/usr/lib/jvm/java-1.11.0-openjdk-amd64/bin/java -Xmx8000000000 -Xss4m -jar ./plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata ./data -s ../../../trunk/examples/settings/default/automizer/svcomp-Reach-32bit-Automizer_Bitvector.epf -tc ../../../trunk/examples/toolchains/AutomizerCInline.xml -i ../../../trunk/examples/svcomp/hardness-nfm22/hardness_loopvsstraightlinecode_100-1loop_file-28.i -------------------------------------------------------------------------------- This is Ultimate 0.2.4-tmp.fs.bitabs-eval-d9c3e40-m [2023-12-23 21:11:04,061 INFO L188 SettingsManager]: Resetting all preferences to default values... [2023-12-23 21:11:04,138 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 21:11:04,142 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2023-12-23 21:11:04,143 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2023-12-23 21:11:04,169 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2023-12-23 21:11:04,169 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2023-12-23 21:11:04,169 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2023-12-23 21:11:04,170 INFO L151 SettingsManager]: Preferences of Boogie Preprocessor differ from their defaults: [2023-12-23 21:11:04,173 INFO L153 SettingsManager]: * Use memory slicer=true [2023-12-23 21:11:04,173 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2023-12-23 21:11:04,174 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2023-12-23 21:11:04,174 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2023-12-23 21:11:04,175 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2023-12-23 21:11:04,175 INFO L153 SettingsManager]: * Use SBE=true [2023-12-23 21:11:04,175 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2023-12-23 21:11:04,176 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2023-12-23 21:11:04,176 INFO L153 SettingsManager]: * sizeof long=4 [2023-12-23 21:11:04,177 INFO L153 SettingsManager]: * sizeof POINTER=4 [2023-12-23 21:11:04,177 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2023-12-23 21:11:04,177 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2023-12-23 21:11:04,177 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2023-12-23 21:11:04,177 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2023-12-23 21:11:04,178 INFO L153 SettingsManager]: * Adapt memory model on pointer casts if necessary=true [2023-12-23 21:11:04,178 INFO L153 SettingsManager]: * Use bitvectors instead of ints=true [2023-12-23 21:11:04,178 INFO L153 SettingsManager]: * Allow undefined functions=false [2023-12-23 21:11:04,178 INFO L153 SettingsManager]: * Memory model=HoenickeLindenmann_4ByteResolution [2023-12-23 21:11:04,178 INFO L153 SettingsManager]: * sizeof long double=12 [2023-12-23 21:11:04,178 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2023-12-23 21:11:04,179 INFO L153 SettingsManager]: * Use constant arrays=true [2023-12-23 21:11:04,179 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2023-12-23 21:11:04,180 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2023-12-23 21:11:04,180 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2023-12-23 21:11:04,180 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2023-12-23 21:11:04,180 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2023-12-23 21:11:04,180 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2023-12-23 21:11:04,180 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2023-12-23 21:11:04,180 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2023-12-23 21:11:04,180 INFO L153 SettingsManager]: * Trace refinement strategy=WOLF [2023-12-23 21:11:04,181 INFO L153 SettingsManager]: * Command for external solver=cvc4 --incremental --print-success --lang smt [2023-12-23 21:11:04,181 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2023-12-23 21:11:04,181 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2023-12-23 21:11:04,181 INFO L153 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2023-12-23 21:11:04,181 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2023-12-23 21:11:04,182 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2023-12-23 21:11:04,182 INFO L153 SettingsManager]: * Logic for external solver=AUFBV [2023-12-23 21:11:04,182 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release [2023-12-23 21:11:04,372 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2023-12-23 21:11:04,392 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2023-12-23 21:11:04,394 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2023-12-23 21:11:04,396 INFO L270 PluginConnector]: Initializing CDTParser... [2023-12-23 21:11:04,396 INFO L274 PluginConnector]: CDTParser initialized [2023-12-23 21:11:04,397 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/hardness-nfm22/hardness_loopvsstraightlinecode_100-1loop_file-28.i [2023-12-23 21:11:05,480 INFO L533 CDTParser]: Created temporary CDT project at NULL [2023-12-23 21:11:05,640 INFO L384 CDTParser]: Found 1 translation units. [2023-12-23 21:11:05,641 INFO L180 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/hardness-nfm22/hardness_loopvsstraightlinecode_100-1loop_file-28.i [2023-12-23 21:11:05,648 INFO L427 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/dedf86fd3/cf9d0267060e48628bf71b67a02033a4/FLAG333db0fbf [2023-12-23 21:11:05,662 INFO L435 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/dedf86fd3/cf9d0267060e48628bf71b67a02033a4 [2023-12-23 21:11:05,665 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2023-12-23 21:11:05,666 INFO L133 ToolchainWalker]: Walking toolchain with 5 elements. [2023-12-23 21:11:05,667 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2023-12-23 21:11:05,668 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2023-12-23 21:11:05,671 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2023-12-23 21:11:05,672 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 23.12 09:11:05" (1/1) ... [2023-12-23 21:11:05,672 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@1748b7af and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.12 09:11:05, skipping insertion in model container [2023-12-23 21:11:05,672 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 23.12 09:11:05" (1/1) ... [2023-12-23 21:11:05,706 INFO L177 MainTranslator]: Built tables and reachable declarations [2023-12-23 21:11:05,838 WARN L239 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/trunk/examples/svcomp/hardness-nfm22/hardness_loopvsstraightlinecode_100-1loop_file-28.i[916,929] [2023-12-23 21:11:05,901 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-12-23 21:11:05,912 INFO L202 MainTranslator]: Completed pre-run [2023-12-23 21:11:05,920 WARN L239 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/trunk/examples/svcomp/hardness-nfm22/hardness_loopvsstraightlinecode_100-1loop_file-28.i[916,929] [2023-12-23 21:11:05,955 