/usr/bin/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/list-ext3-properties/sll_of_sll_nondet_append-1.i -------------------------------------------------------------------------------- This is Ultimate 0.1.24-fb55353 [2019-11-07 00:31:02,994 INFO L177 SettingsManager]: Resetting all preferences to default values... [2019-11-07 00:31:02,997 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2019-11-07 00:31:03,016 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2019-11-07 00:31:03,017 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2019-11-07 00:31:03,018 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2019-11-07 00:31:03,019 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2019-11-07 00:31:03,021 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2019-11-07 00:31:03,023 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2019-11-07 00:31:03,024 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2019-11-07 00:31:03,025 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2019-11-07 00:31:03,026 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2019-11-07 00:31:03,026 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2019-11-07 00:31:03,027 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2019-11-07 00:31:03,028 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2019-11-07 00:31:03,029 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2019-11-07 00:31:03,030 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2019-11-07 00:31:03,031 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2019-11-07 00:31:03,033 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2019-11-07 00:31:03,035 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2019-11-07 00:31:03,036 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2019-11-07 00:31:03,037 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2019-11-07 00:31:03,038 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2019-11-07 00:31:03,039 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2019-11-07 00:31:03,041 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2019-11-07 00:31:03,041 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2019-11-07 00:31:03,042 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2019-11-07 00:31:03,043 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2019-11-07 00:31:03,043 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2019-11-07 00:31:03,044 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2019-11-07 00:31:03,044 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2019-11-07 00:31:03,045 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2019-11-07 00:31:03,046 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2019-11-07 00:31:03,046 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2019-11-07 00:31:03,047 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2019-11-07 00:31:03,048 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2019-11-07 00:31:03,048 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2019-11-07 00:31:03,049 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2019-11-07 00:31:03,049 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2019-11-07 00:31:03,050 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2019-11-07 00:31:03,050 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2019-11-07 00:31:03,051 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 [2019-11-07 00:31:03,065 INFO L113 SettingsManager]: Loading preferences was successful [2019-11-07 00:31:03,065 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2019-11-07 00:31:03,066 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2019-11-07 00:31:03,067 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2019-11-07 00:31:03,067 INFO L138 SettingsManager]: * Use SBE=true [2019-11-07 00:31:03,067 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2019-11-07 00:31:03,067 INFO L138 SettingsManager]: * sizeof long=4 [2019-11-07 00:31:03,068 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2019-11-07 00:31:03,068 INFO L138 SettingsManager]: * sizeof POINTER=4 [2019-11-07 00:31:03,068 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2019-11-07 00:31:03,068 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2019-11-07 00:31:03,068 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2019-11-07 00:31:03,068 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2019-11-07 00:31:03,069 INFO L138 SettingsManager]: * sizeof long double=12 [2019-11-07 00:31:03,069 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2019-11-07 00:31:03,069 INFO L138 SettingsManager]: * Use constant arrays=true [2019-11-07 00:31:03,069 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2019-11-07 00:31:03,069 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2019-11-07 00:31:03,070 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2019-11-07 00:31:03,070 INFO L138 SettingsManager]: * To the following directory=./dump/ [2019-11-07 00:31:03,070 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2019-11-07 00:31:03,070 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2019-11-07 00:31:03,071 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2019-11-07 00:31:03,071 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2019-11-07 00:31:03,071 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2019-11-07 00:31:03,071 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2019-11-07 00:31:03,071 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2019-11-07 00:31:03,071 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2019-11-07 00:31:03,072 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 [2019-11-07 00:31:03,337 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2019-11-07 00:31:03,353 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2019-11-07 00:31:03,357 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2019-11-07 00:31:03,358 INFO L271 PluginConnector]: Initializing CDTParser... [2019-11-07 00:31:03,359 INFO L275 PluginConnector]: CDTParser initialized [2019-11-07 00:31:03,360 INFO L428 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/list-ext3-properties/sll_of_sll_nondet_append-1.i [2019-11-07 00:31:03,434 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/26f82d688/9c8f9b4cc519469f987d2a318fb25e1e/FLAG59e6f59f9 [2019-11-07 00:31:03,926 INFO L306 CDTParser]: Found 1 translation units. [2019-11-07 00:31:03,927 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/list-ext3-properties/sll_of_sll_nondet_append-1.i [2019-11-07 00:31:03,940 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/26f82d688/9c8f9b4cc519469f987d2a318fb25e1e/FLAG59e6f59f9 [2019-11-07 00:31:04,218 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/26f82d688/9c8f9b4cc519469f987d2a318fb25e1e [2019-11-07 00:31:04,228 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2019-11-07 00:31:04,230 INFO L131 ToolchainWalker]: Walking toolchain with 4 elements. [2019-11-07 00:31:04,231 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2019-11-07 00:31:04,231 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2019-11-07 00:31:04,235 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2019-11-07 00:31:04,236 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 07.11 12:31:04" (1/1) ... [2019-11-07 00:31:04,239 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@2801555d and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 12:31:04, skipping insertion in model container [2019-11-07 00:31:04,239 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 07.11 12:31:04" (1/1) ... [2019-11-07 00:31:04,246 INFO L142 MainTranslator]: Starting translation in SV-COMP mode [2019-11-07 00:31:04,303 INFO L173 MainTranslator]: Built tables and reachable declarations [2019-11-07 00:31:04,767 INFO L206 PostProcessor]: Analyzing one entry point: main [2019-11-07 00:31:04,776 INFO L188 MainTranslator]: Completed pre-run [2019-11-07 00:31:04,838 INFO L206 PostProcessor]: Analyzing one entry point: main [2019-11-07 00:31:04,890 INFO L192 MainTranslator]: Completed translation [2019-11-07 00:31:04,891 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 12:31:04 WrapperNode [2019-11-07 00:31:04,891 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2019-11-07 00:31:04,892 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2019-11-07 00:31:04,892 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2019-11-07 00:31:04,892 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2019-11-07 00:31:04,905 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 12:31:04" (1/1) ... [2019-11-07 00:31:04,906 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 12:31:04" (1/1) ... [2019-11-07 00:31:04,922 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 12:31:04" (1/1) ... [2019-11-07 00:31:04,923 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 12:31:04" (1/1) ... [2019-11-07 00:31:04,944 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 