/usr/bin/java -Xmx8000000000 -Xss4m -jar ./plugins/org.eclipse.equinox.launcher_1.3.100.v20150511-1540.jar -data @noDefault -ultimatedata ./data -tc ../../../trunk/examples/toolchains/AutomizerC.xml -s ../../../trunk/examples/settings/automizer/acceleratedInterpolation/acceleratedInterpolationFastUPR_32.epf -i ../../../trunk/examples/svcomp/ldv-regression/fo_test.i -------------------------------------------------------------------------------- This is Ultimate 0.1.25-267fbe0 [2020-07-17 13:26:32,860 INFO L177 SettingsManager]: Resetting all preferences to default values... [2020-07-17 13:26:32,862 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2020-07-17 13:26:32,874 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2020-07-17 13:26:32,875 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2020-07-17 13:26:32,876 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2020-07-17 13:26:32,877 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2020-07-17 13:26:32,879 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2020-07-17 13:26:32,880 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2020-07-17 13:26:32,881 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2020-07-17 13:26:32,882 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2020-07-17 13:26:32,883 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2020-07-17 13:26:32,883 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2020-07-17 13:26:32,884 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2020-07-17 13:26:32,885 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2020-07-17 13:26:32,886 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2020-07-17 13:26:32,887 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2020-07-17 13:26:32,888 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2020-07-17 13:26:32,889 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2020-07-17 13:26:32,891 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2020-07-17 13:26:32,893 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2020-07-17 13:26:32,893 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2020-07-17 13:26:32,895 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2020-07-17 13:26:32,895 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2020-07-17 13:26:32,898 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2020-07-17 13:26:32,898 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2020-07-17 13:26:32,898 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2020-07-17 13:26:32,899 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2020-07-17 13:26:32,899 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2020-07-17 13:26:32,900 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2020-07-17 13:26:32,900 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2020-07-17 13:26:32,901 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2020-07-17 13:26:32,902 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2020-07-17 13:26:32,902 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2020-07-17 13:26:32,903 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2020-07-17 13:26:32,904 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2020-07-17 13:26:32,904 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2020-07-17 13:26:32,904 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2020-07-17 13:26:32,905 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2020-07-17 13:26:32,905 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2020-07-17 13:26:32,906 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2020-07-17 13:26:32,907 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/settings/automizer/acceleratedInterpolation/acceleratedInterpolationFastUPR_32.epf [2020-07-17 13:26:32,915 INFO L113 SettingsManager]: Loading preferences was successful [2020-07-17 13:26:32,916 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2020-07-17 13:26:32,917 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2020-07-17 13:26:32,917 INFO L138 SettingsManager]: * sizeof long=4 [2020-07-17 13:26:32,917 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2020-07-17 13:26:32,917 INFO L138 SettingsManager]: * sizeof POINTER=4 [2020-07-17 13:26:32,918 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2020-07-17 13:26:32,918 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2020-07-17 13:26:32,918 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2020-07-17 13:26:32,918 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2020-07-17 13:26:32,918 INFO L138 SettingsManager]: * sizeof long double=12 [2020-07-17 13:26:32,919 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2020-07-17 13:26:32,919 INFO L138 SettingsManager]: * Use constant arrays=true [2020-07-17 13:26:32,919 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2020-07-17 13:26:32,919 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2020-07-17 13:26:32,919 INFO L138 SettingsManager]: * Size of a code block=SingleStatement [2020-07-17 13:26:32,920 INFO L138 SettingsManager]: * To the following directory=./dump/ [2020-07-17 13:26:32,920 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2020-07-17 13:26:32,920 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-07-17 13:26:32,920 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2020-07-17 13:26:32,920 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=AcceleratedInterpolation [2020-07-17 13:26:32,920 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2020-07-17 13:26:32,921 INFO L138 SettingsManager]: * Use separate solver for trace checks=false [2020-07-17 13:26:33,199 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2020-07-17 13:26:33,216 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2020-07-17 13:26:33,220 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2020-07-17 13:26:33,222 INFO L271 PluginConnector]: Initializing CDTParser... [2020-07-17 13:26:33,222 INFO L275 PluginConnector]: CDTParser initialized [2020-07-17 13:26:33,223 INFO L429 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/ldv-regression/fo_test.i [2020-07-17 13:26:33,301 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/be869ad75/055376baf18e4869b8a447fcdad68cf0/FLAGf1478e6d7 [2020-07-17 13:26:33,832 INFO L306 CDTParser]: Found 1 translation units. [2020-07-17 13:26:33,832 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/ldv-regression/fo_test.i [2020-07-17 13:26:33,852 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/be869ad75/055376baf18e4869b8a447fcdad68cf0/FLAGf1478e6d7 [2020-07-17 13:26:34,121 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/be869ad75/055376baf18e4869b8a447fcdad68cf0 [2020-07-17 13:26:34,129 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2020-07-17 13:26:34,132 INFO L131 ToolchainWalker]: Walking toolchain with 4 elements. [2020-07-17 13:26:34,133 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2020-07-17 13:26:34,133 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2020-07-17 13:26:34,137 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2020-07-17 13:26:34,138 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 17.07 01:26:34" (1/1) ... [2020-07-17 13:26:34,141 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@2936918d and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.07 01:26:34, skipping insertion in model container [2020-07-17 13:26:34,141 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 17.07 01:26:34" (1/1) ... [2020-07-17 13:26:34,148 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2020-07-17 13:26:34,195 INFO L178 MainTranslator]: Built tables and reachable declarations [2020-07-17 13:26:34,663 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-07-17 13:26:34,672 INFO L203 MainTranslator]: Completed pre-run [2020-07-17 13:26:34,737 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-07-17 13:26:34,814 INFO L208 MainTranslator]: Completed translation [2020-07-17 13:26:34,814 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.07 01:26:34 WrapperNode [2020-07-17 13:26:34,814 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2020-07-17 