/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_operatoramount_amount500_file-64.i -------------------------------------------------------------------------------- This is Ultimate 0.2.4-tmp.fs.bitabs-eval-d9c3e40-m [2023-12-16 15:03:44,682 INFO L188 SettingsManager]: Resetting all preferences to default values... [2023-12-16 15:03:44,747 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 15:03:44,751 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2023-12-16 15:03:44,751 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2023-12-16 15:03:44,772 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2023-12-16 15:03:44,772 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2023-12-16 15:03:44,773 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2023-12-16 15:03:44,773 INFO L151 SettingsManager]: Preferences of Boogie Preprocessor differ from their defaults: [2023-12-16 15:03:44,776 INFO L153 SettingsManager]: * Use memory slicer=true [2023-12-16 15:03:44,776 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2023-12-16 15:03:44,776 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2023-12-16 15:03:44,777 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2023-12-16 15:03:44,778 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2023-12-16 15:03:44,778 INFO L153 SettingsManager]: * Use SBE=true [2023-12-16 15:03:44,778 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2023-12-16 15:03:44,778 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2023-12-16 15:03:44,779 INFO L153 SettingsManager]: * sizeof long=4 [2023-12-16 15:03:44,779 INFO L153 SettingsManager]: * sizeof POINTER=4 [2023-12-16 15:03:44,779 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2023-12-16 15:03:44,779 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2023-12-16 15:03:44,779 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2023-12-16 15:03:44,780 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2023-12-16 15:03:44,780 INFO L153 SettingsManager]: * Adapt memory model on pointer casts if necessary=true [2023-12-16 15:03:44,780 INFO L153 SettingsManager]: * Use bitvectors instead of ints=true [2023-12-16 15:03:44,780 INFO L153 SettingsManager]: * Allow undefined functions=false [2023-12-16 15:03:44,780 INFO L153 SettingsManager]: * Memory model=HoenickeLindenmann_4ByteResolution [2023-12-16 15:03:44,780 INFO L153 SettingsManager]: * sizeof long double=12 [2023-12-16 15:03:44,781 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2023-12-16 15:03:44,781 INFO L153 SettingsManager]: * Use constant arrays=true [2023-12-16 15:03:44,782 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2023-12-16 15:03:44,782 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2023-12-16 15:03:44,782 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2023-12-16 15:03:44,782 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2023-12-16 15:03:44,782 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2023-12-16 15:03:44,782 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2023-12-16 15:03:44,782 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2023-12-16 15:03:44,783 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2023-12-16 15:03:44,783 INFO L153 SettingsManager]: * Trace refinement strategy=WOLF [2023-12-16 15:03:44,783 INFO L153 SettingsManager]: * Command for external solver=cvc4 --incremental --print-success --lang smt [2023-12-16 15:03:44,783 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2023-12-16 15:03:44,783 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2023-12-16 15:03:44,783 INFO L153 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2023-12-16 15:03:44,784 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2023-12-16 15:03:44,784 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2023-12-16 15:03:44,784 INFO L153 SettingsManager]: * Logic for external solver=AUFBV [2023-12-16 15:03:44,784 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release [2023-12-16 15:03:44,975 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2023-12-16 15:03:45,006 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2023-12-16 15:03:45,008 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2023-12-16 15:03:45,009 INFO L270 PluginConnector]: Initializing CDTParser... [2023-12-16 15:03:45,013 INFO L274 PluginConnector]: CDTParser initialized [2023-12-16 15:03:45,014 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/hardness-nfm22/hardness_operatoramount_amount500_file-64.i [2023-12-16 15:03:46,008 INFO L533 CDTParser]: Created temporary CDT project at NULL [2023-12-16 15:03:46,221 INFO L384 CDTParser]: Found 1 translation units. [2023-12-16 15:03:46,222 INFO L180 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/hardness-nfm22/hardness_operatoramount_amount500_file-64.i [2023-12-16 15:03:46,234 INFO L427 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/02db3f941/19f2dbbfac644d7199e96a15b43ec0d7/FLAG9be7185cd [2023-12-16 15:03:46,246 INFO L435 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/02db3f941/19f2dbbfac644d7199e96a15b43ec0d7 [2023-12-16 15:03:46,247 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2023-12-16 15:03:46,248 INFO L133 ToolchainWalker]: Walking toolchain with 5 elements. [2023-12-16 15:03:46,249 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2023-12-16 15:03:46,249 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2023-12-16 15:03:46,260 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2023-12-16 15:03:46,260 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 16.12 03:03:46" (1/1) ... [2023-12-16 15:03:46,261 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@406e0921 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.12 03:03:46, skipping insertion in model container [2023-12-16 15:03:46,261 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 16.12 03:03:46" (1/1) ... [2023-12-16 15:03:46,311 INFO L177 MainTranslator]: Built tables and reachable declarations [2023-12-16 15:03:46,436 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_operatoramount_amount500_file-64.i[916,929] [2023-12-16 15:03:46,627 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-12-16 15:03:46,643 INFO L202 MainTranslator]: Completed pre-run [2023-12-16 15:03:46,651 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_operatoramount_amount500_file-64.i[916,929] [2023-12-16 15:03:46,739 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-12-16 15:03:46,760 INFO L206 MainTranslator]: Completed translation [2023-12-16 15:03:46,761 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.12 03:03:46 WrapperNode [2023-12-16 15:03:46,761 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2023-12-16 15:03:46,763 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2023-12-16 15:03:46,763 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2023-12-16 15:03:46,763 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2023-12-16 15:03:46,768 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.12 03:03:46" (1/1) ... [2023-12-16 15:03:46,805 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.12 03:03:46" (1/1) ... [2023-12-16 15:03:46,858 INFO L138 Inliner]: procedures = 27, calls = 78, calls flagged for inlining = 8, calls inlined = 8, statements flattened = 548 [2023-12-16 15:03:46,858 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2023-12-16 15:03:46,859 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2023-12-16 15:03:46,859 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2023-12-16 15:03:46,859 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2023-12-16 15:03:46,869 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.12 03:03:46" (1/1) ... [2023-12-16 15:03:46,869 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.12 03:03:46" (1/1) ... [2023-12-16 15:03:46,884 INFO L184 PluginConnector]: Executing the observer MemorySlicer from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.12 03:03:46" (1/1) ... [2023-12-16 15:03:46,956 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 15:03:46,956 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.12 03:03:46" (1/1) ... [2023-12-16 15:03:46,956 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.12 03:03:46" (1/1) ... [2023-12-16 15:03:46,975 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.12 03:03:46" (1/1) ... [2023-12-16 15:03:46,979 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.12 03:03:46" (1/1) ... [2023-12-16 15:03:46,983 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.12 03:03:46" (1/1) ... [2023-12-16 15:03:46,987 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.12 03:03:46" (1/1) ... [2023-12-16 15:03:46,992 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2023-12-16 15:03:46,993 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2023-12-16 15:03:46,993 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2023-12-16 15:03:46,993 INFO L274 PluginConnector]: RCFGBuilder initialized [2023-12-16 15:03:46,994 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.12 03:03:46" (1/1) ... [2023-12-16 15:03:46,997 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2023-12-16 15:03:47,007 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-12-16 15:03:47,017 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 15:03:47,021 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 15:03:47,041 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2023-12-16 15:03:47,041 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE1#0 [2023-12-16 15:03:47,041 INFO L130 BoogieDeclarations]: Found specification of procedure assume_abort_if_not [2023-12-16 15:03:47,042 INFO L138 BoogieDeclarations]: Found implementation of procedure assume_abort_if_not [2023-12-16 15:03:47,042 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2023-12-16 15:03:47,042 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2023-12-16 