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_true-valid-memsafety.i -------------------------------------------------------------------------------- This is Ultimate 0.1.23-1cf7e2d-m [2018-03-29 21:15:05,665 INFO L170 SettingsManager]: Resetting all preferences to default values... [2018-03-29 21:15:05,666 INFO L174 SettingsManager]: Resetting UltimateCore preferences to default values [2018-03-29 21:15:05,683 INFO L177 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2018-03-29 21:15:05,683 INFO L174 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2018-03-29 21:15:05,684 INFO L174 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2018-03-29 21:15:05,685 INFO L174 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2018-03-29 21:15:05,689 INFO L174 SettingsManager]: Resetting LassoRanker preferences to default values [2018-03-29 21:15:05,692 INFO L174 SettingsManager]: Resetting Reaching Definitions preferences to default values [2018-03-29 21:15:05,693 INFO L174 SettingsManager]: Resetting SyntaxChecker preferences to default values [2018-03-29 21:15:05,695 INFO L177 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2018-03-29 21:15:05,695 INFO L174 SettingsManager]: Resetting LTL2Aut preferences to default values [2018-03-29 21:15:05,696 INFO L174 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2018-03-29 21:15:05,697 INFO L174 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2018-03-29 21:15:05,698 INFO L174 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2018-03-29 21:15:05,701 INFO L174 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2018-03-29 21:15:05,703 INFO L174 SettingsManager]: Resetting CodeCheck preferences to default values [2018-03-29 21:15:05,704 INFO L174 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2018-03-29 21:15:05,706 INFO L174 SettingsManager]: Resetting RCFGBuilder preferences to default values [2018-03-29 21:15:05,707 INFO L174 SettingsManager]: Resetting TraceAbstraction preferences to default values [2018-03-29 21:15:05,710 INFO L177 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2018-03-29 21:15:05,710 INFO L177 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2018-03-29 21:15:05,710 INFO L174 SettingsManager]: Resetting IcfgTransformer preferences to default values [2018-03-29 21:15:05,711 INFO L174 SettingsManager]: Resetting Boogie Printer preferences to default values [2018-03-29 21:15:05,712 INFO L174 SettingsManager]: Resetting Witness Printer preferences to default values [2018-03-29 21:15:05,714 INFO L177 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2018-03-29 21:15:05,714 INFO L174 SettingsManager]: Resetting CDTParser preferences to default values [2018-03-29 21:15:05,715 INFO L174 SettingsManager]: Resetting PEA to Boogie preferences to default values [2018-03-29 21:15:05,715 INFO L177 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2018-03-29 21:15:05,716 INFO L174 SettingsManager]: Resetting Witness Parser preferences to default values [2018-03-29 21:15:05,716 INFO L181 SettingsManager]: Finished resetting all preferences to default values... [2018-03-29 21:15:05,717 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 [2018-03-29 21:15:05,750 INFO L110 SettingsManager]: Loading preferences was successful [2018-03-29 21:15:05,751 INFO L112 SettingsManager]: Preferences different from defaults after loading the file: [2018-03-29 21:15:05,751 INFO L131 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2018-03-29 21:15:05,751 INFO L133 SettingsManager]: * ultimate.logging.details=de.uni_freiburg.informatik.ultimate.plugins.icfgtransformation=DEBUG; [2018-03-29 21:15:05,752 INFO L131 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2018-03-29 21:15:05,752 INFO L133 SettingsManager]: * to procedures, called more than once=true [2018-03-29 21:15:05,752 INFO L131 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2018-03-29 21:15:05,753 INFO L133 SettingsManager]: * Abstract domain for RCFG-of-the-future=VPDomain [2018-03-29 21:15:05,753 INFO L133 SettingsManager]: * Use the RCFG-of-the-future interface=true [2018-03-29 21:15:05,753 INFO L131 SettingsManager]: Preferences of LTL2Aut differ from their defaults: [2018-03-29 21:15:05,753 INFO L133 SettingsManager]: * Property to check=[] a a: x > 42 [2018-03-29 21:15:05,754 INFO L131 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2018-03-29 21:15:05,754 INFO L133 SettingsManager]: * sizeof long=4 [2018-03-29 21:15:05,754 INFO L133 SettingsManager]: * Check unreachability of error function in SV-COMP mode=false [2018-03-29 21:15:05,754 INFO L133 SettingsManager]: * Overapproximate operations on floating types=true [2018-03-29 21:15:05,755 INFO L133 SettingsManager]: * sizeof POINTER=4 [2018-03-29 21:15:05,755 INFO L133 SettingsManager]: * Check division by zero=IGNORE [2018-03-29 21:15:05,755 INFO L133 SettingsManager]: * Check for the main procedure if all allocated memory was freed=true [2018-03-29 21:15:05,755 INFO L133 SettingsManager]: * SV-COMP memtrack compatibility mode=true [2018-03-29 21:15:05,755 INFO L133 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2018-03-29 21:15:05,755 INFO L133 SettingsManager]: * sizeof long double=12 [2018-03-29 21:15:05,757 INFO L131 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2018-03-29 21:15:05,757 INFO L133 SettingsManager]: * Size of a code block=SingleStatement [2018-03-29 21:15:05,757 INFO L133 SettingsManager]: * Add additional assume for each assert=false [2018-03-29 21:15:05,757 INFO L133 SettingsManager]: * SMT solver=External_DefaultMode [2018-03-29 21:15:05,758 INFO L133 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2018-03-29 21:15:05,758 INFO L131 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2018-03-29 21:15:05,758 INFO L133 SettingsManager]: * Interpolant automaton=TWOTRACK [2018-03-29 21:15:05,758 INFO L133 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2018-03-29 21:15:05,758 INFO L133 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2018-03-29 21:15:05,759 INFO L133 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2018-03-29 21:15:05,759 INFO L133 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2018-03-29 21:15:05,759 INFO L133 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2018-03-29 21:15:05,761 INFO L131 SettingsManager]: Preferences of IcfgTransformer differ from their defaults: [2018-03-29 21:15:05,761 INFO L133 SettingsManager]: * TransformationType=HEAP_SEPARATOR [2018-03-29 21:15:05,761 INFO L131 SettingsManager]: Preferences of Boogie Printer differ from their defaults: [2018-03-29 21:15:05,762 INFO L133 SettingsManager]: * Dump path:=C:\Users\alex\AppData\Local\Temp\ [2018-03-29 21:15:05,822 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2018-03-29 21:15:05,839 INFO L266 ainManager$Toolchain]: [Toolchain 1]: Parser(s) successfully (re)initialized [2018-03-29 21:15:05,845 INFO L222 ainManager$Toolchain]: [Toolchain 1]: Toolchain data selected. [2018-03-29 21:15:05,847 INFO L271 PluginConnector]: Initializing CDTParser... [2018-03-29 21:15:05,848 INFO L276 PluginConnector]: CDTParser initialized [2018-03-29 21:15:05,848 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/list-ext-properties/960521-1_1_true-valid-memsafety.i [2018-03-29 21:15:06,233 INFO L225 CDTParser]: Created temporary CDT project at /storage/ultimate/releaseScripts/default/UAutomizer-linux/data/FLAG2cbf76085 [2018-03-29 21:15:06,442 INFO L287 CDTParser]: IsIndexed: true [2018-03-29 21:15:06,442 INFO L288 CDTParser]: Found 1 translation units. [2018-03-29 21:15:06,442 INFO L168 CDTParser]: Scanning 960521-1_1_true-valid-memsafety.i [2018-03-29 21:15:06,453 INFO L210 ultiparseSymbolTable]: Include resolver: [2018-03-29 21:15:06,453 INFO L215 ultiparseSymbolTable]: [2018-03-29 21:15:06,453 INFO L218 ultiparseSymbolTable]: Function table: [2018-03-29 21:15:06,454 INFO L221 ultiparseSymbolTable]: Function definition of null ('main') in 960521-1_1_true-valid-memsafety.i [2018-03-29 21:15:06,454 INFO L221 ultiparseSymbolTable]: Function definition of __U_MULTI_f___________true_valid_memsafety_i__foo ('foo') in 960521-1_1_true-valid-memsafety.i [2018-03-29 21:15:06,454 INFO L227 ultiparseSymbolTable]: Global variable table: [2018-03-29 21:15:06,454 INFO L230 ultiparseSymbolTable]: Global variable declaration of __U_MULTI_f___________true_valid_memsafety_i____uint8_t in 960521-1_1_true-valid-memsafety.i [2018-03-29 21:15:06,454 INFO L230 ultiparseSymbolTable]: Global variable declaration of __U_MULTI_f___________true_valid_memsafety_i____daddr_t in 960521-1_1_true-valid-memsafety.i [2018-03-29 21:15:06,454 INFO L230 ultiparseSymbolTable]: Global variable declaration of __U_MULTI_f___________true_valid_memsafety_i____key_t in 960521-1_1_true-valid-memsafety.i [2018-03-29 21:15:06,454 INFO L230 ultiparseSymbolTable]: Global variable declaration of __U_MULTI_f___________true_valid_memsafety_i__u_int8_t in 960521-1_1_true-valid-memsafety.i [2018-03-29 21:15:06,454 INFO L230 ultiparseSymbolTable]: Global variable declaration of __U_MULTI_f___________true_valid_memsafety_i____u_int in 960521-1_1_true-valid-memsafety.i [2018-03-29 21:15:06,455 INFO L230 ultiparseSymbolTable]: Global variable declaration of __U_MULTI_f___________true_valid_memsafety_i__loff_t in 960521-1_1_true-valid-memsafety.i [2018-03-29 21:15:06,455 INFO L230 ultiparseSymbolTable]: Global variable declaration of __U_MULTI_f___________true_valid_memsafety_i__quad_t in 960521-1_1_true-valid-memsafety.i [2018-03-29 21:15:06,455 INFO L230 ultiparseSymbolTable]: Global variable declaration of __U_MULTI_f___________true_valid_memsafety_i____clockid_t in 960521-1_1_true-valid-memsafety.i [2018-03-29 21:15:06,455 INFO L230 ultiparseSymbolTable]: Global variable declaration of __U_MULTI_f___________true_valid_memsafety_i__clockid_t in 960521-1_1_true-valid-memsafety.i [2018-03-29 21:15:06,455 INFO L230 ultiparseSymbolTable]: Global variable declaration of __U_MULTI_f___________true_valid_memsafety_i____blkcnt_t in 960521-1_1_true-valid-memsafety.i [2018-03-29 21:15:06,455 INFO L230 ultiparseSymbolTable]: Global variable declaration of __U_MULTI_f___________true_valid_memsafety_i____fd_mask in 960521-1_1_true-valid-memsafety.i [2018-03-29 21:15:06,455 INFO L230 ultiparseSymbolTable]: Global variable declaration of __U_MULTI_f___________true_valid_memsafety_i__fsid_t in 960521-1_1_true-valid-memsafety.i [2018-03-29 21:15:06,456 INFO L230 ultiparseSymbolTable]: Global variable declaration of __U_MULTI_f___________true_valid_memsafety_i__int64_t in 960521-1_1_true-valid-memsafety.i [2018-03-29 21:15:06,456 INFO L230 ultiparseSymbolTable]: Global variable declaration of __U_MULTI_f___________true_valid_memsafety_i__pthread_t in 960521-1_1_true-valid-memsafety.i [2018-03-29 21:15:06,456 INFO L230 ultiparseSymbolTable]: Global variable declaration of __U_MULTI_f___________true_valid_memsafety_i__u_int16_t in 960521-1_1_true-valid-memsafety.i [2018-03-29 21:15:06,456 INFO L230 ultiparseSymbolTable]: Global variable declaration of __U_MULTI_f___________true_valid_memsafety_i__pthread_cond_t in 960521-1_1_true-valid-memsafety.i [2018-03-29 21:15:06,456 INFO L230 ultiparseSymbolTable]: Global variable declaration of __U_MULTI_f___________true_valid_memsafety_i__pthread_spinlock_t in 960521-1_1_true-valid-memsafety.i [2018-03-29 21:15:06,456 INFO L230 ultiparseSymbolTable]: Global variable declaration of __U_MULTI_f___________true_valid_memsafety_i__id_t in 960521-1_1_true-valid-memsafety.i [2018-03-29 21:15:06,456 INFO L230 ultiparseSymbolTable]: Global variable declaration of __U_MULTI_f___________true_valid_memsafety_i____clock_t in 960521-1_1_true-valid-memsafety.i [2018-03-29 21:15:06,456 INFO L230 ultiparseSymbolTable]: Global variable declaration of __U_MULTI_f___________true_valid_memsafety_i____WAIT_STATUS in 960521-1_1_true-valid-memsafety.i [2018-03-29 21:15:06,457 INFO L230 ultiparseSymbolTable]: Global variable declaration of __U_MULTI_f___________true_valid_memsafety_i__dev_t in 960521-1_1_true-valid-memsafety.i [2018-03-29 21:15:06,457 INFO L230 ultiparseSymbolTable]: Global variable declaration of __U_MULTI_f___________true_valid_memsafety_i__pthread_condattr_t in 960521-1_1_true-valid-memsafety.i [2018-03-29 21:15:06,457 INFO L230 ultiparseSymbolTable]: Global variable declaration of __U_MULTI_f___________true_valid_memsafety_i__pthread_attr_t in 960521-1_1_true-valid-memsafety.i [2018-03-29 21:15:06,457 INFO L230 ultiparseSymbolTable]: Global variable declaration of __U_MULTI_f___________true_valid_memsafety_i____u_quad_t in 960521-1_1_true-valid-memsafety.i [2018-03-29 21:15:06,457 INFO L230 ultiparseSymbolTable]: Global variable declaration of __U_MULTI_f___________true_valid_memsafety_i____pid_t in 960521-1_1_true-valid-memsafety.i [2018-03-29 21:15:06,457 INFO L230 ultiparseSymbolTable]: Global variable declaration of __U_MULTI_f___________true_valid_memsafety_i__ushort in 960521-1_1_true-valid-memsafety.i [2018-03-29 21:15:06,457 INFO L230 ultiparseSymbolTable]: Global variable declaration of __U_MULTI_f___________true_valid_memsafety_i____quad_t in 960521-1_1_true-valid-memsafety.i [2018-03-29 21:15:06,457 INFO L230 ultiparseSymbolTable]: Global variable declaration of __U_MULTI_f___________true_valid_memsafety_i____fsblkcnt64_t in 960521-1_1_true-valid-memsafety.i [2018-03-29 21:15:06,458 INFO L230 ultiparseSymbolTable]: Global variable declaration of __U_MULTI_f___________true_valid_memsafety_i__wchar_t in 960521-1_1_true-valid-memsafety.i [2018-03-29 21:15:06,458 INFO L230 ultiparseSymbolTable]: Global variable declaration of __U_MULTI_f___________true_valid_memsafety_i__register_t in 960521-1_1_true-valid-memsafety.i [2018-03-29 21:15:06,458 INFO L230 ultiparseSymbolTable]: Global variable declaration of __U_MULTI_f___________true_valid_memsafety_i____int64_t in 960521-1_1_true-valid-memsafety.i [2018-03-29 21:15:06,458 INFO L230 ultiparseSymbolTable]: Global variable declaration of __U_MULTI_f___________true_valid_memsafety_i____useconds_t in 960521-1_1_true-valid-memsafety.i [2018-03-29 21:15:06,458 INFO L230 ultiparseSymbolTable]: Global variable declaration of __U_MULTI_f___________true_valid_memsafety_i____swblk_t in 960521-1_1_true-valid-memsafety.i [2018-03-29 21:15:06,458 INFO L230 ultiparseSymbolTable]: Global variable declaration of __U_MULTI_f___________true_valid_memsafety_i__pthread_barrier_t in 960521-1_1_true-valid-memsafety.i [2018-03-29 21:15:06,458 INFO L230 ultiparseSymbolTable]: Global variable declaration of __U_MULTI_f___________true_valid_memsafety_i____nlink_t in 960521-1_1_true-valid-memsafety.i [2018-03-29 21:15:06,458 INFO L230 ultiparseSymbolTable]: Global variable declaration of __U_MULTI_f___________true_valid_memsafety_i__timer_t in 960521-1_1_true-valid-memsafety.i [2018-03-29 21:15:06,458 INFO L230 ultiparseSymbolTable]: Global variable declaration of __U_MULTI_f___________true_valid_memsafety_i__u_int32_t in 960521-1_1_true-valid-memsafety.i [2018-03-29 21:15:06,458 INFO L230 ultiparseSymbolTable]: Global variable declaration of __U_MULTI_f___________true_valid_memsafety_i__sigset_t in 960521-1_1_true-valid-memsafety.i [2018-03-29 21:15:06,458 INFO L230 ultiparseSymbolTable]: Global variable declaration of __U_MULTI_f___________true_valid_memsafety_i____gid_t in 960521-1_1_true-valid-memsafety.i [2018-03-29 21:15:06,458 INFO L230 ultiparseSymbolTable]: Global variable declaration of __U_MULTI_f___________true_valid_memsafety_i____sig_atomic_t in 960521-1_1_true-valid-memsafety.i [2018-03-29 21:15:06,458 INFO L230 ultiparseSymbolTable]: Global variable declaration of __U_MULTI_f___________true_valid_memsafety_i____uid_t in 960521-1_1_true-valid-memsafety.i [2018-03-29 21:15:06,459 INFO L230 ultiparseSymbolTable]: Global variable declaration of __U_MULTI_f___________true_valid_memsafety_i__key_t in 960521-1_1_true-valid-memsafety.i [2018-03-29 21:15:06,459 INFO L230 ultiparseSymbolTable]: Global variable declaration of __U_MULTI_f___________true_valid_memsafety_i____ssize_t in 960521-1_1_true-valid-memsafety.i [2018-03-29 21:15:06,459 INFO L230 ultiparseSymbolTable]: Global variable declaration of __U_MULTI_f___________true_valid_memsafety_i____ino64_t in 960521-1_1_true-valid-memsafety.i [2018-03-29 21:15:06,459 INFO L230 ultiparseSymbolTable]: Global variable declaration of __U_MULTI_f___________true_valid_memsafety_i__int32_t in 960521-1_1_true-valid-memsafety.i [2018-03-29 21:15:06,459 INFO L230 ultiparseSymbolTable]: Global variable declaration of __U_MULTI_f___________true_valid_memsafety_i__nlink_t in 960521-1_1_true-valid-memsafety.i [2018-03-29 21:15:06,459 INFO L230 ultiparseSymbolTable]: Global variable declaration of __U_MULTI_f___________true_valid_memsafety_i__uint in 960521-1_1_true-valid-memsafety.i [2018-03-29 21:15:06,459 INFO L230 ultiparseSymbolTable]: Global variable declaration of __U_MULTI_f___________true_valid_memsafety_i____uint64_t in 960521-1_1_true-valid-memsafety.i [2018-03-29 21:15:06,459 INFO L230 ultiparseSymbolTable]: Global variable declaration of __U_MULTI_f___________true_valid_memsafety_i__ssize_t in 960521-1_1_true-valid-memsafety.i [2018-03-29 21:15:06,459 INFO L230 ultiparseSymbolTable]: Global variable declaration of __U_MULTI_f___________true_valid_memsafety_i__pthread_rwlockattr_t in 960521-1_1_true-valid-memsafety.i [2018-03-29 21:15:06,459 INFO L230 ultiparseSymbolTable]: Global variable declaration of __U_MULTI_f___________true_valid_memsafety_i____off_t in 960521-1_1_true-valid-memsafety.i [2018-03-29 21:15:06,459 INFO L230 ultiparseSymbolTable]: Global variable declaration of __U_MULTI_f___________true_valid_memsafety_i____blkcnt64_t in 960521-1_1_true-valid-memsafety.i [2018-03-29 21:15:06,459 INFO L230 ultiparseSymbolTable]: Global variable declaration of __U_MULTI_f___________true_valid_memsafety_i__fd_mask in 960521-1_1_true-valid-memsafety.i [2018-03-29 21:15:06,460 INFO L230 ultiparseSymbolTable]: Global variable declaration of __U_MULTI_f___________true_valid_memsafety_i__fsfilcnt_t in 960521-1_1_true-valid-memsafety.i [2018-03-29 21:15:06,460 INFO L230 ultiparseSymbolTable]: Global variable declaration of __U_MULTI_f___________true_valid_memsafety_i____suseconds_t in 960521-1_1_true-valid-memsafety.i [2018-03-29 21:15:06,460 INFO L230 ultiparseSymbolTable]: Global variable declaration of __U_MULTI_f___________true_valid_memsafety_i__time_t in 960521-1_1_true-valid-memsafety.i [2018-03-29 21:15:06,460 INFO L230 ultiparseSymbolTable]: Global variable declaration of __U_MULTI_f___________true_valid_memsafety_i____rlim64_t in 960521-1_1_true-valid-memsafety.i [2018-03-29 21:15:06,460 INFO L230 ultiparseSymbolTable]: Global variable declaration of __U_MULTI_f___________true_valid_memsafety_i__caddr_t in 960521-1_1_true-valid-memsafety.i [2018-03-29 21:15:06,460 INFO L230 ultiparseSymbolTable]: Global variable declaration of __U_MULTI_f___________true_valid_memsafety_i____id_t in 960521-1_1_true-valid-memsafety.i [2018-03-29 21:15:06,460 INFO L230 ultiparseSymbolTable]: Global variable declaration of __U_MULTI_f___________true_valid_memsafety_i__pthread_rwlock_t in 960521-1_1_true-valid-memsafety.i [2018-03-29 21:15:06,460 INFO L230 ultiparseSymbolTable]: Global variable declaration of __U_MULTI_f___________true_valid_memsafety_i____qaddr_t in 960521-1_1_true-valid-memsafety.i [2018-03-29 21:15:06,460 INFO L230 ultiparseSymbolTable]: Global variable declaration of __U_MULTI_f___________true_valid_memsafety_i__u_int in 960521-1_1_true-valid-memsafety.i [2018-03-29 21:15:06,460 INFO L230 ultiparseSymbolTable]: Global variable declaration of __U_MULTI_f___________true_valid_memsafety_i____blksize_t in 960521-1_1_true-valid-memsafety.i [2018-03-29 21:15:06,461 INFO L230 ultiparseSymbolTable]: Global variable declaration of __U_MULTI_f___________true_valid_memsafety_i__blksize_t in 960521-1_1_true-valid-memsafety.i [2018-03-29 21:15:06,461 INFO L230 ultiparseSymbolTable]: Global variable declaration of __U_MULTI_f___________true_valid_memsafety_i____int32_t in 960521-1_1_true-valid-memsafety.i [2018-03-29 21:15:06,461 INFO L230 ultiparseSymbolTable]: Global variable declaration of __U_MULTI_f___________true_valid_memsafety_i__div_t in 960521-1_1_true-valid-memsafety.i [2018-03-29 21:15:06,461 INFO L230 ultiparseSymbolTable]: Global variable declaration of __U_MULTI_f___________true_valid_memsafety_i____uint32_t in 960521-1_1_true-valid-memsafety.i [2018-03-29 21:15:06,461 INFO L230 ultiparseSymbolTable]: Global variable declaration of __U_MULTI_f___________true_valid_memsafety_i__fsblkcnt_t in 960521-1_1_true-valid-memsafety.i [2018-03-29 21:15:06,461 INFO L230 ultiparseSymbolTable]: Global variable declaration of __U_MULTI_f___________true_valid_memsafety_i____timer_t in 960521-1_1_true-valid-memsafety.i [2018-03-29 21:15:06,461 INFO L230 ultiparseSymbolTable]: Global variable declaration of __U_MULTI_f___________true_valid_memsafety_i____off64_t in 960521-1_1_true-valid-memsafety.i [2018-03-29 21:15:06,461 INFO L230 ultiparseSymbolTable]: Global variable declaration of __U_MULTI_f___________true_valid_memsafety_i____time_t in 960521-1_1_true-valid-memsafety.i [2018-03-29 21:15:06,461 INFO L230 ultiparseSymbolTable]: Global variable declaration of __U_MULTI_f___________true_valid_memsafety_i____intptr_t in 960521-1_1_true-valid-memsafety.i [2018-03-29 21:15:06,462 INFO L230 ultiparseSymbolTable]: Global variable declaration of __U_MULTI_f___________true_valid_memsafety_i__pthread_mutexattr_t in 960521-1_1_true-valid-memsafety.i [2018-03-29 21:15:06,462 INFO L230 ultiparseSymbolTable]: Global variable declaration of __U_MULTI_f___________true_valid_memsafety_i__u_quad_t in 960521-1_1_true-valid-memsafety.i [2018-03-29 21:15:06,462 INFO L230 ultiparseSymbolTable]: Global variable declaration of __U_MULTI_f___________true_valid_memsafety_i__size_t in 960521-1_1_true-valid-memsafety.i [2018-03-29 21:15:06,462 INFO L230 ultiparseSymbolTable]: Global variable declaration of __U_MULTI_f___________true_valid_memsafety_i____fsfilcnt_t in 960521-1_1_true-valid-memsafety.i [2018-03-29 21:15:06,462 INFO L230 ultiparseSymbolTable]: Global variable declaration of __U_MULTI_f___________true_valid_memsafety_i__n in 960521-1_1_true-valid-memsafety.i [2018-03-29 21:15:06,462 INFO L230 ultiparseSymbolTable]: Global variable declaration of __U_MULTI_f___________true_valid_memsafety_i____u_char in 960521-1_1_true-valid-memsafety.i [2018-03-29 21:15:06,462 INFO L230 ultiparseSymbolTable]: Global variable declaration of __U_MULTI_f___________true_valid_memsafety_i__int16_t in 960521-1_1_true-valid-memsafety.i [2018-03-29 21:15:06,462 INFO L230 ultiparseSymbolTable]: Global variable declaration of __U_MULTI_f___________true_valid_memsafety_i____fsblkcnt_t in 960521-1_1_true-valid-memsafety.i [2018-03-29 21:15:06,462 INFO L230 ultiparseSymbolTable]: Global variable declaration of __U_MULTI_f___________true_valid_memsafety_i__int8_t in 960521-1_1_true-valid-memsafety.i [2018-03-29 21:15:06,463 INFO L230 ultiparseSymbolTable]: Global variable declaration of __U_MULTI_f___________true_valid_memsafety_i__pthread_key_t in 960521-1_1_true-valid-memsafety.i [2018-03-29 21:15:06,463 INFO L230 ultiparseSymbolTable]: Global variable declaration of __U_MULTI_f___________true_valid_memsafety_i__lldiv_t in 960521-1_1_true-valid-memsafety.i [2018-03-29 21:15:06,463 INFO L230 ultiparseSymbolTable]: Global variable declaration of __U_MULTI_f___________true_valid_memsafety_i____rlim_t in 960521-1_1_true-valid-memsafety.i [2018-03-29 21:15:06,463 INFO L230 ultiparseSymbolTable]: Global variable declaration of __U_MULTI_f___________true_valid_memsafety_i____socklen_t in 960521-1_1_true-valid-memsafety.i [2018-03-29 21:15:06,463 INFO L230 ultiparseSymbolTable]: Global variable declaration of __U_MULTI_f___________true_valid_memsafety_i__uid_t in 960521-1_1_true-valid-memsafety.i [2018-03-29 21:15:06,463 INFO L230 ultiparseSymbolTable]: Global variable declaration of __U_MULTI_f___________true_valid_memsafety_i____pthread_list_t in 960521-1_1_true-valid-memsafety.i [2018-03-29 21:15:06,463 INFO L230 ultiparseSymbolTable]: Global variable declaration of __U_MULTI_f___________true_valid_memsafety_i__pthread_barrierattr_t in 960521-1_1_true-valid-memsafety.i [2018-03-29 21:15:06,463 INFO L230 ultiparseSymbolTable]: Global variable declaration of __U_MULTI_f___________true_valid_memsafety_i__b in 960521-1_1_true-valid-memsafety.i [2018-03-29 21:15:06,463 INFO L230 ultiparseSymbolTable]: Global variable declaration of __U_MULTI_f___________true_valid_memsafety_i__a in 960521-1_1_true-valid-memsafety.i [2018-03-29 21:15:06,464 INFO L230 ultiparseSymbolTable]: Global variable declaration of __U_MULTI_f___________true_valid_memsafety_i__ldiv_t in 960521-1_1_true-valid-memsafety.i [2018-03-29 21:15:06,464 INFO L230 ultiparseSymbolTable]: Global variable declaration of __U_MULTI_f___________true_valid_memsafety_i____fsfilcnt64_t in 960521-1_1_true-valid-memsafety.i [2018-03-29 21:15:06,464 INFO L230 ultiparseSymbolTable]: Global variable declaration of __U_MULTI_f___________true_valid_memsafety_i__pthread_mutex_t in 960521-1_1_true-valid-memsafety.i [2018-03-29 21:15:06,464 INFO L230 ultiparseSymbolTable]: Global variable declaration of __U_MULTI_f___________true_valid_memsafety_i__ino_t in 960521-1_1_true-valid-memsafety.i [2018-03-29 21:15:06,464 INFO L230 ultiparseSymbolTable]: Global variable declaration of __U_MULTI_f___________true_valid_memsafety_i__u_short in 960521-1_1_true-valid-memsafety.i [2018-03-29 21:15:06,464 INFO L230 ultiparseSymbolTable]: Global variable declaration of __U_MULTI_f___________true_valid_memsafety_i__off_t in 960521-1_1_true-valid-memsafety.i [2018-03-29 21:15:06,464 INFO L230 ultiparseSymbolTable]: Global variable declaration of __U_MULTI_f___________true_valid_memsafety_i__gid_t in 960521-1_1_true-valid-memsafety.i [2018-03-29 21:15:06,464 INFO L230 ultiparseSymbolTable]: Global variable declaration of __U_MULTI_f___________true_valid_memsafety_i____int8_t in 960521-1_1_true-valid-memsafety.i [2018-03-29 21:15:06,464 INFO L230 ultiparseSymbolTable]: Global variable declaration of __U_MULTI_f___________true_valid_memsafety_i__u_char in 960521-1_1_true-valid-memsafety.i [2018-03-29 21:15:06,465 INFO L230 ultiparseSymbolTable]: Global variable declaration of __U_MULTI_f___________true_valid_memsafety_i__blkcnt_t in 960521-1_1_true-valid-memsafety.i [2018-03-29 21:15:06,465 INFO L230 ultiparseSymbolTable]: Global variable declaration of __U_MULTI_f___________true_valid_memsafety_i__u_int64_t in 960521-1_1_true-valid-memsafety.i [2018-03-29 21:15:06,465 INFO L230 ultiparseSymbolTable]: Global variable declaration of __U_MULTI_f___________true_valid_memsafety_i____uint16_t in 960521-1_1_true-valid-memsafety.i [2018-03-29 21:15:06,465 INFO L230 ultiparseSymbolTable]: Global variable declaration of __U_MULTI_f___________true_valid_memsafety_i__daddr_t in 960521-1_1_true-valid-memsafety.i [2018-03-29 21:15:06,465 INFO L230 ultiparseSymbolTable]: Global variable declaration of __U_MULTI_f___________true_valid_memsafety_i____mode_t in 960521-1_1_true-valid-memsafety.i [2018-03-29 21:15:06,465 INFO L230 ultiparseSymbolTable]: Global variable declaration of __U_MULTI_f___________true_valid_memsafety_i__pthread_once_t in 960521-1_1_true-valid-memsafety.i [2018-03-29 21:15:06,465 INFO L230 ultiparseSymbolTable]: Global variable declaration of __U_MULTI_f___________true_valid_memsafety_i____u_long in 960521-1_1_true-valid-memsafety.i [2018-03-29 21:15:06,465 INFO L230 ultiparseSymbolTable]: Global variable declaration of __U_MULTI_f___________true_valid_memsafety_i____int16_t in 960521-1_1_true-valid-memsafety.i [2018-03-29 21:15:06,466 INFO L230 ultiparseSymbolTable]: Global variable declaration of __U_MULTI_f___________true_valid_memsafety_i____caddr_t in 960521-1_1_true-valid-memsafety.i [2018-03-29 21:15:06,466 INFO L230 ultiparseSymbolTable]: Global variable declaration of __U_MULTI_f___________true_valid_memsafety_i____ino_t in 960521-1_1_true-valid-memsafety.i [2018-03-29 21:15:06,466 INFO L230 ultiparseSymbolTable]: Global variable declaration of __U_MULTI_f___________true_valid_memsafety_i____dev_t in 960521-1_1_true-valid-memsafety.i [2018-03-29 21:15:06,466 INFO L230 ultiparseSymbolTable]: Global variable declaration of __U_MULTI_f___________true_valid_memsafety_i____loff_t in 960521-1_1_true-valid-memsafety.i [2018-03-29 21:15:06,467 INFO L230 ultiparseSymbolTable]: Global variable declaration of __U_MULTI_f___________true_valid_memsafety_i____sigset_t in 960521-1_1_true-valid-memsafety.i [2018-03-29 21:15:06,467 INFO L230 ultiparseSymbolTable]: Global variable declaration of __U_MULTI_f___________true_valid_memsafety_i__fd_set in 960521-1_1_true-valid-memsafety.i [2018-03-29 21:15:06,467 INFO L230 ultiparseSymbolTable]: Global variable declaration of __U_MULTI_f___________true_valid_memsafety_i____u_short in 960521-1_1_true-valid-memsafety.i [2018-03-29 21:15:06,467 INFO L230 ultiparseSymbolTable]: Global variable declaration of __U_MULTI_f___________true_valid_memsafety_i____fsid_t in 960521-1_1_true-valid-memsafety.i [2018-03-29 21:15:06,467 INFO L230 ultiparseSymbolTable]: Global variable declaration of __U_MULTI_f___________true_valid_memsafety_i__clock_t in 960521-1_1_true-valid-memsafety.i [2018-03-29 21:15:06,467 INFO L230 ultiparseSymbolTable]: Global variable declaration of __U_MULTI_f___________true_valid_memsafety_i__suseconds_t in 960521-1_1_true-valid-memsafety.i [2018-03-29 21:15:06,467 INFO L230 ultiparseSymbolTable]: Global variable declaration of __U_MULTI_f___________true_valid_memsafety_i__mode_t in 960521-1_1_true-valid-memsafety.i [2018-03-29 21:15:06,467 INFO L230 ultiparseSymbolTable]: Global variable declaration of __U_MULTI_f___________true_valid_memsafety_i__ulong in 960521-1_1_true-valid-memsafety.i [2018-03-29 21:15:06,468 INFO L230 ultiparseSymbolTable]: Global variable declaration of __U_MULTI_f___________true_valid_memsafety_i__u_long in 960521-1_1_true-valid-memsafety.i [2018-03-29 21:15:06,468 INFO L230 ultiparseSymbolTable]: Global variable declaration of __U_MULTI_f___________true_valid_memsafety_i__pid_t in 960521-1_1_true-valid-memsafety.i [2018-03-29 21:15:06,488 INFO L330 CDTParser]: Deleted temporary CDT project at /storage/ultimate/releaseScripts/default/UAutomizer-linux/data/FLAG2cbf76085 [2018-03-29 21:15:06,493 INFO L304 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2018-03-29 21:15:06,496 INFO L131 ToolchainWalker]: Walking toolchain with 4 elements. [2018-03-29 21:15:06,497 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2018-03-29 21:15:06,498 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2018-03-29 21:15:06,503 INFO L276 PluginConnector]: CACSL2BoogieTranslator initialized [2018-03-29 21:15:06,504 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 29.03 09:15:06" (1/1) ... [2018-03-29 21:15:06,506 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@6b493db0 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.03 09:15:06, skipping insertion in model container [2018-03-29 21:15:06,506 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 29.03 09:15:06" (1/1) ... [2018-03-29 21:15:06,521 INFO L167 Dispatcher]: Using SV-COMP mode [2018-03-29 21:15:06,556 INFO L167 Dispatcher]: Using SV-COMP mode [2018-03-29 21:15:06,723 INFO L175 PostProcessor]: Settings: Checked method=main [2018-03-29 21:15:06,782 INFO L175 PostProcessor]: Settings: Checked method=main [2018-03-29 21:15:06,792 INFO L100 SccComputation]: Graph consists of 0 InCaSumBalls and 112 non ball SCCs. Number of states in SCCs 112. [2018-03-29 21:15:06,839 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.03 09:15:06 WrapperNode [2018-03-29 21:15:06,840 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2018-03-29 21:15:06,841 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2018-03-29 21:15:06,841 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2018-03-29 21:15:06,841 INFO L276 PluginConnector]: Boogie Preprocessor initialized [2018-03-29 21:15:06,854 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.03 09:15:06" (1/1) ... [2018-03-29 21:15:06,855 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.03 09:15:06" (1/1) ... [2018-03-29 21:15:06,871 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.03 09:15:06" (1/1) ... [2018-03-29 21:15:06,871 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.03 09:15:06" (1/1) ... [2018-03-29 21:15:06,883 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.03 09:15:06" (1/1) ... [2018-03-29 21:15:06,888 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.03 09:15:06" (1/1) ... [2018-03-29 21:15:06,891 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.03 09:15:06" (1/1) ... [2018-03-29 21:15:06,896 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2018-03-29 21:15:06,896 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2018-03-29 21:15:06,897 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2018-03-29 21:15:06,897 INFO L276 PluginConnector]: RCFGBuilder initialized [2018-03-29 21:15:06,898 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.03 09:15:06" (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 [2018-03-29 21:15:07,024 INFO L136 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2018-03-29 21:15:07,024 INFO L136 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2018-03-29 21:15:07,024 INFO L136 BoogieDeclarations]: Found implementation of procedure __U_MULTI_f___________true_valid_memsafety_i__foo [2018-03-29 21:15:07,024 INFO L136 BoogieDeclarations]: Found implementation of procedure main [2018-03-29 21:15:07,025 INFO L128 BoogieDeclarations]: Found specification of procedure __VERIFIER_error [2018-03-29 21:15:07,025 INFO L128 BoogieDeclarations]: Found specification of procedure __ctype_get_mb_cur_max [2018-03-29 21:15:07,025 INFO L128 BoogieDeclarations]: Found specification of procedure atof [2018-03-29 21:15:07,025 INFO L128 BoogieDeclarations]: Found specification of procedure atoi [2018-03-29 21:15:07,025 INFO L128 BoogieDeclarations]: Found specification of procedure atol [2018-03-29 21:15:07,025 INFO L128 BoogieDeclarations]: Found specification of procedure atoll [2018-03-29 21:15:07,025 INFO L128 BoogieDeclarations]: Found specification of procedure strtod [2018-03-29 21:15:07,026 INFO L128 BoogieDeclarations]: Found specification of procedure strtof [2018-03-29 21:15:07,026 INFO L128 BoogieDeclarations]: Found specification of procedure strtold [2018-03-29 21:15:07,026 INFO L128 BoogieDeclarations]: Found specification of procedure strtol [2018-03-29 21:15:07,026 INFO L128 BoogieDeclarations]: Found specification of procedure strtoul [2018-03-29 21:15:07,026 INFO L128 BoogieDeclarations]: Found specification of procedure strtoq [2018-03-29 21:15:07,026 INFO L128 BoogieDeclarations]: Found specification of procedure strtouq [2018-03-29 21:15:07,026 INFO L128 BoogieDeclarations]: Found specification of procedure strtoll [2018-03-29 21:15:07,026 INFO L128 BoogieDeclarations]: Found specification of procedure strtoull [2018-03-29 21:15:07,027 INFO L128 BoogieDeclarations]: Found specification of procedure l64a [2018-03-29 21:15:07,027 INFO L128 BoogieDeclarations]: Found specification of procedure a64l [2018-03-29 21:15:07,027 INFO L128 BoogieDeclarations]: Found specification of procedure select [2018-03-29 21:15:07,027 INFO L128 BoogieDeclarations]: Found specification of procedure pselect [2018-03-29 21:15:07,027 INFO L128 BoogieDeclarations]: Found specification of procedure gnu_dev_major [2018-03-29 21:15:07,027 INFO L128 BoogieDeclarations]: Found specification of procedure gnu_dev_minor [2018-03-29 21:15:07,027 INFO L128 BoogieDeclarations]: Found specification of procedure gnu_dev_makedev [2018-03-29 21:15:07,028 INFO L128 BoogieDeclarations]: Found specification of procedure random [2018-03-29 21:15:07,028 INFO L128 BoogieDeclarations]: Found specification of procedure srandom [2018-03-29 21:15:07,028 INFO L128 BoogieDeclarations]: Found specification of procedure initstate [2018-03-29 21:15:07,028 INFO L128 BoogieDeclarations]: Found specification of procedure setstate [2018-03-29 21:15:07,028 INFO L128 BoogieDeclarations]: Found specification of procedure random_r [2018-03-29 21:15:07,028 INFO L128 BoogieDeclarations]: Found specification of procedure srandom_r [2018-03-29 21:15:07,028 INFO L128 BoogieDeclarations]: Found specification of procedure initstate_r [2018-03-29 21:15:07,028 INFO L128 BoogieDeclarations]: Found specification of procedure setstate_r [2018-03-29 21:15:07,029 INFO L128 BoogieDeclarations]: Found specification of procedure rand [2018-03-29 21:15:07,029 INFO L128 BoogieDeclarations]: Found specification of procedure srand [2018-03-29 21:15:07,029 INFO L128 BoogieDeclarations]: Found specification of procedure rand_r [2018-03-29 21:15:07,029 INFO L128 BoogieDeclarations]: Found specification of procedure drand48 [2018-03-29 21:15:07,029 INFO L128 BoogieDeclarations]: Found specification of procedure erand48 [2018-03-29 21:15:07,029 INFO L128 BoogieDeclarations]: Found specification of procedure lrand48 [2018-03-29 21:15:07,029 INFO L128 BoogieDeclarations]: Found specification of procedure nrand48 [2018-03-29 21:15:07,029 INFO L128 BoogieDeclarations]: Found specification of procedure mrand48 [2018-03-29 21:15:07,029 INFO L128 BoogieDeclarations]: Found specification of procedure jrand48 [2018-03-29 21:15:07,029 INFO L128 BoogieDeclarations]: Found specification of procedure srand48 [2018-03-29 21:15:07,029 INFO L128 BoogieDeclarations]: Found specification of procedure seed48 [2018-03-29 21:15:07,030 INFO L128 BoogieDeclarations]: Found specification of procedure lcong48 [2018-03-29 21:15:07,030 INFO L128 BoogieDeclarations]: Found specification of procedure drand48_r [2018-03-29 21:15:07,030 INFO L128 BoogieDeclarations]: Found specification of procedure erand48_r [2018-03-29 21:15:07,030 INFO L128 BoogieDeclarations]: Found specification of procedure lrand48_r [2018-03-29 21:15:07,030 INFO L128 BoogieDeclarations]: Found specification of procedure nrand48_r [2018-03-29 21:15:07,030 INFO L128 BoogieDeclarations]: Found specification of procedure mrand48_r [2018-03-29 21:15:07,030 INFO L128 BoogieDeclarations]: Found specification of procedure jrand48_r [2018-03-29 21:15:07,030 INFO L128 BoogieDeclarations]: Found specification of procedure srand48_r [2018-03-29 21:15:07,031 INFO L128 BoogieDeclarations]: Found specification of procedure seed48_r [2018-03-29 21:15:07,031 INFO L128 BoogieDeclarations]: Found specification of procedure lcong48_r [2018-03-29 21:15:07,031 INFO L128 BoogieDeclarations]: Found specification of procedure malloc [2018-03-29 21:15:07,031 INFO L128 BoogieDeclarations]: Found specification of procedure calloc [2018-03-29 21:15:07,031 INFO L128 BoogieDeclarations]: Found specification of procedure realloc [2018-03-29 21:15:07,031 INFO L128 BoogieDeclarations]: Found specification of procedure free [2018-03-29 21:15:07,031 INFO L128 BoogieDeclarations]: Found specification of procedure cfree [2018-03-29 21:15:07,031 INFO L128 BoogieDeclarations]: Found specification of procedure alloca [2018-03-29 21:15:07,031 INFO L128 BoogieDeclarations]: Found specification of procedure valloc [2018-03-29 21:15:07,031 INFO L128 BoogieDeclarations]: Found specification of procedure posix_memalign [2018-03-29 21:15:07,031 INFO L128 BoogieDeclarations]: Found specification of procedure abort [2018-03-29 21:15:07,031 INFO L128 BoogieDeclarations]: Found specification of procedure atexit [2018-03-29 21:15:07,032 INFO L128 BoogieDeclarations]: Found specification of procedure on_exit [2018-03-29 21:15:07,032 INFO L128 BoogieDeclarations]: Found specification of procedure exit [2018-03-29 21:15:07,032 INFO L128 BoogieDeclarations]: Found specification of procedure _Exit [2018-03-29 21:15:07,032 INFO L128 BoogieDeclarations]: Found specification of procedure getenv [2018-03-29 21:15:07,032 INFO L128 BoogieDeclarations]: Found specification of procedure __secure_getenv [2018-03-29 21:15:07,032 INFO L128 BoogieDeclarations]: Found specification of procedure putenv [2018-03-29 21:15:07,032 INFO L128 BoogieDeclarations]: Found specification of procedure setenv [2018-03-29 21:15:07,032 INFO L128 BoogieDeclarations]: Found specification of procedure unsetenv [2018-03-29 21:15:07,032 INFO L128 BoogieDeclarations]: Found specification of procedure clearenv [2018-03-29 21:15:07,032 INFO L128 BoogieDeclarations]: Found specification of procedure mktemp [2018-03-29 21:15:07,032 INFO L128 BoogieDeclarations]: Found specification of procedure mkstemp [2018-03-29 21:15:07,032 INFO L128 BoogieDeclarations]: Found specification of procedure mkstemps [2018-03-29 21:15:07,032 INFO L128 BoogieDeclarations]: Found specification of procedure mkdtemp [2018-03-29 21:15:07,033 INFO L128 BoogieDeclarations]: Found specification of procedure system [2018-03-29 21:15:07,033 INFO L128 BoogieDeclarations]: Found specification of procedure realpath [2018-03-29 21:15:07,033 INFO L128 BoogieDeclarations]: Found specification of procedure bsearch [2018-03-29 21:15:07,033 INFO L128 BoogieDeclarations]: Found specification of procedure qsort [2018-03-29 21:15:07,033 INFO L128 BoogieDeclarations]: Found specification of procedure abs [2018-03-29 21:15:07,033 INFO L128 BoogieDeclarations]: Found specification of procedure labs [2018-03-29 21:15:07,033 INFO L128 BoogieDeclarations]: Found specification of procedure llabs [2018-03-29 21:15:07,033 INFO L128 BoogieDeclarations]: Found specification of procedure div [2018-03-29 21:15:07,033 INFO L128 BoogieDeclarations]: Found specification of procedure ldiv [2018-03-29 21:15:07,033 INFO L128 BoogieDeclarations]: Found specification of procedure lldiv [2018-03-29 21:15:07,034 INFO L128 BoogieDeclarations]: Found specification of procedure ecvt [2018-03-29 21:15:07,034 INFO L128 BoogieDeclarations]: Found specification of procedure fcvt [2018-03-29 21:15:07,034 INFO L128 BoogieDeclarations]: Found specification of procedure gcvt [2018-03-29 21:15:07,034 INFO L128 BoogieDeclarations]: Found specification of procedure qecvt [2018-03-29 21:15:07,034 INFO L128 BoogieDeclarations]: Found specification of procedure qfcvt [2018-03-29 21:15:07,034 INFO L128 BoogieDeclarations]: Found specification of procedure qgcvt [2018-03-29 21:15:07,034 INFO L128 BoogieDeclarations]: Found specification of procedure ecvt_r [2018-03-29 21:15:07,034 INFO L128 BoogieDeclarations]: Found specification of procedure fcvt_r [2018-03-29 21:15:07,035 INFO L128 BoogieDeclarations]: Found specification of procedure qecvt_r [2018-03-29 21:15:07,035 INFO L128 BoogieDeclarations]: Found specification of procedure qfcvt_r [2018-03-29 21:15:07,035 INFO L128 BoogieDeclarations]: Found specification of procedure mblen [2018-03-29 21:15:07,035 INFO L128 BoogieDeclarations]: Found specification of procedure mbtowc [2018-03-29 21:15:07,035 INFO L128 BoogieDeclarations]: Found specification of procedure wctomb [2018-03-29 21:15:07,035 INFO L128 BoogieDeclarations]: Found specification of procedure mbstowcs [2018-03-29 21:15:07,035 INFO L128 BoogieDeclarations]: Found specification of procedure wcstombs [2018-03-29 21:15:07,035 INFO L128 BoogieDeclarations]: Found specification of procedure rpmatch [2018-03-29 21:15:07,036 INFO L128 BoogieDeclarations]: Found specification of procedure getsubopt [2018-03-29 21:15:07,036 INFO L128 BoogieDeclarations]: Found specification of procedure getloadavg [2018-03-29 21:15:07,036 INFO L128 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_int [2018-03-29 21:15:07,036 INFO L128 BoogieDeclarations]: Found specification of procedure __U_MULTI_f___________true_valid_memsafety_i__foo [2018-03-29 21:15:07,036 INFO L128 BoogieDeclarations]: Found specification of procedure write~int [2018-03-29 21:15:07,036 INFO L128 BoogieDeclarations]: Found specification of procedure main [2018-03-29 21:15:07,036 INFO L128 BoogieDeclarations]: Found specification of procedure #Ultimate.alloc [2018-03-29 21:15:07,036 INFO L128 BoogieDeclarations]: Found specification of procedure read~int [2018-03-29 21:15:07,036 INFO L128 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2018-03-29 21:15:07,036 INFO L128 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2018-03-29 21:15:07,037 INFO L128 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2018-03-29 21:15:07,037 INFO L128 BoogieDeclarations]: Found specification of procedure write~unchecked~int [2018-03-29 21:15:07,778 INFO L259 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2018-03-29 21:15:07,779 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 29.03 09:15:07 BoogieIcfgContainer [2018-03-29 21:15:07,779 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2018-03-29 21:15:07,780 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2018-03-29 21:15:07,780 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2018-03-29 21:15:07,782 INFO L276 PluginConnector]: TraceAbstraction initialized [2018-03-29 21:15:07,782 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 29.03 09:15:06" (1/3) ... [2018-03-29 21:15:07,783 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@57501446 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 29.03 09:15:07, skipping insertion in model container [2018-03-29 21:15:07,783 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.03 09:15:06" (2/3) ... [2018-03-29 21:15:07,783 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@57501446 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 29.03 09:15:07, skipping insertion in model container [2018-03-29 21:15:07,784 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 29.03 09:15:07" (3/3) ... [2018-03-29 21:15:07,785 INFO L107 eAbstractionObserver]: Analyzing ICFG 960521-1_1_true-valid-memsafety.i [2018-03-29 21:15:07,792 INFO L131 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2018-03-29 21:15:07,799 INFO L143 ceAbstractionStarter]: Appying trace abstraction to program that has 19 error locations. [2018-03-29 21:15:07,856 INFO L128 ementStrategyFactory]: Using default assertion order modulation [2018-03-29 21:15:07,857 INFO L369 AbstractCegarLoop]: Interprodecural is true [2018-03-29 21:15:07,857 INFO L370 AbstractCegarLoop]: Hoare is true [2018-03-29 21:15:07,857 INFO L371 AbstractCegarLoop]: Compute interpolants for FPandBP [2018-03-29 21:15:07,857 INFO L372 AbstractCegarLoop]: Backedges is TWOTRACK [2018-03-29 21:15:07,857 INFO L373 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2018-03-29 21:15:07,857 INFO L374 AbstractCegarLoop]: Difference is false [2018-03-29 21:15:07,857 INFO L375 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2018-03-29 21:15:07,857 INFO L380 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2018-03-29 21:15:07,858 INFO L87 2NestedWordAutomaton]: Mode: main mode - execution starts in main procedure [2018-03-29 21:15:07,874 INFO L276 IsEmpty]: Start isEmpty. Operand 87 states. [2018-03-29 21:15:07,879 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 19 [2018-03-29 21:15:07,879 INFO L347 BasicCegarLoop]: Found error trace [2018-03-29 21:15:07,880 INFO L355 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-03-29 21:15:07,880 INFO L408 AbstractCegarLoop]: === Iteration 1 === [mainErr5RequiresViolation, mainErr1RequiresViolation, mainErr6AssertViolationMEMORY_FREE, mainErr13AssertViolationMEMORY_FREE, mainErr10AssertViolationMEMORY_FREE, mainErr11AssertViolationMEMORY_FREE, mainErr0RequiresViolation, mainErr14EnsuresViolationMEMORY_LEAK, mainErr3RequiresViolation, mainErr7AssertViolationMEMORY_FREE, mainErr9AssertViolationMEMORY_FREE, mainErr2RequiresViolation, mainErr4RequiresViolation, mainErr8AssertViolationMEMORY_FREE, mainErr12AssertViolationMEMORY_FREE, __U_MULTI_f___________true_valid_memsafety_i__fooErr1RequiresViolation, __U_MULTI_f___________true_valid_memsafety_i__fooErr3RequiresViolation, __U_MULTI_f___________true_valid_memsafety_i__fooErr2RequiresViolation, __U_MULTI_f___________true_valid_memsafety_i__fooErr0RequiresViolation]=== [2018-03-29 21:15:07,884 INFO L82 PathProgramCache]: Analyzing trace with hash 1281560952, 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 [2018-03-29 21:15:07,896 INFO L68 tionRefinementEngine]: Using refinement strategy FixedRefinementStrategy [2018-03-29 21:15:07,967 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-03-29 21:15:07,977 INFO L270 TraceCheckSpWp]: Computing forward predicates... [2018-03-29 21:15:07,998 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-03-29 21:15:07,999 INFO L314 TraceCheckSpWp]: Computing backward predicates... [2018-03-29 21:15:08,016 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-03-29 21:15:08,040 INFO L320 seRefinementStrategy]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2018-03-29 21:15:08,040 INFO L335 seRefinementStrategy]: Number of different interpolants: perfect sequences [2, 2] imperfect sequences [] total 2 [2018-03-29 21:15:08,041 INFO L442 AbstractCegarLoop]: Interpolant automaton has 2 states [2018-03-29 21:15:08,051 INFO L132 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2018-03-29 21:15:08,052 INFO L133 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2018-03-29 21:15:08,053 INFO L87 Difference]: Start difference. First operand 87 states. Second operand 2 states. [2018-03-29 21:15:08,076 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-03-29 21:15:08,077 INFO L93 Difference]: Finished difference Result 156 states and 167 transitions. [2018-03-29 21:15:08,077 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2018-03-29 21:15:08,078 INFO L78 Accepts]: Start accepts. Automaton has 2 states. Word has length 18 [2018-03-29 21:15:08,079 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-03-29 21:15:08,088 INFO L225 Difference]: With dead ends: 156 [2018-03-29 21:15:08,089 INFO L226 Difference]: Without dead ends: 84 [2018-03-29 21:15:08,093 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 [2018-03-29 21:15:08,106 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 84 states. [2018-03-29 21:15:08,124 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 84 to 84. [2018-03-29 21:15:08,125 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 84 states. [2018-03-29 21:15:08,127 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 84 states to 84 states and 87 transitions. [2018-03-29 21:15:08,129 INFO L78 Accepts]: Start accepts. Automaton has 84 states and 87 transitions. Word has length 18 [2018-03-29 21:15:08,129 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-03-29 21:15:08,129 INFO L459 AbstractCegarLoop]: Abstraction has 84 states and 87 transitions. [2018-03-29 21:15:08,129 INFO L460 AbstractCegarLoop]: Interpolant automaton has 2 states. [2018-03-29 21:15:08,130 INFO L276 IsEmpty]: Start isEmpty. Operand 84 states and 87 transitions. [2018-03-29 21:15:08,130 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 22 [2018-03-29 21:15:08,130 INFO L347 BasicCegarLoop]: Found error trace [2018-03-29 21:15:08,131 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] [2018-03-29 21:15:08,131 INFO L408 AbstractCegarLoop]: === Iteration 2 === [mainErr5RequiresViolation, mainErr1RequiresViolation, mainErr6AssertViolationMEMORY_FREE, mainErr13AssertViolationMEMORY_FREE, mainErr10AssertViolationMEMORY_FREE, mainErr11AssertViolationMEMORY_FREE, mainErr0RequiresViolation, mainErr14EnsuresViolationMEMORY_LEAK, mainErr3RequiresViolation, mainErr7AssertViolationMEMORY_FREE, mainErr9AssertViolationMEMORY_FREE, mainErr2RequiresViolation, mainErr4RequiresViolation, mainErr8AssertViolationMEMORY_FREE, mainErr12AssertViolationMEMORY_FREE, __U_MULTI_f___________true_valid_memsafety_i__fooErr1RequiresViolation, __U_MULTI_f___________true_valid_memsafety_i__fooErr3RequiresViolation, __U_MULTI_f___________true_valid_memsafety_i__fooErr2RequiresViolation, __U_MULTI_f___________true_valid_memsafety_i__fooErr0RequiresViolation]=== [2018-03-29 21:15:08,131 INFO L82 PathProgramCache]: Analyzing trace with hash 1181244051, 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 [2018-03-29 21:15:08,137 INFO L68 tionRefinementEngine]: Using refinement strategy FixedRefinementStrategy [2018-03-29 21:15:08,166 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-03-29 21:15:08,169 INFO L270 TraceCheckSpWp]: Computing forward predicates... [2018-03-29 21:15:08,209 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 [2018-03-29 21:15:08,212 INFO L267 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2018-03-29 21:15:08,214 INFO L267 ElimStorePlain]: Start of recursive call 1: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-03-29 21:15:08,215 INFO L202 ElimStorePlain]: Needed 2 recursive calls to eliminate 1 variables, input treesize:6, output treesize:5 [2018-03-29 21:15:08,237 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-03-29 21:15:08,237 INFO L314 TraceCheckSpWp]: Computing backward predicates... [2018-03-29 21:15:08,247 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-03-29 21:15:08,284 INFO L320 seRefinementStrategy]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2018-03-29 21:15:08,284 INFO L335 seRefinementStrategy]: Number of different interpolants: perfect sequences [4, 4] imperfect sequences [] total 4 [2018-03-29 21:15:08,285 INFO L442 AbstractCegarLoop]: Interpolant automaton has 5 states [2018-03-29 21:15:08,285 INFO L132 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2018-03-29 21:15:08,286 INFO L133 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2018-03-29 21:15:08,286 INFO L87 Difference]: Start difference. First operand 84 states and 87 transitions. Second operand 5 states. [2018-03-29 21:15:08,408 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-03-29 21:15:08,408 INFO L93 Difference]: Finished difference Result 84 states and 87 transitions. [2018-03-29 21:15:08,409 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2018-03-29 21:15:08,409 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 21 [2018-03-29 21:15:08,409 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-03-29 21:15:08,410 INFO L225 Difference]: With dead ends: 84 [2018-03-29 21:15:08,411 INFO L226 Difference]: Without dead ends: 80 [2018-03-29 21:15:08,412 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 [2018-03-29 21:15:08,412 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 80 states. [2018-03-29 21:15:08,419 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 80 to 80. [2018-03-29 21:15:08,419 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 80 states. [2018-03-29 21:15:08,421 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 80 states to 80 states and 83 transitions. [2018-03-29 21:15:08,421 INFO L78 Accepts]: Start accepts. Automaton has 80 states and 83 transitions. Word has length 21 [2018-03-29 21:15:08,421 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-03-29 21:15:08,422 INFO L459 AbstractCegarLoop]: Abstraction has 80 states and 83 transitions. [2018-03-29 21:15:08,422 INFO L460 AbstractCegarLoop]: Interpolant automaton has 5 states. [2018-03-29 21:15:08,422 INFO L276 IsEmpty]: Start isEmpty. Operand 80 states and 83 transitions. [2018-03-29 21:15:08,422 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 22 [2018-03-29 21:15:08,423 INFO L347 BasicCegarLoop]: Found error trace [2018-03-29 21:15:08,423 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] [2018-03-29 21:15:08,423 INFO L408 AbstractCegarLoop]: === Iteration 3 === [mainErr5RequiresViolation, mainErr1RequiresViolation, mainErr6AssertViolationMEMORY_FREE, mainErr13AssertViolationMEMORY_FREE, mainErr10AssertViolationMEMORY_FREE, mainErr11AssertViolationMEMORY_FREE, mainErr0RequiresViolation, mainErr14EnsuresViolationMEMORY_LEAK, mainErr3RequiresViolation, mainErr7AssertViolationMEMORY_FREE, mainErr9AssertViolationMEMORY_FREE, mainErr2RequiresViolation, mainErr4RequiresViolation, mainErr8AssertViolationMEMORY_FREE, mainErr12AssertViolationMEMORY_FREE, __U_MULTI_f___________true_valid_memsafety_i__fooErr1RequiresViolation, __U_MULTI_f___________true_valid_memsafety_i__fooErr3RequiresViolation, __U_MULTI_f___________true_valid_memsafety_i__fooErr2RequiresViolation, __U_MULTI_f___________true_valid_memsafety_i__fooErr0RequiresViolation]=== [2018-03-29 21:15:08,423 INFO L82 PathProgramCache]: Analyzing trace with hash 1181244052, 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 [2018-03-29 21:15:08,433 INFO L68 tionRefinementEngine]: Using refinement strategy FixedRefinementStrategy [2018-03-29 21:15:08,456 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-03-29 21:15:08,458 INFO L270 TraceCheckSpWp]: Computing forward predicates... [2018-03-29 21:15:08,503 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 [2018-03-29 21:15:08,503 INFO L267 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2018-03-29 21:15:08,520 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. [2018-03-29 21:15:08,521 INFO L202 ElimStorePlain]: Needed 2 recursive calls to eliminate 2 variables, input treesize:15, output treesize:14 [2018-03-29 21:15:08,594 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-03-29 21:15:08,594 INFO L314 TraceCheckSpWp]: Computing backward predicates... [2018-03-29 21:15:08,680 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-03-29 21:15:08,715 INFO L320 seRefinementStrategy]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2018-03-29 21:15:08,716 INFO L335 seRefinementStrategy]: Number of different interpolants: perfect sequences [5, 5] imperfect sequences [] total 8 [2018-03-29 21:15:08,716 INFO L442 AbstractCegarLoop]: Interpolant automaton has 9 states [2018-03-29 21:15:08,716 INFO L132 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2018-03-29 21:15:08,717 INFO L133 InterpolantAutomaton]: CoverageRelationStatistics Valid=18, Invalid=54, Unknown=0, NotChecked=0, Total=72 [2018-03-29 21:15:08,717 INFO L87 Difference]: Start difference. First operand 80 states and 83 transitions. Second operand 9 states. [2018-03-29 21:15:09,087 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-03-29 21:15:09,087 INFO L93 Difference]: Finished difference Result 149 states and 155 transitions. [2018-03-29 21:15:09,088 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2018-03-29 21:15:09,088 INFO L78 Accepts]: Start accepts. Automaton has 9 states. Word has length 21 [2018-03-29 21:15:09,088 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-03-29 21:15:09,089 INFO L225 Difference]: With dead ends: 149 [2018-03-29 21:15:09,089 INFO L226 Difference]: Without dead ends: 148 [2018-03-29 21:15:09,089 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 [2018-03-29 21:15:09,090 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 148 states. [2018-03-29 21:15:09,097 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 148 to 91. [2018-03-29 21:15:09,097 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 91 states. [2018-03-29 21:15:09,099 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 91 states to 91 states and 95 transitions. [2018-03-29 21:15:09,099 INFO L78 Accepts]: Start accepts. Automaton has 91 states and 95 transitions. Word has length 21 [2018-03-29 21:15:09,100 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-03-29 21:15:09,100 INFO L459 AbstractCegarLoop]: Abstraction has 91 states and 95 transitions. [2018-03-29 21:15:09,100 INFO L460 AbstractCegarLoop]: Interpolant automaton has 9 states. [2018-03-29 21:15:09,100 INFO L276 IsEmpty]: Start isEmpty. Operand 91 states and 95 transitions. [2018-03-29 21:15:09,101 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 29 [2018-03-29 21:15:09,101 INFO L347 BasicCegarLoop]: Found error trace [2018-03-29 21:15:09,101 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] [2018-03-29 21:15:09,101 INFO L408 AbstractCegarLoop]: === Iteration 4 === [mainErr5RequiresViolation, mainErr1RequiresViolation, mainErr6AssertViolationMEMORY_FREE, mainErr13AssertViolationMEMORY_FREE, mainErr10AssertViolationMEMORY_FREE, mainErr11AssertViolationMEMORY_FREE, mainErr0RequiresViolation, mainErr14EnsuresViolationMEMORY_LEAK, mainErr3RequiresViolation, mainErr7AssertViolationMEMORY_FREE, mainErr9AssertViolationMEMORY_FREE, mainErr2RequiresViolation, mainErr4RequiresViolation, mainErr8AssertViolationMEMORY_FREE, mainErr12AssertViolationMEMORY_FREE, __U_MULTI_f___________true_valid_memsafety_i__fooErr1RequiresViolation, __U_MULTI_f___________true_valid_memsafety_i__fooErr3RequiresViolation, __U_MULTI_f___________true_valid_memsafety_i__fooErr2RequiresViolation, __U_MULTI_f___________true_valid_memsafety_i__fooErr0RequiresViolation]=== [2018-03-29 21:15:09,101 INFO L82 PathProgramCache]: Analyzing trace with hash 1417984840, 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 [2018-03-29 21:15:09,111 INFO L68 tionRefinementEngine]: Using refinement strategy FixedRefinementStrategy [2018-03-29 21:15:09,138 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-03-29 21:15:09,141 INFO L270 TraceCheckSpWp]: Computing forward predicates... [2018-03-29 21:15:09,145 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 [2018-03-29 21:15:09,146 INFO L267 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2018-03-29 21:15:09,148 INFO L267 ElimStorePlain]: Start of recursive call 1: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-03-29 21:15:09,148 INFO L202 ElimStorePlain]: Needed 2 recursive calls to eliminate 1 variables, input treesize:6, output treesize:5 [2018-03-29 21:15:09,181 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 [2018-03-29 21:15:09,182 INFO L267 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2018-03-29 21:15:09,191 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. [2018-03-29 21:15:09,192 INFO L202 ElimStorePlain]: Needed 2 recursive calls to eliminate 2 variables, input treesize:12, output treesize:11 [2018-03-29 21:15:09,212 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-03-29 21:15:09,213 INFO L314 TraceCheckSpWp]: Computing backward predicates... [2018-03-29 21:15:09,250 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-03-29 21:15:09,274 INFO L320 seRefinementStrategy]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2018-03-29 21:15:09,274 INFO L335 seRefinementStrategy]: Number of different interpolants: perfect sequences [3, 3] imperfect sequences [] total 3 [2018-03-29 21:15:09,275 INFO L442 AbstractCegarLoop]: Interpolant automaton has 4 states [2018-03-29 21:15:09,275 INFO L132 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2018-03-29 21:15:09,275 INFO L133 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2018-03-29 21:15:09,275 INFO L87 Difference]: Start difference. First operand 91 states and 95 transitions. Second operand 4 states. [2018-03-29 21:15:09,350 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-03-29 21:15:09,350 INFO L93 Difference]: Finished difference Result 91 states and 95 transitions. [2018-03-29 21:15:09,350 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2018-03-29 21:15:09,350 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 28 [2018-03-29 21:15:09,351 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-03-29 21:15:09,352 INFO L225 Difference]: With dead ends: 91 [2018-03-29 21:15:09,352 INFO L226 Difference]: Without dead ends: 88 [2018-03-29 21:15:09,352 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 [2018-03-29 21:15:09,353 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 88 states. [2018-03-29 21:15:09,360 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 88 to 88. [2018-03-29 21:15:09,360 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 88 states. [2018-03-29 21:15:09,362 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 88 states to 88 states and 92 transitions. [2018-03-29 21:15:09,362 INFO L78 Accepts]: Start accepts. Automaton has 88 states and 92 transitions. Word has length 28 [2018-03-29 21:15:09,362 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-03-29 21:15:09,362 INFO L459 AbstractCegarLoop]: Abstraction has 88 states and 92 transitions. [2018-03-29 21:15:09,362 INFO L460 AbstractCegarLoop]: Interpolant automaton has 4 states. [2018-03-29 21:15:09,363 INFO L276 IsEmpty]: Start isEmpty. Operand 88 states and 92 transitions. [2018-03-29 21:15:09,364 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 29 [2018-03-29 21:15:09,364 INFO L347 BasicCegarLoop]: Found error trace [2018-03-29 21:15:09,364 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] [2018-03-29 21:15:09,364 INFO L408 AbstractCegarLoop]: === Iteration 5 === [mainErr5RequiresViolation, mainErr1RequiresViolation, mainErr6AssertViolationMEMORY_FREE, mainErr13AssertViolationMEMORY_FREE, mainErr10AssertViolationMEMORY_FREE, mainErr11AssertViolationMEMORY_FREE, mainErr0RequiresViolation, mainErr14EnsuresViolationMEMORY_LEAK, mainErr3RequiresViolation, mainErr7AssertViolationMEMORY_FREE, mainErr9AssertViolationMEMORY_FREE, mainErr2RequiresViolation, mainErr4RequiresViolation, mainErr8AssertViolationMEMORY_FREE, mainErr12AssertViolationMEMORY_FREE, __U_MULTI_f___________true_valid_memsafety_i__fooErr1RequiresViolation, __U_MULTI_f___________true_valid_memsafety_i__fooErr3RequiresViolation, __U_MULTI_f___________true_valid_memsafety_i__fooErr2RequiresViolation, __U_MULTI_f___________true_valid_memsafety_i__fooErr0RequiresViolation]=== [2018-03-29 21:15:09,364 INFO L82 PathProgramCache]: Analyzing trace with hash 1417984841, 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 [2018-03-29 21:15:09,382 INFO L68 tionRefinementEngine]: Using refinement strategy FixedRefinementStrategy [2018-03-29 21:15:09,408 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-03-29 21:15:09,411 INFO L270 TraceCheckSpWp]: Computing forward predicates... [2018-03-29 21:15:09,431 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 [2018-03-29 21:15:09,432 INFO L267 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2018-03-29 21:15:09,443 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 [2018-03-29 21:15:09,443 INFO L267 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 1 xjuncts. [2018-03-29 21:15:09,451 INFO L267 ElimStorePlain]: Start of recursive call 1: 2 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-03-29 21:15:09,451 INFO L202 ElimStorePlain]: Needed 3 recursive calls to eliminate 2 variables, input treesize:21, output treesize:19 [2018-03-29 21:15:09,499 INFO L700 Elim1Store]: detected not equals via solver [2018-03-29 21:15:09,500 INFO L700 Elim1Store]: detected not equals via solver [2018-03-29 21:15:09,501 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 [2018-03-29 21:15:09,502 INFO L267 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2018-03-29 21:15:09,511 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 [2018-03-29 21:15:09,511 INFO L267 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 1 xjuncts. [2018-03-29 21:15:09,519 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. [2018-03-29 21:15:09,519 INFO L202 ElimStorePlain]: Needed 3 recursive calls to eliminate 3 variables, input treesize:32, output treesize:25 [2018-03-29 21:15:09,644 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-03-29 21:15:09,645 INFO L314 TraceCheckSpWp]: Computing backward predicates... [2018-03-29 21:15:09,733 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 [2018-03-29 21:15:09,733 INFO L267 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2018-03-29 21:15:09,737 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 [2018-03-29 21:15:09,748 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 8 treesize of output 1 [2018-03-29 21:15:09,748 INFO L267 ElimStorePlain]: Start of recursive call 4: End of recursive call: and 1 xjuncts. [2018-03-29 21:15:09,749 INFO L267 ElimStorePlain]: Start of recursive call 3: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-03-29 21:15:09,751 INFO L267 ElimStorePlain]: Start of recursive call 1: 2 dim-0 vars, 2 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-03-29 21:15:09,752 INFO L202 ElimStorePlain]: Needed 4 recursive calls to eliminate 4 variables, input treesize:25, output treesize:5 [2018-03-29 21:15:09,757 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-03-29 21:15:09,778 INFO L320 seRefinementStrategy]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2018-03-29 21:15:09,778 INFO L335 seRefinementStrategy]: Number of different interpolants: perfect sequences [8, 6] imperfect sequences [] total 12 [2018-03-29 21:15:09,779 INFO L442 AbstractCegarLoop]: Interpolant automaton has 13 states [2018-03-29 21:15:09,779 INFO L132 InterpolantAutomaton]: Constructing interpolant automaton starting with 13 interpolants. [2018-03-29 21:15:09,779 INFO L133 InterpolantAutomaton]: CoverageRelationStatistics Valid=36, Invalid=120, Unknown=0, NotChecked=0, Total=156 [2018-03-29 21:15:09,779 INFO L87 Difference]: Start difference. First operand 88 states and 92 transitions. Second operand 13 states. [2018-03-29 21:15:12,203 WARN L151 SmtUtils]: Spent 101ms on a formula simplification. DAG size of input: 47 DAG size of output 40 [2018-03-29 21:15:12,286 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-03-29 21:15:12,286 INFO L93 Difference]: Finished difference Result 194 states and 205 transitions. [2018-03-29 21:15:12,286 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2018-03-29 21:15:12,286 INFO L78 Accepts]: Start accepts. Automaton has 13 states. Word has length 28 [2018-03-29 21:15:12,286 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-03-29 21:15:12,289 INFO L225 Difference]: With dead ends: 194 [2018-03-29 21:15:12,289 INFO L226 Difference]: Without dead ends: 153 [2018-03-29 21:15:12,290 INFO L567 BasicCegarLoop]: 0 DeclaredPredicates, 63 GetRequests, 43 SyntacticMatches, 1 SemanticMatches, 19 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 58 ImplicationChecksByTransitivity, 2.2s TimeCoverageRelationStatistics Valid=117, Invalid=301, Unknown=2, NotChecked=0, Total=420 [2018-03-29 21:15:12,290 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 153 states. [2018-03-29 21:15:12,299 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 153 to 119. [2018-03-29 21:15:12,299 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 119 states. [2018-03-29 21:15:12,300 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 119 states to 119 states and 130 transitions. [2018-03-29 21:15:12,301 INFO L78 Accepts]: Start accepts. Automaton has 119 states and 130 transitions. Word has length 28 [2018-03-29 21:15:12,301 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-03-29 21:15:12,301 INFO L459 AbstractCegarLoop]: Abstraction has 119 states and 130 transitions. [2018-03-29 21:15:12,301 INFO L460 AbstractCegarLoop]: Interpolant automaton has 13 states. [2018-03-29 21:15:12,301 INFO L276 IsEmpty]: Start isEmpty. Operand 119 states and 130 transitions. [2018-03-29 21:15:12,302 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 29 [2018-03-29 21:15:12,302 INFO L347 BasicCegarLoop]: Found error trace [2018-03-29 21:15:12,302 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] [2018-03-29 21:15:12,302 INFO L408 AbstractCegarLoop]: === Iteration 6 === [mainErr5RequiresViolation, mainErr1RequiresViolation, mainErr6AssertViolationMEMORY_FREE, mainErr13AssertViolationMEMORY_FREE, mainErr10AssertViolationMEMORY_FREE, mainErr11AssertViolationMEMORY_FREE, mainErr0RequiresViolation, mainErr14EnsuresViolationMEMORY_LEAK, mainErr3RequiresViolation, mainErr7AssertViolationMEMORY_FREE, mainErr9AssertViolationMEMORY_FREE, mainErr2RequiresViolation, mainErr4RequiresViolation, mainErr8AssertViolationMEMORY_FREE, mainErr12AssertViolationMEMORY_FREE, __U_MULTI_f___________true_valid_memsafety_i__fooErr1RequiresViolation, __U_MULTI_f___________true_valid_memsafety_i__fooErr3RequiresViolation, __U_MULTI_f___________true_valid_memsafety_i__fooErr2RequiresViolation, __U_MULTI_f___________true_valid_memsafety_i__fooErr0RequiresViolation]=== [2018-03-29 21:15:12,302 INFO L82 PathProgramCache]: Analyzing trace with hash -922220228, 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 [2018-03-29 21:15:12,308 INFO L68 tionRefinementEngine]: Using refinement strategy FixedRefinementStrategy [2018-03-29 21:15:12,326 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-03-29 21:15:12,329 INFO L270 TraceCheckSpWp]: Computing forward predicates... [2018-03-29 21:15:12,350 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 [2018-03-29 21:15:12,351 INFO L267 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2018-03-29 21:15:12,356 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. [2018-03-29 21:15:12,356 INFO L202 ElimStorePlain]: Needed 2 recursive calls to eliminate 2 variables, input treesize:15, output treesize:14 [2018-03-29 21:15:12,390 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 3 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-03-29 21:15:12,391 INFO L314 TraceCheckSpWp]: Computing backward predicates... [2018-03-29 21:15:12,544 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 3 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-03-29 21:15:12,577 INFO L320 seRefinementStrategy]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2018-03-29 21:15:12,577 INFO L335 seRefinementStrategy]: Number of different interpolants: perfect sequences [7, 7] imperfect sequences [] total 12 [2018-03-29 21:15:12,577 INFO L442 AbstractCegarLoop]: Interpolant automaton has 13 states [2018-03-29 21:15:12,577 INFO L132 InterpolantAutomaton]: Constructing interpolant automaton starting with 13 interpolants. [2018-03-29 21:15:12,578 INFO L133 InterpolantAutomaton]: CoverageRelationStatistics Valid=30, Invalid=126, Unknown=0, NotChecked=0, Total=156 [2018-03-29 21:15:12,578 INFO L87 Difference]: Start difference. First operand 119 states and 130 transitions. Second operand 13 states. [2018-03-29 21:15:13,268 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-03-29 21:15:13,268 INFO L93 Difference]: Finished difference Result 143 states and 149 transitions. [2018-03-29 21:15:13,268 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 17 states. [2018-03-29 21:15:13,268 INFO L78 Accepts]: Start accepts. Automaton has 13 states. Word has length 28 [2018-03-29 21:15:13,268 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-03-29 21:15:13,269 INFO L225 Difference]: With dead ends: 143 [2018-03-29 21:15:13,269 INFO L226 Difference]: Without dead ends: 142 [2018-03-29 21:15:13,270 INFO L567 BasicCegarLoop]: 0 DeclaredPredicates, 67 GetRequests, 43 SyntacticMatches, 1 SemanticMatches, 23 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 67 ImplicationChecksByTransitivity, 0.4s TimeCoverageRelationStatistics Valid=150, Invalid=450, Unknown=0, NotChecked=0, Total=600 [2018-03-29 21:15:13,270 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 142 states. [2018-03-29 21:15:13,280 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 142 to 118. [2018-03-29 21:15:13,280 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 118 states. [2018-03-29 21:15:13,281 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 118 states to 118 states and 129 transitions. [2018-03-29 21:15:13,282 INFO L78 Accepts]: Start accepts. Automaton has 118 states and 129 transitions. Word has length 28 [2018-03-29 21:15:13,282 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-03-29 21:15:13,282 INFO L459 AbstractCegarLoop]: Abstraction has 118 states and 129 transitions. [2018-03-29 21:15:13,282 INFO L460 AbstractCegarLoop]: Interpolant automaton has 13 states. [2018-03-29 21:15:13,282 INFO L276 IsEmpty]: Start isEmpty. Operand 118 states and 129 transitions. [2018-03-29 21:15:13,283 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 35 [2018-03-29 21:15:13,283 INFO L347 BasicCegarLoop]: Found error trace [2018-03-29 21:15:13,283 