java -Xmx6000000000 -jar ./plugins/org.eclipse.equinox.launcher_1.3.100.v20150511-1540.jar -data ./data --generate-csv --csv-dir ../../../releaseScripts/default/UAutomizer-linux/csv --cacsl2boogietranslator.bitprecise.bitfields false -tc ../../../trunk/examples/toolchains/AutomizerC.xml -s ../../../trunk/examples/settings/cade18-smtinterpol/svcomp-DerefFreeMemtrack-32bit-Automizer_SmtInterpol_NoArray.epf -i ../../../trunk/examples/svcomp/list-ext-properties/960521-1_1_false-valid-deref.i -------------------------------------------------------------------------------- This is Ultimate 0.1.23-408c70d-m [2018-04-13 07:40:35,165 INFO L170 SettingsManager]: Resetting all preferences to default values... [2018-04-13 07:40:35,166 INFO L174 SettingsManager]: Resetting UltimateCore preferences to default values [2018-04-13 07:40:35,177 INFO L177 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2018-04-13 07:40:35,177 INFO L174 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2018-04-13 07:40:35,178 INFO L174 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2018-04-13 07:40:35,179 INFO L174 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2018-04-13 07:40:35,180 INFO L174 SettingsManager]: Resetting LassoRanker preferences to default values [2018-04-13 07:40:35,181 INFO L174 SettingsManager]: Resetting Reaching Definitions preferences to default values [2018-04-13 07:40:35,182 INFO L174 SettingsManager]: Resetting SyntaxChecker preferences to default values [2018-04-13 07:40:35,183 INFO L177 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2018-04-13 07:40:35,183 INFO L174 SettingsManager]: Resetting LTL2Aut preferences to default values [2018-04-13 07:40:35,184 INFO L174 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2018-04-13 07:40:35,185 INFO L174 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2018-04-13 07:40:35,185 INFO L174 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2018-04-13 07:40:35,187 INFO L174 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2018-04-13 07:40:35,189 INFO L174 SettingsManager]: Resetting CodeCheck preferences to default values [2018-04-13 07:40:35,190 INFO L174 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2018-04-13 07:40:35,191 INFO L174 SettingsManager]: Resetting RCFGBuilder preferences to default values [2018-04-13 07:40:35,192 INFO L174 SettingsManager]: Resetting TraceAbstraction preferences to default values [2018-04-13 07:40:35,194 INFO L177 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2018-04-13 07:40:35,194 INFO L177 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2018-04-13 07:40:35,194 INFO L174 SettingsManager]: Resetting IcfgTransformer preferences to default values [2018-04-13 07:40:35,195 INFO L174 SettingsManager]: Resetting Boogie Printer preferences to default values [2018-04-13 07:40:35,196 INFO L174 SettingsManager]: Resetting Witness Printer preferences to default values [2018-04-13 07:40:35,197 INFO L177 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2018-04-13 07:40:35,197 INFO L174 SettingsManager]: Resetting CDTParser preferences to default values [2018-04-13 07:40:35,197 INFO L174 SettingsManager]: Resetting PEA to Boogie preferences to default values [2018-04-13 07:40:35,198 INFO L177 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2018-04-13 07:40:35,198 INFO L174 SettingsManager]: Resetting Witness Parser preferences to default values [2018-04-13 07:40:35,199 INFO L181 SettingsManager]: Finished resetting all preferences to default values... [2018-04-13 07:40:35,199 INFO L98 SettingsManager]: Beginning loading settings from /home/ultimate/work/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/settings/cade18-smtinterpol/svcomp-DerefFreeMemtrack-32bit-Automizer_SmtInterpol_NoArray.epf [2018-04-13 07:40:35,209 INFO L110 SettingsManager]: Loading preferences was successful [2018-04-13 07:40:35,209 INFO L112 SettingsManager]: Preferences different from defaults after loading the file: [2018-04-13 07:40:35,210 INFO L131 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2018-04-13 07:40:35,211 INFO L133 SettingsManager]: * Create parallel compositions if possible=false [2018-04-13 07:40:35,211 INFO L133 SettingsManager]: * Use SBE=true [2018-04-13 07:40:35,211 INFO L131 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2018-04-13 07:40:35,211 INFO L133 SettingsManager]: * sizeof long=4 [2018-04-13 07:40:35,211 INFO L133 SettingsManager]: * Check unreachability of error function in SV-COMP mode=false [2018-04-13 07:40:35,211 INFO L133 SettingsManager]: * Overapproximate operations on floating types=true [2018-04-13 07:40:35,211 INFO L133 SettingsManager]: * sizeof POINTER=4 [2018-04-13 07:40:35,212 INFO L133 SettingsManager]: * Check division by zero=IGNORE [2018-04-13 07:40:35,212 INFO L133 SettingsManager]: * Check for the main procedure if all allocated memory was freed=true [2018-04-13 07:40:35,212 INFO L133 SettingsManager]: * Bitprecise bitfields=true [2018-04-13 07:40:35,212 INFO L133 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2018-04-13 07:40:35,212 INFO L133 SettingsManager]: * sizeof long double=12 [2018-04-13 07:40:35,212 INFO L131 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2018-04-13 07:40:35,212 INFO L133 SettingsManager]: * Size of a code block=SequenceOfStatements [2018-04-13 07:40:35,213 INFO L133 SettingsManager]: * To the following directory=./dump/ [2018-04-13 07:40:35,213 INFO L133 SettingsManager]: * SMT solver=External_DefaultMode [2018-04-13 07:40:35,213 INFO L133 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2018-04-13 07:40:35,213 INFO L131 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2018-04-13 07:40:35,213 INFO L133 SettingsManager]: * Interpolant automaton=TWOTRACK [2018-04-13 07:40:35,213 INFO L133 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2018-04-13 07:40:35,213 INFO L133 SettingsManager]: * Trace refinement strategy=SMTINTERPOL Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Bitprecise bitfields -> false [2018-04-13 07:40:35,243 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2018-04-13 07:40:35,252 INFO L266 ainManager$Toolchain]: [Toolchain 1]: Parser(s) successfully (re)initialized [2018-04-13 07:40:35,256 INFO L222 ainManager$Toolchain]: [Toolchain 1]: Toolchain data selected. [2018-04-13 07:40:35,257 INFO L271 PluginConnector]: Initializing CDTParser... [2018-04-13 07:40:35,257 INFO L276 PluginConnector]: CDTParser initialized [2018-04-13 07:40:35,258 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /home/ultimate/work/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/list-ext-properties/960521-1_1_false-valid-deref.i [2018-04-13 07:40:35,548 INFO L225 CDTParser]: Created temporary CDT project at /home/ultimate/work/ultimate/releaseScripts/default/UAutomizer-linux/data/FLAG6300e7cc1 [2018-04-13 07:40:35,709 INFO L287 CDTParser]: IsIndexed: true [2018-04-13 07:40:35,710 INFO L288 CDTParser]: Found 1 translation units. [2018-04-13 07:40:35,710 INFO L168 CDTParser]: Scanning 960521-1_1_false-valid-deref.i [2018-04-13 07:40:35,717 INFO L210 ultiparseSymbolTable]: Include resolver: [2018-04-13 07:40:35,717 INFO L215 ultiparseSymbolTable]: [2018-04-13 07:40:35,717 INFO L218 ultiparseSymbolTable]: Function table: [2018-04-13 07:40:35,717 INFO L221 ultiparseSymbolTable]: Function definition of __U_MULTI_f___________false_valid_deref_i__foo ('foo') in 960521-1_1_false-valid-deref.i [2018-04-13 07:40:35,718 INFO L221 ultiparseSymbolTable]: Function definition of null ('main') in 960521-1_1_false-valid-deref.i [2018-04-13 07:40:35,718 INFO L227 ultiparseSymbolTable]: Global variable table: [2018-04-13 07:40:35,718 INFO L230 ultiparseSymbolTable]: Global variable declaration of __U_MULTI_f___________false_valid_deref_i____uint8_t in 960521-1_1_false-valid-deref.i [2018-04-13 07:40:35,718 INFO L230 ultiparseSymbolTable]: Global variable declaration of __U_MULTI_f___________false_valid_deref_i____key_t in 960521-1_1_false-valid-deref.i [2018-04-13 07:40:35,718 INFO L230 ultiparseSymbolTable]: Global variable declaration of __U_MULTI_f___________false_valid_deref_i____clockid_t in 960521-1_1_false-valid-deref.i [2018-04-13 07:40:35,718 INFO L230 ultiparseSymbolTable]: Global variable declaration of __U_MULTI_f___________false_valid_deref_i____daddr_t in 960521-1_1_false-valid-deref.i [2018-04-13 07:40:35,718 INFO L230 ultiparseSymbolTable]: Global variable declaration of __U_MULTI_f___________false_valid_deref_i____clock_t in 960521-1_1_false-valid-deref.i [2018-04-13 07:40:35,718 INFO L230 ultiparseSymbolTable]: Global variable declaration of __U_MULTI_f___________false_valid_deref_i__quad_t in 960521-1_1_false-valid-deref.i [2018-04-13 07:40:35,718 INFO L230 ultiparseSymbolTable]: Global variable declaration of __U_MULTI_f___________false_valid_deref_i__fsid_t in 960521-1_1_false-valid-deref.i [2018-04-13 07:40:35,718 INFO L230 ultiparseSymbolTable]: Global variable declaration of __U_MULTI_f___________false_valid_deref_i__u_int16_t in 960521-1_1_false-valid-deref.i [2018-04-13 07:40:35,719 INFO L230 ultiparseSymbolTable]: Global variable declaration of __U_MULTI_f___________false_valid_deref_i__u_int8_t in 960521-1_1_false-valid-deref.i [2018-04-13 07:40:35,719 INFO L230 ultiparseSymbolTable]: Global variable declaration of __U_MULTI_f___________false_valid_deref_i__clockid_t in 960521-1_1_false-valid-deref.i [2018-04-13 07:40:35,719 INFO L230 ultiparseSymbolTable]: Global variable declaration of __U_MULTI_f___________false_valid_deref_i__loff_t in 960521-1_1_false-valid-deref.i [2018-04-13 07:40:35,719 INFO L230 ultiparseSymbolTable]: Global variable declaration of __U_MULTI_f___________false_valid_deref_i____u_int in 960521-1_1_false-valid-deref.i [2018-04-13 07:40:35,719 INFO L230 ultiparseSymbolTable]: Global variable declaration of __U_MULTI_f___________false_valid_deref_i__uint in 960521-1_1_false-valid-deref.i [2018-04-13 07:40:35,719 INFO L230 ultiparseSymbolTable]: Global variable declaration of __U_MULTI_f___________false_valid_deref_i__suseconds_t in 960521-1_1_false-valid-deref.i [2018-04-13 07:40:35,719 INFO L230 ultiparseSymbolTable]: Global variable declaration of __U_MULTI_f___________false_valid_deref_i__fd_mask in 960521-1_1_false-valid-deref.i [2018-04-13 07:40:35,719 INFO L230 ultiparseSymbolTable]: Global variable declaration of __U_MULTI_f___________false_valid_deref_i__wchar_t in 960521-1_1_false-valid-deref.i [2018-04-13 07:40:35,719 INFO L230 ultiparseSymbolTable]: Global variable declaration of __U_MULTI_f___________false_valid_deref_i____useconds_t in 960521-1_1_false-valid-deref.i [2018-04-13 07:40:35,719 INFO L230 ultiparseSymbolTable]: Global variable declaration of __U_MULTI_f___________false_valid_deref_i____ino64_t in 960521-1_1_false-valid-deref.i [2018-04-13 07:40:35,719 INFO L230 ultiparseSymbolTable]: Global variable declaration of __U_MULTI_f___________false_valid_deref_i__u_long in 960521-1_1_false-valid-deref.i [2018-04-13 07:40:35,720 INFO L230 ultiparseSymbolTable]: Global variable declaration of __U_MULTI_f___________false_valid_deref_i____uid_t in 960521-1_1_false-valid-deref.i [2018-04-13 07:40:35,720 INFO L230 ultiparseSymbolTable]: Global variable declaration of __U_MULTI_f___________false_valid_deref_i____ino_t in 960521-1_1_false-valid-deref.i [2018-04-13 07:40:35,720 INFO L230 ultiparseSymbolTable]: Global variable declaration of __U_MULTI_f___________false_valid_deref_i____fsid_t in 960521-1_1_false-valid-deref.i [2018-04-13 07:40:35,720 INFO L230 ultiparseSymbolTable]: Global variable declaration of __U_MULTI_f___________false_valid_deref_i__nlink_t in 960521-1_1_false-valid-deref.i [2018-04-13 07:40:35,720 INFO L230 ultiparseSymbolTable]: Global variable declaration of __U_MULTI_f___________false_valid_deref_i____sigset_t in 960521-1_1_false-valid-deref.i [2018-04-13 07:40:35,720 INFO L230 ultiparseSymbolTable]: Global variable declaration of __U_MULTI_f___________false_valid_deref_i__pthread_cond_t in 960521-1_1_false-valid-deref.i [2018-04-13 07:40:35,720 