/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-250_file-69.i -------------------------------------------------------------------------------- This is Ultimate 0.2.4-tmp.fs.bitabs-eval-d9c3e40-m [2023-12-23 02:47:00,230 INFO L188 SettingsManager]: Resetting all preferences to default values... [2023-12-23 02:47:00,271 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 02:47:00,275 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2023-12-23 02:47:00,275 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2023-12-23 02:47:00,289 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2023-12-23 02:47:00,289 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2023-12-23 02:47:00,289 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2023-12-23 02:47:00,290 INFO L151 SettingsManager]: Preferences of Boogie Preprocessor differ from their defaults: [2023-12-23 02:47:00,290 INFO L153 SettingsManager]: * Use memory slicer=true [2023-12-23 02:47:00,290 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2023-12-23 02:47:00,291 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2023-12-23 02:47:00,291 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2023-12-23 02:47:00,291 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2023-12-23 02:47:00,291 INFO L153 SettingsManager]: * Use SBE=true [2023-12-23 02:47:00,292 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2023-12-23 02:47:00,292 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2023-12-23 02:47:00,292 INFO L153 SettingsManager]: * sizeof long=4 [2023-12-23 02:47:00,293 INFO L153 SettingsManager]: * sizeof POINTER=4 [2023-12-23 02:47:00,293 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2023-12-23 02:47:00,293 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2023-12-23 02:47:00,293 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2023-12-23 02:47:00,294 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2023-12-23 02:47:00,294 INFO L153 SettingsManager]: * Adapt memory model on pointer casts if necessary=true [2023-12-23 02:47:00,294 INFO L153 SettingsManager]: * Use bitvectors instead of ints=true [2023-12-23 02:47:00,294 INFO L153 SettingsManager]: * Allow undefined functions=false [2023-12-23 02:47:00,295 INFO L153 SettingsManager]: * Memory model=HoenickeLindenmann_4ByteResolution [2023-12-23 02:47:00,295 INFO L153 SettingsManager]: * sizeof long double=12 [2023-12-23 02:47:00,295 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2023-12-23 02:47:00,295 INFO L153 SettingsManager]: * Use constant arrays=true [2023-12-23 02:47:00,296 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2023-12-23 02:47:00,296 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2023-12-23 02:47:00,296 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2023-12-23 02:47:00,296 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2023-12-23 02:47:00,297 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2023-12-23 02:47:00,297 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2023-12-23 02:47:00,297 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2023-12-23 02:47:00,297 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2023-12-23 02:47:00,298 INFO L153 SettingsManager]: * Trace refinement strategy=WOLF [2023-12-23 02:47:00,298 INFO L153 SettingsManager]: * Command for external solver=cvc4 --incremental --print-success --lang smt [2023-12-23 02:47:00,298 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2023-12-23 02:47:00,299 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2023-12-23 02:47:00,299 INFO L153 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2023-12-23 02:47:00,299 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2023-12-23 02:47:00,299 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2023-12-23 02:47:00,300 INFO L153 SettingsManager]: * Logic for external solver=AUFBV [2023-12-23 02:47:00,300 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release [2023-12-23 02:47:00,432 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2023-12-23 02:47:00,446 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2023-12-23 02:47:00,447 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2023-12-23 02:47:00,448 INFO L270 PluginConnector]: Initializing CDTParser... [2023-12-23 02:47:00,448 INFO L274 PluginConnector]: CDTParser initialized [2023-12-23 02:47:00,449 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/hardness-nfm22/hardness_fillercode_fillercodesize_ps-cn-250_file-69.i [2023-12-23 02:47:01,547 INFO L533 CDTParser]: Created temporary CDT project at NULL [2023-12-23 02:47:01,726 INFO L384 CDTParser]: Found 1 translation units. [2023-12-23 02:47:01,727 INFO L180 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/hardness-nfm22/hardness_fillercode_fillercodesize_ps-cn-250_file-69.i [2023-12-23 02:47:01,742 INFO L427 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/19bf7edfa/a1038bc39bc24b91abe4643053371188/FLAG962f9711c [2023-12-23 02:47:01,753 INFO L435 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/19bf7edfa/a1038bc39bc24b91abe4643053371188 [2023-12-23 02:47:01,755 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2023-12-23 02:47:01,756 INFO L133 ToolchainWalker]: Walking toolchain with 5 elements. [2023-12-23 02:47:01,759 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2023-12-23 02:47:01,759 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2023-12-23 02:47:01,763 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2023-12-23 02:47:01,763 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 23.12 02:47:01" (1/1) ... [2023-12-23 02:47:01,764 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@514aa12c and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.12 02:47:01, skipping insertion in model container [2023-12-23 02:47:01,764 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 23.12 02:47:01" (1/1) ... [2023-12-23 02:47:01,803 INFO L177 MainTranslator]: Built tables and reachable declarations [2023-12-23 02:47:01,899 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-250_file-69.i[916,929] [2023-12-23 02:47:02,046 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-12-23 02:47:02,061 INFO L202 MainTranslator]: Completed pre-run [2023-12-23 02:47:02,074 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-250_file-69.i[916,929] [2023-12-23 02:47:02,136 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-12-23 02:47:02,151 INFO L206 MainTranslator]: Completed translation [2023-12-23 02:47:02,151 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.12 02:47:02 WrapperNode [2023-12-23 02:47:02,151 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2023-12-23 02:47:02,152 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2023-12-23 02:47:02,152 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2023-12-23 02:47:02,152 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2023-12-23 02:47:02,157 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.12 02:47:02" (1/1) ... [2023-12-23 02:47:02,175 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.12 02:47:02" (1/1) ... [2023-12-23 02:47:02,212 INFO L138 Inliner]: procedures = 27, calls = 95, calls flagged for inlining = 8, calls inlined = 8, statements flattened = 476 [2023-12-23 02:47:02,212 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2023-12-23 02:47:02,213 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2023-12-23 02:47:02,213 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2023-12-23 02:47:02,213 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2023-12-23 02:47:02,229 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.12 02:47:02" (1/1) ... [2023-12-23 02:47:02,229 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.12 02:47:02" (1/1) ... [2023-12-23 02:47:02,234 INFO L184 PluginConnector]: Executing the observer MemorySlicer from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.12 02:47:02" (1/1) ... [2023-12-23 02:47:02,251 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 02:47:02,251 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.12 02:47:02" (1/1) ... [2023-12-23 02:47:02,252 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.12 02:47:02" (1/1) ... [2023-12-23 02:47:02,264 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.12 02:47:02" (1/1) ... [2023-12-23 02:47:02,267 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.12 