/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_Default.epf --cacsl2boogietranslator.use.bitabs.translation true -tc ../../../trunk/examples/toolchains/AutomizerCInline.xml -i ../../../trunk/examples/svcomp/hardness-nfm22/hardness_operatoramount_amount250_file-86.i -------------------------------------------------------------------------------- This is Ultimate 0.2.4-tmp.fs.bitabs-eval-d9c3e40-m [2023-12-19 13:10:21,285 INFO L188 SettingsManager]: Resetting all preferences to default values... [2023-12-19 13:10:21,356 INFO L114 SettingsManager]: Loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/settings/default/automizer/svcomp-Reach-32bit-Automizer_Default.epf [2023-12-19 13:10:21,359 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2023-12-19 13:10:21,360 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2023-12-19 13:10:21,382 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2023-12-19 13:10:21,382 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2023-12-19 13:10:21,382 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2023-12-19 13:10:21,383 INFO L151 SettingsManager]: Preferences of Boogie Preprocessor differ from their defaults: [2023-12-19 13:10:21,386 INFO L153 SettingsManager]: * Use memory slicer=true [2023-12-19 13:10:21,386 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2023-12-19 13:10:21,386 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2023-12-19 13:10:21,387 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2023-12-19 13:10:21,388 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2023-12-19 13:10:21,388 INFO L153 SettingsManager]: * Use SBE=true [2023-12-19 13:10:21,388 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2023-12-19 13:10:21,388 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2023-12-19 13:10:21,388 INFO L153 SettingsManager]: * sizeof long=4 [2023-12-19 13:10:21,388 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2023-12-19 13:10:21,389 INFO L153 SettingsManager]: * sizeof POINTER=4 [2023-12-19 13:10:21,389 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2023-12-19 13:10:21,389 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2023-12-19 13:10:21,389 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2023-12-19 13:10:21,389 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2023-12-19 13:10:21,390 INFO L153 SettingsManager]: * Allow undefined functions=false [2023-12-19 13:10:21,390 INFO L153 SettingsManager]: * sizeof long double=12 [2023-12-19 13:10:21,390 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2023-12-19 13:10:21,390 INFO L153 SettingsManager]: * Use constant arrays=true [2023-12-19 13:10:21,391 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2023-12-19 13:10:21,391 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2023-12-19 13:10:21,391 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2023-12-19 13:10:21,392 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2023-12-19 13:10:21,392 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2023-12-19 13:10:21,392 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2023-12-19 13:10:21,392 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2023-12-19 13:10:21,392 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2023-12-19 13:10:21,392 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2023-12-19 13:10:21,392 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2023-12-19 13:10:21,392 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2023-12-19 13:10:21,392 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2023-12-19 13:10:21,393 INFO L153 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2023-12-19 13:10:21,393 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2023-12-19 13:10:21,393 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2023-12-19 13:10:21,393 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Use bitabs translation -> true [2023-12-19 13:10:21,567 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2023-12-19 13:10:21,593 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2023-12-19 13:10:21,595 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2023-12-19 13:10:21,596 INFO L270 PluginConnector]: Initializing CDTParser... [2023-12-19 13:10:21,597 INFO L274 PluginConnector]: CDTParser initialized [2023-12-19 13:10:21,598 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/hardness-nfm22/hardness_operatoramount_amount250_file-86.i [2023-12-19 13:10:22,672 INFO L533 CDTParser]: Created temporary CDT project at NULL [2023-12-19 13:10:22,856 INFO L384 CDTParser]: Found 1 translation units. [2023-12-19 13:10:22,856 INFO L180 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/hardness-nfm22/hardness_operatoramount_amount250_file-86.i [2023-12-19 13:10:22,864 INFO L427 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/2eacb714b/1296a071a1214572878dbd55f7ab02bb/FLAGcf8eb72c1 [2023-12-19 13:10:22,873 INFO L435 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/2eacb714b/1296a071a1214572878dbd55f7ab02bb [2023-12-19 13:10:22,875 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2023-12-19 13:10:22,875 INFO L133 ToolchainWalker]: Walking toolchain with 5 elements. [2023-12-19 13:10:22,876 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2023-12-19 13:10:22,877 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2023-12-19 13:10:22,884 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2023-12-19 13:10:22,884 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 19.12 01:10:22" (1/1) ... [2023-12-19 13:10:22,885 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@258f65dc and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.12 01:10:22, skipping insertion in model container [2023-12-19 13:10:22,885 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 19.12 01:10:22" (1/1) ... [2023-12-19 13:10:22,933 INFO L177 MainTranslator]: Built tables and reachable declarations [2023-12-19 13:10:23,025 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_operatoramount_amount250_file-86.i[916,929] [2023-12-19 13:10:23,121 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-12-19 13:10:23,130 INFO L202 MainTranslator]: Completed pre-run [2023-12-19 13:10:23,138 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_operatoramount_amount250_file-86.i[916,929] [2023-12-19 13:10:23,205 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-12-19 13:10:23,223 INFO L206 MainTranslator]: Completed translation [2023-12-19 13:10:23,223 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.12 01:10:23 WrapperNode [2023-12-19 13:10:23,223 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2023-12-19 13:10:23,224 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2023-12-19 13:10:23,224 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2023-12-19 13:10:23,224 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2023-12-19 13:10:23,229 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.12 01:10:23" (1/1) ... [2023-12-19 13:10:23,243 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.12 01:10:23" (1/1) ... [2023-12-19 13:10:23,332 INFO L138 Inliner]: procedures = 26, calls = 81, calls flagged for inlining = 8, calls inlined = 8, statements flattened = 448 [2023-12-19 13:10:23,333 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2023-12-19 13:10:23,333 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2023-12-19 13:10:23,334 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2023-12-19 13:10:23,334 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2023-12-19 13:10:23,353 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.12 01:10:23" (1/1) ... [2023-12-19 13:10:23,353 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.12 01:10:23" (1/1) ... [2023-12-19 13:10:23,377 INFO L184 PluginConnector]: Executing the observer MemorySlicer from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.12 01:10:23" (1/1) ... [2023-12-19 13:10:23,408 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]. [2023-12-19 13:10:23,409 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.12 01:10:23" (1/1) ... [2023-12-19 13:10:23,409 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.12 01:10:23" (1/1) ... [2023-12-19 13:10:23,445 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.12 01:10:23" (1/1) ... [2023-12-19 13:10:23,448 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.12 01:10:23" (1/1) ... [2023-12-19 13:10:23,454 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.12 01:10:23" (1/1) ... [2023-12-19 13:10:23,458 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.12 01:10:23" (1/1) ... [2023-12-19 13:10:23,466 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2023-12-19 13:10:23,467 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2023-12-19 13:10:23,467 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2023-12-19 13:10:23,467 INFO L274 PluginConnector]: RCFGBuilder initialized [2023-12-19 13:10:23,467 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.12 01:10:23" (1/1) ... [2023-12-19 13:10:23,471 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2023-12-19 13:10:23,480 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-12-19 13:10:23,513 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) [2023-12-19 13:10:23,548 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 [2023-12-19 13:10:23,556 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2023-12-19 13:10:23,556 INFO L130 BoogieDeclarations]: Found specification of procedure assume_abort_if_not [2023-12-19 13:10:23,556 INFO L138 BoogieDeclarations]: Found implementation of procedure assume_abort_if_not [2023-12-19 13:10:23,556 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#0 [2023-12-19 13:10:23,556 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2023-12-19 13:10:23,556 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2023-12-19 13:10:23,632 INFO L241 CfgBuilder]: Building ICFG [2023-12-19 13:10:23,634 INFO L267 CfgBuilder]: Building CFG for each procedure with an implementation [2023-12-19 13:10:24,127 INFO L282 CfgBuilder]: Performing block encoding [2023-12-19 13:10:24,211 INFO L304 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2023-12-19 13:10:24,211 INFO L309 CfgBuilder]: Removed 1 assume(true) statements. [2023-12-19 13:10:24,212 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 19.12 01:10:24 BoogieIcfgContainer [2023-12-19 13:10:24,212 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2023-12-19 13:10:24,213 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2023-12-19 13:10:24,213 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2023-12-19 13:10:24,215 INFO L274 PluginConnector]: TraceAbstraction initialized [2023-12-19 13:10:24,215 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 19.12 01:10:22" (1/3) ... [2023-12-19 13:10:24,216 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@7b101d06 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 19.12 01:10:24, skipping insertion in model container [2023-12-19 13:10:24,216 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.12 01:10:23" (2/3) ... [2023-12-19 13:10:24,217 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@7b101d06 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 19.12 01:10:24, skipping insertion in model container [2023-12-19 13:10:24,217 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 19.12 01:10:24" (3/3) ... [2023-12-19 13:10:24,218 INFO L112 eAbstractionObserver]: Analyzing ICFG hardness_operatoramount_amount250_file-86.i [2023-12-19 13:10:24,232 INFO L204 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2023-12-19 13:10:24,232 INFO L163 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2023-12-19 13:10:24,279 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2023-12-19 13:10:24,283 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;@9fc8fb2, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2023-12-19 13:10:24,283 INFO L358 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2023-12-19 13:10:24,287 INFO L276 IsEmpty]: Start isEmpty. Operand has 186 states, 115 states have (on average 1.4608695652173913) internal successors, (168), 116 states have internal predecessors, (168), 68 states have call successors, (68), 1 states have call predecessors, (68), 1 states have return successors, (68), 68 states have call predecessors, (68), 68 states have call successors, (68) [2023-12-19 13:10:24,305 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 427 [2023-12-19 13:10:24,305 INFO L187 NwaCegarLoop]: Found error trace [2023-12-19 13:10:24,305 INFO L195 NwaCegarLoop]: trace histogram [68, 68, 68, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-19 13:10:24,306 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-19 13:10:24,309 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-19 13:10:24,310 INFO L85 PathProgramCache]: Analyzing trace with hash 1403346576, now seen corresponding path program 1 times [2023-12-19 13:10:24,315 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-12-19 13:10:24,315 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [370353576] [2023-12-19 13:10:24,316 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-19 13:10:24,316 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-19 13:10:24,438 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 13:10:24,563 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-12-19 13:10:24,563 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [370353576] [2023-12-19 13:10:24,563 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: Unsupported non-linear arithmetic [2023-12-19 13:10:24,564 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1813005695] [2023-12-19 13:10:24,564 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-19 13:10:24,570 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-12-19 13:10:24,570 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-12-19 13:10:24,578 INFO L229 MonitoredProcess]: Starting monitored process 2 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-12-19 13:10:24,600 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Waiting until timeout for monitored process [2023-12-19 13:10:24,829 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 13:10:24,850 INFO L262 TraceCheckSpWp]: Trace formula consists of 946 conjuncts, 1 conjunts are in the unsatisfiable core [2023-12-19 13:10:24,860 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-19 13:10:24,961 INFO L134 CoverageAnalysis]: Checked inductivity of 9112 backedges. 