/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 false -tc ../../../trunk/examples/toolchains/AutomizerCInline.xml -i ../../../trunk/examples/svcomp/hardness-nfm22/hardness_fillercode_fillercodesize_ps-cn-250_file-73.i -------------------------------------------------------------------------------- This is Ultimate 0.2.4-tmp.fs.bitabs-eval-d9c3e40-m [2023-12-16 02:52:30,267 INFO L188 SettingsManager]: Resetting all preferences to default values... [2023-12-16 02:52:30,352 INFO L114 SettingsManager]: Loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/settings/default/automizer/svcomp-Reach-32bit-Automizer_Default.epf [2023-12-16 02:52:30,356 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2023-12-16 02:52:30,357 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2023-12-16 02:52:30,383 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2023-12-16 02:52:30,384 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2023-12-16 02:52:30,384 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2023-12-16 02:52:30,385 INFO L151 SettingsManager]: Preferences of Boogie Preprocessor differ from their defaults: [2023-12-16 02:52:30,388 INFO L153 SettingsManager]: * Use memory slicer=true [2023-12-16 02:52:30,388 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2023-12-16 02:52:30,389 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2023-12-16 02:52:30,390 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2023-12-16 02:52:30,391 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2023-12-16 02:52:30,391 INFO L153 SettingsManager]: * Use SBE=true [2023-12-16 02:52:30,391 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2023-12-16 02:52:30,391 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2023-12-16 02:52:30,392 INFO L153 SettingsManager]: * sizeof long=4 [2023-12-16 02:52:30,392 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2023-12-16 02:52:30,392 INFO L153 SettingsManager]: * sizeof POINTER=4 [2023-12-16 02:52:30,392 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2023-12-16 02:52:30,393 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2023-12-16 02:52:30,393 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2023-12-16 02:52:30,393 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2023-12-16 02:52:30,393 INFO L153 SettingsManager]: * Allow undefined functions=false [2023-12-16 02:52:30,394 INFO L153 SettingsManager]: * sizeof long double=12 [2023-12-16 02:52:30,394 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2023-12-16 02:52:30,394 INFO L153 SettingsManager]: * Use constant arrays=true [2023-12-16 02:52:30,395 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2023-12-16 02:52:30,395 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2023-12-16 02:52:30,396 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2023-12-16 02:52:30,396 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2023-12-16 02:52:30,396 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2023-12-16 02:52:30,396 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2023-12-16 02:52:30,397 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2023-12-16 02:52:30,397 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2023-12-16 02:52:30,397 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2023-12-16 02:52:30,397 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2023-12-16 02:52:30,397 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2023-12-16 02:52:30,398 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2023-12-16 02:52:30,398 INFO L153 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2023-12-16 02:52:30,398 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2023-12-16 02:52:30,398 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2023-12-16 02:52:30,398 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Use bitabs translation -> false [2023-12-16 02:52:30,627 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2023-12-16 02:52:30,653 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2023-12-16 02:52:30,655 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2023-12-16 02:52:30,656 INFO L270 PluginConnector]: Initializing CDTParser... [2023-12-16 02:52:30,656 INFO L274 PluginConnector]: CDTParser initialized [2023-12-16 02:52:30,657 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/hardness-nfm22/hardness_fillercode_fillercodesize_ps-cn-250_file-73.i [2023-12-16 02:52:31,786 INFO L533 CDTParser]: Created temporary CDT project at NULL [2023-12-16 02:52:32,380 INFO L384 CDTParser]: Found 1 translation units. [2023-12-16 02:52:32,380 INFO L180 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/hardness-nfm22/hardness_fillercode_fillercodesize_ps-cn-250_file-73.i [2023-12-16 02:52:32,392 INFO L427 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/0a8e0bd84/62431e5bdfc14930a9f4fde1dd00efbb/FLAG136f3c2bb [2023-12-16 02:52:32,406 INFO L435 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/0a8e0bd84/62431e5bdfc14930a9f4fde1dd00efbb [2023-12-16 02:52:32,408 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2023-12-16 02:52:32,409 INFO L133 ToolchainWalker]: Walking toolchain with 5 elements. [2023-12-16 02:52:32,409 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2023-12-16 02:52:32,410 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2023-12-16 02:52:32,415 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2023-12-16 02:52:32,416 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 16.12 02:52:32" (1/1) ... [2023-12-16 02:52:32,417 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@ec8c167 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.12 02:52:32, skipping insertion in model container [2023-12-16 02:52:32,417 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 16.12 02:52:32" (1/1) ... [2023-12-16 02:52:32,469 INFO L177 MainTranslator]: Built tables and reachable declarations [2023-12-16 02:52:32,592 WARN L239 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/trunk/examples/svcomp/hardness-nfm22/hardness_fillercode_fillercodesize_ps-cn-250_file-73.i[916,929] [2023-12-16 02:52:32,698 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-12-16 02:52:32,713 INFO L202 MainTranslator]: Completed pre-run [2023-12-16 02:52:32,731 WARN L239 