/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-4.i -------------------------------------------------------------------------------- This is Ultimate 0.2.4-tmp.fs.bitabs-eval-d9c3e40-m [2023-12-23 00:07:42,602 INFO L188 SettingsManager]: Resetting all preferences to default values... [2023-12-23 00:07:42,652 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 00:07:42,656 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2023-12-23 00:07:42,656 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2023-12-23 00:07:42,676 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2023-12-23 00:07:42,677 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2023-12-23 00:07:42,677 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2023-12-23 00:07:42,678 INFO L151 SettingsManager]: Preferences of Boogie Preprocessor differ from their defaults: [2023-12-23 00:07:42,678 INFO L153 SettingsManager]: * Use memory slicer=true [2023-12-23 00:07:42,678 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2023-12-23 00:07:42,678 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2023-12-23 00:07:42,679 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2023-12-23 00:07:42,679 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2023-12-23 00:07:42,679 INFO L153 SettingsManager]: * Use SBE=true [2023-12-23 00:07:42,686 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2023-12-23 00:07:42,687 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2023-12-23 00:07:42,690 INFO L153 SettingsManager]: * sizeof long=4 [2023-12-23 00:07:42,690 INFO L153 SettingsManager]: * sizeof POINTER=4 [2023-12-23 00:07:42,690 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2023-12-23 00:07:42,691 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2023-12-23 00:07:42,692 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2023-12-23 00:07:42,692 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2023-12-23 00:07:42,692 INFO L153 SettingsManager]: * Adapt memory model on pointer casts if necessary=true [2023-12-23 00:07:42,692 INFO L153 SettingsManager]: * Use bitvectors instead of ints=true [2023-12-23 00:07:42,693 INFO L153 SettingsManager]: * Allow undefined functions=false [2023-12-23 00:07:42,693 INFO L153 SettingsManager]: * Memory model=HoenickeLindenmann_4ByteResolution [2023-12-23 00:07:42,693 INFO L153 SettingsManager]: * sizeof long double=12 [2023-12-23 00:07:42,693 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2023-12-23 00:07:42,693 INFO L153 SettingsManager]: * Use constant arrays=true [2023-12-23 00:07:42,694 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2023-12-23 00:07:42,694 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2023-12-23 00:07:42,695 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2023-12-23 00:07:42,695 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2023-12-23 00:07:42,695 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2023-12-23 00:07:42,695 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2023-12-23 00:07:42,695 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2023-12-23 00:07:42,695 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2023-12-23 00:07:42,696 INFO L153 SettingsManager]: * Trace refinement strategy=WOLF [2023-12-23 00:07:42,696 INFO L153 SettingsManager]: * Command for external solver=cvc4 --incremental --print-success --lang smt [2023-12-23 00:07:42,696 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2023-12-23 00:07:42,696 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2023-12-23 00:07:42,696 INFO L153 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2023-12-23 00:07:42,697 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2023-12-23 00:07:42,697 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2023-12-23 00:07:42,697 INFO L153 SettingsManager]: * Logic for external solver=AUFBV [2023-12-23 00:07:42,697 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release [2023-12-23 00:07:42,923 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2023-12-23 00:07:42,948 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2023-12-23 00:07:42,950 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2023-12-23 00:07:42,951 INFO L270 PluginConnector]: Initializing CDTParser... [2023-12-23 00:07:42,951 INFO L274 PluginConnector]: CDTParser initialized [2023-12-23 00:07:42,954 INFO L431 ainManager$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-4.i [2023-12-23 00:07:44,239 INFO L533 CDTParser]: Created temporary CDT project at NULL [2023-12-23 00:07:44,495 INFO L384 CDTParser]: Found 1 translation units. [2023-12-23 00:07:44,495 INFO L180 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/hardness-nfm22/hardness_fillercode_fillercodesize_ps-cn-100_file-4.i [2023-12-23 00:07:44,512 INFO L427 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/e4408d5de/cc4f01c856344b57b3472c0e3d2de8c8/FLAG788ef74e8 [2023-12-23 00:07:44,527 INFO L435 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/e4408d5de/cc4f01c856344b57b3472c0e3d2de8c8 [2023-12-23 00:07:44,530 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2023-12-23 00:07:44,531 INFO L133 ToolchainWalker]: Walking toolchain with 5 elements. [2023-12-23 00:07:44,534 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2023-12-23 00:07:44,534 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2023-12-23 00:07:44,539 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2023-12-23 00:07:44,540 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 23.12 12:07:44" (1/1) ... [2023-12-23 00:07:44,540 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@e673cf4 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.12 12:07:44, skipping insertion in model container [2023-12-23 00:07:44,541 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 23.12 12:07:44" (1/1) ... [2023-12-23 00:07:44,579 INFO L177 MainTranslator]: Built tables and reachable declarations [2023-12-23 00:07:44,722 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-4.i[915,928] [2023-12-23 00:07:44,798 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-12-23 00:07:44,818 INFO L202 MainTranslator]: Completed pre-run [2023-12-23 00:07:44,827 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-4.i[915,928] [2023-12-23 00:07:44,891 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-12-23 00:07:44,912 INFO L206 MainTranslator]: Completed translation [2023-12-23 00:07:44,912 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.12 12:07:44 WrapperNode [2023-12-23 00:07:44,912 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2023-12-23 00:07:44,913 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2023-12-23 00:07:44,913 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2023-12-23 00:07:44,913 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2023-12-23 00:07:44,918 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.12 12:07:44" (1/1) ... [2023-12-23 00:07:44,945 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.12 12:07:44" (1/1) ... [2023-12-23 00:07:44,982 INFO L138 Inliner]: procedures = 27, calls = 87, calls flagged for inlining = 8, calls inlined = 8, statements flattened = 355 [2023-12-23 