/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_fillercode_fillercodesize_ps-cn-100_file-79.i -------------------------------------------------------------------------------- This is Ultimate 0.2.4-tmp.fs.bitabs-eval-d9c3e40-m [2023-12-19 06:28:27,180 INFO L188 SettingsManager]: Resetting all preferences to default values... [2023-12-19 06:28:27,249 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 06:28:27,253 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2023-12-19 06:28:27,254 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2023-12-19 06:28:27,275 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2023-12-19 06:28:27,276 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2023-12-19 06:28:27,276 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2023-12-19 06:28:27,277 INFO L151 SettingsManager]: Preferences of Boogie Preprocessor differ from their defaults: [2023-12-19 06:28:27,280 INFO L153 SettingsManager]: * Use memory slicer=true [2023-12-19 06:28:27,280 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2023-12-19 06:28:27,280 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2023-12-19 06:28:27,281 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2023-12-19 06:28:27,282 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2023-12-19 06:28:27,282 INFO L153 SettingsManager]: * Use SBE=true [2023-12-19 06:28:27,282 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2023-12-19 06:28:27,282 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2023-12-19 06:28:27,282 INFO L153 SettingsManager]: * sizeof long=4 [2023-12-19 06:28:27,283 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2023-12-19 06:28:27,283 INFO L153 SettingsManager]: * sizeof POINTER=4 [2023-12-19 06:28:27,284 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2023-12-19 06:28:27,284 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2023-12-19 06:28:27,284 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2023-12-19 06:28:27,284 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2023-12-19 06:28:27,284 INFO L153 SettingsManager]: * Allow undefined functions=false [2023-12-19 06:28:27,285 INFO L153 SettingsManager]: * sizeof long double=12 [2023-12-19 06:28:27,285 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2023-12-19 06:28:27,285 INFO L153 SettingsManager]: * Use constant arrays=true [2023-12-19 06:28:27,285 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2023-12-19 06:28:27,286 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2023-12-19 06:28:27,286 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2023-12-19 06:28:27,286 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2023-12-19 06:28:27,286 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2023-12-19 06:28:27,287 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2023-12-19 06:28:27,287 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2023-12-19 06:28:27,287 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2023-12-19 06:28:27,287 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2023-12-19 06:28:27,287 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2023-12-19 06:28:27,287 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2023-12-19 06:28:27,287 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2023-12-19 06:28:27,288 INFO L153 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2023-12-19 06:28:27,288 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2023-12-19 06:28:27,288 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2023-12-19 06:28:27,288 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Use bitabs translation -> true [2023-12-19 06:28:27,484 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2023-12-19 06:28:27,501 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2023-12-19 06:28:27,503 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2023-12-19 06:28:27,504 INFO L270 PluginConnector]: Initializing CDTParser... [2023-12-19 06:28:27,504 INFO L274 PluginConnector]: CDTParser initialized [2023-12-19 06:28:27,505 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/hardness-nfm22/hardness_fillercode_fillercodesize_ps-cn-100_file-79.i [2023-12-19 06:28:28,661 INFO L533 CDTParser]: Created temporary CDT project at NULL [2023-12-19 06:28:28,839 INFO L384 CDTParser]: Found 1 translation units. [2023-12-19 06:28:28,841 INFO L180 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/hardness-nfm22/hardness_fillercode_fillercodesize_ps-cn-100_file-79.i [2023-12-19 06:28:28,864 INFO L427 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/2e73dc261/53396c91753d4225919a71cdfbf7c543/FLAGd6653007f [2023-12-19 06:28:28,874 INFO L435 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/2e73dc261/53396c91753d4225919a71cdfbf7c543 [2023-12-19 06:28:28,876 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2023-12-19 06:28:28,877 INFO L133 ToolchainWalker]: Walking toolchain with 5 elements. [2023-12-19 06:28:28,878 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2023-12-19 06:28:28,878 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2023-12-19 06:28:28,881 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2023-12-19 06:28:28,882 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 19.12 06:28:28" (1/1) ... [2023-12-19 06:28:28,882 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@3b47966e and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.12 06:28:28, skipping insertion in model container [2023-12-19 06:28:28,883 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 19.12 06:28:28" (1/1) ... [2023-12-19 06:28:28,932 INFO L177 MainTranslator]: Built tables and reachable declarations [2023-12-19 06:28:29,043 WARN L239 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/trunk/examples/svcomp/hardness-nfm22/hardness_fillercode_fillercodesize_ps-cn-100_file-79.i[916,929] [2023-12-19 06:28:29,118 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-12-19 06:28:29,146 INFO L202 MainTranslator]: Completed pre-run [2023-12-19 06:28:29,155 WARN L239 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/trunk/examples/svcomp/hardness-nfm22/hardness_fillercode_fillercodesize_ps-cn-100_file-79.i[916,929] [2023-12-19 06:28:29,230 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-12-19 06:28:29,243 INFO L206 MainTranslator]: Completed translation [2023-12-19 06:28:29,243 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.12 06:28:29 WrapperNode [2023-12-19 06:28:29,243 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2023-12-19 06:28:29,244 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2023-12-19 06:28:29,244 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2023-12-19 06:28:29,245 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2023-12-19 06:28:29,249 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.12 06:28:29" (1/1) ... [2023-12-19 06:28:29,260 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.12 06:28:29" (1/1) ... [2023-12-19 06:28:29,314 INFO L138 Inliner]: procedures = 26, calls = 86, calls flagged for inlining = 8, calls inlined = 8, statements flattened = 425 [2023-12-19 06:28:29,315 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2023-12-19 06:28:29,315 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2023-12-19 06:28:29,316 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2023-12-19 06:28:29,316 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2023-12-19 06:28:29,324 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.12 06:28:29" (1/1) ... [2023-12-19 06:28:29,324 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.12 06:28:29" (1/1) ... [2023-12-19 06:28:29,330 INFO L184 PluginConnector]: Executing the observer MemorySlicer from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.12 06:28:29" (1/1) ... [2023-12-19 06:28:29,347 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 06:28:29,347 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.12 06:28:29" (1/1) ... [2023-12-19 06:28:29,347 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.12 06:28:29" (1/1) ... [2023-12-19 06:28:29,395 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.12 06:28:29" (1/1) ... [2023-12-19 06:28:29,398 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.12 06:28:29" (1/1) ... [2023-12-19 06:28:29,406 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.12 06:28:29" (1/1) ... [2023-12-19 06:28:29,408 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.12 06:28:29" (1/1) ... [2023-12-19 06:28:29,442 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2023-12-19 06:28:29,443 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2023-12-19 06:28:29,443 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2023-12-19 06:28:29,443 INFO L274 PluginConnector]: RCFGBuilder initialized [2023-12-19 06:28:29,444 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.12 06:28:29" (1/1) ... [2023-12-19 06:28:29,448 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2023-12-19 06:28:29,456 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-12-19 06:28:29,493 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 06:28:29,559 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 06:28:29,575 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2023-12-19 06:28:29,576 INFO L130 BoogieDeclarations]: Found specification of procedure assume_abort_if_not [2023-12-19 06:28:29,577 INFO L138 BoogieDeclarations]: Found implementation of procedure assume_abort_if_not [2023-12-19 06:28:29,577 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#0 [2023-12-19 06:28:29,577 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2023-12-19 06:28:29,577 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2023-12-19 06:28:29,681 INFO L241 CfgBuilder]: Building ICFG [2023-12-19 06:28:29,685 INFO L267 CfgBuilder]: Building CFG for each procedure with an implementation [2023-12-19 06:28:30,162 INFO L282 CfgBuilder]: Performing block encoding [2023-12-19 06:28:30,198 INFO L304 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2023-12-19 06:28:30,198 INFO L309 CfgBuilder]: Removed 1 assume(true) statements. [2023-12-19 06:28:30,199 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 19.12 06:28:30 BoogieIcfgContainer [2023-12-19 06:28:30,199 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2023-12-19 06:28:30,201 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2023-12-19 06:28:30,201 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2023-12-19 06:28:30,204 INFO L274 PluginConnector]: TraceAbstraction initialized [2023-12-19 06:28:30,204 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 19.12 06:28:28" (1/3) ... [2023-12-19 06:28:30,205 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@30e498e5 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 19.12 06:28:30, skipping insertion in model container [2023-12-19 06:28:30,206 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.12 06:28:29" (2/3) ... [2023-12-19 06:28:30,206 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@30e498e5 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 19.12 06:28:30, skipping insertion in model container [2023-12-19 06:28:30,206 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 19.12 06:28:30" (3/3) ... [2023-12-19 06:28:30,207 INFO L112 eAbstractionObserver]: Analyzing ICFG hardness_fillercode_fillercodesize_ps-cn-100_file-79.i [2023-12-19 06:28:30,221 INFO L204 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2023-12-19 06:28:30,221 INFO L163 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2023-12-19 06:28:30,277 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2023-12-19 06:28:30,283 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;@480ec9b0, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2023-12-19 06:28:30,283 INFO L358 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2023-12-19 06:28:30,289 INFO L276 IsEmpty]: Start isEmpty. Operand has 167 states, 91 states have (on average 1.4285714285714286) internal successors, (130), 92 states have internal predecessors, (130), 73 states have call successors, (73), 1 states have call predecessors, (73), 1 states have return successors, (73), 73 states have call predecessors, (73), 73 states have call successors, (73) [2023-12-19 06:28:30,327 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 438 [2023-12-19 06:28:30,327 INFO L187 NwaCegarLoop]: Found error trace [2023-12-19 06:28:30,329 INFO L195 NwaCegarLoop]: trace histogram [73, 73, 73, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 06:28:30,329 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-19 06:28:30,335 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-19 06:28:30,336 INFO L85 PathProgramCache]: Analyzing trace with hash -1895325074, now seen corresponding path program 1 times [2023-12-19 06:28:30,343 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-12-19 06:28:30,343 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [280884691] [2023-12-19 06:28:30,344 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-19 06:28:30,344 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-19 06:28:30,499 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 06:28:30,617 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-12-19 06:28:30,617 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [280884691] [2023-12-19 06:28:30,617 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: Unsupported non-linear arithmetic [2023-12-19 06:28:30,618 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [686342519] [2023-12-19 06:28:30,618 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-19 06:28:30,618 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-12-19 06:28:30,618 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-12-19 06:28:30,622 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 06:28:30,666 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 06:28:30,876 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 06:28:30,884 INFO L262 TraceCheckSpWp]: Trace formula consists of 955 conjuncts, 1 conjunts are in the unsatisfiable core [2023-12-19 06:28:30,897 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-19 06:28:30,971 INFO L134 CoverageAnalysis]: Checked inductivity of 10512 backedges. 144 proven. 0 refuted. 0 times theorem prover too weak. 10368 trivial. 