/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-100_file-74.i -------------------------------------------------------------------------------- This is Ultimate 0.2.4-tmp.fs.bitabs-eval-d9c3e40-m [2023-12-16 10:50:03,220 INFO L188 SettingsManager]: Resetting all preferences to default values... [2023-12-16 10:50:03,276 INFO L114 SettingsManager]: Loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/settings/default/automizer/svcomp-Reach-32bit-Automizer_Bitvector.epf [2023-12-16 10:50:03,279 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2023-12-16 10:50:03,279 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2023-12-16 10:50:03,293 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2023-12-16 10:50:03,293 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2023-12-16 10:50:03,293 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2023-12-16 10:50:03,294 INFO L151 SettingsManager]: Preferences of Boogie Preprocessor differ from their defaults: [2023-12-16 10:50:03,294 INFO L153 SettingsManager]: * Use memory slicer=true [2023-12-16 10:50:03,294 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2023-12-16 10:50:03,294 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2023-12-16 10:50:03,295 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2023-12-16 10:50:03,295 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2023-12-16 10:50:03,295 INFO L153 SettingsManager]: * Use SBE=true [2023-12-16 10:50:03,295 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2023-12-16 10:50:03,296 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2023-12-16 10:50:03,296 INFO L153 SettingsManager]: * sizeof long=4 [2023-12-16 10:50:03,296 INFO L153 SettingsManager]: * sizeof POINTER=4 [2023-12-16 10:50:03,296 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2023-12-16 10:50:03,296 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2023-12-16 10:50:03,297 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2023-12-16 10:50:03,297 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2023-12-16 10:50:03,297 INFO L153 SettingsManager]: * Adapt memory model on pointer casts if necessary=true [2023-12-16 10:50:03,298 INFO L153 SettingsManager]: * Use bitvectors instead of ints=true [2023-12-16 10:50:03,298 INFO L153 SettingsManager]: * Allow undefined functions=false [2023-12-16 10:50:03,298 INFO L153 SettingsManager]: * Memory model=HoenickeLindenmann_4ByteResolution [2023-12-16 10:50:03,298 INFO L153 SettingsManager]: * sizeof long double=12 [2023-12-16 10:50:03,298 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2023-12-16 10:50:03,299 INFO L153 SettingsManager]: * Use constant arrays=true [2023-12-16 10:50:03,299 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2023-12-16 10:50:03,299 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2023-12-16 10:50:03,299 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2023-12-16 10:50:03,299 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2023-12-16 10:50:03,300 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2023-12-16 10:50:03,300 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2023-12-16 10:50:03,300 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2023-12-16 10:50:03,300 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2023-12-16 10:50:03,300 INFO L153 SettingsManager]: * Trace refinement strategy=WOLF [2023-12-16 10:50:03,301 INFO L153 SettingsManager]: * Command for external solver=cvc4 --incremental --print-success --lang smt [2023-12-16 10:50:03,301 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2023-12-16 10:50:03,301 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2023-12-16 10:50:03,301 INFO L153 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2023-12-16 10:50:03,301 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2023-12-16 10:50:03,302 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2023-12-16 10:50:03,302 INFO L153 SettingsManager]: * Logic for external solver=AUFBV [2023-12-16 10:50:03,302 INFO L153 SettingsManager]: * Looper check in Petri net analysis=SEMANTIC WARNING: An illegal reflective access operation has occurred WARNING: Illegal reflective access by com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 (file:/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/plugins/com.sun.xml.bind_2.2.0.v201505121915.jar) to method java.lang.ClassLoader.defineClass(java.lang.String,byte[],int,int) WARNING: Please consider reporting this to the maintainers of com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release [2023-12-16 10:50:03,464 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2023-12-16 10:50:03,477 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2023-12-16 10:50:03,478 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2023-12-16 10:50:03,479 INFO L270 PluginConnector]: Initializing CDTParser... [2023-12-16 10:50:03,479 INFO L274 PluginConnector]: CDTParser initialized [2023-12-16 10:50:03,480 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/hardness-nfm22/hardness_fillercode_fillercodesize_ps-cn-100_file-74.i [2023-12-16 10:50:04,456 INFO L533 CDTParser]: Created temporary CDT project at NULL [2023-12-16 10:50:04,620 INFO L384 CDTParser]: Found 1 translation units. [2023-12-16 10:50:04,620 INFO L180 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/hardness-nfm22/hardness_fillercode_fillercodesize_ps-cn-100_file-74.i [2023-12-16 10:50:04,636 INFO L427 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/1be53f5d8/57e4cabe322448b2b2d4efdad8b9f833/FLAG412aa002d [2023-12-16 10:50:04,648 INFO L435 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/1be53f5d8/57e4cabe322448b2b2d4efdad8b9f833 [2023-12-16 10:50:04,649 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2023-12-16 10:50:04,650 INFO L133 ToolchainWalker]: Walking toolchain with 5 elements. [2023-12-16 10:50:04,651 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2023-12-16 10:50:04,651 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2023-12-16 10:50:04,657 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2023-12-16 10:50:04,657 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 16.12 10:50:04" (1/1) ... [2023-12-16 10:50:04,658 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@1069f7f0 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.12 10:50:04, skipping insertion in model container [2023-12-16 10:50:04,658 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 16.12 10:50:04" (1/1) ... [2023-12-16 10:50:04,685 INFO L177 MainTranslator]: Built tables and reachable declarations [2023-12-16 10:50:04,785 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-100_file-74.i[916,929] [2023-12-16 10:50:04,845 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-12-16 10:50:04,859 INFO L202 MainTranslator]: Completed pre-run [2023-12-16 10:50:04,867 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-100_file-74.i[916,929] [2023-12-16 10:50:04,899 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-12-16 10:50:04,911 INFO L206 MainTranslator]: Completed translation [2023-12-16 10:50:04,912 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.12 10:50:04 WrapperNode [2023-12-16 10:50:04,912 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2023-12-16 10:50:04,913 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2023-12-16 10:50:04,913 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2023-12-16 10:50:04,913 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2023-12-16 10:50:04,917 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.12 10:50:04" (1/1) ... [2023-12-16 10:50:04,931 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.12 10:50:04" (1/1) ... [2023-12-16 10:50:04,958 INFO L138 Inliner]: procedures = 27, calls = 69, calls flagged for inlining = 8, calls inlined = 8, statements flattened = 302 [2023-12-16 10:50:04,958 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2023-12-16 10:50:04,959 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2023-12-16 10:50:04,959 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2023-12-16 10:50:04,959 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2023-12-16 10:50:04,969 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.12 10:50:04" (1/1) ... [2023-12-16 10:50:04,970 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.12 10:50:04" (1/1) ... [2023-12-16 10:50:04,975 INFO L184 PluginConnector]: Executing the observer MemorySlicer from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.12 10:50:04" (1/1) ... [2023-12-16 10:50:04,996 INFO L175 MemorySlicer]: Split 2 memory accesses to 1 slices as follows [2]. 