/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_fillercodestructure_filler-pr-co_file-55.i -------------------------------------------------------------------------------- This is Ultimate 0.2.4-tmp.fs.bitabs-eval-d9c3e40-m [2023-12-23 13:16:21,521 INFO L188 SettingsManager]: Resetting all preferences to default values... [2023-12-23 13:16:21,608 INFO L114 SettingsManager]: Loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/settings/default/automizer/svcomp-Reach-32bit-Automizer_Bitvector.epf [2023-12-23 13:16:21,613 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2023-12-23 13:16:21,614 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2023-12-23 13:16:21,640 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2023-12-23 13:16:21,641 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2023-12-23 13:16:21,641 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2023-12-23 13:16:21,642 INFO L151 SettingsManager]: Preferences of Boogie Preprocessor differ from their defaults: [2023-12-23 13:16:21,648 INFO L153 SettingsManager]: * Use memory slicer=true [2023-12-23 13:16:21,649 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2023-12-23 13:16:21,649 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2023-12-23 13:16:21,650 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2023-12-23 13:16:21,650 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2023-12-23 13:16:21,650 INFO L153 SettingsManager]: * Use SBE=true [2023-12-23 13:16:21,650 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2023-12-23 13:16:21,651 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2023-12-23 13:16:21,651 INFO L153 SettingsManager]: * sizeof long=4 [2023-12-23 13:16:21,651 INFO L153 SettingsManager]: * sizeof POINTER=4 [2023-12-23 13:16:21,651 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2023-12-23 13:16:21,652 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2023-12-23 13:16:21,652 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2023-12-23 13:16:21,652 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2023-12-23 13:16:21,653 INFO L153 SettingsManager]: * Adapt memory model on pointer casts if necessary=true [2023-12-23 13:16:21,653 INFO L153 SettingsManager]: * Use bitvectors instead of ints=true [2023-12-23 13:16:21,653 INFO L153 SettingsManager]: * Allow undefined functions=false [2023-12-23 13:16:21,653 INFO L153 SettingsManager]: * Memory model=HoenickeLindenmann_4ByteResolution [2023-12-23 13:16:21,653 INFO L153 SettingsManager]: * sizeof long double=12 [2023-12-23 13:16:21,654 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2023-12-23 13:16:21,654 INFO L153 SettingsManager]: * Use constant arrays=true [2023-12-23 13:16:21,655 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2023-12-23 13:16:21,655 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2023-12-23 13:16:21,655 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2023-12-23 13:16:21,655 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2023-12-23 13:16:21,656 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2023-12-23 13:16:21,656 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2023-12-23 13:16:21,656 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2023-12-23 13:16:21,656 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2023-12-23 13:16:21,656 INFO L153 SettingsManager]: * Trace refinement strategy=WOLF [2023-12-23 13:16:21,656 INFO L153 SettingsManager]: * Command for external solver=cvc4 --incremental --print-success --lang smt [2023-12-23 13:16:21,657 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2023-12-23 13:16:21,657 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2023-12-23 13:16:21,657 INFO L153 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2023-12-23 13:16:21,657 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2023-12-23 13:16:21,658 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2023-12-23 13:16:21,658 INFO L153 SettingsManager]: * Logic for external solver=AUFBV [2023-12-23 13:16:21,658 INFO L153 SettingsManager]: * Looper check in Petri net analysis=SEMANTIC WARNING: An illegal reflective access operation has occurred WARNING: Illegal reflective access by com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 (file:/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/plugins/com.sun.xml.bind_2.2.0.v201505121915.jar) to method java.lang.ClassLoader.defineClass(java.lang.String,byte[],int,int) WARNING: Please consider reporting this to the maintainers of com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release [2023-12-23 13:16:21,868 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2023-12-23 13:16:21,895 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2023-12-23 13:16:21,898 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2023-12-23 13:16:21,899 INFO L270 PluginConnector]: Initializing CDTParser... [2023-12-23 13:16:21,899 INFO L274 PluginConnector]: CDTParser initialized [2023-12-23 13:16:21,901 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/hardness-nfm22/hardness_fillercode_fillercodestructure_filler-pr-co_file-55.i [2023-12-23 13:16:23,142 INFO L533 CDTParser]: Created temporary CDT project at NULL [2023-12-23 13:16:23,392 INFO L384 CDTParser]: Found 1 translation units. [2023-12-23 13:16:23,393 INFO L180 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/hardness-nfm22/hardness_fillercode_fillercodestructure_filler-pr-co_file-55.i [2023-12-23 13:16:23,406 INFO L427 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/36e8311f7/bbbd0e6f2cb3407f98c1b0182358013c/FLAG3c2915561 [2023-12-23 13:16:23,424 INFO L435 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/36e8311f7/bbbd0e6f2cb3407f98c1b0182358013c [2023-12-23 13:16:23,427 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2023-12-23 13:16:23,428 INFO L133 ToolchainWalker]: Walking toolchain with 5 elements. [2023-12-23 13:16:23,430 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2023-12-23 13:16:23,430 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2023-12-23 13:16:23,435 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2023-12-23 13:16:23,435 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 23.12 01:16:23" (1/1) ... [2023-12-23 13:16:23,436 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@5e3b0078 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.12 01:16:23, skipping insertion in model container [2023-12-23 13:16:23,437 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 23.12 01:16:23" (1/1) ... [2023-12-23 13:16:23,484 INFO L177 MainTranslator]: Built tables and reachable declarations [2023-12-23 13:16:23,607 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_fillercodestructure_filler-pr-co_file-55.i[919,932] [2023-12-23 13:16:23,672 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-12-23 13:16:23,692 INFO L202 MainTranslator]: Completed pre-run [2023-12-23 13:16:23,704 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_fillercodestructure_filler-pr-co_file-55.i[919,932] [2023-12-23 