/usr/lib/jvm/java-1.11.0-openjdk-amd64/bin/java -Xmx8000000000 -Xss4m -jar ./plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata ./data -s ../../../trunk/examples/settings/default/automizer/svcomp-Reach-32bit-Automizer_Bitvector.epf -tc ../../../trunk/examples/toolchains/AutomizerCInline.xml -i ../../../trunk/examples/svcomp/hardness-nfm22/hardness_fillercode_fillercodesize_ps-cn-100_file-85.i -------------------------------------------------------------------------------- This is Ultimate 0.2.4-tmp.fs.bitabs-eval-d9c3e40-m [2023-12-23 00:44:40,608 INFO L188 SettingsManager]: Resetting all preferences to default values... [2023-12-23 00:44:40,691 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 00:44:40,695 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2023-12-23 00:44:40,695 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2023-12-23 00:44:40,724 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2023-12-23 00:44:40,724 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2023-12-23 00:44:40,724 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2023-12-23 00:44:40,725 INFO L151 SettingsManager]: Preferences of Boogie Preprocessor differ from their defaults: [2023-12-23 00:44:40,728 INFO L153 SettingsManager]: * Use memory slicer=true [2023-12-23 00:44:40,729 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2023-12-23 00:44:40,729 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2023-12-23 00:44:40,730 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2023-12-23 00:44:40,731 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2023-12-23 00:44:40,731 INFO L153 SettingsManager]: * Use SBE=true [2023-12-23 00:44:40,732 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2023-12-23 00:44:40,732 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2023-12-23 00:44:40,732 INFO L153 SettingsManager]: * sizeof long=4 [2023-12-23 00:44:40,733 INFO L153 SettingsManager]: * sizeof POINTER=4 [2023-12-23 00:44:40,733 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2023-12-23 00:44:40,733 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2023-12-23 00:44:40,733 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2023-12-23 00:44:40,734 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2023-12-23 00:44:40,734 INFO L153 SettingsManager]: * Adapt memory model on pointer casts if necessary=true [2023-12-23 00:44:40,734 INFO L153 SettingsManager]: * Use bitvectors instead of ints=true [2023-12-23 00:44:40,734 INFO L153 SettingsManager]: * Allow undefined functions=false [2023-12-23 00:44:40,734 INFO L153 SettingsManager]: * Memory model=HoenickeLindenmann_4ByteResolution [2023-12-23 00:44:40,735 INFO L153 SettingsManager]: * sizeof long double=12 [2023-12-23 00:44:40,735 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2023-12-23 00:44:40,735 INFO L153 SettingsManager]: * Use constant arrays=true [2023-12-23 00:44:40,736 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2023-12-23 00:44:40,736 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2023-12-23 00:44:40,736 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2023-12-23 00:44:40,736 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2023-12-23 00:44:40,737 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2023-12-23 00:44:40,737 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2023-12-23 00:44:40,737 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2023-12-23 00:44:40,737 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2023-12-23 00:44:40,737 INFO L153 SettingsManager]: * Trace refinement strategy=WOLF [2023-12-23 00:44:40,737 INFO L153 SettingsManager]: * Command for external solver=cvc4 --incremental --print-success --lang smt [2023-12-23 00:44:40,738 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2023-12-23 00:44:40,738 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2023-12-23 00:44:40,738 INFO L153 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2023-12-23 00:44:40,738 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2023-12-23 00:44:40,738 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2023-12-23 00:44:40,739 INFO L153 SettingsManager]: * Logic for external solver=AUFBV [2023-12-23 00:44:40,739 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release [2023-12-23 00:44:40,963 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2023-12-23 00:44:40,987 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2023-12-23 00:44:40,989 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2023-12-23 00:44:40,990 INFO L270 PluginConnector]: Initializing CDTParser... [2023-12-23 00:44:40,990 INFO L274 PluginConnector]: CDTParser initialized [2023-12-23 00:44:40,992 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/hardness-nfm22/hardness_fillercode_fillercodesize_ps-cn-100_file-85.i [2023-12-23 00:44:42,145 INFO L533 CDTParser]: Created temporary CDT project at NULL [2023-12-23 00:44:42,361 INFO L384 CDTParser]: Found 1 translation units. [2023-12-23 00:44:42,361 INFO L180 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/hardness-nfm22/hardness_fillercode_fillercodesize_ps-cn-100_file-85.i [2023-12-23 00:44:42,370 INFO L427 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/ebfc6f061/fbc9b65423164a349a9fc4fa0f87593e/FLAGdf292bba7 [2023-12-23 00:44:42,385 INFO L435 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/ebfc6f061/fbc9b65423164a349a9fc4fa0f87593e [2023-12-23 00:44:42,387 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2023-12-23 00:44:42,389 INFO L133 ToolchainWalker]: Walking toolchain with 5 elements. [2023-12-23 00:44:42,390 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2023-12-23 00:44:42,390 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2023-12-23 00:44:42,395 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2023-12-23 00:44:42,395 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 23.12 12:44:42" (1/1) ... [2023-12-23 00:44:42,396 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@457e92f and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.12 12:44:42, skipping insertion in model container [2023-12-23 00:44:42,396 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 23.12 12:44:42" (1/1) ... [2023-12-23 00:44:42,444 INFO L177 MainTranslator]: Built tables and reachable declarations [2023-12-23 00:44:42,556 WARN L239 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/trunk/examples/svcomp/hardness-nfm22/hardness_fillercode_fillercodesize_ps-cn-100_file-85.i[916,929] [2023-12-23 00:44:42,636 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-12-23 00:44:42,650 INFO L202 MainTranslator]: Completed pre-run [2023-12-23 00:44:42,659 WARN L239 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/trunk/examples/svcomp/hardness-nfm22/hardness_fillercode_fillercodesize_ps-cn-100_file-85.i[916,929] [2023-12-23 00:44:42,700 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-12-23 00:44:42,716 INFO L206 MainTranslator]: Completed translation [2023-12-23 00:44:42,717 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.12 12:44:42 WrapperNode [2023-12-23 00:44:42,717 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2023-12-23 00:44:42,718 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2023-12-23 00:44:42,718 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2023-12-23 00:44:42,718 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2023-12-23 00:44:42,724 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.12 12:44:42" (1/1) ... [2023-12-23 00:44:42,738 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.12 12:44:42" (1/1) ... [2023-12-23 00:44:42,778 INFO L138 Inliner]: procedures = 27, calls = 58, calls flagged for inlining = 8, calls inlined = 8, statements flattened = 280 [2023-12-23 00:44:42,779 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2023-12-23 00:44:42,779 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2023-12-23 00:44:42,779 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2023-12-23 00:44:42,779 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2023-12-23 00:44:42,788 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.12 12:44:42" (1/1) ... [2023-12-23 00:44:42,788 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.12 12:44:42" (1/1) ... [2023-12-23 00:44:42,794 INFO L184 PluginConnector]: Executing the observer MemorySlicer from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.12 12:44:42" (1/1) ... [2023-12-23 00:44:42,812 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 00:44:42,812 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.12 12:44:42" (1/1) ... [2023-12-23 00:44:42,812 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.12 12:44:42" (1/1) ... [2023-12-23 00:44:42,834 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.12 12:44:42" (1/1) ... [2023-12-23 00:44:42,837 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.12 12:44:42" (1/1) ... [2023-12-23 00:44:42,840 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.12 12:44:42" (1/1) ... [2023-12-23 