13:26:34,815 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2020-07-17 13:26:34,815 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2020-07-17 13:26:34,815 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2020-07-17 13:26:34,828 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.07 01:26:34" (1/1) ... [2020-07-17 13:26:34,828 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.07 01:26:34" (1/1) ... [2020-07-17 13:26:34,844 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.07 01:26:34" (1/1) ... [2020-07-17 13:26:34,844 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.07 01:26:34" (1/1) ... [2020-07-17 13:26:34,856 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.07 01:26:34" (1/1) ... [2020-07-17 13:26:34,858 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.07 01:26:34" (1/1) ... [2020-07-17 13:26:34,861 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.07 01:26:34" (1/1) ... [2020-07-17 13:26:34,868 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2020-07-17 13:26:34,868 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2020-07-17 13:26:34,868 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2020-07-17 13:26:34,868 INFO L275 PluginConnector]: RCFGBuilder initialized [2020-07-17 13:26:34,869 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.07 01:26:34" (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 [2020-07-17 13:26:34,933 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2020-07-17 13:26:34,939 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2020-07-17 13:26:34,939 INFO L138 BoogieDeclarations]: Found implementation of procedure __blast_assert [2020-07-17 13:26:34,939 INFO L138 BoogieDeclarations]: Found implementation of procedure open [2020-07-17 13:26:34,939 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2020-07-17 13:26:34,939 INFO L138 BoogieDeclarations]: Found implementation of procedure l_read [2020-07-17 13:26:34,939 INFO L138 BoogieDeclarations]: Found implementation of procedure l_open [2020-07-17 13:26:34,939 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_error [2020-07-17 13:26:34,940 INFO L130 BoogieDeclarations]: Found specification of procedure __ctype_get_mb_cur_max [2020-07-17 13:26:34,940 INFO L130 BoogieDeclarations]: Found specification of procedure atof [2020-07-17 13:26:34,940 INFO L130 BoogieDeclarations]: Found specification of procedure atoi [2020-07-17 13:26:34,940 INFO L130 BoogieDeclarations]: Found specification of procedure atol [2020-07-17 13:26:34,940 INFO L130 BoogieDeclarations]: Found specification of procedure atoll [2020-07-17 13:26:34,940 INFO L130 BoogieDeclarations]: Found specification of procedure strtod [2020-07-17 13:26:34,940 INFO L130 BoogieDeclarations]: Found specification of procedure strtof [2020-07-17 13:26:34,940 INFO L130 BoogieDeclarations]: Found specification of procedure strtold [2020-07-17 13:26:34,940 INFO L130 BoogieDeclarations]: Found specification of procedure strtol [2020-07-17 13:26:34,941 INFO L130 BoogieDeclarations]: Found specification of procedure strtoul [2020-07-17 13:26:34,941 INFO L130 BoogieDeclarations]: Found specification of procedure strtoq [2020-07-17 13:26:34,941 INFO L130 BoogieDeclarations]: Found specification of procedure strtouq [2020-07-17 13:26:34,941 INFO L130 BoogieDeclarations]: Found specification of procedure strtoll [2020-07-17 13:26:34,941 INFO L130 BoogieDeclarations]: Found specification of procedure strtoull [2020-07-17 13:26:34,941 INFO L130 BoogieDeclarations]: Found specification of procedure l64a [2020-07-17 13:26:34,942 INFO L130 BoogieDeclarations]: Found specification of procedure a64l [2020-07-17 13:26:34,942 INFO L130 BoogieDeclarations]: Found specification of procedure select [2020-07-17 13:26:34,942 INFO L130 BoogieDeclarations]: Found specification of procedure pselect [2020-07-17 13:26:34,943 INFO L130 BoogieDeclarations]: Found specification of procedure gnu_dev_major [2020-07-17 13:26:34,944 INFO L130 BoogieDeclarations]: Found specification of procedure gnu_dev_minor [2020-07-17 