/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_loopvsstraightlinecode_100-while_file-59.i -------------------------------------------------------------------------------- This is Ultimate 0.2.4-tmp.fs.bitabs-eval-d9c3e40-m [2023-12-23 23:10:29,863 INFO L188 SettingsManager]: Resetting all preferences to default values... [2023-12-23 23:10:29,925 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 23:10:29,930 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2023-12-23 23:10:29,930 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2023-12-23 23:10:29,950 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2023-12-23 23:10:29,950 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2023-12-23 23:10:29,950 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2023-12-23 23:10:29,951 INFO L151 SettingsManager]: Preferences of Boogie Preprocessor differ from their defaults: [2023-12-23 23:10:29,954 INFO L153 SettingsManager]: * Use memory slicer=true [2023-12-23 23:10:29,954 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2023-12-23 23:10:29,954 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2023-12-23 23:10:29,955 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2023-12-23 23:10:29,955 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2023-12-23 23:10:29,956 INFO L153 SettingsManager]: * Use SBE=true [2023-12-23 23:10:29,956 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2023-12-23 23:10:29,956 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2023-12-23 23:10:29,956 INFO L153 SettingsManager]: * sizeof long=4 [2023-12-23 23:10:29,956 INFO L153 SettingsManager]: * sizeof POINTER=4 [2023-12-23 23:10:29,957 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2023-12-23 23:10:29,957 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2023-12-23 23:10:29,957 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2023-12-23 23:10:29,957 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2023-12-23 23:10:29,957 INFO L153 SettingsManager]: * Adapt memory model on pointer casts if necessary=true [2023-12-23 23:10:29,957 INFO L153 SettingsManager]: * Use bitvectors instead of ints=true [2023-12-23 23:10:29,958 INFO L153 SettingsManager]: * Allow undefined functions=false [2023-12-23 23:10:29,958 INFO L153 SettingsManager]: * Memory model=HoenickeLindenmann_4ByteResolution [2023-12-23 23:10:29,958 INFO L153 SettingsManager]: * sizeof long double=12 [2023-12-23 23:10:29,958 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2023-12-23 23:10:29,958 INFO L153 SettingsManager]: * Use constant arrays=true [2023-12-23 23:10:29,959 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2023-12-23 23:10:29,959 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2023-12-23 23:10:29,959 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2023-12-23 23:10:29,959 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2023-12-23 23:10:29,959 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2023-12-23 23:10:29,959 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2023-12-23 23:10:29,959 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2023-12-23 23:10:29,959 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2023-12-23 23:10:29,960 INFO L153 SettingsManager]: * Trace refinement strategy=WOLF [2023-12-23 23:10:29,960 INFO L153 SettingsManager]: * Command for external solver=cvc4 --incremental --print-success --lang smt [2023-12-23 23:10:29,960 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2023-12-23 23:10:29,960 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2023-12-23 23:10:29,960 INFO L153 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2023-12-23 23:10:29,960 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2023-12-23 23:10:29,960 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2023-12-23 23:10:29,961 INFO L153 SettingsManager]: * Logic for external solver=AUFBV [2023-12-23 23:10:29,961 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release [2023-12-23 23:10:30,140 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2023-12-23 23:10:30,156 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2023-12-23 23:10:30,157 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2023-12-23 23:10:30,158 INFO L270 PluginConnector]: Initializing CDTParser... [2023-12-23 23:10:30,158 INFO L274 PluginConnector]: CDTParser initialized [2023-12-23 23:10:30,158 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/hardness-nfm22/hardness_loopvsstraightlinecode_100-while_file-59.i [2023-12-23 23:10:31,173 INFO L533 CDTParser]: Created temporary CDT project at NULL [2023-12-23 23:10:31,318 INFO L384 CDTParser]: Found 1 translation units. [2023-12-23 23:10:31,319 INFO L180 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/hardness-nfm22/hardness_loopvsstraightlinecode_100-while_file-59.i [2023-12-23 23:10:31,328 INFO L427 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/076615cf4/a24e8001ad084a04b48d811b4d93912a/FLAGad13d544b [2023-12-23 23:10:31,338 INFO L435 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/076615cf4/a24e8001ad084a04b48d811b4d93912a [2023-12-23 23:10:31,344 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2023-12-23 23:10:31,345 INFO L133 ToolchainWalker]: Walking toolchain with 5 elements. [2023-12-23 23:10:31,345 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2023-12-23 23:10:31,346 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2023-12-23 23:10:31,349 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2023-12-23 23:10:31,350 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 23.12 11:10:31" (1/1) ... [2023-12-23 23:10:31,353 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@4400147a and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.12 11:10:31, skipping insertion in model container [2023-12-23 23:10:31,353 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 23.12 11:10:31" (1/1) ... [2023-12-23 23:10:31,382 INFO L177 MainTranslator]: Built tables and reachable declarations [2023-12-23 23:10:31,471 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_loopvsstraightlinecode_100-while_file-59.i[916,929] [2023-12-23 23:10:31,517 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-12-23 23:10:31,527 INFO L202 MainTranslator]: Completed pre-run [2023-12-23 23:10:31,537 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_loopvsstraightlinecode_100-while_file-59.i[916,929] [2023-12-23 23:10:31,563 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-12-23 23:10:31,579 INFO L206 MainTranslator]: Completed translation [2023-12-23 23:10:31,579 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.12 11:10:31 WrapperNode [2023-12-23 23:10:31,579 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2023-12-23 23:10:31,580 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2023-12-23 23:10:31,580 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2023-12-23 23:10:31,580 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2023-12-23 23:10:31,585 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.12 11:10:31" (1/1) ... [2023-12-23 23:10:31,593 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.12 11:10:31" (1/1) ... [2023-12-23 23:10:31,634 INFO L138 Inliner]: procedures = 27, calls = 34, calls flagged for inlining = 8, calls inlined = 8, statements flattened = 165 [2023-12-23 23:10:31,634 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2023-12-23 23:10:31,635 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2023-12-23 23:10:31,635 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2023-12-23 23:10:31,635 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2023-12-23 23:10:31,642 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.12 11:10:31" (1/1) ... [2023-12-23 23:10:31,642 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.12 11:10:31" (1/1) ... [2023-12-23 23:10:31,656 INFO L184 PluginConnector]: Executing the observer MemorySlicer from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.12 11:10:31" (1/1) ... [2023-12-23 23:10:31,670 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 23:10:31,670 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.12 11:10:31" (1/1) ... [2023-12-23 23:10:31,671 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.12 11:10:31" (1/1) ... [2023-12-23 23:10:31,678 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.12 11:10:31" (1/1) ... [2023-12-23 23:10:31,685 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.12 11:10:31" (1/1) ... [2023-12-23 23:10:31,687 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.12 11:10:31" (1/1) ... [2023-12-23 23:10:31,688 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.12 11:10:31" (1/1) ... [2023-12-23 23:10:31,691 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2023-12-23 23:10:31,708 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2023-12-23 23:10:31,708 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2023-12-23 23:10:31,709 INFO L274 PluginConnector]: RCFGBuilder initialized [2023-12-23 23:10:31,709 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.12 11:10:31" (1/1) ... [2023-12-23 23:10:31,713 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2023-12-23 23:10:31,720 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-12-23 23:10:31,732 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 23:10:31,753 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 23:10:31,763 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2023-12-23 23:10:31,763 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE1#0 [2023-12-23 23:10:31,763 INFO L130 BoogieDeclarations]: Found specification of procedure assume_abort_if_not [2023-12-23 23:10:31,765 INFO L138 BoogieDeclarations]: Found implementation of procedure assume_abort_if_not [2023-12-23 23:10:31,765 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2023-12-23 23:10:31,765 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2023-12-23 23:10:31,850 INFO L241 CfgBuilder]: Building ICFG [2023-12-23 23:10:31,852 INFO L267 CfgBuilder]: Building CFG for each procedure with an implementation [2023-12-23 23:10:43,692 INFO L282 CfgBuilder]: Performing block encoding [2023-12-23 23:10:43,723 INFO L304 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2023-12-23 23:10:43,723 INFO L309 CfgBuilder]: Removed 1 assume(true) statements. [2023-12-23 23:10:43,724 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 23.12 11:10:43 BoogieIcfgContainer [2023-12-23 23:10:43,724 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2023-12-23 