134 proven. 0 refuted. 0 times theorem prover too weak. 8978 trivial. 0 not checked. [2023-12-19 13:10:24,961 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-12-19 13:10:24,962 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1813005695] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-19 13:10:24,962 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-19 13:10:24,962 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2023-12-19 13:10:24,964 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1131699781] [2023-12-19 13:10:24,967 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-19 13:10:24,973 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2023-12-19 13:10:24,973 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-12-19 13:10:25,005 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2023-12-19 13:10:25,006 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2023-12-19 13:10:25,008 INFO L87 Difference]: Start difference. First operand has 186 states, 115 states have (on average 1.4608695652173913) internal successors, (168), 116 states have internal predecessors, (168), 68 states have call successors, (68), 1 states have call predecessors, (68), 1 states have return successors, (68), 68 states have call predecessors, (68), 68 states have call successors, (68) Second operand has 2 states, 2 states have (on average 45.5) internal successors, (91), 2 states have internal predecessors, (91), 2 states have call successors, (68), 2 states have call predecessors, (68), 1 states have return successors, (68), 1 states have call predecessors, (68), 2 states have call successors, (68) [2023-12-19 13:10:25,063 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-19 13:10:25,063 INFO L93 Difference]: Finished difference Result 369 states and 674 transitions. [2023-12-19 13:10:25,065 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2023-12-19 13:10:25,066 INFO L78 Accepts]: Start accepts. Automaton has has 2 states, 2 states have (on average 45.5) internal successors, (91), 2 states have internal predecessors, (91), 2 states have call successors, (68), 2 states have call predecessors, (68), 1 states have return successors, (68), 1 states have call predecessors, (68), 2 states have call successors, (68) Word has length 426 [2023-12-19 13:10:25,066 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-19 13:10:25,072 INFO L225 Difference]: With dead ends: 369 [2023-12-19 13:10:25,072 INFO L226 Difference]: Without dead ends: 184 [2023-12-19 13:10:25,076 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 425 GetRequests, 425 SyntacticMatches, 0 SemanticMatches, 0 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2023-12-19 13:10:25,081 INFO L413 NwaCegarLoop]: 296 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, 296 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 [2023-12-19 13:10:25,082 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 296 Invalid, 3 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 3 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2023-12-19 13:10:25,093 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 184 states. [2023-12-19 13:10:25,129 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 184 to 184. [2023-12-19 13:10:25,132 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 184 states, 114 states have (on average 1.4298245614035088) internal successors, (163), 114 states have internal predecessors, (163), 68 states have call successors, (68), 1 states have call predecessors, (68), 1 states have return successors, (68), 68 states have call predecessors, (68), 68 states have call successors, (68) [2023-12-19 13:10:25,156 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 184 states to 184 states and 299 transitions. [2023-12-19 13:10:25,157 INFO L78 Accepts]: Start accepts. Automaton has 184 states and 299 transitions. Word has length 426 [2023-12-19 13:10:25,157 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-19 13:10:25,157 INFO L495 AbstractCegarLoop]: Abstraction has 184 states and 299 transitions. [2023-12-19 13:10:25,158 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 2 states, 2 states have (on average 45.5) internal successors, (91), 2 states have internal predecessors, (91), 2 states have call successors, (68), 2 states have call predecessors, (68), 1 states have return successors, (68), 1 states have call predecessors, (68), 2 states have call successors, (68) [2023-12-19 13:10:25,158 INFO L276 IsEmpty]: Start isEmpty. Operand 184 states and 299 transitions. [2023-12-19 13:10:25,164 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 427 [2023-12-19 13:10:25,164 INFO L187 NwaCegarLoop]: Found error trace [2023-12-19 13:10:25,164 INFO L195 NwaCegarLoop]: trace histogram [68, 68, 68, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-19 13:10:25,170 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Ended with exit code 0 [2023-12-19 13:10:25,365 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable0 [2023-12-19 13:10:25,365 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-19 13:10:25,366 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-19 13:10:25,367 INFO L85 PathProgramCache]: Analyzing trace with hash 63721992, now seen corresponding path program 1 times [2023-12-19 13:10:25,367 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-12-19 13:10:25,367 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1692427877] [2023-12-19 13:10:25,367 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-19 13:10:25,367 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-19 13:10:25,462 ERROR L246 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2023-12-19 13:10:25,462 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1046664463] [2023-12-19 13:10:25,463 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-19 13:10:25,463 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-12-19 13:10:25,463 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-12-19 13:10:25,469 INFO L229 MonitoredProcess]: Starting monitored process 3 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-12-19 13:10:25,500 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Waiting until timeout for monitored process [2023-12-19 13:10:25,684 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 13:10:25,688 INFO L262 TraceCheckSpWp]: Trace formula consists of 946 conjuncts, 2 conjunts are in the unsatisfiable core [2023-12-19 13:10:25,704 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-19 13:10:25,783 INFO L134 CoverageAnalysis]: Checked inductivity of 9112 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 9112 trivial. 