/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_fillercodesize_normal_file-99.i -------------------------------------------------------------------------------- This is Ultimate 0.2.4-tmp.fs.bitabs-eval-d9c3e40-m [2023-12-16 10:43:16,738 INFO L188 SettingsManager]: Resetting all preferences to default values... [2023-12-16 10:43:16,829 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 10:43:16,834 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2023-12-16 10:43:16,835 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2023-12-16 10:43:16,862 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2023-12-16 10:43:16,863 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2023-12-16 10:43:16,863 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2023-12-16 10:43:16,864 INFO L151 SettingsManager]: Preferences of Boogie Preprocessor differ from their defaults: [2023-12-16 10:43:16,867 INFO L153 SettingsManager]: * Use memory slicer=true [2023-12-16 10:43:16,867 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2023-12-16 10:43:16,868 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2023-12-16 10:43:16,869 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2023-12-16 10:43:16,870 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2023-12-16 10:43:16,870 INFO L153 SettingsManager]: * Use SBE=true [2023-12-16 10:43:16,871 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2023-12-16 10:43:16,871 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2023-12-16 10:43:16,871 INFO L153 SettingsManager]: * sizeof long=4 [2023-12-16 10:43:16,871 INFO L153 SettingsManager]: * sizeof POINTER=4 [2023-12-16 10:43:16,872 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2023-12-16 10:43:16,873 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2023-12-16 10:43:16,873 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2023-12-16 10:43:16,873 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2023-12-16 10:43:16,873 INFO L153 SettingsManager]: * Adapt memory model on pointer casts if necessary=true [2023-12-16 10:43:16,874 INFO L153 SettingsManager]: * Use bitvectors instead of ints=true [2023-12-16 10:43:16,874 INFO L153 SettingsManager]: * Allow undefined functions=false [2023-12-16 10:43:16,874 INFO L153 SettingsManager]: * Memory model=HoenickeLindenmann_4ByteResolution [2023-12-16 10:43:16,874 INFO L153 SettingsManager]: * sizeof long double=12 [2023-12-16 10:43:16,875 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2023-12-16 10:43:16,875 INFO L153 SettingsManager]: * Use constant arrays=true [2023-12-16 10:43:16,876 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2023-12-16 10:43:16,876 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2023-12-16 10:43:16,876 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2023-12-16 10:43:16,876 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2023-12-16 10:43:16,876 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2023-12-16 10:43:16,877 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2023-12-16 10:43:16,877 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2023-12-16 10:43:16,877 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2023-12-16 10:43:16,877 INFO L153 SettingsManager]: * Trace refinement strategy=WOLF [2023-12-16 10:43:16,877 INFO L153 SettingsManager]: * Command for external solver=cvc4 --incremental --print-success --lang smt [2023-12-16 10:43:16,878 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2023-12-16 10:43:16,878 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2023-12-16 10:43:16,878 INFO L153 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2023-12-16 10:43:16,878 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2023-12-16 10:43:16,879 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2023-12-16 10:43:16,879 INFO L153 SettingsManager]: * Logic for external solver=AUFBV [2023-12-16 10:43:16,879 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release [2023-12-16 10:43:17,116 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2023-12-16 10:43:17,135 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2023-12-16 10:43:17,137 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2023-12-16 10:43:17,137 INFO L270 PluginConnector]: Initializing CDTParser... [2023-12-16 10:43:17,138 INFO L274 PluginConnector]: CDTParser initialized [2023-12-16 10:43:17,138 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/hardness-nfm22/hardness_fillercode_fillercodesize_normal_file-99.i [2023-12-16 10:43:18,388 INFO L533 CDTParser]: Created temporary CDT project at NULL [2023-12-16 10:43:18,633 INFO L384 CDTParser]: Found 1 translation units. [2023-12-16 10:43:18,634 INFO L180 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/hardness-nfm22/hardness_fillercode_fillercodesize_normal_file-99.i [2023-12-16 10:43:18,643 INFO L427 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/5ab51422c/c0ab469b412444898673a7c394a15d66/FLAGd6f19a3b0 [2023-12-16 10:43:18,662 INFO L435 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/5ab51422c/c0ab469b412444898673a7c394a15d66 [2023-12-16 10:43:18,664 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2023-12-16 10:43:18,665 INFO L133 ToolchainWalker]: Walking toolchain with 5 elements. [2023-12-16 10:43:18,668 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2023-12-16 10:43:18,668 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2023-12-16 10:43:18,672 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2023-12-16 10:43:18,673 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 16.12 10:43:18" (1/1) ... [2023-12-16 10:43:18,674 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@231fe3c2 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.12 10:43:18, skipping insertion in model container [2023-12-16 10:43:18,674 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 16.12 10:43:18" (1/1) ... [2023-12-16 10:43:18,709 INFO L177 MainTranslator]: Built tables and reachable declarations [2023-12-16 10:43:18,817 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_fillercodesize_normal_file-99.i[913,926] [2023-12-16 10:43:18,864 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-12-16 10:43:18,880 INFO L202 MainTranslator]: Completed pre-run [2023-12-16 10:43:18,891 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_fillercodesize_normal_file-99.i[913,926] [2023-12-16 10:43:18,916 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-12-16 10:43:18,940 INFO L206 MainTranslator]: Completed translation [2023-12-16 10:43:18,941 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.12 10:43:18 WrapperNode [2023-12-16 10:43:18,941 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2023-12-16 10:43:18,942 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2023-12-16 10:43:18,942 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2023-12-16 10:43:18,943 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2023-12-16 10:43:18,949 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.12 10:43:18" (1/1) ... [2023-12-16 10:43:18,959 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.12 10:43:18" (1/1) ... [2023-12-16 10:43:18,992 INFO L138 Inliner]: procedures = 27, calls = 42, calls flagged for inlining = 8, calls inlined = 8, statements flattened = 160 [2023-12-16 10:43:18,993 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2023-12-16 10:43:18,994 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2023-12-16 10:43:18,994 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2023-12-16 10:43:18,994 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2023-12-16 10:43:19,003 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.12 10:43:18" (1/1) ... [2023-12-16 10:43:19,003 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.12 10:43:18" (1/1) ... [2023-12-16 10:43:19,007 INFO L184 PluginConnector]: Executing the observer MemorySlicer from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.12 10:43:18" (1/1) ... [2023-12-16 10:43:19,019 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 10:43:19,020 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.12 10:43:18" (1/1) ... [2023-12-16 10:43:19,020 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.12 10:43:18" (1/1) ... [2023-12-16 10:43:19,035 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.12 10:43:18" (1/1) ... [2023-12-16 10:43:19,038 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.12 10:43:18" (1/1) ... [2023-12-16 10:43:19,041 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.12 10:43:18" (1/1) ... [2023-12-16 10:43:19,042 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.12 10:43:18" (1/1) ... [2023-12-16 10:43:19,046 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2023-12-16 10:43:19,047 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2023-12-16 10:43:19,047 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2023-12-16 10:43:19,047 INFO L274 PluginConnector]: RCFGBuilder initialized [2023-12-16 10:43:19,048 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.12 10:43:18" (1/1) ... [2023-12-16 10:43:19,052 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2023-12-16 10:43:19,064 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-12-16 10:43:19,075 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 10:43:19,079 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 10:43:19,126 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2023-12-16 10:43:19,127 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE1#0 [2023-12-16 10:43:19,127 INFO L130 BoogieDeclarations]: Found specification of procedure assume_abort_if_not [2023-12-16 10:43:19,129 INFO L138 BoogieDeclarations]: Found implementation of procedure assume_abort_if_not [2023-12-16 10:43:19,129 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2023-12-16 10:43:19,129 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2023-12-16 10:43:19,227 INFO L241 CfgBuilder]: Building ICFG [2023-12-16 10:43:19,229 INFO L267 CfgBuilder]: Building CFG for each procedure with an implementation [2023-12-16 10:43:21,170 INFO L282 CfgBuilder]: Performing block encoding [2023-12-16 10:43:21,223 INFO L304 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2023-12-16 10:43:21,223 INFO L309 CfgBuilder]: Removed 1 assume(true) statements. [2023-12-16 10:43:21,224 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 16.12 10:43:21 BoogieIcfgContainer [2023-12-16 10:43:21,224 