INFO L230 ultiparseSymbolTable]: Global variable declaration of __U_MULTI_f___________false_valid_deref_i____blkcnt_t in 960521-1_1_false-valid-deref.i [2018-04-13 07:40:35,720 INFO L230 ultiparseSymbolTable]: Global variable declaration of __U_MULTI_f___________false_valid_deref_i__pthread_once_t in 960521-1_1_false-valid-deref.i [2018-04-13 07:40:35,720 INFO L230 ultiparseSymbolTable]: Global variable declaration of __U_MULTI_f___________false_valid_deref_i____int16_t in 960521-1_1_false-valid-deref.i [2018-04-13 07:40:35,720 INFO L230 ultiparseSymbolTable]: Global variable declaration of __U_MULTI_f___________false_valid_deref_i__dev_t in 960521-1_1_false-valid-deref.i [2018-04-13 07:40:35,720 INFO L230 ultiparseSymbolTable]: Global variable declaration of __U_MULTI_f___________false_valid_deref_i__pthread_spinlock_t in 960521-1_1_false-valid-deref.i [2018-04-13 07:40:35,721 INFO L230 ultiparseSymbolTable]: Global variable declaration of __U_MULTI_f___________false_valid_deref_i__id_t in 960521-1_1_false-valid-deref.i [2018-04-13 07:40:35,721 INFO L230 ultiparseSymbolTable]: Global variable declaration of __U_MULTI_f___________false_valid_deref_i____u_long in 960521-1_1_false-valid-deref.i [2018-04-13 07:40:35,721 INFO L230 ultiparseSymbolTable]: Global variable declaration of __U_MULTI_f___________false_valid_deref_i____nlink_t in 960521-1_1_false-valid-deref.i [2018-04-13 07:40:35,721 INFO L230 ultiparseSymbolTable]: Global variable declaration of __U_MULTI_f___________false_valid_deref_i__timer_t in 960521-1_1_false-valid-deref.i [2018-04-13 07:40:35,721 INFO L230 ultiparseSymbolTable]: Global variable declaration of __U_MULTI_f___________false_valid_deref_i__u_char in 960521-1_1_false-valid-deref.i [2018-04-13 07:40:35,721 INFO L230 ultiparseSymbolTable]: Global variable declaration of __U_MULTI_f___________false_valid_deref_i__off_t in 960521-1_1_false-valid-deref.i [2018-04-13 07:40:35,721 INFO L230 ultiparseSymbolTable]: Global variable declaration of __U_MULTI_f___________false_valid_deref_i__u_int32_t in 960521-1_1_false-valid-deref.i [2018-04-13 07:40:35,721 INFO L230 ultiparseSymbolTable]: Global variable declaration of __U_MULTI_f___________false_valid_deref_i__blkcnt_t in 960521-1_1_false-valid-deref.i [2018-04-13 07:40:35,721 INFO L230 ultiparseSymbolTable]: Global variable declaration of __U_MULTI_f___________false_valid_deref_i__ssize_t in 960521-1_1_false-valid-deref.i [2018-04-13 07:40:35,721 INFO L230 ultiparseSymbolTable]: Global variable declaration of __U_MULTI_f___________false_valid_deref_i__pthread_rwlockattr_t in 960521-1_1_false-valid-deref.i [2018-04-13 07:40:35,722 INFO L230 ultiparseSymbolTable]: Global variable declaration of __U_MULTI_f___________false_valid_deref_i____socklen_t in 960521-1_1_false-valid-deref.i [2018-04-13 07:40:35,722 INFO L230 ultiparseSymbolTable]: Global variable declaration of __U_MULTI_f___________false_valid_deref_i____pthread_list_t in 960521-1_1_false-valid-deref.i [2018-04-13 07:40:35,722 INFO L230 ultiparseSymbolTable]: Global variable declaration of __U_MULTI_f___________false_valid_deref_i____off_t in 960521-1_1_false-valid-deref.i [2018-04-13 07:40:35,722 INFO L230 ultiparseSymbolTable]: Global variable declaration of __U_MULTI_f___________false_valid_deref_i____blkcnt64_t in 960521-1_1_false-valid-deref.i [2018-04-13 07:40:35,722 INFO L230 ultiparseSymbolTable]: Global variable declaration of __U_MULTI_f___________false_valid_deref_i__fsfilcnt_t in 960521-1_1_false-valid-deref.i [2018-04-13 07:40:35,722 INFO L230 ultiparseSymbolTable]: Global variable declaration of __U_MULTI_f___________false_valid_deref_i____uint64_t in 960521-1_1_false-valid-deref.i [2018-04-13 07:40:35,722 INFO L230 ultiparseSymbolTable]: Global variable declaration of __U_MULTI_f___________false_valid_deref_i__int32_t in 960521-1_1_false-valid-deref.i [2018-04-13 07:40:35,722 INFO L230 ultiparseSymbolTable]: Global variable declaration of __U_MULTI_f___________false_valid_deref_i__pthread_attr_t in 960521-1_1_false-valid-deref.i [2018-04-13 07:40:35,722 INFO L230 ultiparseSymbolTable]: Global variable declaration of __U_MULTI_f___________false_valid_deref_i__pthread_barrier_t in 960521-1_1_false-valid-deref.i [2018-04-13 07:40:35,722 INFO L230 ultiparseSymbolTable]: Global variable declaration of __U_MULTI_f___________false_valid_deref_i____u_quad_t in 960521-1_1_false-valid-deref.i [2018-04-13 07:40:35,722 INFO L230 ultiparseSymbolTable]: Global variable declaration of __U_MULTI_f___________false_valid_deref_i____pid_t in 960521-1_1_false-valid-deref.i [2018-04-13 07:40:35,722 INFO L230 ultiparseSymbolTable]: Global variable declaration of __U_MULTI_f___________false_valid_deref_i____sig_atomic_t in 960521-1_1_false-valid-deref.i [2018-04-13 07:40:35,722 INFO L230 ultiparseSymbolTable]: Global variable declaration of __U_MULTI_f___________false_valid_deref_i____quad_t in 960521-1_1_false-valid-deref.i [2018-04-13 07:40:35,722 INFO L230 ultiparseSymbolTable]: Global variable declaration of __U_MULTI_f___________false_valid_deref_i____fd_mask in 960521-1_1_false-valid-deref.i [2018-04-13 07:40:35,722 INFO L230 ultiparseSymbolTable]: Global variable declaration of __U_MULTI_f___________false_valid_deref_i____ssize_t in 960521-1_1_false-valid-deref.i [2018-04-13 07:40:35,722 INFO L230 ultiparseSymbolTable]: Global variable declaration of __U_MULTI_f___________false_valid_deref_i__pthread_t in 960521-1_1_false-valid-deref.i [2018-04-13 07:40:35,722 INFO L230 ultiparseSymbolTable]: Global variable declaration of __U_MULTI_f___________false_valid_deref_i____u_char in 960521-1_1_false-valid-deref.i [2018-04-13 07:40:35,723 INFO L230 ultiparseSymbolTable]: Global variable declaration of __U_MULTI_f___________false_valid_deref_i____off64_t in 960521-1_1_false-valid-deref.i [2018-04-13 07:40:35,723 INFO L230 ultiparseSymbolTable]: Global variable declaration of __U_MULTI_f___________false_valid_deref_i____fsblkcnt64_t in 960521-1_1_false-valid-deref.i [2018-04-13 07:40:35,723 INFO L230 ultiparseSymbolTable]: Global variable declaration of __U_MULTI_f___________false_valid_deref_i____id_t in 960521-1_1_false-valid-deref.i [2018-04-13 07:40:35,723 INFO L230 ultiparseSymbolTable]: Global variable declaration of __U_MULTI_f___________false_valid_deref_i__pthread_mutexattr_t in 960521-1_1_false-valid-deref.i [2018-04-13 07:40:35,723 INFO L230 ultiparseSymbolTable]: Global variable declaration of __U_MULTI_f___________false_valid_deref_i__u_int in 960521-1_1_false-valid-deref.i [2018-04-13 07:40:35,723 INFO L230 ultiparseSymbolTable]: Global variable declaration of __U_MULTI_f___________false_valid_deref_i____gid_t in 960521-1_1_false-valid-deref.i [2018-04-13 07:40:35,723 INFO L230 ultiparseSymbolTable]: Global variable declaration of __U_MULTI_f___________false_valid_deref_i____timer_t in 960521-1_1_false-valid-deref.i [2018-04-13 07:40:35,723 INFO L230 ultiparseSymbolTable]: Global variable declaration of __U_MULTI_f___________false_valid_deref_i__fsblkcnt_t in 960521-1_1_false-valid-deref.i [2018-04-13 07:40:35,723 INFO L230 ultiparseSymbolTable]: Global variable declaration of __U_MULTI_f___________false_valid_deref_i__div_t in 960521-1_1_false-valid-deref.i [2018-04-13 07:40:35,723 INFO L230 ultiparseSymbolTable]: Global variable declaration of __U_MULTI_f___________false_valid_deref_i____int32_t in 960521-1_1_false-valid-deref.i [2018-04-13 07:40:35,723 INFO L230 ultiparseSymbolTable]: Global variable declaration of __U_MULTI_f___________false_valid_deref_i__caddr_t in 960521-1_1_false-valid-deref.i [2018-04-13 07:40:35,723 INFO L230 ultiparseSymbolTable]: Global variable declaration of __U_MULTI_f___________false_valid_deref_i____suseconds_t in 960521-1_1_false-valid-deref.i [2018-04-13 07:40:35,723 INFO L230 ultiparseSymbolTable]: Global variable declaration of __U_MULTI_f___________false_valid_deref_i__time_t in 960521-1_1_false-valid-deref.i [2018-04-13 07:40:35,723 INFO L230 ultiparseSymbolTable]: Global variable declaration of __U_MULTI_f___________false_valid_deref_i____u_short in 960521-1_1_false-valid-deref.i [2018-04-13 07:40:35,723 INFO L230 ultiparseSymbolTable]: Global variable declaration of __U_MULTI_f___________false_valid_deref_i__pthread_mutex_t in 960521-1_1_false-valid-deref.i [2018-04-13 07:40:35,723 INFO L230 ultiparseSymbolTable]: Global variable declaration of __U_MULTI_f___________false_valid_deref_i__lldiv_t in 960521-1_1_false-valid-deref.i [2018-04-13 07:40:35,723 INFO L230 ultiparseSymbolTable]: Global variable declaration of __U_MULTI_f___________false_valid_deref_i__key_t in 960521-1_1_false-valid-deref.i [2018-04-13 07:40:35,723 INFO L230 ultiparseSymbolTable]: Global variable declaration of __U_MULTI_f___________false_valid_deref_i__uid_t in 960521-1_1_false-valid-deref.i [2018-04-13 07:40:35,723 INFO L230 ultiparseSymbolTable]: Global variable declaration of __U_MULTI_f___________false_valid_deref_i__mode_t in 960521-1_1_false-valid-deref.i [2018-04-13 07:40:35,724 INFO L230 ultiparseSymbolTable]: Global variable declaration of __U_MULTI_f___________false_valid_deref_i__fd_set in 960521-1_1_false-valid-deref.i [2018-04-13 07:40:35,724 INFO L230 ultiparseSymbolTable]: Global variable declaration of __U_MULTI_f___________false_valid_deref_i____rlim_t in 960521-1_1_false-valid-deref.i [2018-04-13 07:40:35,724 INFO L230 ultiparseSymbolTable]: Global variable declaration of __U_MULTI_f___________false_valid_deref_i____intptr_t in 960521-1_1_false-valid-deref.i [2018-04-13 07:40:35,724 INFO L230 ultiparseSymbolTable]: Global variable declaration of __U_MULTI_f___________false_valid_deref_i__int16_t in 960521-1_1_false-valid-deref.i [2018-04-13 07:40:35,724 INFO L230 ultiparseSymbolTable]: Global variable declaration of __U_MULTI_f___________false_valid_deref_i____fsblkcnt_t in 960521-1_1_false-valid-deref.i [2018-04-13 07:40:35,724 INFO L230 ultiparseSymbolTable]: Global variable declaration of __U_MULTI_f___________false_valid_deref_i__size_t in 960521-1_1_false-valid-deref.i [2018-04-13 07:40:35,724 INFO L230 ultiparseSymbolTable]: Global variable declaration of __U_MULTI_f___________false_valid_deref_i__n in 960521-1_1_false-valid-deref.i [2018-04-13 07:40:35,724 INFO L230 ultiparseSymbolTable]: Global variable declaration of __U_MULTI_f___________false_valid_deref_i__pthread_key_t in 960521-1_1_false-valid-deref.i [2018-04-13 07:40:35,724 INFO L230 ultiparseSymbolTable]: Global variable declaration of __U_MULTI_f___________false_valid_deref_i__pthread_rwlock_t in 960521-1_1_false-valid-deref.i [2018-04-13 07:40:35,724 INFO L230 ultiparseSymbolTable]: Global variable declaration of __U_MULTI_f___________false_valid_deref_i____uint32_t in 960521-1_1_false-valid-deref.i [2018-04-13 07:40:35,724 INFO L230 ultiparseSymbolTable]: Global variable declaration of __U_MULTI_f___________false_valid_deref_i____mode_t in 960521-1_1_false-valid-deref.i [2018-04-13 07:40:35,724 INFO L230 ultiparseSymbolTable]: Global variable declaration of __U_MULTI_f___________false_valid_deref_i__sigset_t in 960521-1_1_false-valid-deref.i [2018-04-13 07:40:35,724 INFO L230 ultiparseSymbolTable]: Global variable declaration of __U_MULTI_f___________false_valid_deref_i__blksize_t in 960521-1_1_false-valid-deref.i [2018-04-13 07:40:35,724 INFO L230 ultiparseSymbolTable]: Global variable declaration of __U_MULTI_f___________false_valid_deref_i__ulong in 960521-1_1_false-valid-deref.i [2018-04-13 07:40:35,724 INFO L230 ultiparseSymbolTable]: Global variable declaration of __U_MULTI_f___________false_valid_deref_i__gid_t in 960521-1_1_false-valid-deref.i [2018-04-13 07:40:35,724 INFO L230 ultiparseSymbolTable]: Global variable declaration of __U_MULTI_f___________false_valid_deref_i____int8_t in 960521-1_1_false-valid-deref.i [2018-04-13 07:40:35,725 INFO L230 ultiparseSymbolTable]: Global variable declaration of __U_MULTI_f___________false_valid_deref_i__u_short in 960521-1_1_false-valid-deref.i [2018-04-13 07:40:35,725 INFO L230 ultiparseSymbolTable]: Global variable declaration of __U_MULTI_f___________false_valid_deref_i__b in 960521-1_1_false-valid-deref.i [2018-04-13 07:40:35,725 INFO L230 ultiparseSymbolTable]: Global variable declaration of __U_MULTI_f___________false_valid_deref_i__a in 960521-1_1_false-valid-deref.i [2018-04-13 07:40:35,725 INFO L230 ultiparseSymbolTable]: Global variable declaration of __U_MULTI_f___________false_valid_deref_i__ino_t in 960521-1_1_false-valid-deref.i [2018-04-13 07:40:35,725 INFO L230 ultiparseSymbolTable]: Global variable declaration of __U_MULTI_f___________false_valid_deref_i__pid_t in 960521-1_1_false-valid-deref.i [2018-04-13 07:40:35,725 INFO L230 ultiparseSymbolTable]: Global variable declaration of __U_MULTI_f___________false_valid_deref_i__clock_t in 960521-1_1_false-valid-deref.i [2018-04-13 07:40:35,725 INFO L230 ultiparseSymbolTable]: Global variable declaration of __U_MULTI_f___________false_valid_deref_i__ldiv_t in 960521-1_1_false-valid-deref.i [2018-04-13 07:40:35,725 INFO L230 ultiparseSymbolTable]: Global variable declaration of __U_MULTI_f___________false_valid_deref_i__pthread_barrierattr_t in 960521-1_1_false-valid-deref.i [2018-04-13 07:40:35,725 INFO L230 ultiparseSymbolTable]: Global variable declaration of __U_MULTI_f___________false_valid_deref_i____swblk_t in 960521-1_1_false-valid-deref.i [2018-04-13 07:40:35,725 INFO L230 ultiparseSymbolTable]: Global variable declaration of __U_MULTI_f___________false_valid_deref_i__register_t in 960521-1_1_false-valid-deref.i [2018-04-13 07:40:35,725 INFO L230 ultiparseSymbolTable]: Global variable declaration of __U_MULTI_f___________false_valid_deref_i____caddr_t in 960521-1_1_false-valid-deref.i [2018-04-13 07:40:35,725 INFO L230 ultiparseSymbolTable]: Global variable declaration of __U_MULTI_f___________false_valid_deref_i____fsfilcnt64_t in 960521-1_1_false-valid-deref.i [2018-04-13 07:40:35,726 INFO L230 ultiparseSymbolTable]: Global variable declaration of __U_MULTI_f___________false_valid_deref_i____int64_t in 960521-1_1_false-valid-deref.i [2018-04-13 07:40:35,726 INFO L230 ultiparseSymbolTable]: Global variable declaration of __U_MULTI_f___________false_valid_deref_i____dev_t in 960521-1_1_false-valid-deref.i [2018-04-13 07:40:35,726 INFO L230 ultiparseSymbolTable]: Global variable declaration of __U_MULTI_f___________false_valid_deref_i__u_quad_t in 960521-1_1_false-valid-deref.i [2018-04-13 07:40:35,726 INFO L230 ultiparseSymbolTable]: Global variable declaration of __U_MULTI_f___________false_valid_deref_i__ushort in 960521-1_1_false-valid-deref.i [2018-04-13 07:40:35,726 INFO L230 ultiparseSymbolTable]: Global variable declaration of __U_MULTI_f___________false_valid_deref_i__daddr_t in 960521-1_1_false-valid-deref.i [2018-04-13 07:40:35,726 INFO L230 ultiparseSymbolTable]: Global variable declaration of __U_MULTI_f___________false_valid_deref_i____time_t in 960521-1_1_false-valid-deref.i [2018-04-13 07:40:35,726 INFO L230 ultiparseSymbolTable]: Global variable declaration of __U_MULTI_f___________false_valid_deref_i____loff_t in 960521-1_1_false-valid-deref.i [2018-04-13 07:40:35,726 INFO L230 ultiparseSymbolTable]: Global variable declaration of __U_MULTI_f___________false_valid_deref_i__int8_t in 960521-1_1_false-valid-deref.i [2018-04-13 07:40:35,726 INFO L230 ultiparseSymbolTable]: Global variable declaration of __U_MULTI_f___________false_valid_deref_i__int64_t in 960521-1_1_false-valid-deref.i [2018-04-13 07:40:35,726 INFO L230 ultiparseSymbolTable]: Global variable declaration of __U_MULTI_f___________false_valid_deref_i__u_int64_t in 960521-1_1_false-valid-deref.i [2018-04-13 07:40:35,726 INFO L230 ultiparseSymbolTable]: Global variable declaration of __U_MULTI_f___________false_valid_deref_i____fsfilcnt_t in 960521-1_1_false-valid-deref.i [2018-04-13 07:40:35,726 INFO L230 ultiparseSymbolTable]: Global variable declaration of __U_MULTI_f___________false_valid_deref_i____rlim64_t in 960521-1_1_false-valid-deref.i [2018-04-13 07:40:35,727 INFO L230 ultiparseSymbolTable]: Global variable declaration of __U_MULTI_f___________false_valid_deref_i____WAIT_STATUS in 960521-1_1_false-valid-deref.i [2018-04-13 07:40:35,727 INFO L230 ultiparseSymbolTable]: Global variable declaration of __U_MULTI_f___________false_valid_deref_i____qaddr_t in 960521-1_1_false-valid-deref.i [2018-04-13 07:40:35,727 INFO L230 ultiparseSymbolTable]: Global variable declaration of __U_MULTI_f___________false_valid_deref_i__pthread_condattr_t in 960521-1_1_false-valid-deref.i [2018-04-13 07:40:35,727 INFO L230 ultiparseSymbolTable]: Global variable declaration of __U_MULTI_f___________false_valid_deref_i____uint16_t in 960521-1_1_false-valid-deref.i [2018-04-13 07:40:35,727 INFO L230 ultiparseSymbolTable]: Global variable declaration of __U_MULTI_f___________false_valid_deref_i____blksize_t in 960521-1_1_false-valid-deref.i [2018-04-13 07:40:35,740 INFO L330 CDTParser]: Deleted temporary CDT project at /home/ultimate/work/ultimate/releaseScripts/default/UAutomizer-linux/data/FLAG6300e7cc1 [2018-04-13 07:40:35,743 INFO L304 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2018-04-13 07:40:35,744 INFO L131 ToolchainWalker]: Walking toolchain with 4 elements. [2018-04-13 07:40:35,744 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2018-04-13 07:40:35,744 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2018-04-13 07:40:35,748 INFO L276 PluginConnector]: CACSL2BoogieTranslator initialized [2018-04-13 07:40:35,749 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 13.04 07:40:35" (1/1) ... [2018-04-13 07:40:35,750 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@688f62e5 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.04 07:40:35, skipping insertion in model container [2018-04-13 07:40:35,750 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 13.04 07:40:35" (1/1) ... [2018-04-13 07:40:35,761 INFO L167 Dispatcher]: Using SV-COMP mode [2018-04-13 07:40:35,782 INFO L167 Dispatcher]: Using SV-COMP mode [2018-04-13 07:40:35,901 INFO L175 PostProcessor]: Settings: Checked method=main [2018-04-13 07:40:35,935 INFO L175 PostProcessor]: Settings: Checked method=main [2018-04-13 07:40:35,941 INFO L100 SccComputation]: Graph consists of 0 InCaSumBalls and 112 non ball SCCs. Number of states in SCCs 112. [2018-04-13 07:40:35,970 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.04 07:40:35 WrapperNode [2018-04-13 07:40:35,970 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2018-04-13 07:40:35,970 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2018-04-13 07:40:35,971 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2018-04-13 07:40:35,971 INFO L276 PluginConnector]: Boogie Preprocessor initialized [2018-04-13 07:40:35,978 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.04 07:40:35" (1/1) ... [2018-04-13 07:40:35,978 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.04 07:40:35" (1/1) ... [2018-04-13 07:40:35,988 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.04 07:40:35" (1/1) ... [2018-04-13 07:40:35,988 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.04 07:40:35" (1/1) ... [2018-04-13 07:40:35,998 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.04 07:40:35" (1/1) ... [2018-04-13 07:40:36,002 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.04 07:40:35" (1/1) ... [2018-04-13 07:40:36,004 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.04 07:40:35" (1/1) ... [2018-04-13 07:40:36,007 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2018-04-13 07:40:36,008 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2018-04-13 07:40:36,008 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2018-04-13 07:40:36,008 INFO L276 PluginConnector]: RCFGBuilder initialized [2018-04-13 07:40:36,009 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.04 07:40:35" (1/1) ... No working directory specified, using /home/ultimate/work/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 [2018-04-13 07:40:36,082 INFO L136 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2018-04-13 07:40:36,082 INFO L136 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2018-04-13 07:40:36,082 INFO L136 BoogieDeclarations]: Found implementation of procedure __U_MULTI_f___________false_valid_deref_i__foo [2018-04-13 07:40:36,082 INFO L136 BoogieDeclarations]: Found implementation of procedure main [2018-04-13 07:40:36,082 INFO L128 BoogieDeclarations]: Found specification of procedure __VERIFIER_error [2018-04-13 07:40:36,083 INFO L128 BoogieDeclarations]: Found specification of procedure __ctype_get_mb_cur_max [2018-04-13 07:40:36,083 INFO L128 BoogieDeclarations]: Found specification of procedure atof [2018-04-13 07:40:36,083 INFO L128 BoogieDeclarations]: Found specification of procedure atoi [2018-04-13 07:40:36,083 INFO L128 BoogieDeclarations]: Found specification of procedure atol [2018-04-13 07:40:36,083 INFO L128 BoogieDeclarations]: Found specification of procedure atoll [2018-04-13 07:40:36,083 INFO L128 BoogieDeclarations]: Found specification of procedure strtod [2018-04-13 07:40:36,083 INFO L128 BoogieDeclarations]: Found specification of procedure strtof [2018-04-13 07:40:36,083 INFO L128 BoogieDeclarations]: Found specification of procedure strtold [2018-04-13 07:40:36,083 INFO L128 BoogieDeclarations]: Found specification of procedure strtol [2018-04-13 07:40:36,083 INFO L128 BoogieDeclarations]: Found specification of procedure strtoul [2018-04-13 07:40:36,083 INFO L128 BoogieDeclarations]: Found specification of procedure strtoq [2018-04-13 07:40:36,083 INFO L128 BoogieDeclarations]: Found specification of procedure strtouq [2018-04-13 07:40:36,083 INFO L128 BoogieDeclarations]: Found specification of procedure strtoll [2018-04-13 07:40:36,083 INFO L128 BoogieDeclarations]: Found specification of procedure strtoull [2018-04-13 07:40:36,083 INFO L128 BoogieDeclarations]: Found specification of procedure l64a [2018-04-13 07:40:36,083 INFO L128 BoogieDeclarations]: Found specification of procedure a64l [2018-04-13 07:40:36,083 INFO L128 BoogieDeclarations]: Found specification of procedure select [2018-04-13 07:40:36,084 INFO L128 BoogieDeclarations]: Found specification of procedure pselect [2018-04-13 07:40:36,084 INFO L128 BoogieDeclarations]: Found specification of procedure gnu_dev_major [2018-04-13 07:40:36,084 INFO L128 BoogieDeclarations]: Found specification of procedure gnu_dev_minor [2018-04-13 07:40:36,084 INFO L128 BoogieDeclarations]: Found specification of procedure gnu_dev_makedev [2018-04-13 07:40:36,084 INFO L128 BoogieDeclarations]: Found specification of procedure random [2018-04-13 07:40:36,084 INFO L128 BoogieDeclarations]: Found specification of procedure srandom [2018-04-13 07:40:36,084 INFO L128 BoogieDeclarations]: Found specification of procedure initstate [2018-04-13 07:40:36,084 INFO L128 BoogieDeclarations]: Found specification of procedure setstate [2018-04-13 07:40:36,084 INFO L128 BoogieDeclarations]: Found specification of procedure random_r [2018-04-13 07:40:36,084 INFO L128 BoogieDeclarations]: Found specification of procedure srandom_r [2018-04-13 07:40:36,084 INFO L128 BoogieDeclarations]: Found specification of procedure initstate_r [2018-04-13 07:40:36,084 INFO L128 BoogieDeclarations]: Found specification of procedure setstate_r [2018-04-13 07:40:36,084 INFO L128 BoogieDeclarations]: Found specification of procedure rand [2018-04-13 07:40:36,084 INFO L128 BoogieDeclarations]: Found specification of procedure srand [2018-04-13 07:40:36,084 INFO L128 BoogieDeclarations]: Found specification of procedure rand_r [2018-04-13 07:40:36,084 INFO L128 BoogieDeclarations]: Found specification of procedure drand48 [2018-04-13 07:40:36,084 INFO L128 BoogieDeclarations]: Found specification of procedure erand48 [2018-04-13 07:40:36,084 INFO L128 BoogieDeclarations]: Found specification of procedure lrand48 [2018-04-13 07:40:36,085 INFO L128 BoogieDeclarations]: Found specification of procedure nrand48 [2018-04-13 07:40:36,085 INFO L128 BoogieDeclarations]: Found specification of procedure mrand48 [2018-04-13 07:40:36,085 INFO L128 