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] [2018-03-29 21:15:13,283 INFO L408 AbstractCegarLoop]: === Iteration 7 === [mainErr5RequiresViolation, mainErr1RequiresViolation, mainErr6AssertViolationMEMORY_FREE, mainErr13AssertViolationMEMORY_FREE, mainErr10AssertViolationMEMORY_FREE, mainErr11AssertViolationMEMORY_FREE, mainErr0RequiresViolation, mainErr14EnsuresViolationMEMORY_LEAK, mainErr3RequiresViolation, mainErr7AssertViolationMEMORY_FREE, mainErr9AssertViolationMEMORY_FREE, mainErr2RequiresViolation, mainErr4RequiresViolation, mainErr8AssertViolationMEMORY_FREE, mainErr12AssertViolationMEMORY_FREE, __U_MULTI_f___________true_valid_memsafety_i__fooErr1RequiresViolation, __U_MULTI_f___________true_valid_memsafety_i__fooErr3RequiresViolation, __U_MULTI_f___________true_valid_memsafety_i__fooErr2RequiresViolation, __U_MULTI_f___________true_valid_memsafety_i__fooErr0RequiresViolation]=== [2018-03-29 21:15:13,284 INFO L82 PathProgramCache]: Analyzing trace with hash -718741057, 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 [2018-03-29 21:15:13,292 INFO L68 tionRefinementEngine]: Using refinement strategy FixedRefinementStrategy [2018-03-29 21:15:13,314 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-03-29 21:15:13,317 INFO L270 TraceCheckSpWp]: Computing forward predicates... [2018-03-29 21:15:13,345 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 3 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-03-29 21:15:13,345 INFO L314 TraceCheckSpWp]: Computing backward predicates... [2018-03-29 21:15:13,384 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 3 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-03-29 21:15:13,413 INFO L320 seRefinementStrategy]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2018-03-29 21:15:13,413 INFO L335 seRefinementStrategy]: Number of different interpolants: perfect sequences [6, 6] imperfect sequences [] total 9 [2018-03-29 21:15:13,413 INFO L442 AbstractCegarLoop]: Interpolant automaton has 9 states [2018-03-29 21:15:13,414 INFO L132 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2018-03-29 21:15:13,414 INFO L133 InterpolantAutomaton]: CoverageRelationStatistics Valid=24, Invalid=48, Unknown=0, NotChecked=0, Total=72 [2018-03-29 21:15:13,414 INFO L87 Difference]: Start difference. First operand 118 states and 129 transitions. Second operand 9 states. [2018-03-29 21:15:13,746 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-03-29 21:15:13,746 INFO L93 Difference]: Finished difference Result 180 states and 188 transitions. [2018-03-29 21:15:13,747 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2018-03-29 21:15:13,747 INFO L78 Accepts]: Start accepts. Automaton has 9 states. Word has length 34 [2018-03-29 21:15:13,747 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-03-29 21:15:13,748 INFO L225 Difference]: With dead ends: 180 [2018-03-29 21:15:13,749 INFO L226 Difference]: Without dead ends: 135 [2018-03-29 21:15:13,749 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 [2018-03-29 21:15:13,750 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 135 states. [2018-03-29 21:15:13,762 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 135 to 113. [2018-03-29 21:15:13,762 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 113 states. [2018-03-29 21:15:13,763 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 113 states to 113 states and 120 transitions. [2018-03-29 21:15:13,764 INFO L78 Accepts]: Start accepts. Automaton has 113 states and 120 transitions. Word has length 34 [2018-03-29 21:15:13,764 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-03-29 21:15:13,764 INFO L459 AbstractCegarLoop]: Abstraction has 113 states and 120 transitions. [2018-03-29 21:15:13,764 INFO L460 AbstractCegarLoop]: Interpolant automaton has 9 states. [2018-03-29 21:15:13,765 INFO L276 IsEmpty]: Start isEmpty. Operand 113 states and 120 transitions. [2018-03-29 21:15:13,766 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 36 [2018-03-29 21:15:13,766 INFO L347 BasicCegarLoop]: Found error trace [2018-03-29 21:15:13,766 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] [2018-03-29 21:15:13,766 INFO L408 AbstractCegarLoop]: === Iteration 8 === [mainErr5RequiresViolation, mainErr1RequiresViolation, mainErr6AssertViolationMEMORY_FREE, mainErr13AssertViolationMEMORY_FREE, mainErr10AssertViolationMEMORY_FREE, mainErr11AssertViolationMEMORY_FREE, mainErr0RequiresViolation, mainErr14EnsuresViolationMEMORY_LEAK, mainErr3RequiresViolation, mainErr7AssertViolationMEMORY_FREE, mainErr9AssertViolationMEMORY_FREE, mainErr2RequiresViolation, mainErr4RequiresViolation, mainErr8AssertViolationMEMORY_FREE, mainErr12AssertViolationMEMORY_FREE, __U_MULTI_f___________true_valid_memsafety_i__fooErr1RequiresViolation, __U_MULTI_f___________true_valid_memsafety_i__fooErr3RequiresViolation, __U_MULTI_f___________true_valid_memsafety_i__fooErr2RequiresViolation, __U_MULTI_f___________true_valid_memsafety_i__fooErr0RequiresViolation]=== [2018-03-29 21:15:13,767 INFO L82 PathProgramCache]: Analyzing trace with hash -1454719071, 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 [2018-03-29 21:15:13,784 INFO L68 tionRefinementEngine]: Using refinement strategy FixedRefinementStrategy [2018-03-29 21:15:13,809 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-03-29 21:15:13,812 INFO L270 TraceCheckSpWp]: Computing forward predicates... [2018-03-29 21:15:13,865 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 [2018-03-29 21:15:13,866 INFO L267 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2018-03-29 21:15:13,873 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 [2018-03-29 21:15:13,873 INFO L267 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 1 xjuncts. [2018-03-29 21:15:13,879 INFO L267 ElimStorePlain]: Start of recursive call 1: 2 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-03-29 21:15:13,879 INFO L202 ElimStorePlain]: Needed 3 recursive calls to eliminate 2 variables, input treesize:21, output treesize:19 [2018-03-29 21:15:13,917 INFO L700 Elim1Store]: detected not equals via solver [2018-03-29 21:15:13,918 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 [2018-03-29 21:15:13,919 INFO L267 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2018-03-29 21:15:13,969 INFO L700 Elim1Store]: detected not equals via solver [2018-03-29 21:15:13,971 INFO L700 Elim1Store]: detected not equals via solver [2018-03-29 21:15:13,972 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 [2018-03-29 21:15:13,973 INFO L267 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 1 xjuncts. [2018-03-29 21:15:13,980 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. [2018-03-29 21:15:13,980 INFO L202 ElimStorePlain]: Needed 3 recursive calls to eliminate 3 variables, input treesize:32, output treesize:25 [2018-03-29 21:15:14,172 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 3 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-03-29 21:15:14,172 INFO L314 TraceCheckSpWp]: Computing backward predicates... [2018-03-29 21:15:14,314 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 [2018-03-29 21:15:14,315 INFO L267 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2018-03-29 21:15:14,333 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 [2018-03-29 21:15:14,346 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 [2018-03-29 21:15:14,346 INFO L267 ElimStorePlain]: Start of recursive call 4: End of recursive call: and 1 xjuncts. [2018-03-29 21:15:14,348 INFO L267 ElimStorePlain]: Start of recursive call 3: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-03-29 21:15:14,350 INFO L267 ElimStorePlain]: Start of recursive call 1: 2 dim-0 vars, 2 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-03-29 21:15:14,351 INFO L202 ElimStorePlain]: Needed 4 recursive calls to eliminate 4 variables, input treesize:25, output treesize:5 [2018-03-29 21:15:14,383 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 3 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-03-29 21:15:14,405 INFO L320 seRefinementStrategy]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2018-03-29 21:15:14,405 INFO L335 seRefinementStrategy]: Number of different interpolants: perfect sequences [10, 8] imperfect sequences [] total 16 [2018-03-29 21:15:14,406 INFO L442 AbstractCegarLoop]: Interpolant automaton has 17 states [2018-03-29 21:15:14,406 INFO L132 InterpolantAutomaton]: Constructing interpolant automaton starting with 17 interpolants. [2018-03-29 21:15:14,406 INFO L133 InterpolantAutomaton]: CoverageRelationStatistics Valid=52, Invalid=220, Unknown=0, NotChecked=0, Total=272 [2018-03-29 21:15:14,406 INFO L87 Difference]: Start difference. First operand 113 states and 120 transitions. Second operand 17 states. [2018-03-29 21:15:15,400 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-03-29 21:15:15,400 INFO L93 Difference]: Finished difference Result 185 states and 194 transitions. [2018-03-29 21:15:15,400 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 22 states. [2018-03-29 21:15:15,400 INFO L78 Accepts]: Start accepts. Automaton has 17 states. Word has length 35 [2018-03-29 21:15:15,400 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-03-29 21:15:15,401 INFO L225 Difference]: With dead ends: 185 [2018-03-29 21:15:15,401 INFO L226 Difference]: Without dead ends: 144 [2018-03-29 21:15:15,402 INFO L567 BasicCegarLoop]: 0 DeclaredPredicates, 85 GetRequests, 53 SyntacticMatches, 1 SemanticMatches, 31 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 183 ImplicationChecksByTransitivity, 0.9s TimeCoverageRelationStatistics Valid=240, Invalid=816, Unknown=0, NotChecked=0, Total=1056 [2018-03-29 21:15:15,402 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 144 states. [2018-03-29 21:15:15,412 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 144 to 107. [2018-03-29 21:15:15,412 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 107 states. [2018-03-29 21:15:15,413 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 107 states to 107 states and 111 transitions. [2018-03-29 21:15:15,413 INFO L78 Accepts]: Start accepts. Automaton has 107 states and 111 transitions. Word has length 35 [2018-03-29 21:15:15,414 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-03-29 21:15:15,414 INFO L459 AbstractCegarLoop]: Abstraction has 107 states and 111 transitions. [2018-03-29 21:15:15,414 INFO L460 AbstractCegarLoop]: Interpolant automaton has 17 states. [2018-03-29 21:15:15,414 INFO L276 IsEmpty]: Start isEmpty. Operand 107 states and 111 transitions. [2018-03-29 21:15:15,415 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 40 [2018-03-29 21:15:15,415 INFO L347 BasicCegarLoop]: Found error trace [2018-03-29 21:15:15,415 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] [2018-03-29 21:15:15,415 INFO L408 AbstractCegarLoop]: === Iteration 9 === [mainErr5RequiresViolation, mainErr1RequiresViolation, mainErr6AssertViolationMEMORY_FREE, mainErr13AssertViolationMEMORY_FREE, mainErr10AssertViolationMEMORY_FREE, mainErr11AssertViolationMEMORY_FREE, mainErr0RequiresViolation, mainErr14EnsuresViolationMEMORY_LEAK, mainErr3RequiresViolation, mainErr7AssertViolationMEMORY_FREE, mainErr9AssertViolationMEMORY_FREE, mainErr2RequiresViolation, mainErr4RequiresViolation, mainErr8AssertViolationMEMORY_FREE, mainErr12AssertViolationMEMORY_FREE, __U_MULTI_f___________true_valid_memsafety_i__fooErr1RequiresViolation, __U_MULTI_f___________true_valid_memsafety_i__fooErr3RequiresViolation, __U_MULTI_f___________true_valid_memsafety_i__fooErr2RequiresViolation, __U_MULTI_f___________true_valid_memsafety_i__fooErr0RequiresViolation]=== [2018-03-29 21:15:15,416 INFO L82 PathProgramCache]: Analyzing trace with hash 24206100, 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 [2018-03-29 21:15:15,426 INFO L68 tionRefinementEngine]: Using refinement strategy FixedRefinementStrategy [2018-03-29 21:15:15,446 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-03-29 21:15:15,449 INFO L270 TraceCheckSpWp]: Computing forward predicates... [2018-03-29 21:15:15,457 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 [2018-03-29 21:15:15,457 INFO L267 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2018-03-29 21:15:15,461 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. [2018-03-29 21:15:15,462 INFO L202 ElimStorePlain]: Needed 2 recursive calls to eliminate 2 variables, input treesize:15, output treesize:14 [2018-03-29 21:15:15,532 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2018-03-29 21:15:15,532 INFO L314 TraceCheckSpWp]: Computing backward predicates... [2018-03-29 21:15:15,642 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2018-03-29 21:15:15,665 INFO L320 seRefinementStrategy]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2018-03-29 21:15:15,665 INFO L335 seRefinementStrategy]: Number of different interpolants: perfect sequences [7, 7] imperfect sequences [] total 12 [2018-03-29 21:15:15,665 INFO L442 AbstractCegarLoop]: Interpolant automaton has 13 states [2018-03-29 21:15:15,665 INFO L132 InterpolantAutomaton]: Constructing interpolant automaton starting with 13 interpolants. [2018-03-29 21:15:15,665 INFO L133 InterpolantAutomaton]: CoverageRelationStatistics Valid=30, Invalid=126, Unknown=0, NotChecked=0, Total=156 [2018-03-29 21:15:15,666 INFO L87 Difference]: Start difference. First operand 107 states and 111 transitions. Second operand 13 states. [2018-03-29 21:15:16,024 WARN L148 SmtUtils]: Spent 264ms on a formula simplification that was a NOOP. DAG size: 29 [2018-03-29 21:15:16,281 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-03-29 21:15:16,281 INFO L93 Difference]: Finished difference Result 138 states and 142 transitions. [2018-03-29 21:15:16,282 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2018-03-29 21:15:16,282 INFO L78 Accepts]: Start accepts. Automaton has 13 states. Word has length 39 [2018-03-29 21:15:16,282 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-03-29 21:15:16,283 INFO L225 Difference]: With dead ends: 138 [2018-03-29 21:15:16,283 INFO L226 Difference]: Without dead ends: 136 [2018-03-29 21:15:16,284 INFO L567 BasicCegarLoop]: 0 DeclaredPredicates, 84 GetRequests, 65 SyntacticMatches, 1 SemanticMatches, 18 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 23 ImplicationChecksByTransitivity, 0.5s TimeCoverageRelationStatistics Valid=95, Invalid=285, Unknown=0, NotChecked=0, Total=380 [2018-03-29 21:15:16,284 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 136 states. [2018-03-29 21:15:16,293 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 136 to 116. [2018-03-29 21:15:16,294 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 116 states. [2018-03-29 21:15:16,295 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 116 states to 116 states and 122 transitions. [2018-03-29 21:15:16,295 INFO L78 Accepts]: Start accepts. Automaton has 116 states and 122 transitions. Word has length 39 [2018-03-29 21:15:16,295 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-03-29 21:15:16,295 INFO L459 AbstractCegarLoop]: Abstraction has 116 states and 122 transitions. [2018-03-29 21:15:16,295 INFO L460 AbstractCegarLoop]: Interpolant automaton has 13 states. [2018-03-29 21:15:16,296 INFO L276 IsEmpty]: Start isEmpty. Operand 116 states and 122 transitions. [2018-03-29 21:15:16,297 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 41 [2018-03-29 21:15:16,297 INFO L347 BasicCegarLoop]: Found error trace [2018-03-29 21:15:16,297 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] [2018-03-29 21:15:16,297 INFO L408 AbstractCegarLoop]: === Iteration 10 === [mainErr5RequiresViolation, mainErr1RequiresViolation, mainErr6AssertViolationMEMORY_FREE, mainErr13AssertViolationMEMORY_FREE, mainErr10AssertViolationMEMORY_FREE, mainErr11AssertViolationMEMORY_FREE, mainErr0RequiresViolation, mainErr14EnsuresViolationMEMORY_LEAK, mainErr3RequiresViolation, mainErr7AssertViolationMEMORY_FREE, mainErr9AssertViolationMEMORY_FREE, mainErr2RequiresViolation, mainErr4RequiresViolation, mainErr8AssertViolationMEMORY_FREE, mainErr12AssertViolationMEMORY_FREE, __U_MULTI_f___________true_valid_memsafety_i__fooErr1RequiresViolation, __U_MULTI_f___________true_valid_memsafety_i__fooErr3RequiresViolation, __U_MULTI_f___________true_valid_memsafety_i__fooErr2RequiresViolation, __U_MULTI_f___________true_valid_memsafety_i__fooErr0RequiresViolation]=== [2018-03-29 21:15:16,298 INFO L82 PathProgramCache]: Analyzing trace with hash 750389122, 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 [2018-03-29 21:15:16,362 INFO L68 tionRefinementEngine]: Using refinement strategy FixedRefinementStrategy [2018-03-29 21:15:16,392 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-03-29 21:15:16,395 INFO L270 TraceCheckSpWp]: Computing forward predicates... [2018-03-29 21:15:16,430 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2018-03-29 21:15:16,430 INFO L314 TraceCheckSpWp]: Computing backward predicates... [2018-03-29 21:15:16,448 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2018-03-29 21:15:16,470 INFO L320 seRefinementStrategy]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2018-03-29 21:15:16,470 INFO L335 seRefinementStrategy]: Number of different interpolants: perfect sequences [3, 3] imperfect sequences [] total 4 [2018-03-29 21:15:16,470 INFO L442 AbstractCegarLoop]: Interpolant automaton has 5 states [2018-03-29 21:15:16,471 INFO L132 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2018-03-29 21:15:16,471 INFO L133 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2018-03-29 21:15:16,471 INFO L87 Difference]: Start difference. First operand 116 states and 122 transitions. Second operand 5 states. [2018-03-29 21:15:16,522 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-03-29 21:15:16,523 INFO L93 Difference]: Finished difference Result 136 states and 140 transitions. [2018-03-29 21:15:16,523 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2018-03-29 21:15:16,523 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 40 [2018-03-29 21:15:16,523 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-03-29 21:15:16,524 INFO L225 Difference]: With dead ends: 136 [2018-03-29 21:15:16,524 INFO L226 Difference]: Without dead ends: 135 [2018-03-29 21:15:16,525 INFO L567 BasicCegarLoop]: 0 DeclaredPredicates, 79 GetRequests, 75 SyntacticMatches, 1 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2018-03-29 21:15:16,525 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 135 states. [2018-03-29 21:15:16,534 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 135 to 116. [2018-03-29 21:15:16,534 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 116 states. [2018-03-29 21:15:16,535 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 116 states to 116 states and 121 transitions. [2018-03-29 21:15:16,535 INFO L78 Accepts]: Start accepts. Automaton has 116 states and 121 transitions. Word has length 40 [2018-03-29 21:15:16,535 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-03-29 21:15:16,535 INFO L459 AbstractCegarLoop]: Abstraction has 116 states and 121 transitions. [2018-03-29 21:15:16,536 INFO L460 AbstractCegarLoop]: Interpolant automaton has 5 states. [2018-03-29 21:15:16,536 INFO L276 IsEmpty]: Start isEmpty. Operand 116 states and 121 transitions. [2018-03-29 21:15:16,537 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 42 [2018-03-29 21:15:16,537 INFO L347 BasicCegarLoop]: Found error trace [2018-03-29 21:15:16,537 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] [2018-03-29 21:15:16,537 INFO L408 AbstractCegarLoop]: === Iteration 11 === [mainErr5RequiresViolation, mainErr1RequiresViolation, mainErr6AssertViolationMEMORY_FREE, mainErr13AssertViolationMEMORY_FREE, mainErr10AssertViolationMEMORY_FREE, mainErr11AssertViolationMEMORY_FREE, mainErr0RequiresViolation, mainErr14EnsuresViolationMEMORY_LEAK, mainErr3RequiresViolation, mainErr7AssertViolationMEMORY_FREE, mainErr9AssertViolationMEMORY_FREE, mainErr2RequiresViolation, mainErr4RequiresViolation, mainErr8AssertViolationMEMORY_FREE, mainErr12AssertViolationMEMORY_FREE, __U_MULTI_f___________true_valid_memsafety_i__fooErr1RequiresViolation, __U_MULTI_f___________true_valid_memsafety_i__fooErr3RequiresViolation, __U_MULTI_f___________true_valid_memsafety_i__fooErr2RequiresViolation, __U_MULTI_f___________true_valid_memsafety_i__fooErr0RequiresViolation]=== [2018-03-29 21:15:16,538 INFO L82 PathProgramCache]: Analyzing trace with hash -981449705, 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 [2018-03-29 21:15:16,550 INFO L68 tionRefinementEngine]: Using refinement strategy FixedRefinementStrategy [2018-03-29 21:15:16,580 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-03-29 21:15:16,583 INFO L270 TraceCheckSpWp]: Computing forward predicates... [2018-03-29 21:15:16,677 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 [2018-03-29 21:15:16,677 INFO L267 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2018-03-29 21:15:16,682 INFO L267 ElimStorePlain]: Start of recursive call 1: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-03-29 21:15:16,683 INFO L202 ElimStorePlain]: Needed 2 recursive calls to eliminate 1 variables, input treesize:15, output treesize:14 [2018-03-29 21:15:16,731 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 [2018-03-29 21:15:16,732 INFO L267 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2018-03-29 21:15:16,740 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. [2018-03-29 21:15:16,740 INFO L202 ElimStorePlain]: Needed 2 recursive calls to eliminate 3 variables, input treesize:22, output treesize:21 [2018-03-29 21:15:16,824 INFO L134 CoverageAnalysis]: Checked inductivity of 6 backedges. 3 proven. 3 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-03-29 21:15:16,825 INFO L314 TraceCheckSpWp]: Computing backward predicates... [2018-03-29 21:15:17,671 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 [2018-03-29 21:15:17,708 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 [2018-03-29 21:15:17,709 INFO L267 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 1 xjuncts. [2018-03-29 21:15:17,711 INFO L267 ElimStorePlain]: Start of recursive call 2: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-03-29 21:15:17,713 INFO L267 ElimStorePlain]: Start of recursive call 1: 2 dim-0 vars, 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-03-29 21:15:17,713 INFO L202 ElimStorePlain]: Needed 3 recursive calls to eliminate 3 variables, input treesize:15, output treesize:5 [2018-03-29 21:15:17,728 INFO L134 CoverageAnalysis]: Checked inductivity of 6 backedges. 3 proven. 