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-12-23 21:11:05,967 INFO L206 MainTranslator]: Completed translation [2023-12-23 21:11:05,967 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.12 09:11:05 WrapperNode [2023-12-23 21:11:05,967 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2023-12-23 21:11:05,968 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2023-12-23 21:11:05,968 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2023-12-23 21:11:05,968 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2023-12-23 21:11:05,973 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.12 09:11:05" (1/1) ... [2023-12-23 21:11:05,983 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.12 09:11:05" (1/1) ... [2023-12-23 21:11:06,014 INFO L138 Inliner]: procedures = 27, calls = 56, calls flagged for inlining = 8, calls inlined = 8, statements flattened = 253 [2023-12-23 21:11:06,014 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2023-12-23 21:11:06,015 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2023-12-23 21:11:06,015 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2023-12-23 21:11:06,015 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2023-12-23 21:11:06,023 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.12 09:11:05" (1/1) ... [2023-12-23 21:11:06,023 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.12 09:11:05" (1/1) ... [2023-12-23 21:11:06,027 INFO L184 PluginConnector]: Executing the observer MemorySlicer from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.12 09:11:05" (1/1) ... [2023-12-23 21:11:06,038 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 21:11:06,039 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.12 09:11:05" (1/1) ... [2023-12-23 21:11:06,039 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.12 09:11:05" (1/1) ... [2023-12-23 21:11:06,063 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.12 09:11:05" (1/1) ... [2023-12-23 21:11:06,065 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.12 09:11:05" (1/1) ... [2023-12-23 21:11:06,067 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.12 09:11:05" (1/1) ... [2023-12-23 21:11:06,069 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.12 09:11:05" (1/1) ... [2023-12-23 21:11:06,072 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2023-12-23 21:11:06,073 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2023-12-23 21:11:06,073 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2023-12-23 21:11:06,073 INFO L274 PluginConnector]: RCFGBuilder initialized [2023-12-23 21:11:06,073 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.12 09:11:05" (1/1) ... [2023-12-23 21:11:06,077 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2023-12-23 21:11:06,087 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-12-23 21:11:06,109 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 21:11:06,173 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 21:11:06,184 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2023-12-23 21:11:06,184 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE1#0 [2023-12-23 21:11:06,184 INFO L130 BoogieDeclarations]: Found specification of procedure assume_abort_if_not [2023-12-23 21:11:06,185 INFO L138 BoogieDeclarations]: Found implementation of procedure assume_abort_if_not [2023-12-23 21:11:06,186 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2023-12-23 21:11:06,186 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2023-12-23 21:11:06,252 INFO L241 CfgBuilder]: Building ICFG [2023-12-23 21:11:06,254 INFO L267 CfgBuilder]: Building CFG for each procedure with an implementation [2023-12-23 21:11:15,809 INFO L282 CfgBuilder]: Performing block encoding [2023-12-23 21:11:15,890 INFO L304 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2023-12-23 21:11:15,895 INFO L309 CfgBuilder]: Removed 1 assume(true) statements. [2023-12-23 21:11:15,896 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 23.12 09:11:15 BoogieIcfgContainer [2023-12-23 21:11:15,896 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2023-12-23 21:11:15,929 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2023-12-23 21:11:15,929 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2023-12-23 21:11:15,931 INFO L274 PluginConnector]: TraceAbstraction initialized [2023-12-23 21:11:15,931 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 23.12 09:11:05" (1/3) ... [2023-12-23 21:11:15,932 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@aa171e0 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 23.12 09:11:15, skipping insertion in model container [2023-12-23 21:11:15,932 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.12 09:11:05" (2/3) ... [2023-12-23 21:11:15,932 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@aa171e0 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 23.12 09:11:15, skipping insertion in model container [2023-12-23 21:11:15,932 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 23.12 09:11:15" (3/3) ... [2023-12-23 21:11:15,933 INFO L112 eAbstractionObserver]: Analyzing ICFG hardness_loopvsstraightlinecode_100-1loop_file-28.i [2023-12-23 21:11:15,945 INFO L204 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2023-12-23 21:11:15,946 INFO L163 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2023-12-23 21:11:15,978 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2023-12-23 21:11:15,983 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;@21d40c29, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2023-12-23 21:11:15,983 INFO L358 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2023-12-23 21:11:15,987 INFO L276 IsEmpty]: Start isEmpty. Operand has 107 states, 61 states have (on average 1.4098360655737705) internal successors, (86), 62 states have internal predecessors, (86), 43 states have call successors, (43), 1 states have call predecessors, (43), 1 states have return successors, (43), 43 states have call predecessors, (43), 43 states have call successors, (43) [2023-12-23 21:11:16,000 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 263 [2023-12-23 21:11:16,000 INFO L187 NwaCegarLoop]: Found error trace [2023-12-23 21:11:16,001 INFO L195 NwaCegarLoop]: trace histogram [43, 43, 43, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 21:11:16,002 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-23 21:11:16,005 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-23 21:11:16,005 INFO L85 PathProgramCache]: Analyzing trace with hash 1195529634, now seen corresponding path program 1 times [2023-12-23 21:11:16,015 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-12-23 21:11:16,015 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1778011243] [2023-12-23 21:11:16,016 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-23 21:11:16,016 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 21:11:16,016 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2023-12-23 21:11:16,018 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 21:11:16,027 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 21:11:16,601 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-23 21:11:16,626 INFO L262 TraceCheckSpWp]: Trace formula consists of 415 conjuncts, 1 conjunts are in the unsatisfiable core [2023-12-23 21:11:16,636 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-23 21:11:16,674 INFO L134 CoverageAnalysis]: Checked inductivity of 3612 backedges. 