BoogieDeclarations]: Found specification of procedure jrand48 [2018-04-13 07:40:36,085 INFO L128 BoogieDeclarations]: Found specification of procedure srand48 [2018-04-13 07:40:36,085 INFO L128 BoogieDeclarations]: Found specification of procedure seed48 [2018-04-13 07:40:36,085 INFO L128 BoogieDeclarations]: Found specification of procedure lcong48 [2018-04-13 07:40:36,085 INFO L128 BoogieDeclarations]: Found specification of procedure drand48_r [2018-04-13 07:40:36,085 INFO L128 BoogieDeclarations]: Found specification of procedure erand48_r [2018-04-13 07:40:36,085 INFO L128 BoogieDeclarations]: Found specification of procedure lrand48_r [2018-04-13 07:40:36,085 INFO L128 BoogieDeclarations]: Found specification of procedure nrand48_r [2018-04-13 07:40:36,085 INFO L128 BoogieDeclarations]: Found specification of procedure mrand48_r [2018-04-13 07:40:36,085 INFO L128 BoogieDeclarations]: Found specification of procedure jrand48_r [2018-04-13 07:40:36,085 INFO L128 BoogieDeclarations]: Found specification of procedure srand48_r [2018-04-13 07:40:36,085 INFO L128 BoogieDeclarations]: Found specification of procedure seed48_r [2018-04-13 07:40:36,085 INFO L128 BoogieDeclarations]: Found specification of procedure lcong48_r [2018-04-13 07:40:36,085 INFO L128 BoogieDeclarations]: Found specification of procedure malloc [2018-04-13 07:40:36,085 INFO L128 BoogieDeclarations]: Found specification of procedure calloc [2018-04-13 07:40:36,085 INFO L128 BoogieDeclarations]: Found specification of procedure realloc [2018-04-13 07:40:36,085 INFO L128 BoogieDeclarations]: Found specification of procedure free [2018-04-13 07:40:36,086 INFO L128 BoogieDeclarations]: Found specification of procedure cfree [2018-04-13 07:40:36,086 INFO L128 BoogieDeclarations]: Found specification of procedure alloca [2018-04-13 07:40:36,086 INFO L128 BoogieDeclarations]: Found specification of procedure valloc [2018-04-13 07:40:36,086 INFO L128 BoogieDeclarations]: Found specification of procedure posix_memalign [2018-04-13 07:40:36,086 INFO L128 BoogieDeclarations]: Found specification of procedure abort [2018-04-13 07:40:36,086 INFO L128 BoogieDeclarations]: Found specification of procedure atexit [2018-04-13 07:40:36,086 INFO L128 BoogieDeclarations]: Found specification of procedure on_exit [2018-04-13 07:40:36,086 INFO L128 BoogieDeclarations]: Found specification of procedure exit [2018-04-13 07:40:36,086 INFO L128 BoogieDeclarations]: Found specification of procedure _Exit [2018-04-13 07:40:36,086 INFO L128 BoogieDeclarations]: Found specification of procedure getenv [2018-04-13 07:40:36,086 INFO L128 BoogieDeclarations]: Found specification of procedure __secure_getenv [2018-04-13 07:40:36,086 INFO L128 BoogieDeclarations]: Found specification of procedure putenv [2018-04-13 07:40:36,086 INFO L128 BoogieDeclarations]: Found specification of procedure setenv [2018-04-13 07:40:36,086 INFO L128 BoogieDeclarations]: Found specification of procedure unsetenv [2018-04-13 07:40:36,086 INFO L128 BoogieDeclarations]: Found specification of procedure clearenv [2018-04-13 07:40:36,086 INFO L128 BoogieDeclarations]: Found specification of procedure mktemp [2018-04-13 07:40:36,086 INFO L128 BoogieDeclarations]: Found specification of procedure mkstemp [2018-04-13 07:40:36,086 INFO L128 BoogieDeclarations]: Found specification of procedure mkstemps [2018-04-13 07:40:36,087 INFO L128 BoogieDeclarations]: Found specification of procedure mkdtemp [2018-04-13 07:40:36,087 INFO L128 BoogieDeclarations]: Found specification of procedure system [2018-04-13 07:40:36,087 INFO L128 BoogieDeclarations]: Found specification of procedure realpath [2018-04-13 07:40:36,087 INFO L128 BoogieDeclarations]: Found specification of procedure bsearch [2018-04-13 07:40:36,087 INFO L128 BoogieDeclarations]: Found specification of procedure qsort [2018-04-13 07:40:36,087 INFO L128 BoogieDeclarations]: Found specification of procedure abs [2018-04-13 07:40:36,087 INFO L128 BoogieDeclarations]: Found specification of procedure labs [2018-04-13 07:40:36,087 INFO L128 BoogieDeclarations]: Found specification of procedure llabs [2018-04-13 07:40:36,087 INFO L128 BoogieDeclarations]: Found specification of procedure div [2018-04-13 07:40:36,087 INFO L128 BoogieDeclarations]: Found specification of procedure ldiv [2018-04-13 07:40:36,087 INFO L128 BoogieDeclarations]: Found specification of procedure lldiv [2018-04-13 07:40:36,087 INFO L128 BoogieDeclarations]: Found specification of procedure ecvt [2018-04-13 07:40:36,087 INFO L128 BoogieDeclarations]: Found specification of procedure fcvt [2018-04-13 07:40:36,087 INFO L128 BoogieDeclarations]: Found specification of procedure gcvt [2018-04-13 07:40:36,087 INFO L128 BoogieDeclarations]: Found specification of procedure qecvt [2018-04-13 07:40:36,087 INFO L128 BoogieDeclarations]: Found specification of procedure qfcvt [2018-04-13 07:40:36,087 INFO L128 BoogieDeclarations]: Found specification of procedure qgcvt [2018-04-13 07:40:36,087 INFO L128 BoogieDeclarations]: Found specification of procedure ecvt_r [2018-04-13 07:40:36,088 INFO L128 BoogieDeclarations]: Found specification of procedure fcvt_r [2018-04-13 07:40:36,088 INFO L128 BoogieDeclarations]: Found specification of procedure qecvt_r [2018-04-13 07:40:36,088 INFO L128 BoogieDeclarations]: Found specification of procedure qfcvt_r [2018-04-13 07:40:36,088 INFO L128 BoogieDeclarations]: Found specification of procedure mblen [2018-04-13 07:40:36,088 INFO L128 BoogieDeclarations]: Found specification of procedure mbtowc [2018-04-13 07:40:36,088 INFO L128 BoogieDeclarations]: Found specification of procedure wctomb [2018-04-13 07:40:36,088 INFO L128 BoogieDeclarations]: Found specification of procedure mbstowcs [2018-04-13 07:40:36,088 INFO L128 BoogieDeclarations]: Found specification of procedure wcstombs [2018-04-13 07:40:36,088 INFO L128 BoogieDeclarations]: Found specification of procedure rpmatch [2018-04-13 07:40:36,088 INFO L128 BoogieDeclarations]: Found specification of procedure getsubopt [2018-04-13 07:40:36,088 INFO L128 BoogieDeclarations]: Found specification of procedure getloadavg [2018-04-13 07:40:36,088 INFO L128 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_int [2018-04-13 07:40:36,088 INFO L128 BoogieDeclarations]: Found specification of procedure __U_MULTI_f___________false_valid_deref_i__foo [2018-04-13 07:40:36,088 INFO L128 BoogieDeclarations]: Found specification of procedure write~int [2018-04-13 07:40:36,088 INFO L128 BoogieDeclarations]: Found specification of procedure main [2018-04-13 07:40:36,088 INFO L128 BoogieDeclarations]: Found specification of procedure #Ultimate.alloc [2018-04-13 07:40:36,088 INFO L128 BoogieDeclarations]: Found specification of procedure read~int [2018-04-13 07:40:36,088 INFO L128 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2018-04-13 07:40:36,088 INFO L128 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2018-04-13 07:40:36,089 INFO L128 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2018-04-13 07:40:36,089 INFO L128 BoogieDeclarations]: Found specification of procedure write~unchecked~int [2018-04-13 07:40:36,325 INFO L259 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2018-04-13 07:40:36,326 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 13.04 07:40:36 BoogieIcfgContainer [2018-04-13 07:40:36,326 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2018-04-13 07:40:36,327 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2018-04-13 07:40:36,327 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2018-04-13 07:40:36,329 INFO L276 PluginConnector]: TraceAbstraction initialized [2018-04-13 07:40:36,329 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 13.04 07:40:35" (1/3) ... [2018-04-13 07:40:36,330 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@24d1b86d and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 13.04 07:40:36, skipping insertion in model container [2018-04-13 07:40:36,330 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.04 07:40:35" (2/3) ... [2018-04-13 07:40:36,330 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@24d1b86d and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 13.04 07:40:36, skipping insertion in model container [2018-04-13 07:40:36,330 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 13.04 07:40:36" (3/3) ... [2018-04-13 07:40:36,332 INFO L107 eAbstractionObserver]: Analyzing ICFG 960521-1_1_false-valid-deref.i [2018-04-13 07:40:36,337 INFO L131 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2018-04-13 07:40:36,343 INFO L143 ceAbstractionStarter]: Appying trace abstraction to program that has 17 error locations. [2018-04-13 07:40:36,366 INFO L128 ementStrategyFactory]: Using default assertion order modulation [2018-04-13 07:40:36,367 INFO L369 AbstractCegarLoop]: Interprodecural is true [2018-04-13 07:40:36,367 INFO L370 AbstractCegarLoop]: Hoare is false [2018-04-13 07:40:36,367 INFO L371 AbstractCegarLoop]: Compute interpolants for FPandBP [2018-04-13 07:40:36,367 INFO L372 AbstractCegarLoop]: Backedges is TWOTRACK [2018-04-13 07:40:36,367 INFO L373 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2018-04-13 07:40:36,367 INFO L374 AbstractCegarLoop]: Difference is false [2018-04-13 07:40:36,367 INFO L375 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2018-04-13 07:40:36,367 INFO L380 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2018-04-13 07:40:36,367 INFO L87 2NestedWordAutomaton]: Mode: main mode - execution starts in main procedure [2018-04-13 07:40:36,375 INFO L276 IsEmpty]: Start isEmpty. Operand 64 states. [2018-04-13 07:40:36,382 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 13 [2018-04-13 07:40:36,383 INFO L347 BasicCegarLoop]: Found error trace [2018-04-13 07:40:36,383 INFO L355 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-04-13 07:40:36,383 INFO L408 AbstractCegarLoop]: === Iteration 1 === [mainErr1RequiresViolation, mainErr6AssertViolationMEMORY_FREE, mainErr4AssertViolationMEMORY_FREE, mainErr10AssertViolationMEMORY_FREE, mainErr11AssertViolationMEMORY_FREE, mainErr0RequiresViolation, mainErr12EnsuresViolationMEMORY_LEAK, mainErr3RequiresViolation, mainErr7AssertViolationMEMORY_FREE, mainErr9AssertViolationMEMORY_FREE, mainErr2RequiresViolation, mainErr8AssertViolationMEMORY_FREE, mainErr5AssertViolationMEMORY_FREE, __U_MULTI_f___________false_valid_deref_i__fooErr2RequiresViolation, __U_MULTI_f___________false_valid_deref_i__fooErr3RequiresViolation, __U_MULTI_f___________false_valid_deref_i__fooErr0RequiresViolation, __U_MULTI_f___________false_valid_deref_i__fooErr1RequiresViolation]=== [2018-04-13 07:40:36,386 INFO L82 PathProgramCache]: Analyzing trace with hash 1262873826, now seen corresponding path program 1 times [2018-04-13 07:40:36,387 INFO L213 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS_NO_ARRAY [2018-04-13 07:40:36,387 INFO L68 tionRefinementEngine]: Using refinement strategy SmtInterpolRefinementStrategy [2018-04-13 07:40:36,415 INFO L119 rtionOrderModulation]: Craig nested/tree interpolation forces the following order [2018-04-13 07:40:36,415 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-04-13 07:40:36,416 INFO L119 rtionOrderModulation]: Craig nested/tree interpolation forces the following order [2018-04-13 07:40:36,443 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-04-13 07:40:36,448 WARN L250 erpolLogProxyWrapper]: Using partial proofs (cut at CNF-level). Set option :produce-proofs to true to get complete proofs. [2018-04-13 07:40:36,469 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-04-13 07:40:36,471 INFO L320 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-04-13 07:40:36,471 INFO L335 seRefinementStrategy]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2018-04-13 07:40:36,473 INFO L442 AbstractCegarLoop]: Interpolant automaton has 2 states [2018-04-13 07:40:36,481 INFO L132 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2018-04-13 07:40:36,481 INFO L133 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2018-04-13 