13:26:34,944 INFO L130 BoogieDeclarations]: Found specification of procedure gnu_dev_makedev [2020-07-17 13:26:34,944 INFO L130 BoogieDeclarations]: Found specification of procedure random [2020-07-17 13:26:34,944 INFO L130 BoogieDeclarations]: Found specification of procedure srandom [2020-07-17 13:26:34,944 INFO L130 BoogieDeclarations]: Found specification of procedure initstate [2020-07-17 13:26:34,947 INFO L130 BoogieDeclarations]: Found specification of procedure setstate [2020-07-17 13:26:34,947 INFO L130 BoogieDeclarations]: Found specification of procedure random_r [2020-07-17 13:26:34,948 INFO L130 BoogieDeclarations]: Found specification of procedure srandom_r [2020-07-17 13:26:34,948 INFO L130 BoogieDeclarations]: Found specification of procedure initstate_r [2020-07-17 13:26:34,948 INFO L130 BoogieDeclarations]: Found specification of procedure setstate_r [2020-07-17 13:26:34,948 INFO L130 BoogieDeclarations]: Found specification of procedure rand [2020-07-17 13:26:34,949 INFO L130 BoogieDeclarations]: Found specification of procedure srand [2020-07-17 13:26:34,949 INFO L130 BoogieDeclarations]: Found specification of procedure rand_r [2020-07-17 13:26:34,949 INFO L130 BoogieDeclarations]: Found specification of procedure drand48 [2020-07-17 13:26:34,949 INFO L130 BoogieDeclarations]: Found specification of procedure erand48 [2020-07-17 13:26:34,949 INFO L130 BoogieDeclarations]: Found specification of procedure lrand48 [2020-07-17 13:26:34,949 INFO L130 BoogieDeclarations]: Found specification of procedure nrand48 [2020-07-17 13:26:34,950 INFO L130 BoogieDeclarations]: Found specification of procedure mrand48 [2020-07-17 13:26:34,950 INFO L130 BoogieDeclarations]: Found specification of procedure jrand48 [2020-07-17 13:26:34,950 INFO L130 BoogieDeclarations]: Found specification of procedure srand48 [2020-07-17 13:26:34,950 INFO L130 BoogieDeclarations]: Found specification of procedure seed48 [2020-07-17 13:26:34,951 INFO L130 BoogieDeclarations]: Found specification of procedure lcong48 [2020-07-17 13:26:34,951 INFO L130 BoogieDeclarations]: Found specification of procedure drand48_r [2020-07-17 13:26:34,951 INFO L130 BoogieDeclarations]: Found specification of procedure erand48_r [2020-07-17 13:26:34,951 INFO L130 BoogieDeclarations]: Found specification of procedure lrand48_r [2020-07-17 13:26:34,951 INFO L130 BoogieDeclarations]: Found specification of procedure nrand48_r [2020-07-17 13:26:34,951 INFO L130 BoogieDeclarations]: Found specification of procedure mrand48_r [2020-07-17 13:26:34,952 INFO L130 BoogieDeclarations]: Found specification of procedure jrand48_r [2020-07-17 13:26:34,952 INFO L130 BoogieDeclarations]: Found specification of procedure srand48_r [2020-07-17 13:26:34,952 INFO L130 BoogieDeclarations]: Found specification of procedure seed48_r [2020-07-17 13:26:34,952 INFO L130 BoogieDeclarations]: Found specification of procedure lcong48_r [2020-07-17 13:26:34,952 INFO L130 BoogieDeclarations]: Found specification of procedure malloc [2020-07-17 13:26:34,953 INFO L130 BoogieDeclarations]: Found specification of procedure calloc [2020-07-17 13:26:34,953 INFO L130 BoogieDeclarations]: Found specification of procedure realloc [2020-07-17 13:26:34,953 INFO L130 BoogieDeclarations]: Found specification of procedure free [2020-07-17 13:26:34,953 INFO L130 BoogieDeclarations]: Found specification of procedure cfree [2020-07-17 13:26:34,953 INFO L130 BoogieDeclarations]: Found specification of procedure alloca [2020-07-17 13:26:34,953 INFO L130 BoogieDeclarations]: Found specification of procedure valloc [2020-07-17 13:26:34,954 INFO L130 BoogieDeclarations]: Found specification of procedure posix_memalign [2020-07-17 13:26:34,954 INFO L130 BoogieDeclarations]: Found specification of procedure abort [2020-07-17 13:26:34,954 INFO L130 BoogieDeclarations]: Found specification of procedure atexit [2020-07-17 13:26:34,954 INFO L130 BoogieDeclarations]: Found specification of procedure on_exit [2020-07-17 13:26:34,954 INFO L130 BoogieDeclarations]: Found specification