00:07:44,983 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2023-12-23 00:07:44,984 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2023-12-23 00:07:44,984 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2023-12-23 00:07:44,984 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2023-12-23 00:07:44,994 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.12 12:07:44" (1/1) ... [2023-12-23 00:07:44,995 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.12 12:07:44" (1/1) ... [2023-12-23 00:07:45,001 INFO L184 PluginConnector]: Executing the observer MemorySlicer from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.12 12:07:44" (1/1) ... [2023-12-23 00:07:45,014 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 00:07:45,015 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.12 12:07:44" (1/1) ... [2023-12-23 00:07:45,015 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.12 12:07:44" (1/1) ... [2023-12-23 00:07:45,043 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.12 12:07:44" (1/1) ... [2023-12-23 00:07:45,060 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.12 12:07:44" (1/1) ... [2023-12-23 00:07:45,063 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.12 12:07:44" (1/1) ... [2023-12-23 00:07:45,066 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.12 12:07:44" (1/1) ... [2023-12-23 00:07:45,070 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2023-12-23 00:07:45,071 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2023-12-23 00:07:45,071 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2023-12-23 00:07:45,071 INFO L274 PluginConnector]: RCFGBuilder initialized [2023-12-23 00:07:45,072 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.12 12:07:44" (1/1) ... [2023-12-23 00:07:45,087 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2023-12-23 00:07:45,097 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-12-23 00:07:45,119 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 00:07:45,141 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 00:07:45,149 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2023-12-23 00:07:45,149 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE1#0 [2023-12-23 00:07:45,149 INFO L130 BoogieDeclarations]: Found specification of procedure assume_abort_if_not [2023-12-23 00:07:45,151 INFO L138 BoogieDeclarations]: Found implementation of procedure assume_abort_if_not [2023-12-23 00:07:45,151 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2023-12-23 00:07:45,151 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2023-12-23 00:07:45,274 INFO L241 CfgBuilder]: Building ICFG [2023-12-23 00:07:45,276 INFO L267 CfgBuilder]: Building CFG for each procedure with an implementation [2023-12-23 00:07:55,706 INFO L282 CfgBuilder]: Performing block encoding [2023-12-23 00:07:55,811 INFO L304 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2023-12-23 00:07:55,811 INFO L309 CfgBuilder]: Removed 1 assume(true) statements. [2023-12-23 00:07:55,811 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 23.12 12:07:55 BoogieIcfgContainer [2023-12-23 00:07:55,811 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2023-12-23 00:07:55,815 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2023-12-23 00:07:55,815 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2023-12-23 00:07:55,818 INFO L274 PluginConnector]: TraceAbstraction initialized [2023-12-23 00:07:55,818 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 23.12 12:07:44" (1/3) ... [2023-12-23 00:07:55,819 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@6abfaa36 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 23.12 12:07:55, skipping insertion in model container [2023-12-23 00:07:55,820 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.12 12:07:44" (2/3) ... [2023-12-23 00:07:55,820 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@6abfaa36 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 23.12 12:07:55, skipping insertion in model container [2023-12-23 00:07:55,820 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 23.12 12:07:55" (3/3) ... [2023-12-23 00:07:55,822 INFO L112 eAbstractionObserver]: Analyzing ICFG hardness_fillercode_fillercodesize_ps-cn-100_file-4.i [2023-12-23 00:07:55,838 INFO L204 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2023-12-23 00:07:55,839 INFO L163 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2023-12-23 00:07:55,881 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2023-12-23 00:07:55,886 INFO L357 AbstractCegarLoop]: Settings: SEPARATE_VIOLATION_CHECK=true, mInterprocedural=true, mMaxIterations=1000000, mWatchIteration=1000000, mArtifact=RCFG, mInterpolation=FPandBP, mInterpolantAutomaton=STRAIGHT_LINE, mDumpAutomata=false, mAutomataFormat=ATS_NUMERATE, mDumpPath=., mDeterminiation=PREDICATE_ABSTRACTION, mMinimize=MINIMIZE_SEVPA, mHoare=true, mAutomataTypeConcurrency=PETRI_NET, mHoareTripleChecks=INCREMENTAL, mHoareAnnotationPositions=LoopHeads, mDumpOnlyReuseAutomata=false, mLimitTraceHistogram=0, mErrorLocTimeLimit=0, mLimitPathProgramCount=0, mCollectInterpolantStatistics=true, mHeuristicEmptinessCheck=false, mHeuristicEmptinessCheckAStarHeuristic=ZERO, mHeuristicEmptinessCheckAStarHeuristicRandomSeed=1337, mHeuristicEmptinessCheckSmtFeatureScoringMethod=DAGSIZE, mSMTFeatureExtraction=false, mSMTFeatureExtractionDumpPath=., mOverrideInterpolantAutomaton=false, mMcrInterpolantMethod=WP, mPorIndependenceSettings=[Lde.uni_freiburg.informatik.ultimate.lib.tracecheckerutils.partialorder.independence.IndependenceSettings;@3a4c9ef1, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2023-12-23 00:07:55,887 INFO L358 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2023-12-23 00:07:55,894 INFO L276 IsEmpty]: Start isEmpty. Operand has 161 states, 84 states have (on average 1.4285714285714286) internal successors, (120), 85 states have internal predecessors, (120), 74 states have call successors, (74), 1 states have call predecessors, (74), 1 states have return successors, (74), 74 states have call predecessors, (74), 74 states have call successors, (74) [2023-12-23 00:07:55,914 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 438 [2023-12-23 00:07:55,915 INFO L187 NwaCegarLoop]: Found error trace [2023-12-23 00:07:55,916 INFO L195 NwaCegarLoop]: trace histogram [74, 74, 74, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 00:07:55,916 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-23 00:07:55,921 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-23 00:07:55,921 INFO L85 PathProgramCache]: Analyzing trace with hash 282107603, now seen corresponding path program 1 times [2023-12-23 00:07:55,935 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-12-23 00:07:55,935 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [339747253] [2023-12-23 00:07:55,936 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-23 00:07:55,936 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 00:07:55,936 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2023-12-23 00:07:55,939 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 00:07:55,939 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 00:07:57,050 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-23 00:07:57,108 INFO L262 TraceCheckSpWp]: Trace formula consists of 680 conjuncts, 1 conjunts are in the unsatisfiable core [2023-12-23 00:07:57,122 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-23 00:07:57,208 INFO L134 CoverageAnalysis]: Checked inductivity of 10804 backedges. 