07:40:36,483 INFO L87 Difference]: Start difference. First operand 64 states. Second operand 2 states. [2018-04-13 07:40:36,496 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-04-13 07:40:36,496 INFO L93 Difference]: Finished difference Result 64 states and 67 transitions. [2018-04-13 07:40:36,496 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2018-04-13 07:40:36,497 INFO L78 Accepts]: Start accepts. Automaton has 2 states. Word has length 12 [2018-04-13 07:40:36,497 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-04-13 07:40:36,503 INFO L225 Difference]: With dead ends: 64 [2018-04-13 07:40:36,503 INFO L226 Difference]: Without dead ends: 61 [2018-04-13 07:40:36,504 INFO L567 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 [2018-04-13 07:40:36,515 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 61 states. [2018-04-13 07:40:36,526 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 61 to 61. [2018-04-13 07:40:36,527 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 61 states. [2018-04-13 07:40:36,528 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 61 states to 61 states and 64 transitions. [2018-04-13 07:40:36,529 INFO L78 Accepts]: Start accepts. Automaton has 61 states and 64 transitions. Word has length 12 [2018-04-13 07:40:36,529 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-04-13 07:40:36,529 INFO L459 AbstractCegarLoop]: Abstraction has 61 states and 64 transitions. [2018-04-13 07:40:36,529 INFO L460 AbstractCegarLoop]: Interpolant automaton has 2 states. [2018-04-13 07:40:36,529 INFO L276 IsEmpty]: Start isEmpty. Operand 61 states and 64 transitions. [2018-04-13 07:40:36,530 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 15 [2018-04-13 07:40:36,530 INFO L347 BasicCegarLoop]: Found error trace [2018-04-13 07:40:36,530 INFO L355 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-04-13 07:40:36,530 INFO L408 AbstractCegarLoop]: === Iteration 2 === [mainErr1RequiresViolation, mainErr6AssertViolationMEMORY_FREE, mainErr4AssertViolationMEMORY_FREE, mainErr10AssertViolationMEMORY_FREE, mainErr11AssertViolationMEMORY_FREE, mainErr0RequiresViolation, mainErr12EnsuresViolationMEMORY_LEAK, mainErr3RequiresViolation, mainErr7AssertViolationMEMORY_FREE, mainErr9AssertViolationMEMORY_FREE, mainErr2RequiresViolation, mainErr8AssertViolationMEMORY_FREE, mainErr5AssertViolationMEMORY_FREE, __U_MULTI_f___________false_valid_deref_i__fooErr2RequiresViolation, __U_MULTI_f___________false_valid_deref_i__fooErr3RequiresViolation, __U_MULTI_f___________false_valid_deref_i__fooErr0RequiresViolation, __U_MULTI_f___________false_valid_deref_i__fooErr1RequiresViolation]=== [2018-04-13 07:40:36,530 INFO L82 PathProgramCache]: Analyzing trace with hash 40666728, now seen corresponding path program 1 times [2018-04-13 07:40:36,531 INFO L213 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS_NO_ARRAY [2018-04-13 07:40:36,531 INFO L68 tionRefinementEngine]: Using refinement strategy SmtInterpolRefinementStrategy [2018-04-13 07:40:36,532 INFO L119 rtionOrderModulation]: Craig nested/tree interpolation forces the following order [2018-04-13 07:40:36,532 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-04-13 07:40:36,532 INFO L119 rtionOrderModulation]: Craig nested/tree interpolation forces the following order [2018-04-13 07:40:36,550 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-04-13 07:40:36,551 WARN L250 erpolLogProxyWrapper]: Using partial proofs (cut at CNF-level). Set option :produce-proofs to true to get complete proofs. [2018-04-13 07:40:36,605 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-04-13 07:40:36,605 INFO L320 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-04-13 07:40:36,605 INFO L335 seRefinementStrategy]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2018-04-13 07:40:36,607 INFO L442 AbstractCegarLoop]: Interpolant automaton has 4 states [2018-04-13 07:40:36,607 INFO L132 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2018-04-13 07:40:36,608 INFO L133 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2018-04-13 07:40:36,608 INFO L87 Difference]: Start difference. First operand 61 states and 64 transitions. Second operand 4 states. [2018-04-13 07:40:36,664 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-04-13 07:40:36,664 INFO L93 Difference]: Finished difference Result 60 states and 63 transitions. [2018-04-13 07:40:36,665 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2018-04-13 07:40:36,665 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 14 [2018-04-13 07:40:36,665 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-04-13 07:40:36,666 INFO L225 Difference]: With dead ends: 60 [2018-04-13 07:40:36,666 INFO L226 Difference]: Without dead ends: 60 [2018-04-13 07:40:36,666 INFO L567 BasicCegarLoop]: 0 DeclaredPredicates, 4 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2018-04-13 07:40:36,667 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 60 states. [2018-04-13 07:40:36,669 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 60 to 60. [2018-04-13 07:40:36,669 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 60 states. [2018-04-13 07:40:36,671 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 60 states to 60 states and 63 transitions. [2018-04-13 07:40:36,671 INFO L78 Accepts]: Start accepts. Automaton has 60 states and 63 transitions. Word has length 14 [2018-04-13 07:40:36,671 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-04-13 07:40:36,671 INFO L459 AbstractCegarLoop]: Abstraction has 60 states and 63 transitions. [2018-04-13 07:40:36,671 INFO L460 AbstractCegarLoop]: Interpolant automaton has 4 states. [2018-04-13 07:40:36,671 INFO L276 IsEmpty]: Start isEmpty. Operand 60 states and 63 transitions. [2018-04-13 07:40:36,671 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 15 [2018-04-13 07:40:36,671 INFO L347 BasicCegarLoop]: Found error trace [2018-04-13 07:40:36,672 INFO L355 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-04-13 07:40:36,672 INFO L408 AbstractCegarLoop]: === Iteration 3 === [mainErr1RequiresViolation, mainErr6AssertViolationMEMORY_FREE, mainErr4AssertViolationMEMORY_FREE, mainErr10AssertViolationMEMORY_FREE, mainErr11AssertViolationMEMORY_FREE, mainErr0RequiresViolation, mainErr12EnsuresViolationMEMORY_LEAK, mainErr3RequiresViolation, mainErr7AssertViolationMEMORY_FREE, mainErr9AssertViolationMEMORY_FREE, mainErr2RequiresViolation, mainErr8AssertViolationMEMORY_FREE, mainErr5AssertViolationMEMORY_FREE, __U_MULTI_f___________false_valid_deref_i__fooErr2RequiresViolation, __U_MULTI_f___________false_valid_deref_i__fooErr3RequiresViolation, __U_MULTI_f___________false_valid_deref_i__fooErr0RequiresViolation, __U_MULTI_f___________false_valid_deref_i__fooErr1RequiresViolation]=== [2018-04-13 07:40:36,672 INFO L82 PathProgramCache]: Analyzing trace with hash 40666729, now seen corresponding path program 1 times [2018-04-13 07:40:36,672 INFO L213 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS_NO_ARRAY [2018-04-13 07:40:36,672 INFO L68 tionRefinementEngine]: Using refinement strategy SmtInterpolRefinementStrategy [2018-04-13 07:40:36,673 INFO L119 rtionOrderModulation]: Craig nested/tree interpolation forces the following order [2018-04-13 07:40:36,673 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-04-13 07:40:36,673 INFO L119 rtionOrderModulation]: Craig nested/tree interpolation forces the following order [2018-04-13 07:40:36,685 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-04-13 07:40:36,686 WARN L250 erpolLogProxyWrapper]: Using partial proofs (cut at CNF-level). Set option :produce-proofs to true to get complete proofs. [2018-04-13 07:40:36,728 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-04-13 07:40:36,729 INFO L320 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-04-13 07:40:36,729 INFO L335 seRefinementStrategy]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2018-04-13 07:40:36,729 INFO L442 AbstractCegarLoop]: Interpolant automaton has 5 states [2018-04-13 07:40:36,729 INFO L132 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2018-04-13 07:40:36,729 INFO L133 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2018-04-13 07:40:36,729 INFO L87 Difference]: Start difference. First operand 60 states and 63 transitions. Second operand 5 states. [2018-04-13 07:40:36,788 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-04-13 07:40:36,788 INFO L93 Difference]: Finished difference Result 59 states and 62 transitions. [2018-04-13 07:40:36,789 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2018-04-13 07:40:36,789 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 14 [2018-04-13 07:40:36,789 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-04-13 07:40:36,790 INFO L225 Difference]: With dead ends: 59 [2018-04-13 07:40:36,790 INFO L226 Difference]: Without dead ends: 59 [2018-04-13 07:40:36,790 INFO L567 BasicCegarLoop]: 0 DeclaredPredicates, 6 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=17, Invalid=25, Unknown=0, NotChecked=0, Total=42 [2018-04-13 07:40:36,791 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 59 states. [2018-04-13 07:40:36,793 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 59 to 59. [2018-04-13 07:40:36,793 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 59 states. [2018-04-13 07:40:36,794 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 59 states to 59 states and 62 transitions. [2018-04-13 07:40:36,794 INFO L78 Accepts]: Start accepts. Automaton has 59 states and 62 transitions. Word has length 14 [2018-04-13 07:40:36,795 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-04-13 07:40:36,795 INFO L459 AbstractCegarLoop]: Abstraction has 59 states and 62 transitions. [2018-04-13 07:40:36,795 INFO L460 AbstractCegarLoop]: Interpolant automaton has 5 states. [2018-04-13 07:40:36,795 INFO L276 IsEmpty]: Start isEmpty. Operand 59 states and 62 transitions. [2018-04-13 07:40:36,795 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 21 [2018-04-13 07:40:36,795 INFO L347 BasicCegarLoop]: Found error trace [2018-04-13 07:40:36,795 INFO L355 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-04-13 07:40:36,795 INFO L408 AbstractCegarLoop]: === Iteration 4 === [mainErr1RequiresViolation, mainErr6AssertViolationMEMORY_FREE, mainErr4AssertViolationMEMORY_FREE, mainErr10AssertViolationMEMORY_FREE, mainErr11AssertViolationMEMORY_FREE, mainErr0RequiresViolation, mainErr12EnsuresViolationMEMORY_LEAK, mainErr3RequiresViolation, mainErr7AssertViolationMEMORY_FREE, mainErr9AssertViolationMEMORY_FREE, mainErr2RequiresViolation, mainErr8AssertViolationMEMORY_FREE, mainErr5AssertViolationMEMORY_FREE, __U_MULTI_f___________false_valid_deref_i__fooErr2RequiresViolation, __U_MULTI_f___________false_valid_deref_i__fooErr3RequiresViolation, __U_MULTI_f___________false_valid_deref_i__fooErr0RequiresViolation, __U_MULTI_f___________false_valid_deref_i__fooErr1RequiresViolation]=== [2018-04-13 07:40:36,796 INFO L82 PathProgramCache]: Analyzing trace with hash 2072410647, now seen corresponding path program 1 times [2018-04-13 07:40:36,796 INFO L213 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS_NO_ARRAY [2018-04-13 07:40:36,796 INFO L68 tionRefinementEngine]: Using refinement strategy SmtInterpolRefinementStrategy [2018-04-13 07:40:36,797 INFO L119 rtionOrderModulation]: Craig nested/tree interpolation forces the following order [2018-04-13 07:40:36,797 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-04-13 07:40:36,797 INFO L119 rtionOrderModulation]: Craig nested/tree interpolation forces the following order [2018-04-13 07:40:36,810 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-04-13 07:40:36,810 WARN L250 erpolLogProxyWrapper]: Using partial proofs (cut at CNF-level). Set option :produce-proofs to true to get complete proofs. [2018-04-13 07:40:36,816 INFO L431 seRefinementStrategy]: Interpolation failed due to KNOWN_IGNORE: Unknown lemma type! [2018-04-13 07:40:36,816 INFO L308 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2018-04-13 