of procedure exit [2020-07-17 13:26:34,954 INFO L130 BoogieDeclarations]: Found specification of procedure _Exit [2020-07-17 13:26:34,954 INFO L130 BoogieDeclarations]: Found specification of procedure getenv [2020-07-17 13:26:34,955 INFO L130 BoogieDeclarations]: Found specification of procedure __secure_getenv [2020-07-17 13:26:34,955 INFO L130 BoogieDeclarations]: Found specification of procedure putenv [2020-07-17 13:26:34,955 INFO L130 BoogieDeclarations]: Found specification of procedure setenv [2020-07-17 13:26:34,955 INFO L130 BoogieDeclarations]: Found specification of procedure unsetenv [2020-07-17 13:26:34,955 INFO L130 BoogieDeclarations]: Found specification of procedure clearenv [2020-07-17 13:26:34,956 INFO L130 BoogieDeclarations]: Found specification of procedure mktemp [2020-07-17 13:26:34,956 INFO L130 BoogieDeclarations]: Found specification of procedure mkstemp [2020-07-17 13:26:34,956 INFO L130 BoogieDeclarations]: Found specification of procedure mkstemps [2020-07-17 13:26:34,957 INFO L130 BoogieDeclarations]: Found specification of procedure mkdtemp [2020-07-17 13:26:34,957 INFO L130 BoogieDeclarations]: Found specification of procedure system [2020-07-17 13:26:34,957 INFO L130 BoogieDeclarations]: Found specification of procedure realpath [2020-07-17 13:26:34,958 INFO L130 BoogieDeclarations]: Found specification of procedure bsearch [2020-07-17 13:26:34,958 INFO L130 BoogieDeclarations]: Found specification of procedure qsort [2020-07-17 13:26:34,958 INFO L130 BoogieDeclarations]: Found specification of procedure abs [2020-07-17 13:26:34,958 INFO L130 BoogieDeclarations]: Found specification of procedure labs [2020-07-17 13:26:34,958 INFO L130 BoogieDeclarations]: Found specification of procedure llabs [2020-07-17 13:26:34,959 INFO L130 BoogieDeclarations]: Found specification of procedure div [2020-07-17 13:26:34,959 INFO L130 BoogieDeclarations]: Found specification of procedure ldiv [2020-07-17 13:26:34,959 INFO L130 BoogieDeclarations]: Found specification of procedure lldiv [2020-07-17 13:26:34,959 INFO L130 BoogieDeclarations]: Found specification of procedure ecvt [2020-07-17 13:26:34,959 INFO L130 BoogieDeclarations]: Found specification of procedure fcvt [2020-07-17 13:26:34,959 INFO L130 BoogieDeclarations]: Found specification of procedure gcvt [2020-07-17 13:26:34,959 INFO L130 BoogieDeclarations]: Found specification of procedure qecvt [2020-07-17 13:26:34,960 INFO L130 BoogieDeclarations]: Found specification of procedure qfcvt [2020-07-17 13:26:34,960 INFO L130 BoogieDeclarations]: Found specification of procedure qgcvt [2020-07-17 13:26:34,960 INFO L130 BoogieDeclarations]: Found specification of procedure ecvt_r [2020-07-17 13:26:34,961 INFO L130 BoogieDeclarations]: Found specification of procedure fcvt_r [2020-07-17 13:26:34,961 INFO L130 BoogieDeclarations]: Found specification of procedure qecvt_r [2020-07-17 13:26:34,961 INFO L130 BoogieDeclarations]: Found specification of procedure qfcvt_r [2020-07-17 13:26:34,961 INFO L130 BoogieDeclarations]: Found specification of procedure mblen [2020-07-17 13:26:34,961 INFO L130 BoogieDeclarations]: Found specification of procedure mbtowc [2020-07-17 13:26:34,961 INFO L130 BoogieDeclarations]: Found specification of procedure wctomb [2020-07-17 13:26:34,961 INFO L130 BoogieDeclarations]: Found specification of procedure mbstowcs [2020-07-17 13:26:34,962 INFO L130 BoogieDeclarations]: Found specification of procedure wcstombs [2020-07-17 13:26:34,962 INFO L130 BoogieDeclarations]: Found specification of procedure rpmatch [2020-07-17 13:26:34,962 INFO L130 BoogieDeclarations]: Found specification of procedure posix_openpt [2020-07-17 13:26:34,962 INFO L130 BoogieDeclarations]: Found specification of procedure getloadavg [2020-07-17 13:26:34,962 INFO L130 BoogieDeclarations]: Found specification of procedure __blast_assert [2020-07-17 13:26:34,962 INFO L130 BoogieDeclarations]: Found specification of procedure stat [2020-07-17 13:26:34,962 INFO L130 BoogieDeclarations]: Found specification of procedure