100 percent of accesses are in the largest equivalence class. The 2 initializations are split as follows [2]. The 0 writes are split as follows [0]. [2023-12-16 10:50:04,996 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.12 10:50:04" (1/1) ... [2023-12-16 10:50:04,996 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.12 10:50:04" (1/1) ... [2023-12-16 10:50:05,005 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.12 10:50:04" (1/1) ... [2023-12-16 10:50:05,008 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.12 10:50:04" (1/1) ... [2023-12-16 10:50:05,010 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.12 10:50:04" (1/1) ... [2023-12-16 10:50:05,011 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.12 10:50:04" (1/1) ... [2023-12-16 10:50:05,015 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2023-12-16 10:50:05,016 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2023-12-16 10:50:05,016 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2023-12-16 10:50:05,016 INFO L274 PluginConnector]: RCFGBuilder initialized [2023-12-16 10:50:05,016 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.12 10:50:04" (1/1) ... [2023-12-16 10:50:05,032 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2023-12-16 10:50:05,042 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-12-16 10:50:05,052 INFO L229 MonitoredProcess]: Starting monitored process 1 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (exit command is (exit), workingDir is null) [2023-12-16 10:50:05,057 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (1)] Waiting until timeout for monitored process [2023-12-16 10:50:05,071 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2023-12-16 10:50:05,071 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE1#0 [2023-12-16 10:50:05,071 INFO L130 BoogieDeclarations]: Found specification of procedure assume_abort_if_not [2023-12-16 10:50:05,071 INFO L138 BoogieDeclarations]: Found implementation of procedure assume_abort_if_not [2023-12-16 10:50:05,072 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2023-12-16 10:50:05,072 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2023-12-16 10:50:05,136 INFO L241 CfgBuilder]: Building ICFG [2023-12-16 10:50:05,138 INFO L267 CfgBuilder]: Building CFG for each procedure with an implementation [2023-12-16 10:50:07,227 INFO L282 CfgBuilder]: Performing block encoding [2023-12-16 10:50:07,276 INFO L304 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2023-12-16 10:50:07,276 INFO L309 CfgBuilder]: Removed 1 assume(true) statements. [2023-12-16 10:50:07,276 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 16.12 10:50:07 BoogieIcfgContainer [2023-12-16 10:50:07,276 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2023-12-16 10:50:07,278 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2023-12-16 10:50:07,278 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2023-12-16 10:50:07,280 INFO L274 PluginConnector]: TraceAbstraction initialized [2023-12-16 10:50:07,280 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 16.12 10:50:04" (1/3) ... [2023-12-16 10:50:07,280 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@52edc67e and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 16.12 10:50:07, skipping insertion in model container [2023-12-16 10:50:07,281 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.12 10:50:04" (2/3) ... [2023-12-16 10:50:07,281 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@52edc67e and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 16.12 10:50:07, skipping insertion in model container [2023-12-16 10:50:07,281 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 16.12 10:50:07" (3/3) ... [2023-12-16 10:50:07,282 INFO L112 eAbstractionObserver]: Analyzing ICFG hardness_fillercode_fillercodesize_ps-cn-100_file-74.i [2023-12-16 10:50:07,301 INFO L204 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2023-12-16 10:50:07,301 INFO L163 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2023-12-16 10:50:07,347 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2023-12-16 10:50:07,351 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;@2de213e2, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2023-12-16 10:50:07,351 INFO L358 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2023-12-16 10:50:07,354 INFO L276 IsEmpty]: Start isEmpty. Operand has 134 states, 75 states have (on average 1.48) internal successors, (111), 76 states have internal predecessors, (111), 56 states have call successors, (56), 1 states have call predecessors, (56), 1 states have return successors, (56), 56 states have call predecessors, (56), 56 states have call successors, (56) [2023-12-16 10:50:07,371 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 338 [2023-12-16 10:50:07,371 INFO L187 NwaCegarLoop]: Found error trace [2023-12-16 10:50:07,372 INFO L195 NwaCegarLoop]: trace histogram [56, 56, 56, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-16 10:50:07,372 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-16 10:50:07,375 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-16 10:50:07,375 INFO L85 PathProgramCache]: Analyzing trace with hash 1481943140, now seen corresponding path program 1 times [2023-12-16 10:50:07,385 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-12-16 10:50:07,385 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1338325663] [2023-12-16 10:50:07,385 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-16 10:50:07,385 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2023-12-16 10:50:07,385 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2023-12-16 10:50:07,387 INFO L229 MonitoredProcess]: Starting monitored process 2 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2023-12-16 10:50:07,391 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (2)] Waiting until timeout for monitored process [2023-12-16 10:50:07,810 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 10:50:07,830 INFO L262 TraceCheckSpWp]: Trace formula consists of 530 conjuncts, 1 conjunts are in the unsatisfiable core [2023-12-16 10:50:07,847 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-16 10:50:07,903 INFO L134 CoverageAnalysis]: Checked inductivity of 6160 backedges. 110 proven. 0 refuted. 0 times theorem prover too weak. 6050 trivial. 