/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_variablewrapping_wrapper-sp_file-84.i -------------------------------------------------------------------------------- This is Ultimate 0.2.4-tmp.fs.bitabs-eval-d9c3e40-m [2023-12-16 04:34:39,406 INFO L188 SettingsManager]: Resetting all preferences to default values... [2023-12-16 04:34:39,444 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 04:34:39,447 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2023-12-16 04:34:39,447 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2023-12-16 04:34:39,461 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2023-12-16 04:34:39,462 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2023-12-16 04:34:39,462 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2023-12-16 04:34:39,462 INFO L151 SettingsManager]: Preferences of Boogie Preprocessor differ from their defaults: [2023-12-16 04:34:39,463 INFO L153 SettingsManager]: * Use memory slicer=true [2023-12-16 04:34:39,463 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2023-12-16 04:34:39,463 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2023-12-16 04:34:39,463 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2023-12-16 04:34:39,464 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2023-12-16 04:34:39,464 INFO L153 SettingsManager]: * Use SBE=true [2023-12-16 04:34:39,464 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2023-12-16 04:34:39,464 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2023-12-16 04:34:39,465 INFO L153 SettingsManager]: * sizeof long=4 [2023-12-16 04:34:39,465 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2023-12-16 04:34:39,465 INFO L153 SettingsManager]: * sizeof POINTER=4 [2023-12-16 04:34:39,465 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2023-12-16 04:34:39,466 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2023-12-16 04:34:39,466 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2023-12-16 04:34:39,466 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2023-12-16 04:34:39,466 INFO L153 SettingsManager]: * Allow undefined functions=false [2023-12-16 04:34:39,467 INFO L153 SettingsManager]: * sizeof long double=12 [2023-12-16 04:34:39,467 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2023-12-16 04:34:39,467 INFO L153 SettingsManager]: * Use constant arrays=true [2023-12-16 04:34:39,467 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2023-12-16 04:34:39,467 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2023-12-16 04:34:39,468 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2023-12-16 04:34:39,468 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2023-12-16 04:34:39,468 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2023-12-16 04:34:39,468 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2023-12-16 04:34:39,469 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2023-12-16 04:34:39,469 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2023-12-16 04:34:39,469 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2023-12-16 04:34:39,469 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2023-12-16 04:34:39,470 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2023-12-16 04:34:39,470 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2023-12-16 04:34:39,470 INFO L153 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2023-12-16 04:34:39,470 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2023-12-16 04:34:39,471 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2023-12-16 04:34:39,471 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Use bitabs translation -> false [2023-12-16 04:34:39,657 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2023-12-16 04:34:39,672 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2023-12-16 04:34:39,674 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2023-12-16 04:34:39,675 INFO L270 PluginConnector]: Initializing CDTParser... [2023-12-16 04:34:39,675 INFO L274 PluginConnector]: CDTParser initialized [2023-12-16 04:34:39,676 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/hardness-nfm22/hardness_variablewrapping_wrapper-sp_file-84.i [2023-12-16 04:34:40,758 INFO L533 CDTParser]: Created temporary CDT project at NULL [2023-12-16 04:34:40,927 INFO L384 CDTParser]: Found 1 translation units. [2023-12-16 04:34:40,928 INFO L180 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/hardness-nfm22/hardness_variablewrapping_wrapper-sp_file-84.i [2023-12-16 04:34:40,937 INFO L427 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/c78555bd2/38ef862a98ea4624b70829d010bdb72f/FLAG4fbeeb6be [2023-12-16 04:34:40,950 INFO L435 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/c78555bd2/38ef862a98ea4624b70829d010bdb72f [2023-12-16 04:34:40,952 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2023-12-16 04:34:40,954 INFO L133 ToolchainWalker]: Walking toolchain with 5 elements. [2023-12-16 04:34:40,957 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2023-12-16 04:34:40,957 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2023-12-16 04:34:40,960 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2023-12-16 04:34:40,961 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 16.12 04:34:40" (1/1) ... [2023-12-16 04:34:40,962 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@33b76896 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.12 04:34:40, skipping insertion in model container [2023-12-16 04:34:40,962 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 16.12 04:34:40" (1/1) ... [2023-12-16 04:34:40,990 INFO L177 MainTranslator]: Built tables and reachable declarations [2023-12-16 04:34:41,093 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_variablewrapping_wrapper-sp_file-84.i[917,930] [2023-12-16 04:34:41,152 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-12-16 04:34:41,165 INFO L202 MainTranslator]: Completed pre-run [2023-12-16 04:34:41,173 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_variablewrapping_wrapper-sp_file-84.i[917,930] [2023-12-16 04:34:41,204 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-12-16 04:34:41,218 INFO L206 MainTranslator]: Completed translation [2023-12-16 04:34:41,219 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.12 04:34:41 WrapperNode [2023-12-16 04:34:41,219 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2023-12-16 04:34:41,220 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2023-12-16 04:34:41,220 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2023-12-16 04:34:41,220 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2023-12-16 04:34:41,224 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.12 04:34:41" (1/1) ... [2023-12-16 04:34:41,243 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.12 04:34:41" (1/1) ... [2023-12-16 04:34:41,291 INFO L138 Inliner]: procedures = 29, calls = 154, calls flagged for inlining = 8, calls inlined = 8, statements flattened = 437 [2023-12-16 04:34:41,291 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2023-12-16 04:34:41,292 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2023-12-16 04:34:41,292 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2023-12-16 04:34:41,292 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2023-12-16 04:34:41,300 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.12 04:34:41" (1/1) ... [2023-12-16 04:34:41,300 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.12 04:34:41" (1/1) ... [2023-12-16 04:34:41,310 INFO L184 PluginConnector]: Executing the observer MemorySlicer from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.12 04:34:41" (1/1) ... [2023-12-16 04:34:41,340 INFO L175 MemorySlicer]: Split 122 memory accesses to 2 slices as follows [2, 120]. 98 percent of accesses are in the largest equivalence class. The 17 initializations are split as follows [2, 15]. The 17 writes are split as follows [0, 17]. [2023-12-16 04:34:41,340 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.12 04:34:41" (1/1) ... [2023-12-16 04:34:41,340 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.12 04:34:41" (1/1) ... [2023-12-16 04:34:41,363 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.12 04:34:41" (1/1) ... [2023-12-16 04:34:41,366 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.12 04:34:41" (1/1) ... [2023-12-16 04:34:41,369 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.12 04:34:41" (1/1) ... [2023-12-16 04:34:41,371 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.12 04:34:41" (1/1) ... [2023-12-16 04:34:41,375 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2023-12-16 04:34:41,375 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2023-12-16 04:34:41,376 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2023-12-16 04:34:41,376 INFO L274 PluginConnector]: RCFGBuilder initialized [2023-12-16 04:34:41,387 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.12 04:34:41" (1/1) ... [2023-12-16 04:34:41,391 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2023-12-16 04:34:41,398 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-12-16 04:34:41,442 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 04:34:41,478 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2023-12-16 04:34:41,478 INFO L130 BoogieDeclarations]: Found specification of procedure read~real#0 [2023-12-16 04:34:41,478 INFO L130 BoogieDeclarations]: Found specification of procedure