5354 proven. 0 refuted. 0 times theorem prover too weak. 5450 trivial. 0 not checked. [2023-12-23 00:07:57,209 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-12-23 00:07:57,210 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-12-23 00:07:57,210 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [339747253] [2023-12-23 00:07:57,210 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [339747253] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-23 00:07:57,211 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-23 00:07:57,211 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2023-12-23 00:07:57,213 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [537225848] [2023-12-23 00:07:57,213 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-23 00:07:57,218 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2023-12-23 00:07:57,218 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-12-23 00:07:57,246 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2023-12-23 00:07:57,247 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2023-12-23 00:07:57,250 INFO L87 Difference]: Start difference. First operand has 161 states, 84 states have (on average 1.4285714285714286) internal successors, (120), 85 states have internal predecessors, (120), 74 states have call successors, (74), 1 states have call predecessors, (74), 1 states have return successors, (74), 74 states have call predecessors, (74), 74 states have call successors, (74) Second operand has 2 states, 2 states have (on average 37.0) internal successors, (74), 2 states have internal predecessors, (74), 2 states have call successors, (74), 2 states have call predecessors, (74), 2 states have return successors, (74), 2 states have call predecessors, (74), 2 states have call successors, (74) [2023-12-23 00:07:57,642 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-23 00:07:57,642 INFO L93 Difference]: Finished difference Result 319 states and 608 transitions. [2023-12-23 00:07:57,663 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2023-12-23 00:07:57,665 INFO L78 Accepts]: Start accepts. Automaton has has 2 states, 2 states have (on average 37.0) internal successors, (74), 2 states have internal predecessors, (74), 2 states have call successors, (74), 2 states have call predecessors, (74), 2 states have return successors, (74), 2 states have call predecessors, (74), 2 states have call successors, (74) Word has length 437 [2023-12-23 00:07:57,665 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-23 00:07:57,671 INFO L225 Difference]: With dead ends: 319 [2023-12-23 00:07:57,671 INFO L226 Difference]: Without dead ends: 159 [2023-12-23 00:07:57,675 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 436 GetRequests, 436 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 00:07:57,678 INFO L413 NwaCegarLoop]: 259 mSDtfsCounter, 0 mSDsluCounter, 0 mSDsCounter, 0 mSdLazyCounter, 3 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 259 SdHoareTripleChecker+Invalid, 3 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 3 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2023-12-23 00:07:57,678 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 259 Invalid, 3 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 3 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2023-12-23 00:07:57,690 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 159 states. [2023-12-23 00:07:57,721 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 159 to 159. [2023-12-23 00:07:57,722 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 159 states, 83 states have (on average 1.3734939759036144) internal successors, (114), 83 states have internal predecessors, (114), 74 states have call successors, (74), 1 states have call predecessors, (74), 1 states have return successors, (74), 74 states have call predecessors, (74), 74 states have call successors, (74) [2023-12-23 00:07:57,724 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 159 states to 159 states and 262 transitions. [2023-12-23 00:07:57,725 INFO L78 Accepts]: Start accepts. Automaton has 159 states and 262 transitions. Word has length 437 [2023-12-23 00:07:57,725 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-23 00:07:57,725 INFO L495 AbstractCegarLoop]: Abstraction has 159 states and 262 transitions. [2023-12-23 00:07:57,726 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 2 states, 2 states have (on average 37.0) internal successors, (74), 2 states have internal predecessors, (74), 2 states have call successors, (74), 2 states have call predecessors, (74), 2 states have return successors, (74), 2 states have call predecessors, (74), 2 states have call successors, (74) [2023-12-23 00:07:57,726 INFO L276 IsEmpty]: Start isEmpty. Operand 159 states and 262 transitions. [2023-12-23 00:07:57,732 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 439 [2023-12-23 00:07:57,732 INFO L187 NwaCegarLoop]: Found error trace [2023-12-23 00:07:57,733 INFO L195 NwaCegarLoop]: trace histogram [74, 74, 74, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 00:07:57,759 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 00:07:57,948 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 00:07:57,949 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-23 00:07:57,950 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-23 00:07:57,950 INFO L85 PathProgramCache]: Analyzing trace with hash -1500849926, now seen corresponding path program 1 times [2023-12-23 00:07:57,951 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-12-23 00:07:57,951 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [108045590] [2023-12-23 00:07:57,951 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-23 00:07:57,951 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 00:07:57,952 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2023-12-23 00:07:57,958 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 00:07:57,960 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 00:07:59,128 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-23 00:07:59,180 INFO L262 TraceCheckSpWp]: Trace formula consists of 682 conjuncts, 9 conjunts are in the unsatisfiable core [2023-12-23 00:07:59,191 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-23 00:08:12,713 INFO L134 CoverageAnalysis]: Checked inductivity of 10804 backedges. 719 proven. 423 refuted. 0 times theorem prover too weak. 9662 trivial. 0 not checked. [2023-12-23 00:08:12,713 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-12-23 00:08:18,109 INFO L134 CoverageAnalysis]: Checked inductivity of 10804 backedges. 9 proven. 426 refuted. 0 times theorem prover too weak. 10369 trivial. 