23:10:43,725 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2023-12-23 23:10:43,725 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2023-12-23 23:10:43,727 INFO L274 PluginConnector]: TraceAbstraction initialized [2023-12-23 23:10:43,727 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 23.12 11:10:31" (1/3) ... [2023-12-23 23:10:43,731 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@3051ed64 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 23.12 11:10:43, skipping insertion in model container [2023-12-23 23:10:43,731 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.12 11:10:31" (2/3) ... [2023-12-23 23:10:43,732 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@3051ed64 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 23.12 11:10:43, skipping insertion in model container [2023-12-23 23:10:43,732 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 23.12 11:10:43" (3/3) ... [2023-12-23 23:10:43,733 INFO L112 eAbstractionObserver]: Analyzing ICFG hardness_loopvsstraightlinecode_100-while_file-59.i [2023-12-23 23:10:43,747 INFO L204 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2023-12-23 23:10:43,748 INFO L163 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2023-12-23 23:10:43,796 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2023-12-23 23:10:43,800 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;@2f1e5646, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2023-12-23 23:10:43,801 INFO L358 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2023-12-23 23:10:43,804 INFO L276 IsEmpty]: Start isEmpty. Operand has 69 states, 45 states have (on average 1.5555555555555556) internal successors, (70), 46 states have internal predecessors, (70), 21 states have call successors, (21), 1 states have call predecessors, (21), 1 states have return successors, (21), 21 states have call predecessors, (21), 21 states have call successors, (21) [2023-12-23 23:10:43,813 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 137 [2023-12-23 23:10:43,814 INFO L187 NwaCegarLoop]: Found error trace [2023-12-23 23:10:43,814 INFO L195 NwaCegarLoop]: trace histogram [21, 21, 21, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 23:10:43,815 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-23 23:10:43,818 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-23 23:10:43,819 INFO L85 PathProgramCache]: Analyzing trace with hash 231606935, now seen corresponding path program 1 times [2023-12-23 23:10:43,829 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-12-23 23:10:43,829 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [556369489] [2023-12-23 23:10:43,829 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-23 23:10:43,830 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 23:10:43,830 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2023-12-23 23:10:43,835 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 23:10:43,835 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 23:10:44,215 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-23 23:10:44,230 INFO L262 TraceCheckSpWp]: Trace formula consists of 233 conjuncts, 1 conjunts are in the unsatisfiable core [2023-12-23 23:10:44,237 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-23 23:10:44,269 INFO L134 CoverageAnalysis]: Checked inductivity of 840 backedges. 424 proven. 0 refuted. 0 times theorem prover too weak. 416 trivial. 0 not checked. [2023-12-23 23:10:44,269 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-12-23 23:10:44,270 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-12-23 23:10:44,270 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [556369489] [2023-12-23 23:10:44,270 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [556369489] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-23 23:10:44,270 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-23 23:10:44,271 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2023-12-23 23:10:44,274 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [332922736] [2023-12-23 23:10:44,275 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-23 23:10:44,279 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2023-12-23 23:10:44,279 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-12-23 23:10:44,306 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2023-12-23 23:10:44,306 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2023-12-23 23:10:44,308 INFO L87 Difference]: Start difference. First operand has 69 states, 45 states have (on average 1.5555555555555556) internal successors, (70), 46 states have internal predecessors, (70), 21 states have call successors, (21), 1 states have call predecessors, (21), 1 states have return successors, (21), 21 states have call predecessors, (21), 21 states have call successors, (21) Second operand has 2 states, 2 states have (on average 19.0) internal successors, (38), 2 states have internal predecessors, (38), 2 states have call successors, (21), 2 states have call predecessors, (21), 2 states have return successors, (21), 2 states have call predecessors, (21), 2 states have call successors, (21) [2023-12-23 23:10:48,464 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.12s for a HTC check with result UNKNOWN. Formula has sorts [Bool, FloatingPoint, RoundingMode, Real, BitVec], hasArrays=false, hasNonlinArith=false, quantifiers [] [2023-12-23 23:10:48,464 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-23 23:10:48,465 INFO L93 Difference]: Finished difference Result 135 states and 243 transitions. [2023-12-23 23:10:48,506 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2023-12-23 23:10:48,508 INFO L78 Accepts]: Start accepts. Automaton has has 2 states, 2 states have (on average 19.0) internal successors, (38), 2 states have internal predecessors, (38), 2 states have call successors, (21), 2 states have call predecessors, (21), 2 states have return successors, (21), 2 states have call predecessors, (21), 2 states have call successors, (21) Word has length 136 [2023-12-23 23:10:48,508 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-23 23:10:48,513 INFO L225 Difference]: With dead ends: 135 [2023-12-23 23:10:48,513 INFO L226 Difference]: Without dead ends: 67 [2023-12-23 23:10:48,515 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 135 GetRequests, 135 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 23:10:48,517 INFO L413 NwaCegarLoop]: 104 mSDtfsCounter, 0 mSDsluCounter, 0 mSDsCounter, 0 mSdLazyCounter, 2 mSolverCounterSat, 0 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 4.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 104 SdHoareTripleChecker+Invalid, 3 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 2 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 4.1s IncrementalHoareTripleChecker+Time [2023-12-23 23:10:48,518 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 104 Invalid, 3 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 2 Invalid, 1 Unknown, 0 Unchecked, 4.1s Time] [2023-12-23 23:10:48,528 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 67 states. [2023-12-23 23:10:48,543 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 67 to 67. [2023-12-23 23:10:48,545 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 67 states, 44 states have (on average 1.4772727272727273) internal successors, (65), 44 states have internal predecessors, (65), 21 states have call successors, (21), 1 states have call predecessors, (21), 1 states have return successors, (21), 21 states have call predecessors, (21), 21 states have call successors, (21) [2023-12-23 23:10:48,546 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 67 states to 67 states and 107 transitions. [2023-12-23 23:10:48,547 INFO L78 Accepts]: Start accepts. Automaton has 67 states and 107 transitions. Word has length 136 [2023-12-23 23:10:48,547 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-23 23:10:48,547 INFO L495 AbstractCegarLoop]: Abstraction has 67 states and 107 transitions. [2023-12-23 23:10:48,547 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 2 states, 2 states have (on average 19.0) internal successors, (38), 2 states have internal predecessors, (38), 2 states have call successors, (21), 2 states have call predecessors, (21), 2 states have return successors, (21), 2 states have call predecessors, (21), 2 states have call successors, (21) [2023-12-23 23:10:48,548 INFO L276 IsEmpty]: Start isEmpty. Operand 67 states and 107 transitions. [2023-12-23 23:10:48,551 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 137 [2023-12-23 23:10:48,551 INFO L187 NwaCegarLoop]: Found error trace [2023-12-23 23:10:48,551 INFO L195 NwaCegarLoop]: trace histogram [21, 21, 21, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 23:10:48,561 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 23:10:48,760 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 23:10:48,761 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-23 23:10:48,761 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-23 23:10:48,762 INFO L85 PathProgramCache]: Analyzing trace with hash -2109323375, now seen corresponding path program 1 times [2023-12-23 23:10:48,762 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-12-23 23:10:48,762 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [169285758] [2023-12-23 23:10:48,762 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-23 23:10:48,763 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 23:10:48,763 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2023-12-23 23:10:48,764 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 23:10:48,769 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 23:10:49,069 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-23 23:10:49,083 INFO L262 TraceCheckSpWp]: Trace formula consists of 233 conjuncts, 2 conjunts are in the unsatisfiable core [2023-12-23 23:10:49,088 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-23 23:10:49,150 INFO L134 CoverageAnalysis]: Checked inductivity of 840 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 840 trivial. 