read~real#1 [2023-12-16 04:34:41,479 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#0 [2023-12-16 04:34:41,479 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#1 [2023-12-16 04:34:41,479 INFO L130 BoogieDeclarations]: Found specification of procedure write~real#0 [2023-12-16 04:34:41,479 INFO L130 BoogieDeclarations]: Found specification of procedure write~real#1 [2023-12-16 04:34:41,480 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#0 [2023-12-16 04:34:41,480 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#1 [2023-12-16 04:34:41,480 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~real#0 [2023-12-16 04:34:41,480 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~real#1 [2023-12-16 04:34:41,480 INFO L130 BoogieDeclarations]: Found specification of procedure assume_abort_if_not [2023-12-16 04:34:41,480 INFO L138 BoogieDeclarations]: Found implementation of procedure assume_abort_if_not [2023-12-16 04:34:41,481 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#0 [2023-12-16 04:34:41,481 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#1 [2023-12-16 04:34:41,481 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2023-12-16 04:34:41,481 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2023-12-16 04:34:41,465 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 04:34:41,565 INFO L241 CfgBuilder]: Building ICFG [2023-12-16 04:34:41,566 INFO L267 CfgBuilder]: Building CFG for each procedure with an implementation [2023-12-16 04:34:41,918 INFO L282 CfgBuilder]: Performing block encoding [2023-12-16 04:34:41,939 INFO L304 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2023-12-16 04:34:41,939 INFO L309 CfgBuilder]: Removed 1 assume(true) statements. [2023-12-16 04:34:41,939 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 16.12 04:34:41 BoogieIcfgContainer [2023-12-16 04:34:41,939 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2023-12-16 04:34:41,941 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2023-12-16 04:34:41,941 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2023-12-16 04:34:41,943 INFO L274 PluginConnector]: TraceAbstraction initialized [2023-12-16 04:34:41,943 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 16.12 04:34:40" (1/3) ... [2023-12-16 04:34:41,944 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@2ea3f7c5 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 16.12 04:34:41, skipping insertion in model container [2023-12-16 04:34:41,944 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.12 04:34:41" (2/3) ... [2023-12-16 04:34:41,944 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@2ea3f7c5 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 16.12 04:34:41, skipping insertion in model container [2023-12-16 04:34:41,944 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 16.12 04:34:41" (3/3) ... [2023-12-16 04:34:41,945 INFO L112 eAbstractionObserver]: Analyzing ICFG hardness_variablewrapping_wrapper-sp_file-84.i [2023-12-16 04:34:41,956 INFO L204 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2023-12-16 04:34:41,957 INFO L163 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2023-12-16 04:34:42,003 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2023-12-16 04:34:42,008 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;@5803a3c6, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2023-12-16 04:34:42,009 INFO L358 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2023-12-16 04:34:42,012 INFO L276 IsEmpty]: Start isEmpty. Operand has 96 states, 73 states have (on average 1.3835616438356164) internal successors, (101), 74 states have internal predecessors, (101), 20 states have call successors, (20), 1 states have call predecessors, (20), 1 states have return successors, (20), 20 states have call predecessors, (20), 20 states have call successors, (20) [2023-12-16 04:34:42,024 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 146 [2023-12-16 04:34:42,024 INFO L187 NwaCegarLoop]: Found error trace [2023-12-16 04:34:42,025 INFO L195 NwaCegarLoop]: trace histogram [20, 20, 20, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 04:34:42,025 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-16 04:34:42,028 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-16 04:34:42,029 INFO L85 PathProgramCache]: Analyzing trace with hash -2037949046, now seen corresponding path program 1 times [2023-12-16 04:34:42,035 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-12-16 04:34:42,036 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1965335352] [2023-12-16 04:34:42,036 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-16 04:34:42,036 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-16 04:34:42,174 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 04:34:42,293 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2023-12-16 04:34:42,295 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 04:34:42,297 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2023-12-16 04:34:42,298 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 04:34:42,300 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2023-12-16 04:34:42,301 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 04:34:42,302 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 20 [2023-12-16 04:34:42,303 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 04:34:42,305 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 26 [2023-12-16 04:34:42,305 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 04:34:42,307 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 32 [2023-12-16 04:34:42,307 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 04:34:42,309 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 38 [2023-12-16 04:34:42,310 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 04:34:42,311 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 44 [2023-12-16 04:34:42,312 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 04:34:42,313 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 50 [2023-12-16 04:34:42,314 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 04:34:42,316 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 56 [2023-12-16 04:34:42,317 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 04:34:42,318 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 62 [2023-12-16 04:34:42,319 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 04:34:42,321 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 68 [2023-12-16 04:34:42,322 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 04:34:42,323 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 74 [2023-12-16 04:34:42,324 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 04:34:42,326 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 80 [2023-12-16 04:34:42,328 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 04:34:42,329 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 86 [2023-12-16 04:34:42,330 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 04:34:42,331 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 92 [2023-12-16 04:34:42,332 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 04:34:42,333 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 98 [2023-12-16 04:34:42,334 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 04:34:42,336 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 104 [2023-12-16 04:34:42,336 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 04:34:42,338 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 110 [2023-12-16 04:34:42,339 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 04:34:42,340 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 119 [2023-12-16 04:34:42,341 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 04:34:42,343 INFO L134 CoverageAnalysis]: Checked inductivity of 760 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 760 trivial. 0 not checked. [2023-12-16 04:34:42,344 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-12-16 04:34:42,344 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1965335352] [2023-12-16 04:34:42,344 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1965335352] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-16 04:34:42,345 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-16 04:34:42,345 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2023-12-16 04:34:42,346 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1884364844] [2023-12-16 04:34:42,346 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-16 04:34:42,349 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2023-12-16 04:34:42,349 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-12-16 04:34:42,365 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2023-12-16 04:34:42,366 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2023-12-16 04:34:42,367 INFO L87 Difference]: Start difference. First operand has 96 states, 73 states have (on average 1.3835616438356164) internal successors, (101), 74 states have internal predecessors, (101), 20 states have call successors, (20), 1 states have call predecessors, (20), 1 states have return successors, (20), 20 states have call predecessors, (20), 20 states have call successors, (20) Second operand has 2 states, 2 states have (on average 24.0) internal successors, (48), 2 states have internal predecessors, (48), 2 states have call successors, (20), 1 states have call