12:31:04" (1/1) ... [2019-11-07 00:31:04,956 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 12:31:04" (1/1) ... [2019-11-07 00:31:04,961 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 12:31:04" (1/1) ... [2019-11-07 00:31:04,968 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2019-11-07 00:31:04,969 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2019-11-07 00:31:04,969 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2019-11-07 00:31:04,969 INFO L275 PluginConnector]: RCFGBuilder initialized [2019-11-07 00:31:04,970 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 12:31:04" (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 [2019-11-07 00:31:05,022 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2019-11-07 00:31:05,022 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2019-11-07 00:31:05,022 INFO L138 BoogieDeclarations]: Found implementation of procedure __bswap_32 [2019-11-07 00:31:05,022 INFO L138 BoogieDeclarations]: Found implementation of procedure __bswap_64 [2019-11-07 00:31:05,023 INFO L138 BoogieDeclarations]: Found implementation of procedure myexit [2019-11-07 00:31:05,023 INFO L138 BoogieDeclarations]: Found implementation of procedure sll_create [2019-11-07 00:31:05,023 INFO L138 BoogieDeclarations]: Found implementation of procedure node_create_with_sublist [2019-11-07 00:31:05,023 INFO L138 BoogieDeclarations]: Found implementation of procedure sll_length [2019-11-07 00:31:05,024 INFO L138 BoogieDeclarations]: Found implementation of procedure sll_append [2019-11-07 00:31:05,024 INFO L138 BoogieDeclarations]: Found implementation of procedure sll_hierarchical_destroy [2019-11-07 00:31:05,024 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2019-11-07 00:31:05,024 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_error [2019-11-07 00:31:05,024 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_int [2019-11-07 00:31:05,025 INFO L130 BoogieDeclarations]: Found specification of procedure __bswap_32 [2019-11-07 00:31:05,025 INFO L130 BoogieDeclarations]: Found specification of procedure __bswap_64 [2019-11-07 00:31:05,025 INFO L130 BoogieDeclarations]: Found specification of procedure __ctype_get_mb_cur_max [2019-11-07 00:31:05,028 INFO L130 BoogieDeclarations]: Found specification of procedure atof [2019-11-07 00:31:05,028 INFO L130 BoogieDeclarations]: Found specification of procedure atoi [2019-11-07 00:31:05,029 INFO L130 BoogieDeclarations]: Found specification of procedure atol [2019-11-07 00:31:05,029 INFO L130 BoogieDeclarations]: Found specification of procedure atoll [2019-11-07 00:31:05,029 INFO L130 BoogieDeclarations]: Found specification of procedure strtod [2019-11-07 00:31:05,029 INFO L130 BoogieDeclarations]: Found specification of procedure strtof [2019-11-07 00:31:05,029 INFO L130 BoogieDeclarations]: Found specification of procedure strtold [2019-11-07 00:31:05,029 INFO L130 BoogieDeclarations]: Found specification of procedure strtol [2019-11-07 00:31:05,029 INFO L130 BoogieDeclarations]: Found specification of procedure strtoul [2019-11-07 00:31:05,030 INFO L130 BoogieDeclarations]: Found specification of procedure strtoq [2019-11-07 00:31:05,030 INFO L130 BoogieDeclarations]: Found specification of procedure strtouq [2019-11-07 00:31:05,030 INFO L130 BoogieDeclarations]: Found specification of procedure strtoll [2019-11-07 00:31:05,030 INFO L130 BoogieDeclarations]: Found specification of procedure strtoull [2019-11-07 00:31:05,030 INFO L130 BoogieDeclarations]: Found specification of procedure l64a [2019-11-07 00:31:05,030 INFO L130 BoogieDeclarations]: Found specification of procedure a64l [2019-11-07 00:31:05,030 INFO L130 BoogieDeclarations]: Found specification of procedure select [2019-11-07 00:31:05,031 INFO L130 BoogieDeclarations]: Found specification of procedure pselect [2019-11-07 00:31:05,031 INFO L130 BoogieDeclarations]: Found specification of procedure gnu_dev_major [2019-11-07 00:31:05,031 INFO L130 BoogieDeclarations]: Found specification of procedure gnu_dev_minor [2019-11-07 00:31:05,031 INFO L130 BoogieDeclarations]: Found specification of procedure gnu_dev_makedev [2019-11-07 00:31:05,031 INFO L130 BoogieDeclarations]: Found specification of procedure random [2019-11-07 00:31:05,032 INFO L130 BoogieDeclarations]: Found specification of procedure srandom [2019-11-07 00:31:05,032 INFO L130 BoogieDeclarations]: Found specification of procedure initstate [2019-11-07 00:31:05,032 INFO L130 BoogieDeclarations]: Found specification of procedure setstate [2019-11-07 00:31:05,032 INFO L130 BoogieDeclarations]: Found specification of procedure random_r [2019-11-07 00:31:05,032 INFO L130 BoogieDeclarations]: Found specification of procedure srandom_r [2019-11-07 00:31:05,032 INFO L130 BoogieDeclarations]: Found specification of procedure initstate_r [2019-11-07 00:31:05,033 INFO L130 BoogieDeclarations]: Found specification of procedure setstate_r [2019-11-07 00:31:05,033 INFO L130 BoogieDeclarations]: Found specification of procedure rand [2019-11-07 00:31:05,033 INFO L130 BoogieDeclarations]: Found specification of procedure srand [2019-11-07 00:31:05,033 INFO L130 BoogieDeclarations]: Found specification of procedure rand_r [2019-11-07 00:31:05,033 INFO L130 BoogieDeclarations]: Found specification of procedure drand48 [2019-11-07 00:31:05,033 INFO L130 BoogieDeclarations]: Found specification of procedure erand48 [2019-11-07 00:31:05,034 INFO L130 BoogieDeclarations]: Found specification of procedure lrand48 [2019-11-07 00:31:05,034 INFO L130 BoogieDeclarations]: Found specification of procedure nrand48 [2019-11-07 00:31:05,034 INFO L130 BoogieDeclarations]: Found specification of procedure mrand48 [2019-11-07 00:31:05,034 INFO L130 BoogieDeclarations]: Found specification of procedure jrand48 [2019-11-07 00:31:05,034 INFO L130 BoogieDeclarations]: Found specification of procedure srand48 [2019-11-07 00:31:05,034 INFO L130 BoogieDeclarations]: Found specification of procedure seed48 [2019-11-07 00:31:05,034 INFO L130 BoogieDeclarations]: Found specification of procedure lcong48 [2019-11-07 00:31:05,034 INFO L130 BoogieDeclarations]: Found specification of procedure drand48_r [2019-11-07 00:31:05,035 INFO L130 BoogieDeclarations]: Found specification of procedure erand48_r [2019-11-07 00:31:05,035 INFO L130 BoogieDeclarations]: Found specification of procedure lrand48_r [2019-11-07 00:31:05,035 INFO L130 BoogieDeclarations]: Found specification of procedure nrand48_r [2019-11-07 00:31:05,035 INFO L130 BoogieDeclarations]: Found specification of procedure mrand48_r [2019-11-07 00:31:05,035 INFO L130 BoogieDeclarations]: Found specification of procedure jrand48_r [2019-11-07 00:31:05,035 INFO L130 BoogieDeclarations]: Found specification of procedure srand48_r [2019-11-07 00:31:05,036 INFO L130 BoogieDeclarations]: Found specification of procedure seed48_r [2019-11-07 00:31:05,036 INFO L130 BoogieDeclarations]: Found specification of procedure lcong48_r [2019-11-07 00:31:05,036 INFO L130 BoogieDeclarations]: Found specification of procedure malloc [2019-11-07 00:31:05,036 INFO L130 BoogieDeclarations]: Found specification of procedure calloc [2019-11-07 00:31:05,036 INFO L130 BoogieDeclarations]: Found specification of procedure realloc [2019-11-07 00:31:05,037 INFO L130 BoogieDeclarations]: Found specification of procedure free [2019-11-07 00:31:05,037 INFO L130 BoogieDeclarations]: Found specification of procedure cfree [2019-11-07 00:31:05,037 INFO L130 BoogieDeclarations]: Found specification of procedure alloca [2019-11-07 00:31:05,038 INFO L130 BoogieDeclarations]: Found specification of procedure valloc [2019-11-07 00:31:05,038 INFO L130 BoogieDeclarations]: Found specification of procedure posix_memalign [2019-11-07 00:31:05,039 INFO L130 BoogieDeclarations]: Found specification of procedure aligned_alloc [2019-11-07 00:31:05,039 INFO L130 BoogieDeclarations]: Found specification of procedure abort [2019-11-07 00:31:05,039 INFO L130 BoogieDeclarations]: Found specification of procedure atexit [2019-11-07 00:31:05,039 INFO L130 BoogieDeclarations]: Found specification of procedure at_quick_exit [2019-11-07 00:31:05,039 INFO L130 BoogieDeclarations]: Found specification of procedure on_exit [2019-11-07 00:31:05,039 INFO L130 BoogieDeclarations]: Found specification of procedure exit [2019-11-07 00:31:05,040 INFO L130 BoogieDeclarations]: Found specification of procedure quick_exit [2019-11-07 00:31:05,040 INFO L130 BoogieDeclarations]: Found specification of procedure _Exit [2019-11-07 00:31:05,040 INFO L130 BoogieDeclarations]: Found specification of procedure getenv [2019-11-07 00:31:05,040 INFO L130 BoogieDeclarations]: Found specification of procedure putenv [2019-11-07 00:31:05,040 INFO L130 BoogieDeclarations]: Found specification of procedure setenv [2019-11-07 00:31:05,041 INFO L130 BoogieDeclarations]: Found specification of procedure unsetenv [2019-11-07 00:31:05,041 INFO L130 BoogieDeclarations]: Found specification of procedure clearenv [2019-11-07 00:31:05,042 INFO L130 BoogieDeclarations]: Found specification of procedure mktemp [2019-11-07 00:31:05,042 INFO L130 BoogieDeclarations]: Found specification of procedure mkstemp [2019-11-07 00:31:05,043 INFO L130 BoogieDeclarations]: Found specification of procedure mkstemps [2019-11-07 00:31:05,043 INFO L130 BoogieDeclarations]: Found specification of procedure mkdtemp [2019-11-07 00:31:05,043 INFO L130 BoogieDeclarations]: Found specification of procedure system [2019-11-07 00:31:05,043 INFO L130 BoogieDeclarations]: Found specification of procedure realpath [2019-11-07 00:31:05,043 INFO L130 BoogieDeclarations]: Found specification of procedure bsearch [2019-11-07 00:31:05,043 INFO L130 BoogieDeclarations]: Found specification of procedure qsort [2019-11-07 00:31:05,043 INFO L130 BoogieDeclarations]: Found specification of procedure abs [2019-11-07 00:31:05,043 INFO L130 BoogieDeclarations]: Found specification of procedure labs [2019-11-07 00:31:05,043 INFO L130 BoogieDeclarations]: Found specification of procedure llabs [2019-11-07 00:31:05,043 INFO L130 BoogieDeclarations]: Found specification of procedure div [2019-11-07 00:31:05,044 INFO L130 BoogieDeclarations]: Found specification of procedure ldiv [2019-11-07 00:31:05,044 INFO L130 BoogieDeclarations]: Found specification of procedure lldiv [2019-11-07 00:31:05,044 INFO L130 BoogieDeclarations]: Found specification of procedure ecvt [2019-11-07 00:31:05,044 INFO L130 BoogieDeclarations]: Found specification of procedure fcvt [2019-11-07 00:31:05,044 INFO L130 BoogieDeclarations]: Found specification of procedure gcvt [2019-11-07 00:31:05,044 INFO L130 BoogieDeclarations]: Found specification of procedure qecvt [2019-11-07 00:31:05,044 INFO L130 BoogieDeclarations]: Found specification of procedure qfcvt [2019-11-07 00:31:05,045 INFO L130 BoogieDeclarations]: Found specification of procedure qgcvt [2019-11-07 00:31:05,045 INFO L130 BoogieDeclarations]: Found specification of procedure ecvt_r [2019-11-07 00:31:05,045 INFO L130 BoogieDeclarations]: Found specification of procedure fcvt_r [2019-11-07 00:31:05,045 INFO L130 BoogieDeclarations]: Found specification of procedure qecvt_r [2019-11-07 00:31:05,045 INFO L130 BoogieDeclarations]: Found specification of procedure qfcvt_r [2019-11-07 00:31:05,045 INFO L130 BoogieDeclarations]: Found specification of procedure mblen [2019-11-07 00:31:05,045 INFO L130 BoogieDeclarations]: Found specification of procedure mbtowc [2019-11-07 00:31:05,046 INFO L130 BoogieDeclarations]: Found specification of procedure wctomb [2019-11-07 00:31:05,046 INFO L130 BoogieDeclarations]: Found specification of procedure mbstowcs [2019-11-07 00:31:05,046 INFO L130 BoogieDeclarations]: Found specification of procedure wcstombs [2019-11-07 00:31:05,046 INFO L130 BoogieDeclarations]: Found specification of procedure rpmatch [2019-11-07 00:31:05,046 INFO L130 BoogieDeclarations]: Found specification of procedure getsubopt [2019-11-07 00:31:05,046 INFO L130 BoogieDeclarations]: Found specification of procedure getloadavg [2019-11-07 00:31:05,046 INFO L130 BoogieDeclarations]: Found specification of procedure myexit [2019-11-07 00:31:05,047 INFO L130 BoogieDeclarations]: Found specification of procedure sll_create [2019-11-07 00:31:05,047 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2019-11-07 00:31:05,047 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2019-11-07 00:31:05,047 INFO L130 BoogieDeclarations]: Found specification of procedure node_create_with_sublist [2019-11-07 00:31:05,047 INFO L130 BoogieDeclarations]: Found specification of procedure sll_length [2019-11-07 00:31:05,047 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2019-11-07 00:31:05,047 INFO L130 BoogieDeclarations]: Found specification of procedure sll_append [2019-11-07 00:31:05,048 INFO L130 BoogieDeclarations]: Found specification of procedure sll_hierarchical_destroy [2019-11-07 00:31:05,048 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2019-11-07 00:31:05,048 INFO L130 BoogieDeclarations]: Found specification of procedure main [2019-11-07 00:31:05,048 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2019-11-07 00:31:05,048 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$ [2019-11-07 00:31:05,048 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2019-11-07 00:31:05,048 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2019-11-07 00:31:05,439 INFO L688 $ProcedureCfgBuilder]: dead code at ProgramPoint myexitFINAL: assume true; [2019-11-07 00:31:05,690 INFO L279 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2019-11-07 00:31:05,690 INFO L284 CfgBuilder]: Removed 9 assume(true) statements. [2019-11-07 00:31:05,692 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 07.11 12:31:05 BoogieIcfgContainer [2019-11-07 00:31:05,692 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2019-11-07 00:31:05,693 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2019-11-07 00:31:05,693 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2019-11-07 00:31:05,696 INFO L275 PluginConnector]: TraceAbstraction initialized [2019-11-07 00:31:05,696 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 07.11 12:31:04" (1/3) ... [2019-11-07 00:31:05,697 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@784714eb and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 07.11 12:31:05, skipping insertion in model container [2019-11-07 00:31:05,697 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 12:31:04" (2/3) ... [2019-11-07 00:31:05,698 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@784714eb and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 07.11 12:31:05, skipping insertion in model container [2019-11-07 00:31:05,698 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 07.11 12:31:05" (3/3) ... [2019-11-07 00:31:05,700 INFO L109 eAbstractionObserver]: Analyzing ICFG sll_of_sll_nondet_append-1.i [2019-11-07 00:31:05,710 INFO L152 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2019-11-07 00:31:05,718 INFO L164 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2019-11-07 00:31:05,731 INFO L249 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2019-11-07 00:31:05,756 INFO L373 AbstractCegarLoop]: Interprodecural is true [2019-11-07 00:31:05,757 INFO L374 AbstractCegarLoop]: Hoare is true [2019-11-07 00:31:05,757 INFO L375 AbstractCegarLoop]: Compute interpolants for FPandBP [2019-11-07 00:31:05,757 INFO L376 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2019-11-07 00:31:05,758 INFO L377 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2019-11-07 00:31:05,758 INFO L378 AbstractCegarLoop]: Difference is false [2019-11-07 00:31:05,758 INFO L379 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2019-11-07 00:31:05,758 INFO L383 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2019-11-07 00:31:05,778 INFO L276 IsEmpty]: Start isEmpty. Operand 69 states. [2019-11-07 00:31:05,785 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 12 [2019-11-07 00:31:05,785 INFO L402 BasicCegarLoop]: Found error trace [2019-11-07 00:31:05,786 INFO L410 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-11-07 00:31:05,788 INFO L410 AbstractCegarLoop]: === Iteration 1 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-11-07 00:31:05,794 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-07 00:31:05,795 INFO L82 PathProgramCache]: Analyzing trace with hash 881770505, now seen corresponding path program 1 times [2019-11-07 00:31:05,805 INFO L161 FreeRefinementEngine]: Executing refinement strategy TAIPAN [2019-11-07 00:31:05,805 INFO L337 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [272513652] [2019-11-07 00:31:05,805 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-11-07 00:31:05,902 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-07 00:31:05,941 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-11-07 00:31:05,942 INFO L337 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [272513652] [2019-11-07 00:31:05,942 INFO L218 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-11-07 00:31:05,943 INFO L231 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2019-11-07 00:31:05,945 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1788154176] [2019-11-07 00:31:05,950 INFO L442 AbstractCegarLoop]: Interpolant automaton has 2 states [2019-11-07 00:31:05,952 INFO L141 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy TAIPAN [2019-11-07 00:31:05,967 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2019-11-07 00:31:05,968 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2019-11-07 00:31:05,970 INFO L87 Difference]: Start difference. First operand 69 states. Second operand 2 states. [2019-11-07 00:31:06,005 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-11-07 