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2023-12-16 10:43:21,226 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2023-12-16 10:43:21,226 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2023-12-16 10:43:21,229 INFO L274 PluginConnector]: TraceAbstraction initialized [2023-12-16 10:43:21,229 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 16.12 10:43:18" (1/3) ... [2023-12-16 10:43:21,232 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@30cb1336 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 16.12 10:43:21, skipping insertion in model container [2023-12-16 10:43:21,232 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.12 10:43:18" (2/3) ... [2023-12-16 10:43:21,232 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@30cb1336 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 16.12 10:43:21, skipping insertion in model container [2023-12-16 10:43:21,232 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 16.12 10:43:21" (3/3) ... [2023-12-16 10:43:21,233 INFO L112 eAbstractionObserver]: Analyzing ICFG hardness_fillercode_fillercodesize_normal_file-99.i [2023-12-16 10:43:21,249 INFO L204 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2023-12-16 10:43:21,249 INFO L163 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2023-12-16 10:43:21,298 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2023-12-16 10:43:21,306 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;@44449244, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2023-12-16 10:43:21,306 INFO L358 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2023-12-16 10:43:21,311 INFO L276 IsEmpty]: Start isEmpty. Operand has 71 states, 39 states have (on average 1.358974358974359) internal successors, (53), 40 states have internal predecessors, (53), 29 states have call successors, (29), 1 states have call predecessors, (29), 1 states have return successors, (29), 29 states have call predecessors, (29), 29 states have call successors, (29) [2023-12-16 10:43:21,329 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 177 [2023-12-16 10:43:21,330 INFO L187 NwaCegarLoop]: Found error trace [2023-12-16 10:43:21,330 INFO L195 NwaCegarLoop]: trace histogram [29, 29, 29, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-16 10:43:21,330 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-16 10:43:21,334 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-16 10:43:21,335 INFO L85 PathProgramCache]: Analyzing trace with hash -1726848860, now seen corresponding path program 1 times [2023-12-16 10:43:21,349 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-12-16 10:43:21,349 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [2075712062] [2023-12-16 10:43:21,350 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-16 10:43:21,350 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 10:43:21,350 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2023-12-16 10:43:21,352 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 10:43:21,358 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 10:43:21,695 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 10:43:21,709 INFO L262 TraceCheckSpWp]: Trace formula consists of 282 conjuncts, 8 conjunts are in the unsatisfiable core [2023-12-16 10:43:21,721 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-16 10:43:22,854 INFO L134 CoverageAnalysis]: Checked inductivity of 1624 backedges. 455 proven. 141 refuted. 0 times theorem prover too weak. 1028 trivial. 0 not checked. [2023-12-16 10:43:22,855 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-12-16 10:43:23,447 INFO L134 CoverageAnalysis]: Checked inductivity of 1624 backedges. 21 proven. 144 refuted. 0 times theorem prover too weak. 1459 trivial. 0 not checked. [2023-12-16 10:43:23,448 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-12-16 10:43:23,448 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [2075712062] [2023-12-16 10:43:23,449 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [2075712062] provided 0 perfect and 2 imperfect interpolant sequences [2023-12-16 10:43:23,449 INFO L185 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2023-12-16 10:43:23,449 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [9, 9] total 13 [2023-12-16 10:43:23,451 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1058896797] [2023-12-16 10:43:23,451 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2023-12-16 10:43:23,455 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 13 states [2023-12-16 10:43:23,456 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-12-16 10:43:23,478 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 13 interpolants. [2023-12-16 10:43:23,479 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=49, Invalid=107, Unknown=0, NotChecked=0, Total=156 [2023-12-16 10:43:23,481 INFO L87 Difference]: Start difference. First operand has 71 states, 39 states have (on average 1.358974358974359) internal successors, (53), 40 states have internal predecessors, (53), 29 states have call successors, (29), 1 states have call predecessors, (29), 1 states have return successors, (29), 29 states have call predecessors, (29), 29 states have call successors, (29) Second operand has 13 states, 