/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_normal_file-29.i -------------------------------------------------------------------------------- This is Ultimate 0.2.4-tmp.fs.bitabs-eval-d9c3e40-m [2023-12-16 10:36:06,399 INFO L188 SettingsManager]: Resetting all preferences to default values... [2023-12-16 10:36:06,565 INFO L114 SettingsManager]: Loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/settings/default/automizer/svcomp-Reach-32bit-Automizer_Bitvector.epf [2023-12-16 10:36:06,571 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2023-12-16 10:36:06,572 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2023-12-16 10:36:06,589 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2023-12-16 10:36:06,589 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2023-12-16 10:36:06,590 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2023-12-16 10:36:06,590 INFO L151 SettingsManager]: Preferences of Boogie Preprocessor differ from their defaults: [2023-12-16 10:36:06,590 INFO L153 SettingsManager]: * Use memory slicer=true [2023-12-16 10:36:06,591 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2023-12-16 10:36:06,591 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2023-12-16 10:36:06,592 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2023-12-16 10:36:06,592 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2023-12-16 10:36:06,592 INFO L153 SettingsManager]: * Use SBE=true [2023-12-16 10:36:06,593 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2023-12-16 10:36:06,593 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2023-12-16 10:36:06,593 INFO L153 SettingsManager]: * sizeof long=4 [2023-12-16 10:36:06,593 INFO L153 SettingsManager]: * sizeof POINTER=4 [2023-12-16 10:36:06,594 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2023-12-16 10:36:06,594 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2023-12-16 10:36:06,595 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2023-12-16 10:36:06,595 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2023-12-16 10:36:06,596 INFO L153 SettingsManager]: * Adapt memory model on pointer casts if necessary=true [2023-12-16 10:36:06,596 INFO L153 SettingsManager]: * Use bitvectors instead of ints=true [2023-12-16 10:36:06,596 INFO L153 SettingsManager]: * Allow undefined functions=false [2023-12-16 10:36:06,596 INFO L153 SettingsManager]: * Memory model=HoenickeLindenmann_4ByteResolution [2023-12-16 10:36:06,596 INFO L153 SettingsManager]: * sizeof long double=12 [2023-12-16 10:36:06,597 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2023-12-16 10:36:06,597 INFO L153 SettingsManager]: * Use constant arrays=true [2023-12-16 10:36:06,597 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2023-12-16 10:36:06,597 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2023-12-16 10:36:06,598 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2023-12-16 10:36:06,598 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2023-12-16 10:36:06,598 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2023-12-16 10:36:06,598 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2023-12-16 10:36:06,598 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2023-12-16 10:36:06,599 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2023-12-16 10:36:06,599 INFO L153 SettingsManager]: * Trace refinement strategy=WOLF [2023-12-16 10:36:06,599 INFO L153 SettingsManager]: * Command for external solver=cvc4 --incremental --print-success --lang smt [2023-12-16 10:36:06,599 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2023-12-16 10:36:06,601 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2023-12-16 10:36:06,601 INFO L153 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2023-12-16 10:36:06,601 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2023-12-16 10:36:06,601 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2023-12-16 10:36:06,601 INFO L153 SettingsManager]: * Logic for external solver=AUFBV [2023-12-16 10:36:06,601 INFO L153 SettingsManager]: * Looper check in Petri net analysis=SEMANTIC WARNING: An illegal reflective access operation has occurred WARNING: Illegal reflective access by com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 (file:/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/plugins/com.sun.xml.bind_2.2.0.v201505121915.jar) to method java.lang.ClassLoader.defineClass(java.lang.String,byte[],int,int) WARNING: Please consider reporting this to the maintainers of com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release [2023-12-16 10:36:06,810 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2023-12-16 10:36:06,830 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2023-12-16 10:36:06,832 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2023-12-16 10:36:06,833 INFO L270 PluginConnector]: Initializing CDTParser... [2023-12-16 10:36:06,833 INFO L274 PluginConnector]: CDTParser initialized [2023-12-16 10:36:06,835 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/hardness-nfm22/hardness_fillercode_fillercodesize_normal_file-29.i [2023-12-16 10:36:08,021 INFO L533 CDTParser]: Created temporary CDT project at NULL [2023-12-16 10:36:08,252 INFO L384 CDTParser]: Found 1 translation units. [2023-12-16 10:36:08,253 INFO L180 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/hardness-nfm22/hardness_fillercode_fillercodesize_normal_file-29.i [2023-12-16 10:36:08,260 INFO L427 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/26f55d1b2/bacbfd4edb9f48d484e27139a87c0c34/FLAGd993220a7 [2023-12-16 10:36:08,275 INFO L435 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/26f55d1b2/bacbfd4edb9f48d484e27139a87c0c34 [2023-12-16 10:36:08,278 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2023-12-16 10:36:08,279 INFO L133 ToolchainWalker]: Walking toolchain with 5 elements. [2023-12-16 10:36:08,280 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2023-12-16 10:36:08,280 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2023-12-16 10:36:08,287 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2023-12-16 10:36:08,288 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 16.12 10:36:08" (1/1) ... [2023-12-16 10:36:08,289 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@1a2eae20 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.12 10:36:08, skipping insertion in model container [2023-12-16 10:36:08,289 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 16.12 10:36:08" (1/1) ... [2023-12-16 10:36:08,319 INFO