3 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-03-29 21:15:17,750 INFO L320 seRefinementStrategy]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2018-03-29 21:15:17,750 INFO L335 seRefinementStrategy]: Number of different interpolants: perfect sequences [] imperfect sequences [10, 10] total 16 [2018-03-29 21:15:17,750 INFO L442 AbstractCegarLoop]: Interpolant automaton has 17 states [2018-03-29 21:15:17,751 INFO L132 InterpolantAutomaton]: Constructing interpolant automaton starting with 17 interpolants. [2018-03-29 21:15:17,751 INFO L133 InterpolantAutomaton]: CoverageRelationStatistics Valid=53, Invalid=217, Unknown=2, NotChecked=0, Total=272 [2018-03-29 21:15:17,751 INFO L87 Difference]: Start difference. First operand 116 states and 121 transitions. Second operand 17 states. [2018-03-29 21:15:18,218 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-03-29 21:15:18,219 INFO L93 Difference]: Finished difference Result 188 states and 194 transitions. [2018-03-29 21:15:18,219 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2018-03-29 21:15:18,219 INFO L78 Accepts]: Start accepts. Automaton has 17 states. Word has length 41 [2018-03-29 21:15:18,220 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-03-29 21:15:18,221 INFO L225 Difference]: With dead ends: 188 [2018-03-29 21:15:18,221 INFO L226 Difference]: Without dead ends: 147 [2018-03-29 21:15:18,222 INFO L567 BasicCegarLoop]: 0 DeclaredPredicates, 90 GetRequests, 63 SyntacticMatches, 3 SemanticMatches, 24 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 123 ImplicationChecksByTransitivity, 1.1s TimeCoverageRelationStatistics Valid=143, Invalid=505, Unknown=2, NotChecked=0, Total=650 [2018-03-29 21:15:18,222 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 147 states. [2018-03-29 21:15:18,235 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 147 to 122. [2018-03-29 21:15:18,235 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 122 states. [2018-03-29 21:15:18,236 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 122 states to 122 states and 127 transitions. [2018-03-29 21:15:18,237 INFO L78 Accepts]: Start accepts. Automaton has 122 states and 127 transitions. Word has length 41 [2018-03-29 21:15:18,237 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-03-29 21:15:18,237 INFO L459 AbstractCegarLoop]: Abstraction has 122 states and 127 transitions. [2018-03-29 21:15:18,237 INFO L460 AbstractCegarLoop]: Interpolant automaton has 17 states. [2018-03-29 21:15:18,237 INFO L276 IsEmpty]: Start isEmpty. Operand 122 states and 127 transitions. [2018-03-29 21:15:18,238 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 48 [2018-03-29 21:15:18,239 INFO L347 BasicCegarLoop]: Found error trace [2018-03-29 21:15:18,239 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, 1, 1] [2018-03-29 21:15:18,239 INFO L408 AbstractCegarLoop]: === Iteration 12 === [mainErr5RequiresViolation, mainErr1RequiresViolation, mainErr6AssertViolationMEMORY_FREE, mainErr13AssertViolationMEMORY_FREE, mainErr10AssertViolationMEMORY_FREE, mainErr11AssertViolationMEMORY_FREE, mainErr0RequiresViolation, mainErr14EnsuresViolationMEMORY_LEAK, mainErr3RequiresViolation, mainErr7AssertViolationMEMORY_FREE, mainErr9AssertViolationMEMORY_FREE, mainErr2RequiresViolation, mainErr4RequiresViolation, mainErr8AssertViolationMEMORY_FREE, mainErr12AssertViolationMEMORY_FREE, __U_MULTI_f___________true_valid_memsafety_i__fooErr1RequiresViolation, __U_MULTI_f___________true_valid_memsafety_i__fooErr3RequiresViolation, __U_MULTI_f___________true_valid_memsafety_i__fooErr2RequiresViolation, __U_MULTI_f___________true_valid_memsafety_i__fooErr0RequiresViolation]=== [2018-03-29 21:15:18,239 INFO L82 PathProgramCache]: Analyzing trace with hash -1672473413, now seen corresponding path program 1 times No working directory specified, using /storage/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 13 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 13 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2018-03-29 21:15:18,246 INFO L68 tionRefinementEngine]: Using refinement strategy FixedRefinementStrategy [2018-03-29 21:15:18,263 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-03-29 21:15:18,265 INFO L270 TraceCheckSpWp]: Computing forward predicates... [2018-03-29 21:15:18,276 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 19 treesize of output 15 [2018-03-29 21:15:18,278 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 15 treesize of output 3 [2018-03-29 21:15:18,278 INFO L267 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 1 xjuncts. [2018-03-29 21:15:18,279 INFO L267 ElimStorePlain]: Start of recursive call 2: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-03-29 21:15:18,280 INFO L267 ElimStorePlain]: Start of recursive call 1: 2 dim-0 vars, 1 dim-2 vars, End of recursive call: and 1 xjuncts. [2018-03-29 21:15:18,280 INFO L202 ElimStorePlain]: Needed 3 recursive calls to eliminate 3 variables, input treesize:19, output treesize:3 [2018-03-29 21:15:18,285 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2018-03-29 21:15:18,285 INFO L314 TraceCheckSpWp]: Computing backward predicates... [2018-03-29 21:15:18,292 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 18 treesize of output 14 [2018-03-29 21:15:18,297 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 2 new quantified variables, introduced 0 case distinctions, treesize of input 14 treesize of output 14 [2018-03-29 21:15:18,297 INFO L267 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 1 xjuncts. [2018-03-29 21:15:18,299 INFO L267 ElimStorePlain]: Start of recursive call 2: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-03-29 21:15:18,300 INFO L267 ElimStorePlain]: Start of recursive call 1: 2 dim-0 vars, 1 dim-2 vars, End of recursive call: 1 dim-0 vars, and 1 xjuncts. [2018-03-29 21:15:18,300 INFO L202 ElimStorePlain]: Needed 3 recursive calls to eliminate 3 variables, input treesize:18, output treesize:10 [2018-03-29 21:15:18,326 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2018-03-29 21:15:18,359 INFO L320 seRefinementStrategy]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2018-03-29 21:15:18,359 INFO L335 seRefinementStrategy]: Number of different interpolants: perfect sequences [5, 5] imperfect sequences [] total 6 [2018-03-29 21:15:18,360 INFO L442 AbstractCegarLoop]: Interpolant automaton has 6 states [2018-03-29 21:15:18,360 INFO L132 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2018-03-29 21:15:18,360 INFO L133 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2018-03-29 21:15:18,360 INFO L87 Difference]: Start difference. First operand 122 states and 127 transitions. Second operand 6 states. [2018-03-29 21:15:18,557 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-03-29 21:15:18,557 INFO L93 Difference]: Finished difference Result 144 states and 147 transitions. [2018-03-29 21:15:18,558 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2018-03-29 21:15:18,558 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 47 [2018-03-29 21:15:18,558 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-03-29 21:15:18,559 INFO L225 Difference]: With dead ends: 144 [2018-03-29 21:15:18,559 INFO L226 Difference]: Without dead ends: 131 [2018-03-29 21:15:18,560 INFO L567 BasicCegarLoop]: 0 DeclaredPredicates, 94 GetRequests, 88 SyntacticMatches, 1 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=17, Invalid=25, Unknown=0, NotChecked=0, Total=42 [2018-03-29 21:15:18,560 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 131 states. [2018-03-29 21:15:18,571 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 131 to 122. [2018-03-29 21:15:18,571 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 122 states. [2018-03-29 21:15:18,572 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 122 states to 122 states and 126 transitions. [2018-03-29 21:15:18,572 INFO L78 Accepts]: Start accepts. Automaton has 122 states and 126 transitions. Word has length 47 [2018-03-29 21:15:18,572 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-03-29 21:15:18,573 INFO L459 AbstractCegarLoop]: Abstraction has 122 states and 126 transitions. [2018-03-29 21:15:18,573 INFO L460 AbstractCegarLoop]: Interpolant automaton has 6 states. [2018-03-29 21:15:18,573 INFO L276 IsEmpty]: Start isEmpty. Operand 122 states and 126 transitions. [2018-03-29 21:15:18,574 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 48 [2018-03-29 21:15:18,574 INFO L347 BasicCegarLoop]: Found error trace [2018-03-29 21:15:18,574 INFO L355 BasicCegarLoop]: trace histogram [3, 3, 2, 2, 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] [2018-03-29 21:15:18,574 INFO L408 AbstractCegarLoop]: === Iteration 13 === [mainErr5RequiresViolation, mainErr1RequiresViolation, mainErr6AssertViolationMEMORY_FREE, mainErr13AssertViolationMEMORY_FREE, mainErr10AssertViolationMEMORY_FREE, mainErr11AssertViolationMEMORY_FREE, mainErr0RequiresViolation, mainErr14EnsuresViolationMEMORY_LEAK, mainErr3RequiresViolation, mainErr7AssertViolationMEMORY_FREE, mainErr9AssertViolationMEMORY_FREE, mainErr2RequiresViolation, mainErr4RequiresViolation, mainErr8AssertViolationMEMORY_FREE, mainErr12AssertViolationMEMORY_FREE, __U_MULTI_f___________true_valid_memsafety_i__fooErr1RequiresViolation, __U_MULTI_f___________true_valid_memsafety_i__fooErr3RequiresViolation, __U_MULTI_f___________true_valid_memsafety_i__fooErr2RequiresViolation, __U_MULTI_f___________true_valid_memsafety_i__fooErr0RequiresViolation]=== [2018-03-29 21:15:18,574 INFO L82 PathProgramCache]: Analyzing trace with hash 1050810381, now seen corresponding path program 2 times No working directory specified, using /storage/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 14 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 14 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2018-03-29 21:15:18,598 INFO L68 tionRefinementEngine]: Using refinement strategy FixedRefinementStrategy [2018-03-29 21:15:18,633 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-03-29 21:15:18,635 INFO L270 TraceCheckSpWp]: Computing forward predicates... [2018-03-29 21:15:18,691 INFO L134 CoverageAnalysis]: Checked inductivity of 15 backedges. 12 proven. 3 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-03-29 21:15:18,692 INFO L314 TraceCheckSpWp]: Computing backward predicates... [2018-03-29 21:15:18,758 INFO L134 CoverageAnalysis]: Checked inductivity of 15 backedges. 12 proven. 3 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-03-29 21:15:18,782 INFO L320 seRefinementStrategy]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2018-03-29 21:15:18,782 INFO L335 seRefinementStrategy]: Number of different interpolants: perfect sequences [] imperfect sequences [10, 10] total 15 [2018-03-29 21:15:18,782 INFO L442 AbstractCegarLoop]: Interpolant automaton has 15 states [2018-03-29 21:15:18,783 INFO L132 InterpolantAutomaton]: Constructing interpolant automaton starting with 15 interpolants. [2018-03-29 21:15:18,783 INFO L133 InterpolantAutomaton]: CoverageRelationStatistics Valid=50, Invalid=160, Unknown=0, NotChecked=0, Total=210 [2018-03-29 21:15:18,783 INFO L87 Difference]: Start difference. First operand 122 states and 126 transitions. Second operand 15 states. [2018-03-29 21:15:19,271 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-03-29 21:15:19,271 INFO L93 Difference]: Finished difference Result 255 states and 263 transitions. [2018-03-29 21:15:19,271 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 20 states. [2018-03-29 21:15:19,271 INFO L78 Accepts]: Start accepts. Automaton has 15 states. Word has length 47 [2018-03-29 21:15:19,272 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-03-29 21:15:19,273 INFO L225 Difference]: With dead ends: 255 [2018-03-29 21:15:19,273 INFO L226 Difference]: Without dead ends: 208 [2018-03-29 21:15:19,274 INFO L567 BasicCegarLoop]: 0 DeclaredPredicates, 104 GetRequests, 77 SyntacticMatches, 3 SemanticMatches, 24 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 121 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=166, Invalid=484, Unknown=0, NotChecked=0, Total=650 [2018-03-29 21:15:19,274 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 208 states. [2018-03-29 21:15:19,284 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 208 to 166. [2018-03-29 21:15:19,285 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 166 states. [2018-03-29 21:15:19,286 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 166 states to 166 states and 173 transitions. [2018-03-29 21:15:19,286 INFO L78 Accepts]: Start accepts. Automaton has 166 states and 173 transitions. Word has length 47 [2018-03-29 21:15:19,286 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-03-29 21:15:19,287 INFO L459 AbstractCegarLoop]: Abstraction has 166 states and 173 transitions. [2018-03-29 21:15:19,287 INFO L460 AbstractCegarLoop]: Interpolant automaton has 15 states. [2018-03-29 21:15:19,287 INFO L276 IsEmpty]: Start isEmpty. Operand 166 states and 173 transitions. [2018-03-29 21:15:19,288 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 49 [2018-03-29 21:15:19,288 INFO L347 BasicCegarLoop]: Found error trace [2018-03-29 21:15:19,288 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, 1, 1, 1] [2018-03-29 21:15:19,288 INFO L408 AbstractCegarLoop]: === Iteration 14 === [mainErr5RequiresViolation, mainErr1RequiresViolation, mainErr6AssertViolationMEMORY_FREE, mainErr13AssertViolationMEMORY_FREE, mainErr10AssertViolationMEMORY_FREE, mainErr11AssertViolationMEMORY_FREE, mainErr0RequiresViolation, mainErr14EnsuresViolationMEMORY_LEAK, mainErr3RequiresViolation, mainErr7AssertViolationMEMORY_FREE, mainErr9AssertViolationMEMORY_FREE, mainErr2RequiresViolation, mainErr4RequiresViolation, mainErr8AssertViolationMEMORY_FREE, mainErr12AssertViolationMEMORY_FREE, __U_MULTI_f___________true_valid_memsafety_i__fooErr1RequiresViolation, __U_MULTI_f___________true_valid_memsafety_i__fooErr3RequiresViolation, __U_MULTI_f___________true_valid_memsafety_i__fooErr2RequiresViolation, __U_MULTI_f___________true_valid_memsafety_i__fooErr0RequiresViolation]=== [2018-03-29 21:15:19,288 INFO L82 PathProgramCache]: Analyzing trace with hash -1723209179, now seen corresponding path program 1 times No working directory specified, using /storage/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 15 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 15 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2018-03-29 21:15:19,296 INFO L68 tionRefinementEngine]: Using refinement strategy FixedRefinementStrategy [2018-03-29 21:15:19,312 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-03-29 21:15:19,314 INFO L270 TraceCheckSpWp]: Computing forward predicates... [2018-03-29 21:15:19,317 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 [2018-03-29 21:15:19,317 INFO L267 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2018-03-29 21:15:19,319 INFO L267 ElimStorePlain]: Start of recursive call 1: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-03-29 21:15:19,320 INFO L202 ElimStorePlain]: Needed 2 recursive calls to eliminate 1 variables, input treesize:6, output treesize:5 [2018-03-29 21:15:19,336 INFO L700 Elim1Store]: detected not equals via solver [2018-03-29 21:15:19,336 INFO L700 Elim1Store]: detected not equals via solver [2018-03-29 21:15:19,337 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 [2018-03-29 21:15:19,337 INFO L267 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2018-03-29 21:15:19,338 INFO L267 ElimStorePlain]: Start of recursive call 1: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-03-29 21:15:19,338 INFO L202 ElimStorePlain]: Needed 2 recursive calls to eliminate 1 variables, input treesize:11, output treesize:4 [2018-03-29 21:15:19,362 INFO L700 Elim1Store]: detected not equals via solver [2018-03-29 21:15:19,363 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 1 select indices, 1 select index equivalence classes, 2 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 12 treesize of output 21 [2018-03-29 21:15:19,363 INFO L267 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2018-03-29 21:15:19,368 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. [2018-03-29 21:15:19,368 INFO L202 ElimStorePlain]: Needed 2 recursive calls to eliminate 2 variables, input treesize:16, output treesize:11 [2018-03-29 21:15:19,379 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2018-03-29 21:15:19,379 INFO L314 TraceCheckSpWp]: Computing backward predicates... [2018-03-29 21:15:19,396 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 6 treesize of output 1 [2018-03-29 21:15:19,396 INFO L267 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2018-03-29 21:15:19,398 INFO L267 ElimStorePlain]: Start of recursive call 1: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-03-29 21:15:19,398 INFO L202 ElimStorePlain]: Needed 2 recursive calls to eliminate 1 variables, input treesize:11, output treesize:4 [2018-03-29 21:15:19,420 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2018-03-29 21:15:19,448 INFO L320 seRefinementStrategy]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2018-03-29 21:15:19,448 INFO L335 seRefinementStrategy]: Number of different interpolants: perfect sequences [8, 8] imperfect sequences [] total 11 [2018-03-29 21:15:19,449 INFO L442 AbstractCegarLoop]: Interpolant automaton has 12 states [2018-03-29 21:15:19,449 INFO L132 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2018-03-29 21:15:19,449 INFO L133 InterpolantAutomaton]: CoverageRelationStatistics Valid=26, Invalid=106, Unknown=0, NotChecked=0, Total=132 [2018-03-29 21:15:19,450 INFO L87 Difference]: Start difference. First operand 166 states and 173 transitions. Second operand 12 states. [2018-03-29 21:15:19,817 WARN L148 SmtUtils]: Spent 106ms on a formula simplification that was a NOOP. DAG size: 11 [2018-03-29 21:15:19,966 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-03-29 21:15:19,966 INFO L93 Difference]: Finished difference Result 169 states and 177 transitions. [2018-03-29 21:15:19,966 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2018-03-29 21:15:19,966 INFO L78 Accepts]: Start accepts. Automaton has 12 states. Word has length 48 [2018-03-29 21:15:19,967 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-03-29 21:15:19,968 INFO L225 Difference]: With dead ends: 169 [2018-03-29 21:15:19,968 INFO L226 Difference]: Without dead ends: 167 [2018-03-29 21:15:19,969 INFO L567 BasicCegarLoop]: 0 DeclaredPredicates, 106 GetRequests, 86 SyntacticMatches, 1 SemanticMatches, 19 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 39 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=107, Invalid=313, Unknown=0, NotChecked=0, Total=420 [2018-03-29 21:15:19,969 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 167 states. [2018-03-29 21:15:20,003 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 167 to 164. [2018-03-29 21:15:20,003 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 164 states. [2018-03-29 21:15:20,011 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 164 states to 164 states and 171 transitions. [2018-03-29 21:15:20,012 INFO L78 Accepts]: Start accepts. Automaton has 164 states and 171 transitions. Word has length 48 [2018-03-29 21:15:20,012 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-03-29 21:15:20,012 INFO L459 AbstractCegarLoop]: Abstraction has 164 states and 171 transitions. [2018-03-29 21:15:20,012 INFO L460 AbstractCegarLoop]: Interpolant automaton has 12 states. [2018-03-29 21:15:20,012 INFO L276 IsEmpty]: Start isEmpty. Operand 164 states and 171 transitions. [2018-03-29 21:15:20,013 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 51 [2018-03-29 21:15:20,013 INFO L347 BasicCegarLoop]: Found error trace [2018-03-29 21:15:20,013 INFO L355 BasicCegarLoop]: trace histogram [3, 2, 2, 2, 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] [2018-03-29 21:15:20,013 INFO L408 AbstractCegarLoop]: === Iteration 15 === [mainErr5RequiresViolation, mainErr1RequiresViolation, mainErr6AssertViolationMEMORY_FREE, mainErr13AssertViolationMEMORY_FREE, mainErr10AssertViolationMEMORY_FREE, mainErr11AssertViolationMEMORY_FREE, mainErr0RequiresViolation, mainErr14EnsuresViolationMEMORY_LEAK, mainErr3RequiresViolation, mainErr7AssertViolationMEMORY_FREE, mainErr9AssertViolationMEMORY_FREE, mainErr2RequiresViolation, mainErr4RequiresViolation, mainErr8AssertViolationMEMORY_FREE, mainErr12AssertViolationMEMORY_FREE, __U_MULTI_f___________true_valid_memsafety_i__fooErr1RequiresViolation, __U_MULTI_f___________true_valid_memsafety_i__fooErr3RequiresViolation, __U_MULTI_f___________true_valid_memsafety_i__fooErr2RequiresViolation, __U_MULTI_f___________true_valid_memsafety_i__fooErr0RequiresViolation]=== [2018-03-29 21:15:20,014 INFO L82 PathProgramCache]: Analyzing trace with hash -1326143899, now seen corresponding path program 1 times No working directory specified, using /storage/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 16 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 16 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2018-03-29 21:15:20,038 INFO L68 tionRefinementEngine]: Using refinement strategy FixedRefinementStrategy [2018-03-29 21:15:20,079 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-03-29 21:15:20,082 INFO L270 TraceCheckSpWp]: Computing forward predicates... [2018-03-29 21:15:20,283 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 [2018-03-29 21:15:20,284 INFO L267 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2018-03-29 21:15:20,344 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. [2018-03-29 21:15:20,345 INFO L202 ElimStorePlain]: Needed 2 recursive calls to eliminate 2 variables, input treesize:15, output treesize:14 [2018-03-29 21:15:20,471 INFO L134 CoverageAnalysis]: Checked inductivity of 13 backedges. 3 proven. 0 refuted. 0 times theorem prover too weak. 10 trivial. 0 not checked. [2018-03-29 21:15:20,471 INFO L314 TraceCheckSpWp]: Computing backward predicates... [2018-03-29 21:15:20,628 INFO L134 CoverageAnalysis]: Checked inductivity of 13 backedges. 3 proven. 0 refuted. 0 times theorem prover too weak. 10 trivial. 0 not checked. [2018-03-29 21:15:20,659 INFO L320 seRefinementStrategy]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2018-03-29 21:15:20,660 INFO L335 seRefinementStrategy]: Number of different interpolants: perfect sequences [10, 10] imperfect sequences [] total 16 [2018-03-29 21:15:20,660 INFO L442 AbstractCegarLoop]: Interpolant automaton has 17 states [2018-03-29 21:15:20,660 INFO L132 InterpolantAutomaton]: Constructing interpolant automaton starting with 17 interpolants. [2018-03-29 21:15:20,660 INFO L133 InterpolantAutomaton]: CoverageRelationStatistics Valid=43, Invalid=229, Unknown=0, NotChecked=0, Total=272 [2018-03-29 21:15:20,660 INFO L87 Difference]: Start difference. First operand 164 states and 171 transitions. Second operand 17 states. [2018-03-29 21:15:21,484 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-03-29 21:15:21,485 INFO L93 Difference]: Finished difference Result 176 states and 183 transitions. [2018-03-29 21:15:21,485 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2018-03-29 21:15:21,485 INFO L78 Accepts]: Start accepts. Automaton has 17 states. Word has length 50 [2018-03-29 21:15:21,485 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-03-29 21:15:21,486 INFO L225 Difference]: With dead ends: 176 [2018-03-29 21:15:21,486 INFO L226 Difference]: Without dead ends: 173 [2018-03-29 21:15:21,487 INFO L567 BasicCegarLoop]: 0 DeclaredPredicates, 110 GetRequests, 81 SyntacticMatches, 3 SemanticMatches, 26 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 85 ImplicationChecksByTransitivity, 0.7s TimeCoverageRelationStatistics Valid=146, Invalid=610, Unknown=0, NotChecked=0, Total=756 [2018-03-29 21:15:21,487 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 173 states. [2018-03-29 21:15:21,497 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 173 to 158. [2018-03-29 21:15:21,497 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 158 states. [2018-03-29 21:15:21,498 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 158 states to 158 states and 165 transitions. [2018-03-29 21:15:21,498 INFO L78 Accepts]: Start accepts. Automaton has 158 states and 165 transitions. Word has length 50 [2018-03-29 21:15:21,498 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-03-29 21:15:21,498 INFO L459 AbstractCegarLoop]: Abstraction has 158 states and 165 transitions. [2018-03-29 21:15:21,499 INFO L460 AbstractCegarLoop]: Interpolant automaton has 17 states. [2018-03-29 21:15:21,499 INFO L276 IsEmpty]: Start isEmpty. Operand 158 states and 165 transitions. [2018-03-29 21:15:21,499 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 52 [2018-03-29 21:15:21,499 INFO L347 BasicCegarLoop]: Found error trace [2018-03-29 21:15:21,500 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, 1, 1, 1, 1, 1, 1] [2018-03-29 21:15:21,500 INFO L408 AbstractCegarLoop]: === Iteration 16 === [mainErr5RequiresViolation, mainErr1RequiresViolation, mainErr6AssertViolationMEMORY_FREE, mainErr13AssertViolationMEMORY_FREE, mainErr10AssertViolationMEMORY_FREE, mainErr11AssertViolationMEMORY_FREE, mainErr0RequiresViolation, mainErr14EnsuresViolationMEMORY_LEAK, mainErr3RequiresViolation, mainErr7AssertViolationMEMORY_FREE, mainErr9AssertViolationMEMORY_FREE, mainErr2RequiresViolation, mainErr4RequiresViolation, mainErr8AssertViolationMEMORY_FREE, mainErr12AssertViolationMEMORY_FREE, __U_MULTI_f___________true_valid_memsafety_i__fooErr1RequiresViolation, __U_MULTI_f___________true_valid_memsafety_i__fooErr3RequiresViolation, __U_MULTI_f___________true_valid_memsafety_i__fooErr2RequiresViolation, __U_MULTI_f___________true_valid_memsafety_i__fooErr0RequiresViolation]=== [2018-03-29 21:15:21,500 INFO L82 PathProgramCache]: Analyzing trace with hash 1619579565, now seen corresponding path program 1 times No working directory specified, using /storage/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 17 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 17 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2018-03-29 21:15:21,514 INFO L68 tionRefinementEngine]: Using refinement strategy FixedRefinementStrategy [2018-03-29 21:15:21,535 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-03-29 21:15:21,537 INFO L270 TraceCheckSpWp]: Computing forward predicates... [2018-03-29 21:15:21,652 INFO L700 Elim1Store]: detected not equals via solver [2018-03-29 21:15:21,653 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 2 select indices, 2 select index equivalence classes, 2 disjoint index pairs (out of 1 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 20 treesize of output 27 [2018-03-29 21:15:21,656 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 2 select indices, 2 select index equivalence classes, 2 disjoint index pairs (out of 1 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 23 treesize of output 15 [2018-03-29 21:15:21,657 INFO L267 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 1 xjuncts. [2018-03-29 21:15:21,661 INFO L267 ElimStorePlain]: Start of recursive call 2: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-03-29 21:15:21,666 INFO L267 ElimStorePlain]: Start of recursive call 1: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-03-29 21:15:21,667 INFO L202 ElimStorePlain]: Needed 3 recursive calls to eliminate 1 variables, input treesize:23, output treesize:15 [2018-03-29 21:15:21,692 WARN L1033 $PredicateComparison]: unable to prove that (exists ((~__U_MULTI_f___________true_valid_memsafety_i__a~0.base Int)) (let ((.cse0 (store |c_old(#valid)| ~__U_MULTI_f___________true_valid_memsafety_i__a~0.base 1))) (and (= (store (store .cse0 c_~__U_MULTI_f___________true_valid_memsafety_i__b~0.base 