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-properties/simple_built_from_end.i -------------------------------------------------------------------------------- This is Ultimate 0.1.24-13a467a-m [2019-10-15 01:03:29,872 INFO L177 SettingsManager]: Resetting all preferences to default values... [2019-10-15 01:03:29,875 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2019-10-15 01:03:29,895 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2019-10-15 01:03:29,895 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2019-10-15 01:03:29,896 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2019-10-15 01:03:29,898 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2019-10-15 01:03:29,899 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2019-10-15 01:03:29,901 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2019-10-15 01:03:29,902 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2019-10-15 01:03:29,903 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2019-10-15 01:03:29,905 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2019-10-15 01:03:29,905 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2019-10-15 01:03:29,906 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2019-10-15 01:03:29,907 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2019-10-15 01:03:29,909 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2019-10-15 01:03:29,909 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2019-10-15 01:03:29,914 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2019-10-15 01:03:29,915 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2019-10-15 01:03:29,917 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2019-10-15 01:03:29,919 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2019-10-15 01:03:29,920 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2019-10-15 01:03:29,921 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2019-10-15 01:03:29,922 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2019-10-15 01:03:29,924 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2019-10-15 01:03:29,924 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2019-10-15 01:03:29,925 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2019-10-15 01:03:29,925 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2019-10-15 01:03:29,926 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2019-10-15 01:03:29,927 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2019-10-15 01:03:29,927 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2019-10-15 01:03:29,928 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2019-10-15 01:03:29,929 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2019-10-15 01:03:29,929 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2019-10-15 01:03:29,930 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2019-10-15 01:03:29,931 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2019-10-15 01:03:29,931 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2019-10-15 01:03:29,932 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2019-10-15 01:03:29,932 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2019-10-15 01:03:29,933 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2019-10-15 01:03:29,933 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2019-10-15 01:03:29,934 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 [2019-10-15 01:03:29,948 INFO L113 SettingsManager]: Loading preferences was successful [2019-10-15 01:03:29,949 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2019-10-15 01:03:29,950 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2019-10-15 01:03:29,951 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2019-10-15 01:03:29,951 INFO L138 SettingsManager]: * Use SBE=true [2019-10-15 01:03:29,951 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2019-10-15 01:03:29,951 INFO L138 SettingsManager]: * sizeof long=4 [2019-10-15 01:03:29,951 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2019-10-15 01:03:29,952 INFO L138 SettingsManager]: * sizeof POINTER=4 [2019-10-15 01:03:29,952 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2019-10-15 01:03:29,952 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2019-10-15 01:03:29,952 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2019-10-15 01:03:29,952 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2019-10-15 01:03:29,953 INFO L138 SettingsManager]: * sizeof long double=12 [2019-10-15 01:03:29,953 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2019-10-15 01:03:29,953 INFO L138 SettingsManager]: * Use constant arrays=true [2019-10-15 01:03:29,953 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2019-10-15 01:03:29,953 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2019-10-15 01:03:29,954 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2019-10-15 01:03:29,954 INFO L138 SettingsManager]: * To the following directory=./dump/ [2019-10-15 01:03:29,954 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2019-10-15 01:03:29,954 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2019-10-15 01:03:29,954 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2019-10-15 01:03:29,955 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2019-10-15 01:03:29,955 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2019-10-15 01:03:29,955 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2019-10-15 01:03:29,955 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2019-10-15 01:03:29,955 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2019-10-15 01:03:29,956 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 [2019-10-15 01:03:30,252 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2019-10-15 01:03:30,266 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2019-10-15 01:03:30,269 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2019-10-15 01:03:30,271 INFO L271 PluginConnector]: Initializing CDTParser... [2019-10-15 01:03:30,271 INFO L275 PluginConnector]: CDTParser initialized [2019-10-15 01:03:30,272 INFO L428 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/list-properties/simple_built_from_end.i [2019-10-15 01:03:30,331 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/b2c5fc846/b9631d9e50144d00a222065b08497139/FLAG49e034c2a [2019-10-15 01:03:30,907 INFO L306 CDTParser]: Found 1 translation units. [2019-10-15 01:03:30,910 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/list-properties/simple_built_from_end.i [2019-10-15 01:03:30,932 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/b2c5fc846/b9631d9e50144d00a222065b08497139/FLAG49e034c2a [2019-10-15 01:03:31,184 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/b2c5fc846/b9631d9e50144d00a222065b08497139 [2019-10-15 01:03:31,195 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2019-10-15 01:03:31,196 INFO L131 ToolchainWalker]: Walking toolchain with 4 elements. [2019-10-15 01:03:31,197 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2019-10-15 01:03:31,198 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2019-10-15 01:03:31,200 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2019-10-15 01:03:31,201 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 15.10 01:03:31" (1/1) ... [2019-10-15 01:03:31,204 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@6861fd41 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.10 01:03:31, skipping insertion in model container [2019-10-15 01:03:31,204 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 15.10 01:03:31" (1/1) ... [2019-10-15 01:03:31,210 INFO L142 MainTranslator]: Starting translation in SV-COMP mode [2019-10-15 01:03:31,249 INFO L173 MainTranslator]: Built tables and reachable declarations [2019-10-15 01:03:31,704 INFO L206 PostProcessor]: Analyzing one entry point: main [2019-10-15 01:03:31,722 INFO L188 MainTranslator]: Completed pre-run [2019-10-15 01:03:31,787 INFO L206 PostProcessor]: Analyzing one entry point: main [2019-10-15 01:03:31,846 INFO L192 MainTranslator]: Completed translation [2019-10-15 01:03:31,847 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.10 01:03:31 WrapperNode [2019-10-15 01:03:31,847 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2019-10-15 01:03:31,847 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2019-10-15 01:03:31,847 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2019-10-15 01:03:31,847 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2019-10-15 01:03:31,857 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.10 01:03:31" (1/1) ... [2019-10-15 01:03:31,857 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.10 01:03:31" (1/1) ... [2019-10-15 01:03:31,874 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.10 01:03:31" (1/1) ... [2019-10-15 01:03:31,876 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.10 01:03:31" (1/1) ... [2019-10-15 01:03:31,889 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.10 01:03:31" (1/1) ... [2019-10-15 01:03:31,893 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.10 01:03:31" (1/1) ... [2019-10-15 01:03:31,896 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.10 01:03:31" (1/1) ... [2019-10-15 01:03:31,902 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2019-10-15 01:03:31,903 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2019-10-15 01:03:31,903 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2019-10-15 01:03:31,903 INFO L275 PluginConnector]: RCFGBuilder initialized [2019-10-15 01:03:31,904 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.10 01:03:31" (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 [2019-10-15 01:03:31,963 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2019-10-15 01:03:31,963 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2019-10-15 01:03:31,963 INFO L138 BoogieDeclarations]: Found implementation of procedure __bswap_32 [2019-10-15 01:03:31,963 INFO L138 BoogieDeclarations]: Found implementation of procedure __bswap_64 [2019-10-15 01:03:31,963 INFO L138 BoogieDeclarations]: Found implementation of procedure __uint16_identity [2019-10-15 01:03:31,963 INFO L138 BoogieDeclarations]: Found implementation of procedure __uint32_identity [2019-10-15 01:03:31,963 INFO L138 BoogieDeclarations]: Found implementation of procedure __uint64_identity [2019-10-15 01:03:31,964 INFO L138 BoogieDeclarations]: Found implementation of procedure myexit [2019-10-15 01:03:31,964 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2019-10-15 01:03:31,964 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_error [2019-10-15 01:03:31,964 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_int [2019-10-15 01:03:31,964 INFO L130 BoogieDeclarations]: Found specification of procedure __ctype_get_mb_cur_max [2019-10-15 01:03:31,965 INFO L130 BoogieDeclarations]: Found specification of procedure atof [2019-10-15 01:03:31,965 INFO L130 BoogieDeclarations]: Found specification of procedure atoi [2019-10-15 01:03:31,965 INFO L130 BoogieDeclarations]: Found specification of procedure atol [2019-10-15 01:03:31,965 INFO L130 BoogieDeclarations]: Found specification of procedure atoll [2019-10-15 01:03:31,965 INFO L130 BoogieDeclarations]: Found specification of procedure strtod [2019-10-15 01:03:31,966 INFO L130 BoogieDeclarations]: Found specification of procedure strtof [2019-10-15 01:03:31,966 INFO L130 BoogieDeclarations]: Found specification of procedure strtold [2019-10-15 01:03:31,966 INFO L130 BoogieDeclarations]: Found specification of procedure strtol [2019-10-15 01:03:31,966 INFO L130 BoogieDeclarations]: Found specification of procedure strtoul [2019-10-15 01:03:31,966 INFO L130 BoogieDeclarations]: Found specification of procedure strtoq [2019-10-15 01:03:31,966 INFO L130 BoogieDeclarations]: Found specification of procedure strtouq [2019-10-15 01:03:31,966 INFO L130 BoogieDeclarations]: Found specification of procedure strtoll [2019-10-15 01:03:31,966 INFO L130 BoogieDeclarations]: Found specification of procedure strtoull [2019-10-15 01:03:31,966 INFO L130 BoogieDeclarations]: Found specification of procedure l64a [2019-10-15 01:03:31,967 INFO L130 BoogieDeclarations]: Found specification of procedure a64l [2019-10-15 01:03:31,967 INFO L130 BoogieDeclarations]: Found specification of procedure __bswap_32 [2019-10-15 01:03:31,967 INFO L130 BoogieDeclarations]: Found specification of procedure __bswap_64 [2019-10-15 01:03:31,967 INFO L130 BoogieDeclarations]: Found specification of procedure __uint16_identity [2019-10-15 01:03:31,967 INFO L130 BoogieDeclarations]: Found specification of procedure __uint32_identity [2019-10-15 01:03:31,967 INFO L130 BoogieDeclarations]: Found specification of procedure __uint64_identity [2019-10-15 01:03:31,967 INFO L130 BoogieDeclarations]: Found specification of procedure select [2019-10-15 01:03:31,968 INFO L130 BoogieDeclarations]: Found specification of procedure pselect [2019-10-15 01:03:31,968 INFO L130 BoogieDeclarations]: Found specification of procedure gnu_dev_major [2019-10-15 01:03:31,968 INFO L130 BoogieDeclarations]: Found specification of procedure gnu_dev_minor [2019-10-15 01:03:31,968 INFO L130 BoogieDeclarations]: Found specification of procedure gnu_dev_makedev [2019-10-15 01:03:31,968 INFO L130 BoogieDeclarations]: Found specification of procedure random [2019-10-15 01:03:31,969 INFO L130 BoogieDeclarations]: Found specification of procedure srandom [2019-10-15 01:03:31,969 INFO L130 