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 -tc ../../../trunk/examples/toolchains/AutomizerC.xml -s ../../../trunk/examples/settings/ai/eq-bench/svcomp-DerefFreeMemtrack-32bit-Automizer_Fixed_noBitfields+AI_EQ_SS.epf -i ../../../trunk/examples/svcomp/list-ext-properties/960521-1_1_false-valid-free.i -------------------------------------------------------------------------------- This is Ultimate 0.1.23-453dfda-m [2018-04-09 21:44:19,495 INFO L170 SettingsManager]: Resetting all preferences to default values... [2018-04-09 21:44:19,497 INFO L174 SettingsManager]: Resetting UltimateCore preferences to default values [2018-04-09 21:44:19,512 INFO L177 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2018-04-09 21:44:19,512 INFO L174 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2018-04-09 21:44:19,513 INFO L174 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2018-04-09 21:44:19,514 INFO L174 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2018-04-09 21:44:19,516 INFO L174 SettingsManager]: Resetting LassoRanker preferences to default values [2018-04-09 21:44:19,518 INFO L174 SettingsManager]: Resetting Reaching Definitions preferences to default values [2018-04-09 21:44:19,519 INFO L174 SettingsManager]: Resetting SyntaxChecker preferences to default values [2018-04-09 21:44:19,520 INFO L177 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2018-04-09 21:44:19,520 INFO L174 SettingsManager]: Resetting LTL2Aut preferences to default values [2018-04-09 21:44:19,521 INFO L174 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2018-04-09 21:44:19,523 INFO L174 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2018-04-09 21:44:19,523 INFO L174 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2018-04-09 21:44:19,526 INFO L174 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2018-04-09 21:44:19,528 INFO L174 SettingsManager]: Resetting CodeCheck preferences to default values [2018-04-09 21:44:19,530 INFO L174 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2018-04-09 21:44:19,531 INFO L174 SettingsManager]: Resetting RCFGBuilder preferences to default values [2018-04-09 21:44:19,532 INFO L174 SettingsManager]: Resetting TraceAbstraction preferences to default values [2018-04-09 21:44:19,534 INFO L177 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2018-04-09 21:44:19,535 INFO L177 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2018-04-09 21:44:19,535 INFO L174 SettingsManager]: Resetting IcfgTransformer preferences to default values [2018-04-09 21:44:19,536 INFO L174 SettingsManager]: Resetting Boogie Printer preferences to default values [2018-04-09 21:44:19,537 INFO L174 SettingsManager]: Resetting Witness Printer preferences to default values [2018-04-09 21:44:19,538 INFO L177 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2018-04-09 21:44:19,538 INFO L174 SettingsManager]: Resetting CDTParser preferences to default values [2018-04-09 21:44:19,539 INFO L174 SettingsManager]: Resetting PEA to Boogie preferences to default values [2018-04-09 21:44:19,540 INFO L177 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2018-04-09 21:44:19,540 INFO L174 SettingsManager]: Resetting Witness Parser preferences to default values [2018-04-09 21:44:19,541 INFO L181 SettingsManager]: Finished resetting all preferences to default values... [2018-04-09 21:44:19,541 INFO L98 SettingsManager]: Beginning loading settings from /storage/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/settings/ai/eq-bench/svcomp-DerefFreeMemtrack-32bit-Automizer_Fixed_noBitfields+AI_EQ_SS.epf [2018-04-09 21:44:19,565 INFO L110 SettingsManager]: Loading preferences was successful [2018-04-09 21:44:19,565 INFO L112 SettingsManager]: Preferences different from defaults after loading the file: [2018-04-09 21:44:19,565 INFO L131 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2018-04-09 21:44:19,565 INFO L133 SettingsManager]: * ultimate.logging.details=de.uni_freiburg.informatik.ultimate.plugins.icfgtransformation=DEBUG; [2018-04-09 21:44:19,566 INFO L131 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2018-04-09 21:44:19,566 INFO L133 SettingsManager]: * to procedures, called more than once=true [2018-04-09 21:44:19,567 INFO L131 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2018-04-09 21:44:19,567 INFO L133 SettingsManager]: * Abstract domain for RCFG-of-the-future=VPDomain [2018-04-09 21:44:19,567 INFO L133 SettingsManager]: * Parallel states before merging=1 [2018-04-09 21:44:19,567 INFO L133 SettingsManager]: * Use the RCFG-of-the-future interface=true [2018-04-09 21:44:19,567 INFO L131 SettingsManager]: Preferences of LTL2Aut differ from their defaults: [2018-04-09 21:44:19,568 INFO L133 SettingsManager]: * Property to check=[] a a: x > 42 [2018-04-09 21:44:19,568 INFO L131 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2018-04-09 21:44:19,568 INFO L133 SettingsManager]: * sizeof long=4 [2018-04-09 21:44:19,568 INFO L133 SettingsManager]: * Check unreachability of error function in SV-COMP mode=false [2018-04-09 21:44:19,569 INFO L133 SettingsManager]: * Overapproximate operations on floating types=true [2018-04-09 21:44:19,569 INFO L133 SettingsManager]: * sizeof POINTER=4 [2018-04-09 21:44:19,569 INFO L133 SettingsManager]: * Check division by zero=IGNORE [2018-04-09 21:44:19,569 INFO L133 SettingsManager]: * Check for the main procedure if all allocated memory was freed=true [2018-04-09 21:44:19,569 INFO L133 SettingsManager]: * SV-COMP memtrack compatibility mode=true [2018-04-09 21:44:19,569 INFO L133 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2018-04-09 21:44:19,570 INFO L133 SettingsManager]: * sizeof long double=12 [2018-04-09 21:44:19,570 INFO L131 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2018-04-09 21:44:19,570 INFO L133 SettingsManager]: * Size of a code block=SingleStatement [2018-04-09 21:44:19,570 INFO L133 SettingsManager]: * Add additional assume for each assert=false [2018-04-09 21:44:19,570 INFO L133 SettingsManager]: * SMT solver=External_DefaultMode [2018-04-09 21:44:19,571 INFO L133 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2018-04-09 21:44:19,571 INFO L131 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2018-04-09 21:44:19,571 INFO L133 SettingsManager]: * Interpolant automaton=TWOTRACK [2018-04-09 21:44:19,571 INFO L133 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2018-04-09 21:44:19,571 INFO L133 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2018-04-09 21:44:19,572 INFO L133 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2018-04-09 21:44:19,572 INFO L133 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2018-04-09 21:44:19,572 INFO L133 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2018-04-09 21:44:19,573 INFO L131 SettingsManager]: Preferences of IcfgTransformer differ from their defaults: [2018-04-09 21:44:19,573 INFO L133 SettingsManager]: * TransformationType=HEAP_SEPARATOR [2018-04-09 21:44:19,573 INFO L131 SettingsManager]: Preferences of Boogie Printer differ from their defaults: [2018-04-09 21:44:19,573 INFO L133 SettingsManager]: * Dump path:=C:\Users\alex\AppData\Local\Temp\ [2018-04-09 21:44:19,606 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2018-04-09 21:44:19,619 INFO L266 ainManager$Toolchain]: [Toolchain 1]: Parser(s) successfully (re)initialized [2018-04-09 21:44:19,623 INFO L222 ainManager$Toolchain]: [Toolchain 1]: Toolchain data selected. [2018-04-09 21:44:19,625 INFO L271 PluginConnector]: Initializing CDTParser... [2018-04-09 21:44:19,625 INFO L276 PluginConnector]: CDTParser initialized [2018-04-09 21:44:19,626 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/list-ext-properties/960521-1_1_false-valid-free.i [2018-04-09 21:44:19,956 INFO L225 CDTParser]: Created temporary CDT project at /storage/ultimate/releaseScripts/default/UAutomizer-linux/data/FLAGb62288a49 [2018-04-09 21:44:20,130 INFO L287 CDTParser]: IsIndexed: true [2018-04-09 21:44:20,131 INFO L288 CDTParser]: Found 1 translation units. [2018-04-09 21:44:20,131 INFO L168 CDTParser]: Scanning 960521-1_1_false-valid-free.i [2018-04-09 21:44:20,142 INFO L210 ultiparseSymbolTable]: Include resolver: [2018-04-09 21:44:20,142 INFO L215 ultiparseSymbolTable]: [2018-04-09 21:44:20,142 INFO L218 ultiparseSymbolTable]: Function table: [2018-04-09 21:44:20,142 INFO L221 ultiparseSymbolTable]: Function definition of __U_MULTI_f___________false_valid_free_i__foo ('foo') in 960521-1_1_false-valid-free.i [2018-04-09 21:44:20,142 INFO L221 ultiparseSymbolTable]: Function definition of null ('main') in 960521-1_1_false-valid-free.i [2018-04-09 21:44:20,142 INFO L227 ultiparseSymbolTable]: Global variable table: [2018-04-09 21:44:20,143 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 [2018-04-09 21:44:20,143 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 [2018-04-09 21:44:20,143 INFO L230 ultiparseSymbolTable]: Global variable declaration of __U_MULTI_f___________false_valid_free_i__sigset_t in 960521-1_1_false-valid-free.i [2018-04-09 21:44:20,143 INFO L230 ultiparseSymbolTable]: Global variable declaration of __U_MULTI_f___________false_valid_free_i____caddr_t in 960521-1_1_false-valid-free.i [2018-04-09 21:44:20,143 INFO L230 ultiparseSymbolTable]: Global variable declaration of __U_MULTI_f___________false_valid_free_i____u_long in 960521-1_1_false-valid-free.i [2018-04-09 21:44:20,143 INFO L230 ultiparseSymbolTable]: Global variable declaration of __U_MULTI_f___________false_valid_free_i____dev_t in 960521-1_1_false-valid-free.i [2018-04-09 21:44:20,143 INFO L230 ultiparseSymbolTable]: Global variable declaration of __U_MULTI_f___________false_valid_free_i____fsblkcnt_t in 960521-1_1_false-valid-free.i [2018-04-09 21:44:20,143 INFO L230 ultiparseSymbolTable]: Global variable declaration of __U_MULTI_f___________false_valid_free_i__int16_t in 960521-1_1_false-valid-free.i [2018-04-09 21:44:20,144 INFO L230 ultiparseSymbolTable]: Global variable declaration of __U_MULTI_f___________false_valid_free_i__blkcnt_t in 960521-1_1_false-valid-free.i [2018-04-09 21:44:20,144 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 [2018-04-09 21:44:20,144 INFO L230 ultiparseSymbolTable]: Global variable declaration of __U_MULTI_f___________false_valid_free_i__u_char in 960521-1_1_false-valid-free.i [2018-04-09 21:44:20,144 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 [2018-04-09 21:44:20,144 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 [2018-04-09 21:44:20,144 INFO L230 ultiparseSymbolTable]: Global variable declaration of __U_MULTI_f___________false_valid_free_i__clock_t in 960521-1_1_false-valid-free.i [2018-04-09 21:44:20,144 INFO L230 ultiparseSymbolTable]: Global variable declaration of __U_MULTI_f___________false_valid_free_i____off_t in 960521-1_1_false-valid-free.i [2018-04-09 21:44:20,144 INFO L230 ultiparseSymbolTable]: Global variable declaration of __U_MULTI_f___________false_valid_free_i__blksize_t in 960521-1_1_false-valid-free.i [2018-04-09 21:44:20,145 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 [2018-04-09 21:44:20,145 INFO L230 ultiparseSymbolTable]: Global variable declaration of __U_MULTI_f___________false_valid_free_i____int16_t in 960521-1_1_false-valid-free.i [2018-04-09 21:44:20,145 INFO L230 ultiparseSymbolTable]: Global variable declaration of __U_MULTI_f___________false_valid_free_i____uint32_t in 960521-1_1_false-valid-free.i [2018-04-09 21:44:20,145 INFO L230 ultiparseSymbolTable]: Global variable declaration of __U_MULTI_f___________false_valid_free_i__fd_set in 960521-1_1_false-valid-free.i [2018-04-09 21:44:20,145 INFO L230 ultiparseSymbolTable]: Global variable declaration of __U_MULTI_f___________false_valid_free_i__u_long in 960521-1_1_false-valid-free.i [2018-04-09 21:44:20,145 INFO L230 ultiparseSymbolTable]: Global variable declaration of __U_MULTI_f___________false_valid_free_i____ino_t in 960521-1_1_false-valid-free.i [2018-04-09 21:44:20,145 INFO L230 ultiparseSymbolTable]: Global variable declaration of __U_MULTI_f___________false_valid_free_i__ulong in 960521-1_1_false-valid-free.i [2018-04-09 21:44:20,145 INFO L230 ultiparseSymbolTable]: Global variable declaration of __U_MULTI_f___________false_valid_free_i__caddr_t in 960521-1_1_false-valid-free.i [2018-04-09 21:44:20,145 INFO L230 ultiparseSymbolTable]: Global variable declaration of __U_MULTI_f___________false_valid_free_i____fsid_t in 960521-1_1_false-valid-free.i [2018-04-09 21:44:20,146 INFO L230 ultiparseSymbolTable]: Global variable declaration of __U_MULTI_f___________false_valid_free_i____ino64_t