1272 proven. 0 refuted. 0 times theorem prover too weak. 2340 trivial. 0 not checked. [2023-12-23 21:11:16,674 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-12-23 21:11:16,675 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-12-23 21:11:16,675 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1778011243] [2023-12-23 21:11:16,675 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1778011243] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-23 21:11:16,675 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-23 21:11:16,676 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2023-12-23 21:11:16,677 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1718107702] [2023-12-23 21:11:16,678 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-23 21:11:16,681 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2023-12-23 21:11:16,681 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-12-23 21:11:16,698 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2023-12-23 21:11:16,699 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2023-12-23 21:11:16,701 INFO L87 Difference]: Start difference. First operand has 107 states, 61 states have (on average 1.4098360655737705) internal successors, (86), 62 states have internal predecessors, (86), 43 states have call successors, (43), 1 states have call predecessors, (43), 1 states have return successors, (43), 43 states have call predecessors, (43), 43 states have call successors, (43) Second operand has 2 states, 2 states have (on average 27.0) internal successors, (54), 2 states have internal predecessors, (54), 2 states have call successors, (43), 2 states have call predecessors, (43), 2 states have return successors, (43), 2 states have call predecessors, (43), 2 states have call successors, (43) [2023-12-23 21:11:20,936 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.17s for a HTC check with result UNKNOWN. Formula has sorts [Bool, FloatingPoint, RoundingMode, Real, BitVec], hasArrays=false, hasNonlinArith=false, quantifiers [] [2023-12-23 21:11:21,005 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-23 21:11:21,005 INFO L93 Difference]: Finished difference Result 213 states and 386 transitions. [2023-12-23 21:11:21,007 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2023-12-23 21:11:21,008 INFO L78 Accepts]: Start accepts. Automaton has has 2 states, 2 states have (on average 27.0) internal successors, (54), 2 states have internal predecessors, (54), 2 states have call successors, (43), 2 states have call predecessors, (43), 2 states have return successors, (43), 2 states have call predecessors, (43), 2 states have call successors, (43) Word has length 262 [2023-12-23 21:11:21,008 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-23 21:11:21,018 INFO L225 Difference]: With dead ends: 213 [2023-12-23 21:11:21,018 INFO L226 Difference]: Without dead ends: 105 [2023-12-23 21:11:21,021 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 261 GetRequests, 261 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 21:11:21,023 INFO L413 NwaCegarLoop]: 164 mSDtfsCounter, 0 mSDsluCounter, 0 mSDsCounter, 0 mSdLazyCounter, 4 mSolverCounterSat, 0 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 4.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 164 SdHoareTripleChecker+Invalid, 5 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 4 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 4.3s IncrementalHoareTripleChecker+Time [2023-12-23 21:11:21,024 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 164 Invalid, 5 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 4 Invalid, 1 Unknown, 0 Unchecked, 4.3s Time] [2023-12-23 21:11:21,055 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 105 states. [2023-12-23 21:11:21,089 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 105 to 105. [2023-12-23 21:11:21,091 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 105 states, 60 states have (on average 1.35) internal successors, (81), 60 states have internal predecessors, (81), 43 states have call successors, (43), 1 states have call predecessors, (43), 1 states have return successors, (43), 43 states have call predecessors, (43), 43 states have call successors, (43) [2023-12-23 21:11:21,100 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 105 states to 105 states and 167 transitions. [2023-12-23 21:11:21,101 INFO L78 Accepts]: Start accepts. Automaton has 105 states and 167 transitions. Word has length 262 [2023-12-23 21:11:21,102 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-23 21:11:21,102 INFO L495 AbstractCegarLoop]: Abstraction has 105 states and 167 transitions. [2023-12-23 21:11:21,103 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 2 states, 2 states have (on average 27.0) internal successors, (54), 2 states have internal predecessors, (54), 2 states have call successors, (43), 2 states have call predecessors, (43), 2 states have return successors, (43), 2 states have call predecessors, (43), 2 states have call successors, (43) [2023-12-23 21:11:21,103 INFO L276 IsEmpty]: Start isEmpty. Operand 105 states and 167 transitions. [2023-12-23 21:11:21,112 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 263 [2023-12-23 21:11:21,112 INFO L187 NwaCegarLoop]: Found error trace [2023-12-23 21:11:21,112 INFO L195 NwaCegarLoop]: trace histogram [43, 43, 43, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 21:11:21,139 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 21:11:21,328 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 21:11:21,329 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-23 21:11:21,330 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-23 21:11:21,330 INFO L85 PathProgramCache]: Analyzing trace with hash -1049816996, now seen corresponding path program 1 times [2023-12-23 21:11:21,330 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-12-23 21:11:21,331 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [147624414] [2023-12-23 21:11:21,331 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-23 21:11:21,331 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 21:11:21,331 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2023-12-23 21:11:21,332 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 21:11:21,351 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 21:11:21,885 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-23 21:11:21,910 INFO L262 TraceCheckSpWp]: Trace formula consists of 415 conjuncts, 6 conjunts are in the unsatisfiable core [2023-12-23 21:11:21,917 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-23 21:11:27,610 INFO L134 CoverageAnalysis]: Checked inductivity of 3612 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 3612 trivial. 