predecessors, (20), 1 states have return successors, (20), 1 states have call predecessors, (20), 2 states have call successors, (20) [2023-12-16 04:34:42,396 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-16 04:34:42,396 INFO L93 Difference]: Finished difference Result 189 states and 300 transitions. [2023-12-16 04:34:42,397 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2023-12-16 04:34:42,398 INFO L78 Accepts]: Start accepts. Automaton has has 2 states, 2 states have (on average 24.0) internal successors, (48), 2 states have internal predecessors, (48), 2 states have call successors, (20), 1 states have call predecessors, (20), 1 states have return successors, (20), 1 states have call predecessors, (20), 2 states have call successors, (20) Word has length 145 [2023-12-16 04:34:42,398 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-16 04:34:42,402 INFO L225 Difference]: With dead ends: 189 [2023-12-16 04:34:42,402 INFO L226 Difference]: Without dead ends: 94 [2023-12-16 04:34:42,405 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 62 GetRequests, 62 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 04:34:42,407 INFO L413 NwaCegarLoop]: 132 mSDtfsCounter, 0 mSDsluCounter, 0 mSDsCounter, 0 mSdLazyCounter, 4 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 132 SdHoareTripleChecker+Invalid, 4 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 4 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2023-12-16 04:34:42,407 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 132 Invalid, 4 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 4 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2023-12-16 04:34:42,417 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 94 states. [2023-12-16 04:34:42,431 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 94 to 94. [2023-12-16 04:34:42,432 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 94 states, 72 states have (on average 1.3333333333333333) internal successors, (96), 72 states have internal predecessors, (96), 20 states have call successors, (20), 1 states have call predecessors, (20), 1 states have return successors, (20), 20 states have call predecessors, (20), 20 states have call successors, (20) [2023-12-16 04:34:42,434 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 94 states to 94 states and 136 transitions. [2023-12-16 04:34:42,434 INFO L78 Accepts]: Start accepts. Automaton has 94 states and 136 transitions. Word has length 145 [2023-12-16 04:34:42,434 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-16 04:34:42,435 INFO L495 AbstractCegarLoop]: Abstraction has 94 states and 136 transitions. [2023-12-16 04:34:42,435 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 2 states, 2 states have (on average 24.0) internal successors, (48), 2 states have internal predecessors, (48), 2 states have call successors, (20), 1 states have call predecessors, (20), 1 states have return successors, (20), 1 states have call predecessors, (20), 2 states have call successors, (20) [2023-12-16 04:34:42,435 INFO L276 IsEmpty]: Start isEmpty. Operand 94 states and 136 transitions. [2023-12-16 04:34:42,438 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 146 [2023-12-16 04:34:42,438 INFO L187 NwaCegarLoop]: Found error trace [2023-12-16 04:34:42,438 INFO L195 NwaCegarLoop]: trace histogram [20, 20, 20, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 04:34:42,438 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2023-12-16 04:34:42,438 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-16 04:34:42,438 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-16 04:34:42,439 INFO L85 PathProgramCache]: Analyzing trace with hash 1859365614, now seen corresponding path program 1 times [2023-12-16 04:34:42,439 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-12-16 04:34:42,439 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1439700395] [2023-12-16 04:34:42,439 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-16 04:34:42,439 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-16 04:34:42,485 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 04:34:42,639 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2023-12-16 04:34:42,640 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 04:34:42,642 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2023-12-16 04:34:42,643 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 04:34:42,645 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2023-12-16 04:34:42,646 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 04:34:42,647 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 20 [2023-12-16 04:34:42,650 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 04:34:42,659 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 26 [2023-12-16 04:34:42,660 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 04:34:42,661 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 32 [2023-12-16 04:34:42,662 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 04:34:42,663 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 38 [2023-12-16 04:34:42,664 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 04:34:42,664 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 44 [2023-12-16 04:34:42,665 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 04:34:42,666 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 50 [2023-12-16 04:34:42,667 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 04:34:42,667 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 56 [2023-12-16 04:34:42,673 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 04:34:42,677 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 62 [2023-12-16 04:34:42,678 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 04:34:42,683 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 68 [2023-12-16 04:34:42,684 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 04:34:42,688 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 74 [2023-12-16 04:34:42,688 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 04:34:42,695 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 80 [2023-12-16 04:34:42,696 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 04:34:42,697 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 86 [2023-12-16 04:34:42,698 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 04:34:42,699 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 92 [2023-12-16 04:34:42,700 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 04:34:42,701 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 98 [2023-12-16 04:34:42,702 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 04:34:42,702 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 104 [2023-12-16 04:34:42,703 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 04:34:42,704 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 110 [2023-12-16 04:34:42,705 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 04:34:42,705 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 119 [2023-12-16 04:34:42,706 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 04:34:42,707 INFO L134 CoverageAnalysis]: Checked inductivity of 760 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 760 trivial. 0 not checked. [2023-12-16 04:34:42,708 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-12-16 04:34:42,708 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1439700395] [2023-12-16 04:34:42,716 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1439700395] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-16 04:34:42,716 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-16 04:34:42,716 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2023-12-16 04:34:42,716 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [791760156] [2023-12-16 04:34:42,716 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-16 04:34:42,718 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2023-12-16 04:34:42,721 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-12-16 04:34:42,722 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2023-12-16 04:34:42,722 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2023-12-16 04:34:42,722 INFO L87 Difference]: Start difference. First operand 94 states and 136 transitions. Second operand has 4 states, 4 states have (on average 12.0) internal successors, (48), 4 states have internal predecessors, (48), 1 states have call successors, (20), 1 states have call predecessors, (20), 1 states have return successors, (20), 1 states have call predecessors, (20), 1 states have call successors, (20) [2023-12-16 04:34:42,805 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-16 04:34:42,806 INFO L93 Difference]: Finished difference Result 191 states and 276 transitions. [2023-12-16 04:34:42,806 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2023-12-16 04:34:42,806 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 12.0) internal successors, (48), 4 states have internal predecessors, (48), 1 states have call successors, (20), 1 states have call predecessors, (20), 1 states have return successors, (20), 1 states have call predecessors, (20), 1 states have call successors, (20) Word has length 145 [2023-12-16 04:34:42,807 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-16 04:34:42,807 INFO L225 Difference]: With dead ends: 191 [2023-12-16 04:34:42,807 INFO L226 Difference]: Without dead ends: 98 [2023-12-16 04:34:42,808 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 45 GetRequests, 42 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2023-12-16 04:34:42,809 INFO L413 NwaCegarLoop]: 130 mSDtfsCounter, 3 mSDsluCounter, 254 mSDsCounter, 0 mSdLazyCounter, 22 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 3 SdHoareTripleChecker+Valid, 384 SdHoareTripleChecker+Invalid, 23 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 22 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2023-12-16 04:34:42,809 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [3 Valid, 384 Invalid, 23 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 22 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2023-12-16 04:34:42,810 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 98 states. [2023-12-16 04:34:42,815 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 98 to 96. [2023-12-16 04:34:42,815 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 96 states, 74 states have (on average 1.3243243243243243) internal successors, (98), 74 states have internal predecessors, (98), 20 states have call successors, (20), 1 states have call predecessors, (20), 1 states have return successors, (20), 20 states have call predecessors, (20), 20 states have call successors, (20) [2023-12-16 04:34:42,816 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 96 states to 96 states and 138 transitions. [2023-12-16 04:34:42,816 INFO L78 Accepts]: Start accepts. Automaton has 96 states and 138 transitions. Word has length 145 [2023-12-16 04:34:42,817 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-16 04:34:42,817 INFO L495 AbstractCegarLoop]: Abstraction has 96 states and 138 transitions. [2023-12-16 04:34:42,818 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 12.0) internal successors, (48), 4 states have internal predecessors, (48), 1 states have call successors, (20), 1 states have call predecessors, (20), 1 states have return successors, (20), 1 states have call predecessors, (20), 1 states have call successors, (20) [2023-12-16 04:34:42,818 INFO L276 IsEmpty]: Start isEmpty. Operand 96 states and 138 transitions. [2023-12-16 04:34:42,819 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 146 [2023-12-16 04:34:42,819 INFO L187 NwaCegarLoop]: Found error trace [2023-12-16 04:34:42,819 INFO L195 NwaCegarLoop]: trace histogram [20, 20, 20, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 04:34:42,819 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2023-12-16 04:34:42,819 INFO L420 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-16 04:34:42,820 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-16 04:34:42,836 INFO L85 PathProgramCache]: Analyzing trace with hash 1859425196, now seen corresponding path program 1 times [2023-12-16 04:34:42,836 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-12-16 04:34:42,836 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [46108651] [2023-12-16 04:34:42,836 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-16 04:34:42,836 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-16 04:34:42,916 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 04:34:43,133 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2023-12-16 04:34:43,137 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 04:34:43,140 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2023-12-16 04:34:43,142 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 04:34:43,148 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2023-12-16 04:34:43,149 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 04:34:43,151 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 20 [2023-12-16 04:34:43,152 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 04:34:43,153 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 26 [2023-12-16 04:34:43,154 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 04:34:43,156 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 32 [2023-12-16 04:34:43,157 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 04:34:43,159 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 38 [2023-12-16 04:34:43,160 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 04:34:43,161 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 44 [2023-12-16 04:34:43,162 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 04:34:43,165 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 50 [2023-12-16 04:34:43,168 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 04:34:43,170 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 56 [2023-12-16 04:34:43,172 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 04:34:43,174 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 62 [2023-12-16 04:34:43,175 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 04:34:43,178 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 68 [2023-12-16 04:34:43,179 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 04:34:43,180 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 74 [2023-12-16 04:34:43,183 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 04:34:43,185 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 80 [2023-12-16 04:34:43,185 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 04:34:43,187 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 86 [2023-12-16 04:34:43,188 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 04:34:43,192 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 92 [2023-12-16 04:34:43,193 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 04:34:43,196 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 98 [2023-12-16 04:34:43,197 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 04:34:43,200 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 104 [2023-12-16 04:34:43,202 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 04:34:43,204 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 110 [2023-12-16 04:34:43,205 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 04:34:43,206 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 119 [2023-12-16 04:34:43,219 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 04:34:43,222 INFO L134 CoverageAnalysis]: Checked inductivity of 760 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 760 trivial. 0 not checked. [2023-12-16 04:34:43,222 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-12-16 04:34:43,222 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [46108651] [2023-12-16 04:34:43,222 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [46108651] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-16 04:34:43,222 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-16 04:34:43,222 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2023-12-16 04:34:43,222 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1693414261] [2023-12-16 04:34:43,223 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-16 04:34:43,223 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2023-12-16 04:34:43,223 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-12-16 04:34:43,226 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2023-12-16 04:34:43,226 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2023-12-16 04:34:43,227 INFO L87 Difference]: Start difference. First operand 96 states and 138 transitions. Second operand has 5 states, 5 states have (on average 9.6) internal successors, (48), 5 states have internal predecessors, (48), 1 states have call successors, (20), 1 states have call predecessors, (20), 1 states have return successors, (20), 1 states have call predecessors, (20), 1 states have call successors, (20) [2023-12-16 04:34:43,533 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-16 04:34:43,533 INFO L93 Difference]: Finished difference Result 289 states and 416 transitions. [2023-12-16 04:34:43,534 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2023-12-16 04:34:43,534 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 9.6) internal successors, (48), 5 states have internal predecessors, (48), 1 states have call successors, (20), 1 states have call predecessors, (20), 1 states have return successors, (20), 1 states have call predecessors, (20), 1 states have call successors, (20) Word has length 145 [2023-12-16 04:34:43,537 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-16 04:34:43,538 INFO L225 Difference]: With dead ends: 289 [2023-12-16 04:34:43,538 INFO L226 Difference]: Without dead ends: 194 [2023-12-16 04:34:43,539 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 48 GetRequests, 42 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=22, Invalid=34, Unknown=0, NotChecked=0, Total=56 [2023-12-16 04:34:43,540 INFO L413 NwaCegarLoop]: 100 mSDtfsCounter, 142 mSDsluCounter, 262 mSDsCounter, 0 mSdLazyCounter, 172 mSolverCounterSat, 74 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 142 SdHoareTripleChecker+Valid, 362 SdHoareTripleChecker+Invalid, 246 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 74 IncrementalHoareTripleChecker+Valid, 172 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2023-12-16 04:34:43,540 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [142 Valid, 362 Invalid, 246 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [74 Valid, 172 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2023-12-16 04:34:43,541 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 