13:16:23,740 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-12-23 13:16:23,756 INFO L206 MainTranslator]: Completed translation [2023-12-23 13:16:23,757 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.12 01:16:23 WrapperNode [2023-12-23 13:16:23,757 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2023-12-23 13:16:23,758 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2023-12-23 13:16:23,758 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2023-12-23 13:16:23,758 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2023-12-23 13:16:23,765 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.12 01:16:23" (1/1) ... [2023-12-23 13:16:23,778 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.12 01:16:23" (1/1) ... [2023-12-23 13:16:23,811 INFO L138 Inliner]: procedures = 27, calls = 61, calls flagged for inlining = 8, calls inlined = 8, statements flattened = 244 [2023-12-23 13:16:23,811 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2023-12-23 13:16:23,812 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2023-12-23 13:16:23,812 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2023-12-23 13:16:23,812 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2023-12-23 13:16:23,822 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.12 01:16:23" (1/1) ... [2023-12-23 13:16:23,823 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.12 01:16:23" (1/1) ... [2023-12-23 13:16:23,828 INFO L184 PluginConnector]: Executing the observer MemorySlicer from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.12 01:16:23" (1/1) ... [2023-12-23 13:16:23,842 INFO L175 MemorySlicer]: Split 2 memory accesses to 1 slices as follows [2]. 100 percent of accesses are in the largest equivalence class. The 2 initializations are split as follows [2]. The 0 writes are split as follows [0]. [2023-12-23 13:16:23,843 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.12 01:16:23" (1/1) ... [2023-12-23 13:16:23,843 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.12 01:16:23" (1/1) ... [2023-12-23 13:16:23,860 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.12 01:16:23" (1/1) ... [2023-12-23 13:16:23,864 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.12 01:16:23" (1/1) ... [2023-12-23 13:16:23,874 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.12 01:16:23" (1/1) ... [2023-12-23 13:16:23,876 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.12 01:16:23" (1/1) ... [2023-12-23 13:16:23,881 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2023-12-23 13:16:23,882 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2023-12-23 13:16:23,882 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2023-12-23 13:16:23,882 INFO L274 PluginConnector]: RCFGBuilder initialized [2023-12-23 13:16:23,883 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.12 01:16:23" (1/1) ... [2023-12-23 13:16:23,888 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2023-12-23 13:16:23,900 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-12-23 13:16:23,913 INFO L229 MonitoredProcess]: Starting monitored process 1 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (exit command is (exit), workingDir is null) [2023-12-23 13:16:23,928 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (1)] Waiting until timeout for monitored process [2023-12-23 13:16:23,951 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2023-12-23 13:16:23,951 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE1#0 [2023-12-23 13:16:23,951 INFO L130 BoogieDeclarations]: Found specification of procedure assume_abort_if_not [2023-12-23 13:16:23,953 INFO L138 BoogieDeclarations]: Found implementation of procedure assume_abort_if_not [2023-12-23 13:16:23,953 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2023-12-23 13:16:23,953 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2023-12-23 13:16:24,073 INFO L241 CfgBuilder]: Building ICFG [2023-12-23 13:16:24,075 INFO L267 CfgBuilder]: Building CFG for each procedure with an implementation [2023-12-23 13:16:32,962 INFO L282 CfgBuilder]: Performing block encoding [2023-12-23 13:16:33,004 INFO L304 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2023-12-23 13:16:33,004 INFO L309 CfgBuilder]: Removed 1 assume(true) statements. [2023-12-23 13:16:33,005 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 23.12 01:16:33 BoogieIcfgContainer [2023-12-23 13:16:33,005 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2023-12-23 13:16:33,007 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2023-12-23 13:16:33,007 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2023-12-23 13:16:33,010 INFO L274 PluginConnector]: TraceAbstraction initialized [2023-12-23 13:16:33,010 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 23.12 01:16:23" (1/3) ... [2023-12-23 13:16:33,011 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@7908f223 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 23.12 01:16:33, skipping insertion in model container [2023-12-23 13:16:33,011 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.12 01:16:23" (2/3) ... [2023-12-23 13:16:33,011 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@7908f223 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 23.12 01:16:33, skipping insertion in model container [2023-12-23 13:16:33,011 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 23.12 01:16:33" (3/3) ... [2023-12-23 13:16:33,012 INFO L112 eAbstractionObserver]: Analyzing ICFG hardness_fillercode_fillercodestructure_filler-pr-co_file-55.i [2023-12-23 13:16:33,052 INFO L204 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2023-12-23 13:16:33,052 INFO L163 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2023-12-23 13:16:33,094 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2023-12-23 13:16:33,099 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;@1d4fbde7, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2023-12-23 13:16:33,099 INFO L358 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2023-12-23 13:16:33,103 INFO L276 IsEmpty]: Start isEmpty. Operand has 105 states, 54 states have (on average 1.4074074074074074) internal successors, (76), 55 states have internal predecessors, (76), 48 states have call successors, (48), 1 states have call predecessors, (48), 1 states have return successors, (48), 48 states have call predecessors, (48), 48 states have call successors, (48) [2023-12-23 13:16:33,124 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 284 [2023-12-23 13:16:33,124 INFO L187 NwaCegarLoop]: Found error trace [2023-12-23 13:16:33,125 INFO L195 NwaCegarLoop]: trace histogram [48, 48, 48, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-23 13:16:33,125 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-23 13:16:33,130 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-23 13:16:33,130 INFO L85 PathProgramCache]: Analyzing trace with hash 1709290126, now seen