00:44:42,842 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.12 12:44:42" (1/1) ... [2023-12-23 00:44:42,872 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2023-12-23 00:44:42,873 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2023-12-23 00:44:42,873 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2023-12-23 00:44:42,873 INFO L274 PluginConnector]: RCFGBuilder initialized [2023-12-23 00:44:42,874 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.12 12:44:42" (1/1) ... [2023-12-23 00:44:42,878 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2023-12-23 00:44:42,889 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-12-23 00:44:42,902 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 00:44:42,931 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 00:44:42,937 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2023-12-23 00:44:42,937 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE1#0 [2023-12-23 00:44:42,937 INFO L130 BoogieDeclarations]: Found specification of procedure assume_abort_if_not [2023-12-23 00:44:42,938 INFO L138 BoogieDeclarations]: Found implementation of procedure assume_abort_if_not [2023-12-23 00:44:42,938 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2023-12-23 00:44:42,938 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2023-12-23 00:44:43,045 INFO L241 CfgBuilder]: Building ICFG [2023-12-23 00:44:43,047 INFO L267 CfgBuilder]: Building CFG for each procedure with an implementation [2023-12-23 00:45:01,640 INFO L282 CfgBuilder]: Performing block encoding [2023-12-23 00:45:01,678 INFO L304 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2023-12-23 00:45:01,678 INFO L309 CfgBuilder]: Removed 1 assume(true) statements. [2023-12-23 00:45:01,679 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 23.12 12:45:01 BoogieIcfgContainer [2023-12-23 00:45:01,679 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2023-12-23 00:45:01,681 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2023-12-23 00:45:01,681 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2023-12-23 00:45:01,684 INFO L274 PluginConnector]: TraceAbstraction initialized [2023-12-23 00:45:01,684 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 23.12 12:44:42" (1/3) ... [2023-12-23 00:45:01,685 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@5c1e52e4 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 23.12 12:45:01, skipping insertion in model container [2023-12-23 00:45:01,685 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.12 12:44:42" (2/3) ... [2023-12-23 00:45:01,685 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@5c1e52e4 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 23.12 12:45:01, skipping insertion in model container [2023-12-23 00:45:01,686 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 23.12 12:45:01" (3/3) ... [2023-12-23 00:45:01,687 INFO L112 eAbstractionObserver]: Analyzing ICFG hardness_fillercode_fillercodesize_ps-cn-100_file-85.i [2023-12-23 00:45:01,702 INFO L204 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2023-12-23 00:45:01,702 INFO L163 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2023-12-23 00:45:01,747 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2023-12-23 00:45:01,755 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;@1457735, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2023-12-23 00:45:01,756 INFO L358 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2023-12-23 00:45:01,759 INFO L276 IsEmpty]: Start isEmpty. Operand has 119 states, 71 states have (on average 1.4929577464788732) internal successors, (106), 72 states have internal predecessors, (106), 45 states have call successors, (45), 1 states have call predecessors, (45), 1 states have return successors, (45), 45 states have call predecessors, (45), 45 states have call successors, (45) [2023-12-23 00:45:01,777 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 279 [2023-12-23 00:45:01,777 INFO L187 NwaCegarLoop]: Found error trace [2023-12-23 00:45:01,778 INFO L195 NwaCegarLoop]: trace histogram [45, 45, 45, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 00:45:01,779 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-23 00:45:01,783 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-23 00:45:01,783 INFO L85 PathProgramCache]: Analyzing trace with hash 1017674570, now seen corresponding path program 1 times [2023-12-23 00:45:01,797 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-12-23 00:45:01,797 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [124891621] [2023-12-23 00:45:01,798 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-23 00:45:01,799 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 00:45:01,799 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2023-12-23 00:45:01,804 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 00:45:01,808 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 00:45:03,085 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-23 00:45:03,147 INFO L262 TraceCheckSpWp]: Trace formula consists of 456 conjuncts, 1 conjunts are in the unsatisfiable core [2023-12-23 00:45:03,159 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-23 00:45:03,227 INFO L134 CoverageAnalysis]: Checked inductivity of 3960 backedges. 728 proven. 0 refuted. 0 times theorem prover too weak. 3232 trivial. 0 not checked. [2023-12-23 00:45:03,228 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-12-23 00:45:03,235 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-12-23 00:45:03,236 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [124891621] [2023-12-23 00:45:03,236 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [124891621] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-23 00:45:03,236 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-23 00:45:03,237 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2023-12-23 00:45:03,238 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1508391446] [2023-12-23 00:45:03,240 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-23 00:45:03,246 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2023-12-23 00:45:03,246 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-12-23 00:45:03,275 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2023-12-23 00:45:03,276 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2023-12-23 00:45:03,279 INFO L87 Difference]: Start difference. First operand has 119 states, 71 states have (on average 1.4929577464788732) internal successors, (106), 72 states have internal predecessors, (106), 45 states have call successors, (45), 1 states have call predecessors, (45), 1 states have return successors, (45), 45 states have call predecessors, (45), 45 states have call successors, (45) Second operand has 2 states, 2 states have (on average 30.0) internal successors, (60), 2 states have internal predecessors, (60), 2 states have call successors, (45), 2 states have call predecessors, (45), 2 states have return successors, (45), 2 states have call predecessors, (45), 2 states have call successors, (45) [2023-12-23 00:45:05,250 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.88s for a HTC check with result INVALID. Formula has sorts [Bool, FloatingPoint, RoundingMode, Real, BitVec], hasArrays=false, hasNonlinArith=false, quantifiers [] [2023-12-23 00:45:05,251 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-23 00:45:05,252 INFO L93 Difference]: Finished difference Result 235 states and 435 transitions. [2023-12-23 00:45:05,289 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2023-12-23 00:45:05,291 INFO L78 Accepts]: Start accepts. Automaton has has 2 states, 2 states have (on average 30.0) internal successors, (60), 2 states have internal predecessors, (60), 2 states have call successors, (45), 2 states have call predecessors, (45), 2 states have return successors, (45), 2 states have call predecessors, (45), 2 states have call successors, (45) Word has length 278 [2023-12-23 00:45:05,291 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-23 00:45:05,298 INFO L225 Difference]: With dead ends: 235 [2023-12-23 00:45:05,298 INFO L226 Difference]: Without dead ends: 117 [2023-12-23 00:45:05,303 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 277 GetRequests, 277 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 00:45:05,307 INFO L413 NwaCegarLoop]: 188 mSDtfsCounter, 0 mSDsluCounter, 0 mSDsCounter, 0 mSdLazyCounter, 3 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.9s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 188 SdHoareTripleChecker+Invalid, 3 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 3 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.9s IncrementalHoareTripleChecker+Time [2023-12-23 00:45:05,308 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 188 Invalid, 3 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 3 Invalid, 0 Unknown, 0 Unchecked, 1.9s Time] [2023-12-23 00:45:05,322 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 