BoogieDeclarations]: Found specification of procedure initstate [2019-10-15 01:03:31,969 INFO L130 BoogieDeclarations]: Found specification of procedure setstate [2019-10-15 01:03:31,969 INFO L130 BoogieDeclarations]: Found specification of procedure random_r [2019-10-15 01:03:31,969 INFO L130 BoogieDeclarations]: Found specification of procedure srandom_r [2019-10-15 01:03:31,970 INFO L130 BoogieDeclarations]: Found specification of procedure initstate_r [2019-10-15 01:03:31,970 INFO L130 BoogieDeclarations]: Found specification of procedure setstate_r [2019-10-15 01:03:31,970 INFO L130 BoogieDeclarations]: Found specification of procedure rand [2019-10-15 01:03:31,970 INFO L130 BoogieDeclarations]: Found specification of procedure srand [2019-10-15 01:03:31,970 INFO L130 BoogieDeclarations]: Found specification of procedure rand_r [2019-10-15 01:03:31,970 INFO L130 BoogieDeclarations]: Found specification of procedure drand48 [2019-10-15 01:03:31,970 INFO L130 BoogieDeclarations]: Found specification of procedure erand48 [2019-10-15 01:03:31,971 INFO L130 BoogieDeclarations]: Found specification of procedure lrand48 [2019-10-15 01:03:31,971 INFO L130 BoogieDeclarations]: Found specification of procedure nrand48 [2019-10-15 01:03:31,971 INFO L130 BoogieDeclarations]: Found specification of procedure mrand48 [2019-10-15 01:03:31,971 INFO L130 BoogieDeclarations]: Found specification of procedure jrand48 [2019-10-15 01:03:31,971 INFO L130 BoogieDeclarations]: Found specification of procedure srand48 [2019-10-15 01:03:31,971 INFO L130 BoogieDeclarations]: Found specification of procedure seed48 [2019-10-15 01:03:31,971 INFO L130 BoogieDeclarations]: Found specification of procedure lcong48 [2019-10-15 01:03:31,972 INFO L130 BoogieDeclarations]: Found specification of procedure drand48_r [2019-10-15 01:03:31,972 INFO L130 BoogieDeclarations]: Found specification of procedure erand48_r [2019-10-15 01:03:31,972 INFO L130 BoogieDeclarations]: Found specification of procedure lrand48_r [2019-10-15 01:03:31,972 INFO L130 BoogieDeclarations]: Found specification of procedure nrand48_r [2019-10-15 01:03:31,972 INFO L130 BoogieDeclarations]: Found specification of procedure mrand48_r [2019-10-15 01:03:31,973 INFO L130 BoogieDeclarations]: Found specification of procedure jrand48_r [2019-10-15 01:03:31,973 INFO L130 BoogieDeclarations]: Found specification of procedure srand48_r [2019-10-15 01:03:31,973 INFO L130 BoogieDeclarations]: Found specification of procedure seed48_r [2019-10-15 01:03:31,973 INFO L130 BoogieDeclarations]: Found specification of procedure lcong48_r [2019-10-15 01:03:31,973 INFO L130 BoogieDeclarations]: Found specification of procedure malloc [2019-10-15 01:03:31,974 INFO L130 BoogieDeclarations]: Found specification of procedure calloc [2019-10-15 01:03:31,975 INFO L130 BoogieDeclarations]: Found specification of procedure realloc [2019-10-15 01:03:31,975 INFO L130 BoogieDeclarations]: Found specification of procedure free [2019-10-15 01:03:31,975 INFO L130 BoogieDeclarations]: Found specification of procedure alloca [2019-10-15 01:03:31,975 INFO L130 BoogieDeclarations]: Found specification of procedure valloc [2019-10-15 01:03:31,975 INFO L130 BoogieDeclarations]: Found specification of procedure posix_memalign [2019-10-15 01:03:31,976 INFO L130 BoogieDeclarations]: Found specification of procedure aligned_alloc [2019-10-15 01:03:31,976 INFO L130 BoogieDeclarations]: Found specification of procedure abort [2019-10-15 01:03:31,976 INFO L130 BoogieDeclarations]: Found specification of procedure atexit [2019-10-15 01:03:31,976 INFO L130 BoogieDeclarations]: Found specification of procedure at_quick_exit [2019-10-15 01:03:31,977 INFO L130 BoogieDeclarations]: Found specification of procedure on_exit [2019-10-15 01:03:31,977 INFO L130 BoogieDeclarations]: Found specification of procedure exit [2019-10-15 01:03:31,977 INFO L130 BoogieDeclarations]: Found specification of procedure quick_exit [2019-10-15 01:03:31,978 INFO L130 BoogieDeclarations]: Found specification of procedure _Exit [2019-10-15 01:03:31,978 INFO L130 BoogieDeclarations]: Found specification of procedure getenv [2019-10-15 01:03:31,978 INFO L130 BoogieDeclarations]: Found specification of procedure putenv [2019-10-15 01:03:31,978 INFO L130 BoogieDeclarations]: Found specification of procedure setenv [2019-10-15 01:03:31,979 INFO L130 BoogieDeclarations]: Found specification of procedure unsetenv [2019-10-15 01:03:31,979 INFO L130 BoogieDeclarations]: Found specification of procedure clearenv [2019-10-15 01:03:31,979 INFO L130 BoogieDeclarations]: Found specification of procedure mktemp [2019-10-15 01:03:31,980 INFO L130 BoogieDeclarations]: Found specification of procedure mkstemp [2019-10-15 01:03:31,981 INFO L130 BoogieDeclarations]: Found specification of procedure mkstemps [2019-10-15 01:03:31,981 INFO L130 BoogieDeclarations]: Found specification of procedure mkdtemp [2019-10-15 01:03:31,981 INFO L130 BoogieDeclarations]: Found specification of procedure system [2019-10-15 01:03:31,981 INFO L130 BoogieDeclarations]: Found specification of procedure realpath [2019-10-15 01:03:31,981 INFO L130 BoogieDeclarations]: Found specification of procedure bsearch [2019-10-15 01:03:31,981 INFO L130 BoogieDeclarations]: Found specification of procedure qsort [2019-10-15 01:03:31,981 INFO L130 BoogieDeclarations]: Found specification of procedure abs [2019-10-15 01:03:31,981 INFO L130 BoogieDeclarations]: Found specification of procedure labs [2019-10-15 01:03:31,982 INFO L130 BoogieDeclarations]: Found specification of procedure llabs [2019-10-15 01:03:31,982 INFO L130 BoogieDeclarations]: Found specification of procedure div [2019-10-15 01:03:31,982 INFO L130 BoogieDeclarations]: Found specification of procedure ldiv [2019-10-15 01:03:31,982 INFO L130 BoogieDeclarations]: Found specification of procedure lldiv [2019-10-15 01:03:31,982 INFO L130 BoogieDeclarations]: Found specification of procedure ecvt [2019-10-15 01:03:31,982 INFO L130 BoogieDeclarations]: Found specification of procedure fcvt [2019-10-15 01:03:31,982 INFO L130 BoogieDeclarations]: Found specification of procedure gcvt [2019-10-15 01:03:31,983 INFO L130 BoogieDeclarations]: Found specification of procedure qecvt [2019-10-15 01:03:31,983 INFO L130 BoogieDeclarations]: Found specification of procedure qfcvt [2019-10-15 01:03:31,983 INFO L130 BoogieDeclarations]: Found specification of procedure qgcvt [2019-10-15 01:03:31,983 INFO L130 BoogieDeclarations]: Found specification of procedure ecvt_r [2019-10-15 01:03:31,983 INFO L130 BoogieDeclarations]: Found specification of procedure fcvt_r [2019-10-15 01:03:31,983 INFO L130 BoogieDeclarations]: Found specification of procedure qecvt_r [2019-10-15 01:03:31,983 INFO L130 BoogieDeclarations]: Found specification of procedure qfcvt_r [2019-10-15 01:03:31,984 INFO L130 BoogieDeclarations]: Found specification of procedure mblen [2019-10-15 01:03:31,984 INFO L130 BoogieDeclarations]: Found specification of procedure mbtowc [2019-10-15 01:03:31,984 INFO L130 BoogieDeclarations]: Found specification of procedure wctomb [2019-10-15 01:03:31,984 INFO L130 BoogieDeclarations]: Found specification of procedure mbstowcs [2019-10-15 01:03:31,984 INFO L130 BoogieDeclarations]: Found specification of procedure wcstombs [2019-10-15 01:03:31,984 INFO L130 BoogieDeclarations]: Found specification of procedure rpmatch [2019-10-15 01:03:31,985 INFO L130 BoogieDeclarations]: Found specification of procedure getsubopt [2019-10-15 01:03:31,985 INFO L130 BoogieDeclarations]: Found specification of procedure getloadavg [2019-10-15 01:03:31,985 INFO L130 BoogieDeclarations]: Found specification of procedure myexit [2019-10-15 01:03:31,986 INFO L130 BoogieDeclarations]: Found specification of procedure main [2019-10-15 01:03:31,986 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2019-10-15 01:03:31,987 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2019-10-15 01:03:31,987 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2019-10-15 01:03:31,987 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2019-10-15 01:03:31,987 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2019-10-15 01:03:31,987 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2019-10-15 01:03:31,987 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2019-10-15 01:03:31,988 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2019-10-15 01:03:32,377 INFO L685 $ProcedureCfgBuilder]: dead code at ProgramPoint myexitFINAL: assume true; [2019-10-15 01:03:32,487 INFO L279 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2019-10-15 01:03:32,487 INFO L284 CfgBuilder]: Removed 2 assume(true) statements. [2019-10-15 01:03:32,489 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 15.10 01:03:32 BoogieIcfgContainer [2019-10-15 01:03:32,489 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2019-10-15 01:03:32,490 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2019-10-15 01:03:32,491 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2019-10-15 01:03:32,494 INFO L275 PluginConnector]: TraceAbstraction initialized [2019-10-15 01:03:32,494 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 15.10 01:03:31" (1/3) ... [2019-10-15 01:03:32,495 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@2ed2a587 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 15.10 01:03:32, skipping insertion in model container [2019-10-15 01:03:32,496 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.10 01:03:31" (2/3) ... [2019-10-15 01:03:32,496 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@2ed2a587 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 15.10 01:03:32, skipping insertion in model container [2019-10-15 01:03:32,496 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 15.10 01:03:32" (3/3) ... [2019-10-15 01:03:32,498 INFO L109 eAbstractionObserver]: Analyzing ICFG simple_built_from_end.i [2019-10-15 01:03:32,509 INFO L152 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2019-10-15 01:03:32,517 INFO L164 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2019-10-15 01:03:32,529 INFO L249 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2019-10-15 01:03:32,554 INFO L373 AbstractCegarLoop]: Interprodecural is true [2019-10-15 01:03:32,555 INFO L374 AbstractCegarLoop]: Hoare is true [2019-10-15 01:03:32,555 INFO L375 AbstractCegarLoop]: Compute interpolants for FPandBP [2019-10-15 01:03:32,555 INFO L376 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2019-10-15 01:03:32,556 INFO L377 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2019-10-15 01:03:32,556 INFO L378 AbstractCegarLoop]: Difference is false [2019-10-15 01:03:32,556 INFO L379 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2019-10-15 01:03:32,556 INFO L383 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2019-10-15 01:03:32,574 INFO L276 IsEmpty]: Start isEmpty. Operand 22 states. [2019-10-15 01:03:32,580 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 11 [2019-10-15 01:03:32,581 INFO L372 BasicCegarLoop]: Found error trace [2019-10-15 01:03:32,582 INFO L380 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-10-15 01:03:32,584 INFO L410 AbstractCegarLoop]: === Iteration 1 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-10-15 01:03:32,589 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-15 01:03:32,590 INFO L82 PathProgramCache]: Analyzing trace with hash 442801557, now seen corresponding path program 1 times [2019-10-15 01:03:32,600 INFO L157 tionRefinementEngine]: Executing refinement strategy TAIPAN [2019-10-15 01:03:32,600 INFO L342 tionRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1544682543] [2019-10-15 01:03:32,601 INFO L116 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-15 01:03:32,601 INFO L116 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-15 01:03:32,601 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-10-15 01:03:32,693 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-15 01:03:32,726 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-10-15 01:03:32,726 INFO L342 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1544682543] [2019-10-15 01:03:32,727 INFO L223 tionRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-10-15 01:03:32,728 INFO L236 tionRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2019-10-15 01:03:32,728 INFO L342 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1918277369] [2019-10-15 01:03:32,732 INFO L442 AbstractCegarLoop]: Interpolant automaton has 2 states [2019-10-15 01:03:32,734 INFO L137 tionRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy TAIPAN [2019-10-15 01:03:32,744 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2019-10-15 01:03:32,745 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2019-10-15 01:03:32,747 INFO L87 Difference]: Start difference. First operand 22 states. Second operand 2 states. [2019-10-15 01:03:32,765 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-10-15 01:03:32,765 INFO L93 Difference]: Finished difference Result 31 states and 38 transitions. [2019-10-15 01:03:32,765 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2019-10-15 01:03:32,767 INFO L78 Accepts]: Start accepts. Automaton has 2 states. Word has length 10 [2019-10-15 01:03:32,767 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-10-15 01:03:32,777 INFO L225 Difference]: With dead ends: 31 [2019-10-15 