in 960521-1_1_false-valid-free.i [2018-04-09 21:44:20,146 INFO L230 ultiparseSymbolTable]: Global variable declaration of __U_MULTI_f___________false_valid_free_i____sigset_t in 960521-1_1_false-valid-free.i [2018-04-09 21:44:20,146 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 [2018-04-09 21:44:20,146 INFO L230 ultiparseSymbolTable]: Global variable declaration of __U_MULTI_f___________false_valid_free_i__u_int in 960521-1_1_false-valid-free.i [2018-04-09 21:44:20,146 INFO L230 ultiparseSymbolTable]: Global variable declaration of __U_MULTI_f___________false_valid_free_i__key_t in 960521-1_1_false-valid-free.i [2018-04-09 21:44:20,146 INFO L230 ultiparseSymbolTable]: Global variable declaration of __U_MULTI_f___________false_valid_free_i__fd_mask in 960521-1_1_false-valid-free.i [2018-04-09 21:44:20,146 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 [2018-04-09 21:44:20,146 INFO L230 ultiparseSymbolTable]: Global variable declaration of __U_MULTI_f___________false_valid_free_i____rlim_t in 960521-1_1_false-valid-free.i [2018-04-09 21:44:20,146 INFO L230 ultiparseSymbolTable]: Global variable declaration of __U_MULTI_f___________false_valid_free_i____timer_t in 960521-1_1_false-valid-free.i [2018-04-09 21:44:20,146 INFO L230 ultiparseSymbolTable]: Global variable declaration of __U_MULTI_f___________false_valid_free_i__div_t in 960521-1_1_false-valid-free.i [2018-04-09 21:44:20,146 INFO L230 ultiparseSymbolTable]: Global variable declaration of __U_MULTI_f___________false_valid_free_i__size_t in 960521-1_1_false-valid-free.i [2018-04-09 21:44:20,146 INFO L230 ultiparseSymbolTable]: Global variable declaration of __U_MULTI_f___________false_valid_free_i____int32_t in 960521-1_1_false-valid-free.i [2018-04-09 21:44:20,147 INFO L230 ultiparseSymbolTable]: Global variable declaration of __U_MULTI_f___________false_valid_free_i____intptr_t in 960521-1_1_false-valid-free.i [2018-04-09 21:44:20,147 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 [2018-04-09 21:44:20,147 INFO L230 ultiparseSymbolTable]: Global variable declaration of __U_MULTI_f___________false_valid_free_i____ssize_t in 960521-1_1_false-valid-free.i [2018-04-09 21:44:20,147 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 [2018-04-09 21:44:20,147 INFO L230 ultiparseSymbolTable]: Global variable declaration of __U_MULTI_f___________false_valid_free_i____clockid_t in 960521-1_1_false-valid-free.i [2018-04-09 21:44:20,147 INFO L230 ultiparseSymbolTable]: Global variable declaration of __U_MULTI_f___________false_valid_free_i__clockid_t in 960521-1_1_false-valid-free.i [2018-04-09 21:44:20,147 INFO L230 ultiparseSymbolTable]: Global variable declaration of __U_MULTI_f___________false_valid_free_i__quad_t in 960521-1_1_false-valid-free.i [2018-04-09 21:44:20,147 INFO L230 ultiparseSymbolTable]: Global variable declaration of __U_MULTI_f___________false_valid_free_i__uid_t in 960521-1_1_false-valid-free.i [2018-04-09 21:44:20,147 INFO L230 ultiparseSymbolTable]: Global variable declaration of __U_MULTI_f___________false_valid_free_i__lldiv_t in 960521-1_1_false-valid-free.i [2018-04-09 21:44:20,147 INFO L230 ultiparseSymbolTable]: Global variable declaration of __U_MULTI_f___________false_valid_free_i____id_t in 960521-1_1_false-valid-free.i [2018-04-09 21:44:20,147 INFO L230 ultiparseSymbolTable]: Global variable declaration of __U_MULTI_f___________false_valid_free_i____socklen_t in 960521-1_1_false-valid-free.i [2018-04-09 21:44:20,147 INFO L230 ultiparseSymbolTable]: Global variable declaration of __U_MULTI_f___________false_valid_free_i__pthread_t in 960521-1_1_false-valid-free.i [2018-04-09 21:44:20,148 INFO L230 ultiparseSymbolTable]: Global variable declaration of __U_MULTI_f___________false_valid_free_i__fsblkcnt_t in 960521-1_1_false-valid-free.i [2018-04-09 21:44:20,148 INFO L230 ultiparseSymbolTable]: Global variable declaration of __U_MULTI_f___________false_valid_free_i____gid_t in 960521-1_1_false-valid-free.i [2018-04-09 21:44:20,148 INFO L230 ultiparseSymbolTable]: Global variable declaration of __U_MULTI_f___________false_valid_free_i__wchar_t in 960521-1_1_false-valid-free.i [2018-04-09 21:44:20,148 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 [2018-04-09 21:44:20,148 INFO L230 ultiparseSymbolTable]: Global variable declaration of __U_MULTI_f___________false_valid_free_i____off64_t in 960521-1_1_false-valid-free.i [2018-04-09 21:44:20,148 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 [2018-04-09 21:44:20,148 INFO L230 ultiparseSymbolTable]: Global variable declaration of __U_MULTI_f___________false_valid_free_i____pid_t in 960521-1_1_false-valid-free.i [2018-04-09 21:44:20,148 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 [2018-04-09 21:44:20,148 INFO L230 ultiparseSymbolTable]: Global variable declaration of __U_MULTI_f___________false_valid_free_i____u_char in 960521-1_1_false-valid-free.i [2018-04-09 21:44:20,148 INFO L230 ultiparseSymbolTable]: Global variable declaration of __U_MULTI_f___________false_valid_free_i____suseconds_t in 960521-1_1_false-valid-free.i [2018-04-09 21:44:20,148 INFO L230 ultiparseSymbolTable]: Global variable declaration of __U_MULTI_f___________false_valid_free_i____quad_t in 960521-1_1_false-valid-free.i [2018-04-09 21:44:20,149 INFO L230 ultiparseSymbolTable]: Global variable declaration of __U_MULTI_f___________false_valid_free_i____fsblkcnt64_t in 960521-1_1_false-valid-free.i [2018-04-09 21:44:20,149 INFO L230 ultiparseSymbolTable]: Global variable declaration of __U_MULTI_f___________false_valid_free_i__ssize_t in 960521-1_1_false-valid-free.i [2018-04-09 21:44:20,149 INFO L230 ultiparseSymbolTable]: Global variable declaration of __U_MULTI_f___________false_valid_free_i__register_t in 960521-1_1_false-valid-free.i [2018-04-09 21:44:20,149 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 [2018-04-09 21:44:20,149 INFO L230 ultiparseSymbolTable]: Global variable declaration of __U_MULTI_f___________false_valid_free_i____uint64_t in 960521-1_1_false-valid-free.i [2018-04-09 21:44:20,149 INFO L230 ultiparseSymbolTable]: Global variable declaration of __U_MULTI_f___________false_valid_free_i____swblk_t in 960521-1_1_false-valid-free.i [2018-04-09 21:44:20,149 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 [2018-04-09 21:44:20,149 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 [2018-04-09 21:44:20,150 INFO L230 ultiparseSymbolTable]: Global variable declaration of __U_MULTI_f___________false_valid_free_i____nlink_t in 960521-1_1_false-valid-free.i [2018-04-09 21:44:20,150 INFO L230 ultiparseSymbolTable]: Global variable declaration of __U_MULTI_f___________false_valid_free_i__timer_t in 960521-1_1_false-valid-free.i [2018-04-09 21:44:20,150 INFO L230 ultiparseSymbolTable]: Global variable declaration of __U_MULTI_f___________false_valid_free_i____fd_mask in 960521-1_1_false-valid-free.i [2018-04-09 21:44:20,150 INFO L230 ultiparseSymbolTable]: Global variable declaration of __U_MULTI_f___________false_valid_free_i__off_t in 960521-1_1_false-valid-free.i [2018-04-09 21:44:20,150 INFO L230 ultiparseSymbolTable]: Global variable declaration of __U_MULTI_f___________false_valid_free_i____int8_t in 960521-1_1_false-valid-free.i [2018-04-09 21:44:20,150 INFO L230 ultiparseSymbolTable]: Global variable declaration of __U_MULTI_f___________false_valid_free_i__uint in 960521-1_1_false-valid-free.i [2018-04-09 21:44:20,150 INFO L230 ultiparseSymbolTable]: Global variable declaration of __U_MULTI_f___________false_valid_free_i__pid_t in 960521-1_1_false-valid-free.i [2018-04-09 21:44:20,150 INFO L230 ultiparseSymbolTable]: Global variable declaration of __U_MULTI_f___________false_valid_free_i__int32_t in 960521-1_1_false-valid-free.i [2018-04-09 21:44:20,150 INFO L230 ultiparseSymbolTable]: Global variable declaration of __U_MULTI_f___________false_valid_free_i____mode_t in 960521-1_1_false-valid-free.i [2018-04-09 21:44:20,151 INFO L230 ultiparseSymbolTable]: Global variable declaration of __U_MULTI_f___________false_valid_free_i__dev_t in 960521-1_1_false-valid-free.i [2018-04-09 21:44:20,151 INFO L230 ultiparseSymbolTable]: Global variable declaration of __U_MULTI_f___________false_valid_free_i__fsfilcnt_t in 960521-1_1_false-valid-free.i [2018-04-09 21:44:20,151 INFO L230 ultiparseSymbolTable]: Global variable declaration of __U_MULTI_f___________false_valid_free_i____blkcnt64_t in 960521-1_1_false-valid-free.i [2018-04-09 21:44:20,151 INFO L230 ultiparseSymbolTable]: Global variable declaration of __U_MULTI_f___________false_valid_free_i__id_t in 960521-1_1_false-valid-free.i [2018-04-09 21:44:20,151 INFO L230 ultiparseSymbolTable]: Global variable declaration of __U_MULTI_f___________false_valid_free_i____uid_t in 960521-1_1_false-valid-free.i [2018-04-09 21:44:20,151 INFO L230 ultiparseSymbolTable]: Global variable declaration of __U_MULTI_f___________false_valid_free_i__gid_t in 960521-1_1_false-valid-free.i [2018-04-09 21:44:20,151 INFO L230 ultiparseSymbolTable]: Global variable declaration of __U_MULTI_f___________false_valid_free_i__nlink_t in 960521-1_1_false-valid-free.i [2018-04-09 21:44:20,151 INFO L230 ultiparseSymbolTable]: Global variable declaration of __U_MULTI_f___________false_valid_free_i__u_short in 960521-1_1_false-valid-free.i [2018-04-09 21:44:20,151 INFO L230 ultiparseSymbolTable]: Global variable declaration of __U_MULTI_f___________false_valid_free_i__int64_t in 960521-1_1_false-valid-free.i [2018-04-09 21:44:20,152 INFO L230 ultiparseSymbolTable]: Global variable declaration of __U_MULTI_f___________false_valid_free_i____u_short in 960521-1_1_false-valid-free.i [2018-04-09 21:44:20,152 INFO L230 ultiparseSymbolTable]: Global variable declaration of __U_MULTI_f___________false_valid_free_i__suseconds_t in 960521-1_1_false-valid-free.i [2018-04-09 21:44:20,152 INFO L230 ultiparseSymbolTable]: Global variable declaration of __U_MULTI_f___________false_valid_free_i____blkcnt_t in 960521-1_1_false-valid-free.i [2018-04-09 21:44:20,152 INFO L230 ultiparseSymbolTable]: Global variable declaration of __U_MULTI_f___________false_valid_free_i____fsfilcnt_t in 960521-1_1_false-valid-free.i [2018-04-09 21:44:20,152 INFO L230 ultiparseSymbolTable]: Global variable declaration of __U_MULTI_f___________false_valid_free_i____WAIT_STATUS in 960521-1_1_false-valid-free.i [2018-04-09 21:44:20,152 INFO L230 ultiparseSymbolTable]: Global variable declaration of __U_MULTI_f___________false_valid_free_i__mode_t in 960521-1_1_false-valid-free.i [2018-04-09 21:44:20,152 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 [2018-04-09 21:44:20,152 INFO L230 ultiparseSymbolTable]: Global variable declaration of __U_MULTI_f___________false_valid_free_i____clock_t in 960521-1_1_false-valid-free.i [2018-04-09 21:44:20,152 INFO L230 ultiparseSymbolTable]: Global variable declaration of __U_MULTI_f___________false_valid_free_i____u_int in 960521-1_1_false-valid-free.i [2018-04-09 21:44:20,153 INFO L230 ultiparseSymbolTable]: Global variable declaration of __U_MULTI_f___________false_valid_free_i__fsid_t in 960521-1_1_false-valid-free.i [2018-04-09 21:44:20,153 INFO L230 ultiparseSymbolTable]: Global variable declaration of __U_MULTI_f___________false_valid_free_i____loff_t in 960521-1_1_false-valid-free.i [2018-04-09 21:44:20,153 INFO L230 ultiparseSymbolTable]: Global variable declaration of __U_MULTI_f___________false_valid_free_i__time_t in 960521-1_1_false-valid-free.i [2018-04-09 21:44:20,153 INFO L230 ultiparseSymbolTable]: Global variable declaration of __U_MULTI_f___________false_valid_free_i__n in 960521-1_1_false-valid-free.i [2018-04-09 21:44:20,153 INFO L230 ultiparseSymbolTable]: Global variable declaration of __U_MULTI_f___________false_valid_free_i__daddr_t in 960521-1_1_false-valid-free.i [2018-04-09 21:44:20,153 INFO L230 ultiparseSymbolTable]: Global variable declaration of __U_MULTI_f___________false_valid_free_i__a in 960521-1_1_false-valid-free.i [2018-04-09 21:44:20,153 INFO L230 ultiparseSymbolTable]: Global variable declaration of __U_MULTI_f___________false_valid_free_i__ino_t in 960521-1_1_false-valid-free.i [2018-04-09 21:44:20,153 INFO L230 ultiparseSymbolTable]: Global variable declaration of __U_MULTI_f___________false_valid_free_i__b in 960521-1_1_false-valid-free.i [2018-04-09 21:44:20,154 INFO L230 ultiparseSymbolTable]: Global variable declaration of __U_MULTI_f___________false_valid_free_i____rlim64_t in 960521-1_1_false-valid-free.i [2018-04-09 21:44:20,154 INFO L230 ultiparseSymbolTable]: Global variable declaration of __U_MULTI_f___________false_valid_free_i__ldiv_t in 960521-1_1_false-valid-free.i [2018-04-09 21:44:20,154 INFO L230 ultiparseSymbolTable]: Global variable declaration of __U_MULTI_f___________false_valid_free_i____qaddr_t in 960521-1_1_false-valid-free.i [2018-04-09 21:44:20,154 INFO L230 ultiparseSymbolTable]: Global variable declaration of __U_MULTI_f___________false_valid_free_i____uint16_t in 960521-1_1_false-valid-free.i [2018-04-09 21:44:20,154 INFO L230 ultiparseSymbolTable]: Global variable declaration of __U_MULTI_f___________false_valid_free_i____useconds_t in 960521-1_1_false-valid-free.i [2018-04-09 21:44:20,154 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 [2018-04-09 21:44:20,154 INFO L230 ultiparseSymbolTable]: Global variable declaration of __U_MULTI_f___________false_valid_free_i____blksize_t in 960521-1_1_false-valid-free.i [2018-04-09 21:44:20,154 INFO L230 ultiparseSymbolTable]: Global variable declaration of __U_MULTI_f___________false_valid_free_i____fsfilcnt64_t in 960521-1_1_false-valid-free.i [2018-04-09 21:44:20,155 INFO L230 ultiparseSymbolTable]: Global variable declaration of __U_MULTI_f___________false_valid_free_i____key_t in 960521-1_1_false-valid-free.i [2018-04-09 21:44:20,155 INFO L230 ultiparseSymbolTable]: Global variable declaration of __U_MULTI_f___________false_valid_free_i____uint8_t in 960521-1_1_false-valid-free.i [2018-04-09 21:44:20,155 INFO L230 ultiparseSymbolTable]: Global variable declaration of __U_MULTI_f___________false_valid_free_i____daddr_t in 960521-1_1_false-valid-free.i [2018-04-09 21:44:20,155 INFO L230 ultiparseSymbolTable]: Global variable declaration of __U_MULTI_f___________false_valid_free_i____int64_t in 960521-1_1_false-valid-free.i [2018-04-09 21:44:20,155 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 [2018-04-09 21:44:20,155 INFO L230 ultiparseSymbolTable]: Global variable declaration of __U_MULTI_f___________false_valid_free_i__ushort in 960521-1_1_false-valid-free.i [2018-04-09 21:44:20,155 INFO L230 ultiparseSymbolTable]: Global variable declaration of __U_MULTI_f___________false_valid_free_i____time_t in 960521-1_1_false-valid-free.i [2018-04-09 21:44:20,155 INFO L230 ultiparseSymbolTable]: Global variable declaration of __U_MULTI_f___________false_valid_free_i__loff_t in 960521-1_1_false-valid-free.i [2018-04-09 21:44:20,155 INFO L230 ultiparseSymbolTable]: Global variable declaration of __U_MULTI_f___________false_valid_free_i__int8_t in 960521-1_1_false-valid-free.i [2018-04-09 21:44:20,155 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 [2018-04-09 21:44:20,177 INFO L330 CDTParser]: Deleted temporary CDT project at /storage/ultimate/releaseScripts/default/UAutomizer-linux/data/FLAGb62288a49 [2018-04-09 21:44:20,181 INFO L304 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2018-04-09 21:44:20,183 INFO L131 ToolchainWalker]: Walking toolchain with 4 elements. [2018-04-09 21:44:20,184 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2018-04-09 21:44:20,184 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2018-04-09 21:44:20,189 INFO L276 PluginConnector]: CACSL2BoogieTranslator initialized [2018-04-09 21:44:20,190 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 09.04 09:44:20" (1/1) ... [2018-04-09 21:44:20,192 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@2bfcaf3a and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.04 09:44:20, skipping insertion in model container [2018-04-09 21:44:20,192 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 09.04 09:44:20" (1/1) ... [2018-04-09 21:44:20,206 INFO L167 Dispatcher]: Using SV-COMP mode [2018-04-09 21:44:20,236 INFO L167 Dispatcher]: Using SV-COMP mode [2018-04-09 21:44:20,403 INFO L175 PostProcessor]: Settings: Checked method=main [2018-04-09 21:44:20,450 INFO L175 PostProcessor]: Settings: Checked method=main [2018-04-09 21:44:20,458 INFO L100 SccComputation]: Graph consists of 0 InCaSumBalls and 112 non ball SCCs. Number of states in SCCs 112. [2018-04-09 21:44:20,508 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.04 09:44:20 WrapperNode [2018-04-09 21:44:20,509 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2018-04-09 21:44:20,510 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2018-04-09 21:44:20,510 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2018-04-09 21:44:20,510 INFO L276 PluginConnector]: Boogie Preprocessor initialized [2018-04-09 21:44:20,525 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.04 09:44:20" (1/1) ... [2018-04-09 21:44:20,526 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.04 09:44:20" (1/1) ... [2018-04-09 21:44:20,543 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.04 09:44:20" (1/1) ... [2018-04-09 21:44:20,543 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.04 09:44:20" (1/1) ... [2018-04-09 21:44:20,555 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.04 09:44:20" (1/1) ... [2018-04-09 21:44:20,562 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.04 09:44:20" (1/1) ... [2018-04-09 21:44:20,565 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.04 09:44:20" (1/1) ... [2018-04-09 21:44:20,570 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2018-04-09 21:44:20,571 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2018-04-09 21:44:20,571 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2018-04-09 21:44:20,571 INFO L276 PluginConnector]: RCFGBuilder initialized [2018-04-09 21:44:20,572 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.04 09:44:20" (1/1) ... No working directory specified, using /storage/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 [2018-04-09 21:44:20,698 INFO L136 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2018-04-09 21:44:20,698 INFO L136 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2018-04-09 21:44:20,698 INFO L136 BoogieDeclarations]: Found implementation of procedure __U_MULTI_f___________false_valid_free_i__foo [2018-04-09 21:44:20,698 INFO L136 BoogieDeclarations]: Found implementation of procedure main [2018-04-09 21:44:20,699 INFO L128 BoogieDeclarations]: Found specification of procedure __VERIFIER_error [2018-04-09 21:44:20,699 INFO L128 BoogieDeclarations]: Found specification of procedure __ctype_get_mb_cur_max [2018-04-09 21:44:20,699 INFO L128 BoogieDeclarations]: Found specification of procedure atof [2018-04-09 21:44:20,699 INFO L128 BoogieDeclarations]: Found specification of procedure atoi [2018-04-09 21:44:20,699 INFO L128 BoogieDeclarations]: Found specification of procedure atol [2018-04-09 21:44:20,699 INFO L128 BoogieDeclarations]: Found specification of procedure atoll [2018-04-09 21:44:20,699 INFO L128 BoogieDeclarations]: Found specification of procedure strtod [2018-04-09 21:44:20,699 INFO L128 BoogieDeclarations]: Found specification of procedure strtof [2018-04-09 21:44:20,700 INFO L128 BoogieDeclarations]: Found specification of procedure strtold [2018-04-09 21:44:20,700 INFO L128 BoogieDeclarations]: Found specification of procedure strtol [2018-04-09 21:44:20,700 INFO L128 BoogieDeclarations]: Found specification of procedure strtoul [2018-04-09 21:44:20,700 INFO L128 BoogieDeclarations]: Found specification of procedure strtoq [2018-04-09 21:44:20,700 INFO L128 BoogieDeclarations]: Found specification of procedure strtouq [2018-04-09 21:44:20,700 INFO L128 BoogieDeclarations]: Found specification of procedure strtoll [2018-04-09 21:44:20,700 INFO L128 BoogieDeclarations]: Found specification of procedure strtoull [2018-04-09 21:44:20,701 INFO L128 BoogieDeclarations]: Found specification of procedure l64a [2018-04-09 21:44:20,701 INFO L128 BoogieDeclarations]: Found specification of procedure a64l [2018-04-09 21:44:20,701 INFO L128 BoogieDeclarations]: Found specification of procedure select [2018-04-09 21:44:20,701 INFO L128 BoogieDeclarations]: Found specification of procedure pselect [2018-04-09 21:44:20,701 INFO L128 BoogieDeclarations]: Found specification of procedure gnu_dev_major [2018-04-09 21:44:20,701 INFO L128 BoogieDeclarations]: Found specification of procedure gnu_dev_minor [2018-04-09 21:44:20,702 INFO L128 BoogieDeclarations]: Found specification of procedure gnu_dev_makedev [2018-04-09 21:44:20,702 INFO L128 BoogieDeclarations]: Found specification of procedure random [2018-04-09 21:44:20,702 INFO L128 BoogieDeclarations]: Found specification of procedure srandom [2018-04-09 21:44:20,702 INFO L128 BoogieDeclarations]: Found specification of procedure initstate [2018-04-09 21:44:20,702 INFO L128 BoogieDeclarations]: Found specification of procedure setstate [2018-04-09 21:44:20,702 INFO L128 BoogieDeclarations]: Found specification of procedure random_r [2018-04-09 21:44:20,703 INFO L128 BoogieDeclarations]: Found specification of procedure srandom_r [2018-04-09 21:44:20,703 INFO L128 BoogieDeclarations]: Found specification of procedure initstate_r [2018-04-09 21:44:20,703 INFO L128 BoogieDeclarations]: Found specification of procedure setstate_r [2018-04-09 21:44:20,703 INFO L128 BoogieDeclarations]: Found specification of procedure rand [2018-04-09 21:44:20,703 INFO L128 BoogieDeclarations]: Found specification of procedure srand [2018-04-09 21:44:20,703 INFO L128 BoogieDeclarations]: Found specification of procedure rand_r [2018-04-09 21:44:20,703 INFO L128 BoogieDeclarations]: Found specification of procedure drand48 [2018-04-09 21:44:20,703 INFO L128 BoogieDeclarations]: Found specification of procedure erand48 [2018-04-09 21:44:20,703 INFO L128 BoogieDeclarations]: Found specification of procedure lrand48 [2018-04-09 21:44:20,703 INFO L128 BoogieDeclarations]: Found specification of procedure nrand48 [2018-04-09 21:44:20,703 INFO L128 BoogieDeclarations]: Found specification of procedure mrand48 [2018-04-09 21:44:20,704 INFO L128 BoogieDeclarations]: Found specification of procedure jrand48 [2018-04-09 21:44:20,704 INFO L128 BoogieDeclarations]: Found specification of procedure srand48 [2018-04-09 21:44:20,704 INFO L128 BoogieDeclarations]: Found specification of procedure seed48 [2018-04-09 21:44:20,704 INFO L128 BoogieDeclarations]: Found specification of procedure lcong48 [2018-04-09 21:44:20,704 INFO L128 BoogieDeclarations]: Found specification of procedure drand48_r [2018-04-09 21:44:20,704 INFO L128 BoogieDeclarations]: Found specification of procedure erand48_r [2018-04-09 21:44:20,704 INFO L128 BoogieDeclarations]: Found specification of procedure lrand48_r [2018-04-09 21:44:20,704 INFO L128 BoogieDeclarations]: Found specification of procedure nrand48_r [2018-04-09 21:44:20,705 INFO L128 BoogieDeclarations]: Found specification of procedure mrand48_r [2018-04-09 21:44:20,705 INFO L128 BoogieDeclarations]: Found specification of procedure jrand48_r [2018-04-09 21:44:20,705 INFO L128 BoogieDeclarations]: Found specification of procedure srand48_r [2018-04-09 21:44:20,705 INFO L128 BoogieDeclarations]: Found specification of procedure seed48_r [2018-04-09 21:44:20,705 INFO L128 BoogieDeclarations]: Found specification of procedure lcong48_r [2018-04-09 21:44:20,705 INFO L128 BoogieDeclarations]: Found specification of procedure malloc [2018-04-09 21:44:20,705 INFO L128 BoogieDeclarations]: Found specification of procedure calloc [2018-04-09 21:44:20,705 INFO L128 BoogieDeclarations]: Found specification of procedure realloc [2018-04-09 21:44:20,705 INFO L128 BoogieDeclarations]: Found specification of procedure free [2018-04-09 21:44:20,706 INFO L128 BoogieDeclarations]: Found specification of procedure cfree [2018-04-09 21:44:20,706 INFO L128 BoogieDeclarations]: Found specification of procedure alloca [2018-04-09 21:44:20,706 INFO L128 BoogieDeclarations]: Found specification of procedure valloc [2018-04-09 21:44:20,706 INFO L128 BoogieDeclarations]: Found specification of procedure posix_memalign [2018-04-09 21:44:20,706 INFO L128 BoogieDeclarations]: Found specification of procedure abort [2018-04-09 21:44:20,706 INFO L128 BoogieDeclarations]: Found specification of procedure atexit [2018-04-09 21:44:20,706 INFO L128 BoogieDeclarations]: Found specification of procedure on_exit [2018-04-09 21:44:20,706 INFO L128 BoogieDeclarations]: Found specification of procedure exit [2018-04-09 21:44:20,706 INFO L128 BoogieDeclarations]: Found specification of procedure _Exit [2018-04-09 21:44:20,707 INFO L128 BoogieDeclarations]: Found specification of procedure getenv [2018-04-09 21:44:20,707 INFO L128 BoogieDeclarations]: Found specification of procedure __secure_getenv [2018-04-09 21:44:20,707 INFO L128 BoogieDeclarations]: Found specification of procedure putenv [2018-04-09 21:44:20,707 