0 not checked. [2023-12-23 00:08:18,109 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-12-23 00:08:18,113 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [108045590] [2023-12-23 00:08:18,114 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [108045590] provided 0 perfect and 2 imperfect interpolant sequences [2023-12-23 00:08:18,114 INFO L185 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2023-12-23 00:08:18,114 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [10, 10] total 14 [2023-12-23 00:08:18,114 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [886663852] [2023-12-23 00:08:18,115 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2023-12-23 00:08:18,119 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 14 states [2023-12-23 00:08:18,119 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-12-23 00:08:18,120 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 14 interpolants. [2023-12-23 00:08:18,120 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=54, Invalid=128, Unknown=0, NotChecked=0, Total=182 [2023-12-23 00:08:18,121 INFO L87 Difference]: Start difference. First operand 159 states and 262 transitions. Second operand has 14 states, 14 states have (on average 6.357142857142857) internal successors, (89), 14 states have internal predecessors, (89), 3 states have call successors, (146), 3 states have call predecessors, (146), 7 states have return successors, (147), 3 states have call predecessors, (147), 3 states have call successors, (147) [2023-12-23 00:08:27,600 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-23 00:08:27,600 INFO L93 Difference]: Finished difference Result 342 states and 547 transitions. [2023-12-23 00:08:27,601 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 17 states. [2023-12-23 00:08:27,601 INFO L78 Accepts]: Start accepts. Automaton has has 14 states, 14 states have (on average 6.357142857142857) internal successors, (89), 14 states have internal predecessors, (89), 3 states have call successors, (146), 3 states have call predecessors, (146), 7 states have return successors, (147), 3 states have call predecessors, (147), 3 states have call successors, (147) Word has length 438 [2023-12-23 00:08:27,603 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-23 00:08:27,605 INFO L225 Difference]: With dead ends: 342 [2023-12-23 00:08:27,605 INFO L226 Difference]: Without dead ends: 184 [2023-12-23 00:08:27,606 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 884 GetRequests, 861 SyntacticMatches, 2 SemanticMatches, 21 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 86 ImplicationChecksByTransitivity, 2.1s TimeCoverageRelationStatistics Valid=155, Invalid=351, Unknown=0, NotChecked=0, Total=506 [2023-12-23 00:08:27,607 INFO L413 NwaCegarLoop]: 172 mSDtfsCounter, 149 mSDsluCounter, 638 mSDsCounter, 0 mSdLazyCounter, 943 mSolverCounterSat, 40 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 8.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 151 SdHoareTripleChecker+Valid, 810 SdHoareTripleChecker+Invalid, 983 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 40 IncrementalHoareTripleChecker+Valid, 943 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 8.5s IncrementalHoareTripleChecker+Time [2023-12-23 00:08:27,607 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [151 Valid, 810 Invalid, 983 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [40 Valid, 943 Invalid, 0 Unknown, 0 Unchecked, 8.5s Time] [2023-12-23 00:08:27,608 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 184 states. [2023-12-23 00:08:27,630 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 184 to 171. [2023-12-23 00:08:27,631 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 171 states, 93 states have (on average 1.2903225806451613) internal successors, (120), 93 states have internal predecessors, (120), 74 states have call successors, (74), 3 states have call predecessors, (74), 3 states have return successors, (74), 74 states have call predecessors, (74), 74 states have call successors, (74) [2023-12-23 00:08:27,632 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 171 states to 171 states and 268 transitions. [2023-12-23 00:08:27,632 INFO L78 Accepts]: Start accepts. Automaton has 171 states and 268 transitions. Word has length 438 [2023-12-23 00:08:27,633 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-23 00:08:27,633 INFO L495 AbstractCegarLoop]: Abstraction has 171 states and 268 transitions. [2023-12-23 00:08:27,634 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 14 states, 14 states have (on average 6.357142857142857) internal successors, (89), 14 states have internal predecessors, (89), 3 states have call successors, (146), 3 states have call predecessors, (146), 7 states have return successors, (147), 3 states have call predecessors, (147), 3 states have call successors, (147) [2023-12-23 00:08:27,634 INFO L276 IsEmpty]: Start isEmpty. Operand 171 states and 268 transitions. [2023-12-23 00:08:27,653 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 440 [2023-12-23 00:08:27,653 INFO L187 NwaCegarLoop]: Found error trace [2023-12-23 00:08:27,653 INFO L195 NwaCegarLoop]: trace histogram [74, 74, 74, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 00:08:27,695 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 00:08:27,868 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 00:08:27,869 INFO L420 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-23 00:08:27,869 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-23 00:08:27,870 INFO L85 PathProgramCache]: Analyzing trace with hash 912488489, now seen corresponding path program 1 times [2023-12-23 00:08:27,871 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-12-23 00:08:27,871 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1063108082] [2023-12-23 00:08:27,871 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-23 00:08:27,871 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 00:08:27,871 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2023-12-23 00:08:27,874 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 00:08:27,875 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 00:08:28,947 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-23 00:08:28,997 INFO L262 TraceCheckSpWp]: Trace formula consists of 684 conjuncts, 8 conjunts are in the unsatisfiable core [2023-12-23 00:08:29,006 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-23 00:08:48,067 INFO L134 CoverageAnalysis]: Checked inductivity of 10804 backedges. 2169 proven. 195 refuted. 0 times theorem prover too weak. 8440 trivial. 