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/trunk/examples/svcomp/hardness-nfm22/hardness_fillercode_fillercodesize_ps-cn-250_file-73.i[916,929] [2023-12-16 02:52:32,784 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-12-16 02:52:32,803 INFO L206 MainTranslator]: Completed translation [2023-12-16 02:52:32,803 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.12 02:52:32 WrapperNode [2023-12-16 02:52:32,804 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2023-12-16 02:52:32,805 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2023-12-16 02:52:32,805 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2023-12-16 02:52:32,805 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2023-12-16 02:52:32,811 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.12 02:52:32" (1/1) ... [2023-12-16 02:52:32,827 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.12 02:52:32" (1/1) ... [2023-12-16 02:52:32,881 INFO L138 Inliner]: procedures = 26, calls = 82, calls flagged for inlining = 8, calls inlined = 8, statements flattened = 497 [2023-12-16 02:52:32,882 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2023-12-16 02:52:32,882 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2023-12-16 02:52:32,882 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2023-12-16 02:52:32,883 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2023-12-16 02:52:32,891 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.12 02:52:32" (1/1) ... [2023-12-16 02:52:32,891 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.12 02:52:32" (1/1) ... [2023-12-16 02:52:32,897 INFO L184 PluginConnector]: Executing the observer MemorySlicer from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.12 02:52:32" (1/1) ... [2023-12-16 02:52:32,917 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]. [2023-12-16 02:52:32,917 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.12 02:52:32" (1/1) ... [2023-12-16 02:52:32,918 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.12 02:52:32" (1/1) ... [2023-12-16 02:52:32,934 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.12 02:52:32" (1/1) ... [2023-12-16 02:52:32,941 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.12 02:52:32" (1/1) ... [2023-12-16 02:52:32,946 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.12 02:52:32" (1/1) ... [2023-12-16 02:52:32,953 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.12 02:52:32" (1/1) ... [2023-12-16 02:52:32,962 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2023-12-16 02:52:32,963 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2023-12-16 02:52:32,963 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2023-12-16 02:52:32,963 INFO L274 PluginConnector]: RCFGBuilder initialized [2023-12-16 02:52:32,968 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.12 02:52:32" (1/1) ... [2023-12-16 02:52:32,973 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2023-12-16 02:52:32,983 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-12-16 02:52:32,998 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) [2023-12-16 02:52:33,021 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 [2023-12-16 02:52:33,032 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2023-12-16 02:52:33,032 INFO L130 BoogieDeclarations]: Found specification of procedure assume_abort_if_not [2023-12-16 02:52:33,032 INFO L138 BoogieDeclarations]: Found implementation of procedure assume_abort_if_not [2023-12-16 02:52:33,033 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#0 [2023-12-16 02:52:33,033 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2023-12-16 02:52:33,033 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2023-12-16 02:52:33,177 INFO L241 CfgBuilder]: Building ICFG [2023-12-16 02:52:33,180 INFO L267 CfgBuilder]: Building CFG for each procedure with an implementation [2023-12-16 02:52:33,763 INFO L282 CfgBuilder]: Performing block encoding [2023-12-16 02:52:33,811 INFO L304 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2023-12-16 02:52:33,812 INFO L309 CfgBuilder]: Removed 1 assume(true) statements. [2023-12-16 02:52:33,812 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 16.12 02:52:33 BoogieIcfgContainer [2023-12-16 02:52:33,812 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2023-12-16 02:52:33,814 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2023-12-16 02:52:33,814 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2023-12-16 02:52:33,817 INFO L274 PluginConnector]: TraceAbstraction initialized [2023-12-16 02:52:33,817 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 16.12 02:52:32" (1/3) ... [2023-12-16 02:52:33,817 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@43c1d430 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 16.12 02:52:33, skipping insertion in model container [2023-12-16 02:52:33,818 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.12 02:52:32" (2/3) ... [2023-12-16 02:52:33,818 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@43c1d430 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 16.12 02:52:33, skipping insertion in model container [2023-12-16 02:52:33,818 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 16.12 02:52:33" (3/3) ... [2023-12-16 02:52:33,819 INFO L112 eAbstractionObserver]: Analyzing ICFG hardness_fillercode_fillercodesize_ps-cn-250_file-73.i [2023-12-16 02:52:33,838 INFO L204 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2023-12-16 02:52:33,838 INFO L163 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2023-12-16 02:52:33,904 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2023-12-16 02:52:33,911 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;@31066d5f, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2023-12-16 02:52:33,912 INFO L358 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2023-12-16 02:52:33,920 INFO L276 IsEmpty]: Start isEmpty. Operand has 197 states, 125 states have (on average 1.536) internal successors, (192), 126 states have internal predecessors, (192), 69 states have call successors, (69), 1 states have call predecessors, (69), 1 states have return successors, (69), 69 states have call predecessors, (69), 69 states have call successors, (69) [2023-12-16 02:52:33,963 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 440 [2023-12-16 02:52:33,963 INFO L187 NwaCegarLoop]: Found error trace [2023-12-16 02:52:33,964 INFO L195 NwaCegarLoop]: trace histogram [69, 69, 69, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-16 02:52:33,965 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-16 02:52:33,979 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-16 02:52:33,980 INFO L85 PathProgramCache]: Analyzing trace with hash 483742316, now seen corresponding path program 1 times [2023-12-16 02:52:33,990 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-12-16 02:52:33,991 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [13532482] [2023-12-16 02:52:33,991 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-16 02:52:33,992 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-16 02:52:34,203 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 02:52:34,321 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-12-16 02:52:34,321 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [13532482] [2023-12-16 02:52:34,322 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: Unsupported non-linear arithmetic [2023-12-16 02:52:34,322 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1575586467] [2023-12-16 02:52:34,322 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-16 02:52:34,322 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-12-16 02:52:34,323 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-12-16 02:52:34,325 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) [2023-12-16 02:52:34,336 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Waiting until timeout for monitored process [2023-12-16 02:52:34,657 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 02:52:34,663 INFO L262 TraceCheckSpWp]: Trace formula consists of 1026 conjuncts, 1 conjunts are in the unsatisfiable core [2023-12-16 02:52:34,678 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-16 02:52:34,769 INFO L134 CoverageAnalysis]: Checked inductivity of 9384 backedges. 136 proven. 0 refuted. 0 times theorem prover too weak. 9248 trivial. 0 not checked. [2023-12-16 02:52:34,770 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-12-16 02:52:34,770 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1575586467] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-16 02:52:34,771 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-16 02:52:34,771 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2023-12-16 02:52:34,772 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1440638010] [2023-12-16 02:52:34,773 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-16 02:52:34,777 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2023-12-16 02:52:34,777 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-12-16 02:52:34,800 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2023-12-16 02:52:34,801 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2023-12-16 02:52:34,803 INFO L87 Difference]: Start difference. First operand has 197 states, 125 states have (on average 1.536) internal successors, (192), 126 states have internal predecessors, (192), 69 states have call successors, (69), 1 states have call predecessors, (69), 1 states have return successors, (69), 69 states have call predecessors, (69), 69 states have call successors, (69) Second operand has 2 states, 2 states have (on average 49.5) internal successors, (99), 2 states have internal predecessors, (99), 2 states have call successors, (69), 2 states have call predecessors, (69), 1 states have return successors, (69), 1 states have call predecessors, (69), 2 states have call successors, (69) [2023-12-16 02:52:34,875 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-16 02:52:34,875 INFO L93 Difference]: Finished difference Result 391 states and 727 transitions. [2023-12-16 02:52:34,876 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2023-12-16 02:52:34,878 INFO L78 Accepts]: Start accepts. Automaton has has 2 states, 2 states have (on average 49.5) internal successors, (99), 2 states have internal predecessors, (99), 2 states have call successors, (69), 2 states have call predecessors, (69), 1 states have return successors, (69), 1 states have call predecessors, (69), 2 states have call successors, (69) Word has length 439 [2023-12-16 02:52:34,878 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-16 02:52:34,886 INFO L225 Difference]: With dead ends: 391 [2023-12-16 02:52:34,886 INFO L226 Difference]: Without dead ends: 195 [2023-12-16 02:52:34,891 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 438 GetRequests, 438 SyntacticMatches, 0 SemanticMatches, 0 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2023-12-16 02:52:34,893 INFO L413 NwaCegarLoop]: 322 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, 322 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 [2023-12-16 02:52:34,894 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 322 Invalid, 3 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 3 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2023-12-16 02:52:34,908 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 195 states. [2023-12-16 02:52:34,968 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 195 to 195. [2023-12-16 02:52:34,970 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 195 states, 124 states have (on average 1.5080645161290323) internal successors, (187), 124 states have internal predecessors, (187), 69 states have call successors, (69), 1 states have call predecessors, (69), 1 states have return successors, (69), 69 states have call predecessors, (69), 69 states have call successors, (69) [2023-12-16 02:52:34,978 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 195 states to 195 states and 325 transitions. [2023-12-16 02:52:34,979 INFO L78 Accepts]: Start accepts. Automaton has 195 states and 325 transitions. Word has length 439 [2023-12-16 02:52:34,981 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-16 02:52:34,981 INFO L495 AbstractCegarLoop]: Abstraction has 195 states and 325 transitions. [2023-12-16 02:52:34,982 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 2 states, 2 states have (on average 49.5) internal successors, (99), 2 states have internal predecessors, (99), 2 states have call successors, (69), 2 states have call