/usr/lib/jvm/java-1.11.0-openjdk-amd64/bin/java -Xmx8000000000 -Xss4m -jar ./plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata ./data -s ../../../trunk/examples/settings/default/automizer/svcomp-Reach-32bit-Automizer_Bitvector.epf -tc ../../../trunk/examples/toolchains/AutomizerCInline.xml -i ../../../trunk/examples/svcomp/hardness-nfm22/hardness_fillercode_fillercodesize_ps-cn-250_file-43.i -------------------------------------------------------------------------------- This is Ultimate 0.2.4-tmp.fs.bitabs-eval-d9c3e40-m [2023-12-23 02:26:32,559 INFO L188 SettingsManager]: Resetting all preferences to default values... [2023-12-23 02:26:32,614 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 02:26:32,616 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2023-12-23 02:26:32,617 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2023-12-23 02:26:32,635 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2023-12-23 02:26:32,635 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2023-12-23 02:26:32,636 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2023-12-23 02:26:32,636 INFO L151 SettingsManager]: Preferences of Boogie Preprocessor differ from their defaults: [2023-12-23 02:26:32,639 INFO L153 SettingsManager]: * Use memory slicer=true [2023-12-23 02:26:32,639 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2023-12-23 02:26:32,640 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2023-12-23 02:26:32,640 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2023-12-23 02:26:32,641 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2023-12-23 02:26:32,641 INFO L153 SettingsManager]: * Use SBE=true [2023-12-23 02:26:32,642 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2023-12-23 02:26:32,642 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2023-12-23 02:26:32,642 INFO L153 SettingsManager]: * sizeof long=4 [2023-12-23 02:26:32,642 INFO L153 SettingsManager]: * sizeof POINTER=4 [2023-12-23 02:26:32,642 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2023-12-23 02:26:32,642 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2023-12-23 02:26:32,643 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2023-12-23 02:26:32,643 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2023-12-23 02:26:32,643 INFO L153 SettingsManager]: * Adapt memory model on pointer casts if necessary=true [2023-12-23 02:26:32,643 INFO L153 SettingsManager]: * Use bitvectors instead of ints=true [2023-12-23 02:26:32,643 INFO L153 SettingsManager]: * Allow undefined functions=false [2023-12-23 02:26:32,643 INFO L153 SettingsManager]: * Memory model=HoenickeLindenmann_4ByteResolution [2023-12-23 02:26:32,643 INFO L153 SettingsManager]: * sizeof long double=12 [2023-12-23 02:26:32,644 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2023-12-23 02:26:32,644 INFO L153 SettingsManager]: * Use constant arrays=true [2023-12-23 02:26:32,644 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2023-12-23 02:26:32,645 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2023-12-23 02:26:32,645 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2023-12-23 02:26:32,645 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2023-12-23 02:26:32,645 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2023-12-23 02:26:32,645 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2023-12-23 02:26:32,645 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2023-12-23 02:26:32,645 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2023-12-23 02:26:32,645 INFO L153 SettingsManager]: * Trace refinement strategy=WOLF [2023-12-23 02:26:32,645 INFO L153 SettingsManager]: * Command for external solver=cvc4 --incremental --print-success --lang smt [2023-12-23 02:26:32,646 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2023-12-23 02:26:32,646 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2023-12-23 02:26:32,646 INFO L153 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2023-12-23 02:26:32,646 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2023-12-23 02:26:32,646 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2023-12-23 02:26:32,646 INFO L153 SettingsManager]: * Logic for external solver=AUFBV [2023-12-23 02:26:32,646 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release [2023-12-23 02:26:32,841 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2023-12-23 02:26:32,857 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2023-12-23 02:26:32,859 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2023-12-23 02:26:32,860 INFO L270 PluginConnector]: Initializing CDTParser... [2023-12-23 02:26:32,860 INFO L274 PluginConnector]: CDTParser initialized [2023-12-23 02:26:32,861 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/hardness-nfm22/hardness_fillercode_fillercodesize_ps-cn-250_file-43.i [2023-12-23 02:26:33,889 INFO L533 CDTParser]: Created temporary CDT project at NULL [2023-12-23 02:26:34,111 INFO L384 CDTParser]: Found 1 translation units. [2023-12-23 02:26:34,111 INFO L180 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/hardness-nfm22/hardness_fillercode_fillercodesize_ps-cn-250_file-43.i [2023-12-23 02:26:34,122 INFO L427 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/3e5427815/f5740c1ba35142c681fbf97f2387d6ec/FLAG09ad3bf31 [2023-12-23 02:26:34,134 INFO L435 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/3e5427815/f5740c1ba35142c681fbf97f2387d6ec [2023-12-23 02:26:34,135 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2023-12-23 02:26:34,137 INFO L133 ToolchainWalker]: Walking toolchain with 5 elements. [2023-12-23 02:26:34,139 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2023-12-23 02:26:34,139 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2023-12-23 02:26:34,142 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2023-12-23 02:26:34,142 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 23.12 02:26:34" (1/1) ... [2023-12-23 02:26:34,143 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@1e9e5df0 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.12 02:26:34, skipping insertion in model container [2023-12-23 02:26:34,143 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 23.12 02:26:34" (1/1) ... [2023-12-23 02:26:34,177 INFO L177 MainTranslator]: Built tables and reachable declarations [2023-12-23 02:26:34,281 WARN L239 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/trunk/examples/svcomp/hardness-nfm22/hardness_fillercode_fillercodesize_ps-cn-250_file-43.i[916,929] [2023-12-23 02:26:34,352 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-12-23 02:26:34,379 INFO L202 MainTranslator]: Completed pre-run [2023-12-23 02:26:34,386 WARN L239 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/trunk/examples/svcomp/hardness-nfm22/hardness_fillercode_fillercodesize_ps-cn-250_file-43.i[916,929] [2023-12-23 02:26:34,470 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-12-23 02:26:34,492 INFO L206 MainTranslator]: Completed translation [2023-12-23 02:26:34,494 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.12 02:26:34 WrapperNode [2023-12-23 02:26:34,494 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2023-12-23 02:26:34,495 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2023-12-23 02:26:34,495 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2023-12-23 02:26:34,495 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2023-12-23 02:26:34,499 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.12 02:26:34" (1/1) ... [2023-12-23 02:26:34,520 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.12 02:26:34" (1/1) ... [2023-12-23 02:26:34,564 INFO L138 Inliner]: procedures = 27, calls = 94, calls flagged for inlining = 8, calls inlined = 8, statements flattened = 460 [2023-12-23 02:26:34,565 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2023-12-23 02:26:34,566 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2023-12-23 02:26:34,566 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2023-12-23 02:26:34,566 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2023-12-23 02:26:34,573 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.12 02:26:34" (1/1) ... [2023-12-23 02:26:34,574 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.12 02:26:34" (1/1) ... [2023-12-23 02:26:34,622 INFO L184 PluginConnector]: Executing the observer MemorySlicer from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.12 02:26:34" (1/1) ... [2023-12-23 02:26:34,642 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 02:26:34,643 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.12 02:26:34" (1/1) ... [2023-12-23 02:26:34,646 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.12 02:26:34" (1/1) ... [2023-12-23 02:26:34,670 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.12 02:26:34" (1/1) ... [2023-12-23 02:26:34,673 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.12 02:26:34" (1/1) ... [2023-12-23 02:26:34,677 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.12 02:26:34" (1/1) ... [2023-12-23 02:26:34,679 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.12 02:26:34" (1/1) ... [2023-12-23 02:26:34,683 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2023-12-23 02:26:34,683 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2023-12-23 02:26:34,683 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2023-12-23 02:26:34,683 INFO L274 PluginConnector]: RCFGBuilder initialized [2023-12-23 02:26:34,694 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.12 02:26:34" (1/1) ... [2023-12-23 02:26:34,698 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2023-12-23 02:26:34,706 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-12-23 02:26:34,754 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 02:26:34,774 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 02:26:34,781 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2023-12-23 02:26:34,781 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE1#0 [2023-12-23 02:26:34,781 INFO L130 BoogieDeclarations]: Found specification of procedure assume_abort_if_not [2023-12-23 02:26:34,783 INFO L138 BoogieDeclarations]: Found implementation of procedure assume_abort_if_not [2023-12-23 02:26:34,783 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2023-12-23 02:26:34,783 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2023-12-23 02:26:34,902 INFO L241 CfgBuilder]: Building ICFG [2023-12-23 02:26:34,904 INFO L267 CfgBuilder]: Building CFG for each procedure with an implementation [2023-12-23 02:26:52,899 INFO L282 CfgBuilder]: Performing block encoding [2023-12-23 02:26:52,937 INFO L304 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2023-12-23 02:26:52,937 INFO L309 CfgBuilder]: Removed 1 assume(true) statements. [2023-12-23 02:26:52,938 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 23.12 02:26:52 BoogieIcfgContainer [2023-12-23 02:26:52,938 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2023-12-23 02:26:52,939 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2023-12-23 02:26:52,939 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2023-12-23 02:26:52,942 INFO L274 PluginConnector]: TraceAbstraction initialized [2023-12-23 02:26:52,942 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 23.12 02:26:34" (1/3) ... [2023-12-23 02:26:52,942 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@385ec5e3 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 23.12 02:26:52, skipping insertion in model container [2023-12-23 02:26:52,942 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.12 02:26:34" (2/3) ... [2023-12-23 02:26:52,942 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@385ec5e3 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 23.12 02:26:52, skipping insertion in model container [2023-12-23 02:26:52,943 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 23.12 02:26:52" (3/3) ... [2023-12-23 02:26:52,943 INFO L112 eAbstractionObserver]: Analyzing ICFG hardness_fillercode_fillercodesize_ps-cn-250_file-43.i [2023-12-23 02:26:52,955 INFO L204 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2023-12-23 02:26:52,955 INFO L163 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2023-12-23 02:26:52,991 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2023-12-23 02:26:52,995 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;@4eaacad9, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2023-12-23 02:26:52,995 INFO L358 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2023-12-23 02:26:53,000 INFO L276 IsEmpty]: Start isEmpty. Operand has 198 states, 114 states have (on average 1.5263157894736843) internal successors, (174), 115 states have internal predecessors, (174), 81 states have call successors, (81), 1 states have call predecessors, (81), 1 states have return successors, (81), 81 states have call predecessors, (81), 81 states have call successors, (81) [2023-12-23 02:26:53,030 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 497 [2023-12-23 02:26:53,030 INFO L187 NwaCegarLoop]: Found error trace [2023-12-23 02:26:53,031 INFO L195 NwaCegarLoop]: trace histogram [81, 81, 81, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 02:26:53,031 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-23 02:26:53,037 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-23 02:26:53,038 INFO L85 PathProgramCache]: Analyzing trace with hash 1615292671, now seen corresponding path program 1 times [2023-12-23 02:26:53,052 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-12-23 02:26:53,052 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1962074288] [2023-12-23 02:26:53,053 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-23 02:26:53,053 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 02:26:53,053 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2023-12-23 02:26:53,063 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 02:26:53,064 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 02:26:53,910 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-23 02:26:53,948 INFO L262 TraceCheckSpWp]: Trace formula consists of 789 conjuncts, 1 conjunts are in the unsatisfiable core [2023-12-23 02:26:53,961 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-23 02:26:54,080 INFO L134 CoverageAnalysis]: Checked inductivity of 12960 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 12960 trivial. 0 not checked. [2023-12-23 02:26:54,080 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-12-23 02:26:54,081 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-12-23 02:26:54,081 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1962074288] [2023-12-23 02:26:54,082 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1962074288] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-23 02:26:54,082 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-23 02:26:54,082 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2023-12-23 02:26:54,084 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [930015001] [2023-12-23 02:26:54,084 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-23 02:26:54,090 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2023-12-23 02:26:54,091 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-12-23 02:26:54,114 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2023-12-23 02:26:54,114 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2023-12-23 02:26:54,117 INFO L87 Difference]: Start difference. First operand has 198 states, 114 states have (on average 1.5263157894736843) internal successors, (174), 115 states have internal predecessors, (174), 81 states have call successors, (81), 1 states have call predecessors, (81), 1 states have return successors, (81), 81 states have call predecessors, (81), 81 states have call successors, (81) Second operand has 2 states, 2 states have (on average 47.0) internal successors, (94), 2 states have internal predecessors, (94), 1 states have call successors, (81), 1 states have call predecessors, (81), 1 states have return successors, (81), 1 states have call predecessors, (81), 1 states have call successors, (81) [2023-12-23 02:26:58,380 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.17s for a HTC check with result UNKNOWN. Formula has sorts [Bool, FloatingPoint, RoundingMode, Real, BitVec], hasArrays=false, hasNonlinArith=false, quantifiers [] [2023-12-23 02:26:58,381 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-23 02:26:58,381 INFO L93 Difference]: Finished difference Result 393 states and 751 transitions. [2023-12-23 02:26:58,446 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2023-12-23 02:26:58,447 INFO L78 Accepts]: Start accepts. Automaton has has 2 states, 2 states have (on average 47.0) internal successors, (94), 2 states have internal predecessors, (94), 1 states have call successors, (81), 1 states have call predecessors, (81), 1 states have return successors, (81), 1 states have call predecessors, (81), 1 states have call successors, (81) Word has length 496 [2023-12-23 02:26:58,450 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-23 02:26:58,456 INFO L225 Difference]: With dead ends: 393 [2023-12-23 02:26:58,456 INFO L226 Difference]: Without dead ends: 196 [2023-12-23 02:26:58,466 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 495 GetRequests, 495 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 02:26:58,469 INFO L413 NwaCegarLoop]: 326 mSDtfsCounter, 0 mSDsluCounter, 0 mSDsCounter, 0 mSdLazyCounter, 2 mSolverCounterSat, 0 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 4.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 326 SdHoareTripleChecker+Invalid, 3 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 2 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 4.2s IncrementalHoareTripleChecker+Time [2023-12-23 02:26:58,472 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 326 Invalid, 3 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 2 Invalid, 1 Unknown, 0 Unchecked, 4.2s Time] [2023-12-23 02:26:58,488 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 196 states. [2023-12-23 02:26:58,579 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 196 to 196. [2023-12-23 02:26:58,582 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 196 states, 113 states have (on average 1.4778761061946903) internal successors, (167), 113 states have internal predecessors, (167), 81 states have call successors, (81), 1 states have call predecessors, (81), 1 states have return successors, (81), 81 states have call predecessors, (81), 81 states have call successors, (81) [2023-12-23 02:26:58,586 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 196 states to 196 states and 329 transitions. [2023-12-23 02:26:58,587 INFO L78 Accepts]: Start accepts. Automaton has 196 states and 329 transitions. Word has length 496 [2023-12-23 02:26:58,590 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-23 02:26:58,591 INFO L495 AbstractCegarLoop]: Abstraction has 196 states and 329 transitions. [2023-12-23 02:26:58,591 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 2 states, 2 states have (on average 47.0) internal successors, (94), 2 states have internal predecessors, (94), 1 states have call successors, (81), 1 states have call predecessors, (81), 1 states have return successors, (81), 1 states have call predecessors, (81), 1 states have call successors, (81) [2023-12-23 02:26:58,591 INFO L276 IsEmpty]: Start isEmpty. Operand 196 states and 329 transitions. [2023-12-23 02:26:58,601 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 497 [2023-12-23 02:26:58,601 INFO L187 NwaCegarLoop]: Found error trace [2023-12-23 02:26:58,602 INFO L195 NwaCegarLoop]: trace histogram [81, 81, 81, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 02:26:58,623 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (2)] Ended with exit code 0 [2023-12-23 02:26:58,802 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 02:26:58,803 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-23 02:26:58,803 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-23 02:26:58,804 INFO L85 PathProgramCache]: Analyzing trace with hash -756387009, now seen corresponding path program 1 times [2023-12-23 02:26:58,805 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-12-23 02:26:58,806 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [206661214] [2023-12-23 02:26:58,806 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-23 02:26:58,806 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 02:26:58,806 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2023-12-23 02:26:58,807 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 02:26:58,824 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 02:26:59,607 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-23 02:26:59,646 INFO L262 TraceCheckSpWp]: Trace formula consists of 790 conjuncts, 5 conjunts are in the unsatisfiable core [2023-12-23 02:26:59,655 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-23 02:27:01,549 INFO L134 CoverageAnalysis]: Checked inductivity of 12960 backedges. 