0 not checked. [2023-12-23 00:08:48,070 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-12-23 00:08:49,836 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-12-23 00:08:49,836 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1063108082] [2023-12-23 00:08:49,836 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1063108082] provided 0 perfect and 1 imperfect interpolant sequences [2023-12-23 00:08:49,836 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleCvc4 [2030590575] [2023-12-23 00:08:49,837 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-23 00:08:49,837 INFO L173 SolverBuilder]: Constructing external solver with command: cvc4 --incremental --print-success --lang smt [2023-12-23 00:08:49,837 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/cvc4 [2023-12-23 00:08:49,870 INFO L229 MonitoredProcess]: Starting monitored process 5 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/cvc4 --incremental --print-success --lang smt (exit command is (exit), workingDir is null) [2023-12-23 00:08:49,871 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/cvc4 --incremental --print-success --lang smt (5)] Waiting until timeout for monitored process [2023-12-23 00:08:52,922 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-23 00:08:52,989 INFO L262 TraceCheckSpWp]: Trace formula consists of 684 conjuncts, 11 conjunts are in the unsatisfiable core [2023-12-23 00:08:53,017 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-23 00:09:11,139 INFO L134 CoverageAnalysis]: Checked inductivity of 10804 backedges. 2490 proven. 381 refuted. 0 times theorem prover too weak. 7933 trivial. 0 not checked. [2023-12-23 00:09:11,139 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-12-23 00:09:13,048 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleCvc4 [2030590575] provided 0 perfect and 1 imperfect interpolant sequences [2023-12-23 00:09:13,049 INFO L185 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2023-12-23 00:09:13,049 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [7, 10] total 16 [2023-12-23 00:09:13,049 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [953747291] [2023-12-23 00:09:13,049 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2023-12-23 00:09:13,050 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 17 states [2023-12-23 00:09:13,050 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-12-23 00:09:13,052 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 17 interpolants. [2023-12-23 00:09:13,053 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=76, Invalid=344, Unknown=0, NotChecked=0, Total=420 [2023-12-23 00:09:13,054 INFO L87 Difference]: Start difference. First operand 171 states and 268 transitions. Second operand has 17 states, 17 states have (on average 8.941176470588236) internal successors, (152), 16 states have internal predecessors, (152), 5 states have call successors, (148), 5 states have call predecessors, (148), 8 states have return successors, (148), 5 states have call predecessors, (148), 5 states have call successors, (148) [2023-12-23 00:09:39,681 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-23 00:09:39,681 INFO L93 Difference]: Finished difference Result 533 states and 818 transitions. [2023-12-23 00:09:39,683 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 22 states. [2023-12-23 00:09:39,683 INFO L78 Accepts]: Start accepts. Automaton has has 17 states, 17 states have (on average 8.941176470588236) internal successors, (152), 16 states have internal predecessors, (152), 5 states have call successors, (148), 5 states have call predecessors, (148), 8 states have return successors, (148), 5 states have call predecessors, (148), 5 states have call successors, (148) Word has length 439 [2023-12-23 00:09:39,685 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-23 00:09:39,688 INFO L225 Difference]: With dead ends: 533 [2023-12-23 00:09:39,688 INFO L226 Difference]: Without dead ends: 363 [2023-12-23 00:09:39,689 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 956 GetRequests, 917 SyntacticMatches, 0 SemanticMatches, 39 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 332 ImplicationChecksByTransitivity, 6.8s TimeCoverageRelationStatistics Valid=457, Invalid=1183, Unknown=0, NotChecked=0, Total=1640 [2023-12-23 00:09:39,690 INFO L413 NwaCegarLoop]: 336 mSDtfsCounter, 617 mSDsluCounter, 828 mSDsCounter, 0 mSdLazyCounter, 1292 mSolverCounterSat, 676 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 21.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 617 SdHoareTripleChecker+Valid, 1164 SdHoareTripleChecker+Invalid, 1968 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 676 IncrementalHoareTripleChecker+Valid, 1292 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 22.2s IncrementalHoareTripleChecker+Time [2023-12-23 00:09:39,690 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [617 Valid, 1164 Invalid, 1968 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [676 Valid, 1292 Invalid, 0 Unknown, 0 Unchecked, 22.2s Time] [2023-12-23 00:09:39,691 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 363 states. [2023-12-23 00:09:39,770 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 363 to 349. [2023-12-23 00:09:39,771 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 349 states, 190 states have (on average 1.263157894736842) internal successors, (240), 190 states have internal predecessors, (240), 148 states have call successors, (148), 10 states have call predecessors, (148), 10 states have return successors, (148), 148 states have call predecessors, (148), 148 states have call successors, (148) [2023-12-23 00:09:39,775 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 349 states to 349 states and 536 transitions. [2023-12-23 00:09:39,775 INFO L78 Accepts]: Start accepts. Automaton has 349 states and 536 transitions. Word has length 439 [2023-12-23 00:09:39,781 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-23 00:09:39,781 INFO L495 AbstractCegarLoop]: Abstraction has 349 states and 536 transitions. [2023-12-23 00:09:39,781 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 17 states, 17 states have (on average 8.941176470588236) internal successors, (152), 16 states have internal predecessors, (152), 5 states have call successors, (148), 5 states have call predecessors, (148), 8 states have return successors, (148), 5 states have call predecessors, (148), 5 states have call successors, (148) [2023-12-23 00:09:39,781 INFO L276 IsEmpty]: Start isEmpty. Operand 349 states and 536 transitions. [2023-12-23 00:09:39,786 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 440 [2023-12-23 00:09:39,786 INFO L187 NwaCegarLoop]: Found error trace [2023-12-23 00:09:39,787 INFO L195 NwaCegarLoop]: trace histogram [74, 74, 74, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 00:09:39,808 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 00:09:40,010 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/cvc4 --incremental --print-success --lang smt (5)] Forceful destruction successful, exit code 0 [2023-12-23 00:09:40,188 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 4 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3,5 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/cvc4 --incremental --print-success --lang smt [2023-12-23 00:09:40,188 INFO L420 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-23 00:09:40,189 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-23 00:09:40,189 INFO L85 PathProgramCache]: Analyzing trace with hash 1170653927, now seen corresponding path program 1 times [2023-12-23 00:09:40,190 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-12-23 00:09:40,190 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [478464594] [2023-12-23 00:09:40,190 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-23 00:09:40,190 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 00:09:40,190 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2023-12-23 00:09:40,193 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 00:09:40,195 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 00:09:41,177 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-23 00:09:41,221 INFO L262 TraceCheckSpWp]: Trace formula consists of 683 conjuncts, 6 conjunts are in the unsatisfiable core [2023-12-23 00:09:41,241 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-23 00:09:52,090 INFO L134 CoverageAnalysis]: Checked inductivity of 10804 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 10804 trivial. 