0 not checked. [2023-12-19 13:10:25,783 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-12-19 13:10:25,783 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-12-19 13:10:25,783 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1692427877] [2023-12-19 13:10:25,783 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2023-12-19 13:10:25,784 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1046664463] [2023-12-19 13:10:25,784 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1046664463] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-19 13:10:25,784 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-19 13:10:25,784 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2023-12-19 13:10:25,784 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1088495558] [2023-12-19 13:10:25,784 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-19 13:10:25,787 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-12-19 13:10:25,787 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-12-19 13:10:25,788 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-12-19 13:10:25,789 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-12-19 13:10:25,789 INFO L87 Difference]: Start difference. First operand 184 states and 299 transitions. Second operand has 3 states, 3 states have (on average 29.666666666666668) internal successors, (89), 3 states have internal predecessors, (89), 1 states have call successors, (68), 1 states have call predecessors, (68), 1 states have return successors, (68), 1 states have call predecessors, (68), 1 states have call successors, (68) [2023-12-19 13:10:25,880 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-19 13:10:25,881 INFO L93 Difference]: Finished difference Result 521 states and 844 transitions. [2023-12-19 13:10:25,881 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-12-19 13:10:25,881 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 29.666666666666668) internal successors, (89), 3 states have internal predecessors, (89), 1 states have call successors, (68), 1 states have call predecessors, (68), 1 states have return successors, (68), 1 states have call predecessors, (68), 1 states have call successors, (68) Word has length 426 [2023-12-19 13:10:25,883 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-19 13:10:25,887 INFO L225 Difference]: With dead ends: 521 [2023-12-19 13:10:25,887 INFO L226 Difference]: Without dead ends: 338 [2023-12-19 13:10:25,888 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 425 GetRequests, 424 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-12-19 13:10:25,889 INFO L413 NwaCegarLoop]: 493 mSDtfsCounter, 234 mSDsluCounter, 281 mSDsCounter, 0 mSdLazyCounter, 24 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 234 SdHoareTripleChecker+Valid, 774 SdHoareTripleChecker+Invalid, 25 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 24 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2023-12-19 13:10:25,889 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [234 Valid, 774 Invalid, 25 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 24 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2023-12-19 13:10:25,890 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 338 states. [2023-12-19 13:10:25,910 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 338 to 208. [2023-12-19 13:10:25,911 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 208 states, 138 states have (on average 1.4855072463768115) internal successors, (205), 138 states have internal predecessors, (205), 68 states have call successors, (68), 1 states have call predecessors, (68), 1 states have return successors, (68), 68 states have call predecessors, (68), 68 states have call successors, (68) [2023-12-19 13:10:25,912 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 208 states to 208 states and 341 transitions. [2023-12-19 13:10:25,912 INFO L78 Accepts]: Start accepts. Automaton has 208 states and 341 transitions. Word has length 426 [2023-12-19 13:10:25,913 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-19 13:10:25,914 INFO L495 AbstractCegarLoop]: Abstraction has 208 states and 341 transitions. [2023-12-19 13:10:25,914 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 29.666666666666668) internal successors, (89), 3 states have internal predecessors, (89), 1 states have call successors, (68), 1 states have call predecessors, (68), 1 states have return successors, (68), 1 states have call predecessors, (68), 1 states have call successors, (68) [2023-12-19 13:10:25,914 INFO L276 IsEmpty]: Start isEmpty. Operand 208 states and 341 transitions. [2023-12-19 13:10:25,918 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 427 [2023-12-19 13:10:25,918 INFO L187 NwaCegarLoop]: Found error trace [2023-12-19 13:10:25,918 INFO L195 NwaCegarLoop]: trace histogram [68, 68, 68, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-19 13:10:25,927 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Forceful destruction successful, exit code 0 [2023-12-19 13:10:26,124 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 3 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable1 [2023-12-19 13:10:26,125 INFO L420 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-19 13:10:26,126 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-19 13:10:26,126 INFO L85 PathProgramCache]: Analyzing trace with hash 895849224, now seen corresponding path program 1 times [2023-12-19 13:10:26,127 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-12-19 13:10:26,127 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [353106336] [2023-12-19 13:10:26,127 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-19 13:10:26,127 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-19 13:10:26,186 ERROR L246 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2023-12-19 13:10:26,186 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [743833640] [2023-12-19 13:10:26,186 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-19 13:10:26,186 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-12-19 13:10:26,187 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-12-19 13:10:26,187 INFO L229 MonitoredProcess]: Starting monitored process 4 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-12-19 13:10:26,196 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Waiting until timeout for monitored process [2023-12-19 13:10:26,435 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 13:10:26,439 INFO L262 TraceCheckSpWp]: Trace formula consists of 947 conjuncts, 7 conjunts are in the unsatisfiable core [2023-12-19 13:10:26,451 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-19 13:10:27,146 INFO L134 CoverageAnalysis]: Checked inductivity of 9112 backedges. 4751 proven. 114 refuted. 0 times theorem prover too weak. 4247 trivial. 0 not checked. [2023-12-19 13:10:27,146 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-12-19 13:10:27,459 INFO L134 CoverageAnalysis]: Checked inductivity of 9112 backedges. 87 proven. 114 refuted. 0 times theorem prover too weak. 8911 trivial. 