0 not checked. [2023-12-19 06:28:30,972 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-12-19 06:28:30,978 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [686342519] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-19 06:28:30,979 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-19 06:28:30,979 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2023-12-19 06:28:30,982 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1338032900] [2023-12-19 06:28:30,983 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-19 06:28:30,990 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2023-12-19 06:28:30,990 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-12-19 06:28:31,015 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2023-12-19 06:28:31,016 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2023-12-19 06:28:31,018 INFO L87 Difference]: Start difference. First operand has 167 states, 91 states have (on average 1.4285714285714286) internal successors, (130), 92 states have internal predecessors, (130), 73 states have call successors, (73), 1 states have call predecessors, (73), 1 states have return successors, (73), 73 states have call predecessors, (73), 73 states have call successors, (73) Second operand has 2 states, 2 states have (on average 38.5) internal successors, (77), 2 states have internal predecessors, (77), 2 states have call successors, (73), 2 states have call predecessors, (73), 1 states have return successors, (73), 1 states have call predecessors, (73), 2 states have call successors, (73) [2023-12-19 06:28:31,082 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-19 06:28:31,082 INFO L93 Difference]: Finished difference Result 331 states and 623 transitions. [2023-12-19 06:28:31,084 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2023-12-19 06:28:31,086 INFO L78 Accepts]: Start accepts. Automaton has has 2 states, 2 states have (on average 38.5) internal successors, (77), 2 states have internal predecessors, (77), 2 states have call successors, (73), 2 states have call predecessors, (73), 1 states have return successors, (73), 1 states have call predecessors, (73), 2 states have call successors, (73) Word has length 437 [2023-12-19 06:28:31,086 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-19 06:28:31,092 INFO L225 Difference]: With dead ends: 331 [2023-12-19 06:28:31,093 INFO L226 Difference]: Without dead ends: 165 [2023-12-19 06:28:31,097 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 436 GetRequests, 436 SyntacticMatches, 0 SemanticMatches, 0 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2023-12-19 06:28:31,099 INFO L413 NwaCegarLoop]: 267 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, 267 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 06:28:31,099 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 267 Invalid, 3 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 3 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2023-12-19 06:28:31,117 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 165 states. [2023-12-19 06:28:31,167 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 165 to 165. [2023-12-19 06:28:31,170 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 165 states, 90 states have (on average 1.3777777777777778) internal successors, (124), 90 states have internal predecessors, (124), 73 states have call successors, (73), 1 states have call predecessors, (73), 1 states have return successors, (73), 73 states have call predecessors, (73), 73 states have call successors, (73) [2023-12-19 06:28:31,175 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 165 states to 165 states and 270 transitions. [2023-12-19 06:28:31,176 INFO L78 Accepts]: Start accepts. Automaton has 165 states and 270 transitions. Word has length 437 [2023-12-19 06:28:31,176 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-19 06:28:31,176 INFO L495 AbstractCegarLoop]: Abstraction has 165 states and 270 transitions. [2023-12-19 06:28:31,177 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 2 states, 2 states have (on average 38.5) internal successors, (77), 2 states have internal predecessors, (77), 2 states have call successors, (73), 2 states have call predecessors, (73), 1 states have return successors, (73), 1 states have call predecessors, (73), 2 states have call successors, (73) [2023-12-19 06:28:31,177 INFO L276 IsEmpty]: Start isEmpty. Operand 165 states and 270 transitions. [2023-12-19 06:28:31,182 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 438 [2023-12-19 06:28:31,182 INFO L187 NwaCegarLoop]: Found error trace [2023-12-19 06:28:31,183 INFO L195 NwaCegarLoop]: trace histogram [73, 73, 73, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 06:28:31,197 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 06:28:31,394 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 06:28:31,396 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-19 06:28:31,396 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-19 06:28:31,396 INFO L85 PathProgramCache]: Analyzing trace with hash 1719710484, now seen corresponding path program 1 times [2023-12-19 06:28:31,396 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-12-19 06:28:31,397 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [431115804] [2023-12-19 06:28:31,397 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-19 06:28:31,397 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-19 06:28:31,508 ERROR L246 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2023-12-19 06:28:31,509 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1596105655] [2023-12-19 06:28:31,509 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-19 06:28:31,509 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-12-19 06:28:31,509 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-12-19 06:28:31,511 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 06:28:31,545 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 06:28:31,750 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 06:28:31,756 INFO L262 TraceCheckSpWp]: Trace formula consists of 955 conjuncts, 3 conjunts are in the unsatisfiable core [2023-12-19 06:28:31,768 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-19 06:28:31,831 INFO L134 CoverageAnalysis]: Checked inductivity of 10512 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 10512 trivial. 0 not checked. [2023-12-19 06:28:31,832 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-12-19 06:28:31,835 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-12-19 06:28:31,835 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [431115804] [2023-12-19 06:28:31,835 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2023-12-19 06:28:31,835 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1596105655] [2023-12-19 06:28:31,835 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1596105655] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-19 06:28:31,835 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-19 06:28:31,835 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2023-12-19 06:28:31,836 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [60971447] [2023-12-19 06:28:31,836 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-19 06:28:31,837 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-12-19 06:28:31,837 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-12-19 06:28:31,838 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-12-19 06:28:31,838 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-12-19 06:28:31,839 INFO L87 Difference]: Start difference. First operand 165 states and 270 transitions. Second operand has 3 states, 3 states have (on average 25.0) internal successors, (75), 3 states have internal predecessors, (75), 1 states have call successors, (73), 1 states have call predecessors, (73), 1 states have return successors, (73), 1 states have call predecessors, (73), 1 states have call successors, (73) [2023-12-19 06:28:31,894 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-19 06:28:31,895 INFO L93 Difference]: Finished difference Result 340 states and 553 transitions. [2023-12-19 06:28:31,895 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-12-19 06:28:31,895 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 25.0) internal successors, (75), 3 states have internal predecessors, (75), 1 states have call successors, (73), 1 states have call predecessors, (73), 1 states have return successors, (73), 1 states have call predecessors, (73), 1 states have call successors, (73) Word has length 437 [2023-12-19 06:28:31,897 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-19 06:28:31,898 INFO L225 Difference]: With dead ends: 340 [2023-12-19 06:28:31,898 INFO L226 Difference]: Without dead ends: 176 [2023-12-19 06:28:31,900 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 436 GetRequests, 435 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 06:28:31,901 INFO L413 NwaCegarLoop]: 275 mSDtfsCounter, 31 mSDsluCounter, 241 mSDsCounter, 0 mSdLazyCounter, 13 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 31 SdHoareTripleChecker+Valid, 516 SdHoareTripleChecker+Invalid, 15 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 13 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2023-12-19 06:28:31,901 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [31 Valid, 516 Invalid, 15 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 13 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2023-12-19 06:28:31,902 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 176 states. [2023-12-19 06:28:31,923 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 176 to 175. [2023-12-19 06:28:31,924 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 175 states, 95 states have (on average 1.3473684210526315) internal successors, (128), 96 states have internal predecessors, (128), 77 states have call successors, (77), 2 states have call predecessors, (77), 2 states have return successors, (77), 76 states have call predecessors, (77), 77 states have call successors, (77) [2023-12-19 06:28:31,925 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 175 states to 175 states and 282 transitions. [2023-12-19 06:28:31,926 INFO L78 Accepts]: Start accepts. Automaton has 175 states and 282 transitions. Word has length 437 [2023-12-19 06:28:31,927 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-19 06:28:31,927 INFO L495 AbstractCegarLoop]: Abstraction has 175 states and 282 transitions. [2023-12-19 06:28:31,927 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 25.0) internal successors, (75), 3 states have internal predecessors, (75), 1 states have call successors, (73), 1 states have call predecessors, (73), 1 states have return successors, (73), 1 states have call predecessors, (73), 1 states have call successors, (73) [2023-12-19 06:28:31,927 INFO L276 IsEmpty]: Start isEmpty. Operand 175 states and 282 transitions. [2023-12-19 06:28:31,932 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 439 [2023-12-19 06:28:31,932 INFO L187 NwaCegarLoop]: Found error trace [2023-12-19 06:28:31,932 INFO L195 NwaCegarLoop]: trace histogram [73, 73, 73, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 06:28:31,954 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 06:28:32,139 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 06:28:32,140 INFO L420 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-19 06:28:32,140 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-19 06:28:32,141 INFO L85 PathProgramCache]: Analyzing trace with hash -1529260950, now seen corresponding path program 1 times [2023-12-19 06:28:32,141 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-12-19 06:28:32,141 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [91018843] [2023-12-19 06:28:32,141 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-19 06:28:32,142 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-19 06:28:32,239 ERROR L246 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2023-12-19 06:28:32,239 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [367259175] [2023-12-19 06:28:32,240 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-19 06:28:32,242 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-12-19 06:28:32,243 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-12-19 06:28:32,246 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 06:28:32,289 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 06:28:32,518 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 06:28:32,523 INFO L262 TraceCheckSpWp]: Trace formula consists of 956 conjuncts, 6 conjunts are in the unsatisfiable core [2023-12-19 06:28:32,539 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-19 06:28:32,820 INFO L134 CoverageAnalysis]: Checked inductivity of 10512 backedges. 5088 proven. 84 refuted. 0 times theorem prover too weak. 5340 trivial. 0 not checked. [2023-12-19 06:28:32,820 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-12-19 06:28:33,096 INFO L134 CoverageAnalysis]: Checked inductivity of 10512 backedges. 132 proven. 84 refuted. 0 times theorem prover too weak. 10296 trivial. 