/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-250_file-90.i -------------------------------------------------------------------------------- This is Ultimate 0.2.4-tmp.fs.bitabs-eval-d9c3e40-m [2023-12-16 11:10:10,329 INFO L188 SettingsManager]: Resetting all preferences to default values... [2023-12-16 11:10:10,396 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 11:10:10,400 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2023-12-16 11:10:10,401 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2023-12-16 11:10:10,420 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2023-12-16 11:10:10,421 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2023-12-16 11:10:10,421 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2023-12-16 11:10:10,421 INFO L151 SettingsManager]: Preferences of Boogie Preprocessor differ from their defaults: [2023-12-16 11:10:10,424 INFO L153 SettingsManager]: * Use memory slicer=true [2023-12-16 11:10:10,424 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2023-12-16 11:10:10,424 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2023-12-16 11:10:10,425 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2023-12-16 11:10:10,426 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2023-12-16 11:10:10,426 INFO L153 SettingsManager]: * Use SBE=true [2023-12-16 11:10:10,426 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2023-12-16 11:10:10,427 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2023-12-16 11:10:10,427 INFO L153 SettingsManager]: * sizeof long=4 [2023-12-16 11:10:10,427 INFO L153 SettingsManager]: * sizeof POINTER=4 [2023-12-16 11:10:10,427 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2023-12-16 11:10:10,427 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2023-12-16 11:10:10,427 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2023-12-16 11:10:10,428 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2023-12-16 11:10:10,428 INFO L153 SettingsManager]: * Adapt memory model on pointer casts if necessary=true [2023-12-16 11:10:10,428 INFO L153 SettingsManager]: * Use bitvectors instead of ints=true [2023-12-16 11:10:10,428 INFO L153 SettingsManager]: * Allow undefined functions=false [2023-12-16 11:10:10,428 INFO L153 SettingsManager]: * Memory model=HoenickeLindenmann_4ByteResolution [2023-12-16 11:10:10,428 INFO L153 SettingsManager]: * sizeof long double=12 [2023-12-16 11:10:10,428 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2023-12-16 11:10:10,428 INFO L153 SettingsManager]: * Use constant arrays=true [2023-12-16 11:10:10,429 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2023-12-16 11:10:10,429 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2023-12-16 11:10:10,429 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2023-12-16 11:10:10,430 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2023-12-16 11:10:10,430 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2023-12-16 11:10:10,430 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2023-12-16 11:10:10,430 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2023-12-16 11:10:10,430 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2023-12-16 11:10:10,430 INFO L153 SettingsManager]: * Trace refinement strategy=WOLF [2023-12-16 11:10:10,430 INFO L153 SettingsManager]: * Command for external solver=cvc4 --incremental --print-success --lang smt [2023-12-16 11:10:10,430 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2023-12-16 11:10:10,431 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2023-12-16 11:10:10,431 INFO L153 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2023-12-16 11:10:10,431 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2023-12-16 11:10:10,431 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2023-12-16 11:10:10,431 INFO L153 SettingsManager]: * Logic for external solver=AUFBV [2023-12-16 11:10:10,431 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release [2023-12-16 11:10:10,608 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2023-12-16 11:10:10,627 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2023-12-16 11:10:10,629 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2023-12-16 11:10:10,630 INFO L270 PluginConnector]: Initializing CDTParser... [2023-12-16 11:10:10,630 INFO L274 PluginConnector]: CDTParser initialized [2023-12-16 11:10:10,631 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/hardness-nfm22/hardness_fillercode_fillercodesize_ps-cn-250_file-90.i [2023-12-16 11:10:11,615 INFO L533 CDTParser]: Created temporary CDT project at NULL [2023-12-16 11:10:11,761 INFO L384 CDTParser]: Found 1 translation units. [2023-12-16 11:10:11,761 INFO L180 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/hardness-nfm22/hardness_fillercode_fillercodesize_ps-cn-250_file-90.i [2023-12-16 11:10:11,769 INFO L427 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/ddceb359b/a7d7c38d995345c6b6e249bbe21dc839/FLAGac09c6f93 [2023-12-16 11:10:11,777 INFO L435 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/ddceb359b/a7d7c38d995345c6b6e249bbe21dc839 [2023-12-16 11:10:11,779 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2023-12-16 11:10:11,780 INFO L133 ToolchainWalker]: Walking toolchain with 5 elements. [2023-12-16 11:10:11,784 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2023-12-16 11:10:11,784 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2023-12-16 11:10:11,791 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2023-12-16 11:10:11,791 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 16.12 11:10:11" (1/1) ... [2023-12-16 11:10:11,792 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@2b938184 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.12 11:10:11, skipping insertion in model container [2023-12-16 11:10:11,792 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 16.12 11:10:11" (1/1) ... [2023-12-16 11:10:11,830 INFO L177 MainTranslator]: Built tables and reachable declarations [2023-12-16 11:10:11,928 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-250_file-90.i[916,929] [2023-12-16 11:10:12,012 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-12-16 11:10:12,023 INFO L202 MainTranslator]: Completed pre-run [2023-12-16 11:10:12,030 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-250_file-90.i[916,929] [2023-12-16 11:10:12,070 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-12-16 11:10:12,093 INFO L206 MainTranslator]: Completed translation [2023-12-16 11:10:12,093 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.12 11:10:12 WrapperNode [2023-12-16 11:10:12,093 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2023-12-16 11:10:12,094 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2023-12-16 11:10:12,094 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2023-12-16 11:10:12,095 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2023-12-16 11:10:12,099 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.12 11:10:12" (1/1) ... [2023-12-16 11:10:12,116 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.12 11:10:12" (1/1) ... [2023-12-16 11:10:12,144 INFO L138 Inliner]: procedures = 27, calls = 68, calls flagged for inlining = 8, calls inlined = 8, statements flattened = 374 [2023-12-16 11:10:12,145 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2023-12-16 11:10:12,145 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2023-12-16 11:10:12,145 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2023-12-16 11:10:12,145 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2023-12-16 11:10:12,152 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.12 11:10:12" (1/1) ... [2023-12-16 11:10:12,152 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.12 11:10:12" (1/1) ... [2023-12-16 11:10:12,163 INFO L184 PluginConnector]: Executing the observer MemorySlicer from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.12 11:10:12" (1/1) ... [2023-12-16 11:10:12,173 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 11:10:12,173 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.12 11:10:12" (1/1) ... [2023-12-16 11:10:12,173 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.12 11:10:12" (1/1) ... [2023-12-16 11:10:12,188 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.12 11:10:12" (1/1) ... [2023-12-16 11:10:12,191 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.12 11:10:12" (1/1) ... [2023-12-16 11:10:12,194 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.12 11:10:12" (1/1) ... [2023-12-16 11:10:12,195 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.12 11:10:12" (1/1) ... [2023-12-16 11:10:12,199 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2023-12-16 11:10:12,199 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2023-12-16 11:10:12,199 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2023-12-16 11:10:12,200 INFO L274 PluginConnector]: RCFGBuilder initialized [2023-12-16 11:10:12,200 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.12 11:10:12" (1/1) ... [2023-12-16 11:10:12,204 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2023-12-16 11:10:12,213 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-12-16 11:10:12,225 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 11:10:12,239 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 11:10:12,262 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2023-12-16 11:10:12,262 