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/dll-reverse.i -------------------------------------------------------------------------------- This is Ultimate 0.1.24-f4eb214f-m [2019-10-13 20:12:03,894 INFO L177 SettingsManager]: Resetting all preferences to default values... [2019-10-13 20:12:03,898 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2019-10-13 20:12:03,916 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2019-10-13 20:12:03,916 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2019-10-13 20:12:03,918 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2019-10-13 20:12:03,921 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2019-10-13 20:12:03,930 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2019-10-13 20:12:03,932 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2019-10-13 20:12:03,937 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2019-10-13 20:12:03,938 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2019-10-13 20:12:03,940 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2019-10-13 20:12:03,940 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2019-10-13 20:12:03,942 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2019-10-13 20:12:03,944 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2019-10-13 20:12:03,945 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2019-10-13 20:12:03,947 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2019-10-13 20:12:03,948 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2019-10-13 20:12:03,949 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2019-10-13 20:12:03,954 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2019-10-13 20:12:03,958 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2019-10-13 20:12:03,960 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2019-10-13 20:12:03,964 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2019-10-13 20:12:03,965 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2019-10-13 20:12:03,969 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2019-10-13 20:12:03,969 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2019-10-13 20:12:03,969 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2019-10-13 20:12:03,971 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2019-10-13 20:12:03,973 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2019-10-13 20:12:03,974 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2019-10-13 20:12:03,974 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2019-10-13 20:12:03,975 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2019-10-13 20:12:03,976 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2019-10-13 20:12:03,977 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2019-10-13 20:12:03,977 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2019-10-13 20:12:03,978 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2019-10-13 20:12:03,978 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2019-10-13 20:12:03,978 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2019-10-13 20:12:03,979 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2019-10-13 20:12:03,980 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2019-10-13 20:12:03,980 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2019-10-13 20:12:03,981 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 20:12:03,995 INFO L113 SettingsManager]: Loading preferences was successful [2019-10-13 20:12:03,995 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2019-10-13 20:12:03,996 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2019-10-13 20:12:03,997 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2019-10-13 20:12:03,997 INFO L138 SettingsManager]: * Use SBE=true [2019-10-13 20:12:03,997 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2019-10-13 20:12:03,997 INFO L138 SettingsManager]: * sizeof long=4 [2019-10-13 20:12:03,998 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2019-10-13 20:12:03,998 INFO L138 SettingsManager]: * sizeof POINTER=4 [2019-10-13 20:12:03,998 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2019-10-13 20:12:03,998 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2019-10-13 20:12:03,998 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2019-10-13 20:12:03,998 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2019-10-13 20:12:03,999 INFO L138 SettingsManager]: * sizeof long double=12 [2019-10-13 20:12:03,999 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2019-10-13 20:12:03,999 INFO L138 SettingsManager]: * Use constant arrays=true [2019-10-13 20:12:03,999 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2019-10-13 20:12:03,999 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2019-10-13 20:12:04,000 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2019-10-13 20:12:04,000 INFO L138 SettingsManager]: * To the following directory=./dump/ [2019-10-13 20:12:04,000 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2019-10-13 20:12:04,000 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2019-10-13 20:12:04,000 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2019-10-13 20:12:04,001 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2019-10-13 20:12:04,001 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2019-10-13 20:12:04,001 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2019-10-13 20:12:04,001 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2019-10-13 20:12:04,001 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2019-10-13 20:12:04,002 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 20:12:04,313 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2019-10-13 20:12:04,326 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2019-10-13 20:12:04,329 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2019-10-13 20:12:04,330 INFO L271 PluginConnector]: Initializing CDTParser... [2019-10-13 20:12:04,331 INFO L275 PluginConnector]: CDTParser initialized [2019-10-13 20:12:04,332 INFO L428 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/forester-heap/dll-reverse.i [2019-10-13 20:12:04,411 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/e449ed729/e9522b0cf8de4b4aa4b04423a983eeec/FLAG2f8652487 [2019-10-13 20:12:04,961 INFO L306 CDTParser]: Found 1 translation units. [2019-10-13 20:12:04,962 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/forester-heap/dll-reverse.i [2019-10-13 20:12:04,982 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/e449ed729/e9522b0cf8de4b4aa4b04423a983eeec/FLAG2f8652487 [2019-10-13 20:12:05,205 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/e449ed729/e9522b0cf8de4b4aa4b04423a983eeec [2019-10-13 20:12:05,215 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2019-10-13 20:12:05,217 INFO L131 ToolchainWalker]: Walking toolchain with 4 elements. [2019-10-13 20:12:05,218 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2019-10-13 20:12:05,218 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2019-10-13 20:12:05,222 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2019-10-13 20:12:05,223 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 13.10 08:12:05" (1/1) ... [2019-10-13 20:12:05,225 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@67df4a77 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 08:12:05, skipping insertion in model container [2019-10-13 20:12:05,226 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 13.10 08:12:05" (1/1) ... [2019-10-13 20:12:05,233 INFO L142 MainTranslator]: Starting translation in SV-COMP mode [2019-10-13 20:12:05,283 INFO L173 MainTranslator]: Built tables and reachable declarations [2019-10-13 20:12:05,689 INFO L206 PostProcessor]: Analyzing one entry point: main [2019-10-13 20:12:05,709 INFO L188 MainTranslator]: Completed pre-run [2019-10-13 20:12:05,795 INFO L206 PostProcessor]: Analyzing one entry point: main [2019-10-13 20:12:05,855 INFO L192 MainTranslator]: Completed translation [2019-10-13 20:12:05,856 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 08:12:05 WrapperNode [2019-10-13 20:12:05,856 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2019-10-13 20:12:05,857 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2019-10-13 20:12:05,857 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2019-10-13 20:12:05,857 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2019-10-13 20:12:05,869 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 08:12:05" (1/1) ... [2019-10-13 20:12:05,869 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 08:12:05" (1/1) ... [2019-10-13 20:12:05,886 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 08:12:05" (1/1) ... [2019-10-13 20:12:05,887 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 08:12:05" (1/1) ... [2019-10-13 20:12:05,909 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 08:12:05" (1/1) ... [2019-10-13 20:12:05,921 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 08:12:05" (1/1) ... [2019-10-13 20:12:05,928 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 08:12:05" (1/1) ... [2019-10-13 20:12:05,937 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2019-10-13 20:12:05,943 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2019-10-13 20:12:05,944 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2019-10-13 20:12:05,944 INFO L275 PluginConnector]: RCFGBuilder initialized [2019-10-13 20:12:05,945 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 08:12:05" (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 20:12:05,999 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2019-10-13 20:12:05,999 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2019-10-13 20:12:05,999 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2019-10-13 20:12:06,000 INFO L130 BoogieDeclarations]: Found specification of procedure __ctype_get_mb_cur_max [2019-10-13 20:12:06,000 INFO L130 BoogieDeclarations]: Found specification of procedure atof [2019-10-13 20:12:06,000 INFO L130 BoogieDeclarations]: Found specification of procedure atoi [2019-10-13 20:12:06,000 INFO L130 BoogieDeclarations]: Found specification of procedure atol [2019-10-13 20:12:06,000 INFO L130 BoogieDeclarations]: Found specification of procedure atoll [2019-10-13 20:12:06,001 INFO L130 BoogieDeclarations]: Found specification of procedure strtod [2019-10-13 20:12:06,003 INFO L130 BoogieDeclarations]: Found specification of procedure strtof [2019-10-13 20:12:06,004 INFO L130 BoogieDeclarations]: Found specification of procedure strtold [2019-10-13 20:12:06,004 INFO L130 BoogieDeclarations]: Found specification of procedure strtol [2019-10-13 20:12:06,004 INFO L130 BoogieDeclarations]: Found specification of procedure strtoul [2019-10-13 20:12:06,005 INFO L130 BoogieDeclarations]: Found specification of procedure strtoq [2019-10-13 20:12:06,005 INFO L130 BoogieDeclarations]: Found specification of procedure strtouq [2019-10-13 20:12:06,005 INFO L130 BoogieDeclarations]: Found specification of procedure strtoll [2019-10-13 20:12:06,008 INFO L130 BoogieDeclarations]: Found specification of procedure strtoull [2019-10-13 20:12:06,008 INFO L130 BoogieDeclarations]: Found specification of procedure l64a [2019-10-13 20:12:06,008 INFO L130 BoogieDeclarations]: Found specification of procedure a64l [2019-10-13 20:12:06,008 INFO L130 BoogieDeclarations]: Found specification of procedure select [2019-10-13 20:12:06,008 INFO L130 BoogieDeclarations]: Found specification of procedure pselect [2019-10-13 20:12:06,009 INFO L130 BoogieDeclarations]: Found specification of procedure gnu_dev_major [2019-10-13 20:12:06,009 INFO L130 BoogieDeclarations]: Found specification of procedure gnu_dev_minor [2019-10-13 20:12:06,010 INFO L130 BoogieDeclarations]: Found specification of procedure gnu_dev_makedev [2019-10-13 20:12:06,010 INFO L130 BoogieDeclarations]: Found specification of procedure random [2019-10-13 20:12:06,011 INFO L130 BoogieDeclarations]: Found specification of procedure srandom [2019-10-13 20:12:06,011 INFO L130 BoogieDeclarations]: Found specification of procedure initstate [2019-10-13 20:12:06,011 INFO L130 BoogieDeclarations]: Found specification of procedure setstate [2019-10-13 20:12:06,012 INFO L130 BoogieDeclarations]: Found specification of procedure random_r [2019-10-13 20:12:06,012 INFO L130 BoogieDeclarations]: Found specification of procedure srandom_r [2019-10-13 20:12:06,012 INFO L130 BoogieDeclarations]: Found specification of procedure initstate_r [2019-10-13 20:12:06,012 INFO L130 BoogieDeclarations]: Found specification of procedure setstate_r [2019-10-13 20:12:06,012 INFO L130 BoogieDeclarations]: Found specification of procedure rand [2019-10-13 20:12:06,012 INFO L130 BoogieDeclarations]: Found specification of procedure srand [2019-10-13 20:12:06,013 INFO L130 BoogieDeclarations]: Found specification of procedure rand_r [2019-10-13 20:12:06,013 INFO L130 BoogieDeclarations]: Found specification of procedure drand48 [2019-10-13 20:12:06,013 INFO L130 BoogieDeclarations]: Found specification of procedure erand48 [2019-10-13 20:12:06,015 INFO L130 BoogieDeclarations]: Found specification of procedure lrand48 [2019-10-13 20:12:06,015 INFO L130 BoogieDeclarations]: Found specification of procedure nrand48 [2019-10-13 20:12:06,015 INFO L130 