0 not checked. [2023-12-19 06:28:33,097 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-12-19 06:28:33,097 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [91018843] [2023-12-19 06:28:33,097 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2023-12-19 06:28:33,097 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [367259175] [2023-12-19 06:28:33,097 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [367259175] provided 0 perfect and 2 imperfect interpolant sequences [2023-12-19 06:28:33,097 INFO L185 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2023-12-19 06:28:33,097 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [5, 5] total 7 [2023-12-19 06:28:33,098 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1956020424] [2023-12-19 06:28:33,098 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2023-12-19 06:28:33,101 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2023-12-19 06:28:33,101 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-12-19 06:28:33,102 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2023-12-19 06:28:33,103 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=17, Invalid=25, Unknown=0, NotChecked=0, Total=42 [2023-12-19 06:28:33,103 INFO L87 Difference]: Start difference. First operand 175 states and 282 transitions. Second operand has 7 states, 7 states have (on average 12.142857142857142) internal successors, (85), 7 states have internal predecessors, (85), 2 states have call successors, (101), 2 states have call predecessors, (101), 4 states have return successors, (102), 2 states have call predecessors, (102), 2 states have call successors, (102) [2023-12-19 06:28:33,427 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-19 06:28:33,427 INFO L93 Difference]: Finished difference Result 352 states and 560 transitions. [2023-12-19 06:28:33,430 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2023-12-19 06:28:33,430 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 12.142857142857142) internal successors, (85), 7 states have internal predecessors, (85), 2 states have call successors, (101), 2 states have call predecessors, (101), 4 states have return successors, (102), 2 states have call predecessors, (102), 2 states have call successors, (102) Word has length 438 [2023-12-19 06:28:33,431 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-19 06:28:33,433 INFO L225 Difference]: With dead ends: 352 [2023-12-19 06:28:33,434 INFO L226 Difference]: Without dead ends: 184 [2023-12-19 06:28:33,434 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 878 GetRequests, 868 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 06:28:33,435 INFO L413 NwaCegarLoop]: 186 mSDtfsCounter, 143 mSDsluCounter, 224 mSDsCounter, 0 mSdLazyCounter, 373 mSolverCounterSat, 17 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 186 SdHoareTripleChecker+Valid, 410 SdHoareTripleChecker+Invalid, 390 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 17 IncrementalHoareTripleChecker+Valid, 373 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2023-12-19 06:28:33,436 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [186 Valid, 410 Invalid, 390 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [17 Valid, 373 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2023-12-19 06:28:33,436 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 184 states. [2023-12-19 06:28:33,457 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 184 to 178. [2023-12-19 06:28:33,458 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 178 states, 97 states have (on average 1.3195876288659794) internal successors, (128), 98 states have internal predecessors, (128), 77 states have call successors, (77), 3 states have call predecessors, (77), 3 states have return successors, (77), 76 states have call predecessors, (77), 77 states have call successors, (77) [2023-12-19 06:28:33,459 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 178 states to 178 states and 282 transitions. [2023-12-19 06:28:33,459 INFO L78 Accepts]: Start accepts. Automaton has 178 states and 282 transitions. Word has length 438 [2023-12-19 06:28:33,460 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-19 06:28:33,460 INFO L495 AbstractCegarLoop]: Abstraction has 178 states and 282 transitions. [2023-12-19 06:28:33,461 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 12.142857142857142) internal successors, (85), 7 states have internal predecessors, (85), 2 states have call successors, (101), 2 states have call predecessors, (101), 4 states have return successors, (102), 2 states have call predecessors, (102), 2 states have call successors, (102) [2023-12-19 06:28:33,461 INFO L276 IsEmpty]: Start isEmpty. Operand 178 states and 282 transitions. [2023-12-19 06:28:33,463 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 440 [2023-12-19 06:28:33,463 INFO L187 NwaCegarLoop]: Found error trace [2023-12-19 06:28:33,463 INFO L195 NwaCegarLoop]: trace histogram [73, 73, 73, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 06:28:33,472 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Ended with exit code 0 [2023-12-19 06:28:33,672 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 06:28:33,675 INFO L420 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-19 06:28:33,675 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-19 06:28:33,675 INFO L85 PathProgramCache]: Analyzing trace with hash -1297012587, now seen corresponding path program 1 times [2023-12-19 06:28:33,675 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-12-19 06:28:33,676 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1579055586] [2023-12-19 06:28:33,676 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-19 06:28:33,676 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-19 06:28:33,717 ERROR L246 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2023-12-19 06:28:33,718 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1055046053] [2023-12-19 06:28:33,718 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-19 06:28:33,718 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-12-19 06:28:33,718 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-12-19 06:28:33,719 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 06:28:33,749 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 06:28:33,925 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 06:28:33,930 INFO L262 TraceCheckSpWp]: Trace formula consists of 961 conjuncts, 6 conjunts are in the unsatisfiable core [2023-12-19 06:28:33,936 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-19 06:28:34,142 INFO L134 CoverageAnalysis]: Checked inductivity of 10512 backedges. 4678 proven. 69 refuted. 0 times theorem prover too weak. 5765 trivial. 0 not checked. [2023-12-19 06:28:34,142 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-12-19 06:28:34,485 INFO L134 CoverageAnalysis]: Checked inductivity of 10512 backedges. 147 proven. 69 refuted. 0 times theorem prover too weak. 10296 trivial. 0 not checked. [2023-12-19 06:28:34,485 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-12-19 06:28:34,485 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1579055586] [2023-12-19 06:28:34,485 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2023-12-19 06:28:34,485 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1055046053] [2023-12-19 06:28:34,485 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1055046053] provided 0 perfect and 2 imperfect interpolant sequences [2023-12-19 06:28:34,485 INFO L185 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2023-12-19 06:28:34,486 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [5, 5] total 8 [2023-12-19 06:28:34,486 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [996191049] [2023-12-19 06:28:34,486 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2023-12-19 06:28:34,488 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2023-12-19 06:28:34,488 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-12-19 06:28:34,489 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2023-12-19 06:28:34,490 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=22, Invalid=34, Unknown=0, NotChecked=0, Total=56 [2023-12-19 06:28:34,490 INFO L87 Difference]: Start difference. First operand 178 states and 282 transitions. Second operand has 8 states, 8 states have (on average 13.875) internal successors, (111), 8 states have internal predecessors, (111), 3 states have call successors, (96), 2 states have call predecessors, (96), 4 states have return successors, (97), 3 states have call predecessors, (97), 3 states have call successors, (97) [2023-12-19 06:28:34,816 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-19 06:28:34,816 INFO L93 Difference]: Finished difference Result 359 states and 562 transitions. [2023-12-19 06:28:34,816 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2023-12-19 06:28:34,817 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 8 states have (on average 13.875) internal successors, (111), 8 states have internal predecessors, (111), 3 states have call successors, (96), 2 states have call predecessors, (96), 4 states have return successors, (97), 3 states have call predecessors, (97), 3 states have call successors, (97) Word has length 439 [2023-12-19 06:28:34,818 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-19 06:28:34,819 INFO L225 Difference]: With dead ends: 359 [2023-12-19 06:28:34,819 INFO L226 Difference]: Without dead ends: 188 [2023-12-19 06:28:34,820 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 880 GetRequests, 870 SyntacticMatches, 0 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 5 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=53, Invalid=79, Unknown=0, NotChecked=0, Total=132 [2023-12-19 06:28:34,820 INFO L413 NwaCegarLoop]: 178 mSDtfsCounter, 233 mSDsluCounter, 210 mSDsCounter, 0 mSdLazyCounter, 394 mSolverCounterSat, 116 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 282 SdHoareTripleChecker+Valid, 388 SdHoareTripleChecker+Invalid, 510 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 116 IncrementalHoareTripleChecker+Valid, 394 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2023-12-19 06:28:34,821 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [282 Valid, 388 Invalid, 510 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [116 Valid, 394 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2023-12-19 06:28:34,821 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 188 states. [2023-12-19 06:28:34,835 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 188 to 182. [2023-12-19 06:28:34,836 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 182 states, 100 states have (on average 1.29) internal successors, (129), 101 states have internal predecessors, (129), 77 states have call successors, (77), 4 states have call predecessors, (77), 4 states have return successors, (77), 76 states have call predecessors, (77), 77 states have call successors, (77) [2023-12-19 06:28:34,837 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 182 states to 182 states and 283 transitions. [2023-12-19 06:28:34,837 INFO L78 Accepts]: Start accepts. Automaton has 182 states and 283 transitions. Word has length 439 [2023-12-19 06:28:34,838 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-19 06:28:34,838 INFO L495 AbstractCegarLoop]: Abstraction has 182 states and 283 transitions. [2023-12-19 06:28:34,838 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 8 states have (on average 13.875) internal successors, (111), 8 states have internal predecessors, (111), 3 states have call successors, (96), 2 states have call predecessors, (96), 4 states have return successors, (97), 3 states have call predecessors, (97), 3 states have call successors, (97) [2023-12-19 06:28:34,838 INFO L276 IsEmpty]: Start isEmpty. Operand 182 states and 283 transitions. [2023-12-19 06:28:34,841 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 441 [2023-12-19 06:28:34,841 INFO L187 NwaCegarLoop]: Found error trace [2023-12-19 06:28:34,841 INFO L195 NwaCegarLoop]: trace histogram [73, 73, 73, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 06:28:34,848 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Forceful destruction successful, exit code 0 [2023-12-19 06:28:35,048 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 06:28:35,049 INFO L420 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-19 06:28:35,049 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-19 06:28:35,050 INFO L85 PathProgramCache]: Analyzing trace with hash -382736305, now seen corresponding path program 1 times [2023-12-19 06:28:35,050 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-12-19 06:28:35,050 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1088415743] [2023-12-19 06:28:35,050 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-19 06:28:35,050 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-19 06:28:35,087 ERROR L246 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2023-12-19 06:28:35,087 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1734697381] [2023-12-19 06:28:35,088 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-19 06:28:35,088 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-12-19 06:28:35,088 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-12-19 06:28:35,089 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 06:28:35,111 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 06:28:35,333 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 06:28:35,338 INFO L262 TraceCheckSpWp]: Trace formula consists of 964 conjuncts, 3 conjunts are in the unsatisfiable core [2023-12-19 06:28:35,343 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-19 06:28:35,733 INFO L134 CoverageAnalysis]: Checked inductivity of 10512 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 10512 trivial. 