01:03:32,778 INFO L226 Difference]: Without dead ends: 15 [2019-10-15 01:03:32,781 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 [2019-10-15 01:03:32,802 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 15 states. [2019-10-15 01:03:32,819 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 15 to 15. [2019-10-15 01:03:32,820 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 15 states. [2019-10-15 01:03:32,821 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 15 states to 15 states and 16 transitions. [2019-10-15 01:03:32,824 INFO L78 Accepts]: Start accepts. Automaton has 15 states and 16 transitions. Word has length 10 [2019-10-15 01:03:32,824 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-10-15 01:03:32,824 INFO L462 AbstractCegarLoop]: Abstraction has 15 states and 16 transitions. [2019-10-15 01:03:32,824 INFO L463 AbstractCegarLoop]: Interpolant automaton has 2 states. [2019-10-15 01:03:32,825 INFO L276 IsEmpty]: Start isEmpty. Operand 15 states and 16 transitions. [2019-10-15 01:03:32,825 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 12 [2019-10-15 01:03:32,825 INFO L372 BasicCegarLoop]: Found error trace [2019-10-15 01:03:32,826 INFO L380 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-10-15 01:03:32,826 INFO L410 AbstractCegarLoop]: === Iteration 2 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-10-15 01:03:32,827 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-15 01:03:32,827 INFO L82 PathProgramCache]: Analyzing trace with hash 827465055, now seen corresponding path program 1 times [2019-10-15 01:03:32,827 INFO L157 tionRefinementEngine]: Executing refinement strategy TAIPAN [2019-10-15 01:03:32,827 INFO L342 tionRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [364242832] [2019-10-15 01:03:32,828 INFO L116 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-15 01:03:32,828 INFO L116 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-15 01:03:32,828 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-10-15 01:03:32,847 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-15 01:03:32,905 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-10-15 01:03:32,905 INFO L342 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [364242832] [2019-10-15 01:03:32,905 INFO L223 tionRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-10-15 01:03:32,906 INFO L236 tionRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2019-10-15 01:03:32,906 INFO L342 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [97782266] [2019-10-15 01:03:32,907 INFO L442 AbstractCegarLoop]: Interpolant automaton has 3 states [2019-10-15 01:03:32,908 INFO L137 tionRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy TAIPAN [2019-10-15 01:03:32,908 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2019-10-15 01:03:32,909 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2019-10-15 01:03:32,909 INFO L87 Difference]: Start difference. First operand 15 states and 16 transitions. Second operand 3 states. [2019-10-15 01:03:32,928 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-10-15 01:03:32,929 INFO L93 Difference]: Finished difference Result 25 states and 27 transitions. [2019-10-15 01:03:32,929 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2019-10-15 01:03:32,929 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 11 [2019-10-15 01:03:32,930 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-10-15 01:03:32,931 INFO L225 Difference]: With dead ends: 25 [2019-10-15 01:03:32,931 INFO L226 Difference]: Without dead ends: 19 [2019-10-15 01:03:32,932 INFO L600 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 [2019-10-15 01:03:32,933 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 19 states. [2019-10-15 01:03:32,937 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 19 to 17. [2019-10-15 01:03:32,937 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 17 states. [2019-10-15 01:03:32,938 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 17 states to 17 states and 18 transitions. [2019-10-15 01:03:32,938 INFO L78 Accepts]: Start accepts. Automaton has 17 states and 18 transitions. Word has length 11 [2019-10-15 01:03:32,939 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-10-15 01:03:32,939 INFO L462 AbstractCegarLoop]: Abstraction has 17 states and 18 transitions. [2019-10-15 01:03:32,939 INFO L463 AbstractCegarLoop]: Interpolant automaton has 3 states. [2019-10-15 01:03:32,939 INFO L276 IsEmpty]: Start isEmpty. Operand 17 states and 18 transitions. [2019-10-15 01:03:32,940 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 16 [2019-10-15 01:03:32,940 INFO L372 BasicCegarLoop]: Found error trace [2019-10-15 01:03:32,941 INFO L380 BasicCegarLoop]: trace histogram [2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-10-15 01:03:32,941 INFO L410 AbstractCegarLoop]: === Iteration 3 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-10-15 01:03:32,942 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-15 01:03:32,942 INFO L82 PathProgramCache]: Analyzing trace with hash -589997544, now seen corresponding path program 1 times [2019-10-15 01:03:32,942 INFO L157 tionRefinementEngine]: Executing refinement strategy TAIPAN [2019-10-15 01:03:32,942 INFO L342 tionRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1737605774] [2019-10-15 01:03:32,943 INFO L116 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-15 01:03:32,943 INFO L116 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-15 01:03:32,943 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-10-15 01:03:32,984 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-15 01:03:33,070 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 2 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-10-15 01:03:33,071 INFO L342 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1737605774] [2019-10-15 01:03:33,071 INFO L223 tionRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-10-15 01:03:33,072 INFO L236 tionRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2019-10-15 01:03:33,072 INFO L342 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [406170476] [2019-10-15 01:03:33,073 INFO L442 AbstractCegarLoop]: Interpolant automaton has 4 states [2019-10-15 01:03:33,073 INFO L137 tionRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy TAIPAN [2019-10-15 01:03:33,073 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2019-10-15 01:03:33,074 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2019-10-15 01:03:33,074 INFO L87 Difference]: Start difference. First operand 17 states and 18 transitions. Second operand 4 states. [2019-10-15 01:03:33,151 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-10-15 01:03:33,151 INFO