1) ~__U_MULTI_f___________true_valid_memsafety_i__a~0.base 0) |c_#valid|) (= 0 (select .cse0 c_~__U_MULTI_f___________true_valid_memsafety_i__b~0.base)) (= (select |c_old(#valid)| ~__U_MULTI_f___________true_valid_memsafety_i__a~0.base) 0)))) is different from true [2018-03-29 21:15:21,705 WARN L1033 $PredicateComparison]: unable to prove that (exists ((~__U_MULTI_f___________true_valid_memsafety_i__b~0.base Int) (~__U_MULTI_f___________true_valid_memsafety_i__a~0.base Int)) (let ((.cse0 (store |c_old(#valid)| ~__U_MULTI_f___________true_valid_memsafety_i__a~0.base 1))) (and (= 0 (select .cse0 ~__U_MULTI_f___________true_valid_memsafety_i__b~0.base)) (= (select |c_old(#valid)| ~__U_MULTI_f___________true_valid_memsafety_i__a~0.base) 0) (= (store (store (store .cse0 ~__U_MULTI_f___________true_valid_memsafety_i__b~0.base 1) ~__U_MULTI_f___________true_valid_memsafety_i__a~0.base 0) ~__U_MULTI_f___________true_valid_memsafety_i__b~0.base 0) |c_#valid|)))) is different from true [2018-03-29 21:15:21,711 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2018-03-29 21:15:21,711 INFO L314 TraceCheckSpWp]: Computing backward predicates... [2018-03-29 21:15:21,763 WARN L1011 $PredicateComparison]: unable to prove that (forall ((|v_main_#t~malloc5.base_18| Int)) (or (= |c_old(#valid)| (store (store (store |c_#valid| |v_main_#t~malloc5.base_18| 1) c_~__U_MULTI_f___________true_valid_memsafety_i__a~0.base 0) |v_main_#t~malloc5.base_18| 0)) (not (= (select |c_#valid| |v_main_#t~malloc5.base_18|) 0)))) is different from false [2018-03-29 21:15:21,765 WARN L1011 $PredicateComparison]: unable to prove that (forall ((|v_main_#t~malloc5.base_18| Int)) (or (not (= (select |c_#valid| |v_main_#t~malloc5.base_18|) 0)) (= (store (store (store |c_#valid| |v_main_#t~malloc5.base_18| 1) |c_main_#t~malloc4.base| 0) |v_main_#t~malloc5.base_18| 0) |c_old(#valid)|))) is different from false [2018-03-29 21:15:21,768 WARN L1011 $PredicateComparison]: unable to prove that (forall ((|v_main_#t~malloc4.base_17| Int) (|v_main_#t~malloc5.base_18| Int)) (let ((.cse0 (store |c_#valid| |v_main_#t~malloc4.base_17| 1))) (or (not (= (select .cse0 |v_main_#t~malloc5.base_18|) 0)) (= (store (store (store .cse0 |v_main_#t~malloc5.base_18| 1) |v_main_#t~malloc4.base_17| 0) |v_main_#t~malloc5.base_18| 0) |c_old(#valid)|) (not (= (select |c_#valid| |v_main_#t~malloc4.base_17|) 0))))) is different from false [2018-03-29 21:15:21,785 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2018-03-29 21:15:21,821 INFO L320 seRefinementStrategy]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2018-03-29 21:15:21,821 INFO L335 seRefinementStrategy]: Number of different interpolants: perfect sequences [10, 9] imperfect sequences [] total 17 [2018-03-29 21:15:21,821 INFO L442 AbstractCegarLoop]: Interpolant automaton has 18 states [2018-03-29 21:15:21,822 INFO L132 InterpolantAutomaton]: Constructing interpolant automaton starting with 18 interpolants. [2018-03-29 21:15:21,822 INFO L133 InterpolantAutomaton]: CoverageRelationStatistics Valid=37, Invalid=134, Unknown=5, NotChecked=130, Total=306 [2018-03-29 21:15:21,822 INFO L87 Difference]: Start difference. First operand 158 states and 165 transitions. Second operand 18 states. [2018-03-29 21:15:21,898 WARN L1011 $PredicateComparison]: unable to prove that (and (forall ((|v_main_#t~malloc4.base_17| Int) (|v_main_#t~malloc5.base_18| Int)) (let ((.cse0 (store |c_#valid| |v_main_#t~malloc4.base_17| 1))) (or (not (= (select .cse0 |v_main_#t~malloc5.base_18|) 0)) (= (store (store (store .cse0 |v_main_#t~malloc5.base_18| 1) |v_main_#t~malloc4.base_17| 0) |v_main_#t~malloc5.base_18| 0) |c_old(#valid)|) (not (= (select |c_#valid| |v_main_#t~malloc4.base_17|) 0))))) (= |c_#valid| |c_old(#valid)|)) is different from false [2018-03-29 21:15:22,259 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-03-29 21:15:22,259 INFO L93 Difference]: Finished difference Result 169 states and 175 transitions. [2018-03-29 21:15:22,259 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2018-03-29 21:15:22,259 INFO L78 Accepts]: Start accepts. Automaton has 18 states. Word has length 51 [2018-03-29 21:15:22,259 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-03-29 21:15:22,260 INFO L225 Difference]: With dead ends: 169 [2018-03-29 21:15:22,260 INFO L226 Difference]: Without dead ends: 130 [2018-03-29 21:15:22,261 INFO L567 BasicCegarLoop]: 0 DeclaredPredicates, 109 GetRequests, 84 SyntacticMatches, 2 SemanticMatches, 23 ConstructedPredicates, 6 IntricatePredicates, 0 DeprecatedPredicates, 20 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=75, Invalid=284, Unknown=7, NotChecked=234, Total=600 [2018-03-29 21:15:22,261 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 130 states. [2018-03-29 21:15:22,268 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 130 to 130. [2018-03-29 21:15:22,268 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 130 states. [2018-03-29 21:15:22,269 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 130 states to 130 states and 136 transitions. [2018-03-29 21:15:22,269 INFO L78 Accepts]: Start accepts. Automaton has 130 states and 136 transitions. Word has length 51 [2018-03-29 21:15:22,269 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-03-29 21:15:22,269 INFO L459 AbstractCegarLoop]: Abstraction has 130 states and 136 transitions. [2018-03-29 21:15:22,269 INFO L460 AbstractCegarLoop]: Interpolant automaton has 18 states. [2018-03-29 21:15:22,269 INFO L276 IsEmpty]: Start isEmpty. Operand 130 states and 136 transitions. [2018-03-29 21:15:22,270 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 55 [2018-03-29 21:15:22,270 INFO L347 BasicCegarLoop]: Found error trace [2018-03-29 21:15:22,270 INFO L355 BasicCegarLoop]: trace histogram [3, 3, 3, 3, 2, 2, 2, 2, 2, 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] [2018-03-29 21:15:22,270 INFO L408 AbstractCegarLoop]: === Iteration 17 === [mainErr5RequiresViolation, mainErr1RequiresViolation, mainErr6AssertViolationMEMORY_FREE, mainErr13AssertViolationMEMORY_FREE, mainErr10AssertViolationMEMORY_FREE, mainErr11AssertViolationMEMORY_FREE, mainErr0RequiresViolation, mainErr14EnsuresViolationMEMORY_LEAK, mainErr3RequiresViolation, mainErr7AssertViolationMEMORY_FREE, mainErr9AssertViolationMEMORY_FREE, mainErr2RequiresViolation, mainErr4RequiresViolation, mainErr8AssertViolationMEMORY_FREE, mainErr12AssertViolationMEMORY_FREE, __U_MULTI_f___________true_valid_memsafety_i__fooErr1RequiresViolation, __U_MULTI_f___________true_valid_memsafety_i__fooErr3RequiresViolation, __U_MULTI_f___________true_valid_memsafety_i__fooErr2RequiresViolation, __U_MULTI_f___________true_valid_memsafety_i__fooErr0RequiresViolation]=== [2018-03-29 21:15:22,270 INFO L82 PathProgramCache]: Analyzing trace with hash 1595360437, now seen corresponding path program 3 times No working directory specified, using /storage/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 18 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 18 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2018-03-29 21:15:22,280 INFO L68 tionRefinementEngine]: Using refinement strategy FixedRefinementStrategy [2018-03-29 21:15:22,301 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-03-29 21:15:22,304 INFO L270 TraceCheckSpWp]: Computing forward predicates... [2018-03-29 21:15:22,358 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 [2018-03-29 21:15:22,358 INFO L267 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2018-03-29 21:15:22,364 INFO L267 ElimStorePlain]: Start of recursive call 1: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-03-29 21:15:22,365 INFO L202 ElimStorePlain]: Needed 2 recursive calls to eliminate 1 variables, input treesize:15, output treesize:14 [2018-03-29 21:15:22,387 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 [2018-03-29 21:15:22,387 INFO L267 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2018-03-29 21:15:22,394 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. [2018-03-29 21:15:22,395 INFO L202 ElimStorePlain]: Needed 2 recursive calls to eliminate 3 variables, input treesize:22, output treesize:21 [2018-03-29 21:15:22,521 INFO L134 CoverageAnalysis]: Checked inductivity of 25 backedges. 13 proven. 12 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-03-29 21:15:22,521 INFO L314 TraceCheckSpWp]: Computing backward predicates... [2018-03-29 21:15:23,000 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 [2018-03-29 21:15:23,011 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 14 treesize of output 5 [2018-03-29 21:15:23,011 INFO L267 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 1 xjuncts. [2018-03-29 21:15:23,012 INFO L267 ElimStorePlain]: Start of recursive call 2: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-03-29 21:15:23,013 INFO L267 ElimStorePlain]: Start of recursive call 1: 2 dim-0 vars, 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-03-29 21:15:23,013 INFO L202 ElimStorePlain]: Needed 3 recursive calls to eliminate 3 variables, input treesize:15, output treesize:5 [2018-03-29 21:15:23,034 INFO L134 CoverageAnalysis]: Checked inductivity of 25 backedges. 13 proven. 12 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-03-29 21:15:23,056 INFO L320 seRefinementStrategy]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2018-03-29 21:15:23,056 INFO L335 seRefinementStrategy]: Number of different interpolants: perfect sequences [] imperfect sequences [14, 14] total 22 [2018-03-29 21:15:23,057 INFO L442 AbstractCegarLoop]: Interpolant automaton has 23 states [2018-03-29 21:15:23,057 INFO L132 InterpolantAutomaton]: Constructing interpolant automaton starting with 23 interpolants. [2018-03-29 21:15:23,057 INFO L133 InterpolantAutomaton]: CoverageRelationStatistics Valid=79, Invalid=426, Unknown=1, NotChecked=0, Total=506 [2018-03-29 21:15:23,057 INFO L87 Difference]: Start difference. First operand 130 states and 136 transitions. Second operand 23 states. [2018-03-29 21:15:23,570 WARN L151 SmtUtils]: Spent 118ms on a formula simplification. DAG size of input: 21 DAG size of output 16 [2018-03-29 21:15:23,923 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-03-29 21:15:23,923 INFO L93 Difference]: Finished difference Result 206 states and 213 transitions. [2018-03-29 21:15:23,923 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 21 states. [2018-03-29 21:15:23,924 INFO L78 Accepts]: Start accepts. Automaton has 23 states. Word has length 54 [2018-03-29 21:15:23,924 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-03-29 21:15:23,924 INFO L225 Difference]: With dead ends: 206 [2018-03-29 21:15:23,924 INFO L226 Difference]: Without dead ends: 168 [2018-03-29 21:15:23,925 INFO L567 BasicCegarLoop]: 0 DeclaredPredicates, 121 GetRequests, 81 SyntacticMatches, 5 SemanticMatches, 35 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 298 ImplicationChecksByTransitivity, 1.0s TimeCoverageRelationStatistics Valid=246, Invalid=1085, Unknown=1, NotChecked=0, Total=1332 [2018-03-29 21:15:23,926 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 168 states. [2018-03-29 21:15:23,936 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 168 to 136. [2018-03-29 21:15:23,936 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 136 states. [2018-03-29 21:15:23,937 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 136 states to 136 states and 142 transitions. [2018-03-29 21:15:23,937 INFO L78 Accepts]: Start accepts. Automaton has 136 states and 142 transitions. Word has length 54 [2018-03-29 21:15:23,937 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-03-29 21:15:23,937 INFO L459 AbstractCegarLoop]: Abstraction has 136 states and 142 transitions. [2018-03-29 21:15:23,937 INFO L460 AbstractCegarLoop]: Interpolant automaton has 23 states. [2018-03-29 21:15:23,937 INFO L276 IsEmpty]: Start isEmpty. Operand 136 states and 142 transitions. [2018-03-29 21:15:23,938 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 57 [2018-03-29 21:15:23,938 INFO L347 BasicCegarLoop]: Found error trace [2018-03-29 21:15:23,938 INFO L355 BasicCegarLoop]: trace histogram [3, 2, 2, 2, 2, 2, 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, 1, 1] [2018-03-29 21:15:23,938 INFO L408 AbstractCegarLoop]: === Iteration 18 === [mainErr5RequiresViolation, mainErr1RequiresViolation, mainErr6AssertViolationMEMORY_FREE, mainErr13AssertViolationMEMORY_FREE, mainErr10AssertViolationMEMORY_FREE, mainErr11AssertViolationMEMORY_FREE, mainErr0RequiresViolation, mainErr14EnsuresViolationMEMORY_LEAK, mainErr3RequiresViolation, mainErr7AssertViolationMEMORY_FREE, mainErr9AssertViolationMEMORY_FREE, mainErr2RequiresViolation, mainErr4RequiresViolation, mainErr8AssertViolationMEMORY_FREE, mainErr12AssertViolationMEMORY_FREE, __U_MULTI_f___________true_valid_memsafety_i__fooErr1RequiresViolation, __U_MULTI_f___________true_valid_memsafety_i__fooErr3RequiresViolation, __U_MULTI_f___________true_valid_memsafety_i__fooErr2RequiresViolation, __U_MULTI_f___________true_valid_memsafety_i__fooErr0RequiresViolation]=== [2018-03-29 21:15:23,938 INFO L82 PathProgramCache]: Analyzing trace with hash 657403739, now seen corresponding path program 1 times No working directory specified, using /storage/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 19 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 19 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2018-03-29 21:15:23,948 INFO L68 tionRefinementEngine]: Using refinement strategy FixedRefinementStrategy [2018-03-29 21:15:23,972 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-03-29 21:15:23,974 INFO L270 TraceCheckSpWp]: Computing forward predicates... [2018-03-29 21:15:24,037 INFO L134 CoverageAnalysis]: Checked inductivity of 16 backedges. 3 proven. 3 refuted. 0 times theorem prover too weak. 10 trivial. 0 not checked. [2018-03-29 21:15:24,037 INFO L314 TraceCheckSpWp]: Computing backward predicates... [2018-03-29 21:15:24,079 INFO L134 CoverageAnalysis]: Checked inductivity of 16 backedges. 3 proven. 3 refuted. 0 times theorem prover too weak. 10 trivial. 0 not checked. [2018-03-29 21:15:24,102 INFO L320 seRefinementStrategy]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2018-03-29 21:15:24,102 INFO L335 seRefinementStrategy]: Number of different interpolants: perfect sequences [] imperfect sequences [8, 8] total 11 [2018-03-29 21:15:24,103 INFO L442 AbstractCegarLoop]: Interpolant automaton has 11 states [2018-03-29 21:15:24,103 INFO L132 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2018-03-29 21:15:24,103 INFO L133 InterpolantAutomaton]: CoverageRelationStatistics Valid=29, Invalid=81, Unknown=0, NotChecked=0, Total=110 [2018-03-29 21:15:24,103 INFO L87 Difference]: Start difference. First operand 136 states and 142 transitions. Second operand 11 states. [2018-03-29 21:15:24,433 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-03-29 21:15:24,434 INFO L93 Difference]: Finished difference Result 195 states and 201 transitions. [2018-03-29 21:15:24,434 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2018-03-29 21:15:24,434 INFO L78 Accepts]: Start accepts. Automaton has 11 states. Word has length 56 [2018-03-29 21:15:24,434 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-03-29 21:15:24,435 INFO L225 Difference]: With dead ends: 195 [2018-03-29 21:15:24,435 INFO L226 Difference]: Without dead ends: 162 [2018-03-29 21:15:24,436 INFO L567 BasicCegarLoop]: 0 DeclaredPredicates, 116 GetRequests, 99 SyntacticMatches, 3 SemanticMatches, 14 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 34 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=63, Invalid=177, Unknown=0, NotChecked=0, Total=240 [2018-03-29 21:15:24,436 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 162 states. [2018-03-29 21:15:24,448 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 162 to 135. [2018-03-29 21:15:24,448 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 135 states. [2018-03-29 21:15:24,450 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 135 states to 135 states and 139 transitions. [2018-03-29 21:15:24,450 INFO L78 Accepts]: Start accepts. Automaton has 135 states and 139 transitions. Word has length 56 [2018-03-29 21:15:24,450 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-03-29 21:15:24,450 INFO L459 AbstractCegarLoop]: Abstraction has 135 states and 139 transitions. [2018-03-29 21:15:24,450 INFO L460 AbstractCegarLoop]: Interpolant automaton has 11 states. [2018-03-29 21:15:24,450 INFO L276 IsEmpty]: Start isEmpty. Operand 135 states and 139 transitions. [2018-03-29 21:15:24,451 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 60 [2018-03-29 21:15:24,451 INFO L347 BasicCegarLoop]: Found error trace [2018-03-29 21:15:24,451 INFO L355 BasicCegarLoop]: trace histogram [3, 2, 2, 2, 2, 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, 1, 1, 1, 1, 1, 1, 1] [2018-03-29 21:15:24,451 INFO L408 AbstractCegarLoop]: === Iteration 19 === [mainErr5RequiresViolation, mainErr1RequiresViolation, mainErr6AssertViolationMEMORY_FREE, mainErr13AssertViolationMEMORY_FREE, mainErr10AssertViolationMEMORY_FREE, mainErr11AssertViolationMEMORY_FREE, mainErr0RequiresViolation, mainErr14EnsuresViolationMEMORY_LEAK, mainErr3RequiresViolation, mainErr7AssertViolationMEMORY_FREE, mainErr9AssertViolationMEMORY_FREE, mainErr2RequiresViolation, mainErr4RequiresViolation, mainErr8AssertViolationMEMORY_FREE, mainErr12AssertViolationMEMORY_FREE, __U_MULTI_f___________true_valid_memsafety_i__fooErr1RequiresViolation, __U_MULTI_f___________true_valid_memsafety_i__fooErr3RequiresViolation, __U_MULTI_f___________true_valid_memsafety_i__fooErr2RequiresViolation, __U_MULTI_f___________true_valid_memsafety_i__fooErr0RequiresViolation]=== [2018-03-29 21:15:24,452 INFO L82 PathProgramCache]: Analyzing trace with hash -337570150, now seen corresponding path program 1 times No working directory specified, using /storage/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 20 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 20 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2018-03-29 21:15:24,463 INFO L68 tionRefinementEngine]: Using refinement strategy FixedRefinementStrategy [2018-03-29 21:15:24,492 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-03-29 21:15:24,494 INFO L270 TraceCheckSpWp]: Computing forward predicates... [2018-03-29 21:15:24,551 INFO L134 CoverageAnalysis]: Checked inductivity of 15 backedges. 0 proven. 5 refuted. 0 times theorem prover too weak. 10 trivial. 0 not checked. [2018-03-29 21:15:24,551 INFO L314 TraceCheckSpWp]: Computing backward predicates... [2018-03-29 21:15:24,616 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 1 new quantified variables, introduced 0 case distinctions, treesize of input 23 treesize of output 21 [2018-03-29 21:15:24,617 INFO L267 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2018-03-29 21:15:24,622 INFO L267 ElimStorePlain]: Start of recursive call 1: 2 dim-0 vars, 1 dim-1 vars, End of recursive call: 1 dim-0 vars, and 2 xjuncts. [2018-03-29 21:15:24,622 INFO L202 ElimStorePlain]: Needed 2 recursive calls to eliminate 3 variables, input treesize:29, output treesize:20 [2018-03-29 21:15:24,748 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 33 treesize of output 31 [2018-03-29 21:15:24,749 INFO L267 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2018-03-29 21:15:24,750 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 1 new quantified variables, introduced 0 case distinctions, treesize of input 27 treesize of output 25 [2018-03-29 21:15:24,751 INFO L267 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 1 xjuncts. [2018-03-29 21:15:24,761 INFO L267 ElimStorePlain]: Start of recursive call 1: 1 dim-0 vars, 1 dim-1 vars, End of recursive call: and 2 xjuncts. [2018-03-29 21:15:24,761 INFO L202 ElimStorePlain]: Needed 3 recursive calls to eliminate 2 variables, input treesize:61, output treesize:43 [2018-03-29 21:15:24,868 INFO L134 CoverageAnalysis]: Checked inductivity of 15 backedges. 0 proven. 5 refuted. 0 times theorem prover too weak. 10 trivial. 0 not checked. [2018-03-29 21:15:24,904 INFO L320 seRefinementStrategy]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2018-03-29 21:15:24,904 INFO L335 seRefinementStrategy]: Number of different interpolants: perfect sequences [] imperfect sequences [7, 8] total 14 [2018-03-29 21:15:24,904 INFO L442 AbstractCegarLoop]: Interpolant automaton has 15 states [2018-03-29 21:15:24,904 INFO L132 InterpolantAutomaton]: Constructing interpolant automaton starting with 15 interpolants. [2018-03-29 21:15:24,905 INFO L133 InterpolantAutomaton]: CoverageRelationStatistics Valid=47, Invalid=163, Unknown=0, NotChecked=0, Total=210 [2018-03-29 21:15:24,905 INFO L87 Difference]: Start difference. First operand 135 states and 139 transitions. Second operand 15 states. [2018-03-29 21:15:25,376 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-03-29 21:15:25,376 INFO L93 Difference]: Finished difference Result 164 states and 168 transitions. [2018-03-29 21:15:25,376 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 17 states. [2018-03-29 21:15:25,377 INFO L78 Accepts]: Start accepts. Automaton has 15 states. Word has length 59 [2018-03-29 21:15:25,377 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-03-29 21:15:25,377 INFO L225 Difference]: With dead ends: 164 [2018-03-29 21:15:25,377 INFO L226 Difference]: Without dead ends: 163 [2018-03-29 21:15:25,378 INFO L567 BasicCegarLoop]: 0 DeclaredPredicates, 123 GetRequests, 103 SyntacticMatches, 1 SemanticMatches, 19 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 71 ImplicationChecksByTransitivity, 0.4s TimeCoverageRelationStatistics Valid=85, Invalid=335, Unknown=0, NotChecked=0, Total=420 [2018-03-29 21:15:25,378 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 163 states. [2018-03-29 21:15:25,389 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 163 to 137. [2018-03-29 21:15:25,389 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 137 states. [2018-03-29 21:15:25,392 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 137 states to 137 states and 141 transitions. [2018-03-29 21:15:25,392 INFO L78 Accepts]: Start accepts. Automaton has 137 states and 141 transitions. Word has length 59 [2018-03-29 21:15:25,392 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-03-29 21:15:25,393 INFO L459 AbstractCegarLoop]: Abstraction has 137 states and 141 transitions. [2018-03-29 21:15:25,393 INFO L460 AbstractCegarLoop]: Interpolant automaton has 15 states. [2018-03-29 21:15:25,393 INFO L276 IsEmpty]: Start isEmpty. Operand 137 states and 141 transitions. [2018-03-29 21:15:25,393 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 61 [2018-03-29 21:15:25,393 INFO L347 BasicCegarLoop]: Found error trace [2018-03-29 21:15:25,393 INFO L355 BasicCegarLoop]: trace histogram [4, 4, 3, 3, 3, 3, 3, 3, 2, 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] [2018-03-29 21:15:25,393 INFO L408 AbstractCegarLoop]: === Iteration 20 === [mainErr5RequiresViolation, mainErr1RequiresViolation, mainErr6AssertViolationMEMORY_FREE, mainErr13AssertViolationMEMORY_FREE, mainErr10AssertViolationMEMORY_FREE, mainErr11AssertViolationMEMORY_FREE, mainErr0RequiresViolation, mainErr14EnsuresViolationMEMORY_LEAK, mainErr3RequiresViolation, mainErr7AssertViolationMEMORY_FREE, mainErr9AssertViolationMEMORY_FREE, mainErr2RequiresViolation, mainErr4RequiresViolation, mainErr8AssertViolationMEMORY_FREE, mainErr12AssertViolationMEMORY_FREE, __U_MULTI_f___________true_valid_memsafety_i__fooErr1RequiresViolation, __U_MULTI_f___________true_valid_memsafety_i__fooErr3RequiresViolation, __U_MULTI_f___________true_valid_memsafety_i__fooErr2RequiresViolation, __U_MULTI_f___________true_valid_memsafety_i__fooErr0RequiresViolation]=== [2018-03-29 21:15:25,394 INFO L82 PathProgramCache]: Analyzing trace with hash -1324242389, now seen corresponding path program 4 times No working directory specified, using /storage/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 21 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 21 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2018-03-29 21:15:25,402 INFO L68 tionRefinementEngine]: Using refinement strategy FixedRefinementStrategy [2018-03-29 21:15:25,426 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-03-29 21:15:25,428 INFO L270 TraceCheckSpWp]: Computing forward predicates... [2018-03-29 21:15:25,601 INFO L134 CoverageAnalysis]: Checked inductivity of 40 backedges. 27 proven. 13 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-03-29 21:15:25,601 INFO L314 TraceCheckSpWp]: Computing backward predicates... [2018-03-29 21:15:25,691 INFO L134 CoverageAnalysis]: Checked inductivity of 40 backedges. 27 proven. 