02:47:02" (1/1) ... [2023-12-23 02:47:02,272 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.12 02:47:02" (1/1) ... [2023-12-23 02:47:02,275 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.12 02:47:02" (1/1) ... [2023-12-23 02:47:02,280 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2023-12-23 02:47:02,280 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2023-12-23 02:47:02,281 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2023-12-23 02:47:02,281 INFO L274 PluginConnector]: RCFGBuilder initialized [2023-12-23 02:47:02,281 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.12 02:47:02" (1/1) ... [2023-12-23 02:47:02,285 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2023-12-23 02:47:02,309 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-12-23 02:47:02,351 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 02:47:02,371 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 02:47:02,381 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2023-12-23 02:47:02,382 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE1#0 [2023-12-23 02:47:02,382 INFO L130 BoogieDeclarations]: Found specification of procedure assume_abort_if_not [2023-12-23 02:47:02,382 INFO L138 BoogieDeclarations]: Found implementation of procedure assume_abort_if_not [2023-12-23 02:47:02,382 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2023-12-23 02:47:02,382 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2023-12-23 02:47:02,468 INFO L241 CfgBuilder]: Building ICFG [2023-12-23 02:47:02,470 INFO L267 CfgBuilder]: Building CFG for each procedure with an implementation [2023-12-23 02:47:09,285 INFO L282 CfgBuilder]: Performing block encoding [2023-12-23 02:47:09,355 INFO L304 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2023-12-23 02:47:09,355 INFO L309 CfgBuilder]: Removed 1 assume(true) statements. [2023-12-23 02:47:09,355 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 23.12 02:47:09 BoogieIcfgContainer [2023-12-23 02:47:09,355 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2023-12-23 02:47:09,357 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2023-12-23 02:47:09,357 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2023-12-23 02:47:09,359 INFO L274 PluginConnector]: TraceAbstraction initialized [2023-12-23 02:47:09,359 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 23.12 02:47:01" (1/3) ... [2023-12-23 02:47:09,360 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@52b10299 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 23.12 02:47:09, skipping insertion in model container [2023-12-23 02:47:09,360 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.12 02:47:02" (2/3) ... [2023-12-23 02:47:09,360 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@52b10299 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 23.12 02:47:09, skipping insertion in model container [2023-12-23 02:47:09,360 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 23.12 02:47:09" (3/3) ... [2023-12-23 02:47:09,361 INFO L112 eAbstractionObserver]: Analyzing ICFG hardness_fillercode_fillercodesize_ps-cn-250_file-69.i [2023-12-23 02:47:09,376 INFO L204 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2023-12-23 02:47:09,377 INFO L163 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2023-12-23 02:47:09,432 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2023-12-23 02:47:09,439 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;@18b144a, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2023-12-23 02:47:09,440 INFO L358 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2023-12-23 02:47:09,445 INFO L276 IsEmpty]: Start isEmpty. Operand has 202 states, 117 states have (on average 1.5213675213675213) internal successors, (178), 118 states have internal predecessors, (178), 82 states have call successors, (82), 1 states have call predecessors, (82), 1 states have return successors, (82), 82 states have call predecessors, (82), 82 states have call successors, (82) [2023-12-23 02:47:09,465 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 504 [2023-12-23 02:47:09,465 INFO L187 NwaCegarLoop]: Found error trace [2023-12-23 02:47:09,466 INFO L195 NwaCegarLoop]: trace histogram [82, 82, 82, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 02:47:09,466 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-23 02:47:09,470 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-23 02:47:09,470 INFO L85 PathProgramCache]: Analyzing trace with hash 2146745854, now seen corresponding path program 1 times [2023-12-23 02:47:09,486 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-12-23 02:47:09,486 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [34727638] [2023-12-23 02:47:09,487 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-23 02:47:09,487 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 02:47:09,488 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2023-12-23 02:47:09,491 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 02:47:09,494 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 02:47:10,333 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-23 02:47:10,383 INFO L262 TraceCheckSpWp]: Trace formula consists of 811 conjuncts, 1 conjunts are in the unsatisfiable core [2023-12-23 02:47:10,398 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-23 02:47:10,473 INFO L134 CoverageAnalysis]: Checked inductivity of 13284 backedges. 3914 proven. 0 refuted. 0 times theorem prover too weak. 9370 trivial. 0 not checked. [2023-12-23 02:47:10,474 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-12-23 02:47:10,475 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-12-23 02:47:10,475 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [34727638] [2023-12-23 02:47:10,475 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [34727638] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-23 02:47:10,475 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-23 02:47:10,475 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2023-12-23 02:47:10,477 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [138335737] [2023-12-23 02:47:10,477 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-23 02:47:10,493 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2023-12-23 02:47:10,493 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-12-23 02:47:10,516 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2023-12-23 02:47:10,517 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2023-12-23 02:47:10,520 INFO L87 Difference]: Start difference. First operand has 202 states, 117 states have (on average 1.5213675213675213) internal successors, (178), 118 states have internal predecessors, (178), 82 states have call successors, (82), 1 states have call predecessors, (82), 1 states have return successors, (82), 82 states have call predecessors, (82), 82 states have call successors, (82) Second operand has 2 states, 2 states have (on average 50.0) internal successors, (100), 2 states have internal predecessors, (100), 2 states have call successors, (82), 2 states have call predecessors, (82), 2 states have return successors, (82), 2 states have call predecessors, (82), 2 states have call successors, (82) [2023-12-23 02:47:10,593 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-23 02:47:10,594 INFO L93 Difference]: Finished difference Result 401 states and 764 transitions. [2023-12-23 02:47:10,597 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2023-12-23 02:47:10,598 INFO L78 Accepts]: Start accepts. Automaton has has 2 states, 2 states have (on average 50.0) internal successors, (100), 2 states have internal predecessors, (100), 2 states have call successors, (82), 2 states have call predecessors, (82), 2 states have return successors, (82), 2 states have call predecessors, (82), 2 states have call successors, (82) Word has length 503 [2023-12-23 02:47:10,599 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-23 02:47:10,605 INFO L225 Difference]: With dead ends: 401 [2023-12-23 02:47:10,605 INFO L226 Difference]: Without dead ends: 200 [2023-12-23 02:47:10,609 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 502 GetRequests, 502 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 02:47:10,611 INFO L413 NwaCegarLoop]: 334 mSDtfsCounter, 0 mSDsluCounter, 0 mSDsCounter, 0 mSdLazyCounter, 3 