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE1#0 [2023-12-16 11:10:12,263 INFO L130 BoogieDeclarations]: Found specification of procedure assume_abort_if_not [2023-12-16 11:10:12,264 INFO L138 BoogieDeclarations]: Found implementation of procedure assume_abort_if_not [2023-12-16 11:10:12,264 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2023-12-16 11:10:12,264 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2023-12-16 11:10:12,361 INFO L241 CfgBuilder]: Building ICFG [2023-12-16 11:10:12,362 INFO L267 CfgBuilder]: Building CFG for each procedure with an implementation [2023-12-16 11:10:23,549 INFO L282 CfgBuilder]: Performing block encoding [2023-12-16 11:10:23,602 INFO L304 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2023-12-16 11:10:23,602 INFO L309 CfgBuilder]: Removed 1 assume(true) statements. [2023-12-16 11:10:23,602 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 16.12 11:10:23 BoogieIcfgContainer [2023-12-16 11:10:23,602 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2023-12-16 11:10:23,604 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2023-12-16 11:10:23,604 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2023-12-16 11:10:23,606 INFO L274 PluginConnector]: TraceAbstraction initialized [2023-12-16 11:10:23,607 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 16.12 11:10:11" (1/3) ... [2023-12-16 11:10:23,607 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@6acfe010 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 16.12 11:10:23, skipping insertion in model container [2023-12-16 11:10:23,608 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.12 11:10:12" (2/3) ... [2023-12-16 11:10:23,608 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@6acfe010 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 16.12 11:10:23, skipping insertion in model container [2023-12-16 11:10:23,608 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 16.12 11:10:23" (3/3) ... [2023-12-16 11:10:23,609 INFO L112 eAbstractionObserver]: Analyzing ICFG hardness_fillercode_fillercodesize_ps-cn-250_file-90.i [2023-12-16 11:10:23,622 INFO L204 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2023-12-16 11:10:23,623 INFO L163 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2023-12-16 11:10:23,667 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2023-12-16 11:10:23,671 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;@48b4ca8f, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2023-12-16 11:10:23,671 INFO L358 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2023-12-16 11:10:23,676 INFO L276 IsEmpty]: Start isEmpty. Operand has 160 states, 102 states have (on average 1.6372549019607843) internal successors, (167), 103 states have internal predecessors, (167), 55 states have call successors, (55), 1 states have call predecessors, (55), 1 states have return successors, (55), 55 states have call predecessors, (55), 55 states have call successors, (55) [2023-12-16 11:10:23,699 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 347 [2023-12-16 11:10:23,699 INFO L187 NwaCegarLoop]: Found error trace [2023-12-16 11:10:23,700 INFO L195 NwaCegarLoop]: trace histogram [55, 55, 55, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 11:10:23,701 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-16 11:10:23,707 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-16 11:10:23,708 INFO L85 PathProgramCache]: Analyzing trace with hash -854788461, now seen corresponding path program 1 times [2023-12-16 11:10:23,718 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-12-16 11:10:23,719 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1642299] [2023-12-16 11:10:23,719 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-16 11:10:23,719 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 11:10:23,719 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2023-12-16 11:10:23,721 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 11:10:23,726 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 11:10:24,416 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 11:10:24,453 INFO L262 TraceCheckSpWp]: Trace formula consists of 573 conjuncts, 1 conjunts are in the unsatisfiable core [2023-12-16 11:10:24,463 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-16 11:10:24,516 INFO L134 CoverageAnalysis]: Checked inductivity of 5940 backedges. 2240 proven. 0 refuted. 0 times theorem prover too weak. 3700 trivial. 0 not checked. [2023-12-16 11:10:24,516 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-12-16 11:10:24,517 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-12-16 11:10:24,517 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1642299] [2023-12-16 11:10:24,518 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1642299] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-16 11:10:24,518 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-16 11:10:24,518 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2023-12-16 11:10:24,519 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [848790243] [2023-12-16 11:10:24,519 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-16 11:10:24,524 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2023-12-16 11:10:24,524 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-12-16 11:10:24,545 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2023-12-16 11:10:24,546 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2023-12-16 11:10:24,550 INFO L87 Difference]: Start difference. First operand has 160 states, 102 states have (on average 1.6372549019607843) internal successors, (167), 103 states have internal predecessors, (167), 55 states have call successors, (55), 1 states have call predecessors, (55), 1 states have return successors, (55), 55 states have call predecessors, (55), 55 states have call successors, (55) Second operand has 2 states, 2 states have (on average 39.0) internal successors, (78), 2 states have internal predecessors, (78), 2 states have call successors, (55), 2 states have call predecessors, (55), 2 states have return successors, (55), 2 states have call predecessors, (55), 2 states have call successors, (55) [2023-12-16 11:10:24,875 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-16 11:10:24,875 INFO L93 Difference]: Finished difference Result 317 states and 607 transitions. [2023-12-16 11:10:24,888 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2023-12-16 11:10:24,890 INFO L78 Accepts]: Start accepts. Automaton has has 2 states, 2 states have (on average 39.0) internal successors, (78), 2 states have internal predecessors, (78), 2 states have call successors, (55), 2 states have call predecessors, (55), 2 states have return successors, (55), 2 states have call predecessors, (55), 2 states have call successors, (55) Word has length 346 [2023-12-16 11:10:24,890 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-16 11:10:24,895 INFO L225 Difference]: With dead ends: 317 [2023-12-16 11:10:24,896 INFO L226 Difference]: Without dead ends: 158 [2023-12-16 11:10:24,907 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 345 GetRequests, 345 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 11:10:24,910 INFO L413 NwaCegarLoop]: 269 mSDtfsCounter, 0 mSDsluCounter, 0 mSDsCounter, 0 mSdLazyCounter, 3 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 269 SdHoareTripleChecker+Invalid, 3 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 3 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2023-12-16 11:10:24,910 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 269 Invalid, 3 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 3 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2023-12-16 11:10:24,921 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 158 states. [2023-12-16 11:10:24,944 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 158 to 158. [2023-12-16 11:10:24,945 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 158 states, 101 states have (on average 1.603960396039604) internal successors, (162), 101 states have internal predecessors, (162), 55 states have call successors, (55), 1 states have call predecessors, (55), 1 states have return successors, (55), 55 states have call predecessors, (55), 55 states have call successors, (55) [2023-12-16 11:10:24,947 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 158 states to 158 states and 272 transitions. [2023-12-16 11:10:24,947 INFO L78 Accepts]: Start accepts. Automaton has 158 states and 272 transitions. Word has length 346 [2023-12-16 11:10:24,948 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-16 11:10:24,948 INFO L495 AbstractCegarLoop]: Abstraction has 158 states and 272 transitions. [2023-12-16 11:10:24,948 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 2 states, 2 states have (on average 39.0) internal successors, (78), 2 states have internal predecessors, (78), 2 states have call successors, (55), 2 states have call predecessors, (55), 2 states have return successors, (55), 2 states have call predecessors, (55), 2 states have call successors, (55) [2023-12-16 11:10:24,948 INFO L276 IsEmpty]: Start isEmpty. Operand 158 states and 272 transitions. [2023-12-16 11:10:24,952 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 347 [2023-12-16 11:10:24,952 INFO L187 NwaCegarLoop]: Found error trace [2023-12-16 11:10:24,952 INFO L195 NwaCegarLoop]: trace histogram [55, 55, 55, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 11:10:24,974 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (2)] Ended with exit code 0 [2023-12-16 11:10:25,168 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 11:10:25,168 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-16 11:10:25,169 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-16 11:10:25,169 INFO L85 PathProgramCache]: Analyzing trace with hash 783614925, now seen corresponding path program 1 times [2023-12-16 11:10:25,170 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-12-16 11:10:25,170 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1700100303] [2023-12-16 11:10:25,170 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-16 11:10:25,170 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 11:10:25,170 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2023-12-16 11:10:25,171 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 11:10:25,173 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 11:10:25,836 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 11:10:25,877 INFO L262 TraceCheckSpWp]: Trace formula consists of 573 conjuncts, 5 conjunts are in the unsatisfiable core [2023-12-16 11:10:25,886 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-16 11:10:27,405 INFO L134 CoverageAnalysis]: Checked inductivity of 5940 backedges. 