0 not checked. [2023-12-19 06:28:35,733 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-12-19 06:28:35,733 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-12-19 06:28:35,734 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1088415743] [2023-12-19 06:28:35,736 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2023-12-19 06:28:35,736 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1734697381] [2023-12-19 06:28:35,736 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1734697381] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-19 06:28:35,738 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-19 06:28:35,738 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2023-12-19 06:28:35,738 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1529349923] [2023-12-19 06:28:35,738 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-19 06:28:35,739 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-12-19 06:28:35,739 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-12-19 06:28:35,739 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-12-19 06:28:35,739 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-12-19 06:28:35,740 INFO L87 Difference]: Start difference. First operand 182 states and 283 transitions. Second operand has 3 states, 3 states have (on average 26.0) internal successors, (78), 2 states have internal predecessors, (78), 1 states have call successors, (73), 1 states have call predecessors, (73), 1 states have return successors, (73), 1 states have call predecessors, (73), 1 states have call successors, (73) [2023-12-19 06:28:35,774 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-19 06:28:35,774 INFO L93 Difference]: Finished difference Result 532 states and 827 transitions. [2023-12-19 06:28:35,775 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-12-19 06:28:35,775 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 26.0) internal successors, (78), 2 states have internal predecessors, (78), 1 states have call successors, (73), 1 states have call predecessors, (73), 1 states have return successors, (73), 1 states have call predecessors, (73), 1 states have call successors, (73) Word has length 440 [2023-12-19 06:28:35,776 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-19 06:28:35,777 INFO L225 Difference]: With dead ends: 532 [2023-12-19 06:28:35,777 INFO L226 Difference]: Without dead ends: 357 [2023-12-19 06:28:35,778 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 439 GetRequests, 438 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 06:28:35,780 INFO L413 NwaCegarLoop]: 265 mSDtfsCounter, 42 mSDsluCounter, 256 mSDsCounter, 0 mSdLazyCounter, 13 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 42 SdHoareTripleChecker+Valid, 521 SdHoareTripleChecker+Invalid, 14 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 13 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2023-12-19 06:28:35,782 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [42 Valid, 521 Invalid, 14 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 13 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2023-12-19 06:28:35,784 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 357 states. [2023-12-19 06:28:35,823 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 357 to 355. [2023-12-19 06:28:35,824 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 355 states, 196 states have (on average 1.2857142857142858) internal successors, (252), 197 states have internal predecessors, (252), 150 states have call successors, (150), 8 states have call predecessors, (150), 8 states have return successors, (150), 149 states have call predecessors, (150), 150 states have call successors, (150) [2023-12-19 06:28:35,827 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 355 states to 355 states and 552 transitions. [2023-12-19 06:28:35,827 INFO L78 Accepts]: Start accepts. Automaton has 355 states and 552 transitions. Word has length 440 [2023-12-19 06:28:35,830 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-19 06:28:35,830 INFO L495 AbstractCegarLoop]: Abstraction has 355 states and 552 transitions. [2023-12-19 06:28:35,830 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 26.0) internal successors, (78), 2 states have internal predecessors, (78), 1 states have call successors, (73), 1 states have call predecessors, (73), 1 states have return successors, (73), 1 states have call predecessors, (73), 1 states have call successors, (73) [2023-12-19 06:28:35,831 INFO L276 IsEmpty]: Start isEmpty. Operand 355 states and 552 transitions. [2023-12-19 06:28:35,834 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 442 [2023-12-19 06:28:35,834 INFO L187 NwaCegarLoop]: Found error trace [2023-12-19 06:28:35,834 INFO L195 NwaCegarLoop]: trace histogram [73, 73, 73, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 06:28:35,844 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 06:28:36,045 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 06:28:36,045 INFO L420 AbstractCegarLoop]: === Iteration 6 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-19 06:28:36,046 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-19 06:28:36,047 INFO L85 PathProgramCache]: Analyzing trace with hash -11278666, now seen corresponding path program 1 times [2023-12-19 06:28:36,047 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-12-19 06:28:36,047 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [459912107] [2023-12-19 06:28:36,047 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-19 06:28:36,047 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-19 06:28:36,150 ERROR L246 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2023-12-19 06:28:36,150 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1000019214] [2023-12-19 06:28:36,150 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-19 06:28:36,150 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-12-19 06:28:36,151 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-12-19 06:28:36,192 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 06:28:36,201 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 06:28:36,483 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 06:28:36,487 INFO L262 TraceCheckSpWp]: Trace formula consists of 966 conjuncts, 8 conjunts are in the unsatisfiable core [2023-12-19 06:28:36,493 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-19 06:28:36,872 INFO L134 CoverageAnalysis]: Checked inductivity of 10512 backedges. 3348 proven. 174 refuted. 0 times theorem prover too weak. 6990 trivial. 0 not checked. [2023-12-19 06:28:36,872 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-12-19 06:28:37,145 INFO L134 CoverageAnalysis]: Checked inductivity of 10512 backedges. 42 proven. 174 refuted. 0 times theorem prover too weak. 10296 trivial. 0 not checked. [2023-12-19 06:28:37,145 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-12-19 06:28:37,145 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [459912107] [2023-12-19 06:28:37,145 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2023-12-19 06:28:37,145 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1000019214] [2023-12-19 06:28:37,145 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1000019214] provided 0 perfect and 2 imperfect interpolant sequences [2023-12-19 06:28:37,145 INFO L185 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2023-12-19 06:28:37,145 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [6, 6] total 9 [2023-12-19 06:28:37,146 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [788069692] [2023-12-19 06:28:37,146 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2023-12-19 06:28:37,146 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2023-12-19 06:28:37,146 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-12-19 06:28:37,147 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2023-12-19 06:28:37,147 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=22, Invalid=50, Unknown=0, NotChecked=0, Total=72 [2023-12-19 06:28:37,147 INFO L87 Difference]: Start difference. First operand 355 states and 552 transitions. Second operand has 9 states, 9 states have (on average 10.444444444444445) internal successors, (94), 9 states have internal predecessors, (94), 2 states have call successors, (131), 2 states have call predecessors, (131), 4 states have return successors, (132), 2 states have call predecessors, (132), 2 states have call successors, (132) [2023-12-19 06:28:37,572 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-19 06:28:37,573 INFO L93 Difference]: Finished difference Result 554 states and 846 transitions. [2023-12-19 06:28:37,574 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2023-12-19 06:28:37,574 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 9 states have (on average 10.444444444444445) internal successors, (94), 9 states have internal predecessors, (94), 2 states have call successors, (131), 2 states have call predecessors, (131), 4 states have return successors, (132), 2 states have call predecessors, (132), 2 states have call successors, (132) Word has length 441 [2023-12-19 06:28:37,575 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-19 06:28:37,578 INFO L225 Difference]: With dead ends: 554 [2023-12-19 06:28:37,578 INFO L226 Difference]: Without dead ends: 379 [2023-12-19 06:28:37,579 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 888 GetRequests, 873 SyntacticMatches, 1 SemanticMatches, 14 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 19 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=87, Invalid=153, Unknown=0, NotChecked=0, Total=240 [2023-12-19 06:28:37,580 INFO L413 NwaCegarLoop]: 181 mSDtfsCounter, 185 mSDsluCounter, 214 mSDsCounter, 0 mSdLazyCounter, 379 mSolverCounterSat, 187 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 187 SdHoareTripleChecker+Valid, 395 SdHoareTripleChecker+Invalid, 566 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 187 IncrementalHoareTripleChecker+Valid, 379 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2023-12-19 06:28:37,580 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [187 Valid, 395 Invalid, 566 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [187 Valid, 379 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2023-12-19 06:28:37,581 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 379 states. [2023-12-19 06:28:37,631 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 379 to 363. [2023-12-19 06:28:37,632 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 363 states, 202 states have (on average 1.2673267326732673) internal successors, (256), 203 states have internal predecessors, (256), 150 states have call successors, (150), 10 states have call predecessors, (150), 10 states have return successors, (150), 149 states have call predecessors, (150), 150 states have call successors, (150) [2023-12-19 06:28:37,634 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 363 states to 363 states and 556 transitions. [2023-12-19 06:28:37,634 INFO L78 Accepts]: Start accepts. Automaton has 363 states and 556 transitions. Word has length 441 [2023-12-19 06:28:37,635 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-19 06:28:37,635 INFO L495 AbstractCegarLoop]: Abstraction has 363 states and 556 transitions. [2023-12-19 06:28:37,635 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 9 states have (on average 10.444444444444445) internal successors, (94), 9 states have internal predecessors, (94), 2 states have call successors, (131), 2 states have call predecessors, (131), 4 states have return successors, (132), 2 states have call predecessors, (132), 2 states have call successors, (132) [2023-12-19 06:28:37,635 INFO L276 IsEmpty]: Start isEmpty. Operand 363 states and 556 transitions. [2023-12-19 06:28:37,638 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 442 [2023-12-19 06:28:37,638 INFO L187 NwaCegarLoop]: Found error trace [2023-12-19 06:28:37,638 INFO L195 NwaCegarLoop]: trace histogram [73, 73, 73, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 06:28:37,653 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (7)] Forceful destruction successful, exit code 0 [2023-12-19 06:28:37,846 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 06:28:37,846 INFO L420 AbstractCegarLoop]: === Iteration 7 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-19 06:28:37,847 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-19 06:28:37,847 INFO L85 PathProgramCache]: Analyzing trace with hash 779351979, now seen corresponding path program 1 times [2023-12-19 06:28:37,847 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-12-19 06:28:37,847 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [113200219] [2023-12-19 06:28:37,847 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-19 06:28:37,847 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-19 06:28:37,886 ERROR L246 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2023-12-19 06:28:37,886 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [65991358] [2023-12-19 06:28:37,886 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-19 06:28:37,887 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-12-19 06:28:37,887 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-12-19 06:28:37,893 INFO L229 MonitoredProcess]: Starting monitored process 8 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-12-19 06:28:37,904 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (8)] Waiting until timeout for monitored process [2023-12-19 06:28:38,147 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 06:28:38,152 INFO L262 TraceCheckSpWp]: Trace formula consists of 964 conjuncts, 8 conjunts are in the unsatisfiable core [2023-12-19 06:28:38,164 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-19 06:28:39,026 INFO L134 CoverageAnalysis]: Checked inductivity of 10512 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 10512 trivial. 0 not checked. [2023-12-19 06:28:39,027 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-12-19 06:28:39,027 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-12-19 06:28:39,027 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [113200219] [2023-12-19 06:28:39,027 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2023-12-19 06:28:39,027 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [65991358] [2023-12-19 06:28:39,027 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [65991358] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-19 06:28:39,027 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-19 06:28:39,027 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2023-12-19 06:28:39,027 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [400428587] [2023-12-19 06:28:39,028 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-19 06:28:39,028 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2023-12-19 06:28:39,028 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-12-19 06:28:39,029 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2023-12-19 06:28:39,029 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=10, Invalid=10, Unknown=0, NotChecked=0, Total=20 [2023-12-19 06:28:39,029 INFO L87 Difference]: Start difference. First operand 363 states and 556 transitions. Second operand has 5 states, 5 states have (on average 15.8) internal successors, (79), 4 states have internal predecessors, (79), 1 states have call successors, (73), 1 states have call predecessors, (73), 1 states have return successors, (73), 1 states have call predecessors, (73), 1 states have call successors, (73) [2023-12-19 06:28:39,234 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-19 06:28:39,234 INFO L93 Difference]: Finished difference Result 721 states and 1102 transitions. [2023-12-19 06:28:39,234 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2023-12-19 06:28:39,235 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 15.8) internal successors, (79), 4 states have internal predecessors, (79), 1 states have call successors, (73), 1 states have call predecessors, (73), 1 states have return successors, (73), 1 states have call predecessors, (73), 1 states have call successors, (73) Word has length 441 [2023-12-19 06:28:39,236 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-19 06:28:39,237 INFO L225 Difference]: With dead ends: 721 [2023-12-19 06:28:39,237 INFO L226 Difference]: Without dead ends: 365 [2023-12-19 06:28:39,239 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 