettingsManager]: * Command for external solver=cvc4 --incremental --print-success --lang smt [2023-12-16 12:10:27,950 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2023-12-16 12:10:27,950 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2023-12-16 12:10:27,950 INFO L153 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2023-12-16 12:10:27,951 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2023-12-16 12:10:27,951 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2023-12-16 12:10:27,951 INFO L153 SettingsManager]: * Logic for external solver=AUFBV [2023-12-16 12:10:27,951 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release [2023-12-16 12:10:28,185 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2023-12-16 12:10:28,207 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2023-12-16 12:10:28,209 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2023-12-16 12:10:28,210 INFO L270 PluginConnector]: Initializing CDTParser... [2023-12-16 12:10:28,210 INFO L274 PluginConnector]: CDTParser initialized [2023-12-16 12:10:28,212 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/hardness-nfm22/hardness_fillercode_fillercodestructure_filler-pr-ci_file-4.i [2023-12-16 12:10:29,416 INFO L533 CDTParser]: Created temporary CDT project at NULL [2023-12-16 12:10:29,594 INFO L384 CDTParser]: Found 1 translation units. [2023-12-16 12:10:29,594 INFO L180 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/hardness-nfm22/hardness_fillercode_fillercodestructure_filler-pr-ci_file-4.i [2023-12-16 12:10:29,605 INFO L427 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/135911061/e9548ca27ed3417aa3e95f99676d5947/FLAGe9010d665 [2023-12-16 12:10:29,624 INFO L435 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/135911061/e9548ca27ed3417aa3e95f99676d5947 [2023-12-16 12:10:29,626 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2023-12-16 12:10:29,627 INFO L133 ToolchainWalker]: Walking toolchain with 5 elements. [2023-12-16 12:10:29,628 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2023-12-16 12:10:29,628 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2023-12-16 12:10:29,637 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2023-12-16 12:10:29,637 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 16.12 12:10:29" (1/1) ... [2023-12-16 12:10:29,638 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@1df53c6a and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.12 12:10:29, skipping insertion in model container [2023-12-16 12:10:29,638 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 16.12 12:10:29" (1/1) ... [2023-12-16 12:10:29,684 INFO L177 MainTranslator]: Built tables and reachable declarations [2023-12-16 12:10:29,811 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-ci_file-4.i[918,931] [2023-12-16 12:10:29,876 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-12-16 12:10:29,890 INFO L202 MainTranslator]: Completed pre-run [2023-12-16 12:10:29,900 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-ci_file-4.i[918,931] [2023-12-16 12:10:29,930 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-12-16 12:10:29,945 INFO L206 MainTranslator]: Completed translation [2023-12-16 12:10:29,946 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.12 12:10:29 WrapperNode [2023-12-16 12:10:29,946 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2023-12-16 12:10:29,947 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2023-12-16 12:10:29,947 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2023-12-16 12:10:29,947 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2023-12-16 12:10:29,953 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.12 12:10:29" (1/1) ... [2023-12-16 12:10:29,965 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.12 12:10:29" (1/1) ... [2023-12-16 12:10:29,995 INFO L138 Inliner]: procedures = 27, calls = 46, calls flagged for inlining = 8, calls inlined = 8, statements flattened = 210 [2023-12-16 12:10:29,995 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2023-12-16 12:10:29,996 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2023-12-16 12:10:29,996 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2023-12-16 12:10:29,996 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2023-12-16 12:10:30,005 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.12 12:10:29" (1/1) ... [2023-12-16 12:10:30,006 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.12 12:10:29" (1/1) ... [2023-12-16 12:10:30,010 INFO L184 PluginConnector]: Executing the observer MemorySlicer from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.12 12:10:29" (1/1) ... [2023-12-16 12:10:30,025 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 12:10:30,026 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.12 12:10:29" (1/1) ... [2023-12-16 12:10:30,026 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.12 12:10:29" (1/1) ... [2023-12-16 12:10:30,035 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.12 12:10:29" (1/1) ... [2023-12-16 12:10:30,047 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.12 12:10:29" (1/1) ... [2023-12-16 12:10:30,050 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.12 12:10:29" (1/1) ... [2023-12-16 12:10:30,051 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.12 12:10:29" (1/1) ... [2023-12-16 12:10:30,055 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2023-12-16 12:10:30,056 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2023-12-16 12:10:30,056 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2023-12-16 12:10:30,056 INFO L274 PluginConnector]: RCFGBuilder initialized [2023-12-16 12:10:30,057 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.12 12:10:29" (1/1) ... [2023-12-16 12:10:30,064 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2023-12-16 12:10:30,075 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-12-16 12:10:30,085 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 12:10:30,086 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 12:10:30,104 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2023-12-16 12:10:30,105 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE1#0 [2023-12-16 12:10:30,105 INFO L130 BoogieDeclarations]: Found specification of procedure assume_abort_if_not [2023-12-16 12:10:30,105 INFO L138 BoogieDeclarations]: Found implementation of procedure assume_abort_if_not [2023-12-16 12:10:30,105 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2023-12-16 12:10:30,105 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2023-12-16 12:10:30,182 INFO L241 CfgBuilder]: Building ICFG [2023-12-16 12:10:30,184 INFO L267 CfgBuilder]: Building CFG for each procedure with an implementation [2023-12-16 12:10:30,899 INFO L282 CfgBuilder]: Performing block encoding [2023-12-16 