corresponding path program 1 times [2023-12-23 13:16:33,143 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-12-23 13:16:33,143 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1691428221] [2023-12-23 13:16:33,144 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-23 13:16:33,144 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2023-12-23 13:16:33,144 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2023-12-23 13:16:33,147 INFO L229 MonitoredProcess]: Starting monitored process 2 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2023-12-23 13:16:33,150 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (2)] Waiting until timeout for monitored process [2023-12-23 13:16:34,112 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-23 13:16:34,147 INFO L262 TraceCheckSpWp]: Trace formula consists of 451 conjuncts, 1 conjunts are in the unsatisfiable core [2023-12-23 13:16:34,167 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-23 13:16:34,252 INFO L134 CoverageAnalysis]: Checked inductivity of 4512 backedges. 1462 proven. 0 refuted. 0 times theorem prover too weak. 3050 trivial. 0 not checked. [2023-12-23 13:16:34,252 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-12-23 13:16:34,253 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-12-23 13:16:34,253 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1691428221] [2023-12-23 13:16:34,254 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1691428221] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-23 13:16:34,254 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-23 13:16:34,254 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2023-12-23 13:16:34,255 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2040682345] [2023-12-23 13:16:34,262 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-23 13:16:34,269 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2023-12-23 13:16:34,270 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-12-23 13:16:34,298 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2023-12-23 13:16:34,298 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2023-12-23 13:16:34,301 INFO L87 Difference]: Start difference. First operand has 105 states, 54 states have (on average 1.4074074074074074) internal successors, (76), 55 states have internal predecessors, (76), 48 states have call successors, (48), 1 states have call predecessors, (48), 1 states have return successors, (48), 48 states have call predecessors, (48), 48 states have call successors, (48) Second operand has 2 states, 2 states have (on average 25.0) internal successors, (50), 2 states have internal predecessors, (50), 2 states have call successors, (48), 2 states have call predecessors, (48), 2 states have return successors, (48), 2 states have call predecessors, (48), 2 states have call successors, (48) [2023-12-23 13:16:34,437 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-23 13:16:34,437 INFO L93 Difference]: Finished difference Result 205 states and 386 transitions. [2023-12-23 13:16:34,445 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2023-12-23 13:16:34,446 INFO L78 Accepts]: Start accepts. Automaton has has 2 states, 2 states have (on average 25.0) internal successors, (50), 2 states have internal predecessors, (50), 2 states have call successors, (48), 2 states have call predecessors, (48), 2 states have return successors, (48), 2 states have call predecessors, (48), 2 states have call successors, (48) Word has length 283 [2023-12-23 13:16:34,446 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-23 13:16:34,452 INFO L225 Difference]: With dead ends: 205 [2023-12-23 13:16:34,452 INFO L226 Difference]: Without dead ends: 101 [2023-12-23 13:16:34,457 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 282 GetRequests, 282 SyntacticMatches, 0 SemanticMatches, 0 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2023-12-23 13:16:34,460 INFO L413 NwaCegarLoop]: 158 mSDtfsCounter, 0 mSDsluCounter, 0 mSDsCounter, 0 mSdLazyCounter, 3 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 158 SdHoareTripleChecker+Invalid, 3 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 3 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2023-12-23 13:16:34,461 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 158 Invalid, 3 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 3 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2023-12-23 13:16:34,476 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 101 states. [2023-12-23 13:16:34,503 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 101 to 101. [2023-12-23 13:16:34,504 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 101 states, 51 states have (on average 1.2745098039215685) internal successors, (65), 51 states have internal predecessors, (65), 48 states have call successors, (48), 1 states have call predecessors, (48), 1 states have return successors, (48), 48 states have call predecessors, (48), 48 states have call successors, (48) [2023-12-23 13:16:34,508 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 101 states to 101 states and 161 transitions. [2023-12-23 13:16:34,510 INFO L78 Accepts]: Start accepts. Automaton has 101 states and 161 transitions. Word has length 283 [2023-12-23 13:16:34,511 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-23 13:16:34,512 INFO L495 AbstractCegarLoop]: Abstraction has 101 states and 161 transitions. [2023-12-23 13:16:34,512 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 2 states, 2 states have (on average 25.0) internal successors, (50), 2 states have internal predecessors, (50), 2 states have call successors, (48), 2 states have call predecessors, (48), 2 states have return successors, (48), 2 states have call predecessors, (48), 2 states have call successors, (48) [2023-12-23 13:16:34,512 INFO L276 IsEmpty]: Start isEmpty. Operand 101 states and 161 transitions. [2023-12-23 13:16:34,522 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 284 [2023-12-23 13:16:34,522 INFO L187 NwaCegarLoop]: Found error trace [2023-12-23 13:16:34,523 INFO L195 NwaCegarLoop]: trace histogram [48, 48, 48, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-23 13:16:34,547 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (2)] Forceful destruction successful, exit code 0 [2023-12-23 13:16:34,723 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2023-12-23 13:16:34,724 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-23 13:16:34,724 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-23 13:16:34,725 INFO L85 PathProgramCache]: Analyzing trace with hash -189989866, now seen corresponding path program 1 times [2023-12-23 13:16:34,726 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-12-23 13:16:34,726 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1557541538] [2023-12-23 13:16:34,726 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-23 13:16:34,726 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2023-12-23 13:16:34,726 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2023-12-23 13:16:34,728 INFO L229 MonitoredProcess]: Starting monitored process 3 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2023-12-23 13:16:34,729 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (3)] Waiting until timeout for monitored process [2023-12-23 13:16:35,658 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-23 13:16:35,692 INFO L262 TraceCheckSpWp]: Trace formula consists of 451 conjuncts, 5 conjunts are in the unsatisfiable core [2023-12-23 13:16:35,705 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-23 13:16:37,219 INFO L134 CoverageAnalysis]: Checked inductivity of 4512 backedges. 