L177 MainTranslator]: Built tables and reachable declarations [2023-12-16 10:36:08,447 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_normal_file-29.i[913,926] [2023-12-16 10:36:08,489 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-12-16 10:36:08,504 INFO L202 MainTranslator]: Completed pre-run [2023-12-16 10:36:08,516 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_normal_file-29.i[913,926] [2023-12-16 10:36:08,549 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-12-16 10:36:08,565 INFO L206 MainTranslator]: Completed translation [2023-12-16 10:36:08,566 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.12 10:36:08 WrapperNode [2023-12-16 10:36:08,566 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2023-12-16 10:36:08,567 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2023-12-16 10:36:08,567 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2023-12-16 10:36:08,567 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2023-12-16 10:36:08,573 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.12 10:36:08" (1/1) ... [2023-12-16 10:36:08,583 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.12 10:36:08" (1/1) ... [2023-12-16 10:36:08,608 INFO L138 Inliner]: procedures = 27, calls = 41, calls flagged for inlining = 8, calls inlined = 8, statements flattened = 152 [2023-12-16 10:36:08,609 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2023-12-16 10:36:08,610 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2023-12-16 10:36:08,610 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2023-12-16 10:36:08,610 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2023-12-16 10:36:08,620 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.12 10:36:08" (1/1) ... [2023-12-16 10:36:08,620 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.12 10:36:08" (1/1) ... [2023-12-16 10:36:08,624 INFO L184 PluginConnector]: Executing the observer MemorySlicer from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.12 10:36:08" (1/1) ... [2023-12-16 10:36:08,635 INFO L175 MemorySlicer]: Split 2 memory accesses to 1 slices as follows [2]. 100 percent of accesses are in the largest equivalence class. The 2 initializations are split as follows [2]. The 0 writes are split as follows [0]. [2023-12-16 10:36:08,636 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.12 10:36:08" (1/1) ... [2023-12-16 10:36:08,636 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.12 10:36:08" (1/1) ... [2023-12-16 10:36:08,654 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.12 10:36:08" (1/1) ... [2023-12-16 10:36:08,663 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.12 10:36:08" (1/1) ... [2023-12-16 10:36:08,669 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.12 10:36:08" (1/1) ... [2023-12-16 10:36:08,671 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.12 10:36:08" (1/1) ... [2023-12-16 10:36:08,674 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2023-12-16 10:36:08,675 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2023-12-16 10:36:08,675 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2023-12-16 10:36:08,675 INFO L274 PluginConnector]: RCFGBuilder initialized [2023-12-16 10:36:08,676 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.12 10:36:08" (1/1) ... [2023-12-16 10:36:08,681 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2023-12-16 10:36:08,699 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-12-16 10:36:08,713 INFO L229 MonitoredProcess]: Starting monitored process 1 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (exit command is (exit), workingDir is null) [2023-12-16 10:36:08,716 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (1)] Waiting until timeout for monitored process [2023-12-16 10:36:08,733 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2023-12-16 10:36:08,733 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE1#0 [2023-12-16 10:36:08,734 INFO L130 BoogieDeclarations]: Found specification of procedure assume_abort_if_not [2023-12-16 10:36:08,734 INFO L138 BoogieDeclarations]: Found implementation of procedure assume_abort_if_not [2023-12-16 10:36:08,734 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2023-12-16 10:36:08,734 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2023-12-16 10:36:08,795 INFO L241 CfgBuilder]: Building ICFG [2023-12-16 10:36:08,796 INFO L267 CfgBuilder]: Building CFG for each procedure with an implementation [2023-12-16 10:36:10,766 INFO L282 CfgBuilder]: Performing block encoding [2023-12-16 10:36:10,806 INFO L304 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2023-12-16 10:36:10,806 INFO L309 CfgBuilder]: Removed 1 assume(true) statements. [2023-12-16 10:36:10,807 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 16.12 10:36:10 BoogieIcfgContainer [2023-12-16 10:36:10,807 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2023-12-16 10:36:10,809 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2023-12-16 10:36:10,825 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2023-12-16 10:36:10,828 INFO L274 PluginConnector]: TraceAbstraction initialized [2023-12-16 10:36:10,829 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 16.12 10:36:08" (1/3) ... [2023-12-16 10:36:10,829 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@346ecf7a and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 16.12 10:36:10, skipping insertion in model container [2023-12-16 10:36:10,830 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.12 10:36:08" (2/3) ... [2023-12-16 10:36:10,830 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@346ecf7a and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 16.12 10:36:10, skipping insertion in model container [2023-12-16 10:36:10,830 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 16.12 10:36:10" (3/3) ... [2023-12-16 10:36:10,831 INFO L112 eAbstractionObserver]: Analyzing ICFG hardness_fillercode_fillercodesize_normal_file-29.i [2023-12-16 10:36:10,846 INFO L204 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2023-12-16 10:36:10,846 INFO L163 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2023-12-16 10:36:10,880 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2023-12-16 10:36:10,886 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;@11d7421b, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2023-12-16 10:36:10,886 INFO L358 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2023-12-16 10:36:10,891 INFO L276 IsEmpty]: Start isEmpty. Operand has 66 