0 not checked. [2023-12-23 00:09:52,090 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-12-23 00:09:52,091 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-12-23 00:09:52,091 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [478464594] [2023-12-23 00:09:52,091 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [478464594] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-23 00:09:52,091 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-23 00:09:52,091 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2023-12-23 00:09:52,091 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [701300638] [2023-12-23 00:09:52,091 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-23 00:09:52,091 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2023-12-23 00:09:52,092 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-12-23 00:09:52,092 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2023-12-23 00:09:52,092 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2023-12-23 00:09:52,092 INFO L87 Difference]: Start difference. First operand 349 states and 536 transitions. Second operand has 5 states, 5 states have (on average 14.4) internal successors, (72), 4 states have internal predecessors, (72), 1 states have call successors, (74), 1 states have call predecessors, (74), 1 states have return successors, (74), 1 states have call predecessors, (74), 1 states have call successors, (74) [2023-12-23 00:09:54,295 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-23 00:09:54,296 INFO L93 Difference]: Finished difference Result 694 states and 1063 transitions. [2023-12-23 00:09:54,314 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2023-12-23 00:09:54,314 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 14.4) internal successors, (72), 4 states have internal predecessors, (72), 1 states have call successors, (74), 1 states have call predecessors, (74), 1 states have return successors, (74), 1 states have call predecessors, (74), 1 states have call successors, (74) Word has length 439 [2023-12-23 00:09:54,315 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-23 00:09:54,317 INFO L225 Difference]: With dead ends: 694 [2023-12-23 00:09:54,317 INFO L226 Difference]: Without dead ends: 346 [2023-12-23 00:09:54,318 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 441 GetRequests, 435 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=22, Invalid=34, Unknown=0, NotChecked=0, Total=56 [2023-12-23 00:09:54,319 INFO L413 NwaCegarLoop]: 246 mSDtfsCounter, 141 mSDsluCounter, 583 mSDsCounter, 0 mSdLazyCounter, 177 mSolverCounterSat, 149 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.8s Time, 0 mProtectedPredicate, 0 mProtectedAction, 141 SdHoareTripleChecker+Valid, 829 SdHoareTripleChecker+Invalid, 326 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 149 IncrementalHoareTripleChecker+Valid, 177 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.9s IncrementalHoareTripleChecker+Time [2023-12-23 00:09:54,319 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [141 Valid, 829 Invalid, 326 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [149 Valid, 177 Invalid, 0 Unknown, 0 Unchecked, 1.9s Time] [2023-12-23 00:09:54,319 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 346 states. [2023-12-23 00:09:54,405 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 346 to 331. [2023-12-23 00:09:54,406 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 331 states, 172 states have (on average 1.25) internal successors, (215), 172 states have internal predecessors, (215), 148 states have call successors, (148), 10 states have call predecessors, (148), 10 states have return successors, (148), 148 states have call predecessors, (148), 148 states have call successors, (148) [2023-12-23 00:09:54,408 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 331 states to 331 states and 511 transitions. [2023-12-23 00:09:54,409 INFO L78 Accepts]: Start accepts. Automaton has 331 states and 511 transitions. Word has length 439 [2023-12-23 00:09:54,409 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-23 00:09:54,410 INFO L495 AbstractCegarLoop]: Abstraction has 331 states and 511 transitions. [2023-12-23 00:09:54,411 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 14.4) internal successors, (72), 4 states have internal predecessors, (72), 1 states have call successors, (74), 1 states have call predecessors, (74), 1 states have return successors, (74), 1 states have call predecessors, (74), 1 states have call successors, (74) [2023-12-23 00:09:54,411 INFO L276 IsEmpty]: Start isEmpty. Operand 331 states and 511 transitions. [2023-12-23 00:09:54,413 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 441 [2023-12-23 00:09:54,413 INFO L187 NwaCegarLoop]: Found error trace [2023-12-23 00:09:54,414 INFO L195 NwaCegarLoop]: trace histogram [74, 74, 74, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 00:09:54,438 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 00:09:54,627 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 00:09:54,628 INFO L420 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-23 00:09:54,628 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-23 00:09:54,628 INFO L85 PathProgramCache]: Analyzing trace with hash 2122478073, now seen corresponding path program 1 times [2023-12-23 00:09:54,629 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-12-23 00:09:54,629 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [345384257] [2023-12-23 00:09:54,629 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-23 00:09:54,629 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 00:09:54,629 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2023-12-23 00:09:54,630 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 00:09:54,631 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 00:09:55,598 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-23 00:09:55,641 INFO L262 TraceCheckSpWp]: Trace formula consists of 685 conjuncts, 4 conjunts are in the unsatisfiable core [2023-12-23 00:09:55,647 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-23 00:10:01,095 INFO L134 CoverageAnalysis]: Checked inductivity of 10804 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 10804 trivial. 