3012 proven. 75 refuted. 0 times theorem prover too weak. 2853 trivial. 0 not checked. [2023-12-16 11:10:27,405 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-12-16 11:10:27,504 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-12-16 11:10:27,505 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1700100303] [2023-12-16 11:10:27,505 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1700100303] provided 0 perfect and 1 imperfect interpolant sequences [2023-12-16 11:10:27,505 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleCvc4 [53509400] [2023-12-16 11:10:27,505 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-16 11:10:27,505 INFO L173 SolverBuilder]: Constructing external solver with command: cvc4 --incremental --print-success --lang smt [2023-12-16 11:10:27,506 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/cvc4 [2023-12-16 11:10:27,549 INFO L229 MonitoredProcess]: Starting monitored process 4 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/cvc4 --incremental --print-success --lang smt (exit command is (exit), workingDir is null) [2023-12-16 11:10:27,567 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/cvc4 --incremental --print-success --lang smt (4)] Waiting until timeout for monitored process [2023-12-16 11:10:28,157 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 11:10:28,200 INFO L262 TraceCheckSpWp]: Trace formula consists of 573 conjuncts, 2 conjunts are in the unsatisfiable core [2023-12-16 11:10:28,205 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-16 11:10:28,283 INFO L134 CoverageAnalysis]: Checked inductivity of 5940 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 5940 trivial. 0 not checked. [2023-12-16 11:10:28,283 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-12-16 11:10:28,283 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleCvc4 [53509400] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-16 11:10:28,284 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2023-12-16 11:10:28,284 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [5] total 7 [2023-12-16 11:10:28,284 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1750674870] [2023-12-16 11:10:28,284 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-16 11:10:28,285 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-12-16 11:10:28,285 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-12-16 11:10:28,288 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-12-16 11:10:28,288 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=17, Invalid=39, Unknown=0, NotChecked=0, Total=56 [2023-12-16 11:10:28,288 INFO L87 Difference]: Start difference. First operand 158 states and 272 transitions. Second operand has 3 states, 3 states have (on average 24.666666666666668) internal successors, (74), 3 states have internal predecessors, (74), 1 states have call successors, (55), 1 states have call predecessors, (55), 1 states have return successors, (55), 1 states have call predecessors, (55), 1 states have call successors, (55) [2023-12-16 11:10:28,721 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-16 11:10:28,721 INFO L93 Difference]: Finished difference Result 413 states and 715 transitions. [2023-12-16 11:10:28,722 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-12-16 11:10:28,722 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 24.666666666666668) internal successors, (74), 3 states have internal predecessors, (74), 1 states have call successors, (55), 1 states have call predecessors, (55), 1 states have return successors, (55), 1 states have call predecessors, (55), 1 states have call successors, (55) Word has length 346 [2023-12-16 11:10:28,723 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-16 11:10:28,725 INFO L225 Difference]: With dead ends: 413 [2023-12-16 11:10:28,725 INFO L226 Difference]: Without dead ends: 256 [2023-12-16 11:10:28,726 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 733 GetRequests, 727 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 7 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=17, Invalid=39, Unknown=0, NotChecked=0, Total=56 [2023-12-16 11:10:28,726 INFO L413 NwaCegarLoop]: 332 mSDtfsCounter, 157 mSDsluCounter, 256 mSDsCounter, 0 mSdLazyCounter, 22 mSolverCounterSat, 5 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 157 SdHoareTripleChecker+Valid, 588 SdHoareTripleChecker+Invalid, 27 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 5 IncrementalHoareTripleChecker+Valid, 22 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.4s IncrementalHoareTripleChecker+Time [2023-12-16 11:10:28,727 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [157 Valid, 588 Invalid, 27 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [5 Valid, 22 Invalid, 0 Unknown, 0 Unchecked, 0.4s Time] [2023-12-16 11:10:28,727 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 256 states. [2023-12-16 11:10:28,753 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 256 to 253. [2023-12-16 11:10:28,753 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 253 states, 177 states have (on average 1.6610169491525424) internal successors, (294), 178 states have internal predecessors, (294), 73 states have call successors, (73), 2 states have call predecessors, (73), 2 states have return successors, (73), 72 states have call predecessors, (73), 73 states have call successors, (73) [2023-12-16 11:10:28,755 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 253 states to 253 states and 440 transitions. [2023-12-16 11:10:28,755 INFO L78 Accepts]: Start accepts. Automaton has 253 states and 440 transitions. Word has length 346 [2023-12-16 11:10:28,756 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-16 11:10:28,756 INFO L495 AbstractCegarLoop]: Abstraction has 253 states and 440 transitions. [2023-12-16 11:10:28,756 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 24.666666666666668) internal successors, (74), 3 states have internal predecessors, (74), 1 states have call successors, (55), 1 states have call predecessors, (55), 1 states have return successors, (55), 1 states have call predecessors, (55), 1 states have call successors, (55) [2023-12-16 11:10:28,756 INFO L276 IsEmpty]: Start isEmpty. Operand 253 states and 440 transitions. [2023-12-16 11:10:28,760 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 347 [2023-12-16 11:10:28,760 INFO L187 NwaCegarLoop]: Found error trace [2023-12-16 11:10:28,760 INFO L195 NwaCegarLoop]: trace histogram [55, 55, 55, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 11:10:28,768 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/cvc4 --incremental --print-success --lang smt (4)] Forceful destruction successful, exit code 0 [2023-12-16 11:10:28,983 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 11:10:29,160 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 4 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/cvc4 --incremental --print-success --lang smt,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 11:10:29,161 INFO L420 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-16 11:10:29,162 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-16 11:10:29,162 INFO L85 PathProgramCache]: Analyzing trace with hash 196808911, now seen corresponding path program 1 times [2023-12-16 11:10:29,163 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-12-16 11:10:29,163 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [501540813] [2023-12-16 11:10:29,163 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-16 11:10:29,163 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 11:10:29,163 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2023-12-16 11:10:29,165 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 11:10:29,168 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 11:10:29,790 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 11:10:29,830 INFO L262 TraceCheckSpWp]: Trace formula consists of 573 conjuncts, 5 conjunts are in the unsatisfiable core [2023-12-16 11:10:29,835 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-16 11:10:31,302 INFO L134 CoverageAnalysis]: Checked inductivity of 5940 backedges. 