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 334 SdHoareTripleChecker+Invalid, 3 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 3 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2023-12-23 02:47:10,612 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 334 Invalid, 3 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 3 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2023-12-23 02:47:10,625 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 200 states. [2023-12-23 02:47:10,661 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 200 to 200. [2023-12-23 02:47:10,662 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 200 states, 116 states have (on average 1.4913793103448276) internal successors, (173), 116 states have internal predecessors, (173), 82 states have call successors, (82), 1 states have call predecessors, (82), 1 states have return successors, (82), 82 states have call predecessors, (82), 82 states have call successors, (82) [2023-12-23 02:47:10,664 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 200 states to 200 states and 337 transitions. [2023-12-23 02:47:10,666 INFO L78 Accepts]: Start accepts. Automaton has 200 states and 337 transitions. Word has length 503 [2023-12-23 02:47:10,666 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-23 02:47:10,666 INFO L495 AbstractCegarLoop]: Abstraction has 200 states and 337 transitions. [2023-12-23 02:47:10,666 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 2 states, 2 states have (on average 50.0) internal successors, (100), 2 states have internal predecessors, (100), 2 states have call successors, (82), 2 states have call predecessors, (82), 2 states have return successors, (82), 2 states have call predecessors, (82), 2 states have call successors, (82) [2023-12-23 02:47:10,667 INFO L276 IsEmpty]: Start isEmpty. Operand 200 states and 337 transitions. [2023-12-23 02:47:10,675 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 504 [2023-12-23 02:47:10,675 INFO L187 NwaCegarLoop]: Found error trace [2023-12-23 02:47:10,675 INFO L195 NwaCegarLoop]: trace histogram [82, 82, 82, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 02:47:10,699 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (2)] Ended with exit code 0 [2023-12-23 02:47:10,897 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 02:47:10,898 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-23 02:47:10,898 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-23 02:47:10,899 INFO L85 PathProgramCache]: Analyzing trace with hash 1476550138, now seen corresponding path program 1 times [2023-12-23 02:47:10,900 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-12-23 02:47:10,900 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1310360003] [2023-12-23 02:47:10,900 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-23 02:47:10,900 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 02:47:10,901 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2023-12-23 02:47:10,917 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 02:47:10,918 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 02:47:11,708 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-23 02:47:11,762 INFO L262 TraceCheckSpWp]: Trace formula consists of 811 conjuncts, 2 conjunts are in the unsatisfiable core [2023-12-23 02:47:11,805 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-23 02:47:11,857 INFO L134 CoverageAnalysis]: Checked inductivity of 13284 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 13284 trivial. 0 not checked. [2023-12-23 02:47:11,857 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-12-23 02:47:11,858 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-12-23 02:47:11,858 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1310360003] [2023-12-23 02:47:11,858 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1310360003] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-23 02:47:11,858 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-23 02:47:11,858 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2023-12-23 02:47:11,858 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [930630918] [2023-12-23 02:47:11,858 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-23 02:47:11,873 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-12-23 02:47:11,873 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-12-23 02:47:11,874 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-12-23 02:47:11,875 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-12-23 02:47:11,875 INFO L87 Difference]: Start difference. First operand 200 states and 337 transitions. Second operand has 3 states, 3 states have (on average 32.0) internal successors, (96), 3 states have internal predecessors, (96), 1 states have call successors, (82), 1 states have call predecessors, (82), 1 states have return successors, (82), 1 states have call predecessors, (82), 1 states have call successors, (82) [2023-12-23 02:47:12,013 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-23 02:47:12,013 INFO L93 Difference]: Finished difference Result 506 states and 856 transitions. [2023-12-23 02:47:12,014 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-12-23 02:47:12,014 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 32.0) internal successors, (96), 3 states have internal predecessors, (96), 1 states have call successors, (82), 1 states have call predecessors, (82), 1 states have return successors, (82), 1 states have call predecessors, (82), 1 states have call successors, (82) Word has length 503 [2023-12-23 02:47:12,020 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-23 02:47:12,025 INFO L225 Difference]: With dead ends: 506 [2023-12-23 02:47:12,026 INFO L226 Difference]: Without dead ends: 307 [2023-12-23 02:47:12,027 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 502 GetRequests, 501 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-12-23 02:47:12,028 INFO L413 NwaCegarLoop]: 418 mSDtfsCounter, 180 mSDsluCounter, 307 mSDsCounter, 0 mSdLazyCounter, 28 mSolverCounterSat, 11 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 180 SdHoareTripleChecker+Valid, 725 SdHoareTripleChecker+Invalid, 39 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 11 IncrementalHoareTripleChecker+Valid, 28 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2023-12-23 02:47:12,028 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [180 Valid, 725 Invalid, 39 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [11 Valid, 28 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2023-12-23 02:47:12,030 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 307 states. [2023-12-23 02:47:12,083 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 307 to 304. [2023-12-23 02:47:12,085 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 304 states, 190 states have (on average 1.5263157894736843) internal successors, (290), 191 states have internal predecessors, (290), 111 states have call successors, (111), 2 states have call predecessors, (111), 2 states have return successors, (111), 110 states have call predecessors, (111), 111 states have call successors, (111) [2023-12-23 02:47:12,088 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 304 states to 304 states and 512 transitions. [2023-12-23 02:47:12,088 INFO L78 Accepts]: Start accepts. Automaton has 304 states and 512 transitions. Word has length 503 [2023-12-23 02:47:12,090 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-23 02:47:12,090 INFO L495 AbstractCegarLoop]: Abstraction has 304 states and 512 transitions. [2023-12-23 02:47:12,091 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 32.0) internal successors, (96), 3 states have internal predecessors, (96), 1 states have call successors, (82), 1 states have call predecessors, (82), 1 states have return successors, (82), 1 states have call predecessors, (82), 1 states have call successors, (82) [2023-12-23 02:47:12,091 INFO L276 IsEmpty]: Start isEmpty. Operand 304 states and 512 transitions. [2023-12-23 02:47:12,096 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 504 [2023-12-23 02:47:12,096 INFO L187 NwaCegarLoop]: Found error trace [2023-12-23 02:47:12,097 INFO L195 NwaCegarLoop]: trace histogram [82, 82, 82, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 02:47:12,136 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 