117 states. [2023-12-23 00:45:05,368 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 117 to 117. [2023-12-23 00:45:05,370 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 117 states, 70 states have (on average 1.4428571428571428) internal successors, (101), 70 states have internal predecessors, (101), 45 states have call successors, (45), 1 states have call predecessors, (45), 1 states have return successors, (45), 45 states have call predecessors, (45), 45 states have call successors, (45) [2023-12-23 00:45:05,373 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 117 states to 117 states and 191 transitions. [2023-12-23 00:45:05,374 INFO L78 Accepts]: Start accepts. Automaton has 117 states and 191 transitions. Word has length 278 [2023-12-23 00:45:05,374 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-23 00:45:05,375 INFO L495 AbstractCegarLoop]: Abstraction has 117 states and 191 transitions. [2023-12-23 00:45:05,375 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 2 states, 2 states have (on average 30.0) internal successors, (60), 2 states have internal predecessors, (60), 2 states have call successors, (45), 2 states have call predecessors, (45), 2 states have return successors, (45), 2 states have call predecessors, (45), 2 states have call successors, (45) [2023-12-23 00:45:05,375 INFO L276 IsEmpty]: Start isEmpty. Operand 117 states and 191 transitions. [2023-12-23 00:45:05,381 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 279 [2023-12-23 00:45:05,381 INFO L187 NwaCegarLoop]: Found error trace [2023-12-23 00:45:05,381 INFO L195 NwaCegarLoop]: trace histogram [45, 45, 45, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 00:45:05,412 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (2)] Forceful destruction successful, exit code 0 [2023-12-23 00:45:05,592 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 00:45:05,593 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-23 00:45:05,593 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-23 00:45:05,594 INFO L85 PathProgramCache]: Analyzing trace with hash -679168744, now seen corresponding path program 1 times [2023-12-23 00:45:05,595 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-12-23 00:45:05,595 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [893170339] [2023-12-23 00:45:05,595 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-23 00:45:05,595 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 00:45:05,595 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2023-12-23 00:45:05,599 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 00:45:05,602 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 00:45:06,991 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-23 00:45:07,051 INFO L262 TraceCheckSpWp]: Trace formula consists of 456 conjuncts, 5 conjunts are in the unsatisfiable core [2023-12-23 00:45:07,060 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-23 00:45:08,182 INFO L134 CoverageAnalysis]: Checked inductivity of 3960 backedges. 1718 proven. 39 refuted. 0 times theorem prover too weak. 2203 trivial. 0 not checked. [2023-12-23 00:45:08,182 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-12-23 00:45:09,026 INFO L134 CoverageAnalysis]: Checked inductivity of 3960 backedges. 93 proven. 39 refuted. 0 times theorem prover too weak. 3828 trivial. 0 not checked. [2023-12-23 00:45:09,027 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-12-23 00:45:09,027 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [893170339] [2023-12-23 00:45:09,027 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [893170339] provided 0 perfect and 2 imperfect interpolant sequences [2023-12-23 00:45:09,027 INFO L185 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2023-12-23 00:45:09,028 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [6, 6] total 8 [2023-12-23 00:45:09,028 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1433631183] [2023-12-23 00:45:09,028 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2023-12-23 00:45:09,032 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2023-12-23 00:45:09,033 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-12-23 00:45:09,034 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2023-12-23 00:45:09,034 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=19, Invalid=37, Unknown=0, NotChecked=0, Total=56 [2023-12-23 00:45:09,035 INFO L87 Difference]: Start difference. First operand 117 states and 191 transitions. Second operand has 8 states, 8 states have (on average 8.125) internal successors, (65), 8 states have internal predecessors, (65), 2 states have call successors, (58), 2 states have call predecessors, (58), 4 states have return successors, (59), 2 states have call predecessors, (59), 2 states have call successors, (59) [2023-12-23 00:45:15,091 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.12s for a HTC check with result UNKNOWN. Formula has sorts [Bool, FloatingPoint, RoundingMode, Real, BitVec], hasArrays=false, hasNonlinArith=false, quantifiers [] [2023-12-23 00:45:18,947 WARN L539 Checker$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 00:45:23,434 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.37s for a HTC check with result UNKNOWN. Formula has sorts [Bool, FloatingPoint, RoundingMode, Real, BitVec], hasArrays=false, hasNonlinArith=false, quantifiers [] [2023-12-23 00:45:27,454 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.02s for a HTC check with result UNKNOWN. Formula has sorts [Bool, FloatingPoint, RoundingMode, Real, BitVec], hasArrays=false, hasNonlinArith=false, quantifiers [] [2023-12-23 00:45:29,418 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.96s for a HTC check with result INVALID. Formula has sorts [Bool, FloatingPoint, RoundingMode, Real, BitVec], hasArrays=false, hasNonlinArith=false, quantifiers [] [2023-12-23 00:45:32,059 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.45s for a HTC check with result INVALID. Formula has sorts [Bool, FloatingPoint, RoundingMode, Real, BitVec], hasArrays=false, hasNonlinArith=false, quantifiers [] [2023-12-23 00:45:32,151 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-23 00:45:32,151 INFO L93 Difference]: Finished difference Result 239 states and 386 transitions. [2023-12-23 00:45:32,190 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2023-12-23 00:45:32,190 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 8 states have (on average 8.125) internal successors, (65), 8 states have internal predecessors, (65), 2 states have call successors, (58), 2 states have call predecessors, (58), 4 states have return successors, (59), 2 states have call predecessors, (59), 2 states have call successors, (59) Word has length 278 [2023-12-23 00:45:32,192 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-23 00:45:32,194 INFO L225 Difference]: With dead ends: 239 [2023-12-23 00:45:32,194 INFO L226 Difference]: Without dead ends: 123 [2023-12-23 00:45:32,195 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 561 GetRequests, 548 SyntacticMatches, 1 SemanticMatches, 12 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 10 ImplicationChecksByTransitivity, 0.6s TimeCoverageRelationStatistics Valid=68, Invalid=114, Unknown=0, NotChecked=0, Total=182 [2023-12-23 00:45:32,196 INFO L413 NwaCegarLoop]: 133 mSDtfsCounter, 357 mSDsluCounter, 174 mSDsCounter, 0 mSdLazyCounter, 239 mSolverCounterSat, 295 mSolverCounterUnsat, 3 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 22.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 358 SdHoareTripleChecker+Valid, 307 SdHoareTripleChecker+Invalid, 537 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 295 IncrementalHoareTripleChecker+Valid, 239 IncrementalHoareTripleChecker+Invalid, 3 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 22.7s IncrementalHoareTripleChecker+Time [2023-12-23 00:45:32,196 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [358 Valid, 307 Invalid, 537 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [295 Valid, 239 Invalid, 3 Unknown, 0 Unchecked, 22.7s Time] [2023-12-23 00:45:32,197 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 123 states. [2023-12-23 00:45:32,214 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 123 to 121. [2023-12-23 00:45:32,215 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 121 states, 73 states have (on average 1.3972602739726028) internal successors, (102), 73 states have internal predecessors, (102), 45 states have call successors, (45), 2 states have call predecessors, (45), 2 states have return successors, (45), 45 states have call predecessors, (45), 45 states have call successors, (45) [2023-12-23 00:45:32,216 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 121 states to 121 states and 192 transitions. [2023-12-23 00:45:32,216 INFO L78 Accepts]: Start accepts. Automaton has 121 states and 192 transitions. Word has length 278 [2023-12-23 00:45:32,218 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-23 