12:10:30,971 INFO L304 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2023-12-16 12:10:30,971 INFO L309 CfgBuilder]: Removed 1 assume(true) statements. [2023-12-16 12:10:30,971 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 16.12 12:10:30 BoogieIcfgContainer [2023-12-16 12:10:30,972 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2023-12-16 12:10:30,986 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2023-12-16 12:10:30,986 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2023-12-16 12:10:30,989 INFO L274 PluginConnector]: TraceAbstraction initialized [2023-12-16 12:10:30,989 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 16.12 12:10:29" (1/3) ... [2023-12-16 12:10:30,990 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@63582bd4 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 16.12 12:10:30, skipping insertion in model container [2023-12-16 12:10:30,990 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.12 12:10:29" (2/3) ... [2023-12-16 12:10:30,990 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@63582bd4 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 16.12 12:10:30, skipping insertion in model container [2023-12-16 12:10:30,990 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 16.12 12:10:30" (3/3) ... [2023-12-16 12:10:30,991 INFO L112 eAbstractionObserver]: Analyzing ICFG hardness_fillercode_fillercodestructure_filler-pr-ci_file-4.i [2023-12-16 12:10:31,008 INFO L204 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2023-12-16 12:10:31,009 INFO L163 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2023-12-16 12:10:31,047 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2023-12-16 12:10:31,053 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;@58382fb6, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2023-12-16 12:10:31,053 INFO L358 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2023-12-16 12:10:31,057 INFO L276 IsEmpty]: Start isEmpty. Operand has 91 states, 55 states have (on average 1.490909090909091) internal successors, (82), 56 states have internal predecessors, (82), 33 states have call successors, (33), 1 states have call predecessors, (33), 1 states have return successors, (33), 33 states have call predecessors, (33), 33 states have call successors, (33) [2023-12-16 12:10:31,071 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 206 [2023-12-16 12:10:31,071 INFO L187 NwaCegarLoop]: Found error trace [2023-12-16 12:10:31,072 INFO L195 NwaCegarLoop]: trace histogram [33, 33, 33, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 12:10:31,072 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-16 12:10:31,077 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-16 12:10:31,077 INFO L85 PathProgramCache]: Analyzing trace with hash -1060511020, now seen corresponding path program 1 times [2023-12-16 12:10:31,091 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-12-16 12:10:31,091 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1121853502] [2023-12-16 12:10:31,092 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-16 12:10:31,092 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 12:10:31,092 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2023-12-16 12:10:31,094 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 12:10:31,099 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 12:10:31,380 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 12:10:31,391 INFO L262 TraceCheckSpWp]: Trace formula consists of 338 conjuncts, 1 conjunts are in the unsatisfiable core [2023-12-16 12:10:31,402 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-16 12:10:31,456 INFO L134 CoverageAnalysis]: Checked inductivity of 2112 backedges. 988 proven. 0 refuted. 0 times theorem prover too weak. 1124 trivial. 0 not checked. [2023-12-16 12:10:31,456 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-12-16 12:10:31,457 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-12-16 12:10:31,457 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1121853502] [2023-12-16 12:10:31,458 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1121853502] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-16 12:10:31,458 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-16 12:10:31,458 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2023-12-16 12:10:31,460 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1284984053] [2023-12-16 12:10:31,460 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-16 12:10:31,464 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2023-12-16 12:10:31,464 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-12-16 12:10:31,487 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2023-12-16 12:10:31,488 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2023-12-16 12:10:31,490 INFO L87 Difference]: Start difference. First operand has 91 states, 55 states have (on average 1.490909090909091) internal successors, (82), 56 states have internal predecessors, (82), 33 states have call successors, (33), 1 states have call predecessors, (33), 1 states have return successors, (33), 33 states have call predecessors, (33), 33 states have call successors, (33) Second operand has 2 states, 2 states have (on average 23.5) internal successors, (47), 2 states have internal predecessors, (47), 2 states have call successors, (33), 2 states have call predecessors, (33), 2 states have return successors, (33), 2 states have call predecessors, (33), 2 states have call successors, (33) [2023-12-16 12:10:31,719 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-16 12:10:31,720 INFO L93 Difference]: Finished difference Result 179 states and 327 transitions. [2023-12-16 12:10:31,732 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2023-12-16 12:10:31,734 INFO L78 Accepts]: Start accepts. Automaton has has 2 states, 2 states have (on average 23.5) internal successors, (47), 2 states have internal predecessors, (47), 2 states have call successors, (33), 2 states have call predecessors, (33), 2 states have return successors, (33), 2 states have call predecessors, (33), 2 states have call successors, (33) Word has length 205 [2023-12-16 12:10:31,734 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-16 12:10:31,741 INFO L225 Difference]: With dead ends: 179 [2023-12-16 12:10:31,741 INFO L226 Difference]: Without dead ends: 89 [2023-12-16 12:10:31,745 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 204 GetRequests, 204 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 12:10:31,748 INFO L413 NwaCegarLoop]: 139 mSDtfsCounter, 0 mSDsluCounter, 0 mSDsCounter, 0 mSdLazyCounter, 3 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 139 SdHoareTripleChecker+Invalid, 3 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 3 