440 GetRequests, 437 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=10, Invalid=10, Unknown=0, NotChecked=0, Total=20 [2023-12-19 06:28:39,239 INFO L413 NwaCegarLoop]: 255 mSDtfsCounter, 110 mSDsluCounter, 349 mSDsCounter, 0 mSdLazyCounter, 162 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 110 SdHoareTripleChecker+Valid, 604 SdHoareTripleChecker+Invalid, 163 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 162 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2023-12-19 06:28:39,239 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [110 Valid, 604 Invalid, 163 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 162 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2023-12-19 06:28:39,240 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 365 states. [2023-12-19 06:28:39,266 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 365 to 363. [2023-12-19 06:28:39,267 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 363 states, 202 states have (on average 1.2623762376237624) internal successors, (255), 203 states have internal predecessors, (255), 150 states have call successors, (150), 10 states have call predecessors, (150), 10 states have return successors, (150), 149 states have call predecessors, (150), 150 states have call successors, (150) [2023-12-19 06:28:39,269 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 363 states to 363 states and 555 transitions. [2023-12-19 06:28:39,269 INFO L78 Accepts]: Start accepts. Automaton has 363 states and 555 transitions. Word has length 441 [2023-12-19 06:28:39,270 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-19 06:28:39,270 INFO L495 AbstractCegarLoop]: Abstraction has 363 states and 555 transitions. [2023-12-19 06:28:39,270 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 15.8) internal successors, (79), 4 states have internal predecessors, (79), 1 states have call successors, (73), 1 states have call predecessors, (73), 1 states have return successors, (73), 1 states have call predecessors, (73), 1 states have call successors, (73) [2023-12-19 06:28:39,270 INFO L276 IsEmpty]: Start isEmpty. Operand 363 states and 555 transitions. [2023-12-19 06:28:39,272 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 443 [2023-12-19 06:28:39,272 INFO L187 NwaCegarLoop]: Found error trace [2023-12-19 06:28:39,272 INFO L195 NwaCegarLoop]: trace histogram [73, 73, 73, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 06:28:39,292 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (8)] Forceful destruction successful, exit code 0 [2023-12-19 06:28:39,480 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6,8 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-12-19 06:28:39,480 INFO L420 AbstractCegarLoop]: === Iteration 8 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-19 06:28:39,480 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-19 06:28:39,481 INFO L85 PathProgramCache]: Analyzing trace with hash 200294282, now seen corresponding path program 1 times [2023-12-19 06:28:39,481 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-12-19 06:28:39,481 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [209848314] [2023-12-19 06:28:39,481 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-19 06:28:39,483 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-19 06:28:39,519 ERROR L246 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2023-12-19 06:28:39,519 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1380899681] [2023-12-19 06:28:39,519 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-19 06:28:39,520 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-12-19 06:28:39,520 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-12-19 06:28:39,521 INFO L229 MonitoredProcess]: Starting monitored process 9 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-12-19 06:28:39,558 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (9)] Waiting until timeout for monitored process [2023-12-19 06:28:39,806 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 06:28:39,809 INFO L262 TraceCheckSpWp]: Trace formula consists of 966 conjuncts, 2 conjunts are in the unsatisfiable core [2023-12-19 06:28:39,814 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-19 06:28:39,849 INFO L134 CoverageAnalysis]: Checked inductivity of 10512 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 10512 trivial. 0 not checked. [2023-12-19 06:28:39,849 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-12-19 06:28:39,849 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-12-19 06:28:39,849 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [209848314] [2023-12-19 06:28:39,849 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2023-12-19 06:28:39,849 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1380899681] [2023-12-19 06:28:39,849 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1380899681] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-19 06:28:39,849 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-19 06:28:39,849 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2023-12-19 06:28:39,849 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1256740686] [2023-12-19 06:28:39,850 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-19 06:28:39,850 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-12-19 06:28:39,850 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-12-19 06:28:39,850 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-12-19 06:28:39,851 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-12-19 06:28:39,851 INFO L87 Difference]: Start difference. First operand 363 states and 555 transitions. Second operand has 3 states, 3 states have (on average 26.666666666666668) internal successors, (80), 3 states have internal predecessors, (80), 1 states have call successors, (73), 1 states have call predecessors, (73), 1 states have return successors, (73), 1 states have call predecessors, (73), 1 states have call successors, (73) [2023-12-19 06:28:39,911 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-19 06:28:39,911 INFO L93 Difference]: Finished difference Result 719 states and 1099 transitions. [2023-12-19 06:28:39,912 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-12-19 06:28:39,912 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 26.666666666666668) internal successors, (80), 3 states have internal predecessors, (80), 1 states have call successors, (73), 1 states have call predecessors, (73), 1 states have return successors, (73), 1 states have call predecessors, (73), 1 states have call successors, (73) Word has length 442 [2023-12-19 06:28:39,913 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-19 06:28:39,914 INFO L225 Difference]: With dead ends: 719 [2023-12-19 06:28:39,914 INFO L226 Difference]: Without dead ends: 363 [2023-12-19 06:28:39,916 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 441 GetRequests, 440 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 06:28:39,933 INFO L413 NwaCegarLoop]: 257 mSDtfsCounter, 16 mSDsluCounter, 239 mSDsCounter, 0 mSdLazyCounter, 8 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 16 SdHoareTripleChecker+Valid, 496 SdHoareTripleChecker+Invalid, 8 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 8 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2023-12-19 06:28:39,933 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [16 Valid, 496 Invalid, 8 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 8 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2023-12-19 06:28:39,934 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 363 states. [2023-12-19 06:28:39,988 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 363 to 363. [2023-12-19 06:28:39,989 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 363 states, 202 states have (on average 1.2524752475247525) internal successors, (253), 203 states have internal predecessors, (253), 150 states have call successors, (150), 10 states have call predecessors, (150), 10 states have return successors, (150), 149 states have call predecessors, (150), 150 states have call successors, (150) [2023-12-19 06:28:39,992 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 363 states to 363 states and 553 transitions. [2023-12-19 06:28:39,992 INFO L78 Accepts]: Start accepts. Automaton has 363 states and 553 transitions. Word has length 442 [2023-12-19 06:28:39,993 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-19 06:28:39,993 INFO L495 AbstractCegarLoop]: Abstraction has 363 states and 553 transitions. [2023-12-19 06:28:39,993 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 26.666666666666668) internal successors, (80), 3 states have internal predecessors, (80), 1 states have call successors, (73), 1 states have call predecessors, (73), 1 states have return successors, (73), 1 states have call predecessors, (73), 1 states have call successors, (73) [2023-12-19 06:28:39,994 INFO L276 IsEmpty]: Start isEmpty. Operand 363 states and 553 transitions. [2023-12-19 06:28:39,996 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 443 [2023-12-19 06:28:39,996 INFO L187 NwaCegarLoop]: Found error trace [2023-12-19 06:28:39,996 INFO L195 NwaCegarLoop]: trace histogram [73, 73, 73, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 06:28:40,011 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (9)] Forceful destruction successful, exit code 0 [2023-12-19 06:28:40,197 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 9 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable7 [2023-12-19 06:28:40,198 INFO L420 AbstractCegarLoop]: === Iteration 9 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-19 06:28:40,198 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-19 06:28:40,198 INFO L85 PathProgramCache]: Analyzing trace with hash 458459720, now seen corresponding path program 1 times [2023-12-19 06:28:40,198 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-12-19 06:28:40,198 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [120513528] [2023-12-19 06:28:40,199 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-19 06:28:40,199 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-19 06:28:40,245 ERROR L246 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2023-12-19 06:28:40,246 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [722933999] [2023-12-19 06:28:40,246 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-19 06:28:40,246 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-12-19 06:28:40,246 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-12-19 06:28:40,293 INFO L229 MonitoredProcess]: Starting monitored process 10 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-12-19 06:28:40,294 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (10)] Waiting until timeout for monitored process [2023-12-19 06:28:40,565 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 06:28:40,570 INFO L262 TraceCheckSpWp]: Trace formula consists of 966 conjuncts, 22 conjunts are in the unsatisfiable core [2023-12-19 06:28:40,586 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-19 06:28:41,982 INFO L134 CoverageAnalysis]: Checked inductivity of 10512 backedges. 7431 proven. 249 refuted. 0 times theorem prover too weak. 2832 trivial. 0 not checked. [2023-12-19 06:28:41,983 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-12-19 06:28:44,046 INFO L134 CoverageAnalysis]: Checked inductivity of 10512 backedges. 381 proven. 258 refuted. 0 times theorem prover too weak. 9873 trivial. 0 not checked. [2023-12-19 06:28:44,046 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-12-19 06:28:44,046 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [120513528] [2023-12-19 06:28:44,047 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2023-12-19 06:28:44,047 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [722933999] [2023-12-19 06:28:44,047 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [722933999] provided 0 perfect and 2 imperfect interpolant sequences [2023-12-19 06:28:44,047 INFO L185 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2023-12-19 06:28:44,047 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [16, 16] total 30 [2023-12-19 06:28:44,047 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1973925789] [2023-12-19 06:28:44,047 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2023-12-19 06:28:44,048 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 30 states [2023-12-19 06:28:44,048 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-12-19 06:28:44,048 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 30 interpolants. [2023-12-19 06:28:44,049 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=176, Invalid=694, Unknown=0, NotChecked=0, Total=870 [2023-12-19 06:28:44,049 INFO L87 Difference]: Start difference. First operand 363 states and 553 transitions. Second operand has 30 states, 30 states have (on average 4.966666666666667) internal successors, (149), 30 states have internal predecessors, (149), 9 states have call successors, (119), 5 states have call predecessors, (119), 10 states have return successors, (119), 9 states have call predecessors, (119), 9 states have call successors, (119) [2023-12-19 06:28:49,516 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-19 06:28:49,517 INFO L93 Difference]: Finished difference Result 2065 states and 2993 transitions. [2023-12-19 06:28:49,517 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 64 states. [2023-12-19 06:28:49,518 INFO L78 Accepts]: Start accepts. Automaton has has 30 states, 30 states have (on average 4.966666666666667) internal successors, (149), 30 states have internal predecessors, (149), 9 states have call successors, (119), 5 states have call predecessors, (119), 10 states have return successors, (119), 9 states have call predecessors, (119), 9 states have call successors, (119) Word has length 442 [2023-12-19 06:28:49,518 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-19 06:28:49,527 INFO L225 Difference]: With dead ends: 2065 [2023-12-19 06:28:49,527 INFO L226 Difference]: Without dead ends: 1709 [2023-12-19 06:28:49,529 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 953 GetRequests, 867 SyntacticMatches, 0 SemanticMatches, 86 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2269 ImplicationChecksByTransitivity, 2.3s TimeCoverageRelationStatistics Valid=1952, Invalid=5704, Unknown=0, NotChecked=0, Total=7656 [2023-12-19 06:28:49,531 INFO