02:47:12,319 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 02:47:12,319 INFO L420 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-23 02:47:12,320 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-23 02:47:12,320 INFO L85 PathProgramCache]: Analyzing trace with hash -1924930820, now seen corresponding path program 1 times [2023-12-23 02:47:12,321 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-12-23 02:47:12,321 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1994853889] [2023-12-23 02:47:12,321 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-23 02:47:12,321 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 02:47:12,321 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2023-12-23 02:47:12,322 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 02:47:12,325 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 02:47:13,116 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-23 02:47:13,167 INFO L262 TraceCheckSpWp]: Trace formula consists of 811 conjuncts, 2 conjunts are in the unsatisfiable core [2023-12-23 02:47:13,174 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-23 02:47:13,214 INFO L134 CoverageAnalysis]: Checked inductivity of 13284 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 13284 trivial. 0 not checked. [2023-12-23 02:47:13,214 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-12-23 02:47:13,214 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-12-23 02:47:13,214 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1994853889] [2023-12-23 02:47:13,214 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1994853889] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-23 02:47:13,214 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-23 02:47:13,215 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2023-12-23 02:47:13,215 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [728699582] [2023-12-23 02:47:13,215 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-23 02:47:13,215 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-12-23 02:47:13,216 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-12-23 02:47:13,216 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-12-23 02:47:13,216 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-12-23 02:47:13,217 INFO L87 Difference]: Start difference. First operand 304 states and 512 transitions. Second operand has 3 states, 3 states have (on average 32.0) internal successors, (96), 3 states have internal predecessors, (96), 1 states have call successors, (82), 1 states have call predecessors, (82), 1 states have return successors, (82), 1 states have call predecessors, (82), 1 states have call successors, (82) [2023-12-23 02:47:13,315 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-23 02:47:13,315 INFO L93 Difference]: Finished difference Result 614 states and 1028 transitions. [2023-12-23 02:47:13,316 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-12-23 02:47:13,316 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 32.0) internal successors, (96), 3 states have internal predecessors, (96), 1 states have call successors, (82), 1 states have call predecessors, (82), 1 states have return successors, (82), 1 states have call predecessors, (82), 1 states have call successors, (82) Word has length 503 [2023-12-23 02:47:13,317 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-23 02:47:13,319 INFO L225 Difference]: With dead ends: 614 [2023-12-23 02:47:13,319 INFO L226 Difference]: Without dead ends: 311 [2023-12-23 02:47:13,320 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 502 GetRequests, 501 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-12-23 02:47:13,321 INFO L413 NwaCegarLoop]: 333 mSDtfsCounter, 175 mSDsluCounter, 309 mSDsCounter, 0 mSdLazyCounter, 25 mSolverCounterSat, 7 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 175 SdHoareTripleChecker+Valid, 642 SdHoareTripleChecker+Invalid, 32 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 7 IncrementalHoareTripleChecker+Valid, 25 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2023-12-23 02:47:13,321 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [175 Valid, 642 Invalid, 32 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [7 Valid, 25 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2023-12-23 02:47:13,322 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 311 states. [2023-12-23 02:47:13,334 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 311 to 228. [2023-12-23 02:47:13,335 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 228 states, 143 states have (on average 1.4755244755244756) internal successors, (211), 143 states have internal predecessors, (211), 82 states have call successors, (82), 2 states have call predecessors, (82), 2 states have return successors, (82), 82 states have call predecessors, (82), 82 states have call successors, (82) [2023-12-23 02:47:13,336 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 228 states to 228 states and 375 transitions. [2023-12-23 02:47:13,336 INFO L78 Accepts]: Start accepts. Automaton has 228 states and 375 transitions. Word has length 503 [2023-12-23 02:47:13,337 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-23 02:47:13,337 INFO L495 AbstractCegarLoop]: Abstraction has 228 states and 375 transitions. [2023-12-23 02:47:13,337 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 32.0) internal successors, (96), 3 states have internal predecessors, (96), 1 states have call successors, (82), 1 states have call predecessors, (82), 1 states have return successors, (82), 1 states have call predecessors, (82), 1 states have call successors, (82) [2023-12-23 02:47:13,337 INFO L276 IsEmpty]: Start isEmpty. Operand 228 states and 375 transitions. [2023-12-23 02:47:13,340 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 505 [2023-12-23 02:47:13,340 INFO L187 NwaCegarLoop]: Found error trace [2023-12-23 02:47:13,340 INFO L195 NwaCegarLoop]: trace histogram [82, 82, 82, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 02:47:13,379 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 02:47:13,548 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 02:47:13,549 INFO L420 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-23 02:47:13,549 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-23 02:47:13,549 INFO L85 PathProgramCache]: Analyzing trace with hash -2067385265, now seen corresponding path program 1 times [2023-12-23 02:47:13,550 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-12-23 02:47:13,550 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [383592396] [2023-12-23 02:47:13,550 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-23 02:47:13,550 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 02:47:13,550 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2023-12-23 02:47:13,556 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 02:47:13,558 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 02:47:14,317 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-23 02:47:14,365 INFO L262 TraceCheckSpWp]: Trace formula consists of 812 conjuncts, 2 conjunts are in the unsatisfiable core [2023-12-23 02:47:14,371 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-23 02:47:14,455 INFO L134 CoverageAnalysis]: Checked inductivity of 13284 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 13284 trivial. 