predecessors, (69), 1 states have return successors, (69), 1 states have call predecessors, (69), 2 states have call successors, (69) [2023-12-16 02:52:34,982 INFO L276 IsEmpty]: Start isEmpty. Operand 195 states and 325 transitions. [2023-12-16 02:52:34,991 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 440 [2023-12-16 02:52:34,991 INFO L187 NwaCegarLoop]: Found error trace [2023-12-16 02:52:34,992 INFO L195 NwaCegarLoop]: trace histogram [69, 69, 69, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-16 02:52:35,001 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Ended with exit code 0 [2023-12-16 02:52:35,201 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 [2023-12-16 02:52:35,201 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-16 02:52:35,202 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-16 02:52:35,202 INFO L85 PathProgramCache]: Analyzing trace with hash 775189818, now seen corresponding path program 1 times [2023-12-16 02:52:35,202 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-12-16 02:52:35,202 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [321473046] [2023-12-16 02:52:35,202 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-16 02:52:35,203 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-16 02:52:35,324 ERROR L246 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2023-12-16 02:52:35,325 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1898489295] [2023-12-16 02:52:35,325 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-16 02:52:35,325 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-12-16 02:52:35,325 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-12-16 02:52:35,327 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) [2023-12-16 02:52:35,333 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Waiting until timeout for monitored process [2023-12-16 02:52:35,645 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 02:52:35,651 INFO L262 TraceCheckSpWp]: Trace formula consists of 1026 conjuncts, 2 conjunts are in the unsatisfiable core [2023-12-16 02:52:35,665 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-16 02:52:35,730 INFO L134 CoverageAnalysis]: Checked inductivity of 9384 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 9384 trivial. 0 not checked. [2023-12-16 02:52:35,731 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-12-16 02:52:35,731 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-12-16 02:52:35,731 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [321473046] [2023-12-16 02:52:35,731 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2023-12-16 02:52:35,731 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1898489295] [2023-12-16 02:52:35,731 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1898489295] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-16 02:52:35,731 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-16 02:52:35,732 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2023-12-16 02:52:35,732 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1352947476] [2023-12-16 02:52:35,732 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-16 02:52:35,734 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-12-16 02:52:35,734 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-12-16 02:52:35,735 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-12-16 02:52:35,735 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-12-16 02:52:35,736 INFO L87 Difference]: Start difference. First operand 195 states and 325 transitions. Second operand has 3 states, 3 states have (on average 32.333333333333336) internal successors, (97), 3 states have internal predecessors, (97), 1 states have call successors, (69), 1 states have call predecessors, (69), 1 states have return successors, (69), 1 states have call predecessors, (69), 1 states have call successors, (69) [2023-12-16 02:52:35,849 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-16 02:52:35,849 INFO L93 Difference]: Finished difference Result 516 states and 859 transitions. [2023-12-16 02:52:35,850 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-12-16 02:52:35,850 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 32.333333333333336) internal successors, (97), 3 states have internal predecessors, (97), 1 states have call successors, (69), 1 states have call predecessors, (69), 1 states have return successors, (69), 1 states have call predecessors, (69), 1 states have call successors, (69) Word has length 439 [2023-12-16 02:52:35,852 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-16 02:52:35,854 INFO L225 Difference]: With dead ends: 516 [2023-12-16 02:52:35,855 INFO L226 Difference]: Without dead ends: 322 [2023-12-16 02:52:35,856 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 438 GetRequests, 437 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-12-16 02:52:35,857 INFO L413 NwaCegarLoop]: 404 mSDtfsCounter, 211 mSDsluCounter, 289 mSDsCounter, 0 mSdLazyCounter, 25 mSolverCounterSat, 14 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 211 SdHoareTripleChecker+Valid, 693 SdHoareTripleChecker+Invalid, 39 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 14 IncrementalHoareTripleChecker+Valid, 25 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2023-12-16 02:52:35,857 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [211 Valid, 693 Invalid, 39 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [14 Valid, 25 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2023-12-16 02:52:35,858 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 322 states. [2023-12-16 02:52:35,909 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 322 to 319. [2023-12-16 02:52:35,910 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 319 states, 207 states have (on average 1.4879227053140096) internal successors, (308), 208 states have internal predecessors, (308), 109 states have call successors, (109), 2 states have call predecessors, (109), 2 states have return successors, (109), 108 states have call predecessors, (109), 109 states have call successors, (109) [2023-12-16 02:52:35,914 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 319 states to 319 states and 526 transitions. [2023-12-16 02:52:35,915 INFO L78 Accepts]: Start accepts. Automaton