L413 NwaCegarLoop]: 315 mSDtfsCounter, 1790 mSDsluCounter, 1337 mSDsCounter, 0 mSdLazyCounter, 2846 mSolverCounterSat, 1821 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1829 SdHoareTripleChecker+Valid, 1652 SdHoareTripleChecker+Invalid, 4667 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1821 IncrementalHoareTripleChecker+Valid, 2846 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 3.3s IncrementalHoareTripleChecker+Time [2023-12-19 06:28:49,531 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1829 Valid, 1652 Invalid, 4667 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1821 Valid, 2846 Invalid, 0 Unknown, 0 Unchecked, 3.3s Time] [2023-12-19 06:28:49,533 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1709 states. [2023-12-19 06:28:49,632 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1709 to 994. [2023-12-19 06:28:49,634 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 994 states, 591 states have (on average 1.257191201353638) internal successors, (743), 597 states have internal predecessors, (743), 366 states have call successors, (366), 36 states have call predecessors, (366), 36 states have return successors, (366), 360 states have call predecessors, (366), 366 states have call successors, (366) [2023-12-19 06:28:49,639 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 994 states to 994 states and 1475 transitions. [2023-12-19 06:28:49,640 INFO L78 Accepts]: Start accepts. Automaton has 994 states and 1475 transitions. Word has length 442 [2023-12-19 06:28:49,640 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-19 06:28:49,640 INFO L495 AbstractCegarLoop]: Abstraction has 994 states and 1475 transitions. [2023-12-19 06:28:49,640 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 30 states, 30 states have (on average 4.966666666666667) internal successors, (149), 30 states have internal predecessors, (149), 9 states have call successors, (119), 5 states have call predecessors, (119), 10 states have return successors, (119), 9 states have call predecessors, (119), 9 states have call successors, (119) [2023-12-19 06:28:49,640 INFO L276 IsEmpty]: Start isEmpty. Operand 994 states and 1475 transitions. [2023-12-19 06:28:49,642 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 443 [2023-12-19 06:28:49,643 INFO L187 NwaCegarLoop]: Found error trace [2023-12-19 06:28:49,643 INFO L195 NwaCegarLoop]: trace histogram [73, 73, 73, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 06:28:49,650 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (10)] Forceful destruction successful, exit code 0 [2023-12-19 06:28:49,850 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8,10 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-12-19 06:28:49,851 INFO L420 AbstractCegarLoop]: === Iteration 10 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-19 06:28:49,851 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-19 06:28:49,851 INFO L85 PathProgramCache]: Analyzing trace with hash 677314438, now seen corresponding path program 1 times [2023-12-19 06:28:49,851 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-12-19 06:28:49,852 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2126878009] [2023-12-19 06:28:49,852 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-19 06:28:49,852 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-19 06:28:49,899 ERROR L246 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2023-12-19 06:28:49,899 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1425801022] [2023-12-19 06:28:49,899 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-19 06:28:49,900 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-12-19 06:28:49,900 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-12-19 06:28:49,901 INFO L229 MonitoredProcess]: Starting monitored process 11 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-12-19 06:28:49,903 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (11)] Waiting until timeout for monitored process [2023-12-19 06:28:50,190 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 06:28:50,195 INFO L262 TraceCheckSpWp]: Trace formula consists of 966 conjuncts, 34 conjunts are in the unsatisfiable core [2023-12-19 06:28:50,201 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-19 06:28:52,076 INFO L134 CoverageAnalysis]: Checked inductivity of 10512 backedges. 7354 proven. 375 refuted. 0 times theorem prover too weak. 2783 trivial. 0 not checked. [2023-12-19 06:28:52,076 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-12-19 06:28:55,333 INFO L134 CoverageAnalysis]: Checked inductivity of 10512 backedges. 381 proven. 258 refuted. 0 times theorem prover too weak. 9873 trivial. 0 not checked. [2023-12-19 06:28:55,333 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-12-19 06:28:55,333 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2126878009] [2023-12-19 06:28:55,333 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2023-12-19 06:28:55,333 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1425801022] [2023-12-19 06:28:55,334 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1425801022] provided 0 perfect and 2 imperfect interpolant sequences [2023-12-19 06:28:55,334 INFO L185 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2023-12-19 06:28:55,334 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [22, 18] total 38 [2023-12-19 06:28:55,334 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [952708543] [2023-12-19 06:28:55,334 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2023-12-19 06:28:55,335 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 38 states [2023-12-19 06:28:55,335 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-12-19 06:28:55,335 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 38 interpolants. [2023-12-19 06:28:55,336 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=255, Invalid=1151, Unknown=0, NotChecked=0, Total=1406 [2023-12-19 06:28:55,336 INFO L87 Difference]: Start difference. First operand 994 states and 1475 transitions. Second operand has 38 states, 38 states have (on average 4.0) internal successors, (152), 38 states have internal predecessors, (152), 9 states have call successors, (119), 6 states have call predecessors, (119), 11 states have return successors, (119), 8 states have call predecessors, (119), 9 states have call successors, (119) [2023-12-19 06:29:13,246 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-19 06:29:13,247 INFO L93 Difference]: Finished difference Result 5423 states and 7547 transitions. [2023-12-19 06:29:13,264 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 182 states. [2023-12-19 06:29:13,265 INFO L78 Accepts]: Start accepts. Automaton has has 38 states, 38 states have (on average 4.0) internal successors, (152), 38 states have internal predecessors, (152), 9 states have call successors, (119), 6 states have call predecessors, (119), 11 states have return successors, (119), 8 states have call predecessors, (119), 9 states have call successors, (119) Word has length 442 [2023-12-19 06:29:13,265 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-19 06:29:13,280 INFO L225 Difference]: With dead ends: 5423 [2023-12-19 06:29:13,280 INFO L226 Difference]: Without dead ends: 4499 [2023-12-19 06:29:13,328 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 1071 GetRequests, 861 SyntacticMatches, 0 SemanticMatches, 210 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 18114 ImplicationChecksByTransitivity, 12.4s TimeCoverageRelationStatistics Valid=8141, Invalid=36591, Unknown=0, NotChecked=0, Total=44732 [2023-12-19 06:29:13,328 INFO L413 NwaCegarLoop]: 316 mSDtfsCounter, 3134 mSDsluCounter, 1995 mSDsCounter, 0 mSdLazyCounter, 4395 mSolverCounterSat, 3514 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 4.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 3161 SdHoareTripleChecker+Valid, 2311 SdHoareTripleChecker+Invalid, 7909 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 3514 IncrementalHoareTripleChecker+Valid, 4395 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 5.3s IncrementalHoareTripleChecker+Time [2023-12-19 06:29:13,329 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [3161 Valid, 2311 Invalid, 7909 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [3514 Valid, 4395 Invalid, 0 Unknown, 0 Unchecked, 5.3s Time] [2023-12-19 06:29:13,333 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 4499 states. [2023-12-19 06:29:13,489 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 4499 to 532. [2023-12-19 06:29:13,490 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 532 states, 318 states have (on average 1.248427672955975) internal successors, (397), 319 states have internal predecessors, (397), 185 states have call successors, (185), 28 states have call predecessors, (185), 28 states have return successors, (185), 184 states have call predecessors, (185), 185 states have call successors, (185) [2023-12-19 06:29:13,492 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 532 states to 532 states and 767 transitions. [2023-12-19 06:29:13,492 INFO L78 Accepts]: Start accepts. Automaton has 532 states and 767 transitions. Word has length 442 [2023-12-19 06:29:13,493 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-19 06:29:13,493 INFO L495 AbstractCegarLoop]: Abstraction has 532 states and 767 transitions. [2023-12-19 06:29:13,493 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 38 states, 38 states have (on average 4.0) internal successors, (152), 38 states have internal predecessors, (152), 9 states have call successors, (119), 6 states have call predecessors, (119), 11 states have return successors, (119), 8 states have call predecessors, (119), 9 states have call successors, (119) [2023-12-19 06:29:13,493 INFO L276 IsEmpty]: Start isEmpty. Operand 532 states and 767 transitions. [2023-12-19 06:29:13,495 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 443 [2023-12-19 06:29:13,495 INFO L187 NwaCegarLoop]: Found error trace [2023-12-19 06:29:13,495 INFO L195 NwaCegarLoop]: trace histogram [73, 73, 73, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 06:29:13,505 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (11)] Forceful destruction successful, exit code 0 [2023-12-19 06:29:13,702 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 11 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable9 [2023-12-19 06:29:13,702 INFO L420 AbstractCegarLoop]: === Iteration 11 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-19 06:29:13,703 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-19 06:29:13,703 INFO L85 PathProgramCache]: Analyzing trace with hash 1100016264, now seen corresponding path program 1 times [2023-12-19 06:29:13,703 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-12-19 06:29:13,703 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2085166735] [2023-12-19 06:29:13,703 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-19 06:29:13,704 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-19 06:29:13,771 ERROR L246 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2023-12-19 06:29:13,772 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [641490615] [2023-12-19 06:29:13,772 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-19 06:29:13,772 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-12-19 06:29:13,772 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-12-19 06:29:13,774 INFO L229 MonitoredProcess]: Starting monitored process 12 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-12-19 06:29:13,776 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (12)] Waiting until timeout for monitored process [2023-12-19 06:29:14,109 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 06:29:14,113 INFO L262 TraceCheckSpWp]: Trace formula consists of 964 conjuncts, 30 conjunts are in the unsatisfiable core [2023-12-19 06:29:14,118 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-19 06:29:15,456 INFO L134 CoverageAnalysis]: Checked inductivity of 10512 backedges. 7285 proven. 462 refuted. 0 times theorem prover too weak. 2765 trivial. 0 not checked. [2023-12-19 06:29:15,457 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-12-19 06:29:17,133 INFO L134 CoverageAnalysis]: Checked inductivity of 10512 backedges. 489 proven. 357 refuted. 0 times theorem prover too weak. 9666 trivial. 