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2023-12-16 12:10:31,749 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 139 Invalid, 3 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 3 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2023-12-16 12:10:31,763 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 89 states. [2023-12-16 12:10:31,787 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 89 to 89. [2023-12-16 12:10:31,790 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 89 states, 54 states have (on average 1.4074074074074074) internal successors, (76), 54 states have internal predecessors, (76), 33 states have call successors, (33), 1 states have call predecessors, (33), 1 states have return successors, (33), 33 states have call predecessors, (33), 33 states have call successors, (33) [2023-12-16 12:10:31,797 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 89 states to 89 states and 142 transitions. [2023-12-16 12:10:31,800 INFO L78 Accepts]: Start accepts. Automaton has 89 states and 142 transitions. Word has length 205 [2023-12-16 12:10:31,800 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-16 12:10:31,800 INFO L495 AbstractCegarLoop]: Abstraction has 89 states and 142 transitions. [2023-12-16 12:10:31,800 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 2 states, 2 states have (on average 23.5) internal successors, (47), 2 states have internal predecessors, (47), 2 states have call successors, (33), 2 states have call predecessors, (33), 2 states have return successors, (33), 2 states have call predecessors, (33), 2 states have call successors, (33) [2023-12-16 12:10:31,801 INFO L276 IsEmpty]: Start isEmpty. Operand 89 states and 142 transitions. [2023-12-16 12:10:31,806 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 207 [2023-12-16 12:10:31,806 INFO L187 NwaCegarLoop]: Found error trace [2023-12-16 12:10:31,806 INFO L195 NwaCegarLoop]: trace histogram [33, 33, 33, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 12:10:31,815 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 12:10:32,012 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 12:10:32,013 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-16 12:10:32,013 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-16 12:10:32,014 INFO L85 PathProgramCache]: Analyzing trace with hash -1567829025, now seen corresponding path program 1 times [2023-12-16 12:10:32,015 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-12-16 12:10:32,016 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [2068980874] [2023-12-16 12:10:32,016 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-16 12:10:32,016 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 12:10:32,017 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2023-12-16 12:10:32,018 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 12:10:32,049 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 12:10:32,288 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 12:10:32,298 INFO L262 TraceCheckSpWp]: Trace formula consists of 340 conjuncts, 9 conjunts are in the unsatisfiable core [2023-12-16 12:10:32,306 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-16 12:10:33,342 INFO L134 CoverageAnalysis]: Checked inductivity of 2112 backedges. 309 proven. 177 refuted. 0 times theorem prover too weak. 1626 trivial. 0 not checked. [2023-12-16 12:10:33,343 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-12-16 12:10:33,848 INFO L134 CoverageAnalysis]: Checked inductivity of 2112 backedges. 9 proven. 180 refuted. 0 times theorem prover too weak. 1923 trivial. 0 not checked. [2023-12-16 12:10:33,848 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-12-16 12:10:33,851 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [2068980874] [2023-12-16 12:10:33,852 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [2068980874] provided 0 perfect and 2 imperfect interpolant sequences [2023-12-16 12:10:33,853 INFO L185 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2023-12-16 12:10:33,853 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [10, 10] total 14 [2023-12-16 12:10:33,853 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [874616334] [2023-12-16 12:10:33,854 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2023-12-16 12:10:33,857 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 14 states [2023-12-16 12:10:33,858 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-12-16 12:10:33,859 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 14 interpolants. [2023-12-16 12:10:33,859 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=54, Invalid=128, Unknown=0, NotChecked=0, Total=182 [2023-12-16 12:10:33,860 INFO L87 Difference]: Start difference. First operand 89 states and 142 transitions. Second operand has 14 states, 14 states have (on average 4.428571428571429) internal successors, (62), 14 states have internal predecessors, (62), 3 states have call successors, (64), 3 states have call predecessors, (64), 7 states have return successors, (65), 3 states have call predecessors, (65), 3 states have call successors, (65) [2023-12-16 12:10:35,119 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-16 12:10:35,120 INFO L93 Difference]: Finished difference Result 212 states and 326 transitions. [2023-12-16 12:10:35,121 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 17 states. [2023-12-16 12:10:35,122 INFO L78 Accepts]: Start accepts. Automaton has has 14 states, 14 states have (on average 4.428571428571429) internal successors, (62), 14 states have internal predecessors, (62), 3 states have call successors, (64), 3 states have call predecessors, (64), 7 states have return successors, (65), 3 states have call predecessors, (65), 3 states have call successors, (65) Word has length 206 [2023-12-16 12:10:35,123 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-16 12:10:35,125 INFO L225 Difference]: With dead ends: 212 [2023-12-16 12:10:35,125 INFO L226 Difference]: Without dead ends: 124 [2023-12-16 12:10:35,126 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 420 GetRequests, 397 SyntacticMatches, 2 SemanticMatches, 21 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 86 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=155, Invalid=351, Unknown=0, NotChecked=0, Total=506 [2023-12-16 12:10:35,127 INFO L413 NwaCegarLoop]: 93 mSDtfsCounter, 329 mSDsluCounter, 253 mSDsCounter, 0 mSdLazyCounter, 344 mSolverCounterSat, 33 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 331 SdHoareTripleChecker+Valid, 346 SdHoareTripleChecker+Invalid, 377 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 33 IncrementalHoareTripleChecker+Valid, 344 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.1s IncrementalHoareTripleChecker+Time [2023-12-16 