BoogieDeclarations]: Found specification of procedure mrand48 [2019-10-13 20:12:06,015 INFO L130 BoogieDeclarations]: Found specification of procedure jrand48 [2019-10-13 20:12:06,015 INFO L130 BoogieDeclarations]: Found specification of procedure srand48 [2019-10-13 20:12:06,015 INFO L130 BoogieDeclarations]: Found specification of procedure seed48 [2019-10-13 20:12:06,016 INFO L130 BoogieDeclarations]: Found specification of procedure lcong48 [2019-10-13 20:12:06,016 INFO L130 BoogieDeclarations]: Found specification of procedure drand48_r [2019-10-13 20:12:06,016 INFO L130 BoogieDeclarations]: Found specification of procedure erand48_r [2019-10-13 20:12:06,016 INFO L130 BoogieDeclarations]: Found specification of procedure lrand48_r [2019-10-13 20:12:06,016 INFO L130 BoogieDeclarations]: Found specification of procedure nrand48_r [2019-10-13 20:12:06,016 INFO L130 BoogieDeclarations]: Found specification of procedure mrand48_r [2019-10-13 20:12:06,016 INFO L130 BoogieDeclarations]: Found specification of procedure jrand48_r [2019-10-13 20:12:06,017 INFO L130 BoogieDeclarations]: Found specification of procedure srand48_r [2019-10-13 20:12:06,017 INFO L130 BoogieDeclarations]: Found specification of procedure seed48_r [2019-10-13 20:12:06,017 INFO L130 BoogieDeclarations]: Found specification of procedure lcong48_r [2019-10-13 20:12:06,017 INFO L130 BoogieDeclarations]: Found specification of procedure malloc [2019-10-13 20:12:06,017 INFO L130 BoogieDeclarations]: Found specification of procedure calloc [2019-10-13 20:12:06,017 INFO L130 BoogieDeclarations]: Found specification of procedure realloc [2019-10-13 20:12:06,017 INFO L130 BoogieDeclarations]: Found specification of procedure free [2019-10-13 20:12:06,018 INFO L130 BoogieDeclarations]: Found specification of procedure cfree [2019-10-13 20:12:06,018 INFO L130 BoogieDeclarations]: Found specification of procedure alloca [2019-10-13 20:12:06,018 INFO L130 BoogieDeclarations]: Found specification of procedure valloc [2019-10-13 20:12:06,018 INFO L130 BoogieDeclarations]: Found specification of procedure posix_memalign [2019-10-13 20:12:06,018 INFO L130 BoogieDeclarations]: Found specification of procedure aligned_alloc [2019-10-13 20:12:06,019 INFO L130 BoogieDeclarations]: Found specification of procedure abort [2019-10-13 20:12:06,019 INFO L130 BoogieDeclarations]: Found specification of procedure atexit [2019-10-13 20:12:06,019 INFO L130 BoogieDeclarations]: Found specification of procedure at_quick_exit [2019-10-13 20:12:06,019 INFO L130 BoogieDeclarations]: Found specification of procedure on_exit [2019-10-13 20:12:06,020 INFO L130 BoogieDeclarations]: Found specification of procedure exit [2019-10-13 20:12:06,020 INFO L130 BoogieDeclarations]: Found specification of procedure quick_exit [2019-10-13 20:12:06,021 INFO L130 BoogieDeclarations]: Found specification of procedure _Exit [2019-10-13 20:12:06,021 INFO L130 BoogieDeclarations]: Found specification of procedure getenv [2019-10-13 20:12:06,021 INFO L130 BoogieDeclarations]: Found specification of procedure putenv [2019-10-13 20:12:06,021 INFO L130 BoogieDeclarations]: Found specification of procedure setenv [2019-10-13 20:12:06,021 INFO L130 BoogieDeclarations]: Found specification of procedure unsetenv [2019-10-13 20:12:06,022 INFO L130 BoogieDeclarations]: Found specification of procedure clearenv [2019-10-13 20:12:06,022 INFO L130 BoogieDeclarations]: Found specification of procedure mktemp [2019-10-13 20:12:06,022 INFO L130 BoogieDeclarations]: Found specification of procedure mkstemp [2019-10-13 20:12:06,023 INFO L130 BoogieDeclarations]: Found specification of procedure mkstemps [2019-10-13 20:12:06,023 INFO L130 BoogieDeclarations]: Found specification of procedure mkdtemp [2019-10-13 20:12:06,023 INFO L130 BoogieDeclarations]: Found specification of procedure system [2019-10-13 20:12:06,024 INFO L130 BoogieDeclarations]: Found specification of procedure realpath [2019-10-13 20:12:06,024 INFO L130 BoogieDeclarations]: Found specification of procedure bsearch [2019-10-13 20:12:06,024 INFO L130 BoogieDeclarations]: Found specification of procedure qsort [2019-10-13 20:12:06,024 INFO L130 BoogieDeclarations]: Found specification of procedure abs [2019-10-13 20:12:06,024 INFO L130 BoogieDeclarations]: Found specification of procedure labs [2019-10-13 20:12:06,024 INFO L130 BoogieDeclarations]: Found specification of procedure llabs [2019-10-13 20:12:06,025 INFO L130 BoogieDeclarations]: Found specification of procedure div [2019-10-13 20:12:06,025 INFO L130 BoogieDeclarations]: Found specification of procedure ldiv [2019-10-13 20:12:06,026 INFO L130 BoogieDeclarations]: Found specification of procedure lldiv [2019-10-13 20:12:06,026 INFO L130 BoogieDeclarations]: Found specification of procedure ecvt [2019-10-13 20:12:06,027 INFO L130 BoogieDeclarations]: Found specification of procedure fcvt [2019-10-13 20:12:06,027 INFO L130 BoogieDeclarations]: Found specification of procedure gcvt [2019-10-13 20:12:06,027 INFO L130 BoogieDeclarations]: Found specification of procedure qecvt [2019-10-13 20:12:06,027 INFO L130 BoogieDeclarations]: Found specification of procedure qfcvt [2019-10-13 20:12:06,027 INFO L130 BoogieDeclarations]: Found specification of procedure qgcvt [2019-10-13 20:12:06,027 INFO L130 BoogieDeclarations]: Found specification of procedure ecvt_r [2019-10-13 20:12:06,027 INFO L130 BoogieDeclarations]: Found specification of procedure fcvt_r [2019-10-13 20:12:06,028 INFO L130 BoogieDeclarations]: Found specification of procedure qecvt_r [2019-10-13 20:12:06,028 INFO L130 BoogieDeclarations]: Found specification of procedure qfcvt_r [2019-10-13 20:12:06,028 INFO L130 BoogieDeclarations]: Found specification of procedure mblen [2019-10-13 20:12:06,028 INFO L130 BoogieDeclarations]: Found specification of procedure mbtowc [2019-10-13 20:12:06,028 INFO L130 BoogieDeclarations]: Found specification of procedure wctomb [2019-10-13 20:12:06,028 INFO L130 BoogieDeclarations]: Found specification of procedure mbstowcs [2019-10-13 20:12:06,028 INFO L130 BoogieDeclarations]: Found specification of procedure wcstombs [2019-10-13 20:12:06,029 INFO L130 BoogieDeclarations]: Found specification of procedure rpmatch [2019-10-13 20:12:06,029 INFO L130 BoogieDeclarations]: Found specification of procedure getsubopt [2019-10-13 20:12:06,029 INFO L130 BoogieDeclarations]: Found specification of procedure getloadavg [2019-10-13 20:12:06,029 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_int [2019-10-13 20:12:06,029 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_error [2019-10-13 20:12:06,029 INFO