6404 proven. 138 refuted. 0 times theorem prover too weak. 6418 trivial. 0 not checked. [2023-12-23 02:27:01,550 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-12-23 02:27:01,888 INFO L134 CoverageAnalysis]: Checked inductivity of 12960 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 12960 trivial. 0 not checked. [2023-12-23 02:27:01,889 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-12-23 02:27:01,889 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [206661214] [2023-12-23 02:27:01,889 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [206661214] provided 1 perfect and 1 imperfect interpolant sequences [2023-12-23 02:27:01,889 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2023-12-23 02:27:01,889 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [6] total 7 [2023-12-23 02:27:01,889 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [904304065] [2023-12-23 02:27:01,889 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-23 02:27:01,891 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-12-23 02:27:01,891 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-12-23 02:27:01,892 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-12-23 02:27:01,892 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=13, Invalid=29, Unknown=0, NotChecked=0, Total=42 [2023-12-23 02:27:01,892 INFO L87 Difference]: Start difference. First operand 196 states and 329 transitions. Second operand has 3 states, 3 states have (on average 31.333333333333332) internal successors, (94), 3 states have internal predecessors, (94), 1 states have call successors, (81), 1 states have call predecessors, (81), 1 states have return successors, (81), 1 states have call predecessors, (81), 1 states have call successors, (81) [2023-12-23 02:27:06,374 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.14s for a HTC check with result UNKNOWN. Formula has sorts [Bool, FloatingPoint, RoundingMode, Real, BitVec], hasArrays=false, hasNonlinArith=false, quantifiers [] [2023-12-23 02:27:10,305 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 3.93s for a HTC check with result INVALID. Formula has sorts [Bool, FloatingPoint, RoundingMode, Real, BitVec], hasArrays=false, hasNonlinArith=false, quantifiers [] [2023-12-23 02:27:10,476 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-23 02:27:10,476 INFO L93 Difference]: Finished difference Result 504 states and 849 transitions. [2023-12-23 02:27:10,477 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-12-23 02:27:10,477 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 31.333333333333332) internal successors, (94), 3 states have internal predecessors, (94), 1 states have call successors, (81), 1 states have call predecessors, (81), 1 states have return successors, (81), 1 states have call predecessors, (81), 1 states have call successors, (81) Word has length 496 [2023-12-23 02:27:10,479 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-23 02:27:10,482 INFO L225 Difference]: With dead ends: 504 [2023-12-23 02:27:10,482 INFO L226 Difference]: Without dead ends: 309 [2023-12-23 02:27:10,484 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 990 GetRequests, 985 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=13, Invalid=29, Unknown=0, NotChecked=0, Total=42 [2023-12-23 02:27:10,484 INFO L413 NwaCegarLoop]: 317 mSDtfsCounter, 187 mSDsluCounter, 310 mSDsCounter, 0 mSdLazyCounter, 28 mSolverCounterSat, 2 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 8.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 187 SdHoareTripleChecker+Valid, 627 SdHoareTripleChecker+Invalid, 31 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 28 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 8.5s IncrementalHoareTripleChecker+Time [2023-12-23 02:27:10,485 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [187 Valid, 627 Invalid, 31 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 28 Invalid, 1 Unknown, 0 Unchecked, 8.5s Time] [2023-12-23 02:27:10,485 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 309 states. [2023-12-23 02:27:10,564 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 309 to 306. [2023-12-23 02:27:10,564 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 306 states, 189 states have (on average 1.5343915343915344) internal successors, (290), 190 states have internal predecessors, (290), 114 states have call successors, (114), 2 states have call predecessors, (114), 2 states have return successors, (114), 113 states have call predecessors, (114), 114 states have call successors, (114) [2023-12-23 02:27:10,566 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 306 states to 306 states and 518 transitions. [2023-12-23 02:27:10,566 INFO L78 Accepts]: Start accepts. Automaton has 306 states and 518 transitions. Word has length 496 [2023-12-23 02:27:10,567 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-23 02:27:10,567 INFO L495 AbstractCegarLoop]: Abstraction has 306 states and 518 transitions. [2023-12-23 02:27:10,568 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 31.333333333333332) internal successors, (94), 3 states have internal predecessors, (94), 1 states have call successors, (81), 1 states have call predecessors, (81), 1 states have return successors, (81), 1 states have call predecessors, (81), 1 states have call successors, (81) [2023-12-23 02:27:10,568 INFO L276 IsEmpty]: Start isEmpty. Operand 306 states and 518 transitions. [2023-12-23 02:27:10,573 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 497 [2023-12-23 02:27:10,573 INFO L187 NwaCegarLoop]: Found error trace [2023-12-23 02:27:10,573 INFO L195 NwaCegarLoop]: trace histogram [81, 81, 81, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 02:27:10,598 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 02:27:10,793 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 02:27:10,794 INFO L420 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-23 02:27:10,794 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-23 02:27:10,795 INFO L85 PathProgramCache]: Analyzing trace with hash -1150753795, now seen corresponding path program 1 times [2023-12-23 02:27:10,796 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-12-23 02:27:10,796 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1212701529] [2023-12-23 02:27:10,796 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-23 02:27:10,797 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 02:27:10,797 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2023-12-23 02:27:10,798 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 02:27:10,799 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 02:27:11,517 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-23 02:27:11,555 INFO L262 TraceCheckSpWp]: Trace formula consists of 790 conjuncts, 17 conjunts are in the unsatisfiable core [2023-12-23 02:27:11,564 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-23 02:27:15,896 INFO L134 CoverageAnalysis]: Checked inductivity of 12960 backedges. 8465 proven. 309 refuted. 0 times theorem prover too weak. 4186 trivial. 0 not checked. [2023-12-23 02:27:15,897 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-12-23 02:27:17,245 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-12-23 02:27:17,245 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1212701529] [2023-12-23 02:27:17,245 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1212701529] provided 0 perfect and 1 imperfect interpolant sequences [2023-12-23 02:27:17,246 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleCvc4 [548830907] [2023-12-23 02:27:17,246 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-23 02:27:17,246 INFO L173 SolverBuilder]: Constructing external solver with command: cvc4 --incremental --print-success --lang smt [2023-12-23 02:27:17,246 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/cvc4 [2023-12-23 02:27:17,304 INFO L229 MonitoredProcess]: Starting monitored process 5 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/cvc4 --incremental --print-success --lang smt (exit command is (exit), workingDir is null) [2023-12-23 02:27:17,355 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/cvc4 --incremental --print-success --lang smt (5)] Waiting until timeout for monitored process [2023-12-23 02:27:21,091 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-23 02:27:21,177 INFO L262 TraceCheckSpWp]: Trace formula consists of 790 conjuncts, 12 conjunts are in the unsatisfiable core [2023-12-23 02:27:21,183 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-23 02:27:25,262 INFO L134 CoverageAnalysis]: Checked inductivity of 12960 backedges. 5811 proven. 141 refuted. 0 times theorem prover too weak. 7008 trivial. 