0 not checked. [2023-12-23 21:11:27,610 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-12-23 21:11:27,610 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-12-23 21:11:27,611 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [147624414] [2023-12-23 21:11:27,611 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [147624414] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-23 21:11:27,611 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-23 21:11:27,611 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2023-12-23 21:11:27,611 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [286349962] [2023-12-23 21:11:27,611 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-23 21:11:27,612 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2023-12-23 21:11:27,613 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-12-23 21:11:27,614 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2023-12-23 21:11:27,614 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2023-12-23 21:11:27,614 INFO L87 Difference]: Start difference. First operand 105 states and 167 transitions. Second operand has 5 states, 5 states have (on average 10.0) internal successors, (50), 4 states have internal predecessors, (50), 1 states have call successors, (43), 1 states have call predecessors, (43), 1 states have return successors, (43), 1 states have call predecessors, (43), 1 states have call successors, (43) [2023-12-23 21:11:33,071 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.20s for a HTC check with result UNKNOWN. Formula has sorts [Bool, FloatingPoint, RoundingMode, Real, BitVec], hasArrays=false, hasNonlinArith=false, quantifiers [] [2023-12-23 21:11:37,077 WARN L539 Checker$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 21:11:41,082 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.00s for a HTC check with result UNKNOWN. Formula has sorts [Bool, FloatingPoint, RoundingMode, Real, BitVec], hasArrays=false, hasNonlinArith=false, quantifiers [] [2023-12-23 21:11:45,088 WARN L539 Checker$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 21:11:49,091 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.00s for a HTC check with result UNKNOWN. Formula has sorts [Bool, FloatingPoint, RoundingMode, Real, BitVec], hasArrays=false, hasNonlinArith=false, quantifiers [] [2023-12-23 21:11:53,098 WARN L539 Checker$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 21:11:57,115 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 21:11:57,219 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-23 21:11:57,220 INFO L93 Difference]: Finished difference Result 314 states and 500 transitions. [2023-12-23 21:11:57,220 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2023-12-23 21:11:57,221 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 10.0) internal successors, (50), 4 states have internal predecessors, (50), 1 states have call successors, (43), 1 states have call predecessors, (43), 1 states have return successors, (43), 1 states have call predecessors, (43), 1 states have call successors, (43) Word has length 262 [2023-12-23 21:11:57,222 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-23 21:11:57,225 INFO L225 Difference]: With dead ends: 314 [2023-12-23 21:11:57,225 INFO L226 Difference]: Without dead ends: 210 [2023-12-23 21:11:57,226 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 264 GetRequests, 258 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=22, Invalid=34, Unknown=0, NotChecked=0, Total=56 [2023-12-23 21:11:57,227 INFO L413 NwaCegarLoop]: 155 mSDtfsCounter, 104 mSDsluCounter, 369 mSDsCounter, 0 mSdLazyCounter, 138 mSolverCounterSat, 87 mSolverCounterUnsat, 7 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 29.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 104 SdHoareTripleChecker+Valid, 524 SdHoareTripleChecker+Invalid, 232 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 87 IncrementalHoareTripleChecker+Valid, 138 IncrementalHoareTripleChecker+Invalid, 7 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 29.4s IncrementalHoareTripleChecker+Time [2023-12-23 21:11:57,227 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [104 Valid, 524 Invalid, 232 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [87 Valid, 138 Invalid, 7 Unknown, 0 Unchecked, 29.4s Time] [2023-12-23 21:11:57,228 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 210 states. [2023-12-23 21:11:57,276 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 210 to 196. [2023-12-23 21:11:57,277 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 196 states, 107 states have (on average 1.308411214953271) internal successors, (140), 107 states have internal predecessors, (140), 86 states have call successors, (86), 2 states have call predecessors, (86), 2 states have return successors, (86), 86 states have call predecessors, (86), 86 states have call successors, (86) [2023-12-23 21:11:57,278 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 196 states to 196 states and 312 transitions. [2023-12-23 21:11:57,278 INFO L78 Accepts]: Start accepts. Automaton has 196 states and 312 transitions. Word has length 262 [2023-12-23 21:11:57,279 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-23 21:11:57,279 INFO L495 AbstractCegarLoop]: Abstraction has 196 states and 312 transitions. [2023-12-23 21:11:57,279 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 10.0) internal successors, (50), 4 states have internal predecessors, (50), 1 states have call successors, (43), 1 states have call predecessors, (43), 1 states have return successors, (43), 1 states have call predecessors, (43), 1 states have call successors, (43) [2023-12-23 21:11:57,279 INFO L276 IsEmpty]: Start isEmpty. Operand 196 states and 312 transitions. [2023-12-23 21:11:57,283 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 263 [2023-12-23 21:11:57,284 INFO L187 NwaCegarLoop]: Found error trace [2023-12-23 21:11:57,284 INFO L195 NwaCegarLoop]: trace histogram [43, 43, 43, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 21:11:57,318 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (3)] Forceful destruction successful, exit code 0 [2023-12-23 21:11:57,485 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 21:11:57,486 INFO L420 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-23 21:11:57,486 