0 not checked. [2023-12-23 23:10:49,150 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-12-23 23:10:49,150 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-12-23 23:10:49,150 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [169285758] [2023-12-23 23:10:49,151 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [169285758] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-23 23:10:49,151 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-23 23:10:49,151 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2023-12-23 23:10:49,151 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [629322477] [2023-12-23 23:10:49,151 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-23 23:10:49,152 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-12-23 23:10:49,152 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-12-23 23:10:49,153 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-12-23 23:10:49,153 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-12-23 23:10:49,153 INFO L87 Difference]: Start difference. First operand 67 states and 107 transitions. Second operand has 3 states, 3 states have (on average 11.333333333333334) internal successors, (34), 3 states have internal predecessors, (34), 1 states have call successors, (21), 1 states have call predecessors, (21), 1 states have return successors, (21), 1 states have call predecessors, (21), 1 states have call successors, (21) [2023-12-23 23:10:53,304 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.10s for a HTC check with result UNKNOWN. Formula has sorts [Bool, FloatingPoint, RoundingMode, Real, BitVec], hasArrays=false, hasNonlinArith=false, quantifiers [0] [2023-12-23 23:10:56,148 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.84s for a HTC check with result INVALID. Formula has sorts [Bool, FloatingPoint, RoundingMode, Real, BitVec], hasArrays=false, hasNonlinArith=false, quantifiers [0] [2023-12-23 23:10:56,151 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-23 23:10:56,151 INFO L93 Difference]: Finished difference Result 133 states and 213 transitions. [2023-12-23 23:10:56,190 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-12-23 23:10:56,190 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 11.333333333333334) internal successors, (34), 3 states have internal predecessors, (34), 1 states have call successors, (21), 1 states have call predecessors, (21), 1 states have return successors, (21), 1 states have call predecessors, (21), 1 states have call successors, (21) Word has length 136 [2023-12-23 23:10:56,191 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-23 23:10:56,192 INFO L225 Difference]: With dead ends: 133 [2023-12-23 23:10:56,192 INFO L226 Difference]: Without dead ends: 67 [2023-12-23 23:10:56,193 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 135 GetRequests, 134 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-12-23 23:10:56,194 INFO L413 NwaCegarLoop]: 102 mSDtfsCounter, 24 mSDsluCounter, 77 mSDsCounter, 0 mSdLazyCounter, 7 mSolverCounterSat, 0 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 7.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 24 SdHoareTripleChecker+Valid, 179 SdHoareTripleChecker+Invalid, 8 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 7 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 7.0s IncrementalHoareTripleChecker+Time [2023-12-23 23:10:56,194 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [24 Valid, 179 Invalid, 8 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 7 Invalid, 1 Unknown, 0 Unchecked, 7.0s Time] [2023-12-23 23:10:56,194 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 67 states. [2023-12-23 23:10:56,200 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 67 to 67. [2023-12-23 23:10:56,200 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 67 states, 44 states have (on average 1.4545454545454546) internal successors, (64), 44 states have internal predecessors, (64), 21 states have call successors, (21), 1 states have call predecessors, (21), 1 states have return successors, (21), 21 states have call predecessors, (21), 21 states have call successors, (21) [2023-12-23 23:10:56,201 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 67 states to 67 states and 106 transitions. [2023-12-23 23:10:56,201 INFO L78 Accepts]: Start accepts. Automaton has 67 states and 106 transitions. Word has length 136 [2023-12-23 23:10:56,202 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-23 23:10:56,202 INFO L495 AbstractCegarLoop]: Abstraction has 67 states and 106 transitions. [2023-12-23 23:10:56,203 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 11.333333333333334) internal successors, (34), 3 states have internal predecessors, (34), 1 states have call successors, (21), 1 states have call predecessors, (21), 1 states have return successors, (21), 1 states have call predecessors, (21), 1 states have call successors, (21) [2023-12-23 23:10:56,203 INFO L276 IsEmpty]: Start isEmpty. Operand 67 states and 106 transitions. [2023-12-23 23:10:56,204 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 138 [2023-12-23 23:10:56,204 INFO L187 NwaCegarLoop]: Found error trace [2023-12-23 23:10:56,205 INFO L195 NwaCegarLoop]: trace histogram [21, 21, 21, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 23:10:56,224 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 23:10:56,413 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 23:10:56,414 INFO L420 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-23 23:10:56,415 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-23 23:10:56,415 INFO L85 PathProgramCache]: Analyzing trace with hash -899973457, now seen corresponding path program 1 times [2023-12-23 23:10:56,415 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-12-23 23:10:56,415 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [608340695] [2023-12-23 23:10:56,416 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-23 23:10:56,416 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 23:10:56,416 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2023-12-23 23:10:56,417 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 23:10:56,421 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 23:10:56,729 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-23 23:10:56,743 INFO L262 TraceCheckSpWp]: Trace formula consists of 233 conjuncts, 5 conjunts are in the unsatisfiable core [2023-12-23 23:10:56,746 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-23 23:10:56,952 INFO L134 CoverageAnalysis]: Checked inductivity of 840 backedges. 60 proven. 0 refuted. 0 times theorem prover too weak. 780 trivial. 0 not checked. [2023-12-23 23:10:56,952 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-12-23 23:10:56,952 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-12-23 23:10:56,952 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [608340695] [2023-12-23 23:10:56,953 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [608340695] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-23 23:10:56,953 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-23 23:10:56,953 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2023-12-23 23:10:56,953 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1422998091] [2023-12-23 23:10:56,953 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-23 23:10:56,953 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2023-12-23 23:10:56,954 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-12-23 23:10:56,954 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2023-12-23 23:10:56,954 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2023-12-23 23:10:56,954 INFO L87 Difference]: Start difference. First operand 67 states and 106 transitions. Second operand has 6 states, 6 states have (on average 6.333333333333333) internal successors, (38), 6 states have internal predecessors, (38), 1 states have call successors, (21), 1 states have call predecessors, (21), 2 states have return successors, (21), 2 states have call predecessors, (21), 1 states have call successors, (21) [2023-12-23 23:11:01,488 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 3.85s for a HTC check with result INVALID. Formula has sorts [Bool, FloatingPoint, RoundingMode, Real, BitVec], hasArrays=false, hasNonlinArith=false, quantifiers [] [2023-12-23 23:11:01,595 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-23 23:11:01,595 INFO L93 Difference]: Finished difference Result 140 states and 216 transitions. [2023-12-23 23:11:01,635 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2023-12-23 23:11:01,635 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 6.333333333333333) internal successors, (38), 6 states have internal predecessors, (38), 1 states have call successors, (21), 1 states have call predecessors, (21), 2 states have return successors, (21), 2 states have call predecessors, (21), 1 states have call successors, (21) Word has length 137 [2023-12-23 23:11:01,636 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-23 23:11:01,637 INFO L225 Difference]: With dead ends: 140 [2023-12-23 23:11:01,637 INFO L226 Difference]: Without dead ends: 74 [2023-12-23 23:11:01,638 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 144 GetRequests, 133 SyntacticMatches, 0 SemanticMatches, 11 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 17 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=54, Invalid=102, Unknown=0, NotChecked=0, Total=156 [2023-12-23 23:11:01,638 INFO L413 NwaCegarLoop]: 63 mSDtfsCounter, 109 mSDsluCounter, 81 mSDsCounter, 0 mSdLazyCounter, 147 mSolverCounterSat, 88 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 4.