12:10:35,128 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [331 Valid, 346 Invalid, 377 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [33 Valid, 344 Invalid, 0 Unknown, 0 Unchecked, 1.1s Time] [2023-12-16 12:10:35,129 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 124 states. [2023-12-16 12:10:35,144 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 124 to 105. [2023-12-16 12:10:35,145 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 105 states, 68 states have (on average 1.3088235294117647) internal successors, (89), 68 states have internal predecessors, (89), 33 states have call successors, (33), 3 states have call predecessors, (33), 3 states have return successors, (33), 33 states have call predecessors, (33), 33 states have call successors, (33) [2023-12-16 12:10:35,146 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 105 states to 105 states and 155 transitions. [2023-12-16 12:10:35,146 INFO L78 Accepts]: Start accepts. Automaton has 105 states and 155 transitions. Word has length 206 [2023-12-16 12:10:35,147 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-16 12:10:35,147 INFO L495 AbstractCegarLoop]: Abstraction has 105 states and 155 transitions. [2023-12-16 12:10:35,147 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 14 states, 14 states have (on average 4.428571428571429) internal successors, (62), 14 states have internal predecessors, (62), 3 states have call successors, (64), 3 states have call predecessors, (64), 7 states have return successors, (65), 3 states have call predecessors, (65), 3 states have call successors, (65) [2023-12-16 12:10:35,147 INFO L276 IsEmpty]: Start isEmpty. Operand 105 states and 155 transitions. [2023-12-16 12:10:35,150 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 208 [2023-12-16 12:10:35,150 INFO L187 NwaCegarLoop]: Found error trace [2023-12-16 12:10:35,150 INFO L195 NwaCegarLoop]: trace histogram [33, 33, 33, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 12:10:35,160 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 12:10:35,360 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 12:10:35,361 INFO L420 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-16 12:10:35,361 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-16 12:10:35,362 INFO L85 PathProgramCache]: Analyzing trace with hash -1024936788, now seen corresponding path program 1 times [2023-12-16 12:10:35,362 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-12-16 12:10:35,362 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1906919579] [2023-12-16 12:10:35,363 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-16 12:10:35,363 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 12:10:35,363 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2023-12-16 12:10:35,364 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 12:10:35,365 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 12:10:35,609 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 12:10:35,622 INFO L262 TraceCheckSpWp]: Trace formula consists of 342 conjuncts, 4 conjunts are in the unsatisfiable core [2023-12-16 12:10:35,628 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-16 12:10:35,952 INFO L134 CoverageAnalysis]: Checked inductivity of 2112 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 2112 trivial. 0 not checked. [2023-12-16 12:10:35,953 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-12-16 12:10:35,953 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-12-16 12:10:35,953 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1906919579] [2023-12-16 12:10:35,953 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1906919579] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-16 12:10:35,953 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-16 12:10:35,953 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2023-12-16 12:10:35,954 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1030242798] [2023-12-16 12:10:35,954 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-16 12:10:35,954 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2023-12-16 12:10:35,954 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-12-16 12:10:35,955 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2023-12-16 12:10:35,955 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2023-12-16 12:10:35,956 INFO L87 Difference]: Start difference. First operand 105 states and 155 transitions. Second operand has 5 states, 5 states have (on average 9.0) internal successors, (45), 4 states have internal predecessors, (45), 1 states have call successors, (33), 1 states have call predecessors, (33), 1 states have return successors, (33), 1 states have call predecessors, (33), 1 states have call successors, (33) [2023-12-16 12:10:37,155 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-16 12:10:37,155 INFO L93 Difference]: Finished difference Result 313 states and 462 transitions. [2023-12-16 12:10:37,156 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2023-12-16 12:10:37,156 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 9.0) internal successors, (45), 4 states have internal predecessors, (45), 1 states have call successors, (33), 1 states have call predecessors, (33), 1 states have return successors, (33), 1 states have call predecessors, (33), 1 states have call successors, (33) Word has length 207 [2023-12-16 12:10:37,157 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-16 12:10:37,159 INFO L225 Difference]: With dead ends: 313 [2023-12-16 12:10:37,159 INFO L226 Difference]: Without dead ends: 209 [2023-12-16 12:10:37,160 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 207 GetRequests, 203 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=14, Invalid=16, Unknown=0, NotChecked=0, Total=30 [2023-12-16 12:10:37,161 INFO L413 NwaCegarLoop]: 220 mSDtfsCounter, 187 mSDsluCounter, 144 mSDsCounter, 0 mSdLazyCounter, 269 mSolverCounterSat, 3 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 187 SdHoareTripleChecker+Valid, 364 SdHoareTripleChecker+Invalid, 272 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 3 IncrementalHoareTripleChecker+Valid, 269 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.1s IncrementalHoareTripleChecker+Time [2023-12-16 12:10:37,161 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [187 Valid, 364 Invalid, 272 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [3 Valid, 269 Invalid, 0 Unknown, 0 Unchecked, 1.1s Time] [2023-12-16 12:10:37,162 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 209 states. [2023-12-16 12:10:37,216 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 209 to 196. [2023-12-16 12:10:37,218 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 196 states, 123 states have (on average 1.2601626016260163) internal