fstat [2020-07-17 13:26:34,963 INFO L130 BoogieDeclarations]: Found specification of procedure fstatat [2020-07-17 13:26:34,963 INFO L130 BoogieDeclarations]: Found specification of procedure lstat [2020-07-17 13:26:34,963 INFO L130 BoogieDeclarations]: Found specification of procedure chmod [2020-07-17 13:26:34,963 INFO L130 BoogieDeclarations]: Found specification of procedure lchmod [2020-07-17 13:26:34,963 INFO L130 BoogieDeclarations]: Found specification of procedure fchmod [2020-07-17 13:26:34,963 INFO L130 BoogieDeclarations]: Found specification of procedure fchmodat [2020-07-17 13:26:34,963 INFO L130 BoogieDeclarations]: Found specification of procedure umask [2020-07-17 13:26:34,964 INFO L130 BoogieDeclarations]: Found specification of procedure mkdir [2020-07-17 13:26:34,964 INFO L130 BoogieDeclarations]: Found specification of procedure mkdirat [2020-07-17 13:26:34,964 INFO L130 BoogieDeclarations]: Found specification of procedure mknod [2020-07-17 13:26:34,964 INFO L130 BoogieDeclarations]: Found specification of procedure mknodat [2020-07-17 13:26:34,964 INFO L130 BoogieDeclarations]: Found specification of procedure mkfifo [2020-07-17 13:26:34,964 INFO L130 BoogieDeclarations]: Found specification of procedure mkfifoat [2020-07-17 13:26:34,964 INFO L130 BoogieDeclarations]: Found specification of procedure utimensat [2020-07-17 13:26:34,965 INFO L130 BoogieDeclarations]: Found specification of procedure futimens [2020-07-17 13:26:34,965 INFO L130 BoogieDeclarations]: Found specification of procedure __fxstat [2020-07-17 13:26:34,965 INFO L130 BoogieDeclarations]: Found specification of procedure __xstat [2020-07-17 13:26:34,965 INFO L130 BoogieDeclarations]: Found specification of procedure __lxstat [2020-07-17 13:26:34,965 INFO L130 BoogieDeclarations]: Found specification of procedure __fxstatat [2020-07-17 13:26:34,965 INFO L130 BoogieDeclarations]: Found specification of procedure __xmknod [2020-07-17 13:26:34,966 INFO L130 BoogieDeclarations]: Found specification of procedure __xmknodat [2020-07-17 13:26:34,966 INFO L130 BoogieDeclarations]: Found specification of procedure fcntl [2020-07-17 13:26:34,966 INFO L130 BoogieDeclarations]: Found specification of procedure open [2020-07-17 13:26:34,966 INFO L130 BoogieDeclarations]: Found specification of procedure openat [2020-07-17 13:26:34,966 INFO L130 BoogieDeclarations]: Found specification of procedure openat64 [2020-07-17 13:26:34,966 INFO L130 BoogieDeclarations]: Found specification of procedure creat [2020-07-17 13:26:34,966 INFO L130 BoogieDeclarations]: Found specification of procedure lockf [2020-07-17 13:26:34,967 INFO L130 BoogieDeclarations]: Found specification of procedure posix_fadvise [2020-07-17 13:26:34,967 INFO L130 BoogieDeclarations]: Found specification of procedure posix_fallocate [2020-07-17 13:26:34,967 INFO L130 BoogieDeclarations]: Found specification of procedure read [2020-07-17 13:26:34,967 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_int [2020-07-17 13:26:34,967 INFO L130 BoogieDeclarations]: Found specification of procedure l_read [2020-07-17 13:26:34,967 INFO L130 BoogieDeclarations]: Found specification of procedure l_open [2020-07-17 13:26:34,967 INFO L130 BoogieDeclarations]: Found specification of procedure main [2020-07-17 13:26:34,968 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2020-07-17 13:26:34,968 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2020-07-17 13:26:34,968 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2020-07-17 13:26:34,968 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2020-07-17 13:26:34,968 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2020-07-17 13:26:35,448 INFO L290 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2020-07-17 13:26:35,448 INFO L295 CfgBuilder]: Removed 0 assume(true) statements. [2020-07-17 13:26:35,456 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 17.07 01:26:35 BoogieIcfgContainer [2020-07-17 13:26:35,457 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2020-07-17 13:26:35,458 