L130 BoogieDeclarations]: Found specification of procedure main [2019-10-13 20:12:06,029 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2019-10-13 20:12:06,030 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2019-10-13 20:12:06,030 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2019-10-13 20:12:06,030 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2019-10-13 20:12:06,030 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2019-10-13 20:12:06,030 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2019-10-13 20:12:06,030 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2019-10-13 20:12:06,030 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2019-10-13 20:12:06,663 INFO L279 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2019-10-13 20:12:06,663 INFO L284 CfgBuilder]: Removed 11 assume(true) statements. [2019-10-13 20:12:06,664 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 13.10 08:12:06 BoogieIcfgContainer [2019-10-13 20:12:06,665 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2019-10-13 20:12:06,666 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2019-10-13 20:12:06,666 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2019-10-13 20:12:06,669 INFO L275 PluginConnector]: TraceAbstraction initialized [2019-10-13 20:12:06,669 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 13.10 08:12:05" (1/3) ... [2019-10-13 20:12:06,670 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@e4ca0b and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 13.10 08:12:06, skipping insertion in model container [2019-10-13 20:12:06,670 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 08:12:05" (2/3) ... [2019-10-13 20:12:06,671 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@e4ca0b and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 13.10 08:12:06, skipping insertion in model container [2019-10-13 20:12:06,671 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 13.10 08:12:06" (3/3) ... [2019-10-13 20:12:06,673 INFO L109 eAbstractionObserver]: Analyzing ICFG dll-reverse.i [2019-10-13 20:12:06,683 INFO L152 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2019-10-13 20:12:06,692 INFO L164 ceAbstractionStarter]: Appying trace abstraction to program that has 3 error locations. [2019-10-13 20:12:06,703 INFO L249 AbstractCegarLoop]: Starting to check reachability of 3 error locations. [2019-10-13 20:12:06,728 INFO L373 AbstractCegarLoop]: Interprodecural is true [2019-10-13 20:12:06,728 INFO L374 AbstractCegarLoop]: Hoare is true [2019-10-13 20:12:06,729 INFO L375 AbstractCegarLoop]: Compute interpolants for FPandBP [2019-10-13 20:12:06,729 INFO L376 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2019-10-13 20:12:06,729 INFO L377 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2019-10-13 20:12:06,729 INFO L378 AbstractCegarLoop]: Difference is false [2019-10-13 20:12:06,730 INFO L379 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2019-10-13 20:12:06,730 INFO L383 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2019-10-13 20:12:06,748 INFO L276 IsEmpty]: Start isEmpty. Operand 42 states. [2019-10-13 20:12:06,753 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 12 [2019-10-13 20:12:06,753 INFO L372 BasicCegarLoop]: Found error trace [2019-10-13 20:12:06,755 INFO L380 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-10-13 20:12:06,757 INFO L410 AbstractCegarLoop]: === Iteration 1 === [mainErr2ASSERT_VIOLATIONERROR_FUNCTION, mainErr0ASSERT_VIOLATIONERROR_FUNCTION, mainErr1ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-10-13 20:12:06,761 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-13 20:12:06,761 INFO L82 PathProgramCache]: Analyzing trace with hash 1398993325, now seen corresponding path program 1 times [2019-10-13 20:12:06,770 INFO L157 tionRefinementEngine]: Executing refinement strategy TAIPAN [2019-10-13 20:12:06,771 INFO L342 tionRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1976596155] [2019-10-13 20:12:06,771 INFO L116 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-13 20:12:06,771 INFO L116 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-13 20:12:06,771 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-10-13 20:12:06,879 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-13 20:12:06,934 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 20:12:06,934 INFO L342 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1976596155] [2019-10-13 20:12:06,935 INFO L223 tionRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-10-13 20:12:06,936 INFO L236 tionRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2019-10-13 20:12:06,936 INFO L342 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [701033595] [2019-10-13 20:12:06,941 INFO L442 AbstractCegarLoop]: Interpolant automaton has 2 states [2019-10-13 20:12:06,942 INFO L137 tionRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy TAIPAN [2019-10-13 20:12:06,956 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2019-10-13 20:12:06,957 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2019-10-13 20:12:06,959 INFO L87 Difference]: Start difference. First operand 42 states. Second operand 2 states. [2019-10-13 20:12:06,984 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-10-13 20:12:06,984 INFO L93 Difference]: Finished difference Result 76 states and 118 transitions. [2019-10-13 20:12:06,985 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2019-10-13 20:12:06,986 INFO L78 Accepts]: Start accepts. Automaton has 2 states. Word has length 11 [2019-10-13 20:12:06,987 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-10-13 20:12:06,997 INFO L225 Difference]: With dead ends: 76 [2019-10-13 20:12:06,997 INFO L226 Difference]: Without dead ends: 35 [2019-10-13 20:12:07,001 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 20:12:07,020 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 35 states. [2019-10-13 20:12:07,041 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 35 to 35. [2019-10-13 20:12:07,042 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 35 states. [2019-10-13 20:12:07,044 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 35 states to 35 states and 42 transitions. [2019-10-13 20:12:07,046 INFO L78 Accepts]: Start accepts. Automaton has 35 states and 42 transitions. Word has length 11 [2019-10-13 20:12:07,046 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-10-13 20:12:07,047 INFO L462 AbstractCegarLoop]: Abstraction has 35 states and 42 transitions. [2019-10-13 20:12:07,047 INFO L463 AbstractCegarLoop]: Interpolant automaton has 2 states. [2019-10-13 20:12:07,047 INFO L276 