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 111 SdHoareTripleChecker+Valid, 144 SdHoareTripleChecker+Invalid, 235 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 88 IncrementalHoareTripleChecker+Valid, 147 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 4.4s IncrementalHoareTripleChecker+Time [2023-12-23 23:11:01,639 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [111 Valid, 144 Invalid, 235 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [88 Valid, 147 Invalid, 0 Unknown, 0 Unchecked, 4.4s Time] [2023-12-23 23:11:01,640 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 74 states. [2023-12-23 23:11:01,648 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 74 to 70. [2023-12-23 23:11:01,648 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 70 states, 46 states have (on average 1.2608695652173914) internal successors, (58), 46 states have internal predecessors, (58), 21 states have call successors, (21), 2 states have call predecessors, (21), 2 states have return successors, (21), 21 states have call predecessors, (21), 21 states have call successors, (21) [2023-12-23 23:11:01,649 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 70 states to 70 states and 100 transitions. [2023-12-23 23:11:01,649 INFO L78 Accepts]: Start accepts. Automaton has 70 states and 100 transitions. Word has length 137 [2023-12-23 23:11:01,649 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-23 23:11:01,649 INFO L495 AbstractCegarLoop]: Abstraction has 70 states and 100 transitions. [2023-12-23 23:11:01,650 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 6.333333333333333) internal successors, (38), 6 states have internal predecessors, (38), 1 states have call successors, (21), 1 states have call predecessors, (21), 2 states have return successors, (21), 2 states have call predecessors, (21), 1 states have call successors, (21) [2023-12-23 23:11:01,650 INFO L276 IsEmpty]: Start isEmpty. Operand 70 states and 100 transitions. [2023-12-23 23:11:01,651 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 139 [2023-12-23 23:11:01,651 INFO L187 NwaCegarLoop]: Found error trace [2023-12-23 23:11:01,651 INFO L195 NwaCegarLoop]: trace histogram [21, 21, 21, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 23:11:01,666 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 23:11:01,862 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 4 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2023-12-23 23:11:01,863 INFO L420 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-23 23:11:01,865 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-23 23:11:01,866 INFO L85 PathProgramCache]: Analyzing trace with hash 1498892420, now seen corresponding path program 1 times [2023-12-23 23:11:01,866 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-12-23 23:11:01,866 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [247372607] [2023-12-23 23:11:01,866 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-23 23:11:01,867 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 23:11:01,867 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2023-12-23 23:11:01,868 INFO L229 MonitoredProcess]: Starting monitored process 5 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2023-12-23 23:11:01,898 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (5)] Waiting until timeout for monitored process [2023-12-23 23:11:02,185 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-23 23:11:02,201 INFO L262 TraceCheckSpWp]: Trace formula consists of 233 conjuncts, 9 conjunts are in the unsatisfiable core [2023-12-23 23:11:02,205 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-23 23:11:03,712 INFO L134 CoverageAnalysis]: Checked inductivity of 840 backedges. 182 proven. 108 refuted. 0 times theorem prover too weak. 550 trivial. 0 not checked. [2023-12-23 23:11:03,712 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-12-23 23:11:04,259 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-12-23 23:11:04,259 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [247372607] [2023-12-23 23:11:04,259 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [247372607] provided 0 perfect and 1 imperfect interpolant sequences [2023-12-23 23:11:04,259 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleCvc4 [1120707583] [2023-12-23 23:11:04,260 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-23 23:11:04,260 INFO L173 SolverBuilder]: Constructing external solver with command: cvc4 --incremental --print-success --lang smt [2023-12-23 23:11:04,260 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/cvc4 [2023-12-23 23:11:04,262 INFO L229 MonitoredProcess]: Starting monitored process 6 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/cvc4 --incremental --print-success --lang smt (exit command is (exit), workingDir is null) [2023-12-23 23:11:04,291 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/cvc4 --incremental --print-success --lang smt (6)] Waiting until timeout for monitored process [2023-12-23 23:11:05,053 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-23 23:11:05,062 INFO L262 TraceCheckSpWp]: Trace formula consists of 233 conjuncts, 10 conjunts are in the unsatisfiable core [2023-12-23 23:11:05,065 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-23 23:11:06,261 INFO L134 CoverageAnalysis]: Checked inductivity of 840 backedges. 182 proven. 108 refuted. 0 times theorem prover too weak. 550 trivial. 0 not checked. [2023-12-23 23:11:06,262 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-12-23 23:11:06,559 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleCvc4 [1120707583] provided 0 perfect and 1 imperfect interpolant sequences [2023-12-23 23:11:06,559 INFO L185 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2023-12-23 23:11:06,559 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [10, 10] total 10 [2023-12-23 23:11:06,559 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [889540693] [2023-12-23 23:11:06,559 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2023-12-23 23:11:06,560 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2023-12-23 23:11:06,560 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-12-23 23:11:06,560 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2023-12-23 23:11:06,561 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=39, Invalid=143, Unknown=0, NotChecked=0, Total=182 [2023-12-23 23:11:06,561 INFO L87 Difference]: Start difference. First operand 70 states and 100 transitions. Second operand has 10 states, 10 states have (on average 4.5) internal successors, (45), 10 states have internal predecessors, (45), 3 states have call successors, (21), 3 states have call predecessors, (21), 4 states have return successors, (21), 2 states have call predecessors, (21), 3 states have call successors, (21) [2023-12-23 23:11:12,751 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.10s for a HTC check with result UNKNOWN. Formula has sorts [Bool, FloatingPoint, RoundingMode, Real, BitVec], hasArrays=false, hasNonlinArith=false, quantifiers [] [2023-12-23 23:11:16,755 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.00s for a HTC check with result UNKNOWN. Formula has sorts [Bool, FloatingPoint, RoundingMode, Real, BitVec], hasArrays=false, hasNonlinArith=false, quantifiers [] [2023-12-23 23:11:19,836 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 3.08s for a HTC check with result INVALID. Formula has sorts [Bool, FloatingPoint, RoundingMode, Real, BitVec], hasArrays=false, hasNonlinArith=false, quantifiers [] [2023-12-23 23:11:23,705 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 3.39s for a HTC check with result INVALID. Formula has sorts [Bool, FloatingPoint, RoundingMode, Real, BitVec], hasArrays=false, hasNonlinArith=false, quantifiers [0] [2023-12-23 23:11:24,138 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-23 23:11:24,138 INFO L93 Difference]: Finished difference Result 180 states and 248 transitions. [2023-12-23 23:11:24,138 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2023-12-23 23:11:24,139 INFO L78 Accepts]: Start accepts. Automaton has has 10 states, 10 states have (on average 4.5) internal successors, (45), 10 states have internal predecessors, (45), 3 states have call successors, (21), 3 states have call predecessors, (21), 4 states have return successors, (21), 2 states have call predecessors, (21), 3 states have call successors, (21) Word has length 138 [2023-12-23 23:11:24,139 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-23 23:11:24,140 INFO L225 Difference]: With dead ends: 180 [2023-12-23 23:11:24,140 INFO L226 Difference]: Without dead ends: 111 [2023-12-23 23:11:24,140 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 513 GetRequests, 494 SyntacticMatches, 0 SemanticMatches, 19 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 59 ImplicationChecksByTransitivity, 0.8s TimeCoverageRelationStatistics Valid=101, Invalid=319, Unknown=0, NotChecked=0, Total=420 [2023-12-23 23:11:24,141 INFO L413 NwaCegarLoop]: 69 mSDtfsCounter, 111 mSDsluCounter, 219 mSDsCounter, 0 mSdLazyCounter, 454 mSolverCounterSat, 9 mSolverCounterUnsat, 2 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 17.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 111 SdHoareTripleChecker+Valid, 288 SdHoareTripleChecker+Invalid, 465 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 9 IncrementalHoareTripleChecker+Valid, 454 IncrementalHoareTripleChecker+Invalid, 2 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 17.2s IncrementalHoareTripleChecker+Time [2023-12-23 23:11:24,141 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [111 Valid, 288 Invalid, 465 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [9 Valid, 454 Invalid, 2 Unknown, 0 Unchecked, 17.2s Time] [2023-12-23 23:11:24,142 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 111 states. [2023-12-23 23:11:24,149 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 111 to 82. [2023-12-23 23:11:24,149 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 82 states, 56 states have (on average 1.2321428571428572) internal successors, (69), 56 states have internal predecessors, (69), 21 states have call successors, (21), 4 states have call predecessors, (21), 4 states have return successors, (21), 21 states have call predecessors, (21), 21 states have call successors, (21) [2023-12-23 23:11:24,150 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 82 states to 82 states and 111 transitions. [2023-12-23 23:11:24,150 INFO L78 Accepts]: Start accepts. Automaton has 82 states and 111 transitions. Word has length 138 [2023-12-23 23:11:24,150 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-23 23:11:24,150 INFO L495 AbstractCegarLoop]: Abstraction has 82 states and 111 transitions. [2023-12-23 23:11:24,150 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 10 states have (on average 4.5) internal successors, (45), 10 states have internal predecessors, (45), 3 states have call successors, (21), 3 states have call predecessors, (21), 4 states have return successors, (21), 2 states have call predecessors, (21), 3 states have call successors, (21) [2023-12-23 23:11:24,150 INFO L276 IsEmpty]: Start isEmpty. Operand 82 states and 111 transitions. [2023-12-23 23:11:24,152 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 139 [2023-12-23 23:11:24,152 INFO L187 NwaCegarLoop]: Found error trace [2023-12-23 23:11:24,152 INFO L195 NwaCegarLoop]: trace histogram [21, 21, 21, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 23:11:24,161 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (5)] Forceful destruction successful, exit code 0 [2023-12-23 23:11:24,370 