java -Xmx8000000000 -Xss4m -jar ./plugins/org.eclipse.equinox.launcher_1.3.100.v20150511-1540.jar -data @noDefault -ultimatedata ./data -tc ../../../trunk/examples/toolchains/AutomizerC.xml -s ../../../trunk/examples/settings/default/automizer/svcomp-Reach-32bit-Automizer_Default.epf --abstractinterpretationv2.abstract.domain IntervalDomain --traceabstraction.trace.refinement.strategy TAIPAN --traceabstraction.abstract.interpretation.mode USE_PREDICATES -i ../../../trunk/examples/svcomp/forester-heap/sll-rb-cnstr_1-1.i -------------------------------------------------------------------------------- This is Ultimate 0.1.24-f4eb214f-m [2019-10-13 20:12:14,955 INFO L177 SettingsManager]: Resetting all preferences to default values... [2019-10-13 20:12:14,957 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2019-10-13 20:12:14,977 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2019-10-13 20:12:14,978 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2019-10-13 20:12:14,980 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2019-10-13 20:12:14,982 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2019-10-13 20:12:14,991 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2019-10-13 20:12:14,993 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2019-10-13 20:12:14,994 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2019-10-13 20:12:14,996 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2019-10-13 20:12:14,997 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2019-10-13 20:12:14,998 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2019-10-13 20:12:15,001 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2019-10-13 20:12:15,003 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2019-10-13 20:12:15,004 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2019-10-13 20:12:15,006 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2019-10-13 20:12:15,008 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2019-10-13 20:12:15,010 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2019-10-13 20:12:15,014 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2019-10-13 20:12:15,018 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2019-10-13 20:12:15,022 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2019-10-13 20:12:15,024 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2019-10-13 20:12:15,025 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2019-10-13 20:12:15,027 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2019-10-13 20:12:15,027 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2019-10-13 20:12:15,027 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2019-10-13 20:12:15,028 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2019-10-13 20:12:15,028 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2019-10-13 20:12:15,029 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2019-10-13 20:12:15,029 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2019-10-13 20:12:15,030 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2019-10-13 20:12:15,031 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2019-10-13 20:12:15,032 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2019-10-13 20:12:15,032 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2019-10-13 20:12:15,033 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2019-10-13 20:12:15,033 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2019-10-13 20:12:15,034 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2019-10-13 20:12:15,034 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2019-10-13 20:12:15,034 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2019-10-13 20:12:15,035 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2019-10-13 20:12:15,036 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/settings/default/automizer/svcomp-Reach-32bit-Automizer_Default.epf [2019-10-13 20:12:15,066 INFO L113 SettingsManager]: Loading preferences was successful [2019-10-13 20:12:15,066 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2019-10-13 20:12:15,071 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2019-10-13 20:12:15,071 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2019-10-13 20:12:15,071 INFO L138 SettingsManager]: * Use SBE=true [2019-10-13 20:12:15,071 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2019-10-13 20:12:15,072 INFO L138 SettingsManager]: * sizeof long=4 [2019-10-13 20:12:15,072 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2019-10-13 20:12:15,074 INFO L138 SettingsManager]: * sizeof POINTER=4 [2019-10-13 20:12:15,074 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2019-10-13 20:12:15,075 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2019-10-13 20:12:15,075 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2019-10-13 20:12:15,075 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2019-10-13 20:12:15,075 INFO L138 SettingsManager]: * sizeof long double=12 [2019-10-13 20:12:15,075 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2019-10-13 20:12:15,076 INFO L138 SettingsManager]: * Use constant arrays=true [2019-10-13 20:12:15,076 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2019-10-13 20:12:15,076 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2019-10-13 20:12:15,076 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2019-10-13 20:12:15,076 INFO L138 SettingsManager]: * To the following directory=./dump/ [2019-10-13 20:12:15,077 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2019-10-13 20:12:15,077 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2019-10-13 20:12:15,077 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2019-10-13 20:12:15,081 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2019-10-13 20:12:15,082 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2019-10-13 20:12:15,082 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2019-10-13 20:12:15,082 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2019-10-13 20:12:15,082 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2019-10-13 20:12:15,082 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.analysis.abstractinterpretationv2: Abstract domain -> IntervalDomain Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Trace refinement strategy -> TAIPAN Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Abstract interpretation Mode -> USE_PREDICATES [2019-10-13 20:12:15,341 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2019-10-13 20:12:15,354 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2019-10-13 20:12:15,358 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2019-10-13 20:12:15,359 INFO L271 PluginConnector]: Initializing CDTParser... [2019-10-13 20:12:15,360 INFO L275 PluginConnector]: CDTParser initialized [2019-10-13 20:12:15,361 INFO L428 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/forester-heap/sll-rb-cnstr_1-1.i [2019-10-13 20:12:15,438 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/565e9c01b/c46d707d153a4b07ad5c7c4a7925d7e9/FLAG885a94d9b [2019-10-13 20:12:15,993 INFO L306 CDTParser]: Found 1 translation units. [2019-10-13 20:12:15,995 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/forester-heap/sll-rb-cnstr_1-1.i [2019-10-13 20:12:16,009 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/565e9c01b/c46d707d153a4b07ad5c7c4a7925d7e9/FLAG885a94d9b [2019-10-13 20:12:16,305 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/565e9c01b/c46d707d153a4b07ad5c7c4a7925d7e9 [2019-10-13 20:12:16,317 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2019-10-13 20:12:16,319 INFO