IsEmpty]: Start isEmpty. Operand 35 states and 42 transitions. [2019-10-13 20:12:07,048 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 15 [2019-10-13 20:12:07,048 INFO L372 BasicCegarLoop]: Found error trace [2019-10-13 20:12:07,048 INFO L380 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-10-13 20:12:07,049 INFO L410 AbstractCegarLoop]: === Iteration 2 === [mainErr2ASSERT_VIOLATIONERROR_FUNCTION, mainErr0ASSERT_VIOLATIONERROR_FUNCTION, mainErr1ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-10-13 20:12:07,049 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-13 20:12:07,049 INFO L82 PathProgramCache]: Analyzing trace with hash 1902233848, now seen corresponding path program 1 times [2019-10-13 20:12:07,050 INFO L157 tionRefinementEngine]: Executing refinement strategy TAIPAN [2019-10-13 20:12:07,050 INFO L342 tionRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [220500779] [2019-10-13 20:12:07,050 INFO L116 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-13 20:12:07,051 INFO L116 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-13 20:12:07,051 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-10-13 20:12:07,081 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-13 20:12:07,234 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 20:12:07,235 INFO L342 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [220500779] [2019-10-13 20:12:07,235 INFO L223 tionRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-10-13 20:12:07,238 INFO L236 tionRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2019-10-13 20:12:07,238 INFO L342 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [160359533] [2019-10-13 20:12:07,240 INFO L442 AbstractCegarLoop]: Interpolant automaton has 5 states [2019-10-13 20:12:07,240 INFO L137 tionRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy TAIPAN [2019-10-13 20:12:07,240 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2019-10-13 20:12:07,241 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2019-10-13 20:12:07,241 INFO L87 Difference]: Start difference. First operand 35 states and 42 transitions. Second operand 5 states. [2019-10-13 20:12:07,458 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-10-13 20:12:07,459 INFO L93 Difference]: Finished difference Result 75 states and 93 transitions. [2019-10-13 20:12:07,459 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2019-10-13 20:12:07,459 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 14 [2019-10-13 20:12:07,459 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-10-13 20:12:07,460 INFO L225 Difference]: With dead ends: 75 [2019-10-13 20:12:07,461 INFO L226 Difference]: Without dead ends: 49 [2019-10-13 20:12:07,462 INFO L600 BasicCegarLoop]: 0 DeclaredPredicates, 7 GetRequests, 2 SyntacticMatches, 0 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 20:12:07,462 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 49 states. [2019-10-13 20:12:07,469 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 49 to 41. [2019-10-13 20:12:07,469 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 41 states. [2019-10-13 20:12:07,470 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 41 states to 41 states and 49 transitions. [2019-10-13 20:12:07,471 INFO L78 Accepts]: Start accepts. Automaton has 41 states and 49 transitions. Word has length 14 [2019-10-13 20:12:07,471 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-10-13 20:12:07,471 INFO L462 AbstractCegarLoop]: Abstraction has 41 states and 49 transitions. [2019-10-13 20:12:07,471 INFO L463 AbstractCegarLoop]: Interpolant automaton has 5 states. [2019-10-13 20:12:07,471 INFO L276 IsEmpty]: Start isEmpty. Operand 41 states and 49 transitions. [2019-10-13 20:12:07,472 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 15 [2019-10-13 20:12:07,472 INFO L372 BasicCegarLoop]: Found error trace [2019-10-13 20:12:07,472 INFO L380 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-10-13 20:12:07,473 INFO L410 AbstractCegarLoop]: === Iteration 3 === [mainErr2ASSERT_VIOLATIONERROR_FUNCTION, mainErr0ASSERT_VIOLATIONERROR_FUNCTION, mainErr1ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-10-13 20:12:07,473 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-13 20:12:07,473 INFO L82 PathProgramCache]: Analyzing trace with hash 1902292180, now seen corresponding path program 1 times [2019-10-13 20:12:07,473 INFO L157 tionRefinementEngine]: Executing refinement strategy TAIPAN [2019-10-13 20:12:07,474 INFO L342 tionRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1829161139] [2019-10-13 20:12:07,474 INFO L116 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-13 20:12:07,474 INFO L116 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-13 20:12:07,474 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-10-13 20:12:07,500 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-13 20:12:07,551 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 20:12:07,552 INFO L342 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1829161139] [2019-10-13 20:12:07,552 INFO L223 tionRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-10-13 20:12:07,552 INFO L236 tionRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2019-10-13 20:12:07,555 INFO L342 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1498208609] [2019-10-13 20:12:07,556 INFO L442 AbstractCegarLoop]: Interpolant automaton has 4 states [2019-10-13 20:12:07,556 INFO L137 tionRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy TAIPAN [2019-10-13 20:12:07,556 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2019-10-13 20:12:07,557 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2019-10-13 20:12:07,557 INFO L87 Difference]: Start difference. First operand 41 states and 49 transitions. Second operand 4 states. [2019-10-13 20:12:07,691 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-10-13 20:12:07,691 INFO L93 Difference]: Finished difference Result 68 states and 82 transitions. [2019-10-13 20:12:07,692 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2019-10-13 20:12:07,692 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 14 [2019-10-13 20:12:07,692 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-10-13 20:12:07,693 INFO L225 Difference]: With dead ends: 68 [2019-10-13 20:12:07,693 INFO L226 Difference]: Without dead ends: 54 [2019-10-13 20:12:07,695 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 20:12:07,696 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 54 states. [2019-10-13 20:12:07,707 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 54 to 48. [2019-10-13 20:12:07,708 