3012 proven. 75 refuted. 0 times theorem prover too weak. 2853 trivial. 0 not checked. [2023-12-16 11:10:31,302 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-12-16 11:10:31,394 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-12-16 11:10:31,395 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [501540813] [2023-12-16 11:10:31,395 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [501540813] provided 0 perfect and 1 imperfect interpolant sequences [2023-12-16 11:10:31,395 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleCvc4 [1783822665] [2023-12-16 11:10:31,395 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-16 11:10:31,395 INFO L173 SolverBuilder]: Constructing external solver with command: cvc4 --incremental --print-success --lang smt [2023-12-16 11:10:31,396 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/cvc4 [2023-12-16 11:10:31,396 INFO L229 MonitoredProcess]: Starting monitored process 6 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/cvc4 --incremental --print-success --lang smt (exit command is (exit), workingDir is null) [2023-12-16 11:10:31,416 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/cvc4 --incremental --print-success --lang smt (6)] Waiting until timeout for monitored process [2023-12-16 11:10:32,047 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 11:10:32,088 INFO L262 TraceCheckSpWp]: Trace formula consists of 573 conjuncts, 2 conjunts are in the unsatisfiable core [2023-12-16 11:10:32,092 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-16 11:10:32,207 INFO L134 CoverageAnalysis]: Checked inductivity of 5940 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 5940 trivial. 0 not checked. [2023-12-16 11:10:32,207 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-12-16 11:10:32,207 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleCvc4 [1783822665] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-16 11:10:32,207 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2023-12-16 11:10:32,207 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [5] total 7 [2023-12-16 11:10:32,208 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1103009944] [2023-12-16 11:10:32,208 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-16 11:10:32,208 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-12-16 11:10:32,208 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-12-16 11:10:32,209 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-12-16 11:10:32,209 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=17, Invalid=39, Unknown=0, NotChecked=0, Total=56 [2023-12-16 11:10:32,209 INFO L87 Difference]: Start difference. First operand 253 states and 440 transitions. Second operand has 3 states, 3 states have (on average 24.666666666666668) internal successors, (74), 3 states have internal predecessors, (74), 1 states have call successors, (55), 1 states have call predecessors, (55), 1 states have return successors, (55), 1 states have call predecessors, (55), 1 states have call successors, (55) [2023-12-16 11:10:32,898 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-16 11:10:32,898 INFO L93 Difference]: Finished difference Result 512 states and 884 transitions. [2023-12-16 11:10:32,904 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-12-16 11:10:32,904 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 24.666666666666668) internal successors, (74), 3 states have internal predecessors, (74), 1 states have call successors, (55), 1 states have call predecessors, (55), 1 states have return successors, (55), 1 states have call predecessors, (55), 1 states have call successors, (55) Word has length 346 [2023-12-16 11:10:32,905 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-16 11:10:32,907 INFO L225 Difference]: With dead ends: 512 [2023-12-16 11:10:32,907 INFO L226 Difference]: Without dead ends: 260 [2023-12-16 11:10:32,908 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 733 GetRequests, 727 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 7 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=17, Invalid=39, Unknown=0, NotChecked=0, Total=56 [2023-12-16 11:10:32,908 INFO L413 NwaCegarLoop]: 361 mSDtfsCounter, 146 mSDsluCounter, 252 mSDsCounter, 0 mSdLazyCounter, 20 mSolverCounterSat, 4 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 146 SdHoareTripleChecker+Valid, 613 SdHoareTripleChecker+Invalid, 24 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 4 IncrementalHoareTripleChecker+Valid, 20 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.7s IncrementalHoareTripleChecker+Time [2023-12-16 11:10:32,909 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [146 Valid, 613 Invalid, 24 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [4 Valid, 20 Invalid, 0 Unknown, 0 Unchecked, 0.7s Time] [2023-12-16 11:10:32,909 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 260 states. [2023-12-16 11:10:32,934 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 260 to 209. [2023-12-16 11:10:32,935 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 209 states, 151 states have (on average 1.6622516556291391) internal successors, (251), 151 states have internal predecessors, (251), 55 states have call successors, (55), 2 states have call predecessors, (55), 2 states have return successors, (55), 55 states have call predecessors, (55), 55 states have call successors, (55) [2023-12-16 11:10:32,937 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 209 states to 209 states and 361 transitions. [2023-12-16 11:10:32,937 INFO L78 Accepts]: Start accepts. Automaton has 209 states and 361 transitions. Word has length 346 [2023-12-16 11:10:32,938 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-16 11:10:32,938 INFO L495 AbstractCegarLoop]: Abstraction has 209 states and 361 transitions. [2023-12-16 11:10:32,939 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 24.666666666666668) internal successors, (74), 3 states have internal predecessors, (74), 1 states have call successors, (55), 1 states have call predecessors, (55), 1 states have return successors, (55), 1 states have call predecessors, (55), 1 states have call successors, (55) [2023-12-16 11:10:32,939 INFO L276 IsEmpty]: Start isEmpty. Operand 209 states and 361 transitions. [2023-12-16 11:10:32,942 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 347 [2023-12-16 11:10:32,942 INFO L187 NwaCegarLoop]: Found error trace [2023-12-16 11:10:32,942 INFO L195 NwaCegarLoop]: trace histogram [55, 55, 55, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 11:10:32,963 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 11:10:33,166 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/cvc4 --incremental --print-success --lang smt (6)] Ended with exit code 0 [2023-12-16 11:10:33,362 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 5 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3,6 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/cvc4 --incremental --print-success --lang smt [2023-12-16 11:10:33,362 INFO L420 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-16 11:10:33,363 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-16 11:10:33,363 INFO L85 PathProgramCache]: Analyzing trace with hash 620455633, now seen corresponding path program 1 times [2023-12-16 11:10:33,364 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-12-16 11:10:33,364 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [836849730] [2023-12-16 11:10:33,364 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-16 11:10:33,364 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 11:10:33,364 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2023-12-16 11:10:33,365 INFO L229 MonitoredProcess]: Starting monitored process 7 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2023-12-16 11:10:33,366 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (7)] Waiting until timeout for monitored process [2023-12-16 11:10:34,041 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 11:10:34,081 INFO L262 TraceCheckSpWp]: Trace formula consists of 573 conjuncts, 5 conjunts are in the unsatisfiable core [2023-12-16 11:10:34,086 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-16 11:10:35,753 INFO L134 CoverageAnalysis]: Checked inductivity of 5940 backedges. 3012 proven. 75 refuted. 0 times theorem prover too weak. 2853 trivial. 0 not checked. [2023-12-16 11:10:35,754 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-12-16 11:10:35,833 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-12-16 11:10:35,833 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [836849730] [2023-12-16 11:10:35,833 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [836849730] provided 0 perfect and 1 imperfect interpolant sequences [2023-12-16 11:10:35,834 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleCvc4 [1805495225] [2023-12-16 11:10:35,834 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-16 11:10:35,834 INFO L173 SolverBuilder]: Constructing external solver with command: cvc4 --incremental --print-success --lang smt [2023-12-16 11:10:35,834 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/cvc4 [2023-12-16 11:10:35,835 INFO L229 MonitoredProcess]: Starting monitored process 8 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/cvc4 --incremental --print-success --lang smt (exit command is (exit), workingDir is null) [2023-12-16 11:10:35,848 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/cvc4 --incremental --print-success --lang smt (8)] Waiting until timeout for monitored process [2023-12-16 11:10:36,447 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 11:10:36,480 INFO L262 TraceCheckSpWp]: Trace formula consists of 573 conjuncts, 2 conjunts are in the unsatisfiable core [2023-12-16 11:10:36,484 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-16 11:10:36,510 INFO L134 CoverageAnalysis]: Checked inductivity of 5940 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 5940 trivial. 