13 states have (on average 4.0) internal successors, (52), 13 states have internal predecessors, (52), 3 states have call successors, (54), 3 states have call predecessors, (54), 7 states have return successors, (55), 3 states have call predecessors, (55), 3 states have call successors, (55) [2023-12-16 10:43:25,807 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.54s for a HTC check with result INVALID. Formula has sorts [Bool, FloatingPoint, RoundingMode, Real, BitVec], hasArrays=false, hasNonlinArith=false, quantifiers [] [2023-12-16 10:43:26,645 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-16 10:43:26,645 INFO L93 Difference]: Finished difference Result 233 states and 417 transitions. [2023-12-16 10:43:26,647 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 28 states. [2023-12-16 10:43:26,649 INFO L78 Accepts]: Start accepts. Automaton has has 13 states, 13 states have (on average 4.0) internal successors, (52), 13 states have internal predecessors, (52), 3 states have call successors, (54), 3 states have call predecessors, (54), 7 states have return successors, (55), 3 states have call predecessors, (55), 3 states have call successors, (55) Word has length 176 [2023-12-16 10:43:26,650 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-16 10:43:26,661 INFO L225 Difference]: With dead ends: 233 [2023-12-16 10:43:26,661 INFO L226 Difference]: Without dead ends: 163 [2023-12-16 10:43:26,669 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 372 GetRequests, 340 SyntacticMatches, 1 SemanticMatches, 31 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 231 ImplicationChecksByTransitivity, 0.5s TimeCoverageRelationStatistics Valid=315, Invalid=741, Unknown=0, NotChecked=0, Total=1056 [2023-12-16 10:43:26,673 INFO L413 NwaCegarLoop]: 111 mSDtfsCounter, 115 mSDsluCounter, 168 mSDsCounter, 0 mSdLazyCounter, 402 mSolverCounterSat, 82 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 119 SdHoareTripleChecker+Valid, 279 SdHoareTripleChecker+Invalid, 484 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 82 IncrementalHoareTripleChecker+Valid, 402 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.7s IncrementalHoareTripleChecker+Time [2023-12-16 10:43:26,674 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [119 Valid, 279 Invalid, 484 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [82 Valid, 402 Invalid, 0 Unknown, 0 Unchecked, 2.7s Time] [2023-12-16 10:43:26,690 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 163 states. [2023-12-16 10:43:26,738 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 163 to 79. [2023-12-16 10:43:26,739 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 79 states, 46 states have (on average 1.1956521739130435) internal successors, (55), 46 states have internal predecessors, (55), 29 states have call successors, (29), 3 states have call predecessors, (29), 3 states have return successors, (29), 29 states have call predecessors, (29), 29 states have call successors, (29) [2023-12-16 10:43:26,744 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 79 states to 79 states and 113 transitions. [2023-12-16 10:43:26,746 INFO L78 Accepts]: Start accepts. Automaton has 79 states and 113 transitions. Word has length 176 [2023-12-16 10:43:26,749 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-16 10:43:26,749 INFO L495 AbstractCegarLoop]: Abstraction has 79 states and 113 transitions. [2023-12-16 10:43:26,749 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 13 states, 13 states have (on average 4.0) internal successors, (52), 13 states have internal predecessors, (52), 3 states have call successors, (54), 3 states have call predecessors, (54), 7 states have return successors, (55), 3 states have call predecessors, (55), 3 states have call successors, (55) [2023-12-16 10:43:26,750 INFO L276 IsEmpty]: Start isEmpty. Operand 79 states and 113 transitions. [2023-12-16 10:43:26,758 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 177 [2023-12-16 10:43:26,759 INFO L187 NwaCegarLoop]: Found error trace [2023-12-16 10:43:26,759 INFO L195 NwaCegarLoop]: trace histogram [29, 29, 29, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-16 10:43:26,773 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (2)] Forceful destruction successful, exit code 0 [2023-12-16 10:43:26,971 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 10:43:26,971 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-16 10:43:26,972 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-16 10:43:26,972 INFO L85 PathProgramCache]: Analyzing trace with hash -2119875870, now seen corresponding path program 1 times [2023-12-16 10:43:26,973 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-12-16 10:43:26,973 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1118283255] [2023-12-16 10:43:26,973 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-16 10:43:26,973 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 10:43:26,974 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2023-12-16 10:43:26,974 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 10:43:26,975 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 10:43:27,281 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 10:43:27,294 INFO L262 TraceCheckSpWp]: Trace formula consists of 281 conjuncts, 6 conjunts are in the unsatisfiable core [2023-12-16 10:43:27,313 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-16 10:43:28,646 INFO L134 CoverageAnalysis]: Checked inductivity of 1624 backedges. 