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 48 states. [2019-10-13 20:12:07,709 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 48 states to 48 states and 58 transitions. [2019-10-13 20:12:07,709 INFO L78 Accepts]: Start accepts. Automaton has 48 states and 58 transitions. Word has length 14 [2019-10-13 20:12:07,710 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-10-13 20:12:07,710 INFO L462 AbstractCegarLoop]: Abstraction has 48 states and 58 transitions. [2019-10-13 20:12:07,710 INFO L463 AbstractCegarLoop]: Interpolant automaton has 4 states. [2019-10-13 20:12:07,710 INFO L276 IsEmpty]: Start isEmpty. Operand 48 states and 58 transitions. [2019-10-13 20:12:07,711 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 23 [2019-10-13 20:12:07,711 INFO L372 BasicCegarLoop]: Found error trace [2019-10-13 20:12:07,714 INFO L380 BasicCegarLoop]: trace histogram [2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-10-13 20:12:07,714 INFO L410 AbstractCegarLoop]: === Iteration 4 === [mainErr2ASSERT_VIOLATIONERROR_FUNCTION, mainErr0ASSERT_VIOLATIONERROR_FUNCTION, mainErr1ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-10-13 20:12:07,714 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-13 20:12:07,715 INFO L82 PathProgramCache]: Analyzing trace with hash -202034517, now seen corresponding path program 1 times [2019-10-13 20:12:07,717 INFO L157 tionRefinementEngine]: Executing refinement strategy TAIPAN [2019-10-13 20:12:07,717 INFO L342 tionRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1027849817] [2019-10-13 20:12:07,717 INFO L116 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-13 20:12:07,718 INFO L116 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-13 20:12:07,718 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-10-13 20:12:07,769 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-13 20:12:07,845 INFO L134 CoverageAnalysis]: Checked inductivity of 6 backedges. 1 proven. 3 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2019-10-13 20:12:07,846 INFO L342 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1027849817] [2019-10-13 20:12:07,849 INFO L342 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [654351223] [2019-10-13 20:12:07,850 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 20:12:08,005 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-13 20:12:08,008 INFO L256 TraceCheckSpWp]: Trace formula consists of 112 conjuncts, 14 conjunts are in the unsatisfiable core [2019-10-13 20:12:08,017 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2019-10-13 20:12:08,089 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-10-13 20:12:08,148 INFO L375 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 23 treesize of output 15 [2019-10-13 20:12:08,152 INFO L496 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2019-10-13 20:12:08,158 INFO L375 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 23 treesize of output 19 [2019-10-13 20:12:08,159 INFO L496 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 1 xjuncts. [2019-10-13 20:12:08,181 INFO L567 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2019-10-13 20:12:08,187 INFO L375 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 12 treesize of output 8 [2019-10-13 20:12:08,187 INFO L496 ElimStorePlain]: Start of recursive call 4: End of recursive call: and 1 xjuncts. [2019-10-13 20:12:08,191 INFO L375 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 16 treesize of output 8 [2019-10-13 20:12:08,192 INFO L496 ElimStorePlain]: Start of recursive call 5: End of recursive call: and 1 xjuncts. [2019-10-13 20:12:08,198 INFO L567 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2019-10-13 20:12:08,199 INFO L496 ElimStorePlain]: Start of recursive call 1: 2 dim-0 vars, 2 dim-2 vars, End of recursive call: and 2 xjuncts. [2019-10-13 20:12:08,200 INFO L221 ElimStorePlain]: Needed 5 recursive calls to eliminate 4 variables, input treesize:47, output treesize:9 [2019-10-13 20:12:08,206 INFO L134 CoverageAnalysis]: Checked inductivity of 6 backedges. 1 proven. 3 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2019-10-13 20:12:08,207 INFO L321 TraceCheckSpWp]: Computing backward predicates... [2019-10-13 20:12:08,245 INFO L134 CoverageAnalysis]: Checked inductivity of 6 backedges. 1 proven. 3 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2019-10-13 20:12:08,245 INFO L342 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleAbstractInterpretation [567067255] [2019-10-13 20:12:08,263 INFO L211 CegarAbsIntRunner]: Running AI on error trace of length 23 [2019-10-13 20:12:08,315 INFO L148 AbstractInterpreter]: Using domain IntervalDomain [2019-10-13 20:12:08,316 INFO L101 FixpointEngine]: Starting fixpoint engine with domain IntervalDomain (maxUnwinding=3, maxParallelStates=2) [2019-10-13 20:12:08,404 INFO L266 AbstractInterpreter]: Error location(s) were unreachable [2019-10-13 20:12:08,406 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 20:12:08,412 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-13 20:12:08,413 INFO L536 sIntCurrentIteration]: Generating AbsInt predicates [2019-10-13 20:12:08,489 INFO L227 lantSequenceWeakener]: Weakened 4 states. On average, predicates are now at 100% of their original sizes. [2019-10-13 20:12:08,489 INFO L551 sIntCurrentIteration]: Unifying AI predicates [2019-10-13 20:12:08,491 INFO L553 sIntCurrentIteration]: We unified 21 AI predicates to 21 [2019-10-13 20:12:08,492 INFO L562 sIntCurrentIteration]: Finished generation of AbsInt predicates [2019-10-13 20:12:08,493 INFO L223 tionRefinementEngine]: Constructing automaton from 1 perfect and 3 imperfect interpolant sequences. [2019-10-13 20:12:08,493 INFO L236 tionRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [5, 5, 5] total 6 [2019-10-13 20:12:08,493 INFO L342 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1199017270] [2019-10-13 20:12:08,495 INFO L442 AbstractCegarLoop]: Interpolant automaton has 2 states [2019-10-13 20:12:08,495 INFO L137 tionRefinementEngine]: Using predicate unifier AbsIntPredicateUnifier provided by strategy TAIPAN [2019-10-13 20:12:08,496 INFO L124 tionRefinementEngine]: Using hoare triple checker CachingHoareTripleCheckerMap provided by strategy [2019-10-13 20:12:08,496 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2019-10-13 20:12:08,496 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2019-10-13 20:12:08,497 INFO L87 Difference]: Start difference. First operand 48 states and 58 transitions. Second operand 2 states. [2019-10-13 20:12:08,504 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-10-13 20:12:08,504 INFO L93 Difference]: Finished