states, 35 states have (on average 1.4285714285714286) internal successors, (50), 36 states have internal predecessors, (50), 28 states have call successors, (28), 1 states have call predecessors, (28), 1 states have return successors, (28), 28 states have call predecessors, (28), 28 states have call successors, (28) [2023-12-16 10:36:10,920 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 167 [2023-12-16 10:36:10,920 INFO L187 NwaCegarLoop]: Found error trace [2023-12-16 10:36:10,921 INFO L195 NwaCegarLoop]: trace histogram [28, 28, 28, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-16 10:36:10,921 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-16 10:36:10,925 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-16 10:36:10,925 INFO L85 PathProgramCache]: Analyzing trace with hash 916860293, now seen corresponding path program 1 times [2023-12-16 10:36:10,936 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-12-16 10:36:10,937 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [194122555] [2023-12-16 10:36:10,937 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-16 10:36:10,937 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2023-12-16 10:36:10,937 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2023-12-16 10:36:10,944 INFO L229 MonitoredProcess]: Starting monitored process 2 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2023-12-16 10:36:10,947 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (2)] Waiting until timeout for monitored process [2023-12-16 10:36:11,265 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 10:36:11,284 INFO L262 TraceCheckSpWp]: Trace formula consists of 265 conjuncts, 4 conjunts are in the unsatisfiable core [2023-12-16 10:36:11,295 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-16 10:36:11,560 INFO L134 CoverageAnalysis]: Checked inductivity of 1512 backedges. 441 proven. 12 refuted. 0 times theorem prover too weak. 1059 trivial. 0 not checked. [2023-12-16 10:36:11,561 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-12-16 10:36:11,633 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-12-16 10:36:11,633 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [194122555] [2023-12-16 10:36:11,634 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [194122555] provided 0 perfect and 1 imperfect interpolant sequences [2023-12-16 10:36:11,635 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleCvc4 [1646374428] [2023-12-16 10:36:11,635 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-16 10:36:11,635 INFO L173 SolverBuilder]: Constructing external solver with command: cvc4 --incremental --print-success --lang smt [2023-12-16 10:36:11,635 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/cvc4 [2023-12-16 10:36:11,670 INFO L229 MonitoredProcess]: Starting monitored process 3 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/cvc4 --incremental --print-success --lang smt (exit command is (exit), workingDir is null) [2023-12-16 10:36:11,673 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/cvc4 --incremental --print-success --lang smt (3)] Waiting until timeout for monitored process [2023-12-16 10:36:11,977 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 10:36:11,985 INFO L262 TraceCheckSpWp]: Trace formula consists of 265 conjuncts, 2 conjunts are in the unsatisfiable core [2023-12-16 10:36:11,991 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-16 10:36:12,525 INFO L134 CoverageAnalysis]: Checked inductivity of 1512 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 1512 trivial. 0 not checked. [2023-12-16 10:36:12,526 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-12-16 10:36:12,526 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleCvc4 [1646374428] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-16 10:36:12,526 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2023-12-16 10:36:12,527 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [5] total 6 [2023-12-16 10:36:12,529 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1498945034] [2023-12-16 10:36:12,529 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-16 10:36:12,533 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-12-16 10:36:12,534 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-12-16 10:36:12,557 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-12-16 10:36:12,558 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=30, Unknown=0, NotChecked=0, Total=42 [2023-12-16 10:36:12,560 INFO L87 Difference]: Start difference. First operand has 66 states, 35 states have (on average 1.4285714285714286) internal successors, (50), 36 states have internal predecessors, (50), 28 states have call successors, (28), 1 states have call predecessors, (28), 1 states have return successors, (28), 28 states have call predecessors, (28), 28 states have call successors, (28) Second operand has 3 states, 3 states have (on average 9.666666666666666) internal successors, (29), 2 states have internal predecessors, (29), 1 states have call successors, (28), 1 states have call predecessors, (28), 1 states have return successors, (28), 1 states have call predecessors, (28), 1 states have call successors, (28) [2023-12-16 10:36:14,230 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.60s for a HTC check with result INVALID. Formula has sorts [Bool, FloatingPoint, RoundingMode, Real, BitVec], hasArrays=false, hasNonlinArith=false, quantifiers [] [2023-12-16 10:36:14,296 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-16 10:36:14,296 INFO L93 Difference]: Finished difference Result 192 states and 370 transitions. [2023-12-16 10:36:14,298 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-12-16 10:36:14,299 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 9.666666666666666) internal successors, (29), 2 states have internal predecessors, (29), 1 states have call successors, (28), 1 states have call predecessors, (28), 1 states have return successors, (28), 1 states have call predecessors, (28), 1 states have call successors, (28) Word has length 166 [2023-12-16 10:36:14,300 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-16 10:36:14,317 INFO L225 Difference]: With dead ends: 192 [2023-12-16 10:36:14,318 INFO L226 Difference]: Without dead ends: 127 [2023-12-16 10:36:14,321 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 341 GetRequests, 336 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=12, Invalid=30, Unknown=0, NotChecked=0, Total=42 [2023-12-16 10:36:14,324 