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-23 21:11:57,487 INFO L85 PathProgramCache]: Analyzing trace with hash 1470142938, now seen corresponding path program 1 times [2023-12-23 21:11:57,487 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-12-23 21:11:57,487 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1197822061] [2023-12-23 21:11:57,488 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-23 21:11:57,488 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 21:11:57,488 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2023-12-23 21:11:57,493 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 21:11:57,507 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 21:11:58,045 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-23 21:11:58,072 INFO L262 TraceCheckSpWp]: Trace formula consists of 415 conjuncts, 5 conjunts are in the unsatisfiable core [2023-12-23 21:11:58,076 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-23 21:11:59,300 INFO L134 CoverageAnalysis]: Checked inductivity of 3612 backedges. 1842 proven. 66 refuted. 0 times theorem prover too weak. 1704 trivial. 0 not checked. [2023-12-23 21:11:59,300 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-12-23 21:12:00,086 INFO L134 CoverageAnalysis]: Checked inductivity of 3612 backedges. 60 proven. 66 refuted. 0 times theorem prover too weak. 3486 trivial. 0 not checked. [2023-12-23 21:12:00,087 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-12-23 21:12:00,087 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1197822061] [2023-12-23 21:12:00,087 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1197822061] provided 0 perfect and 2 imperfect interpolant sequences [2023-12-23 21:12:00,087 INFO L185 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2023-12-23 21:12:00,087 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [6, 6] total 9 [2023-12-23 21:12:00,087 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [591867190] [2023-12-23 21:12:00,087 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2023-12-23 21:12:00,088 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2023-12-23 21:12:00,088 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-12-23 21:12:00,089 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2023-12-23 21:12:00,089 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=22, Invalid=50, Unknown=0, NotChecked=0, Total=72 [2023-12-23 21:12:00,089 INFO L87 Difference]: Start difference. First operand 196 states and 312 transitions. Second operand has 9 states, 9 states have (on average 7.888888888888889) internal successors, (71), 9 states have internal predecessors, (71), 2 states have call successors, (65), 2 states have call predecessors, (65), 4 states have return successors, (66), 2 states have call predecessors, (66), 2 states have call successors, (66) [2023-12-23 21:12:02,546 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.05s for a HTC check with result INVALID. Formula has sorts [Bool, FloatingPoint, RoundingMode, Real, BitVec], hasArrays=false, hasNonlinArith=false, quantifiers [] [2023-12-23 21:12:06,896 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.15s for a HTC check with result UNKNOWN. Formula has sorts [Bool, FloatingPoint, RoundingMode, Real, BitVec], hasArrays=false, hasNonlinArith=false, quantifiers [] [2023-12-23 21:12:10,903 WARN L539 Checker$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 21:12:14,912 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 21:12:15,004 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-23 21:12:15,004 INFO L93 Difference]: Finished difference Result 324 states and 508 transitions. [2023-12-23 21:12:15,005 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2023-12-23 21:12:15,005 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 9 states have (on average 7.888888888888889) internal successors, (71), 9 states have internal predecessors, (71), 2 states have call successors, (65), 2 states have call predecessors, (65), 4 states have return successors, (66), 2 states have call predecessors, (66), 2 states have call successors, (66) Word has length 262 [2023-12-23 21:12:15,006 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-23 21:12:15,007 INFO L225 Difference]: With dead ends: 324 [2023-12-23 21:12:15,007 INFO L226 Difference]: Without dead ends: 208 [2023-12-23 21:12:15,009 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 529 GetRequests, 515 SyntacticMatches, 1 SemanticMatches, 13 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 13 ImplicationChecksByTransitivity, 0.5s TimeCoverageRelationStatistics Valid=77, Invalid=133, Unknown=0, NotChecked=0, Total=210 [2023-12-23 21:12:15,009 INFO L413 NwaCegarLoop]: 108 mSDtfsCounter, 305 mSDsluCounter, 125 mSDsCounter, 0 mSdLazyCounter, 246 mSolverCounterSat, 305 mSolverCounterUnsat, 3 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 14.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 306 SdHoareTripleChecker+Valid, 233 SdHoareTripleChecker+Invalid, 554 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 305 IncrementalHoareTripleChecker+Valid, 246 IncrementalHoareTripleChecker+Invalid, 3 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 14.6s IncrementalHoareTripleChecker+Time [2023-12-23 21:12:15,009 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [306 Valid, 233 Invalid, 554 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [305 Valid, 246 Invalid, 3 Unknown, 0 Unchecked, 14.6s Time] [2023-12-23 21:12:15,010 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 208 states. [2023-12-23 21:12:15,028 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 208 to 204. [2023-12-23 21:12:15,029 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 204 states, 113 states have (on average 1.2300884955752212) internal successors, (139), 113 states have internal predecessors, (139), 86 states have call successors, (86), 4 states have call predecessors, (86), 4 states have return successors, (86), 86 states have call predecessors, (86), 86 states have call successors, (86) [2023-12-23 21:12:15,030 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 204 states to 204 states and 311 transitions. [2023-12-23 21:12:15,030 INFO L78 Accepts]: Start accepts. Automaton has 204 states and 311 transitions. Word has length 262 [2023-12-23 21:12:15,031 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-23 21:12:15,031 INFO L495 AbstractCegarLoop]: Abstraction has 204 states and 311 transitions. [2023-12-23 21:12:15,031 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 9 states have (on average 7.888888888888889) internal successors, (71), 9 states have internal predecessors, (71), 2 states have call successors, (65), 2 states have call predecessors, (65), 4 states have return successors, (66), 2 states have call predecessors, (66), 