0 not checked. [2023-12-23 02:27:25,262 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-12-23 02:27:27,190 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleCvc4 [548830907] provided 0 perfect and 1 imperfect interpolant sequences [2023-12-23 02:27:27,191 INFO L185 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2023-12-23 02:27:27,191 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [18, 11] total 25 [2023-12-23 02:27:27,191 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [261291929] [2023-12-23 02:27:27,191 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2023-12-23 02:27:27,192 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 25 states [2023-12-23 02:27:27,192 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-12-23 02:27:27,193 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 25 interpolants. [2023-12-23 02:27:27,193 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=179, Invalid=877, Unknown=0, NotChecked=0, Total=1056 [2023-12-23 02:27:27,194 INFO L87 Difference]: Start difference. First operand 306 states and 518 transitions. Second operand has 25 states, 25 states have (on average 6.88) internal successors, (172), 23 states have internal predecessors, (172), 8 states have call successors, (120), 8 states have call predecessors, (120), 12 states have return successors, (121), 8 states have call predecessors, (121), 8 states have call successors, (121) [2023-12-23 02:27:43,634 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.20s for a HTC check with result UNKNOWN. Formula has sorts [Bool, FloatingPoint, RoundingMode, Real, BitVec], hasArrays=false, hasNonlinArith=false, quantifiers [] [2023-12-23 02:27:46,546 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.91s for a HTC check with result INVALID. Formula has sorts [Bool, FloatingPoint, RoundingMode, Real, BitVec], hasArrays=false, hasNonlinArith=false, quantifiers [] [2023-12-23 02:27:50,624 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.01s for a HTC check with result UNKNOWN. Formula has sorts [Bool, FloatingPoint, RoundingMode, Real, BitVec], hasArrays=false, hasNonlinArith=false, quantifiers [] [2023-12-23 02:27:54,630 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.00s for a HTC check with result UNKNOWN. Formula has sorts [Bool, FloatingPoint, RoundingMode, Real, BitVec], hasArrays=false, hasNonlinArith=false, quantifiers [] [2023-12-23 02:27:58,638 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.01s for a HTC check with result UNKNOWN. Formula has sorts [Bool, FloatingPoint, RoundingMode, Real, BitVec], hasArrays=false, hasNonlinArith=false, quantifiers [0] [2023-12-23 02:28:01,106 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.47s for a HTC check with result INVALID. Formula has sorts [Bool, FloatingPoint, RoundingMode, Real, BitVec], hasArrays=false, hasNonlinArith=false, quantifiers [] [2023-12-23 02:28:14,966 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-23 02:28:14,967 INFO L93 Difference]: Finished difference Result 882 states and 1438 transitions. [2023-12-23 02:28:14,968 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 41 states. [2023-12-23 02:28:14,968 INFO L78 Accepts]: Start accepts. Automaton has has 25 states, 25 states have (on average 6.88) internal successors, (172), 23 states have internal predecessors, (172), 8 states have call successors, (120), 8 states have call predecessors, (120), 12 states have return successors, (121), 8 states have call predecessors, (121), 8 states have call successors, (121) Word has length 496 [2023-12-23 02:28:14,969 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-23 02:28:14,973 INFO L225 Difference]: With dead ends: 882 [2023-12-23 02:28:14,973 INFO L226 Difference]: Without dead ends: 577 [2023-12-23 02:28:14,975 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 1203 GetRequests, 1136 SyntacticMatches, 0 SemanticMatches, 67 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1298 ImplicationChecksByTransitivity, 9.9s TimeCoverageRelationStatistics Valid=1044, Invalid=3648, Unknown=0, NotChecked=0, Total=4692 [2023-12-23 02:28:14,985 INFO L413 NwaCegarLoop]: 326 mSDtfsCounter, 852 mSDsluCounter, 1794 mSDsCounter, 0 mSdLazyCounter, 3148 mSolverCounterSat, 788 mSolverCounterUnsat, 4 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 39.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 854 SdHoareTripleChecker+Valid, 2120 SdHoareTripleChecker+Invalid, 3940 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 788 IncrementalHoareTripleChecker+Valid, 3148 IncrementalHoareTripleChecker+Invalid, 4 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 40.2s IncrementalHoareTripleChecker+Time [2023-12-23 02:28:14,990 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [854 Valid, 2120 Invalid, 3940 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [788 Valid, 3148 Invalid, 4 Unknown, 0 Unchecked, 40.2s Time] [2023-12-23 02:28:14,992 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 577 states. [2023-12-23 02:28:15,086 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 577 to 558. [2023-12-23 02:28:15,087 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 558 states, 342 states have (on average 1.435672514619883) internal successors, (491), 345 states have internal predecessors, (491), 202 states have call successors, (202), 13 states have call predecessors, (202), 13 states have return successors, (202), 199 states have call predecessors, (202), 202 states have call successors, (202) [2023-12-23 02:28:15,097 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 558 states to 558 states and 895 transitions. [2023-12-23 02:28:15,098 INFO L78 Accepts]: Start accepts. Automaton has 558 states and 895 transitions. Word has length 496 [2023-12-23 02:28:15,099 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-23 02:28:15,099 INFO L495 AbstractCegarLoop]: Abstraction has 558 states and 895 transitions. [2023-12-23 02:28:15,100 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 25 states, 25 states have (on average 6.88) internal successors, (172), 23 states have internal predecessors, (172), 8 states have call successors, (120), 8 states have call predecessors, (120), 12 states have return successors, (121), 8 states have call predecessors, (121), 8 states have call successors, (121) [2023-12-23 02:28:15,100 INFO L276 IsEmpty]: Start isEmpty. Operand 558 states and 895 transitions. [2023-12-23 02:28:15,108 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 497 [2023-12-23 02:28:15,108 INFO L187 NwaCegarLoop]: Found error trace [2023-12-23 02:28:15,108 INFO L195 NwaCegarLoop]: trace histogram [81, 81, 81, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 02:28:15,131 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 [2023-12-23 02:28:15,326 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/cvc4 --incremental --print-success --lang smt (5)] Forceful destruction successful, exit code 0 [2023-12-23 02:28:15,509 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=3,5 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/cvc4 --incremental --print-success --lang smt [2023-12-23 02:28:15,509 INFO L420 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-23 02:28:15,510 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-23 02:28:15,510 INFO L85 PathProgramCache]: Analyzing trace with hash -1660226885, now seen corresponding path program 1 times [2023-12-23 02:28:15,511 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-12-23 02:28:15,511 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1105910019] [2023-12-23 02:28:15,511 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-23 02:28:15,511 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 02:28:15,511 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2023-12-23 02:28:15,520 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) [2023-12-23 02:28:15,521 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 [2023-12-23 02:28:16,301 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-23 02:28:16,338 INFO L262 TraceCheckSpWp]: Trace formula consists of 789 conjuncts, 5 conjunts are in the unsatisfiable core [2023-12-23 02:28:16,344 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-23 02:28:20,176 INFO L134 CoverageAnalysis]: Checked inductivity of 12960 backedges. 6558 proven. 117 refuted. 0 times theorem prover too weak. 6285 trivial. 0 not checked. [2023-12-23 02:28:20,176 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-12-23 02:28:20,847 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-12-23 02:28:20,847 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1105910019] [2023-12-23 02:28:20,847 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1105910019] provided 0 perfect and 1 imperfect interpolant sequences [2023-12-23 02:28:20,847 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleCvc4 [682718138] [2023-12-23 02:28:20,847 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-23 02:28:20,847 INFO L173 SolverBuilder]: Constructing external solver with command: cvc4 --incremental --print-success --lang smt [2023-12-23 02:28:20,847 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/cvc4 [2023-12-23 02:28:20,848 INFO L229 MonitoredProcess]: Starting monitored process 7 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/cvc4 --incremental --print-success --lang smt (exit command is (exit), workingDir is null) [2023-12-23 02:28:20,851 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/cvc4 --incremental --print-success --lang smt (7)] Waiting until timeout for monitored process [2023-12-23 02:28:22,972 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-23 02:28:23,013 INFO L262 TraceCheckSpWp]: Trace formula consists of 789 conjuncts, 2 conjunts are in the unsatisfiable core [2023-12-23 02:28:23,019 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-23 02:28:25,177 INFO L134 CoverageAnalysis]: Checked inductivity of 12960 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 12960 trivial. 