00:31:06,005 INFO L93 Difference]: Finished difference Result 132 states and 187 transitions. [2019-11-07 00:31:06,006 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2019-11-07 00:31:06,007 INFO L78 Accepts]: Start accepts. Automaton has 2 states. Word has length 11 [2019-11-07 00:31:06,007 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-11-07 00:31:06,016 INFO L225 Difference]: With dead ends: 132 [2019-11-07 00:31:06,017 INFO L226 Difference]: Without dead ends: 52 [2019-11-07 00:31:06,021 INFO L630 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 [2019-11-07 00:31:06,040 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 52 states. [2019-11-07 00:31:06,063 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 52 to 52. [2019-11-07 00:31:06,064 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 52 states. [2019-11-07 00:31:06,066 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 52 states to 52 states and 63 transitions. [2019-11-07 00:31:06,068 INFO L78 Accepts]: Start accepts. Automaton has 52 states and 63 transitions. Word has length 11 [2019-11-07 00:31:06,069 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-11-07 00:31:06,069 INFO L462 AbstractCegarLoop]: Abstraction has 52 states and 63 transitions. [2019-11-07 00:31:06,069 INFO L463 AbstractCegarLoop]: Interpolant automaton has 2 states. [2019-11-07 00:31:06,069 INFO L276 IsEmpty]: Start isEmpty. Operand 52 states and 63 transitions. [2019-11-07 00:31:06,070 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 12 [2019-11-07 00:31:06,070 INFO L402 BasicCegarLoop]: Found error trace [2019-11-07 00:31:06,070 INFO L410 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-11-07 00:31:06,071 INFO L410 AbstractCegarLoop]: === Iteration 2 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-11-07 00:31:06,071 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-07 00:31:06,071 INFO L82 PathProgramCache]: Analyzing trace with hash 857758959, now seen corresponding path program 1 times [2019-11-07 00:31:06,072 INFO L161 FreeRefinementEngine]: Executing refinement strategy TAIPAN [2019-11-07 00:31:06,072 INFO L337 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1136933820] [2019-11-07 00:31:06,072 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-11-07 00:31:06,094 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-07 00:31:06,184 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-11-07 00:31:06,184 INFO L337 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1136933820] [2019-11-07 00:31:06,185 INFO L218 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-11-07 00:31:06,185 INFO L231 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2019-11-07 00:31:06,185 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [565388117] [2019-11-07 00:31:06,187 INFO L442 AbstractCegarLoop]: Interpolant automaton has 3 states [2019-11-07 00:31:06,188 INFO L141 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy TAIPAN [2019-11-07 00:31:06,189 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2019-11-07 00:31:06,189 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2019-11-07 00:31:06,189 INFO L87 Difference]: Start difference. First operand 52 states and 63 transitions. Second operand 3 states. [2019-11-07 00:31:06,260 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-11-07 00:31:06,260 INFO L93 Difference]: Finished difference Result 76 states and 96 transitions. [2019-11-07 00:31:06,261 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2019-11-07 00:31:06,261 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 11 [2019-11-07 00:31:06,261 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-11-07 00:31:06,265 INFO L225 Difference]: With dead ends: 76 [2019-11-07 00:31:06,265 INFO L226 Difference]: Without dead ends: 59 [2019-11-07 00:31:06,267 INFO L630 BasicCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2019-11-07 00:31:06,268 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 59 states. [2019-11-07 00:31:06,285 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 59 to 53. [2019-11-07 00:31:06,286 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 53 states. [2019-11-07 00:31:06,291 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 53 states to 53 states and 64 transitions. [2019-11-07 00:31:06,291 INFO L78 Accepts]: Start accepts. Automaton has 53 states and 64 transitions. Word has length 11 [2019-11-07 00:31:06,292 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-11-07 00:31:06,292 INFO L462 AbstractCegarLoop]: Abstraction has 53 states and 64 transitions. [2019-11-07 00:31:06,292 INFO L463 AbstractCegarLoop]: Interpolant automaton has 3 states. [2019-11-07 00:31:06,292 INFO L276 IsEmpty]: Start isEmpty. Operand 53 states and 64 transitions. [2019-11-07 00:31:06,293 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 17 [2019-11-07 00:31:06,294 INFO L402 BasicCegarLoop]: Found error trace [2019-11-07 00:31:06,294 INFO L410 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-11-07 00:31:06,294 INFO L410 AbstractCegarLoop]: === Iteration 3 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-11-07 00:31:06,295 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-07 00:31:06,295 INFO L82 PathProgramCache]: Analyzing trace with hash 1045120254, now seen corresponding path program 1 times [2019-11-07 00:31:06,295 INFO L161 FreeRefinementEngine]: Executing refinement strategy TAIPAN [2019-11-07 00:31:06,295 INFO L337 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1507245374] [2019-11-07 00:31:06,295 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-11-07 00:31:06,344 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-07 00:31:06,413 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2019-11-07 00:31:06,414 INFO L337 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1507245374] [2019-11-07 00:31:06,414 INFO L218 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-11-07 00:31:06,414 INFO L231 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2019-11-07 00:31:06,415 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1599947271] [2019-11-07 00:31:06,415 INFO L442 AbstractCegarLoop]: Interpolant automaton has 4 states [2019-11-07 00:31:06,415 INFO L141 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy TAIPAN [2019-11-07 00:31:06,416 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2019-11-07 00:31:06,416 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2019-11-07 00:31:06,416 INFO L87 Difference]: Start difference. First operand 53 states and 64 transitions. Second operand 4 states. [2019-11-07 00:31:06,495 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-11-07 00:31:06,495 INFO L93 Difference]: Finished difference Result 79 states and 99 transitions. [2019-11-07 00:31:06,496 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2019-11-07 00:31:06,496 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 16 [2019-11-07 00:31:06,496 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-11-07 00:31:06,499 INFO L225 Difference]: With dead ends: 79 [2019-11-07 00:31:06,499 INFO L226 Difference]: Without dead ends: 59 [2019-11-07 00:31:06,500 INFO L630 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 [2019-11-07 00:31:06,500 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 59 states. [2019-11-07 00:31:06,506 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 59 to 57. [2019-11-07 00:31:06,507 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 57 states. [2019-11-07 00:31:06,508 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 57 states to 57 states and 69 transitions. [2019-11-07 00:31:06,508 INFO L78 Accepts]: Start accepts. Automaton has 57 states and 69 transitions. Word has length 16 [2019-11-07 00:31:06,508 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-11-07 00:31:06,508 INFO L462 AbstractCegarLoop]: Abstraction has 57 states and 69 transitions. [2019-11-07 00:31:06,509 INFO L463 AbstractCegarLoop]: Interpolant automaton has 4 states. [2019-11-07 00:31:06,509 INFO L276 IsEmpty]: Start isEmpty. Operand 57 states and 69 transitions. [2019-11-07 00:31:06,511 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 39 [2019-11-07 00:31:06,511 INFO L402 BasicCegarLoop]: Found error trace [2019-11-07 00:31:06,512 INFO L410 BasicCegarLoop]: trace histogram [2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-11-07 00:31:06,512 INFO L410 AbstractCegarLoop]: === Iteration 4 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-11-07 00:31:06,512 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-07 00:31:06,512 INFO L82 PathProgramCache]: Analyzing trace with hash 685223862, now seen corresponding path program 1 times [2019-11-07 00:31:06,516 INFO L161 FreeRefinementEngine]: Executing refinement strategy TAIPAN [2019-11-07 00:31:06,516 INFO L337 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1836875672] [2019-11-07 00:31:06,516 