15:03:47,161 INFO L241 CfgBuilder]: Building ICFG [2023-12-16 15:03:47,163 INFO L267 CfgBuilder]: Building CFG for each procedure with an implementation [2023-12-16 15:04:14,952 INFO L282 CfgBuilder]: Performing block encoding [2023-12-16 15:04:15,011 INFO L304 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2023-12-16 15:04:15,011 INFO L309 CfgBuilder]: Removed 1 assume(true) statements. [2023-12-16 15:04:15,011 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 16.12 03:04:15 BoogieIcfgContainer [2023-12-16 15:04:15,011 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2023-12-16 15:04:15,013 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2023-12-16 15:04:15,013 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2023-12-16 15:04:15,015 INFO L274 PluginConnector]: TraceAbstraction initialized [2023-12-16 15:04:15,015 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 16.12 03:03:46" (1/3) ... [2023-12-16 15:04:15,016 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@196bcf58 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 16.12 03:04:15, skipping insertion in model container [2023-12-16 15:04:15,016 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.12 03:03:46" (2/3) ... [2023-12-16 15:04:15,016 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@196bcf58 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 16.12 03:04:15, skipping insertion in model container [2023-12-16 15:04:15,016 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 16.12 03:04:15" (3/3) ... [2023-12-16 15:04:15,017 INFO L112 eAbstractionObserver]: Analyzing ICFG hardness_operatoramount_amount500_file-64.i [2023-12-16 15:04:15,031 INFO L204 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2023-12-16 15:04:15,031 INFO L163 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2023-12-16 15:04:15,068 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2023-12-16 15:04:15,073 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;@d198fe9, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2023-12-16 15:04:15,074 INFO L358 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2023-12-16 15:04:15,079 INFO L276 IsEmpty]: Start isEmpty. Operand has 213 states, 145 states have (on average 1.6206896551724137) internal successors, (235), 146 states have internal predecessors, (235), 65 states have call successors, (65), 1 states have call predecessors, (65), 1 states have return successors, (65), 65 states have call predecessors, (65), 65 states have call successors, (65) [2023-12-16 15:04:15,109 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 417 [2023-12-16 15:04:15,109 INFO L187 NwaCegarLoop]: Found error trace [2023-12-16 15:04:15,110 INFO L195 NwaCegarLoop]: trace histogram [65, 65, 65, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 15:04:15,111 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-16 15:04:15,116 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-16 15:04:15,117 INFO L85 PathProgramCache]: Analyzing trace with hash 757960072, now seen corresponding path program 1 times [2023-12-16 15:04:15,130 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-12-16 15:04:15,130 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [428277860] [2023-12-16 15:04:15,131 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-16 15:04:15,131 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 15:04:15,131 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2023-12-16 15:04:15,133 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 15:04:15,152 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 15:04:16,911 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 15:04:17,005 INFO L262 TraceCheckSpWp]: Trace formula consists of 733 conjuncts, 1 conjunts are in the unsatisfiable core [2023-12-16 15:04:17,020 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-16 15:04:17,088 INFO L134 CoverageAnalysis]: Checked inductivity of 8320 backedges. 3324 proven. 0 refuted. 0 times theorem prover too weak. 4996 trivial. 0 not checked. [2023-12-16 15:04:17,088 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-12-16 15:04:17,089 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-12-16 15:04:17,089 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [428277860] [2023-12-16 15:04:17,090 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [428277860] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-16 15:04:17,090 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-16 15:04:17,090 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2023-12-16 15:04:17,091 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [697316666] [2023-12-16 15:04:17,092 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-16 15:04:17,095 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2023-12-16 15:04:17,095 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-12-16 15:04:17,122 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2023-12-16 