has 319 states and 526 transitions. Word has length 439 [2023-12-16 02:52:35,918 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-16 02:52:35,919 INFO L495 AbstractCegarLoop]: Abstraction has 319 states and 526 transitions. [2023-12-16 02:52:35,919 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 32.333333333333336) internal successors, (97), 3 states have internal predecessors, (97), 1 states have call successors, (69), 1 states have call predecessors, (69), 1 states have return successors, (69), 1 states have call predecessors, (69), 1 states have call successors, (69) [2023-12-16 02:52:35,919 INFO L276 IsEmpty]: Start isEmpty. Operand 319 states and 526 transitions. [2023-12-16 02:52:35,927 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 440 [2023-12-16 02:52:35,927 INFO L187 NwaCegarLoop]: Found error trace [2023-12-16 02:52:35,927 INFO L195 NwaCegarLoop]: trace histogram [69, 69, 69, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-16 02:52:35,939 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Forceful destruction successful, exit code 0 [2023-12-16 02:52:36,135 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 [2023-12-16 02:52:36,136 INFO L420 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-16 02:52:36,136 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-16 02:52:36,136 INFO L85 PathProgramCache]: Analyzing trace with hash -1811147202, now seen corresponding path program 1 times [2023-12-16 02:52:36,137 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-12-16 02:52:36,137 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1972789399] [2023-12-16 02:52:36,137 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-16 02:52:36,137 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-16 02:52:36,238 ERROR L246 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2023-12-16 02:52:36,239 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [846059480] [2023-12-16 02:52:36,240 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-16 02:52:36,241 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-12-16 02:52:36,241 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-12-16 02:52:36,245 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) [2023-12-16 02:52:36,252 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Waiting until timeout for monitored process [2023-12-16 02:52:36,521 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 02:52:36,526 INFO L262 TraceCheckSpWp]: Trace formula consists of 1026 conjuncts, 6 conjunts are in the unsatisfiable core [2023-12-16 02:52:36,534 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-16 02:52:36,785 INFO L134 CoverageAnalysis]: Checked inductivity of 9384 backedges. 4110 proven. 63 refuted. 0 times theorem prover too weak. 5211 trivial. 0 not checked. [2023-12-16 02:52:36,785 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-12-16 02:52:37,072 INFO L134 CoverageAnalysis]: Checked inductivity of 9384 backedges. 141 proven. 63 refuted. 0 times theorem prover too weak. 9180 trivial. 0 not checked. [2023-12-16 02:52:37,072 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-12-16 02:52:37,073 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1972789399] [2023-12-16 02:52:37,073 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2023-12-16 02:52:37,073 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [846059480] [2023-12-16 02:52:37,073 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [846059480] provided 0 perfect and 2 imperfect interpolant sequences [2023-12-16 02:52:37,073 INFO L185 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2023-12-16 02:52:37,073 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [5, 5] total 7 [2023-12-16 02:52:37,074 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1447669161] [2023-12-16 02:52:37,074 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2023-12-16 02:52:37,075 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2023-12-16 02:52:37,075 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-12-16 02:52:37,076 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2023-12-16 02:52:37,076 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=17, Invalid=25, Unknown=0, NotChecked=0, Total=42 [2023-12-16 02:52:37,076 INFO L87 Difference]: Start difference. First operand 319 states and 526 transitions. Second operand has 7 states, 7 states have (on average 15.142857142857142) internal successors, (106), 7 states have internal predecessors, (106), 2 states have call successors, (90), 2 states have call predecessors, (90), 4 states have return successors, (91), 2 states have call predecessors, (91), 2 states have call successors, (91) [2023-12-16 02:52:37,485 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-16 02:52:37,485 INFO L93 Difference]: Finished difference Result 647 states and 1060 transitions. [2023-12-16 02:52:37,486 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2023-12-16 02:52:37,486 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 15.142857142857142) internal successors, (106), 7 states have internal predecessors, (106), 2 states have call successors, (90), 2 states have call predecessors, (90), 4 states have return successors, (91), 2 states have call predecessors, (91), 2 states have call successors, (91) Word has length 439 [2023-12-16 02:52:37,489 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-16 02:52:37,495 INFO L225 Difference]: With dead ends: 647 [2023-12-16 02:52:37,495 INFO L226 Difference]: Without dead ends: 329 [2023-12-16 02:52:37,497 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 880 GetRequests, 870 SyntacticMatches, 1 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 5 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=45, Invalid=65, Unknown=0, NotChecked=0, Total=110 [2023-12-16 02:52:37,499 INFO L413 NwaCegarLoop]: 248 mSDtfsCounter, 333 mSDsluCounter, 356 mSDsCounter, 0 mSdLazyCounter, 366 mSolverCounterSat, 99 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 379 SdHoareTripleChecker+Valid, 604 SdHoareTripleChecker+Invalid, 465 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 99 IncrementalHoareTripleChecker+Valid, 366 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2023-12-16 02:52:37,502 