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-11-07 00:31:06,552 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-07 00:31:06,673 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 4 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-11-07 00:31:06,673 INFO L337 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1836875672] [2019-11-07 00:31:06,673 INFO L218 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-11-07 00:31:06,674 INFO L231 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2019-11-07 00:31:06,674 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [306447503] [2019-11-07 00:31:06,674 INFO L442 AbstractCegarLoop]: Interpolant automaton has 9 states [2019-11-07 00:31:06,675 INFO L141 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy TAIPAN [2019-11-07 00:31:06,675 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2019-11-07 00:31:06,675 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=57, Unknown=0, NotChecked=0, Total=72 [2019-11-07 00:31:06,675 INFO L87 Difference]: Start difference. First operand 57 states and 69 transitions. Second operand 9 states. [2019-11-07 00:31:06,875 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-11-07 00:31:06,875 INFO L93 Difference]: Finished difference Result 130 states and 161 transitions. [2019-11-07 00:31:06,876 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2019-11-07 00:31:06,876 INFO L78 Accepts]: Start accepts. Automaton has 9 states. Word has length 38 [2019-11-07 00:31:06,877 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-11-07 00:31:06,878 INFO L225 Difference]: With dead ends: 130 [2019-11-07 00:31:06,878 INFO L226 Difference]: Without dead ends: 84 [2019-11-07 00:31:06,879 INFO L630 BasicCegarLoop]: 0 DeclaredPredicates, 12 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=27, Invalid=105, Unknown=0, NotChecked=0, Total=132 [2019-11-07 00:31:06,880 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 84 states. [2019-11-07 00:31:06,890 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 84 to 80. [2019-11-07 00:31:06,891 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 80 states. [2019-11-07 00:31:06,892 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 80 states to 80 states and 100 transitions. [2019-11-07 00:31:06,892 INFO L78 Accepts]: Start accepts. Automaton has 80 states and 100 transitions. Word has length 38 [2019-11-07 00:31:06,895 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-11-07 00:31:06,895 INFO L462 AbstractCegarLoop]: Abstraction has 80 states and 100 transitions. [2019-11-07 00:31:06,895 INFO L463 AbstractCegarLoop]: Interpolant automaton has 9 states. [2019-11-07 00:31:06,895 INFO L276 IsEmpty]: Start isEmpty. Operand 80 states and 100 transitions. [2019-11-07 00:31:06,897 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 44 [2019-11-07 00:31:06,898 INFO L402 BasicCegarLoop]: Found error trace [2019-11-07 00:31:06,898 INFO L410 BasicCegarLoop]: trace histogram [3, 3, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-11-07 00:31:06,898 INFO L410 AbstractCegarLoop]: === Iteration 5 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-11-07 00:31:06,898 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-07 00:31:06,899 INFO L82 PathProgramCache]: Analyzing trace with hash -27576761, now seen corresponding path program 2 times [2019-11-07 00:31:06,899 INFO L161 FreeRefinementEngine]: Executing refinement strategy TAIPAN [2019-11-07 00:31:06,899 INFO L337 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1670204067] [2019-11-07 00:31:06,899 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-11-07 00:31:06,945 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-07 00:31:07,192 INFO L134 CoverageAnalysis]: Checked inductivity of 13 backedges. 0 proven. 13 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-11-07 00:31:07,193 INFO L337 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1670204067] [2019-11-07 00:31:07,193 INFO L337 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1016819883] [2019-11-07 00:31:07,194 INFO L92 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST2 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 [2019-11-07 00:31:07,331 INFO L249 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST2 issued 1 check-sat command(s) [2019-11-07 00:31:07,331 INFO L250 tOrderPrioritization]: Conjunction of SSA is unsat [2019-11-07 00:31:07,333 INFO L256 TraceCheckSpWp]: Trace formula consists of 57 conjuncts, 4 conjunts are in the unsatisfiable core [2019-11-07 00:31:07,346 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2019-11-07 00:31:07,440 INFO L134 CoverageAnalysis]: Checked inductivity of 13 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 13 trivial. 0 not checked. [2019-11-07 00:31:07,440 INFO L321 TraceCheckSpWp]: Computing backward predicates... [2019-11-07 00:31:07,560 INFO L134 CoverageAnalysis]: Checked inductivity of 13 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 13 trivial. 0 not checked. [2019-11-07 00:31:07,561 INFO L218 FreeRefinementEngine]: Constructing automaton from 2 perfect and 1 imperfect interpolant sequences. [2019-11-07 00:31:07,561 INFO L231 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4, 4] imperfect sequences [14] total 18 [2019-11-07 00:31:07,561 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [548645431] [2019-11-07 00:31:07,562 INFO L442 AbstractCegarLoop]: Interpolant automaton has 6 states [2019-11-07 00:31:07,562 INFO L141 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy TAIPAN [2019-11-07 00:31:07,562 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2019-11-07 00:31:07,563 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=44, Invalid=262, Unknown=0, NotChecked=0, Total=306 [2019-11-07 00:31:07,563 INFO L87 Difference]: Start difference. First operand 80 states and 100 transitions. Second operand 6 states. [2019-11-07 00:31:07,673 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-11-07 00:31:07,673 INFO L93 Difference]: Finished difference Result 116 states and 145 transitions. [2019-11-07 00:31:07,673 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2019-11-07 00:31:07,674 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 43 [2019-11-07 00:31:07,674 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-11-07 00:31:07,677 INFO L225 Difference]: With dead ends: 116 [2019-11-07 00:31:07,677 INFO L226 Difference]: Without dead ends: 99 [2019-11-07 00:31:07,678 INFO L630 BasicCegarLoop]: 0 DeclaredPredicates, 101 GetRequests, 83 SyntacticMatches, 0 SemanticMatches, 18 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 21 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=60, Invalid=320, Unknown=0, NotChecked=0, Total=380 [2019-11-07 00:31:07,678 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 99 states. [2019-11-07 00:31:07,696 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 99 to 93. [2019-11-07 00:31:07,698 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 93 states. [2019-11-07 00:31:07,699 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 93 states to 93 states and 117 transitions. [2019-11-07 00:31:07,700 INFO L78 Accepts]: Start accepts. Automaton has 93 states and 117 transitions. Word has length 43 [2019-11-07 00:31:07,700 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-11-07 00:31:07,700 INFO L462 AbstractCegarLoop]: Abstraction has 93 states and 117 transitions. [2019-11-07 00:31:07,700 INFO L463 AbstractCegarLoop]: Interpolant automaton has 6 states. [2019-11-07 00:31:07,700 INFO L276 IsEmpty]: Start isEmpty. Operand 93 states and 117 transitions. [2019-11-07 00:31:07,702 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 55 [2019-11-07 00:31:07,702 INFO L402 BasicCegarLoop]: Found error trace [2019-11-07 00:31:07,702 INFO L410 BasicCegarLoop]: trace histogram [3, 3, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-11-07 00:31:07,909 WARN L499 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 z3 -smt2 -in SMTLIB2_COMPLIANT=true [2019-11-07 00:31:07,910 INFO L410 AbstractCegarLoop]: === Iteration 6 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-11-07 00:31:07,910 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-07 00:31:07,910 INFO L82 PathProgramCache]: Analyzing trace with hash 1977264063, now seen corresponding path program 1 times [2019-11-07 00:31:07,911 INFO L161 FreeRefinementEngine]: Executing refinement strategy TAIPAN [2019-11-07 00:31:07,911 INFO L337 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2063108170] [2019-11-07 00:31:07,911 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-11-07 00:31:07,939 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-07 00:31:08,074 INFO L134 CoverageAnalysis]: Checked inductivity of 13 backedges. 0 proven. 9 refuted. 0 times theorem prover too weak. 4 trivial. 