2283 proven. 63 refuted. 0 times theorem prover too weak. 2166 trivial. 0 not checked. [2023-12-23 13:16:37,219 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-12-23 13:16:38,098 INFO L134 CoverageAnalysis]: Checked inductivity of 4512 backedges. 78 proven. 63 refuted. 0 times theorem prover too weak. 4371 trivial. 0 not checked. [2023-12-23 13:16:38,099 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-12-23 13:16:38,103 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1557541538] [2023-12-23 13:16:38,104 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1557541538] provided 0 perfect and 2 imperfect interpolant sequences [2023-12-23 13:16:38,104 INFO L185 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2023-12-23 13:16:38,104 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [6, 6] total 8 [2023-12-23 13:16:38,105 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1386175996] [2023-12-23 13:16:38,105 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2023-12-23 13:16:38,109 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2023-12-23 13:16:38,109 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-12-23 13:16:38,111 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2023-12-23 13:16:38,111 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=19, Invalid=37, Unknown=0, NotChecked=0, Total=56 [2023-12-23 13:16:38,112 INFO L87 Difference]: Start difference. First operand 101 states and 161 transitions. Second operand has 8 states, 8 states have (on average 6.875) internal successors, (55), 8 states have internal predecessors, (55), 2 states have call successors, (69), 2 states have call predecessors, (69), 4 states have return successors, (70), 2 states have call predecessors, (70), 2 states have call successors, (70) [2023-12-23 13:16:42,013 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-23 13:16:42,016 INFO L93 Difference]: Finished difference Result 317 states and 495 transitions. [2023-12-23 13:16:42,017 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 17 states. [2023-12-23 13:16:42,018 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 8 states have (on average 6.875) internal successors, (55), 8 states have internal predecessors, (55), 2 states have call successors, (69), 2 states have call predecessors, (69), 4 states have return successors, (70), 2 states have call predecessors, (70), 2 states have call successors, (70) Word has length 283 [2023-12-23 13:16:42,022 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-23 13:16:42,028 INFO L225 Difference]: With dead ends: 317 [2023-12-23 13:16:42,029 INFO L226 Difference]: Without dead ends: 217 [2023-12-23 13:16:42,033 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 576 GetRequests, 558 SyntacticMatches, 1 SemanticMatches, 17 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 44 ImplicationChecksByTransitivity, 0.8s TimeCoverageRelationStatistics Valid=112, Invalid=230, Unknown=0, NotChecked=0, Total=342 [2023-12-23 13:16:42,034 INFO L413 NwaCegarLoop]: 190 mSDtfsCounter, 155 mSDsluCounter, 279 mSDsCounter, 0 mSdLazyCounter, 599 mSolverCounterSat, 103 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 3.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 182 SdHoareTripleChecker+Valid, 469 SdHoareTripleChecker+Invalid, 702 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 103 IncrementalHoareTripleChecker+Valid, 599 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 3.3s IncrementalHoareTripleChecker+Time [2023-12-23 13:16:42,035 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [182 Valid, 469 Invalid, 702 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [103 Valid, 599 Invalid, 0 Unknown, 0 Unchecked, 3.3s Time] [2023-12-23 13:16:42,037 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 217 states. [2023-12-23 13:16:42,080 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 217 to 113. [2023-12-23 13:16:42,081 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 113 states, 62 states have (on average 1.3064516129032258) internal successors, (81), 62 states have internal predecessors, (81), 48 states have call successors, (48), 2 states have call predecessors, (48), 2 states have return successors, (48), 48 states have call predecessors, (48), 48 states have call successors, (48) [2023-12-23 13:16:42,082 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 113 states to 113 states and 177 transitions. [2023-12-23 13:16:42,082 INFO L78 Accepts]: Start accepts. Automaton has 113 states and 177 transitions. Word has length 283 [2023-12-23 13:16:42,083 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-23 13:16:42,083 INFO L495 AbstractCegarLoop]: Abstraction has 113 states and 177 transitions. [2023-12-23 13:16:42,083 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 8 states have (on average 6.875) internal successors, (55), 8 states have internal predecessors, (55), 2 states have call successors, (69), 2 states have call predecessors, (69), 4 states have return successors, (70), 2 states have call predecessors, (70), 2 states have call successors, (70) [2023-12-23 13:16:42,084 INFO L276 IsEmpty]: Start isEmpty. Operand 113 states and 177 transitions. [2023-12-23 13:16:42,087 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 284 [2023-12-23 13:16:42,087 INFO L187 NwaCegarLoop]: Found error trace [2023-12-23 13:16:42,087 INFO L195 NwaCegarLoop]: trace histogram [48, 48, 48, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-23 13:16:42,112 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 [2023-12-23 13:16:42,296 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 [2023-12-23 13:16:42,297 INFO L420 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-23 13:16:42,297 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-23 13:16:42,298 INFO L85 PathProgramCache]: Analyzing trace with hash -130824940, now seen corresponding path program 1 times [2023-12-23 13:16:42,298 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-12-23 13:16:42,299 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [272554824] [2023-12-23 13:16:42,299 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-23 13:16:42,299 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2023-12-23 13:16:42,299 