0 not checked. [2023-12-16 10:50:07,904 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-12-16 10:50:07,904 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-12-16 10:50:07,904 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1338325663] [2023-12-16 10:50:07,905 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1338325663] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-16 10:50:07,905 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-16 10:50:07,905 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2023-12-16 10:50:07,906 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1432748283] [2023-12-16 10:50:07,906 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-16 10:50:07,910 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2023-12-16 10:50:07,910 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-12-16 10:50:07,933 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2023-12-16 10:50:07,934 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2023-12-16 10:50:07,937 INFO L87 Difference]: Start difference. First operand has 134 states, 75 states have (on average 1.48) internal successors, (111), 76 states have internal predecessors, (111), 56 states have call successors, (56), 1 states have call predecessors, (56), 1 states have return successors, (56), 56 states have call predecessors, (56), 56 states have call successors, (56) Second operand has 2 states, 2 states have (on average 31.0) internal successors, (62), 2 states have internal predecessors, (62), 1 states have call successors, (56), 1 states have call predecessors, (56), 2 states have return successors, (56), 2 states have call predecessors, (56), 1 states have call successors, (56) [2023-12-16 10:50:09,264 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.28s for a HTC check with result INVALID. Formula has sorts [Bool, FloatingPoint, RoundingMode, BitVec], hasArrays=false, hasNonlinArith=false, quantifiers [] [2023-12-16 10:50:09,265 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-16 10:50:09,265 INFO L93 Difference]: Finished difference Result 264 states and 498 transitions. [2023-12-16 10:50:09,289 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2023-12-16 10:50:09,291 INFO L78 Accepts]: Start accepts. Automaton has has 2 states, 2 states have (on average 31.0) internal successors, (62), 2 states have internal predecessors, (62), 1 states have call successors, (56), 1 states have call predecessors, (56), 2 states have return successors, (56), 2 states have call predecessors, (56), 1 states have call successors, (56) Word has length 337 [2023-12-16 10:50:09,291 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-16 10:50:09,296 INFO L225 Difference]: With dead ends: 264 [2023-12-16 10:50:09,296 INFO L226 Difference]: Without dead ends: 131 [2023-12-16 10:50:09,299 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 336 GetRequests, 336 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 10:50:09,301 INFO L413 NwaCegarLoop]: 211 mSDtfsCounter, 0 mSDsluCounter, 0 mSDsCounter, 0 mSdLazyCounter, 3 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 211 SdHoareTripleChecker+Invalid, 3 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 3 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.3s IncrementalHoareTripleChecker+Time [2023-12-16 10:50:09,302 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 211 Invalid, 3 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 3 Invalid, 0 Unknown, 0 Unchecked, 1.3s Time] [2023-12-16 10:50:09,312 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 131 states. [2023-12-16 10:50:09,335 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 131 to 131. [2023-12-16 10:50:09,336 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 131 states, 73 states have (on average 1.3972602739726028) internal successors, (102), 73 states have internal predecessors, (102), 56 states have call successors, (56), 1 states have call predecessors, (56), 1 states have return successors, (56), 56 states have call predecessors, (56), 56 states have call successors, (56) [2023-12-16 10:50:09,338 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 131 states to 131 states and 214 transitions. [2023-12-16 10:50:09,338 INFO L78 Accepts]: Start accepts. Automaton has 131 states and 214 transitions. Word has length 337 [2023-12-16 10:50:09,339 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-16 10:50:09,339 INFO L495 AbstractCegarLoop]: Abstraction has 131 states and 214 transitions. [2023-12-16 10:50:09,339 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 2 states, 2 states have (on average 31.0) internal successors, (62), 2 states have internal predecessors, (62), 1 states have call successors, (56), 1 states have call predecessors, (56), 2 states have return successors, (56), 2 states have call predecessors, (56), 1 states have call successors, (56) [2023-12-16 10:50:09,339 INFO L276 IsEmpty]: Start isEmpty. Operand 131 states and 214 transitions. [2023-12-16 10:50:09,343 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 338 [2023-12-16 10:50:09,343 INFO L187 NwaCegarLoop]: Found error trace [2023-12-16 10:50:09,344 INFO L195 NwaCegarLoop]: trace histogram [56, 56, 56, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-16 10:50:09,358 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (2)] Forceful destruction successful, exit code 0 [2023-12-16 10:50:09,553 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2023-12-16 10:50:09,554 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-16 10:50:09,554 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-16 10:50:09,554 INFO L85 PathProgramCache]: Analyzing trace with hash -653550678, now seen corresponding path program 1 times [2023-12-16 10:50:09,555 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-12-16 10:50:09,555 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1911170125] [2023-12-16 10:50:09,555 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-16 10:50:09,555 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2023-12-16 10:50:09,555 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2023-12-16 10:50:09,559 INFO L229 MonitoredProcess]: Starting monitored process 3 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2023-12-16 10:50:09,560 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (3)] Waiting until timeout for monitored process [2023-12-16 10:50:09,934 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 10:50:09,956 INFO L262 TraceCheckSpWp]: Trace formula consists of 530 conjuncts, 2 conjunts are in the unsatisfiable core [2023-12-16 10:50:09,963 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-16 10:50:10,012 INFO L134 CoverageAnalysis]: Checked inductivity of 6160 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 6160 trivial. 0 not checked. [2023-12-16 10:50:10,013 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-12-16 10:50:10,013 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-12-16 10:50:10,013 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1911170125] [2023-12-16 10:50:10,013 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1911170125] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-16 10:50:10,013 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-16 10:50:10,014 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2023-12-16 10:50:10,014 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [603682191] [2023-12-16 10:50:10,014 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-16 10:50:10,016 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-12-16 10:50:10,017 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-12-16 10:50:10,018 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-12-16 10:50:10,018 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-12-16 10:50:10,018 INFO L87 Difference]: Start difference. First operand 131 states and 214 transitions. Second operand has 3 states, 3 states have (on average 20.0) internal successors, (60), 3 states have internal predecessors, (60), 1 states have call successors, (56), 1 states have call predecessors, (56), 1 states have return successors, (56), 1 states have call predecessors, (56), 1 states have call successors, (56) [2023-12-16 10:50:11,131 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.04s for a HTC check with result INVALID. Formula has sorts [Bool, FloatingPoint, RoundingMode, BitVec], hasArrays=false, hasNonlinArith=false, quantifiers [] [2023-12-16 10:50:11,231 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-16 10:50:11,231 INFO L93 Difference]: Finished difference Result 343 states and 559 transitions. [2023-12-16 10:50:11,232 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-12-16 10:50:11,232 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 20.0) internal successors, (60), 3 states have internal predecessors, (60), 1 states have call successors, (56), 1 states have call predecessors, (56), 1 states have return successors, (56), 1 states have call predecessors, (56), 1 states have call successors, (56) Word has length 337 [2023-12-16 10:50:11,233 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-16 