difference Result 48 states and 58 transitions. [2019-10-13 20:12:08,505 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2019-10-13 20:12:08,505 INFO L78 Accepts]: Start accepts. Automaton has 2 states. Word has length 22 [2019-10-13 20:12:08,505 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-10-13 20:12:08,506 INFO L225 Difference]: With dead ends: 48 [2019-10-13 20:12:08,506 INFO L226 Difference]: Without dead ends: 0 [2019-10-13 20:12:08,507 INFO L600 BasicCegarLoop]: 0 DeclaredPredicates, 21 GetRequests, 21 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 20:12:08,507 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2019-10-13 20:12:08,508 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2019-10-13 20:12:08,508 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 0 states. [2019-10-13 20:12:08,508 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2019-10-13 20:12:08,509 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 22 [2019-10-13 20:12:08,509 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-10-13 20:12:08,509 INFO L462 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2019-10-13 20:12:08,509 INFO L463 AbstractCegarLoop]: Interpolant automaton has 2 states. [2019-10-13 20:12:08,509 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2019-10-13 20:12:08,509 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2019-10-13 20:12:08,715 WARN L499 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 z3 -smt2 -in SMTLIB2_COMPLIANT=true [2019-10-13 20:12:08,719 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends 0 states and 0 transitions. [2019-10-13 20:12:08,746 INFO L443 ceAbstractionStarter]: For program point ULTIMATE.initFINAL(line -1) no Hoare annotation was computed. [2019-10-13 20:12:08,746 INFO L446 ceAbstractionStarter]: At program point ULTIMATE.initENTRY(line -1) the Hoare annotation is: true [2019-10-13 20:12:08,747 INFO L443 ceAbstractionStarter]: For program point ULTIMATE.initEXIT(line -1) no Hoare annotation was computed. [2019-10-13 20:12:08,747 INFO L443 ceAbstractionStarter]: For program point ULTIMATE.startEXIT(line -1) no Hoare annotation was computed. [2019-10-13 20:12:08,747 INFO L446 ceAbstractionStarter]: At program point L-1(line -1) the Hoare annotation is: true [2019-10-13 20:12:08,747 INFO L446 ceAbstractionStarter]: At program point ULTIMATE.startENTRY(line -1) the Hoare annotation is: true [2019-10-13 20:12:08,747 INFO L443 ceAbstractionStarter]: For program point ULTIMATE.startFINAL(line -1) no Hoare annotation was computed. [2019-10-13 20:12:08,747 INFO L443 ceAbstractionStarter]: For program point L993-1(line 993) no Hoare annotation was computed. [2019-10-13 20:12:08,748 INFO L439 ceAbstractionStarter]: At program point L993-3(line 993) the Hoare annotation is: false [2019-10-13 20:12:08,748 INFO L443 ceAbstractionStarter]: For program point L993-4(line 993) no Hoare annotation was computed. [2019-10-13 20:12:08,748 INFO L443 ceAbstractionStarter]: For program point mainEXIT(lines 982 1057) no Hoare annotation was computed. [2019-10-13 20:12:08,748 INFO L443 ceAbstractionStarter]: For program point L1002(line 1002) no Hoare annotation was computed. [2019-10-13 20:12:08,748 INFO L443 ceAbstractionStarter]: For program point L1002-2(line 1002) no Hoare annotation was computed. [2019-10-13 20:12:08,748 INFO L443 ceAbstractionStarter]: For program point L1002-3(lines 983 1057) no Hoare annotation was computed. [2019-10-13 20:12:08,749 INFO L443 ceAbstractionStarter]: For program point L1002-4(line 1002) no Hoare annotation was computed. [2019-10-13 20:12:08,749 INFO L443 ceAbstractionStarter]: For program point L1036(lines 1036 1037) no Hoare annotation was computed. [2019-10-13 20:12:08,749 INFO L443 ceAbstractionStarter]: For program point mainFINAL(lines 982 1057) no Hoare annotation was computed. [2019-10-13 20:12:08,749 INFO L446 ceAbstractionStarter]: At program point mainENTRY(lines 982 1057) the Hoare annotation is: true [2019-10-13 20:12:08,749 INFO L443 ceAbstractionStarter]: For program point mainErr1ASSERT_VIOLATIONERROR_FUNCTION(line 1002) no Hoare annotation was computed. [2019-10-13 20:12:08,749 INFO L443 ceAbstractionStarter]: For program point L1038(line 1038) no Hoare annotation was computed. [2019-10-13 20:12:08,750 INFO L443 ceAbstractionStarter]: For program point L1038-2(line 1038) no Hoare annotation was computed. [2019-10-13 20:12:08,750 INFO L443 ceAbstractionStarter]: For program point L1038-3(lines 1033 1045) no Hoare annotation was computed. [2019-10-13 20:12:08,750 INFO L443 ceAbstractionStarter]: For program point L1038-4(line 1038) no Hoare annotation was computed. [2019-10-13 20:12:08,750 INFO L443 ceAbstractionStarter]: For program point L997-1(line 997) no Hoare annotation was computed. [2019-10-13 20:12:08,750 INFO L443 ceAbstractionStarter]: For program point L997-3(lines 997 1001) no Hoare annotation was computed. [2019-10-13 20:12:08,750 INFO L439 ceAbstractionStarter]: At program point L997-5(lines 997 1001) the Hoare annotation is: false [2019-10-13 20:12:08,751 INFO L443 ceAbstractionStarter]: For program point mainErr2ASSERT_VIOLATIONERROR_FUNCTION(line 1038) no Hoare annotation was computed. [2019-10-13 20:12:08,751 INFO L443 ceAbstractionStarter]: For program point L1006(lines 1006 1011) no Hoare annotation was computed. [2019-10-13 20:12:08,751 INFO L443 ceAbstractionStarter]: For program point L1006-2(lines 1006 1011) no Hoare annotation was computed. [2019-10-13 20:12:08,751 INFO L443 ceAbstractionStarter]: For program point L999-1(line 999) no Hoare annotation was computed. [2019-10-13 20:12:08,751 INFO L439 ceAbstractionStarter]: At program point L1032-2(lines 1032 1045) the Hoare annotation is: false [2019-10-13 20:12:08,752 INFO L443 ceAbstractionStarter]: For program point L1032-3(lines 1032 1045) no Hoare annotation was computed. [2019-10-13 20:12:08,752 INFO L443 ceAbstractionStarter]: For program point L999-3(line 999) no Hoare annotation was computed. [2019-10-13 20:12:08,752 INFO L439 ceAbstractionStarter]: At program point L999-4(line 999) the Hoare annotation is: false [2019-10-13 20:12:08,752 INFO L443 ceAbstractionStarter]: For program point L999-5(line 999) no Hoare annotation was computed. [2019-10-13 20:12:08,752 INFO L443 ceAbstractionStarter]: For program point mainErr0ASSERT_VIOLATIONERROR_FUNCTION(line 999) no Hoare annotation was computed. [2019-10-13 20:12:08,752 INFO L446 ceAbstractionStarter]: At program point L1049-2(lines 1049 1054) the Hoare annotation is: true [2019-10-13 20:12:08,753 INFO L439 ceAbstractionStarter]: At program point L1016-2(lines 1016 