L131 ToolchainWalker]: Walking toolchain with 4 elements. [2019-10-13 20:12:16,319 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2019-10-13 20:12:16,320 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2019-10-13 20:12:16,322 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2019-10-13 20:12:16,323 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 13.10 08:12:16" (1/1) ... [2019-10-13 20:12:16,325 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@4b36d77d and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 08:12:16, skipping insertion in model container [2019-10-13 20:12:16,325 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 13.10 08:12:16" (1/1) ... [2019-10-13 20:12:16,333 INFO L142 MainTranslator]: Starting translation in SV-COMP mode [2019-10-13 20:12:16,379 INFO L173 MainTranslator]: Built tables and reachable declarations [2019-10-13 20:12:16,790 INFO L206 PostProcessor]: Analyzing one entry point: main [2019-10-13 20:12:16,801 INFO L188 MainTranslator]: Completed pre-run [2019-10-13 20:12:16,847 INFO L206 PostProcessor]: Analyzing one entry point: main [2019-10-13 20:12:16,906 INFO L192 MainTranslator]: Completed translation [2019-10-13 20:12:16,906 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 08:12:16 WrapperNode [2019-10-13 20:12:16,907 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2019-10-13 20:12:16,907 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2019-10-13 20:12:16,908 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2019-10-13 20:12:16,908 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2019-10-13 20:12:16,923 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 08:12:16" (1/1) ... [2019-10-13 20:12:16,923 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 08:12:16" (1/1) ... [2019-10-13 20:12:16,940 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 08:12:16" (1/1) ... [2019-10-13 20:12:16,940 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 08:12:16" (1/1) ... [2019-10-13 20:12:16,955 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 08:12:16" (1/1) ... [2019-10-13 20:12:16,968 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 08:12:16" (1/1) ... [2019-10-13 20:12:16,972 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 08:12:16" (1/1) ... [2019-10-13 20:12:16,978 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2019-10-13 20:12:16,979 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2019-10-13 20:12:16,979 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2019-10-13 20:12:16,979 INFO L275 PluginConnector]: RCFGBuilder initialized [2019-10-13 20:12:16,980 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 08:12:16" (1/1) ... No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2019-10-13 20:12:17,034 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2019-10-13 20:12:17,034 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2019-10-13 20:12:17,034 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2019-10-13 20:12:17,034 INFO L130 BoogieDeclarations]: Found specification of procedure __ctype_get_mb_cur_max [2019-10-13 20:12:17,034 INFO L130 BoogieDeclarations]: Found specification of procedure atof [2019-10-13 20:12:17,035 INFO L130 BoogieDeclarations]: Found specification of procedure atoi [2019-10-13 20:12:17,035 INFO L130 BoogieDeclarations]: Found specification of procedure atol [2019-10-13 20:12:17,035 INFO L130 BoogieDeclarations]: Found specification of procedure atoll [2019-10-13 20:12:17,035 INFO L130 BoogieDeclarations]: Found specification of procedure strtod [2019-10-13 20:12:17,035 INFO L130 BoogieDeclarations]: Found specification of procedure strtof [2019-10-13 20:12:17,035 INFO L130 BoogieDeclarations]: Found specification of procedure strtold [2019-10-13 20:12:17,036 INFO L130 BoogieDeclarations]: Found specification of procedure strtol [2019-10-13 20:12:17,036 INFO L130 BoogieDeclarations]: Found specification of procedure strtoul [2019-10-13 20:12:17,036 INFO L130 BoogieDeclarations]: Found specification of procedure strtoq [2019-10-13 20:12:17,036 INFO L130 BoogieDeclarations]: Found specification of procedure strtouq [2019-10-13 20:12:17,036 INFO L130 BoogieDeclarations]: Found specification of procedure strtoll [2019-10-13 20:12:17,037 INFO L130 BoogieDeclarations]: Found specification of procedure strtoull [2019-10-13 20:12:17,037 INFO L130 BoogieDeclarations]: Found specification of procedure l64a [2019-10-13 20:12:17,037 INFO L130 BoogieDeclarations]: Found specification of procedure a64l [2019-10-13 20:12:17,037 INFO L130 BoogieDeclarations]: Found specification of procedure select [2019-10-13 20:12:17,037 INFO L130 BoogieDeclarations]: Found specification of procedure pselect [2019-10-13 20:12:17,037 INFO L130 BoogieDeclarations]: Found specification of procedure gnu_dev_major [2019-10-13 20:12:17,038 INFO L130 BoogieDeclarations]: Found specification of procedure gnu_dev_minor [2019-10-13 20:12:17,038 INFO L130 BoogieDeclarations]: Found specification of procedure gnu_dev_makedev [2019-10-13 20:12:17,038 INFO L130 BoogieDeclarations]: Found specification of procedure random [2019-10-13 20:12:17,038 INFO L130 BoogieDeclarations]: Found specification of procedure srandom [2019-10-13 20:12:17,038 INFO L130 BoogieDeclarations]: Found specification of procedure initstate [2019-10-13 20:12:17,038 INFO L130 BoogieDeclarations]: Found specification of procedure setstate [2019-10-13 20:12:17,039 INFO L130 BoogieDeclarations]: Found specification of procedure random_r [2019-10-13 20:12:17,039 INFO L130 BoogieDeclarations]: Found specification of procedure srandom_r [2019-10-13 20:12:17,039 INFO L130 BoogieDeclarations]: Found specification of procedure initstate_r [2019-10-13 20:12:17,039 INFO L130 BoogieDeclarations]: Found specification of procedure setstate_r [2019-10-13 20:12:17,039 INFO L130 BoogieDeclarations]: Found specification of procedure rand [2019-10-13 20:12:17,039 INFO L130 BoogieDeclarations]: Found specification of procedure srand [2019-10-13 20:12:17,040 INFO L130 BoogieDeclarations]: Found specification of procedure rand_r [2019-10-13 20:12:17,040 INFO L130 BoogieDeclarations]: Found specification of procedure drand48 [2019-10-13 20:12:17,040 INFO L130 BoogieDeclarations]: Found specification of procedure erand48 [2019-10-13 20:12:17,040 INFO L130 BoogieDeclarations]: Found specification of procedure lrand48 [2019-10-13 20:12:17,040 INFO L130 BoogieDeclarations]: Found specification of procedure nrand48 [2019-10-13 20:12:17,041 INFO L130 BoogieDeclarations]: Found specification of procedure mrand48 [2019-10-13 20:12:17,041 INFO L130 BoogieDeclarations]: Found specification of procedure jrand48 [2019-10-13 20:12:17,041 INFO L130 BoogieDeclarations]: Found specification of procedure srand48 [2019-10-13 20:12:17,041 INFO L130 BoogieDeclarations]: Found specification of procedure seed48 [2019-10-13 20:12:17,041 INFO L130 BoogieDeclarations]: Found specification of procedure lcong48 [2019-10-13 20:12:17,041 INFO L130 BoogieDeclarations]: Found specification of procedure drand48_r [2019-10-13 20:12:17,041 INFO L130 BoogieDeclarations]: Found specification of procedure erand48_r [2019-10-13 20:12:17,042 INFO L130 BoogieDeclarations]: Found specification of procedure lrand48_r [2019-10-13 20:12:17,042 INFO L130 BoogieDeclarations]: Found specification of procedure nrand48_r [2019-10-13 20:12:17,042 INFO L130 BoogieDeclarations]: Found specification of procedure mrand48_r [2019-10-13 20:12:17,042 INFO L130 BoogieDeclarations]: Found specification of procedure jrand48_r [2019-10-13 