0 not checked. [2023-12-19 06:29:17,133 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-12-19 06:29:17,133 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2085166735] [2023-12-19 06:29:17,133 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2023-12-19 06:29:17,134 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [641490615] [2023-12-19 06:29:17,134 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [641490615] provided 0 perfect and 2 imperfect interpolant sequences [2023-12-19 06:29:17,134 INFO L185 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2023-12-19 06:29:17,134 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [21, 18] total 37 [2023-12-19 06:29:17,134 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1317779125] [2023-12-19 06:29:17,134 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2023-12-19 06:29:17,135 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 37 states [2023-12-19 06:29:17,135 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-12-19 06:29:17,135 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 37 interpolants. [2023-12-19 06:29:17,136 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=294, Invalid=1038, Unknown=0, NotChecked=0, Total=1332 [2023-12-19 06:29:17,136 INFO L87 Difference]: Start difference. First operand 532 states and 767 transitions. Second operand has 37 states, 36 states have (on average 4.361111111111111) internal successors, (157), 35 states have internal predecessors, (157), 10 states have call successors, (118), 6 states have call predecessors, (118), 13 states have return successors, (119), 10 states have call predecessors, (119), 10 states have call successors, (119) [2023-12-19 06:29:20,258 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-19 06:29:20,258 INFO L93 Difference]: Finished difference Result 1352 states and 1893 transitions. [2023-12-19 06:29:20,258 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 53 states. [2023-12-19 06:29:20,259 INFO L78 Accepts]: Start accepts. Automaton has has 37 states, 36 states have (on average 4.361111111111111) internal successors, (157), 35 states have internal predecessors, (157), 10 states have call successors, (118), 6 states have call predecessors, (118), 13 states have return successors, (119), 10 states have call predecessors, (119), 10 states have call successors, (119) Word has length 442 [2023-12-19 06:29:20,259 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-19 06:29:20,262 INFO L225 Difference]: With dead ends: 1352 [2023-12-19 06:29:20,262 INFO L226 Difference]: Without dead ends: 902 [2023-12-19 06:29:20,265 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 930 GetRequests, 852 SyntacticMatches, 0 SemanticMatches, 78 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1770 ImplicationChecksByTransitivity, 1.6s TimeCoverageRelationStatistics Valid=1629, Invalid=4691, Unknown=0, NotChecked=0, Total=6320 [2023-12-19 06:29:20,265 INFO L413 NwaCegarLoop]: 229 mSDtfsCounter, 1103 mSDsluCounter, 1121 mSDsCounter, 0 mSdLazyCounter, 2227 mSolverCounterSat, 1344 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1130 SdHoareTripleChecker+Valid, 1350 SdHoareTripleChecker+Invalid, 3571 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1344 IncrementalHoareTripleChecker+Valid, 2227 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.8s IncrementalHoareTripleChecker+Time [2023-12-19 06:29:20,266 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1130 Valid, 1350 Invalid, 3571 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1344 Valid, 2227 Invalid, 0 Unknown, 0 Unchecked, 1.8s Time] [2023-12-19 06:29:20,266 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 902 states. [2023-12-19 06:29:20,385 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 902 to 538. [2023-12-19 06:29:20,386 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 538 states, 322 states have (on average 1.2391304347826086) internal successors, (399), 323 states have internal predecessors, (399), 185 states have call successors, (185), 30 states have call predecessors, (185), 30 states have return successors, (185), 184 states have call predecessors, (185), 185 states have call successors, (185) [2023-12-19 06:29:20,387 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 538 states to 538 states and 769 transitions. [2023-12-19 06:29:20,387 INFO L78 Accepts]: Start accepts. Automaton has 538 states and 769 transitions. Word has length 442 [2023-12-19 06:29:20,388 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-19 06:29:20,388 INFO L495 AbstractCegarLoop]: Abstraction has 538 states and 769 transitions. [2023-12-19 06:29:20,388 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 37 states, 36 states have (on average 4.361111111111111) internal successors, (157), 35 states have internal predecessors, (157), 10 states have call successors, (118), 6 states have call predecessors, (118), 13 states have return successors, (119), 10 states have call predecessors, (119), 10 states have call successors, (119) [2023-12-19 06:29:20,388 INFO L276 IsEmpty]: Start isEmpty. Operand 538 states and 769 transitions. [2023-12-19 06:29:20,390 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 443 [2023-12-19 06:29:20,390 INFO L187 NwaCegarLoop]: Found error trace [2023-12-19 06:29:20,390 INFO L195 NwaCegarLoop]: trace histogram [73, 73, 73, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 06:29:20,402 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (12)] Forceful destruction successful, exit code 0 [2023-12-19 06:29:20,597 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 12 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable10 [2023-12-19 06:29:20,598 INFO L420 AbstractCegarLoop]: === Iteration 12 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-19 06:29:20,598 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-19 06:29:20,598 INFO L85 PathProgramCache]: Analyzing trace with hash -1913279542, now seen corresponding path program 1 times [2023-12-19 06:29:20,598 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-12-19 06:29:20,599 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1701728903] [2023-12-19 06:29:20,599 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-19 06:29:20,599 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-19 06:29:20,629 ERROR L246 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2023-12-19 06:29:20,629 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1542852564] [2023-12-19 06:29:20,629 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-19 06:29:20,629 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-12-19 06:29:20,629 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-12-19 06:29:20,630 INFO L229 MonitoredProcess]: Starting monitored process 13 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-12-19 06:29:20,653 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (13)] Waiting until timeout for monitored process [2023-12-19 06:29:20,888 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 06:29:20,893 INFO L262 TraceCheckSpWp]: Trace formula consists of 964 conjuncts, 8 conjunts are in the unsatisfiable core [2023-12-19 06:29:20,900 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-19 06:29:21,536 INFO L134 CoverageAnalysis]: Checked inductivity of 10512 backedges. 4678 proven. 69 refuted. 0 times theorem prover too weak. 5765 trivial. 0 not checked. [2023-12-19 06:29:21,536 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-12-19 06:29:21,875 INFO L134 CoverageAnalysis]: Checked inductivity of 10512 backedges. 147 proven. 69 refuted. 0 times theorem prover too weak. 10296 trivial. 0 not checked. [2023-12-19 06:29:21,875 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-12-19 06:29:21,875 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1701728903] [2023-12-19 06:29:21,875 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2023-12-19 06:29:21,875 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1542852564] [2023-12-19 06:29:21,875 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1542852564] provided 0 perfect and 2 imperfect interpolant sequences [2023-12-19 06:29:21,875 INFO L185 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2023-12-19 06:29:21,875 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [6, 7] total 12 [2023-12-19 06:29:21,876 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1776661815] [2023-12-19 06:29:21,876 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2023-12-19 06:29:21,877 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 12 states [2023-12-19 06:29:21,877 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-12-19 06:29:21,878 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2023-12-19 06:29:21,878 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=40, Invalid=92, Unknown=0, NotChecked=0, Total=132 [2023-12-19 06:29:21,878 INFO L87 Difference]: Start difference. First operand 538 states and 769 transitions. Second operand has 12 states, 12 states have (on average 12.666666666666666) internal successors, (152), 12 states have internal predecessors, (152), 4 states have call successors, (146), 3 states have call predecessors, (146), 5 states have return successors, (146), 4 states have call predecessors, (146), 4 states have call successors, (146) [2023-12-19 06:29:23,007 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-19 06:29:23,008 INFO L93 Difference]: Finished difference Result 1716 states and 2461 transitions. [2023-12-19 06:29:23,008 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2023-12-19 06:29:23,008 INFO L78 Accepts]: Start accepts. Automaton has has 12 states, 12 states have (on average 12.666666666666666) internal successors, (152), 12 states have internal predecessors, (152), 4 states have call successors, (146), 3 states have call predecessors, (146), 5 states have return successors, (146), 4 states have call predecessors, (146), 4 states have call successors, (146) Word has length 442 [2023-12-19 06:29:23,009 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-19 06:29:23,013 INFO L225 Difference]: With dead ends: 1716 [2023-12-19 06:29:23,013 INFO L226 Difference]: Without dead ends: 1260 [2023-12-19 06:29:23,014 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 887 GetRequests, 872 SyntacticMatches, 0 SemanticMatches, 15 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 38 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=89, Invalid=183, Unknown=0, NotChecked=0, Total=272 [2023-12-19 06:29:23,014 INFO L413 NwaCegarLoop]: 215 mSDtfsCounter, 491 mSDsluCounter, 700 mSDsCounter, 0 mSdLazyCounter, 1191 mSolverCounterSat, 241 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 612 SdHoareTripleChecker+Valid, 915 SdHoareTripleChecker+Invalid, 1432 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 241 IncrementalHoareTripleChecker+Valid, 1191 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.8s IncrementalHoareTripleChecker+Time [2023-12-19 06:29:23,014 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [612 Valid, 915 Invalid, 1432 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [241 Valid, 1191 Invalid, 0 Unknown, 0 Unchecked, 0.8s Time] [2023-12-19 06:29:23,015 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1260 states. [2023-12-19 06:29:23,193 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1260 to 956. [2023-12-19 06:29:23,195 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 956 states, 568 states have (on average 1.221830985915493) internal successors, (694), 569 states have internal predecessors, (694), 331 states have call successors, (331), 56 states have call predecessors, (331), 56 states have return successors, (331), 330 states have call predecessors, (331), 331 states have call successors, (331) [2023-12-19 06:29:23,197 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 956 states to 956 states and 1356 transitions. [2023-12-19 06:29:23,197 INFO L78 Accepts]: Start accepts. Automaton has 956 states and 1356 transitions. Word has length 442 [2023-12-19 06:29:23,197 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-19 06:29:23,198 INFO L495 AbstractCegarLoop]: Abstraction has 956 states and 1356 transitions. [2023-12-19 06:29:23,198 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 12 states, 12 states have (on average 12.666666666666666) internal successors, (152), 12 states have internal predecessors, (152), 4 states have call successors, (146), 3 states have call predecessors, (146), 5 states have return successors, (146), 4 states have call predecessors, (146), 4 states have call successors, (146) [2023-12-19 06:29:23,198 INFO L276 IsEmpty]: Start isEmpty. Operand 956 states and 1356 transitions. [2023-12-19 06:29:23,200 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 444 [2023-12-19 06:29:23,200 INFO L187 NwaCegarLoop]: Found error trace [2023-12-19 06:29:23,200 INFO L195 NwaCegarLoop]: trace histogram [73, 73, 73, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 06:29:23,210 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (13)] Forceful destruction successful, exit code 0 [2023-12-19 06:29:23,408 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 13 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable11 [2023-12-19 06:29:23,408 INFO L420 AbstractCegarLoop]: === Iteration 13 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-19 06:29:23,409 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-19 06:29:23,409 INFO L85 PathProgramCache]: Analyzing trace with hash 1405708281, now seen corresponding path program 1 times [2023-12-19 06:29:23,409 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-12-19 06:29:23,409 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1523881188] [2023-12-19 06:29:23,409 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-19 06:29:23,409 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-19 06:29:23,436 ERROR L246 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2023-12-19 06:29:23,436 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [364727114] [2023-12-19 06:29:23,437 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-19 06:29:23,437 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-12-19 06:29:23,437 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-12-19 06:29:23,438 INFO L229 MonitoredProcess]: Starting monitored process 14 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-12-19 06:29:23,461 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (14)] Waiting until timeout for monitored process [2023-12-19 06:29:23,833 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 06:29:23,837 INFO L262 TraceCheckSpWp]: Trace formula consists of 964 conjuncts, 33 conjunts are in the unsatisfiable core [2023-12-19 06:29:23,845 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-19 06:29:50,927 WARN L293 SmtUtils]: Spent 8.02s on a formula simplification that was a NOOP. DAG size: 8 (called from [L 731] de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher.simplify) [2023-12-19 06:30:02,733 WARN L293 SmtUtils]: Spent 5.05s on a formula simplification that was a NOOP. DAG size: 8 (called from [L 731] de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher.simplify) [2023-12-19 06:30:15,793 WARN L293 SmtUtils]: Spent 12.98s on a formula simplification that was a NOOP. DAG size: 45 (called from [L 391] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate) [2023-12-19 06:30:15,843 INFO L134 CoverageAnalysis]: Checked inductivity of 10512 backedges. 7698 proven. 297 refuted. 0 times theorem prover too weak. 2517 trivial. 