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [379 Valid, 604 Invalid, 465 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [99 Valid, 366 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2023-12-16 02:52:37,505 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 329 states. [2023-12-16 02:52:37,548 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 329 to 323. [2023-12-16 02:52:37,549 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 323 states, 210 states have (on average 1.4714285714285715) internal successors, (309), 211 states have internal predecessors, (309), 109 states have call successors, (109), 3 states have call predecessors, (109), 3 states have return successors, (109), 108 states have call predecessors, (109), 109 states have call successors, (109) [2023-12-16 02:52:37,551 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 323 states to 323 states and 527 transitions. [2023-12-16 02:52:37,551 INFO L78 Accepts]: Start accepts. Automaton has 323 states and 527 transitions. Word has length 439 [2023-12-16 02:52:37,556 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-16 02:52:37,557 INFO L495 AbstractCegarLoop]: Abstraction has 323 states and 527 transitions. [2023-12-16 02:52:37,557 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 15.142857142857142) internal successors, (106), 7 states have internal predecessors, (106), 2 states have call successors, (90), 2 states have call predecessors, (90), 4 states have return successors, (91), 2 states have call predecessors, (91), 2 states have call successors, (91) [2023-12-16 02:52:37,558 INFO L276 IsEmpty]: Start isEmpty. Operand 323 states and 527 transitions. [2023-12-16 02:52:37,564 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 441 [2023-12-16 02:52:37,564 INFO L187 NwaCegarLoop]: Found error trace [2023-12-16 02:52:37,564 INFO L195 NwaCegarLoop]: trace histogram [69, 69, 69, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-16 02:52:37,571 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Ended with exit code 0 [2023-12-16 02:52:37,771 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 [2023-12-16 02:52:37,771 INFO L420 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-16 02:52:37,772 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-16 02:52:37,772 INFO L85 PathProgramCache]: Analyzing trace with hash -1715451432, now seen corresponding path program 1 times [2023-12-16 02:52:37,772 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-12-16 02:52:37,772 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [548928780] [2023-12-16 02:52:37,772 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-16 02:52:37,773 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-16 02:52:37,870 ERROR L246 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2023-12-16 02:52:37,871 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [2140343015] [2023-12-16 02:52:37,871 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-16 02:52:37,872 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-12-16 02:52:37,872 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-12-16 02:52:37,873 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) [2023-12-16 02:52:37,889 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Waiting until timeout for monitored process [2023-12-16 02:52:38,175 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 02:52:38,181 INFO L262 TraceCheckSpWp]: Trace formula consists of 1029 conjuncts, 29 conjunts are in the unsatisfiable core [2023-12-16 02:52:38,189 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-16 02:52:40,893 INFO L134 CoverageAnalysis]: Checked inductivity of 9384 backedges. 5415 proven. 294 refuted. 0 times theorem prover too weak. 3675 trivial. 0 not checked. [2023-12-16 02:52:40,893 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-12-16 02:52:42,399 INFO L134 CoverageAnalysis]: Checked inductivity of 9384 backedges. 111 proven. 93 refuted. 0 times theorem prover too weak. 9180 trivial. 0 not checked. [2023-12-16 02:52:42,401 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-12-16 02:52:42,401 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [548928780] [2023-12-16 02:52:42,401 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2023-12-16 02:52:42,401 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [2140343015] [2023-12-16 02:52:42,401 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [2140343015] provided 0 perfect and 2 imperfect interpolant sequences [2023-12-16 02:52:42,401 INFO L185 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2023-12-16 02:52:42,401 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [18, 15] total 32 [2023-12-16 02:52:42,401 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1983087604] [2023-12-16 02:52:42,402 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2023-12-16 02:52:42,403 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 32 states [2023-12-16 02:52:42,403 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-12-16 02:52:42,405 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 32 interpolants. [2023-12-16 02:52:42,406 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=247, Invalid=745, Unknown=0, NotChecked=0, Total=992 [2023-12-16 02:52:42,407 INFO L87 Difference]: Start difference. First operand 323 states and 527 transitions. Second operand has 32 states, 31 states have (on average 6.129032258064516) internal successors, (190), 30 states have internal predecessors, (190), 8 states have call successors, (138), 5 states have call predecessors, (138), 8 states have return successors, (138), 8 states have call predecessors, (138), 8 states have call successors, (138) [2023-12-16 02:53:08,244 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-16 02:53:08,245 INFO L93 Difference]: Finished difference Result 9491 states and 14931 transitions. [2023-12-16 02:53:08,248 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 251 states. [2023-12-16 02:53:08,248 INFO L78 Accepts]: Start accepts. Automaton has has 32 states, 31 states have (on average 6.129032258064516) internal successors, (190), 30 states have internal predecessors, (190), 8 states have call successors, (138), 5 states have call predecessors, (138), 8 states have return successors, (138), 8 states have call predecessors, (138), 8 states have call successors, (138) Word has length 440 [2023-12-16 02:53:08,254 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-16 02:53:08,298 INFO L225 Difference]: With dead ends: 9491 [2023-12-16 02:53:08,298 INFO L226 Difference]: Without dead ends: 9169 [2023-12-16 02:53:08,317 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 1179 GetRequests, 914 SyntacticMatches, 0 SemanticMatches, 265 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 31378 ImplicationChecksByTransitivity, 11.7s TimeCoverageRelationStatistics Valid=14927, Invalid=56095, Unknown=0, NotChecked=0, Total=71022 [2023-12-16 02:53:08,318 INFO L413 NwaCegarLoop]: 461 mSDtfsCounter, 6875 mSDsluCounter, 7344 mSDsCounter, 0 mSdLazyCounter, 9739 mSolverCounterSat, 3380 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 10.