20:12:17,042 INFO L130 BoogieDeclarations]: Found specification of procedure srand48_r [2019-10-13 20:12:17,042 INFO L130 BoogieDeclarations]: Found specification of procedure seed48_r [2019-10-13 20:12:17,042 INFO L130 BoogieDeclarations]: Found specification of procedure lcong48_r [2019-10-13 20:12:17,043 INFO L130 BoogieDeclarations]: Found specification of procedure malloc [2019-10-13 20:12:17,043 INFO L130 BoogieDeclarations]: Found specification of procedure calloc [2019-10-13 20:12:17,043 INFO L130 BoogieDeclarations]: Found specification of procedure realloc [2019-10-13 20:12:17,043 INFO L130 BoogieDeclarations]: Found specification of procedure free [2019-10-13 20:12:17,043 INFO L130 BoogieDeclarations]: Found specification of procedure cfree [2019-10-13 20:12:17,043 INFO L130 BoogieDeclarations]: Found specification of procedure alloca [2019-10-13 20:12:17,043 INFO L130 BoogieDeclarations]: Found specification of procedure valloc [2019-10-13 20:12:17,044 INFO L130 BoogieDeclarations]: Found specification of procedure posix_memalign [2019-10-13 20:12:17,044 INFO L130 BoogieDeclarations]: Found specification of procedure aligned_alloc [2019-10-13 20:12:17,044 INFO L130 BoogieDeclarations]: Found specification of procedure abort [2019-10-13 20:12:17,044 INFO L130 BoogieDeclarations]: Found specification of procedure atexit [2019-10-13 20:12:17,044 INFO L130 BoogieDeclarations]: Found specification of procedure at_quick_exit [2019-10-13 20:12:17,045 INFO L130 BoogieDeclarations]: Found specification of procedure on_exit [2019-10-13 20:12:17,045 INFO L130 BoogieDeclarations]: Found specification of procedure exit [2019-10-13 20:12:17,045 INFO L130 BoogieDeclarations]: Found specification of procedure quick_exit [2019-10-13 20:12:17,045 INFO L130 BoogieDeclarations]: Found specification of procedure _Exit [2019-10-13 20:12:17,045 INFO L130 BoogieDeclarations]: Found specification of procedure getenv [2019-10-13 20:12:17,045 INFO L130 BoogieDeclarations]: Found specification of procedure putenv [2019-10-13 20:12:17,045 INFO L130 BoogieDeclarations]: Found specification of procedure setenv [2019-10-13 20:12:17,046 INFO L130 BoogieDeclarations]: Found specification of procedure unsetenv [2019-10-13 20:12:17,046 INFO L130 BoogieDeclarations]: Found specification of procedure clearenv [2019-10-13 20:12:17,046 INFO L130 BoogieDeclarations]: Found specification of procedure mktemp [2019-10-13 20:12:17,046 INFO L130 BoogieDeclarations]: Found specification of procedure mkstemp [2019-10-13 20:12:17,046 INFO L130 BoogieDeclarations]: Found specification of procedure mkstemps [2019-10-13 20:12:17,046 INFO L130 BoogieDeclarations]: Found specification of procedure mkdtemp [2019-10-13 20:12:17,047 INFO L130 BoogieDeclarations]: Found specification of procedure system [2019-10-13 20:12:17,047 INFO L130 BoogieDeclarations]: Found specification of procedure realpath [2019-10-13 20:12:17,047 INFO L130 BoogieDeclarations]: Found specification of procedure bsearch [2019-10-13 20:12:17,047 INFO L130 BoogieDeclarations]: Found specification of procedure qsort [2019-10-13 20:12:17,047 INFO L130 BoogieDeclarations]: Found specification of procedure abs [2019-10-13 20:12:17,047 INFO L130 BoogieDeclarations]: Found specification of procedure labs [2019-10-13 20:12:17,048 INFO L130 BoogieDeclarations]: Found specification of procedure llabs [2019-10-13 20:12:17,048 INFO L130 BoogieDeclarations]: Found specification of procedure div [2019-10-13 20:12:17,048 INFO L130 BoogieDeclarations]: Found specification of procedure ldiv [2019-10-13 20:12:17,048 INFO L130 BoogieDeclarations]: Found specification of procedure lldiv [2019-10-13 20:12:17,048 INFO L130 BoogieDeclarations]: Found specification of procedure ecvt [2019-10-13 20:12:17,048 INFO L130 BoogieDeclarations]: Found specification of procedure fcvt [2019-10-13 20:12:17,048 INFO L130 BoogieDeclarations]: Found specification of procedure gcvt [2019-10-13 20:12:17,049 INFO L130 BoogieDeclarations]: Found specification of procedure qecvt [2019-10-13 20:12:17,049 INFO L130 BoogieDeclarations]: Found specification of procedure qfcvt [2019-10-13 20:12:17,049 INFO L130 BoogieDeclarations]: Found specification of procedure qgcvt [2019-10-13 20:12:17,049 INFO L130 BoogieDeclarations]: Found specification of procedure ecvt_r [2019-10-13 20:12:17,049 INFO L130 BoogieDeclarations]: Found specification of procedure fcvt_r [2019-10-13 20:12:17,049 INFO L130 BoogieDeclarations]: Found specification of procedure qecvt_r [2019-10-13 20:12:17,049 INFO L130 BoogieDeclarations]: Found specification of procedure qfcvt_r [2019-10-13 20:12:17,050 INFO L130 BoogieDeclarations]: Found specification of procedure mblen [2019-10-13 20:12:17,050 INFO L130 BoogieDeclarations]: Found specification of procedure mbtowc [2019-10-13 20:12:17,050 INFO L130 BoogieDeclarations]: Found specification of procedure wctomb [2019-10-13 20:12:17,050 INFO L130 BoogieDeclarations]: Found specification of procedure mbstowcs [2019-10-13 20:12:17,050 INFO L130 BoogieDeclarations]: Found specification of procedure wcstombs [2019-10-13 20:12:17,050 INFO L130 BoogieDeclarations]: Found specification of procedure rpmatch [2019-10-13 20:12:17,050 INFO L130 BoogieDeclarations]: Found specification of procedure getsubopt [2019-10-13 20:12:17,051 INFO L130 BoogieDeclarations]: Found specification of procedure getloadavg [2019-10-13 20:12:17,051 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_int [2019-10-13 20:12:17,051 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_error [2019-10-13 20:12:17,051 INFO L130 BoogieDeclarations]: Found specification of procedure main [2019-10-13 20:12:17,051 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2019-10-13 20:12:17,051 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2019-10-13 20:12:17,051 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2019-10-13 20:12:17,052 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2019-10-13 20:12:17,052 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2019-10-13 20:12:17,052 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2019-10-13 20:12:17,052 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2019-10-13 20:12:17,052 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2019-10-13 20:12:17,620 INFO L279 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2019-10-13 20:12:17,620 INFO L284 CfgBuilder]: Removed 11 assume(true) statements. [2019-10-13 20:12:17,621 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 13.10 08:12:17 BoogieIcfgContainer [2019-10-13 20:12:17,622 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2019-10-13 20:12:17,623 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2019-10-13 20:12:17,623 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2019-10-13 20:12:17,626 INFO L275 PluginConnector]: TraceAbstraction initialized [2019-10-13 20:12:17,627 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 13.10 08:12:16" (1/3) ... [2019-10-13 20:12:17,628 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@7cd57e5a and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 13.10 08:12:17, skipping insertion in model container [2019-10-13 20:12:17,628 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 08:12:16" (2/3) ... [2019-10-13 20:12:17,628 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@7cd57e5a and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 13.10 08:12:17, skipping insertion in model container [2019-10-13 20:12:17,629 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 13.10 08:12:17" (3/3) ... [2019-10-13 