15:04:17,123 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2023-12-16 15:04:17,126 INFO L87 Difference]: Start difference. First operand has 213 states, 145 states have (on average 1.6206896551724137) internal successors, (235), 146 states have internal predecessors, (235), 65 states have call successors, (65), 1 states have call predecessors, (65), 1 states have return successors, (65), 65 states have call predecessors, (65), 65 states have call successors, (65) Second operand has 2 states, 2 states have (on average 49.0) internal successors, (98), 2 states have internal predecessors, (98), 2 states have call successors, (65), 2 states have call predecessors, (65), 2 states have return successors, (65), 2 states have call predecessors, (65), 2 states have call successors, (65) [2023-12-16 15:04:22,202 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.98s for a HTC check with result UNKNOWN. Formula has sorts [Bool, FloatingPoint, RoundingMode, Real, BitVec], hasArrays=false, hasNonlinArith=false, quantifiers [] [2023-12-16 15:04:22,203 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-16 15:04:22,203 INFO L93 Difference]: Finished difference Result 421 states and 789 transitions. [2023-12-16 15:04:22,581 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2023-12-16 15:04:22,583 INFO L78 Accepts]: Start accepts. Automaton has has 2 states, 2 states have (on average 49.0) internal successors, (98), 2 states have internal predecessors, (98), 2 states have call successors, (65), 2 states have call predecessors, (65), 2 states have return successors, (65), 2 states have call predecessors, (65), 2 states have call successors, (65) Word has length 416 [2023-12-16 15:04:22,583 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-16 15:04:22,589 INFO L225 Difference]: With dead ends: 421 [2023-12-16 15:04:22,589 INFO L226 Difference]: Without dead ends: 209 [2023-12-16 15:04:22,592 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 415 GetRequests, 415 SyntacticMatches, 0 SemanticMatches, 0 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2023-12-16 15:04:22,594 INFO L413 NwaCegarLoop]: 350 mSDtfsCounter, 0 mSDsluCounter, 0 mSDsCounter, 0 mSdLazyCounter, 2 mSolverCounterSat, 0 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 5.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 350 SdHoareTripleChecker+Invalid, 3 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 2 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 5.0s IncrementalHoareTripleChecker+Time [2023-12-16 15:04:22,595 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 350 Invalid, 3 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 2 Invalid, 1 Unknown, 0 Unchecked, 5.0s Time] [2023-12-16 15:04:22,606 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 209 states. [2023-12-16 15:04:22,637 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 209 to 209. [2023-12-16 15:04:22,638 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 209 states, 142 states have (on average 1.5704225352112675) internal successors, (223), 142 states have internal predecessors, (223), 65 states have call successors, (65), 1 states have call predecessors, (65), 1 states have return successors, (65), 65 states have call predecessors, (65), 65 states have call successors, (65) [2023-12-16 15:04:22,639 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 209 states to 209 states and 353 transitions. [2023-12-16 15:04:22,640 INFO L78 Accepts]: Start accepts. Automaton has 209 states and 353 transitions. Word has length 416 [2023-12-16 15:04:22,640 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-16 15:04:22,641 INFO L495 AbstractCegarLoop]: Abstraction has 209 states and 353 transitions. [2023-12-16 15:04:22,641 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 2 states, 2 states have (on average 49.0) internal successors, (98), 2 states have internal predecessors, (98), 2 states have call successors, (65), 2 states have call predecessors, (65), 2 states have return successors, (65), 2 states have call predecessors, (65), 2 states have call successors, (65) [2023-12-16 15:04:22,641 INFO L276 IsEmpty]: Start isEmpty. Operand 209 states and 353 transitions. [2023-12-16 15:04:22,646 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 418 [2023-12-16 15:04:22,646 INFO L187 NwaCegarLoop]: Found error trace [2023-12-16 15:04:22,646 INFO L195 NwaCegarLoop]: trace histogram [65, 65, 65, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 15:04:22,688 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 15:04:22,863 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 15:04:22,863 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-16 15:04:22,864 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-16 15:04:22,864 INFO L85 PathProgramCache]: Analyzing trace with hash 847337173, now seen corresponding path program 1 times [2023-12-16 15:04:22,865 