27 proven. 760 refuted. 0 times theorem prover too weak. 837 trivial. 0 not checked. [2023-12-16 10:43:28,647 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-12-16 10:43:29,185 INFO L134 CoverageAnalysis]: Checked inductivity of 1624 backedges. 27 proven. 57 refuted. 0 times theorem prover too weak. 1540 trivial. 0 not checked. [2023-12-16 10:43:29,185 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-12-16 10:43:29,187 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1118283255] [2023-12-16 10:43:29,188 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1118283255] provided 0 perfect and 2 imperfect interpolant sequences [2023-12-16 10:43:29,188 INFO L185 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2023-12-16 10:43:29,188 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [6, 6] total 11 [2023-12-16 10:43:29,189 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2018765435] [2023-12-16 10:43:29,189 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2023-12-16 10:43:29,192 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 11 states [2023-12-16 10:43:29,193 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-12-16 10:43:29,194 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2023-12-16 10:43:29,194 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=38, Invalid=72, Unknown=0, NotChecked=0, Total=110 [2023-12-16 10:43:29,195 INFO L87 Difference]: Start difference. First operand 79 states and 113 transitions. Second operand has 11 states, 11 states have (on average 6.545454545454546) internal successors, (72), 11 states have internal predecessors, (72), 4 states have call successors, (58), 3 states have call predecessors, (58), 5 states have return successors, (58), 4 states have call predecessors, (58), 4 states have call successors, (58) [2023-12-16 10:43:32,714 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.88s for a HTC check with result INVALID. Formula has sorts [Bool, FloatingPoint, RoundingMode, Real, BitVec], hasArrays=false, hasNonlinArith=false, quantifiers [] [2023-12-16 10:43:33,118 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-16 10:43:33,119 INFO L93 Difference]: Finished difference Result 209 states and 284 transitions. [2023-12-16 10:43:33,119 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2023-12-16 10:43:33,120 INFO L78 Accepts]: Start accepts. Automaton has has 11 states, 11 states have (on average 6.545454545454546) internal successors, (72), 11 states have internal predecessors, (72), 4 states have call successors, (58), 3 states have call predecessors, (58), 5 states have return successors, (58), 4 states have call predecessors, (58), 4 states have call successors, (58) Word has length 176 [2023-12-16 10:43:33,121 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-16 10:43:33,122 INFO L225 Difference]: With dead ends: 209 [2023-12-16 10:43:33,122 INFO L226 Difference]: Without dead ends: 131 [2023-12-16 10:43:33,123 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 361 GetRequests, 343 SyntacticMatches, 0 SemanticMatches, 18 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 40 ImplicationChecksByTransitivity, 0.5s TimeCoverageRelationStatistics Valid=138, Invalid=242, Unknown=0, NotChecked=0, Total=380 [2023-12-16 10:43:33,124 INFO L413 NwaCegarLoop]: 80 mSDtfsCounter, 157 mSDsluCounter, 113 mSDsCounter, 0 mSdLazyCounter, 280 mSolverCounterSat, 118 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 3.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 158 SdHoareTripleChecker+Valid, 193 SdHoareTripleChecker+Invalid, 398 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 118 IncrementalHoareTripleChecker+Valid, 280 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 3.6s IncrementalHoareTripleChecker+Time [2023-12-16 10:43:33,124 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [158 Valid, 193 Invalid, 398 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [118 Valid, 280 Invalid, 0 Unknown, 0 Unchecked, 3.6s Time] [2023-12-16 10:43:33,125 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 131 states. [2023-12-16 10:43:33,150 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 131 to 116. [2023-12-16 10:43:33,151 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 116 states, 70 states have (on average 1.1571428571428573) internal successors, (81), 71 states have internal predecessors, (81), 38 states have call successors, (38), 7 states have call predecessors, (38), 7 states have return successors, (38), 37 states have call predecessors, (38), 38 states have call successors, (38) [2023-12-16 10:43:33,153 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 116 states to 116 states and 157 transitions. [2023-12-16 10:43:33,153 INFO L78 Accepts]: Start accepts. Automaton has 116 states and 157 transitions. Word has length 176 [2023-12-16 10:43:33,155 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-16 