07:40:36,816 INFO L213 ckRefinementStrategy]: Switched to mode SMTINTERPOL_FP [2018-04-13 07:40:36,817 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-04-13 07:40:36,851 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-04-13 07:40:36,858 INFO L270 TraceCheckSpWp]: Computing forward predicates... [2018-04-13 07:40:36,882 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 6 treesize of output 5 [2018-04-13 07:40:36,883 INFO L267 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2018-04-13 07:40:36,884 INFO L267 ElimStorePlain]: Start of recursive call 1: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-04-13 07:40:36,884 INFO L202 ElimStorePlain]: Needed 2 recursive calls to eliminate 1 variables, input treesize:6, output treesize:5 [2018-04-13 07:40:36,894 INFO L700 Elim1Store]: detected not equals via solver [2018-04-13 07:40:36,895 INFO L700 Elim1Store]: detected not equals via solver [2018-04-13 07:40:36,899 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 2 select indices, 2 select index equivalence classes, 2 disjoint index pairs (out of 1 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 17 treesize of output 21 [2018-04-13 07:40:36,899 INFO L267 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2018-04-13 07:40:36,904 INFO L267 ElimStorePlain]: Start of recursive call 1: 1 dim-0 vars, 1 dim-1 vars, End of recursive call: 1 dim-0 vars, and 1 xjuncts. [2018-04-13 07:40:36,904 INFO L202 ElimStorePlain]: Needed 2 recursive calls to eliminate 2 variables, input treesize:17, output treesize:15 [2018-04-13 07:40:36,924 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-04-13 07:40:36,924 INFO L320 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-04-13 07:40:36,924 INFO L335 seRefinementStrategy]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2018-04-13 07:40:36,924 INFO L442 AbstractCegarLoop]: Interpolant automaton has 5 states [2018-04-13 07:40:36,924 INFO L132 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2018-04-13 07:40:36,925 INFO L133 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2018-04-13 07:40:36,925 INFO L87 Difference]: Start difference. First operand 59 states and 62 transitions. Second operand 5 states. [2018-04-13 07:40:37,002 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-04-13 07:40:37,002 INFO L93 Difference]: Finished difference Result 56 states and 59 transitions. [2018-04-13 07:40:37,002 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2018-04-13 07:40:37,002 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 20 [2018-04-13 07:40:37,002 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-04-13 07:40:37,003 INFO L225 Difference]: With dead ends: 56 [2018-04-13 07:40:37,003 INFO L226 Difference]: Without dead ends: 56 [2018-04-13 07:40:37,003 INFO L567 BasicCegarLoop]: 0 DeclaredPredicates, 21 GetRequests, 16 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=18, Invalid=24, Unknown=0, NotChecked=0, Total=42 [2018-04-13 07:40:37,003 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 56 states. [2018-04-13 07:40:37,006 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 56 to 56. [2018-04-13 07:40:37,006 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 56 states. [2018-04-13 07:40:37,007 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 56 states to 56 states and 59 transitions. [2018-04-13 07:40:37,007 INFO L78 Accepts]: Start accepts. Automaton has 56 states and 59 transitions. Word has length 20 [2018-04-13 07:40:37,007 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-04-13 07:40:37,007 INFO L459 AbstractCegarLoop]: Abstraction has 56 states and 59 transitions. [2018-04-13 07:40:37,007 INFO L460 AbstractCegarLoop]: Interpolant automaton has 5 states. [2018-04-13 07:40:37,007 INFO L276 IsEmpty]: Start isEmpty. Operand 56 states and 59 transitions. [2018-04-13 07:40:37,008 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 21 [2018-04-13 07:40:37,008 INFO L347 BasicCegarLoop]: Found error trace [2018-04-13 07:40:37,008 INFO L355 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-04-13 07:40:37,008 INFO L408 AbstractCegarLoop]: === Iteration 5 === [mainErr1RequiresViolation, mainErr6AssertViolationMEMORY_FREE, mainErr4AssertViolationMEMORY_FREE, mainErr10AssertViolationMEMORY_FREE, mainErr11AssertViolationMEMORY_FREE, mainErr0RequiresViolation, mainErr12EnsuresViolationMEMORY_LEAK, mainErr3RequiresViolation, mainErr7AssertViolationMEMORY_FREE, mainErr9AssertViolationMEMORY_FREE, mainErr2RequiresViolation, mainErr8AssertViolationMEMORY_FREE, mainErr5AssertViolationMEMORY_FREE, __U_MULTI_f___________false_valid_deref_i__fooErr2RequiresViolation, __U_MULTI_f___________false_valid_deref_i__fooErr3RequiresViolation, __U_MULTI_f___________false_valid_deref_i__fooErr0RequiresViolation, __U_MULTI_f___________false_valid_deref_i__fooErr1RequiresViolation]=== [2018-04-13 07:40:37,008 INFO L82 PathProgramCache]: Analyzing trace with hash 2072410648, now seen corresponding path program 1 times [2018-04-13 07:40:37,008 INFO L213 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS_NO_ARRAY [2018-04-13 07:40:37,009 INFO L68 tionRefinementEngine]: Using refinement strategy SmtInterpolRefinementStrategy [2018-04-13 07:40:37,009 INFO L119 rtionOrderModulation]: Craig nested/tree interpolation forces the following order [2018-04-13 07:40:37,010 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-04-13 07:40:37,010 INFO L119 rtionOrderModulation]: Craig nested/tree interpolation forces the following order [2018-04-13 07:40:37,020 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-04-13 07:40:37,021 WARN L250 erpolLogProxyWrapper]: Using partial proofs (cut at CNF-level). Set option :produce-proofs to true to get complete proofs. [2018-04-13 07:40:37,025 INFO L431 seRefinementStrategy]: Interpolation failed due to KNOWN_IGNORE: Unknown lemma type! [2018-04-13 07:40:37,025 INFO L308 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2018-04-13 07:40:37,025 INFO L213 ckRefinementStrategy]: Switched to mode SMTINTERPOL_FP [2018-04-13 07:40:37,026 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-04-13 07:40:37,058 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-04-13 07:40:37,062 INFO L270 TraceCheckSpWp]: Computing forward predicates... [2018-04-13 07:40:37,070 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 6 treesize of output 5 [2018-04-13 07:40:37,071 INFO L267 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2018-04-13 07:40:37,083 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 8 treesize of output 7 [2018-04-13 07:40:37,084 INFO L267 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 1 xjuncts. [2018-04-13 07:40:37,092 INFO L267 ElimStorePlain]: Start of recursive call 1: 2 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-04-13 07:40:37,093 INFO L202 ElimStorePlain]: Needed 3 recursive calls to eliminate 2 variables, input treesize:21, output treesize:19 [2018-04-13 07:40:37,117 INFO L700 Elim1Store]: detected not equals via solver [2018-04-13 07:40:37,130 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 16 treesize of output 19 [2018-04-13 07:40:37,131 INFO L267 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2018-04-13 07:40:37,149 INFO L700 Elim1Store]: detected not equals via solver [2018-04-13 07:40:37,149 INFO L700 Elim1Store]: detected not equals via solver [2018-04-13 07:40:37,150 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 2 select indices, 2 select index equivalence classes, 2 disjoint index pairs (out of 1 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 11 treesize of output 4 [2018-04-13 07:40:37,151 INFO L267 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 1 xjuncts. [2018-04-13 07:40:37,163 INFO L267 ElimStorePlain]: Start of recursive call 1: 2 dim-0 vars, 2 dim-1 vars, End of recursive call: 2 dim-0 vars, and 1 xjuncts. [2018-04-13 07:40:37,163 INFO L202 ElimStorePlain]: Needed 3 recursive calls to eliminate 4 variables, input treesize:32, output treesize:25 [2018-04-13 07:40:37,206 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-04-13 07:40:37,206 INFO L320 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-04-13 07:40:37,207 INFO L335 seRefinementStrategy]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2018-04-13 07:40:37,207 INFO L442 AbstractCegarLoop]: Interpolant automaton has 7 states [2018-04-13 07:40:37,207 INFO L132 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2018-04-13 07:40:37,207 INFO L133 InterpolantAutomaton]: CoverageRelationStatistics Valid=14, Invalid=28, Unknown=0, NotChecked=0, Total=42 [2018-04-13 07:40:37,207 INFO L87 Difference]: Start difference. First operand 56 states and 59 transitions. Second operand 7 states. [2018-04-13 07:40:37,485 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-04-13 07:40:37,485 INFO L93 Difference]: Finished difference Result 66 states and 70 transitions. [2018-04-13 07:40:37,485 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2018-04-13 07:40:37,485 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 20 [2018-04-13 07:40:37,486 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-04-13 07:40:37,487 INFO L225 Difference]: With dead ends: 66 [2018-04-13 07:40:37,487 INFO L226 Difference]: Without dead ends: 66 [2018-04-13 07:40:37,491 INFO L567 BasicCegarLoop]: 0 DeclaredPredicates, 24 GetRequests, 14 SyntacticMatches, 0 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 14 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=46, Invalid=86, Unknown=0, NotChecked=0, Total=132 [2018-04-13 07:40:37,491 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 66 states. [2018-04-13 07:40:37,493 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 66 to 57. [2018-04-13 07:40:37,493 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 57 states. [2018-04-13 07:40:37,493 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 57 states to 57 states and 60 transitions. [2018-04-13 07:40:37,493 INFO L78 Accepts]: Start accepts. Automaton has 57 states and 60 transitions. Word has length 20 [2018-04-13 07:40:37,493 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-04-13 07:40:37,493 INFO L459 AbstractCegarLoop]: Abstraction has 57 states and 60 transitions. [2018-04-13 07:40:37,493 INFO L460 AbstractCegarLoop]: Interpolant automaton has 7 states. [2018-04-13 07:40:37,493 INFO L276 IsEmpty]: Start isEmpty. Operand 57 states and 60 transitions. [2018-04-13 07:40:37,494 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 25 [2018-04-13 07:40:37,494 INFO L347 BasicCegarLoop]: Found error trace [2018-04-13 07:40:37,494 INFO L355 BasicCegarLoop]: trace histogram [2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-04-13 07:40:37,494 INFO L408 AbstractCegarLoop]: === Iteration 6 === [mainErr1RequiresViolation, mainErr6AssertViolationMEMORY_FREE, mainErr4AssertViolationMEMORY_FREE, mainErr10AssertViolationMEMORY_FREE, mainErr11AssertViolationMEMORY_FREE, mainErr0RequiresViolation, mainErr12EnsuresViolationMEMORY_LEAK, mainErr3RequiresViolation, mainErr7AssertViolationMEMORY_FREE, mainErr9AssertViolationMEMORY_FREE, mainErr2RequiresViolation, mainErr8AssertViolationMEMORY_FREE, mainErr5AssertViolationMEMORY_FREE, __U_MULTI_f___________false_valid_deref_i__fooErr2RequiresViolation, __U_MULTI_f___________false_valid_deref_i__fooErr3RequiresViolation, __U_MULTI_f___________false_valid_deref_i__fooErr0RequiresViolation, __U_MULTI_f___________false_valid_deref_i__fooErr1RequiresViolation]=== [2018-04-13 07:40:37,494 INFO L82 PathProgramCache]: Analyzing trace with hash 17902319, now seen corresponding path program 1 times [2018-04-13 07:40:37,494 INFO L213 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS_NO_ARRAY [2018-04-13 07:40:37,494 INFO L68 tionRefinementEngine]: Using refinement strategy SmtInterpolRefinementStrategy [2018-04-13 07:40:37,495 INFO L119 rtionOrderModulation]: Craig nested/tree interpolation forces the following order [2018-04-13 07:40:37,495 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-04-13 