00:45:32,218 INFO L495 AbstractCegarLoop]: Abstraction has 121 states and 192 transitions. [2023-12-23 00:45:32,219 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 8 states have (on average 8.125) internal successors, (65), 8 states have internal predecessors, (65), 2 states have call successors, (58), 2 states have call predecessors, (58), 4 states have return successors, (59), 2 states have call predecessors, (59), 2 states have call successors, (59) [2023-12-23 00:45:32,219 INFO L276 IsEmpty]: Start isEmpty. Operand 121 states and 192 transitions. [2023-12-23 00:45:32,223 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 281 [2023-12-23 00:45:32,223 INFO L187 NwaCegarLoop]: Found error trace [2023-12-23 00:45:32,223 INFO L195 NwaCegarLoop]: trace histogram [45, 45, 45, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 00:45:32,257 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (3)] Ended with exit code 0 [2023-12-23 00:45:32,436 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 00:45:32,437 INFO L420 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-23 00:45:32,437 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-23 00:45:32,437 INFO L85 PathProgramCache]: Analyzing trace with hash 364995841, now seen corresponding path program 1 times [2023-12-23 00:45:32,438 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-12-23 00:45:32,438 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [134800692] [2023-12-23 00:45:32,438 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-23 00:45:32,439 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 00:45:32,439 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2023-12-23 00:45:32,440 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 00:45:32,461 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 00:45:33,743 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-23 00:45:33,801 INFO L262 TraceCheckSpWp]: Trace formula consists of 458 conjuncts, 5 conjunts are in the unsatisfiable core [2023-12-23 00:45:33,807 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-23 00:45:34,703 INFO L134 CoverageAnalysis]: Checked inductivity of 3960 backedges. 1562 proven. 33 refuted. 0 times theorem prover too weak. 2365 trivial. 0 not checked. [2023-12-23 00:45:34,703 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-12-23 00:45:35,415 INFO L134 CoverageAnalysis]: Checked inductivity of 3960 backedges. 99 proven. 33 refuted. 0 times theorem prover too weak. 3828 trivial. 0 not checked. [2023-12-23 00:45:35,416 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-12-23 00:45:35,416 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [134800692] [2023-12-23 00:45:35,416 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [134800692] provided 0 perfect and 2 imperfect interpolant sequences [2023-12-23 00:45:35,416 INFO L185 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2023-12-23 00:45:35,416 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [6, 6] total 8 [2023-12-23 00:45:35,416 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [591252107] [2023-12-23 00:45:35,417 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2023-12-23 00:45:35,417 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2023-12-23 00:45:35,417 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-12-23 00:45:35,418 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2023-12-23 00:45:35,418 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=19, Invalid=37, Unknown=0, NotChecked=0, Total=56 [2023-12-23 00:45:35,419 INFO L87 Difference]: Start difference. First operand 121 states and 192 transitions. Second operand has 8 states, 8 states have (on average 8.375) internal successors, (67), 8 states have internal predecessors, (67), 2 states have call successors, (56), 2 states have call predecessors, (56), 4 states have return successors, (57), 2 states have call predecessors, (57), 2 states have call successors, (57) [2023-12-23 00:45:41,541 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.13s for a HTC check with result UNKNOWN. Formula has sorts [Bool, FloatingPoint, RoundingMode, Real, BitVec], hasArrays=false, hasNonlinArith=false, quantifiers [] [2023-12-23 00:45:45,549 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.01s for a HTC check with result UNKNOWN. Formula has sorts [Bool, FloatingPoint, RoundingMode, Real, BitVec], hasArrays=false, hasNonlinArith=false, quantifiers [] [2023-12-23 00:45:47,408 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.86s for a HTC check with result INVALID. Formula has sorts [Bool, FloatingPoint, RoundingMode, Real, BitVec], hasArrays=false, hasNonlinArith=false, quantifiers [] [2023-12-23 00:45:51,864 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.40s for a HTC check with result UNKNOWN. Formula has sorts [Bool, FloatingPoint, RoundingMode, Real, BitVec], hasArrays=false, hasNonlinArith=false, quantifiers [] [2023-12-23 00:45:55,867 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.00s for a HTC check with result UNKNOWN. Formula has sorts [Bool, FloatingPoint, RoundingMode, Real, BitVec], hasArrays=false, hasNonlinArith=false, quantifiers [] [2023-12-23 00:45:59,872 WARN L539 Checker$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 00:46:01,209 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.34s for a HTC check with result INVALID. Formula has sorts [Bool, FloatingPoint, RoundingMode, Real, BitVec], hasArrays=false, hasNonlinArith=false, quantifiers [] [2023-12-23 00:46:03,471 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.77s for a HTC check with result INVALID. Formula has sorts [Bool, FloatingPoint, RoundingMode, Real, BitVec], hasArrays=false, hasNonlinArith=false, quantifiers [] [2023-12-23 00:46:10,042 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.13s for a HTC check with result UNKNOWN. Formula has sorts [Bool, FloatingPoint, RoundingMode, Real, BitVec], hasArrays=false, hasNonlinArith=false, quantifiers [] [2023-12-23 00:46:10,043 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-23 00:46:10,044 INFO L93 Difference]: Finished difference Result 432 states and 675 transitions. [2023-12-23 00:46:10,092 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 16 states. [2023-12-23 00:46:10,093 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 8 states have (on average 8.375) internal successors, (67), 8 states have internal predecessors, (67), 2 states have call successors, (56), 2 states have call predecessors, (56), 4 states have return successors, (57), 2 states have call predecessors, (57), 2 states have call successors, (57) Word has length 280 [2023-12-23 00:46:10,094 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-23 00:46:10,098 INFO L225 Difference]: With dead ends: 432 [2023-12-23 00:46:10,099 INFO L226 Difference]: Without dead ends: 312 [2023-12-23 00:46:10,101 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 570 GetRequests, 552 SyntacticMatches, 1 SemanticMatches, 17 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 47 ImplicationChecksByTransitivity, 0.7s TimeCoverageRelationStatistics Valid=112, Invalid=230, Unknown=0, NotChecked=0, Total=342 [2023-12-23 00:46:10,102 INFO L413 NwaCegarLoop]: 241 mSDtfsCounter, 467 mSDsluCounter, 421 mSDsCounter, 0 mSdLazyCounter, 653 mSolverCounterSat, 110 mSolverCounterUnsat, 6 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 33.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 534 SdHoareTripleChecker+Valid, 662 SdHoareTripleChecker+Invalid, 769 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 110 IncrementalHoareTripleChecker+Valid, 653 IncrementalHoareTripleChecker+Invalid, 6 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 34.0s IncrementalHoareTripleChecker+Time [2023-12-23 00:46:10,102 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [534 Valid, 662 Invalid, 769 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [110 Valid, 653 Invalid, 6 Unknown, 0 Unchecked, 34.0s Time] [2023-12-23 00:46:10,103 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 312 states. [2023-12-23 00:46:10,161 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 312 to 303. [2023-12-23 00:46:10,162 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 303 states, 172 states have (on average 1.3313953488372092) internal successors, (229), 173 states have internal predecessors, (229), 123 states have call successors, (123), 7 states have call predecessors, (123), 7 states have return successors, (123), 122 states have call predecessors, (123), 123 states have call successors, (123) [2023-12-23 00:46:10,165 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 303 states to 303 states and 475 transitions. [2023-12-23 00:46:10,165 INFO L78 Accepts]: Start accepts. Automaton has 303 states and 475 transitions. Word has length 280 [2023-12-23 00:46:10,166 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-23 00:46:10,166 INFO L495 AbstractCegarLoop]: Abstraction has 303 states