2 states have call successors, (66) [2023-12-23 21:12:15,032 INFO L276 IsEmpty]: Start isEmpty. Operand 204 states and 311 transitions. [2023-12-23 21:12:15,033 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 264 [2023-12-23 21:12:15,033 INFO L187 NwaCegarLoop]: Found error trace [2023-12-23 21:12:15,034 INFO L195 NwaCegarLoop]: trace histogram [43, 43, 43, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 21:12:15,048 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 (4)] Ended with exit code 0 [2023-12-23 21:12:15,247 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 21:12:15,248 INFO L420 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-23 21:12:15,248 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-23 21:12:15,249 INFO L85 PathProgramCache]: Analyzing trace with hash -2088365110, now seen corresponding path program 1 times [2023-12-23 21:12:15,249 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-12-23 21:12:15,249 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [846304286] [2023-12-23 21:12:15,249 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-23 21:12:15,249 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 21:12:15,249 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2023-12-23 21:12:15,250 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 21:12:15,274 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 21:12:16,100 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-23 21:12:16,126 INFO L262 TraceCheckSpWp]: Trace formula consists of 416 conjuncts, 43 conjunts are in the unsatisfiable core [2023-12-23 21:12:16,134 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-23 21:14:23,388 WARN L293 SmtUtils]: Spent 35.05s on a formula simplification that was a NOOP. DAG size: 92 (called from [L 391] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate) [2023-12-23 21:14:31,542 WARN L293 SmtUtils]: Spent 8.13s on a formula simplification that was a NOOP. DAG size: 3 (called from [L 731] de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher.simplify) [2023-12-23 21:14:37,927 WARN L293 SmtUtils]: Spent 6.38s on a formula simplification that was a NOOP. DAG size: 13 (called from [L 731] de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher.simplify) [2023-12-23 21:14:44,493 WARN L293 SmtUtils]: Spent 6.57s on a formula simplification that was a NOOP. DAG size: 3 (called from [L 731] de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher.simplify) [2023-12-23 21:14:53,590 WARN L293 SmtUtils]: Spent 5.12s on a formula simplification that was a NOOP. DAG size: 4 (called from [L 731] de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher.simplify) [2023-12-23 21:15:01,723 WARN L293 SmtUtils]: Spent 8.13s on a formula simplification that was a NOOP. DAG size: 5 (called from [L 731] de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher.simplify) [2023-12-23 21:15:08,604 WARN L293 SmtUtils]: Spent 6.88s on a formula simplification that was a NOOP. DAG size: 5 (called from [L 731] de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher.simplify) [2023-12-23 21:15:16,428 WARN L293 SmtUtils]: Spent 7.82s on a formula simplification that was a NOOP. DAG size: 8 (called from [L 731] de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher.simplify) [2023-12-23 21:15:24,559 WARN L293 SmtUtils]: Spent 8.13s on a formula simplification that was a NOOP. DAG size: 8 (called from [L 731] de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher.simplify) [2023-12-23 21:15:31,000 WARN L293 SmtUtils]: Spent 6.44s on a formula simplification that was a NOOP. DAG size: 5 (called from [L 731] de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher.simplify) [2023-12-23 21:15:37,710 WARN L293 SmtUtils]: Spent 6.71s on a formula simplification that was a NOOP. DAG size: 4 (called from [L 731] de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher.simplify) [2023-12-23 21:15:43,630 WARN L293 SmtUtils]: Spent 5.92s on a formula simplification that was a NOOP. DAG size: 5 (called from [L 731] de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher.simplify) [2023-12-23 21:15:51,761 WARN L293 SmtUtils]: Spent 8.13s on a formula simplification that was a NOOP. DAG size: 3 (called from [L 731] de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher.simplify) [2023-12-23 21:16:03,671 WARN L293 SmtUtils]: Spent 7.01s on a formula simplification that was a NOOP. DAG size: 4 (called from [L 731] de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher.simplify) [2023-12-23 21:16:10,568 WARN L293 SmtUtils]: Spent 6.90s on a formula simplification that was a NOOP. DAG size: 3 (called from [L 731] de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher.simplify) [2023-12-23 21:16:18,095 WARN L293 SmtUtils]: Spent 7.53s on a formula simplification that was a NOOP. DAG size: 6 (called from [L 731] de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher.simplify) [2023-12-23 21:16:26,218 WARN L293 SmtUtils]: Spent 8.12s on a formula simplification that was a NOOP. DAG size: 4 (called from [L 731] de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher.simplify) [2023-12-23 21:16:32,714 WARN L293 SmtUtils]: Spent 6.50s on a formula simplification that was a NOOP. DAG size: 5 (called from [L 731] de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher.simplify) [2023-12-23 21:16:40,452 WARN L293 SmtUtils]: Spent 7.74s on a formula simplification that was a NOOP. DAG size: 5 (called from [L 731] de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher.simplify) [2023-12-23 21:16:47,937 WARN L293 SmtUtils]: Spent 7.48s on a formula simplification that was a NOOP. DAG size: 5 (called from [L 731] de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher.simplify) [2023-12-23 21:16:56,063 WARN L293 SmtUtils]: Spent 8.13s on a formula simplification that was a NOOP. DAG size: 3 (called from [L 731] de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher.simplify) [2023-12-23 21:17:04,012 WARN L293 SmtUtils]: Spent 7.95s on a formula simplification that was a NOOP. DAG size: 5 (called from [L 731] de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher.simplify) [2023-12-23 21:17:10,625 WARN L293 SmtUtils]: Spent 6.61s on a formula simplification that was a NOOP. DAG size: 4 (called from [L 731] de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher.simplify) [2023-12-23 21:17:17,279 WARN L293 SmtUtils]: Spent 6.65s on a formula simplification that was a NOOP. DAG size: 5 (called from [L 731] de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher.simplify) [2023-12-23 21:17:29,113 WARN L293 SmtUtils]: Spent 8.29s on a formula simplification that was a NOOP. DAG size: 7 (called from [L 731] de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher.simplify) [2023-12-23 21:17:36,899 WARN L293 SmtUtils]: Spent 7.78s on a formula