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-12-16 15:04:22,865 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [587161466] [2023-12-16 15:04:22,865 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-16 15:04:22,865 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 15:04:22,866 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2023-12-16 15:04:22,867 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 15:04:22,868 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 15:04:24,526 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 15:04:24,615 INFO L262 TraceCheckSpWp]: Trace formula consists of 735 conjuncts, 3 conjunts are in the unsatisfiable core [2023-12-16 15:04:24,623 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-16 15:04:35,980 INFO L134 CoverageAnalysis]: Checked inductivity of 8320 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 8320 trivial. 0 not checked. [2023-12-16 15:04:35,981 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-12-16 15:04:35,981 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-12-16 15:04:35,981 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [587161466] [2023-12-16 15:04:35,981 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [587161466] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-16 15:04:35,981 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-16 15:04:35,981 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2023-12-16 15:04:35,981 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [466347621] [2023-12-16 15:04:35,982 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-16 15:04:35,983 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2023-12-16 15:04:35,983 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-12-16 15:04:35,984 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2023-12-16 15:04:35,984 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2023-12-16 15:04:35,984 INFO L87 Difference]: Start difference. First operand 209 states and 353 transitions. Second operand has 4 states, 4 states have (on average 23.75) internal successors, (95), 3 states have internal predecessors, (95), 1 states have call successors, (65), 1 states have call predecessors, (65), 1 states have return successors, (65), 1 states have call predecessors, (65), 1 states have call successors, (65) [2023-12-16 15:04:41,588 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.90s for a HTC check with result UNKNOWN. Formula has sorts [Bool, FloatingPoint, RoundingMode, Real, BitVec], hasArrays=false, hasNonlinArith=false, quantifiers [] [2023-12-16 15:04:45,600 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.01s for a HTC check with result UNKNOWN. Formula has sorts [Bool, FloatingPoint, RoundingMode, Real, BitVec], hasArrays=false, hasNonlinArith=false, quantifiers [] [2023-12-16 15:04:51,022 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.95s for a HTC check with result UNKNOWN. Formula has sorts [Bool, FloatingPoint, RoundingMode, Real, BitVec], hasArrays=false, hasNonlinArith=false, quantifiers [] [2023-12-16 15:04:55,030 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.01s for a HTC check with result UNKNOWN. Formula has sorts [Bool, FloatingPoint, RoundingMode, Real, BitVec], hasArrays=false, hasNonlinArith=false, quantifiers [] [2023-12-16 15:04:59,040 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.01s for a HTC check with result UNKNOWN. Formula has sorts [Bool, FloatingPoint, RoundingMode, Real, BitVec], hasArrays=false, hasNonlinArith=false, quantifiers [] [2023-12-16 15:04:59,041 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-16 15:04:59,041 INFO L93 Difference]: Finished difference Result 626 states and 1058 transitions. [2023-12-16 15:04:59,446 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2023-12-16 15:04:59,447 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 23.75) internal successors, (95), 3 states have internal predecessors, (95), 1 states have call successors, (65), 1 states have call predecessors, (65), 1 states have return successors, (65), 1 states have call predecessors, (65), 1 states have call successors, (65) Word has length 417 [2023-12-16 15:04:59,448 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-16 15:04:59,451 INFO L225 Difference]: With dead ends: 626 [2023-12-16 15:04:59,451 INFO L226 Difference]: Without dead ends: 418 [2023-12-16 15:04:59,452 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 417 GetRequests, 414 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2023-12-16 15:04:59,453 INFO L413 NwaCegarLoop]: 349 mSDtfsCounter, 258 mSDsluCounter, 691 mSDsCounter, 0 mSdLazyCounter, 14 mSolverCounterSat, 131 mSolverCounterUnsat, 5 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 22.