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2023-12-23 13:16:42,302 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) [2023-12-23 13:16:42,307 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 [2023-12-23 13:16:43,551 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-23 13:16:43,592 INFO L262 TraceCheckSpWp]: Trace formula consists of 448 conjuncts, 15 conjunts are in the unsatisfiable core [2023-12-23 13:16:43,599 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-23 13:18:01,815 WARN L293 SmtUtils]: Spent 5.35s on a formula simplification that was a NOOP. DAG size: 6 (called from [L 731] de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher.simplify) [2023-12-23 13:18:13,215 WARN L293 SmtUtils]: Spent 6.81s on a formula simplification that was a NOOP. DAG size: 7 (called from [L 731] de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher.simplify) [2023-12-23 13:18:25,312 WARN L293 SmtUtils]: Spent 5.56s on a formula simplification that was a NOOP. DAG size: 6 (called from [L 731] de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher.simplify) [2023-12-23 13:18:48,459 WARN L293 SmtUtils]: Spent 8.57s on a formula simplification that was a NOOP. DAG size: 3 (called from [L 731] de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher.simplify) [2023-12-23 13:18:56,967 WARN L293 SmtUtils]: Spent 5.08s on a formula simplification that was a NOOP. DAG size: 8 (called from [L 731] de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher.simplify) [2023-12-23 13:19:01,112 WARN L854 $PredicateComparison]: unable to prove that (let ((.cse5 ((_ to_fp 8 24) c_currentRoundingMode (/ 1.0 100000000000000000000.0))) (.cse4 ((_ to_fp 8 24) c_currentRoundingMode 4611686018427382800.0))) (let ((.cse0 ((_ to_fp 11 53) c_currentRoundingMode (fp.neg .cse4))) (.cse1 ((_ to_fp 11 53) c_currentRoundingMode (fp.neg .cse5))) (.cse3 ((_ to_fp 11 53) c_currentRoundingMode .cse5)) (.cse2 ((_ to_fp 11 53) c_currentRoundingMode .cse4))) (and (or (fp.lt c_~var_1_1~0 (fp.div c_currentRoundingMode c_~var_1_40~0 ((_ to_fp 11 53) c_currentRoundingMode ((_ to_fp 8 24) c_currentRoundingMode (/ 607.0 40.0))))) (fp.lt c_~var_1_1~0 (fp.neg c_~var_1_1~0))) (not (fp.geq c_~var_1_1~0 ((_ to_fp 11 53) c_currentRoundingMode ((_ to_fp 8 24) c_currentRoundingMode (/ 255.0 2.0))))) (or (and (fp.geq c_~var_1_40~0 .cse0) (fp.leq c_~var_1_40~0 .cse1)) (and (fp.leq c_~var_1_40~0 .cse2) (fp.geq c_~var_1_40~0 .cse3))) (or (and (fp.leq c_~var_1_1~0 .cse1) (fp.geq c_~var_1_1~0 .cse0)) (fp.geq c_~var_1_1~0 .cse3)) (or (and (fp.geq c_~var_1_8~0 .cse0) (fp.leq c_~var_1_8~0 .cse1)) (and (fp.geq c_~var_1_8~0 .cse3) (fp.leq c_~var_1_8~0 .cse2))) (= c_currentRoundingMode roundNearestTiesToEven)))) is different from false [2023-12-23 13:19:05,265 WARN L876 $PredicateComparison]: unable to prove that (let ((.cse5 ((_ to_fp 8 24) c_currentRoundingMode (/ 1.0 100000000000000000000.0))) (.cse4 ((_ to_fp 8 24) c_currentRoundingMode 4611686018427382800.0))) (let ((.cse0 ((_ to_fp 11 53) c_currentRoundingMode (fp.neg .cse4))) (.cse1 ((_ to_fp 11 53) c_currentRoundingMode (fp.neg .cse5))) (.cse3 ((_ to_fp 11 53) c_currentRoundingMode .cse5)) (.cse2 ((_ to_fp 11 53) c_currentRoundingMode .cse4))) (and (or (fp.lt c_~var_1_1~0 (fp.div c_currentRoundingMode c_~var_1_40~0 ((_ to_fp 11 53) c_currentRoundingMode ((_ to_fp 8 24) c_currentRoundingMode (/ 607.0 40.0))))) (fp.lt c_~var_1_1~0 (fp.neg c_~var_1_1~0))) (not (fp.geq c_~var_1_1~0 ((_ to_fp 11 53) c_currentRoundingMode ((_ to_fp 8 24) c_currentRoundingMode (/ 255.0 2.0))))) (or (and (fp.geq c_~var_1_40~0 .cse0) (fp.leq c_~var_1_40~0 .cse1)) (and (fp.leq c_~var_1_40~0 .cse2) (fp.geq c_~var_1_40~0 .cse3))) (or (and (fp.leq c_~var_1_1~0 .cse1) (fp.geq c_~var_1_1~0 .cse0)) (fp.geq c_~var_1_1~0 .cse3)) (or (and (fp.geq c_~var_1_8~0 .cse0) (fp.leq c_~var_1_8~0 .cse1)) (and (fp.geq c_~var_1_8~0 .cse3) (fp.leq c_~var_1_8~0 .cse2))) (= c_currentRoundingMode roundNearestTiesToEven)))) is different from true [2023-12-23 13:19:13,633 WARN L293 SmtUtils]: Spent 5.04s on a formula simplification that was a NOOP. DAG size: 8 (called from [L 731] de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher.simplify) [2023-12-23 13:19:35,415 WARN L293 SmtUtils]: Spent 5.29s on a formula simplification that was a NOOP. DAG size: 6 (called from [L 731] de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher.simplify) [2023-12-23 13:19:46,869 WARN L293 SmtUtils]: Spent 6.97s on a formula simplification that was a NOOP. DAG size: 8 (called from [L 731] de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher.simplify) [2023-12-23 13:21:25,587 WARN L293 SmtUtils]: Spent 32.85s on a formula simplification that was a NOOP. DAG size: 28 (called from [L 391] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate) [2023-12-23 13:21:29,259 INFO L134 CoverageAnalysis]: Checked inductivity of 4512 backedges. 2179 proven. 312 refuted. 0 times theorem prover too weak. 2021 trivial. 0 not checked. [2023-12-23 13:21:29,259 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-12-23 13:21:59,056 WARN L293 SmtUtils]: Spent 8.58s on a formula simplification that was a NOOP. DAG size: 9 (called from [L 731] de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher.simplify) [2023-12-23 13:22:12,387 WARN L293 SmtUtils]: Spent 5.98s on a formula simplification that was a NOOP. DAG size: 7 (called from [L 731] de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher.simplify) [2023-12-23 13:22:18,683 WARN L293 SmtUtils]: Spent 6.30s on a formula simplification that was a NOOP. DAG size: 4 (called from [L 731] de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher.simplify) [2023-12-23 13:22:25,889 WARN L293 SmtUtils]: Spent 7.21s on a formula simplification that was a NOOP. DAG size: 7 (called from [L 731] de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher.simplify) [2023-12-23 13:22:34,455 WARN L293 SmtUtils]: Spent 8.56s on a formula simplification that was a NOOP. DAG size: 3 (called from [L 731] de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher.simplify) [2023-12-23 13:22:38,605 WARN L854 $PredicateComparison]: unable to prove that (let ((.cse1 (fp.neg c_~var_1_1~0)) (.cse0 (fp.neg ((_ to_fp 11 53) c_currentRoundingMode (/ 7.0 8.0))))) (or (fp.geq (fp.neg c_~var_1_8~0) .cse0) (not (fp.leq c_~var_1_40~0 c_~var_1_1~0)) (and (not (fp.lt c_~var_1_1~0 (fp.div c_currentRoundingMode c_~var_1_40~0 ((_ to_fp 11 53) c_currentRoundingMode ((_ to_fp 8 24) c_currentRoundingMode (/ 607.0 40.0)))))) (not (fp.lt c_~var_1_1~0 .cse1))) (and (fp.geq .cse1 .cse0) (fp.lt c_~var_1_1~0 c_~var_1_8~0)))) is different from false [2023-12-23 13:22:42,760 WARN L876 $PredicateComparison]: unable to prove that (let ((.cse1 (fp.neg c_~var_1_1~0)) (.cse0 (fp.neg ((_ to_fp 11 53) c_currentRoundingMode (/ 7.0 8.0))))) (or (fp.geq (fp.neg c_~var_1_8~0) .cse0) (not (fp.leq c_~var_1_40~0 c_~var_1_1~0)) (and (not (fp.lt c_~var_1_1~0 (fp.div c_currentRoundingMode c_~var_1_40~0 ((_ to_fp 