0 not checked. [2023-12-19 06:30:15,844 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-12-19 06:30:38,379 WARN L293 SmtUtils]: Spent 6.61s on a formula simplification. DAG size of input: 70 DAG size of output: 67 (called from [L 391] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate) [2023-12-19 06:31:10,265 WARN L293 SmtUtils]: Spent 8.01s on a formula simplification that was a NOOP. DAG size: 7 (called from [L 731] de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher.simplify) [2023-12-19 06:31:15,400 WARN L293 SmtUtils]: Spent 5.13s on a formula simplification that was a NOOP. DAG size: 7 (called from [L 731] de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher.simplify) [2023-12-19 06:31:23,173 WARN L293 SmtUtils]: Spent 7.77s on a formula simplification that was a NOOP. DAG size: 3 (called from [L 731] de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher.simplify) [2023-12-19 06:31:28,977 WARN L293 SmtUtils]: Spent 5.80s on a formula simplification that was a NOOP. DAG size: 5 (called from [L 731] de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher.simplify) [2023-12-19 06:31:37,637 WARN L293 SmtUtils]: Spent 8.02s on a formula simplification that was a NOOP. DAG size: 3 (called from [L 731] de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher.simplify) [2023-12-19 06:31:42,768 WARN L293 SmtUtils]: Spent 5.13s on a formula simplification that was a NOOP. DAG size: 8 (called from [L 731] de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher.simplify) [2023-12-19 06:31:50,787 WARN L293 SmtUtils]: Spent 8.02s on a formula simplification that was a NOOP. DAG size: 8 (called from [L 731] de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher.simplify) [2023-12-19 06:31:58,951 WARN L876 $PredicateComparison]: unable to prove that (let ((.cse2 (mod c_~var_1_30~0 4294967296))) (or (let ((.cse7 (+ c_~var_1_29~0 1))) (let ((.cse0 (+ c_~var_1_30~0 c_~var_1_29~0)) (.cse3 (< c_~var_1_30~0 .cse7)) (.cse4 (let ((.cse9 (mod (* c_~var_1_30~0 c_~var_1_29~0) 4294967296))) (and (not (= .cse9 .cse2)) (not (= .cse9 0))))) (.cse5 (< c_~var_1_29~0 c_~var_1_30~0))) (and (or (< .cse0 1) (and (or (let ((.cse1 (mod (* c_~var_1_30~0 c_~var_1_30~0) 4294967296))) (and (not (= .cse1 .cse2)) (not (= .cse1 0)))) .cse3 (< c_~var_1_43~0 c_~var_1_30~0)) (or (< c_~var_1_43~0 c_~var_1_29~0) .cse4 .cse5))) (or (< 0 .cse0) (let ((.cse6 (let ((.cse8 (mod (* c_~var_1_30~0 c_~var_1_29~0 4294967295) 4294967296))) (and (not (= .cse2 .cse8)) (not (= .cse8 0)))))) (and (or .cse3 (< (+ c_~var_1_29~0 c_~var_1_43~0) 0) .cse6) (or (and (or (< 0 .cse7) .cse6) (or .cse4 (< c_~var_1_29~0 0))) .cse5))))))) (< .cse2 (+ (mod (+ c_~var_1_31~0 8) 4294967296) 1)) (< (+ c_~var_1_30~0 c_~var_1_43~0) (+ (mod c_~var_1_50~0 65536) 1)) (< (+ c_~var_1_31~0 c_~var_1_30~0) c_~var_1_29~0))) is different from true [2023-12-19 06:32:55,223 WARN L293 SmtUtils]: Spent 6.97s on a formula simplification that was a NOOP. DAG size: 7 (called from [L 731] de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher.simplify) [2023-12-19 06:33:03,172 WARN L293 SmtUtils]: Spent 7.95s on a formula simplification that was a NOOP. DAG size: 3 (called from [L 731] de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher.simplify) [2023-12-19 06:33:47,575 WARN L293 SmtUtils]: Spent 8.01s on a formula simplification that was a NOOP. DAG size: 5 (called from [L 731] de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher.simplify) [2023-12-19 06:34:17,591 WARN L293 SmtUtils]: Spent 8.01s on a formula simplification that was a NOOP. DAG size: 5 (called from [L 731] de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher.simplify) [2023-12-19 06:34:47,807 WARN L293 SmtUtils]: Spent 8.22s on a formula simplification that was a NOOP. DAG size: 7 (called from [L 731] de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher.simplify) [2023-12-19 06:34:59,776 WARN L293 SmtUtils]: Spent 8.01s on a formula simplification that was a NOOP. DAG size: 3 (called from [L 731] de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher.simplify) [2023-12-19 06:35:20,856 WARN L293 SmtUtils]: Spent 8.03s on a formula simplification that was a NOOP. DAG size: 9 (called from [L 731] de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher.simplify) [2023-12-19 06:35:30,181 WARN L293 SmtUtils]: Spent 5.43s on a formula simplification that was a NOOP. DAG size: 5 (called from [L 731] de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher.simplify) [2023-12-19 06:35:35,239 WARN L293 SmtUtils]: Spent 5.06s on a formula simplification that was a NOOP. DAG size: 5 (called from [L 731] de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher.simplify) [2023-12-19 06:35:55,649 WARN L293 SmtUtils]: Spent 6.64s on a formula simplification that was a NOOP. DAG size: 3 (called from [L 731] de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher.simplify) [2023-12-19 06:36:06,369 WARN L293 SmtUtils]: Spent 5.68s on a formula simplification that was a NOOP. DAG size: 5 (called from [L 731] de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher.simplify) [2023-12-19 06:36:17,408 WARN L293 SmtUtils]: Spent 6.85s on a formula simplification that was a NOOP. DAG size: 5 (called from [L 731] de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher.simplify) [2023-12-19 06:36:40,183 WARN L293 SmtUtils]: Spent 7.61s on a formula simplification that was a NOOP. DAG size: 9 (called from [L 731] de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher.simplify) [2023-12-19 06:36:54,966 WARN L293 SmtUtils]: Spent 8.01s on a formula simplification that was a NOOP. DAG size: 3 (called from [L 731] de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher.simplify) [2023-12-19 06:37:22,141 WARN L293 SmtUtils]: Spent 5.78s on a formula simplification that was a NOOP. DAG size: 3 (called from [L 731] de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher.simplify) [2023-12-19 06:37:36,859 WARN L293 SmtUtils]: Spent 6.24s on a formula simplification that was a NOOP. DAG size: 5 (called from [L 731] de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher.simplify) [2023-12-19 06:38:03,429 WARN L293 SmtUtils]: Spent 7.22s on a formula simplification that was a NOOP. DAG size: 5 (called from [L 731] de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher.simplify) [2023-12-19 06:38:11,445 WARN L293 SmtUtils]: Spent 8.01s on a formula simplification that was a NOOP. DAG size: 9 (called from [L 731] de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher.simplify) [2023-12-19 06:38:33,759 WARN L293 SmtUtils]: Spent 5.26s on a formula simplification that was a NOOP. DAG size: 5 (called from [L 731] de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher.simplify) [2023-12-19 06:38:41,938 WARN L293 SmtUtils]: Spent 8.01s on a formula simplification that was a NOOP. DAG size: 7 (called from [L 731] de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher.simplify) [2023-12-19 06:39:06,206 WARN L293 SmtUtils]: Spent 6.00s on a formula simplification that was a NOOP. DAG size: 5 (called from [L 731] de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher.simplify) [2023-12-19 06:39:44,965 WARN L293 SmtUtils]: Spent 7.52s on a formula simplification that was a NOOP. DAG size: 3 (called from [L 731] de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher.simplify) [2023-12-19 06:40:01,190 WARN L293 SmtUtils]: Spent 8.02s on a formula simplification that was a NOOP. DAG size: 9 (called from [L 731] de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher.simplify) [2023-12-19 06:40:47,517 WARN L293 SmtUtils]: Spent 8.01s on a formula simplification that was a NOOP. DAG size: 5 (called from [L 731] de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher.simplify) [2023-12-19 06:41:07,915 WARN L293 SmtUtils]: Spent 6.03s on a formula simplification that was a NOOP. DAG size: 5 (called from [L 731] de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher.simplify) [2023-12-19 06:41:23,622 WARN L293 SmtUtils]: Spent 8.02s on a formula simplification that was a NOOP. DAG size: 7 (called from [L 731] de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher.simplify) [2023-12-19 06:42:10,273 WARN L293 SmtUtils]: Spent 5.77s on a formula simplification that was a NOOP. DAG size: 7 (called from [L 731] de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher.simplify) [2023-12-19 06:42:54,388 WARN L293 SmtUtils]: Spent 5.29s on a formula simplification that was a NOOP. DAG size: 3 (called from [L 731] de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher.simplify) Received shutdown request... [2023-12-19 06:42:59,689 WARN L340 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (14)] Timeout while monitored process is still running, waiting 1000 ms for graceful end [2023-12-19 06:42:59,689 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 06:43:00,707 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (14)] Forceful destruction successful, exit code 0 [2023-12-19 06:43:00,892 WARN L435 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (1)] Forcibly destroying the process [2023-12-19 06:43:00,922 INFO L805 garLoopResultBuilder]: Registering result TIMEOUT for location ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION (0 of 1 remaining) [2023-12-19 06:43:00,922 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable12 [2023-12-19 06:43:00,923 WARN L619 AbstractCegarLoop]: Verification canceled: while NwaCegarLoop was analyzing trace of length 444 with TraceHistMax 73,while TraceCheckSpWp was constructing backward predicates,while executing Executor. [2023-12-19 06:43:00,926 INFO L445 BasicCegarLoop]: Path program histogram: [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-19 06:43:00,927 INFO L179 ceAbstractionStarter]: Computing trace abstraction results [2023-12-19 06:43:00,942 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 19.12 06:43:00 BoogieIcfgContainer [2023-12-19 06:43:00,942 INFO L131 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2023-12-19 06:43:00,944 INFO L158 Benchmark]: Toolchain (without parser) took 872065.73ms. Allocated memory was 168.8MB in the beginning and 911.2MB in the end (delta: 742.4MB). Free memory was 104.5MB in the beginning and 528.4MB in the end (delta: -423.9MB). Peak memory consumption was 320.2MB. Max. memory is 8.0GB. [2023-12-19 06:43:00,944 INFO L158 Benchmark]: CDTParser took 0.48ms. Allocated memory is still 168.8MB. Free memory is still 118.7MB. There was no memory consumed. Max. memory is 8.0GB. [2023-12-19 06:43:00,944 INFO L158 Benchmark]: CACSL2BoogieTranslator took 365.95ms. Allocated memory is still 168.8MB. Free memory was 104.5MB in the beginning and 84.2MB in the end (delta: 20.3MB). Peak memory consumption was 19.9MB. Max. memory is 8.0GB. [2023-12-19 06:43:00,945 INFO L158 Benchmark]: Boogie Procedure Inliner took 70.58ms. Allocated memory is still 168.8MB. Free memory was 83.8MB in the beginning and 77.2MB in the end (delta: 6.6MB). Peak memory consumption was 6.3MB. Max. memory is 8.0GB. [2023-12-19 06:43:00,947 INFO L158 Benchmark]: Boogie Preprocessor took 127.17ms. Allocated memory was 168.8MB in the beginning and 211.8MB in the end (delta: 43.0MB). Free memory was 77.2MB in the beginning and 174.7MB in the end (delta: -97.5MB). Peak memory consumption was 27.4MB. Max. memory is 8.0GB. [2023-12-19 06:43:00,947 INFO L158 Benchmark]: RCFGBuilder took 755.57ms. Allocated memory is still 211.8MB. Free memory was 174.7MB in the beginning and 131.3MB in the end (delta: 43.5MB). Peak memory consumption was 43.0MB. Max. memory is 8.0GB. [2023-12-19 06:43:00,947 INFO L158 Benchmark]: TraceAbstraction took 870740.83ms. Allocated memory was 211.8MB in the beginning and 911.2MB in the end (delta: 699.4MB). Free memory was 130.8MB in the beginning and 528.4MB in the end (delta: -397.6MB). Peak memory consumption was 302.3MB. Max. memory is 8.0GB. [2023-12-19 06:43:00,948 INFO L338 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks [2023-12-19 06:43:00,963 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (1)] Forceful destruction successful, exit code 137 Benchmark results are: * CDTParser took 0.48ms. Allocated memory is still 168.8MB. Free memory is still 118.7MB. There was no memory consumed. Max. memory is 8.0GB. * CACSL2BoogieTranslator took 365.95ms. Allocated memory is still 168.8MB. Free memory was 104.5MB in the beginning and 84.2MB in the end (delta: 20.3MB). Peak memory consumption was 19.9MB. Max. memory is 8.0GB. * Boogie Procedure Inliner took 70.58ms. Allocated memory is still 168.8MB. Free memory was 83.8MB in the beginning and 77.2MB in the end (delta: 6.6MB). Peak memory consumption was 6.3MB. Max. memory is 8.0GB. * Boogie Preprocessor took 127.17ms. Allocated memory was 168.8MB in the beginning and 211.8MB in the end (delta: 43.0MB). Free memory was 77.2MB in the beginning and 174.7MB in the end (delta: -97.5MB). Peak memory consumption was 27.4MB. Max. memory is 8.0GB. * RCFGBuilder took 755.57ms. Allocated memory is still 211.8MB. Free memory was 174.7MB in the beginning and 131.3MB in the end (delta: 43.5MB). Peak memory consumption was 43.0MB. Max. memory is 8.0GB. * TraceAbstraction took 870740.83ms. Allocated memory was 211.8MB in the beginning and 911.2MB in the end (delta: 699.4MB). Free memory was 130.8MB in the beginning and 528.4MB in the end (delta: -397.6MB). Peak memory consumption was 302.3MB. 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 444 with TraceHistMax 73,while TraceCheckSpWp was constructing backward predicates,while executing Executor. - StatisticsResult: Ultimate Automizer benchmark data CFG has 2 procedures, 167 locations, 1 error locations. Started 1 CEGAR loops. OverallTime: 870.7s, OverallIterations: 13, TraceHistogramMax: 73, PathProgramHistogramMax: 1, EmptinessCheckTime: 0.1s, AutomataDifference: 29.4s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 7586 SdHoareTripleChecker+Valid, 12.3s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 7278 mSDsluCounter, 9825 SdHoareTripleChecker+Invalid, 10.3s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 6886 mSDsCounter, 7244 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 12004 IncrementalHoareTripleChecker+Invalid, 19248 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 7244 mSolverCounterUnsat, 2939 mSDtfsCounter, 12004 mSolverCounterSat, 0.1s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown, PredicateUnifierStatistics: 0 DeclaredPredicates, 8679 GetRequests, 8249 SyntacticMatches, 2 SemanticMatches, 428 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 22220 ImplicationChecksByTransitivity, 16.6s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=994occurred in iteration=9, InterpolantAutomatonStates: 353, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: 0.9s AutomataMinimizationTime, 12 MinimizatonAttempts, 5383 StatesRemovedByMinimization, 10 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.6s SsaConstructionTime, 1.8s SatisfiabilityAnalysisTime, 16.1s InterpolantComputationTime, 5720 NumberOfCodeBlocks, 5720 NumberOfCodeBlocksAsserted, 13 NumberOfCheckSat, 8350 ConstructedInterpolants, 0 QuantifiedInterpolants, 39308 SizeOfPredicates, 57 NumberOfNonLiveVariables, 11547 ConjunctsInSsa, 131 ConjunctsInUnsatCore, 19 InterpolantComputations, 5 PerfectInterpolantSequences, 196977/199728 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