INFO L413 NwaCegarLoop]: 97 mSDtfsCounter, 19 mSDsluCounter, 95 mSDsCounter, 0 mSdLazyCounter, 8 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 19 SdHoareTripleChecker+Valid, 192 SdHoareTripleChecker+Invalid, 9 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 8 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.7s IncrementalHoareTripleChecker+Time [2023-12-16 10:36:14,325 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [19 Valid, 192 Invalid, 9 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 8 Invalid, 0 Unknown, 0 Unchecked, 1.7s Time] [2023-12-16 10:36:14,339 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 127 states. [2023-12-16 10:36:14,398 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 127 to 125. [2023-12-16 10:36:14,401 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 125 states, 66 states have (on average 1.3181818181818181) internal successors, (87), 66 states have internal predecessors, (87), 56 states have call successors, (56), 2 states have call predecessors, (56), 2 states have return successors, (56), 56 states have call predecessors, (56), 56 states have call successors, (56) [2023-12-16 10:36:14,409 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 125 states to 125 states and 199 transitions. [2023-12-16 10:36:14,411 INFO L78 Accepts]: Start accepts. Automaton has 125 states and 199 transitions. Word has length 166 [2023-12-16 10:36:14,413 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-16 10:36:14,413 INFO L495 AbstractCegarLoop]: Abstraction has 125 states and 199 transitions. [2023-12-16 10:36:14,415 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 9.666666666666666) internal successors, (29), 2 states have internal predecessors, (29), 1 states have call successors, (28), 1 states have call predecessors, (28), 1 states have return successors, (28), 1 states have call predecessors, (28), 1 states have call successors, (28) [2023-12-16 10:36:14,415 INFO L276 IsEmpty]: Start isEmpty. Operand 125 states and 199 transitions. [2023-12-16 10:36:14,427 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 167 [2023-12-16 10:36:14,428 INFO L187 NwaCegarLoop]: Found error trace [2023-12-16 10:36:14,428 INFO L195 NwaCegarLoop]: trace histogram [28, 28, 28, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-16 10:36:14,441 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (2)] Forceful destruction successful, exit code 0 [2023-12-16 10:36:14,642 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/cvc4 --incremental --print-success --lang smt (3)] Forceful destruction successful, exit code 0 [2023-12-16 10:36:14,840 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=3,3 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/cvc4 --incremental --print-success --lang smt [2023-12-16 10:36:14,840 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-16 10:36:14,841 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-16 10:36:14,842 INFO L85 PathProgramCache]: Analyzing trace with hash 918707335, now seen corresponding path program 1 times [2023-12-16 10:36:14,842 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-12-16 10:36:14,843 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1417838302] [2023-12-16 10:36:14,843 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-16 10:36:14,844 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2023-12-16 10:36:14,844 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2023-12-16 10:36:14,845 INFO L229 MonitoredProcess]: Starting monitored process 4 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2023-12-16 10:36:14,858 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (4)] Waiting until timeout for monitored process [2023-12-16 10:36:15,124 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 10:36:15,135 INFO L262 TraceCheckSpWp]: Trace formula consists of 265 conjuncts, 4 conjunts are in the unsatisfiable core [2023-12-16 10:36:15,142 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-16 10:36:15,236 INFO L134 CoverageAnalysis]: Checked inductivity of 1512 backedges. 441 proven. 12 refuted. 0 times theorem prover too weak. 1059 trivial. 0 not checked. [2023-12-16 10:36:15,237 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-12-16 10:36:15,274 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-12-16 10:36:15,274 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1417838302] [2023-12-16 10:36:15,274 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1417838302] provided 0 perfect and 1 imperfect interpolant sequences [2023-12-16 10:36:15,274 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleCvc4 [233984652] [2023-12-16 10:36:15,274 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-16 10:36:15,275 INFO L173 SolverBuilder]: Constructing external solver with command: cvc4 --incremental --print-success --lang smt [2023-12-16 10:36:15,275 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/cvc4 [2023-12-16 10:36:15,281 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) [2023-12-16 10:36:15,299 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/cvc4 --incremental --print-success --lang smt (5)] Waiting until timeout for monitored process [2023-12-16 10:36:15,854 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 10:36:15,861 INFO L262 TraceCheckSpWp]: Trace formula consists of 265 conjuncts, 2 conjunts are in the unsatisfiable core [2023-12-16 10:36:15,865 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-16 10:36:15,931 INFO L134 CoverageAnalysis]: Checked inductivity of 1512 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 1512 trivial. 