/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_ps-cn-10_file-21.i -------------------------------------------------------------------------------- This is Ultimate 0.2.4-tmp.fs.bitabs-eval-d9c3e40-m [2023-12-23 01:02:47,938 INFO L188 SettingsManager]: Resetting all preferences to default values... [2023-12-23 01:02:48,017 INFO L114 SettingsManager]: Loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/settings/default/automizer/svcomp-Reach-32bit-Automizer_Bitvector.epf [2023-12-23 01:02:48,021 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2023-12-23 01:02:48,022 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2023-12-23 01:02:48,044 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2023-12-23 01:02:48,045 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2023-12-23 01:02:48,045 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2023-12-23 01:02:48,046 INFO L151 SettingsManager]: Preferences of Boogie Preprocessor differ from their defaults: [2023-12-23 01:02:48,048 INFO L153 SettingsManager]: * Use memory slicer=true [2023-12-23 01:02:48,049 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2023-12-23 01:02:48,049 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2023-12-23 01:02:48,049 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2023-12-23 01:02:48,050 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2023-12-23 01:02:48,050 INFO L153 SettingsManager]: * Use SBE=true [2023-12-23 01:02:48,051 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2023-12-23 01:02:48,051 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2023-12-23 01:02:48,051 INFO L153 SettingsManager]: * sizeof long=4 [2023-12-23 01:02:48,051 INFO L153 SettingsManager]: * sizeof POINTER=4 [2023-12-23 01:02:48,051 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2023-12-23 01:02:48,051 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2023-12-23 01:02:48,052 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2023-12-23 01:02:48,052 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2023-12-23 01:02:48,052 INFO L153 SettingsManager]: * Adapt memory model on pointer casts if necessary=true [2023-12-23 01:02:48,052 INFO L153 SettingsManager]: * Use bitvectors instead of ints=true [2023-12-23 01:02:48,052 INFO L153 SettingsManager]: * Allow undefined functions=false [2023-12-23 01:02:48,053 INFO L153 SettingsManager]: * Memory model=HoenickeLindenmann_4ByteResolution [2023-12-23 01:02:48,053 INFO L153 SettingsManager]: * sizeof long double=12 [2023-12-23 01:02:48,053 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2023-12-23 01:02:48,053 INFO L153 SettingsManager]: * Use constant arrays=true [2023-12-23 01:02:48,054 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2023-12-23 01:02:48,054 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2023-12-23 01:02:48,054 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2023-12-23 01:02:48,054 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2023-12-23 01:02:48,054 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2023-12-23 01:02:48,054 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2023-12-23 01:02:48,054 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2023-12-23 01:02:48,054 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2023-12-23 01:02:48,055 INFO L153 SettingsManager]: * Trace refinement strategy=WOLF [2023-12-23 01:02:48,055 INFO L153 SettingsManager]: * Command for external solver=cvc4 --incremental --print-success --lang smt [2023-12-23 01:02:48,055 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2023-12-23 01:02:48,055 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2023-12-23 01:02:48,055 INFO L153 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2023-12-23 01:02:48,055 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2023-12-23 01:02:48,056 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2023-12-23 01:02:48,056 INFO L153 SettingsManager]: * Logic for external solver=AUFBV [2023-12-23 01:02:48,056 INFO L153 SettingsManager]: * Looper check in Petri net analysis=SEMANTIC WARNING: An illegal reflective access operation has occurred WARNING: Illegal reflective access by com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 (file:/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/plugins/com.sun.xml.bind_2.2.0.v201505121915.jar) to method java.lang.ClassLoader.defineClass(java.lang.String,byte[],int,int) WARNING: Please consider reporting this to the maintainers of com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release [2023-12-23 01:02:48,199 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2023-12-23 01:02:48,219 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2023-12-23 01:02:48,220 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2023-12-23 01:02:48,221 INFO L270 PluginConnector]: Initializing CDTParser... [2023-12-23 01:02:48,221 INFO L274 PluginConnector]: CDTParser initialized [2023-12-23 01:02:48,223 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/hardness-nfm22/hardness_fillercode_fillercodesize_ps-cn-10_file-21.i [2023-12-23 01:02:49,458 INFO L533 CDTParser]: Created temporary CDT project at NULL [2023-12-23 01:02:49,676 INFO L384 CDTParser]: Found 1 translation units. [2023-12-23 01:02:49,676 INFO L180 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/hardness-nfm22/hardness_fillercode_fillercodesize_ps-cn-10_file-21.i [2023-12-23 01:02:49,684 INFO L427 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/11f003501/90438289638041008e3386b8a3a96305/FLAGfeae2e05d [2023-12-23 01:02:49,701 INFO L435 