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-free.i -------------------------------------------------------------------------------- This is Ultimate 0.1.23-666feb3-m [2018-04-11 16:15:17,133 INFO L170 SettingsManager]: Resetting all preferences to default values... [2018-04-11 16:15:17,135 INFO L174 SettingsManager]: Resetting UltimateCore preferences to default values [2018-04-11 16:15:17,147 INFO L177 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2018-04-11 16:15:17,147 INFO L174 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2018-04-11 16:15:17,147 INFO L174 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2018-04-11 16:15:17,148 INFO L174 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2018-04-11 16:15:17,150 INFO L174 SettingsManager]: Resetting LassoRanker preferences to default values [2018-04-11 16:15:17,151 INFO L174 SettingsManager]: Resetting Reaching Definitions preferences to default values [2018-04-11 16:15:17,152 INFO L174 SettingsManager]: Resetting SyntaxChecker preferences to default values [2018-04-11 16:15:17,153 INFO L177 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2018-04-11 16:15:17,153 INFO L174 SettingsManager]: Resetting LTL2Aut preferences to default values [2018-04-11 16:15:17,154 INFO L174 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2018-04-11 16:15:17,155 INFO L174 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2018-04-11 16:15:17,156 INFO L174 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2018-04-11 16:15:17,157 INFO L174 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2018-04-11 16:15:17,159 INFO L174 SettingsManager]: Resetting CodeCheck preferences to default values [2018-04-11 16:15:17,160 INFO L174 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2018-04-11 16:15:17,161 INFO L174 SettingsManager]: Resetting RCFGBuilder preferences to default values [2018-04-11 16:15:17,162 INFO L174 SettingsManager]: Resetting TraceAbstraction preferences to default values [2018-04-11 16:15:17,164 INFO L177 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2018-04-11 16:15:17,164 INFO L177 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2018-04-11 16:15:17,164 INFO L174 SettingsManager]: Resetting IcfgTransformer preferences to default values [2018-04-11 16:15:17,165 INFO L174 SettingsManager]: Resetting Boogie Printer preferences to default values [2018-04-11 16:15:17,166 INFO L174 SettingsManager]: Resetting Witness Printer preferences to default values [2018-04-11 16:15:17,167 INFO L177 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2018-04-11 16:15:17,167 INFO L174 SettingsManager]: Resetting CDTParser preferences to default values [2018-04-11 16:15:17,168 INFO L174 SettingsManager]: Resetting PEA to Boogie preferences to default values [2018-04-11 16:15:17,168 INFO L177 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2018-04-11 16:15:17,168 INFO L174 SettingsManager]: Resetting Witness Parser preferences to default values [2018-04-11 16:15:17,169 INFO L181 SettingsManager]: Finished resetting all preferences to default values... [2018-04-11 16:15:17,169 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 [2018-04-11 16:15:17,190 INFO L110 SettingsManager]: Loading preferences was successful [2018-04-11 16:15:17,190 INFO L112 SettingsManager]: Preferences different from defaults after loading the file: [2018-04-11 16:15:17,191 INFO L131 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2018-04-11 16:15:17,191 INFO L133 SettingsManager]: * Create parallel compositions if possible=false [2018-04-11 16:15:17,191 INFO L133 SettingsManager]: * Use SBE=true [2018-04-11 16:15:17,191 INFO L131 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2018-04-11 16:15:17,191 INFO L133 SettingsManager]: * sizeof long=4 [2018-04-11 16:15:17,192 INFO L133 SettingsManager]: * Check unreachability of error function in SV-COMP mode=false [2018-04-11 16:15:17,192 INFO L133 SettingsManager]: * Overapproximate operations on floating types=true [2018-04-11 16:15:17,192 INFO L133 SettingsManager]: * sizeof POINTER=4 [2018-04-11 16:15:17,192 INFO L133 SettingsManager]: * Check division by zero=IGNORE [2018-04-11 16:15:17,192 INFO L133 SettingsManager]: * Check for the main procedure if all allocated memory was freed=true [2018-04-11 16:15:17,192 INFO L133 SettingsManager]: * Bitprecise bitfields=true [2018-04-11 16:15:17,192 INFO L133 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2018-04-11 16:15:17,192 INFO L133 SettingsManager]: * sizeof long double=12 [2018-04-11 16:15:17,192 INFO L131 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2018-04-11 16:15:17,192 INFO L133 SettingsManager]: * Size of a code block=SequenceOfStatements [2018-04-11 16:15:17,192 INFO L133 SettingsManager]: * To the following directory=./dump/ [2018-04-11 16:15:17,193 INFO L133 SettingsManager]: * SMT solver=External_DefaultMode [2018-04-11 16:15:17,193 INFO L133 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2018-04-11 16:15:17,193 INFO L131 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2018-04-11 16:15:17,193 INFO L133 SettingsManager]: * Interpolant automaton=TWOTRACK [2018-04-11 16:15:17,193 INFO L133 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2018-04-11 16:15:17,193 INFO L133 SettingsManager]: * Trace refinement strategy=SMTINTERPOL Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Bitprecise bitfields -> false [2018-04-11 16:15:17,222 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2018-04-11 16:15:17,243 INFO L266 ainManager$Toolchain]: [Toolchain 1]: Parser(s) successfully (re)initialized [2018-04-11 16:15:17,246 INFO L222 ainManager$Toolchain]: [Toolchain 1]: Toolchain data selected. [2018-04-11 16:15:17,247 INFO L271 PluginConnector]: Initializing CDTParser... [2018-04-11 16:15:17,248 INFO L276 PluginConnector]: CDTParser initialized [2018-04-11 16:15:17,248 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-free.i [2018-04-11 16:15:17,537 INFO L225 CDTParser]: Created temporary CDT project at /home/ultimate/work/ultimate/releaseScripts/default/UAutomizer-linux/data/FLAGc83c4816c [2018-04-11 16:15:17,739 INFO L287 CDTParser]: IsIndexed: true [2018-04-11 16:15:17,739 INFO L288 CDTParser]: Found 1 translation units. [2018-04-11 16:15:17,739 INFO L168 CDTParser]: Scanning 960521-1_1_false-valid-free.i [2018-04-11 16:15:17,748 INFO L210 ultiparseSymbolTable]: Include resolver: [2018-04-11 16:15:17,748 INFO L215 ultiparseSymbolTable]: [2018-04-11 16:15:17,748 INFO L218 ultiparseSymbolTable]: Function table: [2018-04-11 16:15:17,748 INFO L221 ultiparseSymbolTable]: Function definition of __U_MULTI_f___________false_valid_free_i__foo ('foo') in 960521-1_1_false-valid-free.i [2018-04-11 16:15:17,749 INFO L221 ultiparseSymbolTable]: Function definition of null ('main') in 960521-1_1_false-valid-free.i [2018-04-11 16:15:17,749 INFO L227 ultiparseSymbolTable]: Global variable table: [2018-04-11 16:15:17,749 INFO L230 ultiparseSymbolTable]: Global variable declaration of __U_MULTI_f___________false_valid_free_i____pthread_list_t in 960521-1_1_false-valid-free.i [2018-04-11 16:15:17,749 INFO L230 ultiparseSymbolTable]: Global variable declaration of __U_MULTI_f___________false_valid_free_i__pthread_barrierattr_t in 960521-1_1_false-valid-free.i [2018-04-11 16:15:17,749 INFO L230 ultiparseSymbolTable]: Global variable declaration of __U_MULTI_f___________false_valid_free_i__sigset_t in 960521-1_1_false-valid-free.i [2018-04-11 16:15:17,749 INFO L230 ultiparseSymbolTable]: Global variable declaration of __U_MULTI_f___________false_valid_free_i____caddr_t in 960521-1_1_false-valid-free.i [2018-04-11 16:15:17,749 INFO L230 ultiparseSymbolTable]: Global variable declaration of __U_MULTI_f___________false_valid_free_i____u_long in 960521-1_1_false-valid-free.i [2018-04-11 16:15:17,749 INFO L230 ultiparseSymbolTable]: Global variable declaration of __U_MULTI_f___________false_valid_free_i____dev_t in 960521-1_1_false-valid-free.i [2018-04-11 16:15:17,749 INFO L230 ultiparseSymbolTable]: Global variable declaration of __U_MULTI_f___________false_valid_free_i____fsblkcnt_t in 960521-1_1_false-valid-free.i [2018-04-11 16:15:17,749 INFO L230 ultiparseSymbolTable]: Global variable declaration of __U_MULTI_f___________false_valid_free_i__int16_t in 960521-1_1_false-valid-free.i [2018-04-11 16:15:17,749 INFO L230 ultiparseSymbolTable]: Global variable declaration of __U_MULTI_f___________false_valid_free_i__blkcnt_t in 960521-1_1_false-valid-free.i [2018-04-11 16:15:17,749 INFO L230 ultiparseSymbolTable]: Global variable declaration of __U_MULTI_f___________false_valid_free_i__pthread_key_t in 960521-1_1_false-valid-free.i [2018-04-11 16:15:17,749 INFO L230 ultiparseSymbolTable]: Global variable declaration of __U_MULTI_f___________false_valid_free_i__u_char in 960521-1_1_false-valid-free.i [2018-04-11 16:15:17,749 INFO L230 ultiparseSymbolTable]: Global variable declaration of __U_MULTI_f___________false_valid_free_i__u_int32_t in 960521-1_1_false-valid-free.i [2018-04-11 16:15:17,749 INFO L230 ultiparseSymbolTable]: Global variable declaration of __U_MULTI_f___________false_valid_free_i__pthread_rwlock_t in 960521-1_1_false-valid-free.i [2018-04-11 16:15:17,749 INFO L230 ultiparseSymbolTable]: Global variable declaration of __U_MULTI_f___________false_valid_free_i__clock_t in 960521-1_1_false-valid-free.i [2018-04-11 16:15:17,749 INFO L230 ultiparseSymbolTable]: Global variable declaration of __U_MULTI_f___________false_valid_free_i____off_t in 960521-1_1_false-valid-free.i [2018-04-11 16:15:17,749 INFO L230 ultiparseSymbolTable]: Global variable declaration of __U_MULTI_f___________false_valid_free_i__blksize_t in 960521-1_1_false-valid-free.i [2018-04-11 16:15:17,749 INFO L230 ultiparseSymbolTable]: Global variable declaration of __U_MULTI_f___________false_valid_free_i__pthread_rwlockattr_t in 960521-1_1_false-valid-free.i [2018-04-11 16:15:17,750 INFO L230 ultiparseSymbolTable]: Global variable declaration of __U_MULTI_f___________false_valid_free_i____int16_t in 960521-1_1_false-valid-free.i [2018-04-11 16:15:17,750 INFO L230 ultiparseSymbolTable]: Global variable declaration of __U_MULTI_f___________false_valid_free_i____uint32_t in 960521-1_1_false-valid-free.i [2018-04-11 16:15:17,750 INFO L230 ultiparseSymbolTable]: Global variable declaration of __U_MULTI_f___________false_valid_free_i__fd_set in 960521-1_1_false-valid-free.i [2018-04-11 16:15:17,750 INFO L230 ultiparseSymbolTable]: Global variable declaration of __U_MULTI_f___________false_valid_free_i__u_long in 960521-1_1_false-valid-free.i [2018-04-11 16:15:17,750 INFO L230 ultiparseSymbolTable]: Global variable declaration of __U_MULTI_f___________false_valid_free_i____ino_t in 960521-1_1_false-valid-free.i [2018-04-11 16:15:17,750 INFO L230 ultiparseSymbolTable]: Global variable declaration of __U_MULTI_f___________false_valid_free_i__ulong in 960521-1_1_false-valid-free.i [2018-04-11 16:15:17,750 INFO L230 ultiparseSymbolTable]: Global variable declaration of __U_MULTI_f___________false_valid_free_i__caddr_t in 960521-1_1_false-valid-free.i [2018-04-11 16:15:17,750 INFO L230 ultiparseSymbolTable]: Global variable declaration of __U_MULTI_f___________false_valid_free_i____fsid_t in 960521-1_1_false-valid-free.i [2018-04-11 16:15:17,750 INFO L230 ultiparseSymbolTable]: Global variable declaration of __U_MULTI_f___________false_valid_free_i____ino64_t in 960521-1_1_false-valid-free.i [2018-04-11 16:15:17,750 INFO L230 ultiparseSymbolTable]: Global variable declaration of __U_MULTI_f___________false_valid_free_i____sigset_t in 960521-1_1_false-valid-free.i [2018-04-11 16:15:17,750 INFO L230 ultiparseSymbolTable]: Global variable declaration of __U_MULTI_f___________false_valid_free_i__pthread_cond_t in 960521-1_1_false-valid-free.i [2018-04-11 16:15:17,750 INFO L230 ultiparseSymbolTable]: Global variable declaration of __U_MULTI_f___________false_valid_free_i__u_int in 960521-1_1_false-valid-free.i [2018-04-11 16:15:17,750 INFO L230 ultiparseSymbolTable]: Global variable declaration of __U_MULTI_f___________false_valid_free_i__key_t in 960521-1_1_false-valid-free.i [2018-04-11 16:15:17,750 INFO L230 ultiparseSymbolTable]: Global variable declaration of __U_MULTI_f___________false_valid_free_i__fd_mask in 960521-1_1_false-valid-free.i [2018-04-11 16:15:17,750 INFO L230 ultiparseSymbolTable]: Global variable declaration of __U_MULTI_f___________false_valid_free_i__pthread_spinlock_t in 960521-1_1_false-valid-free.i [2018-04-11 16:15:17,750 INFO L230 ultiparseSymbolTable]: Global variable declaration of __U_MULTI_f___________false_valid_free_i____rlim_t in 960521-1_1_false-valid-free.i [2018-04-11 16:15:17,751 INFO L230 ultiparseSymbolTable]: Global variable