0 not checked. [2023-12-16 10:36:15,931 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-12-16 10:36:15,932 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleCvc4 [233984652] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-16 10:36:15,932 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2023-12-16 10:36:15,932 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [5] total 6 [2023-12-16 10:36:15,932 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [747728657] [2023-12-16 10:36:15,933 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-16 10:36:15,934 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-12-16 10:36:15,934 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-12-16 10:36:15,934 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-12-16 10:36:15,935 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=30, Unknown=0, NotChecked=0, Total=42 [2023-12-16 10:36:15,935 INFO L87 Difference]: Start difference. First operand 125 states and 199 transitions. Second operand has 3 states, 3 states have (on average 9.666666666666666) internal successors, (29), 3 states have internal predecessors, (29), 1 states have call successors, (28), 1 states have call predecessors, (28), 1 states have return successors, (28), 1 states have call predecessors, (28), 1 states have call successors, (28) [2023-12-16 10:36:17,367 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-16 10:36:17,367 INFO L93 Difference]: Finished difference Result 371 states and 591 transitions. [2023-12-16 10:36:17,368 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-12-16 10:36:17,368 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 9.666666666666666) internal successors, (29), 3 states have internal predecessors, (29), 1 states have call successors, (28), 1 states have call predecessors, (28), 1 states have return successors, (28), 1 states have call predecessors, (28), 1 states have call successors, (28) Word has length 166 [2023-12-16 10:36:17,369 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-16 10:36:17,371 INFO L225 Difference]: With dead ends: 371 [2023-12-16 10:36:17,372 INFO L226 Difference]: Without dead ends: 247 [2023-12-16 10:36:17,373 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 341 GetRequests, 336 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=12, Invalid=30, Unknown=0, NotChecked=0, Total=42 [2023-12-16 10:36:17,374 INFO L413 NwaCegarLoop]: 177 mSDtfsCounter, 93 mSDsluCounter, 91 mSDsCounter, 0 mSdLazyCounter, 18 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 93 SdHoareTripleChecker+Valid, 268 SdHoareTripleChecker+Invalid, 19 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 18 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.4s IncrementalHoareTripleChecker+Time [2023-12-16 10:36:17,375 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [93 Valid, 268 Invalid, 19 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 18 Invalid, 0 Unknown, 0 Unchecked, 1.4s Time] [2023-12-16 10:36:17,376 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 247 states. [2023-12-16 10:36:17,416 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 247 to 245. [2023-12-16 10:36:17,417 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 245 states, 128 states have (on average 1.28125) internal successors, (164), 128 states have internal predecessors, (164), 112 states have call successors, (112), 4 states have call predecessors, (112), 4 states have return successors, (112), 112 states have call predecessors, (112), 112 states have call successors, (112) [2023-12-16 10:36:17,420 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 245 states to 245 states and 388 transitions. [2023-12-16 10:36:17,420 INFO L78 Accepts]: Start accepts. Automaton has 245 states and 388 transitions. Word has length 166 [2023-12-16 10:36:17,421 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-16 10:36:17,421 INFO L495 AbstractCegarLoop]: Abstraction has 245 states and 388 transitions. [2023-12-16 10:36:17,421 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 9.666666666666666) internal successors, (29), 3 states have internal predecessors, (29), 1 states have call successors, (28), 1 states have call predecessors, (28), 1 states have return successors, (28), 1 states have call predecessors, (28), 1 states have call successors, (28) [2023-12-16 10:36:17,421 INFO L276 IsEmpty]: Start isEmpty. Operand 245 states and 388 transitions. [2023-12-16 10:36:17,423 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 167 [2023-12-16 10:36:17,423 INFO L187 NwaCegarLoop]: Found error trace [2023-12-16 10:36:17,423 INFO L195 NwaCegarLoop]: trace histogram [28, 28, 28, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-16 10:36:17,439 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (4)] Forceful destruction successful, exit code 0 [2023-12-16 10:36:17,640 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/cvc4 --incremental --print-success --lang smt (5)] Forceful destruction successful, exit code 0 [2023-12-16 10:36:17,835 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 [2023-12-16 10:36:17,835 INFO L420 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-16 10:36:17,836 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-16 10:36:17,836 INFO L85 PathProgramCache]: Analyzing trace with hash 975965637, now seen corresponding path program 1 times [2023-12-16 10:36:17,836 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-12-16 10:36:17,837 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [935255893] [2023-12-16 10:36:17,837 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-16 10:36:17,837 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2023-12-16 10:36:17,837 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2023-12-16 10:36:17,838 INFO L229 MonitoredProcess]: Starting monitored process 6 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2023-12-16 10:36:17,839 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (6)] Waiting until timeout for monitored process [2023-12-16 10:36:18,128 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 10:36:18,145 INFO L262 TraceCheckSpWp]: Trace formula consists of 265 conjuncts, 4 conjunts are in the unsatisfiable core [2023-12-16 10:36:18,148 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-16 10:36:18,261 INFO L134 CoverageAnalysis]: Checked inductivity of 1512 backedges. 441 proven. 12 refuted. 0 times theorem prover too weak. 1059 trivial. 0 not checked. [2023-12-16 10:36:18,261 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-12-16 10:36:18,296 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-12-16 10:36:18,297 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [935255893] [2023-12-16 10:36:18,297 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [935255893] provided 0 perfect and 1 imperfect interpolant sequences [2023-12-16 10:36:18,297 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleCvc4 [1946049068] [2023-12-16 10:36:18,297 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-16 10:36:18,297 INFO L173 SolverBuilder]: Constructing external solver with command: cvc4 --incremental --print-success --lang smt [2023-12-16 10:36:18,297 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/cvc4 [2023-12-16 10:36:18,301 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) [2023-12-16 10:36:18,302 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/cvc4 --incremental --print-success --lang smt (7)] Waiting until timeout for monitored process [2023-12-16 10:36:18,902 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 10:36:18,930 INFO L262 TraceCheckSpWp]: Trace formula consists of 265 conjuncts, 6 conjunts are in the unsatisfiable core [2023-12-16 10:36:18,944 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-16 10:36:19,430 INFO L134 CoverageAnalysis]: Checked inductivity of 1512 backedges. 