0 not checked. [2019-11-07 00:31:08,074 INFO L337 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2063108170] [2019-11-07 00:31:08,074 INFO L337 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1098675115] [2019-11-07 00:31:08,075 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 3 with z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 3 with z3 -smt2 -in SMTLIB2_COMPLIANT=true [2019-11-07 00:31:08,194 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-07 00:31:08,196 INFO L256 TraceCheckSpWp]: Trace formula consists of 220 conjuncts, 10 conjunts are in the unsatisfiable core [2019-11-07 00:31:08,200 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2019-11-07 00:31:08,254 INFO L134 CoverageAnalysis]: Checked inductivity of 13 backedges. 13 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-11-07 00:31:08,254 INFO L321 TraceCheckSpWp]: Computing backward predicates... [2019-11-07 00:31:08,486 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-11-07 00:31:08,564 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-11-07 00:31:08,618 INFO L134 CoverageAnalysis]: Checked inductivity of 13 backedges. 13 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-11-07 00:31:08,618 INFO L218 FreeRefinementEngine]: Constructing automaton from 2 perfect and 1 imperfect interpolant sequences. [2019-11-07 00:31:08,618 INFO L231 FreeRefinementEngine]: Number of different interpolants: perfect sequences [10, 10] imperfect sequences [11] total 18 [2019-11-07 00:31:08,619 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [597704171] [2019-11-07 00:31:08,619 INFO L442 AbstractCegarLoop]: Interpolant automaton has 15 states [2019-11-07 00:31:08,619 INFO L141 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy TAIPAN [2019-11-07 00:31:08,620 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 15 interpolants. [2019-11-07 00:31:08,620 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=46, Invalid=260, Unknown=0, NotChecked=0, Total=306 [2019-11-07 00:31:08,620 INFO L87 Difference]: Start difference. First operand 93 states and 117 transitions. Second operand 15 states. [2019-11-07 00:31:08,889 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-11-07 00:31:08,889 INFO L93 Difference]: Finished difference Result 178 states and 223 transitions. [2019-11-07 00:31:08,889 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2019-11-07 00:31:08,890 INFO L78 Accepts]: Start accepts. Automaton has 15 states. Word has length 54 [2019-11-07 00:31:08,890 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-11-07 00:31:08,891 INFO L225 Difference]: With dead ends: 178 [2019-11-07 00:31:08,891 INFO L226 Difference]: Without dead ends: 94 [2019-11-07 00:31:08,893 INFO L630 BasicCegarLoop]: 0 DeclaredPredicates, 121 GetRequests, 96 SyntacticMatches, 6 SemanticMatches, 19 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 32 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=61, Invalid=359, Unknown=0, NotChecked=0, Total=420 [2019-11-07 00:31:08,893 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 94 states. [2019-11-07 00:31:08,906 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 94 to 89. [2019-11-07 00:31:08,906 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 89 states. [2019-11-07 00:31:08,907 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 89 states to 89 states and 114 transitions. [2019-11-07 00:31:08,907 INFO L78 Accepts]: Start accepts. Automaton has 89 states and 114 transitions. Word has length 54 [2019-11-07 00:31:08,908 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-11-07 00:31:08,908 INFO L462 AbstractCegarLoop]: Abstraction has 89 states and 114 transitions. [2019-11-07 00:31:08,908 INFO L463 AbstractCegarLoop]: Interpolant automaton has 15 states. [2019-11-07 00:31:08,908 INFO L276 IsEmpty]: Start isEmpty. Operand 89 states and 114 transitions. [2019-11-07 00:31:08,909 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 58 [2019-11-07 00:31:08,910 INFO L402 BasicCegarLoop]: Found error trace [2019-11-07 00:31:08,912 INFO L410 BasicCegarLoop]: trace histogram [3, 3, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-11-07 00:31:09,121 WARN L499 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 3 z3 -smt2 -in SMTLIB2_COMPLIANT=true [2019-11-07 00:31:09,121 INFO L410 AbstractCegarLoop]: === Iteration 7 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-11-07 00:31:09,121 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-07 00:31:09,121 INFO L82 PathProgramCache]: Analyzing trace with hash -694434935, now seen corresponding path program 1 times [2019-11-07 00:31:09,122 INFO L161 FreeRefinementEngine]: Executing refinement strategy TAIPAN [2019-11-07 00:31:09,122 INFO L337 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1335301982] [2019-11-07 00:31:09,122 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-11-07 00:31:09,149 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-07 00:31:09,289 INFO L134 CoverageAnalysis]: Checked inductivity of 14 backedges. 0 proven. 10 refuted. 0 times theorem prover too weak. 4 trivial. 0 not checked. [2019-11-07 00:31:09,290 INFO L337 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1335301982] [2019-11-07 00:31:09,290 INFO L337 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [163848256] [2019-11-07 00:31:09,290 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 4 with z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 4 with z3 -smt2 -in SMTLIB2_COMPLIANT=true [2019-11-07 00:31:09,416 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-07 00:31:09,417 INFO L256 TraceCheckSpWp]: Trace formula consists of 242 conjuncts, 11 conjunts are in the unsatisfiable core [2019-11-07 00:31:09,420 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2019-11-07 00:31:09,468 INFO L134 CoverageAnalysis]: Checked inductivity of 14 backedges. 13 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-11-07 00:31:09,468 INFO L321 TraceCheckSpWp]: Computing backward predicates... [2019-11-07 00:31:09,774 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-11-07 00:31:09,838 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-11-07 00:31:09,912 INFO L134 CoverageAnalysis]: Checked inductivity of 14 backedges. 13 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-11-07 00:31:09,913 INFO L337 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleAbstractInterpretation [139686729] [2019-11-07 00:31:09,918 INFO L211 CegarAbsIntRunner]: Running AI on error trace of length 58 [2019-11-07 00:31:09,956 INFO L148 AbstractInterpreter]: Using domain IntervalDomain [2019-11-07 00:31:09,957 INFO L101 FixpointEngine]: Starting fixpoint engine with domain IntervalDomain (maxUnwinding=3, maxParallelStates=2) [2019-11-07 00:31:10,017 INFO L266 AbstractInterpreter]: Error location(s) were unreachable [2019-11-07 00:31:10,018 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 32 variables. [2019-11-07 00:31:10,021 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-07 00:31:10,022 INFO L536 sIntCurrentIteration]: Generating AbsInt predicates [2019-11-07 00:31:10,063 INFO L227 lantSequenceWeakener]: Weakened 4 states. On average, predicates are now at 100% of their original sizes. [2019-11-07 00:31:10,063 INFO L551 sIntCurrentIteration]: Unifying AI predicates [2019-11-07 00:31:10,065 INFO L553 sIntCurrentIteration]: We unified 56 AI predicates to 56 [2019-11-07 00:31:10,066 INFO L562 sIntCurrentIteration]: Finished generation of AbsInt predicates [2019-11-07 00:31:10,066 INFO L218 FreeRefinementEngine]: Constructing automaton from 1 perfect and 3 imperfect interpolant sequences. [2019-11-07 00:31:10,066 INFO L231 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [12, 11, 11] total 20 [2019-11-07 00:31:10,067 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [784848020] [2019-11-07 00:31:10,067 INFO L442 AbstractCegarLoop]: Interpolant automaton has 2 states [2019-11-07 00:31:10,068 INFO L141 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy TAIPAN [2019-11-07 00:31:10,068 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2019-11-07 00:31:10,068 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=55, Invalid=325, Unknown=0, NotChecked=0, Total=380 [2019-11-07 00:31:10,069 INFO L87 Difference]: Start difference. First operand 89 states and 114 transitions. Second operand 2 states. [2019-11-07 00:31:10,071 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-11-07 00:31:10,071 INFO L93 Difference]: Finished difference Result 89 states and 114 transitions. [2019-11-07 00:31:10,071 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2019-11-07 00:31:10,071 INFO L78 Accepts]: Start accepts. Automaton has 2 states. Word has length 57 [2019-11-07 00:31:10,072 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-11-07 00:31:10,072 INFO L225 Difference]: With dead ends: 89 [2019-11-07 00:31:10,072 INFO L226 Difference]: Without dead ends: 0 [2019-11-07 00:31:10,073 INFO L630 BasicCegarLoop]: 0 DeclaredPredicates, 