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2020-07-17 13:26:35,458 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2020-07-17 13:26:35,461 INFO L275 PluginConnector]: TraceAbstraction initialized [2020-07-17 13:26:35,463 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 17.07 01:26:34" (1/3) ... [2020-07-17 13:26:35,465 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@5b9b1282 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 17.07 01:26:35, skipping insertion in model container [2020-07-17 13:26:35,465 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.07 01:26:34" (2/3) ... [2020-07-17 13:26:35,466 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@5b9b1282 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 17.07 01:26:35, skipping insertion in model container [2020-07-17 13:26:35,466 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 17.07 01:26:35" (3/3) ... [2020-07-17 13:26:35,468 INFO L109 eAbstractionObserver]: Analyzing ICFG fo_test.i [2020-07-17 13:26:35,478 INFO L157 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:AcceleratedInterpolation Determinization: PREDICATE_ABSTRACTION [2020-07-17 13:26:35,485 INFO L169 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2020-07-17 13:26:35,499 INFO L251 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2020-07-17 13:26:35,520 INFO L375 AbstractCegarLoop]: Interprodecural is true [2020-07-17 13:26:35,521 INFO L376 AbstractCegarLoop]: Hoare is true [2020-07-17 13:26:35,521 INFO L377 AbstractCegarLoop]: Compute interpolants for AcceleratedInterpolation [2020-07-17 13:26:35,521 INFO L378 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2020-07-17 13:26:35,521 INFO L379 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2020-07-17 13:26:35,521 INFO L380 AbstractCegarLoop]: Difference is false [2020-07-17 13:26:35,521 INFO L381 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2020-07-17 13:26:35,522 INFO L385 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2020-07-17 13:26:35,534 INFO L276 IsEmpty]: Start isEmpty. Operand 49 states. [2020-07-17 13:26:35,543 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 33 [2020-07-17 13:26:35,544 INFO L414 BasicCegarLoop]: Found error trace [2020-07-17 13:26:35,544 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-07-17 13:26:35,545 INFO L427 AbstractCegarLoop]: === Iteration 1 === [__blast_assertErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-07-17 13:26:35,550 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-07-17 13:26:35,550 INFO L82 PathProgramCache]: Analyzing trace with hash 86369829, now seen corresponding path program 1 times [2020-07-17 13:26:35,558 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-07-17 13:26:35,558 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1887358405] [2020-07-17 13:26:35,559 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-07-17 13:26:35,688 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-07-17 13:26:35,721 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-07-17 13:26:35,761 INFO L192 leratedInterpolation]: Finished Analysing Program using PRECISE loop Acceleration [2020-07-17 13:26:35,763 INFO L174 FreeRefinementEngine]: Strategy FIXED_PREFERENCES found a feasible trace [2020-07-17 13:26:35,764 INFO L520 BasicCegarLoop]: Counterexample might be feasible [2020-07-17 13:26:35,765 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2020-07-17 13:26:35,783 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 17.07 01:26:35 BoogieIcfgContainer [2020-07-17 13:26:35,783 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2020-07-17 13:26:35,786 INFO L168 Benchmark]: Toolchain (without parser) took 1654.05 ms. Allocated memory was 135.3 MB in the beginning and 199.8 MB in the end (delta: 64.5 MB). Free memory was 99.2 MB in the beginning and 96.5 MB in the end (delta: 2.6 MB). Peak memory consumption was 67.1 MB. Max. memory is 7.1 GB. [2020-07-17 13:26:35,787 INFO L168 Benchmark]: CDTParser took 0.22 ms. Allocated memory is still 135.3 MB. Free memory was 