0 not checked. [2023-12-19 13:10:27,459 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-12-19 13:10:27,459 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [353106336] [2023-12-19 13:10:27,459 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2023-12-19 13:10:27,459 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [743833640] [2023-12-19 13:10:27,459 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [743833640] provided 0 perfect and 2 imperfect interpolant sequences [2023-12-19 13:10:27,460 INFO L185 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2023-12-19 13:10:27,460 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [6, 6] total 10 [2023-12-19 13:10:27,460 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [37165912] [2023-12-19 13:10:27,460 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2023-12-19 13:10:27,461 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2023-12-19 13:10:27,461 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-12-19 13:10:27,462 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2023-12-19 13:10:27,462 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=33, Invalid=57, Unknown=0, NotChecked=0, Total=90 [2023-12-19 13:10:27,462 INFO L87 Difference]: Start difference. First operand 208 states and 341 transitions. Second operand has 10 states, 10 states have (on average 16.7) internal successors, (167), 10 states have internal predecessors, (167), 5 states have call successors, (134), 3 states have call predecessors, (134), 5 states have return successors, (134), 5 states have call predecessors, (134), 5 states have call successors, (134) [2023-12-19 13:10:27,811 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-19 13:10:27,811 INFO L93 Difference]: Finished difference Result 421 states and 686 transitions. [2023-12-19 13:10:27,811 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2023-12-19 13:10:27,812 INFO L78 Accepts]: Start accepts. Automaton has has 10 states, 10 states have (on average 16.7) internal successors, (167), 10 states have internal predecessors, (167), 5 states have call successors, (134), 3 states have call predecessors, (134), 5 states have return successors, (134), 5 states have call predecessors, (134), 5 states have call successors, (134) Word has length 426 [2023-12-19 13:10:27,812 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-19 13:10:27,813 INFO L225 Difference]: With dead ends: 421 [2023-12-19 13:10:27,814 INFO L226 Difference]: Without dead ends: 214 [2023-12-19 13:10:27,814 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 854 GetRequests, 842 SyntacticMatches, 0 SemanticMatches, 12 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 22 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=72, Invalid=110, Unknown=0, NotChecked=0, Total=182 [2023-12-19 13:10:27,815 INFO L413 NwaCegarLoop]: 204 mSDtfsCounter, 337 mSDsluCounter, 267 mSDsCounter, 0 mSdLazyCounter, 419 mSolverCounterSat, 72 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 366 SdHoareTripleChecker+Valid, 471 SdHoareTripleChecker+Invalid, 491 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 72 IncrementalHoareTripleChecker+Valid, 419 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2023-12-19 13:10:27,815 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [366 Valid, 471 Invalid, 491 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [72 Valid, 419 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2023-12-19 13:10:27,816 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 214 states. [2023-12-19 13:10:27,829 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 214 to 212. [2023-12-19 13:10:27,830 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 212 states, 141 states have (on average 1.4609929078014185) internal successors, (206), 141 states have internal predecessors, (206), 68 states have call successors, (68), 2 states have call predecessors, (68), 2 states have return successors, (68), 68 states have call predecessors, (68), 68 states have call successors, (68) [2023-12-19 13:10:27,831 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 212 states to 212 states and 342 transitions. [2023-12-19 13:10:27,831 INFO L78 Accepts]: Start accepts. Automaton has 212 states and 342 transitions. Word has length 426 [2023-12-19 13:10:27,832 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-19 13:10:27,832 INFO L495 AbstractCegarLoop]: Abstraction has 212 states and 342 transitions. [2023-12-19 13:10:27,832 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 10 states have (on average 16.7) internal successors, (167), 10 states have internal predecessors, (167), 5 states have call successors, (134), 3 states have call predecessors, (134), 5 states have return successors, (134), 5 states have call predecessors, (134), 5 states have call successors, (134) [2023-12-19 13:10:27,833 INFO L276 IsEmpty]: Start isEmpty. Operand 212 states and 342 transitions. [2023-12-19 13:10:27,835 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 428 [2023-12-19 13:10:27,835 INFO L187 NwaCegarLoop]: Found error trace [2023-12-19 13:10:27,835 INFO L195 NwaCegarLoop]: trace histogram [68, 68, 68, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-19 13:10:27,857 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Forceful destruction successful, exit code 0 [2023-12-19 13:10:28,041 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2,4 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-12-19 13:10:28,042 INFO L420 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-19 13:10:28,042 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-19 13:10:28,042 INFO L85 PathProgramCache]: Analyzing trace with hash 1879514847, now seen corresponding path program 1 times [2023-12-19 13:10:28,043 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-12-19 13:10:28,043 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1443665587] [2023-12-19 13:10:28,043 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-19 13:10:28,043 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-19 13:10:28,075 ERROR L246 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2023-12-19 13:10:28,076 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1443342183] [2023-12-19 13:10:28,076 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-19 13:10:28,076 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-12-19 13:10:28,076 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-12-19 13:10:28,077 INFO L229 MonitoredProcess]: Starting monitored process 5 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-12-19 13:10:28,095 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Waiting until timeout for monitored process [2023-12-19 13:10:28,283 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 13:10:28,287 INFO L262 TraceCheckSpWp]: Trace formula consists of 947 conjuncts, 6 conjunts are in the unsatisfiable core [2023-12-19 13:10:28,292 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-19 13:10:28,523 INFO L134 CoverageAnalysis]: Checked inductivity of 9112 backedges. 4383 proven. 123 refuted. 0 times theorem prover too weak. 4606 trivial. 0 not checked. [2023-12-19 13:10:28,523 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-12-19 13:10:28,732 INFO L134 CoverageAnalysis]: Checked inductivity of 9112 backedges. 78 proven. 123 refuted. 0 times theorem prover too weak. 8911 trivial. 