0 not checked. [2023-12-23 02:47:14,455 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-12-23 02:47:14,458 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-12-23 02:47:14,458 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [383592396] [2023-12-23 02:47:14,458 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [383592396] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-23 02:47:14,458 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-23 02:47:14,459 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2023-12-23 02:47:14,459 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [376230611] [2023-12-23 02:47:14,459 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-23 02:47:14,461 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-12-23 02:47:14,462 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-12-23 02:47:14,463 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-12-23 02:47:14,464 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-12-23 02:47:14,464 INFO L87 Difference]: Start difference. First operand 228 states and 375 transitions. Second operand has 3 states, 3 states have (on average 32.333333333333336) internal successors, (97), 3 states have internal predecessors, (97), 1 states have call successors, (82), 1 states have call predecessors, (82), 1 states have return successors, (82), 1 states have call predecessors, (82), 1 states have call successors, (82) [2023-12-23 02:47:14,805 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-23 02:47:14,805 INFO L93 Difference]: Finished difference Result 623 states and 1024 transitions. [2023-12-23 02:47:14,806 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-12-23 02:47:14,806 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 32.333333333333336) internal successors, (97), 3 states have internal predecessors, (97), 1 states have call successors, (82), 1 states have call predecessors, (82), 1 states have return successors, (82), 1 states have call predecessors, (82), 1 states have call successors, (82) Word has length 504 [2023-12-23 02:47:14,807 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-23 02:47:14,809 INFO L225 Difference]: With dead ends: 623 [2023-12-23 02:47:14,809 INFO L226 Difference]: Without dead ends: 396 [2023-12-23 02:47:14,810 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 503 GetRequests, 502 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-12-23 02:47:14,811 INFO L413 NwaCegarLoop]: 517 mSDtfsCounter, 240 mSDsluCounter, 317 mSDsCounter, 0 mSdLazyCounter, 25 mSolverCounterSat, 10 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 240 SdHoareTripleChecker+Valid, 834 SdHoareTripleChecker+Invalid, 35 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 10 IncrementalHoareTripleChecker+Valid, 25 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2023-12-23 02:47:14,811 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [240 Valid, 834 Invalid, 35 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [10 Valid, 25 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2023-12-23 02:47:14,812 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 396 states. [2023-12-23 02:47:14,829 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 396 to 393. [2023-12-23 02:47:14,830 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 393 states, 235 states have (on average 1.421276595744681) internal successors, (334), 236 states have internal predecessors, (334), 153 states have call successors, (153), 4 states have call predecessors, (153), 4 states have return successors, (153), 152 states have call predecessors, (153), 153 states have call successors, (153) [2023-12-23 02:47:14,832 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 393 states to 393 states and 640 transitions. [2023-12-23 02:47:14,832 INFO L78 Accepts]: Start accepts. Automaton has 393 states and 640 transitions. Word has length 504 [2023-12-23 02:47:14,833 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-23 02:47:14,833 INFO L495 AbstractCegarLoop]: Abstraction has 393 states and 640 transitions. [2023-12-23 02:47:14,833 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 32.333333333333336) internal successors, (97), 3 states have internal predecessors, (97), 1 states have call successors, (82), 1 states have call predecessors, (82), 1 states have return successors, (82), 1 states have call predecessors, (82), 1 states have call successors, (82) [2023-12-23 02:47:14,833 INFO L276 IsEmpty]: Start isEmpty. Operand 393 states and 640 transitions. [2023-12-23 02:47:14,837 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 505 [2023-12-23 02:47:14,837 INFO L187 NwaCegarLoop]: Found error trace [2023-12-23 02:47:14,837 INFO L195 NwaCegarLoop]: trace histogram [82, 82, 82, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 02:47:14,859 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 02:47:15,059 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 5 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2023-12-23 02:47:15,059 INFO L420 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-23 02:47:15,060 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-23 02:47:15,060 INFO L85 PathProgramCache]: Analyzing trace with hash -1210223413, now seen corresponding path program 1 times [2023-12-23 02:47:15,060 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-12-23 02:47:15,061 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1786836273] [2023-12-23 02:47:15,061 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-23 02:47:15,061 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 02:47:15,061 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2023-12-23 02:47:15,062 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 02:47:15,071 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 02:47:15,874 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-23 02:47:15,929 INFO L262 TraceCheckSpWp]: Trace formula consists of 811 conjuncts, 2 conjunts are in the unsatisfiable core [2023-12-23 02:47:15,937 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-23 02:47:15,964 INFO L134 CoverageAnalysis]: Checked inductivity of 13284 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 13284 trivial. 0 not checked. [2023-12-23 02:47:15,964 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-12-23 02:47:15,964 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-12-23 02:47:15,964 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1786836273] [2023-12-23 02:47:15,964 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1786836273] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-23 02:47:15,964 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-23 02:47:15,965 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2023-12-23 02:47:15,965 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [799415064] [2023-12-23 02:47:15,965 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-23 02:47:15,965 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-12-23 02:47:15,965 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-12-23 02:47:15,966 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-12-23 02:47:15,966 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-12-23 02:47:15,966 INFO L87 Difference]: Start difference. First operand 393 states and 640 transitions. Second operand has 3 states, 3 states have (on average 32.333333333333336) internal successors, (97), 3 states have internal predecessors, (97), 1 states have call successors, (82), 1 states have call predecessors, (82), 1 states have return successors, (82), 1 states have call predecessors, (82), 1 states have call successors, (82) [2023-12-23 02:47:16,336 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-23 02:47:16,336 INFO L93 Difference]: Finished difference Result 792 states and 1284 transitions. [2023-12-23 02:47:16,336 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-12-23 02:47:16,337 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 32.333333333333336) internal successors, (97), 3 states have internal predecessors, (97), 1 states have call successors, (82), 1 states have call predecessors, (82), 1 states have return successors, (82), 1 states have call predecessors, (82), 1 states have call successors, (82) Word has length 504 [2023-12-23 02:47:16,337 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-23 02:47:16,339 INFO L225 Difference]: With dead ends: 792 [2023-12-23 02:47:16,339 INFO L226 Difference]: Without dead ends: 400 [2023-12-23 02:47:16,340 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 503 GetRequests, 502 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-12-23 02:47:16,341 INFO L413 NwaCegarLoop]: 328 mSDtfsCounter, 251 mSDsluCounter, 317 mSDsCounter, 0 mSdLazyCounter, 22 mSolverCounterSat, 4 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 251 SdHoareTripleChecker+Valid, 645 SdHoareTripleChecker+Invalid, 26 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 4 IncrementalHoareTripleChecker+Valid, 22 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2023-12-23 02:47:16,341 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [251 Valid, 645 Invalid, 26 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [4 Valid, 22 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2023-12-23 02:47:16,341 