194 states. [2023-12-16 04:34:43,560 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 194 to 162. [2023-12-16 04:34:43,560 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 162 states, 119 states have (on average 1.2857142857142858) internal successors, (153), 119 states have internal predecessors, (153), 40 states have call successors, (40), 2 states have call predecessors, (40), 2 states have return successors, (40), 40 states have call predecessors, (40), 40 states have call successors, (40) [2023-12-16 04:34:43,561 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 162 states to 162 states and 233 transitions. [2023-12-16 04:34:43,562 INFO L78 Accepts]: Start accepts. Automaton has 162 states and 233 transitions. Word has length 145 [2023-12-16 04:34:43,562 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-16 04:34:43,562 INFO L495 AbstractCegarLoop]: Abstraction has 162 states and 233 transitions. [2023-12-16 04:34:43,562 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 9.6) internal successors, (48), 5 states have internal predecessors, (48), 1 states have call successors, (20), 1 states have call predecessors, (20), 1 states have return successors, (20), 1 states have call predecessors, (20), 1 states have call successors, (20) [2023-12-16 04:34:43,562 INFO L276 IsEmpty]: Start isEmpty. Operand 162 states and 233 transitions. [2023-12-16 04:34:43,564 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 154 [2023-12-16 04:34:43,564 INFO L187 NwaCegarLoop]: Found error trace [2023-12-16 04:34:43,564 INFO L195 NwaCegarLoop]: trace histogram [20, 20, 20, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 04:34:43,564 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2023-12-16 04:34:43,564 INFO L420 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-16 04:34:43,565 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-16 04:34:43,565 INFO L85 PathProgramCache]: Analyzing trace with hash 2085711054, now seen corresponding path program 1 times [2023-12-16 04:34:43,565 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-12-16 04:34:43,565 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1920721370] [2023-12-16 04:34:43,565 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-16 04:34:43,565 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-16 04:34:43,782 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 04:34:48,092 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2023-12-16 04:34:48,095 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 04:34:48,107 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2023-12-16 04:34:48,109 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 04:34:48,121 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2023-12-16 04:34:48,122 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 04:34:48,133 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 20 [2023-12-16 04:34:48,135 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 04:34:48,156 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 26 [2023-12-16 04:34:48,157 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 04:34:48,170 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 32 [2023-12-16 04:34:48,171 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 04:34:48,184 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 38 [2023-12-16 04:34:48,186 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 04:34:48,198 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 44 [2023-12-16 04:34:48,200 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 04:34:48,213 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 50 [2023-12-16 04:34:48,214 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 04:34:48,225 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 56 [2023-12-16 04:34:48,226 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 04:34:48,238 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 62 [2023-12-16 04:34:48,240 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 04:34:48,268 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 68 [2023-12-16 04:34:48,270 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 04:34:48,281 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 74 [2023-12-16 04:34:48,283 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 04:34:48,293 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 80 [2023-12-16 04:34:48,294 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 04:34:48,302 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 86 [2023-12-16 04:34:48,304 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 04:34:48,315 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 92 [2023-12-16 04:34:48,316 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 04:34:48,327 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 98 [2023-12-16 04:34:48,328 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 04:34:48,339 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 104 [2023-12-16 04:34:48,341 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 04:34:48,351 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 110 [2023-12-16 04:34:48,353 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 04:34:48,373 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 119 [2023-12-16 04:34:48,375 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 04:34:48,399 INFO L134 CoverageAnalysis]: Checked inductivity of 760 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 760 trivial. 0 not checked. [2023-12-16 04:34:48,400 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-12-16 04:34:48,400 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1920721370] [2023-12-16 04:34:48,400 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1920721370] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-16 04:34:48,400 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-16 04:34:48,400 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [20] imperfect sequences [] total 20 [2023-12-16 04:34:48,400 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [553898498] [2023-12-16 04:34:48,400 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-16 04:34:48,401 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 20 states [2023-12-16 04:34:48,401 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-12-16 04:34:48,401 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 20 interpolants. [2023-12-16 04:34:48,401 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=51, Invalid=329, Unknown=0, NotChecked=0, Total=380 [2023-12-16 04:34:48,402 INFO L87 Difference]: Start difference. First operand 162 states and 233 transitions. Second operand has 20 states, 19 states have (on average 2.9473684210526314) internal successors, (56), 20 states have internal predecessors, (56), 3 states have call successors, (20), 1 states have call predecessors, (20), 1 states have return successors, (20), 2 states have call predecessors, (20), 3 states have call successors, (20) [2023-12-16 04:34:52,014 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-16 04:34:52,014 INFO L93 Difference]: Finished difference Result 420 states and 597 transitions. [2023-12-16 04:34:52,014 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 25 states. [2023-12-16 04:34:52,015 INFO L78 Accepts]: Start accepts. Automaton has has 20 states, 19 states have (on average 2.9473684210526314) internal successors, (56), 20 states have internal predecessors, (56), 3 states have call successors, (20), 1 states have call predecessors, (20), 1 states have return successors, (20), 2 states have call predecessors, (20), 3 states have call successors, (20) Word has length 153 [2023-12-16 04:34:52,016 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-16 04:34:52,017 INFO L225 Difference]: With dead ends: 420 [2023-12-16 04:34:52,018 INFO L226 Difference]: Without dead ends: 325 [2023-12-16 04:34:52,019 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 91 GetRequests, 52 SyntacticMatches, 0 SemanticMatches, 39 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 299 ImplicationChecksByTransitivity, 2.8s TimeCoverageRelationStatistics Valid=314, Invalid=1326, Unknown=0, NotChecked=0, Total=1640 [2023-12-16 04:34:52,019 INFO L413 NwaCegarLoop]: 102 mSDtfsCounter, 644 mSDsluCounter, 934 mSDsCounter, 0 mSdLazyCounter, 1591 mSolverCounterSat, 31 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 645 SdHoareTripleChecker+Valid, 1036 SdHoareTripleChecker+Invalid, 1622 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 31 IncrementalHoareTripleChecker+Valid, 1591 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.4s IncrementalHoareTripleChecker+Time [2023-12-16 04:34:52,019 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [645 Valid, 1036 Invalid, 1622 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [31 Valid, 1591 Invalid, 0 Unknown, 0 Unchecked, 1.4s Time] [2023-12-16 04:34:52,020 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 325 states. [2023-12-16 04:34:52,062 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 325 to 186. [2023-12-16 04:34:52,063 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 186 states, 143 states have (on average 1.3006993006993006) internal successors, (186), 143 states have internal predecessors, (186), 40 states have call successors, (40), 2 states have call predecessors, (40), 2 states have return