20:12:17,630 INFO L109 eAbstractionObserver]: Analyzing ICFG sll-rb-cnstr_1-1.i [2019-10-13 20:12:17,641 INFO L152 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2019-10-13 20:12:17,650 INFO L164 ceAbstractionStarter]: Appying trace abstraction to program that has 4 error locations. [2019-10-13 20:12:17,662 INFO L249 AbstractCegarLoop]: Starting to check reachability of 4 error locations. [2019-10-13 20:12:17,689 INFO L373 AbstractCegarLoop]: Interprodecural is true [2019-10-13 20:12:17,689 INFO L374 AbstractCegarLoop]: Hoare is true [2019-10-13 20:12:17,689 INFO L375 AbstractCegarLoop]: Compute interpolants for FPandBP [2019-10-13 20:12:17,690 INFO L376 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2019-10-13 20:12:17,690 INFO L377 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2019-10-13 20:12:17,690 INFO L378 AbstractCegarLoop]: Difference is false [2019-10-13 20:12:17,690 INFO L379 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2019-10-13 20:12:17,691 INFO L383 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2019-10-13 20:12:17,710 INFO L276 IsEmpty]: Start isEmpty. Operand 38 states. [2019-10-13 20:12:17,717 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 11 [2019-10-13 20:12:17,717 INFO L372 BasicCegarLoop]: Found error trace [2019-10-13 20:12:17,719 INFO L380 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-10-13 20:12:17,721 INFO L410 AbstractCegarLoop]: === Iteration 1 === [mainErr2ASSERT_VIOLATIONERROR_FUNCTION, mainErr1ASSERT_VIOLATIONERROR_FUNCTION, mainErr0ASSERT_VIOLATIONERROR_FUNCTION, mainErr3ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-10-13 20:12:17,727 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-13 20:12:17,728 INFO L82 PathProgramCache]: Analyzing trace with hash -742552803, now seen corresponding path program 1 times [2019-10-13 20:12:17,738 INFO L157 tionRefinementEngine]: Executing refinement strategy TAIPAN [2019-10-13 20:12:17,738 INFO L342 tionRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [298949434] [2019-10-13 20:12:17,739 INFO L116 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-13 20:12:17,739 INFO L116 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-13 20:12:17,739 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-10-13 20:12:17,839 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-13 20:12:17,889 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-10-13 20:12:17,890 INFO L342 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [298949434] [2019-10-13 20:12:17,891 INFO L223 tionRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-10-13 20:12:17,891 INFO L236 tionRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2019-10-13 20:12:17,892 INFO L342 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1478063998] [2019-10-13 20:12:17,897 INFO L442 AbstractCegarLoop]: Interpolant automaton has 2 states [2019-10-13 20:12:17,899 INFO L137 tionRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy TAIPAN [2019-10-13 20:12:17,914 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2019-10-13 20:12:17,915 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2019-10-13 20:12:17,917 INFO L87 Difference]: Start difference. First operand 38 states. Second operand 2 states. [2019-10-13 20:12:17,941 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-10-13 20:12:17,942 INFO L93 Difference]: Finished difference Result 67 states and 104 transitions. [2019-10-13 20:12:17,942 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2019-10-13 20:12:17,943 INFO L78 Accepts]: Start accepts. Automaton has 2 states. Word has length 10 [2019-10-13 20:12:17,944 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-10-13 20:12:17,953 INFO L225 Difference]: With dead ends: 67 [2019-10-13 20:12:17,953 INFO L226 Difference]: Without dead ends: 31 [2019-10-13 20:12:17,956 INFO L600 BasicCegarLoop]: 0 DeclaredPredicates, 2 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 0 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2019-10-13 20:12:17,970 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 31 states. [2019-10-13 20:12:17,988 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 31 to 31. [2019-10-13 20:12:17,989 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 31 states. [2019-10-13 20:12:17,990 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 31 states to 31 states and 34 transitions. [2019-10-13 20:12:17,992 INFO L78 Accepts]: Start accepts. Automaton has 31 states and 34 transitions. Word has length 10 [2019-10-13 20:12:17,992 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-10-13 20:12:17,992 INFO L462 AbstractCegarLoop]: Abstraction has 31 states and 34 transitions. [2019-10-13 20:12:17,992 INFO L463 AbstractCegarLoop]: Interpolant automaton has 2 states. [2019-10-13 20:12:17,993 INFO L276 IsEmpty]: Start isEmpty. Operand 31 states and 34 transitions. [2019-10-13 20:12:17,993 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 12 [2019-10-13 20:12:17,993 INFO L372 BasicCegarLoop]: Found error trace [2019-10-13 20:12:17,993 INFO L380 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-10-13 20:12:17,994 INFO L410 AbstractCegarLoop]: === Iteration 2 === [mainErr2ASSERT_VIOLATIONERROR_FUNCTION, mainErr1ASSERT_VIOLATIONERROR_FUNCTION, mainErr0ASSERT_VIOLATIONERROR_FUNCTION, mainErr3ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-10-13 20:12:17,994 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-13 20:12:17,994 INFO L82 PathProgramCache]: Analyzing trace with hash -1556669446, now seen corresponding path program 1 times [2019-10-13 20:12:17,994 INFO L157 tionRefinementEngine]: Executing refinement strategy TAIPAN [2019-10-13 20:12:17,995 INFO L342 tionRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [766627698] [2019-10-13 20:12:17,995 INFO L116 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-13 20:12:17,995 INFO L116 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-13 20:12:17,995 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-10-13 20:12:18,015 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-13 20:12:18,126 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-10-13 20:12:18,126 INFO L342 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [766627698] [2019-10-13 20:12:18,126 INFO L223 tionRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-10-13 20:12:18,127 INFO L236 tionRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2019-10-13 20:12:18,127 INFO L342 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1391996451] [2019-10-13 20:12:18,128 INFO L442 AbstractCegarLoop]: Interpolant automaton has 4 states [2019-10-13 20:12:18,129 INFO L137 tionRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy TAIPAN [2019-10-13 20:12:18,129 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2019-10-13 20:12:18,130 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2019-10-13 20:12:18,130 INFO L87 Difference]: Start difference. First operand 31 states and 34 transitions. Second operand 4 states. [2019-10-13 20:12:18,248 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-10-13 20:12:18,248 INFO L93 Difference]: Finished difference Result 34 states and 38 transitions. [2019-10-13 20:12:18,249 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2019-10-13 20:12:18,249 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 11 [2019-10-13 20:12:18,249 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-10-13 20:12:18,250 INFO L225 Difference]: With dead ends: 34 [2019-10-13 20:12:18,250 INFO L226 Difference]: Without dead ends: 32 [2019-10-13 20:12:18,251 