10:50:11,235 INFO L225 Difference]: With dead ends: 343 [2023-12-16 10:50:11,235 INFO L226 Difference]: Without dead ends: 213 [2023-12-16 10:50:11,236 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 336 GetRequests, 335 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-12-16 10:50:11,237 INFO L413 NwaCegarLoop]: 333 mSDtfsCounter, 132 mSDsluCounter, 198 mSDsCounter, 0 mSdLazyCounter, 17 mSolverCounterSat, 3 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 132 SdHoareTripleChecker+Valid, 531 SdHoareTripleChecker+Invalid, 20 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 3 IncrementalHoareTripleChecker+Valid, 17 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.2s IncrementalHoareTripleChecker+Time [2023-12-16 10:50:11,237 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [132 Valid, 531 Invalid, 20 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [3 Valid, 17 Invalid, 0 Unknown, 0 Unchecked, 1.2s Time] [2023-12-16 10:50:11,238 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 213 states. [2023-12-16 10:50:11,257 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 213 to 210. [2023-12-16 10:50:11,258 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 210 states, 123 states have (on average 1.4146341463414633) internal successors, (174), 124 states have internal predecessors, (174), 84 states have call successors, (84), 2 states have call predecessors, (84), 2 states have return successors, (84), 83 states have call predecessors, (84), 84 states have call successors, (84) [2023-12-16 10:50:11,259 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 210 states to 210 states and 342 transitions. [2023-12-16 10:50:11,259 INFO L78 Accepts]: Start accepts. Automaton has 210 states and 342 transitions. Word has length 337 [2023-12-16 10:50:11,260 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-16 10:50:11,260 INFO L495 AbstractCegarLoop]: Abstraction has 210 states and 342 transitions. [2023-12-16 10:50:11,260 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 20.0) internal successors, (60), 3 states have internal predecessors, (60), 1 states have call successors, (56), 1 states have call predecessors, (56), 1 states have return successors, (56), 1 states have call predecessors, (56), 1 states have call successors, (56) [2023-12-16 10:50:11,260 INFO L276 IsEmpty]: Start isEmpty. Operand 210 states and 342 transitions. [2023-12-16 10:50:11,263 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 338 [2023-12-16 10:50:11,263 INFO L187 NwaCegarLoop]: Found error trace [2023-12-16 10:50:11,263 INFO L195 NwaCegarLoop]: trace histogram [56, 56, 56, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-16 10:50:11,282 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (3)] Ended with exit code 0 [2023-12-16 10:50:11,482 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 3 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2023-12-16 10:50:11,483 INFO L420 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-16 10:50:11,483 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-16 10:50:11,483 INFO L85 PathProgramCache]: Analyzing trace with hash -230848852, now seen corresponding path program 1 times [2023-12-16 10:50:11,484 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-12-16 10:50:11,484 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [650211694] [2023-12-16 10:50:11,484 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-16 10:50:11,484 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2023-12-16 10:50:11,484 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2023-12-16 10:50:11,485 INFO L229 MonitoredProcess]: Starting monitored process 4 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2023-12-16 10:50:11,487 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (4)] Waiting until timeout for monitored process [2023-12-16 10:50:11,837 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 10:50:11,858 INFO L262 TraceCheckSpWp]: Trace formula consists of 529 conjuncts, 6 conjunts are in the unsatisfiable core [2023-12-16 10:50:11,864 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-16 10:50:13,510 INFO L134 CoverageAnalysis]: Checked inductivity of 6160 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 6160 trivial. 0 not checked. [2023-12-16 10:50:13,511 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-12-16 10:50:13,511 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-12-16 10:50:13,511 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [650211694] [2023-12-16 10:50:13,511 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [650211694] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-16 10:50:13,511 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-16 10:50:13,511 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2023-12-16 10:50:13,511 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [440228590] [2023-12-16 10:50:13,511 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-16 10:50:13,512 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2023-12-16 10:50:13,512 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-12-16 10:50:13,513 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2023-12-16 10:50:13,513 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2023-12-16 10:50:13,513 INFO L87 Difference]: Start difference. First operand 210 states and 342 transitions. Second operand has 5 states, 5 states have (on average 12.0) internal successors, (60), 4 states have internal predecessors, (60), 1 states have call successors, (56), 1 states have call predecessors, (56), 1 states have return successors, (56), 1 states have call predecessors, (56), 1 states have call successors, (56) [2023-12-16 10:50:15,182 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.13s for a HTC check with result INVALID. Formula has sorts [Bool, FloatingPoint, RoundingMode, BitVec], hasArrays=false, hasNonlinArith=false, quantifiers [] [2023-12-16 10:50:16,410 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.12s for a HTC check with result INVALID. Formula has sorts [Bool, FloatingPoint, RoundingMode, BitVec], hasArrays=false, hasNonlinArith=false, quantifiers [] [2023-12-16 10:50:16,410 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-16 10:50:16,411 INFO L93 Difference]: Finished difference Result 581 states and 950 transitions. [2023-12-16 10:50:16,435 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2023-12-16 10:50:16,436 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 12.0) internal successors, (60), 4 states have internal predecessors, (60), 1 states have call successors, (56), 1 states have call predecessors, (56), 1 states have return successors, (56), 1 states have call predecessors, (56), 1 states have call successors, (56) Word has length 337 [2023-12-16 10:50:16,437 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-16 10:50:16,442 INFO L225 Difference]: With dead ends: 581 [2023-12-16 10:50:16,442 INFO L226 Difference]: Without dead ends: 372 [2023-12-16 10:50:16,443 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 339 GetRequests, 333 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=22, Invalid=34, Unknown=0, NotChecked=0, Total=56 [2023-12-16 10:50:16,444 INFO L413 NwaCegarLoop]: 207 mSDtfsCounter, 154 mSDsluCounter, 500 mSDsCounter, 0 mSdLazyCounter, 147 mSolverCounterSat, 113 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 154 SdHoareTripleChecker+Valid, 707 SdHoareTripleChecker+Invalid, 260 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 113 IncrementalHoareTripleChecker+Valid, 147 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.8s IncrementalHoareTripleChecker+Time [2023-12-16 10:50:16,444 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [154 Valid, 707 Invalid, 260 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [113 Valid, 147 Invalid, 0 Unknown, 0 Unchecked, 2.8s Time] [2023-12-16 10:50:16,444 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 372 states. [2023-12-16 10:50:16,507 