07:40:37,495 INFO L119 rtionOrderModulation]: Craig nested/tree interpolation forces the following order [2018-04-13 07:40:37,503 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-04-13 07:40:37,503 WARN L250 erpolLogProxyWrapper]: Using partial proofs (cut at CNF-level). Set option :produce-proofs to true to get complete proofs. [2018-04-13 07:40:37,544 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 1 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-04-13 07:40:37,544 INFO L308 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2018-04-13 07:40:37,544 INFO L213 ckRefinementStrategy]: Switched to mode SMTINTERPOL_FP [2018-04-13 07:40:37,545 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-04-13 07:40:37,561 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-04-13 07:40:37,563 INFO L270 TraceCheckSpWp]: Computing forward predicates... [2018-04-13 07:40:37,593 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 3 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-04-13 07:40:37,593 INFO L320 seRefinementStrategy]: Constructing automaton from 1 perfect and 1 imperfect interpolant sequences. [2018-04-13 07:40:37,594 INFO L335 seRefinementStrategy]: Number of different interpolants: perfect sequences [5] imperfect sequences [7] total 9 [2018-04-13 07:40:37,594 INFO L442 AbstractCegarLoop]: Interpolant automaton has 9 states [2018-04-13 07:40:37,594 INFO L132 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2018-04-13 07:40:37,594 INFO L133 InterpolantAutomaton]: CoverageRelationStatistics Valid=21, Invalid=51, Unknown=0, NotChecked=0, Total=72 [2018-04-13 07:40:37,594 INFO L87 Difference]: Start difference. First operand 57 states and 60 transitions. Second operand 9 states. [2018-04-13 07:40:37,679 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-04-13 07:40:37,679 INFO L93 Difference]: Finished difference Result 102 states and 106 transitions. [2018-04-13 07:40:37,681 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2018-04-13 07:40:37,681 INFO L78 Accepts]: Start accepts. Automaton has 9 states. Word has length 24 [2018-04-13 07:40:37,682 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-04-13 07:40:37,682 INFO L225 Difference]: With dead ends: 102 [2018-04-13 07:40:37,682 INFO L226 Difference]: Without dead ends: 102 [2018-04-13 07:40:37,683 INFO L567 BasicCegarLoop]: 0 DeclaredPredicates, 33 GetRequests, 22 SyntacticMatches, 1 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 10 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=41, Invalid=91, Unknown=0, NotChecked=0, Total=132 [2018-04-13 07:40:37,683 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 102 states. [2018-04-13 07:40:37,685 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 102 to 79. [2018-04-13 07:40:37,686 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 79 states. [2018-04-13 07:40:37,686 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 79 states to 79 states and 83 transitions. [2018-04-13 07:40:37,686 INFO L78 Accepts]: Start accepts. Automaton has 79 states and 83 transitions. Word has length 24 [2018-04-13 07:40:37,686 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-04-13 07:40:37,686 INFO L459 AbstractCegarLoop]: Abstraction has 79 states and 83 transitions. [2018-04-13 07:40:37,686 INFO L460 AbstractCegarLoop]: Interpolant automaton has 9 states. [2018-04-13 07:40:37,686 INFO L276 IsEmpty]: Start isEmpty. Operand 79 states and 83 transitions. [2018-04-13 07:40:37,687 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 28 [2018-04-13 07:40:37,687 INFO L347 BasicCegarLoop]: Found error trace [2018-04-13 07:40:37,687 INFO L355 BasicCegarLoop]: trace histogram [2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-04-13 07:40:37,687 INFO L408 AbstractCegarLoop]: === Iteration 7 === [mainErr1RequiresViolation, mainErr6AssertViolationMEMORY_FREE, mainErr4AssertViolationMEMORY_FREE, mainErr10AssertViolationMEMORY_FREE, mainErr11AssertViolationMEMORY_FREE, mainErr0RequiresViolation, mainErr12EnsuresViolationMEMORY_LEAK, mainErr3RequiresViolation, mainErr7AssertViolationMEMORY_FREE, mainErr9AssertViolationMEMORY_FREE, mainErr2RequiresViolation, mainErr8AssertViolationMEMORY_FREE, mainErr5AssertViolationMEMORY_FREE, __U_MULTI_f___________false_valid_deref_i__fooErr2RequiresViolation, __U_MULTI_f___________false_valid_deref_i__fooErr3RequiresViolation, __U_MULTI_f___________false_valid_deref_i__fooErr0RequiresViolation, __U_MULTI_f___________false_valid_deref_i__fooErr1RequiresViolation]=== [2018-04-13 07:40:37,687 INFO L82 PathProgramCache]: Analyzing trace with hash -2080802656, now seen corresponding path program 1 times [2018-04-13 07:40:37,687 INFO L213 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS_NO_ARRAY [2018-04-13 07:40:37,687 INFO L68 tionRefinementEngine]: Using refinement strategy SmtInterpolRefinementStrategy [2018-04-13 07:40:37,688 INFO L119 rtionOrderModulation]: Craig nested/tree interpolation forces the following order [2018-04-13 07:40:37,688 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-04-13 07:40:37,688 INFO L119 rtionOrderModulation]: Craig nested/tree interpolation forces the following order [2018-04-13 07:40:37,697 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-04-13 07:40:37,698 WARN L250 erpolLogProxyWrapper]: Using partial proofs (cut at CNF-level). Set option :produce-proofs to true to get complete proofs. [2018-04-13 07:40:37,702 INFO L431 seRefinementStrategy]: Interpolation failed due to KNOWN_IGNORE: Unknown lemma type! [2018-04-13 07:40:37,702 INFO L308 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2018-04-13 07:40:37,702 INFO L213 ckRefinementStrategy]: Switched to mode SMTINTERPOL_FP [2018-04-13 07:40:37,703 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-04-13 07:40:37,722 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-04-13 07:40:37,725 INFO L270 TraceCheckSpWp]: Computing forward predicates... [2018-04-13 07:40:37,740 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 8 treesize of output 7 [2018-04-13 07:40:37,740 INFO L267 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2018-04-13 07:40:37,747 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 6 treesize of output 5 [2018-04-13 07:40:37,748 INFO L267 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 1 xjuncts. [2018-04-13 07:40:37,755 INFO L267 ElimStorePlain]: Start of recursive call 1: 2 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-04-13 07:40:37,755 INFO L202 ElimStorePlain]: Needed 3 recursive calls to eliminate 2 variables, input treesize:21, output treesize:19 [2018-04-13 07:40:37,783 INFO L700 Elim1Store]: detected not equals via solver [2018-04-13 07:40:37,784 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 16 treesize of output 19 [2018-04-13 07:40:37,784 INFO L267 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2018-04-13 07:40:37,797 INFO L700 Elim1Store]: detected not equals via solver [2018-04-13 07:40:37,798 INFO L700 Elim1Store]: detected not equals via solver [2018-04-13 07:40:37,799 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 2 select indices, 2 select index equivalence classes, 2 disjoint index pairs (out of 1 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 11 treesize of output 4 [2018-04-13 07:40:37,799 INFO L267 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 1 xjuncts. [2018-04-13 07:40:37,805 INFO L267 ElimStorePlain]: Start of recursive call 1: 2 dim-0 vars, 2 dim-1 vars, End of recursive call: 2 dim-0 vars, and 1 xjuncts. [2018-04-13 07:40:37,806 INFO L202 ElimStorePlain]: Needed 3 recursive calls to eliminate 4 variables, input treesize:32, output treesize:25 [2018-04-13 07:40:37,876 INFO L134 CoverageAnalysis]: Checked inductivity of 6 backedges. 3 proven. 3 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-04-13 07:40:37,877 INFO L320 seRefinementStrategy]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2018-04-13 07:40:37,877 INFO L335 seRefinementStrategy]: Number of different interpolants: perfect sequences [] imperfect sequences [9] total 9 [2018-04-13 07:40:37,877 INFO L442 AbstractCegarLoop]: Interpolant automaton has 10 states [2018-04-13 07:40:37,877 INFO L132 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2018-04-13 07:40:37,877 INFO L133 InterpolantAutomaton]: CoverageRelationStatistics Valid=26, Invalid=64, Unknown=0, NotChecked=0, Total=90 [2018-04-13 07:40:37,878 INFO L87 Difference]: Start difference. First operand 79 states and 83 transitions. Second operand 10 states. [2018-04-13 07:40:38,202 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-04-13 07:40:38,202 INFO L93 Difference]: Finished difference Result 113 states and 117 transitions. [2018-04-13 07:40:38,202 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2018-04-13 07:40:38,202 INFO L78 Accepts]: Start accepts. Automaton has 10 states. Word has length 27 [2018-04-13 07:40:38,202 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-04-13 07:40:38,203 INFO L225 Difference]: With dead ends: 113 [2018-04-13 07:40:38,203 INFO L226 Difference]: Without dead ends: 113 [2018-04-13 07:40:38,203 INFO L567 BasicCegarLoop]: 0 DeclaredPredicates, 33 GetRequests, 18 SyntacticMatches, 0 SemanticMatches, 15 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 39 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=83, Invalid=189, Unknown=0, NotChecked=0, Total=272 [2018-04-13 07:40:38,204 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 113 states. [2018-04-13 07:40:38,208 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 113 to 85. [2018-04-13 07:40:38,208 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 85 states. [2018-04-13 07:40:38,209 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 85 states to 85 states and 89 transitions. [2018-04-13 07:40:38,209 INFO L78 Accepts]: Start accepts. Automaton has 85 states and 89 transitions. Word has length 27 [2018-04-13 07:40:38,209 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-04-13 07:40:38,209 INFO L459 AbstractCegarLoop]: Abstraction has 85 states and 89 transitions. [2018-04-13 07:40:38,209 INFO L460 AbstractCegarLoop]: Interpolant automaton has 10 states. [2018-04-13 07:40:38,209 INFO L276 IsEmpty]: Start isEmpty. Operand 85 states and 89 transitions. [2018-04-13 07:40:38,210 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 30 [2018-04-13 07:40:38,210 INFO L347 BasicCegarLoop]: Found error trace [2018-04-13 07:40:38,210 INFO L355 BasicCegarLoop]: trace histogram [2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-04-13 07:40:38,210 INFO L408 AbstractCegarLoop]: === Iteration 8 === [mainErr1RequiresViolation, mainErr6AssertViolationMEMORY_FREE, mainErr4AssertViolationMEMORY_FREE, mainErr10AssertViolationMEMORY_FREE, mainErr11AssertViolationMEMORY_FREE, mainErr0RequiresViolation, mainErr12EnsuresViolationMEMORY_LEAK, mainErr3RequiresViolation, mainErr7AssertViolationMEMORY_FREE, mainErr9AssertViolationMEMORY_FREE, mainErr2RequiresViolation, mainErr8AssertViolationMEMORY_FREE, mainErr5AssertViolationMEMORY_FREE, __U_MULTI_f___________false_valid_deref_i__fooErr2RequiresViolation, __U_MULTI_f___________false_valid_deref_i__fooErr3RequiresViolation, __U_MULTI_f___________false_valid_deref_i__fooErr0RequiresViolation, __U_MULTI_f___________false_valid_deref_i__fooErr1RequiresViolation]=== [2018-04-13 07:40:38,210 INFO L82 PathProgramCache]: Analyzing trace with hash -370249796, now seen corresponding path program 1 times [2018-04-13 07:40:38,211 INFO L213 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS_NO_ARRAY [2018-04-13 07:40:38,211 INFO L68 tionRefinementEngine]: Using refinement strategy SmtInterpolRefinementStrategy [2018-04-13 07:40:38,211 INFO L119 rtionOrderModulation]: Craig nested/tree interpolation forces the following order [2018-04-13 07:40:38,211 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-04-13 07:40:38,211 INFO L119 rtionOrderModulation]: Craig nested/tree interpolation forces the following order [2018-04-13 07:40:38,217 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-04-13 