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 258 SdHoareTripleChecker+Valid, 1040 SdHoareTripleChecker+Invalid, 150 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 131 IncrementalHoareTripleChecker+Valid, 14 IncrementalHoareTripleChecker+Invalid, 5 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 22.9s IncrementalHoareTripleChecker+Time [2023-12-16 15:04:59,453 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [258 Valid, 1040 Invalid, 150 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [131 Valid, 14 Invalid, 5 Unknown, 0 Unchecked, 22.9s Time] [2023-12-16 15:04:59,454 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 418 states. [2023-12-16 15:04:59,494 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 418 to 317. [2023-12-16 15:04:59,495 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 317 states, 184 states have (on average 1.440217391304348) internal successors, (265), 184 states have internal predecessors, (265), 130 states have call successors, (130), 2 states have call predecessors, (130), 2 states have return successors, (130), 130 states have call predecessors, (130), 130 states have call successors, (130) [2023-12-16 15:04:59,497 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 317 states to 317 states and 525 transitions. [2023-12-16 15:04:59,497 INFO L78 Accepts]: Start accepts. Automaton has 317 states and 525 transitions. Word has length 417 [2023-12-16 15:04:59,498 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-16 15:04:59,498 INFO L495 AbstractCegarLoop]: Abstraction has 317 states and 525 transitions. [2023-12-16 15:04:59,498 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 23.75) internal successors, (95), 3 states have internal predecessors, (95), 1 states have call successors, (65), 1 states have call predecessors, (65), 1 states have return successors, (65), 1 states have call predecessors, (65), 1 states have call successors, (65) [2023-12-16 15:04:59,499 INFO L276 IsEmpty]: Start isEmpty. Operand 317 states and 525 transitions. [2023-12-16 15:04:59,502 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 418 [2023-12-16 15:04:59,503 INFO L187 NwaCegarLoop]: Found error trace [2023-12-16 15:04:59,503 INFO L195 NwaCegarLoop]: trace histogram [65, 65, 65, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 15:04:59,547 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (3)] Forceful destruction successful, exit code 0 [2023-12-16 15:04:59,716 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 15:04:59,716 INFO L420 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-16 15:04:59,717 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-16 15:04:59,717 INFO L85 PathProgramCache]: Analyzing trace with hash 1291237847, now seen corresponding path program 1 times [2023-12-16 15:04:59,718 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-12-16 15:04:59,718 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [143504071] [2023-12-16 15:04:59,718 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-16 15:04:59,718 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 15:04:59,718 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2023-12-16 15:04:59,719 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 15:04:59,720 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 15:05:01,731 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 15:05:01,825 INFO L262 TraceCheckSpWp]: Trace formula consists of 734 conjuncts, 4 conjunts are in the unsatisfiable core [2023-12-16 15:05:01,831 INFO L285 TraceCheckSpWp]: Computing forward predicates... Received shutdown request... [2023-12-16 15:05:03,426 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 (4)] Timeout while monitored process is still running, waiting 1000 ms for graceful end [2023-12-16 15:05:03,460 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 15:05:04,474 INFO L805 garLoopResultBuilder]: Registering result TIMEOUT for location ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION (0 of 1 remaining) [2023-12-16 15:05:04,486 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 15:05:04,661 WARN L435 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (1)] Forcibly destroying the process [2023-12-16 15:05:04,675 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 15:05:04,675 WARN L619 AbstractCegarLoop]: Verification canceled: while NwaCegarLoop was analyzing trace of length 418 with TraceHistMax 65,while TraceCheckSpWp was constructing forward predicates,while executing Executor. [2023-12-16 15:05:04,679 INFO L445 BasicCegarLoop]: Path program histogram: [1, 1, 1] [2023-12-16 15:05:04,680 INFO L179 ceAbstractionStarter]: Computing trace abstraction results [2023-12-16 15:05:04,690 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 16.12 03:05:04 BoogieIcfgContainer [2023-12-16 15:05:04,690 INFO L131 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2023-12-16 15:05:04,691 INFO L158 Benchmark]: Toolchain (without parser) took 78442.43ms. Allocated memory was 198.2MB in the beginning and 281.0MB in the end (delta: 82.8MB). Free memory was 149.3MB in the beginning and 206.6MB in the