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/cvc4 --incremental --print-success --lang smt (6)] Forceful destruction successful, exit code 0 [2023-12-23 23:11:24,561 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 5 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3,6 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/cvc4 --incremental --print-success --lang smt [2023-12-23 23:11:24,562 INFO L420 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-23 23:11:24,562 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-23 23:11:24,562 INFO L85 PathProgramCache]: Analyzing trace with hash -190051322, now seen corresponding path program 1 times [2023-12-23 23:11:24,562 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-12-23 23:11:24,562 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1930578967] [2023-12-23 23:11:24,563 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-23 23:11:24,563 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 23:11:24,563 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2023-12-23 23:11:24,564 INFO L229 MonitoredProcess]: Starting monitored process 7 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2023-12-23 23:11:24,564 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (7)] Waiting until timeout for monitored process [2023-12-23 23:11:24,840 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-23 23:11:24,854 INFO L262 TraceCheckSpWp]: Trace formula consists of 233 conjuncts, 3 conjunts are in the unsatisfiable core [2023-12-23 23:11:24,856 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-23 23:11:25,445 INFO L134 CoverageAnalysis]: Checked inductivity of 840 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 840 trivial. 0 not checked. [2023-12-23 23:11:25,446 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-12-23 23:11:25,446 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-12-23 23:11:25,446 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1930578967] [2023-12-23 23:11:25,446 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1930578967] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-23 23:11:25,446 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-23 23:11:25,446 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2023-12-23 23:11:25,446 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1538531884] [2023-12-23 23:11:25,446 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-23 23:11:25,447 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2023-12-23 23:11:25,447 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-12-23 23:11:25,447 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2023-12-23 23:11:25,447 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2023-12-23 23:11:25,448 INFO L87 Difference]: Start difference. First operand 82 states and 111 transitions. Second operand has 4 states, 4 states have (on average 9.0) internal successors, (36), 3 states have internal predecessors, (36), 1 states have call successors, (21), 1 states have call predecessors, (21), 1 states have return successors, (21), 1 states have call predecessors, (21), 1 states have call successors, (21) [2023-12-23 23:11:29,656 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.11s for a HTC check with result UNKNOWN. Formula has sorts [Bool, FloatingPoint, RoundingMode, Real, BitVec], hasArrays=false, hasNonlinArith=false, quantifiers [] [2023-12-23 23:11:33,416 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 3.76s for a HTC check with result INVALID. Formula has sorts [Bool, FloatingPoint, RoundingMode, Real, BitVec], hasArrays=false, hasNonlinArith=false, quantifiers [] [2023-12-23 23:11:37,595 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.11s for a HTC check with result UNKNOWN. Formula has sorts [Bool, FloatingPoint, RoundingMode, Real, BitVec], hasArrays=false, hasNonlinArith=false, quantifiers [] [2023-12-23 23:11:41,584 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 3.99s for a HTC check with result INVALID. Formula has sorts [Bool, FloatingPoint, RoundingMode, Real, BitVec], hasArrays=false, hasNonlinArith=false, quantifiers [] [2023-12-23 23:11:45,817 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.11s for a HTC check with result UNKNOWN. Formula has sorts [Bool, FloatingPoint, RoundingMode, Real, BitVec], hasArrays=false, hasNonlinArith=false, quantifiers [] [2023-12-23 23:11:45,818 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-23 23:11:45,818 INFO L93 Difference]: Finished difference Result 261 states and 353 transitions. [2023-12-23 23:11:45,866 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2023-12-23 23:11:45,867 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 9.0) internal successors, (36), 3 states have internal predecessors, (36), 1 states have call successors, (21), 1 states have call predecessors, (21), 1 states have return successors, (21), 1 states have call predecessors, (21), 1 states have call successors, (21) Word has length 138 [2023-12-23 23:11:45,867 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-23 23:11:45,868 INFO L225 Difference]: With dead ends: 261 [2023-12-23 23:11:45,868 INFO L226 Difference]: Without dead ends: 180 [2023-12-23 23:11:45,869 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 138 GetRequests, 135 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2023-12-23 23:11:45,870 INFO L413 NwaCegarLoop]: 91 mSDtfsCounter, 114 mSDsluCounter, 181 mSDsCounter, 0 mSdLazyCounter, 16 mSolverCounterSat, 43 mSolverCounterUnsat, 3 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 20.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 114 SdHoareTripleChecker+Valid, 272 SdHoareTripleChecker+Invalid, 62 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 43 IncrementalHoareTripleChecker+Valid, 16 IncrementalHoareTripleChecker+Invalid, 3 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 20.3s IncrementalHoareTripleChecker+Time [2023-12-23 23:11:45,870 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [114 Valid, 272 Invalid, 62 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [43 Valid, 16 Invalid, 3 Unknown, 0 Unchecked, 20.3s Time] [2023-12-23 23:11:45,870 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 180 states. [2023-12-23 23:11:45,885 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 180 to 157. [2023-12-23 23:11:45,885 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 157 states, 106 states have (on average 1.2169811320754718) internal successors, (129), 106 states have internal predecessors, (129), 42 states have call successors, (42), 8 states have call predecessors, (42), 8 states have return successors, (42), 42 states have call predecessors, (42), 42 states have call successors, (42) [2023-12-23 23:11:45,886 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 157 states to 157 states and 213 transitions. [2023-12-23 23:11:45,886 INFO L78 Accepts]: Start accepts. Automaton has 157 states and 213 transitions. Word has length 138 [2023-12-23 23:11:45,887 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-23 23:11:45,887 INFO L495 AbstractCegarLoop]: Abstraction has 157 states and 213 transitions. [2023-12-23 23:11:45,887 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 9.0) internal successors, (36), 3 states have internal predecessors, (36), 1 states have call successors, (21), 1 states have call predecessors, (21), 1 states have return successors, (21), 1 states have call predecessors, (21), 1 states have call successors, (21) [2023-12-23 23:11:45,887 INFO L276 IsEmpty]: Start isEmpty. Operand 157 states and 213 transitions. [2023-12-23 23:11:45,888 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 141 [2023-12-23 23:11:45,888 INFO L187 NwaCegarLoop]: Found error trace [2023-12-23 23:11:45,888 INFO L195 NwaCegarLoop]: trace histogram [21, 21, 21, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 23:11:45,898 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (7)] Forceful destruction successful, exit code 0 [2023-12-23 23:11:46,096 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 7 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2023-12-23 23:11:46,097 INFO L420 AbstractCegarLoop]: === Iteration 6 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-23 23:11:46,097 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-23 23:11:46,097 INFO L85 PathProgramCache]: Analyzing trace with hash 99652747, now seen corresponding path program 1 times [2023-12-23 23:11:46,098 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-12-23 23:11:46,098 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [427671651] [2023-12-23 23:11:46,098 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-23 23:11:46,098 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 23:11:46,098 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2023-12-23 23:11:46,099 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 23:11:46,100 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 23:11:46,400 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-23 23:11:46,414 INFO L262 TraceCheckSpWp]: Trace formula consists of 234 conjuncts, 9 conjunts are in the unsatisfiable core [2023-12-23 23:11:46,416 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-23 23:11:47,794 INFO L134 CoverageAnalysis]: Checked inductivity of 840 backedges. 182 proven. 108 refuted. 0 times theorem prover too weak. 550 trivial. 0 not checked. [2023-12-23 23:11:47,794 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-12-23 23:11:48,249 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-12-23 23:11:48,249 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [427671651] [2023-12-23 23:11:48,250 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [427671651] provided 0 perfect and 1 imperfect interpolant sequences [2023-12-23 23:11:48,250 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleCvc4 [1261623160] [2023-12-23 23:11:48,250 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-23 23:11:48,250 INFO L173 SolverBuilder]: Constructing external solver with command: cvc4 --incremental --print-success --lang smt [2023-12-23 23:11:48,250 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/cvc4 [2023-12-23 23:11:48,251 INFO L229 MonitoredProcess]: Starting monitored process 9 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/cvc4 --incremental --print-success --lang smt (exit command is (exit), workingDir is null) [2023-12-23 23:11:48,251 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/cvc4 --incremental --print-success --lang smt (9)] Waiting until timeout for monitored process [2023-12-23 23:11:49,001 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-23 23:11:49,009 INFO L262 TraceCheckSpWp]: Trace formula consists of 234 conjuncts, 10 conjunts are in the unsatisfiable core [2023-12-23 23:11:49,011 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-23 23:11:50,117 INFO L134 CoverageAnalysis]: Checked inductivity of 840 backedges. 