and 475 transitions. [2023-12-23 00:46:10,166 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 8 states have (on average 8.375) internal successors, (67), 8 states have internal predecessors, (67), 2 states have call successors, (56), 2 states have call predecessors, (56), 4 states have return successors, (57), 2 states have call predecessors, (57), 2 states have call successors, (57) [2023-12-23 00:46:10,167 INFO L276 IsEmpty]: Start isEmpty. Operand 303 states and 475 transitions. [2023-12-23 00:46:10,171 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 281 [2023-12-23 00:46:10,171 INFO L187 NwaCegarLoop]: Found error trace [2023-12-23 00:46:10,171 INFO L195 NwaCegarLoop]: trace histogram [45, 45, 45, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 00:46:10,215 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 00:46:10,380 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 00:46:10,381 INFO L420 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-23 00:46:10,381 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-23 00:46:10,382 INFO L85 PathProgramCache]: Analyzing trace with hash -914867837, now seen corresponding path program 1 times [2023-12-23 00:46:10,382 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-12-23 00:46:10,382 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [924727765] [2023-12-23 00:46:10,382 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-23 00:46:10,383 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 00:46:10,383 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2023-12-23 00:46:10,384 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 00:46:10,386 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 00:46:11,672 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-23 00:46:11,731 INFO L262 TraceCheckSpWp]: Trace formula consists of 458 conjuncts, 2 conjunts are in the unsatisfiable core [2023-12-23 00:46:11,736 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-23 00:46:11,775 INFO L134 CoverageAnalysis]: Checked inductivity of 3960 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 3960 trivial. 0 not checked. [2023-12-23 00:46:11,775 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-12-23 00:46:11,775 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-12-23 00:46:11,776 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [924727765] [2023-12-23 00:46:11,776 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [924727765] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-23 00:46:11,776 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-23 00:46:11,776 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2023-12-23 00:46:11,776 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1856208137] [2023-12-23 00:46:11,776 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-23 00:46:11,777 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-12-23 00:46:11,777 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-12-23 00:46:11,778 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-12-23 00:46:11,778 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-12-23 00:46:11,778 INFO L87 Difference]: Start difference. First operand 303 states and 475 transitions. Second operand has 3 states, 3 states have (on average 19.333333333333332) internal successors, (58), 3 states have internal predecessors, (58), 1 states have call successors, (45), 1 states have call predecessors, (45), 1 states have return successors, (45), 1 states have call predecessors, (45), 1 states have call successors, (45) [2023-12-23 00:46:13,304 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.47s for a HTC check with result INVALID. Formula has sorts [Bool, FloatingPoint, RoundingMode, Real, BitVec], hasArrays=false, hasNonlinArith=false, quantifiers [] [2023-12-23 00:46:13,439 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-23 00:46:13,439 INFO L93 Difference]: Finished difference Result 614 states and 964 transitions. [2023-12-23 00:46:13,440 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-12-23 00:46:13,440 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 19.333333333333332) internal successors, (58), 3 states have internal predecessors, (58), 1 states have call successors, (45), 1 states have call predecessors, (45), 1 states have return successors, (45), 1 states have call predecessors, (45), 1 states have call successors, (45) Word has length 280 [2023-12-23 00:46:13,441 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-23 00:46:13,446 INFO L225 Difference]: With dead ends: 614 [2023-12-23 00:46:13,446 INFO L226 Difference]: Without dead ends: 368 [2023-12-23 00:46:13,447 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 279 GetRequests, 278 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 00:46:13,449 INFO L413 NwaCegarLoop]: 367 mSDtfsCounter, 185 mSDsluCounter, 182 mSDsCounter, 0 mSdLazyCounter, 13 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 185 SdHoareTripleChecker+Valid, 549 SdHoareTripleChecker+Invalid, 13 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 13 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.6s IncrementalHoareTripleChecker+Time [2023-12-23 00:46:13,450 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [185 Valid, 549 Invalid, 13 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 13 Invalid, 0 Unknown, 0 Unchecked, 1.6s Time] [2023-12-23 00:46:13,454 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 368 states. [2023-12-23 00:46:13,511 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 368 to 330. [2023-12-23 00:46:13,512 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 330 states, 185 states have (on average 1.3027027027027027) internal successors, (241), 186 states have internal predecessors, (241), 135 states have call successors, (135), 9 states have call predecessors, (135), 9 states have return successors, (135), 134 states have call predecessors, (135), 135 states have call successors, (135) [2023-12-23 00:46:13,515 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 330 states to 330 states and 511 transitions. [2023-12-23 00:46:13,515 INFO L78 Accepts]: Start accepts. Automaton has 330 states and 511 transitions. Word has length 280 [2023-12-23 00:46:13,517 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-23 00:46:13,517 INFO L495 AbstractCegarLoop]: Abstraction has 330 states and 511 transitions. [2023-12-23 00:46:13,517 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 19.333333333333332) internal successors, (58), 3 states have internal predecessors, (58), 1 states have call successors, (45), 1 states have call predecessors, (45), 1 states have return successors, (45), 1 states have call predecessors, (45), 1 states have call successors, (45) [2023-12-23 00:46:13,518 INFO L276 IsEmpty]: Start isEmpty. Operand 330 states and 511 transitions. [2023-12-23 00:46:13,521 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 282 [2023-12-23 00:46:13,521 INFO L187 NwaCegarLoop]: Found error trace [2023-12-23 00:46:13,521 INFO L195 NwaCegarLoop]: trace histogram [45, 45, 45, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 00:46:13,565 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 00:46:13,736 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 5 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2023-12-23 00:46:13,737 INFO L420 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-23 00:46:13,737 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-23 00:46:13,737 INFO L85 PathProgramCache]: Analyzing trace with hash 149005619, now seen corresponding path program 1 times [2023-12-23 00:46:13,738 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-12-23 00:46:13,738 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1316843234] [2023-12-23 00:46:13,738 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-23 00:46:13,738 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 00:46:13,738 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2023-12-23 00:46:13,739 INFO L229 MonitoredProcess]: Starting monitored process 6 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2023-12-23 00:46:13,740 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (6)] Waiting until timeout for monitored process [2023-12-23 00:46:15,014 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-23 00:46:15,074 INFO L262 TraceCheckSpWp]: Trace formula consists of 459 conjuncts, 2 conjunts are in the unsatisfiable core [2023-12-23 00:46:15,078 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-23 00:46:15,184 INFO L134 CoverageAnalysis]: Checked inductivity of 3960 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 3960 trivial. 