0 not checked. [2023-12-23 02:28:25,178 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-12-23 02:28:25,181 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleCvc4 [682718138] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-23 02:28:25,181 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2023-12-23 02:28:25,181 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [5] total 5 [2023-12-23 02:28:25,181 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1412987644] [2023-12-23 02:28:25,181 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-23 02:28:25,182 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-12-23 02:28:25,182 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-12-23 02:28:25,182 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-12-23 02:28:25,183 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=25, Invalid=31, Unknown=0, NotChecked=0, Total=56 [2023-12-23 02:28:25,183 INFO L87 Difference]: Start difference. First operand 558 states and 895 transitions. Second operand has 3 states, 3 states have (on average 31.333333333333332) internal successors, (94), 2 states have internal predecessors, (94), 1 states have call successors, (81), 1 states have call predecessors, (81), 1 states have return successors, (81), 1 states have call predecessors, (81), 1 states have call successors, (81) [2023-12-23 02:28:28,126 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.41s for a HTC check with result INVALID. Formula has sorts [Bool, FloatingPoint, RoundingMode, Real, BitVec], hasArrays=false, hasNonlinArith=false, quantifiers [] [2023-12-23 02:28:28,376 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-23 02:28:28,376 INFO L93 Difference]: Finished difference Result 1444 states and 2322 transitions. [2023-12-23 02:28:28,376 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-12-23 02:28:28,376 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 31.333333333333332) internal successors, (94), 2 states have internal predecessors, (94), 1 states have call successors, (81), 1 states have call predecessors, (81), 1 states have return successors, (81), 1 states have call predecessors, (81), 1 states have call successors, (81) Word has length 496 [2023-12-23 02:28:28,377 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-23 02:28:28,382 INFO L225 Difference]: With dead ends: 1444 [2023-12-23 02:28:28,382 INFO L226 Difference]: Without dead ends: 887 [2023-12-23 02:28:28,384 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 1250 GetRequests, 1244 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 12 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=25, Invalid=31, Unknown=0, NotChecked=0, Total=56 [2023-12-23 02:28:28,386 INFO L413 NwaCegarLoop]: 382 mSDtfsCounter, 90 mSDsluCounter, 320 mSDsCounter, 0 mSdLazyCounter, 14 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 3.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 90 SdHoareTripleChecker+Valid, 702 SdHoareTripleChecker+Invalid, 14 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 14 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 3.1s IncrementalHoareTripleChecker+Time [2023-12-23 02:28:28,386 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [90 Valid, 702 Invalid, 14 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 14 Invalid, 0 Unknown, 0 Unchecked, 3.1s Time] [2023-12-23 02:28:28,389 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 887 states. [2023-12-23 02:28:28,443 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 887 to 885. [2023-12-23 02:28:28,445 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 885 states, 547 states have (on average 1.4497257769652652) internal successors, (793), 551 states have internal predecessors, (793), 316 states have call successors, (316), 21 states have call predecessors, (316), 21 states have return successors, (316), 312 states have call predecessors, (316), 316 states have call successors, (316) [2023-12-23 02:28:28,449 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 885 states to 885 states and 1425 transitions. [2023-12-23 02:28:28,449 INFO L78 Accepts]: Start accepts. Automaton has 885 states and 1425 transitions. Word has length 496 [2023-12-23 02:28:28,450 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-23 02:28:28,450 INFO L495 AbstractCegarLoop]: Abstraction has 885 states and 1425 transitions. [2023-12-23 02:28:28,451 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 31.333333333333332) internal successors, (94), 2 states have internal predecessors, (94), 1 states have call successors, (81), 1 states have call predecessors, (81), 1 states have return successors, (81), 1 states have call predecessors, (81), 1 states have call successors, (81) [2023-12-23 02:28:28,451 INFO L276 IsEmpty]: Start isEmpty. Operand 885 states and 1425 transitions. [2023-12-23 02:28:28,454 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 498 [2023-12-23 02:28:28,454 INFO L187 NwaCegarLoop]: Found error trace [2023-12-23 02:28:28,454 INFO L195 NwaCegarLoop]: trace histogram [81, 81, 81, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 02:28:28,486 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/cvc4 --incremental --print-success --lang smt (7)] Forceful destruction successful, exit code 0 [2023-12-23 02:28:28,681 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 [2023-12-23 02:28:28,860 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 7 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/cvc4 --incremental --print-success --lang smt,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 [2023-12-23 02:28:28,861 INFO L420 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-23 02:28:28,861 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-23 02:28:28,861 INFO L85 PathProgramCache]: Analyzing trace with hash 605994409, now seen corresponding path program 1 times [2023-12-23 02:28:28,862 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-12-23 02:28:28,862 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1933525070] [2023-12-23 02:28:28,862 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-23 02:28:28,862 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 02:28:28,862 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2023-12-23 02:28:28,865 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) [2023-12-23 02:28:28,868 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (8)] Waiting until timeout for monitored process [2023-12-23 02:28:29,592 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-23 02:28:29,629 INFO L262 TraceCheckSpWp]: Trace formula consists of 791 conjuncts, 5 conjunts are in the unsatisfiable core [2023-12-23 02:28:29,634 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-23 02:28:29,959 INFO L134 CoverageAnalysis]: Checked inductivity of 12960 backedges. 860 proven. 6 refuted. 0 times theorem prover too weak. 12094 trivial. 0 not checked. [2023-12-23 02:28:29,959 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-12-23 02:28:30,620 INFO L134 CoverageAnalysis]: Checked inductivity of 12960 backedges. 234 proven. 6 refuted. 0 times theorem prover too weak. 12720 trivial. 0 not checked. [2023-12-23 02:28:30,621 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-12-23 02:28:30,621 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1933525070] [2023-12-23 02:28:30,621 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1933525070] provided 0 perfect and 2 imperfect interpolant sequences [2023-12-23 02:28:30,621 INFO L185 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2023-12-23 02:28:30,621 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [6, 6] total 9 [2023-12-23 02:28:30,621 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [402525100] [2023-12-23 02:28:30,621 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2023-12-23 02:28:30,625 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2023-12-23 02:28:30,625 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-12-23 02:28:30,626 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2023-12-23 02:28:30,626 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=22, Invalid=50, Unknown=0, NotChecked=0, Total=72 [2023-12-23 02:28:30,626 INFO L87 Difference]: Start difference. First operand 885 states and 1425 transitions. Second operand has 9 states, 9 states have (on average 11.88888888888889) internal successors, (107), 9 states have internal predecessors, (107), 2 states have call successors, (83), 2 states have call predecessors, (83), 4 states have return successors, (84), 2 states have call predecessors, (84), 2 states have call successors, (84) [2023-12-23 02:28:36,602 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.15s for a HTC check with result UNKNOWN. Formula has sorts [Bool, FloatingPoint, RoundingMode, Real, BitVec], hasArrays=false, hasNonlinArith=false, quantifiers [] [2023-12-23 02:28:40,607 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.01s for a HTC check with result UNKNOWN. Formula has sorts [Bool, FloatingPoint, RoundingMode, Real, BitVec], hasArrays=false, hasNonlinArith=false, quantifiers [] [2023-12-23 02:28:44,615 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.01s for a HTC check with result UNKNOWN. Formula has sorts [Bool, FloatingPoint, RoundingMode, Real, BitVec], hasArrays=false, hasNonlinArith=false, quantifiers [] [2023-12-23 02:28:47,411 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-23 02:28:47,411 INFO L93 Difference]: Finished difference Result 3633 states and 5781 transitions. [2023-12-23 02:28:47,412 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 25 states. [2023-12-23 02:28:47,412 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 9 states have (on average 11.88888888888889) internal successors, (107), 9 states have internal predecessors, (107), 2 states have call successors, (83), 2 states have call predecessors, (83), 4 states have return successors, (84), 2 states have call predecessors, (84), 2 states have call successors, (84) Word has length 497 [2023-12-23 02:28:47,413 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-23 02:28:47,427 INFO L225 Difference]: With dead ends: 3633 [2023-12-23 02:28:47,427 INFO L226 Difference]: Without dead ends: 2749 [2023-12-23 02:28:47,430 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 1012 GetRequests, 986 SyntacticMatches, 1 SemanticMatches, 25 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 150 ImplicationChecksByTransitivity, 0.7s TimeCoverageRelationStatistics Valid=206, Invalid=496, Unknown=0, NotChecked=0, Total=702 [2023-12-23 02:28:47,431 INFO L413 NwaCegarLoop]: 241 mSDtfsCounter, 859 mSDsluCounter, 712 mSDsCounter, 0 mSdLazyCounter, 673 mSolverCounterSat, 680 mSolverCounterUnsat, 3 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 15.