successors, (40), 40 states have call predecessors, (40), 40 states have call successors, (40) [2023-12-16 04:34:52,067 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 186 states to 186 states and 266 transitions. [2023-12-16 04:34:52,067 INFO L78 Accepts]: Start accepts. Automaton has 186 states and 266 transitions. Word has length 153 [2023-12-16 04:34:52,068 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-16 04:34:52,069 INFO L495 AbstractCegarLoop]: Abstraction has 186 states and 266 transitions. [2023-12-16 04:34:52,069 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 20 states, 19 states have (on average 2.9473684210526314) internal successors, (56), 20 states have internal predecessors, (56), 3 states have call successors, (20), 1 states have call predecessors, (20), 1 states have return successors, (20), 2 states have call predecessors, (20), 3 states have call successors, (20) [2023-12-16 04:34:52,069 INFO L276 IsEmpty]: Start isEmpty. Operand 186 states and 266 transitions. [2023-12-16 04:34:52,073 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 154 [2023-12-16 04:34:52,073 INFO L187 NwaCegarLoop]: Found error trace [2023-12-16 04:34:52,074 INFO L195 NwaCegarLoop]: trace histogram [20, 20, 20, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 04:34:52,074 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2023-12-16 04:34:52,074 INFO L420 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-16 04:34:52,074 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-16 04:34:52,074 INFO L85 PathProgramCache]: Analyzing trace with hash 1268062604, now seen corresponding path program 1 times [2023-12-16 04:34:52,074 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-12-16 04:34:52,075 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [930469443] [2023-12-16 04:34:52,075 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-16 04:34:52,075 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-16 04:34:52,197 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 04:34:55,507 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2023-12-16 04:34:55,509 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 04:34:55,520 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2023-12-16 04:34:55,522 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 04:34:55,532 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2023-12-16 04:34:55,533 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 04:34:55,541 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 20 [2023-12-16 04:34:55,542 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 04:34:55,551 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 26 [2023-12-16 04:34:55,552 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 04:34:55,561 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 32 [2023-12-16 04:34:55,563 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 04:34:55,572 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 38 [2023-12-16 04:34:55,573 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 04:34:55,581 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 44 [2023-12-16 04:34:55,583 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 04:34:55,591 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 50 [2023-12-16 04:34:55,593 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 04:34:55,601 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 56 [2023-12-16 04:34:55,604 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 04:34:55,612 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 62 [2023-12-16 04:34:55,616 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 04:34:55,626 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 68 [2023-12-16 04:34:55,632 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 04:34:55,641 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 74 [2023-12-16 04:34:55,643 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 04:34:55,652 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 80 [2023-12-16 04:34:55,653 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 04:34:55,661 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 86 [2023-12-16 04:34:55,662 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 04:34:55,670 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 92 [2023-12-16 04:34:55,672 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 04:34:55,681 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 98 [2023-12-16 04:34:55,682 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 04:34:55,691 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 104 [2023-12-16 04:34:55,692 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 04:34:55,702 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 110 [2023-12-16 04:34:55,703 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 04:34:55,712 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 119 [2023-12-16 04:34:55,713 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 04:34:55,720 INFO L134 CoverageAnalysis]: Checked inductivity of 760 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 760 trivial. 0 not checked. [2023-12-16 04:34:55,720 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-12-16 04:34:55,720 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [930469443] [2023-12-16 04:34:55,721 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [930469443] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-16 04:34:55,721 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-16 04:34:55,722 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [19] imperfect sequences [] total 19 [2023-12-16 04:34:55,722 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1579683589] [2023-12-16 04:34:55,722 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-16 04:34:55,722 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 19 states [2023-12-16 04:34:55,722 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-12-16 04:34:55,723 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 19 interpolants. [2023-12-16 04:34:55,723 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=51, Invalid=291, Unknown=0, NotChecked=0, Total=342 [2023-12-16 04:34:55,723 INFO L87 Difference]: Start difference. First operand 186 states and 266 transitions. Second operand has 19 states, 18 states have (on average 3.111111111111111) internal successors, (56), 19 states have internal predecessors, (56), 3 states have call successors, (20), 1 states have call predecessors, (20), 1 states have return successors, (20), 2 states have call predecessors, (20), 3 states have call successors, (20) [2023-12-16 04:34:57,852 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-16 04:34:57,852 INFO L93 Difference]: Finished difference Result 375 states and 535 transitions. [2023-12-16 04:34:57,853 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 19 states. [2023-12-16 04:34:57,853 INFO L78 Accepts]: Start accepts. Automaton has has 19 states, 18 states have (on average 3.111111111111111) internal successors, (56), 19 states have internal predecessors, (56), 3 states have call successors, (20), 1 states have call predecessors, (20), 1 states have return successors, (20), 2 states have call predecessors, (20), 3 states have call successors, (20) Word has length 153 [2023-12-16 04:34:57,853 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-16 04:34:57,854 INFO L225 Difference]: With dead ends: 375 [2023-12-16 04:34:57,854 INFO L226 Difference]: Without dead ends: 265 [2023-12-16 04:34:57,855 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 85 GetRequests, 52 SyntacticMatches, 1 SemanticMatches, 32 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 204 ImplicationChecksByTransitivity, 1.6s TimeCoverageRelationStatistics Valid=216, Invalid=906, Unknown=0, NotChecked=0, Total=1122 [2023-12-16 04:34:57,856 INFO L413 NwaCegarLoop]: 88 mSDtfsCounter, 431 mSDsluCounter, 729 mSDsCounter, 0 mSdLazyCounter, 1385 mSolverCounterSat, 27 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.9s Time, 0 mProtectedPredicate, 0 mProtectedAction, 432 SdHoareTripleChecker+Valid, 817 SdHoareTripleChecker+Invalid, 1412 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 27 IncrementalHoareTripleChecker+Valid, 1385 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.0s IncrementalHoareTripleChecker+Time [2023-12-16 04:34:57,856 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [432 Valid, 817 Invalid, 1412 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [27 Valid, 1385 Invalid, 0 Unknown, 0 Unchecked, 1.0s Time] [2023-12-16 04:34:57,857 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 265 states. [2023-12-16 04:34:57,907 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 265 to 188. [2023-12-16 04:34:57,908 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 188 states, 145 states have (on average 1.3103448275862069) internal successors, (190), 145 states have internal predecessors, (190), 40 states have call successors, (40), 2 states have call predecessors, (40), 2 states have return successors, (40), 40 states have call predecessors, (40), 40 states have call successors, (40) [2023-12-16 04:34:57,909 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 188 states to 188 states and 270 transitions. [2023-12-16 04:34:57,909 INFO L78 Accepts]: Start accepts. Automaton has 188 states and 270 transitions. Word