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 372 to 340. [2023-12-16 10:50:16,508 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 340 states, 196 states have (on average 1.4183673469387754) internal successors, (278), 197 states have internal predecessors, (278), 140 states have call successors, (140), 3 states have call predecessors, (140), 3 states have return successors, (140), 139 states have call predecessors, (140), 140 states have call successors, (140) [2023-12-16 10:50:16,510 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 340 states to 340 states and 558 transitions. [2023-12-16 10:50:16,510 INFO L78 Accepts]: Start accepts. Automaton has 340 states and 558 transitions. Word has length 337 [2023-12-16 10:50:16,511 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-16 10:50:16,511 INFO L495 AbstractCegarLoop]: Abstraction has 340 states and 558 transitions. [2023-12-16 10:50:16,511 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 12.0) internal successors, (60), 4 states have internal predecessors, (60), 1 states have call successors, (56), 1 states have call predecessors, (56), 1 states have return successors, (56), 1 states have call predecessors, (56), 1 states have call successors, (56) [2023-12-16 10:50:16,511 INFO L276 IsEmpty]: Start isEmpty. Operand 340 states and 558 transitions. [2023-12-16 10:50:16,514 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 339 [2023-12-16 10:50:16,514 INFO L187 NwaCegarLoop]: Found error trace [2023-12-16 10:50:16,514 INFO L195 NwaCegarLoop]: trace histogram [56, 56, 56, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-16 10:50:16,528 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (4)] Forceful destruction successful, exit code 0 [2023-12-16 10:50:16,726 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 4 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2023-12-16 10:50:16,727 INFO L420 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-16 10:50:16,727 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-16 10:50:16,727 INFO L85 PathProgramCache]: Analyzing trace with hash 539655691, now seen corresponding path program 1 times [2023-12-16 10:50:16,728 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-12-16 10:50:16,728 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1052862479] [2023-12-16 10:50:16,728 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-16 10:50:16,728 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2023-12-16 10:50:16,728 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2023-12-16 10:50:16,729 INFO L229 MonitoredProcess]: Starting monitored process 5 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2023-12-16 10:50:16,745 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (5)] Waiting until timeout for monitored process [2023-12-16 10:50:17,074 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 10:50:17,094 INFO L262 TraceCheckSpWp]: Trace formula consists of 531 conjuncts, 6 conjunts are in the unsatisfiable core [2023-12-16 10:50:17,100 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-16 10:50:18,369 INFO L134 CoverageAnalysis]: Checked inductivity of 6160 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 6160 trivial. 0 not checked. [2023-12-16 10:50:18,369 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-12-16 10:50:18,369 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-12-16 10:50:18,369 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1052862479] [2023-12-16 10:50:18,369 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1052862479] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-16 10:50:18,369 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-16 10:50:18,370 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2023-12-16 10:50:18,370 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1716139484] [2023-12-16 10:50:18,370 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-16 10:50:18,370 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2023-12-16 10:50:18,370 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-12-16 10:50:18,371 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2023-12-16 10:50:18,371 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2023-12-16 10:50:18,371 INFO L87 Difference]: Start difference. First operand 340 states and 558 transitions. Second operand has 5 states, 5 states have (on average 12.2) internal successors, (61), 4 states have internal predecessors, (61), 1 states have call successors, (56), 1 states have call predecessors, (56), 1 states have return successors, (56), 1 states have call predecessors, (56), 1 states have call successors, (56) [2023-12-16 10:50:19,892 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.03s for a HTC check with result INVALID. Formula has sorts [Bool, FloatingPoint, RoundingMode, BitVec], hasArrays=false, hasNonlinArith=false, quantifiers [] [2023-12-16 10:50:21,538 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.45s for a HTC check with result INVALID. Formula has sorts [Bool, FloatingPoint, RoundingMode, BitVec], hasArrays=false, hasNonlinArith=false, quantifiers [] [2023-12-16 10:50:21,540 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-16 10:50:21,540 INFO L93 Difference]: Finished difference Result 581 states and 948 transitions. [2023-12-16 10:50:21,566 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2023-12-16 10:50:21,566 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 12.2) internal successors, (61), 4 states have internal predecessors, (61), 1 states have call successors, (56), 1 states have call predecessors, (56), 1 states have return successors, (56), 1 states have call predecessors, (56), 1 states have call successors, (56) Word has length 338 [2023-12-16 10:50:21,569 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-16 10:50:21,572 INFO L225 Difference]: With dead ends: 581 [2023-12-16 10:50:21,572 INFO L226 Difference]: Without dead ends: 372 [2023-12-16 10:50:21,573 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 340 GetRequests, 334 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=22, Invalid=34, Unknown=0, NotChecked=0, Total=56 [2023-12-16 10:50:21,575 INFO L413 NwaCegarLoop]: 208 mSDtfsCounter, 150 mSDsluCounter, 500 mSDsCounter, 0 mSdLazyCounter, 146 mSolverCounterSat, 113 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 3.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 150 SdHoareTripleChecker+Valid, 708 SdHoareTripleChecker+Invalid, 259 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 113 IncrementalHoareTripleChecker+Valid, 146 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 3.1s IncrementalHoareTripleChecker+Time [2023-12-16 10:50:21,576 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [150 Valid, 708 Invalid, 259 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [113 Valid, 146 Invalid, 0 Unknown, 0 Unchecked, 3.1s Time] [2023-12-16 10:50:21,579 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 372 states. [2023-12-16 10:50:21,606 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 372 to 342. [2023-12-16 10:50:21,608 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 342 states, 198 states have (on average 1.4141414141414141) internal successors, (280), 199 states have internal predecessors, (280), 140 states have call successors, (140), 3 states have call predecessors, (140), 3 states have return successors, (140), 139 states have call predecessors, (140), 140 states have call successors, (140) [2023-12-16 10:50:21,610 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 342 states to 342 states and 560 transitions. [2023-12-16 10:50:21,610 INFO L78 Accepts]: Start accepts. Automaton has 342 states and 560 transitions. Word has length 338 [2023-12-16 10:50:21,613 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-16 10:50:21,613 INFO L495 AbstractCegarLoop]: Abstraction has 342 states and 560 transitions. [2023-12-16 10:50:21,613 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 12.2) internal successors, (61), 