0 not checked. [2023-12-16 11:10:36,510 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-12-16 11:10:36,511 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleCvc4 [1805495225] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-16 11:10:36,511 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2023-12-16 11:10:36,511 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [5] total 7 [2023-12-16 11:10:36,511 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [596750831] [2023-12-16 11:10:36,511 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-16 11:10:36,512 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-12-16 11:10:36,512 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-12-16 11:10:36,512 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-12-16 11:10:36,512 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=17, Invalid=39, Unknown=0, NotChecked=0, Total=56 [2023-12-16 11:10:36,512 INFO L87 Difference]: Start difference. First operand 209 states and 361 transitions. Second operand has 3 states, 3 states have (on average 24.666666666666668) internal successors, (74), 3 states have internal predecessors, (74), 1 states have call successors, (55), 1 states have call predecessors, (55), 1 states have return successors, (55), 1 states have call predecessors, (55), 1 states have call successors, (55) [2023-12-16 11:10:36,763 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-16 11:10:36,763 INFO L93 Difference]: Finished difference Result 544 states and 935 transitions. [2023-12-16 11:10:36,764 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-12-16 11:10:36,764 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 24.666666666666668) internal successors, (74), 3 states have internal predecessors, (74), 1 states have call successors, (55), 1 states have call predecessors, (55), 1 states have return successors, (55), 1 states have call predecessors, (55), 1 states have call successors, (55) Word has length 346 [2023-12-16 11:10:36,764 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-16 11:10:36,768 INFO L225 Difference]: With dead ends: 544 [2023-12-16 11:10:36,768 INFO L226 Difference]: Without dead ends: 336 [2023-12-16 11:10:36,769 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 733 GetRequests, 727 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 7 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=17, Invalid=39, Unknown=0, NotChecked=0, Total=56 [2023-12-16 11:10:36,769 INFO L413 NwaCegarLoop]: 379 mSDtfsCounter, 164 mSDsluCounter, 259 mSDsCounter, 0 mSdLazyCounter, 17 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 164 SdHoareTripleChecker+Valid, 638 SdHoareTripleChecker+Invalid, 18 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 17 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2023-12-16 11:10:36,769 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [164 Valid, 638 Invalid, 18 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 17 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2023-12-16 11:10:36,770 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 336 states. [2023-12-16 11:10:36,782 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 336 to 333. [2023-12-16 11:10:36,782 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 333 states, 243 states have (on average 1.6502057613168724) internal successors, (401), 244 states have internal predecessors, (401), 85 states have call successors, (85), 4 states have call predecessors, (85), 4 states have return successors, (85), 84 states have call predecessors, (85), 85 states have call successors, (85) [2023-12-16 11:10:36,784 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 333 states to 333 states and 571 transitions. [2023-12-16 11:10:36,784 INFO L78 Accepts]: Start accepts. Automaton has 333 states and 571 transitions. Word has length 346 [2023-12-16 11:10:36,785 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-16 11:10:36,785 INFO L495 AbstractCegarLoop]: Abstraction has 333 states and 571 transitions. [2023-12-16 11:10:36,785 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 24.666666666666668) internal successors, (74), 3 states have internal predecessors, (74), 1 states have call successors, (55), 1 states have call predecessors, (55), 1 states have return successors, (55), 1 states have call predecessors, (55), 1 states have call successors, (55) [2023-12-16 11:10:36,785 INFO L276 IsEmpty]: Start isEmpty. Operand 333 states and 571 transitions. [2023-12-16 11:10:36,787 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 347 [2023-12-16 11:10:36,787 INFO L187 NwaCegarLoop]: Found error trace [2023-12-16 11:10:36,787 INFO L195 NwaCegarLoop]: trace histogram [55, 55, 55, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 11:10:36,813 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (7)] Forceful destruction successful, exit code 0 [2023-12-16 11:10:37,006 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/cvc4 --incremental --print-success --lang smt (8)] Ended with exit code 0 [2023-12-16 11:10:37,200 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 7 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3,8 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/cvc4 --incremental --print-success --lang smt [2023-12-16 11:10:37,201 INFO L420 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-16 11:10:37,201 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-16 11:10:37,201 INFO L85 PathProgramCache]: Analyzing trace with hash 1043157459, now seen corresponding path program 1 times [2023-12-16 11:10:37,202 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-12-16 11:10:37,202 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [925100500] [2023-12-16 11:10:37,202 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-16 11:10:37,202 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 11:10:37,202 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2023-12-16 11:10:37,206 INFO L229 MonitoredProcess]: Starting monitored process 9 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 11:10:37,234 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 (9)] Waiting until timeout for monitored process [2023-12-16 11:10:37,848 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 11:10:37,886 INFO L262 TraceCheckSpWp]: Trace formula consists of 572 conjuncts, 5 conjunts are in the unsatisfiable core [2023-12-16 11:10:37,896 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-16 11:10:39,596 INFO L134 CoverageAnalysis]: Checked inductivity of 5940 backedges. 3012 proven. 75 refuted. 0 times theorem prover too weak. 2853 trivial. 0 not checked. [2023-12-16 11:10:39,596 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-12-16 11:10:39,671 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-12-16 11:10:39,671 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [925100500] [2023-12-16 11:10:39,671 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [925100500] provided 0 perfect and 1 imperfect interpolant sequences [2023-12-16 11:10:39,671 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleCvc4 [2035247899] [2023-12-16 11:10:39,672 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-16 11:10:39,672 INFO L173 SolverBuilder]: Constructing external solver with command: cvc4 --incremental --print-success --lang smt [2023-12-16 11:10:39,672 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/cvc4 [2023-12-16 11:10:39,673 INFO L229 MonitoredProcess]: Starting monitored process 10 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/cvc4 --incremental --print-success --lang smt (exit command is (exit), workingDir is null) [2023-12-16 11:10:39,674 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/cvc4 --incremental --print-success --lang smt (10)] Waiting until timeout for monitored process [2023-12-16 11:10:41,393 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 11:10:41,425 INFO L262 TraceCheckSpWp]: Trace formula consists of 572 conjuncts, 5 conjunts are in the unsatisfiable core [2023-12-16 11:10:41,429 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-16 11:10:42,459 INFO L134 CoverageAnalysis]: Checked inductivity of 5940 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 5940 trivial. 