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/11f003501/90438289638041008e3386b8a3a96305 [2023-12-23 01:02:49,703 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2023-12-23 01:02:49,704 INFO L133 ToolchainWalker]: Walking toolchain with 5 elements. [2023-12-23 01:02:49,707 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2023-12-23 01:02:49,707 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2023-12-23 01:02:49,711 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2023-12-23 01:02:49,711 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 23.12 01:02:49" (1/1) ... [2023-12-23 01:02:49,712 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@5e9404bf and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.12 01:02:49, skipping insertion in model container [2023-12-23 01:02:49,712 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 23.12 01:02:49" (1/1) ... [2023-12-23 01:02:49,749 INFO L177 MainTranslator]: Built tables and reachable declarations [2023-12-23 01:02:49,876 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_ps-cn-10_file-21.i[915,928] [2023-12-23 01:02:49,920 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-12-23 01:02:49,931 INFO L202 MainTranslator]: Completed pre-run [2023-12-23 01:02:49,941 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_ps-cn-10_file-21.i[915,928] [2023-12-23 01:02:49,973 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-12-23 01:02:49,986 INFO L206 MainTranslator]: Completed translation [2023-12-23 01:02:49,987 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.12 01:02:49 WrapperNode [2023-12-23 01:02:49,987 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2023-12-23 01:02:49,987 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2023-12-23 01:02:49,988 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2023-12-23 01:02:49,988 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2023-12-23 01:02:49,994 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.12 01:02:49" (1/1) ... [2023-12-23 01:02:50,011 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.12 01:02:49" (1/1) ... [2023-12-23 01:02:50,042 INFO L138 Inliner]: procedures = 27, calls = 44, calls flagged for inlining = 8, calls inlined = 8, statements flattened = 185 [2023-12-23 01:02:50,042 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2023-12-23 01:02:50,043 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2023-12-23 01:02:50,043 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2023-12-23 01:02:50,043 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2023-12-23 01:02:50,053 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.12 01:02:49" (1/1) ... [2023-12-23 01:02:50,054 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.12 01:02:49" (1/1) ... [2023-12-23 01:02:50,057 INFO L184 PluginConnector]: Executing the observer MemorySlicer from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.12 01:02:49" (1/1) ... [2023-12-23 01:02:50,077 INFO L175 MemorySlicer]: Split 2 memory accesses to 1 slices as follows [2]. 100 percent of accesses are in the largest equivalence class. The 2 initializations are split as follows [2]. The 0 writes are split as follows [0]. [2023-12-23 01:02:50,078 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.12 01:02:49" (1/1) ... [2023-12-23 01:02:50,078 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.12 01:02:49" (1/1) ... [2023-12-23 01:02:50,085 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.12 01:02:49" (1/1) ... [2023-12-23 01:02:50,097 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.12 01:02:49" (1/1) ... [2023-12-23 01:02:50,114 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.12 01:02:49" (1/1) ... [2023-12-23 01:02:50,116 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.12 01:02:49" (1/1) ... [2023-12-23 01:02:50,129 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2023-12-23 01:02:50,130 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2023-12-23 01:02:50,130 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2023-12-23 01:02:50,130 INFO L274 PluginConnector]: RCFGBuilder initialized [2023-12-23 01:02:50,131 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.12 01:02:49" (1/1) ... [2023-12-23 01:02:50,134 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2023-12-23 01:02:50,141 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-12-23 01:02:50,174 INFO L229 MonitoredProcess]: Starting monitored process 1 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (exit command is (exit), workingDir is null) [2023-12-23 01:02:50,176 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (1)] Waiting until timeout for monitored process [2023-12-23 01:02:50,205 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2023-12-23 01:02:50,205 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE1#0 [2023-12-23 01:02:50,205 INFO L130 BoogieDeclarations]: Found specification of procedure assume_abort_if_not [2023-12-23 01:02:50,206 INFO L138 BoogieDeclarations]: Found implementation of procedure assume_abort_if_not [2023-12-23 01:02:50,206 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2023-12-23 01:02:50,207 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2023-12-23 01:02:50,295 INFO L241 CfgBuilder]: Building ICFG [2023-12-23 01:02:50,297 INFO L267 CfgBuilder]: Building CFG for each procedure with an implementation [2023-12-23 01:02:51,679 INFO L282 CfgBuilder]: Performing block encoding [2023-12-23 01:02:51,763 INFO L304 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2023-12-23 01:02:51,774 INFO L309 CfgBuilder]: Removed 1 assume(true) statements. [2023-12-23 01:02:51,774 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 23.12 01:02:51 BoogieIcfgContainer [2023-12-23 01:02:51,774 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2023-12-23 01:02:51,778 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2023-12-23 01:02:51,778 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2023-12-23 01:02:51,781 INFO L274 PluginConnector]: TraceAbstraction initialized [2023-12-23 01:02:51,781 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 23.12 01:02:49" (1/3) ... [2023-12-23 01:02:51,782 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@2f1aee38 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 23.12 01:02:51, skipping insertion in model container [2023-12-23 01:02:51,782 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.12 01:02:49" (2/3) ... [2023-12-23 01:02:51,782 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@2f1aee38 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 23.12 01:02:51, skipping insertion in model container [2023-12-23 01:02:51,782 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 23.12 01:02:51" (3/3) ... [2023-12-23 01:02:51,784 INFO L112 eAbstractionObserver]: Analyzing ICFG hardness_fillercode_fillercodesize_ps-cn-10_file-21.i [2023-12-23 01:02:51,800 INFO L204 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2023-12-23 01:02:51,801 INFO L163 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2023-12-23 01:02:51,860 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2023-12-23 01:02:51,866 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;@3ea5f93b, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2023-12-23 01:02:51,866 INFO L358 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2023-12-23 01:02:51,871 INFO L276 IsEmpty]: Start isEmpty. Operand has 74 states, 40 states have (on average 1.325) internal successors, (53), 41 states have internal predecessors, (53), 31 states have call successors, (31), 1 states have call predecessors, (31), 1 states have return successors, (31), 31 states have call predecessors, (31), 31 states have call successors, (31) [2023-12-23 01:02:51,886 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 190 [2023-12-23 01:02:51,886 INFO L187 NwaCegarLoop]: Found error trace [2023-12-23 01:02:51,900 INFO L195 NwaCegarLoop]: trace histogram [31, 31, 31, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-23 01:02:51,900 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-23 01:02:51,907 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-23 01:02:51,908 INFO L85 PathProgramCache]: Analyzing trace with hash -1166181216, now seen corresponding path program 1 times [2023-12-23 01:02:51,924 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-12-23 01:02:51,925 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [457364096] [2023-12-23 01:02:51,925 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-23 01:02:51,926 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2023-12-23 01:02:51,926 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2023-12-23 01:02:51,928 INFO L229 MonitoredProcess]: Starting monitored process 2 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2023-12-23 01:02:51,945 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (2)] Waiting until timeout for monitored process [2023-12-23 01:02:56,574 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-23 01:02:56,606 INFO L262 TraceCheckSpWp]: Trace formula consists of 316 conjuncts, 8 conjunts are in the unsatisfiable core [2023-12-23 01:02:56,614 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-23 01:02:57,451 INFO L134 CoverageAnalysis]: Checked inductivity of 1860 backedges. 842 proven. 33 refuted. 0 times theorem prover too weak. 985 trivial. 0 not checked. [2023-12-23 01:02:57,451 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-12-23 01:03:01,677 INFO L134 CoverageAnalysis]: Checked inductivity of 1860 backedges. 66 proven. 24 refuted. 0 times theorem prover too weak. 1770 trivial. 0 not checked. [2023-12-23 01:03:01,677 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-12-23 01:03:01,678 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [457364096] [2023-12-23 01:03:01,678 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [457364096] provided 0 perfect and 2 imperfect interpolant sequences [2023-12-23 01:03:01,678 INFO L185 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2023-12-23 01:03:01,678 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [9, 7] total 13 [2023-12-23 01:03:01,679 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1635021084] [2023-12-23 01:03:01,680 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2023-12-23 01:03:01,683 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 13 states [2023-12-23 01:03:01,683 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-12-23 01:03:01,719 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 13 interpolants. [2023-12-23 01:03:01,720 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=51, Invalid=105, Unknown=0, NotChecked=0, Total=156 [2023-12-23 01:03:01,722 INFO L87 Difference]: Start difference. First operand has 74 states, 40 states have (on average 1.325) internal successors, (53), 41 states have internal predecessors, (53), 31 states have call successors, (31), 1 states have call predecessors, (31), 1 states have return successors, (31), 31 states have call predecessors, (31), 31 states have call successors, (31) Second operand has 13 states, 13 states have (on average 4.3076923076923075) internal