125 GetRequests, 101 SyntacticMatches, 6 SemanticMatches, 18 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 48 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=55, Invalid=325, Unknown=0, NotChecked=0, Total=380 [2019-11-07 00:31:10,074 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2019-11-07 00:31:10,074 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2019-11-07 00:31:10,074 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 0 states. [2019-11-07 00:31:10,074 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2019-11-07 00:31:10,074 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 57 [2019-11-07 00:31:10,074 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-11-07 00:31:10,075 INFO L462 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2019-11-07 00:31:10,075 INFO L463 AbstractCegarLoop]: Interpolant automaton has 2 states. [2019-11-07 00:31:10,075 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2019-11-07 00:31:10,075 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2019-11-07 00:31:10,278 WARN L499 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 4 z3 -smt2 -in SMTLIB2_COMPLIANT=true [2019-11-07 00:31:10,283 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends 0 states and 0 transitions. [2019-11-07 00:31:10,356 INFO L443 ceAbstractionStarter]: For program point ULTIMATE.initFINAL(line -1) no Hoare annotation was computed. [2019-11-07 00:31:10,356 INFO L446 ceAbstractionStarter]: At program point ULTIMATE.initENTRY(line -1) the Hoare annotation is: true [2019-11-07 00:31:10,356 INFO L443 ceAbstractionStarter]: For program point ULTIMATE.initEXIT(line -1) no Hoare annotation was computed. [2019-11-07 00:31:10,356 INFO L446 ceAbstractionStarter]: At program point myexitENTRY(lines 561 563) the Hoare annotation is: true [2019-11-07 00:31:10,356 INFO L443 ceAbstractionStarter]: For program point myexitEXIT(lines 561 563) no Hoare annotation was computed. [2019-11-07 00:31:10,357 INFO L446 ceAbstractionStarter]: At program point L562(line 562) the Hoare annotation is: true [2019-11-07 00:31:10,357 INFO L446 ceAbstractionStarter]: At program point sll_appendENTRY(lines 594 606) the Hoare annotation is: true [2019-11-07 00:31:10,357 INFO L443 ceAbstractionStarter]: For program point sll_appendEXIT(lines 594 606) no Hoare annotation was computed. [2019-11-07 00:31:10,357 INFO L443 ceAbstractionStarter]: For program point L598(lines 598 605) no Hoare annotation was computed. [2019-11-07 00:31:10,357 INFO L443 ceAbstractionStarter]: For program point L599-1(lines 599 601) no Hoare annotation was computed. [2019-11-07 00:31:10,357 INFO L446 ceAbstractionStarter]: At program point L599-3(lines 599 601) the Hoare annotation is: true [2019-11-07 00:31:10,357 INFO L443 ceAbstractionStarter]: For program point L598-2(lines 594 606) no Hoare annotation was computed. [2019-11-07 00:31:10,357 INFO L446 ceAbstractionStarter]: At program point L595(line 595) the Hoare annotation is: true [2019-11-07 00:31:10,357 INFO L443 ceAbstractionStarter]: For program point L599-4(lines 599 601) no Hoare annotation was computed. [2019-11-07 00:31:10,357 INFO L443 ceAbstractionStarter]: For program point L595-1(line 595) no Hoare annotation was computed. [2019-11-07 00:31:10,357 INFO L443 ceAbstractionStarter]: For program point __bswap_32ENTRY(lines 64 68) no Hoare annotation was computed. [2019-11-07 00:31:10,357 INFO L443 ceAbstractionStarter]: For program point __bswap_32FINAL(lines 64 68) no Hoare annotation was computed. [2019-11-07 00:31:10,358 INFO L443 ceAbstractionStarter]: For program point __bswap_32EXIT(lines 64 68) no Hoare annotation was computed. [2019-11-07 00:31:10,358 INFO L443 ceAbstractionStarter]: For program point sll_createEXIT(lines 564 576) no Hoare annotation was computed. [2019-11-07 00:31:10,358 INFO L446 ceAbstractionStarter]: At program point L569(line 569) the Hoare annotation is: true [2019-11-07 00:31:10,358 INFO L443 ceAbstractionStarter]: For program point L568(lines 568 570) no Hoare annotation was computed. [2019-11-07 00:31:10,358 INFO L443 ceAbstractionStarter]: For program point L568-1(lines 568 570) no Hoare annotation was computed. [2019-11-07 00:31:10,358 INFO L446 ceAbstractionStarter]: At program point sll_createENTRY(lines 564 576) the Hoare annotation is: true [2019-11-07 00:31:10,358 INFO L446 ceAbstractionStarter]: At program point L566-2(lines 566 574) the Hoare annotation is: true [2019-11-07 00:31:10,358 INFO L443 ceAbstractionStarter]: For program point L566-3(lines 566 574) no Hoare annotation was computed. [2019-11-07 00:31:10,359 INFO L443 ceAbstractionStarter]: For program point sll_createFINAL(lines 564 576) no Hoare annotation was computed. [2019-11-07 00:31:10,359 INFO L443 ceAbstractionStarter]: For program point __bswap_64ENTRY(lines 69 73) no Hoare annotation was computed. [2019-11-07 00:31:10,359 INFO L443 ceAbstractionStarter]: For program point __bswap_64FINAL(lines 69 73) no Hoare annotation was computed. [2019-11-07 00:31:10,359 INFO L443 ceAbstractionStarter]: For program point __bswap_64EXIT(lines 69 73) no Hoare annotation was computed. [2019-11-07 00:31:10,359 INFO L443 ceAbstractionStarter]: For program point ULTIMATE.startEXIT(line -1) no Hoare annotation was computed. [2019-11-07 00:31:10,359 INFO L446 ceAbstractionStarter]: At program point L-1(line -1) the Hoare annotation is: true [2019-11-07 00:31:10,359 INFO L446 ceAbstractionStarter]: At program point ULTIMATE.startENTRY(line -1) the Hoare annotation is: true [2019-11-07 00:31:10,359 INFO L443 ceAbstractionStarter]: For program point ULTIMATE.startFINAL(line -1) no Hoare annotation was computed. [2019-11-07 00:31:10,359 INFO L446 ceAbstractionStarter]: At program point node_create_with_sublistENTRY(lines 577 585) the Hoare annotation is: true [2019-11-07 00:31:10,360 INFO L443 ceAbstractionStarter]: For program point node_create_with_sublistFINAL(lines 577 585) no Hoare annotation was computed. [2019-11-07 00:31:10,360 INFO L443 ceAbstractionStarter]: For program point L582(line 582) no Hoare annotation was computed. [2019-11-07 00:31:10,360 INFO L446 ceAbstractionStarter]: At program point L580(line 580) the Hoare annotation is: true [2019-11-07 00:31:10,360 INFO L443 ceAbstractionStarter]: For program point L579(lines 579 581) no Hoare annotation was computed. [2019-11-07 00:31:10,360 INFO L446 ceAbstractionStarter]: At program point L579-1(lines 579 581) the Hoare annotation is: true [2019-11-07 00:31:10,360 INFO L443 ceAbstractionStarter]: For program point node_create_with_sublistEXIT(lines 577 585) no Hoare annotation was computed. [2019-11-07 00:31:10,360 INFO L443 ceAbstractionStarter]: For program point mainEXIT(lines 620 653) no Hoare annotation was computed. [2019-11-07 00:31:10,360 INFO L443 ceAbstractionStarter]: For program point L626-1(line 626) no Hoare annotation was computed. [2019-11-07 00:31:10,361 INFO L443 ceAbstractionStarter]: For program point mainErr0ASSERT_VIOLATIONERROR_FUNCTION(line 651) no Hoare annotation was computed. [2019-11-07 00:31:10,361 INFO L443 ceAbstractionStarter]: For program point L626-3(lines 626 628) no Hoare annotation was computed. [2019-11-07 00:31:10,361 INFO L439 ceAbstractionStarter]: At program point L626-5(lines 626 628) the Hoare annotation is: false [2019-11-07 00:31:10,361 INFO L443 ceAbstractionStarter]: For program point L639(lines 639 646) no Hoare annotation was computed. [2019-11-07 00:31:10,361 INFO L443 ceAbstractionStarter]: For program point L631-2(lines 631 648) no Hoare annotation was computed. [2019-11-07 00:31:10,361 INFO L439 ceAbstractionStarter]: At program point L631-3(lines 631 648) the Hoare annotation is: (and (= 0 main_~ptr~0.base) (= main_~ptr~0.offset 0)) [2019-11-07 00:31:10,361 INFO L439 ceAbstractionStarter]: At program point L627(line 627) the Hoare annotation is: false [2019-11-07 00:31:10,362 INFO L443 ceAbstractionStarter]: For program point L631-4(lines 631 648) no Hoare annotation was computed. [2019-11-07 00:31:10,362 INFO L443 ceAbstractionStarter]: For program point L627-1(lines 626 628) no Hoare annotation was computed. [2019-11-07 00:31:10,362 INFO L439 ceAbstractionStarter]: At program point L636(line 636) the Hoare annotation is: false [2019-11-07 00:31:10,362 INFO L443 ceAbstractionStarter]: For program point L636-1(line 636) no Hoare annotation was computed. [2019-11-07 00:31:10,362 INFO L443 ceAbstractionStarter]: For program point L632(lines 632 634) no Hoare annotation was computed. [2019-11-07 00:31:10,362 INFO L443 ceAbstractionStarter]: For program point mainFINAL(lines 620 653) no Hoare annotation was computed. [2019-11-07 00:31:10,362 INFO L446 ceAbstractionStarter]: At program point L649(line 649) the Hoare annotation is: true [2019-11-07 00:31:10,362 INFO L443 ceAbstractionStarter]: For program point L649-1(line 649) no Hoare annotation was computed. [2019-11-07 00:31:10,362 