1027) the Hoare annotation is: false [2019-10-13 20:12:08,753 INFO L443 ceAbstractionStarter]: For program point L1049-3(lines 1049 1054) no Hoare annotation was computed. [2019-10-13 20:12:08,753 INFO L443 ceAbstractionStarter]: For program point L1016-3(lines 1016 1027) no Hoare annotation was computed. [2019-10-13 20:12:08,753 INFO L443 ceAbstractionStarter]: For program point L1041(lines 1041 1042) no Hoare annotation was computed. [2019-10-13 20:12:08,753 INFO L443 ceAbstractionStarter]: For program point L1041-2(lines 1041 1042) no Hoare annotation was computed. [2019-10-13 20:12:08,762 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 13.10 08:12:08 BoogieIcfgContainer [2019-10-13 20:12:08,763 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2019-10-13 20:12:08,765 INFO L168 Benchmark]: Toolchain (without parser) took 3547.87 ms. Allocated memory was 137.9 MB in the beginning and 233.8 MB in the end (delta: 95.9 MB). Free memory was 99.4 MB in the beginning and 97.1 MB in the end (delta: 2.3 MB). Peak memory consumption was 98.3 MB. Max. memory is 7.1 GB. [2019-10-13 20:12:08,765 INFO L168 Benchmark]: CDTParser took 0.22 ms. Allocated memory is still 137.9 MB. Free memory is still 120.8 MB. There was no memory consumed. Max. memory is 7.1 GB. [2019-10-13 20:12:08,767 INFO L168 Benchmark]: CACSL2BoogieTranslator took 638.58 ms. Allocated memory was 137.9 MB in the beginning and 201.9 MB in the end (delta: 64.0 MB). Free memory was 99.4 MB in the beginning and 168.3 MB in the end (delta: -68.9 MB). Peak memory consumption was 26.4 MB. Max. memory is 7.1 GB. [2019-10-13 20:12:08,767 INFO L168 Benchmark]: Boogie Preprocessor took 80.59 ms. Allocated memory is still 201.9 MB. Free memory was 168.3 MB in the beginning and 165.0 MB in the end (delta: 3.3 MB). Peak memory consumption was 3.3 MB. Max. memory is 7.1 GB. [2019-10-13 20:12:08,768 INFO L168 Benchmark]: RCFGBuilder took 721.40 ms. Allocated memory is still 201.9 MB. Free memory was 165.0 MB in the beginning and 116.4 MB in the end (delta: 48.6 MB). Peak memory consumption was 48.6 MB. Max. memory is 7.1 GB. [2019-10-13 20:12:08,769 INFO L168 Benchmark]: TraceAbstraction took 2097.07 ms. Allocated memory was 201.9 MB in the beginning and 233.8 MB in the end (delta: 32.0 MB). Free memory was 116.4 MB in the beginning and 97.1 MB in the end (delta: 19.3 MB). Peak memory consumption was 51.3 MB. Max. memory is 7.1 GB. [2019-10-13 20:12:08,773 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 137.9 MB. Free memory is still 120.8 MB. There was no memory consumed. Max. memory is 7.1 GB. * CACSL2BoogieTranslator took 638.58 ms. Allocated memory was 137.9 MB in the beginning and 201.9 MB in the end (delta: 64.0 MB). Free memory was 99.4 MB in the beginning and 168.3 MB in the end (delta: -68.9 MB). Peak memory consumption was 26.4 MB. Max. memory is 7.1 GB. * Boogie Preprocessor took 80.59 ms. Allocated memory is still 201.9 MB. Free memory was 168.3 MB in the beginning and 165.0 MB in the end (delta: 3.3 MB). Peak memory consumption was 3.3 MB. Max. memory is 7.1 GB. * RCFGBuilder took 721.40 ms. Allocated memory is still 201.9 MB. Free memory was 165.0 MB in the beginning and 116.4 MB in the end (delta: 48.6 MB). Peak memory consumption was 48.6 MB. Max. memory is 7.1 GB. * TraceAbstraction took 2097.07 ms. Allocated memory was 201.9 MB in the beginning and 233.8 MB in the end (delta: 32.0 MB). Free memory was 116.4 MB in the beginning and 97.1 MB in the end (delta: 19.3 MB). Peak memory consumption was 51.3 MB. Max. memory is 7.1 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - PositiveResult [Line: 1038]: call of __VERIFIER_error() unreachable For all program executions holds that call of __VERIFIER_error() unreachable at this location - PositiveResult [Line: 999]: call of __VERIFIER_error() unreachable For all program executions holds that call of __VERIFIER_error() unreachable at this location - PositiveResult [Line: 1002]: call of __VERIFIER_error() unreachable For all program executions holds that call of __VERIFIER_error() unreachable at this location - AllSpecificationsHoldResult: All specifications hold 3 specifications checked. All of them hold - InvariantResult [Line: 997]: Loop Invariant Derived loop invariant: 0 - InvariantResult [Line: 993]: Loop Invariant Derived loop invariant: 0 - InvariantResult [Line: 999]: Loop Invariant Derived loop invariant: 0 - InvariantResult [Line: 1049]: Loop Invariant Derived loop invariant: 1 - InvariantResult [Line: 1016]: Loop Invariant Derived loop invariant: 0 - InvariantResult [Line: 1032]: Loop Invariant Derived loop invariant: 0 - StatisticsResult: Ultimate Automizer benchmark data CFG has 3 procedures, 42 locations, 3 error locations. Result: SAFE, OverallTime: 2.0s, OverallIterations: 4, TraceHistogramMax: 2, AutomataDifference: 0.4s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, HoareTripleCheckerStatistics: 118 SDtfs, 58 SDslu, 112 SDs, 0 SdLazy, 82 SolverSat, 26 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 0.2s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 35 GetRequests, 27 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.1s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=48occurred in iteration=3, 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, 14 StatesRemovedByMinimization, 2 NontrivialMinimizations, HoareAnnotationStatistics: 0.0s HoareAnnotationTime, 10 LocationsWithAnnotation, 10 PreInvPairs, 11 NumberOfFragments, 10 HoareAnnotationTreeSize, 10 FomulaSimplifications, 0 FormulaSimplificationTreeSizeReduction, 0.0s HoareSimplificationTime, 10 FomulaSimplificationsInter, 0 FormulaSimplificationTreeSizeReductionInter, 0.0s HoareSimplificationTimeInter, RefinementEngineStatistics: TRACE_CHECK: 0.0s SsaConstructionTime, 0.1s SatisfiabilityAnalysisTime, 0.5s InterpolantComputationTime, 83 NumberOfCodeBlocks, 83 NumberOfCodeBlocksAsserted, 5 NumberOfCheckSat, 99 ConstructedInterpolants, 0 QuantifiedInterpolants, 10335 SizeOfPredicates, 10 NumberOfNonLiveVariables, 112 ConjunctsInSsa, 14 ConjunctsInUnsatCore, 6 InterpolantComputations, 3 PerfectInterpolantSequences, 9/18 InterpolantCoveringCapability, INVARIANT_SYNTHESIS: No data available, INTERPOLANT_CONSOLIDATION: No data available, ABSTRACT_INTERPRETATION: TIME[ms]: 150, ITERATIONS: 1, WAS_STRONG: 1, WEAKENING_RATIO: 0.9285714285714286, AVG_VARS_REMOVED_DURING_WEAKENING: 1.4285714285714286, AVG_WEAKENED_CONJUNCTS: 0.2857142857142857, PDR: No data available, SIFA: No data available, ReuseStatistics: No data available RESULT: Ultimate proved your program to be correct! Received shutdown request...