INFO L128 BoogieDeclarations]: Found specification of procedure setenv [2018-04-09 21:44:20,707 INFO L128 BoogieDeclarations]: Found specification of procedure unsetenv [2018-04-09 21:44:20,707 INFO L128 BoogieDeclarations]: Found specification of procedure clearenv [2018-04-09 21:44:20,707 INFO L128 BoogieDeclarations]: Found specification of procedure mktemp [2018-04-09 21:44:20,707 INFO L128 BoogieDeclarations]: Found specification of procedure mkstemp [2018-04-09 21:44:20,707 INFO L128 BoogieDeclarations]: Found specification of procedure mkstemps [2018-04-09 21:44:20,707 INFO L128 BoogieDeclarations]: Found specification of procedure mkdtemp [2018-04-09 21:44:20,708 INFO L128 BoogieDeclarations]: Found specification of procedure system [2018-04-09 21:44:20,708 INFO L128 BoogieDeclarations]: Found specification of procedure realpath [2018-04-09 21:44:20,708 INFO L128 BoogieDeclarations]: Found specification of procedure bsearch [2018-04-09 21:44:20,708 INFO L128 BoogieDeclarations]: Found specification of procedure qsort [2018-04-09 21:44:20,708 INFO L128 BoogieDeclarations]: Found specification of procedure abs [2018-04-09 21:44:20,708 INFO L128 BoogieDeclarations]: Found specification of procedure labs [2018-04-09 21:44:20,708 INFO L128 BoogieDeclarations]: Found specification of procedure llabs [2018-04-09 21:44:20,708 INFO L128 BoogieDeclarations]: Found specification of procedure div [2018-04-09 21:44:20,708 INFO L128 BoogieDeclarations]: Found specification of procedure ldiv [2018-04-09 21:44:20,708 INFO L128 BoogieDeclarations]: Found specification of procedure lldiv [2018-04-09 21:44:20,709 INFO L128 BoogieDeclarations]: Found specification of procedure ecvt [2018-04-09 21:44:20,709 INFO L128 BoogieDeclarations]: Found specification of procedure fcvt [2018-04-09 21:44:20,709 INFO L128 BoogieDeclarations]: Found specification of procedure gcvt [2018-04-09 21:44:20,709 INFO L128 BoogieDeclarations]: Found specification of procedure qecvt [2018-04-09 21:44:20,709 INFO L128 BoogieDeclarations]: Found specification of procedure qfcvt [2018-04-09 21:44:20,709 INFO L128 BoogieDeclarations]: Found specification of procedure qgcvt [2018-04-09 21:44:20,709 INFO L128 BoogieDeclarations]: Found specification of procedure ecvt_r [2018-04-09 21:44:20,709 INFO L128 BoogieDeclarations]: Found specification of procedure fcvt_r [2018-04-09 21:44:20,710 INFO L128 BoogieDeclarations]: Found specification of procedure qecvt_r [2018-04-09 21:44:20,710 INFO L128 BoogieDeclarations]: Found specification of procedure qfcvt_r [2018-04-09 21:44:20,710 INFO L128 BoogieDeclarations]: Found specification of procedure mblen [2018-04-09 21:44:20,710 INFO L128 BoogieDeclarations]: Found specification of procedure mbtowc [2018-04-09 21:44:20,710 INFO L128 BoogieDeclarations]: Found specification of procedure wctomb [2018-04-09 21:44:20,710 INFO L128 BoogieDeclarations]: Found specification of procedure mbstowcs [2018-04-09 21:44:20,710 INFO L128 BoogieDeclarations]: Found specification of procedure wcstombs [2018-04-09 21:44:20,710 INFO L128 BoogieDeclarations]: Found specification of procedure rpmatch [2018-04-09 21:44:20,711 INFO L128 BoogieDeclarations]: Found specification of procedure getsubopt [2018-04-09 21:44:20,711 INFO L128 BoogieDeclarations]: Found specification of procedure getloadavg [2018-04-09 21:44:20,711 INFO L128 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_int [2018-04-09 21:44:20,711 INFO L128 BoogieDeclarations]: Found specification of procedure __U_MULTI_f___________false_valid_free_i__foo [2018-04-09 21:44:20,711 INFO L128 BoogieDeclarations]: Found specification of procedure write~int [2018-04-09 21:44:20,711 INFO L128 BoogieDeclarations]: Found specification of procedure main [2018-04-09 21:44:20,711 INFO L128 BoogieDeclarations]: Found specification of procedure #Ultimate.alloc [2018-04-09 21:44:20,711 INFO L128 BoogieDeclarations]: Found specification of procedure read~int [2018-04-09 21:44:20,712 INFO L128 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2018-04-09 21:44:20,712 INFO L128 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2018-04-09 21:44:20,712 INFO L128 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2018-04-09 21:44:20,712 INFO L128 BoogieDeclarations]: Found specification of procedure write~unchecked~int [2018-04-09 21:44:21,079 INFO L259 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2018-04-09 21:44:21,080 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 09.04 09:44:21 BoogieIcfgContainer [2018-04-09 21:44:21,081 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2018-04-09 21:44:21,082 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2018-04-09 21:44:21,082 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2018-04-09 21:44:21,086 INFO L276 PluginConnector]: TraceAbstraction initialized [2018-04-09 21:44:21,086 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 09.04 09:44:20" (1/3) ... [2018-04-09 21:44:21,087 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@12aeb0a and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 09.04 09:44:21, skipping insertion in model container [2018-04-09 21:44:21,087 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.04 09:44:20" (2/3) ... [2018-04-09 21:44:21,087 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@12aeb0a and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 09.04 09:44:21, skipping insertion in model container [2018-04-09 21:44:21,087 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 09.04 09:44:21" (3/3) ... [2018-04-09 21:44:21,089 INFO L107 eAbstractionObserver]: Analyzing ICFG 960521-1_1_false-valid-free.i [2018-04-09 21:44:21,097 INFO L131 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2018-04-09 21:44:21,103 INFO L143 ceAbstractionStarter]: Appying trace abstraction to program that has 17 error locations. [2018-04-09 21:44:21,141 INFO L128 ementStrategyFactory]: Using default assertion order modulation [2018-04-09 21:44:21,141 INFO L369 AbstractCegarLoop]: Interprodecural is true [2018-04-09 21:44:21,142 INFO L370 AbstractCegarLoop]: Hoare is true [2018-04-09 21:44:21,142 INFO L371 AbstractCegarLoop]: Compute interpolants for FPandBP [2018-04-09 21:44:21,142 INFO L372 AbstractCegarLoop]: Backedges is TWOTRACK [2018-04-09 21:44:21,142 INFO L373 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2018-04-09 21:44:21,142 INFO L374 AbstractCegarLoop]: Difference is false [2018-04-09 21:44:21,142 INFO L375 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2018-04-09 21:44:21,142 INFO L380 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2018-04-09 21:44:21,143 INFO L87 2NestedWordAutomaton]: Mode: main mode - execution starts in main procedure [2018-04-09 21:44:21,158 INFO L276 IsEmpty]: Start isEmpty. Operand 82 states. [2018-04-09 21:44:21,163 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 19 [2018-04-09 21:44:21,163 INFO L347 BasicCegarLoop]: Found error trace [2018-04-09 21:44:21,163 INFO L355 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-04-09 21:44:21,164 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]=== [2018-04-09 21:44:21,167 INFO L82 PathProgramCache]: Analyzing trace with hash -945622147, now seen corresponding path program 1 times No working directory specified, using /storage/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 2 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 2 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2018-04-09 21:44:21,188 INFO L68 tionRefinementEngine]: Using refinement strategy FixedRefinementStrategy [2018-04-09 21:44:21,232 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-04-09 21:44:21,239 INFO L270 TraceCheckSpWp]: Computing forward predicates... [2018-04-09 21:44:21,255 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-04-09 21:44:21,255 INFO L314 TraceCheckSpWp]: Computing backward predicates... [2018-04-09 21:44:21,270 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-04-09 21:44:21,293 INFO L320 seRefinementStrategy]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2018-04-09 21:44:21,293 INFO L335 seRefinementStrategy]: Number of different interpolants: perfect sequences [2, 2] imperfect sequences [] total 2 [2018-04-09 21:44:21,295 INFO L442 AbstractCegarLoop]: Interpolant automaton has 2 states [2018-04-09 21:44:21,304 INFO L132 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2018-04-09 21:44:21,305 INFO L133 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2018-04-09 21:44:21,306 INFO L87 Difference]: Start difference. First operand 82 states. Second operand 2 states. [2018-04-09 21:44:21,327 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-04-09 21:44:21,328 INFO L93 Difference]: Finished difference Result 146 states and 157 transitions. [2018-04-09 21:44:21,328 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2018-04-09 21:44:21,329 INFO L78 Accepts]: Start accepts. Automaton has 2 states. Word has length 18 [2018-04-09 21:44:21,329 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-04-09 21:44:21,337 INFO L225 Difference]: With dead ends: 146 [2018-04-09 21:44:21,337 INFO L226 Difference]: Without dead ends: 79 [2018-04-09 21:44:21,341 INFO L567 BasicCegarLoop]: 0 DeclaredPredicates, 35 GetRequests, 35 SyntacticMatches, 0 SemanticMatches, 0 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2018-04-09 21:44:21,355 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 79 states. [2018-04-09 21:44:21,375 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 79 to 79. [2018-04-09 21:44:21,377 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 79 states. [2018-04-09 21:44:21,378 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 79 states to 79 states and 82 transitions. [2018-04-09 21:44:21,379 INFO L78 Accepts]: Start accepts. Automaton has 79 states and 82 transitions. Word has length 18 [2018-04-09 21:44:21,379 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-04-09 21:44:21,379 INFO L459 AbstractCegarLoop]: Abstraction has 79 states and 82 transitions. [2018-04-09 21:44:21,380 INFO L460 AbstractCegarLoop]: Interpolant automaton has 2 states. [2018-04-09 21:44:21,380 INFO L276 IsEmpty]: Start isEmpty. Operand 79 states and 82 transitions. [2018-04-09 21:44:21,380 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 22 [2018-04-09 21:44:21,380 INFO L347 BasicCegarLoop]: Found error trace [2018-04-09 21:44:21,380 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, 1] [2018-04-09 21:44:21,380 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]=== [2018-04-09 21:44:21,381 INFO L82 PathProgramCache]: Analyzing trace with hash -175669650, now seen corresponding path program 1 times No working directory specified, using /storage/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 3 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 3 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2018-04-09 21:44:21,388 INFO L68 tionRefinementEngine]: Using refinement strategy FixedRefinementStrategy [2018-04-09 21:44:21,416 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-04-09 21:44:21,419 INFO L270 TraceCheckSpWp]: Computing forward predicates... [2018-04-09 21:44:21,466 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 [2018-04-09 21:44:21,469 INFO L267 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2018-04-09 21:44:21,474 INFO L267 ElimStorePlain]: Start of recursive call 1: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-04-09 21:44:21,475 INFO L202 ElimStorePlain]: Needed 2 recursive calls to eliminate 1 variables, input treesize:6, output treesize:5 [2018-04-09 21:44:21,498 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-04-09 21:44:21,499 INFO L314 TraceCheckSpWp]: Computing backward predicates... [2018-04-09 21:44:21,510 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-04-09 21:44:21,535 INFO L320 seRefinementStrategy]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2018-04-09 21:44:21,536 INFO L335 seRefinementStrategy]: Number of different interpolants: perfect sequences [4, 4] imperfect sequences [] total 4 [2018-04-09 21:44:21,537 INFO L442 AbstractCegarLoop]: Interpolant automaton has 5 states [2018-04-09 21:44:21,537 INFO L132 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2018-04-09 21:44:21,538 INFO L133 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2018-04-09 21:44:21,538 INFO L87 Difference]: Start difference. First operand 79 states and 82 transitions. Second operand 5 states. [2018-04-09 21:44:21,676 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-04-09 21:44:21,676 INFO L93 