INFO L439 ceAbstractionStarter]: At program point L645(lines 620 653) the Hoare annotation is: false [2019-11-07 00:31:10,362 INFO L446 ceAbstractionStarter]: At program point mainENTRY(lines 620 653) the Hoare annotation is: true [2019-11-07 00:31:10,363 INFO L443 ceAbstractionStarter]: For program point L637(lines 637 646) no Hoare annotation was computed. [2019-11-07 00:31:10,363 INFO L439 ceAbstractionStarter]: At program point L637-1(lines 635 647) the Hoare annotation is: false [2019-11-07 00:31:10,363 INFO L443 ceAbstractionStarter]: For program point L625-2(lines 625 629) no Hoare annotation was computed. [2019-11-07 00:31:10,363 INFO L439 ceAbstractionStarter]: At program point L625-3(lines 625 629) the Hoare annotation is: false [2019-11-07 00:31:10,363 INFO L443 ceAbstractionStarter]: For program point L625-4(lines 625 629) no Hoare annotation was computed. [2019-11-07 00:31:10,363 INFO L443 ceAbstractionStarter]: For program point L642(lines 642 646) no Hoare annotation was computed. [2019-11-07 00:31:10,363 INFO L443 ceAbstractionStarter]: For program point sll_lengthEXIT(lines 586 593) no Hoare annotation was computed. [2019-11-07 00:31:10,363 INFO L446 ceAbstractionStarter]: At program point sll_lengthENTRY(lines 586 593) the Hoare annotation is: true [2019-11-07 00:31:10,363 INFO L446 ceAbstractionStarter]: At program point L588-2(lines 588 591) the Hoare annotation is: true [2019-11-07 00:31:10,363 INFO L443 ceAbstractionStarter]: For program point L588-3(lines 588 591) no Hoare annotation was computed. [2019-11-07 00:31:10,364 INFO L443 ceAbstractionStarter]: For program point sll_lengthFINAL(lines 586 593) no Hoare annotation was computed. [2019-11-07 00:31:10,364 INFO L446 ceAbstractionStarter]: At program point L611-2(lines 611 615) the Hoare annotation is: true [2019-11-07 00:31:10,364 INFO L443 ceAbstractionStarter]: For program point L611-3(lines 611 615) no Hoare annotation was computed. [2019-11-07 00:31:10,364 INFO L446 ceAbstractionStarter]: At program point L608-2(lines 608 618) the Hoare annotation is: true [2019-11-07 00:31:10,364 INFO L443 ceAbstractionStarter]: For program point L608-3(lines 607 619) no Hoare annotation was computed. [2019-11-07 00:31:10,364 INFO L446 ceAbstractionStarter]: At program point sll_hierarchical_destroyENTRY(lines 607 619) the Hoare annotation is: true [2019-11-07 00:31:10,364 INFO L443 ceAbstractionStarter]: For program point sll_hierarchical_destroyEXIT(lines 607 619) no Hoare annotation was computed. [2019-11-07 00:31:10,376 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 07.11 12:31:10 BoogieIcfgContainer [2019-11-07 00:31:10,376 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2019-11-07 00:31:10,379 INFO L168 Benchmark]: Toolchain (without parser) took 6148.52 ms. Allocated memory was 137.4 MB in the beginning and 294.1 MB in the end (delta: 156.8 MB). Free memory was 101.2 MB in the beginning and 174.3 MB in the end (delta: -73.0 MB). Peak memory consumption was 83.7 MB. Max. memory is 7.1 GB. [2019-11-07 00:31:10,380 INFO L168 Benchmark]: CDTParser took 0.22 ms. Allocated memory is still 137.4 MB. Free memory was 120.6 MB in the beginning and 120.3 MB in the end (delta: 210.0 kB). Peak memory consumption was 210.0 kB. Max. memory is 7.1 GB. [2019-11-07 00:31:10,381 INFO L168 Benchmark]: CACSL2BoogieTranslator took 660.38 ms. Allocated memory was 137.4 MB in the beginning and 202.9 MB in the end (delta: 65.5 MB). Free memory was 101.0 MB in the beginning and 167.4 MB in the end (delta: -66.4 MB). Peak memory consumption was 25.9 MB. Max. memory is 7.1 GB. [2019-11-07 00:31:10,381 INFO L168 Benchmark]: Boogie Preprocessor took 77.05 ms. Allocated memory is still 202.9 MB. Free memory was 167.4 MB in the beginning and 163.9 MB in the end (delta: 3.4 MB). Peak memory consumption was 3.4 MB. Max. memory is 7.1 GB. [2019-11-07 00:31:10,382 INFO L168 Benchmark]: RCFGBuilder took 722.82 ms. Allocated memory is still 202.9 MB. Free memory was 163.9 MB in the beginning and 111.4 MB in the end (delta: 52.6 MB). Peak memory consumption was 52.6 MB. Max. memory is 7.1 GB. [2019-11-07 00:31:10,383 INFO L168 Benchmark]: TraceAbstraction took 4683.76 ms. Allocated memory was 202.9 MB in the beginning and 294.1 MB in the end (delta: 91.2 MB). Free memory was 110.7 MB in the beginning and 174.3 MB in the end (delta: -63.6 MB). Peak memory consumption was 27.7 MB. Max. memory is 7.1 GB. [2019-11-07 00:31:10,387 INFO L335 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.22 ms. Allocated memory is still 137.4 MB. Free memory was 120.6 MB in the beginning and 120.3 MB in the end (delta: 210.0 kB). Peak memory consumption was 210.0 kB. Max. memory is 7.1 GB. * CACSL2BoogieTranslator took 660.38 ms. Allocated memory was 137.4 MB in the beginning and 202.9 MB in the end (delta: 65.5 MB). Free memory was 101.0 MB in the beginning and 167.4 MB in the end (delta: -66.4 MB). Peak memory consumption was 25.9 MB. Max. memory is 7.1 GB. * Boogie Preprocessor took 77.05 ms. Allocated memory is still 202.9 MB. Free memory was 167.4 MB in the beginning and 163.9 MB in the end (delta: 3.4 MB). Peak memory consumption was 3.4 MB. Max. memory is 7.1 GB. * RCFGBuilder took 722.82 ms. Allocated memory is still 202.9 MB. Free memory was 163.9 MB in the beginning and 111.4 MB in the end (delta: 52.6 MB). Peak memory consumption was 52.6 MB. Max. memory is 7.1 GB. * TraceAbstraction took 4683.76 ms. Allocated memory was 202.9 MB in the beginning and 294.1 MB in the end (delta: 91.2 MB). Free memory was 110.7 MB in the beginning and 174.3 MB in the end (delta: -63.6 MB). Peak memory consumption was 27.7 MB. Max. memory is 7.1 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - PositiveResult [Line: 651]: call of __VERIFIER_error() unreachable For all program executions holds that call of __VERIFIER_error() unreachable at this location - AllSpecificationsHoldResult: All specifications hold 1 specifications checked. All of them hold - InvariantResult [Line: 611]: Loop Invariant Derived loop invariant: 1 - InvariantResult [Line: 620]: Loop Invariant Derived loop invariant: 0 - InvariantResult [Line: 562]: Loop Invariant Derived loop invariant: 1 - InvariantResult [Line: 631]: Loop Invariant Derived loop invariant: 0 == ptr && ptr == 0 - InvariantResult [Line: 625]: Loop Invariant Derived loop invariant: 0 - InvariantResult [Line: 599]: Loop Invariant Derived loop invariant: 1 - InvariantResult [Line: 608]: Loop Invariant Derived loop invariant: 1 - InvariantResult [Line: 566]: Loop Invariant Derived loop invariant: 1 - InvariantResult [Line: 626]: Loop Invariant Derived loop invariant: 0 - InvariantResult [Line: 635]: Loop Invariant Derived loop invariant: 0 - InvariantResult [Line: 588]: Loop Invariant Derived loop invariant: 1 - StatisticsResult: Ultimate Automizer benchmark data CFG has 11 procedures, 76 locations, 1 error locations. Result: SAFE, OverallTime: 4.6s, OverallIterations: 7, TraceHistogramMax: 3, AutomataDifference: 0.8s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, HoareTripleCheckerStatistics: 383 SDtfs, 192 SDslu, 1239 SDs, 0 SdLazy, 414 SolverSat, 34 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 0.3s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 369 GetRequests, 288 SyntacticMatches, 12 SemanticMatches, 69 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 104 ImplicationChecksByTransitivity, 1.0s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=93occurred in iteration=5, 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, 7 MinimizatonAttempts, 23 StatesRemovedByMinimization, 5 NontrivialMinimizations, HoareAnnotationStatistics: 0.0s HoareAnnotationTime, 28 LocationsWithAnnotation, 85 PreInvPairs, 93 NumberOfFragments, 34 HoareAnnotationTreeSize, 85 FomulaSimplifications, 33 FormulaSimplificationTreeSizeReduction, 0.0s HoareSimplificationTime, 28 FomulaSimplificationsInter, 0 FormulaSimplificationTreeSizeReductionInter, 0.0s HoareSimplificationTimeInter, RefinementEngineStatistics: TRACE_CHECK: 0.0s SsaConstructionTime, 0.2s SatisfiabilityAnalysisTime, 1.9s InterpolantComputationTime, 384 NumberOfCodeBlocks, 352 NumberOfCodeBlocksAsserted, 10 NumberOfCheckSat, 525 ConstructedInterpolants, 0 QuantifiedInterpolants, 64843 SizeOfPredicates, 13 NumberOfNonLiveVariables, 519 ConjunctsInSsa, 25 ConjunctsInUnsatCore, 13 InterpolantComputations, 8 PerfectInterpolantSequences, 91/125 InterpolantCoveringCapability, INVARIANT_SYNTHESIS: No data available, INTERPOLANT_CONSOLIDATION: No data available, ABSTRACT_INTERPRETATION: TIME[ms]: 104, ITERATIONS: 1, WAS_STRONG: 1, WEAKENING_RATIO: 0.9732142857142857, AVG_VARS_REMOVED_DURING_WEAKENING: 1.2678571428571428, AVG_WEAKENED_CONJUNCTS: 0.10714285714285714, PDR: No data available, SIFA: No data available, ReuseStatistics: No data available RESULT: Ultimate proved your program to be correct! Received shutdown request...