0 not checked. [2023-12-16 11:10:42,459 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-12-16 11:10:42,459 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleCvc4 [2035247899] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-16 11:10:42,459 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2023-12-16 11:10:42,460 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [5] total 8 [2023-12-16 11:10:42,460 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [856086203] [2023-12-16 11:10:42,460 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-16 11:10:42,460 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2023-12-16 11:10:42,460 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-12-16 11:10:42,461 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2023-12-16 11:10:42,461 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=28, Invalid=62, Unknown=0, NotChecked=0, Total=90 [2023-12-16 11:10:42,461 INFO L87 Difference]: Start difference. First operand 333 states and 571 transitions. Second operand has 6 states, 6 states have (on average 12.333333333333334) internal successors, (74), 5 states have internal predecessors, (74), 1 states have call successors, (55), 1 states have call predecessors, (55), 1 states have return successors, (55), 1 states have call predecessors, (55), 1 states have call successors, (55) [2023-12-16 11:10:45,099 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.27s for a HTC check with result INVALID. Formula has sorts [Bool, FloatingPoint, RoundingMode, Real, BitVec], hasArrays=false, hasNonlinArith=false, quantifiers [] [2023-12-16 11:10:47,562 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.10s for a HTC check with result INVALID. Formula has sorts [Bool, FloatingPoint, RoundingMode, Real, BitVec], hasArrays=false, hasNonlinArith=false, quantifiers [] [2023-12-16 11:10:49,984 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.19s for a HTC check with result INVALID. Formula has sorts [Bool, FloatingPoint, RoundingMode, Real, BitVec], hasArrays=false, hasNonlinArith=false, quantifiers [] [2023-12-16 11:10:51,367 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-16 11:10:51,368 INFO L93 Difference]: Finished difference Result 1328 states and 2265 transitions. [2023-12-16 11:10:51,368 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2023-12-16 11:10:51,368 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 12.333333333333334) internal successors, (74), 5 states have internal predecessors, (74), 1 states have call successors, (55), 1 states have call predecessors, (55), 1 states have return successors, (55), 1 states have call predecessors, (55), 1 states have call successors, (55) Word has length 346 [2023-12-16 11:10:51,369 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-16 11:10:51,375 INFO L225 Difference]: With dead ends: 1328 [2023-12-16 11:10:51,375 INFO L226 Difference]: Without dead ends: 996 [2023-12-16 11:10:51,377 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 733 GetRequests, 725 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 6 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=28, Invalid=62, Unknown=0, NotChecked=0, Total=90 [2023-12-16 11:10:51,377 INFO L413 NwaCegarLoop]: 463 mSDtfsCounter, 633 mSDsluCounter, 395 mSDsCounter, 0 mSdLazyCounter, 285 mSolverCounterSat, 57 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 8.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 633 SdHoareTripleChecker+Valid, 858 SdHoareTripleChecker+Invalid, 342 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 57 IncrementalHoareTripleChecker+Valid, 285 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 8.8s IncrementalHoareTripleChecker+Time [2023-12-16 11:10:51,377 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [633 Valid, 858 Invalid, 342 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [57 Valid, 285 Invalid, 0 Unknown, 0 Unchecked, 8.8s Time] [2023-12-16 11:10:51,378 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 996 states. [2023-12-16 11:10:51,441 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 996 to 719. [2023-12-16 11:10:51,443 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 719 states, 509 states have (on average 1.612966601178782) internal successors, (821), 512 states have internal predecessors, (821), 198 states have call successors, (198), 11 states have call predecessors, (198), 11 states have return successors, (198), 195 states have call predecessors, (198), 198 states have call successors, (198) [2023-12-16 11:10:51,445 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 719 states to 719 states and 1217 transitions. [2023-12-16 11:10:51,446 INFO L78 Accepts]: Start accepts. Automaton has 719 states and 1217 transitions. Word has length 346 [2023-12-16 11:10:51,447 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-16 11:10:51,447 INFO L495 AbstractCegarLoop]: Abstraction has 719 states and 1217 transitions. [2023-12-16 11:10:51,447 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 12.333333333333334) internal successors, (74), 5 states have internal predecessors, (74), 1 states have call successors, (55), 1 states have call predecessors, (55), 1 states have return successors, (55), 1 states have call predecessors, (55), 1 states have call successors, (55) [2023-12-16 11:10:51,447 INFO L276 IsEmpty]: Start isEmpty. Operand 719 states and 1217 transitions. [2023-12-16 11:10:51,450 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 347 [2023-12-16 11:10:51,450 INFO L187 NwaCegarLoop]: Found error trace [2023-12-16 11:10:51,450 INFO L195 NwaCegarLoop]: trace histogram [55, 55, 55, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 11:10:51,473 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 (9)] Forceful destruction successful, exit code 0 [2023-12-16 11:10:51,676 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/cvc4 --incremental --print-success --lang smt (10)] Forceful destruction successful, exit code 0 [2023-12-16 11:10:51,865 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 9 /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=3,10 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/cvc4 --incremental --print-success --lang smt [2023-12-16 11:10:51,865 INFO L420 AbstractCegarLoop]: === Iteration 6 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-16 11:10:51,865 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-16 11:10:51,865 INFO L85 PathProgramCache]: Analyzing trace with hash 1702688981, now seen corresponding path program 1 times [2023-12-16 11:10:51,866 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-12-16 11:10:51,866 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [685654075] [2023-12-16 11:10:51,866 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-16 11:10:51,866 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 11:10:51,866 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2023-12-16 11:10:51,867 INFO L229 MonitoredProcess]: Starting monitored process 11 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 11:10:51,868 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 (11)] Waiting until timeout for monitored process [2023-12-16 11:10:52,428 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 11:10:52,464 INFO L262 TraceCheckSpWp]: Trace formula consists of 571 conjuncts, 6 conjunts are in the unsatisfiable core [2023-12-16 11:10:52,469 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-16 11:10:54,146 INFO L134 CoverageAnalysis]: Checked inductivity of 5940 backedges. 3012 proven. 75 refuted. 0 times theorem prover too weak. 2853 trivial. 0 not checked. [2023-12-16 11:10:54,147 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-12-16 11:10:54,457 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-12-16 11:10:54,457 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [685654075] [2023-12-16 11:10:54,457 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [685654075] provided 0 perfect and 1 imperfect interpolant sequences [2023-12-16 11:10:54,457 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleCvc4 [1844038935] [2023-12-16 11:10:54,457 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-16 11:10:54,457 INFO L173 SolverBuilder]: Constructing external solver with command: cvc4 --incremental --print-success --lang smt [2023-12-16 11:10:54,457 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/cvc4 [2023-12-16 11:10:54,458 INFO L229 MonitoredProcess]: Starting monitored process 12 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/cvc4 --incremental --print-success --lang smt (exit command is (exit), workingDir is null) [2023-12-16 11:10:54,462 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/cvc4 --incremental --print-success --lang smt (12)] Waiting until timeout for monitored process [2023-12-16 11:10:55,807 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 11:10:55,847 INFO L262 TraceCheckSpWp]: Trace formula consists of 571 conjuncts, 6 conjunts are in the unsatisfiable core [2023-12-16 11:10:55,851 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-16 11:10:56,771 INFO L134 CoverageAnalysis]: Checked inductivity of 5940 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 5940 trivial. 