INFO L600 BasicCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2019-10-13 20:12:18,252 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 32 states. [2019-10-13 20:12:18,256 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 32 to 29. [2019-10-13 20:12:18,256 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 29 states. [2019-10-13 20:12:18,257 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 29 states to 29 states and 32 transitions. [2019-10-13 20:12:18,257 INFO L78 Accepts]: Start accepts. Automaton has 29 states and 32 transitions. Word has length 11 [2019-10-13 20:12:18,258 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-10-13 20:12:18,258 INFO L462 AbstractCegarLoop]: Abstraction has 29 states and 32 transitions. [2019-10-13 20:12:18,258 INFO L463 AbstractCegarLoop]: Interpolant automaton has 4 states. [2019-10-13 20:12:18,258 INFO L276 IsEmpty]: Start isEmpty. Operand 29 states and 32 transitions. [2019-10-13 20:12:18,259 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 15 [2019-10-13 20:12:18,259 INFO L372 BasicCegarLoop]: Found error trace [2019-10-13 20:12:18,259 INFO L380 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-10-13 20:12:18,259 INFO L410 AbstractCegarLoop]: === Iteration 3 === [mainErr2ASSERT_VIOLATIONERROR_FUNCTION, mainErr1ASSERT_VIOLATIONERROR_FUNCTION, mainErr0ASSERT_VIOLATIONERROR_FUNCTION, mainErr3ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-10-13 20:12:18,260 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-13 20:12:18,260 INFO L82 PathProgramCache]: Analyzing trace with hash -1973625457, now seen corresponding path program 1 times [2019-10-13 20:12:18,260 INFO L157 tionRefinementEngine]: Executing refinement strategy TAIPAN [2019-10-13 20:12:18,260 INFO L342 tionRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1039723048] [2019-10-13 20:12:18,261 INFO L116 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-13 20:12:18,261 INFO L116 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-13 20:12:18,261 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-10-13 20:12:18,282 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-13 20:12:18,385 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-10-13 20:12:18,386 INFO L342 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1039723048] [2019-10-13 20:12:18,386 INFO L223 tionRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-10-13 20:12:18,386 INFO L236 tionRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2019-10-13 20:12:18,387 INFO L342 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [760271932] [2019-10-13 20:12:18,387 INFO L442 AbstractCegarLoop]: Interpolant automaton has 5 states [2019-10-13 20:12:18,387 INFO L137 tionRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy TAIPAN [2019-10-13 20:12:18,388 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2019-10-13 20:12:18,388 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2019-10-13 20:12:18,388 INFO L87 Difference]: Start difference. First operand 29 states and 32 transitions. Second operand 5 states. [2019-10-13 20:12:18,493 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-10-13 20:12:18,494 INFO L93 Difference]: Finished difference Result 54 states and 60 transitions. [2019-10-13 20:12:18,494 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2019-10-13 20:12:18,494 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 14 [2019-10-13 20:12:18,495 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-10-13 20:12:18,496 INFO L225 Difference]: With dead ends: 54 [2019-10-13 20:12:18,496 INFO L226 Difference]: Without dead ends: 52 [2019-10-13 20:12:18,496 INFO L600 BasicCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 2 SyntacticMatches, 1 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=17, Invalid=25, Unknown=0, NotChecked=0, Total=42 [2019-10-13 20:12:18,497 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 52 states. [2019-10-13 20:12:18,505 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 52 to 36. [2019-10-13 20:12:18,505 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 36 states. [2019-10-13 20:12:18,508 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 36 states to 36 states and 40 transitions. [2019-10-13 20:12:18,509 INFO L78 Accepts]: Start accepts. Automaton has 36 states and 40 transitions. Word has length 14 [2019-10-13 20:12:18,509 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-10-13 20:12:18,509 INFO L462 AbstractCegarLoop]: Abstraction has 36 states and 40 transitions. [2019-10-13 20:12:18,509 INFO L463 AbstractCegarLoop]: Interpolant automaton has 5 states. [2019-10-13 20:12:18,509 INFO L276 IsEmpty]: Start isEmpty. Operand 36 states and 40 transitions. [2019-10-13 20:12:18,510 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 18 [2019-10-13 20:12:18,510 INFO L372 BasicCegarLoop]: Found error trace [2019-10-13 20:12:18,510 INFO L380 BasicCegarLoop]: trace histogram [2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-10-13 20:12:18,511 INFO L410 AbstractCegarLoop]: === Iteration 4 === [mainErr2ASSERT_VIOLATIONERROR_FUNCTION, mainErr1ASSERT_VIOLATIONERROR_FUNCTION, mainErr0ASSERT_VIOLATIONERROR_FUNCTION, mainErr3ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-10-13 20:12:18,511 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-13 20:12:18,511 INFO L82 PathProgramCache]: Analyzing trace with hash -954667545, now seen corresponding path program 1 times [2019-10-13 20:12:18,511 INFO L157 tionRefinementEngine]: Executing refinement strategy TAIPAN [2019-10-13 20:12:18,511 INFO L342 tionRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1385064473] [2019-10-13 20:12:18,512 INFO L116 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-13 20:12:18,512 INFO L116 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-13 20:12:18,512 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-10-13 20:12:18,599 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-13 20:12:18,813 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-10-13 20:12:18,814 INFO L342 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1385064473] [2019-10-13 20:12:18,814 INFO L342 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1135611641] [2019-10-13 20:12:18,814 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 2 with z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 2 with z3 -smt2 -in SMTLIB2_COMPLIANT=true [2019-10-13 20:12:18,949 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-13 20:12:18,953 INFO L256 TraceCheckSpWp]: Trace formula consists of 107 conjuncts, 33 conjunts are in the unsatisfiable core [2019-10-13 20:12:18,961 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2019-10-13 20:12:19,027 INFO L375 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 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 6 treesize of output 5 [2019-10-13 20:12:19,027 INFO L496 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2019-10-13 20:12:19,042 INFO L567 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2019-10-13 20:12:19,048 INFO L375 Elim1Store]: Elim1 did not use preprocessing 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 13 treesize of output 9 [2019-10-13 20:12:19,049 INFO L496 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 1 xjuncts. [2019-10-13 20:12:19,060 INFO L567 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2019-10-13 20:12:19,061 INFO L496 ElimStorePlain]: Start of recursive call 1: 1 dim-1 vars, 1 dim-2 vars, End of recursive call: and 1 xjuncts. [2019-10-13 20:12:19,061 INFO L221 ElimStorePlain]: Needed 