declaration of __U_MULTI_f___________false_valid_free_i____timer_t in 960521-1_1_false-valid-free.i [2018-04-11 16:15:17,751 INFO L230 ultiparseSymbolTable]: Global variable declaration of __U_MULTI_f___________false_valid_free_i__div_t in 960521-1_1_false-valid-free.i [2018-04-11 16:15:17,751 INFO L230 ultiparseSymbolTable]: Global variable declaration of __U_MULTI_f___________false_valid_free_i__size_t in 960521-1_1_false-valid-free.i [2018-04-11 16:15:17,751 INFO L230 ultiparseSymbolTable]: Global variable declaration of __U_MULTI_f___________false_valid_free_i____int32_t in 960521-1_1_false-valid-free.i [2018-04-11 16:15:17,751 INFO L230 ultiparseSymbolTable]: Global variable declaration of __U_MULTI_f___________false_valid_free_i____intptr_t in 960521-1_1_false-valid-free.i [2018-04-11 16:15:17,751 INFO L230 ultiparseSymbolTable]: Global variable declaration of __U_MULTI_f___________false_valid_free_i__u_int16_t in 960521-1_1_false-valid-free.i [2018-04-11 16:15:17,751 INFO L230 ultiparseSymbolTable]: Global variable declaration of __U_MULTI_f___________false_valid_free_i____ssize_t in 960521-1_1_false-valid-free.i [2018-04-11 16:15:17,751 INFO L230 ultiparseSymbolTable]: Global variable declaration of __U_MULTI_f___________false_valid_free_i__u_int8_t in 960521-1_1_false-valid-free.i [2018-04-11 16:15:17,751 INFO L230 ultiparseSymbolTable]: Global variable declaration of __U_MULTI_f___________false_valid_free_i____clockid_t in 960521-1_1_false-valid-free.i [2018-04-11 16:15:17,751 INFO L230 ultiparseSymbolTable]: Global variable declaration of __U_MULTI_f___________false_valid_free_i__clockid_t in 960521-1_1_false-valid-free.i [2018-04-11 16:15:17,751 INFO L230 ultiparseSymbolTable]: Global variable declaration of __U_MULTI_f___________false_valid_free_i__quad_t in 960521-1_1_false-valid-free.i [2018-04-11 16:15:17,752 INFO L230 ultiparseSymbolTable]: Global variable declaration of __U_MULTI_f___________false_valid_free_i__uid_t in 960521-1_1_false-valid-free.i [2018-04-11 16:15:17,752 INFO L230 ultiparseSymbolTable]: Global variable declaration of __U_MULTI_f___________false_valid_free_i__lldiv_t in 960521-1_1_false-valid-free.i [2018-04-11 16:15:17,752 INFO L230 ultiparseSymbolTable]: Global variable declaration of __U_MULTI_f___________false_valid_free_i____id_t in 960521-1_1_false-valid-free.i [2018-04-11 16:15:17,752 INFO L230 ultiparseSymbolTable]: Global variable declaration of __U_MULTI_f___________false_valid_free_i____socklen_t in 960521-1_1_false-valid-free.i [2018-04-11 16:15:17,752 INFO L230 ultiparseSymbolTable]: Global variable declaration of __U_MULTI_f___________false_valid_free_i__pthread_t in 960521-1_1_false-valid-free.i [2018-04-11 16:15:17,752 INFO L230 ultiparseSymbolTable]: Global variable declaration of __U_MULTI_f___________false_valid_free_i__fsblkcnt_t in 960521-1_1_false-valid-free.i [2018-04-11 16:15:17,752 INFO L230 ultiparseSymbolTable]: Global variable declaration of __U_MULTI_f___________false_valid_free_i____gid_t in 960521-1_1_false-valid-free.i [2018-04-11 16:15:17,752 INFO L230 ultiparseSymbolTable]: Global variable declaration of __U_MULTI_f___________false_valid_free_i__wchar_t in 960521-1_1_false-valid-free.i [2018-04-11 16:15:17,752 INFO L230 ultiparseSymbolTable]: Global variable declaration of __U_MULTI_f___________false_valid_free_i____u_quad_t in 960521-1_1_false-valid-free.i [2018-04-11 16:15:17,752 INFO L230 ultiparseSymbolTable]: Global variable declaration of __U_MULTI_f___________false_valid_free_i____off64_t in 960521-1_1_false-valid-free.i [2018-04-11 16:15:17,752 INFO L230 ultiparseSymbolTable]: Global variable declaration of __U_MULTI_f___________false_valid_free_i__pthread_barrier_t in 960521-1_1_false-valid-free.i [2018-04-11 16:15:17,753 INFO L230 ultiparseSymbolTable]: Global variable declaration of __U_MULTI_f___________false_valid_free_i____pid_t in 960521-1_1_false-valid-free.i [2018-04-11 16:15:17,753 INFO L230 ultiparseSymbolTable]: Global variable declaration of __U_MULTI_f___________false_valid_free_i__pthread_mutexattr_t in 960521-1_1_false-valid-free.i [2018-04-11 16:15:17,753 INFO L230 ultiparseSymbolTable]: Global variable declaration of __U_MULTI_f___________false_valid_free_i____u_char in 960521-1_1_false-valid-free.i [2018-04-11 16:15:17,753 INFO L230 ultiparseSymbolTable]: Global variable declaration of __U_MULTI_f___________false_valid_free_i____suseconds_t in 960521-1_1_false-valid-free.i [2018-04-11 16:15:17,753 INFO L230 ultiparseSymbolTable]: Global variable declaration of __U_MULTI_f___________false_valid_free_i____quad_t in 960521-1_1_false-valid-free.i [2018-04-11 16:15:17,753 INFO L230 ultiparseSymbolTable]: Global variable declaration of __U_MULTI_f___________false_valid_free_i____fsblkcnt64_t in 960521-1_1_false-valid-free.i [2018-04-11 16:15:17,753 INFO L230 ultiparseSymbolTable]: Global variable declaration of __U_MULTI_f___________false_valid_free_i__ssize_t in 960521-1_1_false-valid-free.i [2018-04-11 16:15:17,753 INFO L230 ultiparseSymbolTable]: Global variable declaration of __U_MULTI_f___________false_valid_free_i__register_t in 960521-1_1_false-valid-free.i [2018-04-11 16:15:17,753 INFO L230 ultiparseSymbolTable]: Global variable declaration of __U_MULTI_f___________false_valid_free_i__pthread_once_t in 960521-1_1_false-valid-free.i [2018-04-11 16:15:17,753 INFO L230 ultiparseSymbolTable]: Global variable declaration of __U_MULTI_f___________false_valid_free_i____uint64_t in 960521-1_1_false-valid-free.i [2018-04-11 16:15:17,753 INFO L230 ultiparseSymbolTable]: Global variable declaration of __U_MULTI_f___________false_valid_free_i____swblk_t in 960521-1_1_false-valid-free.i [2018-04-11 16:15:17,754 INFO L230 ultiparseSymbolTable]: Global variable declaration of __U_MULTI_f___________false_valid_free_i____sig_atomic_t in 960521-1_1_false-valid-free.i [2018-04-11 16:15:17,754 INFO L230 ultiparseSymbolTable]: Global variable declaration of __U_MULTI_f___________false_valid_free_i__pthread_attr_t in 960521-1_1_false-valid-free.i [2018-04-11 16:15:17,754 INFO L230 ultiparseSymbolTable]: Global variable declaration of __U_MULTI_f___________false_valid_free_i____nlink_t in 960521-1_1_false-valid-free.i [2018-04-11 16:15:17,754 INFO L230 ultiparseSymbolTable]: Global variable declaration of __U_MULTI_f___________false_valid_free_i__timer_t in 960521-1_1_false-valid-free.i [2018-04-11 16:15:17,754 INFO L230 ultiparseSymbolTable]: Global variable declaration of __U_MULTI_f___________false_valid_free_i____fd_mask in 960521-1_1_false-valid-free.i [2018-04-11 16:15:17,754 INFO L230 ultiparseSymbolTable]: Global variable declaration of __U_MULTI_f___________false_valid_free_i__off_t in 960521-1_1_false-valid-free.i [2018-04-11 16:15:17,754 INFO L230 ultiparseSymbolTable]: Global variable declaration of __U_MULTI_f___________false_valid_free_i____int8_t in 960521-1_1_false-valid-free.i [2018-04-11 16:15:17,754 INFO L230 ultiparseSymbolTable]: Global variable declaration of __U_MULTI_f___________false_valid_free_i__uint in 960521-1_1_false-valid-free.i [2018-04-11 16:15:17,754 INFO L230 ultiparseSymbolTable]: Global variable declaration of __U_MULTI_f___________false_valid_free_i__pid_t in 960521-1_1_false-valid-free.i [2018-04-11 16:15:17,754 INFO L230 ultiparseSymbolTable]: Global variable declaration of __U_MULTI_f___________false_valid_free_i__int32_t in 960521-1_1_false-valid-free.i [2018-04-11 16:15:17,754 INFO L230 ultiparseSymbolTable]: Global variable declaration of __U_MULTI_f___________false_valid_free_i____mode_t in 960521-1_1_false-valid-free.i [2018-04-11 16:15:17,755 INFO L230 ultiparseSymbolTable]: Global variable declaration of __U_MULTI_f___________false_valid_free_i__dev_t in 960521-1_1_false-valid-free.i [2018-04-11 16:15:17,755 INFO L230 ultiparseSymbolTable]: Global variable declaration of __U_MULTI_f___________false_valid_free_i__fsfilcnt_t in 960521-1_1_false-valid-free.i [2018-04-11 16:15:17,755 INFO L230 ultiparseSymbolTable]: Global variable declaration of __U_MULTI_f___________false_valid_free_i____blkcnt64_t in 960521-1_1_false-valid-free.i [2018-04-11 16:15:17,755 INFO L230 ultiparseSymbolTable]: Global variable declaration of __U_MULTI_f___________false_valid_free_i__id_t in 960521-1_1_false-valid-free.i [2018-04-11 16:15:17,755 INFO L230 ultiparseSymbolTable]: Global variable declaration of __U_MULTI_f___________false_valid_free_i____uid_t in 960521-1_1_false-valid-free.i [2018-04-11 16:15:17,755 INFO L230 ultiparseSymbolTable]: Global variable declaration of __U_MULTI_f___________false_valid_free_i__gid_t in 960521-1_1_false-valid-free.i [2018-04-11 16:15:17,755 INFO L230 ultiparseSymbolTable]: Global variable declaration of __U_MULTI_f___________false_valid_free_i__nlink_t in 960521-1_1_false-valid-free.i [2018-04-11 16:15:17,755 INFO L230 ultiparseSymbolTable]: Global variable declaration of __U_MULTI_f___________false_valid_free_i__u_short in 960521-1_1_false-valid-free.i [2018-04-11 16:15:17,755 INFO L230 ultiparseSymbolTable]: Global variable declaration of __U_MULTI_f___________false_valid_free_i__int64_t in 960521-1_1_false-valid-free.i [2018-04-11 16:15:17,755 INFO L230 ultiparseSymbolTable]: Global variable declaration of __U_MULTI_f___________false_valid_free_i____u_short in 960521-1_1_false-valid-free.i [2018-04-11 16:15:17,755 INFO L230 ultiparseSymbolTable]: Global variable declaration of __U_MULTI_f___________false_valid_free_i__suseconds_t in 960521-1_1_false-valid-free.i [2018-04-11 16:15:17,755 INFO L230 ultiparseSymbolTable]: Global variable declaration of __U_MULTI_f___________false_valid_free_i____blkcnt_t in 960521-1_1_false-valid-free.i [2018-04-11 16:15:17,756 INFO L230 ultiparseSymbolTable]: Global variable declaration of __U_MULTI_f___________false_valid_free_i____fsfilcnt_t in 960521-1_1_false-valid-free.i [2018-04-11 16:15:17,756 INFO L230 ultiparseSymbolTable]: Global variable declaration of __U_MULTI_f___________false_valid_free_i____WAIT_STATUS in 960521-1_1_false-valid-free.i [2018-04-11 16:15:17,756 INFO L230 ultiparseSymbolTable]: Global variable declaration of __U_MULTI_f___________false_valid_free_i__mode_t in 960521-1_1_false-valid-free.i [2018-04-11 16:15:17,756 INFO L230 ultiparseSymbolTable]: Global variable declaration of __U_MULTI_f___________false_valid_free_i__pthread_mutex_t in 960521-1_1_false-valid-free.i [2018-04-11 16:15:17,756 INFO L230 ultiparseSymbolTable]: Global variable declaration of __U_MULTI_f___________false_valid_free_i____clock_t in 960521-1_1_false-valid-free.i [2018-04-11 16:15:17,756 INFO L230 ultiparseSymbolTable]: Global variable declaration of __U_MULTI_f___________false_valid_free_i____u_int in 960521-1_1_false-valid-free.i [2018-04-11 16:15:17,756 INFO L230 ultiparseSymbolTable]: Global variable declaration of __U_MULTI_f___________false_valid_free_i__fsid_t in 960521-1_1_false-valid-free.i [2018-04-11 16:15:17,756 INFO L230 ultiparseSymbolTable]: Global variable declaration of __U_MULTI_f___________false_valid_free_i____loff_t in 960521-1_1_false-valid-free.i [2018-04-11 16:15:17,756 INFO L230 ultiparseSymbolTable]: Global variable declaration of __U_MULTI_f___________false_valid_free_i__time_t in 960521-1_1_false-valid-free.i [2018-04-11 16:15:17,756 INFO L230 ultiparseSymbolTable]: Global variable declaration of __U_MULTI_f___________false_valid_free_i__n in 960521-1_1_false-valid-free.i [2018-04-11 16:15:17,756 INFO L230 ultiparseSymbolTable]: Global variable declaration of __U_MULTI_f___________false_valid_free_i__daddr_t in 960521-1_1_false-valid-free.i [2018-04-11 16:15:17,756 INFO L230 ultiparseSymbolTable]: Global variable declaration of __U_MULTI_f___________false_valid_free_i__a in 960521-1_1_false-valid-free.i [2018-04-11 16:15:17,756 INFO L230 ultiparseSymbolTable]: Global variable declaration of __U_MULTI_f___________false_valid_free_i__ino_t in 960521-1_1_false-valid-free.i [2018-04-11 16:15:17,756 INFO L230 ultiparseSymbolTable]: Global variable declaration of __U_MULTI_f___________false_valid_free_i__b in 960521-1_1_false-valid-free.i [2018-04-11 16:15:17,756 INFO L230 ultiparseSymbolTable]: Global variable declaration of __U_MULTI_f___________false_valid_free_i____rlim64_t in 960521-1_1_false-valid-free.i [2018-04-11 16:15:17,756 INFO L230 ultiparseSymbolTable]: Global variable declaration of __U_MULTI_f___________false_valid_free_i__ldiv_t in 960521-1_1_false-valid-free.i [2018-04-11 16:15:17,756 INFO L230 ultiparseSymbolTable]: Global variable declaration of __U_MULTI_f___________false_valid_free_i____qaddr_t in 960521-1_1_false-valid-free.i [2018-04-11 16:15:17,756 INFO L230 ultiparseSymbolTable]: Global variable declaration of __U_MULTI_f___________false_valid_free_i____uint16_t in 960521-1_1_false-valid-free.i [2018-04-11 16:15:17,756 INFO L230 ultiparseSymbolTable]: Global variable declaration of __U_MULTI_f___________false_valid_free_i____useconds_t in 960521-1_1_false-valid-free.i [2018-04-11 16:15:17,757 INFO L230 ultiparseSymbolTable]: Global variable declaration of __U_MULTI_f___________false_valid_free_i__pthread_condattr_t in 960521-1_1_false-valid-free.i [2018-04-11 16:15:17,757 INFO L230 ultiparseSymbolTable]: Global variable declaration of __U_MULTI_f___________false_valid_free_i____blksize_t in 960521-1_1_false-valid-free.i [2018-04-11 16:15:17,757 INFO L230 ultiparseSymbolTable]: Global variable declaration of __U_MULTI_f___________false_valid_free_i____fsfilcnt64_t in 960521-1_1_false-valid-free.i [2018-04-11 16:15:17,757 INFO L230 ultiparseSymbolTable]: Global variable declaration of __U_MULTI_f___________false_valid_free_i____key_t in 960521-1_1_false-valid-free.i [2018-04-11 16:15:17,757 INFO L230 ultiparseSymbolTable]: Global variable declaration of __U_MULTI_f___________false_valid_free_i____uint8_t in 960521-1_1_false-valid-free.i [2018-04-11 16:15:17,757 INFO L230 ultiparseSymbolTable]: Global variable declaration of __U_MULTI_f___________false_valid_free_i____daddr_t in 960521-1_1_false-valid-free.i [2018-04-11 16:15:17,757 INFO L230 ultiparseSymbolTable]: Global variable declaration of __U_MULTI_f___________false_valid_free_i____int64_t in 960521-1_1_false-valid-free.i [2018-04-11 16:15:17,757 INFO L230 ultiparseSymbolTable]: Global variable declaration of __U_MULTI_f___________false_valid_free_i__u_quad_t in 960521-1_1_false-valid-free.i [2018-04-11 16:15:17,757 INFO L230 ultiparseSymbolTable]: Global variable declaration of __U_MULTI_f___________false_valid_free_i__ushort in 960521-1_1_false-valid-free.i [2018-04-11 16:15:17,757 INFO L230 ultiparseSymbolTable]: Global variable declaration of __U_MULTI_f___________false_valid_free_i____time_t in 960521-1_1_false-valid-free.i [2018-04-11 16:15:17,757 INFO L230 ultiparseSymbolTable]: Global variable declaration of __U_MULTI_f___________false_valid_free_i__loff_t in 960521-1_1_false-valid-free.i [2018-04-11 16:15:17,757 INFO L230 ultiparseSymbolTable]: Global variable declaration of __U_MULTI_f___________false_valid_free_i__int8_t in 960521-1_1_false-valid-free.i [2018-04-11 16:15:17,757 INFO L230 ultiparseSymbolTable]: Global variable declaration of __U_MULTI_f___________false_valid_free_i__u_int64_t in 960521-1_1_false-valid-free.i [2018-04-11 16:15:17,771 INFO L330 CDTParser]: Deleted temporary CDT project at /home/ultimate/work/ultimate/releaseScripts/default/UAutomizer-linux/data/FLAGc83c4816c [2018-04-11 16:15:17,775 INFO L304 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2018-04-11 16:15:17,776 INFO L131 ToolchainWalker]: Walking toolchain with 4 elements. [2018-04-11 16:15:17,777 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2018-04-11 16:15:17,777 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2018-04-11 16:15:17,781 INFO L276 PluginConnector]: CACSL2BoogieTranslator initialized [2018-04-11 16:15:17,782 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 11.04 04:15:17" (1/1) ... [2018-04-11 16:15:17,784 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@64bb2654 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.04 04:15:17, skipping insertion in model container [2018-04-11 16:15:17,784 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 11.04 04:15:17" (1/1) ... [2018-04-11 16:15:17,795 INFO L167 Dispatcher]: Using SV-COMP mode [2018-04-11 16:15:17,819 INFO L167 Dispatcher]: Using SV-COMP mode [2018-04-11 16:15:17,941 INFO L175 PostProcessor]: Settings: Checked method=main [2018-04-11 16:15:17,969 INFO L175 PostProcessor]: Settings: Checked method=main [2018-04-11 16:15:17,974 INFO L100 SccComputation]: Graph consists of 0 InCaSumBalls and 112 non ball SCCs. Number of states in SCCs 112. [2018-04-11 16:15:18,009 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.04 04:15:18 WrapperNode [2018-04-11 16:15:18,010 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2018-04-11 16:15:18,010 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2018-04-11 16:15:18,010 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2018-04-11 16:15:18,010 INFO L276 PluginConnector]: Boogie Preprocessor initialized [2018-04-11 16:15:18,023 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.04 04:15:18" (1/1) ... [2018-04-11 16:15:18,023 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.04 04:15:18" (1/1) ... [2018-04-11 16:15:18,035 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.04 04:15:18" (1/1) ... [2018-04-11 16:15:18,036 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.04 04:15:18" (1/1) ... [2018-04-11 16:15:18,043 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.04 04:15:18" (1/1) ... [2018-04-11 16:15:18,048 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.04 04:15:18" (1/1) ... [2018-04-11 16:15:18,050 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.04 04:15:18" (1/1) ... [2018-04-11 16:15:18,053 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2018-04-11 16:15:18,054 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2018-04-11 16:15:18,054 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2018-04-11 16:15:18,054 INFO L276 PluginConnector]: RCFGBuilder initialized [2018-04-11 16:15:18,055 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.04 04:15:18" (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 [2018-04-11 16:15:18,142 INFO L136 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2018-04-11 16:15:18,142 INFO L136 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2018-04-11 16:15:18,142 INFO L136 BoogieDeclarations]: Found implementation of procedure __U_MULTI_f___________false_valid_free_i__foo [2018-04-11 16:15:18,142 INFO L136 BoogieDeclarations]: Found implementation of procedure main [2018-04-11 16:15:18,142 INFO L128 BoogieDeclarations]: Found specification of procedure __VERIFIER_error [2018-04-11 16:15:18,143 INFO L128 BoogieDeclarations]: Found specification of procedure __ctype_get_mb_cur_max [2018-04-11 16:15:18,143 INFO L128 BoogieDeclarations]: Found specification of procedure atof [2018-04-11 16:15:18,143 INFO L128 BoogieDeclarations]: Found specification of procedure atoi [2018-04-11 16:15:18,143 INFO L128 BoogieDeclarations]: Found specification of procedure atol [2018-04-11 16:15:18,143 INFO L128 BoogieDeclarations]: Found specification of procedure atoll [2018-04-11 16:15:18,143 INFO L128 BoogieDeclarations]: Found specification of procedure strtod [2018-04-11 16:15:18,143 INFO L128 BoogieDeclarations]: Found specification of procedure strtof [2018-04-11 16:15:18,143 INFO L128 BoogieDeclarations]: Found specification of procedure strtold [2018-04-11 16:15:18,143 INFO L128 BoogieDeclarations]: Found specification of procedure strtol [2018-04-11 16:15:18,143 INFO L128 BoogieDeclarations]: Found specification of procedure strtoul [2018-04-11 16:15:18,144 INFO L128 BoogieDeclarations]: Found specification of procedure strtoq [2018-04-11 16:15:18,144 INFO L128 BoogieDeclarations]: Found specification of procedure strtouq [2018-04-11 16:15:18,144 INFO L128 BoogieDeclarations]: Found specification of procedure strtoll [2018-04-11 16:15:18,144 INFO L128 BoogieDeclarations]: Found specification of procedure strtoull [2018-04-11 16:15:18,144 INFO L128 BoogieDeclarations]: Found specification of procedure l64a [2018-04-11 16:15:18,144 INFO L128 BoogieDeclarations]: Found specification of procedure a64l [2018-04-11 16:15:18,144 INFO L128 BoogieDeclarations]: Found specification of procedure select [2018-04-11 16:15:18,144 INFO L128 BoogieDeclarations]: Found specification of procedure pselect [2018-04-11 16:15:18,144 INFO L128 BoogieDeclarations]: Found specification of procedure gnu_dev_major [2018-04-11 16:15:18,144 INFO L128 BoogieDeclarations]: Found specification of procedure gnu_dev_minor [2018-04-11 16:15:18,145 INFO L128 BoogieDeclarations]: Found specification of procedure gnu_dev_makedev [2018-04-11 16:15:18,145 INFO L128 BoogieDeclarations]: Found specification of procedure random [2018-04-11 16:15:18,145 INFO L128 BoogieDeclarations]: Found specification of procedure srandom [2018-04-11 16:15:18,145 INFO L128 BoogieDeclarations]: Found specification of procedure initstate [2018-04-11 16:15:18,145 INFO L128 BoogieDeclarations]: Found specification of procedure setstate [2018-04-11 16:15:18,145 INFO L128 BoogieDeclarations]: Found specification of procedure random_r [2018-04-11 16:15:18,145 INFO L128 BoogieDeclarations]: Found specification of procedure srandom_r [2018-04-11 16:15:18,145 INFO L128 BoogieDeclarations]: Found specification of procedure initstate_r [2018-04-11 16:15:18,145 INFO L128 BoogieDeclarations]: Found specification of procedure setstate_r [2018-04-11 16:15:18,145 INFO L128 BoogieDeclarations]: Found specification of procedure rand [2018-04-11 16:15:18,146 INFO L128 BoogieDeclarations]: Found specification of procedure srand [2018-04-11 16:15:18,146 INFO L128 BoogieDeclarations]: Found specification of procedure rand_r [2018-04-11 16:15:18,146 INFO L128 BoogieDeclarations]: Found specification of procedure drand48 [2018-04-11 16:15:18,146 INFO L128 BoogieDeclarations]: Found specification of procedure erand48 [2018-04-11 16:15:18,146 INFO L128 BoogieDeclarations]: Found specification of procedure lrand48 [2018-04-11 16:15:18,146 INFO L128 BoogieDeclarations]: Found specification of procedure nrand48 [2018-04-11 16:15:18,146 INFO L128 BoogieDeclarations]: Found specification of procedure mrand48 [2018-04-11 16:15:18,146 INFO L128 BoogieDeclarations]: Found specification of procedure jrand48 [2018-04-11 16:15:18,146 INFO L128 BoogieDeclarations]: Found specification of procedure srand48 [2018-04-11 16:15:18,147 INFO L128 BoogieDeclarations]: Found specification of procedure seed48 [2018-04-11 16:15:18,147 INFO L128 BoogieDeclarations]: Found specification of procedure lcong48 [2018-04-11 16:15:18,147 INFO L128 BoogieDeclarations]: Found specification of procedure drand48_r [2018-04-11 16:15:18,147 INFO L128 BoogieDeclarations]: Found specification of procedure erand48_r [2018-04-11 16:15:18,147 INFO L128 BoogieDeclarations]: Found specification of procedure lrand48_r [2018-04-11 16:15:18,147 INFO L128 BoogieDeclarations]: Found specification of procedure nrand48_r [2018-04-11 16:15:18,147 INFO L128 BoogieDeclarations]: Found specification of procedure mrand48_r [2018-04-11 16:15:18,147 INFO L128 BoogieDeclarations]: Found specification of procedure jrand48_r [2018-04-11 16:15:18,147 INFO L128 BoogieDeclarations]: Found specification of procedure srand48_r [2018-04-11 16:15:18,148 INFO L128 BoogieDeclarations]: Found specification of procedure seed48_r [2018-04-11 16:15:18,148 INFO L128 BoogieDeclarations]: Found specification of procedure lcong48_r [2018-04-11 16:15:18,148 INFO L128 BoogieDeclarations]: Found specification of procedure malloc [2018-04-11 16:15:18,148 INFO L128 BoogieDeclarations]: Found specification of procedure calloc [2018-04-11 16:15:18,148 INFO L128 BoogieDeclarations]: Found specification of procedure realloc [2018-04-11 16:15:18,148 INFO L128 BoogieDeclarations]: Found specification of procedure free [2018-04-11 16:15:18,148 INFO L128 BoogieDeclarations]: Found specification of procedure cfree [2018-04-11 16:15:18,148 INFO L128 BoogieDeclarations]: Found specification of procedure alloca [2018-04-11 16:15:18,148 INFO L128 BoogieDeclarations]: Found specification of procedure valloc [2018-04-11 16:15:18,148 INFO L128 BoogieDeclarations]: Found specification of procedure posix_memalign [2018-04-11 16:15:18,149 INFO L128 BoogieDeclarations]: Found specification of procedure abort [2018-04-11 16:15:18,149 INFO L128 BoogieDeclarations]: Found specification of procedure atexit [2018-04-11 16:15:18,149 INFO L128 BoogieDeclarations]: Found specification of procedure on_exit [2018-04-11 16:15:18,149 INFO L128 BoogieDeclarations]: Found specification of procedure exit [2018-04-11 16:15:18,149 INFO L128 BoogieDeclarations]: Found specification of procedure _Exit [2018-04-11 16:15:18,149 INFO L128 BoogieDeclarations]: Found specification of procedure getenv [2018-04-11 16:15:18,149 INFO L128 BoogieDeclarations]: Found specification of procedure __secure_getenv [2018-04-11 16:15:18,149 INFO L128 BoogieDeclarations]: Found specification of procedure putenv [2018-04-11 16:15:18,149 INFO L128 BoogieDeclarations]: Found specification of procedure setenv [2018-04-11 16:15:18,149 INFO L128 BoogieDeclarations]: Found specification of procedure unsetenv [2018-04-11 16:15:18,149 INFO L128 BoogieDeclarations]: Found specification of procedure clearenv [2018-04-11 16:15:18,149 INFO L128 BoogieDeclarations]: Found specification