successors, (155), 123 states have internal predecessors, (155), 66 states have call successors, (66), 6 states have call predecessors, (66), 6 states have return successors, (66), 66 states have call predecessors, (66), 66 states have call successors, (66) [2023-12-16 12:10:37,220 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 196 states to 196 states and 287 transitions. [2023-12-16 12:10:37,221 INFO L78 Accepts]: Start accepts. Automaton has 196 states and 287 transitions. Word has length 207 [2023-12-16 12:10:37,223 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-16 12:10:37,223 INFO L495 AbstractCegarLoop]: Abstraction has 196 states and 287 transitions. [2023-12-16 12:10:37,223 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 9.0) internal successors, (45), 4 states have internal predecessors, (45), 1 states have call successors, (33), 1 states have call predecessors, (33), 1 states have return successors, (33), 1 states have call predecessors, (33), 1 states have call successors, (33) [2023-12-16 12:10:37,224 INFO L276 IsEmpty]: Start isEmpty. Operand 196 states and 287 transitions. [2023-12-16 12:10:37,228 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 208 [2023-12-16 12:10:37,229 INFO L187 NwaCegarLoop]: Found error trace [2023-12-16 12:10:37,229 INFO L195 NwaCegarLoop]: trace histogram [33, 33, 33, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 12:10:37,242 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 12:10:37,438 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 12:10:37,439 INFO L420 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-16 12:10:37,439 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-16 12:10:37,440 INFO L85 PathProgramCache]: Analyzing trace with hash -323872210, now seen corresponding path program 1 times [2023-12-16 12:10:37,440 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-12-16 12:10:37,440 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [37751358] [2023-12-16 12:10:37,441 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-16 12:10:37,441 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 12:10:37,441 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2023-12-16 12:10:37,442 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 12:10:37,446 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 12:10:37,699 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 12:10:37,714 INFO L262 TraceCheckSpWp]: Trace formula consists of 342 conjuncts, 8 conjunts are in the unsatisfiable core [2023-12-16 12:10:37,719 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-16 12:10:39,031 INFO L134 CoverageAnalysis]: Checked inductivity of 2112 backedges. 816 proven. 72 refuted. 0 times theorem prover too weak. 1224 trivial. 0 not checked. [2023-12-16 12:10:39,031 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-12-16 12:10:39,234 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-12-16 12:10:39,234 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [37751358] [2023-12-16 12:10:39,234 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [37751358] provided 0 perfect and 1 imperfect interpolant sequences [2023-12-16 12:10:39,235 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleCvc4 [2029684144] [2023-12-16 12:10:39,235 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-16 12:10:39,235 INFO L173 SolverBuilder]: Constructing external solver with command: cvc4 --incremental --print-success --lang smt [2023-12-16 12:10:39,235 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/cvc4 [2023-12-16 12:10:39,274 INFO L229 MonitoredProcess]: Starting monitored process 6 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/cvc4 --incremental --print-success --lang smt (exit command is (exit), workingDir is null) [2023-12-16 12:10:39,276 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/cvc4 --incremental --print-success --lang smt (6)] Waiting until timeout for monitored process [2023-12-16 12:10:39,899 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 12:10:39,908 INFO L262 TraceCheckSpWp]: Trace formula consists of 342 conjuncts, 11 conjunts are in the unsatisfiable core [2023-12-16 12:10:39,913 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-16 12:10:41,129 INFO L134 CoverageAnalysis]: Checked inductivity of 2112 backedges. 932 proven. 135 refuted. 0 times theorem prover too weak. 1045 trivial. 0 not checked. [2023-12-16 12:10:41,129 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-12-16 12:10:41,485 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleCvc4 [2029684144] provided 0 perfect and 1 imperfect interpolant sequences [2023-12-16 12:10:41,486 INFO L185 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2023-12-16 12:10:41,486 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [7, 10] total 16 [2023-12-16 12:10:41,486 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1889804218] [2023-12-16 12:10:41,486 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2023-12-16 12:10:41,487 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 17 states [2023-12-16 12:10:41,487 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-12-16 12:10:41,488 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 17 interpolants. [2023-12-16 12:10:41,488 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=76, Invalid=344, Unknown=0, NotChecked=0, Total=420 [2023-12-16 12:10:41,488 INFO L87 Difference]: Start difference. First operand 196 states and 287 transitions. Second operand has 17 states, 17 states have (on average 5.588235294117647) internal successors, (95), 16 states have internal predecessors, (95), 5 states have call successors, (66), 5 states have call predecessors, (66), 8 states have return successors, (66), 5 states have call predecessors, (66), 5 states have call successors, (66) [2023-12-16 12:10:46,836 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-16 12:10:46,837 INFO L93 Difference]: Finished difference Result 530 states and 752 transitions. [2023-12-16 12:10:46,837 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 22 states. [2023-12-16 12:10:46,838 INFO L78 Accepts]: Start accepts. Automaton has has 17 states, 17 states have (on average 5.588235294117647) internal successors, (95), 16 states have internal predecessors, (95), 5 states have call successors, (66), 5 states have call predecessors, (66), 8 states have return successors, (66), 5 states have call predecessors, (66), 5 states have call successors, (66) Word has length 207 [2023-12-16 12:10:46,838 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-16 12:10:46,841 INFO L225 Difference]: With dead ends: 530 [2023-12-16 12:10:46,841 INFO L226 Difference]: Without dead ends: 335 [2023-12-16 12:10:46,843 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 