182 proven. 108 refuted. 0 times theorem prover too weak. 550 trivial. 0 not checked. [2023-12-23 23:11:50,117 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-12-23 23:11:50,388 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleCvc4 [1261623160] provided 0 perfect and 1 imperfect interpolant sequences [2023-12-23 23:11:50,389 INFO L185 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2023-12-23 23:11:50,389 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [10, 10] total 10 [2023-12-23 23:11:50,389 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1980344379] [2023-12-23 23:11:50,389 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2023-12-23 23:11:50,389 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2023-12-23 23:11:50,389 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-12-23 23:11:50,390 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2023-12-23 23:11:50,390 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=39, Invalid=143, Unknown=0, NotChecked=0, Total=182 [2023-12-23 23:11:50,390 INFO L87 Difference]: Start difference. First operand 157 states and 213 transitions. Second operand has 10 states, 10 states have (on average 4.7) internal successors, (47), 10 states have internal predecessors, (47), 3 states have call successors, (21), 3 states have call predecessors, (21), 4 states have return successors, (21), 2 states have call predecessors, (21), 3 states have call successors, (21) [2023-12-23 23:11:54,508 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.69s for a HTC check with result INVALID. Formula has sorts [Bool, FloatingPoint, RoundingMode, Real, BitVec], hasArrays=false, hasNonlinArith=false, quantifiers [0] [2023-12-23 23:12:06,794 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.08s for a HTC check with result VALID. Formula has sorts [Bool, FloatingPoint, RoundingMode, Real, BitVec], hasArrays=false, hasNonlinArith=false, quantifiers [0] [2023-12-23 23:12:11,360 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.11s for a HTC check with result UNKNOWN. Formula has sorts [Bool, FloatingPoint, RoundingMode, Real, BitVec], hasArrays=false, hasNonlinArith=false, quantifiers [0] [2023-12-23 23:12:11,368 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-23 23:12:11,368 INFO L93 Difference]: Finished difference Result 386 states and 516 transitions. [2023-12-23 23:12:11,417 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 24 states. [2023-12-23 23:12:11,418 INFO L78 Accepts]: Start accepts. Automaton has has 10 states, 10 states have (on average 4.7) internal successors, (47), 10 states have internal predecessors, (47), 3 states have call successors, (21), 3 states have call predecessors, (21), 4 states have return successors, (21), 2 states have call predecessors, (21), 3 states have call successors, (21) Word has length 140 [2023-12-23 23:12:11,418 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-23 23:12:11,419 INFO L225 Difference]: With dead ends: 386 [2023-12-23 23:12:11,419 INFO L226 Difference]: Without dead ends: 230 [2023-12-23 23:12:11,420 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 530 GetRequests, 502 SyntacticMatches, 0 SemanticMatches, 28 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 147 ImplicationChecksByTransitivity, 2.7s TimeCoverageRelationStatistics Valid=213, Invalid=657, Unknown=0, NotChecked=0, Total=870 [2023-12-23 23:12:11,421 INFO L413 NwaCegarLoop]: 93 mSDtfsCounter, 220 mSDsluCounter, 201 mSDsCounter, 0 mSdLazyCounter, 539 mSolverCounterSat, 46 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 18.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 221 SdHoareTripleChecker+Valid, 294 SdHoareTripleChecker+Invalid, 586 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 46 IncrementalHoareTripleChecker+Valid, 539 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 18.6s IncrementalHoareTripleChecker+Time [2023-12-23 23:12:11,421 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [221 Valid, 294 Invalid, 586 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [46 Valid, 539 Invalid, 1 Unknown, 0 Unchecked, 18.6s Time] [2023-12-23 23:12:11,422 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 230 states. [2023-12-23 23:12:11,446 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 230 to 135. [2023-12-23 23:12:11,447 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 135 states, 84 states have (on average 1.1547619047619047) internal successors, (97), 84 states have internal predecessors, (97), 42 states have call successors, (42), 8 states have call predecessors, (42), 8 states have return successors, (42), 42 states have call predecessors, (42), 42 states have call successors, (42) [2023-12-23 23:12:11,448 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 135 states to 135 states and 181 transitions. [2023-12-23 23:12:11,448 INFO L78 Accepts]: Start accepts. Automaton has 135 states and 181 transitions. Word has length 140 [2023-12-23 23:12:11,450 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-23 23:12:11,450 INFO L495 AbstractCegarLoop]: Abstraction has 135 states and 181 transitions. [2023-12-23 23:12:11,450 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 10 states have (on average 4.7) internal successors, (47), 10 states have internal predecessors, (47), 3 states have call successors, (21), 3 states have call predecessors, (21), 4 states have return successors, (21), 2 states have call predecessors, (21), 3 states have call successors, (21) [2023-12-23 23:12:11,450 INFO L276 IsEmpty]: Start isEmpty. Operand 135 states and 181 transitions. [2023-12-23 23:12:11,452 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 141 [2023-12-23 23:12:11,452 INFO L187 NwaCegarLoop]: Found error trace [2023-12-23 23:12:11,453 INFO L195 NwaCegarLoop]: trace histogram [21, 21, 21, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 23:12:11,460 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/cvc4 --incremental --print-success --lang smt (9)] Forceful destruction successful, exit code 0 [2023-12-23 23:12:11,674 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 (8)] Ended with exit code 0 [2023-12-23 23:12:11,863 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 9 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/cvc4 --incremental --print-success --lang smt,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 23:12:11,863 INFO L420 AbstractCegarLoop]: === Iteration 7 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-23 23:12:11,864 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-23 23:12:11,864 INFO L85 PathProgramCache]: Analyzing trace with hash 1379516425, now seen corresponding path program 1 times [2023-12-23 23:12:11,864 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-12-23 23:12:11,864 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1983064447] [2023-12-23 23:12:11,864 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-23 23:12:11,865 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 23:12:11,865 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2023-12-23 23:12:11,865 INFO L229 MonitoredProcess]: Starting monitored process 10 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 23:12:11,866 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 (10)] Waiting until timeout for monitored process [2023-12-23 23:12:12,241 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-23 23:12:12,257 INFO L262 TraceCheckSpWp]: Trace formula consists of 235 conjuncts, 39 conjunts are in the unsatisfiable core [2023-12-23 23:12:12,261 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-23 23:12:27,377 WARN L293 SmtUtils]: Spent 8.17s 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 23:12:34,776 WARN L293 SmtUtils]: Spent 7.40s 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 23:12:42,467 WARN L293 SmtUtils]: Spent 7.69s 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 23:12:50,628 WARN L293 SmtUtils]: Spent 8.16s 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 23:13:02,598 WARN L293 SmtUtils]: Spent 8.17s 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 23:13:10,674 WARN L293 SmtUtils]: Spent 8.07s 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 23:13:16,451 WARN L293 SmtUtils]: Spent 5.78s 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 23:13:23,224 WARN L293 SmtUtils]: Spent 6.77s 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 23:13:30,092 WARN L293 SmtUtils]: Spent 6.87s 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 23:13:37,651 WARN L293 SmtUtils]: Spent 7.56s on a formula simplification that was a NOOP. DAG size: 3 (called from [L 731] de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher.simplify) [2023-12-23 23:13:45,814 WARN L293 SmtUtils]: Spent 8.16s 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 23:13:53,827 WARN L293 SmtUtils]: Spent 8.01s 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 23:14:02,030 WARN L293 SmtUtils]: Spent 8.20s 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 23:14:10,198 WARN L293 SmtUtils]: Spent 8.17s 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 23:14:17,907 WARN L293 SmtUtils]: Spent 7.71s 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 23:14:26,079 WARN L293 SmtUtils]: Spent 8.17s 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 23:14:33,251 WARN L293 SmtUtils]: Spent 7.17s 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 23:14:41,420 WARN L293 SmtUtils]: Spent 8.17s 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 23:14:50,286 WARN L854 $PredicateComparison]: unable to prove that (let ((.cse0 ((_ sign_extend 24) c_~var_1_13~0)) (.cse7 ((_ zero_extend 24) c_~var_1_5~0)) (.cse6 ((_ zero_extend 24) c_~var_1_6~0))) (and (let ((.cse1 ((_ sign_extend 24) c_~var_1_14~0)) (.cse3 ((_ sign_extend 24) c_~var_1_15~0))) (let ((.cse2 (bvslt .cse1 .cse3))) (or (and (= c_~var_1_12~0 ((_ extract 7 0) (bvadd .cse0 .cse1))) .cse2) (and (= c_~var_1_12~0 ((_ extract 7 0) (bvadd .cse0 .cse3))) (not .cse2))))) (bvsle ((_ zero_extend 