13 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-03-29 21:15:25,713 INFO L320 seRefinementStrategy]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2018-03-29 21:15:25,713 INFO L335 seRefinementStrategy]: Number of different interpolants: perfect sequences [] imperfect sequences [14, 14] total 21 [2018-03-29 21:15:25,714 INFO L442 AbstractCegarLoop]: Interpolant automaton has 21 states [2018-03-29 21:15:25,714 INFO L132 InterpolantAutomaton]: Constructing interpolant automaton starting with 21 interpolants. [2018-03-29 21:15:25,714 INFO L133 InterpolantAutomaton]: CoverageRelationStatistics Valid=84, Invalid=336, Unknown=0, NotChecked=0, Total=420 [2018-03-29 21:15:25,714 INFO L87 Difference]: Start difference. First operand 137 states and 141 transitions. Second operand 21 states. [2018-03-29 21:15:26,180 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-03-29 21:15:26,180 INFO L93 Difference]: Finished difference Result 283 states and 292 transitions. [2018-03-29 21:15:26,182 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 30 states. [2018-03-29 21:15:26,182 INFO L78 Accepts]: Start accepts. Automaton has 21 states. Word has length 60 [2018-03-29 21:15:26,182 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-03-29 21:15:26,184 INFO L225 Difference]: With dead ends: 283 [2018-03-29 21:15:26,184 INFO L226 Difference]: Without dead ends: 239 [2018-03-29 21:15:26,185 INFO L567 BasicCegarLoop]: 0 DeclaredPredicates, 138 GetRequests, 95 SyntacticMatches, 5 SemanticMatches, 38 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 347 ImplicationChecksByTransitivity, 0.4s TimeCoverageRelationStatistics Valid=334, Invalid=1226, Unknown=0, NotChecked=0, Total=1560 [2018-03-29 21:15:26,185 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 239 states. [2018-03-29 21:15:26,208 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 239 to 188. [2018-03-29 21:15:26,208 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 188 states. [2018-03-29 21:15:26,210 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 188 states to 188 states and 195 transitions. [2018-03-29 21:15:26,210 INFO L78 Accepts]: Start accepts. Automaton has 188 states and 195 transitions. Word has length 60 [2018-03-29 21:15:26,210 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-03-29 21:15:26,210 INFO L459 AbstractCegarLoop]: Abstraction has 188 states and 195 transitions. [2018-03-29 21:15:26,211 INFO L460 AbstractCegarLoop]: Interpolant automaton has 21 states. [2018-03-29 21:15:26,211 INFO L276 IsEmpty]: Start isEmpty. Operand 188 states and 195 transitions. [2018-03-29 21:15:26,212 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 67 [2018-03-29 21:15:26,212 INFO L347 BasicCegarLoop]: Found error trace [2018-03-29 21:15:26,212 INFO L355 BasicCegarLoop]: trace histogram [3, 2, 2, 2, 2, 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-03-29 21:15:26,212 INFO L408 AbstractCegarLoop]: === Iteration 21 === [mainErr5RequiresViolation, mainErr1RequiresViolation, mainErr6AssertViolationMEMORY_FREE, mainErr13AssertViolationMEMORY_FREE, mainErr10AssertViolationMEMORY_FREE, mainErr11AssertViolationMEMORY_FREE, mainErr0RequiresViolation, mainErr14EnsuresViolationMEMORY_LEAK, mainErr3RequiresViolation, mainErr7AssertViolationMEMORY_FREE, mainErr9AssertViolationMEMORY_FREE, mainErr2RequiresViolation, mainErr4RequiresViolation, mainErr8AssertViolationMEMORY_FREE, mainErr12AssertViolationMEMORY_FREE, __U_MULTI_f___________true_valid_memsafety_i__fooErr1RequiresViolation, __U_MULTI_f___________true_valid_memsafety_i__fooErr3RequiresViolation, __U_MULTI_f___________true_valid_memsafety_i__fooErr2RequiresViolation, __U_MULTI_f___________true_valid_memsafety_i__fooErr0RequiresViolation]=== [2018-03-29 21:15:26,212 INFO L82 PathProgramCache]: Analyzing trace with hash -1039770973, now seen corresponding path program 1 times No working directory specified, using /storage/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 22 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 22 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2018-03-29 21:15:26,224 INFO L68 tionRefinementEngine]: Using refinement strategy FixedRefinementStrategy [2018-03-29 21:15:26,256 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-03-29 21:15:26,260 INFO L270 TraceCheckSpWp]: Computing forward predicates... [2018-03-29 21:15:26,296 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 [2018-03-29 21:15:26,298 INFO L267 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2018-03-29 21:15:26,302 INFO L267 ElimStorePlain]: Start of recursive call 1: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-03-29 21:15:26,302 INFO L202 ElimStorePlain]: Needed 2 recursive calls to eliminate 1 variables, input treesize:10, output treesize:9 [2018-03-29 21:15:26,344 INFO L700 Elim1Store]: detected not equals via solver [2018-03-29 21:15:26,345 INFO L700 Elim1Store]: detected not equals via solver [2018-03-29 21:15:26,345 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 [2018-03-29 21:15:26,346 INFO L267 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2018-03-29 21:15:26,358 INFO L267 ElimStorePlain]: Start of recursive call 1: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-03-29 21:15:26,358 INFO L202 ElimStorePlain]: Needed 2 recursive calls to eliminate 1 variables, input treesize:17, output treesize:11 [2018-03-29 21:15:26,434 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 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 11 treesize of output 8 [2018-03-29 21:15:26,436 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 [2018-03-29 21:15:26,436 INFO L267 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 1 xjuncts. [2018-03-29 21:15:26,438 INFO L267 ElimStorePlain]: Start of recursive call 2: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-03-29 21:15:26,444 INFO L267 ElimStorePlain]: Start of recursive call 1: 1 dim-2 vars, End of recursive call: and 1 xjuncts. [2018-03-29 21:15:26,444 INFO L202 ElimStorePlain]: Needed 3 recursive calls to eliminate 1 variables, input treesize:22, output treesize:18 [2018-03-29 21:15:26,460 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 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 7 treesize of output 5 [2018-03-29 21:15:26,462 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 5 treesize of output 1 [2018-03-29 21:15:26,462 INFO L267 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 1 xjuncts. [2018-03-29 21:15:26,463 INFO L267 ElimStorePlain]: Start of recursive call 2: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-03-29 21:15:26,467 INFO L267 ElimStorePlain]: Start of recursive call 1: 1 dim-2 vars, End of recursive call: and 1 xjuncts. [2018-03-29 21:15:26,468 INFO L202 ElimStorePlain]: Needed 3 recursive calls to eliminate 1 variables, input treesize:21, output treesize:14 [2018-03-29 21:15:26,813 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 1 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 38 treesize of output 42 [2018-03-29 21:15:26,831 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 19 treesize of output 22 [2018-03-29 21:15:26,847 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 22 treesize of output 30 [2018-03-29 21:15:26,847 INFO L267 ElimStorePlain]: Start of recursive call 4: End of recursive call: and 1 xjuncts. [2018-03-29 21:15:26,865 INFO L267 ElimStorePlain]: Start of recursive call 3: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-03-29 21:15:26,880 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 1 disjoint index pairs (out of 1 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 41 treesize of output 40 [2018-03-29 21:15:26,883 INFO L700 Elim1Store]: detected not equals via solver [2018-03-29 21:15:26,884 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 14 treesize of output 19 [2018-03-29 21:15:26,884 INFO L267 ElimStorePlain]: Start of recursive call 6: End of recursive call: and 1 xjuncts. [2018-03-29 21:15:26,894 INFO L267 ElimStorePlain]: Start of recursive call 5: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-03-29 21:15:26,900 INFO L267 ElimStorePlain]: Start of recursive call 2: 1 dim-1 vars, 1 dim-2 vars, End of recursive call: and 1 xjuncts. [2018-03-29 21:15:26,910 INFO L267 ElimStorePlain]: Start of recursive call 1: 4 dim-0 vars, 1 dim-2 vars, End of recursive call: 4 dim-0 vars, and 1 xjuncts. [2018-03-29 21:15:26,910 INFO L202 ElimStorePlain]: Needed 6 recursive calls to eliminate 5 variables, input treesize:67, output treesize:47 [2018-03-29 21:15:29,029 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 2 select indices, 2 select index equivalence classes, 1 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 53 treesize of output 45 [2018-03-29 21:15:29,032 INFO L700 Elim1Store]: detected not equals via solver [2018-03-29 21:15:29,083 INFO L700 Elim1Store]: detected not equals via solver [2018-03-29 21:15:29,083 INFO L682 Elim1Store]: detected equality via solver [2018-03-29 21:15:29,084 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 3 select indices, 3 select index equivalence classes, 1 disjoint index pairs (out of 3 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 23 treesize of output 22 [2018-03-29 21:15:29,084 INFO L267 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 1 xjuncts. [2018-03-29 21:15:29,098 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 19 treesize of output 1 [2018-03-29 21:15:29,098 INFO L267 ElimStorePlain]: Start of recursive call 4: End of recursive call: and 1 xjuncts. [2018-03-29 21:15:29,100 INFO L267 ElimStorePlain]: Start of recursive call 2: 2 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-03-29 21:15:29,104 INFO L267 ElimStorePlain]: Start of recursive call 1: 5 dim-0 vars, 1 dim-2 vars, End of recursive call: and 1 xjuncts. [2018-03-29 21:15:29,104 INFO L202 ElimStorePlain]: Needed 4 recursive calls to eliminate 6 variables, input treesize:60, output treesize:10 [2018-03-29 21:15:29,128 INFO L134 CoverageAnalysis]: Checked inductivity of 15 backedges. 0 proven. 10 refuted. 5 times theorem prover too weak. 0 trivial. 0 not checked. [2018-03-29 21:15:29,129 INFO L314 TraceCheckSpWp]: Computing backward predicates... [2018-03-29 21:15:38,292 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 94 treesize of output 72 [2018-03-29 21:15:38,311 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 9 treesize of output 8 [2018-03-29 21:15:38,311 INFO L267 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 1 xjuncts. [2018-03-29 21:15:38,345 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 3 select indices, 3 select index equivalence classes, 0 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 3 case distinctions, treesize of input 85 treesize of output 99 [2018-03-29 21:15:38,725 WARN L151 SmtUtils]: Spent 373ms on a formula simplification. DAG size of input: 167 DAG size of output 157 [2018-03-29 21:15:38,728 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 67 treesize of output 63 [2018-03-29 21:15:38,732 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 1 new quantified variables, introduced 0 case distinctions, treesize of input 45 treesize of output 47 [2018-03-29 21:15:38,747 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 3 select indices, 3 select index equivalence classes, 3 disjoint index pairs (out of 3 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 34 treesize of output 28 [2018-03-29 21:15:38,748 INFO L267 ElimStorePlain]: Start of recursive call 7: End of recursive call: and 1 xjuncts. [2018-03-29 21:15:38,761 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 4 select indices, 4 select index equivalence classes, 5 disjoint index pairs (out of 6 index pairs), introduced 2 new quantified variables, introduced 2 case distinctions, treesize of input 42 treesize of output 69 [2018-03-29 21:15:38,762 INFO L267 ElimStorePlain]: Start of recursive call 8: End of recursive call: and 2 xjuncts. [2018-03-29 21:15:38,763 WARN L307 Elim1Store]: Array PQE input equivalent to true [2018-03-29 21:15:38,763 INFO L267 ElimStorePlain]: Start of recursive call 9: End of recursive call: and 1 xjuncts. [2018-03-29 21:15:38,820 INFO L267 ElimStorePlain]: Start of recursive call 6: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-03-29 21:15:38,833 INFO L267 ElimStorePlain]: Start of recursive call 5: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-03-29 21:15:38,856 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 2 select indices, 2 select index equivalence classes, 2 disjoint index pairs (out of 1 index pairs), introduced 3 new quantified variables, introduced 4 case distinctions, treesize of input 75 treesize of output 114 [2018-03-29 21:15:38,895 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 3 select indices, 3 select index equivalence classes, 3 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 6 case distinctions, treesize of input 81 treesize of output 145 [2018-03-29 21:15:39,162 WARN L151 SmtUtils]: Spent 258ms on a formula simplification. DAG size of input: 240 DAG size of output 120 [2018-03-29 21:15:39,166 INFO L700 Elim1Store]: detected not equals via solver [2018-03-29 21:15:39,166 INFO L682 Elim1Store]: detected equality via solver [2018-03-29 21:15:39,167 INFO L682 Elim1Store]: detected equality via solver [2018-03-29 21:15:39,167 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 4 select indices, 4 select index equivalence classes, 4 disjoint index pairs (out of 6 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 69 treesize of output 83 [2018-03-29 21:15:39,168 INFO L267 ElimStorePlain]: Start of recursive call 12: End of recursive call: and 1 xjuncts. [2018-03-29 21:15:39,296 INFO L682 Elim1Store]: detected equality via solver [2018-03-29 21:15:39,297 INFO L682 Elim1Store]: detected equality via solver [2018-03-29 21:15:39,297 INFO L682 Elim1Store]: detected equality via solver [2018-03-29 21:15:39,298 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 3 select indices, 3 select index equivalence classes, 4 disjoint index pairs (out of 3 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 55 treesize of output 52 [2018-03-29 21:15:39,299 INFO L267 ElimStorePlain]: Start of recursive call 13: End of recursive call: and 1 xjuncts. [2018-03-29 21:15:39,404 INFO L682 Elim1Store]: detected equality via solver [2018-03-29 21:15:39,412 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 4 select indices, 4 select index equivalence classes, 6 disjoint index pairs (out of 6 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 66 treesize of output 88 [2018-03-29 21:15:39,413 INFO L267 ElimStorePlain]: Start of recursive call 14: End of recursive call: and 2 xjuncts. [2018-03-29 21:15:39,421 INFO L682 Elim1Store]: detected equality via solver [2018-03-29 21:15:39,422 INFO L682 Elim1Store]: detected equality via solver [2018-03-29 21:15:39,434 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 4 select indices, 4 select index equivalence classes, 4 disjoint index pairs (out of 6 index pairs), introduced 2 new quantified variables, introduced 2 case distinctions, treesize of input 72 treesize of output 103 [2018-03-29 21:15:39,435 INFO L267 ElimStorePlain]: Start of recursive call 15: End of recursive call: and 3 xjuncts. [2018-03-29 21:15:39,596 INFO L700 Elim1Store]: detected not equals via solver [2018-03-29 21:15:39,598 INFO L682 Elim1Store]: detected equality via solver [2018-03-29 21:15:39,598 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 4 select indices, 4 select index equivalence classes, 3 disjoint index pairs (out of 6 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 61 treesize of output 64 [2018-03-29 21:15:39,599 INFO L267 ElimStorePlain]: Start of recursive call 16: End of recursive call: and 1 xjuncts. [2018-03-29 21:15:39,665 INFO L682 Elim1Store]: detected equality via solver [2018-03-29 21:15:39,667 INFO L682 Elim1Store]: detected equality via solver [2018-03-29 21:15:39,668 INFO L682 Elim1Store]: detected equality via solver [2018-03-29 21:15:39,668 INFO L700 Elim1Store]: detected not equals via solver [2018-03-29 21:15:39,669 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 4 select indices, 4 select index equivalence classes, 4 disjoint index pairs (out of 6 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 60 treesize of output 46 [2018-03-29 21:15:39,669 INFO L267 ElimStorePlain]: Start of recursive call 17: End of recursive call: and 1 xjuncts. [2018-03-29 21:15:39,730 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 4 select indices, 4 select index equivalence classes, 2 disjoint index pairs (out of 6 index pairs), introduced 2 new quantified variables, introduced 4 case distinctions, treesize of input 52 treesize of output 93 [2018-03-29 21:15:39,731 INFO L267 ElimStorePlain]: Start of recursive call 18: End of recursive call: and 3 xjuncts. [2018-03-29 21:15:39,762 INFO L267 ElimStorePlain]: Start of recursive call 11: 7 dim-1 vars, End of recursive call: and 2 xjuncts. [2018-03-29 21:15:39,854 INFO L267 ElimStorePlain]: Start of recursive call 10: 4 dim-1 vars, End of recursive call: and 2 xjuncts. [2018-03-29 21:15:40,147 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 83 treesize of output 77 [2018-03-29 21:15:40,147 INFO L267 ElimStorePlain]: Start of recursive call 19: End of recursive call: and 1 xjuncts. [2018-03-29 21:15:40,149 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 77 treesize of output 71 [2018-03-29 21:15:40,150 INFO L267 ElimStorePlain]: Start of recursive call 20: End of recursive call: and 1 xjuncts. [2018-03-29 21:15:40,394 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 1 new quantified variables, introduced 0 case distinctions, treesize of input 80 treesize of output 76 [2018-03-29 21:15:40,401 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 2 select indices, 2 select index equivalence classes, 1 disjoint index pairs (out of 1 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 51 treesize of output 47 [2018-03-29 21:15:40,490 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 5 select indices, 5 select index equivalence classes, 2 disjoint index pairs (out of 10 index pairs), introduced 2 new quantified variables, introduced 6 case distinctions, treesize of input 46 treesize of output 104 [2018-03-29 21:15:40,491 WARN L130 XnfTransformerHelper]: expecting exponential blowup for input size 6 [2018-03-29 21:15:40,492 INFO L267 ElimStorePlain]: Start of recursive call 23: End of recursive call: and 3 xjuncts. [2018-03-29 21:15:40,492 WARN L307 Elim1Store]: Array PQE input equivalent to true [2018-03-29 21:15:40,493 INFO L267 ElimStorePlain]: Start of recursive call 24: End of recursive call: and 1 xjuncts. [2018-03-29 21:15:40,530 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 5 select indices, 5 select index equivalence classes, 6 disjoint index pairs (out of 10 index pairs), introduced 2 new quantified variables, introduced 3 case distinctions, treesize of input 48 treesize of output 87 [2018-03-29 21:15:40,531 INFO L267 ElimStorePlain]: Start of recursive call 25: End of recursive call: and 2 xjuncts. [2018-03-29 21:15:40,561 INFO L267 ElimStorePlain]: Start of recursive call 22: 1 dim-1 vars, End of recursive call: and 2 xjuncts. [2018-03-29 21:15:40,579 INFO L267 ElimStorePlain]: Start of recursive call 21: 1 dim-1 vars, End of recursive call: and 2 xjuncts. [2018-03-29 21:15:40,583 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 1 new quantified variables, introduced 0 case distinctions, treesize of input 74 treesize of output 70 [2018-03-29 21:15:40,589 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 2 select indices, 2 select index equivalence classes, 1 disjoint index pairs (out of 1 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 51 treesize of output 47 [2018-03-29 21:15:40,604 WARN L307 Elim1Store]: Array PQE input equivalent to true [2018-03-29 21:15:40,604 INFO L267 ElimStorePlain]: Start of recursive call 28: End of recursive call: and 1 xjuncts. [2018-03-29 21:15:40,627 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 5 select indices, 5 select index equivalence classes, 6 disjoint index pairs (out of 10 index pairs), introduced 2 new quantified variables, introduced 3 case distinctions, treesize of input 48 treesize of output 87 [2018-03-29 21:15:40,628 INFO L267 ElimStorePlain]: Start of recursive call 29: End of recursive call: and 2 xjuncts. [2018-03-29 21:15:40,633 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 4 select indices, 4 select index equivalence classes, 4 disjoint index pairs (out of 6 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 40 treesize of output 33 [2018-03-29 21:15:40,633 INFO L267 ElimStorePlain]: Start of recursive call 30: End of recursive call: and 1 xjuncts. [2018-03-29 21:15:40,646 INFO L267 ElimStorePlain]: Start of recursive call 27: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-03-29 21:15:40,659 INFO L267 ElimStorePlain]: Start of recursive call 26: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-03-29 21:15:40,920 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 1 new quantified variables, introduced 0 case distinctions, treesize of input 61 treesize of output 57 [2018-03-29 21:15:40,925 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 51 treesize of output 47 [2018-03-29 21:15:40,943 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 4 select indices, 4 select index equivalence classes, 4 disjoint index pairs (out of 6 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 40 treesize of output 33 [2018-03-29 21:15:40,944 INFO L267 ElimStorePlain]: Start of recursive call 33: End of recursive call: and 1 xjuncts. [2018-03-29 21:15:40,966 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 5 select indices, 5 select index equivalence classes, 6 disjoint index pairs (out of 10 index pairs), introduced 2 new quantified variables, introduced 3 case distinctions, treesize of input 48 treesize of output 87 [2018-03-29 21:15:40,967 INFO L267 ElimStorePlain]: Start of recursive call 34: End of recursive call: and 2 xjuncts. [2018-03-29 21:15:40,968 WARN L307 Elim1Store]: Array PQE input equivalent to true [2018-03-29 21:15:40,969 INFO L267 ElimStorePlain]: Start of recursive call 35: End of recursive call: and 1 xjuncts. [2018-03-29 21:15:40,980 INFO L267 ElimStorePlain]: Start of recursive call 32: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-03-29 21:15:40,986 INFO L267 ElimStorePlain]: Start of recursive call 31: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-03-29 21:15:41,023 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 3 select indices, 3 select index equivalence classes, 2 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 6 case distinctions, treesize of input 69 treesize of output 131 [2018-03-29 21:15:41,030 INFO L682 Elim1Store]: detected equality via solver [2018-03-29 21:15:41,034 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 2 select indices, 2 select index equivalence classes, 4 disjoint index pairs (out of 1 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 87 treesize of output 90 [2018-03-29 21:15:41,064 INFO L682 Elim1Store]: detected equality via solver [2018-03-29 21:15:41,066 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 4 select indices, 4 select index equivalence classes, 6 disjoint index pairs (out of 6 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 34 treesize of output 34 [2018-03-29 21:15:41,066 INFO L267 ElimStorePlain]: Start of recursive call 38: End of recursive call: and 1 xjuncts. [2018-03-29 21:15:41,075 INFO L267 ElimStorePlain]: Start of recursive call 37: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-03-29 21:15:41,362 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 4 select indices, 4 select index equivalence classes, 4 disjoint index pairs (out of 6 index pairs), introduced 3 new quantified variables, introduced 6 case distinctions, treesize of input 78 treesize of output 148 [2018-03-29 21:15:41,656 WARN L151 SmtUtils]: Spent 286ms on a formula simplification. DAG size of input: 249 DAG size of output 137 [2018-03-29 21:15:41,659 INFO L682 Elim1Store]: detected equality via solver [2018-03-29 21:15:41,661 INFO L682 Elim1Store]: detected equality via solver [2018-03-29 21:15:41,661 INFO L700 Elim1Store]: detected not equals via solver [2018-03-29 21:15:41,662 INFO L682 Elim1Store]: detected equality via solver [2018-03-29 21:15:41,662 INFO L682 Elim1Store]: detected equality via solver [2018-03-29 21:15:41,663 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 5 select indices, 5 select index equivalence classes, 6 disjoint index pairs (out of 10 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 68 treesize of output 91 [2018-03-29 21:15:41,663 INFO L267 ElimStorePlain]: Start of recursive call 40: End of recursive call: and 1 xjuncts. [2018-03-29 21:15:41,797 INFO L682 Elim1Store]: detected equality via solver [2018-03-29 21:15:41,798 INFO L682 Elim1Store]: detected equality via solver [2018-03-29 21:15:41,812 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 5 select indices, 5 select index equivalence classes, 6 disjoint index pairs (out of 10 index pairs), introduced 2 new quantified variables, introduced 2 case distinctions, treesize of input 80 treesize of output 118 [2018-03-29 21:15:41,813 INFO L267 ElimStorePlain]: Start of recursive call 41: End of recursive call: and 3 xjuncts. [2018-03-29 21:15:41,820 INFO L682 Elim1Store]: detected equality via solver [2018-03-29 21:15:41,830 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 5 select indices, 5 select index equivalence classes, 8 disjoint index pairs (out of 10 