Difference]: Finished difference Result 79 states and 82 transitions. [2018-04-09 21:44:21,677 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2018-04-09 21:44:21,677 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 21 [2018-04-09 21:44:21,677 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-04-09 21:44:21,679 INFO L225 Difference]: With dead ends: 79 [2018-04-09 21:44:21,679 INFO L226 Difference]: Without dead ends: 76 [2018-04-09 21:44:21,680 INFO L567 BasicCegarLoop]: 0 DeclaredPredicates, 43 GetRequests, 38 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=17, Invalid=25, Unknown=0, NotChecked=0, Total=42 [2018-04-09 21:44:21,681 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 76 states. [2018-04-09 21:44:21,687 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 76 to 76. [2018-04-09 21:44:21,687 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 76 states. [2018-04-09 21:44:21,689 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 76 states to 76 states and 79 transitions. [2018-04-09 21:44:21,689 INFO L78 Accepts]: Start accepts. Automaton has 76 states and 79 transitions. Word has length 21 [2018-04-09 21:44:21,690 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-04-09 21:44:21,690 INFO L459 AbstractCegarLoop]: Abstraction has 76 states and 79 transitions. [2018-04-09 21:44:21,690 INFO L460 AbstractCegarLoop]: Interpolant automaton has 5 states. [2018-04-09 21:44:21,690 INFO L276 IsEmpty]: Start isEmpty. Operand 76 states and 79 transitions. [2018-04-09 21:44:21,691 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 22 [2018-04-09 21:44:21,691 INFO L347 BasicCegarLoop]: Found error trace [2018-04-09 21:44:21,691 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, 1] [2018-04-09 21:44:21,691 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]=== [2018-04-09 21:44:21,691 INFO L82 PathProgramCache]: Analyzing trace with hash -175669649, now seen corresponding path program 1 times No working directory specified, using /storage/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 4 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 4 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2018-04-09 21:44:21,704 INFO L68 tionRefinementEngine]: Using refinement strategy FixedRefinementStrategy [2018-04-09 21:44:21,733 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-04-09 21:44:21,735 INFO L270 TraceCheckSpWp]: Computing forward predicates... [2018-04-09 21:44:21,773 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 [2018-04-09 21:44:21,773 INFO L267 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2018-04-09 21:44:21,779 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. [2018-04-09 21:44:21,780 INFO L202 ElimStorePlain]: Needed 2 recursive calls to eliminate 2 variables, input treesize:15, output treesize:14 [2018-04-09 21:44:21,841 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-04-09 21:44:21,841 INFO L314 TraceCheckSpWp]: Computing backward predicates... [2018-04-09 21:44:21,908 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-04-09 21:44:21,941 INFO L320 seRefinementStrategy]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2018-04-09 21:44:21,941 INFO L335 seRefinementStrategy]: Number of different interpolants: perfect sequences [5, 5] imperfect sequences [] total 8 [2018-04-09 21:44:21,942 INFO L442 AbstractCegarLoop]: Interpolant automaton has 9 states [2018-04-09 21:44:21,942 INFO L132 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2018-04-09 21:44:21,942 INFO L133 InterpolantAutomaton]: CoverageRelationStatistics Valid=18, Invalid=54, Unknown=0, NotChecked=0, Total=72 [2018-04-09 21:44:21,943 INFO L87 Difference]: Start difference. First operand 76 states and 79 transitions. Second operand 9 states. [2018-04-09 21:44:22,211 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-04-09 21:44:22,211 INFO L93 Difference]: Finished difference Result 141 states and 147 transitions. [2018-04-09 21:44:22,212 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2018-04-09 21:44:22,212 INFO L78 Accepts]: Start accepts. Automaton has 9 states. Word has length 21 [2018-04-09 21:44:22,212 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-04-09 21:44:22,214 INFO L225 Difference]: With dead ends: 141 [2018-04-09 21:44:22,214 INFO L226 Difference]: Without dead ends: 140 [2018-04-09 21:44:22,215 INFO L567 BasicCegarLoop]: 0 DeclaredPredicates, 45 GetRequests, 33 SyntacticMatches, 1 SemanticMatches, 11 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 5 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=51, Invalid=105, Unknown=0, NotChecked=0, Total=156 [2018-04-09 21:44:22,215 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 140 states. [2018-04-09 21:44:22,222 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 140 to 87. [2018-04-09 21:44:22,222 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 87 states. [2018-04-09 21:44:22,223 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 87 states to 87 states and 91 transitions. [2018-04-09 21:44:22,223 INFO L78 Accepts]: Start accepts. Automaton has 87 states and 91 transitions. Word has length 21 [2018-04-09 21:44:22,223 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-04-09 21:44:22,224 INFO L459 AbstractCegarLoop]: Abstraction has 87 states and 91 transitions. [2018-04-09 21:44:22,224 INFO L460 AbstractCegarLoop]: Interpolant automaton has 9 states. [2018-04-09 21:44:22,224 INFO L276 IsEmpty]: Start isEmpty. Operand 87 states and 91 transitions. [2018-04-09 21:44:22,224 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 29 [2018-04-09 21:44:22,224 INFO L347 BasicCegarLoop]: Found error trace [2018-04-09 21:44:22,224 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, 1, 1, 1, 1, 1, 1, 1, 1] [2018-04-09 21:44:22,225 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]=== [2018-04-09 21:44:22,225 INFO L82 PathProgramCache]: Analyzing trace with hash -759078926, now seen corresponding path program 1 times No working directory specified, using /storage/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 5 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 5 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2018-04-09 21:44:22,232 INFO L68 tionRefinementEngine]: Using refinement strategy FixedRefinementStrategy [2018-04-09 21:44:22,253 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-04-09 21:44:22,256 INFO L270 TraceCheckSpWp]: Computing forward predicates... [2018-04-09 21:44:22,273 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 [2018-04-09 21:44:22,273 INFO L267 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2018-04-09 21:44:22,275 INFO L267 ElimStorePlain]: Start of recursive call 1: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-04-09 21:44:22,276 INFO L202 ElimStorePlain]: Needed 2 recursive calls to eliminate 1 variables, input treesize:6, output treesize:5 [2018-04-09 21:44:22,292 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 12 treesize of output 11 [2018-04-09 21:44:22,293 INFO L267 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2018-04-09 21:44:22,297 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. [2018-04-09 21:44:22,298 INFO L202 ElimStorePlain]: Needed 2 recursive calls to eliminate 2 variables, input treesize:12, output treesize:11 [2018-04-09 21:44:22,305 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-04-09 21:44:22,305 INFO L314 TraceCheckSpWp]: Computing backward predicates... [2018-04-09 21:44:22,337 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-04-09 21:44:22,372 INFO L320 seRefinementStrategy]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2018-04-09 21:44:22,372 INFO L335 seRefinementStrategy]: Number of different interpolants: perfect sequences [3, 3] imperfect sequences [] total 3 [2018-04-09 21:44:22,373 INFO L442 AbstractCegarLoop]: Interpolant automaton has 4 states [2018-04-09 21:44:22,373 INFO L132 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2018-04-09 21:44:22,373 INFO L133 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2018-04-09 21:44:22,374 INFO L87 Difference]: Start difference. First operand 87 states and 91 transitions. Second operand 4 states. [2018-04-09 21:44:22,455 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-04-09 21:44:22,455 INFO L93 Difference]: Finished difference Result 87 states and 91 transitions. [2018-04-09 21:44:22,456 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2018-04-09 21:44:22,456 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 28 [2018-04-09 21:44:22,456 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-04-09 21:44:22,457 INFO L225 Difference]: With dead ends: 87 [2018-04-09 21:44:22,457 INFO L226 Difference]: Without dead ends: 84 [2018-04-09 21:44:22,458 INFO L567 BasicCegarLoop]: 0 DeclaredPredicates, 56 GetRequests, 51 SyntacticMatches, 2 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2018-04-09 21:44:22,458 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 84 states. [2018-04-09 21:44:22,466 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 84 to 84. [2018-04-09 21:44:22,467 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 84 states. [2018-04-09 21:44:22,468 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 84 states to 84 states and 88 transitions. [2018-04-09 21:44:22,468 INFO L78 Accepts]: Start accepts. Automaton has 84 states and 88 transitions. Word has length 28 [2018-04-09 21:44:22,469 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-04-09 21:44:22,469 INFO L459 AbstractCegarLoop]: Abstraction has 84 states and 88 transitions. [2018-04-09 21:44:22,469 INFO L460 AbstractCegarLoop]: Interpolant automaton has 4 states. [2018-04-09 21:44:22,469 INFO L276 IsEmpty]: Start isEmpty. Operand 84 states and 88 transitions. [2018-04-09 21:44:22,470 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 29 [2018-04-09 21:44:22,470 INFO L347 BasicCegarLoop]: Found error trace [2018-04-09 21:44:22,470 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, 1, 1, 1, 1, 1, 1, 1, 1] [2018-04-09 21:44:22,470 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]=== [2018-04-09 21:44:22,470 INFO L82 PathProgramCache]: Analyzing trace with hash -759078925, now seen corresponding path program 1 times No working directory specified, using /storage/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 6 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 6 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2018-04-09 21:44:22,484 INFO L68 tionRefinementEngine]: Using refinement strategy FixedRefinementStrategy [2018-04-09 21:44:22,510 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-04-09 21:44:22,513 INFO L270 TraceCheckSpWp]: Computing forward predicates... [2018-04-09 21:44:22,536 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 [2018-04-09 21:44:22,537 INFO L267 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2018-04-09 21:44:22,547 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 [2018-04-09 21:44:22,547 INFO L267 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 1 xjuncts. [2018-04-09 21:44:22,559 INFO L267 ElimStorePlain]: Start of recursive call 1: 2 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-04-09 21:44:22,559 INFO L202 ElimStorePlain]: Needed 3 recursive calls to eliminate 2 variables, input treesize:21, output treesize:19 [2018-04-09 21:44:22,593 INFO L700 Elim1Store]: detected not equals via solver [2018-04-09 21:44:22,593 INFO L700 Elim1Store]: detected not equals via solver [2018-04-09 21:44:22,594 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 2 select indices, 2 select index equivalence classes, 2 disjoint index pairs (out of 1 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 11 treesize of output 4 [2018-04-09 21:44:22,595 INFO L267 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2018-04-09 21:44:22,604 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 16 treesize of output 19 [2018-04-09 21:44:22,604 INFO L267 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 1 xjuncts. [2018-04-09 21:44:22,620 INFO L267 ElimStorePlain]: Start of recursive call 1: 1 dim-0 vars, 2 dim-1 vars, End of recursive call: 1 dim-0 vars, and 1 xjuncts. [2018-04-09 21:44:22,620 INFO L202 ElimStorePlain]: Needed 3 recursive calls to eliminate 3 variables, input treesize:32, output treesize:25 [2018-04-09 21:44:22,702 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-04-09 21:44:22,702 INFO L314 TraceCheckSpWp]: Computing backward predicates... [2018-04-09 21:44:22,787 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 10 treesize of output 3 [2018-04-09 21:44:22,788 INFO L267 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2018-04-09 21:44:22,791 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 15 treesize of output 19 [2018-04-09 21:44:22,802 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 14 treesize of output 5 [2018-04-09 21:44:22,803 INFO L267 ElimStorePlain]: Start of recursive call 4: End of recursive call: and 1 xjuncts. [2018-04-09 21:44:22,804 INFO L267 ElimStorePlain]: Start of recursive call 3: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-04-09 21:44:22,806 INFO L267 ElimStorePlain]: Start of recursive call 1: 2 dim-0 vars, 2 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-04-09 21:44:22,807 INFO L202 ElimStorePlain]: Needed 4 recursive calls to eliminate 4 variables, input treesize:25, output treesize:5 [2018-04-09 21:44:22,812 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-04-09 21:44:22,833 INFO L320 seRefinementStrategy]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2018-04-09 21:44:22,833 INFO L335 seRefinementStrategy]: Number of different interpolants: perfect sequences [8, 6] imperfect sequences [] total 12 [2018-04-09 21:44:22,833 INFO L442 AbstractCegarLoop]: Interpolant automaton has 13 states [2018-04-09 21:44:22,834 INFO L132 InterpolantAutomaton]: Constructing interpolant automaton starting with 13 interpolants. [2018-04-09 21:44:22,834 INFO L133 InterpolantAutomaton]: CoverageRelationStatistics Valid=36, Invalid=120, Unknown=0, NotChecked=0, Total=156 [2018-04-09 21:44:22,834 INFO L87 Difference]: Start difference. First operand 84 states and 88 transitions. Second operand 13 states. [2018-04-09 21:44:23,455 WARN L151 SmtUtils]: Spent 108ms on a formula simplification. DAG size of input: 47 DAG size of output 40 [2018-04-09 21:44:23,553 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-04-09 21:44:23,554 INFO L93 Difference]: Finished difference Result 182 states and 193 transitions. [2018-04-09 21:44:23,554 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2018-04-09 21:44:23,554 INFO L78 Accepts]: Start accepts. Automaton has 13 states. Word has length 28 [2018-04-09 21:44:23,554 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-04-09 21:44:23,558 INFO L225 Difference]: With dead ends: 182 [2018-04-09 21:44:23,558 INFO L226 Difference]: Without dead ends: 145 [2018-04-09 21:44:23,559 INFO L567 BasicCegarLoop]: 0 DeclaredPredicates, 63 GetRequests, 43 SyntacticMatches, 1 SemanticMatches, 19 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 59 ImplicationChecksByTransitivity, 0.5s TimeCoverageRelationStatistics Valid=117, Invalid=303, Unknown=0, NotChecked=0, Total=420 [2018-04-09 21:44:23,559 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 145 states. [2018-04-09 21:44:23,570 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 145 to 112. [2018-04-09 21:44:23,570 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 112 states. [2018-04-09 21:44:23,572 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 112 states to 112 states and 122 transitions. [2018-04-09 21:44:23,572 INFO L78 Accepts]: Start accepts. Automaton has 112 states and 122 transitions. Word has length 28 [2018-04-09 21:44:23,572 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-04-09 21:44:23,572 INFO L459 AbstractCegarLoop]: Abstraction has 112 states and 122 transitions. [2018-04-09 21:44:23,572 INFO L460 AbstractCegarLoop]: Interpolant automaton has 13 states. [2018-04-09 21:44:23,573 INFO L276 IsEmpty]: Start isEmpty. Operand 112 states and 122 transitions. [2018-04-09 21:44:23,573 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 29 [2018-04-09 21:44:23,573 INFO L347 BasicCegarLoop]: Found error trace [2018-04-09 21:44:23,574 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, 1, 1, 1, 1] [2018-04-09 21:44:23,574 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]=== [2018-04-09 21:44:23,574 INFO L82 PathProgramCache]: Analyzing trace with hash 1338829057, now seen corresponding path program 1 times No working directory specified, using /storage/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 7 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 7 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2018-04-09 21:44:23,583 INFO L68 tionRefinementEngine]: Using refinement strategy FixedRefinementStrategy [2018-04-09 21:44:23,601 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-04-09 21:44:23,603 INFO L270 TraceCheckSpWp]: Computing forward predicates... [2018-04-09 21:44:23,626 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 [2018-04-09 21:44:23,626 INFO L267 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2018-04-09 21:44:23,630 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. [2018-04-09 21:44:23,630 INFO L202 ElimStorePlain]: Needed 2 recursive calls to eliminate 2 variables, input treesize:15, output treesize:14 [2018-04-09 21:44:23,659 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 3 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-04-09 21:44:23,659 INFO L314 TraceCheckSpWp]: Computing backward predicates... [2018-04-09 21:44:23,715 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 3 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-04-09 21:44:23,737 INFO L320 seRefinementStrategy]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2018-04-09 21:44:23,737 INFO L335 seRefinementStrategy]: Number of different interpolants: perfect sequences [7, 7] imperfect sequences [] total 12 [2018-04-09 21:44:23,738 INFO L442 AbstractCegarLoop]: Interpolant automaton has 13 states [2018-04-09 21:44:23,738 INFO L132 InterpolantAutomaton]: Constructing interpolant automaton starting with 13 interpolants. [2018-04-09 21:44:23,738 INFO L133 InterpolantAutomaton]: CoverageRelationStatistics Valid=30, Invalid=126, Unknown=0, NotChecked=0, Total=156 [2018-04-09 21:44:23,738 INFO L87 Difference]: Start difference. First operand 112 states and 122 transitions. Second operand 13 states. [2018-04-09 21:44:24,104 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-04-09 21:44:24,104 INFO L93 Difference]: Finished difference Result 135 states and 141 transitions. [2018-04-09 21:44:24,105 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 17 states. [2018-04-09 21:44:24,105 INFO L78 Accepts]: Start accepts. Automaton has 13 states. Word has length 28 [2018-04-09 21:44:24,105 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-04-09 21:44:24,106 INFO L225 Difference]: With dead ends: 135 [2018-04-09 21:44:24,106 INFO L226 Difference]: Without dead ends: 134 [2018-04-09 21:44:24,107 INFO L567 BasicCegarLoop]: 0 DeclaredPredicates, 67 GetRequests, 43 SyntacticMatches, 1 SemanticMatches, 23 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 67 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=150, Invalid=450, Unknown=0, NotChecked=0, Total=600 [2018-04-09 21:44:24,107 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 134 states. [2018-04-09 21:44:24,116 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 134 to 111. [2018-04-09 21:44:24,117 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 111 states. [2018-04-09 21:44:24,118 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 111 states to 111 states and 121 transitions. [2018-04-09 21:44:24,118 INFO L78 Accepts]: Start accepts. Automaton has 111 states and 121 transitions. Word has length 28 [2018-04-09 21:44:24,119 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-04-09 21:44:24,119 INFO L459 AbstractCegarLoop]: Abstraction has 111 states and 121 transitions. [2018-04-09 21:44:24,119 INFO L460 AbstractCegarLoop]: Interpolant automaton has 13 states. [2018-04-09 21:44:24,119 INFO L276 IsEmpty]: Start isEmpty. Operand 111 states and 121 transitions. [2018-04-09 21:44:24,120 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 35 [2018-04-09 21:44:24,120 INFO L347 BasicCegarLoop]: Found error trace [2018-04-09 21:44:24,120 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-04-09 21:44:24,121 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]=== [2018-04-09 21:44:24,121 INFO L82 PathProgramCache]: Analyzing trace with hash 1430118121, now seen corresponding path program 1 times No working directory specified, using /storage/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 8 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 8 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2018-04-09 21:44:24,126 INFO L68 tionRefinementEngine]: Using refinement strategy FixedRefinementStrategy [2018-04-09 21:44:24,144 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-04-09 21:44:24,146 INFO L270 TraceCheckSpWp]: Computing forward predicates... [2018-04-09 21:44:24,185 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 3 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-04-09 21:44:24,185 INFO L314 TraceCheckSpWp]: Computing backward predicates... [2018-04-09 21:44:24,204 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 3 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-04-09 21:44:24,225 INFO L320 seRefinementStrategy]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2018-04-09 21:44:24,226 INFO L335 seRefinementStrategy]: Number of different interpolants: perfect sequences [6, 6] imperfect sequences [] total 9 [2018-04-09 21:44:24,226 INFO L442 AbstractCegarLoop]: Interpolant automaton has 9 states [2018-04-09 21:44:24,226 INFO L132 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2018-04-09 21:44:24,226 INFO L133 InterpolantAutomaton]: CoverageRelationStatistics Valid=24, Invalid=48, Unknown=0, NotChecked=0, Total=72 [2018-04-09 21:44:24,227 INFO L87 Difference]: Start difference. First operand 111 states and 121 transitions. Second operand 9 states. [2018-04-09 21:44:24,404 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-04-09 21:44:24,404 INFO L93 Difference]: Finished difference Result 168 states and 176 transitions. [2018-04-09 21:44:24,405 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2018-04-09 21:44:24,405 INFO L78 Accepts]: Start accepts. Automaton has 9 states. Word has length 34 [2018-04-09 21:44:24,405 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-04-09 21:44:24,406 INFO L225 Difference]: With dead ends: 168 [2018-04-09 21:44:24,407 INFO L226 Difference]: Without dead ends: 127 [2018-04-09 21:44:24,407 INFO L567 BasicCegarLoop]: 0 DeclaredPredicates, 69 GetRequests, 59 SyntacticMatches, 1 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 15 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=41, Invalid=69, Unknown=0, NotChecked=0, Total=110 [2018-04-09 21:44:24,408 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 127 states. [2018-04-09 21:44:24,417 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 127 to 106. [2018-04-09 21:44:24,417 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 106 states. [2018-04-09 21:44:24,418 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 106 states to 106 states and 112 transitions. [2018-04-09 21:44:24,419 INFO L78 Accepts]: Start accepts. Automaton has 106 states and 112 transitions. Word has length 34 [2018-04-09 21:44:24,419 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-04-09 21:44:24,419 INFO L459 AbstractCegarLoop]: Abstraction has 106 states and 112 transitions. [2018-04-09 21:44:24,419 INFO L460 AbstractCegarLoop]: Interpolant automaton has 9 states. [2018-04-09 21:44:24,419 INFO L276 IsEmpty]: Start isEmpty. Operand 106 states and 112 transitions. [2018-04-09 21:44:24,420 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 36 [2018-04-09 21:44:24,421 INFO L347 BasicCegarLoop]: Found error trace [2018-04-09 21:44:24,421 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-04-09 21:44:24,421 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]=== [2018-04-09 21:44:24,421 INFO L82 PathProgramCache]: Analyzing trace with hash -874754783, now seen corresponding path program 1 times No working directory specified, using /storage/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 9 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 9 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2018-04-09 21:44:24,433 INFO L68 tionRefinementEngine]: Using refinement strategy FixedRefinementStrategy [2018-04-09 21:44:24,466 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-04-09 21:44:24,469 INFO L270 TraceCheckSpWp]: Computing forward predicates... [2018-04-09 21:44:24,498 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 [2018-04-09 21:44:24,498 INFO L267 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2018-04-09 21:44:24,504 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 [2018-04-09 21:44:24,504 INFO L267 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 1 xjuncts. [2018-04-09 21:44:24,509 INFO L267 ElimStorePlain]: Start of recursive call 1: 2 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-04-09 21:44:24,509 INFO L202 ElimStorePlain]: Needed 3 recursive calls to eliminate 2 variables, input treesize:21, output treesize:19 [2018-04-09 21:44:24,532 INFO L700 Elim1Store]: detected not equals via solver [2018-04-09 21:44:24,533 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 16 treesize of output 19 [2018-04-09 21:44:24,534 INFO L267 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2018-04-09 21:44:24,545 INFO L700 Elim1Store]: detected not equals via solver [2018-04-09 21:44:24,545 INFO L700 Elim1Store]: detected not equals via solver [2018-04-09 21:44:24,546 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 2 select indices, 2 select index equivalence classes, 2 disjoint index pairs (out of 1 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 11 treesize of output 4 [2018-04-09 21:44:24,546 INFO L267 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 1 xjuncts. [2018-04-09 21:44:24,554 INFO L267 ElimStorePlain]: Start of recursive call 1: 1 dim-0 vars, 2 dim-1 vars, End of recursive call: 1 dim-0 vars, and 1 xjuncts. [2018-04-09 21:44:24,554 INFO L202 ElimStorePlain]: Needed 3 recursive calls to eliminate 3 variables, input treesize:32, output treesize:25 [2018-04-09 21:44:24,650 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 3 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-04-09 21:44:24,650 INFO L314 TraceCheckSpWp]: Computing backward predicates... [2018-04-09 21:44:24,748 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 10 treesize of output 3 [2018-04-09 21:44:24,749 INFO L267 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2018-04-09 21:44:24,753 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 15 treesize of output 19 [2018-04-09 21:44:24,763 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 8 treesize of output 1 [2018-04-09 21:44:24,764 INFO L267 ElimStorePlain]: Start of recursive call 4: End of recursive call: and 1 xjuncts. [2018-04-09 21:44:24,765 INFO L267 ElimStorePlain]: Start of recursive call 3: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-04-09 21:44:24,767 INFO L267 ElimStorePlain]: Start of recursive call 1: 2 dim-0 vars, 2 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-04-09 21:44:24,768 INFO L202 ElimStorePlain]: Needed 4 recursive calls to eliminate 4 variables, input treesize:25, output treesize:5 [2018-04-09 21:44:24,799 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 3 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-04-09 21:44:24,821 INFO L320 seRefinementStrategy]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2018-04-09 21:44:24,821 INFO L335 seRefinementStrategy]: Number of different interpolants: perfect sequences [10, 8] imperfect sequences [] total 16 [2018-04-09 21:44:24,821 INFO L442 AbstractCegarLoop]: Interpolant automaton has 17 states [2018-04-09 21:44:24,821 INFO L132 InterpolantAutomaton]: Constructing interpolant automaton starting with 17 interpolants. [2018-04-09 21:44:24,822 INFO L133 InterpolantAutomaton]: CoverageRelationStatistics Valid=52, Invalid=220, Unknown=0, NotChecked=0, Total=272 [2018-04-09 21:44:24,822 INFO L87 Difference]: Start difference. First operand 106 states and 112 transitions. Second operand 17 states. [2018-04-09 21:44:25,735 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-04-09 21:44:25,735 INFO L93 Difference]: Finished difference Result 173 states and 182 transitions. [2018-04-09 21:44:25,735 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 22 states. [2018-04-09 21:44:25,735 INFO L78 Accepts]: Start accepts. Automaton has 17 states. Word has length 35 [2018-04-09 21:44:25,735 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-04-09 21:44:25,736 INFO L225 Difference]: With dead ends: 173 [2018-04-09 21:44:25,736 INFO L226 Difference]: Without dead ends: 136 [2018-04-09 21:44:25,737 INFO L567 BasicCegarLoop]: 0 DeclaredPredicates, 85 GetRequests, 53 SyntacticMatches, 1 SemanticMatches, 31 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 183 ImplicationChecksByTransitivity, 0.7s TimeCoverageRelationStatistics Valid=240, Invalid=816, Unknown=0, NotChecked=0, Total=1056 [2018-04-09 21:44:25,737 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 136 states. [2018-04-09 21:44:25,743 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 136 to 103. [2018-04-09 21:44:25,743 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 103 states. [2018-04-09 21:44:25,744 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 103 states to 103 states and 107 transitions. [2018-04-09 21:44:25,744 INFO L78 Accepts]: Start accepts. Automaton has 103 states and 107 transitions. Word has length 35 [2018-04-09 21:44:25,744 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-04-09 21:44:25,744 INFO L459 AbstractCegarLoop]: Abstraction has 103 states and 107 transitions. [2018-04-09 21:44:25,745 INFO L460 AbstractCegarLoop]: Interpolant automaton has 17 states. [2018-04-09 21:44:25,745 INFO L276 IsEmpty]: Start isEmpty. Operand 103 states and 107 transitions. [2018-04-09 21:44:25,746 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 40 [2018-04-09 21:44:25,746 INFO L347 BasicCegarLoop]: Found error trace [2018-04-09 21:44:25,746 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, 1, 1, 1, 1, 1] [2018-04-09 21:44:25,746 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]=== [2018-04-09 21:44:25,747 INFO L82 PathProgramCache]: Analyzing trace with hash 1872627599, now seen corresponding path program 1 times No working directory specified, using /storage/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 10 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 10 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2018-04-09 21:44:25,754 INFO L68 tionRefinementEngine]: Using refinement strategy FixedRefinementStrategy [2018-04-09 21:44:25,771 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-04-09 21:44:25,774 INFO L270 TraceCheckSpWp]: Computing forward predicates... [2018-04-09 21:44:25,779 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 [2018-04-09 21:44:25,779 INFO L267 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2018-04-09 21:44:25,784 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. [2018-04-09 21:44:25,784 INFO L202 ElimStorePlain]: Needed 2 recursive calls to eliminate 2 variables, input treesize:15, output treesize:14 [2018-04-09 21:44:25,847 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2018-04-09 21:44:25,847 INFO L314 TraceCheckSpWp]: Computing backward predicates... [2018-04-09 21:44:25,949 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2018-04-09 21:44:25,970 INFO L320 seRefinementStrategy]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2018-04-09 21:44:25,971 INFO L335 seRefinementStrategy]: Number of different interpolants: perfect sequences [7, 7] imperfect sequences [] total 12 [2018-04-09 21:44:25,971 INFO L442 AbstractCegarLoop]: Interpolant automaton has 13 states [2018-04-09 21:44:25,971 INFO L132 InterpolantAutomaton]: Constructing interpolant automaton starting with 13 interpolants. [2018-04-09 21:44:25,971 INFO L133 InterpolantAutomaton]: CoverageRelationStatistics Valid=30, Invalid=126, Unknown=0, NotChecked=0, Total=156 [2018-04-09 21:44:25,971 INFO L87 Difference]: Start difference. First operand 103 states and 107 transitions. Second operand 13 states. [2018-04-09 21:44:26,219 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-04-09 21:44:26,219 INFO L93 Difference]: Finished difference Result 130 states and 134 transitions. [2018-04-09 21:44:26,219 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2018-04-09 21:44:26,219 INFO L78 Accepts]: Start accepts. Automaton has 13 states. Word has length 39 [2018-04-09 21:44:26,220 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-04-09 21:44:26,220 INFO L225 Difference]: With dead ends: 130 [2018-04-09 21:44:26,220 INFO L226 Difference]: Without dead ends: 129 [2018-04-09 21:44:26,221 INFO L567 BasicCegarLoop]: 0 DeclaredPredicates, 84 GetRequests, 65 SyntacticMatches, 1 SemanticMatches, 18 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 23 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=95, Invalid=285, Unknown=0, NotChecked=0, Total=380 [2018-04-09 21:44:26,221 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 129 states. [2018-04-09 21:44:26,229 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 129 to 104. [2018-04-09 21:44:26,229 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 104 states. [2018-04-09 21:44:26,230 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 104 states to 104 states and 108 transitions. [2018-04-09 21:44:26,231 INFO L78 Accepts]: Start accepts. Automaton has 104 states and 108 transitions. Word has length 39 [2018-04-09 21:44:26,231 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-04-09 21:44:26,231 INFO L459 AbstractCegarLoop]: Abstraction has 104 states and 108 transitions. [2018-04-09 21:44:26,231 INFO L460 AbstractCegarLoop]: Interpolant automaton has 13 states. [2018-04-09 21:44:26,231 INFO L276 IsEmpty]: Start isEmpty. Operand 104 states and 108 transitions. [2018-04-09 21:44:26,233 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 42 [2018-04-09 21:44:26,233 INFO L347 BasicCegarLoop]: Found error trace [2018-04-09 21:44:26,233 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-04-09 21:44:26,233 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]=== [2018-04-09 21:44:26,233 INFO L82 PathProgramCache]: Analyzing trace with hash 957460887, now seen corresponding path program 1 times No working directory specified, using /storage/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 11 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 11 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2018-04-09 21:44:26,243 INFO L68 tionRefinementEngine]: Using refinement strategy FixedRefinementStrategy [2018-04-09 21:44:26,264 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-04-09 21:44:26,266 INFO L270 TraceCheckSpWp]: Computing forward predicates... [2018-04-09 21:44:26,338 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 [2018-04-09 21:44:26,339 INFO L267 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2018-04-09 21:44:26,343 INFO L267 ElimStorePlain]: Start of recursive call 1: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-04-09 21:44:26,343 INFO L202 ElimStorePlain]: Needed 2 recursive calls to eliminate 1 variables, input treesize:15, output treesize:14 [2018-04-09 21:44:26,363 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 [2018-04-09 21:44:26,363 INFO L267 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2018-04-09 21:44:26,369 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. [2018-04-09 21:44:26,370 INFO L202 ElimStorePlain]: Needed 2 recursive calls to eliminate 3 variables, input treesize:22, output treesize:21 [2018-04-09 21:44:26,433 INFO L134 CoverageAnalysis]: Checked inductivity of 6 backedges. 3 proven. 3 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-04-09 21:44:26,433 INFO L314 TraceCheckSpWp]: Computing backward predicates... [2018-04-09 21:44:27,012 WARN L1011 $PredicateComparison]: unable to prove that (and (<= 0 (+ |c_main_#t~malloc4.offset| 4)) (forall ((|v_main_#t~malloc5.base_12| Int)) (<= (+ |c_main_#t~malloc4.offset| 8) (select (store |c_#length| |v_main_#t~malloc5.base_12| (* 4 c_~__U_MULTI_f___________false_valid_free_i__n~0)) |c_main_#t~malloc4.base|)))) is different from false [2018-04-09 21:44:27,016 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 1 new quantified variables, introduced 0 case distinctions, treesize of input 15 treesize of output 19 [2018-04-09 21:44:27,026 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 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 8 treesize of output 1 [2018-04-09 21:44:27,026 INFO L267 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 1 xjuncts. [2018-04-09 21:44:27,027 INFO L267 ElimStorePlain]: Start of recursive call 2: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-04-09 21:44:27,029 INFO L267 ElimStorePlain]: Start of recursive call 1: 2 dim-0 vars, 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-04-09 21:44:27,029 INFO L202 ElimStorePlain]: Needed 3 recursive calls to eliminate 3 variables, input treesize:15, output treesize:5 [2018-04-09 21:44:27,040 INFO L134 CoverageAnalysis]: Checked inductivity of 6 backedges. 