118.7 MB in the beginning and 118.5 MB in the end (delta: 209.9 kB). Peak memory consumption was 209.9 kB. Max. memory is 7.1 GB. [2020-07-17 13:26:35,788 INFO L168 Benchmark]: CACSL2BoogieTranslator took 681.48 ms. Allocated memory was 135.3 MB in the beginning and 199.8 MB in the end (delta: 64.5 MB). Free memory was 98.8 MB in the beginning and 162.7 MB in the end (delta: -64.0 MB). Peak memory consumption was 28.3 MB. Max. memory is 7.1 GB. [2020-07-17 13:26:35,789 INFO L168 Benchmark]: Boogie Preprocessor took 52.72 ms. Allocated memory is still 199.8 MB. Free memory was 162.7 MB in the beginning and 160.6 MB in the end (delta: 2.1 MB). Peak memory consumption was 2.1 MB. Max. memory is 7.1 GB. [2020-07-17 13:26:35,790 INFO L168 Benchmark]: RCFGBuilder took 588.68 ms. Allocated memory is still 199.8 MB. Free memory was 160.6 MB in the beginning and 112.8 MB in the end (delta: 47.8 MB). Peak memory consumption was 47.8 MB. Max. memory is 7.1 GB. [2020-07-17 13:26:35,791 INFO L168 Benchmark]: TraceAbstraction took 325.40 ms. Allocated memory is still 199.8 MB. Free memory was 112.8 MB in the beginning and 96.5 MB in the end (delta: 16.3 MB). Peak memory consumption was 16.3 MB. Max. memory is 7.1 GB. [2020-07-17 13:26:35,795 INFO L336 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 135.3 MB. Free memory was 118.7 MB in the beginning and 118.5 MB in the end (delta: 209.9 kB). Peak memory consumption was 209.9 kB. Max. memory is 7.1 GB. * CACSL2BoogieTranslator took 681.48 ms. Allocated memory was 135.3 MB in the beginning and 199.8 MB in the end (delta: 64.5 MB). Free memory was 98.8 MB in the beginning and 162.7 MB in the end (delta: -64.0 MB). Peak memory consumption was 28.3 MB. Max. memory is 7.1 GB. * Boogie Preprocessor took 52.72 ms. Allocated memory is still 199.8 MB. Free memory was 162.7 MB in the beginning and 160.6 MB in the end (delta: 2.1 MB). Peak memory consumption was 2.1 MB. Max. memory is 7.1 GB. * RCFGBuilder took 588.68 ms. Allocated memory is still 199.8 MB. Free memory was 160.6 MB in the beginning and 112.8 MB in the end (delta: 47.8 MB). Peak memory consumption was 47.8 MB. Max. memory is 7.1 GB. * TraceAbstraction took 325.40 ms. Allocated memory is still 199.8 MB. Free memory was 112.8 MB in the beginning and 96.5 MB in the end (delta: 16.3 MB). Peak memory consumption was 16.3 MB. Max. memory is 7.1 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - UnprovableResult [Line: 960]: Unable to prove that call of __VERIFIER_error() unreachable Unable to prove that call of __VERIFIER_error() unreachable Reason: overapproximation of large string literal at line 1158. Possible FailurePath: [L1152] int globalState = 0; [L1158] CALL, EXPR l_open("unknown",00) [L1170] int fd = open(file,flags); [L1171] COND FALSE !(fd>0) [L1172] return fd; [L1158] RET, EXPR l_open("unknown",00) [L1158] int file = l_open("unknown",00); [L1159] void* cbuf = (void*) malloc(sizeof(char)*100); [L1160] CALL l_read(file,cbuf,99) [L1165] (globalState == 1) ? (0) : __blast_assert () [L1165] CALL __blast_assert () [L960] __VERIFIER_error() - StatisticsResult: Ultimate Automizer benchmark data CFG has 7 procedures, 56 locations, 1 error locations. Started 1 CEGAR loops. VerificationResult: UNSAFE, OverallTime: 0.2s, OverallIterations: 1, TraceHistogramMax: 1, AutomataDifference: 0.0s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: No data available, PredicateUnifierStatistics: No data available, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=49occurred 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: No data available, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: No data available, INVARIANT_SYNTHESIS: No data available, INTERPOLANT_CONSOLIDATION: No data available, ABSTRACT_INTERPRETATION: No data available, PDR: No data available, ACCELERATED_INTERPOLATION: No data available, SIFA: No data available, ReuseStatistics: No data available RESULT: Ultimate could not prove your program: unable to determine feasibility of some traces Received shutdown request...