has length 153 [2023-12-16 04:34:57,909 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-16 04:34:57,909 INFO L495 AbstractCegarLoop]: Abstraction has 188 states and 270 transitions. [2023-12-16 04:34:57,909 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 19 states, 18 states have (on average 3.111111111111111) internal successors, (56), 19 states have internal predecessors, (56), 3 states have call successors, (20), 1 states have call predecessors, (20), 1 states have return successors, (20), 2 states have call predecessors, (20), 3 states have call successors, (20) [2023-12-16 04:34:57,909 INFO L276 IsEmpty]: Start isEmpty. Operand 188 states and 270 transitions. [2023-12-16 04:34:57,910 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 155 [2023-12-16 04:34:57,910 INFO L187 NwaCegarLoop]: Found error trace [2023-12-16 04:34:57,910 INFO L195 NwaCegarLoop]: trace histogram [20, 20, 20, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 04:34:57,910 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2023-12-16 04:34:57,911 INFO L420 AbstractCegarLoop]: === Iteration 6 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-16 04:34:57,911 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-16 04:34:57,911 INFO L85 PathProgramCache]: Analyzing trace with hash 2105566481, now seen corresponding path program 1 times [2023-12-16 04:34:57,911 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-12-16 04:34:57,911 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [653099476] [2023-12-16 04:34:57,911 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-16 04:34:57,911 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-16 04:34:57,932 ERROR L246 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2023-12-16 04:34:57,932 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [167310923] [2023-12-16 04:34:57,932 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-16 04:34:57,932 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-12-16 04:34:57,933 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-12-16 04:34:57,945 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 04:34:57,949 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 04:34:58,182 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 04:34:58,188 INFO L262 TraceCheckSpWp]: Trace formula consists of 562 conjuncts, 123 conjunts are in the unsatisfiable core [2023-12-16 04:34:58,203 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-16 04:34:58,344 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 15 treesize of output 1 [2023-12-16 04:34:59,075 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 25 treesize of output 13 [2023-12-16 04:34:59,616 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 25 treesize of output 13 [2023-12-16 04:35:00,224 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 25 treesize of output 13 [2023-12-16 04:35:01,124 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 3 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 34 treesize of output 25 [2023-12-16 04:35:01,875 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 3 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 34 treesize of output 25 [2023-12-16 04:35:02,531 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 3 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 34 treesize of output 25 [2023-12-16 04:35:03,216 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 3 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 34 treesize of output 25 [2023-12-16 04:35:04,218 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 3 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 34 treesize of output 25 [2023-12-16 04:35:04,904 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 3 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 34 treesize of output 25 [2023-12-16 04:35:05,880 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 3 select indices, 3 select index equivalence classes, 6 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 0 case distinctions, treesize of input 59 treesize of output 52 [2023-12-16 04:35:06,024 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-12-16 04:35:06,025 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-12-16 04:35:06,025 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-12-16 04:35:06,026 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-12-16 04:35:06,027 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 4 select indices, 4 select index equivalence classes, 10 disjoint index pairs (out of 6 index pairs), introduced 4 new quantified variables, introduced 0 case distinctions, treesize of input 70 treesize of output 55 [2023-12-16 04:35:06,173 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 4 select indices, 4 select index equivalence classes, 10 disjoint index pairs (out of 6 index pairs), introduced 4 new quantified variables, introduced 0 case distinctions, treesize of input 66 treesize of output 62 [2023-12-16 04:35:06,281 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-12-16 04:35:06,282 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-12-16 04:35:06,282 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-12-16 04:35:06,283 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-12-16 04:35:06,284 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-12-16 04:35:06,288 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 5 select indices, 5 select index equivalence classes, 15 disjoint index pairs (out of 10 index pairs), introduced 5 new quantified variables, introduced 0 case distinctions, treesize of input 77 treesize of output 65 [2023-12-16 04:35:06,662 INFO L349 Elim1Store]: treesize reduction 32, result has 52.2 percent of original size [2023-12-16 04:35:06,662 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 3 select indices, 3 select index equivalence classes, 0 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 5 case distinctions, treesize of input 178 treesize of output 166 [2023-12-16 04:35:06,814 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-12-16 04:35:06,815 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-12-16 04:35:06,817 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-12-16 04:35:06,817 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-12-16 04:35:06,839 INFO L349 Elim1Store]: treesize reduction 58, result has 13.4 percent of original size [2023-12-16 04:35:06,841 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 2 stores, 5 select indices, 5 select index equivalence classes, 14 disjoint index pairs (out of 10 index pairs), introduced 7 new quantified variables, introduced 2 case distinctions, treesize of input 132 treesize of output 175 [2023-12-16 04:35:06,895 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-12-16 04:35:06,896 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-12-16 04:35:06,896 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-12-16 04:35:06,897 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-12-16 04:35:06,902 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 5 select indices, 5 select index equivalence classes, 10 disjoint index pairs (out of 10 index pairs), introduced 5 new quantified variables, introduced 0 case distinctions, treesize of input 95 treesize of output 67 [2023-12-16 04:35:07,515 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-12-16 04:35:07,516 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-12-16 04:35:07,517 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-12-16 04:35:07,518 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-12-16 04:35:07,622 INFO L349 Elim1Store]: treesize reduction 223, result has 18.9 percent of original size [2023-12-16 04:35:07,622 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 2 stores, 7 select indices, 7 select index equivalence classes, 14 disjoint index pairs (out of 21 index pairs), introduced 9 new quantified variables, introduced 17 case distinctions, treesize of input 132 treesize of output 209 [2023-12-16 04:35:07,780 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-12-16 04:35:07,782 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-12-16 04:35:07,782 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-12-16 04:35:07,783 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-12-16 04:35:07,821 INFO L349 Elim1Store]: treesize reduction 44, result has 29.0 percent of original size [2023-12-16 04:35:07,822 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 6 select indices, 6 select index equivalence classes, 10 disjoint index pairs (out of 15 index pairs), introduced 6 new quantified variables, introduced 6 case distinctions, treesize of input 97 treesize of output 88 [2023-12-16 04:35:12,311 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-12-16 04:35:12,312 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-12-16 04:35:12,313 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-12-16 04:35:12,314 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-12-16 04:35:12,410 INFO L349 Elim1Store]: treesize reduction 235, result has 18.1 percent of original size [2023-12-16 04:35:12,410 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 2 stores, 7 select indices, 7 select index equivalence classes, 14 disjoint index pairs (out of 21 index pairs), introduced 9 new quantified variables, introduced 17 case distinctions, treesize of