24) c_~var_1_28~0) (_ bv0 32)) (= (_ bv1 8) c_~var_1_11~0) (let ((.cse5 (bvadd (_ bv256 32) ((_ sign_extend 24) c_~var_1_12~0) (bvneg c_~var_1_8~0)))) (let ((.cse4 (bvslt .cse0 .cse5))) (or (and (not .cse4) (= ((_ extract 15 0) .cse5) c_~var_1_21~0)) (and (= ((_ extract 15 0) .cse0) c_~var_1_21~0) .cse4)))) (= ((_ extract 7 0) (bvadd (bvneg .cse6) .cse7 (_ bv4294967294 32))) c_~var_1_1~0) (fp.lt (fp.mul c_currentRoundingMode c_~var_1_22~0 (fp.neg ((_ to_fp 11 53) c_currentRoundingMode (/ 5.0 8.0)))) (fp.mul c_currentRoundingMode c_~var_1_23~0 c_~var_1_24~0)) (bvsle ((_ zero_extend 24) c_~var_1_19~0) (_ bv63 32)) (= (_ bv1 8) c_~var_1_27~0) (= (_ bv16 32) c_~last_1_var_1_8~0) (bvsle .cse6 (_ bv127 32)) (bvsge .cse7 (_ bv190 32)) (= (_ bv0 16) (bvadd (_ bv2 16) c_~var_1_7~0)) (= (_ bv0 16) (bvadd (_ bv8 16) c_~var_1_29~0)) (= c_~var_1_8~0 .cse6))) is different from false [2023-12-23 23:15:03,540 WARN L293 SmtUtils]: Spent 7.98s 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 23:15:11,704 WARN L293 SmtUtils]: Spent 8.16s 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 23:15:19,865 WARN L293 SmtUtils]: Spent 8.16s 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 23:15:28,027 WARN L293 SmtUtils]: Spent 8.16s 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 23:15:39,751 WARN L293 SmtUtils]: Spent 7.51s 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 23:15:47,910 WARN L293 SmtUtils]: Spent 8.16s 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 23:16:03,401 WARN L293 SmtUtils]: Spent 8.16s 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 23:16:11,561 WARN L293 SmtUtils]: Spent 8.16s 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 23:16:19,719 WARN L293 SmtUtils]: Spent 8.16s 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 23:16:29,412 WARN L293 SmtUtils]: Spent 8.17s 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 23:16:34,670 WARN L293 SmtUtils]: Spent 5.26s 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 23:16:50,311 WARN L293 SmtUtils]: Spent 7.43s 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 23:17:05,092 WARN L293 SmtUtils]: Spent 7.97s 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 23:17:15,937 WARN L293 SmtUtils]: Spent 8.16s 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 23:17:26,136 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 23:17:34,296 WARN L293 SmtUtils]: Spent 8.16s 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 23:17:42,461 WARN L293 SmtUtils]: Spent 8.16s 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 23:17:50,629 WARN L293 SmtUtils]: Spent 8.17s 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 23:17:58,808 WARN L293 SmtUtils]: Spent 5.95s 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 23:18:06,967 WARN L293 SmtUtils]: Spent 8.16s 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 23:18:13,409 WARN L293 SmtUtils]: Spent 6.44s 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 23:18:21,571 WARN L293 SmtUtils]: Spent 8.16s 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 23:18:27,824 WARN L293 SmtUtils]: Spent 6.25s 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 23:18:33,306 WARN L293 SmtUtils]: Spent 5.48s 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 23:18:41,468 WARN L293 SmtUtils]: Spent 8.16s 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 23:18:49,632 WARN L293 SmtUtils]: Spent 8.16s 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 23:18:57,795 WARN L293 SmtUtils]: Spent 8.16s 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 23:19:05,965 WARN L293 SmtUtils]: Spent 8.17s 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 23:19:14,170 WARN L293 SmtUtils]: Spent 8.18s 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 23:19:22,276 WARN L293 SmtUtils]: Spent 8.11s 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 23:19:30,450 WARN L293 SmtUtils]: Spent 8.17s 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 23:19:38,621 WARN L293 SmtUtils]: Spent 8.17s 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 23:19:44,810 WARN L293 SmtUtils]: Spent 6.19s 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 23:19:50,711 WARN L293 SmtUtils]: Spent 5.90s 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 23:19:58,883 WARN L293 SmtUtils]: Spent 8.17s 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 23:20:05,096 WARN L293 SmtUtils]: Spent 6.21s 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 23:20:13,208 WARN L293 SmtUtils]: Spent 8.11s 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 23:20:19,024 WARN L293 SmtUtils]: Spent 5.82s 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 23:20:31,165 WARN L293 SmtUtils]: Spent 7.17s 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 23:20:39,234 WARN L293 SmtUtils]: Spent 8.07s 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 23:20:47,397 WARN L293 SmtUtils]: Spent 8.16s 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 23:20:58,074 WARN L293 SmtUtils]: Spent 7.56s 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 23:21:05,949 WARN L293 SmtUtils]: Spent 7.72s 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 23:21:13,390 WARN L293 SmtUtils]: Spent 7.44s 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 23:21:21,550 WARN L293 SmtUtils]: Spent 8.16s 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 23:21:29,386 WARN L293 SmtUtils]: Spent 7.84s 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 23:21:37,572 WARN L293 SmtUtils]: Spent 8.18s 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 23:21:45,684 WARN L854 $PredicateComparison]: unable to prove that (let ((.cse2 ((_ sign_extend 24) c_~var_1_13~0)) (.cse0 (bvneg c_~var_1_8~0)) (.cse1 ((_ zero_extend 24) c_~var_1_19~0)) (.cse9 ((_ zero_extend 24) c_~var_1_5~0)) (.cse8 ((_ zero_extend 24) c_~var_1_6~0))) (and (not (bvsge ((_ sign_extend 16) (_ bv65528 16)) (bvadd .cse0 ((_ zero_extend 24) c_~var_1_1~0) .cse1))) (let ((.cse3 ((_ sign_extend 24) c_~var_1_14~0)) (.cse5 ((_ sign_extend 24) c_~var_1_15~0))) (let ((.cse4 (bvslt .cse3 .cse5))) (or (and (= c_~var_1_12~0 ((_ extract 7 0) (bvadd .cse2 .cse3))) .cse4) (and (= c_~var_1_12~0 ((_ extract 7 0) (bvadd .cse2 .cse5))) (not .cse4))))) (bvsle ((_ zero_extend 24) c_~var_1_28~0) (_ bv0 32)) (= (_ bv1 8) c_~var_1_11~0) (let ((.cse7 (bvadd (_ bv256 32) ((_ sign_extend 24) c_~var_1_12~0) .cse0))) (let ((.cse6 (bvslt .cse2 .cse7))) (or (and (not .cse6) (= ((_ extract 15 0) .cse7) c_~var_1_21~0)) (and (= ((_ extract 15 0) .cse2) c_~var_1_21~0) .cse6)))) (= ((_ extract 7 0) (bvadd (bvneg .cse8) .cse9 (_ bv4294967294 32))) c_~var_1_1~0) (fp.lt (fp.mul c_currentRoundingMode c_~var_1_22~0 (fp.neg ((_ to_fp 11 53) c_currentRoundingMode (/ 5.0 8.0)))) (fp.mul c_currentRoundingMode c_~var_1_23~0 c_~var_1_24~0)) (bvsle .cse1 (_ bv63 32)) (= (_ bv1 8) c_~var_1_27~0) (= (_ bv16 32) c_~last_1_var_1_8~0) (bvsle .cse8 (_ bv127 32)) (bvsge .cse9 (_ bv190 32)) (= (_ bv0 16) (bvadd (_ bv2 16) c_~var_1_7~0)) (= (_ bv0 16) (bvadd (_ bv8 16) c_~var_1_29~0)) (= c_~var_1_8~0 .cse8))) is different from false [2023-12-23 23:21:49,733 WARN L876 $PredicateComparison]: unable to prove that (let ((.cse2 ((_ sign_extend 24) c_~var_1_13~0)) (.cse0 (bvneg c_~var_1_8~0)) (.cse1 ((_ zero_extend 24) c_~var_1_19~0)) (.cse9 ((_ zero_extend 24) c_~var_1_5~0)) (.cse8 ((_ zero_extend 24) c_~var_1_6~0))) (and (not (bvsge ((_ sign_extend 16) (_ bv65528 16)) (bvadd .cse0 ((_ zero_extend 24) c_~var_1_1~0) .cse1))) (let ((.cse3 ((_ sign_extend 24) c_~var_1_14~0)) (.cse5 ((_ sign_extend 24) c_~var_1_15~0))) (let ((.cse4 (bvslt .cse3 .cse5))) (or (and (= c_~var_1_12~0 ((_ extract 7 0) (bvadd .cse2 .cse3))) .cse4) (and (= c_~var_1_12~0 ((_ extract 7 0) (bvadd .cse2 .cse5))) (not .cse4))))) (bvsle ((_ zero_extend 24) c_~var_1_28~0) (_ bv0 32)) (= (_ bv1 8) c_~var_1_11~0) (let ((.cse7 (bvadd (_ bv256 32) ((_ sign_extend 24) c_~var_1_12~0) .cse0))) (let ((.cse6 (bvslt .cse2 .cse7))) (or (and (not .cse6) (= ((_ extract 15 0) .cse7) c_~var_1_21~0)) (and (= ((_ extract 15 0) .cse2) c_~var_1_21~0) .cse6)))) (= ((_ extract 7 0) (bvadd (bvneg .cse8) .cse9 (_ bv4294967294 32))) c_~var_1_1~0) (fp.lt (fp.mul c_currentRoundingMode c_~var_1_22~0 (fp.neg ((_ to_fp 11 53) c_currentRoundingMode (/ 5.0 8.0)))) (fp.mul c_currentRoundingMode c_~var_1_23~0 c_~var_1_24~0)) (bvsle .cse1 (_ bv63 32)) (= (_ bv1 8) c_~var_1_27~0) (= (_ bv16 32) c_~last_1_var_1_8~0) (bvsle .cse8 (_ bv127 32)) (bvsge .cse9 (_ bv190 32)) (= (_ bv0 16) (bvadd (_ bv2 16) c_~var_1_7~0)) (= (_ bv0 16) (bvadd (_ bv8 16) c_~var_1_29~0)) (= c_~var_1_8~0 .cse8))) is different from true [2023-12-23 23:21:57,917 WARN L293 SmtUtils]: Spent 8.17s 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 23:22:06,019 WARN L293 SmtUtils]: Spent 8.10s 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 23:22:13,135 WARN L293 SmtUtils]: Spent 7.12s 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 23:22:21,377 WARN L293 SmtUtils]: Spent 8.24s 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 23:22:26,719 WARN L293 SmtUtils]: Spent 5.34s 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 23:22:33,266 WARN L293 SmtUtils]: Spent 6.55s 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 23:22:41,439 WARN L293 SmtUtils]: Spent 8.17s 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 23:22:53,746 WARN L293 SmtUtils]: Spent 8.16s 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 23:22:59,380 WARN L293 SmtUtils]: Spent 5.63s 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 23:23:11,055 WARN L293 SmtUtils]: Spent 8.16s 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 23:23:18,047 WARN L293 SmtUtils]: Spent 6.99s 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 23:23:26,209 WARN L293 SmtUtils]: Spent 8.16s 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 23:23:37,411 WARN L293 SmtUtils]: Spent 6.88s 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 23:23:45,576 WARN L293 SmtUtils]: Spent 8.16s 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 23:23:53,738 WARN L293 SmtUtils]: Spent 8.16s 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 23:24:00,424 WARN L293 SmtUtils]: Spent 6.69s 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 23:24:08,582 WARN L293 SmtUtils]: Spent 8.16s 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 23:24:20,231 WARN L293 SmtUtils]: Spent 8.16s on a formula simplification that was a NOOP. DAG size: 16 (called from [L 731] de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher.simplify) [2023-12-23 