L93 Difference]: Finished difference Result 24 states and 25 transitions. [2019-10-15 01:03:33,151 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2019-10-15 01:03:33,151 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 15 [2019-10-15 01:03:33,152 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-10-15 01:03:33,152 INFO L225 Difference]: With dead ends: 24 [2019-10-15 01:03:33,153 INFO L226 Difference]: Without dead ends: 22 [2019-10-15 01:03:33,153 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 [2019-10-15 01:03:33,154 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 22 states. [2019-10-15 01:03:33,157 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 22 to 19. [2019-10-15 01:03:33,157 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 19 states. [2019-10-15 01:03:33,158 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 19 states to 19 states and 20 transitions. [2019-10-15 01:03:33,158 INFO L78 Accepts]: Start accepts. Automaton has 19 states and 20 transitions. Word has length 15 [2019-10-15 01:03:33,158 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-10-15 01:03:33,159 INFO L462 AbstractCegarLoop]: Abstraction has 19 states and 20 transitions. [2019-10-15 01:03:33,159 INFO L463 AbstractCegarLoop]: Interpolant automaton has 4 states. [2019-10-15 01:03:33,159 INFO L276 IsEmpty]: Start isEmpty. Operand 19 states and 20 transitions. [2019-10-15 01:03:33,159 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 19 [2019-10-15 01:03:33,160 INFO L372 BasicCegarLoop]: Found error trace [2019-10-15 01:03:33,160 INFO L380 BasicCegarLoop]: trace histogram [2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-10-15 01:03:33,160 INFO L410 AbstractCegarLoop]: === Iteration 4 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-10-15 01:03:33,161 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-15 01:03:33,161 INFO L82 PathProgramCache]: Analyzing trace with hash -1605849708, now seen corresponding path program 1 times [2019-10-15 01:03:33,161 INFO L157 tionRefinementEngine]: Executing refinement strategy TAIPAN [2019-10-15 01:03:33,161 INFO L342 tionRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [581852509] [2019-10-15 01:03:33,162 INFO L116 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-15 01:03:33,162 INFO L116 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-15 01:03:33,162 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-10-15 01:03:33,192 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-15 01:03:33,388 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 1 proven. 3 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-10-15 01:03:33,389 INFO L342 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [581852509] [2019-10-15 01:03:33,389 INFO L342 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1411808347] [2019-10-15 01:03:33,389 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 [2019-10-15 01:03:33,511 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-15 01:03:33,514 INFO L256 TraceCheckSpWp]: Trace formula consists of 78 conjuncts, 19 conjunts are in the unsatisfiable core [2019-10-15 01:03:33,521 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2019-10-15 01:03:33,590 INFO L375 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 13 treesize of output 9 [2019-10-15 01:03:33,591 INFO L496 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2019-10-15 01:03:33,604 INFO L567 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2019-10-15 01:03:33,608 INFO L375 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 13 treesize of output 9 [2019-10-15 01:03:33,609 INFO L496 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 1 xjuncts. [2019-10-15 01:03:33,618 INFO L567 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2019-10-15 01:03:33,618 INFO L496 ElimStorePlain]: Start of recursive call 1: 2 dim-2 vars, End of recursive call: and 1 xjuncts. [2019-10-15 01:03:33,619 INFO L221 ElimStorePlain]: Needed 3 recursive calls to eliminate 2 variables, input treesize:30, output treesize:22 [2019-10-15 01:03:33,641 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 15 treesize of output 7 [2019-10-15 01:03:33,642 INFO L496 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2019-10-15 01:03:33,653 INFO L567 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2019-10-15 01:03:33,658 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 15 treesize of output 7 [2019-10-15 01:03:33,661 INFO L496 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 1 xjuncts. [2019-10-15 01:03:33,672 INFO L567 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2019-10-15 01:03:33,673 INFO L496 ElimStorePlain]: Start of recursive call 1: 1 dim-0 vars, 2 dim-2 vars, End of recursive call: and 1 xjuncts. [2019-10-15 01:03:33,673 INFO L221 ElimStorePlain]: Needed 3 recursive calls to eliminate 3 variables, input treesize:29, output treesize:7 [2019-10-15 01:03:33,676 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 1 proven. 3 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-10-15 01:03:33,677 INFO L321 TraceCheckSpWp]: Computing backward predicates... [2019-10-15 01:03:33,724 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 1 proven. 3 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-10-15 01:03:33,725 INFO L342 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleAbstractInterpretation [498227782] [2019-10-15 01:03:33,733 INFO L211 CegarAbsIntRunner]: Running AI on error trace of length 19 [2019-10-15 01:03:33,778 INFO L148 AbstractInterpreter]: Using domain IntervalDomain [2019-10-15 01:03:33,778 INFO L101 FixpointEngine]: Starting fixpoint engine with domain IntervalDomain (maxUnwinding=3, maxParallelStates=2) [2019-10-15 01:03:33,880 INFO L266 AbstractInterpreter]: Error location(s) were unreachable [2019-10-15 01:03:33,885 INFO L272 AbstractInterpreter]: Visited 10 different actions 10 times. Never merged. Never widened. Performed 25 root evaluator evaluations with a maximum evaluation depth of 7. Performed 25 inverse root evaluator evaluations with a maximum inverse evaluation depth of 7. Never found a fixpoint. Largest state had 26 variables. [2019-10-15 01:03:33,888 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-15 01:03:33,889 INFO L536 sIntCurrentIteration]: Generating AbsInt predicates [2019-10-15 01:03:33,952 INFO L227 lantSequenceWeakener]: Weakened 10 states. On average, predicates are now at 78.1% of their original sizes. [2019-10-15 01:03:33,953 INFO L551 sIntCurrentIteration]: Unifying AI predicates [2019-10-15 01:03:33,961 INFO L553 sIntCurrentIteration]: We unified 17 AI predicates to 17 [2019-10-15 01:03:33,962 INFO L562 sIntCurrentIteration]: Finished generation