of procedure mktemp [2018-04-11 16:15:18,149 INFO L128 BoogieDeclarations]: Found specification of procedure mkstemp [2018-04-11 16:15:18,149 INFO L128 BoogieDeclarations]: Found specification of procedure mkstemps [2018-04-11 16:15:18,150 INFO L128 BoogieDeclarations]: Found specification of procedure mkdtemp [2018-04-11 16:15:18,150 INFO L128 BoogieDeclarations]: Found specification of procedure system [2018-04-11 16:15:18,150 INFO L128 BoogieDeclarations]: Found specification of procedure realpath [2018-04-11 16:15:18,150 INFO L128 BoogieDeclarations]: Found specification of procedure bsearch [2018-04-11 16:15:18,150 INFO L128 BoogieDeclarations]: Found specification of procedure qsort [2018-04-11 16:15:18,150 INFO L128 BoogieDeclarations]: Found specification of procedure abs [2018-04-11 16:15:18,150 INFO L128 BoogieDeclarations]: Found specification of procedure labs [2018-04-11 16:15:18,150 INFO L128 BoogieDeclarations]: Found specification of procedure llabs [2018-04-11 16:15:18,150 INFO L128 BoogieDeclarations]: Found specification of procedure div [2018-04-11 16:15:18,150 INFO L128 BoogieDeclarations]: Found specification of procedure ldiv [2018-04-11 16:15:18,150 INFO L128 BoogieDeclarations]: Found specification of procedure lldiv [2018-04-11 16:15:18,150 INFO L128 BoogieDeclarations]: Found specification of procedure ecvt [2018-04-11 16:15:18,150 INFO L128 BoogieDeclarations]: Found specification of procedure fcvt [2018-04-11 16:15:18,150 INFO L128 BoogieDeclarations]: Found specification of procedure gcvt [2018-04-11 16:15:18,150 INFO L128 BoogieDeclarations]: Found specification of procedure qecvt [2018-04-11 16:15:18,151 INFO L128 BoogieDeclarations]: Found specification of procedure qfcvt [2018-04-11 16:15:18,151 INFO L128 BoogieDeclarations]: Found specification of procedure qgcvt [2018-04-11 16:15:18,151 INFO L128 BoogieDeclarations]: Found specification of procedure ecvt_r [2018-04-11 16:15:18,151 INFO L128 BoogieDeclarations]: Found specification of procedure fcvt_r [2018-04-11 16:15:18,151 INFO L128 BoogieDeclarations]: Found specification of procedure qecvt_r [2018-04-11 16:15:18,151 INFO L128 BoogieDeclarations]: Found specification of procedure qfcvt_r [2018-04-11 16:15:18,151 INFO L128 BoogieDeclarations]: Found specification of procedure mblen [2018-04-11 16:15:18,151 INFO L128 BoogieDeclarations]: Found specification of procedure mbtowc [2018-04-11 16:15:18,151 INFO L128 BoogieDeclarations]: Found specification of procedure wctomb [2018-04-11 16:15:18,151 INFO L128 BoogieDeclarations]: Found specification of procedure mbstowcs [2018-04-11 16:15:18,151 INFO L128 BoogieDeclarations]: Found specification of procedure wcstombs [2018-04-11 16:15:18,152 INFO L128 BoogieDeclarations]: Found specification of procedure rpmatch [2018-04-11 16:15:18,152 INFO L128 BoogieDeclarations]: Found specification of procedure getsubopt [2018-04-11 16:15:18,152 INFO L128 BoogieDeclarations]: Found specification of procedure getloadavg [2018-04-11 16:15:18,152 INFO L128 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_int [2018-04-11 16:15:18,152 INFO L128 BoogieDeclarations]: Found specification of procedure __U_MULTI_f___________false_valid_free_i__foo [2018-04-11 16:15:18,152 INFO L128 BoogieDeclarations]: Found specification of procedure write~int [2018-04-11 16:15:18,152 INFO L128 BoogieDeclarations]: Found specification of procedure main [2018-04-11 16:15:18,152 INFO L128 BoogieDeclarations]: Found specification of procedure #Ultimate.alloc [2018-04-11 16:15:18,152 INFO L128 BoogieDeclarations]: Found specification of procedure read~int [2018-04-11 16:15:18,152 INFO L128 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2018-04-11 16:15:18,152 INFO L128 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2018-04-11 16:15:18,153 INFO L128 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2018-04-11 16:15:18,153 INFO L128 BoogieDeclarations]: Found specification of procedure write~unchecked~int [2018-04-11 16:15:18,422 INFO L259 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2018-04-11 16:15:18,422 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 11.04 04:15:18 BoogieIcfgContainer [2018-04-11 16:15:18,422 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2018-04-11 16:15:18,423 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2018-04-11 16:15:18,423 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2018-04-11 16:15:18,425 INFO L276 PluginConnector]: TraceAbstraction initialized [2018-04-11 16:15:18,425 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 11.04 04:15:17" (1/3) ... [2018-04-11 16:15:18,426 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@600e741e and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 11.04 04:15:18, skipping insertion in model container [2018-04-11 16:15:18,426 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.04 04:15:18" (2/3) ... [2018-04-11 16:15:18,426 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@600e741e and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 11.04 04:15:18, skipping insertion in model container [2018-04-11 16:15:18,426 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 11.04 04:15:18" (3/3) ... [2018-04-11 16:15:18,427 INFO L107 eAbstractionObserver]: Analyzing ICFG 960521-1_1_false-valid-free.i [2018-04-11 16:15:18,434 INFO L131 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2018-04-11 16:15:18,439 INFO L143 ceAbstractionStarter]: Appying trace abstraction to program that has 17 error locations. [2018-04-11 16:15:18,465 INFO L128 ementStrategyFactory]: Using default assertion order modulation [2018-04-11 16:15:18,465 INFO L369 AbstractCegarLoop]: Interprodecural is true [2018-04-11 16:15:18,465 INFO L370 AbstractCegarLoop]: Hoare is false [2018-04-11 16:15:18,466 INFO L371 AbstractCegarLoop]: Compute interpolants for FPandBP [2018-04-11 16:15:18,466 INFO L372 AbstractCegarLoop]: Backedges is TWOTRACK [2018-04-11 16:15:18,466 INFO L373 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2018-04-11 16:15:18,466 INFO L374 AbstractCegarLoop]: Difference is false [2018-04-11 16:15:18,466 INFO L375 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2018-04-11 16:15:18,466 INFO L380 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2018-04-11 16:15:18,466 INFO L87 2NestedWordAutomaton]: Mode: main mode - execution starts in main procedure [2018-04-11 16:15:18,476 INFO L276 IsEmpty]: Start isEmpty. Operand 64 states. [2018-04-11 16:15:18,484 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 13 [2018-04-11 16:15:18,484 INFO L347 BasicCegarLoop]: Found error trace [2018-04-11 16:15:18,484 INFO L355 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-04-11 16:15:18,484 INFO L408 AbstractCegarLoop]: === Iteration 1 === [__U_MULTI_f___________false_valid_free_i__fooErr2RequiresViolation, __U_MULTI_f___________false_valid_free_i__fooErr0RequiresViolation, __U_MULTI_f___________false_valid_free_i__fooErr1RequiresViolation, __U_MULTI_f___________false_valid_free_i__fooErr3RequiresViolation, mainErr1RequiresViolation, mainErr6AssertViolationMEMORY_FREE, mainErr4AssertViolationMEMORY_FREE, mainErr10AssertViolationMEMORY_FREE, mainErr11AssertViolationMEMORY_FREE, mainErr0RequiresViolation, mainErr12EnsuresViolationMEMORY_LEAK, mainErr3RequiresViolation, mainErr7AssertViolationMEMORY_FREE, mainErr9AssertViolationMEMORY_FREE, mainErr2RequiresViolation, mainErr8AssertViolationMEMORY_FREE, mainErr5AssertViolationMEMORY_FREE]=== [2018-04-11 16:15:18,487 INFO L82 PathProgramCache]: Analyzing trace with hash 91603591, now seen corresponding path program 1 times [2018-04-11 16:15:18,488 INFO L213 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS_NO_ARRAY [2018-04-11 16:15:18,489 INFO L68 tionRefinementEngine]: Using refinement strategy SmtInterpolRefinementStrategy [2018-04-11 16:15:18,519 INFO L119 rtionOrderModulation]: Craig nested/tree interpolation forces the following order [2018-04-11 16:15:18,519 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-04-11 16:15:18,519 INFO L119 rtionOrderModulation]: Craig nested/tree interpolation forces the following order [2018-04-11 16:15:18,554 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-04-11 16:15:18,559 WARN L137 erpolLogProxyWrapper]: Using partial proofs (cut at CNF-level). Set option :produce-proofs to true to get complete proofs. [2018-04-11 16:15:18,583 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-04-11 16:15:18,585 INFO L320 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-04-11 16:15:18,586 INFO L335 seRefinementStrategy]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2018-04-11 16:15:18,587 INFO L442 AbstractCegarLoop]: Interpolant automaton has 2 states [2018-04-11 16:15:18,596 INFO L132 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2018-04-11 16:15:18,596 INFO L133 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2018-04-11 16:15:18,598 INFO L87 Difference]: Start difference. First operand 64 states. Second operand 2 states. [2018-04-11 16:15:18,613 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-04-11 16:15:18,613 INFO L93 Difference]: Finished difference Result 64 states and 67 transitions. [2018-04-11 16:15:18,613 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2018-04-11 16:15:18,614 INFO L78 Accepts]: Start accepts. Automaton has 2 states. Word has length 12 [2018-04-11 16:15:18,614 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-04-11 16:15:18,620 INFO L225 Difference]: With dead ends: 64 [2018-04-11 16:15:18,620 INFO L226 Difference]: Without dead ends: 61 [2018-04-11 16:15:18,621 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 [2018-04-11 16:15:18,634 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 61 states. [2018-04-11 16:15:18,648 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 61 to 61. [2018-04-11 16:15:18,649 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 61 states. [2018-04-11 16:15:18,650 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 61 states to 61 states and 64 transitions. [2018-04-11 16:15:18,651 INFO L78 Accepts]: Start accepts. Automaton has 61 states and 64 transitions. Word has length 12 [2018-04-11 16:15:18,651 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-04-11 16:15:18,651 INFO L459 AbstractCegarLoop]: Abstraction has 61 states and 64 transitions. [2018-04-11 16:15:18,651 INFO L460 AbstractCegarLoop]: Interpolant automaton has 2 states. [2018-04-11 16:15:18,652 INFO L276 IsEmpty]: Start isEmpty. Operand 61 states and 64 transitions. [2018-04-11 16:15:18,652 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 15 [2018-04-11 16:15:18,652 INFO L347 BasicCegarLoop]: Found error trace [2018-04-11 16:15:18,652 INFO L355 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-04-11 16:15:18,652 INFO L408 AbstractCegarLoop]: === Iteration 2 === [__U_MULTI_f___________false_valid_free_i__fooErr2RequiresViolation, __U_MULTI_f___________false_valid_free_i__fooErr0RequiresViolation, __U_MULTI_f___________false_valid_free_i__fooErr1RequiresViolation, __U_MULTI_f___________false_valid_free_i__fooErr3RequiresViolation, mainErr1RequiresViolation, mainErr6AssertViolationMEMORY_FREE, mainErr4AssertViolationMEMORY_FREE, mainErr10AssertViolationMEMORY_FREE, mainErr11AssertViolationMEMORY_FREE, mainErr0RequiresViolation, mainErr12EnsuresViolationMEMORY_LEAK, mainErr3RequiresViolation, mainErr7AssertViolationMEMORY_FREE, mainErr9AssertViolationMEMORY_FREE, mainErr2RequiresViolation, mainErr8AssertViolationMEMORY_FREE, mainErr5AssertViolationMEMORY_FREE]=== [2018-04-11 16:15:18,652 INFO L82 PathProgramCache]: Analyzing trace with hash -268596371, now seen corresponding path program 1 times [2018-04-11 16:15:18,652 INFO L213 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS_NO_ARRAY [2018-04-11 16:15:18,652 INFO L68 tionRefinementEngine]: Using refinement strategy SmtInterpolRefinementStrategy [2018-04-11 16:15:18,653 INFO L119 rtionOrderModulation]: Craig nested/tree interpolation forces the following order [2018-04-11 16:15:18,653 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-04-11 16:15:18,653 INFO L119 rtionOrderModulation]: Craig nested/tree interpolation forces the following order [2018-04-11 16:15:18,673 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-04-11 16:15:18,673 WARN L137 erpolLogProxyWrapper]: Using partial proofs (cut at CNF-level). Set option :produce-proofs to true to get complete proofs. [2018-04-11 16:15:18,708 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-04-11 16:15:18,708 INFO L320 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-04-11 16:15:18,709 INFO L335 seRefinementStrategy]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2018-04-11 16:15:18,710 INFO L442 AbstractCegarLoop]: Interpolant automaton has 4 states [2018-04-11 16:15:18,710 INFO L132 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2018-04-11 16:15:18,711 INFO L133 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2018-04-11 16:15:18,711 INFO L87 Difference]: Start difference. First operand 61 states and 64 transitions. Second operand 4 states. [2018-04-11 16:15:18,778 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-04-11 16:15:18,778 INFO L93 Difference]: Finished difference Result 60 states and 63 transitions. [2018-04-11 16:15:18,778 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2018-04-11 16:15:18,778 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 14 [2018-04-11 16:15:18,778 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-04-11 16:15:18,779 INFO L225 Difference]: With dead ends: 60 [2018-04-11 16:15:18,779 INFO L226 Difference]: Without dead ends: 60 [2018-04-11 16:15:18,780 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 [2018-04-11 16:15:18,780 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 60 states. [2018-04-11 16:15:18,783 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 60 to 60. [2018-04-11 16:15:18,783 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 60 states. [2018-04-11 16:15:18,784 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 60 states to 60 states and 63 transitions. [2018-04-11 16:15:18,785 INFO L78 Accepts]: Start accepts. Automaton has 60 states and 63 transitions. Word has length 14 [2018-04-11 16:15:18,785 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-04-11 16:15:18,785 INFO L459 AbstractCegarLoop]: Abstraction has 60 states and 63 transitions. [2018-04-11 16:15:18,785 INFO L460 AbstractCegarLoop]: Interpolant automaton has 4 states. [2018-04-11 16:15:18,785 INFO L276 IsEmpty]: Start isEmpty. Operand 60 states and 63 transitions. [2018-04-11 16:15:18,785 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 15 [2018-04-11 16:15:18,785 INFO L347 BasicCegarLoop]: Found error trace [2018-04-11 16:15:18,786 INFO L355 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-04-11 16:15:18,786 INFO L408 AbstractCegarLoop]: === Iteration 3 === [__U_MULTI_f___________false_valid_free_i__fooErr2RequiresViolation, __U_MULTI_f___________false_valid_free_i__fooErr0RequiresViolation, __U_MULTI_f___________false_valid_free_i__fooErr1RequiresViolation, __U_MULTI_f___________false_valid_free_i__fooErr3RequiresViolation, mainErr1RequiresViolation, mainErr6AssertViolationMEMORY_FREE, mainErr4AssertViolationMEMORY_FREE, mainErr10AssertViolationMEMORY_FREE, mainErr11AssertViolationMEMORY_FREE, mainErr0RequiresViolation, mainErr12EnsuresViolationMEMORY_LEAK, mainErr3RequiresViolation, mainErr7AssertViolationMEMORY_FREE, mainErr9AssertViolationMEMORY_FREE, mainErr2RequiresViolation, mainErr8AssertViolationMEMORY_FREE, mainErr5AssertViolationMEMORY_FREE]=== [2018-04-11 16:15:18,786 INFO L82 PathProgramCache]: Analyzing trace with hash -268596370, now seen corresponding path program 1 times [2018-04-11 16:15:18,786 INFO L213 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS_NO_ARRAY [2018-04-11 16:15:18,786 INFO L68 tionRefinementEngine]: Using refinement strategy SmtInterpolRefinementStrategy [2018-04-11 16:15:18,787 INFO L119 rtionOrderModulation]: Craig nested/tree interpolation forces the following order [2018-04-11 16:15:18,787 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-04-11 16:15:18,787 INFO L119 rtionOrderModulation]: Craig nested/tree interpolation forces the following order [2018-04-11 16:15:18,800 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-04-11 16:15:18,800 WARN L137 erpolLogProxyWrapper]: Using partial proofs (cut at CNF-level). Set option :produce-proofs to true to get complete proofs. [2018-04-11 16:15:18,854 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-04-11 16:15:18,854 INFO L320 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-04-11 16:15:18,854 INFO L335 seRefinementStrategy]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2018-04-11 16:15:18,854 INFO L442 AbstractCegarLoop]: Interpolant automaton has 5 states [2018-04-11 16:15:18,854 INFO L132 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2018-04-11 16:15:18,855 INFO L133 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2018-04-11 16:15:18,855 INFO L87 Difference]: Start difference. First operand 60 states and 63 transitions. Second operand 5 states. [2018-04-11 16:15:18,915 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-04-11 16:15:18,916 INFO L93 Difference]: Finished difference Result 59 states and 62 transitions. [2018-04-11 16:15:18,916 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2018-04-11 16:15:18,916 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 14 [2018-04-11 16:15:18,916 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-04-11 16:15:18,917 INFO L225 Difference]: With dead ends: 59 [2018-04-11 16:15:18,917 INFO L226 Difference]: Without dead ends: 59 [2018-04-11 16:15:18,917 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 [2018-04-11 16:15:18,918 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 59 states. [2018-04-11 16:15:18,920 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 59 to 59. [2018-04-11 16:15:18,920 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 59 states. [2018-04-11 16:15:18,921 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 59 states to 59 states and 62 transitions. [2018-04-11 16:15:18,921 INFO L78 Accepts]: Start accepts. Automaton has 59 states and 62 transitions. Word has length 14 [2018-04-11 16:15:18,921 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-04-11 16:15:18,922 INFO L459 AbstractCegarLoop]: Abstraction has 59 states and 62 transitions. [2018-04-11 16:15:18,922 INFO L460 AbstractCegarLoop]: Interpolant automaton has 5 states. [2018-04-11 16:15:18,922 INFO L276 IsEmpty]: Start isEmpty. Operand 59 states and 62 transitions. [2018-04-11 16:15:18,922 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 21 [2018-04-11 16:15:18,922 INFO L347 BasicCegarLoop]: Found error trace [2018-04-11 16:15:18,922 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] [2018-04-11 16:15:18,922 INFO L408 AbstractCegarLoop]: === Iteration 4 === [__U_MULTI_f___________false_valid_free_i__fooErr2RequiresViolation, __U_MULTI_f___________false_valid_free_i__fooErr0RequiresViolation, __U_MULTI_f___________false_valid_free_i__fooErr1RequiresViolation, __U_MULTI_f___________false_valid_free_i__fooErr3RequiresViolation, mainErr1RequiresViolation, mainErr6AssertViolationMEMORY_FREE, mainErr4AssertViolationMEMORY_FREE, mainErr10AssertViolationMEMORY_FREE, mainErr11AssertViolationMEMORY_FREE, mainErr0RequiresViolation, mainErr12EnsuresViolationMEMORY_LEAK, mainErr3RequiresViolation, mainErr7AssertViolationMEMORY_FREE, mainErr9AssertViolationMEMORY_FREE, mainErr2RequiresViolation, mainErr8AssertViolationMEMORY_FREE, mainErr5AssertViolationMEMORY_FREE]=== [2018-04-11 16:15:18,923 INFO L82 PathProgramCache]: Analyzing trace with hash -16320553, now seen corresponding path program 1 times [2018-04-11 16:15:18,923 INFO L213 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS_NO_ARRAY [2018-04-11 16:15:18,923 INFO L68 tionRefinementEngine]: Using refinement strategy SmtInterpolRefinementStrategy [2018-04-11 16:15:18,924 INFO L119 rtionOrderModulation]: Craig nested/tree interpolation forces the following order [2018-04-11 16:15:18,924 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-04-11 16:15:18,924 INFO L119 rtionOrderModulation]: Craig nested/tree interpolation forces the following order [2018-04-11 16:15:18,938 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-04-11 16:15:18,939 WARN L137 erpolLogProxyWrapper]: Using partial proofs (cut at CNF-level). Set option :produce-proofs to true to get complete proofs. [2018-04-11 16:15:18,944 INFO L431 seRefinementStrategy]: Interpolation failed due to KNOWN_IGNORE: Unknown lemma type! [2018-04-11 16:15:18,944 INFO L308 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2018-04-11 16:15:18,945 INFO L213 ckRefinementStrategy]: Switched to mode SMTINTERPOL_FP [2018-04-11 16:15:18,945 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-04-11 16:15:18,981 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-04-11 16:15:18,989 INFO L270 TraceCheckSpWp]: Computing forward predicates... [2018-04-11 16:15:19,011 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 [2018-04-11 16:15:19,013 INFO L267 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2018-04-11 16:15:19,014 INFO L267 ElimStorePlain]: Start of recursive call 1: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-04-11 16:15:19,014 INFO L202 ElimStorePlain]: Needed 2 recursive calls to eliminate 1 variables, input treesize:6, output treesize:5 [2018-04-11 16:15:19,025 INFO L700 Elim1Store]: detected not equals via solver [2018-04-11 16:15:19,026 INFO L700 Elim1Store]: detected not equals via solver [2018-04-11 16:15:19,027 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 [2018-04-11 16:15:19,028 INFO L267 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2018-04-11 16:15:19,034 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. [2018-04-11 16:15:19,034 INFO L202 ElimStorePlain]: Needed 2 recursive calls to eliminate 2 variables, input treesize:17, output treesize:15 [2018-04-11 16:15:19,057 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-04-11 16:15:19,057 INFO L320 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-04-11 16:15:19,058 INFO L335 seRefinementStrategy]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2018-04-11 16:15:19,058 INFO L442 AbstractCegarLoop]: Interpolant automaton has 5 states [2018-04-11 16:15:19,058 INFO L132 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2018-04-11 16:15:19,058 INFO L133 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2018-04-11 16:15:19,058 INFO L87 Difference]: Start difference. First operand 59 states and 62 transitions. Second operand 5 states. [2018-04-11 16:15:19,135 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-04-11 16:15:19,135 INFO L93 Difference]: Finished difference Result 56 states and 59 transitions. [2018-04-11 16:15:19,135 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2018-04-11 16:15:19,136 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 20 [2018-04-11 16:15:19,136 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-04-11 16:15:19,136 INFO L225 Difference]: With dead ends: 56 [2018-04-11 16:15:19,136 INFO L226 Difference]: Without dead ends: 56 [2018-04-11 16:15:19,137 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 [2018-04-11 16:15:19,137 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 56 states. [2018-04-11 16:15:19,139 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 56 to 56. [2018-04-11 16:15:19,140 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 56 states. [2018-04-11 16:15:19,141 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 56 states to 56 states and 59 transitions. [2018-04-11 16:15:19,141 INFO L78 Accepts]: Start accepts. Automaton has 56 states and 59 transitions. Word has length 20 [2018-04-11 16:15:19,141 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-04-11 16:15:19,141 INFO L459 AbstractCegarLoop]: Abstraction has 56 states and 59 transitions. [2018-04-11 16:15:19,141 INFO L460 AbstractCegarLoop]: Interpolant automaton has 5 states. [2018-04-11 16:15:19,141 INFO L276 IsEmpty]: Start isEmpty. Operand 56 states and 59 transitions. [2018-04-11 16:15:19,142 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 21 [2018-04-11 16:15:19,142 INFO L347 BasicCegarLoop]: Found error trace [2018-04-11 16:15:19,142 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] [2018-04-11 16:15:19,142 INFO L408 AbstractCegarLoop]: === Iteration 5 === [__U_MULTI_f___________false_valid_free_i__fooErr2RequiresViolation, __U_MULTI_f___________false_valid_free_i__fooErr0RequiresViolation, __U_MULTI_f___________false_valid_free_i__fooErr1RequiresViolation, __U_MULTI_f___________false_valid_free_i__fooErr3RequiresViolation, mainErr1RequiresViolation, mainErr6AssertViolationMEMORY_FREE, mainErr4AssertViolationMEMORY_FREE, mainErr10AssertViolationMEMORY_FREE, mainErr11AssertViolationMEMORY_FREE, mainErr0RequiresViolation, mainErr12EnsuresViolationMEMORY_LEAK, mainErr3RequiresViolation, mainErr7AssertViolationMEMORY_FREE, mainErr9AssertViolationMEMORY_FREE, mainErr2RequiresViolation, mainErr8AssertViolationMEMORY_FREE, mainErr5AssertViolationMEMORY_FREE]=== [2018-04-11 16:15:19,143 INFO L82 PathProgramCache]: Analyzing trace with hash -16320552, now seen corresponding path program 1 times [2018-04-11 16:15:19,143 INFO L213 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS_NO_ARRAY [2018-04-11 16:15:19,143 INFO