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 940 SdHoareTripleChecker+Valid, 953 SdHoareTripleChecker+Invalid, 1356 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 680 IncrementalHoareTripleChecker+Valid, 673 IncrementalHoareTripleChecker+Invalid, 3 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 16.0s IncrementalHoareTripleChecker+Time [2023-12-23 02:28:47,431 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [940 Valid, 953 Invalid, 1356 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [680 Valid, 673 Invalid, 3 Unknown, 0 Unchecked, 16.0s Time] [2023-12-23 02:28:47,433 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2749 states. [2023-12-23 02:28:47,578 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2749 to 905. [2023-12-23 02:28:47,580 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 905 states, 565 states have (on average 1.4353982300884955) internal successors, (811), 569 states have internal predecessors, (811), 316 states have call successors, (316), 23 states have call predecessors, (316), 23 states have return successors, (316), 312 states have call predecessors, (316), 316 states have call successors, (316) [2023-12-23 02:28:47,583 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 905 states to 905 states and 1443 transitions. [2023-12-23 02:28:47,583 INFO L78 Accepts]: Start accepts. Automaton has 905 states and 1443 transitions. Word has length 497 [2023-12-23 02:28:47,584 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-23 02:28:47,584 INFO L495 AbstractCegarLoop]: Abstraction has 905 states and 1443 transitions. [2023-12-23 02:28:47,585 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 9 states have (on average 11.88888888888889) internal successors, (107), 9 states have internal predecessors, (107), 2 states have call successors, (83), 2 states have call predecessors, (83), 4 states have return successors, (84), 2 states have call predecessors, (84), 2 states have call successors, (84) [2023-12-23 02:28:47,585 INFO L276 IsEmpty]: Start isEmpty. Operand 905 states and 1443 transitions. [2023-12-23 02:28:47,587 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 498 [2023-12-23 02:28:47,587 INFO L187 NwaCegarLoop]: Found error trace [2023-12-23 02:28:47,587 INFO L195 NwaCegarLoop]: trace histogram [81, 81, 81, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 02:28:47,624 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 [2023-12-23 02:28:47,800 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 [2023-12-23 02:28:47,801 INFO L420 AbstractCegarLoop]: === Iteration 6 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-23 02:28:47,801 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-23 02:28:47,801 INFO L85 PathProgramCache]: Analyzing trace with hash 1627062763, now seen corresponding path program 1 times [2023-12-23 02:28:47,802 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-12-23 02:28:47,802 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1558501604] [2023-12-23 02:28:47,803 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-23 02:28:47,803 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 02:28:47,803 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2023-12-23 02:28:47,804 INFO L229 MonitoredProcess]: Starting monitored process 9 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2023-12-23 02:28:47,832 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (9)] Waiting until timeout for monitored process [2023-12-23 02:28:48,594 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-23 02:28:48,637 INFO L262 TraceCheckSpWp]: Trace formula consists of 791 conjuncts, 17 conjunts are in the unsatisfiable core [2023-12-23 02:28:48,645 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-23 02:29:03,960 WARN L293 SmtUtils]: Spent 6.01s 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 02:29:13,709 WARN L293 SmtUtils]: Spent 7.28s 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 02:29:24,353 WARN L293 SmtUtils]: Spent 8.11s on a formula simplification that was a NOOP. DAG size: 11 (called from [L 731] de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher.simplify) [2023-12-23 02:29:31,615 WARN L293 SmtUtils]: Spent 7.26s 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 02:29:35,675 WARN L854 $PredicateComparison]: unable to prove that (and (let ((.cse0 (fp.gt c_~var_1_5~0 c_~var_1_6~0))) (or (and (= c_~var_1_1~0 c_~var_1_6~0) (not .cse0)) (and .cse0 (= c_~var_1_5~0 c_~var_1_1~0)))) (= c_~var_1_26~0 (_ bv50 32)) (not (fp.eq (fp.neg ((_ to_fp 8 24) c_currentRoundingMode (/ 2001.0 2.0))) (fp.mul c_currentRoundingMode c_~var_1_2~0 (fp.div c_currentRoundingMode c_~var_1_3~0 c_~var_1_4~0)))) (= c_~last_1_var_1_26~0 (_ bv50 32))) is different from false [2023-12-23 02:29:46,907 WARN L293 SmtUtils]: Spent 8.22s 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 02:29:55,112 WARN L293 SmtUtils]: Spent 8.20s 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 02:30:03,331 WARN L293 SmtUtils]: Spent 8.22s 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 02:30:11,528 WARN L293 SmtUtils]: Spent 8.20s 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 02:30:18,381 WARN L293 SmtUtils]: Spent 6.85s 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 02:30:26,207 WARN L293 SmtUtils]: Spent 7.82s on a formula simplification that was a NOOP. DAG size: 11 (called from [L 731] de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher.simplify) [2023-12-23 02:30:39,193 WARN L293 SmtUtils]: Spent 8.19s on a formula simplification that was a NOOP. DAG size: 5 (called from [L 731] de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher.simplify) [2023-12-23 02:30:45,430 WARN L293 SmtUtils]: Spent 6.24s 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 02:30:49,494 WARN L854 $PredicateComparison]: unable to prove that (and (let ((.cse0 (fp.gt c_~var_1_5~0 c_~var_1_6~0))) (or (and (= c_~var_1_1~0 c_~var_1_6~0) (not .cse0)) (and .cse0 (= c_~var_1_5~0 c_~var_1_1~0)))) (fp.gt c_~var_1_1~0 ((_ to_fp 11 53) c_currentRoundingMode c_~var_1_4~0)) (= c_~var_1_26~0 (_ bv50 32)) (not (fp.eq (fp.neg ((_ to_fp 8 24) c_currentRoundingMode (/ 2001.0 2.0))) (fp.mul c_currentRoundingMode c_~var_1_2~0 (fp.div c_currentRoundingMode c_~var_1_3~0 c_~var_1_4~0)))) (= ((_ sign_extend 8) c_~var_1_10~0) c_~var_1_11~0) (= c_~last_1_var_1_26~0 (_ bv50 32))) is different from false [2023-12-23 02:30:53,557 WARN L876 $PredicateComparison]: unable to prove that (and (let ((.cse0 (fp.gt c_~var_1_5~0 c_~var_1_6~0))) (or (and (= c_~var_1_1~0 c_~var_1_6~0) (not .cse0)) (and .cse0 (= c_~var_1_5~0 c_~var_1_1~0)))) (fp.gt c_~var_1_1~0 ((_ to_fp 11 53) c_currentRoundingMode c_~var_1_4~0)) (= c_~var_1_26~0 (_ bv50 32)) (not (fp.eq (fp.neg ((_ to_fp 8 24) c_currentRoundingMode (/ 2001.0 2.0))) (fp.mul c_currentRoundingMode c_~var_1_2~0 (fp.div c_currentRoundingMode c_~var_1_3~0 c_~var_1_4~0)))) (= ((_ sign_extend 8) c_~var_1_10~0) c_~var_1_11~0) (= c_~last_1_var_1_26~0 (_ bv50 32))) is different from true [2023-12-23 02:31:01,777 WARN L293 SmtUtils]: Spent 8.22s 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 02:31:09,979 WARN L293 SmtUtils]: Spent 8.20s 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 02:31:17,159 WARN L293 SmtUtils]: Spent 7.18s 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 02:31:25,264 WARN L293 SmtUtils]: Spent 8.10s 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 02:31:37,977 WARN L293 SmtUtils]: Spent 8.13s on a formula simplification that was a NOOP. DAG size: 11 (called from [L 731] de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher.simplify) [2023-12-23 02:31:45,756 WARN L293 SmtUtils]: Spent 5.50s 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 02:31:56,331 WARN L293 SmtUtils]: Spent 8.21s 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 02:32:00,390 WARN L854 $PredicateComparison]: unable to prove that (and (let ((.cse0 (fp.gt c_~var_1_5~0 c_~var_1_6~0))) (or (and (= c_~var_1_1~0 c_~var_1_6~0) (not .cse0)) (and .cse0 (= c_~var_1_5~0 c_~var_1_1~0)))) (fp.gt c_~var_1_1~0 ((_ to_fp 11 53) c_currentRoundingMode c_~var_1_4~0)) (= c_~var_1_13~0 (_ bv0 8)) (= c_~var_1_26~0 (_ bv50 32)) (not (fp.eq (fp.neg ((_ to_fp 8 24) c_currentRoundingMode (/ 2001.0 2.0))) (fp.mul c_currentRoundingMode c_~var_1_2~0 (fp.div c_currentRoundingMode c_~var_1_3~0 c_~var_1_4~0)))) (= ((_ sign_extend 8) c_~var_1_10~0) c_~var_1_11~0) (= c_~last_1_var_1_26~0 (_ bv50 32))) is different from false [2023-12-23 02:32:04,455 WARN L876 $PredicateComparison]: unable to prove that (and (let ((.cse0 (fp.gt c_~var_1_5~0 c_~var_1_6~0))) (or (and (= c_~var_1_1~0 c_~var_1_6~0) (not .cse0)) (and .cse0 (= c_~var_1_5~0 c_~var_1_1~0)))) (fp.gt c_~var_1_1~0 ((_ to_fp 11 53) c_currentRoundingMode c_~var_1_4~0)) (= c_~var_1_13~0 (_ bv0 8)) (= c_~var_1_26~0 (_ bv50 32)) (not (fp.eq (fp.neg ((_ to_fp 8 24) c_currentRoundingMode (/ 2001.0 2.0))) (fp.mul c_currentRoundingMode c_~var_1_2~0 (fp.div c_currentRoundingMode c_~var_1_3~0 c_~var_1_4~0)))) (= ((_ sign_extend 8) c_~var_1_10~0) c_~var_1_11~0) (= c_~last_1_var_1_26~0 (_ bv50 32))) is different from true [2023-12-23 02:32:12,110 WARN L293 SmtUtils]: Spent 7.65s 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 02:32:20,302 WARN L293 SmtUtils]: Spent 8.19s 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 02:32:34,219 WARN L293 SmtUtils]: Spent 8.13s on a formula simplification