0 not checked. [2023-12-23 00:10:01,095 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-12-23 00:10:01,095 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-12-23 00:10:01,095 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [345384257] [2023-12-23 00:10:01,095 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [345384257] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-23 00:10:01,095 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-23 00:10:01,095 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2023-12-23 00:10:01,096 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [690291925] [2023-12-23 00:10:01,096 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-23 00:10:01,096 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2023-12-23 00:10:01,096 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-12-23 00:10:01,097 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2023-12-23 00:10:01,097 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2023-12-23 00:10:01,097 INFO L87 Difference]: Start difference. First operand 331 states and 511 transitions. Second operand has 5 states, 5 states have (on average 14.6) internal successors, (73), 4 states have internal predecessors, (73), 1 states have call successors, (74), 1 states have call predecessors, (74), 1 states have return successors, (74), 1 states have call predecessors, (74), 1 states have call successors, (74) [2023-12-23 00:10:02,876 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-23 00:10:02,877 INFO L93 Difference]: Finished difference Result 504 states and 775 transitions. [2023-12-23 00:10:02,878 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2023-12-23 00:10:02,878 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 14.6) internal successors, (73), 4 states have internal predecessors, (73), 1 states have call successors, (74), 1 states have call predecessors, (74), 1 states have return successors, (74), 1 states have call predecessors, (74), 1 states have call successors, (74) Word has length 440 [2023-12-23 00:10:02,879 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-23 00:10:02,881 INFO L225 Difference]: With dead ends: 504 [2023-12-23 00:10:02,881 INFO L226 Difference]: Without dead ends: 332 [2023-12-23 00:10:02,882 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 440 GetRequests, 436 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=14, Invalid=16, Unknown=0, NotChecked=0, Total=30 [2023-12-23 00:10:02,882 INFO L413 NwaCegarLoop]: 243 mSDtfsCounter, 285 mSDsluCounter, 90 mSDsCounter, 0 mSdLazyCounter, 165 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 285 SdHoareTripleChecker+Valid, 333 SdHoareTripleChecker+Invalid, 166 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 165 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.6s IncrementalHoareTripleChecker+Time [2023-12-23 00:10:02,883 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [285 Valid, 333 Invalid, 166 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 165 Invalid, 0 Unknown, 0 Unchecked, 1.6s Time] [2023-12-23 00:10:02,883 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 332 states. [2023-12-23 00:10:02,945 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 332 to 331. [2023-12-23 00:10:02,946 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 331 states, 172 states have (on average 1.244186046511628) internal successors, (214), 172 states have internal predecessors, (214), 148 states have call successors, (148), 10 states have call predecessors, (148), 10 states have return successors, (148), 148 states have call predecessors, (148), 148 states have call successors, (148) [2023-12-23 00:10:02,948 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 331 states to 331 states and 510 transitions. [2023-12-23 00:10:02,949 INFO L78 Accepts]: Start accepts. Automaton has 331 states and 510 transitions. Word has length 440 [2023-12-23 00:10:02,949 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-23 00:10:02,949 INFO L495 AbstractCegarLoop]: Abstraction has 331 states and 510 transitions. [2023-12-23 00:10:02,950 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 14.6) internal successors, (73), 4 states have internal predecessors, (73), 1 states have call successors, (74), 1 states have call predecessors, (74), 1 states have return successors, (74), 1 states have call predecessors, (74), 1 states have call successors, (74) [2023-12-23 00:10:02,950 INFO L276 IsEmpty]: Start isEmpty. Operand 331 states and 510 transitions. [2023-12-23 00:10:02,952 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 441 [2023-12-23 00:10:02,952 INFO L187 NwaCegarLoop]: Found error trace [2023-12-23 00:10:02,952 INFO L195 NwaCegarLoop]: trace histogram [74, 74, 74, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 00:10:02,982 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 00:10:03,170 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 00:10:03,171 INFO L420 AbstractCegarLoop]: === Iteration 6 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-23 00:10:03,171 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-23 00:10:03,171 INFO L85 PathProgramCache]: Analyzing trace with hash -1363142597, now seen corresponding path program 1 times [2023-12-23 00:10:03,172 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-12-23 00:10:03,172 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1130619135] [2023-12-23 00:10:03,172 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-23 00:10:03,172 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 00:10:03,172 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2023-12-23 00:10:03,173 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 00:10:03,174 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 00:10:04,159 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-23 00:10:04,209 INFO L262 TraceCheckSpWp]: Trace formula consists of 685 conjuncts, 23 conjunts are in the unsatisfiable core [2023-12-23 00:10:04,217 INFO L285 TraceCheckSpWp]: Computing forward predicates... Received shutdown request... [2023-12-23 00:22:13,889 WARN L340 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (1)] Timeout while monitored process is still running, waiting 1000 ms for graceful end [2023-12-23 00:22:13,890 WARN L340 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (8)] Timeout while monitored process is still running, waiting 1000 ms for graceful end [2023-12-23 00:22:14,333 INFO L805 garLoopResultBuilder]: Registering result TIMEOUT for location ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION (0 of 1 remaining) [2023-12-23 00:22:14,364 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (8)] Ended with exit code 0 [2023-12-23 00:22:14,534 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 00:22:14,535 WARN L619 AbstractCegarLoop]: Verification canceled: while NwaCegarLoop was analyzing trace of length 441 with TraceHistMax 74,while TraceCheckSpWp was constructing forward predicates,while PolyPacSimplificationTermWalker was simplifying a ∧-16-2-3-2-2-2-4-3-2-2-3-2-2-2-3-2-2-2-2-2-2-2-3-2-2-2-2-2-2-2-2-2-2-2-2-2-2-2-2-2-2-2-2-2-2-2-2-2-2-2-2-2-2-2-2-2-3-2-2-2-4-3-3-2-2-2-2-2-2-2-2-2-2-2-3-2-2-1 term,while PolyPacSimplificationTermWalker was simplifying 3 xjuncts wrt. a ∧-73-4-3-4-3-4-3-3-2-3-2-3-2-4-3-4-3-4-3-4-3-4-3-4-3-4-3-4-3-3-2-4-3-3-2-3-2-4-3-3-2-4-3-4-3-4-3-4-3-4-3-4-3-4-3-3-2-4-3-4-3-3-2-3-2-3-2-3-2-2-2-3-2-3-2-2-1 context. [2023-12-23 00:22:14,538 INFO L445 BasicCegarLoop]: Path program histogram: [1, 1, 1, 1, 1, 1] [2023-12-23 00:22:14,541 INFO L179 ceAbstractionStarter]: Computing trace abstraction results [2023-12-23 00:22:14,542 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 23.12 12:22:14 BoogieIcfgContainer [2023-12-23 00:22:14,542 INFO L131 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2023-12-23 00:22:14,543 INFO L158 Benchmark]: Toolchain (without parser) took 870011.83ms. Allocated memory was 243.3MB in the beginning and 1.5GB in the end (delta: 1.3GB). Free memory was 190.6MB in the beginning and 746.2MB in the end (delta: -555.7MB). Peak memory consumption was 1.1GB. Max. memory is 8.0GB. [2023-12-23 00:22:14,543 INFO L158 Benchmark]: CDTParser took 0.25ms. Allocated memory is still 194.0MB. Free memory was 141.0MB in the beginning and 140.9MB in the end (delta: 142.7kB). There was no memory consumed. Max. memory is 8.0GB. [2023-12-23 00:22:14,543 INFO L158 Benchmark]: CACSL2BoogieTranslator took 378.26ms. Allocated memory is still 243.3MB. Free memory was 190.6MB in the beginning and 170.7MB in the end (delta: 19.9MB). Peak memory consumption was 19.9MB. Max. memory is 8.0GB. [2023-12-23 00:22:14,543 INFO L158 Benchmark]: Boogie Procedure Inliner took 70.15ms. Allocated memory is still 243.3MB. Free memory was 170.7MB in the beginning and 167.0MB in the end (delta: 3.7MB). Peak memory consumption was 4.2MB. Max. memory is 8.0GB. [2023-12-23 00:22:14,544 INFO L158 Benchmark]: Boogie Preprocessor took 86.84ms. Allocated memory is still 243.3MB. Free memory was 167.0MB in the beginning and 162.3MB in the end (delta: 4.7MB). Peak memory consumption was 4.2MB. Max. memory is 8.0GB. [2023-12-23 00:22:14,546 INFO L158 Benchmark]: RCFGBuilder took 10740.35ms. Allocated memory is still 243.3MB. Free memory was 162.3MB in the beginning and 200.5MB in the end (delta: -38.2MB). Peak memory consumption was 40.4MB. Max. memory is 8.0GB. [2023-12-23 00:22:14,546 INFO L158 Benchmark]: TraceAbstraction took 858727.92ms. Allocated memory was 243.3MB in the beginning and 1.5GB in the end (delta: 1.3GB). Free memory was 199.4MB in the beginning and 746.2MB in the end (delta: -546.8MB). Peak memory consumption was 1.1GB. Max. memory is 8.0GB. [2023-12-23 00:22:14,547 INFO L338 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.25ms. Allocated memory is still 194.0MB. Free memory was 141.0MB in the beginning and 140.9MB in the end (delta: 142.7kB). There was no memory consumed. Max. memory is 8.0GB. * CACSL2BoogieTranslator took 378.26ms. Allocated memory is still 243.3MB. Free memory was 190.6MB in the beginning and 170.7MB in the end (delta: 19.9MB). Peak memory consumption was 19.9MB. Max. memory is 8.0GB. * Boogie Procedure Inliner took 70.15ms. Allocated memory is still 243.3MB. Free memory was 170.7MB in the beginning and 167.0MB in the end (delta: 3.7MB). Peak memory consumption was 4.2MB. Max. memory is 8.0GB. * Boogie Preprocessor took 86.84ms. Allocated memory is still 243.3MB. Free memory was 167.0MB in the beginning and 162.3MB in the end (delta: 4.7MB). Peak memory consumption was 4.2MB. Max. memory is 8.0GB. * RCFGBuilder took 10740.35ms. Allocated memory is still 243.3MB. Free memory was 162.3MB in the beginning and 200.5MB in the end (delta: -38.2MB). Peak memory consumption was 40.4MB. Max. memory is 8.0GB. * TraceAbstraction took 858727.92ms. Allocated memory was 243.3MB in the beginning and 1.5GB in the end (delta: 1.3GB). Free memory was 199.4MB in the beginning and 746.2MB in the end (delta: -546.8MB). Peak memory consumption was 1.1GB. Max. memory is 8.0GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - StatisticsResult: ErrorAutomatonStatistics NumberErrorTraces: 0, NumberStatementsAllTraces: 0, NumberRelevantStatements: 0, 0.0s ErrorAutomatonConstructionTimeTotal, 0.0s FaulLocalizationTime, NumberStatementsFirstTrace: -1, TraceLengthAvg: 0, 0.0s ErrorAutomatonConstructionTimeAvg, 0.0s ErrorAutomatonDifferenceTimeAvg, 0.0s ErrorAutomatonDifferenceTimeTotal, NumberOfNoEnhancement: 0, NumberOfFiniteEnhancement: 0, NumberOfInfiniteEnhancement: 0 - TimeoutResultAtElement [Line: 19]: Timeout (TraceAbstraction) Unable to prove that a call to reach_error is unreachable (line 19). Cancelled while NwaCegarLoop was analyzing trace of length 441 with TraceHistMax 74,while TraceCheckSpWp was constructing forward predicates,while PolyPacSimplificationTermWalker was simplifying a ∧-16-2-3-2-2-2-4-3-2-2-3-2-2-2-3-2-2-2-2-2-2-2-3-2-2-2-2-2-2-2-2-2-2-2-2-2-2-2-2-2-2-2-2-2-2-2-2-2-2-2-2-2-2-2-2-2-3-2-2-2-4-3-3-2-2-2-2-2-2-2-2-2-2-2-3-2-2-1 term,while PolyPacSimplificationTermWalker was simplifying 3 xjuncts wrt. a ∧-73-4-3-4-3-4-3-3-2-3-2-3-2-4-3-4-3-4-3-4-3-4-3-4-3-4-3-4-3-3-2-4-3-3-2-3-2-4-3-3-2-4-3-4-3-4-3-4-3-4-3-4-3-4-3-3-2-4-3-4-3-3-2-3-2-3-2-3-2-2-2-3-2-3-2-2-1 context. - StatisticsResult: Ultimate Automizer benchmark data CFG has 2 procedures, 161 locations, 1 error locations. Started 1 CEGAR loops. OverallTime: 858.7s, OverallIterations: 6, TraceHistogramMax: 74, PathProgramHistogramMax: 1, EmptinessCheckTime: 0.1s, AutomataDifference: 40.6s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 1194 SdHoareTripleChecker+Valid, 34.6s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 1192 mSDsluCounter, 3395 SdHoareTripleChecker+Invalid, 33.2s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 2139 mSDsCounter, 866 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 2580 IncrementalHoareTripleChecker+Invalid, 3446 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 866 mSolverCounterUnsat, 1256 mSDtfsCounter, 2580 mSolverCounterSat, 0.1s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown, PredicateUnifierStatistics: 0 DeclaredPredicates, 3157 GetRequests, 3085 SyntacticMatches, 2 SemanticMatches, 70 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 420 ImplicationChecksByTransitivity, 9.4s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=349occurred in iteration=3, InterpolantAutomatonStates: 52, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: 0.3s AutomataMinimizationTime, 5 MinimizatonAttempts, 43 StatesRemovedByMinimization, 4 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.3s SsaConstructionTime, 7.9s SatisfiabilityAnalysisTime, 76.6s InterpolantComputationTime, 2632 NumberOfCodeBlocks, 2632 NumberOfCodeBlocksAsserted, 6 NumberOfCheckSat, 3063 ConstructedInterpolants, 1 QuantifiedInterpolants, 18513 SizeOfPredicates, 31 NumberOfNonLiveVariables, 4098 ConjunctsInSsa, 39 ConjunctsInUnsatCore, 7 InterpolantComputations, 3 PerfectInterpolantSequences, 74203/75628 InterpolantCoveringCapability, INVARIANT_SYNTHESIS: No data available, INTERPOLANT_CONSOLIDATION: No data available, ABSTRACT_INTERPRETATION: No data available, PDR: No data available, ACCELERATED_INTERPOLATION: No data available, SIFA: No data available, ReuseStatistics: No data available RESULT: Ultimate could not prove your program: Timeout Completed graceful shutdown