L68 tionRefinementEngine]: Using refinement strategy SmtInterpolRefinementStrategy [2018-04-11 16:15:19,144 INFO L119 rtionOrderModulation]: Craig nested/tree interpolation forces the following order [2018-04-11 16:15:19,144 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-04-11 16:15:19,144 INFO L119 rtionOrderModulation]: Craig nested/tree interpolation forces the following order [2018-04-11 16:15:19,156 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-04-11 16:15:19,157 WARN L137 erpolLogProxyWrapper]: Using partial proofs (cut at CNF-level). Set option :produce-proofs to true to get complete proofs. [2018-04-11 16:15:19,161 INFO L431 seRefinementStrategy]: Interpolation failed due to KNOWN_IGNORE: Unknown lemma type! [2018-04-11 16:15:19,161 INFO L308 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2018-04-11 16:15:19,161 INFO L213 ckRefinementStrategy]: Switched to mode SMTINTERPOL_FP [2018-04-11 16:15:19,162 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-04-11 16:15:19,188 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-04-11 16:15:19,192 INFO L270 TraceCheckSpWp]: Computing forward predicates... [2018-04-11 16:15:19,198 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 [2018-04-11 16:15:19,198 INFO L267 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2018-04-11 16:15:19,202 INFO L267 ElimStorePlain]: Start of recursive call 1: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-04-11 16:15:19,202 INFO L202 ElimStorePlain]: Needed 2 recursive calls to eliminate 1 variables, input treesize:15, output treesize:14 [2018-04-11 16:15:19,222 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 1 select indices, 1 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 16 treesize of output 15 [2018-04-11 16:15:19,222 INFO L267 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2018-04-11 16:15:19,230 INFO L267 ElimStorePlain]: Start of recursive call 1: 2 dim-0 vars, 1 dim-1 vars, End of recursive call: 2 dim-0 vars, and 1 xjuncts. [2018-04-11 16:15:19,231 INFO L202 ElimStorePlain]: Needed 2 recursive calls to eliminate 3 variables, input treesize:22, output treesize:21 [2018-04-11 16:15:19,274 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-04-11 16:15:19,275 INFO L320 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-04-11 16:15:19,275 INFO L335 seRefinementStrategy]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2018-04-11 16:15:19,275 INFO L442 AbstractCegarLoop]: Interpolant automaton has 7 states [2018-04-11 16:15:19,275 INFO L132 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2018-04-11 16:15:19,275 INFO L133 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=27, Unknown=0, NotChecked=0, Total=42 [2018-04-11 16:15:19,276 INFO L87 Difference]: Start difference. First operand 56 states and 59 transitions. Second operand 7 states. [2018-04-11 16:15:19,412 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-04-11 16:15:19,412 INFO L93 Difference]: Finished difference Result 66 states and 70 transitions. [2018-04-11 16:15:19,413 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2018-04-11 16:15:19,413 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 20 [2018-04-11 16:15:19,413 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-04-11 16:15:19,417 INFO L225 Difference]: With dead ends: 66 [2018-04-11 16:15:19,418 INFO L226 Difference]: Without dead ends: 66 [2018-04-11 16:15:19,418 INFO L567 BasicCegarLoop]: 0 DeclaredPredicates, 21 GetRequests, 14 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 6 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=27, Invalid=45, Unknown=0, NotChecked=0, Total=72 [2018-04-11 16:15:19,418 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 66 states. [2018-04-11 16:15:19,423 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 66 to 57. [2018-04-11 16:15:19,423 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 57 states. [2018-04-11 16:15:19,424 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 57 states to 57 states and 60 transitions. [2018-04-11 16:15:19,424 INFO L78 Accepts]: Start accepts. Automaton has 57 states and 60 transitions. Word has length 20 [2018-04-11 16:15:19,424 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-04-11 16:15:19,424 INFO L459 AbstractCegarLoop]: Abstraction has 57 states and 60 transitions. [2018-04-11 16:15:19,424 INFO L460 AbstractCegarLoop]: Interpolant automaton has 7 states. [2018-04-11 16:15:19,424 INFO L276 IsEmpty]: Start isEmpty. Operand 57 states and 60 transitions. [2018-04-11 16:15:19,425 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 25 [2018-04-11 16:15:19,425 INFO L347 BasicCegarLoop]: Found error trace [2018-04-11 16:15:19,425 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] [2018-04-11 16:15:19,425 INFO L408 AbstractCegarLoop]: === Iteration 6 === [__U_MULTI_f___________false_valid_free_i__fooErr2RequiresViolation, __U_MULTI_f___________false_valid_free_i__fooErr0RequiresViolation, __U_MULTI_f___________false_valid_free_i__fooErr1RequiresViolation, __U_MULTI_f___________false_valid_free_i__fooErr3RequiresViolation, mainErr1RequiresViolation, mainErr6AssertViolationMEMORY_FREE, mainErr4AssertViolationMEMORY_FREE, mainErr10AssertViolationMEMORY_FREE, mainErr11AssertViolationMEMORY_FREE, mainErr0RequiresViolation, mainErr12EnsuresViolationMEMORY_LEAK, mainErr3RequiresViolation, mainErr7AssertViolationMEMORY_FREE, mainErr9AssertViolationMEMORY_FREE, mainErr2RequiresViolation, mainErr8AssertViolationMEMORY_FREE, mainErr5AssertViolationMEMORY_FREE]=== [2018-04-11 16:15:19,425 INFO L82 PathProgramCache]: Analyzing trace with hash -1333687761, now seen corresponding path program 1 times [2018-04-11 16:15:19,426 INFO L213 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS_NO_ARRAY [2018-04-11 16:15:19,426 INFO L68 tionRefinementEngine]: Using refinement strategy SmtInterpolRefinementStrategy [2018-04-11 16:15:19,426 INFO L119 rtionOrderModulation]: Craig nested/tree interpolation forces the following order [2018-04-11 16:15:19,426 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-04-11 16:15:19,427 INFO L119 rtionOrderModulation]: Craig nested/tree interpolation forces the following order [2018-04-11 16:15:19,437 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-04-11 16:15:19,437 WARN L137 erpolLogProxyWrapper]: Using partial proofs (cut at CNF-level). Set option :produce-proofs to true to get complete proofs. [2018-04-11 16:15:19,508 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 1 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-04-11 16:15:19,508 INFO L308 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2018-04-11 16:15:19,508 INFO L213 ckRefinementStrategy]: Switched to mode SMTINTERPOL_FP [2018-04-11 16:15:19,509 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-04-11 16:15:19,528 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-04-11 16:15:19,530 INFO L270 TraceCheckSpWp]: Computing forward predicates... [2018-04-11 16:15:19,557 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 3 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-04-11 16:15:19,557 INFO L320 seRefinementStrategy]: Constructing automaton from 1 perfect and 1 imperfect interpolant sequences. [2018-04-11 16:15:19,557 INFO L335 seRefinementStrategy]: Number of different interpolants: perfect sequences [5] imperfect sequences [7] total 9 [2018-04-11 16:15:19,558 INFO L442 AbstractCegarLoop]: Interpolant automaton has 9 states [2018-04-11 16:15:19,558 INFO L132 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2018-04-11 16:15:19,558 INFO L133 InterpolantAutomaton]: CoverageRelationStatistics Valid=21, Invalid=51, Unknown=0, NotChecked=0, Total=72 [2018-04-11 16:15:19,558 INFO L87 Difference]: Start difference. First operand 57 states and 60 transitions. Second operand 9 states. [2018-04-11 16:15:19,658 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-04-11 16:15:19,658 INFO L93 Difference]: Finished difference Result 102 states and 106 transitions. [2018-04-11 16:15:19,663 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2018-04-11 16:15:19,663 INFO L78 Accepts]: Start accepts. Automaton has 9 states. Word has length 24 [2018-04-11 16:15:19,663 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-04-11 16:15:19,664 INFO L225 Difference]: With dead ends: 102 [2018-04-11 16:15:19,664 INFO L226 Difference]: Without dead ends: 102 [2018-04-11 16:15:19,664 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 [2018-04-11 16:15:19,665 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 102 states. [2018-04-11 16:15:19,668 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 102 to 79. [2018-04-11 16:15:19,669 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 79 states. [2018-04-11 16:15:19,669 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 79 states to 79 states and 83 transitions. [2018-04-11 16:15:19,669 INFO L78 Accepts]: Start accepts. Automaton has 79 states and 83 transitions. Word has length 24 [2018-04-11 16:15:19,670 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-04-11 16:15:19,670 INFO L459 AbstractCegarLoop]: Abstraction has 79 states and 83 transitions. [2018-04-11 16:15:19,670 INFO L460 AbstractCegarLoop]: Interpolant automaton has 9 states. [2018-04-11 16:15:19,670 INFO L276 IsEmpty]: Start isEmpty. Operand 79 states and 83 transitions. [2018-04-11 16:15:19,670 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 28 [2018-04-11 16:15:19,670 INFO L347 BasicCegarLoop]: Found error trace [2018-04-11 16:15:19,670 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] [2018-04-11 16:15:19,670 INFO L408 AbstractCegarLoop]: === Iteration 7 === [__U_MULTI_f___________false_valid_free_i__fooErr2RequiresViolation, __U_MULTI_f___________false_valid_free_i__fooErr0RequiresViolation, __U_MULTI_f___________false_valid_free_i__fooErr1RequiresViolation, __U_MULTI_f___________false_valid_free_i__fooErr3RequiresViolation, mainErr1RequiresViolation, mainErr6AssertViolationMEMORY_FREE, mainErr4AssertViolationMEMORY_FREE, mainErr10AssertViolationMEMORY_FREE, mainErr11AssertViolationMEMORY_FREE, mainErr0RequiresViolation, mainErr12EnsuresViolationMEMORY_LEAK, mainErr3RequiresViolation, mainErr7AssertViolationMEMORY_FREE, mainErr9AssertViolationMEMORY_FREE, mainErr2RequiresViolation, mainErr8AssertViolationMEMORY_FREE, mainErr5AssertViolationMEMORY_FREE]=== [2018-04-11 16:15:19,670 INFO L82 PathProgramCache]: Analyzing trace with hash 639782267, now seen corresponding path program 1 times [2018-04-11 16:15:19,671 INFO L213 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS_NO_ARRAY [2018-04-11 16:15:19,671 INFO L68 tionRefinementEngine]: Using refinement strategy SmtInterpolRefinementStrategy [2018-04-11 16:15:19,671 INFO L119 rtionOrderModulation]: Craig nested/tree interpolation forces the following order [2018-04-11 16:15:19,671 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-04-11 16:15:19,671 INFO L119 rtionOrderModulation]: Craig nested/tree interpolation forces the following order [2018-04-11 16:15:19,683 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-04-11 16:15:19,684 WARN L137 erpolLogProxyWrapper]: Using partial proofs (cut at CNF-level). Set option :produce-proofs to true to get complete proofs. [2018-04-11 16:15:19,695 INFO L431 seRefinementStrategy]: Interpolation failed due to KNOWN_IGNORE: Unknown lemma type! [2018-04-11 16:15:19,696 INFO L308 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2018-04-11 16:15:19,696 INFO L213 ckRefinementStrategy]: Switched to mode SMTINTERPOL_FP [2018-04-11 16:15:19,696 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-04-11 16:15:19,718 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-04-11 16:15:19,722 INFO L270 TraceCheckSpWp]: Computing forward predicates... [2018-04-11 16:15:19,734 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 [2018-04-11 16:15:19,735 INFO L267 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2018-04-11 16:15:19,738 INFO L267 ElimStorePlain]: Start of recursive call 1: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-04-11 16:15:19,739 INFO L202 ElimStorePlain]: Needed 2 recursive calls to eliminate 1 variables, input treesize:15, output treesize:14 [2018-04-11 16:15:19,756 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 1 select indices, 1 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 16 treesize of output 15 [2018-04-11 16:15:19,757 INFO L267 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2018-04-11 16:15:19,764 INFO L267 ElimStorePlain]: Start of recursive call 1: 2 dim-0 vars, 1 dim-1 vars, End of recursive call: 2 dim-0 vars, and 1 xjuncts. [2018-04-11 16:15:19,764 INFO L202 ElimStorePlain]: Needed 2 recursive calls to eliminate 3 variables, input treesize:22, output treesize:21 [2018-04-11 16:15:19,852 INFO L134 CoverageAnalysis]: Checked inductivity of 6 backedges. 