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 7159 SdHoareTripleChecker+Valid, 7805 SdHoareTripleChecker+Invalid, 13119 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 3380 IncrementalHoareTripleChecker+Valid, 9739 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 11.9s IncrementalHoareTripleChecker+Time [2023-12-16 02:53:08,318 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [7159 Valid, 7805 Invalid, 13119 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [3380 Valid, 9739 Invalid, 0 Unknown, 0 Unchecked, 11.9s Time] [2023-12-16 02:53:08,327 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 9169 states. [2023-12-16 02:53:09,089 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 9169 to 3900. [2023-12-16 02:53:09,097 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3900 states, 2676 states have (on average 1.4701046337817638) internal successors, (3934), 2704 states have internal predecessors, (3934), 1152 states have call successors, (1152), 71 states have call predecessors, (1152), 71 states have return successors, (1152), 1124 states have call predecessors, (1152), 1152 states have call successors, (1152) [2023-12-16 02:53:09,126 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3900 states to 3900 states and 6238 transitions. [2023-12-16 02:53:09,127 INFO L78 Accepts]: Start accepts. Automaton has 3900 states and 6238 transitions. Word has length 440 [2023-12-16 02:53:09,128 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-16 02:53:09,128 INFO L495 AbstractCegarLoop]: Abstraction has 3900 states and 6238 transitions. [2023-12-16 02:53:09,129 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 32 states, 31 states have (on average 6.129032258064516) internal successors, (190), 30 states have internal predecessors, (190), 8 states have call successors, (138), 5 states have call predecessors, (138), 8 states have return successors, (138), 8 states have call predecessors, (138), 8 states have call successors, (138) [2023-12-16 02:53:09,129 INFO L276 IsEmpty]: Start isEmpty. Operand 3900 states and 6238 transitions. [2023-12-16 02:53:09,137 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 441 [2023-12-16 02:53:09,138 INFO L187 NwaCegarLoop]: Found error trace [2023-12-16 02:53:09,138 INFO L195 NwaCegarLoop]: trace histogram [69, 69, 69, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-16 02:53:09,148 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Forceful destruction successful, exit code 0 [2023-12-16 02:53:09,348 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 [2023-12-16 02:53:09,349 INFO L420 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-16 02:53:09,349 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-16 02:53:09,349 INFO L85 PathProgramCache]: Analyzing trace with hash -1787837990, now seen corresponding path program 1 times [2023-12-16 02:53:09,349 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-12-16 02:53:09,349 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1829670212] [2023-12-16 02:53:09,350 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-16 02:53:09,350 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-16 02:53:09,402 ERROR L246 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2023-12-16 02:53:09,403 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1580342039] [2023-12-16 02:53:09,403 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-16 02:53:09,403 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-12-16 02:53:09,403 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-12-16 02:53:09,404 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) [2023-12-16 02:53:09,409 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Waiting until timeout for monitored process [2023-12-16 02:53:09,708 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 02:53:09,712 INFO L262 TraceCheckSpWp]: Trace formula consists of 1027 conjuncts, 46 conjunts are in the unsatisfiable core [2023-12-16 02:53:09,738 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-16 02:53:21,619 INFO L134 CoverageAnalysis]: Checked inductivity of 9384 backedges. 5179 proven. 573 refuted. 0 times theorem prover too weak. 3632 trivial. 0 not checked. [2023-12-16 02:53:21,619 INFO L327 TraceCheckSpWp]: Computing backward predicates... Received shutdown request... [2023-12-16 02:53:28,029 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 [2023-12-16 02:53:28,033 INFO L805 garLoopResultBuilder]: Registering result TIMEOUT for location ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION (0 of 1 remaining) [2023-12-16 02:53:28,036 WARN L340 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Timeout while monitored process is still running, waiting 1000 ms for graceful end [2023-12-16 02:53:28,044 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Forceful destruction successful, exit code 0 [2023-12-16 02:53:28,244 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 [2023-12-16 02:53:28,245 WARN L619 AbstractCegarLoop]: Verification canceled: while NwaCegarLoop was analyzing trace of length 441 with TraceHistMax 69,while TraceCheckSpWp was constructing backward predicates,while PolyPacSimplificationTermWalker was simplifying a ∨-3-1 term,while PolyPacSimplificationTermWalker was simplifying 3 xjuncts wrt. a ∧-9-2-2-3-1 context. [2023-12-16 02:53:28,251 INFO L445 BasicCegarLoop]: Path program histogram: [1, 1, 1, 1, 1] [2023-12-16 02:53:28,253 