10:43:33,155 INFO L495 AbstractCegarLoop]: Abstraction has 116 states and 157 transitions. [2023-12-16 10:43:33,157 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 11 states, 11 states have (on average 6.545454545454546) internal successors, (72), 11 states have internal predecessors, (72), 4 states have call successors, (58), 3 states have call predecessors, (58), 5 states have return successors, (58), 4 states have call predecessors, (58), 4 states have call successors, (58) [2023-12-16 10:43:33,158 INFO L276 IsEmpty]: Start isEmpty. Operand 116 states and 157 transitions. [2023-12-16 10:43:33,161 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 178 [2023-12-16 10:43:33,161 INFO L187 NwaCegarLoop]: Found error trace [2023-12-16 10:43:33,161 INFO L195 NwaCegarLoop]: trace histogram [29, 29, 29, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-16 10:43:33,172 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 (3)] Ended with exit code 0 [2023-12-16 10:43:33,372 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 10:43:33,372 INFO L420 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-16 10:43:33,373 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-16 10:43:33,373 INFO L85 PathProgramCache]: Analyzing trace with hash 363301400, now seen corresponding path program 1 times [2023-12-16 10:43:33,374 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-12-16 10:43:33,376 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [525454131] [2023-12-16 10:43:33,376 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-16 10:43:33,377 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 10:43:33,377 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2023-12-16 10:43:33,379 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 10:43:33,393 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 10:43:33,654 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 10:43:33,666 INFO L262 TraceCheckSpWp]: Trace formula consists of 282 conjuncts, 3 conjunts are in the unsatisfiable core [2023-12-16 10:43:33,670 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-16 10:43:34,200 INFO L134 CoverageAnalysis]: Checked inductivity of 1624 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 1624 trivial. 0 not checked. [2023-12-16 10:43:34,200 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-12-16 10:43:34,201 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-12-16 10:43:34,201 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [525454131] [2023-12-16 10:43:34,201 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [525454131] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-16 10:43:34,201 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-16 10:43:34,201 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2023-12-16 10:43:34,201 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [786590549] [2023-12-16 10:43:34,201 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-16 10:43:34,202 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2023-12-16 10:43:34,202 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-12-16 10:43:34,203 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2023-12-16 10:43:34,203 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2023-12-16 10:43:34,203 INFO L87 Difference]: Start difference. First operand 116 states and 157 transitions. Second operand has 4 states, 4 states have (on average 8.75) internal successors, (35), 3 states have internal predecessors, (35), 1 states have call successors, (29), 1 states have call predecessors, (29), 1 states have return successors, (29), 1 states have call predecessors, (29), 1 states have call successors, (29) [2023-12-16 10:43:35,657 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.36s for a HTC check with result INVALID. Formula has sorts [Bool, FloatingPoint, RoundingMode, Real, BitVec], hasArrays=false, hasNonlinArith=false, quantifiers [] [2023-12-16 10:43:35,768 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-16 10:43:35,768 INFO L93 Difference]: Finished difference Result 346 states and 469 transitions. [2023-12-16 10:43:35,771 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2023-12-16 10:43:35,771 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 8.75) internal successors, (35), 3 states have internal predecessors, (35), 1 states have call successors, (29), 1 states have call predecessors, (29), 1 states have return successors, (29), 1 states have call predecessors, (29), 1 states have call successors, (29) Word has length 177 [2023-12-16 10:43:35,772 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-16 10:43:35,775 INFO L225 Difference]: With dead ends: 346 [2023-12-16 10:43:35,776 INFO L226 Difference]: Without dead ends: 231 [2023-12-16 10:43:35,776 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 177 GetRequests, 174 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2023-12-16 10:43:35,777 INFO L413 NwaCegarLoop]: 95 mSDtfsCounter, 21 mSDsluCounter, 188 mSDsCounter, 0 mSdLazyCounter, 25 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 21 SdHoareTripleChecker+Valid, 283 SdHoareTripleChecker+Invalid, 25 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 25 