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 400 states. [2023-12-23 02:47:16,350 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 400 to 262. [2023-12-23 02:47:16,351 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 262 states, 176 states have (on average 1.4715909090909092) internal successors, (259), 176 states have internal predecessors, (259), 82 states have call successors, (82), 3 states have call predecessors, (82), 3 states have return successors, (82), 82 states have call predecessors, (82), 82 states have call successors, (82) [2023-12-23 02:47:16,352 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 262 states to 262 states and 423 transitions. [2023-12-23 02:47:16,352 INFO L78 Accepts]: Start accepts. Automaton has 262 states and 423 transitions. Word has length 504 [2023-12-23 02:47:16,353 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-23 02:47:16,353 INFO L495 AbstractCegarLoop]: Abstraction has 262 states and 423 transitions. [2023-12-23 02:47:16,353 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 32.333333333333336) internal successors, (97), 3 states have internal predecessors, (97), 1 states have call successors, (82), 1 states have call predecessors, (82), 1 states have return successors, (82), 1 states have call predecessors, (82), 1 states have call successors, (82) [2023-12-23 02:47:16,353 INFO L276 IsEmpty]: Start isEmpty. Operand 262 states and 423 transitions. [2023-12-23 02:47:16,355 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 505 [2023-12-23 02:47:16,356 INFO L187 NwaCegarLoop]: Found error trace [2023-12-23 02:47:16,356 INFO L195 NwaCegarLoop]: trace histogram [82, 82, 82, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 02:47:16,396 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 02:47:16,574 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 02:47:16,574 INFO L420 AbstractCegarLoop]: === Iteration 6 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-23 02:47:16,575 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-23 02:47:16,575 INFO L85 PathProgramCache]: Analyzing trace with hash 729623945, now seen corresponding path program 1 times [2023-12-23 02:47:16,576 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-12-23 02:47:16,576 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1238624620] [2023-12-23 02:47:16,576 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-23 02:47:16,576 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 02:47:16,576 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2023-12-23 02:47:16,577 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 02:47:16,597 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 02:47:17,316 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-23 02:47:17,370 INFO L262 TraceCheckSpWp]: Trace formula consists of 810 conjuncts, 2 conjunts are in the unsatisfiable core [2023-12-23 02:47:17,377 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-23 02:47:17,418 INFO L134 CoverageAnalysis]: Checked inductivity of 13284 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 13284 trivial. 0 not checked. [2023-12-23 02:47:17,418 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-12-23 02:47:17,419 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-12-23 02:47:17,419 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1238624620] [2023-12-23 02:47:17,419 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1238624620] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-23 02:47:17,419 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-23 02:47:17,419 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2023-12-23 02:47:17,419 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1516737362] [2023-12-23 02:47:17,419 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-23 02:47:17,420 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-12-23 02:47:17,420 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-12-23 02:47:17,420 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-12-23 02:47:17,420 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-12-23 02:47:17,421 INFO L87 Difference]: Start difference. First operand 262 states and 423 transitions. Second operand has 3 states, 3 states have (on average 32.333333333333336) internal successors, (97), 3 states have internal predecessors, (97), 1 states have call successors, (82), 1 states have call predecessors, (82), 1 states have return successors, (82), 1 states have call predecessors, (82), 1 states have call successors, (82) [2023-12-23 02:47:17,620 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-23 02:47:17,620 INFO L93 Difference]: Finished difference Result 698 states and 1128 transitions. [2023-12-23 02:47:17,621 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-12-23 02:47:17,621 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 32.333333333333336) internal successors, (97), 3 states have internal predecessors, (97), 1 states have call successors, (82), 1 states have call predecessors, (82), 1 states have return successors, (82), 1 states have call predecessors, (82), 1 states have call successors, (82) Word has length 504 [2023-12-23 02:47:17,621 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-23 02:47:17,623 INFO L225 Difference]: With dead ends: 698 [2023-12-23 02:47:17,623 INFO L226 Difference]: Without dead ends: 437 [2023-12-23 02:47:17,624 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 503 GetRequests, 502 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-12-23 02:47:17,625 INFO L413 NwaCegarLoop]: 501 mSDtfsCounter, 231 mSDsluCounter, 317 mSDsCounter, 0 mSdLazyCounter, 24 mSolverCounterSat, 6 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 231 SdHoareTripleChecker+Valid, 818 SdHoareTripleChecker+Invalid, 30 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 6 IncrementalHoareTripleChecker+Valid, 24 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2023-12-23 02:47:17,625 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [231 Valid, 818 Invalid, 30 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [6 Valid, 24 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2023-12-23 02:47:17,626 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 437 states. [2023-12-23 02:47:17,659 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 437 to 434. [2023-12-23 02:47:17,660 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 434 states, 280 states have (on average 1.4392857142857143) internal successors, (403), 281 states have internal predecessors, (403), 148 states have call successors, (148), 5 states have call predecessors, (148), 5 states have return successors, (148), 147 states have call predecessors, (148), 148 states have call successors, (148) [2023-12-23 02:47:17,664 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 434 states to 434 states and 699 transitions. [2023-12-23 02:47:17,664 INFO L78 Accepts]: Start accepts. Automaton has 434 states and 699 transitions. Word has length 504 [2023-12-23 02:47:17,665 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-23 02:47:17,665 INFO L495 AbstractCegarLoop]: Abstraction has 434 states and 699 transitions. [2023-12-23 02:47:17,665 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 32.333333333333336) internal successors, (97), 3 states have internal predecessors, (97), 1 states have call successors, (82), 1 states have call predecessors, (82), 1 states have return successors, (82), 1 states have call predecessors, (82), 1 states have call successors, (82) [2023-12-23 02:47:17,665 INFO L276 IsEmpty]: Start isEmpty. Operand 434 states and 699 transitions. [2023-12-23 02:47:17,668 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 505 [2023-12-23 02:47:17,668 INFO L187 NwaCegarLoop]: Found error trace [2023-12-23 02:47:17,668 INFO L195 NwaCegarLoop]: trace histogram [82, 82, 82, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 02:47:17,710 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (7)] Forceful destruction successful, exit code 0 [2023-12-23 02:47:17,890 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 02:47:17,890 INFO L420 AbstractCegarLoop]: === Iteration 7 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-23 02:47:17,891 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-23 02:47:17,891 INFO L85 PathProgramCache]: Analyzing trace with hash 306922119, now seen corresponding path program 1 times [2023-12-23 02:47:17,892 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-12-23 02:47:17,892 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [397623618] [2023-12-23 02:47:17,892 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-23 02:47:17,892 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 02:47:17,892 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2023-12-23 02:47:17,894 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 02:47:17,898 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (8)] Waiting until timeout for monitored process [2023-12-23 02:47:19,266 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-23 02:47:19,322 INFO L262 TraceCheckSpWp]: Trace formula consists of 809 conjuncts, 7 conjunts are in the unsatisfiable core [2023-12-23 02:47:19,328 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-23 02:47:20,096 INFO L134 CoverageAnalysis]: Checked inductivity of 13284 backedges. 