0 not checked. [2023-12-19 13:10:28,733 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-12-19 13:10:28,733 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1443665587] [2023-12-19 13:10:28,733 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2023-12-19 13:10:28,733 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1443342183] [2023-12-19 13:10:28,733 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1443342183] provided 0 perfect and 2 imperfect interpolant sequences [2023-12-19 13:10:28,733 INFO L185 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2023-12-19 13:10:28,733 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [5, 5] total 7 [2023-12-19 13:10:28,734 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1458366331] [2023-12-19 13:10:28,734 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2023-12-19 13:10:28,734 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2023-12-19 13:10:28,734 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-12-19 13:10:28,735 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2023-12-19 13:10:28,735 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=17, Invalid=25, Unknown=0, NotChecked=0, Total=42 [2023-12-19 13:10:28,735 INFO L87 Difference]: Start difference. First operand 212 states and 342 transitions. Second operand has 7 states, 7 states have (on average 14.142857142857142) internal successors, (99), 7 states have internal predecessors, (99), 2 states have call successors, (109), 2 states have call predecessors, (109), 4 states have return successors, (110), 2 states have call predecessors, (110), 2 states have call successors, (110) [2023-12-19 13:10:29,015 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-19 13:10:29,015 INFO L93 Difference]: Finished difference Result 430 states and 688 transitions. [2023-12-19 13:10:29,015 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2023-12-19 13:10:29,016 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 14.142857142857142) internal successors, (99), 7 states have internal predecessors, (99), 2 states have call successors, (109), 2 states have call predecessors, (109), 4 states have return successors, (110), 2 states have call predecessors, (110), 2 states have call successors, (110) Word has length 427 [2023-12-19 13:10:29,018 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-19 13:10:29,020 INFO L225 Difference]: With dead ends: 430 [2023-12-19 13:10:29,020 INFO L226 Difference]: Without dead ends: 219 [2023-12-19 13:10:29,021 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 856 GetRequests, 846 SyntacticMatches, 1 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 5 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=45, Invalid=65, Unknown=0, NotChecked=0, Total=110 [2023-12-19 13:10:29,024 INFO L413 NwaCegarLoop]: 215 mSDtfsCounter, 264 mSDsluCounter, 290 mSDsCounter, 0 mSdLazyCounter, 371 mSolverCounterSat, 59 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 289 SdHoareTripleChecker+Valid, 505 SdHoareTripleChecker+Invalid, 430 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 59 IncrementalHoareTripleChecker+Valid, 371 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2023-12-19 13:10:29,026 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [289 Valid, 505 Invalid, 430 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [59 Valid, 371 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2023-12-19 13:10:29,028 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 219 states. [2023-12-19 13:10:29,049 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 219 to 215. [2023-12-19 13:10:29,049 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 215 states, 143 states have (on average 1.4335664335664335) internal successors, (205), 143 states have internal predecessors, (205), 68 states have call successors, (68), 3 states have call predecessors, (68), 3 states have return successors, (68), 68 states have call predecessors, (68), 68 states have call successors, (68) [2023-12-19 13:10:29,051 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 215 states to 215 states and 341 transitions. [2023-12-19 13:10:29,051 INFO L78 Accepts]: Start accepts. Automaton has 215 states and 341 transitions. Word has length 427 [2023-12-19 13:10:29,052 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-19 13:10:29,052 INFO L495 AbstractCegarLoop]: Abstraction has 215 states and 341 transitions. [2023-12-19 13:10:29,052 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 14.142857142857142) internal successors, (99), 7 states have internal predecessors, (99), 2 states have call successors, (109), 2 states have call predecessors, (109), 4 states have return successors, (110), 2 states have call predecessors, (110), 2 states have call successors, (110) [2023-12-19 13:10:29,052 INFO L276 IsEmpty]: Start isEmpty. Operand 215 states and 341 transitions. [2023-12-19 13:10:29,055 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 428 [2023-12-19 13:10:29,055 INFO L187 NwaCegarLoop]: Found error trace [2023-12-19 13:10:29,055 INFO L195 NwaCegarLoop]: trace histogram [68, 68, 68, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-19 13:10:29,076 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Ended with exit code 0 [2023-12-19 13:10:29,262 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3,5 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-12-19 13:10:29,262 INFO L420 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-19 13:10:29,262 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-19 13:10:29,263 INFO L85 PathProgramCache]: Analyzing trace with hash 1095618717, now seen corresponding path program 1 times [2023-12-19 13:10:29,263 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-12-19 13:10:29,263 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2085227533] [2023-12-19 13:10:29,263 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-19 13:10:29,264 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-19 13:10:29,292 ERROR L246 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2023-12-19 13:10:29,292 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [956367134] [2023-12-19 13:10:29,292 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-19 13:10:29,292 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-12-19 13:10:29,292 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-12-19 13:10:29,308 INFO L229 MonitoredProcess]: Starting monitored process 6 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-12-19 13:10:29,310 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Waiting until timeout for monitored process [2023-12-19 13:10:29,519 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 13:10:29,522 INFO L262 TraceCheckSpWp]: Trace formula consists of 949 conjuncts, 9 conjunts are in the unsatisfiable core [2023-12-19 13:10:29,527 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-19 13:10:29,819 INFO L134 CoverageAnalysis]: Checked inductivity of 9112 backedges. 3501 proven. 150 refuted. 0 times theorem prover too weak. 5461 trivial. 