end (delta: -57.4MB). Peak memory consumption was 26.8MB. Max. memory is 8.0GB. [2023-12-16 15:05:04,691 INFO L158 Benchmark]: CDTParser took 0.15ms. Allocated memory is still 198.2MB. Free memory is still 153.9MB. There was no memory consumed. Max. memory is 8.0GB. [2023-12-16 15:05:04,691 INFO L158 Benchmark]: CACSL2BoogieTranslator took 512.02ms. Allocated memory is still 198.2MB. Free memory was 149.3MB in the beginning and 113.5MB in the end (delta: 35.8MB). Peak memory consumption was 35.7MB. Max. memory is 8.0GB. [2023-12-16 15:05:04,691 INFO L158 Benchmark]: Boogie Procedure Inliner took 95.72ms. Allocated memory is still 198.2MB. Free memory was 113.5MB in the beginning and 106.7MB in the end (delta: 6.8MB). Peak memory consumption was 7.3MB. Max. memory is 8.0GB. [2023-12-16 15:05:04,694 INFO L158 Benchmark]: Boogie Preprocessor took 133.42ms. Allocated memory is still 198.2MB. Free memory was 106.7MB in the beginning and 160.4MB in the end (delta: -53.7MB). Peak memory consumption was 20.7MB. Max. memory is 8.0GB. [2023-12-16 15:05:04,694 INFO L158 Benchmark]: RCFGBuilder took 28018.31ms. Allocated memory is still 198.2MB. Free memory was 160.4MB in the beginning and 74.5MB in the end (delta: 86.0MB). Peak memory consumption was 86.0MB. Max. memory is 8.0GB. [2023-12-16 15:05:04,694 INFO L158 Benchmark]: TraceAbstraction took 49677.52ms. Allocated memory was 198.2MB in the beginning and 281.0MB in the end (delta: 82.8MB). Free memory was 73.9MB in the beginning and 206.6MB in the end (delta: -132.7MB). There was no memory consumed. Max. memory is 8.0GB. [2023-12-16 15:05:04,695 INFO L338 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks [2023-12-16 15:05:04,704 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (1)] Forceful destruction successful, exit code 137 Benchmark results are: * CDTParser took 0.15ms. Allocated memory is still 198.2MB. Free memory is still 153.9MB. There was no memory consumed. Max. memory is 8.0GB. * CACSL2BoogieTranslator took 512.02ms. Allocated memory is still 198.2MB. Free memory was 149.3MB in the beginning and 113.5MB in the end (delta: 35.8MB). Peak memory consumption was 35.7MB. Max. memory is 8.0GB. * Boogie Procedure Inliner took 95.72ms. Allocated memory is still 198.2MB. Free memory was 113.5MB in the beginning and 106.7MB in the end (delta: 6.8MB). Peak memory consumption was 7.3MB. Max. memory is 8.0GB. * Boogie Preprocessor took 133.42ms. Allocated memory is still 198.2MB. Free memory was 106.7MB in the beginning and 160.4MB in the end (delta: -53.7MB). Peak memory consumption was 20.7MB. Max. memory is 8.0GB. * RCFGBuilder took 28018.31ms. Allocated memory is still 198.2MB. Free memory was 160.4MB in the beginning and 74.5MB in the end (delta: 86.0MB). Peak memory consumption was 86.0MB. Max. memory is 8.0GB. * TraceAbstraction took 49677.52ms. Allocated memory was 198.2MB in the beginning and 281.0MB in the end (delta: 82.8MB). Free memory was 73.9MB in the beginning and 206.6MB in the end (delta: -132.7MB). There was no memory consumed. 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 418 with TraceHistMax 65,while TraceCheckSpWp was constructing forward predicates,while executing Executor. - StatisticsResult: Ultimate Automizer benchmark data CFG has 2 procedures, 213 locations, 1 error locations. Started 1 CEGAR loops. OverallTime: 49.6s, OverallIterations: 3, TraceHistogramMax: 65, PathProgramHistogramMax: 1, EmptinessCheckTime: 0.0s, AutomataDifference: 29.0s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 6 mSolverCounterUnknown, 258 SdHoareTripleChecker+Valid, 27.9s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 258 mSDsluCounter, 1390 SdHoareTripleChecker+Invalid, 27.4s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 691 mSDsCounter, 131 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 16 IncrementalHoareTripleChecker+Invalid, 153 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 131 mSolverCounterUnsat, 699 mSDtfsCounter, 16 mSolverCounterSat, 0.0s SdHoareTripleChecker+Time, 6 IncrementalHoareTripleChecker+Unknown, PredicateUnifierStatistics: 0 DeclaredPredicates, 832 GetRequests, 829 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.2s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=317occurred in iteration=2, InterpolantAutomatonStates: 6, 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, 2 MinimizatonAttempts, 101 StatesRemovedByMinimization, 1 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.1s SsaConstructionTime, 3.2s SatisfiabilityAnalysisTime, 11.6s InterpolantComputationTime, 833 NumberOfCodeBlocks, 833 NumberOfCodeBlocksAsserted, 2 NumberOfCheckSat, 831 ConstructedInterpolants, 0 QuantifiedInterpolants, 2287 SizeOfPredicates, 3 NumberOfNonLiveVariables, 1468 ConjunctsInSsa, 4 ConjunctsInUnsatCore, 2 InterpolantComputations, 2 PerfectInterpolantSequences, 16640/16640 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