input 148 treesize of output 225 [2023-12-16 04:35:12,728 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-12-16 04:35:12,729 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-12-16 04:35:12,730 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-12-16 04:35:12,777 INFO L349 Elim1Store]: treesize reduction 64, result has 37.9 percent of original size [2023-12-16 04:35:12,777 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 6 select indices, 6 select index equivalence classes, 9 disjoint index pairs (out of 15 index pairs), introduced 6 new quantified variables, introduced 8 case distinctions, treesize of input 91 treesize of output 120 [2023-12-16 04:35:23,214 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-12-16 04:35:23,215 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-12-16 04:35:23,217 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-12-16 04:35:23,217 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-12-16 04:35:23,538 INFO L349 Elim1Store]: treesize reduction 373, result has 25.3 percent of original size [2023-12-16 04:35:23,538 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 2 stores, 9 select indices, 9 select index equivalence classes, 14 disjoint index pairs (out of 36 index pairs), introduced 11 new quantified variables, introduced 36 case distinctions, treesize of input 132 treesize of output 275 [2023-12-16 04:35:23,716 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-12-16 04:35:23,717 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-12-16 04:35:23,719 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-12-16 04:35:23,720 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-12-16 04:35:23,798 INFO L349 Elim1Store]: treesize reduction 96, result has 26.7 percent of original size [2023-12-16 04:35:23,799 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 7 select indices, 7 select index equivalence classes, 10 disjoint index pairs (out of 21 index pairs), introduced 7 new quantified variables, introduced 13 case distinctions, treesize of input 79 treesize of output 96 Received shutdown request... [2023-12-16 04:35:43,232 INFO L805 garLoopResultBuilder]: Registering result TIMEOUT for location ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION (0 of 1 remaining) [2023-12-16 04:35:43,269 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 04:35:43,270 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 04:35:43,270 WARN L340 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Timeout while monitored process is still running, waiting 1000 ms for graceful end [2023-12-16 04:35:43,433 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,SelfDestructingSolverStorable5 [2023-12-16 04:35:43,434 WARN L619 AbstractCegarLoop]: Verification canceled: while NwaCegarLoop was analyzing trace of length 155 with TraceHistMax 20,while TraceCheckSpWp was constructing forward predicates,while PolyPacSimplificationTermWalker was simplifying a ATOM-1 term,while PolyPacSimplificationTermWalker was simplifying 2 xjuncts wrt. a ∧-24-13-2-1 context. [2023-12-16 04:35:43,438 INFO L445 BasicCegarLoop]: Path program histogram: [1, 1, 1, 1, 1, 1] [2023-12-16 04:35:43,440 INFO L179 ceAbstractionStarter]: Computing trace abstraction results [2023-12-16 04:35:43,442 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 16.12 04:35:43 BoogieIcfgContainer [2023-12-16 04:35:43,442 INFO L131 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2023-12-16 04:35:43,442 INFO L158 Benchmark]: Toolchain (without parser) took 62488.03ms. Allocated memory was 271.6MB in the beginning and 858.8MB in the end (delta: 587.2MB). Free memory was 219.5MB in the beginning and 668.6MB in the end (delta: -449.0MB). Peak memory consumption was 512.3MB. Max. memory is 8.0GB. [2023-12-16 04:35:43,442 INFO L158 Benchmark]: CDTParser took 0.13ms. Allocated memory is still 203.4MB. Free memory was 152.0MB in the beginning and 151.9MB in the end (delta: 137.9kB). There was no memory consumed. Max. memory is 8.0GB. [2023-12-16 04:35:43,442 INFO L158 Benchmark]: CACSL2BoogieTranslator took 262.01ms. Allocated memory is still 271.6MB. Free memory was 219.2MB in the beginning and 203.2MB in the end (delta: 16.0MB). Peak memory consumption was 15.7MB. Max. memory is 8.0GB. [2023-12-16 04:35:43,443 INFO L158 Benchmark]: Boogie Procedure Inliner took 71.88ms. Allocated memory is still 271.6MB. Free memory was 203.2MB in the beginning and 198.6MB in the end (delta: 4.6MB). Peak memory consumption was 5.2MB. Max. memory is 8.0GB. [2023-12-16 04:35:43,443 INFO L158 Benchmark]: Boogie Preprocessor took 82.93ms. Allocated memory is still 271.6MB. Free memory was 198.6MB in the beginning and 193.6MB in the end (delta: 4.9MB). Peak memory consumption was 4.2MB. Max. memory is 8.0GB. [2023-12-16 04:35:43,443 INFO L158 Benchmark]: RCFGBuilder took 564.07ms. Allocated memory is still 271.6MB. Free memory was 193.6MB in the beginning and 220.7MB in the end (delta: -27.1MB). Peak memory consumption was 27.4MB. Max. memory is 8.0GB. [2023-12-16 04:35:43,443 INFO L158 Benchmark]: TraceAbstraction took 61500.90ms. Allocated memory was 271.6MB in the beginning and 858.8MB in the end (delta: 587.2MB). Free memory was 219.7MB in the beginning and 668.6MB in the end (delta: -448.9MB). Peak memory consumption was 512.1MB. Max. memory is 8.0GB. [2023-12-16 04:35:43,451 INFO L338 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.13ms. Allocated memory is still 203.4MB. Free memory was 152.0MB in the beginning and 151.9MB in the end (delta: 137.9kB). There was no memory consumed. Max. memory is 8.0GB. * CACSL2BoogieTranslator took 262.01ms. Allocated memory is still 271.6MB. Free memory was 219.2MB in the beginning and 203.2MB in the end (delta: 16.0MB). Peak memory consumption was 15.7MB. Max. memory is 8.0GB. * Boogie Procedure Inliner took 71.88ms. Allocated memory is still 271.6MB. Free memory was 203.2MB in the beginning and 198.6MB in the end (delta: 4.6MB). Peak memory consumption was 5.2MB. Max. memory is 8.0GB. * Boogie Preprocessor took 82.93ms. Allocated memory is still 271.6MB. Free memory was 198.6MB in the beginning and 193.6MB in the end (delta: 4.9MB). Peak memory consumption was 4.2MB. Max. memory is 8.0GB. * RCFGBuilder took 564.07ms. Allocated memory is still 271.6MB. Free memory was 193.6MB in the beginning and 220.7MB in the end (delta: -27.1MB). Peak memory consumption was 27.4MB. Max. memory is 8.0GB. * TraceAbstraction took 61500.90ms. Allocated memory was 271.6MB in the beginning and 858.8MB in the end (delta: 587.2MB). Free memory was 219.7MB in the beginning and 668.6MB in the end (delta: -448.9MB). Peak memory consumption was 512.1MB. Max. memory is 8.0GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - StatisticsResult: ErrorAutomatonStatistics NumberErrorTraces: 0, NumberStatementsAllTraces: 0, NumberRelevantStatements: 0, 0.0s ErrorAutomatonConstructionTimeTotal, 0.0s FaulLocalizationTime, NumberStatementsFirstTrace: -1, TraceLengthAvg: 0, 0.0s ErrorAutomatonConstructionTimeAvg, 0.0s ErrorAutomatonDifferenceTimeAvg, 0.0s ErrorAutomatonDifferenceTimeTotal, NumberOfNoEnhancement: 0, NumberOfFiniteEnhancement: 0, NumberOfInfiniteEnhancement: 0 - TimeoutResultAtElement [Line: 19]: Timeout (TraceAbstraction) Unable to prove that a call to reach_error is unreachable (line 19). Cancelled while NwaCegarLoop was analyzing trace of length 155 with TraceHistMax 20,while TraceCheckSpWp was constructing forward predicates,while PolyPacSimplificationTermWalker was simplifying a ATOM-1 term,while PolyPacSimplificationTermWalker was simplifying 2 xjuncts wrt. a ∧-24-13-2-1 context. - StatisticsResult: Ultimate Automizer benchmark data CFG has 2 procedures, 96 locations, 1 error locations. Started 1 CEGAR loops. OverallTime: 61.4s, OverallIterations: 6, TraceHistogramMax: 20, PathProgramHistogramMax: 1, EmptinessCheckTime: 0.0s, AutomataDifference: 6.2s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 1222 SdHoareTripleChecker+Valid, 2.6s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 1220 mSDsluCounter, 2731 SdHoareTripleChecker+Invalid, 2.3s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 2179 mSDsCounter, 133 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 3174 IncrementalHoareTripleChecker+Invalid, 3307 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 133 mSolverCounterUnsat, 552 mSDtfsCounter, 3174 mSolverCounterSat, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown, PredicateUnifierStatistics: 0 DeclaredPredicates, 331 GetRequests, 250 SyntacticMatches, 1 SemanticMatches, 80 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 505 ImplicationChecksByTransitivity, 4.4s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=188occurred in iteration=5, InterpolantAutomatonStates: 58, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: 0.1s AutomataMinimizationTime, 5 MinimizatonAttempts, 250 StatesRemovedByMinimization, 4 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.0s SsaConstructionTime, 0.4s SatisfiabilityAnalysisTime, 8.8s InterpolantComputationTime, 741 NumberOfCodeBlocks, 741 NumberOfCodeBlocksAsserted, 5 NumberOfCheckSat, 736 ConstructedInterpolants, 0 QuantifiedInterpolants, 10653 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 5 InterpolantComputations, 5 PerfectInterpolantSequences, 3800/3800 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