0 not checked. [2023-12-19 13:10:29,819 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-12-19 13:10:30,066 INFO L134 CoverageAnalysis]: Checked inductivity of 9112 backedges. 51 proven. 150 refuted. 0 times theorem prover too weak. 8911 trivial. 0 not checked. [2023-12-19 13:10:30,066 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-12-19 13:10:30,066 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2085227533] [2023-12-19 13:10:30,067 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2023-12-19 13:10:30,067 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [956367134] [2023-12-19 13:10:30,067 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [956367134] provided 0 perfect and 2 imperfect interpolant sequences [2023-12-19 13:10:30,067 INFO L185 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2023-12-19 13:10:30,067 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [7, 7] total 10 [2023-12-19 13:10:30,067 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1997803219] [2023-12-19 13:10:30,067 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2023-12-19 13:10:30,068 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2023-12-19 13:10:30,068 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-12-19 13:10:30,069 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2023-12-19 13:10:30,069 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=28, Invalid=62, Unknown=0, NotChecked=0, Total=90 [2023-12-19 13:10:30,069 INFO L87 Difference]: Start difference. First operand 215 states and 341 transitions. Second operand has 10 states, 10 states have (on average 10.1) internal successors, (101), 10 states have internal predecessors, (101), 2 states have call successors, (118), 2 states have call predecessors, (118), 4 states have return successors, (119), 2 states have call predecessors, (119), 2 states have call successors, (119) [2023-12-19 13:10:30,896 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-19 13:10:30,896 INFO L93 Difference]: Finished difference Result 610 states and 947 transitions. [2023-12-19 13:10:30,897 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 19 states. [2023-12-19 13:10:30,897 INFO L78 Accepts]: Start accepts. Automaton has has 10 states, 10 states have (on average 10.1) internal successors, (101), 10 states have internal predecessors, (101), 2 states have call successors, (118), 2 states have call predecessors, (118), 4 states have return successors, (119), 2 states have call predecessors, (119), 2 states have call successors, (119) Word has length 427 [2023-12-19 13:10:30,897 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-19 13:10:30,899 INFO L225 Difference]: With dead ends: 610 [2023-12-19 13:10:30,900 INFO L226 Difference]: Without dead ends: 396 [2023-12-19 13:10:30,900 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 865 GetRequests, 843 SyntacticMatches, 2 SemanticMatches, 20 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 69 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=137, Invalid=325, Unknown=0, NotChecked=0, Total=462 [2023-12-19 13:10:30,901 INFO L413 NwaCegarLoop]: 333 mSDtfsCounter, 554 mSDsluCounter, 760 mSDsCounter, 0 mSdLazyCounter, 1320 mSolverCounterSat, 173 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 572 SdHoareTripleChecker+Valid, 1093 SdHoareTripleChecker+Invalid, 1493 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 173 IncrementalHoareTripleChecker+Valid, 1320 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.7s IncrementalHoareTripleChecker+Time [2023-12-19 13:10:30,903 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [572 Valid, 1093 Invalid, 1493 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [173 Valid, 1320 Invalid, 0 Unknown, 0 Unchecked, 0.7s Time] [2023-12-19 13:10:30,904 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 396 states. [2023-12-19 13:10:30,925 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 396 to 242. [2023-12-19 13:10:30,926 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 242 states, 169 states have (on average 1.4497041420118344) internal successors, (245), 169 states have internal predecessors, (245), 68 states have call successors, (68), 4 states have call predecessors, (68), 4 states have return successors, (68), 68 states have call predecessors, (68), 68 states have call successors, (68) [2023-12-19 13:10:30,927 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 242 states to 242 states and 381 transitions. [2023-12-19 13:10:30,928 INFO L78 Accepts]: Start accepts. Automaton has 242 states and 381 transitions. Word has length 427 [2023-12-19 13:10:30,929 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-19 13:10:30,929 INFO L495 AbstractCegarLoop]: Abstraction has 242 states and 381 transitions. [2023-12-19 13:10:30,929 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 10 states have (on average 10.1) internal successors, (101), 10 states have internal predecessors, (101), 2 states have call successors, (118), 2 states have call predecessors, (118), 4 states have return successors, (119), 2 states have call predecessors, (119), 2 states have call successors, (119) [2023-12-19 13:10:30,929 INFO L276 IsEmpty]: Start isEmpty. Operand 242 states and 381 transitions. [2023-12-19 13:10:30,931 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 428 [2023-12-19 13:10:30,931 INFO L187 NwaCegarLoop]: Found error trace [2023-12-19 13:10:30,931 INFO L195 NwaCegarLoop]: trace histogram [68, 68, 68, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-19 13:10:30,952 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Forceful destruction successful, exit code 0 [2023-12-19 13:10:31,156 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4,6 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-12-19 13:10:31,156 INFO L420 AbstractCegarLoop]: === Iteration 6 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-19 13:10:31,156 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-19 13:10:31,157 INFO L85 PathProgramCache]: Analyzing trace with hash 198225439, now seen corresponding path program 1 times [2023-12-19 13:10:31,157 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-12-19 13:10:31,157 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1325482167] [2023-12-19 13:10:31,157 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-19 13:10:31,157 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-19 13:10:31,195 ERROR L246 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2023-12-19 13:10:31,195 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [724060835] [2023-12-19 13:10:31,195 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-19 13:10:31,195 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-12-19 13:10:31,196 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-12-19 13:10:31,213 INFO L229 MonitoredProcess]: Starting monitored process 7 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-12-19 13:10:31,245 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (7)] Waiting until timeout for monitored process [2023-12-19 13:10:31,425 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 13:10:31,428 INFO L262 TraceCheckSpWp]: Trace formula consists