0 not checked. [2023-12-23 00:46:15,184 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-12-23 00:46:15,184 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-12-23 00:46:15,184 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1316843234] [2023-12-23 00:46:15,184 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1316843234] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-23 00:46:15,184 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-23 00:46:15,185 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2023-12-23 00:46:15,185 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1818611282] [2023-12-23 00:46:15,185 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-23 00:46:15,185 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-12-23 00:46:15,185 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-12-23 00:46:15,186 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-12-23 00:46:15,186 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-12-23 00:46:15,186 INFO L87 Difference]: Start difference. First operand 330 states and 511 transitions. Second operand has 3 states, 3 states have (on average 19.666666666666668) internal successors, (59), 3 states have internal predecessors, (59), 1 states have call successors, (45), 1 states have call predecessors, (45), 1 states have return successors, (45), 1 states have call predecessors, (45), 1 states have call successors, (45) [2023-12-23 00:46:18,017 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.83s for a HTC check with result INVALID. Formula has sorts [Bool, FloatingPoint, RoundingMode, Real, BitVec], hasArrays=false, hasNonlinArith=false, quantifiers [] [2023-12-23 00:46:18,132 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-23 00:46:18,132 INFO L93 Difference]: Finished difference Result 710 states and 1108 transitions. [2023-12-23 00:46:18,132 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-12-23 00:46:18,133 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 19.666666666666668) internal successors, (59), 3 states have internal predecessors, (59), 1 states have call successors, (45), 1 states have call predecessors, (45), 1 states have return successors, (45), 1 states have call predecessors, (45), 1 states have call successors, (45) Word has length 281 [2023-12-23 00:46:18,137 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-23 00:46:18,141 INFO L225 Difference]: With dead ends: 710 [2023-12-23 00:46:18,141 INFO L226 Difference]: Without dead ends: 464 [2023-12-23 00:46:18,142 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 280 GetRequests, 279 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 00:46:18,143 INFO L413 NwaCegarLoop]: 215 mSDtfsCounter, 95 mSDsluCounter, 173 mSDsCounter, 0 mSdLazyCounter, 16 mSolverCounterSat, 5 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.8s Time, 0 mProtectedPredicate, 0 mProtectedAction, 95 SdHoareTripleChecker+Valid, 388 SdHoareTripleChecker+Invalid, 21 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 5 IncrementalHoareTripleChecker+Valid, 16 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.9s IncrementalHoareTripleChecker+Time [2023-12-23 00:46:18,148 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [95 Valid, 388 Invalid, 21 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [5 Valid, 16 Invalid, 0 Unknown, 0 Unchecked, 2.9s Time] [2023-12-23 00:46:18,149 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 464 states. [2023-12-23 00:46:18,190 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 464 to 456. [2023-12-23 00:46:18,191 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 456 states, 278 states have (on average 1.3669064748201438) internal successors, (380), 281 states have internal predecessors, (380), 165 states have call successors, (165), 12 states have call predecessors, (165), 12 states have return successors, (165), 162 states have call predecessors, (165), 165 states have call successors, (165) [2023-12-23 00:46:18,194 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 456 states to 456 states and 710 transitions. [2023-12-23 00:46:18,195 INFO L78 Accepts]: Start accepts. Automaton has 456 states and 710 transitions. Word has length 281 [2023-12-23 00:46:18,196 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-23 00:46:18,196 INFO L495 AbstractCegarLoop]: Abstraction has 456 states and 710 transitions. [2023-12-23 00:46:18,196 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 19.666666666666668) internal successors, (59), 3 states have internal predecessors, (59), 1 states have call successors, (45), 1 states have call predecessors, (45), 1 states have return successors, (45), 1 states have call predecessors, (45), 1 states have call successors, (45) [2023-12-23 00:46:18,196 INFO L276 IsEmpty]: Start isEmpty. Operand 456 states and 710 transitions. [2023-12-23 00:46:18,200 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 282 [2023-12-23 00:46:18,200 INFO L187 NwaCegarLoop]: Found error trace [2023-12-23 00:46:18,200 INFO L195 NwaCegarLoop]: trace histogram [45, 45, 45, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 00:46:18,237 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (6)] Forceful destruction successful, exit code 0 [2023-12-23 00:46:18,415 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 6 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2023-12-23 00:46:18,416 INFO L420 AbstractCegarLoop]: === Iteration 6 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-23 00:46:18,416 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-23 00:46:18,416 INFO L85 PathProgramCache]: Analyzing trace with hash -1439342283, now seen corresponding path program 1 times [2023-12-23 00:46:18,417 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-12-23 00:46:18,417 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [635822049] [2023-12-23 00:46:18,417 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-23 00:46:18,417 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 00:46:18,417 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2023-12-23 00:46:18,418 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 00:46:18,419 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 00:46:19,701 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-23 00:46:19,762 INFO L262 TraceCheckSpWp]: Trace formula consists of 458 conjuncts, 2 conjunts are in the unsatisfiable core [2023-12-23 00:46:19,766 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-23 00:46:19,904 INFO L134 CoverageAnalysis]: Checked inductivity of 3960 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 3960 trivial. 0 not checked. [2023-12-23 00:46:19,904 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-12-23 00:46:19,904 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-12-23 00:46:19,905 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [635822049] [2023-12-23 00:46:19,905 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [635822049] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-23 00:46:19,905 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-23 00:46:19,905 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2023-12-23 00:46:19,905 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [257017472] [2023-12-23 00:46:19,905 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-23 00:46:19,906 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-12-23 00:46:19,906 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-12-23 00:46:19,906 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-12-23 00:46:19,907 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-12-23 00:46:19,907 INFO L87 Difference]: Start difference. First operand 456 states and 710 transitions. Second operand has 3 states, 3 states have (on average 19.666666666666668) internal successors, (59), 3 states have internal predecessors, (59), 1 states have call successors, (45), 1 states have call predecessors, (45), 1 states have return successors, (45), 1 states have call predecessors, (45), 1 states have call successors, (45) [2023-12-23 00:46:22,737 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.15s for a HTC check with result INVALID. Formula has sorts [Bool, FloatingPoint, RoundingMode, Real, BitVec], hasArrays=false, hasNonlinArith=false, quantifiers [] [2023-12-23 00:46:22,841 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-23 00:46:22,841 INFO L93 Difference]: Finished difference Result 836 states and 1300 transitions. [2023-12-23 00:46:22,842 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-12-23 00:46:22,842 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 19.666666666666668) internal successors, (59), 3 states have internal predecessors, (59), 1 states have call successors, (45), 1 states have call predecessors, (45), 1 states have return successors, (45), 1 states have call predecessors, (45), 1 states have call successors, (45) Word has length 281 [2023-12-23 00:46:22,843 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-23 00:46:22,845 INFO L225 Difference]: With dead ends: 836 [2023-12-23 00:46:22,845 INFO L226 Difference]: Without dead ends: 468 [2023-12-23 00:46:22,847 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 280 GetRequests, 279 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 00:46:22,847 INFO L413 NwaCegarLoop]: 