3 recursive calls to eliminate 2 variables, input treesize:29, output treesize:24 [2019-10-13 20:12:19,134 INFO L341 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2019-10-13 20:12:19,135 INFO L375 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 2 case distinctions, treesize of input 17 treesize of output 39 [2019-10-13 20:12:19,138 INFO L496 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2019-10-13 20:12:19,189 INFO L567 ElimStorePlain]: treesize reduction 14, result has 80.3 percent of original size [2019-10-13 20:12:19,199 INFO L189 IndexEqualityManager]: detected not equals via solver [2019-10-13 20:12:19,204 INFO L375 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 2 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 [2019-10-13 20:12:19,205 INFO L496 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 1 xjuncts. [2019-10-13 20:12:19,222 INFO L567 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2019-10-13 20:12:19,230 INFO L375 Elim1Store]: Elim1 did not use preprocessing 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 [2019-10-13 20:12:19,231 INFO L496 ElimStorePlain]: Start of recursive call 4: End of recursive call: and 1 xjuncts. [2019-10-13 20:12:19,244 INFO L567 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2019-10-13 20:12:19,244 INFO L496 ElimStorePlain]: Start of recursive call 1: 1 dim-1 vars, 2 dim-2 vars, End of recursive call: and 1 xjuncts. [2019-10-13 20:12:19,245 INFO L221 ElimStorePlain]: Needed 4 recursive calls to eliminate 3 variables, input treesize:59, output treesize:27 [2019-10-13 20:12:19,314 INFO L341 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2019-10-13 20:12:19,315 INFO L375 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 3 select indices, 3 select index equivalence classes, 1 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 2 case distinctions, treesize of input 16 treesize of output 26 [2019-10-13 20:12:19,316 INFO L496 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2019-10-13 20:12:19,358 INFO L567 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2019-10-13 20:12:19,361 INFO L392 ElimStorePlain]: Different costs {2=[|v_#memory_int_26|, |v_#memory_int_27|], 4=[|v_#memory_int_29|]} [2019-10-13 20:12:19,369 INFO L496 ElimStorePlain]: Start of recursive call 3: 1 dim-0 vars, End of recursive call: 1 dim-0 vars, and 1 xjuncts. [2019-10-13 20:12:19,398 INFO L567 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2019-10-13 20:12:19,402 INFO L496 ElimStorePlain]: Start of recursive call 4: 1 dim-0 vars, End of recursive call: 1 dim-0 vars, and 1 xjuncts. [2019-10-13 20:12:19,424 INFO L567 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2019-10-13 20:12:19,429 INFO L189 IndexEqualityManager]: detected not equals via solver [2019-10-13 20:12:19,452 INFO L341 Elim1Store]: treesize reduction 42, result has 28.8 percent of original size [2019-10-13 20:12:19,453 INFO L375 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 4 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 2 case distinctions, treesize of input 52 treesize of output 45 [2019-10-13 20:12:19,454 INFO L496 ElimStorePlain]: Start of recursive call 5: End of recursive call: and 1 xjuncts. [2019-10-13 20:12:19,476 INFO L567 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2019-10-13 20:12:19,479 INFO L496 ElimStorePlain]: Start of recursive call 1: 4 dim-0 vars, 1 dim-1 vars, 3 dim-2 vars, End of recursive call: 4 dim-0 vars, and 1 xjuncts. [2019-10-13 20:12:19,479 INFO L221 ElimStorePlain]: Needed 5 recursive calls to eliminate 8 variables, input treesize:80, output treesize:43 [2019-10-13 20:12:19,615 INFO L375 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 3 select indices, 3 select index equivalence classes, 3 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 0 case distinctions, treesize of input 33 treesize of output 13 [2019-10-13 20:12:19,616 INFO L496 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2019-10-13 20:12:19,625 INFO L567 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2019-10-13 20:12:19,625 INFO L496 ElimStorePlain]: Start of recursive call 1: 5 dim-0 vars, 1 dim-2 vars, End of recursive call: and 1 xjuncts. [2019-10-13 20:12:19,626 INFO L221 ElimStorePlain]: Needed 2 recursive calls to eliminate 6 variables, input treesize:45, output treesize:3 [2019-10-13 20:12:19,630 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-10-13 20:12:19,631 INFO L321 TraceCheckSpWp]: Computing backward predicates... [2019-10-13 20:12:19,661 INFO L392 ElimStorePlain]: Different costs {2=[|v_#memory_int_27|], 3=[|v_#memory_int_26|]} [2019-10-13 20:12:19,665 INFO L496 ElimStorePlain]: Start of recursive call 2: 1 dim-0 vars, End of recursive call: 1 dim-0 vars, and 1 xjuncts. [2019-10-13 20:12:19,682 INFO L567 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2019-10-13 20:12:19,686 INFO L496 ElimStorePlain]: Start of recursive call 3: 1 dim-0 vars, End of recursive call: 1 dim-0 vars, and 1 xjuncts. [2019-10-13 20:12:19,698 INFO L567 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2019-10-13 20:12:19,699 INFO L496 ElimStorePlain]: Start of recursive call 1: 2 dim-0 vars, 2 dim-2 vars, End of recursive call: 4 dim-0 vars, and 1 xjuncts. [2019-10-13 20:12:19,699 INFO L221 ElimStorePlain]: Needed 3 recursive calls to eliminate 4 variables, input treesize:63, output treesize:55 [2019-10-13 20:12:19,739 INFO L392 ElimStorePlain]: Different costs {2=[|v_#memory_int_25|], 6=[|v_#memory_int_31|]} [2019-10-13 20:12:19,743 INFO L496 ElimStorePlain]: Start of recursive call 2: 1 dim-0 vars, End of recursive call: 1 dim-0 vars, and 1 xjuncts. [2019-10-13 20:12:19,767 INFO L567 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2019-10-13 20:12:19,771 INFO L496 ElimStorePlain]: Start of recursive call 3: 1 dim-0 vars, End of recursive call: 1 dim-0 vars, and 1 xjuncts. [2019-10-13 20:12:19,785 INFO L567 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2019-10-13 20:12:19,786 INFO L496 ElimStorePlain]: Start of recursive call 1: 6 dim-0 vars, 2 dim-2 vars, End of recursive call: 8 dim-0 vars, and 1 xjuncts. [2019-10-13 20:12:19,787 INFO L221 ElimStorePlain]: Needed 3 recursive calls to eliminate 8 variables, input treesize:96, output treesize:102 [2019-10-13 20:12:19,875 INFO L341 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2019-10-13 20:12:19,876 INFO L375 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 22 treesize of output 26 [2019-10-13 20:12:19,876 INFO L496 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2019-10-13 20:12:19,879 INFO L567 ElimStorePlain]: treesize reduction 105, result has 0.9 percent of original size [2019-10-13 20:12:19,881 INFO L464 ElimStorePlain]: Eliminatee |v_#memory_int_24| vanished before elimination [2019-10-13 20:12:19,882 INFO L496 ElimStorePlain]: Start of recursive call 1: 9 dim-0 vars, 1 dim-1 vars, 1 dim-2 vars, End of recursive call: and 1 xjuncts. [2019-10-13 20:12:19,882 INFO L221 ElimStorePlain]: Needed 2 recursive calls to eliminate 11 variables, input treesize:118, output treesize:1 [2019-10-13 20:12:19,889 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-10-13 20:12:19,890 INFO L342 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleAbstractInterpretation [521489472] [2019-10-13 20:12:19,907 INFO L211 CegarAbsIntRunner]: Running AI on error trace of length 18 [2019-10-13 20:12:19,969 INFO L148 AbstractInterpreter]: Using domain IntervalDomain [2019-10-13 20:12:19,970 INFO L101 FixpointEngine]: Starting fixpoint engine with domain IntervalDomain (maxUnwinding=3, maxParallelStates=2) [2019-10-13 20:12:20,062 INFO L266 AbstractInterpreter]: Error location(s) were unreachable [2019-10-13 20:12:20,064 INFO L272 AbstractInterpreter]: Visited 6 different actions 6 times. Never merged. Never widened. Performed 19 root evaluator evaluations with a maximum evaluation depth of 0. Performed 19 inverse root evaluator evaluations with a maximum inverse evaluation depth of 0. Never found a fixpoint. Largest state had 35 variables. [2019-10-13 20:12:20,068 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-13 20:12:20,069 INFO L536 sIntCurrentIteration]: Generating AbsInt predicates [2019-10-13 20:12:20,133 INFO L227 lantSequenceWeakener]: Weakened 4 states. On average, predicates are now at 100% of their original sizes. [2019-10-13 20:12:20,133 INFO L551 sIntCurrentIteration]: Unifying AI predicates [2019-10-13 20:12:20,135 INFO L553 sIntCurrentIteration]: We unified 16 AI predicates to 16 [2019-10-13 20:12:20,135 INFO L562 sIntCurrentIteration]: Finished generation of AbsInt predicates [2019-10-13 20:12:20,138 INFO L223 tionRefinementEngine]: Constructing automaton from 1 perfect and 3 imperfect interpolant sequences. [2019-10-13 20:12:20,138 INFO L236 tionRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [7, 7, 7] total 14 [2019-10-13 20:12:20,139 INFO L342 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [641909057] [2019-10-13 20:12:20,139 INFO L442 AbstractCegarLoop]: Interpolant automaton has 2 states [2019-10-13 20:12:20,140 INFO L137 tionRefinementEngine]: Using predicate unifier AbsIntPredicateUnifier provided by strategy TAIPAN [2019-10-13 20:12:20,140 INFO L124 tionRefinementEngine]: Using hoare triple checker CachingHoareTripleCheckerMap provided by strategy [2019-10-13 20:12:20,140 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2019-10-13 20:12:20,141 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2019-10-13 20:12:20,141 INFO L87 Difference]: Start difference. First operand 36 states and 40 transitions. Second operand 2 states. [2019-10-13 20:12:20,143 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-10-13 20:12:20,143 INFO L93 Difference]: Finished difference Result 36 states and 40 transitions. [2019-10-13 20:12:20,143 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2019-10-13 20:12:20,143 INFO L78 Accepts]: Start accepts. Automaton has 2 states. Word has length 17 [2019-10-13 20:12:20,144 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-10-13 20:12:20,144 INFO L225 Difference]: With dead ends: 36 [2019-10-13 20:12:20,144 INFO L226 Difference]: Without dead ends: 0 [2019-10-13 20:12:20,145 INFO L600 BasicCegarLoop]: 0 DeclaredPredicates, 16 GetRequests, 16 SyntacticMatches, 0 SemanticMatches, 0 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2019-10-13 20:12:20,145 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2019-10-13 20:12:20,145 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2019-10-13 20:12:20,145 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 0 states. [2019-10-13 20:12:20,145 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2019-10-13 20:12:20,146 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 17 [2019-10-13 20:12:20,146 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-10-13 20:12:20,146 INFO L462 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2019-10-13 20:12:20,146 INFO L463 AbstractCegarLoop]: Interpolant automaton has 2 states. [2019-10-13 20:12:20,146 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2019-10-13 20:12:20,146 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2019-10-13 20:12:20,347 WARN L499 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 z3 -smt2 -in SMTLIB2_COMPLIANT=true [2019-10-13 20:12:20,353 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends 0 states and 0 transitions. [2019-10-13 20:12:20,380 INFO L443 ceAbstractionStarter]: For program point ULTIMATE.initFINAL(line -1) no Hoare annotation was computed. [2019-10-13 20:12:20,381 INFO L446 ceAbstractionStarter]: At program point ULTIMATE.initENTRY(line -1) the Hoare annotation is: true [2019-10-13 20:12:20,381 INFO L443 ceAbstractionStarter]: For program point ULTIMATE.initEXIT(line -1) no Hoare annotation was computed. [2019-10-13 20:12:20,381 INFO L443 ceAbstractionStarter]: For program point ULTIMATE.startEXIT(line -1) no Hoare annotation was computed. [2019-10-13 20:12:20,381 INFO L446 ceAbstractionStarter]: At program point L-1(line -1) the Hoare annotation is: true [2019-10-13 20:12:20,381 INFO L446 ceAbstractionStarter]: At program point ULTIMATE.startENTRY(line -1) the Hoare annotation is: true [2019-10-13 20:12:20,382 INFO L443 ceAbstractionStarter]: For program point ULTIMATE.startFINAL(line -1) no Hoare annotation was computed. [2019-10-13 20:12:20,382 INFO L443 ceAbstractionStarter]: For program point mainEXIT(lines 992 1061) no Hoare annotation was computed. [2019-10-13 20:12:20,382 INFO L443 ceAbstractionStarter]: For program point L1043-1(lines 1043 1058) no Hoare annotation was computed. [2019-10-13 20:12:20,382 INFO L443 ceAbstractionStarter]: For program point L1035-1(line 1035) no Hoare annotation was computed. [2019-10-13 20:12:20,382 INFO L443 ceAbstractionStarter]: For program point L1002-1(lines 1002 1021) no Hoare annotation was computed. [2019-10-13 20:12:20,382 INFO L443 ceAbstractionStarter]: For program point L1035-3(line 1035) no Hoare annotation was computed. [2019-10-13 20:12:20,382 INFO L443 ceAbstractionStarter]: For program point L1002-3(lines 1002 1021) no Hoare annotation was computed. [2019-10-13 20:12:20,383 INFO L439 ceAbstractionStarter]: At program point L1035-4(line 1035) the Hoare annotation is: false [2019-10-13 20:12:20,383 INFO L443 ceAbstractionStarter]: For program point L1027-1(line 1027) no Hoare annotation was computed. [2019-10-13 20:12:20,383 INFO L443 ceAbstractionStarter]: For program point L1027-3(line 1027) no Hoare annotation was computed. [2019-10-13 20:12:20,383 INFO L439 ceAbstractionStarter]: At program point L1027-4(line 1027) the Hoare annotation is: false [2019-10-13 20:12:20,383 INFO L443 ceAbstractionStarter]: For program point mainErr2ASSERT_VIOLATIONERROR_FUNCTION(line 1035) no Hoare annotation was computed. [2019-10-13 20:12:20,384 INFO L443 ceAbstractionStarter]: For program point L1036(line 1036) no Hoare annotation was computed. [2019-10-13 20:12:20,384 INFO L443 ceAbstractionStarter]: For program point L1036-1(line 1036) no Hoare annotation was computed. [2019-10-13 20:12:20,384 INFO L443 ceAbstractionStarter]: For program point L1036-3(line 1036) no Hoare annotation was computed. [2019-10-13 20:12:20,384 INFO L443 ceAbstractionStarter]: For program point L1036-4(lines 1033 1037) no Hoare annotation was computed. [2019-10-13 20:12:20,384 INFO L443 ceAbstractionStarter]: For program point L1028(line 1028) no Hoare annotation was computed. [2019-10-13 20:12:20,384 INFO L443 ceAbstractionStarter]: For program point L1028-1(line 1028) no Hoare annotation was computed. [2019-10-13 20:12:20,384 INFO L443 ceAbstractionStarter]: For program point L1028-3(line 1028) no Hoare annotation was computed. [2019-10-13 20:12:20,384 INFO L443 ceAbstractionStarter]: For program point L1028-4(lines 993 1061) no Hoare annotation was computed. [2019-10-13 20:12:20,385 INFO L443 ceAbstractionStarter]: For program point L1045(lines 1045 1057) no Hoare annotation was computed. [2019-10-13 20:12:20,385 INFO L443 ceAbstractionStarter]: For program point L1045-2(lines 993 1061) no Hoare annotation was computed. [2019-10-13 20:12:20,385 INFO L443 ceAbstractionStarter]: For program point mainFINAL(lines 992 1061) no Hoare annotation was computed. [2019-10-13 20:12:20,385 INFO L446 ceAbstractionStarter]: At program point mainENTRY(lines 992 1061) the Hoare annotation is: true [2019-10-13 20:12:20,385 INFO L443 ceAbstractionStarter]: For program point L1030-1(lines 993 1061) no Hoare annotation was computed. [2019-10-13 20:12:20,385 INFO L443 ceAbstractionStarter]: For program point mainErr1ASSERT_VIOLATIONERROR_FUNCTION(line 1028) no Hoare annotation was computed. [2019-10-13 20:12:20,386 INFO L443 ceAbstractionStarter]: For program point L1032(lines 1032 1037) no Hoare annotation was computed. [2019-10-13 20:12:20,386 INFO L443 ceAbstractionStarter]: For program point L1032-1(lines 1032 1037) no Hoare annotation was computed. [2019-10-13 20:12:20,386 INFO L443 ceAbstractionStarter]: For program point mainErr3ASSERT_VIOLATIONERROR_FUNCTION(line 1036) no Hoare annotation was computed. [2019-10-13 20:12:20,386 INFO L443 ceAbstractionStarter]: For program point mainErr0ASSERT_VIOLATIONERROR_FUNCTION(line 1027) no Hoare annotation was computed. [2019-10-13 20:12:20,386 INFO L443 ceAbstractionStarter]: For program point L1009(lines 1009 1020) no Hoare annotation was computed. [2019-10-13 20:12:20,386 INFO L439 ceAbstractionStarter]: At program point L1009-2(lines 1002 1021) the Hoare annotation is: false [2019-10-13 20:12:20,395 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 13.10 08:12:20 BoogieIcfgContainer [2019-10-13 20:12:20,396 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2019-10-13 20:12:20,397 INFO L168 Benchmark]: Toolchain (without parser) took 4078.66 ms. Allocated memory was 146.3 MB in the beginning and 245.9 MB in the end (delta: 99.6 MB). Free memory was 101.5 MB in the beginning and 162.0 MB in the end (delta: -60.5 MB). Peak memory consumption was 39.1 MB. Max. memory is 7.1 GB. [2019-10-13 20:12:20,398 INFO L168 Benchmark]: CDTParser took 0.23 ms. Allocated memory is still 146.3 MB. Free memory was 121.4 MB in the beginning and 121.2 MB in the end (delta: 210.0 kB). Peak memory consumption was 210.0 kB. Max. memory is 7.1 GB. [2019-10-13 20:12:20,399 INFO L168 Benchmark]: CACSL2BoogieTranslator took 587.72 ms. Allocated memory was 146.3 MB in the beginning and 203.9 MB in the end (delta: 57.7 MB). Free memory was 101.3 MB in the beginning and 171.1 MB in the end (delta: -69.9 MB). Peak memory consumption was 21.6 MB. Max. memory is 7.1 GB. [2019-10-13 20:12:20,400 INFO L168 Benchmark]: Boogie Preprocessor took 70.86 ms. Allocated memory is still 203.9 MB. Free memory was 171.1 MB in the beginning and 167.6 MB in the end (delta: 3.5 MB). Peak memory consumption was 3.5 MB. Max. memory is 7.1 GB. [2019-10-13 20:12:20,401 INFO L168 Benchmark]: RCFGBuilder took 643.19 ms. Allocated memory is still 203.9 MB. Free memory was 167.6 MB in the beginning and 123.1 MB in the end (delta: 44.5 MB). Peak memory consumption was 44.5 MB. Max. memory is 7.1 GB. [2019-10-13 20:12:20,402 INFO L168 Benchmark]: TraceAbstraction took 2772.66 ms. Allocated memory was 203.9 MB in the beginning and 245.9 MB in the end (delta: 41.9 MB). Free memory was 123.1 MB in the beginning and 162.0 MB in the end (delta: -38.9 MB). Peak memory consumption was 3.0 MB. Max. memory is 7.1 GB. [2019-10-13 20:12:20,409 INFO L335 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.23 ms. Allocated memory is still 146.3 MB. Free memory was 121.4 MB in the beginning and 121.2 MB in the end (delta: 210.0 kB). Peak memory consumption was 210.0 kB. Max. memory is 7.1 GB. * CACSL2BoogieTranslator took 587.72 ms. Allocated memory was 146.3 MB in the beginning and 203.9 MB in the end (delta: 57.7 MB). Free memory was 101.3 MB in the beginning and 171.1 MB in the end (delta: -69.9 MB). Peak memory consumption was 21.6 MB. Max. memory is 7.1 GB. * Boogie Preprocessor took 70.86 ms. Allocated memory is still 203.9 MB. Free memory was 171.1 MB in the beginning and 167.6 MB in the end (delta: 3.5 MB). Peak memory consumption was 3.5 MB. Max. memory is 7.1 GB. * RCFGBuilder took 643.19 ms. Allocated memory is still 203.9 MB. Free memory was 167.6 MB in the beginning and 123.1 MB in the end (delta: 44.5 MB). Peak memory consumption was 44.5 MB. Max. memory is 7.1 GB. * TraceAbstraction took 2772.66 ms. Allocated memory was 203.9 MB in the beginning and 245.9 MB in the end (delta: 41.9 MB). Free memory was 123.1 MB in the beginning and 162.0 MB in the end (delta: -38.9 MB). Peak memory consumption was 3.0 MB. Max. memory is 7.1 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - PositiveResult [Line: 1035]: call of __VERIFIER_error() unreachable For all program executions holds that call of __VERIFIER_error() unreachable at this location - PositiveResult [Line: 1028]: call of __VERIFIER_error() unreachable For all program executions holds that call of __VERIFIER_error() unreachable at this location - PositiveResult [Line: 1027]: call of __VERIFIER_error() unreachable For all program executions holds that call of __VERIFIER_error() unreachable at this location - PositiveResult [Line: 1036]: call of __VERIFIER_error() unreachable For all program executions holds that call of __VERIFIER_error() unreachable at this location - AllSpecificationsHoldResult: All specifications hold 4 specifications checked. All of them hold - InvariantResult [Line: 1002]: Loop Invariant Derived loop invariant: 0 - InvariantResult [Line: 1027]: Loop Invariant Derived loop invariant: 0 - InvariantResult [Line: 1035]: Loop Invariant Derived loop invariant: 0 - StatisticsResult: Ultimate Automizer benchmark data CFG has 3 procedures, 38 locations, 4 error locations. Result: SAFE, OverallTime: 2.7s, OverallIterations: 4, TraceHistogramMax: 2, AutomataDifference: 0.2s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, HoareTripleCheckerStatistics: 94 SDtfs, 62 SDslu, 80 SDs, 0 SdLazy, 51 SolverSat, 16 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 0.1s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 31 GetRequests, 22 SyntacticMatches, 1 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.1s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=38occurred in iteration=0, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: 0.0s AutomataMinimizationTime, 4 MinimizatonAttempts, 19 StatesRemovedByMinimization, 2 NontrivialMinimizations, HoareAnnotationStatistics: 0.0s HoareAnnotationTime, 7 LocationsWithAnnotation, 7 PreInvPairs, 7 NumberOfFragments, 7 HoareAnnotationTreeSize, 7 FomulaSimplifications, 0 FormulaSimplificationTreeSizeReduction, 0.0s HoareSimplificationTime, 7 FomulaSimplificationsInter, 0 FormulaSimplificationTreeSizeReductionInter, 0.0s HoareSimplificationTimeInter, RefinementEngineStatistics: TRACE_CHECK: 0.0s SsaConstructionTime, 0.1s SatisfiabilityAnalysisTime, 1.4s InterpolantComputationTime, 69 NumberOfCodeBlocks, 69 NumberOfCodeBlocksAsserted, 5 NumberOfCheckSat, 80 ConstructedInterpolants, 9 QuantifiedInterpolants, 14476 SizeOfPredicates, 12 NumberOfNonLiveVariables, 107 ConjunctsInSsa, 33 ConjunctsInUnsatCore, 6 InterpolantComputations, 3 PerfectInterpolantSequences, 0/6 InterpolantCoveringCapability, INVARIANT_SYNTHESIS: No data available, INTERPOLANT_CONSOLIDATION: No data available, ABSTRACT_INTERPRETATION: TIME[ms]: 162, ITERATIONS: 1, WAS_STRONG: 1, WEAKENING_RATIO: 0.90625, AVG_VARS_REMOVED_DURING_WEAKENING: 1.1875, AVG_WEAKENED_CONJUNCTS: 0.375, PDR: No data available, SIFA: No data available, ReuseStatistics: No data available RESULT: Ultimate proved your program to be correct! Received shutdown request...