4 states have internal predecessors, (61), 1 states have call successors, (56), 1 states have call predecessors, (56), 1 states have return successors, (56), 1 states have call predecessors, (56), 1 states have call successors, (56) [2023-12-16 10:50:21,614 INFO L276 IsEmpty]: Start isEmpty. Operand 342 states and 560 transitions. [2023-12-16 10:50:21,615 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 339 [2023-12-16 10:50:21,616 INFO L187 NwaCegarLoop]: Found error trace [2023-12-16 10:50:21,616 INFO L195 NwaCegarLoop]: trace histogram [56, 56, 56, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-16 10:50:21,630 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (5)] Forceful destruction successful, exit code 0 [2023-12-16 10:50:21,827 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 5 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2023-12-16 10:50:21,830 INFO L420 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-16 10:50:21,830 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-16 10:50:21,830 INFO L85 PathProgramCache]: Analyzing trace with hash 1240720269, now seen corresponding path program 1 times [2023-12-16 10:50:21,831 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-12-16 10:50:21,831 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1511887659] [2023-12-16 10:50:21,831 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-16 10:50:21,831 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2023-12-16 10:50:21,831 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2023-12-16 10:50:21,832 INFO L229 MonitoredProcess]: Starting monitored process 6 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2023-12-16 10:50:21,833 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 (6)] Waiting until timeout for monitored process [2023-12-16 10:50:22,203 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 10:50:22,223 INFO L262 TraceCheckSpWp]: Trace formula consists of 530 conjuncts, 4 conjunts are in the unsatisfiable core [2023-12-16 10:50:22,228 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-16 10:50:22,773 INFO L134 CoverageAnalysis]: Checked inductivity of 6160 backedges. 1729 proven. 138 refuted. 0 times theorem prover too weak. 4293 trivial. 0 not checked. [2023-12-16 10:50:22,773 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-12-16 10:50:23,184 INFO L134 CoverageAnalysis]: Checked inductivity of 6160 backedges. 27 proven. 138 refuted. 0 times theorem prover too weak. 5995 trivial. 0 not checked. [2023-12-16 10:50:23,184 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-12-16 10:50:23,185 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1511887659] [2023-12-16 10:50:23,185 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1511887659] provided 0 perfect and 2 imperfect interpolant sequences [2023-12-16 10:50:23,185 INFO L185 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2023-12-16 10:50:23,185 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [5, 5] total 7 [2023-12-16 10:50:23,185 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1147142518] [2023-12-16 10:50:23,185 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2023-12-16 10:50:23,186 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2023-12-16 10:50:23,186 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-12-16 10:50:23,186 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2023-12-16 10:50:23,186 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=17, Invalid=25, Unknown=0, NotChecked=0, Total=42 [2023-12-16 10:50:23,186 INFO L87 Difference]: Start difference. First operand 342 states and 560 transitions. Second operand has 7 states, 7 states have (on average 10.0) internal successors, (70), 7 states have internal predecessors, (70), 2 states have call successors, (102), 2 states have call predecessors, (102), 4 states have return successors, (103), 2 states have call predecessors, (103), 2 states have call successors, (103) [2023-12-16 10:50:25,656 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.40s for a HTC check with result INVALID. Formula has sorts [Bool, FloatingPoint, RoundingMode, BitVec], hasArrays=false, hasNonlinArith=false, quantifiers [] [2023-12-16 10:50:25,752 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-16 10:50:25,752 INFO L93 Difference]: Finished difference Result 573 states and 918 transitions. [2023-12-16 10:50:25,753 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2023-12-16 10:50:25,753 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 10.0) internal successors, (70), 7 states have internal predecessors, (70), 2 states have call successors, (102), 2 states have call predecessors, (102), 4 states have return successors, (103), 2 states have call predecessors, (103), 2 states have call successors, (103) Word has length 338 [2023-12-16 10:50:25,753 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-16 10:50:25,755 INFO L225 Difference]: With dead ends: 573 [2023-12-16 10:50:25,755 INFO L226 Difference]: Without dead ends: 364 [2023-12-16 10:50:25,756 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 678 GetRequests, 668 SyntacticMatches, 1 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 5 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=45, Invalid=65, Unknown=0, NotChecked=0, Total=110 [2023-12-16 10:50:25,756 INFO L413 NwaCegarLoop]: 146 mSDtfsCounter, 110 mSDsluCounter, 179 mSDsCounter, 0 mSdLazyCounter, 296 mSolverCounterSat, 31 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 118 SdHoareTripleChecker+Valid, 325 SdHoareTripleChecker+Invalid, 327 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 31 IncrementalHoareTripleChecker+Valid, 296 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.5s IncrementalHoareTripleChecker+Time [2023-12-16 10:50:25,757 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [118 Valid, 325 Invalid, 327 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [31 Valid, 296 Invalid, 0 Unknown, 0 Unchecked, 2.5s Time] [2023-12-16 10:50:25,757 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 364 states. [2023-12-16 10:50:25,790 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 364 to 352. [2023-12-16 10:50:25,791 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 352 states, 205 states have (on average 1.3707317073170733) internal successors, (281), 206 states have internal predecessors, (281), 140 states have call successors, (140), 6 states have call predecessors, (140), 6 states have return successors, (140), 139 states have call predecessors, (140), 140 states have call successors, (140) [2023-12-16 10:50:25,793 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 352 states to 352 states and 561 transitions. [2023-12-16 10:50:25,793 INFO L78 Accepts]: Start accepts. Automaton has 352 states and 561 transitions. Word has length 338 [2023-12-16 10:50:25,793 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-16 10:50:25,794 INFO L495 AbstractCegarLoop]: Abstraction has 352 states and 561 transitions. [2023-12-16 10:50:25,794 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 10.0) internal successors, (70), 7 states have internal predecessors, (70), 2 states have call successors, (102), 2 states have call predecessors, (102), 4 states have return successors, (103), 2 states have call predecessors, (103), 2 states have call successors, (103) [2023-12-16 10:50:25,794 INFO L276 IsEmpty]: Start isEmpty. Operand 352 states and 561 transitions. [2023-12-16 10:50:25,797 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 339 [2023-12-16 10:50:25,797 INFO L187 NwaCegarLoop]: Found error trace [2023-12-16 10:50:25,797 INFO L195 NwaCegarLoop]: trace histogram [56, 56, 56, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-16 10:50:25,809 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 (6)] Forceful destruction successful, exit code 0 [2023-12-16 10:50:26,004 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 6 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2023-12-16 10:50:26,005 INFO L420 AbstractCegarLoop]: === Iteration 6 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-16 10:50:26,005 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-16 10:50:26,005 INFO L85 PathProgramCache]: Analyzing trace with hash 1297978571, now seen corresponding path program 1 times [2023-12-16 10:50:26,006 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-12-16 10:50:26,006 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1122027644] [2023-12-16 10:50:26,006 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-16 10:50:26,006 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2023-12-16 10:50:26,006 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2023-12-16 10:50:26,007 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 10:50:26,008 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 10:50:26,396 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 10:50:26,418 INFO L262 TraceCheckSpWp]: Trace formula consists of 530 conjuncts, 10 conjunts are in the unsatisfiable core [2023-12-16 10:50:26,423 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-16 10:50:27,982 INFO L134 CoverageAnalysis]: Checked inductivity of 6160 backedges. 