3 proven. 3 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-04-09 21:44:27,061 INFO L320 seRefinementStrategy]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2018-04-09 21:44:27,061 INFO L335 seRefinementStrategy]: Number of different interpolants: perfect sequences [] imperfect sequences [10, 10] total 16 [2018-04-09 21:44:27,061 INFO L442 AbstractCegarLoop]: Interpolant automaton has 17 states [2018-04-09 21:44:27,061 INFO L132 InterpolantAutomaton]: Constructing interpolant automaton starting with 17 interpolants. [2018-04-09 21:44:27,061 INFO L133 InterpolantAutomaton]: CoverageRelationStatistics Valid=51, Invalid=191, Unknown=2, NotChecked=28, Total=272 [2018-04-09 21:44:27,062 INFO L87 Difference]: Start difference. First operand 104 states and 108 transitions. Second operand 17 states. [2018-04-09 21:44:27,406 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-04-09 21:44:27,407 INFO L93 Difference]: Finished difference Result 178 states and 184 transitions. [2018-04-09 21:44:27,407 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2018-04-09 21:44:27,407 INFO L78 Accepts]: Start accepts. Automaton has 17 states. Word has length 41 [2018-04-09 21:44:27,407 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-04-09 21:44:27,408 INFO L225 Difference]: With dead ends: 178 [2018-04-09 21:44:27,408 INFO L226 Difference]: Without dead ends: 141 [2018-04-09 21:44:27,409 INFO L567 BasicCegarLoop]: 0 DeclaredPredicates, 91 GetRequests, 63 SyntacticMatches, 4 SemanticMatches, 24 ConstructedPredicates, 1 IntricatePredicates, 0 DeprecatedPredicates, 112 ImplicationChecksByTransitivity, 0.8s TimeCoverageRelationStatistics Valid=140, Invalid=462, Unknown=2, NotChecked=46, Total=650 [2018-04-09 21:44:27,410 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 141 states. [2018-04-09 21:44:27,417 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 141 to 110. [2018-04-09 21:44:27,417 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 110 states. [2018-04-09 21:44:27,417 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 110 states to 110 states and 114 transitions. [2018-04-09 21:44:27,418 INFO L78 Accepts]: Start accepts. Automaton has 110 states and 114 transitions. Word has length 41 [2018-04-09 21:44:27,418 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-04-09 21:44:27,418 INFO L459 AbstractCegarLoop]: Abstraction has 110 states and 114 transitions. [2018-04-09 21:44:27,418 INFO L460 AbstractCegarLoop]: Interpolant automaton has 17 states. [2018-04-09 21:44:27,418 INFO L276 IsEmpty]: Start isEmpty. Operand 110 states and 114 transitions. [2018-04-09 21:44:27,419 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 46 [2018-04-09 21:44:27,419 INFO L347 BasicCegarLoop]: Found error trace [2018-04-09 21:44:27,420 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-04-09 21:44:27,420 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]=== [2018-04-09 21:44:27,420 INFO L82 PathProgramCache]: Analyzing trace with hash -626688431, now seen corresponding path program 1 times No working directory specified, using /storage/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 12 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 12 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2018-04-09 21:44:27,437 INFO L68 tionRefinementEngine]: Using refinement strategy FixedRefinementStrategy [2018-04-09 21:44:27,456 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2018-04-09 21:44:27,468 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2018-04-09 21:44:27,518 INFO L421 BasicCegarLoop]: Counterexample might be feasible [2018-04-09 21:44:27,570 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 09.04 09:44:27 BoogieIcfgContainer [2018-04-09 21:44:27,571 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2018-04-09 21:44:27,571 INFO L168 Benchmark]: Toolchain (without parser) took 7389.77 ms. Allocated memory was 299.9 MB in the beginning and 548.4 MB in the end (delta: 248.5 MB). Free memory was 235.3 MB in the beginning and 458.8 MB in the end (delta: -223.5 MB). Peak memory consumption was 25.0 MB. Max. memory is 5.3 GB. [2018-04-09 21:44:27,572 INFO L168 Benchmark]: CDTParser took 0.23 ms. Allocated memory is still 299.9 MB. Free memory is still 262.2 MB. There was no memory consumed. Max. memory is 5.3 GB. [2018-04-09 21:44:27,572 INFO L168 Benchmark]: CACSL2BoogieTranslator took 325.13 ms. Allocated memory is still 299.9 MB. Free memory was 235.3 MB in the beginning and 211.2 MB in the end (delta: 24.1 MB). Peak memory consumption was 24.1 MB. Max. memory is 5.3 GB. [2018-04-09 21:44:27,573 INFO L168 Benchmark]: Boogie Preprocessor took 60.85 ms. Allocated memory is still 299.9 MB. Free memory was 211.2 MB in the beginning and 209.1 MB in the end (delta: 2.0 MB). Peak memory consumption was 2.0 MB. Max. memory is 5.3 GB. [2018-04-09 21:44:27,573 INFO L168 Benchmark]: RCFGBuilder took 509.88 ms. Allocated memory was 299.9 MB in the beginning and 456.1 MB in the end (delta: 156.2 MB). Free memory was 209.1 MB in the beginning and 392.8 MB in the end (delta: -183.7 MB). Peak memory consumption was 22.3 MB. Max. memory is 5.3 GB. [2018-04-09 21:44:27,573 INFO L168 Benchmark]: TraceAbstraction took 6488.92 ms. Allocated memory was 456.1 MB in the beginning and 548.4 MB in the end (delta: 92.3 MB). Free memory was 392.8 MB in the beginning and 458.8 MB in the end (delta: -66.0 MB). Peak memory consumption was 26.3 MB. Max. memory is 5.3 GB. [2018-04-09 21:44:27,576 INFO L344 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.23 ms. Allocated memory is still 299.9 MB. Free memory is still 262.2 MB. There was no memory consumed. Max. memory is 5.3 GB. * CACSL2BoogieTranslator took 325.13 ms. Allocated memory is still 299.9 MB. Free memory was 235.3 MB in the beginning and 211.2 MB in the end (delta: 24.1 MB). Peak memory consumption was 24.1 MB. Max. memory is 5.3 GB. * Boogie Preprocessor took 60.85 ms. Allocated memory is still 299.9 MB. Free memory was 211.2 MB in the beginning and 209.1 MB in the end (delta: 2.0 MB). Peak memory consumption was 2.0 MB. Max. memory is 5.3 GB. * RCFGBuilder took 509.88 ms. Allocated memory was 299.9 MB in the beginning and 456.1 MB in the end (delta: 156.2 MB). Free memory was 209.1 MB in the beginning and 392.8 MB in the end (delta: -183.7 MB). Peak memory consumption was 22.3 MB. Max. memory is 5.3 GB. * TraceAbstraction took 6488.92 ms. Allocated memory was 456.1 MB in the beginning and 548.4 MB in the end (delta: 92.3 MB). Free memory was 392.8 MB in the beginning and 458.8 MB in the end (delta: -66.0 MB). Peak memory consumption was 26.3 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; VAL [\old(a)=2, \old(a)=6, \old(a)=8, \old(a)=7, \old(n)=10, a={2:6}, a={0:0}, n=10] [L619] int *a, *b; VAL [\old(a)=6, \old(a)=7, \old(a)=8, \old(a)=2, \old(n)=10, a={0:0}, a={0:0}, n=10] [L620] int n; VAL [\old(a)=2, \old(a)=7, \old(a)=6, \old(a)=8, \old(n)=10, 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) VAL [\old(a)=0, \old(a)=0, \old(a)=0, \old(a)=0, \old(n)=0, __VERIFIER_nondet_int()=0, a={0:0}, a={0:0}, n=1] [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))={12:0}, 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={12:0}, a={0:0}, malloc(n * sizeof(*a))={12:0}, 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={12:0}, a={0:0}, malloc(n * sizeof(*a))={12:0}, malloc(n * sizeof(*b))={11:0}, n=1] [L637] b = malloc(n * sizeof(*b)) VAL [\old(a)=0, \old(a)=0, \old(a)=0, \old(a)=0, \old(n)=0, a={12:0}, a={11:0}, malloc(n * sizeof(*a))={12:0}, malloc(n * sizeof(*b))={11:0}, n=1] [L638] EXPR b++ VAL [\old(a)=0, \old(a)=0, \old(a)=0, \old(a)=0, \old(n)=0, a={11:0}, a={12:0}, b++={11:0}, malloc(n * sizeof(*a))={12:0}, malloc(n * sizeof(*b))={11:0}, n=1] [L638] EXPR b++ VAL [\old(a)=0, \old(a)=0, \old(a)=0, \old(a)=0, \old(n)=0, a={12:0}, a={11:4}, b++={11:0}, malloc(n * sizeof(*a))={12:0}, malloc(n * sizeof(*b))={11:0}, n=1] [L638] FCALL *b++ = 0 VAL [\old(a)=0, \old(a)=0, \old(a)=0, \old(a)=0, \old(n)=0, a={11:4}, a={12:0}, b++={11:0}, malloc(n * sizeof(*a))={12:0}, malloc(n * sizeof(*b))={11:0}, n=1] [L639] CALL foo() VAL [\old(a)=0, \old(a)=0, \old(a)=0, \old(a)=0, \old(n)=0, a={11:4}, a={12:0}, n=1] [L624] int i; VAL [\old(a)=0, \old(a)=0, \old(a)=0, \old(a)=0, \old(n)=0, a={12:0}, a={11:4}, n=1] [L625] i = 0 VAL [\old(a)=0, \old(a)=0, \old(a)=0, \old(a)=0, \old(n)=0, a={11:4}, a={12:0}, i=0, n=1] [L625] COND TRUE i < n VAL [\old(a)=0, \old(a)=0, \old(a)=0, \old(a)=0, \old(n)=0, a={11:4}, a={12:0}, 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={12:0}, a={11:4}, i=0, n=1] [L625] i++ VAL [\old(a)=0, \old(a)=0, \old(a)=0, \old(a)=0, \old(n)=0, a={11:4}, a={12:0}, i=0, i++=0, n=1] [L625] i++ VAL [\old(a)=0, \old(a)=0, \old(a)=0, \old(a)=0, \old(n)=0, a={11:4}, a={12:0}, i=1, i++=0, n=1] [L625] COND FALSE !(i < n) VAL [\old(a)=0, \old(a)=0, \old(a)=0, \old(a)=0, \old(n)=0, a={12:0}, a={11:4}, i=1, n=1] [L627] i = 0 VAL [\old(a)=0, \old(a)=0, \old(a)=0, \old(a)=0, \old(n)=0, a={11:4}, a={12:0}, i=0, n=1] [L627] COND FALSE, RET !(i < n - 1) VAL [\old(a)=0, \old(a)=0, \old(a)=0, \old(a)=0, \old(n)=0, a={11:4}, a={12:0}, i=0, n=1] [L639] foo() VAL [\old(a)=0, \old(a)=0, \old(a)=0, \old(a)=0, \old(n)=0, a={11:4}, a={12:0}, malloc(n * sizeof(*a))={12:0}, malloc(n * sizeof(*b))={11:0}, n=1] [L640] FCALL b[-1] VAL [\old(a)=0, \old(a)=0, \old(a)=0, \old(a)=0, \old(n)=0, a={11:4}, a={12:0}, b[-1]=0, malloc(n * sizeof(*a))={12:0}, malloc(n * sizeof(*b))={11:0}, n=1] [L640] COND FALSE !(b[-1]) VAL [\old(a)=0, \old(a)=0, \old(a)=0, \old(a)=0, \old(n)=0, a={11:4}, a={12:0}, b[-1]=0, malloc(n * sizeof(*a))={12:0}, malloc(n * sizeof(*b))={11:0}, n=1] [L643] free(a) VAL [\old(a)=0, \old(a)=0, \old(a)=0, \old(a)=0, \old(n)=0, a={11:4}, a={12:0}, malloc(n * sizeof(*a))={12:0}, malloc(n * sizeof(*b))={11:0}, n=1] [L643] free(a) VAL [\old(a)=0, \old(a)=0, \old(a)=0, \old(a)=0, \old(n)=0, a={11:4}, a={12:0}, malloc(n * sizeof(*a))={12:0}, malloc(n * sizeof(*b))={11:0}, n=1] [L643] FCALL free(a) VAL [\old(a)=0, \old(a)=0, \old(a)=0, \old(a)=0, \old(n)=0, a={12:0}, a={11:4}, malloc(n * sizeof(*a))={12:0}, malloc(n * sizeof(*b))={11:0}, n=1] [L643] free(b) VAL [\old(a)=0, \old(a)=0, \old(a)=0, \old(a)=0, \old(n)=0, a={11:4}, a={12:0}, malloc(n * sizeof(*a))={12:0}, malloc(n * sizeof(*b))={11:0}, n=1] - StatisticsResult: Ultimate Automizer benchmark data CFG has 4 procedures, 82 locations, 17 error locations. UNSAFE Result, 6.4s OverallTime, 11 OverallIterations, 2 TraceHistogramMax, 3.3s AutomataDifference, 0.0s DeadEndRemovalTime, 0.0s HoareAnnotationTime, HoareTripleCheckerStatistics: 715 SDtfs, 1690 SDslu, 3201 SDs, 0 SdLazy, 1942 SolverSat, 177 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 1.3s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 638 GetRequests, 483 SyntacticMatches, 12 SemanticMatches, 143 ConstructedPredicates, 1 IntricatePredicates, 0 DeprecatedPredicates, 464 ImplicationChecksByTransitivity, 2.9s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=112occurred in iteration=5, 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: 0.1s AutomataMinimizationTime, 10 MinimizatonAttempts, 219 StatesRemovedByMinimization, 7 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TraceCheckStatistics: 0.0s SsaConstructionTime, 0.1s SatisfiabilityAnalysisTime, 2.1s InterpolantComputationTime, 338 NumberOfCodeBlocks, 338 NumberOfCodeBlocksAsserted, 11 NumberOfCheckSat, 566 ConstructedInterpolants, 75 QuantifiedInterpolants, 115594 SizeOfPredicates, 57 NumberOfNonLiveVariables, 1305 ConjunctsInSsa, 118 ConjunctsInUnsatCore, 20 InterpolantComputations, 18 PerfectInterpolantSequences, 28/34 InterpolantCoveringCapability, InvariantSynthesisStatistics: No data available, InterpolantConsolidationStatistics: No data available, ReuseStatistics: No data available RESULT: Ultimate proved your program to be incorrect! Written .csv to /storage/ultimate/releaseScripts/default/UAutomizer-linux/../../../releaseScripts/default/UAutomizer-linux/csv/960521-1_1_false-valid-free.i_svcomp-DerefFreeMemtrack-32bit-Automizer_Fixed_noBitfields+AI_EQ_SS.epf_AutomizerC.xml/Csv-Benchmark-0-2018-04-09_21-44-27-584.csv Written .csv to /storage/ultimate/releaseScripts/default/UAutomizer-linux/../../../releaseScripts/default/UAutomizer-linux/csv/960521-1_1_false-valid-free.i_svcomp-DerefFreeMemtrack-32bit-Automizer_Fixed_noBitfields+AI_EQ_SS.epf_AutomizerC.xml/Csv-TraceAbstractionBenchmarks-0-2018-04-09_21-44-27-584.csv Received shutdown request...