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.5s IncrementalHoareTripleChecker+Time [2023-12-16 10:43:35,778 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [21 Valid, 283 Invalid, 25 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 25 Invalid, 0 Unknown, 0 Unchecked, 1.5s Time] [2023-12-16 10:43:35,779 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 231 states. [2023-12-16 10:43:35,820 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 231 to 229. [2023-12-16 10:43:35,821 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 229 states, 138 states have (on average 1.1521739130434783) internal successors, (159), 140 states have internal predecessors, (159), 76 states have call successors, (76), 14 states have call predecessors, (76), 14 states have return successors, (76), 74 states have call predecessors, (76), 76 states have call successors, (76) [2023-12-16 10:43:35,822 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 229 states to 229 states and 311 transitions. [2023-12-16 10:43:35,823 INFO L78 Accepts]: Start accepts. Automaton has 229 states and 311 transitions. Word has length 177 [2023-12-16 10:43:35,823 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-16 10:43:35,823 INFO L495 AbstractCegarLoop]: Abstraction has 229 states and 311 transitions. [2023-12-16 10:43:35,823 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 8.75) internal successors, (35), 3 states have internal predecessors, (35), 1 states have call successors, (29), 1 states have call predecessors, (29), 1 states have return successors, (29), 1 states have call predecessors, (29), 1 states have call successors, (29) [2023-12-16 10:43:35,824 INFO L276 IsEmpty]: Start isEmpty. Operand 229 states and 311 transitions. [2023-12-16 10:43:35,825 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 178 [2023-12-16 10:43:35,825 INFO L187 NwaCegarLoop]: Found error trace [2023-12-16 10:43:35,825 INFO L195 NwaCegarLoop]: trace histogram [29, 29, 29, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-16 10:43:35,837 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 10:43:36,037 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 10:43:36,037 INFO L420 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-16 10:43:36,038 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-16 10:43:36,038 INFO L85 PathProgramCache]: Analyzing trace with hash 420559702, now seen corresponding path program 1 times [2023-12-16 10:43:36,042 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-12-16 10:43:36,042 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [956917153] [2023-12-16 10:43:36,043 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-16 10:43:36,043 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 10:43:36,043 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2023-12-16 10:43:36,044 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 10:43:36,076 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 10:43:36,745 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 10:43:36,761 INFO L262 TraceCheckSpWp]: Trace formula consists of 282 conjuncts, 55 conjunts are in the unsatisfiable core [2023-12-16 10:43:36,768 INFO L285 TraceCheckSpWp]: Computing forward predicates... Received shutdown request... [2023-12-16 10:44:28,963 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 10:44:28,966 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 (5)] Timeout while monitored process is still running, waiting 1000 ms for graceful end [2023-12-16 10:44:29,469 INFO L805 garLoopResultBuilder]: Registering result TIMEOUT for location ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION (0 of 1 remaining) [2023-12-16 10:44:29,478 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 10:44:29,671 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 10:44:29,671 WARN L619 AbstractCegarLoop]: Verification canceled: while NwaCegarLoop was analyzing trace of length 178 with TraceHistMax 29,while TraceCheckSpWp was constructing forward predicates,while PolyPacSimplificationTermWalker was simplifying a ∧-2-1 term,while PolyPacSimplificationTermWalker was simplifying 2 xjuncts wrt. a ∧-27-2-2-2-2-1 context. [2023-12-16 10:44:29,675 INFO L445 BasicCegarLoop]: Path program histogram: [1, 1, 1, 1] [2023-12-16 10:44:29,677 INFO L179 ceAbstractionStarter]: Computing trace abstraction results [2023-12-16 10:44:29,682 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 16.12 10:44:29 BoogieIcfgContainer [2023-12-16 10:44:29,683 INFO L131 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2023-12-16 10:44:29,683 INFO L158 Benchmark]: Toolchain (without parser) took 71017.70ms. Allocated memory was 317.7MB in the beginning and 412.1MB in the end (delta: 94.4MB). Free memory was 264.1MB in the beginning and 243.1MB in the end (delta: 21.0MB). Peak memory consumption was 115.9MB. Max. memory is 8.0GB. [2023-12-16 10:44:29,685 INFO L158 Benchmark]: CDTParser took 0.52ms. Allocated memory is still 201.3MB. Free memory is still 148.6MB. There was no memory consumed. Max. memory is 8.0GB. [2023-12-16 10:44:29,686 INFO L158 Benchmark]: CACSL2BoogieTranslator took 273.37ms. Allocated memory is still 317.7MB. Free memory was 264.1MB