3 proven. 3 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-04-11 16:15:19,852 INFO L320 seRefinementStrategy]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2018-04-11 16:15:19,852 INFO L335 seRefinementStrategy]: Number of different interpolants: perfect sequences [] imperfect sequences [9] total 9 [2018-04-11 16:15:19,852 INFO L442 AbstractCegarLoop]: Interpolant automaton has 10 states [2018-04-11 16:15:19,853 INFO L132 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2018-04-11 16:15:19,853 INFO L133 InterpolantAutomaton]: CoverageRelationStatistics Valid=27, Invalid=63, Unknown=0, NotChecked=0, Total=90 [2018-04-11 16:15:19,853 INFO L87 Difference]: Start difference. First operand 79 states and 83 transitions. Second operand 10 states. [2018-04-11 16:15:20,104 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-04-11 16:15:20,104 INFO L93 Difference]: Finished difference Result 113 states and 117 transitions. [2018-04-11 16:15:20,104 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2018-04-11 16:15:20,104 INFO L78 Accepts]: Start accepts. Automaton has 10 states. Word has length 27 [2018-04-11 16:15:20,104 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-04-11 16:15:20,105 INFO L225 Difference]: With dead ends: 113 [2018-04-11 16:15:20,105 INFO L226 Difference]: Without dead ends: 113 [2018-04-11 16:15:20,105 INFO L567 BasicCegarLoop]: 0 DeclaredPredicates, 30 GetRequests, 18 SyntacticMatches, 0 SemanticMatches, 12 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 23 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=57, Invalid=125, Unknown=0, NotChecked=0, Total=182 [2018-04-11 16:15:20,106 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 113 states. [2018-04-11 16:15:20,109 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 113 to 85. [2018-04-11 16:15:20,109 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 85 states. [2018-04-11 16:15:20,110 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 85 states to 85 states and 89 transitions. [2018-04-11 16:15:20,110 INFO L78 Accepts]: Start accepts. Automaton has 85 states and 89 transitions. Word has length 27 [2018-04-11 16:15:20,110 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-04-11 16:15:20,110 INFO L459 AbstractCegarLoop]: Abstraction has 85 states and 89 transitions. [2018-04-11 16:15:20,110 INFO L460 AbstractCegarLoop]: Interpolant automaton has 10 states. [2018-04-11 16:15:20,110 INFO L276 IsEmpty]: Start isEmpty. Operand 85 states and 89 transitions. [2018-04-11 16:15:20,111 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 30 [2018-04-11 16:15:20,111 INFO L347 BasicCegarLoop]: Found error trace [2018-04-11 16:15:20,111 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] [2018-04-11 16:15:20,111 INFO L408 AbstractCegarLoop]: === Iteration 8 === [__U_MULTI_f___________false_valid_free_i__fooErr2RequiresViolation, __U_MULTI_f___________false_valid_free_i__fooErr0RequiresViolation, __U_MULTI_f___________false_valid_free_i__fooErr1RequiresViolation, __U_MULTI_f___________false_valid_free_i__fooErr3RequiresViolation, mainErr1RequiresViolation, mainErr6AssertViolationMEMORY_FREE, mainErr4AssertViolationMEMORY_FREE, mainErr10AssertViolationMEMORY_FREE, mainErr11AssertViolationMEMORY_FREE, mainErr0RequiresViolation, mainErr12EnsuresViolationMEMORY_LEAK, mainErr3RequiresViolation, mainErr7AssertViolationMEMORY_FREE, mainErr9AssertViolationMEMORY_FREE, mainErr2RequiresViolation, mainErr8AssertViolationMEMORY_FREE, mainErr5AssertViolationMEMORY_FREE]=== [2018-04-11 16:15:20,111 INFO L82 PathProgramCache]: Analyzing trace with hash -422900185, now seen corresponding path program 1 times [2018-04-11 16:15:20,112 INFO L213 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS_NO_ARRAY [2018-04-11 16:15:20,112 INFO L68 tionRefinementEngine]: Using refinement strategy SmtInterpolRefinementStrategy [2018-04-11 16:15:20,113 INFO L119 rtionOrderModulation]: Craig nested/tree interpolation forces the following order [2018-04-11 16:15:20,113 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-04-11 16:15:20,113 INFO L119 rtionOrderModulation]: Craig nested/tree interpolation forces the following order [2018-04-11 16:15:20,120 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-04-11 16:15:20,121 WARN L137 erpolLogProxyWrapper]: Using partial proofs (cut at CNF-level). Set option :produce-proofs to true to get complete proofs. [2018-04-11 16:15:20,138 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2018-04-11 16:15:20,138 INFO L320 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-04-11 16:15:20,138 INFO L335 seRefinementStrategy]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2018-04-11 16:15:20,138 INFO L442 AbstractCegarLoop]: Interpolant automaton has 4 states [2018-04-11 16:15:20,139 INFO L132 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2018-04-11 16:15:20,139 INFO L133 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2018-04-11 16:15:20,139 INFO L87 Difference]: Start difference. First operand 85 states and 89 transitions. Second operand 4 states. [2018-04-11 16:15:20,166 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-04-11 16:15:20,166 INFO L93 Difference]: Finished difference Result 83 states and 87 transitions. [2018-04-11 16:15:20,166 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2018-04-11 16:15:20,167 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 29 [2018-04-11 16:15:20,167 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-04-11 16:15:20,167 INFO L225 Difference]: With dead ends: 83 [2018-04-11 16:15:20,168 INFO L226 Difference]: Without dead ends: 83 [2018-04-11 16:15:20,168 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 [2018-04-11 16:15:20,168 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 83 states. [2018-04-11 16:15:20,179 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 83 to 83. [2018-04-11 16:15:20,180 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 83 states. [2018-04-11 16:15:20,180 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 83 states to 83 states and 87 transitions. [2018-04-11 16:15:20,180 INFO L78 Accepts]: Start accepts. Automaton has 83 states and 87 transitions. Word has length 29 [2018-04-11 16:15:20,181 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-04-11 16:15:20,181 INFO L459 AbstractCegarLoop]: Abstraction has 83 states and 87 transitions. [2018-04-11 16:15:20,181 INFO L460 AbstractCegarLoop]: Interpolant automaton has 4 states. [2018-04-11 16:15:20,181 INFO L276 IsEmpty]: Start isEmpty. Operand 83 states and 87 transitions. [2018-04-11 16:15:20,182 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 30 [2018-04-11 16:15:20,182 INFO L347 BasicCegarLoop]: Found error trace [2018-04-11 16:15:20,182 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] [2018-04-11 16:15:20,182 INFO L408 AbstractCegarLoop]: === Iteration 9 === [__U_MULTI_f___________false_valid_free_i__fooErr2RequiresViolation, __U_MULTI_f___________false_valid_free_i__fooErr0RequiresViolation, __U_MULTI_f___________false_valid_free_i__fooErr1RequiresViolation, __U_MULTI_f___________false_valid_free_i__fooErr3RequiresViolation, mainErr1RequiresViolation, mainErr6AssertViolationMEMORY_FREE, mainErr4AssertViolationMEMORY_FREE, mainErr10AssertViolationMEMORY_FREE, mainErr11AssertViolationMEMORY_FREE, mainErr0RequiresViolation, mainErr12EnsuresViolationMEMORY_LEAK, mainErr3RequiresViolation, mainErr7AssertViolationMEMORY_FREE, mainErr9AssertViolationMEMORY_FREE, mainErr2RequiresViolation, mainErr8AssertViolationMEMORY_FREE, mainErr5AssertViolationMEMORY_FREE]=== [2018-04-11 16:15:20,182 INFO L82 PathProgramCache]: Analyzing trace with hash -422900184, now seen corresponding path program 1 times [2018-04-11 16:15:20,182 INFO L213 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS_NO_ARRAY [2018-04-11 16:15:20,182 INFO L68 tionRefinementEngine]: Using refinement strategy SmtInterpolRefinementStrategy [2018-04-11 16:15:20,183 INFO L119 rtionOrderModulation]: Craig nested/tree interpolation forces the following order [2018-04-11 16:15:20,183 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-04-11 16:15:20,183 INFO L119 rtionOrderModulation]: Craig nested/tree interpolation forces the following order [2018-04-11 16:15:20,190 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-04-11 16:15:20,191 WARN L137 erpolLogProxyWrapper]: Using partial proofs (cut at CNF-level). Set option :produce-proofs to true to get complete proofs. [2018-04-11 16:15:20,252 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2018-04-11 16:15:20,252 INFO L320 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-04-11 16:15:20,252 INFO L335 seRefinementStrategy]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2018-04-11 16:15:20,252 INFO L442 AbstractCegarLoop]: Interpolant automaton has 7 states [2018-04-11 16:15:20,252 INFO L132 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2018-04-11 16:15:20,252 INFO L133 InterpolantAutomaton]: CoverageRelationStatistics Valid=17, Invalid=25, Unknown=0, NotChecked=0, Total=42 [2018-04-11 16:15:20,253 INFO L87 Difference]: Start difference. First operand 83 states and 87 transitions. Second operand 7 states. [2018-04-11 16:15:20,318 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-04-11 16:15:20,318 INFO L93 Difference]: Finished difference Result 73 states and 76 transitions. [2018-04-11 16:15:20,318 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2018-04-11 16:15:20,318 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 29 [2018-04-11 16:15:20,318 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-04-11 16:15:20,319 INFO L225 Difference]: With dead ends: 73 [2018-04-11 16:15:20,319 INFO L226 Difference]: Without dead ends: 73 [2018-04-11 16:15:20,319 INFO L567 BasicCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 4 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=31, Invalid=41, Unknown=0, NotChecked=0, Total=72 [2018-04-11 16:15:20,319 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 73 states. [2018-04-11 16:15:20,321 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 73 to 73. [2018-04-11 16:15:20,321 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 73 states. [2018-04-11 16:15:20,322 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 73 states to 73 states and 76 transitions. [2018-04-11 16:15:20,322 INFO L78 Accepts]: Start accepts. Automaton has 73 states and 76 transitions. Word has length 29 [2018-04-11 16:15:20,322 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-04-11 16:15:20,322 INFO L459 AbstractCegarLoop]: Abstraction has 73 states and 76 transitions. [2018-04-11 16:15:20,322 INFO L460 AbstractCegarLoop]: Interpolant automaton has 7 states. [2018-04-11 16:15:20,322 INFO L276 IsEmpty]: Start isEmpty. Operand 73 states and 76 transitions. [2018-04-11 16:15:20,323 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 32 [2018-04-11 16:15:20,323 INFO L347 BasicCegarLoop]: Found error trace [2018-04-11 16:15:20,323 INFO L355 BasicCegarLoop]: trace histogram [3, 3, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-04-11 16:15:20,323 INFO L408 AbstractCegarLoop]: === Iteration 10 === [__U_MULTI_f___________false_valid_free_i__fooErr2RequiresViolation, __U_MULTI_f___________false_valid_free_i__fooErr0RequiresViolation, __U_MULTI_f___________false_valid_free_i__fooErr1RequiresViolation, __U_MULTI_f___________false_valid_free_i__fooErr3RequiresViolation, mainErr1RequiresViolation, mainErr6AssertViolationMEMORY_FREE, mainErr4AssertViolationMEMORY_FREE, mainErr10AssertViolationMEMORY_FREE, mainErr11AssertViolationMEMORY_FREE, mainErr0RequiresViolation, mainErr12EnsuresViolationMEMORY_LEAK, mainErr3RequiresViolation, mainErr7AssertViolationMEMORY_FREE, mainErr9AssertViolationMEMORY_FREE, mainErr2RequiresViolation, mainErr8AssertViolationMEMORY_FREE, mainErr5AssertViolationMEMORY_FREE]=== [2018-04-11 16:15:20,323 INFO L82 PathProgramCache]: Analyzing trace with hash -1998367150, now seen corresponding path program 2 times [2018-04-11 16:15:20,323 INFO L213 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS_NO_ARRAY [2018-04-11 16:15:20,323 INFO L68 tionRefinementEngine]: Using refinement strategy SmtInterpolRefinementStrategy [2018-04-11 16:15:20,323 INFO L119 rtionOrderModulation]: Craig nested/tree interpolation forces the following order [2018-04-11 16:15:20,324 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-04-11 16:15:20,324 INFO L119 rtionOrderModulation]: Craig nested/tree interpolation forces the following order [2018-04-11 16:15:20,328 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-04-11 16:15:20,329 WARN L137 erpolLogProxyWrapper]: Using partial proofs (cut at CNF-level). Set option :produce-proofs to true to get complete proofs. [2018-04-11 16:15:20,377 INFO L134 CoverageAnalysis]: Checked inductivity of 13 backedges. 