successors, (56), 13 states have internal predecessors, (56), 4 states have call successors, (39), 3 states have call predecessors, (39), 6 states have return successors, (40), 4 states have call predecessors, (40), 4 states have call successors, (40) [2023-12-23 01:03:07,798 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.20s for a HTC check with result INVALID. Formula has sorts [Bool, FloatingPoint, RoundingMode, BitVec], hasArrays=false, hasNonlinArith=false, quantifiers [] [2023-12-23 01:03:11,282 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-23 01:03:11,283 INFO L93 Difference]: Finished difference Result 205 states and 369 transitions. [2023-12-23 01:03:11,284 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 20 states. [2023-12-23 01:03:11,285 INFO L78 Accepts]: Start accepts. Automaton has has 13 states, 13 states have (on average 4.3076923076923075) internal successors, (56), 13 states have internal predecessors, (56), 4 states have call successors, (39), 3 states have call predecessors, (39), 6 states have return successors, (40), 4 states have call predecessors, (40), 4 states have call successors, (40) Word has length 189 [2023-12-23 01:03:11,286 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-23 01:03:11,291 INFO L225 Difference]: With dead ends: 205 [2023-12-23 01:03:11,292 INFO L226 Difference]: Without dead ends: 132 [2023-12-23 01:03:11,295 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 388 GetRequests, 364 SyntacticMatches, 1 SemanticMatches, 23 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 106 ImplicationChecksByTransitivity, 7.8s TimeCoverageRelationStatistics Valid=206, Invalid=394, Unknown=0, NotChecked=0, Total=600 [2023-12-23 01:03:11,299 INFO L413 NwaCegarLoop]: 109 mSDtfsCounter, 154 mSDsluCounter, 128 mSDsCounter, 0 mSdLazyCounter, 384 mSolverCounterSat, 100 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 4.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 176 SdHoareTripleChecker+Valid, 237 SdHoareTripleChecker+Invalid, 484 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 100 IncrementalHoareTripleChecker+Valid, 384 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 4.4s IncrementalHoareTripleChecker+Time [2023-12-23 01:03:11,301 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [176 Valid, 237 Invalid, 484 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [100 Valid, 384 Invalid, 0 Unknown, 0 Unchecked, 4.4s Time] [2023-12-23 01:03:11,314 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 132 states. [2023-12-23 01:03:11,351 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 132 to 84. [2023-12-23 01:03:11,352 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 84 states, 48 states have (on average 1.1666666666666667) internal successors, (56), 48 states have internal predecessors, (56), 31 states have call successors, (31), 4 states have call predecessors, (31), 4 states have return successors, (31), 31 states have call predecessors, (31), 31 states have call successors, (31) [2023-12-23 01:03:11,357 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 84 states to 84 states and 118 transitions. [2023-12-23 01:03:11,358 INFO L78 Accepts]: Start accepts. Automaton has 84 states and 118 transitions. Word has length 189 [2023-12-23 01:03:11,361 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-23 01:03:11,361 INFO L495 AbstractCegarLoop]: Abstraction has 84 states and 118 transitions. [2023-12-23 01:03:11,362 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 13 states, 13 states have (on average 4.3076923076923075) internal successors, (56), 13 states have internal predecessors, (56), 4 states have call successors, (39), 3 states have call predecessors, (39), 6 states have return successors, (40), 4 states have call predecessors, (40), 4 states have call successors, (40) [2023-12-23 01:03:11,362 INFO L276 IsEmpty]: Start isEmpty. Operand 84 states and 118 transitions. [2023-12-23 01:03:11,369 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 190 [2023-12-23 01:03:11,370 INFO L187 NwaCegarLoop]: Found error trace [2023-12-23 01:03:11,370 INFO L195 NwaCegarLoop]: trace histogram [31, 31, 31, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-23 01:03:11,382 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 [2023-12-23 01:03:11,578 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2023-12-23 01:03:11,578 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-23 01:03:11,579 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-23 01:03:11,579 INFO L85 PathProgramCache]: Analyzing trace with hash 1848922402, now seen corresponding path program 1 times [2023-12-23 01:03:11,579 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-12-23 01:03:11,580 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [815854134] [2023-12-23 01:03:11,580 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-23 01:03:11,580 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2023-12-23 01:03:11,580 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2023-12-23 01:03:11,586 INFO L229 MonitoredProcess]: Starting monitored process 3 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2023-12-23 01:03:11,587 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (3)] Waiting until timeout for monitored process [2023-12-23 01:03:12,154 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-23 01:03:12,178 INFO L262 TraceCheckSpWp]: Trace formula consists of 315 conjuncts, 44 conjunts are in the unsatisfiable core [2023-12-23 01:03:12,187 INFO L285 TraceCheckSpWp]: Computing forward predicates...