1922 proven. 264 refuted. 0 times theorem prover too weak. 3974 trivial. 0 not checked. [2023-12-16 10:50:27,982 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-12-16 10:50:28,794 INFO L134 CoverageAnalysis]: Checked inductivity of 6160 backedges. 30 proven. 135 refuted. 0 times theorem prover too weak. 5995 trivial. 0 not checked. [2023-12-16 10:50:28,794 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-12-16 10:50:28,794 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1122027644] [2023-12-16 10:50:28,794 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1122027644] provided 0 perfect and 2 imperfect interpolant sequences [2023-12-16 10:50:28,794 INFO L185 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2023-12-16 10:50:28,795 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [11, 8] total 17 [2023-12-16 10:50:28,795 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1682556685] [2023-12-16 10:50:28,795 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2023-12-16 10:50:28,796 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 17 states [2023-12-16 10:50:28,796 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-12-16 10:50:28,796 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 17 interpolants. [2023-12-16 10:50:28,797 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=79, Invalid=193, Unknown=0, NotChecked=0, Total=272 [2023-12-16 10:50:28,797 INFO L87 Difference]: Start difference. First operand 352 states and 561 transitions. Second operand has 17 states, 17 states have (on average 7.117647058823529) internal successors, (121), 16 states have internal predecessors, (121), 4 states have call successors, (101), 3 states have call predecessors, (101), 5 states have return successors, (102), 4 states have call predecessors, (102), 4 states have call successors, (102) [2023-12-16 10:50:31,644 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.56s for a HTC check with result INVALID. Formula has sorts [Bool, FloatingPoint, RoundingMode, BitVec], hasArrays=false, hasNonlinArith=false, quantifiers [] [2023-12-16 10:50:33,902 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.98s for a HTC check with result INVALID. Formula has sorts [Bool, FloatingPoint, RoundingMode, BitVec], hasArrays=false, hasNonlinArith=false, quantifiers [] [2023-12-16 10:50:34,420 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-16 10:50:34,421 INFO L93 Difference]: Finished difference Result 679 states and 1025 transitions. [2023-12-16 10:50:34,421 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 18 states. [2023-12-16 10:50:34,422 INFO L78 Accepts]: Start accepts. Automaton has has 17 states, 17 states have (on average 7.117647058823529) internal successors, (121), 16 states have internal predecessors, (121), 4 states have call successors, (101), 3 states have call predecessors, (101), 5 states have return successors, (102), 4 states have call predecessors, (102), 4 states have call successors, (102) Word has length 338 [2023-12-16 10:50:34,422 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-16 10:50:34,424 INFO L225 Difference]: With dead ends: 679 [2023-12-16 10:50:34,424 INFO L226 Difference]: Without dead ends: 464 [2023-12-16 10:50:34,425 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 684 GetRequests, 659 SyntacticMatches, 0 SemanticMatches, 25 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 130 ImplicationChecksByTransitivity, 0.5s TimeCoverageRelationStatistics Valid=202, Invalid=500, Unknown=0, NotChecked=0, Total=702 [2023-12-16 10:50:34,426 INFO L413 NwaCegarLoop]: 156 mSDtfsCounter, 156 mSDsluCounter, 604 mSDsCounter, 0 mSdLazyCounter, 1047 mSolverCounterSat, 57 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 5.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 176 SdHoareTripleChecker+Valid, 760 SdHoareTripleChecker+Invalid, 1104 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 57 IncrementalHoareTripleChecker+Valid, 1047 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 5.4s IncrementalHoareTripleChecker+Time [2023-12-16 10:50:34,426 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [176 Valid, 760 Invalid, 1104 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [57 Valid, 1047 Invalid, 0 Unknown, 0 Unchecked, 5.4s Time] [2023-12-16 10:50:34,427 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 464 states. [2023-12-16 10:50:34,465 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 464 to 424. [2023-12-16 10:50:34,466 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 424 states, 253 states have (on average 1.308300395256917) internal successors, (331), 256 states have internal predecessors, (331), 156 states have call successors, (156), 14 states have call predecessors, (156), 14 states have return successors, (156), 153 states have call predecessors, (156), 156 states have call successors, (156) [2023-12-16 10:50:34,468 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 424 states to 424 states and 643 transitions. [2023-12-16 10:50:34,468 INFO L78 Accepts]: Start accepts. Automaton has 424 states and 643 transitions. Word has length 338 [2023-12-16 10:50:34,469 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-16 10:50:34,470 INFO L495 AbstractCegarLoop]: Abstraction has 424 states and 643 transitions. [2023-12-16 10:50:34,470 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 17 states, 17 states have (on average 7.117647058823529) internal successors, (121), 16 states have internal predecessors, (121), 4 states have call successors, (101), 3 states have call predecessors, (101), 5 states have return successors, (102), 4 states have call predecessors, (102), 4 states have call successors, (102) [2023-12-16 10:50:34,470 INFO L276 IsEmpty]: Start isEmpty. Operand 424 states and 643 transitions. [2023-12-16 10:50:34,471 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 339 [2023-12-16 10:50:34,472 INFO L187 NwaCegarLoop]: Found error trace [2023-12-16 10:50:34,472 INFO L195 NwaCegarLoop]: trace histogram [56, 56, 56, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-16 10:50:34,487 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 10:50:34,684 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 7 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2023-12-16 10:50:34,685 INFO L420 AbstractCegarLoop]: === Iteration 7 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-16 10:50:34,685 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-16 10:50:34,685 INFO L85 PathProgramCache]: Analyzing trace with hash 1298038153, now seen corresponding path program 1 times [2023-12-16 10:50:34,686 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-12-16 10:50:34,686 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1736520263] [2023-12-16 10:50:34,686 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-16 10:50:34,686 