simplification that was a NOOP. DAG size: 7 (called from [L 731] de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher.simplify) [2023-12-23 21:17:44,951 WARN L293 SmtUtils]: Spent 8.05s on a formula simplification that was a NOOP. DAG size: 3 (called from [L 731] de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher.simplify) [2023-12-23 21:17:52,607 WARN L293 SmtUtils]: Spent 7.66s on a formula simplification that was a NOOP. DAG size: 5 (called from [L 731] de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher.simplify) [2023-12-23 21:17:59,090 WARN L293 SmtUtils]: Spent 6.48s on a formula simplification that was a NOOP. DAG size: 5 (called from [L 731] de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher.simplify) [2023-12-23 21:18:06,496 WARN L293 SmtUtils]: Spent 7.40s on a formula simplification that was a NOOP. DAG size: 5 (called from [L 731] de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher.simplify) [2023-12-23 21:18:14,145 WARN L293 SmtUtils]: Spent 7.65s on a formula simplification that was a NOOP. DAG size: 5 (called from [L 731] de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher.simplify) [2023-12-23 21:18:21,308 WARN L293 SmtUtils]: Spent 7.16s on a formula simplification that was a NOOP. DAG size: 6 (called from [L 731] de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher.simplify) [2023-12-23 21:18:29,246 WARN L293 SmtUtils]: Spent 7.94s on a formula simplification that was a NOOP. DAG size: 6 (called from [L 731] de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher.simplify) [2023-12-23 21:22:15,317 WARN L293 SmtUtils]: Spent 2.56m on a formula simplification that was a NOOP. DAG size: 105 (called from [L 391] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate) [2023-12-23 21:22:27,419 WARN L293 SmtUtils]: Spent 8.09s on a formula simplification that was a NOOP. DAG size: 13 (called from [L 731] de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher.simplify) [2023-12-23 21:22:33,430 WARN L293 SmtUtils]: Spent 6.01s on a formula simplification that was a NOOP. DAG size: 3 (called from [L 731] de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher.simplify) [2023-12-23 21:22:40,133 WARN L293 SmtUtils]: Spent 6.70s on a formula simplification that was a NOOP. DAG size: 5 (called from [L 731] de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher.simplify) [2023-12-23 21:22:46,804 WARN L293 SmtUtils]: Spent 6.67s on a formula simplification that was a NOOP. DAG size: 4 (called from [L 731] de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher.simplify) [2023-12-23 21:22:53,864 WARN L293 SmtUtils]: Spent 7.06s on a formula simplification that was a NOOP. DAG size: 5 (called from [L 731] de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher.simplify) [2023-12-23 21:23:00,435 WARN L293 SmtUtils]: Spent 6.57s on a formula simplification that was a NOOP. DAG size: 5 (called from [L 731] de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher.simplify) [2023-12-23 21:23:08,324 WARN L293 SmtUtils]: Spent 7.89s on a formula simplification that was a NOOP. DAG size: 8 (called from [L 731] de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher.simplify) [2023-12-23 21:23:16,470 WARN L293 SmtUtils]: Spent 8.15s on a formula simplification that was a NOOP. DAG size: 8 (called from [L 731] de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher.simplify) [2023-12-23 21:23:23,558 WARN L293 SmtUtils]: Spent 7.09s on a formula simplification that was a NOOP. DAG size: 5 (called from [L 731] de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher.simplify) [2023-12-23 21:23:29,380 WARN L293 SmtUtils]: Spent 5.82s on a formula simplification that was a NOOP. DAG size: 4 (called from [L 731] de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher.simplify) [2023-12-23 21:23:38,936 WARN L293 SmtUtils]: Spent 5.63s on a formula simplification that was a NOOP. DAG size: 3 (called from [L 731] de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher.simplify) [2023-12-23 21:23:46,797 WARN L293 SmtUtils]: Spent 7.86s on a formula simplification that was a NOOP. DAG size: 5 (called from [L 731] de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher.simplify) [2023-12-23 21:23:53,172 WARN L293 SmtUtils]: Spent 6.37s on a formula simplification that was a NOOP. DAG size: 4 (called from [L 731] de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher.simplify) [2023-12-23 21:24:00,532 WARN L293 SmtUtils]: Spent 7.36s on a formula simplification that was a NOOP. DAG size: 3 (called from [L 731] de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher.simplify) [2023-12-23 21:24:07,808 WARN L293 SmtUtils]: Spent 7.27s on a formula simplification that was a NOOP. DAG size: 6 (called from [L 731] de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher.simplify) [2023-12-23 21:24:14,404 WARN L293 SmtUtils]: Spent 6.60s on a formula simplification that was a NOOP. DAG size: 4 (called from [L 731] de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher.simplify) [2023-12-23 21:24:22,549 WARN L293 SmtUtils]: Spent 8.14s on a formula simplification that was a NOOP. DAG size: 5 (called from [L 731] de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher.simplify) [2023-12-23 21:24:34,942 WARN L293 SmtUtils]: Spent 8.14s on a formula simplification that was a NOOP. DAG size: 5 (called from [L 731] de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher.simplify) [2023-12-23 21:24:41,169 WARN L293 SmtUtils]: Spent 6.23s on a formula simplification that was a NOOP. DAG size: 3 (called from [L 731] de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher.simplify) [2023-12-23 21:24:50,908 WARN L293 SmtUtils]: Spent 5.82s on a formula simplification that was a NOOP. DAG size: 4 (called from [L 731] de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher.simplify) [2023-12-23 21:24:58,436 WARN L293 SmtUtils]: Spent 7.53s on a formula simplification that was a NOOP. DAG size: 5 (called from [L 731] de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher.simplify) [2023-12-23 21:25:10,621 WARN L293 SmtUtils]: Spent 8.14s on a formula simplification that was a NOOP. DAG size: 7 (called from [L 731] de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher.simplify) [2023-12-23 21:25:18,750 WARN L293 SmtUtils]: Spent 8.13s on a formula simplification that was a NOOP. DAG size: 7 (called from [L 731] de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher.simplify) [2023-12-23 21:25:25,184 WARN L293 SmtUtils]: Spent 6.43s on a formula simplification that was a NOOP. DAG size: 3 (called from [L 731] de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher.simplify) [2023-12-23 21:25:33,181 WARN L293 SmtUtils]: Spent 8.00s on a formula simplification that was a NOOP. DAG size: 5 (called from [L 