0 not checked. [2023-12-16 11:10:56,771 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-12-16 11:10:56,772 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleCvc4 [1844038935] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-16 11:10:56,772 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2023-12-16 11:10:56,772 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [6] total 10 [2023-12-16 11:10:56,772 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1393531582] [2023-12-16 11:10:56,772 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-16 11:10:56,773 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2023-12-16 11:10:56,773 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-12-16 11:10:56,773 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2023-12-16 11:10:56,773 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=41, Invalid=141, Unknown=0, NotChecked=0, Total=182 [2023-12-16 11:10:56,773 INFO L87 Difference]: Start difference. First operand 719 states and 1217 transitions. Second operand has 7 states, 7 states have (on average 10.571428571428571) internal successors, (74), 6 states have internal predecessors, (74), 1 states have call successors, (55), 1 states have call predecessors, (55), 1 states have return successors, (55), 1 states have call predecessors, (55), 1 states have call successors, (55) [2023-12-16 11:11:03,337 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.80s for a HTC check with result INVALID. Formula has sorts [Bool, FloatingPoint, RoundingMode, Real, BitVec], hasArrays=false, hasNonlinArith=false, quantifiers [] [2023-12-16 11:11:07,722 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.08s for a HTC check with result UNKNOWN. Formula has sorts [Bool, FloatingPoint, RoundingMode, Real, BitVec], hasArrays=false, hasNonlinArith=false, quantifiers [] [2023-12-16 11:11:09,009 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.29s for a HTC check with result INVALID. Formula has sorts [Bool, FloatingPoint, RoundingMode, Real, BitVec], hasArrays=false, hasNonlinArith=false, quantifiers [] [2023-12-16 11:11:11,443 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.29s for a HTC check with result INVALID. Formula has sorts [Bool, FloatingPoint, RoundingMode, Real, BitVec], hasArrays=false, hasNonlinArith=false, quantifiers [] [2023-12-16 11:11:13,511 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.86s for a HTC check with result INVALID. Formula has sorts [Bool, FloatingPoint, RoundingMode, Real, BitVec], hasArrays=false, hasNonlinArith=false, quantifiers [0] [2023-12-16 11:11:17,095 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-16 11:11:17,096 INFO L93 Difference]: Finished difference Result 1965 states and 3322 transitions. [2023-12-16 11:11:17,096 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2023-12-16 11:11:17,096 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 10.571428571428571) internal successors, (74), 6 states have internal predecessors, (74), 1 states have call successors, (55), 1 states have call predecessors, (55), 1 states have return successors, (55), 1 states have call predecessors, (55), 1 states have call successors, (55) Word has length 346 [2023-12-16 11:11:17,097 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-16 11:11:17,102 INFO L225 Difference]: With dead ends: 1965 [2023-12-16 11:11:17,102 INFO L226 Difference]: Without dead ends: 1293 [2023-12-16 11:11:17,104 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 874 GetRequests, 859 SyntacticMatches, 0 SemanticMatches, 15 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 46 ImplicationChecksByTransitivity, 0.6s TimeCoverageRelationStatistics Valid=63, Invalid=209, Unknown=0, NotChecked=0, Total=272 [2023-12-16 11:11:17,105 INFO L413 NwaCegarLoop]: 491 mSDtfsCounter, 856 mSDsluCounter, 974 mSDsCounter, 0 mSdLazyCounter, 523 mSolverCounterSat, 312 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 19.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 856 SdHoareTripleChecker+Valid, 1465 SdHoareTripleChecker+Invalid, 836 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 312 IncrementalHoareTripleChecker+Valid, 523 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 19.9s IncrementalHoareTripleChecker+Time [2023-12-16 11:11:17,105 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [856 Valid, 1465 Invalid, 836 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [312 Valid, 523 Invalid, 1 Unknown, 0 Unchecked, 19.9s Time] [2023-12-16 11:11:17,106 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1293 states. [2023-12-16 11:11:17,159 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1293 to 1023. [2023-12-16 11:11:17,160 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1023 states, 733 states have (on average 1.6125511596180082) internal successors, (1182), 738 states have internal predecessors, (1182), 272 states have call successors, (272), 17 states have call predecessors, (272), 17 states have return successors, (272), 267 states have call predecessors, (272), 272 states have call successors, (272) [2023-12-16 11:11:17,167 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1023 states to 1023 states and 1726 transitions. [2023-12-16 11:11:17,168 INFO L78 Accepts]: Start accepts. Automaton has 1023 states and 1726 transitions. Word has length 346 [2023-12-16 11:11:17,168 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-16 11:11:17,168 INFO L495 AbstractCegarLoop]: Abstraction has 1023 states and 1726 transitions. [2023-12-16 11:11:17,174 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 10.571428571428571) internal successors, (74), 6 states have internal predecessors, (74), 1 states have call successors, (55), 1 states have call predecessors, (55), 1 states have return successors, (55), 1 states have call predecessors, (55), 1 states have call successors, (55) [2023-12-16 11:11:17,174 INFO L276 IsEmpty]: Start isEmpty. Operand 1023 states and 1726 transitions. [2023-12-16 11:11:17,176 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 347 [2023-12-16 11:11:17,176 INFO L187 NwaCegarLoop]: Found error trace [2023-12-16 11:11:17,176 INFO L195 NwaCegarLoop]: trace histogram [55, 55, 55, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 11:11:17,200 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 (11)] Forceful destruction successful, exit code 0 [2023-12-16 11:11:17,407 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/cvc4 --incremental --print-success --lang smt (12)] Forceful destruction successful, exit code 0 [2023-12-16 11:11:17,594 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 11 /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=3,12 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/cvc4 --incremental --print-success --lang smt [2023-12-16 11:11:17,594 INFO L420 AbstractCegarLoop]: === Iteration 7 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-16 11:11:17,595 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-16 11:11:17,595 INFO L85 PathProgramCache]: Analyzing trace with hash 1630302423, now seen corresponding path program 1 times [2023-12-16 11:11:17,595 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-12-16 11:11:17,595 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1234041226] [2023-12-16 11:11:17,596 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-16 11:11:17,596 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 11:11:17,596 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2023-12-16 11:11:17,596 INFO L229 MonitoredProcess]: Starting monitored process 13 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 11:11:17,597 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 (13)] Waiting until timeout for monitored process [2023-12-16 11:11:18,170 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 11:11:18,203 INFO L262 TraceCheckSpWp]: Trace formula consists of 570 conjuncts, 6 conjunts are in the unsatisfiable core [2023-12-16 11:11:18,208 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-16 11:11:19,793 INFO L134 CoverageAnalysis]: Checked inductivity of 5940 backedges. 3012 proven. 75 refuted. 0 times theorem prover too weak. 2853 trivial. 0 not checked. [2023-12-16 11:11:19,793 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-12-16 11:11:20,102 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-12-16 11:11:20,103 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1234041226] [2023-12-16 11:11:20,103 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1234041226] provided 0 perfect and 1 imperfect interpolant sequences [2023-12-16 11:11:20,103 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleCvc4 [690340364] [2023-12-16 11:11:20,103 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-16 11:11:20,103 INFO L173 SolverBuilder]: Constructing external solver with command: cvc4 --incremental --print-success --lang smt [2023-12-16 11:11:20,103 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/cvc4 [2023-12-16 11:11:20,104 INFO L229 MonitoredProcess]: Starting monitored process 14 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/cvc4 --incremental --print-success --lang smt (exit command is (exit), workingDir is null) [2023-12-16 11:11:20,116 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/cvc4 --incremental --print-success --lang smt (14)] Waiting until timeout for monitored process [2023-12-16 11:11:21,665 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 11:11:21,721 INFO L262 TraceCheckSpWp]: Trace formula consists of 570 conjuncts, 7 conjunts are in the unsatisfiable core [2023-12-16 11:11:21,726 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-16 11:11:23,260 INFO L134 CoverageAnalysis]: Checked inductivity of 5940 backedges. 3012 proven. 75 refuted. 0 times theorem prover too weak. 2853 trivial. 