482 GetRequests, 443 SyntacticMatches, 0 SemanticMatches, 39 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 332 ImplicationChecksByTransitivity, 1.6s TimeCoverageRelationStatistics Valid=457, Invalid=1183, Unknown=0, NotChecked=0, Total=1640 [2023-12-16 12:10:46,844 INFO L413 NwaCegarLoop]: 151 mSDtfsCounter, 332 mSDsluCounter, 544 mSDsCounter, 0 mSdLazyCounter, 1077 mSolverCounterSat, 250 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 3.8s Time, 0 mProtectedPredicate, 0 mProtectedAction, 332 SdHoareTripleChecker+Valid, 695 SdHoareTripleChecker+Invalid, 1327 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 250 IncrementalHoareTripleChecker+Valid, 1077 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 4.1s IncrementalHoareTripleChecker+Time [2023-12-16 12:10:46,844 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [332 Valid, 695 Invalid, 1327 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [250 Valid, 1077 Invalid, 0 Unknown, 0 Unchecked, 4.1s Time] [2023-12-16 12:10:46,845 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 335 states. [2023-12-16 12:10:46,885 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 335 to 312. [2023-12-16 12:10:46,886 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 312 states, 197 states have (on average 1.2233502538071066) internal successors, (241), 197 states have internal predecessors, (241), 99 states have call successors, (99), 15 states have call predecessors, (99), 15 states have return successors, (99), 99 states have call predecessors, (99), 99 states have call successors, (99) [2023-12-16 12:10:46,888 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 312 states to 312 states and 439 transitions. [2023-12-16 12:10:46,888 INFO L78 Accepts]: Start accepts. Automaton has 312 states and 439 transitions. Word has length 207 [2023-12-16 12:10:46,889 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-16 12:10:46,889 INFO L495 AbstractCegarLoop]: Abstraction has 312 states and 439 transitions. [2023-12-16 12:10:46,889 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 17 states, 17 states have (on average 5.588235294117647) internal successors, (95), 16 states have internal predecessors, (95), 5 states have call successors, (66), 5 states have call predecessors, (66), 8 states have return successors, (66), 5 states have call predecessors, (66), 5 states have call successors, (66) [2023-12-16 12:10:46,889 INFO L276 IsEmpty]: Start isEmpty. Operand 312 states and 439 transitions. [2023-12-16 12:10:46,891 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 208 [2023-12-16 12:10:46,891 INFO L187 NwaCegarLoop]: Found error trace [2023-12-16 12:10:46,892 INFO L195 NwaCegarLoop]: trace histogram [33, 33, 33, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 12:10:46,908 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 12:10:47,108 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/cvc4 --incremental --print-success --lang smt (6)] Forceful destruction successful, exit code 0 [2023-12-16 12:10:47,302 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 5 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3,6 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/cvc4 --incremental --print-success --lang smt [2023-12-16 12:10:47,302 INFO L420 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-16 12:10:47,303 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-16 12:10:47,303 INFO L85 PathProgramCache]: Analyzing trace with hash 1976950380, now seen corresponding path program 1 times [2023-12-16 12:10:47,304 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-12-16 12:10:47,304 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1514271958] [2023-12-16 12:10:47,304 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-16 12:10:47,304 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 12:10:47,305 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2023-12-16 12:10:47,306 INFO L229 MonitoredProcess]: Starting monitored process 7 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2023-12-16 12:10:47,308 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (7)] Waiting until timeout for monitored process [2023-12-16 12:10:47,503 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 12:10:47,514 INFO L262 TraceCheckSpWp]: Trace formula consists of 341 conjuncts, 6 conjunts are in the unsatisfiable core [2023-12-16 12:10:47,517 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-16 12:10:48,444 INFO L134 CoverageAnalysis]: Checked inductivity of 2112 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 2112 trivial. 0 not checked. [2023-12-16 12:10:48,445 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-12-16 12:10:48,445 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-12-16 12:10:48,445 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1514271958] [2023-12-16 12:10:48,445 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1514271958] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-16 12:10:48,445 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-16 12:10:48,445 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2023-12-16 12:10:48,445 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [847911984] [2023-12-16 12:10:48,445 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-16 12:10:48,446 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2023-12-16 12:10:48,446 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-12-16 12:10:48,446 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2023-12-16 12:10:48,447 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2023-12-16 12:10:48,447 INFO L87 Difference]: Start difference. First operand 312 states and 439 transitions. Second operand has 5 states, 5 states have (on average 9.0) internal successors, (45), 4 states have internal predecessors, (45), 1 states have call successors, (33), 1 states have call predecessors, (33), 1 states have return successors, (33), 1 states have call predecessors, (33), 1 states have call successors, (33) [2023-12-16 12:10:49,688 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-16 12:10:49,689 INFO L93 Difference]: Finished difference Result 517 states and 722 transitions. [2023-12-16 12:10:49,705 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2023-12-16 12:10:49,706 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 9.0) internal successors, (45), 4 states have internal predecessors, (45), 1 states have call successors, (33), 1 states have call predecessors, (33), 1 states have return successors, (33), 1 states have call predecessors, (33), 1 states have call successors, (33) Word has length 207 [2023-12-16 12:10:49,708 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-16 12:10:49,709 INFO L225 Difference]: With dead ends: 517 [2023-12-16 12:10:49,709 INFO L226 Difference]: Without dead ends: 206 [2023-12-16 12:10:49,711 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 209 GetRequests, 203 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=22, Invalid=34, Unknown=0, NotChecked=0, Total=56 [2023-12-16 12:10:49,712 INFO L413 NwaCegarLoop]: 122 mSDtfsCounter, 94 mSDsluCounter, 289 mSDsCounter, 0 mSdLazyCounter, 107 mSolverCounterSat, 67 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 94 SdHoareTripleChecker+Valid, 411 SdHoareTripleChecker+Invalid, 174 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 67 IncrementalHoareTripleChecker+Valid, 107 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.2s IncrementalHoareTripleChecker+Time [2023-12-16 12:10:49,712 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [94 Valid, 411 Invalid, 174 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [67 Valid, 107 Invalid, 0 Unknown, 0 Unchecked, 1.2s Time] [2023-12-16 12:10:49,713 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 206 states. [2023-12-16 12:10:49,741 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 206 to 183. [2023-12-16 12:10:49,742 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 183 states, 106 states have (on average 1.150943396226415) internal successors, (122), 106 states have internal predecessors, (122), 66 states have call successors, (66), 10 states have call predecessors, (66), 10 states have return successors, (66), 66 states have call predecessors, (66), 66 states have call successors, (66) [2023-12-16 12:10:49,743 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 183 states to 183 states and 254 transitions. [2023-12-16 12:10:49,743 INFO L78 Accepts]: Start accepts. Automaton has 183 states and 254 transitions. Word has length 207 [2023-12-16 12:10:49,744 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-16 12:10:49,744 INFO L495 AbstractCegarLoop]: Abstraction has 183 states and 254 transitions. [2023-12-16 12:10:49,744 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 9.0) internal successors, (45), 4 states have internal predecessors, (45), 1 states have call successors, (33), 1 states have call predecessors, (33), 1 states have return successors, (33), 1 states have call predecessors, (33), 1 states have call successors, (33) [2023-12-16 12:10:49,744 INFO L276 IsEmpty]: Start isEmpty. Operand 183 states and 254 transitions. [2023-12-16 12:10:49,746 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 209 [2023-12-16 12:10:49,746 INFO L187 NwaCegarLoop]: Found error trace [2023-12-16 12:10:49,747 INFO L195 NwaCegarLoop]: trace histogram [33, 33, 33, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 12:10:49,759 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 [2023-12-16 12:10:49,956 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 7 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2023-12-16 12:10:49,957 INFO L420 AbstractCegarLoop]: === Iteration 6 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-16 12:10:49,957 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-16 12:10:49,957 INFO L85 PathProgramCache]: Analyzing trace with hash -485114690, now seen corresponding path program 1 times [2023-12-16 12:10:49,958 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-12-16 12:10:49,958 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [563589038] [2023-12-16 12:10:49,958 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-16 12:10:49,958 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2023-12-16 12:10:49,958 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2023-12-16 12:10:49,959 INFO L229 MonitoredProcess]: Starting monitored process 8 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2023-12-16 12:10:49,961 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (8)] Waiting until timeout for monitored process [2023-12-16 12:10:50,192 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 12:10:50,203 INFO L262 TraceCheckSpWp]: Trace formula consists of 343 conjuncts, 8 conjunts are in the unsatisfiable core [2023-12-16 12:10:50,206 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-16 12:10:52,868 INFO L134 CoverageAnalysis]: Checked inductivity of 2112 backedges. 46 proven. 800 refuted. 0 times theorem prover too weak. 1266 trivial. 0 not checked. [2023-12-16 12:10:52,868 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-12-16 12:10:53,474 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-12-16 12:10:53,474 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [563589038] [2023-12-16 12:10:53,475 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [563589038] provided 0 perfect and 1 imperfect interpolant sequences [2023-12-16 12:10:53,475 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleCvc4 [1529280762] [2023-12-16 12:10:53,475 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-16 12:10:53,475 INFO L173 SolverBuilder]: Constructing external solver with command: cvc4 --incremental --print-success --lang smt [2023-12-16 12:10:53,475 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/cvc4 [2023-12-16 12:10:53,481 INFO L229 MonitoredProcess]: Starting monitored process 9 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/cvc4 --incremental --print-success --lang smt (exit command is (exit), workingDir is null) [2023-12-16 12:10:53,481 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/cvc4 --incremental --print-success --lang smt (9)] Waiting until timeout for monitored process [2023-12-16 12:10:54,158 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 12:10:54,168 INFO L262 TraceCheckSpWp]: Trace formula consists of 343 conjuncts, 25 conjunts are in the unsatisfiable core [2023-12-16 12:10:54,174 INFO L285 TraceCheckSpWp]: Computing forward predicates... Received shutdown request... [2023-12-16 12:11:36,093 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 12:11:36,093 WARN L340 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/cvc4 --incremental --print-success --lang smt (9)] Timeout while monitored process is still running, waiting 1000 ms for graceful end [2023-12-16 12:11:36,093 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 (8)] Timeout while monitored process is still running, waiting 1000 ms for graceful end [2023-12-16 12:11:36,474 INFO L805 garLoopResultBuilder]: Registering result TIMEOUT for location ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION (0 of 1 remaining) [2023-12-16 12:11:36,480 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/cvc4 --incremental --print-success --lang smt (9)] Forceful destruction successful, exit code 0 [2023-12-16 12:11:36,682 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 (8)] Ended with exit code 0 [2023-12-16 12:11:36,875 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 