INFO L179 ceAbstractionStarter]: Computing trace abstraction results [2023-12-16 02:53:28,257 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 16.12 02:53:28 BoogieIcfgContainer [2023-12-16 02:53:28,257 INFO L131 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2023-12-16 02:53:28,258 INFO L158 Benchmark]: Toolchain (without parser) took 55849.28ms. Allocated memory was 360.7MB in the beginning and 901.8MB in the end (delta: 541.1MB). Free memory was 303.6MB in the beginning and 756.3MB in the end (delta: -452.7MB). Peak memory consumption was 89.7MB. Max. memory is 8.0GB. [2023-12-16 02:53:28,258 INFO L158 Benchmark]: CDTParser took 0.15ms. Allocated memory is still 229.6MB. Free memory was 184.0MB in the beginning and 183.8MB in the end (delta: 160.8kB). There was no memory consumed. Max. memory is 8.0GB. [2023-12-16 02:53:28,258 INFO L158 Benchmark]: CACSL2BoogieTranslator took 394.40ms. Allocated memory is still 360.7MB. Free memory was 303.6MB in the beginning and 280.9MB in the end (delta: 22.7MB). Peak memory consumption was 23.1MB. Max. memory is 8.0GB. [2023-12-16 02:53:28,259 INFO L158 Benchmark]: Boogie Procedure Inliner took 77.11ms. Allocated memory is still 360.7MB. Free memory was 280.9MB in the beginning and 275.0MB in the end (delta: 5.9MB). Peak memory consumption was 5.2MB. Max. memory is 8.0GB. [2023-12-16 02:53:28,259 INFO L158 Benchmark]: Boogie Preprocessor took 79.94ms. Allocated memory is still 360.7MB. Free memory was 275.0MB in the beginning and 267.9MB in the end (delta: 7.1MB). Peak memory consumption was 7.3MB. Max. memory is 8.0GB. [2023-12-16 02:53:28,259 INFO L158 Benchmark]: RCFGBuilder took 849.21ms. Allocated memory is still 360.7MB. Free memory was 267.9MB in the beginning and 287.7MB in the end (delta: -19.8MB). Peak memory consumption was 15.1MB. Max. memory is 8.0GB. [2023-12-16 02:53:28,259 INFO L158 Benchmark]: TraceAbstraction took 54443.75ms. Allocated memory was 360.7MB in the beginning and 901.8MB in the end (delta: 541.1MB). Free memory was 287.2MB in the beginning and 756.3MB in the end (delta: -469.2MB). Peak memory consumption was 72.4MB. Max. memory is 8.0GB. [2023-12-16 02:53:28,261 INFO L338 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.15ms. Allocated memory is still 229.6MB. Free memory was 184.0MB in the beginning and 183.8MB in the end (delta: 160.8kB). There was no memory consumed. Max. memory is 8.0GB. * CACSL2BoogieTranslator took 394.40ms. Allocated memory is still 360.7MB. Free memory was 303.6MB in the beginning and 280.9MB in the end (delta: 22.7MB). Peak memory consumption was 23.1MB. Max. memory is 8.0GB. * Boogie Procedure Inliner took 77.11ms. Allocated memory is still 360.7MB. Free memory was 280.9MB in the beginning and 275.0MB in the end (delta: 5.9MB). Peak memory consumption was 5.2MB. Max. memory is 8.0GB. * Boogie Preprocessor took 79.94ms. Allocated memory is still 360.7MB. Free memory was 275.0MB in the beginning and 267.9MB in the end (delta: 7.1MB). Peak memory consumption was 7.3MB. Max. memory is 8.0GB. * RCFGBuilder took 849.21ms. Allocated memory is still 360.7MB. Free memory was 267.9MB in the beginning and 287.7MB in the end (delta: -19.8MB). Peak memory consumption was 15.1MB. Max. memory is 8.0GB. * TraceAbstraction took 54443.75ms. Allocated memory was 360.7MB in the beginning and 901.8MB in the end (delta: 541.1MB). Free memory was 287.2MB in the beginning and 756.3MB in the end (delta: -469.2MB). Peak memory consumption was 72.4MB. Max. memory is 8.0GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - StatisticsResult: ErrorAutomatonStatistics NumberErrorTraces: 0, NumberStatementsAllTraces: 0, NumberRelevantStatements: 0, 0.0s ErrorAutomatonConstructionTimeTotal, 0.0s FaulLocalizationTime, NumberStatementsFirstTrace: -1, TraceLengthAvg: 0, 0.0s ErrorAutomatonConstructionTimeAvg, 0.0s ErrorAutomatonDifferenceTimeAvg, 0.0s ErrorAutomatonDifferenceTimeTotal, NumberOfNoEnhancement: 0, NumberOfFiniteEnhancement: 0, NumberOfInfiniteEnhancement: 0 - TimeoutResultAtElement [Line: 19]: Timeout (TraceAbstraction) Unable to prove that a call to reach_error is unreachable (line 19). Cancelled while NwaCegarLoop was analyzing trace of length 441 with TraceHistMax 69,while TraceCheckSpWp was constructing backward predicates,while PolyPacSimplificationTermWalker was simplifying a ∨-3-1 term,while PolyPacSimplificationTermWalker was simplifying 3 xjuncts wrt. a ∧-9-2-2-3-1 context. - StatisticsResult: Ultimate Automizer benchmark data CFG has 2 procedures, 197 locations, 1 error locations. Started 1 CEGAR loops. OverallTime: 54.4s, OverallIterations: 5, TraceHistogramMax: 69, PathProgramHistogramMax: 1, EmptinessCheckTime: 0.1s, AutomataDifference: 26.6s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 7749 SdHoareTripleChecker+Valid, 12.3s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 7419 mSDsluCounter, 9424 SdHoareTripleChecker+Invalid, 10.6s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 7989 mSDsCounter, 3493 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 10133 IncrementalHoareTripleChecker+Invalid, 13626 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 3493 mSolverCounterUnsat, 1435 mSDtfsCounter, 10133 mSolverCounterSat, 0.1s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown, PredicateUnifierStatistics: 0 DeclaredPredicates, 2935 GetRequests, 2659 SyntacticMatches, 1 SemanticMatches, 275 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 31383 ImplicationChecksByTransitivity, 11.8s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=3900occurred in iteration=4, InterpolantAutomatonStates: 265, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: 1.0s AutomataMinimizationTime, 4 MinimizatonAttempts, 5278 StatesRemovedByMinimization, 3 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.3s SsaConstructionTime, 0.9s SatisfiabilityAnalysisTime, 5.1s InterpolantComputationTime, 2196 NumberOfCodeBlocks, 2196 NumberOfCodeBlocksAsserted, 5 NumberOfCheckSat, 2630 ConstructedInterpolants, 0 QuantifiedInterpolants, 10290 SizeOfPredicates, 16 NumberOfNonLiveVariables, 4107 ConjunctsInSsa, 38 ConjunctsInUnsatCore, 6 InterpolantComputations, 2 PerfectInterpolantSequences, 55791/56304 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