731] de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher.simplify) [2023-12-23 21:25:41,263 WARN L293 SmtUtils]: Spent 8.08s on a formula simplification that was a NOOP. DAG size: 5 (called from [L 731] de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher.simplify) [2023-12-23 21:25:47,956 WARN L293 SmtUtils]: Spent 6.69s on a formula simplification that was a NOOP. DAG size: 5 (called from [L 731] de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher.simplify) Received shutdown request... [2023-12-23 21:25:50,665 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 (5)] Timeout while monitored process is still running, waiting 1000 ms for graceful end [2023-12-23 21:25:50,670 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 21:25:51,683 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 21:25:51,871 WARN L435 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (1)] Forcibly destroying the process [2023-12-23 21:25:51,905 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (1)] Forceful destruction successful, exit code 137 [2023-12-23 21:25:51,908 INFO L805 garLoopResultBuilder]: Registering result TIMEOUT for location ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION (0 of 1 remaining) [2023-12-23 21:25:51,908 WARN L619 AbstractCegarLoop]: Verification canceled: while NwaCegarLoop was analyzing trace of length 264 with TraceHistMax 43,while TraceCheckSpWp was constructing forward predicates,while executing Executor. [2023-12-23 21:25:51,911 INFO L445 BasicCegarLoop]: Path program histogram: [1, 1, 1, 1] [2023-12-23 21:25:51,913 INFO L179 ceAbstractionStarter]: Computing trace abstraction results [2023-12-23 21:25:51,914 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 23.12 09:25:51 BoogieIcfgContainer [2023-12-23 21:25:51,914 INFO L131 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2023-12-23 21:25:51,914 INFO L158 Benchmark]: Toolchain (without parser) took 886248.88ms. Allocated memory was 230.7MB in the beginning and 276.8MB in the end (delta: 46.1MB). Free memory was 163.7MB in the beginning and 196.6MB in the end (delta: -32.9MB). Peak memory consumption was 139.5MB. Max. memory is 8.0GB. [2023-12-23 21:25:51,915 INFO L158 Benchmark]: CDTParser took 0.15ms. Allocated memory is still 230.7MB. Free memory is still 179.5MB. There was no memory consumed. Max. memory is 8.0GB. [2023-12-23 21:25:51,915 INFO L158 Benchmark]: CACSL2BoogieTranslator took 300.21ms. Allocated memory is still 230.7MB. Free memory was 163.6MB in the beginning and 145.3MB in the end (delta: 18.3MB). Peak memory consumption was 18.9MB. Max. memory is 8.0GB. [2023-12-23 21:25:51,915 INFO L158 Benchmark]: Boogie Procedure Inliner took 46.20ms. Allocated memory is still 230.7MB. Free memory was 145.3MB in the beginning and 142.1MB in the end (delta: 3.1MB). Peak memory consumption was 3.1MB. Max. memory is 8.0GB. [2023-12-23 21:25:51,937 INFO L158 Benchmark]: Boogie Preprocessor took 57.28ms. Allocated memory is still 230.7MB. Free memory was 142.1MB in the beginning and 137.5MB in the end (delta: 4.6MB). Peak memory consumption was 4.2MB. Max. memory is 8.0GB. [2023-12-23 21:25:51,937 INFO L158 Benchmark]: RCFGBuilder took 9823.14ms. Allocated memory is still 230.7MB. Free memory was 137.5MB in the beginning and 105.9MB in the end (delta: 31.6MB). Peak memory consumption was 31.5MB. Max. memory is 8.0GB. [2023-12-23 21:25:51,937 INFO L158 Benchmark]: TraceAbstraction took 875985.43ms. Allocated memory is still 276.8MB. Free memory was 239.9MB in the beginning and 196.6MB in the end (delta: 43.3MB). Peak memory consumption was 168.1MB. Max. memory is 8.0GB. [2023-12-23 21:25:51,938 INFO L338 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.15ms. Allocated memory is still 230.7MB. Free memory is still 179.5MB. There was no memory consumed. Max. memory is 8.0GB. * CACSL2BoogieTranslator took 300.21ms. Allocated memory is still 230.7MB. Free memory was 163.6MB in the beginning and 145.3MB in the end (delta: 18.3MB). Peak memory consumption was 18.9MB. Max. memory is 8.0GB. * Boogie Procedure Inliner took 46.20ms. Allocated memory is still 230.7MB. Free memory was 145.3MB in the beginning and 142.1MB in the end (delta: 3.1MB). Peak memory consumption was 3.1MB. Max. memory is 8.0GB. * Boogie Preprocessor took 57.28ms. Allocated memory is still 230.7MB. Free memory was 142.1MB in the beginning and 137.5MB in the end (delta: 4.6MB). Peak memory consumption was 4.2MB. Max. memory is 8.0GB. * RCFGBuilder took 9823.14ms. Allocated memory is still 230.7MB. Free memory was 137.5MB in the beginning and 105.9MB in the end (delta: 31.6MB). Peak memory consumption was 31.5MB. Max. memory is 8.0GB. * TraceAbstraction took 875985.43ms. Allocated memory is still 276.8MB. Free memory was 239.9MB in the beginning and 196.6MB in the end (delta: 43.3MB). Peak memory consumption was 168.1MB. 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 264 with TraceHistMax 43,while TraceCheckSpWp was constructing forward predicates,while executing Executor. - StatisticsResult: Ultimate Automizer benchmark data CFG has 2 procedures, 107 locations, 1 error locations. Started 1 CEGAR loops. OverallTime: 875.9s, OverallIterations: 4, TraceHistogramMax: 43, PathProgramHistogramMax: 1, EmptinessCheckTime: 0.0s, AutomataDifference: 48.9s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 11 mSolverCounterUnknown, 410 SdHoareTripleChecker+Valid, 48.3s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 409 mSDsluCounter, 921 SdHoareTripleChecker+Invalid, 47.8s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 494 mSDsCounter, 392 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 388 IncrementalHoareTripleChecker+Invalid, 791 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 392 mSolverCounterUnsat, 427 mSDtfsCounter, 388 mSolverCounterSat, 0.0s SdHoareTripleChecker+Time, 11 IncrementalHoareTripleChecker+Unknown, PredicateUnifierStatistics: 0 DeclaredPredicates, 1054 GetRequests, 1034 SyntacticMatches, 1 SemanticMatches, 19 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 15 ImplicationChecksByTransitivity, 0.7s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=204occurred in iteration=3, InterpolantAutomatonStates: 17, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: 0.1s AutomataMinimizationTime, 3 MinimizatonAttempts, 18 StatesRemovedByMinimization, 2 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.1s SsaConstructionTime, 1.4s SatisfiabilityAnalysisTime, 7.8s InterpolantComputationTime, 786 NumberOfCodeBlocks, 786 NumberOfCodeBlocksAsserted, 3 NumberOfCheckSat, 1044 ConstructedInterpolants, 0 QuantifiedInterpolants, 3933 SizeOfPredicates, 7 NumberOfNonLiveVariables, 1245 ConjunctsInSsa, 12 ConjunctsInUnsatCore, 4 InterpolantComputations, 2 PerfectInterpolantSequences, 14316/14448 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