183 proven. 3 refuted. 0 times theorem prover too weak. 1326 trivial. 0 not checked. [2023-12-16 10:36:19,430 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-12-16 10:36:19,758 INFO L134 CoverageAnalysis]: Checked inductivity of 1512 backedges. 78 proven. 3 refuted. 0 times theorem prover too weak. 1431 trivial. 0 not checked. [2023-12-16 10:36:19,758 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleCvc4 [1946049068] provided 0 perfect and 2 imperfect interpolant sequences [2023-12-16 10:36:19,758 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2023-12-16 10:36:19,759 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [5, 6, 6] total 11 [2023-12-16 10:36:19,759 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [760744667] [2023-12-16 10:36:19,759 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2023-12-16 10:36:19,760 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 11 states [2023-12-16 10:36:19,760 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-12-16 10:36:19,761 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2023-12-16 10:36:19,761 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=32, Invalid=100, Unknown=0, NotChecked=0, Total=132 [2023-12-16 10:36:19,761 INFO L87 Difference]: Start difference. First operand 245 states and 388 transitions. Second operand has 11 states, 11 states have (on average 4.818181818181818) internal successors, (53), 11 states have internal predecessors, (53), 4 states have call successors, (33), 3 states have call predecessors, (33), 5 states have return successors, (35), 4 states have call predecessors, (35), 4 states have call successors, (35) [2023-12-16 10:36:26,657 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.08s for a HTC check with result INVALID. Formula has sorts [Bool, FloatingPoint, RoundingMode, Real, BitVec], hasArrays=false, hasNonlinArith=false, quantifiers [0] [2023-12-16 10:36:30,990 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-16 10:36:30,990 INFO L93 Difference]: Finished difference Result 679 states and 1030 transitions. [2023-12-16 10:36:30,991 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 32 states. [2023-12-16 10:36:30,991 INFO L78 Accepts]: Start accepts. Automaton has has 11 states, 11 states have (on average 4.818181818181818) internal successors, (53), 11 states have internal predecessors, (53), 4 states have call successors, (33), 3 states have call predecessors, (33), 5 states have return successors, (35), 4 states have call predecessors, (35), 4 states have call successors, (35) Word has length 166 [2023-12-16 10:36:30,992 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-16 10:36:30,995 INFO L225 Difference]: With dead ends: 679 [2023-12-16 10:36:30,995 INFO L226 Difference]: Without dead ends: 435 [2023-12-16 10:36:30,997 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 537 GetRequests, 499 SyntacticMatches, 0 SemanticMatches, 38 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 388 ImplicationChecksByTransitivity, 2.5s TimeCoverageRelationStatistics Valid=417, Invalid=1143, Unknown=0, NotChecked=0, Total=1560 [2023-12-16 10:36:30,998 INFO L413 NwaCegarLoop]: 85 mSDtfsCounter, 408 mSDsluCounter, 199 mSDsCounter, 0 mSdLazyCounter, 308 mSolverCounterSat, 688 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 8.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 409 SdHoareTripleChecker+Valid, 284 SdHoareTripleChecker+Invalid, 996 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 688 IncrementalHoareTripleChecker+Valid, 308 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 8.9s IncrementalHoareTripleChecker+Time [2023-12-16 10:36:30,998 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [409 Valid, 284 Invalid, 996 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [688 Valid, 308 Invalid, 0 Unknown, 0 Unchecked, 8.9s Time] [2023-12-16 10:36:30,999 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 435 states. [2023-12-16 10:36:31,041 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 435 to 281. [2023-12-16 10:36:31,042 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 281 states, 156 states have (on average 1.2179487179487178) internal successors, (190), 156 states have internal predecessors, (190), 112 states have call successors, (112), 12 states have call predecessors, (112), 12 states have return successors, (112), 112 states have call predecessors, (112), 112 states have call successors, (112) [2023-12-16 10:36:31,044 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 281 states to 281 states and 414 transitions. [2023-12-16 10:36:31,045 INFO L78 Accepts]: Start accepts. Automaton has 281 states and 414 transitions. Word has length 166 [2023-12-16 10:36:31,045 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-16 10:36:31,045 INFO L495 AbstractCegarLoop]: Abstraction has 281 states and 414 transitions. [2023-12-16 10:36:31,046 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 11 states, 11 states have (on average 4.818181818181818) internal successors, (53), 11 states have internal predecessors, (53), 4 states have call successors, (33), 3 states have call predecessors, (33), 5 states have return successors, (35), 4 states have call predecessors, (35), 4 states have call successors, (35) [2023-12-16 10:36:31,046 INFO L276 IsEmpty]: Start isEmpty. Operand 281 states and 414 transitions. [2023-12-16 10:36:31,047 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 168 [2023-12-16 10:36:31,047 INFO L187 NwaCegarLoop]: Found error trace [2023-12-16 10:36:31,047 INFO L195 NwaCegarLoop]: trace histogram [28, 28, 28, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-16 10:36:31,055 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/cvc4 --incremental --print-success --lang smt (7)] Forceful destruction successful, exit code 0 [2023-12-16 10:36:31,264 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (6)] Forceful destruction successful, exit code 0 [2023-12-16 10:36:31,455 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 [2023-12-16 10:36:31,456 INFO L420 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-16 10:36:31,456 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-16 10:36:31,457 INFO L85 PathProgramCache]: Analyzing trace with hash 1011440318, now seen corresponding path program 1 times [2023-12-16 10:36:31,457 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-12-16 10:36:31,457 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1226776057] [2023-12-16 10:36:31,457 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-16 10:36:31,457 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2023-12-16 10:36:31,457 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2023-12-16 10:36:31,458 INFO L229 MonitoredProcess]: Starting monitored process 8 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2023-12-16 10:36:31,459 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (8)] Waiting until timeout for monitored process [2023-12-16 10:36:31,718 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 10:36:31,730 INFO L262 TraceCheckSpWp]: Trace formula consists of 266 conjuncts, 12 conjunts are in the unsatisfiable core [2023-12-16 10:36:31,733 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-16 10:36:44,408 WARN L876 $PredicateComparison]: unable to prove that (let ((.cse1 ((_ to_fp 8 24) roundNearestTiesToEven 4611686018427382800.0)) (.cse0 ((_ to_fp 8 24) roundNearestTiesToEven (/ 1.0 100000000000000000000.0)))) (let ((.cse3 (fp.neg .cse0)) (.cse2 (fp.neg .cse1))) (let ((.cse4 (exists ((~var_1_26~0 (_ FloatingPoint 8 24))) (and (fp.leq ~var_1_26~0 .cse3) (fp.geq ~var_1_26~0 .cse2))))) (or (exists ((~var_1_25~0 (_ FloatingPoint 8 24))) (and (fp.geq ~var_1_25~0 .cse0) (fp.leq ~var_1_25~0 .cse1) (exists ((~var_1_24~0 (_ FloatingPoint 8 24))) (and (fp.geq ~var_1_24~0 .cse0) (= (fp.add roundNearestTiesToEven ~var_1_24~0 ~var_1_25~0) c_~var_1_23~0) (fp.leq ~var_1_24~0 .cse1))) (exists ((~var_1_26~0 (_ FloatingPoint 8 24))) (and (fp.geq ~var_1_26~0 .cse0) (fp.gt ~var_1_25~0 ~var_1_26~0))))) (exists ((~var_1_25~0 (_ FloatingPoint 8 24))) (and (fp.geq ~var_1_25~0 .cse2) (exists ((~var_1_24~0 (_ FloatingPoint 8 24))) (and (exists ((~var_1_26~0 (_ FloatingPoint 8 24))) (and (fp.leq ~var_1_26~0 .cse3) (not (fp.gt ~var_1_25~0 ~var_1_26~0)) (= c_~var_1_23~0 (fp.add roundNearestTiesToEven ~var_1_24~0 ~var_1_26~0)))) (fp.leq ~var_1_24~0 .cse3) (fp.geq ~var_1_24~0 .cse2))) (fp.leq ~var_1_25~0 .cse3))) (exists ((~var_1_25~0 (_ FloatingPoint 8 24))) (and (exists ((~var_1_24~0 (_ FloatingPoint 8 24))) (and (fp.geq ~var_1_24~0 .cse0) (= (fp.add roundNearestTiesToEven ~var_1_24~0 ~var_1_25~0) c_~var_1_23~0) (fp.leq ~var_1_24~0 .cse1))) (fp.geq ~var_1_25~0 .cse2) (exists ((~var_1_26~0 (_ FloatingPoint 8 24))) (and (fp.geq ~var_1_26~0 .cse2) (fp.gt ~var_1_25~0 ~var_1_26~0))) (fp.leq ~var_1_25~0 .cse3))) (exists ((~var_1_25~0 (_ FloatingPoint 8 24))) (and (fp.geq ~var_1_25~0 .cse0) (exists ((~var_1_24~0 (_ FloatingPoint 8 24))) (and (fp.geq ~var_1_24~0 .cse0) (exists ((~var_1_26~0 (_ FloatingPoint 8 24))) (and (fp.leq ~var_1_26~0 .cse1) (not (fp.gt ~var_1_25~0 ~var_1_26~0)) (= c_~var_1_23~0 (fp.add roundNearestTiesToEven ~var_1_24~0 ~var_1_26~0)))) (fp.leq ~var_1_24~0 .cse1))) (fp.leq ~var_1_25~0 .cse1))) (exists ((~var_1_25~0 (_ FloatingPoint 8 24))) (and (fp.geq ~var_1_25~0 .cse0) (fp.leq ~var_1_25~0 .cse1) (exists ((~var_1_24~0 (_ FloatingPoint 8 24))) (and (= (fp.add roundNearestTiesToEven ~var_1_24~0 ~var_1_25~0) c_~var_1_23~0) (fp.leq ~var_1_24~0 .cse3) (fp.geq ~var_1_24~0 .cse2))) .cse4)) (exists ((~var_1_25~0 (_ FloatingPoint 8 24))) (and (fp.geq ~var_1_25~0 .cse2) (fp.leq ~var_1_25~0 .cse3) (exists ((~var_1_24~0 (_ FloatingPoint 8 24))) (and (exists ((~var_1_26~0 (_ FloatingPoint 8 24))) (and (fp.leq ~var_1_26~0 .cse1) (fp.geq ~var_1_26~0 .cse0) (= c_~var_1_23~0 (fp.add roundNearestTiesToEven ~var_1_24~0 ~var_1_26~0)))) (fp.leq ~var_1_24~0 .cse3) (fp.geq ~var_1_24~0 .cse2))))) (exists ((~var_1_25~0 (_ FloatingPoint 8 24))) (and (fp.geq ~var_1_25~0 .cse2) (exists ((~var_1_26~0 (_ FloatingPoint 8 24))) (and (fp.geq ~var_1_26~0 .cse2) (fp.gt ~var_1_25~0 ~var_1_26~0))) (exists ((~var_1_24~0 (_ FloatingPoint 8 24))) (and (= (fp.add roundNearestTiesToEven ~var_1_24~0 ~var_1_25~0) c_~var_1_23~0) (fp.leq ~var_1_24~0 .cse3) (fp.geq ~var_1_24~0 .cse2))) (fp.leq ~var_1_25~0 .cse3))) (exists ((~var_1_25~0 (_ FloatingPoint 8 24))) (and (fp.geq ~var_1_25~0 .cse0) (fp.leq ~var_1_25~0 .cse1) (exists ((~var_1_24~0 (_ FloatingPoint 8 24))) (and (= (fp.add roundNearestTiesToEven ~var_1_24~0 ~var_1_25~0) c_~var_1_23~0) (fp.leq ~var_1_24~0 .cse3) (fp.geq ~var_1_24~0 .cse2))) (exists ((~var_1_26~0 (_ FloatingPoint 8 24))) (and (fp.geq ~var_1_26~0 .cse0) (fp.gt ~var_1_25~0 ~var_1_26~0))))) (exists ((~var_1_25~0 (_ FloatingPoint 8 24))) (and (fp.geq ~var_1_25~0 .cse2) (exists ((~var_1_24~0 (_ FloatingPoint 8 24))) (and (exists ((~var_1_26~0 (_ FloatingPoint 8 24))) (and (fp.leq ~var_1_26~0 .cse3) (not (fp.gt ~var_1_25~0 ~var_1_26~0)) (= c_~var_1_23~0 (fp.add roundNearestTiesToEven ~var_1_24~0 ~var_1_26~0)))) (fp.geq ~var_1_24~0 .cse0) (fp.leq ~var_1_24~0 .cse1))) (fp.leq ~var_1_25~0 .cse3))) (exists ((~var_1_25~0 (_ FloatingPoint 8 24))) (and (fp.geq ~var_1_25~0 .cse0) (fp.leq ~var_1_25~0 .cse1) (exists ((~var_1_24~0 (_ FloatingPoint 8 24))) (and (exists ((~var_1_26~0 (_ FloatingPoint 8 24))) (and (fp.leq ~var_1_26~0 .cse1) (not (fp.gt ~var_1_25~0 ~var_1_26~0)) (= c_~var_1_23~0 (fp.add roundNearestTiesToEven ~var_1_24~0 ~var_1_26~0)))) (fp.leq ~var_1_24~0 .cse3) (fp.geq ~var_1_24~0 .cse2))))) (exists ((~var_1_25~0 (_ FloatingPoint 8 24))) (and (fp.geq ~var_1_25~0 .cse0) (fp.leq ~var_1_25~0 .cse1) (exists ((~var_1_24~0 (_ FloatingPoint 8 24))) (and (fp.geq ~var_1_24~0 .cse0) (= (fp.add roundNearestTiesToEven ~var_1_24~0 ~var_1_25~0) c_~var_1_23~0) (fp.leq ~var_1_24~0 .cse1))) .cse4)) (exists ((~var_1_25~0 (_ FloatingPoint 8 24))) (and (fp.geq ~var_1_25~0 .cse2) (exists ((~var_1_24~0 (_ FloatingPoint 8 24))) (and (exists ((~var_1_26~0 (_ FloatingPoint 8 24))) (and (fp.leq ~var_1_26~0 .cse1) (fp.geq ~var_1_26~0 .cse0) (= c_~var_1_23~0 (fp.add roundNearestTiesToEven ~var_1_24~0 ~var_1_26~0)))) (fp.geq ~var_1_24~0 .cse0) (fp.leq ~var_1_24~0 .cse1))) (fp.leq ~var_1_25~0 .cse3))))))) is different from true Received shutdown request... [2023-12-16 10:37:20,210 WARN L340 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (8)] Timeout while monitored process is still running, waiting 1000 ms for graceful