of AbsInt predicates [2019-10-15 01:03:33,962 INFO L223 tionRefinementEngine]: Constructing automaton from 1 perfect and 3 imperfect interpolant sequences. [2019-10-15 01:03:33,962 INFO L236 tionRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [5, 5, 4] total 8 [2019-10-15 01:03:33,963 INFO L342 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [482200126] [2019-10-15 01:03:33,963 INFO L442 AbstractCegarLoop]: Interpolant automaton has 4 states [2019-10-15 01:03:33,964 INFO L137 tionRefinementEngine]: Using predicate unifier AbsIntPredicateUnifier provided by strategy TAIPAN [2019-10-15 01:03:33,964 INFO L124 tionRefinementEngine]: Using hoare triple checker CachingHoareTripleCheckerMap provided by strategy [2019-10-15 01:03:33,965 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2019-10-15 01:03:33,965 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2019-10-15 01:03:33,965 INFO L87 Difference]: Start difference. First operand 19 states and 20 transitions. Second operand 4 states. [2019-10-15 01:03:33,971 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-10-15 01:03:33,971 INFO L93 Difference]: Finished difference Result 19 states and 20 transitions. [2019-10-15 01:03:33,971 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2019-10-15 01:03:33,971 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 18 [2019-10-15 01:03:33,971 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-10-15 01:03:33,972 INFO L225 Difference]: With dead ends: 19 [2019-10-15 01:03:33,972 INFO L226 Difference]: Without dead ends: 0 [2019-10-15 01:03:33,973 INFO L600 BasicCegarLoop]: 0 DeclaredPredicates, 17 GetRequests, 15 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2019-10-15 01:03:33,973 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2019-10-15 01:03:33,973 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2019-10-15 01:03:33,973 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 0 states. [2019-10-15 01:03:33,973 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2019-10-15 01:03:33,974 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 18 [2019-10-15 01:03:33,974 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-10-15 01:03:33,974 INFO L462 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2019-10-15 01:03:33,974 INFO L463 AbstractCegarLoop]: Interpolant automaton has 4 states. [2019-10-15 01:03:33,974 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2019-10-15 01:03:33,974 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2019-10-15 01:03:34,180 WARN L499 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 z3 -smt2 -in SMTLIB2_COMPLIANT=true [2019-10-15 01:03:34,189 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends 0 states and 0 transitions. [2019-10-15 01:03:34,223 INFO L443 ceAbstractionStarter]: For program point ULTIMATE.initFINAL(line -1) no Hoare annotation was computed. [2019-10-15 01:03:34,224 INFO L446 ceAbstractionStarter]: At program point ULTIMATE.initENTRY(line -1) the Hoare annotation is: true [2019-10-15 01:03:34,224 INFO L443 ceAbstractionStarter]: For program point ULTIMATE.initEXIT(line -1) no Hoare annotation was computed. [2019-10-15 01:03:34,224 INFO L446 ceAbstractionStarter]: At program point myexitENTRY(lines 513 515) the Hoare annotation is: true [2019-10-15 01:03:34,224 INFO L443 ceAbstractionStarter]: For program point myexitEXIT(lines 513 515) no Hoare annotation was computed. [2019-10-15 01:03:34,224 INFO L446 ceAbstractionStarter]: At program point L514(line 514) the Hoare annotation is: true [2019-10-15 01:03:34,224 INFO L443 ceAbstractionStarter]: For program point __bswap_32ENTRY(lines 161 165) no Hoare annotation was computed. [2019-10-15 01:03:34,225 INFO L443 ceAbstractionStarter]: For program point __bswap_32FINAL(lines 161 165) no Hoare annotation was computed. [2019-10-15 01:03:34,225 INFO L443 ceAbstractionStarter]: For program point __bswap_32EXIT(lines 161 165) no Hoare annotation was computed. [2019-10-15 01:03:34,225 INFO L443 ceAbstractionStarter]: For program point __uint64_identityFINAL(lines 181 185) no Hoare annotation was computed. [2019-10-15 01:03:34,225 INFO L443 ceAbstractionStarter]: For program point __uint64_identityENTRY(lines 181 185) no Hoare annotation was computed. [2019-10-15 01:03:34,225 INFO L443 ceAbstractionStarter]: For program point __uint64_identityEXIT(lines 181 185) no Hoare annotation was computed. [2019-10-15 01:03:34,225 INFO L443 ceAbstractionStarter]: For program point __bswap_64ENTRY(lines 166 170) no Hoare annotation was computed. [2019-10-15 01:03:34,225 INFO L443 ceAbstractionStarter]: For program point __bswap_64FINAL(lines 166 170) no Hoare annotation was computed. [2019-10-15 01:03:34,225 INFO L443 ceAbstractionStarter]: For program point __bswap_64EXIT(lines 166 170) no Hoare annotation was computed. [2019-10-15 01:03:34,226 INFO L443 ceAbstractionStarter]: For program point __uint16_identityENTRY(lines 171 175) no Hoare annotation was computed. [2019-10-15 01:03:34,226 INFO L443 ceAbstractionStarter]: For program point __uint16_identityEXIT(lines 171 175) no Hoare annotation was computed. [2019-10-15 01:03:34,226 INFO L443 ceAbstractionStarter]: For program point __uint16_identityFINAL(lines 171 175) no Hoare annotation was computed. [2019-10-15 01:03:34,226 INFO L443 ceAbstractionStarter]: For program point ULTIMATE.startEXIT(line -1) no Hoare annotation was computed. [2019-10-15 01:03:34,226 INFO L446 ceAbstractionStarter]: At program point L-1(line -1) the Hoare annotation is: true [2019-10-15 01:03:34,226 INFO L446 ceAbstractionStarter]: At program point ULTIMATE.startENTRY(line -1) the Hoare annotation is: true [2019-10-15 01:03:34,226 INFO L443 ceAbstractionStarter]: For program point ULTIMATE.startFINAL(line -1) no Hoare annotation was computed. [2019-10-15 01:03:34,226 INFO L443 ceAbstractionStarter]: For program point mainEXIT(lines 520 536) no Hoare annotation was computed. [2019-10-15 01:03:34,227 INFO L443 ceAbstractionStarter]: For program point L531(lines 531 533) no Hoare annotation was computed. [2019-10-15 01:03:34,227 INFO L443 ceAbstractionStarter]: For program point L531-2(lines 531 533) no Hoare annotation was computed. [2019-10-15 01:03:34,227 INFO L443 ceAbstractionStarter]: For program point L525(line 525) no Hoare annotation was computed. [2019-10-15 01:03:34,227 INFO L446 ceAbstractionStarter]: At program point L525-1(line 525) the Hoare annotation is: true [2019-10-15 01:03:34,227 INFO L443 ceAbstractionStarter]: For program point L523-1(lines 523 529) no Hoare annotation was computed. [2019-10-15 01:03:34,227 INFO L443 ceAbstractionStarter]: For program point L525-3(line 525) no Hoare annotation was computed. [2019-10-15 