07:40:38,217 WARN L250 erpolLogProxyWrapper]: Using partial proofs (cut at CNF-level). Set option :produce-proofs to true to get complete proofs. [2018-04-13 07:40:38,234 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2018-04-13 07:40:38,234 INFO L320 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-04-13 07:40:38,234 INFO L335 seRefinementStrategy]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2018-04-13 07:40:38,234 INFO L442 AbstractCegarLoop]: Interpolant automaton has 4 states [2018-04-13 07:40:38,234 INFO L132 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2018-04-13 07:40:38,235 INFO L133 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2018-04-13 07:40:38,235 INFO L87 Difference]: Start difference. First operand 85 states and 89 transitions. Second operand 4 states. [2018-04-13 07:40:38,266 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-04-13 07:40:38,267 INFO L93 Difference]: Finished difference Result 83 states and 87 transitions. [2018-04-13 07:40:38,267 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2018-04-13 07:40:38,267 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 29 [2018-04-13 07:40:38,271 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-04-13 07:40:38,271 INFO L225 Difference]: With dead ends: 83 [2018-04-13 07:40:38,272 INFO L226 Difference]: Without dead ends: 83 [2018-04-13 07:40:38,272 INFO L567 BasicCegarLoop]: 0 DeclaredPredicates, 4 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2018-04-13 07:40:38,272 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 83 states. [2018-04-13 07:40:38,275 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 83 to 83. [2018-04-13 07:40:38,276 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 83 states. [2018-04-13 07:40:38,276 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 83 states to 83 states and 87 transitions. [2018-04-13 07:40:38,276 INFO L78 Accepts]: Start accepts. Automaton has 83 states and 87 transitions. Word has length 29 [2018-04-13 07:40:38,277 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-04-13 07:40:38,277 INFO L459 AbstractCegarLoop]: Abstraction has 83 states and 87 transitions. [2018-04-13 07:40:38,277 INFO L460 AbstractCegarLoop]: Interpolant automaton has 4 states. [2018-04-13 07:40:38,277 INFO L276 IsEmpty]: Start isEmpty. Operand 83 states and 87 transitions. [2018-04-13 07:40:38,277 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 30 [2018-04-13 07:40:38,278 INFO L347 BasicCegarLoop]: Found error trace [2018-04-13 07:40:38,278 INFO L355 BasicCegarLoop]: trace histogram [2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-04-13 07:40:38,278 INFO L408 AbstractCegarLoop]: === Iteration 9 === [mainErr1RequiresViolation, mainErr6AssertViolationMEMORY_FREE, mainErr4AssertViolationMEMORY_FREE, mainErr10AssertViolationMEMORY_FREE, mainErr11AssertViolationMEMORY_FREE, mainErr0RequiresViolation, mainErr12EnsuresViolationMEMORY_LEAK, mainErr3RequiresViolation, mainErr7AssertViolationMEMORY_FREE, mainErr9AssertViolationMEMORY_FREE, mainErr2RequiresViolation, mainErr8AssertViolationMEMORY_FREE, mainErr5AssertViolationMEMORY_FREE, __U_MULTI_f___________false_valid_deref_i__fooErr2RequiresViolation, __U_MULTI_f___________false_valid_deref_i__fooErr3RequiresViolation, __U_MULTI_f___________false_valid_deref_i__fooErr0RequiresViolation, __U_MULTI_f___________false_valid_deref_i__fooErr1RequiresViolation]=== [2018-04-13 07:40:38,278 INFO L82 PathProgramCache]: Analyzing trace with hash -370249795, now seen corresponding path program 1 times [2018-04-13 07:40:38,278 INFO L213 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS_NO_ARRAY [2018-04-13 07:40:38,278 INFO L68 tionRefinementEngine]: Using refinement strategy SmtInterpolRefinementStrategy [2018-04-13 07:40:38,279 INFO L119 rtionOrderModulation]: Craig nested/tree interpolation forces the following order [2018-04-13 07:40:38,279 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-04-13 07:40:38,279 INFO L119 rtionOrderModulation]: Craig nested/tree interpolation forces the following order [2018-04-13 07:40:38,287 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2018-04-13 07:40:38,295 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2018-04-13 07:40:38,312 INFO L421 BasicCegarLoop]: Counterexample might be feasible [2018-04-13 07:40:38,341 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 13.04 07:40:38 BoogieIcfgContainer [2018-04-13 07:40:38,341 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2018-04-13 07:40:38,342 INFO L168 Benchmark]: Toolchain (without parser) took 2598.37 ms. Allocated memory was 403.2 MB in the beginning and 617.1 MB in the end (delta: 213.9 MB). Free memory was 338.7 MB in the beginning and 504.6 MB in the end (delta: -165.8 MB). Peak memory consumption was 48.1 MB. Max. memory is 5.3 GB. [2018-04-13 07:40:38,343 INFO L168 Benchmark]: CDTParser took 0.19 ms. Allocated memory is still 403.2 MB. Free memory is still 364.5 MB. There was no memory consumed. Max. memory is 5.3 GB. [2018-04-13 07:40:38,343 INFO L168 Benchmark]: CACSL2BoogieTranslator took 225.88 ms. Allocated memory is still 403.2 MB. Free memory was 338.7 MB in the beginning and 314.8 MB in the end (delta: 24.0 MB). Peak memory consumption was 24.0 MB. Max. memory is 5.3 GB. [2018-04-13 07:40:38,344 INFO L168 Benchmark]: Boogie Preprocessor took 37.01 ms. Allocated memory is still 403.2 MB. Free memory was 314.8 MB in the beginning and 312.1 MB in the end (delta: 2.6 MB). Peak memory consumption was 2.6 MB. Max. memory is 5.3 GB. [2018-04-13 07:40:38,344 INFO L168 Benchmark]: RCFGBuilder took 318.54 ms. Allocated memory was 403.2 MB in the beginning and 590.3 MB in the end (delta: 187.2 MB). Free memory was 312.1 MB in the beginning and 525.4 MB in the end (delta: -213.3 MB). Peak memory consumption was 24.3 MB. Max. memory is 5.3 GB. [2018-04-13 07:40:38,345 INFO L168 Benchmark]: TraceAbstraction took 2014.26 ms. Allocated memory was 590.3 MB in the beginning and 617.1 MB in the end (delta: 26.7 MB). Free memory was 525.4 MB in the beginning and 504.6 MB in the end (delta: 20.8 MB). Peak memory consumption was 47.6 MB. Max. memory is 5.3 GB. [2018-04-13 07:40:38,347 INFO L344 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.19 ms. Allocated memory is still 403.2 MB. Free memory is still 364.5 MB. There was no memory consumed. Max. memory is 5.3 GB. * CACSL2BoogieTranslator took 225.88 ms. Allocated memory is still 403.2 MB. Free memory was 338.7 MB in the beginning and 314.8 MB in the end (delta: 24.0 MB). Peak memory consumption was 24.0 MB. Max. memory is 5.3 GB. * Boogie Preprocessor took 37.01 ms. Allocated memory is still 403.2 MB. Free memory was 314.8 MB in the beginning and 312.1 MB in the end (delta: 2.6 MB). Peak memory consumption was 2.6 MB. Max. memory is 5.3 GB. * RCFGBuilder took 318.54 ms. Allocated memory was 403.2 MB in the beginning and 590.3 MB in the end (delta: 187.2 MB). Free memory was 312.1 MB in the beginning and 525.4 MB in the end (delta: -213.3 MB). Peak memory consumption was 24.3 MB. Max. memory is 5.3 GB. * TraceAbstraction took 2014.26 ms. Allocated memory was 590.3 MB in the beginning and 617.1 MB in the end (delta: 26.7 MB). Free memory was 525.4 MB in the beginning and 504.6 MB in the end (delta: 20.8 MB). Peak memory consumption was 47.6 MB. Max. memory is 5.3 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - CounterExampleResult [Line: 640]: pointer dereference may fail pointer dereference may fail We found a FailurePath: [L619] int *a, *b; [L619] int *a, *b; [L620] int n; VAL [\old(a)=9, \old(a)=12, \old(a)=5, \old(a)=11, \old(n)=8, a={0:0}, a={0:0}, n=0] [L632] n = 1 VAL [\old(a)=0, \old(a)=0, \old(a)=0, \old(a)=0, \old(n)=0, a={0:0}, a={0:0}, n=1] [L633] COND FALSE !(__VERIFIER_nondet_int() && n < 30) [L636] EXPR, FCALL malloc(n * sizeof(*a)) VAL [\old(a)=0, \old(a)=0, \old(a)=0, \old(a)=0, \old(n)=0, a={0:0}, a={0:0}, malloc(n * sizeof(*a))={7:0}, n=1] [L636] a = malloc(n * sizeof(*a)) VAL [\old(a)=0, \old(a)=0, \old(a)=0, \old(a)=0, \old(n)=0, a={0:0}, a={7:0}, malloc(n * sizeof(*a))={7:0}, n=1] [L637] EXPR, FCALL malloc(n * sizeof(*b)) VAL [\old(a)=0, \old(a)=0, \old(a)=0, \old(a)=0, \old(n)=0, a={7:0}, a={0:0}, malloc(n * sizeof(*a))={7:0}, malloc(n * sizeof(*b))={10:0}, n=1] [L637] b = malloc(n * sizeof(*b)) [L638] EXPR b++ [L638] EXPR b++ VAL [\old(a)=0, \old(a)=0, \old(a)=0, \old(a)=0, \old(n)=0, a={10:4}, a={7:0}, b++={10:0}, malloc(n * sizeof(*a))={7:0}, malloc(n * sizeof(*b))={10:0}, n=1] [L638] FCALL *b++ = 0 VAL [\old(a)=0, \old(a)=0, \old(a)=0, \old(a)=0, \old(n)=0, a={7:0}, a={10:4}, b++={10:0}, malloc(n * sizeof(*a))={7:0}, malloc(n * sizeof(*b))={10:0}, n=1] [L639] CALL foo() VAL [\old(a)=0, \old(a)=0, \old(a)=0, \old(a)=0, \old(n)=0, a={10:4}, a={7:0}, n=1] [L624] int i; [L625] i = 0 VAL [\old(a)=0, \old(a)=0, \old(a)=0, \old(a)=0, \old(n)=0, a={10:4}, a={7:0}, i=0, n=1] [L625] COND TRUE i < n VAL [\old(a)=0, \old(a)=0, \old(a)=0, \old(a)=0, \old(n)=0, a={7:0}, a={10:4}, i=0, n=1] [L626] FCALL a[i] = n VAL [\old(a)=0, \old(a)=0, \old(a)=0, \old(a)=0, \old(n)=0, a={7:0}, a={10:4}, i=0, n=1] [L625] i++ [L625] i++ [L625] COND FALSE !(i < n) VAL [\old(a)=0, \old(a)=0, \old(a)=0, \old(a)=0, \old(n)=0, a={10:4}, a={7:0}, i=1, n=1] [L627] i = 0 VAL [\old(a)=0, \old(a)=0, \old(a)=0, \old(a)=0, \old(n)=0, a={10:4}, a={7:0}, i=0, n=1] [L627] COND FALSE, RET !(i < n - 1) VAL [\old(a)=0, \old(a)=0, \old(a)=0, \old(a)=0, \old(n)=0, a={10:4}, a={7:0}, i=0, n=1] [L639] foo() VAL [\old(a)=0, \old(a)=0, \old(a)=0, \old(a)=0, \old(n)=0, a={10:4}, a={7:0}, malloc(n * sizeof(*a))={7:0}, malloc(n * sizeof(*b))={10:0}, n=1] [L640] FCALL b[-2] - StatisticsResult: Ultimate Automizer benchmark data CFG has 4 procedures, 64 locations, 17 error locations. UNSAFE Result, 1.9s OverallTime, 9 OverallIterations, 2 TraceHistogramMax, 0.9s AutomataDifference, 0.0s DeadEndRemovalTime, 0.0s HoareAnnotationTime, HoareTripleCheckerStatistics: 398 SDtfs, 649 SDslu, 569 SDs, 0 SdLazy, 588 SolverSat, 80 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 0.4s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 127 GetRequests, 75 SyntacticMatches, 1 SemanticMatches, 51 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 63 ImplicationChecksByTransitivity, 0.5s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=85occurred in iteration=7, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s AbstIntTime, 0 AbstIntIterations, 0 AbstIntStrong, NaN AbsIntWeakeningRatio, NaN AbsIntAvgWeakeningVarsNumRemoved, NaN AbsIntAvgWeakenedConjuncts, 0.0s DumpTime, AutomataMinimizationStatistics: 0.0s AutomataMinimizationTime, 8 MinimizatonAttempts, 60 StatesRemovedByMinimization, 3 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TraceCheckStatistics: 0.0s SsaConstructionTime, 0.1s SatisfiabilityAnalysisTime, 0.5s InterpolantComputationTime, 280 NumberOfCodeBlocks, 280 NumberOfCodeBlocksAsserted, 13 NumberOfCheckSat, 175 ConstructedInterpolants, 28 QuantifiedInterpolants, 26705 SizeOfPredicates, 12 NumberOfNonLiveVariables, 517 ConjunctsInSsa, 42 ConjunctsInUnsatCore, 9 InterpolantComputations, 7 PerfectInterpolantSequences, 9/14 InterpolantCoveringCapability, InvariantSynthesisStatistics: No data available, InterpolantConsolidationStatistics: No data available, ReuseStatistics: No data available RESULT: Ultimate proved your program to be incorrect! Written .csv to /home/ultimate/work/ultimate/releaseScripts/default/UAutomizer-linux/../../../releaseScripts/default/UAutomizer-linux/csv/960521-1_1_false-valid-deref.i_svcomp-DerefFreeMemtrack-32bit-Automizer_SmtInterpol_NoArray.epf_AutomizerC.xml/Csv-Benchmark-0-2018-04-13_07-40-38-354.csv Written .csv to /home/ultimate/work/ultimate/releaseScripts/default/UAutomizer-linux/../../../releaseScripts/default/UAutomizer-linux/csv/960521-1_1_false-valid-deref.i_svcomp-DerefFreeMemtrack-32bit-Automizer_SmtInterpol_NoArray.epf_AutomizerC.xml/Csv-TraceAbstractionBenchmarks-0-2018-04-13_07-40-38-354.csv Received shutdown request...