226 mSDtfsCounter, 93 mSDsluCounter, 175 mSDsCounter, 0 mSdLazyCounter, 19 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.8s Time, 0 mProtectedPredicate, 0 mProtectedAction, 93 SdHoareTripleChecker+Valid, 401 SdHoareTripleChecker+Invalid, 21 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 19 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.9s IncrementalHoareTripleChecker+Time [2023-12-23 00:46:22,847 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [93 Valid, 401 Invalid, 21 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 19 Invalid, 0 Unknown, 0 Unchecked, 2.9s Time] [2023-12-23 00:46:22,848 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 468 states. [2023-12-23 00:46:22,875 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 468 to 366. [2023-12-23 00:46:22,876 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 366 states, 218 states have (on average 1.3027522935779816) internal successors, (284), 219 states have internal predecessors, (284), 135 states have call successors, (135), 12 states have call predecessors, (135), 12 states have return successors, (135), 134 states have call predecessors, (135), 135 states have call successors, (135) [2023-12-23 00:46:22,878 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 366 states to 366 states and 554 transitions. [2023-12-23 00:46:22,878 INFO L78 Accepts]: Start accepts. Automaton has 366 states and 554 transitions. Word has length 281 [2023-12-23 00:46:22,879 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-23 00:46:22,879 INFO L495 AbstractCegarLoop]: Abstraction has 366 states and 554 transitions. [2023-12-23 00:46:22,879 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 19.666666666666668) internal successors, (59), 3 states have internal predecessors, (59), 1 states have call successors, (45), 1 states have call predecessors, (45), 1 states have return successors, (45), 1 states have call predecessors, (45), 1 states have call successors, (45) [2023-12-23 00:46:22,879 INFO L276 IsEmpty]: Start isEmpty. Operand 366 states and 554 transitions. [2023-12-23 00:46:22,881 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 282 [2023-12-23 00:46:22,881 INFO L187 NwaCegarLoop]: Found error trace [2023-12-23 00:46:22,881 INFO L195 NwaCegarLoop]: trace histogram [45, 45, 45, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 00:46:22,920 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 (7)] Ended with exit code 0 [2023-12-23 00:46:23,108 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 00:46:23,109 INFO L420 AbstractCegarLoop]: === Iteration 7 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-23 00:46:23,109 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-23 00:46:23,109 INFO L85 PathProgramCache]: Analyzing trace with hash -823890918, now seen corresponding path program 1 times [2023-12-23 00:46:23,109 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-12-23 00:46:23,110 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [573000593] [2023-12-23 00:46:23,110 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-23 00:46:23,110 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 00:46:23,110 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2023-12-23 00:46:23,111 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 00:46:23,112 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 00:46:24,385 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-23 00:46:24,442 INFO L262 TraceCheckSpWp]: Trace formula consists of 460 conjuncts, 4 conjunts are in the unsatisfiable core [2023-12-23 00:46:24,447 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-23 00:46:26,672 INFO L134 CoverageAnalysis]: Checked inductivity of 3960 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 3960 trivial. 0 not checked. [2023-12-23 00:46:26,673 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-12-23 00:46:26,673 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-12-23 00:46:26,673 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [573000593] [2023-12-23 00:46:26,673 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [573000593] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-23 00:46:26,673 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-23 00:46:26,673 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2023-12-23 00:46:26,673 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2085395921] [2023-12-23 00:46:26,673 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-23 00:46:26,674 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2023-12-23 00:46:26,674 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-12-23 00:46:26,675 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2023-12-23 00:46:26,675 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2023-12-23 00:46:26,675 INFO L87 Difference]: Start difference. First operand 366 states and 554 transitions. Second operand has 5 states, 5 states have (on average 11.8) internal successors, (59), 4 states have internal predecessors, (59), 1 states have call successors, (45), 1 states have call predecessors, (45), 1 states have return successors, (45), 1 states have call predecessors, (45), 1 states have call successors, (45) [2023-12-23 00:46:30,522 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.15s for a HTC check with result INVALID. Formula has sorts [Bool, FloatingPoint, RoundingMode, Real, BitVec], hasArrays=false, hasNonlinArith=false, quantifiers [0] [2023-12-23 00:46:30,665 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-23 00:46:30,665 INFO L93 Difference]: Finished difference Result 644 states and 979 transitions. [2023-12-23 00:46:30,707 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2023-12-23 00:46:30,707 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 11.8) internal successors, (59), 4 states have internal predecessors, (59), 1 states have call successors, (45), 1 states have call predecessors, (45), 1 states have return successors, (45), 1 states have call predecessors, (45), 1 states have call successors, (45) Word has length 281 [2023-12-23 00:46:30,708 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-23 00:46:30,710 INFO L225 Difference]: With dead ends: 644 [2023-12-23 00:46:30,710 INFO L226 Difference]: Without dead ends: 366 [2023-12-23 00:46:30,711 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 282 GetRequests, 277 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=18, Invalid=24, Unknown=0, NotChecked=0, Total=42 [2023-12-23 00:46:30,712 INFO L413 NwaCegarLoop]: 181 mSDtfsCounter, 147 mSDsluCounter, 73 mSDsCounter, 0 mSdLazyCounter, 101 mSolverCounterSat, 92 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 3.8s Time, 0 mProtectedPredicate, 0 mProtectedAction, 147 SdHoareTripleChecker+Valid, 254 SdHoareTripleChecker+Invalid, 193 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 92 IncrementalHoareTripleChecker+Valid, 101 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 3.8s IncrementalHoareTripleChecker+Time [2023-12-23 00:46:30,712 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [147 Valid, 254 Invalid, 193 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [92 Valid, 101 Invalid, 0 Unknown, 0 Unchecked, 3.8s Time] [2023-12-23 00:46:30,713 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 366 states. [2023-12-23 00:46:30,742 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 366 to 366. [2023-12-23 00:46:30,743 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 366 states, 218 states have (on average 1.2935779816513762) internal successors, (282), 219 states have internal predecessors, (282), 135 states have call successors, (135), 12 states have call predecessors, (135), 12 states have return successors, (135), 134 states have call predecessors, (135), 135 states have call successors, (135) [2023-12-23 00:46:30,745 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 366 states to 366 states and 552 transitions. [2023-12-23 00:46:30,746 INFO L78 Accepts]: Start accepts. Automaton has 366 states and 552 transitions. Word has length 281 [2023-12-23 00:46:30,747 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-23 00:46:30,747 INFO L495 AbstractCegarLoop]: Abstraction has 366 states and 552 transitions. [2023-12-23 00:46:30,747 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 11.8) internal successors, (59), 4 states have internal predecessors, (59), 1 states have call successors, (45), 1 states have call predecessors, (45), 1 states have return successors, (45), 1 states have call predecessors, (45), 1 states have call successors, (45) [2023-12-23 00:46:30,748 INFO L276 IsEmpty]: Start isEmpty. Operand 366 states and 552 transitions. [2023-12-23 00:46:30,749 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 283 [2023-12-23 00:46:30,749 INFO L187 NwaCegarLoop]: Found error trace [2023-12-23 00:46:30,749 INFO L195 NwaCegarLoop]: trace histogram [45, 45, 45, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 00:46:30,794 