7904 proven. 156 refuted. 0 times theorem prover too weak. 5224 trivial. 0 not checked. [2023-12-23 02:47:20,097 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-12-23 02:47:35,847 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-12-23 02:47:35,847 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [397623618] [2023-12-23 02:47:35,848 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [397623618] provided 0 perfect and 1 imperfect interpolant sequences [2023-12-23 02:47:35,848 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleCvc4 [263603789] [2023-12-23 02:47:35,848 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-23 02:47:35,848 INFO L173 SolverBuilder]: Constructing external solver with command: cvc4 --incremental --print-success --lang smt [2023-12-23 02:47:35,848 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/cvc4 [2023-12-23 02:47:35,886 INFO L229 MonitoredProcess]: Starting monitored process 9 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/cvc4 --incremental --print-success --lang smt (exit command is (exit), workingDir is null) [2023-12-23 02:47:35,893 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/cvc4 --incremental --print-success --lang smt (9)] Waiting until timeout for monitored process [2023-12-23 02:47:46,176 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-23 02:47:46,262 INFO L262 TraceCheckSpWp]: Trace formula consists of 809 conjuncts, 5 conjunts are in the unsatisfiable core [2023-12-23 02:47:46,269 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-23 02:47:46,723 INFO L134 CoverageAnalysis]: Checked inductivity of 13284 backedges. 2563 proven. 24 refuted. 0 times theorem prover too weak. 10697 trivial. 0 not checked. [2023-12-23 02:47:46,723 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-12-23 02:48:14,320 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleCvc4 [263603789] provided 0 perfect and 1 imperfect interpolant sequences [2023-12-23 02:48:14,321 INFO L185 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2023-12-23 02:48:14,321 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [8, 5] total 9 [2023-12-23 02:48:14,321 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [581615149] [2023-12-23 02:48:14,321 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2023-12-23 02:48:14,322 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2023-12-23 02:48:14,322 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-12-23 02:48:14,322 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2023-12-23 02:48:14,322 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=30, Invalid=80, Unknown=0, NotChecked=0, Total=110 [2023-12-23 02:48:14,323 INFO L87 Difference]: Start difference. First operand 434 states and 699 transitions. Second operand has 9 states, 9 states have (on average 18.22222222222222) internal successors, (164), 9 states have internal predecessors, (164), 4 states have call successors, (127), 4 states have call predecessors, (127), 6 states have return successors, (128), 4 states have call predecessors, (128), 4 states have call successors, (128) [2023-12-23 02:48:20,292 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-23 02:48:20,292 INFO L93 Difference]: Finished difference Result 893 states and 1420 transitions. [2023-12-23 02:48:20,295 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2023-12-23 02:48:20,295 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 9 states have (on average 18.22222222222222) internal successors, (164), 9 states have internal predecessors, (164), 4 states have call successors, (127), 4 states have call predecessors, (127), 6 states have return successors, (128), 4 states have call predecessors, (128), 4 states have call successors, (128) Word has length 504 [2023-12-23 02:48:20,296 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-23 02:48:20,299 INFO L225 Difference]: With dead ends: 893 [2023-12-23 02:48:20,299 INFO L226 Difference]: Without dead ends: 460 [2023-12-23 02:48:20,300 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 1110 GetRequests, 1094 SyntacticMatches, 0 SemanticMatches, 16 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 45 ImplicationChecksByTransitivity, 11.0s TimeCoverageRelationStatistics Valid=95, Invalid=211, Unknown=0, NotChecked=0, Total=306 [2023-12-23 02:48:20,301 INFO L413 NwaCegarLoop]: 232 mSDtfsCounter, 359 mSDsluCounter, 596 mSDsCounter, 0 mSdLazyCounter, 822 mSolverCounterSat, 169 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 4.9s Time, 0 mProtectedPredicate, 0 mProtectedAction, 432 SdHoareTripleChecker+Valid, 828 SdHoareTripleChecker+Invalid, 991 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 169 IncrementalHoareTripleChecker+Valid, 822 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 5.3s IncrementalHoareTripleChecker+Time [2023-12-23 02:48:20,301 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [432 Valid, 828 Invalid, 991 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [169 Valid, 822 Invalid, 0 Unknown, 0 Unchecked, 5.3s Time] [2023-12-23 02:48:20,302 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 460 states. [2023-12-23 02:48:20,315 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 460 to 446. [2023-12-23 02:48:20,316 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 446 states, 289 states have (on average 1.411764705882353) internal successors, (408), 290 states have internal predecessors, (408), 148 states have call successors, (148), 8 states have call predecessors, (148), 8 states have return successors, (148), 147 states have call predecessors, (148), 148 states have call successors, (148) [2023-12-23 02:48:20,318 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 446 states to 446 states and 704 transitions. [2023-12-23 02:48:20,318 INFO L78 Accepts]: Start accepts. Automaton has 446 states and 704 transitions. Word has length 504 [2023-12-23 02:48:20,318 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-23 02:48:20,318 INFO L495 AbstractCegarLoop]: Abstraction has 446 states and 704 transitions. [2023-12-23 02:48:20,319 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 9 states have (on average 18.22222222222222) internal successors, (164), 9 states have internal predecessors, (164), 4 states have call successors, (127), 4 states have call predecessors, (127), 6 states have return successors, (128), 4 states have call predecessors, (128), 4 states have call successors, (128) [2023-12-23 02:48:20,319 INFO L276 IsEmpty]: Start isEmpty. Operand 446 states and 704 transitions. [2023-12-23 02:48:20,321 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 506 [2023-12-23 02:48:20,321 INFO L187 NwaCegarLoop]: Found error trace [2023-12-23 02:48:20,322 INFO L195 NwaCegarLoop]: trace histogram [82, 82, 82, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 02:48:20,336 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/cvc4 --incremental --print-success --lang smt (9)] Ended with exit code 0 [2023-12-23 02:48:20,554 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (8)] Forceful destruction successful, exit code 0 [2023-12-23 02:48:20,736 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 9 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/cvc4 --incremental --print-success --lang smt,8 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2023-12-23 02:48:20,737 INFO L420 