01:03:34,227 INFO L439 ceAbstractionStarter]: At program point L523-3(lines 523 529) the Hoare annotation is: (and (= 0 main_~p~0.base) (= main_~p~0.offset 0)) [2019-10-15 01:03:34,228 INFO L446 ceAbstractionStarter]: At program point mainENTRY(lines 520 536) the Hoare annotation is: true [2019-10-15 01:03:34,228 INFO L443 ceAbstractionStarter]: For program point mainErr0ASSERT_VIOLATIONERROR_FUNCTION(line 532) no Hoare annotation was computed. [2019-10-15 01:03:34,228 INFO L443 ceAbstractionStarter]: For program point L532(line 532) no Hoare annotation was computed. [2019-10-15 01:03:34,228 INFO L443 ceAbstractionStarter]: For program point L530-1(lines 520 536) no Hoare annotation was computed. [2019-10-15 01:03:34,228 INFO L443 ceAbstractionStarter]: For program point L530-2(lines 520 536) no Hoare annotation was computed. [2019-10-15 01:03:34,228 INFO L443 ceAbstractionStarter]: For program point __uint32_identityFINAL(lines 176 180) no Hoare annotation was computed. [2019-10-15 01:03:34,228 INFO L443 ceAbstractionStarter]: For program point __uint32_identityENTRY(lines 176 180) no Hoare annotation was computed. [2019-10-15 01:03:34,229 INFO L443 ceAbstractionStarter]: For program point __uint32_identityEXIT(lines 176 180) no Hoare annotation was computed. [2019-10-15 01:03:34,243 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 15.10 01:03:34 BoogieIcfgContainer [2019-10-15 01:03:34,243 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2019-10-15 01:03:34,245 INFO L168 Benchmark]: Toolchain (without parser) took 3048.94 ms. Allocated memory was 138.4 MB in the beginning and 235.4 MB in the end (delta: 97.0 MB). Free memory was 101.7 MB in the beginning and 126.4 MB in the end (delta: -24.7 MB). Peak memory consumption was 72.3 MB. Max. memory is 7.1 GB. [2019-10-15 01:03:34,246 INFO L168 Benchmark]: CDTParser took 0.21 ms. Allocated memory is still 138.4 MB. Free memory was 121.6 MB in the beginning and 121.4 MB in the end (delta: 209.7 kB). Peak memory consumption was 209.7 kB. Max. memory is 7.1 GB. [2019-10-15 01:03:34,247 INFO L168 Benchmark]: CACSL2BoogieTranslator took 649.62 ms. Allocated memory was 138.4 MB in the beginning and 201.9 MB in the end (delta: 63.4 MB). Free memory was 101.5 MB in the beginning and 166.4 MB in the end (delta: -64.9 MB). Peak memory consumption was 23.5 MB. Max. memory is 7.1 GB. [2019-10-15 01:03:34,248 INFO L168 Benchmark]: Boogie Preprocessor took 54.97 ms. Allocated memory is still 201.9 MB. Free memory was 166.4 MB in the beginning and 163.7 MB in the end (delta: 2.7 MB). Peak memory consumption was 2.7 MB. Max. memory is 7.1 GB. [2019-10-15 01:03:34,249 INFO L168 Benchmark]: RCFGBuilder took 586.70 ms. Allocated memory is still 201.9 MB. Free memory was 163.7 MB in the beginning and 123.6 MB in the end (delta: 40.1 MB). Peak memory consumption was 40.1 MB. Max. memory is 7.1 GB. [2019-10-15 01:03:34,250 INFO L168 Benchmark]: TraceAbstraction took 1753.11 ms. Allocated memory was 201.9 MB in the beginning and 235.4 MB in the end (delta: 33.6 MB). Free memory was 122.9 MB in the beginning and 126.4 MB in the end (delta: -3.5 MB). Peak memory consumption was 30.1 MB. Max. memory is 7.1 GB. [2019-10-15 01:03:34,254 INFO L335 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.21 ms. Allocated memory is still 138.4 MB. Free memory was 121.6 MB in the beginning and 121.4 MB in the end (delta: 209.7 kB). Peak memory consumption was 209.7 kB. Max. memory is 7.1 GB. * CACSL2BoogieTranslator took 649.62 ms. Allocated memory was 138.4 MB in the beginning and 201.9 MB in the end (delta: 63.4 MB). Free memory was 101.5 MB in the beginning and 166.4 MB in the end (delta: -64.9 MB). Peak memory consumption was 23.5 MB. Max. memory is 7.1 GB. * Boogie Preprocessor took 54.97 ms. Allocated memory is still 201.9 MB. Free memory was 166.4 MB in the beginning and 163.7 MB in the end (delta: 2.7 MB). Peak memory consumption was 2.7 MB. Max. memory is 7.1 GB. * RCFGBuilder took 586.70 ms. Allocated memory is still 201.9 MB. Free memory was 163.7 MB in the beginning and 123.6 MB in the end (delta: 40.1 MB). Peak memory consumption was 40.1 MB. Max. memory is 7.1 GB. * TraceAbstraction took 1753.11 ms. Allocated memory was 201.9 MB in the beginning and 235.4 MB in the end (delta: 33.6 MB). Free memory was 122.9 MB in the beginning and 126.4 MB in the end (delta: -3.5 MB). Peak memory consumption was 30.1 MB. Max. memory is 7.1 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - PositiveResult [Line: 532]: 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: 514]: Loop Invariant Derived loop invariant: 1 - InvariantResult [Line: 523]: Loop Invariant Derived loop invariant: 0 == p && p == 0 - StatisticsResult: Ultimate Automizer benchmark data CFG has 9 procedures, 38 locations, 1 error locations. Result: SAFE, OverallTime: 1.6s, OverallIterations: 4, TraceHistogramMax: 2, AutomataDifference: 0.1s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, HoareTripleCheckerStatistics: 62 SDtfs, 6 SDslu, 43 SDs, 0 SdLazy, 16 SolverSat, 1 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 0.0s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 27 GetRequests, 21 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=22occurred in iteration=0, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: 0.0s AutomataMinimizationTime, 4 MinimizatonAttempts, 5 StatesRemovedByMinimization, 2 NontrivialMinimizations, HoareAnnotationStatistics: 0.0s HoareAnnotationTime, 8 LocationsWithAnnotation, 8 PreInvPairs, 9 NumberOfFragments, 14 HoareAnnotationTreeSize, 8 FomulaSimplifications, 0 FormulaSimplificationTreeSizeReduction, 0.0s HoareSimplificationTime, 8 FomulaSimplificationsInter, 3 FormulaSimplificationTreeSizeReductionInter, 0.0s HoareSimplificationTimeInter, RefinementEngineStatistics: TRACE_CHECK: 0.0s SsaConstructionTime, 0.0s SatisfiabilityAnalysisTime, 0.5s InterpolantComputationTime, 72 NumberOfCodeBlocks, 72 NumberOfCodeBlocksAsserted, 5 NumberOfCheckSat, 84 ConstructedInterpolants, 0 QuantifiedInterpolants, 8538 SizeOfPredicates, 8 NumberOfNonLiveVariables, 78 ConjunctsInSsa, 19 ConjunctsInUnsatCore, 6 InterpolantComputations, 3 PerfectInterpolantSequences, 5/14 InterpolantCoveringCapability, INVARIANT_SYNTHESIS: No data available, INTERPOLANT_CONSOLIDATION: No data available, ABSTRACT_INTERPRETATION: TIME[ms]: 156, ITERATIONS: 1, WAS_STRONG: 1, WEAKENING_RATIO: 0.8879551820728292, AVG_VARS_REMOVED_DURING_WEAKENING: 0.8235294117647058, AVG_WEAKENED_CONJUNCTS: 1.7647058823529411, PDR: No data available, SIFA: No data available, ReuseStatistics: No data available RESULT: Ultimate proved your program to be correct! Received shutdown request...