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (8)] Forceful destruction successful, exit code 0 [2023-12-23 00:46:30,968 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 8 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2023-12-23 00:46:30,969 INFO L420 AbstractCegarLoop]: === Iteration 8 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-23 00:46:30,969 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-23 00:46:30,970 INFO L85 PathProgramCache]: Analyzing trace with hash -243073135, now seen corresponding path program 1 times [2023-12-23 00:46:30,970 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-12-23 00:46:30,970 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [146138411] [2023-12-23 00:46:30,970 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-23 00:46:30,971 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 00:46:30,971 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2023-12-23 00:46:30,972 INFO L229 MonitoredProcess]: Starting monitored process 9 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2023-12-23 00:46:31,003 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (9)] Waiting until timeout for monitored process [2023-12-23 00:46:32,347 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-23 00:46:32,406 INFO L262 TraceCheckSpWp]: Trace formula consists of 462 conjuncts, 10 conjunts are in the unsatisfiable core [2023-12-23 00:46:32,412 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-23 00:46:39,105 INFO L134 CoverageAnalysis]: Checked inductivity of 3960 backedges. 1604 proven. 96 refuted. 0 times theorem prover too weak. 2260 trivial. 0 not checked. [2023-12-23 00:46:39,105 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-12-23 00:46:41,284 INFO L134 CoverageAnalysis]: Checked inductivity of 3960 backedges. 36 proven. 96 refuted. 0 times theorem prover too weak. 3828 trivial. 0 not checked. [2023-12-23 00:46:41,284 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-12-23 00:46:41,284 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [146138411] [2023-12-23 00:46:41,284 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [146138411] provided 0 perfect and 2 imperfect interpolant sequences [2023-12-23 00:46:41,284 INFO L185 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2023-12-23 00:46:41,284 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [8, 9] total 14 [2023-12-23 00:46:41,285 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1540102663] [2023-12-23 00:46:41,285 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2023-12-23 00:46:41,285 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 14 states [2023-12-23 00:46:41,285 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-12-23 00:46:41,286 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 14 interpolants. [2023-12-23 00:46:41,286 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=47, Invalid=135, Unknown=0, NotChecked=0, Total=182 [2023-12-23 00:46:41,286 INFO L87 Difference]: Start difference. First operand 366 states and 552 transitions. Second operand has 14 states, 14 states have (on average 8.571428571428571) internal successors, (120), 14 states have internal predecessors, (120), 4 states have call successors, (90), 3 states have call predecessors, (90), 5 states have return successors, (90), 4 states have call predecessors, (90), 4 states have call successors, (90) [2023-12-23 00:46:47,671 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.14s for a HTC check with result INVALID. Formula has sorts [Bool, FloatingPoint, RoundingMode, Real, BitVec], hasArrays=false, hasNonlinArith=false, quantifiers [] [2023-12-23 00:46:52,015 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.75s for a HTC check with result INVALID. Formula has sorts [Bool, FloatingPoint, RoundingMode, Real, BitVec], hasArrays=false, hasNonlinArith=false, quantifiers [] [2023-12-23 00:46:52,241 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-23 00:46:52,242 INFO L93 Difference]: Finished difference Result 898 states and 1364 transitions. [2023-12-23 00:46:52,242 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 22 states. [2023-12-23 00:46:52,243 INFO L78 Accepts]: Start accepts. Automaton has has 14 states, 14 states have (on average 8.571428571428571) internal successors, (120), 14 states have internal predecessors, (120), 4 states have call successors, (90), 3 states have call predecessors, (90), 5 states have return successors, (90), 4 states have call predecessors, (90), 4 states have call successors, (90) Word has length 282 [2023-12-23 00:46:52,243 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-23 00:46:52,246 INFO L225 Difference]: With dead ends: 898 [2023-12-23 00:46:52,246 INFO L226 Difference]: Without dead ends: 620 [2023-12-23 00:46:52,248 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 579 GetRequests, 551 SyntacticMatches, 1 SemanticMatches, 27 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 134 ImplicationChecksByTransitivity, 1.7s TimeCoverageRelationStatistics Valid=228, Invalid=584, Unknown=0, NotChecked=0, Total=812 [2023-12-23 00:46:52,248 INFO L413 NwaCegarLoop]: 160 mSDtfsCounter, 663 mSDsluCounter, 621 mSDsCounter, 0 mSdLazyCounter, 750 mSolverCounterSat, 350 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 9.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 706 SdHoareTripleChecker+Valid, 781 SdHoareTripleChecker+Invalid, 1100 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 350 IncrementalHoareTripleChecker+Valid, 750 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 9.8s IncrementalHoareTripleChecker+Time [2023-12-23 00:46:52,248 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [706 Valid, 781 Invalid, 1100 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [350 Valid, 750 Invalid, 0 Unknown, 0 Unchecked, 9.8s Time] [2023-12-23 00:46:52,249 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 620 states. [2023-12-23 00:46:52,303 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 620 to 504. [2023-12-23 00:46:52,304 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 504 states, 331 states have (on average 1.3595166163141994) internal successors, (450), 333 states have internal predecessors, (450), 157 states have call successors, (157), 15 states have call predecessors, (157), 15 states have return successors, (157), 155 states have call predecessors, (157), 157 states have call successors, (157) [2023-12-23 00:46:52,307 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 504 states to 504 states and 764 transitions. [2023-12-23 00:46:52,307 INFO L78 Accepts]: Start accepts. Automaton has 504 states and 764 transitions. Word has length 282 [2023-12-23 00:46:52,308 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-23 00:46:52,308 INFO L495 AbstractCegarLoop]: Abstraction has 504 states and 764 transitions. [2023-12-23 00:46:52,308 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 14 states, 14 states have (on average 8.571428571428571) internal successors, (120), 14 states have internal predecessors, (120), 4 states have call successors, (90), 3 states have call predecessors, (90), 5 states have return successors, (90), 4 states have call predecessors, (90), 4 states have call successors, (90) [2023-12-23 00:46:52,308 INFO L276 IsEmpty]: Start isEmpty. Operand 504 states and 764 transitions. [2023-12-23 00:46:52,310 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 283 [2023-12-23 00:46:52,310 INFO L187 NwaCegarLoop]: Found error trace [2023-12-23 00:46:52,310 INFO L195 NwaCegarLoop]: trace histogram [45, 45, 45, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 00:46:52,356 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (9)] Forceful destruction successful, exit code 0 [2023-12-23 00:46:52,532 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 9 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2023-12-23 00:46:52,533 INFO L420 AbstractCegarLoop]: === Iteration 9 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-23 00:46:52,533 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-23 00:46:52,533 INFO L85 PathProgramCache]: Analyzing trace with hash -995161459, now seen corresponding path program 1 times [2023-12-23 00:46:52,534 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-12-23 00:46:52,534 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [937646049] [2023-12-23 00:46:52,534 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-23 00:46:52,534 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 00:46:52,534 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2023-12-23 00:46:52,535 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 00:46:52,567 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 00:46:53,912 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-23 00:46:53,971 INFO L262 TraceCheckSpWp]: Trace formula consists of 461 conjuncts, 27 conjunts are in the unsatisfiable core [2023-12-23 00:46:53,979 INFO L285 TraceCheckSpWp]: Computing forward predicates...