11 53) c_currentRoundingMode ((_ to_fp 8 24) c_currentRoundingMode (/ 607.0 40.0)))))) (not (fp.lt c_~var_1_1~0 .cse1))) (and (fp.geq .cse1 .cse0) (fp.lt c_~var_1_1~0 c_~var_1_8~0)))) is different from true [2023-12-23 13:22:51,013 WARN L293 SmtUtils]: Spent 8.25s on a formula simplification that was a NOOP. DAG size: 7 (called from [L 731] de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher.simplify) [2023-12-23 13:22:59,459 WARN L293 SmtUtils]: Spent 8.45s on a formula simplification that was a NOOP. DAG size: 4 (called from [L 731] de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher.simplify) [2023-12-23 13:23:07,566 WARN L293 SmtUtils]: Spent 8.11s on a formula simplification that was a NOOP. DAG size: 4 (called from [L 731] de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher.simplify) [2023-12-23 13:23:15,867 WARN L293 SmtUtils]: Spent 8.30s on a formula simplification that was a NOOP. DAG size: 9 (called from [L 731] de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher.simplify) [2023-12-23 13:23:23,431 WARN L293 SmtUtils]: Spent 7.56s on a formula simplification that was a NOOP. DAG size: 7 (called from [L 731] de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher.simplify) [2023-12-23 13:23:32,019 WARN L293 SmtUtils]: Spent 8.59s on a formula simplification that was a NOOP. DAG size: 3 (called from [L 731] de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher.simplify) [2023-12-23 13:23:40,609 WARN L293 SmtUtils]: Spent 8.59s on a formula simplification that was a NOOP. DAG size: 6 (called from [L 731] de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher.simplify) [2023-12-23 13:23:49,188 WARN L293 SmtUtils]: Spent 8.58s on a formula simplification that was a NOOP. DAG size: 7 (called from [L 731] de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher.simplify) [2023-12-23 13:23:54,789 WARN L293 SmtUtils]: Spent 5.60s on a formula simplification that was a NOOP. DAG size: 4 (called from [L 731] de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher.simplify) [2023-12-23 13:24:02,383 WARN L293 SmtUtils]: Spent 7.59s on a formula simplification that was a NOOP. DAG size: 4 (called from [L 731] de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher.simplify) [2023-12-23 13:24:10,691 WARN L293 SmtUtils]: Spent 8.31s on a formula simplification that was a NOOP. DAG size: 9 (called from [L 731] de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher.simplify) [2023-12-23 13:24:19,251 WARN L293 SmtUtils]: Spent 8.56s on a formula simplification that was a NOOP. DAG size: 7 (called from [L 731] de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher.simplify) [2023-12-23 13:24:27,814 WARN L293 SmtUtils]: Spent 8.56s on a formula simplification that was a NOOP. DAG size: 3 (called from [L 731] de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher.simplify) [2023-12-23 13:24:34,287 WARN L876 $PredicateComparison]: unable to prove that (let ((.cse1 (fp.neg c_~var_1_1~0)) (.cse0 (fp.neg ((_ to_fp 11 53) c_currentRoundingMode (/ 7.0 8.0))))) (or (fp.geq c_~var_1_1~0 ((_ to_fp 11 53) c_currentRoundingMode ((_ to_fp 8 24) c_currentRoundingMode (/ 255.0 2.0)))) (fp.geq (fp.neg c_~var_1_8~0) .cse0) (not (fp.leq c_~var_1_40~0 c_~var_1_1~0)) (and (not (fp.lt c_~var_1_1~0 (fp.div c_currentRoundingMode c_~var_1_40~0 ((_ to_fp 11 53) c_currentRoundingMode ((_ to_fp 8 24) c_currentRoundingMode (/ 607.0 40.0)))))) (not (fp.lt c_~var_1_1~0 .cse1))) (and (fp.geq .cse1 .cse0) (fp.lt c_~var_1_1~0 c_~var_1_8~0)))) is different from true [2023-12-23 13:24:46,720 WARN L293 SmtUtils]: Spent 7.59s on a formula simplification that was a NOOP. DAG size: 7 (called from [L 731] de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher.simplify) [2023-12-23 13:24:53,952 WARN L293 SmtUtils]: Spent 7.23s on a formula simplification that was a NOOP. DAG size: 4 (called from [L 731] de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher.simplify) [2023-12-23 13:25:02,526 WARN L293 SmtUtils]: Spent 8.57s on a formula simplification that was a NOOP. DAG size: 4 (called from [L 731] de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher.simplify) [2023-12-23 13:25:10,856 WARN L293 SmtUtils]: Spent 8.33s on a formula simplification that was a NOOP. DAG size: 9 (called from [L 731] de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher.simplify) [2023-12-23 13:25:19,439 WARN L293 SmtUtils]: Spent 8.58s on a formula simplification that was a NOOP. DAG size: 7 (called from [L 731] de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher.simplify) [2023-12-23 13:25:29,831 WARN L293 SmtUtils]: Spent 7.57s on a formula simplification that was a NOOP. DAG size: 9 (called from [L 731] de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher.simplify) [2023-12-23 13:25:34,909 WARN L293 SmtUtils]: Spent 5.08s on a formula simplification that was a NOOP. DAG size: 4 (called from [L 731] de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher.simplify) [2023-12-23 13:25:43,493 WARN L293 SmtUtils]: Spent 8.58s on a formula simplification that was a NOOP. DAG size: 7 (called from [L 731] de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher.simplify) [2023-12-23 13:25:52,066 WARN L293 SmtUtils]: Spent 8.57s on a formula simplification that was a NOOP. DAG size: 4 (called from [L 731] de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher.simplify) [2023-12-23 13:26:00,641 WARN L293 SmtUtils]: Spent 8.58s on a formula simplification that was a NOOP. DAG size: 6 (called from [L 731] de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher.simplify) [2023-12-23 13:26:07,756 WARN L293 SmtUtils]: Spent 7.11s on a formula simplification that was a NOOP. DAG size: 3 (called from [L 731] de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher.simplify) [2023-12-23 13:26:14,798 WARN L293 SmtUtils]: Spent 7.04s on a formula simplification that was a NOOP. DAG size: 7 (called from [L 731] de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher.simplify) [2023-12-23 13:26:18,967 WARN L854 $PredicateComparison]: unable to prove that (let ((.cse1 (fp.neg c_~var_1_7~0)) (.cse0 (fp.neg ((_ to_fp 11 53) c_currentRoundingMode (/ 7.0 8.0))))) (or (not (fp.leq c_~var_1_40~0 c_~var_1_7~0)) (fp.geq (fp.neg c_~var_1_8~0) .cse0) (and (not (fp.lt c_~var_1_7~0 (fp.div c_currentRoundingMode c_~var_1_40~0 ((_ to_fp 11 53) c_currentRoundingMode ((_ to_fp 8 24) c_currentRoundingMode (/ 607.0 40.0)))))) (not (fp.lt c_~var_1_7~0 .cse1))) (fp.geq c_~var_1_7~0 ((_ to_fp 11 53) c_currentRoundingMode ((_ to_fp 8 24) c_currentRoundingMode (/ 255.0 2.0)))) (and (fp.lt c_~var_1_7~0 c_~var_1_8~0) (fp.geq .cse1 .cse0)))) is different from false [2023-12-23 13:26:23,126 WARN L876 $PredicateComparison]: unable to prove that (let ((.cse1 (fp.neg c_~var_1_7~0)) (.cse0 (fp.neg ((_ to_fp 11 53) c_currentRoundingMode (/ 7.0 8.0))))) (or (not (fp.leq c_~var_1_40~0 c_~var_1_7~0)) (fp.geq (fp.neg c_~var_1_8~0) .cse0) (and (not (fp.lt c_~var_1_7~0 (fp.div c_currentRoundingMode c_~var_1_40~0 ((_ to_fp 11 53) c_currentRoundingMode ((_ to_fp 8 24) c_currentRoundingMode (/ 607.0 40.0)))))) (not (fp.lt c_~var_1_7~0 .cse1))) (fp.geq c_~var_1_7~0 ((_ to_fp 11 53) c_currentRoundingMode ((_ to_fp 8 24) c_currentRoundingMode (/ 255.0 2.0)))) (and (fp.lt c_~var_1_7~0 c_~var_1_8~0) (fp.geq .cse1 .cse0)))) is different from true [2023-12-23 13:26:31,452 WARN L293 SmtUtils]: Spent 8.32s on a formula simplification that was a NOOP. DAG size: 9 (called from [L 731] de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher.simplify) [2023-12-23 13:26:38,296 WARN L293 SmtUtils]: Spent 6.84s on a formula simplification that was a NOOP. DAG size: 4 (called from [L 731] de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher.simplify) [2023-12-23 13:26:46,166 WARN L293 SmtUtils]: Spent 7.87s on a formula simplification that was a NOOP. DAG size: 7 (called from [L 731] de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher.simplify) [2023-12-23 13:26:58,277 WARN L293 SmtUtils]: Spent 8.61s on a formula simplification that was a NOOP. DAG size: 6 (called from [L 731] de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher.simplify) [2023-12-23 13:27:06,852 WARN L293 SmtUtils]: Spent 8.57s on a formula simplification that was a NOOP. DAG size: 3 (called from [L 731] de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher.simplify) [2023-12-23 13:27:14,475 WARN L293 SmtUtils]: Spent 7.62s on a formula simplification that was a NOOP. DAG size: 7 (called from [L 731] de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher.simplify) [2023-12-23 13:27:22,822 WARN L293 SmtUtils]: Spent 8.35s on a formula simplification that was a NOOP. DAG size: 9 (called from [L 731] de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher.simplify) [2023-12-23 13:27:30,018 WARN L293 SmtUtils]: Spent 7.20s on a formula simplification that was a NOOP. DAG size: 4 (called from [L 731] de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher.simplify) [2023-12-23 13:27:38,612 WARN L293 SmtUtils]: Spent 8.59s on a formula simplification that was a NOOP. DAG size: 7 (called from [L 731] de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher.simplify) [2023-12-23 13:27:44,979 WARN L293 SmtUtils]: Spent 6.37s on a formula simplification that was a NOOP. DAG size: 4 (called from [L 731] de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher.simplify) [2023-12-23 13:27:53,564 WARN L293 SmtUtils]: Spent 8.59s on a formula simplification that was a NOOP. DAG size: 6 (called from [L 731] de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher.simplify) [2023-12-23 13:27:59,085 WARN L293 SmtUtils]: Spent 5.52s on a formula simplification that was a NOOP. DAG size: 3 (called from [L 731] de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher.simplify) [2023-12-23 13:28:07,680 WARN L293 SmtUtils]: Spent 8.59s on a formula simplification that was a NOOP. DAG size: 7 (called from [L 731] de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher.simplify) [2023-12-23 13:28:16,002 WARN L293 SmtUtils]: Spent 8.32s on a formula simplification that was a NOOP. DAG size: 9 (called from [L 731] de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher.simplify) [2023-12-23 13:28:22,482 WARN L293 SmtUtils]: Spent 6.48s on a formula simplification that was a NOOP. DAG size: 4 (called from [L 731] de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher.simplify) [2023-12-23 13:28:31,080 WARN L293 SmtUtils]: Spent 8.60s on a formula simplification that was a NOOP. DAG size: 7 (called from [L 731] de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher.simplify) [2023-12-23 13:28:39,341 WARN L293 SmtUtils]: Spent 8.26s on a formula simplification that was a NOOP. DAG size: 4 (called from [L 731] de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher.simplify) [2023-12-23 13:28:47,926 WARN L293 SmtUtils]: Spent 8.58s on a formula simplification that was a NOOP. DAG size: 6 (called from [L 731] de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher.simplify) [2023-12-23 13:28:55,715 WARN L293 SmtUtils]: Spent 7.79s on a formula simplification that was a NOOP. DAG size: 3 (called from [L 731] de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher.simplify) [2023-12-23 13:29:04,308 WARN L293 SmtUtils]: Spent 8.59s on a formula simplification that was a NOOP. DAG size: 7 (called from [L 731] de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher.simplify) [2023-12-23 13:29:12,639 WARN L293 SmtUtils]: Spent 8.33s on a formula simplification that was a NOOP. DAG size: 9 (called from [L 731] de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher.simplify) [2023-12-23 13:29:19,685 WARN L293 SmtUtils]: Spent 7.05s on a formula simplification that was a NOOP. DAG size: 4 (called from [L 731] de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher.simplify) [2023-12-23 13:29:28,199 WARN L293 SmtUtils]: Spent 8.51s on a formula simplification that was a NOOP. DAG size: 7 (called from [L 731] de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher.simplify) [2023-12-23 13:29:35,117 WARN L293 SmtUtils]: Spent 6.92s on a formula simplification that was a NOOP. DAG size: 4 (called from [L 731] de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher.simplify) [2023-12-23 13:29:43,690 WARN L293 SmtUtils]: Spent 8.57s on a formula simplification that was a NOOP. DAG size: 6 (called from [L 731] de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher.simplify) [2023-12-23 13:29:52,261 WARN L293 SmtUtils]: Spent 8.57s on a formula simplification that was a NOOP. DAG size: 3 (called from [L 731] de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher.simplify) [2023-12-23 13:30:00,844 WARN L293 SmtUtils]: Spent 8.58s on a formula simplification that was a NOOP. DAG size: 7 (called from [L 731] de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher.simplify) [2023-12-23 13:30:09,169 WARN L293 SmtUtils]: Spent 8.32s on a formula simplification that was a NOOP. DAG size: 9 (called from [L 731] de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher.simplify) [2023-12-23 13:30:16,891 WARN L293 SmtUtils]: Spent 7.72s on a formula simplification that was a NOOP. DAG size: 4 (called from [L 731] de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher.simplify) [2023-12-23 13:30:25,465 WARN L293 SmtUtils]: Spent 8.57s on a formula simplification that was a NOOP. DAG size: 7 (called from [L 731] de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher.simplify) [2023-12-23 13:30:34,037 WARN L293 SmtUtils]: Spent 8.57s on a formula simplification that was a NOOP. DAG size: 4 (called from [L 731] de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher.simplify) [2023-12-23 13:30:42,624 WARN L293 SmtUtils]: Spent 8.59s on a formula simplification that was a NOOP. DAG size: 6 (called from [L 731] de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher.simplify) [2023-12-23 13:30:51,214 WARN