in the beginning and 248.9MB in the end (delta: 15.2MB). Peak memory consumption was 14.7MB. Max. memory is 8.0GB. [2023-12-16 10:44:29,687 INFO L158 Benchmark]: Boogie Procedure Inliner took 50.51ms. Allocated memory is still 317.7MB. Free memory was 248.9MB in the beginning and 246.8MB in the end (delta: 2.1MB). Peak memory consumption was 2.1MB. Max. memory is 8.0GB. [2023-12-16 10:44:29,687 INFO L158 Benchmark]: Boogie Preprocessor took 52.58ms. Allocated memory is still 317.7MB. Free memory was 246.8MB in the beginning and 243.1MB in the end (delta: 3.7MB). Peak memory consumption was 4.2MB. Max. memory is 8.0GB. [2023-12-16 10:44:29,688 INFO L158 Benchmark]: RCFGBuilder took 2177.65ms. Allocated memory is still 317.7MB. Free memory was 243.1MB in the beginning and 219.5MB in the end (delta: 23.6MB). Peak memory consumption was 23.1MB. Max. memory is 8.0GB. [2023-12-16 10:44:29,689 INFO L158 Benchmark]: TraceAbstraction took 68456.38ms. Allocated memory was 317.7MB in the beginning and 412.1MB in the end (delta: 94.4MB). Free memory was 219.0MB in the beginning and 243.1MB in the end (delta: -24.1MB). Peak memory consumption was 70.8MB. Max. memory is 8.0GB. [2023-12-16 10:44:29,691 INFO L338 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.52ms. Allocated memory is still 201.3MB. Free memory is still 148.6MB. There was no memory consumed. Max. memory is 8.0GB. * CACSL2BoogieTranslator took 273.37ms. Allocated memory is still 317.7MB. Free memory was 264.1MB in the beginning and 248.9MB in the end (delta: 15.2MB). Peak memory consumption was 14.7MB. Max. memory is 8.0GB. * Boogie Procedure Inliner took 50.51ms. Allocated memory is still 317.7MB. Free memory was 248.9MB in the beginning and 246.8MB in the end (delta: 2.1MB). Peak memory consumption was 2.1MB. Max. memory is 8.0GB. * Boogie Preprocessor took 52.58ms. Allocated memory is still 317.7MB. Free memory was 246.8MB in the beginning and 243.1MB in the end (delta: 3.7MB). Peak memory consumption was 4.2MB. Max. memory is 8.0GB. * RCFGBuilder took 2177.65ms. Allocated memory is still 317.7MB. Free memory was 243.1MB in the beginning and 219.5MB in the end (delta: 23.6MB). Peak memory consumption was 23.1MB. Max. memory is 8.0GB. * TraceAbstraction took 68456.38ms. Allocated memory was 317.7MB in the beginning and 412.1MB in the end (delta: 94.4MB). Free memory was 219.0MB in the beginning and 243.1MB in the end (delta: -24.1MB). Peak memory consumption was 70.8MB. Max. memory is 8.0GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - StatisticsResult: ErrorAutomatonStatistics NumberErrorTraces: 0, NumberStatementsAllTraces: 0, NumberRelevantStatements: 0, 0.0s ErrorAutomatonConstructionTimeTotal, 0.0s FaulLocalizationTime, NumberStatementsFirstTrace: -1, TraceLengthAvg: 0, 0.0s ErrorAutomatonConstructionTimeAvg, 0.0s ErrorAutomatonDifferenceTimeAvg, 0.0s ErrorAutomatonDifferenceTimeTotal, NumberOfNoEnhancement: 0, NumberOfFiniteEnhancement: 0, NumberOfInfiniteEnhancement: 0 - TimeoutResultAtElement [Line: 19]: Timeout (TraceAbstraction) Unable to prove that a call to reach_error is unreachable (line 19). Cancelled while NwaCegarLoop was analyzing trace of length 178 with TraceHistMax 29,while TraceCheckSpWp was constructing forward predicates,while PolyPacSimplificationTermWalker was simplifying a ∧-2-1 term,while PolyPacSimplificationTermWalker was simplifying 2 xjuncts wrt. a ∧-27-2-2-2-2-1 context. - StatisticsResult: Ultimate Automizer benchmark data CFG has 2 procedures, 71 locations, 1 error locations. Started 1 CEGAR loops. OverallTime: 68.4s, OverallIterations: 4, TraceHistogramMax: 29, PathProgramHistogramMax: 1, EmptinessCheckTime: 0.0s, AutomataDifference: 8.7s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 298 SdHoareTripleChecker+Valid, 7.8s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 293 mSDsluCounter, 755 SdHoareTripleChecker+Invalid, 7.4s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 469 mSDsCounter, 200 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 707 IncrementalHoareTripleChecker+Invalid, 907 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 200 mSolverCounterUnsat, 286 mSDtfsCounter, 707 mSolverCounterSat, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown, PredicateUnifierStatistics: 0 DeclaredPredicates, 910 GetRequests, 857 SyntacticMatches, 1 SemanticMatches, 52 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 271 ImplicationChecksByTransitivity, 1.0s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=229occurred in iteration=3, InterpolantAutomatonStates: 45, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: 0.1s AutomataMinimizationTime, 3 MinimizatonAttempts, 101 StatesRemovedByMinimization, 3 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.1s SsaConstructionTime, 0.8s SatisfiabilityAnalysisTime, 4.2s InterpolantComputationTime, 529 NumberOfCodeBlocks, 529 NumberOfCodeBlocksAsserted, 3 NumberOfCheckSat, 876 ConstructedInterpolants, 0 QuantifiedInterpolants, 4539 SizeOfPredicates, 13 NumberOfNonLiveVariables, 845 ConjunctsInSsa, 17 ConjunctsInUnsatCore, 5 InterpolantComputations, 1 PerfectInterpolantSequences, 7018/8120 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