of 950 conjuncts, 27 conjunts are in the unsatisfiable core [2023-12-19 13:10:31,435 INFO L285 TraceCheckSpWp]: Computing forward predicates... Received shutdown request... [2023-12-19 13:24:49,403 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 [2023-12-19 13:24:49,410 WARN L340 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (7)] Timeout while monitored process is still running, waiting 1000 ms for graceful end [2023-12-19 13:24:49,920 INFO L805 garLoopResultBuilder]: Registering result TIMEOUT for location ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION (0 of 1 remaining) [2023-12-19 13:24:49,926 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (7)] Ended with exit code 0 [2023-12-19 13:24:50,121 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5,7 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-12-19 13:24:50,123 WARN L619 AbstractCegarLoop]: Verification canceled: while NwaCegarLoop was analyzing trace of length 428 with TraceHistMax 68,while TraceCheckSpWp was constructing forward predicates,while PolyPacSimplificationTermWalker was simplifying a ATOM-1 term,while PolyPacSimplificationTermWalker was simplifying 2 xjuncts wrt. a ∧-70-3-12-3-2-3-2-3-3-3-2-3-2-4-2-4-3-4-2-4-3-4-3-3-3-3-2-5-3-5-3-5-3-5-3-5-3-5-2-5-3-4-2-3-2-3-2-3-3-3-2-3-2-3-3-4-3-4-3-4-3-5-3-5-3-8-2-8-2-8-3-7-3-6-3-6-3-5-3-5-3-4-2-3-3-3-3-2-2-1 context. [2023-12-19 13:24:50,141 INFO L445 BasicCegarLoop]: Path program histogram: [1, 1, 1, 1, 1, 1] [2023-12-19 13:24:50,143 INFO L179 ceAbstractionStarter]: Computing trace abstraction results [2023-12-19 13:24:50,145 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 19.12 01:24:50 BoogieIcfgContainer [2023-12-19 13:24:50,148 INFO L131 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2023-12-19 13:24:50,148 INFO L158 Benchmark]: Toolchain (without parser) took 867273.04ms. Allocated memory was 251.7MB in the beginning and 7.7GB in the end (delta: 7.5GB). Free memory was 198.3MB in the beginning and 4.5GB in the end (delta: -4.3GB). Peak memory consumption was 5.7GB. Max. memory is 8.0GB. [2023-12-19 13:24:50,149 INFO L158 Benchmark]: CDTParser took 0.09ms. Allocated memory is still 203.4MB. Free memory is still 153.4MB. There was no memory consumed. Max. memory is 8.0GB. [2023-12-19 13:24:50,149 INFO L158 Benchmark]: CACSL2BoogieTranslator took 346.86ms. Allocated memory is still 251.7MB. Free memory was 198.1MB in the beginning and 172.7MB in the end (delta: 25.5MB). Peak memory consumption was 26.2MB. Max. memory is 8.0GB. [2023-12-19 13:24:50,149 INFO L158 Benchmark]: Boogie Procedure Inliner took 108.97ms. Allocated memory is still 251.7MB. Free memory was 172.7MB in the beginning and 211.1MB in the end (delta: -38.4MB). Peak memory consumption was 11.2MB. Max. memory is 8.0GB. [2023-12-19 13:24:50,149 INFO L158 Benchmark]: Boogie Preprocessor took 132.58ms. Allocated memory is still 251.7MB. Free memory was 211.1MB in the beginning and 195.3MB in the end (delta: 15.7MB). Peak memory consumption was 16.8MB. Max. memory is 8.0GB. [2023-12-19 13:24:50,149 INFO L158 Benchmark]: RCFGBuilder took 745.21ms. Allocated memory is still 251.7MB. Free memory was 195.3MB in the beginning and 207.4MB in the end (delta: -12.1MB). Peak memory consumption was 62.9MB. Max. memory is 8.0GB. [2023-12-19 13:24:50,149 INFO L158 Benchmark]: TraceAbstraction took 865934.95ms. Allocated memory was 251.7MB in the beginning and 7.7GB in the end (delta: 7.5GB). Free memory was 206.9MB in the beginning and 4.5GB in the end (delta: -4.3GB). Peak memory consumption was 5.7GB. Max. memory is 8.0GB. [2023-12-19 13:24:50,151 INFO L338 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.09ms. Allocated memory is still 203.4MB. Free memory is still 153.4MB. There was no memory consumed. Max. memory is 8.0GB. * CACSL2BoogieTranslator took 346.86ms. Allocated memory is still 251.7MB. Free memory was 198.1MB in the beginning and 172.7MB in the end (delta: 25.5MB). Peak memory consumption was 26.2MB. Max. memory is 8.0GB. * Boogie Procedure Inliner took 108.97ms. Allocated memory is still 251.7MB. Free memory was 172.7MB in the beginning and 211.1MB in the end (delta: -38.4MB). Peak memory consumption was 11.2MB. Max. memory is 8.0GB. * Boogie Preprocessor took 132.58ms. Allocated memory is still 251.7MB. Free memory was 211.1MB in the beginning and 195.3MB in the end (delta: 15.7MB). Peak memory consumption was 16.8MB. Max. memory is 8.0GB. * RCFGBuilder took 745.21ms. Allocated memory is still 251.7MB. Free memory was 195.3MB in the beginning and 207.4MB in the end (delta: -12.1MB). Peak memory consumption was 62.9MB. Max. memory is 8.0GB. * TraceAbstraction took 865934.95ms. Allocated memory was 251.7MB in the beginning and 7.7GB in the end (delta: 7.5GB). Free memory was 206.9MB in the beginning and 4.5GB in the end (delta: -4.3GB). Peak memory consumption was 5.7GB. 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 428 with TraceHistMax 68,while TraceCheckSpWp was constructing forward predicates,while PolyPacSimplificationTermWalker was simplifying a ATOM-1 term,while PolyPacSimplificationTermWalker was simplifying 2 xjuncts wrt. a ∧-70-3-12-3-2-3-2-3-3-3-2-3-2-4-2-4-3-4-2-4-3-4-3-3-3-3-2-5-3-5-3-5-3-5-3-5-3-5-2-5-3-4-2-3-2-3-2-3-3-3-2-3-2-3-3-4-3-4-3-4-3-5-3-5-3-8-2-8-2-8-3-7-3-6-3-6-3-5-3-5-3-4-2-3-3-3-3-2-2-1 context. - StatisticsResult: Ultimate Automizer benchmark data CFG has 2 procedures, 186 locations, 1 error locations. Started 1 CEGAR loops. OverallTime: 865.9s, OverallIterations: 6, TraceHistogramMax: 68, PathProgramHistogramMax: 1, EmptinessCheckTime: 0.0s, AutomataDifference: 1.7s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 1461 SdHoareTripleChecker+Valid, 1.3s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 1389 mSDsluCounter, 3139 SdHoareTripleChecker+Invalid, 1.1s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 1598 mSDsCounter, 305 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 2137 IncrementalHoareTripleChecker+Invalid, 2442 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 305 mSolverCounterUnsat, 1541 mSDtfsCounter, 2137 mSolverCounterSat, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown, PredicateUnifierStatistics: 0 DeclaredPredicates, 3425 GetRequests, 3380 SyntacticMatches, 3 SemanticMatches, 42 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 96 ImplicationChecksByTransitivity, 0.2s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=242occurred in iteration=5, InterpolantAutomatonStates: 42, 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, 5 MinimizatonAttempts, 290 StatesRemovedByMinimization, 4 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.2s SsaConstructionTime, 0.6s SatisfiabilityAnalysisTime, 2.4s InterpolantComputationTime, 2558 NumberOfCodeBlocks, 2558 NumberOfCodeBlocksAsserted, 6 NumberOfCheckSat, 3404 ConstructedInterpolants, 0 QuantifiedInterpolants, 8773 SizeOfPredicates, 14 NumberOfNonLiveVariables, 4735 ConjunctsInSsa, 25 ConjunctsInUnsatCore, 8 InterpolantComputations, 2 PerfectInterpolantSequences, 72122/72896 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