that was a NOOP. DAG size: 11 (called from [L 731] de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher.simplify) [2023-12-23 02:32:42,416 WARN L293 SmtUtils]: Spent 8.20s 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 02:32:54,817 WARN L293 SmtUtils]: Spent 8.19s on a formula simplification that was a NOOP. DAG size: 5 (called from [L 731] de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher.simplify) [2023-12-23 02:33:03,015 WARN L293 SmtUtils]: Spent 8.20s 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 02:33:11,268 WARN L293 SmtUtils]: Spent 8.23s 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 02:33:29,301 WARN L293 SmtUtils]: Spent 8.25s 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 02:33:40,558 WARN L293 SmtUtils]: Spent 8.15s on a formula simplification that was a NOOP. DAG size: 11 (called from [L 731] de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher.simplify) [2023-12-23 02:33:48,806 WARN L293 SmtUtils]: Spent 8.25s 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 02:33:57,045 WARN L293 SmtUtils]: Spent 8.24s 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 02:34:05,310 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 02:34:13,567 WARN L293 SmtUtils]: Spent 8.26s on a formula simplification that was a NOOP. DAG size: 5 (called from [L 731] de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher.simplify) [2023-12-23 02:34:23,799 WARN L293 SmtUtils]: Spent 6.10s 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 02:34:36,510 WARN L293 SmtUtils]: Spent 8.24s 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 02:34:44,800 WARN L293 SmtUtils]: Spent 8.29s 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 02:34:53,075 WARN L293 SmtUtils]: Spent 8.27s on a formula simplification that was a NOOP. DAG size: 5 (called from [L 731] de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher.simplify) [2023-12-23 02:35:02,782 WARN L293 SmtUtils]: Spent 6.70s 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 02:35:10,098 WARN L293 SmtUtils]: Spent 7.31s on a formula simplification that was a NOOP. DAG size: 5 (called from [L 731] de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher.simplify) [2023-12-23 02:35:18,437 WARN L293 SmtUtils]: Spent 8.34s 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 02:35:25,197 WARN L293 SmtUtils]: Spent 6.76s 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 02:35:29,281 WARN L854 $PredicateComparison]: unable to prove that (and (let ((.cse0 (fp.gt c_~var_1_5~0 c_~var_1_6~0))) (or (and (= c_~var_1_1~0 c_~var_1_6~0) (not .cse0)) (and .cse0 (= c_~var_1_5~0 c_~var_1_1~0)))) (fp.leq c_~var_1_1~0 (fp.add c_currentRoundingMode c_~var_1_1~0 c_~var_1_1~0)) (fp.gt c_~var_1_1~0 ((_ to_fp 11 53) c_currentRoundingMode c_~var_1_4~0)) (= c_~var_1_13~0 (_ bv0 8)) (= c_~var_1_26~0 (_ bv50 32)) (not (fp.eq (fp.neg ((_ to_fp 8 24) c_currentRoundingMode (/ 2001.0 2.0))) (fp.mul c_currentRoundingMode c_~var_1_2~0 (fp.div c_currentRoundingMode c_~var_1_3~0 c_~var_1_4~0)))) (let ((.cse10 ((_ sign_extend 24) c_~var_1_18~0)) (.cse6 ((_ sign_extend 24) c_~var_1_19~0)) (.cse5 ((_ sign_extend 24) c_~var_1_10~0))) (let ((.cse4 (= c_~var_1_16~0 ((_ extract 7 0) .cse5))) (.cse7 ((_ sign_extend 24) c_~var_1_20~0)) (.cse1 (bvslt .cse10 .cse6))) (or (and (not .cse1) (let ((.cse2 (bvadd .cse6 .cse7))) (let ((.cse3 (bvslt .cse5 .cse2))) (or (and (= c_~var_1_16~0 ((_ extract 7 0) .cse2)) (not .cse3)) (and .cse4 .cse3))))) (and (let ((.cse9 (bvadd .cse10 .cse7))) (let ((.cse8 (bvslt .cse5 .cse9))) (or (and (not .cse8) (= ((_ extract 7 0) .cse9) c_~var_1_16~0)) (and .cse4 .cse8)))) .cse1)))) (= ((_ sign_extend 8) c_~var_1_10~0) c_~var_1_11~0) (= c_~last_1_var_1_26~0 (_ bv50 32))) is different from false [2023-12-23 02:35:33,360 WARN L876 $PredicateComparison]: unable to prove that (and (let ((.cse0 (fp.gt c_~var_1_5~0 c_~var_1_6~0))) (or (and (= c_~var_1_1~0 c_~var_1_6~0) (not .cse0)) (and .cse0 (= c_~var_1_5~0 c_~var_1_1~0)))) (fp.leq c_~var_1_1~0 (fp.add c_currentRoundingMode c_~var_1_1~0 c_~var_1_1~0)) (fp.gt c_~var_1_1~0 ((_ to_fp 11 53) c_currentRoundingMode c_~var_1_4~0)) (= c_~var_1_13~0 (_ bv0 8)) (= c_~var_1_26~0 (_ bv50 32)) (not (fp.eq (fp.neg ((_ to_fp 8 24) c_currentRoundingMode (/ 2001.0 2.0))) (fp.mul c_currentRoundingMode c_~var_1_2~0 (fp.div c_currentRoundingMode c_~var_1_3~0 c_~var_1_4~0)))) (let ((.cse10 ((_ sign_extend 24) c_~var_1_18~0)) (.cse6 ((_ sign_extend 24) c_~var_1_19~0)) (.cse5 ((_ sign_extend 24) c_~var_1_10~0))) (let ((.cse4 (= c_~var_1_16~0 ((_ extract 7 0) .cse5))) (.cse7 ((_ sign_extend 24) c_~var_1_20~0)) (.cse1 (bvslt .cse10 .cse6))) (or (and (not .cse1) (let ((.cse2 (bvadd .cse6 .cse7))) (let ((.cse3 (bvslt .cse5 .cse2))) (or (and (= c_~var_1_16~0 ((_ extract 7 0) .cse2)) (not .cse3)) (and .cse4 .cse3))))) (and (let ((.cse9 (bvadd .cse10 .cse7))) (let ((.cse8 (bvslt .cse5 .cse9))) (or (and (not .cse8) (= ((_ extract 7 0) .cse9) c_~var_1_16~0)) (and .cse4 .cse8)))) .cse1)))) (= ((_ sign_extend 8) c_~var_1_10~0) c_~var_1_11~0) (= c_~last_1_var_1_26~0 (_ bv50 32))) is different from true [2023-12-23 02:35:41,654 WARN L293 SmtUtils]: Spent 8.25s 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 02:35:49,940 WARN L293 SmtUtils]: Spent 8.28s 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 02:35:58,211 WARN L293 SmtUtils]: Spent 8.27s 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 02:36:06,480 WARN L293 SmtUtils]: Spent 8.27s 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 02:36:14,790 WARN L293 SmtUtils]: Spent 8.31s 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 02:36:22,989 WARN L293 SmtUtils]: Spent 8.20s on a formula simplification that was a NOOP. DAG size: 11 (called from [L 731] de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher.simplify) [2023-12-23 02:36:31,271 WARN L293 SmtUtils]: Spent 8.28s 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 02:36:41,348 WARN L293 SmtUtils]: Spent 8.29s 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 02:36:49,610 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 02:36:57,860 WARN L293 SmtUtils]: Spent 8.25s on a formula simplification that was a NOOP. DAG size: 5 (called from [L 731] de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher.simplify) [2023-12-23 02:37:06,131 WARN L293 SmtUtils]: Spent 8.27s on a formula simplification that was a NOOP. DAG size: 10 (called from [L 731] de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher.simplify) [2023-12-23 02:37:14,393 WARN L293 SmtUtils]: Spent 8.26s 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 02:37:25,762 WARN L293 SmtUtils]: Spent 6.53s on a formula simplification that was a NOOP. DAG size: 5 (called from [L 731] de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher.simplify) [2023-12-23 02:37:37,540 WARN L293 SmtUtils]: Spent 8.23s 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 02:37:45,795 WARN L293 SmtUtils]: Spent 8.25s on a formula simplification that was a NOOP. DAG size: 5 (called from [L 731] de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher.simplify) [2023-12-23 02:37:54,056 WARN L293 SmtUtils]: Spent 8.26s 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 02:38:01,927 WARN L293 SmtUtils]: Spent 7.87s 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 02:38:07,511 WARN L293 SmtUtils]: Spent 5.58s on a formula simplification that was a NOOP. DAG size: 5 (called from [L 731] de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher.simplify) [2023-12-23 02:38:15,769 WARN L293 SmtUtils]: Spent 8.26s 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 02:38:24,026 WARN L293 SmtUtils]: Spent 8.26s 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 02:38:28,099 WARN L854 $PredicateComparison]: unable to prove that (let ((.cse1 ((_ zero_extend 16) c_~var_1_24~0)) (.cse2 ((_ sign_extend 24) c_~var_1_10~0))) (and (let ((.cse0 (fp.gt c_~var_1_5~0 c_~var_1_6~0))) (or (and (= c_~var_1_1~0 c_~var_1_6~0) (not .cse0)) (and .cse0 (= c_~var_1_5~0 c_~var_1_1~0)))) (bvslt (bvneg (bvadd (bvneg .cse1) ((_ zero_extend 16) c_~var_1_14~0))) .cse2) (= c_~var_1_23~0 (bvadd .cse1 (_ bv4 32) ((_ sign_extend 24) c_~var_1_22~0))) (fp.leq c_~var_1_1~0 (fp.add c_currentRoundingMode c_~var_1_1~0 c_~var_1_1~0)) (fp.gt c_~var_1_1~0 ((_ to_fp 11 53) c_currentRoundingMode c_~var_1_4~0)) (= c_~var_1_13~0 (_ bv0 8)) (= c_~var_1_26~0 (_ bv50 32)) (not (fp.eq (fp.neg ((_ to_fp 8 24) c_currentRoundingMode (/ 2001.0 2.0))) (fp.mul c_currentRoundingMode c_~var_1_2~0 (fp.div c_currentRoundingMode c_~var_1_3~0 c_~var_1_4~0)))) (let ((.cse11 ((_ sign_extend 24) c_~var_1_18~0)) (.cse7 ((_ sign_extend 24) c_~var_1_19~0))) (let ((.cse6 (= c_~var_1_16~0 ((_ extract 7 0) .cse2))) (.cse8 ((_ sign_extend 24) c_~var_1_20~0)) (.cse3 (bvslt .cse11 .cse7))) (or (and (not .cse3) (let ((.cse4 (bvadd .cse7 .cse8))) (let ((.cse5 (bvslt .cse2 .cse4))) (or (and (= c_~var_1_16~0 ((_ extract 7 0) .cse4)) (not .cse5)) (and .cse6 .cse5))))) (and (let ((.cse10 (bvadd .cse11 .cse8))) (let ((.cse9 (bvslt .cse2 .cse10))) (or (and (not .cse9) (= ((_ extract 7 0) .cse10) c_~var_1_16~0)) (and .cse6 .cse9)))) .cse3)))) (= ((_ sign_extend 8) c_~var_1_10~0) c_~var_1_11~0) (= c_~last_1_var_1_26~0 (_ bv50 32)))) is different from false [2023-12-23 02:38:32,177 WARN L876 $PredicateComparison]: unable to prove that (let ((.cse1 ((_ zero_extend 16) c_~var_1_24~0)) (.cse2 ((_ sign_extend 24) c_~var_1_10~0))) (and (let ((.cse0 (fp.gt c_~var_1_5~0 c_~var_1_6~0))) (or (and (= c_~var_1_1~0 c_~var_1_6~0) (not .cse0)) (and .cse0 (= c_~var_1_5~0 c_~var_1_1~0)))) (bvslt (bvneg (bvadd (bvneg .cse1) ((_ zero_extend 16) c_~var_1_14~0))) .cse2) (= c_~var_1_23~0 (bvadd .cse1 (_ bv4 32) ((_ sign_extend 24) c_~var_1_22~0))) (fp.leq c_~var_1_1~0 (fp.add c_currentRoundingMode c_~var_1_1~0 c_~var_1_1~0)) (fp.gt c_~var_1_1~0 ((_ to_fp 11 53) c_currentRoundingMode c_~var_1_4~0)) (= c_~var_1_13~0 (_ bv0 8)) (= c_~var_1_26~0 (_ bv50 32)) (not (fp.eq (fp.neg ((_ to_fp 8 24) c_currentRoundingMode (/ 2001.0 2.0))) (fp.mul c_currentRoundingMode c_~var_1_2~0 (fp.div c_currentRoundingMode c_~var_1_3~0 c_~var_1_4~0)))) (let ((.cse11 ((_ sign_extend 24) c_~var_1_18~0)) (.cse7 ((_ sign_extend 24) c_~var_1_19~0))) (let ((.cse6 (= c_~var_1_16~0 ((_ extract 7 0) .cse2))) (.cse8 ((_ sign_extend 24) c_~var_1_20~0)) (.cse3 (bvslt .cse11 .cse7))) (or (and (not .cse3) (let ((.cse4 (bvadd .cse7 .cse8))) (let ((.cse5 (bvslt .cse2 .cse4))) (or (and (= c_~var_1_16~0 ((_ extract 7 0) .cse4)) (not .cse5)) (and .cse6 .cse5))))) (and (let ((.cse10 (bvadd .cse11 .cse8))) (let ((.cse9 (bvslt .cse2 .cse10))) (or (and (not .cse9) (= ((_ extract 7 0) .cse10) c_~var_1_16~0)) (and .cse6 .cse9)))) .cse3)))) (= ((_ sign_extend 8) c_~var_1_10~0) c_~var_1_11~0) (= c_~last_1_var_1_26~0 (_ bv50 32)))) is different from true [2023-12-23 02:38:40,443 WARN L293 SmtUtils]: Spent 8.24s 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 02:38:48,889 WARN L293 SmtUtils]: Spent 8.45s 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 02:38:57,140 WARN L293 SmtUtils]: Spent 8.25s 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 02:39:05,423 WARN L293 SmtUtils]: Spent 8.28s 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 02:39:13,716 WARN L293 SmtUtils]: Spent 8.29s 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 02:39:21,894 WARN L293 SmtUtils]: Spent 8.18s on a formula simplification that was a NOOP. DAG size: 11 (called from [L 731] de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher.simplify) [2023-12-23 02:39:30,177 WARN L293 SmtUtils]: Spent 8.28s 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 02:39:38,489 WARN L293 SmtUtils]: Spent 8.31s on a formula simplification that was a NOOP. DAG size: 5 (called from [L 731] de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher.simplify) [2023-12-23 02:39:44,540 WARN L293 SmtUtils]: Spent 6.05s 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 02:39:52,782 WARN L293 SmtUtils]: Spent 8.24s 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 02:40:01,404 WARN L293 SmtUtils]: Spent 7.49s on a formula simplification that was a NOOP. DAG size: 5 (called from [L 731] de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher.simplify) [2023-12-23 02:40:11,243 WARN L293 SmtUtils]: Spent 7.09s 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 02:40:25,519 WARN L293 SmtUtils]: Spent 7.40s 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 02:40:34,034 WARN L293 SmtUtils]: Spent 5.10s on a formula simplification that was a NOOP. DAG size: 5 (called from [L 731] de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher.simplify) [2023-12-23 02:40:42,239 WARN L293 SmtUtils]: Spent 8.20s 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 02:40:50,467 WARN L293 SmtUtils]: Spent 8.23s 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 02:40:58,603 WARN L293 SmtUtils]: Spent 8.14s on a formula simplification that was a NOOP. DAG size: 5 (called from [L 731] de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher.simplify) [2023-12-23 02:41:05,460 WARN L293 SmtUtils]: Spent 6.86s 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) Received shutdown request... [2023-12-23 02:41:12,836 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 02:41:12,854 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 (9)] Timeout while monitored process is still running, waiting 1000 ms for graceful end [2023-12-23 02:41:13,678 WARN L293 SmtUtils]: Spent 8.22s 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 02:41:13,681 INFO L805 garLoopResultBuilder]: Registering result TIMEOUT for location ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION (0 of 1 remaining) [2023-12-23 02:41:13,705 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (9)] Forceful destruction successful, exit code 0 [2023-12-23 02:41:13,893 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 9 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2023-12-23 02:41:13,893 WARN L619 AbstractCegarLoop]: Verification canceled: while NwaCegarLoop was analyzing trace of length 498 with TraceHistMax 81,while TraceCheckSpWp was constructing forward predicates,while PolyPacSimplificationTermWalker was simplifying a ∧-2-2-2-1 term,while PolyPacSimplificationTermWalker was simplifying 2 xjuncts wrt. a ∧-13-2-2-2-1 context. [2023-12-23 02:41:13,897 INFO L445 BasicCegarLoop]: Path program histogram: [1, 1, 1, 1, 1, 1] [2023-12-23 02:41:13,900 INFO L179 ceAbstractionStarter]: Computing trace abstraction results [2023-12-23 02:41:13,902 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 23.12 02:41:13 BoogieIcfgContainer [2023-12-23 02:41:13,903 INFO L131 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2023-12-23 02:41:13,903 INFO L158 Benchmark]: Toolchain (without parser) took 879766.47ms. Allocated memory was 186.6MB in the beginning and 278.9MB in the end (delta: 92.3MB). Free memory was 135.3MB in the beginning and 134.7MB in the end (delta: 529.0kB). Peak memory consumption was 93.6MB. Max. memory is 8.0GB. [2023-12-23 02:41:13,903 INFO L158 Benchmark]: CDTParser took 0.13ms. Allocated memory is still 186.6MB. Free memory is still 134.2MB. There was no memory consumed. Max. memory is 8.0GB. [2023-12-23 02:41:13,905 INFO L158 Benchmark]: CACSL2BoogieTranslator took 355.40ms. Allocated memory is still 186.6MB. Free memory was 134.9MB in the beginning and 110.5MB in the end (delta: 24.4MB). Peak memory consumption was 24.1MB. Max. memory is 8.0GB. [2023-12-23 02:41:13,906 INFO L158 Benchmark]: Boogie Procedure Inliner took 70.36ms. Allocated memory is still 186.6MB. Free memory was 110.5MB in the beginning and 105.9MB in the end (delta: 4.6MB). Peak memory consumption was 5.2MB. Max. memory is 8.0GB. [2023-12-23 02:41:13,906 INFO L158 Benchmark]: Boogie Preprocessor took 117.20ms. Allocated memory is still 186.6MB. Free memory was 105.9MB in the beginning and 151.1MB in the end (delta: -45.2MB). Peak memory consumption was 7.5MB. Max. memory is 8.0GB. [2023-12-23 02:41:13,906 INFO L158 Benchmark]: RCFGBuilder took 18254.69ms. Allocated memory is still 186.6MB. Free memory was 151.1MB in the beginning and 102.9MB in the end (delta: 48.2MB). Peak memory consumption was 48.2MB. Max. memory is 8.0GB. [2023-12-23 02:41:13,906 INFO L158 Benchmark]: TraceAbstraction took 860963.32ms. Allocated memory was 186.6MB in the beginning and 278.9MB in the end (delta: 92.3MB). Free memory was 102.3MB in the beginning and 134.7MB in the end (delta: -32.4MB). Peak memory consumption was 59.9MB. Max. memory is 8.0GB. [2023-12-23 02:41:13,909 INFO L338 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.13ms. Allocated memory is still 186.6MB. Free memory is still 134.2MB. There was no memory consumed. Max. memory is 8.0GB. * CACSL2BoogieTranslator took 355.40ms. Allocated memory is still 186.6MB. Free memory was 134.9MB in the beginning and 110.5MB in the end (delta: 24.4MB). Peak memory consumption was 24.1MB. Max. memory is 8.0GB. * Boogie Procedure Inliner took 70.36ms. Allocated memory is still 186.6MB. Free memory was 110.5MB in the beginning and 105.9MB in the end (delta: 4.6MB). Peak memory consumption was 5.2MB. Max. memory is 8.0GB. * Boogie Preprocessor took 117.20ms. Allocated memory is still 186.6MB. Free memory was 105.9MB in the beginning and 151.1MB in the end (delta: -45.2MB). Peak memory consumption was 7.5MB. Max. memory is 8.0GB. * RCFGBuilder took 18254.69ms. Allocated memory is still 186.6MB. Free memory was 151.1MB in the beginning and 102.9MB in the end (delta: 48.2MB). Peak memory consumption was 48.2MB. Max. memory is 8.0GB. * TraceAbstraction took 860963.32ms. Allocated memory was 186.6MB in the beginning and 278.9MB in the end (delta: 92.3MB). Free memory was 102.3MB in the beginning and 134.7MB in the end (delta: -32.4MB). Peak memory consumption was 59.9MB. 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 498 with TraceHistMax 81,while TraceCheckSpWp was constructing forward predicates,while PolyPacSimplificationTermWalker was simplifying a ∧-2-2-2-1 term,while PolyPacSimplificationTermWalker was simplifying 2 xjuncts wrt. a ∧-13-2-2-2-1 context. - StatisticsResult: Ultimate Automizer benchmark data CFG has 2 procedures, 198 locations, 1 error locations. Started 1 CEGAR loops. OverallTime: 860.9s, OverallIterations: 6, TraceHistogramMax: 81, PathProgramHistogramMax: 1, EmptinessCheckTime: 0.1s, AutomataDifference: 80.8s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 9 mSolverCounterUnknown, 2071 SdHoareTripleChecker+Valid, 72.0s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 1988 mSDsluCounter, 4728 SdHoareTripleChecker+Invalid, 70.3s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 3136 mSDsCounter, 1470 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 3865 IncrementalHoareTripleChecker+Invalid, 5344 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 1470 mSolverCounterUnsat, 1592 mSDtfsCounter, 3865 mSolverCounterSat, 0.1s SdHoareTripleChecker+Time, 9 IncrementalHoareTripleChecker+Unknown, PredicateUnifierStatistics: 0 DeclaredPredicates, 4950 GetRequests, 4846 SyntacticMatches, 1 SemanticMatches, 103 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1461 ImplicationChecksByTransitivity, 10.9s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=905occurred in iteration=5, InterpolantAutomatonStates: 74, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: 0.5s AutomataMinimizationTime, 5 MinimizatonAttempts, 1868 StatesRemovedByMinimization, 4 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.3s SsaConstructionTime, 9.1s SatisfiabilityAnalysisTime, 22.1s InterpolantComputationTime, 3473 NumberOfCodeBlocks, 3473 NumberOfCodeBlocksAsserted, 7 NumberOfCheckSat, 4457 ConstructedInterpolants, 14 QuantifiedInterpolants, 13288 SizeOfPredicates, 28 NumberOfNonLiveVariables, 5528 ConjunctsInSsa, 47 ConjunctsInUnsatCore, 9 InterpolantComputations, 3 PerfectInterpolantSequences, 115923/116640 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