end [2023-12-16 10:37:20,251 WARN L340 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (1)] Timeout while monitored process is still running, waiting 1000 ms for graceful end [2023-12-16 10:37:20,524 INFO L805 garLoopResultBuilder]: Registering result TIMEOUT for location ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION (0 of 1 remaining) [2023-12-16 10:37:20,533 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (8)] Forceful destruction successful, exit code 0 [2023-12-16 10:37:20,725 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 8 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2023-12-16 10:37:20,725 WARN L619 AbstractCegarLoop]: Verification canceled: while NwaCegarLoop was analyzing trace of length 168 with TraceHistMax 28,while TraceCheckSpWp was constructing forward predicates,while PredicateComparison was comparing new predicate (quantified with 0quantifier alternations) to 13 known predicates. [2023-12-16 10:37:20,729 INFO L445 BasicCegarLoop]: Path program histogram: [1, 1, 1, 1] [2023-12-16 10:37:20,732 INFO L179 ceAbstractionStarter]: Computing trace abstraction results [2023-12-16 10:37:20,734 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 16.12 10:37:20 BoogieIcfgContainer [2023-12-16 10:37:20,734 INFO L131 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2023-12-16 10:37:20,734 INFO L158 Benchmark]: Toolchain (without parser) took 72455.73ms. Allocated memory was 197.1MB in the beginning and 265.3MB in the end (delta: 68.2MB). Free memory was 153.4MB in the beginning and 103.4MB in the end (delta: 50.0MB). Peak memory consumption was 119.1MB. Max. memory is 8.0GB. [2023-12-16 10:37:20,735 INFO L158 Benchmark]: CDTParser took 0.16ms. Allocated memory is still 197.1MB. Free memory is still 154.0MB. There was no memory consumed. Max. memory is 8.0GB. [2023-12-16 10:37:20,735 INFO L158 Benchmark]: CACSL2BoogieTranslator took 286.14ms. Allocated memory is still 197.1MB. Free memory was 153.4MB in the beginning and 138.7MB in the end (delta: 14.7MB). Peak memory consumption was 14.7MB. Max. memory is 8.0GB. [2023-12-16 10:37:20,735 INFO L158 Benchmark]: Boogie Procedure Inliner took 42.05ms. Allocated memory is still 197.1MB. Free memory was 138.7MB in the beginning and 136.3MB in the end (delta: 2.4MB). Peak memory consumption was 2.1MB. Max. memory is 8.0GB. [2023-12-16 10:37:20,736 INFO L158 Benchmark]: Boogie Preprocessor took 64.38ms. Allocated memory is still 197.1MB. Free memory was 136.3MB in the beginning and 133.1MB in the end (delta: 3.1MB). Peak memory consumption was 3.1MB. Max. memory is 8.0GB. [2023-12-16 10:37:20,736 INFO L158 Benchmark]: RCFGBuilder took 2132.37ms. Allocated memory is still 197.1MB. Free memory was 133.1MB in the beginning and 111.4MB in the end (delta: 21.7MB). Peak memory consumption was 22.0MB. Max. memory is 8.0GB. [2023-12-16 10:37:20,736 INFO L158 Benchmark]: TraceAbstraction took 69924.90ms. Allocated memory was 197.1MB in the beginning and 265.3MB in the end (delta: 68.2MB). Free memory was 111.1MB in the beginning and 103.4MB in the end (delta: 7.7MB). Peak memory consumption was 77.2MB. Max. memory is 8.0GB. [2023-12-16 10:37:20,738 INFO L338 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.16ms. Allocated memory is still 197.1MB. Free memory is still 154.0MB. There was no memory consumed. Max. memory is 8.0GB. * CACSL2BoogieTranslator took 286.14ms. Allocated memory is still 197.1MB. Free memory was 153.4MB in the beginning and 138.7MB in the end (delta: 14.7MB). Peak memory consumption was 14.7MB. Max. memory is 8.0GB. * Boogie Procedure Inliner took 42.05ms. Allocated memory is still 197.1MB. Free memory was 138.7MB in the beginning and 136.3MB in the end (delta: 2.4MB). Peak memory consumption was 2.1MB. Max. memory is 8.0GB. * Boogie Preprocessor took 64.38ms. Allocated memory is still 197.1MB. Free memory was 136.3MB in the beginning and 133.1MB in the end (delta: 3.1MB). Peak memory consumption was 3.1MB. Max. memory is 8.0GB. * RCFGBuilder took 2132.37ms. Allocated memory is still 197.1MB. Free memory was 133.1MB in the beginning and 111.4MB in the end (delta: 21.7MB). Peak memory consumption was 22.0MB. Max. memory is 8.0GB. * TraceAbstraction took 69924.90ms. Allocated memory was 197.1MB in the beginning and 265.3MB in the end (delta: 68.2MB). Free memory was 111.1MB in the beginning and 103.4MB in the end (delta: 7.7MB). Peak memory consumption was 77.2MB. 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 168 with TraceHistMax 28,while TraceCheckSpWp was constructing forward predicates,while PredicateComparison was comparing new predicate (quantified with 0quantifier alternations) to 13 known predicates. - StatisticsResult: Ultimate Automizer benchmark data CFG has 2 procedures, 66 locations, 1 error locations. Started 1 CEGAR loops. OverallTime: 69.9s, OverallIterations: 4, TraceHistogramMax: 28, PathProgramHistogramMax: 1, EmptinessCheckTime: 0.0s, AutomataDifference: 14.5s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 521 SdHoareTripleChecker+Valid, 12.0s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 520 mSDsluCounter, 744 SdHoareTripleChecker+Invalid, 11.4s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 385 mSDsCounter, 690 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 334 IncrementalHoareTripleChecker+Invalid, 1024 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 690 mSolverCounterUnsat, 359 mSDtfsCounter, 334 mSolverCounterSat, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown, PredicateUnifierStatistics: 0 DeclaredPredicates, 1219 GetRequests, 1171 SyntacticMatches, 0 SemanticMatches, 48 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 390 ImplicationChecksByTransitivity, 2.6s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=281occurred in iteration=3, InterpolantAutomatonStates: 38, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: 0.2s AutomataMinimizationTime, 3 MinimizatonAttempts, 158 StatesRemovedByMinimization, 3 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.1s SsaConstructionTime, 2.0s SatisfiabilityAnalysisTime, 2.2s InterpolantComputationTime, 996 NumberOfCodeBlocks, 996 NumberOfCodeBlocksAsserted, 6 NumberOfCheckSat, 1155 ConstructedInterpolants, 10 QuantifiedInterpolants, 2033 SizeOfPredicates, 18 NumberOfNonLiveVariables, 1590 ConjunctsInSsa, 22 ConjunctsInUnsatCore, 7 InterpolantComputations, 2 PerfectInterpolantSequences, 10542/10584 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