23:24:24,279 WARN L854 $PredicateComparison]: unable to prove that (let ((.cse2 ((_ sign_extend 24) c_~var_1_13~0)) (.cse0 (bvneg c_~var_1_8~0)) (.cse1 ((_ zero_extend 24) c_~var_1_19~0)) (.cse6 ((_ zero_extend 24) c_~var_1_5~0)) (.cse9 ((_ zero_extend 24) c_~var_1_6~0))) (and (not (bvsge ((_ sign_extend 16) (_ bv65528 16)) (bvadd .cse0 ((_ zero_extend 24) c_~var_1_1~0) .cse1))) (let ((.cse3 ((_ sign_extend 24) c_~var_1_14~0)) (.cse5 ((_ sign_extend 24) c_~var_1_15~0))) (let ((.cse4 (bvslt .cse3 .cse5))) (or (and (= c_~var_1_12~0 ((_ extract 7 0) (bvadd .cse2 .cse3))) .cse4) (and (= c_~var_1_12~0 ((_ extract 7 0) (bvadd .cse2 .cse5))) (not .cse4))))) (= ((_ extract 7 0) (bvadd (bvneg (bvadd ((_ zero_extend 24) c_~var_1_17~0) (bvneg ((_ zero_extend 24) c_~var_1_18~0)) (bvneg .cse1))) .cse6)) c_~var_1_16~0) (bvsle ((_ zero_extend 24) c_~var_1_28~0) (_ bv0 32)) (= (_ bv1 8) c_~var_1_11~0) (let ((.cse8 (bvadd (_ bv256 32) ((_ sign_extend 24) c_~var_1_12~0) .cse0))) (let ((.cse7 (bvslt .cse2 .cse8))) (or (and (not .cse7) (= ((_ extract 15 0) .cse8) c_~var_1_21~0)) (and (= ((_ extract 15 0) .cse2) c_~var_1_21~0) .cse7)))) (= ((_ extract 7 0) (bvadd (bvneg .cse9) .cse6 (_ bv4294967294 32))) c_~var_1_1~0) (fp.lt (fp.mul c_currentRoundingMode c_~var_1_22~0 (fp.neg ((_ to_fp 11 53) c_currentRoundingMode (/ 5.0 8.0)))) (fp.mul c_currentRoundingMode c_~var_1_23~0 c_~var_1_24~0)) (bvsle .cse1 (_ bv63 32)) (= (_ bv1 8) c_~var_1_27~0) (= (_ bv16 32) c_~last_1_var_1_8~0) (bvsle .cse9 (_ bv127 32)) (bvsge .cse6 (_ bv190 32)) (= (_ bv0 16) (bvadd (_ bv2 16) c_~var_1_7~0)) (= (_ bv0 16) (bvadd (_ bv8 16) c_~var_1_29~0)) (= c_~var_1_8~0 .cse9))) is different from false [2023-12-23 23:24:28,329 WARN L876 $PredicateComparison]: unable to prove that (let ((.cse2 ((_ sign_extend 24) c_~var_1_13~0)) (.cse0 (bvneg c_~var_1_8~0)) (.cse1 ((_ zero_extend 24) c_~var_1_19~0)) (.cse6 ((_ zero_extend 24) c_~var_1_5~0)) (.cse9 ((_ zero_extend 24) c_~var_1_6~0))) (and (not (bvsge ((_ sign_extend 16) (_ bv65528 16)) (bvadd .cse0 ((_ zero_extend 24) c_~var_1_1~0) .cse1))) (let ((.cse3 ((_ sign_extend 24) c_~var_1_14~0)) (.cse5 ((_ sign_extend 24) c_~var_1_15~0))) (let ((.cse4 (bvslt .cse3 .cse5))) (or (and (= c_~var_1_12~0 ((_ extract 7 0) (bvadd .cse2 .cse3))) .cse4) (and (= c_~var_1_12~0 ((_ extract 7 0) (bvadd .cse2 .cse5))) (not .cse4))))) (= ((_ extract 7 0) (bvadd (bvneg (bvadd ((_ zero_extend 24) c_~var_1_17~0) (bvneg ((_ zero_extend 24) c_~var_1_18~0)) (bvneg .cse1))) .cse6)) c_~var_1_16~0) (bvsle ((_ zero_extend 24) c_~var_1_28~0) (_ bv0 32)) (= (_ bv1 8) c_~var_1_11~0) (let ((.cse8 (bvadd (_ bv256 32) ((_ sign_extend 24) c_~var_1_12~0) .cse0))) (let ((.cse7 (bvslt .cse2 .cse8))) (or (and (not .cse7) (= ((_ extract 15 0) .cse8) c_~var_1_21~0)) (and (= ((_ extract 15 0) .cse2) c_~var_1_21~0) .cse7)))) (= ((_ extract 7 0) (bvadd (bvneg .cse9) .cse6 (_ bv4294967294 32))) c_~var_1_1~0) (fp.lt (fp.mul c_currentRoundingMode c_~var_1_22~0 (fp.neg ((_ to_fp 11 53) c_currentRoundingMode (/ 5.0 8.0)))) (fp.mul c_currentRoundingMode c_~var_1_23~0 c_~var_1_24~0)) (bvsle .cse1 (_ bv63 32)) (= (_ bv1 8) c_~var_1_27~0) (= (_ bv16 32) c_~last_1_var_1_8~0) (bvsle .cse9 (_ bv127 32)) (bvsge .cse6 (_ bv190 32)) (= (_ bv0 16) (bvadd (_ bv2 16) c_~var_1_7~0)) (= (_ bv0 16) (bvadd (_ bv8 16) c_~var_1_29~0)) (= c_~var_1_8~0 .cse9))) is different from true [2023-12-23 23:24:34,538 WARN L293 SmtUtils]: Spent 6.18s 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 23:24:41,076 WARN L293 SmtUtils]: Spent 6.54s 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 23:24:49,232 WARN L293 SmtUtils]: Spent 8.15s 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 23:24:57,074 WARN L293 SmtUtils]: Spent 7.84s 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 23:25:03,921 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 23:25:12,089 WARN L293 SmtUtils]: Spent 8.17s 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) Received shutdown request... [2023-12-23 23:25:15,277 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 (10)] Timeout while monitored process is still running, waiting 1000 ms for graceful end [2023-12-23 23:25:15,278 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 23:25:16,290 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 (10)] Forceful destruction successful, exit code 0 [2023-12-23 23:25:16,480 WARN L435 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (1)] Forcibly destroying the process [2023-12-23 23:25:16,502 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (1)] Forceful destruction successful, exit code 137 [2023-12-23 23:25:16,504 INFO L805 garLoopResultBuilder]: Registering result TIMEOUT for location ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION (0 of 1 remaining) [2023-12-23 23:25:16,504 WARN L619 AbstractCegarLoop]: Verification canceled: while NwaCegarLoop was analyzing trace of length 141 with TraceHistMax 21,while TraceCheckSpWp was constructing forward predicates,while executing Executor. [2023-12-23 23:25:16,508 INFO L445 BasicCegarLoop]: Path program histogram: [1, 1, 1, 1, 1, 1, 1] [2023-12-23 23:25:16,509 INFO L179 ceAbstractionStarter]: Computing trace abstraction results [2023-12-23 23:25:16,510 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 23.12 11:25:16 BoogieIcfgContainer [2023-12-23 23:25:16,511 INFO L131 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2023-12-23 23:25:16,511 INFO L158 Benchmark]: Toolchain (without parser) took 885166.26ms. Allocated memory was 205.5MB in the beginning and 271.6MB in the end (delta: 66.1MB). Free memory was 166.1MB in the beginning and 108.8MB in the end (delta: 57.3MB). Peak memory consumption was 124.8MB. Max. memory is 8.0GB. [2023-12-23 23:25:16,511 INFO L158 Benchmark]: CDTParser took 0.13ms. Allocated memory is still 205.5MB. Free memory is still 158.9MB. There was no memory consumed. Max. memory is 8.0GB. [2023-12-23 23:25:16,511 INFO L158 Benchmark]: CACSL2BoogieTranslator took 234.10ms. Allocated memory is still 205.5MB. Free memory was 165.9MB in the beginning and 149.4MB in the end (delta: 16.6MB). Peak memory consumption was 16.8MB. Max. memory is 8.0GB. [2023-12-23 23:25:16,511 INFO L158 Benchmark]: Boogie Procedure Inliner took 53.99ms. Allocated memory is still 205.5MB. Free memory was 149.2MB in the beginning and 146.6MB in the end (delta: 2.5MB). Peak memory consumption was 3.1MB. Max. memory is 8.0GB. [2023-12-23 23:25:16,512 INFO L158 Benchmark]: Boogie Preprocessor took 55.99ms. Allocated memory is still 205.5MB. Free memory was 146.2MB in the beginning and 142.0MB in the end (delta: 4.2MB). Peak memory consumption was 4.2MB. Max. memory is 8.0GB. [2023-12-23 23:25:16,512 INFO L158 Benchmark]: RCFGBuilder took 12015.51ms. Allocated memory is still 205.5MB. Free memory was 142.0MB in the beginning and 114.1MB in the end (delta: 27.9MB). Peak memory consumption was 28.3MB. Max. memory is 8.0GB. [2023-12-23 23:25:16,512 INFO L158 Benchmark]: TraceAbstraction took 872785.55ms. Allocated memory was 205.5MB in the beginning and 271.6MB in the end (delta: 66.1MB). Free memory was 113.5MB in the beginning and 108.8MB in the end (delta: 4.7MB). Peak memory consumption was 72.4MB. Max. memory is 8.0GB. [2023-12-23 23:25:16,513 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 205.5MB. Free memory is still 158.9MB. There was no memory consumed. Max. memory is 8.0GB. * CACSL2BoogieTranslator took 234.10ms. Allocated memory is still 205.5MB. Free memory was 165.9MB in the beginning and 149.4MB in the end (delta: 16.6MB). Peak memory consumption was 16.8MB. Max. memory is 8.0GB. * Boogie Procedure Inliner took 53.99ms. Allocated memory is still 205.5MB. Free memory was 149.2MB in the beginning and 146.6MB in the end (delta: 2.5MB). Peak memory consumption was 3.1MB. Max. memory is 8.0GB. * Boogie Preprocessor took 55.99ms. Allocated memory is still 205.5MB. Free memory was 146.2MB in the beginning and 142.0MB in the end (delta: 4.2MB). Peak memory consumption was 4.2MB. Max. memory is 8.0GB. * RCFGBuilder took 12015.51ms. Allocated memory is still 205.5MB. Free memory was 142.0MB in the beginning and 114.1MB in the end (delta: 27.9MB). Peak memory consumption was 28.3MB. Max. memory is 8.0GB. * TraceAbstraction took 872785.55ms. Allocated memory was 205.5MB in the beginning and 271.6MB in the end (delta: 66.1MB). Free memory was 113.5MB in the beginning and 108.8MB in the end (delta: 4.7MB). Peak memory consumption was 72.4MB. 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 141 with TraceHistMax 21,while TraceCheckSpWp was constructing forward predicates,while executing Executor. - StatisticsResult: Ultimate Automizer benchmark data CFG has 2 procedures, 69 locations, 1 error locations. Started 1 CEGAR loops. OverallTime: 872.7s, OverallIterations: 7, TraceHistogramMax: 21, PathProgramHistogramMax: 1, EmptinessCheckTime: 0.0s, AutomataDifference: 75.0s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 8 mSolverCounterUnknown, 581 SdHoareTripleChecker+Valid, 71.7s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 578 mSDsluCounter, 1281 SdHoareTripleChecker+Invalid, 71.0s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 759 mSDsCounter, 186 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 1165 IncrementalHoareTripleChecker+Invalid, 1359 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 186 mSolverCounterUnsat, 522 mSDtfsCounter, 1165 mSolverCounterSat, 0.0s SdHoareTripleChecker+Time, 8 IncrementalHoareTripleChecker+Unknown, PredicateUnifierStatistics: 0 DeclaredPredicates, 1595 GetRequests, 1533 SyntacticMatches, 0 SemanticMatches, 62 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 223 ImplicationChecksByTransitivity, 3.8s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=157occurred in iteration=5, InterpolantAutomatonStates: 57, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: 0.1s AutomataMinimizationTime, 6 MinimizatonAttempts, 151 StatesRemovedByMinimization, 4 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.1s SsaConstructionTime, 3.0s SatisfiabilityAnalysisTime, 7.8s InterpolantComputationTime, 1103 NumberOfCodeBlocks, 1103 NumberOfCodeBlocksAsserted, 8 NumberOfCheckSat, 1095 ConstructedInterpolants, 21 QuantifiedInterpolants, 5171 SizeOfPredicates, 32 NumberOfNonLiveVariables, 1866 ConjunctsInSsa, 49 ConjunctsInUnsatCore, 8 InterpolantComputations, 4 PerfectInterpolantSequences, 6288/6720 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