L293 SmtUtils]: Spent 8.59s on a formula simplification that was a NOOP. DAG size: 3 (called from [L 731] de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher.simplify) Received shutdown request... [2023-12-23 13:30:59,750 WARN L340 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (4)] Timeout while monitored process is still running, waiting 1000 ms for graceful end [2023-12-23 13:30:59,750 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 [2023-12-23 13:30:59,795 WARN L293 SmtUtils]: Spent 8.58s on a formula simplification that was a NOOP. DAG size: 7 (called from [L 731] de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher.simplify) [2023-12-23 13:30:59,799 INFO L805 garLoopResultBuilder]: Registering result TIMEOUT for location ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION (0 of 1 remaining) [2023-12-23 13:30:59,814 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 (4)] Ended with exit code 0 [2023-12-23 13:31:00,004 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 [2023-12-23 13:31:00,005 WARN L619 AbstractCegarLoop]: Verification canceled: while NwaCegarLoop was analyzing trace of length 284 with TraceHistMax 48,while TraceCheckSpWp was constructing backward predicates,while PolyPacSimplificationTermWalker was simplifying a ∧-2-1 term,while PolyPacSimplificationTermWalker was simplifying 2 xjuncts wrt. a ∧-4-2-1 context. [2023-12-23 13:31:00,009 INFO L445 BasicCegarLoop]: Path program histogram: [1, 1, 1] [2023-12-23 13:31:00,011 INFO L179 ceAbstractionStarter]: Computing trace abstraction results [2023-12-23 13:31:00,013 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 23.12 01:31:00 BoogieIcfgContainer [2023-12-23 13:31:00,013 INFO L131 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2023-12-23 13:31:00,013 INFO L158 Benchmark]: Toolchain (without parser) took 876585.57ms. Allocated memory was 306.2MB in the beginning and 368.1MB in the end (delta: 61.9MB). Free memory was 258.8MB in the beginning and 135.3MB in the end (delta: 123.4MB). Peak memory consumption was 186.5MB. Max. memory is 8.0GB. [2023-12-23 13:31:00,014 INFO L158 Benchmark]: CDTParser took 0.20ms. Allocated memory is still 189.8MB. Free memory is still 135.9MB. There was no memory consumed. Max. memory is 8.0GB. [2023-12-23 13:31:00,014 INFO L158 Benchmark]: CACSL2BoogieTranslator took 327.04ms. Allocated memory is still 306.2MB. Free memory was 258.8MB in the beginning and 242.0MB in the end (delta: 16.8MB). Peak memory consumption was 16.8MB. Max. memory is 8.0GB. [2023-12-23 13:31:00,014 INFO L158 Benchmark]: Boogie Procedure Inliner took 53.45ms. Allocated memory is still 306.2MB. Free memory was 242.0MB in the beginning and 238.9MB in the end (delta: 3.1MB). Peak memory consumption was 3.1MB. Max. memory is 8.0GB. [2023-12-23 13:31:00,014 INFO L158 Benchmark]: Boogie Preprocessor took 69.12ms. Allocated memory is still 306.2MB. Free memory was 238.9MB in the beginning and 235.2MB in the end (delta: 3.7MB). Peak memory consumption was 4.2MB. Max. memory is 8.0GB. [2023-12-23 13:31:00,015 INFO L158 Benchmark]: RCFGBuilder took 9122.69ms. Allocated memory is still 306.2MB. Free memory was 235.2MB in the beginning and 205.3MB in the end (delta: 29.9MB). Peak memory consumption was 29.4MB. Max. memory is 8.0GB. [2023-12-23 13:31:00,015 INFO L158 Benchmark]: TraceAbstraction took 867006.38ms. Allocated memory was 306.2MB in the beginning and 368.1MB in the end (delta: 61.9MB). Free memory was 204.8MB in the beginning and 135.3MB in the end (delta: 69.4MB). Peak memory consumption was 132.0MB. Max. memory is 8.0GB. [2023-12-23 13:31:00,016 INFO L338 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.20ms. Allocated memory is still 189.8MB. Free memory is still 135.9MB. There was no memory consumed. Max. memory is 8.0GB. * CACSL2BoogieTranslator took 327.04ms. Allocated memory is still 306.2MB. Free memory was 258.8MB in the beginning and 242.0MB in the end (delta: 16.8MB). Peak memory consumption was 16.8MB. Max. memory is 8.0GB. * Boogie Procedure Inliner took 53.45ms. Allocated memory is still 306.2MB. Free memory was 242.0MB in the beginning and 238.9MB in the end (delta: 3.1MB). Peak memory consumption was 3.1MB. Max. memory is 8.0GB. * Boogie Preprocessor took 69.12ms. Allocated memory is still 306.2MB. Free memory was 238.9MB in the beginning and 235.2MB in the end (delta: 3.7MB). Peak memory consumption was 4.2MB. Max. memory is 8.0GB. * RCFGBuilder took 9122.69ms. Allocated memory is still 306.2MB. Free memory was 235.2MB in the beginning and 205.3MB in the end (delta: 29.9MB). Peak memory consumption was 29.4MB. Max. memory is 8.0GB. * TraceAbstraction took 867006.38ms. Allocated memory was 306.2MB in the beginning and 368.1MB in the end (delta: 61.9MB). Free memory was 204.8MB in the beginning and 135.3MB in the end (delta: 69.4MB). Peak memory consumption was 132.0MB. 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 284 with TraceHistMax 48,while TraceCheckSpWp was constructing backward predicates,while PolyPacSimplificationTermWalker was simplifying a ∧-2-1 term,while PolyPacSimplificationTermWalker was simplifying 2 xjuncts wrt. a ∧-4-2-1 context. - StatisticsResult: Ultimate Automizer benchmark data CFG has 2 procedures, 105 locations, 1 error locations. Started 1 CEGAR loops. OverallTime: 866.9s, OverallIterations: 3, TraceHistogramMax: 48, PathProgramHistogramMax: 1, EmptinessCheckTime: 0.0s, AutomataDifference: 4.1s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 182 SdHoareTripleChecker+Valid, 3.4s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 155 mSDsluCounter, 627 SdHoareTripleChecker+Invalid, 3.1s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 279 mSDsCounter, 103 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 602 IncrementalHoareTripleChecker+Invalid, 705 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 103 mSolverCounterUnsat, 348 mSDtfsCounter, 602 mSolverCounterSat, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown, PredicateUnifierStatistics: 0 DeclaredPredicates, 858 GetRequests, 840 SyntacticMatches, 1 SemanticMatches, 17 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 44 ImplicationChecksByTransitivity, 0.8s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=113occurred in iteration=2, InterpolantAutomatonStates: 19, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: 0.1s AutomataMinimizationTime, 2 MinimizatonAttempts, 104 StatesRemovedByMinimization, 1 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.1s SsaConstructionTime, 1.7s SatisfiabilityAnalysisTime, 2.6s InterpolantComputationTime, 566 NumberOfCodeBlocks, 566 NumberOfCodeBlocksAsserted, 2 NumberOfCheckSat, 846 ConstructedInterpolants, 0 QuantifiedInterpolants, 1383 SizeOfPredicates, 6 NumberOfNonLiveVariables, 902 ConjunctsInSsa, 6 ConjunctsInUnsatCore, 3 InterpolantComputations, 1 PerfectInterpolantSequences, 13410/13536 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