9 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/cvc4 --incremental --print-success --lang smt,8 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2023-12-16 12:11:36,876 WARN L619 AbstractCegarLoop]: Verification canceled: while NwaCegarLoop was analyzing trace of length 209 with TraceHistMax 33,while TraceCheckSpWp was constructing forward predicates,while PolyPacSimplificationTermWalker was simplifying a ∧-18-2-3-2-2-2-4-3-2-2-3-2-2-2-3-2-2-2-2-2-2-2-3-2-2-2-2-2-2-2-2-2-2-2-2-2-2-2-2-2-2-2-2-2-2-2-2-2-2-2-2-2-2-2-2-2-3-2-2-2-4-3-3-2-2-2-2-2-2-2-2-2-2-2-3-2-2-1 term,while PolyPacSimplificationTermWalker was simplifying 2 xjuncts wrt. a ∧-56-3-2-4-3-4-3-3-2-3-2-3-2-3-2-3-2-4-3-3-2-3-2-3-2-2-2-4-3-3-2-4-3-4-3-3-2-4-3-3-2-4-3-4-3-4-3-4-3-4-3-4-3-4-3-3-2-4-3-4-3-3-2-3-2-3-2-3-2-2-2-3-2-3-2-2-1 context. [2023-12-16 12:11:36,885 INFO L445 BasicCegarLoop]: Path program histogram: [1, 1, 1, 1, 1, 1] [2023-12-16 12:11:36,887 INFO L179 ceAbstractionStarter]: Computing trace abstraction results [2023-12-16 12:11:36,890 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 16.12 12:11:36 BoogieIcfgContainer [2023-12-16 12:11:36,891 INFO L131 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2023-12-16 12:11:36,891 INFO L158 Benchmark]: Toolchain (without parser) took 67263.83ms. Allocated memory was 228.6MB in the beginning and 2.0GB in the end (delta: 1.8GB). Free memory was 176.7MB in the beginning and 761.3MB in the end (delta: -584.6MB). Peak memory consumption was 1.3GB. Max. memory is 8.0GB. [2023-12-16 12:11:36,891 INFO L158 Benchmark]: CDTParser took 0.16ms. Allocated memory is still 228.6MB. Free memory is still 184.9MB. There was no memory consumed. Max. memory is 8.0GB. [2023-12-16 12:11:36,895 INFO L158 Benchmark]: CACSL2BoogieTranslator took 317.73ms. Allocated memory is still 228.6MB. Free memory was 176.7MB in the beginning and 160.2MB in the end (delta: 16.4MB). Peak memory consumption was 15.7MB. Max. memory is 8.0GB. [2023-12-16 12:11:36,895 INFO L158 Benchmark]: Boogie Procedure Inliner took 48.45ms. Allocated memory is still 228.6MB. Free memory was 160.2MB in the beginning and 157.8MB in the end (delta: 2.5MB). Peak memory consumption was 3.1MB. Max. memory is 8.0GB. [2023-12-16 12:11:36,896 INFO L158 Benchmark]: Boogie Preprocessor took 59.44ms. Allocated memory is still 228.6MB. Free memory was 157.8MB in the beginning and 154.0MB in the end (delta: 3.8MB). Peak memory consumption was 3.1MB. Max. memory is 8.0GB. [2023-12-16 12:11:36,896 INFO L158 Benchmark]: RCFGBuilder took 915.58ms. Allocated memory was 228.6MB in the beginning and 314.6MB in the end (delta: 86.0MB). Free memory was 154.0MB in the beginning and 260.9MB in the end (delta: -106.9MB). Peak memory consumption was 15.2MB. Max. memory is 8.0GB. [2023-12-16 12:11:36,898 INFO L158 Benchmark]: TraceAbstraction took 65905.04ms. Allocated memory was 314.6MB in the beginning and 2.0GB in the end (delta: 1.7GB). Free memory was 259.8MB in the beginning and 761.3MB in the end (delta: -501.5MB). Peak memory consumption was 1.3GB. Max. memory is 8.0GB. [2023-12-16 12:11:36,900 INFO L338 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.16ms. Allocated memory is still 228.6MB. Free memory is still 184.9MB. There was no memory consumed. Max. memory is 8.0GB. * CACSL2BoogieTranslator took 317.73ms. Allocated memory is still 228.6MB. Free memory was 176.7MB in the beginning and 160.2MB in the end (delta: 16.4MB). Peak memory consumption was 15.7MB. Max. memory is 8.0GB. * Boogie Procedure Inliner took 48.45ms. Allocated memory is still 228.6MB. Free memory was 160.2MB in the beginning and 157.8MB in the end (delta: 2.5MB). Peak memory consumption was 3.1MB. Max. memory is 8.0GB. * Boogie Preprocessor took 59.44ms. Allocated memory is still 228.6MB. Free memory was 157.8MB in the beginning and 154.0MB in the end (delta: 3.8MB). Peak memory consumption was 3.1MB. Max. memory is 8.0GB. * RCFGBuilder took 915.58ms. Allocated memory was 228.6MB in the beginning and 314.6MB in the end (delta: 86.0MB). Free memory was 154.0MB in the beginning and 260.9MB in the end (delta: -106.9MB). Peak memory consumption was 15.2MB. Max. memory is 8.0GB. * TraceAbstraction took 65905.04ms. Allocated memory was 314.6MB in the beginning and 2.0GB in the end (delta: 1.7GB). Free memory was 259.8MB in the beginning and 761.3MB in the end (delta: -501.5MB). Peak memory consumption was 1.3GB. 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 209 with TraceHistMax 33,while TraceCheckSpWp was constructing forward predicates,while PolyPacSimplificationTermWalker was simplifying a ∧-18-2-3-2-2-2-4-3-2-2-3-2-2-2-3-2-2-2-2-2-2-2-3-2-2-2-2-2-2-2-2-2-2-2-2-2-2-2-2-2-2-2-2-2-2-2-2-2-2-2-2-2-2-2-2-2-3-2-2-2-4-3-3-2-2-2-2-2-2-2-2-2-2-2-3-2-2-1 term,while PolyPacSimplificationTermWalker was simplifying 2 xjuncts wrt. a ∧-56-3-2-4-3-4-3-3-2-3-2-3-2-3-2-3-2-4-3-3-2-3-2-3-2-2-2-4-3-3-2-4-3-4-3-3-2-4-3-3-2-4-3-4-3-4-3-4-3-4-3-4-3-4-3-3-2-4-3-4-3-3-2-3-2-3-2-3-2-2-2-3-2-3-2-2-1 context. - StatisticsResult: Ultimate Automizer benchmark data CFG has 2 procedures, 91 locations, 1 error locations. Started 1 CEGAR loops. OverallTime: 65.9s, OverallIterations: 6, TraceHistogramMax: 33, PathProgramHistogramMax: 1, EmptinessCheckTime: 0.0s, AutomataDifference: 9.4s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 944 SdHoareTripleChecker+Valid, 7.7s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 942 mSDsluCounter, 1955 SdHoareTripleChecker+Invalid, 7.1s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 1230 mSDsCounter, 353 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 1800 IncrementalHoareTripleChecker+Invalid, 2153 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 353 mSolverCounterUnsat, 725 mSDtfsCounter, 1800 mSolverCounterSat, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown, PredicateUnifierStatistics: 0 DeclaredPredicates, 1522 GetRequests, 1450 SyntacticMatches, 2 SemanticMatches, 70 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 420 ImplicationChecksByTransitivity, 1.9s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=312occurred in iteration=4, InterpolantAutomatonStates: 53, 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, 5 MinimizatonAttempts, 78 StatesRemovedByMinimization, 4 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.2s SsaConstructionTime, 1.5s SatisfiabilityAnalysisTime, 6.0s InterpolantComputationTime, 1239 NumberOfCodeBlocks, 1239 NumberOfCodeBlocksAsserted, 6 NumberOfCheckSat, 1438 ConstructedInterpolants, 4 QuantifiedInterpolants, 8158 SizeOfPredicates, 31 NumberOfNonLiveVariables, 2045 ConjunctsInSsa, 39 ConjunctsInUnsatCore, 7 InterpolantComputations, 3 PerfectInterpolantSequences, 14220/14784 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