AbstractCegarLoop]: === Iteration 8 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-23 02:48:20,737 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-23 02:48:20,737 INFO L85 PathProgramCache]: Analyzing trace with hash 453900935, now seen corresponding path program 1 times [2023-12-23 02:48:20,738 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-12-23 02:48:20,738 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1797083626] [2023-12-23 02:48:20,738 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-23 02:48:20,738 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2023-12-23 02:48:20,740 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2023-12-23 02:48:20,743 INFO L229 MonitoredProcess]: Starting monitored process 10 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2023-12-23 02:48:20,760 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (10)] Waiting until timeout for monitored process [2023-12-23 02:48:22,375 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-23 02:48:22,428 INFO L262 TraceCheckSpWp]: Trace formula consists of 811 conjuncts, 30 conjunts are in the unsatisfiable core [2023-12-23 02:48:22,438 INFO L285 TraceCheckSpWp]: Computing forward predicates... Received shutdown request... [2023-12-23 03:01:34,470 WARN L340 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (10)] Timeout while monitored process is still running, waiting 1000 ms for graceful end [2023-12-23 03:01:34,483 INFO L805 garLoopResultBuilder]: Registering result TIMEOUT for location ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION (0 of 1 remaining) [2023-12-23 03:01:34,489 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 03:01:34,505 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 (10)] Ended with exit code 0 [2023-12-23 03:01:34,704 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 10 /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 03:01:34,707 WARN L619 AbstractCegarLoop]: Verification canceled: while NwaCegarLoop was analyzing trace of length 506 with TraceHistMax 82,while TraceCheckSpWp was constructing forward predicates,while PolyPacSimplificationTermWalker was simplifying a ∧-17-2-3-2-2-2-2-2-2-2-2-2-2-2-2-2-2-2-2-2-2-2-2-2-2-2-2-2-2-2-2-2-2-2-2-2-2-2-2-2-2-2-2-2-2-2-3-2-2-2-2-2-2-2-2-2-2-2-2-2-2-2-3-2-1 term,while PolyPacSimplificationTermWalker was simplifying 2 xjuncts wrt. a ∧-65-2-3-3-2-3-2-3-2-3-2-3-2-3-2-3-2-3-2-3-2-4-2-4-2-4-2-3-2-2-2-3-2-3-2-3-2-3-2-3-2-3-2-3-2-3-2-3-2-3-2-3-2-3-2-3-2-3-2-3-2-3-2-1 context. [2023-12-23 03:01:34,710 INFO L445 BasicCegarLoop]: Path program histogram: [1, 1, 1, 1, 1, 1, 1, 1] [2023-12-23 03:01:34,712 INFO L179 ceAbstractionStarter]: Computing trace abstraction results [2023-12-23 03:01:34,714 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 23.12 03:01:34 BoogieIcfgContainer [2023-12-23 03:01:34,724 INFO L131 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2023-12-23 03:01:34,725 INFO L158 Benchmark]: Toolchain (without parser) took 872968.14ms. Allocated memory was 274.7MB in the beginning and 4.0GB in the end (delta: 3.8GB). Free memory was 226.5MB in the beginning and 1.5GB in the end (delta: -1.2GB). Peak memory consumption was 2.7GB. Max. memory is 8.0GB. [2023-12-23 03:01:34,725 INFO L158 Benchmark]: CDTParser took 0.13ms. Allocated memory is still 187.7MB. Free memory is still 141.0MB. There was no memory consumed. Max. memory is 8.0GB. [2023-12-23 03:01:34,725 INFO L158 Benchmark]: CACSL2BoogieTranslator took 392.37ms. Allocated memory is still 274.7MB. Free memory was 226.5MB in the beginning and 202.4MB in the end (delta: 24.1MB). Peak memory consumption was 24.1MB. Max. memory is 8.0GB. [2023-12-23 03:01:34,725 INFO L158 Benchmark]: Boogie Procedure Inliner took 60.26ms. Allocated memory is still 274.7MB. Free memory was 202.4MB in the beginning and 198.2MB in the end (delta: 4.2MB). Peak memory consumption was 4.2MB. Max. memory is 8.0GB. [2023-12-23 03:01:34,725 INFO L158 Benchmark]: Boogie Preprocessor took 66.99ms. Allocated memory is still 274.7MB. Free memory was 198.2MB in the beginning and 191.9MB in the end (delta: 6.2MB). Peak memory consumption was 6.3MB. Max. memory is 8.0GB. [2023-12-23 03:01:34,726 INFO L158 Benchmark]: RCFGBuilder took 7074.89ms. Allocated memory is still 274.7MB. Free memory was 191.9MB in the beginning and 203.2MB in the end (delta: -11.3MB). Peak memory consumption was 16.4MB. Max. memory is 8.0GB. [2023-12-23 03:01:34,726 INFO L158 Benchmark]: TraceAbstraction took 865367.16ms. Allocated memory was 274.7MB in the beginning and 4.0GB in the end (delta: 3.8GB). Free memory was 202.7MB in the beginning and 1.5GB in the end (delta: -1.2GB). Peak memory consumption was 2.7GB. Max. memory is 8.0GB. [2023-12-23 03:01:34,727 INFO L338 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.13ms. Allocated memory is still 187.7MB. Free memory is still 141.0MB. There was no memory consumed. Max. memory is 8.0GB. * CACSL2BoogieTranslator took 392.37ms. Allocated memory is still 274.7MB. Free memory was 226.5MB in the beginning and 202.4MB in the end (delta: 24.1MB). Peak memory consumption was 24.1MB. Max. memory is 8.0GB. * Boogie Procedure Inliner took 60.26ms. Allocated memory is still 274.7MB. Free memory was 202.4MB in the beginning and 198.2MB in the end (delta: 4.2MB). Peak memory consumption was 4.2MB. Max. memory is 8.0GB. * Boogie Preprocessor took 66.99ms. Allocated memory is still 274.7MB. Free memory was 198.2MB in the beginning and 191.9MB in the end (delta: 6.2MB). Peak memory consumption was 6.3MB. Max. memory is 8.0GB. * RCFGBuilder took 7074.89ms. Allocated memory is still 274.7MB. Free memory was 191.9MB in the beginning and 203.2MB in the end (delta: -11.3MB). Peak memory consumption was 16.4MB. Max. memory is 8.0GB. * TraceAbstraction took 865367.16ms. Allocated memory was 274.7MB in the beginning and 4.0GB in the end (delta: 3.8GB). Free memory was 202.7MB in the beginning and 1.5GB in the end (delta: -1.2GB). Peak memory consumption was 2.7GB. 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 506 with TraceHistMax 82,while TraceCheckSpWp was constructing forward predicates,while PolyPacSimplificationTermWalker was simplifying a ∧-17-2-3-2-2-2-2-2-2-2-2-2-2-2-2-2-2-2-2-2-2-2-2-2-2-2-2-2-2-2-2-2-2-2-2-2-2-2-2-2-2-2-2-2-2-2-3-2-2-2-2-2-2-2-2-2-2-2-2-2-2-2-3-2-1 term,while PolyPacSimplificationTermWalker was simplifying 2 xjuncts wrt. a ∧-65-2-3-3-2-3-2-3-2-3-2-3-2-3-2-3-2-3-2-3-2-4-2-4-2-4-2-3-2-2-2-3-2-3-2-3-2-3-2-3-2-3-2-3-2-3-2-3-2-3-2-3-2-3-2-3-2-3-2-3-2-3-2-1 context. - StatisticsResult: Ultimate Automizer benchmark data CFG has 2 procedures, 202 locations, 1 error locations. Started 1 CEGAR loops. OverallTime: 865.3s, OverallIterations: 8, TraceHistogramMax: 82, PathProgramHistogramMax: 1, EmptinessCheckTime: 0.1s, AutomataDifference: 7.3s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 1509 SdHoareTripleChecker+Valid, 6.3s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 1436 mSDsluCounter, 4826 SdHoareTripleChecker+Invalid, 5.8s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 2163 mSDsCounter, 207 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 949 IncrementalHoareTripleChecker+Invalid, 1156 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 207 mSolverCounterUnsat, 2663 mSDtfsCounter, 949 mSolverCounterSat, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown, PredicateUnifierStatistics: 0 DeclaredPredicates, 4125 GetRequests, 4104 SyntacticMatches, 0 SemanticMatches, 21 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 45 ImplicationChecksByTransitivity, 11.0s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=446occurred in iteration=7, InterpolantAutomatonStates: 30, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: 0.2s AutomataMinimizationTime, 7 MinimizatonAttempts, 244 StatesRemovedByMinimization, 6 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.4s SsaConstructionTime, 15.6s SatisfiabilityAnalysisTime, 45.4s InterpolantComputationTime, 4029 NumberOfCodeBlocks, 4029 NumberOfCodeBlocksAsserted, 8 NumberOfCheckSat, 4021 ConstructedInterpolants, 0 QuantifiedInterpolants, 5406 SizeOfPredicates, 14 NumberOfNonLiveVariables, 6484 ConjunctsInSsa, 23 ConjunctsInUnsatCore, 8 InterpolantComputations, 6 PerfectInterpolantSequences, 106092/106272 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