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2023-12-16 10:50:34,686 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2023-12-16 10:50:34,687 INFO L229 MonitoredProcess]: Starting monitored process 8 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2023-12-16 10:50:34,687 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (8)] Waiting until timeout for monitored process [2023-12-16 10:50:35,203 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 10:50:35,228 INFO L262 TraceCheckSpWp]: Trace formula consists of 529 conjuncts, 38 conjunts are in the unsatisfiable core [2023-12-16 10:50:35,235 INFO L285 TraceCheckSpWp]: Computing forward predicates... Received shutdown request... [2023-12-16 10:51:17,600 WARN L340 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (8)] Timeout while monitored process is still running, waiting 1000 ms for graceful end [2023-12-16 10:51:17,619 WARN L340 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (1)] Timeout while monitored process is still running, waiting 1000 ms for graceful end [2023-12-16 10:51:18,546 INFO L805 garLoopResultBuilder]: Registering result TIMEOUT for location ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION (0 of 1 remaining) [2023-12-16 10:51:18,559 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 (8)] Forceful destruction successful, exit code 0 [2023-12-16 10:51:18,661 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (1)] Ended with exit code 0 [2023-12-16 10:51:18,748 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 8 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2023-12-16 10:51:18,748 WARN L619 AbstractCegarLoop]: Verification canceled: while NwaCegarLoop was analyzing trace of length 339 with TraceHistMax 56,while TraceCheckSpWp was constructing forward predicates,while PolyPacSimplificationTermWalker was simplifying a ∧-2-1 term,while PolyPacSimplificationTermWalker was simplifying 2 xjuncts wrt. a ∧-16-2-1 context. [2023-12-16 10:51:18,752 INFO L445 BasicCegarLoop]: Path program histogram: [1, 1, 1, 1, 1, 1, 1] [2023-12-16 10:51:18,753 INFO L179 ceAbstractionStarter]: Computing trace abstraction results [2023-12-16 10:51:18,756 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 16.12 10:51:18 BoogieIcfgContainer [2023-12-16 10:51:18,756 INFO L131 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2023-12-16 10:51:18,756 INFO L158 Benchmark]: Toolchain (without parser) took 74106.23ms. Allocated memory is still 243.3MB. Free memory was 201.2MB in the beginning and 162.0MB in the end (delta: 39.2MB). Peak memory consumption was 40.3MB. Max. memory is 8.0GB. [2023-12-16 10:51:18,757 INFO L158 Benchmark]: CDTParser took 0.10ms. Allocated memory is still 194.0MB. Free memory is still 140.4MB. There was no memory consumed. Max. memory is 8.0GB. [2023-12-16 10:51:18,757 INFO L158 Benchmark]: CACSL2BoogieTranslator took 260.99ms. Allocated memory is still 243.3MB. Free memory was 201.2MB in the beginning and 182.4MB in the end (delta: 18.9MB). Peak memory consumption was 18.9MB. Max. memory is 8.0GB. [2023-12-16 10:51:18,757 INFO L158 Benchmark]: Boogie Procedure Inliner took 45.45ms. Allocated memory is still 243.3MB. Free memory was 182.4MB in the beginning and 179.2MB in the end (delta: 3.1MB). Peak memory consumption was 3.1MB. Max. memory is 8.0GB. [2023-12-16 10:51:18,757 INFO L158 Benchmark]: Boogie Preprocessor took 56.36ms. Allocated memory is still 243.3MB. Free memory was 179.2MB in the beginning and 174.5MB in the end (delta: 4.7MB). Peak memory consumption was 5.2MB. Max. memory is 8.0GB. [2023-12-16 10:51:18,758 INFO L158 Benchmark]: RCFGBuilder took 2260.96ms. Allocated memory is still 243.3MB. Free memory was 174.5MB in the beginning and 208.1MB in the end (delta: -33.6MB). Peak memory consumption was 37.7MB. Max. memory is 8.0GB. [2023-12-16 10:51:18,758 INFO L158 Benchmark]: TraceAbstraction took 71478.38ms. Allocated memory is still 243.3MB. Free memory was 207.6MB in the beginning and 162.0MB in the end (delta: 45.6MB). Peak memory consumption was 45.6MB. Max. memory is 8.0GB. [2023-12-16 10:51:18,759 INFO L338 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.10ms. Allocated memory is still 194.0MB. Free memory is still 140.4MB. There was no memory consumed. Max. memory is 8.0GB. * CACSL2BoogieTranslator took 260.99ms. Allocated memory is still 243.3MB. Free memory was 201.2MB in the beginning and 182.4MB in the end (delta: 18.9MB). Peak memory consumption was 18.9MB. Max. memory is 8.0GB. * Boogie Procedure Inliner took 45.45ms. Allocated memory is still 243.3MB. Free memory was 182.4MB in the beginning and 179.2MB in the end (delta: 3.1MB). Peak memory consumption was 3.1MB. Max. memory is 8.0GB. * Boogie Preprocessor took 56.36ms. Allocated memory is still 243.3MB. Free memory was 179.2MB in the beginning and 174.5MB in the end (delta: 4.7MB). Peak memory consumption was 5.2MB. Max. memory is 8.0GB. * RCFGBuilder took 2260.96ms. Allocated memory is still 243.3MB. Free memory was 174.5MB in the beginning and 208.1MB in the end (delta: -33.6MB). Peak memory consumption was 37.7MB. Max. memory is 8.0GB. * TraceAbstraction took 71478.38ms. Allocated memory is still 243.3MB. Free memory was 207.6MB in the beginning and 162.0MB in the end (delta: 45.6MB). Peak memory consumption was 45.6MB. Max. memory is 8.0GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - StatisticsResult: ErrorAutomatonStatistics NumberErrorTraces: 0, NumberStatementsAllTraces: 0, NumberRelevantStatements: 0, 0.0s ErrorAutomatonConstructionTimeTotal, 0.0s FaulLocalizationTime, NumberStatementsFirstTrace: -1, TraceLengthAvg: 0, 0.0s ErrorAutomatonConstructionTimeAvg, 0.0s ErrorAutomatonDifferenceTimeAvg, 0.0s ErrorAutomatonDifferenceTimeTotal, NumberOfNoEnhancement: 0, NumberOfFiniteEnhancement: 0, NumberOfInfiniteEnhancement: 0 - TimeoutResultAtElement [Line: 19]: Timeout (TraceAbstraction) Unable to prove that a call to reach_error is unreachable (line 19). Cancelled while NwaCegarLoop was analyzing trace of length 339 with TraceHistMax 56,while TraceCheckSpWp was constructing forward predicates,while PolyPacSimplificationTermWalker was simplifying a ∧-2-1 term,while PolyPacSimplificationTermWalker was simplifying 2 xjuncts wrt. a ∧-16-2-1 context. - StatisticsResult: Ultimate Automizer benchmark data CFG has 2 procedures, 134 locations, 1 error locations. Started 1 CEGAR loops. OverallTime: 71.4s, OverallIterations: 7, TraceHistogramMax: 56, PathProgramHistogramMax: 1, EmptinessCheckTime: 0.0s, AutomataDifference: 17.0s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 730 SdHoareTripleChecker+Valid, 16.3s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 702 mSDsluCounter, 3242 SdHoareTripleChecker+Invalid, 15.7s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 1981 mSDsCounter, 317 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 1656 IncrementalHoareTripleChecker+Invalid, 1973 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 317 mSolverCounterUnsat, 1261 mSDtfsCounter, 1656 mSolverCounterSat, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown, PredicateUnifierStatistics: 0 DeclaredPredicates, 2713 GetRequests, 2665 SyntacticMatches, 1 SemanticMatches, 47 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 139 ImplicationChecksByTransitivity, 0.7s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=424occurred in iteration=6, InterpolantAutomatonStates: 44, 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, 117 StatesRemovedByMinimization, 5 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.2s SsaConstructionTime, 1.9s SatisfiabilityAnalysisTime, 6.5s InterpolantComputationTime, 2025 NumberOfCodeBlocks, 2025 NumberOfCodeBlocksAsserted, 6 NumberOfCheckSat, 2693 ConstructedInterpolants, 0 QuantifiedInterpolants, 10498 SizeOfPredicates, 15 NumberOfNonLiveVariables, 3180 ConjunctsInSsa, 29 ConjunctsInUnsatCore, 8 InterpolantComputations, 4 PerfectInterpolantSequences, 48605/49280 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