5 proven. 8 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-04-11 16:15:20,377 INFO L308 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2018-04-11 16:15:20,377 INFO L213 ckRefinementStrategy]: Switched to mode SMTINTERPOL_FP [2018-04-11 16:15:20,378 INFO L103 rtionOrderModulation]: Keeping assertion order OUTSIDE_LOOP_FIRST1 [2018-04-11 16:15:20,398 INFO L242 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2018-04-11 16:15:20,399 INFO L243 tOrderPrioritization]: Conjunction of SSA is unsat [2018-04-11 16:15:20,401 INFO L270 TraceCheckSpWp]: Computing forward predicates... [2018-04-11 16:15:20,446 INFO L134 CoverageAnalysis]: Checked inductivity of 13 backedges. 10 proven. 3 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-04-11 16:15:20,446 INFO L320 seRefinementStrategy]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2018-04-11 16:15:20,446 INFO L335 seRefinementStrategy]: Number of different interpolants: perfect sequences [] imperfect sequences [9, 7] total 12 [2018-04-11 16:15:20,447 INFO L442 AbstractCegarLoop]: Interpolant automaton has 12 states [2018-04-11 16:15:20,447 INFO L132 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2018-04-11 16:15:20,447 INFO L133 InterpolantAutomaton]: CoverageRelationStatistics Valid=33, Invalid=99, Unknown=0, NotChecked=0, Total=132 [2018-04-11 16:15:20,447 INFO L87 Difference]: Start difference. First operand 73 states and 76 transitions. Second operand 12 states. [2018-04-11 16:15:20,676 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-04-11 16:15:20,676 INFO L93 Difference]: Finished difference Result 128 states and 130 transitions. [2018-04-11 16:15:20,676 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2018-04-11 16:15:20,676 INFO L78 Accepts]: Start accepts. Automaton has 12 states. Word has length 31 [2018-04-11 16:15:20,677 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-04-11 16:15:20,677 INFO L225 Difference]: With dead ends: 128 [2018-04-11 16:15:20,677 INFO L226 Difference]: Without dead ends: 128 [2018-04-11 16:15:20,678 INFO L567 BasicCegarLoop]: 0 DeclaredPredicates, 48 GetRequests, 29 SyntacticMatches, 1 SemanticMatches, 18 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 56 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=102, Invalid=278, Unknown=0, NotChecked=0, Total=380 [2018-04-11 16:15:20,678 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 128 states. [2018-04-11 16:15:20,680 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 128 to 103. [2018-04-11 16:15:20,681 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 103 states. [2018-04-11 16:15:20,681 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 103 states to 103 states and 108 transitions. [2018-04-11 16:15:20,681 INFO L78 Accepts]: Start accepts. Automaton has 103 states and 108 transitions. Word has length 31 [2018-04-11 16:15:20,681 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-04-11 16:15:20,682 INFO L459 AbstractCegarLoop]: Abstraction has 103 states and 108 transitions. [2018-04-11 16:15:20,682 INFO L460 AbstractCegarLoop]: Interpolant automaton has 12 states. [2018-04-11 16:15:20,682 INFO L276 IsEmpty]: Start isEmpty. Operand 103 states and 108 transitions. [2018-04-11 16:15:20,683 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 35 [2018-04-11 16:15:20,683 INFO L347 BasicCegarLoop]: Found error trace [2018-04-11 16:15:20,683 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, 1, 1, 1, 1, 1] [2018-04-11 16:15:20,684 INFO L408 AbstractCegarLoop]: === Iteration 11 === [__U_MULTI_f___________false_valid_free_i__fooErr2RequiresViolation, __U_MULTI_f___________false_valid_free_i__fooErr0RequiresViolation, __U_MULTI_f___________false_valid_free_i__fooErr1RequiresViolation, __U_MULTI_f___________false_valid_free_i__fooErr3RequiresViolation, mainErr1RequiresViolation, mainErr6AssertViolationMEMORY_FREE, mainErr4AssertViolationMEMORY_FREE, mainErr10AssertViolationMEMORY_FREE, mainErr11AssertViolationMEMORY_FREE, mainErr0RequiresViolation, mainErr12EnsuresViolationMEMORY_LEAK, mainErr3RequiresViolation, mainErr7AssertViolationMEMORY_FREE, mainErr9AssertViolationMEMORY_FREE, mainErr2RequiresViolation, mainErr8AssertViolationMEMORY_FREE, mainErr5AssertViolationMEMORY_FREE]=== [2018-04-11 16:15:20,684 INFO L82 PathProgramCache]: Analyzing trace with hash -917258675, now seen corresponding path program 1 times [2018-04-11 16:15:20,684 INFO L213 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS_NO_ARRAY [2018-04-11 16:15:20,685 INFO L68 tionRefinementEngine]: Using refinement strategy SmtInterpolRefinementStrategy [2018-04-11 16:15:20,685 INFO L119 rtionOrderModulation]: Craig nested/tree interpolation forces the following order [2018-04-11 16:15:20,685 INFO L101 rtionOrderModulation]: Changing assertion order to NOT_INCREMENTALLY [2018-04-11 16:15:20,685 INFO L119 rtionOrderModulation]: Craig nested/tree interpolation forces the following order [2018-04-11 16:15:20,692 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2018-04-11 16:15:20,701 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2018-04-11 16:15:20,718 INFO L421 BasicCegarLoop]: Counterexample might be feasible [2018-04-11 16:15:20,753 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 11.04 04:15:20 BoogieIcfgContainer [2018-04-11 16:15:20,753 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2018-04-11 16:15:20,754 INFO L168 Benchmark]: Toolchain (without parser) took 2978.55 ms. Allocated memory was 397.4 MB in the beginning and 684.2 MB in the end (delta: 286.8 MB). Free memory was 331.4 MB in the beginning and 600.7 MB in the end (delta: -269.4 MB). Peak memory consumption was 17.4 MB. Max. memory is 5.3 GB. [2018-04-11 16:15:20,755 INFO L168 Benchmark]: CDTParser took 0.14 ms. Allocated memory is still 397.4 MB. Free memory is still 357.2 MB. There was no memory consumed. Max. memory is 5.3 GB. [2018-04-11 16:15:20,755 INFO L168 Benchmark]: CACSL2BoogieTranslator took 233.32 ms. Allocated memory is still 397.4 MB. Free memory was 330.0 MB in the beginning and 306.1 MB in the end (delta: 24.0 MB). Peak memory consumption was 24.0 MB. Max. memory is 5.3 GB. [2018-04-11 16:15:20,755 INFO L168 Benchmark]: Boogie Preprocessor took 43.39 ms. Allocated memory is still 397.4 MB. Free memory was 306.1 MB in the beginning and 304.8 MB in the end (delta: 1.3 MB). Peak memory consumption was 1.3 MB. Max. memory is 5.3 GB. [2018-04-11 16:15:20,755 INFO L168 Benchmark]: RCFGBuilder took 368.50 ms. Allocated memory was 397.4 MB in the beginning and 601.9 MB in the end (delta: 204.5 MB). Free memory was 304.8 MB in the beginning and 537.0 MB in the end (delta: -232.2 MB). Peak memory consumption was 24.7 MB. Max. memory is 5.3 GB. [2018-04-11 16:15:20,756 INFO L168 Benchmark]: TraceAbstraction took 2330.03 ms. Allocated memory was 601.9 MB in the beginning and 684.2 MB in the end (delta: 82.3 MB). Free memory was 537.0 MB in the beginning and 600.7 MB in the end (delta: -63.8 MB). Peak memory consumption was 18.6 MB. Max. memory is 5.3 GB. [2018-04-11 16:15:20,757 INFO L344 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.14 ms. Allocated memory is still 397.4 MB. Free memory is still 357.2 MB. There was no memory consumed. Max. memory is 5.3 GB. * CACSL2BoogieTranslator took 233.32 ms. Allocated memory is still 397.4 MB. Free memory was 330.0 MB in the beginning and 306.1 MB in the end (delta: 24.0 MB). Peak memory consumption was 24.0 MB. Max. memory is 5.3 GB. * Boogie Preprocessor took 43.39 ms. Allocated memory is still 397.4 MB. Free memory was 306.1 MB in the beginning and 304.8 MB in the end (delta: 1.3 MB). Peak memory consumption was 1.3 MB. Max. memory is 5.3 GB. * RCFGBuilder took 368.50 ms. Allocated memory was 397.4 MB in the beginning and 601.9 MB in the end (delta: 204.5 MB). Free memory was 304.8 MB in the beginning and 537.0 MB in the end (delta: -232.2 MB). Peak memory consumption was 24.7 MB. Max. memory is 5.3 GB. * TraceAbstraction took 2330.03 ms. Allocated memory was 601.9 MB in the beginning and 684.2 MB in the end (delta: 82.3 MB). Free memory was 537.0 MB in the beginning and 600.7 MB in the end (delta: -63.8 MB). Peak memory consumption was 18.6 MB. Max. memory is 5.3 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - CounterExampleResult [Line: 643]: free of unallocated memory possible free of unallocated memory possible We found a FailurePath: [L619] int *a, *b; [L619] int *a, *b; [L620] int n; VAL [\old(a)=7, \old(a)=10, \old(a)=5, \old(a)=11, \old(n)=9, 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))={13:0}, 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={13:0}, malloc(n * sizeof(*a))={13:0}, 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={0:0}, a={13:0}, malloc(n * sizeof(*a))={13:0}, malloc(n * sizeof(*b))={8:0}, 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={8:4}, a={13:0}, b++={8:0}, malloc(n * sizeof(*a))={13:0}, malloc(n * sizeof(*b))={8:0}, n=1] [L638] FCALL *b++ = 0 VAL [\old(a)=0, \old(a)=0, \old(a)=0, \old(a)=0, \old(n)=0, a={13:0}, a={8:4}, b++={8:0}, malloc(n * sizeof(*a))={13:0}, malloc(n * sizeof(*b))={8:0}, n=1] [L639] CALL foo() VAL [\old(a)=0, \old(a)=0, \old(a)=0, \old(a)=0, \old(n)=0, a={8:4}, a={13:0}, 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={13:0}, a={8:4}, 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={13:0}, a={8:4}, i=0, n=1] [L626] FCALL a[i] = -1 VAL [\old(a)=0, \old(a)=0, \old(a)=0, \old(a)=0, \old(n)=0, a={13:0}, a={8:4}, 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={8:4}, a={13:0}, i=1, n=1] [L627] i = 0 VAL [\old(a)=0, \old(a)=0, \old(a)=0, \old(a)=0, \old(n)=0, a={13:0}, a={8:4}, 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={8:4}, a={13:0}, i=0, n=1] [L639] foo() VAL [\old(a)=0, \old(a)=0, \old(a)=0, \old(a)=0, \old(n)=0, a={8:4}, a={13:0}, malloc(n * sizeof(*a))={13:0}, malloc(n * sizeof(*b))={8:0}, n=1] [L640] FCALL b[-1] VAL [\old(a)=0, \old(a)=0, \old(a)=0, \old(a)=0, \old(n)=0, a={13:0}, a={8:4}, b[-1]=0, malloc(n * sizeof(*a))={13:0}, malloc(n * sizeof(*b))={8:0}, n=1] [L640] COND FALSE !(b[-1]) [L643] free(a) VAL [\old(a)=0, \old(a)=0, \old(a)=0, \old(a)=0, \old(n)=0, a={13:0}, a={8:4}, malloc(n * sizeof(*a))={13:0}, malloc(n * sizeof(*b))={8:0}, n=1] [L643] free(a) VAL [\old(a)=0, \old(a)=0, \old(a)=0, \old(a)=0, \old(n)=0, a={8:4}, a={13:0}, malloc(n * sizeof(*a))={13:0}, malloc(n * sizeof(*b))={8:0}, n=1] [L643] FCALL free(a) VAL [\old(a)=0, \old(a)=0, \old(a)=0, \old(a)=0, \old(n)=0, a={8:4}, a={13:0}, malloc(n * sizeof(*a))={13:0}, malloc(n * sizeof(*b))={8:0}, n=1] [L643] free(b) VAL [\old(a)=0, \old(a)=0, \old(a)=0, \old(a)=0, \old(n)=0, a={8:4}, a={13:0}, malloc(n * sizeof(*a))={13:0}, malloc(n * sizeof(*b))={8:0}, n=1] - StatisticsResult: Ultimate Automizer benchmark data CFG has 4 procedures, 64 locations, 17 error locations. UNSAFE Result, 2.2s OverallTime, 11 OverallIterations, 3 TraceHistogramMax, 1.0s AutomataDifference, 0.0s DeadEndRemovalTime, 0.0s HoareAnnotationTime, HoareTripleCheckerStatistics: 466 SDtfs, 777 SDslu, 875 SDs, 0 SdLazy, 835 SolverSat, 107 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 0.5s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 177 GetRequests, 105 SyntacticMatches, 2 SemanticMatches, 70 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 99 ImplicationChecksByTransitivity, 0.5s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=103occurred in iteration=10, 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, 10 MinimizatonAttempts, 85 StatesRemovedByMinimization, 4 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TraceCheckStatistics: 0.0s SsaConstructionTime, 0.2s SatisfiabilityAnalysisTime, 0.7s InterpolantComputationTime, 376 NumberOfCodeBlocks, 376 NumberOfCodeBlocksAsserted, 17 NumberOfCheckSat, 263 ConstructedInterpolants, 28 QuantifiedInterpolants, 36725 SizeOfPredicates, 14 NumberOfNonLiveVariables, 665 ConjunctsInSsa, 42 ConjunctsInUnsatCore, 12 InterpolantComputations, 8 PerfectInterpolantSequences, 26/42 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-free.i_svcomp-DerefFreeMemtrack-32bit-Automizer_SmtInterpol_NoArray.epf_AutomizerC.xml/Csv-Benchmark-0-2018-04-11_16-15-20-763.csv Written .csv to /home/ultimate/work/ultimate/releaseScripts/default/UAutomizer-linux/../../../releaseScripts/default/UAutomizer-linux/csv/960521-1_1_false-valid-free.i_svcomp-DerefFreeMemtrack-32bit-Automizer_SmtInterpol_NoArray.epf_AutomizerC.xml/Csv-TraceAbstractionBenchmarks-0-2018-04-11_16-15-20-763.csv Received shutdown request...