0 not checked. [2023-12-16 11:11:23,260 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-12-16 11:11:23,480 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleCvc4 [690340364] provided 0 perfect and 1 imperfect interpolant sequences [2023-12-16 11:11:23,480 INFO L185 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2023-12-16 11:11:23,480 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [6, 6] total 7 [2023-12-16 11:11:23,481 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1026959877] [2023-12-16 11:11:23,481 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2023-12-16 11:11:23,481 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2023-12-16 11:11:23,481 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-12-16 11:11:23,482 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2023-12-16 11:11:23,482 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=42, Invalid=114, Unknown=0, NotChecked=0, Total=156 [2023-12-16 11:11:23,482 INFO L87 Difference]: Start difference. First operand 1023 states and 1726 transitions. Second operand has 8 states, 8 states have (on average 10.5) internal successors, (84), 7 states have internal predecessors, (84), 2 states have call successors, (55), 2 states have call predecessors, (55), 3 states have return successors, (55), 2 states have call predecessors, (55), 2 states have call successors, (55) Received shutdown request... [2023-12-16 11:11:24,351 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2023-12-16 11:11:24,351 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 917 GetRequests, 903 SyntacticMatches, 0 SemanticMatches, 14 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 40 ImplicationChecksByTransitivity, 0.5s TimeCoverageRelationStatistics Valid=75, Invalid=165, Unknown=0, NotChecked=0, Total=240 [2023-12-16 11:11:24,352 INFO L413 NwaCegarLoop]: 36 mSDtfsCounter, 45 mSDsluCounter, 34 mSDsCounter, 0 mSdLazyCounter, 167 mSolverCounterSat, 11 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 68 SdHoareTripleChecker+Valid, 70 SdHoareTripleChecker+Invalid, 178 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 11 IncrementalHoareTripleChecker+Valid, 167 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.7s IncrementalHoareTripleChecker+Time [2023-12-16 11:11:24,352 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [68 Valid, 70 Invalid, 178 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [11 Valid, 167 Invalid, 0 Unknown, 0 Unchecked, 0.7s Time] [2023-12-16 11:11:24,353 INFO L805 garLoopResultBuilder]: Registering result TIMEOUT for location ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION (0 of 1 remaining) [2023-12-16 11:11:24,355 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 11:11:24,361 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 (13)] Timeout while monitored process is still running, waiting 1000 ms for graceful end [2023-12-16 11:11:24,372 WARN L340 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/cvc4 --incremental --print-success --lang smt (14)] Timeout while monitored process is still running, waiting 1000 ms for graceful end [2023-12-16 11:11:24,387 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/cvc4 --incremental --print-success --lang smt (14)] Forceful destruction successful, exit code 0 [2023-12-16 11:11:24,573 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 (13)] Forceful destruction successful, exit code 0 [2023-12-16 11:11:24,754 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 14 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/cvc4 --incremental --print-success --lang smt,13 /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 11:11:24,755 WARN L619 AbstractCegarLoop]: Verification canceled: while NwaCegarLoop was constructing difference of abstraction (1023states) and FLOYD_HOARE automaton (currently 6 states, 8 states before enhancement),while ReachableStatesComputation was computing reachable states (49 states constructed, input type IntersectNwa). [2023-12-16 11:11:24,758 INFO L445 BasicCegarLoop]: Path program histogram: [1, 1, 1, 1, 1, 1, 1] [2023-12-16 11:11:24,759 INFO L179 ceAbstractionStarter]: Computing trace abstraction results [2023-12-16 11:11:24,760 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 16.12 11:11:24 BoogieIcfgContainer [2023-12-16 11:11:24,760 INFO L131 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2023-12-16 11:11:24,761 INFO L158 Benchmark]: Toolchain (without parser) took 72980.75ms. Allocated memory is still 263.2MB. Free memory was 208.8MB in the beginning and 139.9MB in the end (delta: 68.9MB). Peak memory consumption was 69.9MB. Max. memory is 8.0GB. [2023-12-16 11:11:24,761 INFO L158 Benchmark]: CDTParser took 0.41ms. Allocated memory is still 195.0MB. Free memory is still 143.7MB. There was no memory consumed. Max. memory is 8.0GB. [2023-12-16 11:11:24,761 INFO L158 Benchmark]: CACSL2BoogieTranslator took 309.24ms. Allocated memory is still 263.2MB. Free memory was 208.8MB in the beginning and 187.3MB in the end (delta: 21.5MB). Peak memory consumption was 21.0MB. Max. memory is 8.0GB. [2023-12-16 11:11:24,761 INFO L158 Benchmark]: Boogie Procedure Inliner took 50.35ms. Allocated memory is still 263.2MB. Free memory was 187.3MB in the beginning and 183.6MB in the end (delta: 3.7MB). Peak memory consumption was 4.2MB. Max. memory is 8.0GB. [2023-12-16 11:11:24,761 INFO L158 Benchmark]: Boogie Preprocessor took 53.78ms. Allocated memory is still 263.2MB. Free memory was 183.6MB in the beginning and 177.9MB in the end (delta: 5.8MB). Peak memory consumption was 5.2MB. Max. memory is 8.0GB. [2023-12-16 11:11:24,761 INFO L158 Benchmark]: RCFGBuilder took 11402.87ms. Allocated memory is still 263.2MB. Free memory was 177.9MB in the beginning and 218.2MB in the end (delta: -40.3MB). Peak memory consumption was 43.1MB. Max. memory is 8.0GB. [2023-12-16 11:11:24,762 INFO L158 Benchmark]: TraceAbstraction took 61156.47ms. Allocated memory is still 263.2MB. Free memory was 217.7MB in the beginning and 139.9MB in the end (delta: 77.7MB). Peak memory consumption was 78.3MB. Max. memory is 8.0GB. [2023-12-16 11:11:24,762 INFO L338 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.41ms. Allocated memory is still 195.0MB. Free memory is still 143.7MB. There was no memory consumed. Max. memory is 8.0GB. * CACSL2BoogieTranslator took 309.24ms. Allocated memory is still 263.2MB. Free memory was 208.8MB in the beginning and 187.3MB in the end (delta: 21.5MB). Peak memory consumption was 21.0MB. Max. memory is 8.0GB. * Boogie Procedure Inliner took 50.35ms. Allocated memory is still 263.2MB. Free memory was 187.3MB in the beginning and 183.6MB in the end (delta: 3.7MB). Peak memory consumption was 4.2MB. Max. memory is 8.0GB. * Boogie Preprocessor took 53.78ms. Allocated memory is still 263.2MB. Free memory was 183.6MB in the beginning and 177.9MB in the end (delta: 5.8MB). Peak memory consumption was 5.2MB. Max. memory is 8.0GB. * RCFGBuilder took 11402.87ms. Allocated memory is still 263.2MB. Free memory was 177.9MB in the beginning and 218.2MB in the end (delta: -40.3MB). Peak memory consumption was 43.1MB. Max. memory is 8.0GB. * TraceAbstraction took 61156.47ms. Allocated memory is still 263.2MB. Free memory was 217.7MB in the beginning and 139.9MB in the end (delta: 77.7MB). Peak memory consumption was 78.3MB. 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 constructing difference of abstraction (1023states) and FLOYD_HOARE automaton (currently 6 states, 8 states before enhancement),while ReachableStatesComputation was computing reachable states (49 states constructed, input type IntersectNwa). - StatisticsResult: Ultimate Automizer benchmark data CFG has 2 procedures, 160 locations, 1 error locations. Started 1 CEGAR loops. OverallTime: 61.1s, OverallIterations: 7, TraceHistogramMax: 55, PathProgramHistogramMax: 1, EmptinessCheckTime: 0.0s, AutomataDifference: 31.9s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 1 mSolverCounterUnknown, 2024 SdHoareTripleChecker+Valid, 31.0s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 2001 mSDsluCounter, 4501 SdHoareTripleChecker+Invalid, 29.8s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 2170 mSDsCounter, 390 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 1037 IncrementalHoareTripleChecker+Invalid, 1428 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 390 mSolverCounterUnsat, 2331 mSDtfsCounter, 1037 mSolverCounterSat, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Unknown, PredicateUnifierStatistics: 0 DeclaredPredicates, 5068 GetRequests, 5013 SyntacticMatches, 0 SemanticMatches, 55 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 113 ImplicationChecksByTransitivity, 1.6s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=1023occurred in iteration=6, InterpolantAutomatonStates: 25, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: 0.2s AutomataMinimizationTime, 6 MinimizatonAttempts, 604 StatesRemovedByMinimization, 5 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.5s SsaConstructionTime, 10.0s SatisfiabilityAnalysisTime, 15.1s InterpolantComputationTime, 4498 NumberOfCodeBlocks, 4498 NumberOfCodeBlocksAsserted, 13 NumberOfCheckSat, 4485 ConstructedInterpolants, 5 QuantifiedInterpolants, 14508 SizeOfPredicates, 37 NumberOfNonLiveVariables, 7437 ConjunctsInSsa, 57 ConjunctsInUnsatCore, 13 InterpolantComputations, 6 PerfectInterpolantSequences, 76695/77220 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