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 69 treesize of output 98 [2018-03-29 21:15:41,831 INFO L267 ElimStorePlain]: Start of recursive call 42: End of recursive call: and 2 xjuncts. [2018-03-29 21:15:41,962 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 5 select indices, 5 select index equivalence classes, 6 disjoint index pairs (out of 10 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 55 treesize of output 61 [2018-03-29 21:15:41,962 INFO L267 ElimStorePlain]: Start of recursive call 43: End of recursive call: and 1 xjuncts. [2018-03-29 21:15:42,022 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 5 select indices, 5 select index equivalence classes, 6 disjoint index pairs (out of 10 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 54 treesize of output 54 [2018-03-29 21:15:42,022 INFO L267 ElimStorePlain]: Start of recursive call 44: End of recursive call: and 1 xjuncts. [2018-03-29 21:15:42,102 INFO L267 ElimStorePlain]: Start of recursive call 39: 7 dim-1 vars, End of recursive call: and 2 xjuncts. [2018-03-29 21:15:42,177 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 3 select indices, 3 select index equivalence classes, 0 disjoint index pairs (out of 3 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 62 treesize of output 58 [2018-03-29 21:15:42,202 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 5 select indices, 5 select index equivalence classes, 5 disjoint index pairs (out of 10 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 52 treesize of output 37 [2018-03-29 21:15:42,202 INFO L267 ElimStorePlain]: Start of recursive call 46: End of recursive call: and 1 xjuncts. [2018-03-29 21:15:42,209 INFO L267 ElimStorePlain]: Start of recursive call 45: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-03-29 21:15:42,377 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 61 treesize of output 57 [2018-03-29 21:15:42,400 INFO L682 Elim1Store]: detected equality via solver [2018-03-29 21:15:42,402 INFO L682 Elim1Store]: detected equality via solver [2018-03-29 21:15:42,403 INFO L700 Elim1Store]: detected not equals via solver [2018-03-29 21:15:42,404 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 5 select indices, 5 select index equivalence classes, 4 disjoint index pairs (out of 10 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 41 treesize of output 44 [2018-03-29 21:15:42,404 INFO L267 ElimStorePlain]: Start of recursive call 48: End of recursive call: and 1 xjuncts. [2018-03-29 21:15:42,412 INFO L267 ElimStorePlain]: Start of recursive call 47: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-03-29 21:15:42,514 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 51 treesize of output 47 [2018-03-29 21:15:42,546 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 5 select indices, 5 select index equivalence classes, 6 disjoint index pairs (out of 10 index pairs), introduced 2 new quantified variables, introduced 3 case distinctions, treesize of input 48 treesize of output 87 [2018-03-29 21:15:42,547 INFO L267 ElimStorePlain]: Start of recursive call 50: End of recursive call: and 2 xjuncts. [2018-03-29 21:15:42,582 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 5 select indices, 5 select index equivalence classes, 2 disjoint index pairs (out of 10 index pairs), introduced 2 new quantified variables, introduced 6 case distinctions, treesize of input 46 treesize of output 104 [2018-03-29 21:15:42,582 WARN L130 XnfTransformerHelper]: expecting exponential blowup for input size 6 [2018-03-29 21:15:42,583 INFO L267 ElimStorePlain]: Start of recursive call 51: End of recursive call: and 3 xjuncts. [2018-03-29 21:15:42,587 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 4 select indices, 4 select index equivalence classes, 4 disjoint index pairs (out of 6 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 40 treesize of output 33 [2018-03-29 21:15:42,588 INFO L267 ElimStorePlain]: Start of recursive call 52: End of recursive call: and 1 xjuncts. [2018-03-29 21:15:42,616 INFO L267 ElimStorePlain]: Start of recursive call 49: 1 dim-1 vars, End of recursive call: and 3 xjuncts. [2018-03-29 21:15:42,656 INFO L267 ElimStorePlain]: Start of recursive call 36: 13 dim-1 vars, End of recursive call: and 2 xjuncts. [2018-03-29 21:15:42,817 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 3 select indices, 3 select index equivalence classes, 2 disjoint index pairs (out of 3 index pairs), introduced 2 new quantified variables, introduced 2 case distinctions, treesize of input 80 treesize of output 96 [2018-03-29 21:15:42,818 INFO L267 ElimStorePlain]: Start of recursive call 53: End of recursive call: and 3 xjuncts. [2018-03-29 21:15:42,914 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 60 treesize of output 56 [2018-03-29 21:15:42,917 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 1 new quantified variables, introduced 0 case distinctions, treesize of input 45 treesize of output 41 [2018-03-29 21:15:42,928 WARN L307 Elim1Store]: Array PQE input equivalent to true [2018-03-29 21:15:42,928 INFO L267 ElimStorePlain]: Start of recursive call 56: End of recursive call: and 1 xjuncts. [2018-03-29 21:15:42,942 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 4 select indices, 4 select index equivalence classes, 5 disjoint index pairs (out of 6 index pairs), introduced 2 new quantified variables, introduced 2 case distinctions, treesize of input 42 treesize of output 69 [2018-03-29 21:15:42,943 INFO L267 ElimStorePlain]: Start of recursive call 57: End of recursive call: and 2 xjuncts. [2018-03-29 21:15:42,966 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 4 select indices, 4 select index equivalence classes, 2 disjoint index pairs (out of 6 index pairs), introduced 2 new quantified variables, introduced 4 case distinctions, treesize of input 40 treesize of output 81 [2018-03-29 21:15:42,967 INFO L267 ElimStorePlain]: Start of recursive call 58: End of recursive call: and 3 xjuncts. [2018-03-29 21:15:42,986 INFO L267 ElimStorePlain]: Start of recursive call 55: 1 dim-1 vars, End of recursive call: and 2 xjuncts. [2018-03-29 21:15:43,001 INFO L267 ElimStorePlain]: Start of recursive call 54: 1 dim-1 vars, End of recursive call: and 2 xjuncts. [2018-03-29 21:15:43,003 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 60 treesize of output 56 [2018-03-29 21:15:43,006 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 1 new quantified variables, introduced 0 case distinctions, treesize of input 45 treesize of output 41 [2018-03-29 21:15:43,020 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 3 select indices, 3 select index equivalence classes, 3 disjoint index pairs (out of 3 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 34 treesize of output 28 [2018-03-29 21:15:43,020 INFO L267 ElimStorePlain]: Start of recursive call 61: End of recursive call: and 1 xjuncts. [2018-03-29 21:15:43,034 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 4 select indices, 4 select index equivalence classes, 5 disjoint index pairs (out of 6 index pairs), introduced 2 new quantified variables, introduced 2 case distinctions, treesize of input 42 treesize of output 69 [2018-03-29 21:15:43,034 INFO L267 ElimStorePlain]: Start of recursive call 62: End of recursive call: and 2 xjuncts. [2018-03-29 21:15:43,058 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 4 select indices, 4 select index equivalence classes, 2 disjoint index pairs (out of 6 index pairs), introduced 2 new quantified variables, introduced 4 case distinctions, treesize of input 40 treesize of output 81 [2018-03-29 21:15:43,059 INFO L267 ElimStorePlain]: Start of recursive call 63: End of recursive call: and 3 xjuncts. [2018-03-29 21:15:43,082 INFO L267 ElimStorePlain]: Start of recursive call 60: 1 dim-1 vars, End of recursive call: and 3 xjuncts. [2018-03-29 21:15:43,102 INFO L267 ElimStorePlain]: Start of recursive call 59: 1 dim-1 vars, End of recursive call: and 2 xjuncts. [2018-03-29 21:15:43,181 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 1 new quantified variables, introduced 0 case distinctions, treesize of input 65 treesize of output 61 [2018-03-29 21:15:43,181 INFO L267 ElimStorePlain]: Start of recursive call 64: End of recursive call: and 1 xjuncts. [2018-03-29 21:15:43,251 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 58 treesize of output 54 [2018-03-29 21:15:43,255 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 1 new quantified variables, introduced 0 case distinctions, treesize of input 45 treesize of output 41 [2018-03-29 21:15:43,269 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 3 select indices, 3 select index equivalence classes, 3 disjoint index pairs (out of 3 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 34 treesize of output 28 [2018-03-29 21:15:43,269 INFO L267 ElimStorePlain]: Start of recursive call 67: End of recursive call: and 1 xjuncts. [2018-03-29 21:15:43,326 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 4 select indices, 4 select index equivalence classes, 2 disjoint index pairs (out of 6 index pairs), introduced 2 new quantified variables, introduced 4 case distinctions, treesize of input 40 treesize of output 81 [2018-03-29 21:15:43,327 INFO L267 ElimStorePlain]: Start of recursive call 68: End of recursive call: and 3 xjuncts. [2018-03-29 21:15:43,344 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 4 select indices, 4 select index equivalence classes, 5 disjoint index pairs (out of 6 index pairs), introduced 2 new quantified variables, introduced 2 case distinctions, treesize of input 42 treesize of output 69 [2018-03-29 21:15:43,345 INFO L267 ElimStorePlain]: Start of recursive call 69: End of recursive call: and 2 xjuncts. [2018-03-29 21:15:43,370 INFO L267 ElimStorePlain]: Start of recursive call 66: 1 dim-1 vars, End of recursive call: and 3 xjuncts. [2018-03-29 21:15:43,392 INFO L267 ElimStorePlain]: Start of recursive call 65: 1 dim-1 vars, End of recursive call: and 2 xjuncts. [2018-03-29 21:15:43,531 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 41 treesize of output 35 [2018-03-29 21:15:43,532 INFO L267 ElimStorePlain]: Start of recursive call 70: End of recursive call: and 1 xjuncts. [2018-03-29 21:15:43,534 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 49 treesize of output 43 [2018-03-29 21:15:43,534 INFO L267 ElimStorePlain]: Start of recursive call 71: End of recursive call: and 1 xjuncts. [2018-03-29 21:15:43,709 INFO L267 ElimStorePlain]: Start of recursive call 4: 13 dim-1 vars, End of recursive call: and 5 xjuncts. [2018-03-29 21:15:43,715 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 2 select indices, 2 select index equivalence classes, 1 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 36 treesize of output 38 [2018-03-29 21:15:43,738 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 2 new quantified variables, introduced 0 case distinctions, treesize of input 32 treesize of output 31 [2018-03-29 21:15:43,738 INFO L267 ElimStorePlain]: Start of recursive call 73: End of recursive call: and 1 xjuncts. [2018-03-29 21:15:43,740 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 2 select indices, 2 select index equivalence classes, 3 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 34 treesize of output 29 [2018-03-29 21:15:43,740 INFO L267 ElimStorePlain]: Start of recursive call 74: End of recursive call: and 1 xjuncts. [2018-03-29 21:15:43,741 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 1 new quantified variables, introduced 0 case distinctions, treesize of input 26 treesize of output 22 [2018-03-29 21:15:43,742 INFO L267 ElimStorePlain]: Start of recursive call 75: End of recursive call: and 1 xjuncts. [2018-03-29 21:15:43,777 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 3 select indices, 3 select index equivalence classes, 2 disjoint index pairs (out of 3 index pairs), introduced 2 new quantified variables, introduced 2 case distinctions, treesize of input 29 treesize of output 45 [2018-03-29 21:15:43,778 INFO L267 ElimStorePlain]: Start of recursive call 76: End of recursive call: and 3 xjuncts. [2018-03-29 21:15:43,779 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 1 new quantified variables, introduced 0 case distinctions, treesize of input 23 treesize of output 18 [2018-03-29 21:15:43,779 INFO L267 ElimStorePlain]: Start of recursive call 77: End of recursive call: and 1 xjuncts. [2018-03-29 21:15:43,809 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 23 treesize of output 17 [2018-03-29 21:15:43,809 INFO L267 ElimStorePlain]: Start of recursive call 78: End of recursive call: and 1 xjuncts. [2018-03-29 21:15:43,822 INFO L267 ElimStorePlain]: Start of recursive call 72: 3 dim-1 vars, End of recursive call: and 3 xjuncts. [2018-03-29 21:15:43,829 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 65 treesize of output 67 [2018-03-29 21:15:43,831 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 62 treesize of output 58 [2018-03-29 21:15:43,834 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 1 new quantified variables, introduced 0 case distinctions, treesize of input 45 treesize of output 47 [2018-03-29 21:15:43,849 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 3 select indices, 3 select index equivalence classes, 3 disjoint index pairs (out of 3 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 34 treesize of output 28 [2018-03-29 21:15:43,849 INFO L267 ElimStorePlain]: Start of recursive call 82: End of recursive call: and 1 xjuncts. [2018-03-29 21:15:43,863 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 4 select indices, 4 select index equivalence classes, 5 disjoint index pairs (out of 6 index pairs), introduced 2 new quantified variables, introduced 2 case distinctions, treesize of input 42 treesize of output 69 [2018-03-29 21:15:43,864 INFO L267 ElimStorePlain]: Start of recursive call 83: End of recursive call: and 2 xjuncts. [2018-03-29 21:15:43,888 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 4 select indices, 4 select index equivalence classes, 2 disjoint index pairs (out of 6 index pairs), introduced 2 new quantified variables, introduced 4 case distinctions, treesize of input 40 treesize of output 81 [2018-03-29 21:15:43,889 INFO L267 ElimStorePlain]: Start of recursive call 84: End of recursive call: and 3 xjuncts. [2018-03-29 21:15:43,915 INFO L267 ElimStorePlain]: Start of recursive call 81: 1 dim-1 vars, End of recursive call: and 3 xjuncts. [2018-03-29 21:15:43,936 INFO L267 ElimStorePlain]: Start of recursive call 80: 1 dim-1 vars, End of recursive call: and 2 xjuncts. [2018-03-29 21:15:43,968 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 1 new quantified variables, introduced 0 case distinctions, treesize of input 59 treesize of output 55 [2018-03-29 21:15:43,973 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 51 treesize of output 47 [2018-03-29 21:15:44,010 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 5 select indices, 5 select index equivalence classes, 6 disjoint index pairs (out of 10 index pairs), introduced 2 new quantified variables, introduced 3 case distinctions, treesize of input 48 treesize of output 87 [2018-03-29 21:15:44,011 INFO L267 ElimStorePlain]: Start of recursive call 87: End of recursive call: and 2 xjuncts. [2018-03-29 21:15:44,016 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 4 select indices, 4 select index equivalence classes, 4 disjoint index pairs (out of 6 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 40 treesize of output 33 [2018-03-29 21:15:44,017 INFO L267 ElimStorePlain]: Start of recursive call 88: End of recursive call: and 1 xjuncts. [2018-03-29 21:15:44,052 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 5 select indices, 5 select index equivalence classes, 2 disjoint index pairs (out of 10 index pairs), introduced 2 new quantified variables, introduced 6 case distinctions, treesize of input 46 treesize of output 104 [2018-03-29 21:15:44,053 WARN L130 XnfTransformerHelper]: expecting exponential blowup for input size 6 [2018-03-29 21:15:44,053 INFO L267 ElimStorePlain]: Start of recursive call 89: End of recursive call: and 3 xjuncts. [2018-03-29 21:15:44,084 INFO L267 ElimStorePlain]: Start of recursive call 86: 1 dim-1 vars, End of recursive call: and 3 xjuncts. [2018-03-29 21:15:44,106 INFO L267 ElimStorePlain]: Start of recursive call 85: 1 dim-1 vars, End of recursive call: and 2 xjuncts. [2018-03-29 21:15:44,157 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 53 treesize of output 47 [2018-03-29 21:15:44,157 INFO L267 ElimStorePlain]: Start of recursive call 90: End of recursive call: and 1 xjuncts. [2018-03-29 21:15:44,159 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 42 treesize of output 36 [2018-03-29 21:15:44,160 INFO L267 ElimStorePlain]: Start of recursive call 91: End of recursive call: and 1 xjuncts. [2018-03-29 21:15:44,198 INFO L267 ElimStorePlain]: Start of recursive call 79: 3 dim-1 vars, End of recursive call: and 4 xjuncts. [2018-03-29 21:15:44,255 INFO L267 ElimStorePlain]: Start of recursive call 2: 1 dim-1 vars, 1 dim-2 vars, End of recursive call: and 7 xjuncts. [2018-03-29 21:15:44,307 INFO L267 ElimStorePlain]: Start of recursive call 1: 3 dim-0 vars, 1 dim-2 vars, End of recursive call: and 7 xjuncts. [2018-03-29 21:15:44,307 INFO L202 ElimStorePlain]: Needed 91 recursive calls to eliminate 4 variables, input treesize:98, output treesize:146 [2018-03-29 21:15:44,515 INFO L134 CoverageAnalysis]: Checked inductivity of 15 backedges. 0 proven. 10 refuted. 5 times theorem prover too weak. 0 trivial. 0 not checked. [2018-03-29 21:15:44,537 INFO L320 seRefinementStrategy]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2018-03-29 21:15:44,537 INFO L335 seRefinementStrategy]: Number of different interpolants: perfect sequences [] imperfect sequences [20, 19] total 38 [2018-03-29 21:15:44,537 INFO L442 AbstractCegarLoop]: Interpolant automaton has 38 states [2018-03-29 21:15:44,537 INFO L132 InterpolantAutomaton]: Constructing interpolant automaton starting with 38 interpolants. [2018-03-29 21:15:44,538 INFO L133 InterpolantAutomaton]: CoverageRelationStatistics Valid=246, Invalid=1133, Unknown=27, NotChecked=0, Total=1406 [2018-03-29 21:15:44,538 INFO L87 Difference]: Start difference. First operand 188 states and 195 transitions. Second operand 38 states. [2018-03-29 21:16:03,986 WARN L148 SmtUtils]: Spent 12310ms on a formula simplification that was a NOOP. DAG size: 59 [2018-03-29 21:16:06,924 WARN L151 SmtUtils]: Spent 120ms on a formula simplification. DAG size of input: 58 DAG size of output 40 [2018-03-29 21:16:18,955 WARN L148 SmtUtils]: Spent 1475ms on a formula simplification that was a NOOP. DAG size: 47 [2018-03-29 21:16:27,895 WARN L151 SmtUtils]: Spent 2366ms on a formula simplification. DAG size of input: 46 DAG size of output 37 [2018-03-29 21:16:34,568 WARN L151 SmtUtils]: Spent 151ms on a formula simplification. DAG size of input: 99 DAG size of output 44 [2018-03-29 21:16:34,948 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-03-29 21:16:34,948 INFO L93 Difference]: Finished difference Result 212 states and 218 transitions. [2018-03-29 21:16:34,949 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 32 states. [2018-03-29 21:16:34,949 INFO L78 Accepts]: Start accepts. Automaton has 38 states. Word has length 66 [2018-03-29 21:16:34,949 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-03-29 21:16:34,950 INFO L225 Difference]: With dead ends: 212 [2018-03-29 21:16:34,950 INFO L226 Difference]: Without dead ends: 200 [2018-03-29 21:16:34,951 INFO L567 BasicCegarLoop]: 0 DeclaredPredicates, 158 GetRequests, 96 SyntacticMatches, 0 SemanticMatches, 62 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 850 ImplicationChecksByTransitivity, 40.4s TimeCoverageRelationStatistics Valid=793, Invalid=3170, Unknown=69, NotChecked=0, Total=4032 [2018-03-29 21:16:34,951 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 200 states. [2018-03-29 21:16:34,963 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 200 to 189. [2018-03-29 21:16:34,963 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 189 states. [2018-03-29 21:16:34,964 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 189 states to 189 states and 196 transitions. [2018-03-29 21:16:34,964 INFO L78 Accepts]: Start accepts. Automaton has 189 states and 196 transitions. Word has length 66 [2018-03-29 21:16:34,964 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-03-29 21:16:34,964 INFO L459 AbstractCegarLoop]: Abstraction has 189 states and 196 transitions. [2018-03-29 21:16:34,964 INFO L460 AbstractCegarLoop]: Interpolant automaton has 38 states. [2018-03-29 21:16:34,965 INFO L276 IsEmpty]: Start isEmpty. Operand 189 states and 196 transitions. [2018-03-29 21:16:34,965 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 68 [2018-03-29 21:16:34,965 INFO L347 BasicCegarLoop]: Found error trace [2018-03-29 21:16:34,965 INFO L355 BasicCegarLoop]: trace histogram [4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-03-29 21:16:34,965 INFO L408 AbstractCegarLoop]: === Iteration 22 === [mainErr5RequiresViolation, mainErr1RequiresViolation, mainErr6AssertViolationMEMORY_FREE, mainErr13AssertViolationMEMORY_FREE, mainErr10AssertViolationMEMORY_FREE, mainErr11AssertViolationMEMORY_FREE, mainErr0RequiresViolation, mainErr14EnsuresViolationMEMORY_LEAK, mainErr3RequiresViolation, mainErr7AssertViolationMEMORY_FREE, mainErr9AssertViolationMEMORY_FREE, mainErr2RequiresViolation, mainErr4RequiresViolation, mainErr8AssertViolationMEMORY_FREE, mainErr12AssertViolationMEMORY_FREE, __U_MULTI_f___________true_valid_memsafety_i__fooErr1RequiresViolation, __U_MULTI_f___________true_valid_memsafety_i__fooErr3RequiresViolation, __U_MULTI_f___________true_valid_memsafety_i__fooErr2RequiresViolation, __U_MULTI_f___________true_valid_memsafety_i__fooErr0RequiresViolation]=== [2018-03-29 21:16:34,965 INFO L82 PathProgramCache]: Analyzing trace with hash 250629763, now seen corresponding path program 5 times No working directory specified, using /storage/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 23 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 23 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2018-03-29 21:16:34,981 INFO L68 tionRefinementEngine]: Using refinement strategy FixedRefinementStrategy [2018-03-29 21:16:35,003 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-03-29 21:16:35,005 INFO L270 TraceCheckSpWp]: Computing forward predicates... [2018-03-29 21:16:35,026 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 [2018-03-29 21:16:35,027 INFO L267 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2018-03-29 21:16:35,030 INFO L267 ElimStorePlain]: Start of recursive call 1: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-03-29 21:16:35,030 INFO L202 ElimStorePlain]: Needed 2 recursive calls to eliminate 1 variables, input treesize:15, output treesize:14 [2018-03-29 21:16:35,056 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 [2018-03-29 21:16:35,056 INFO L267 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2018-03-29 21:16:35,063 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. [2018-03-29 21:16:35,064 INFO L202 ElimStorePlain]: Needed 2 recursive calls to eliminate 3 variables, input treesize:22, output treesize:21 [2018-03-29 21:16:35,214 INFO L134 CoverageAnalysis]: Checked inductivity of 57 backedges. 30 proven. 27 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-03-29 21:16:35,214 INFO L314 TraceCheckSpWp]: Computing backward predicates... [2018-03-29 21:16:35,559 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 [2018-03-29 21:16:35,570 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 14 treesize of output 5 [2018-03-29 21:16:35,571 INFO L267 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 1 xjuncts. [2018-03-29 21:16:35,572 INFO L267 ElimStorePlain]: Start of recursive call 2: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-03-29 21:16:35,572 INFO L267 ElimStorePlain]: Start of recursive call 1: 2 dim-0 vars, 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-03-29 21:16:35,573 INFO L202 ElimStorePlain]: Needed 3 recursive calls to eliminate 3 variables, input treesize:15, output treesize:5 [2018-03-29 21:16:35,619 INFO L134 CoverageAnalysis]: Checked inductivity of 57 backedges. 30 proven. 27 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-03-29 21:16:35,641 INFO L320 seRefinementStrategy]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2018-03-29 21:16:35,641 INFO L335 seRefinementStrategy]: Number of different interpolants: perfect sequences [] imperfect sequences [18, 18] total 28 [2018-03-29 21:16:35,641 INFO L442 AbstractCegarLoop]: Interpolant automaton has 29 states [2018-03-29 21:16:35,641 INFO L132 InterpolantAutomaton]: Constructing interpolant automaton starting with 29 interpolants. [2018-03-29 21:16:35,641 INFO L133 InterpolantAutomaton]: CoverageRelationStatistics Valid=110, Invalid=702, Unknown=0, NotChecked=0, Total=812 [2018-03-29 21:16:35,642 INFO L87 Difference]: Start difference. First operand 189 states and 196 transitions. Second operand 29 states. [2018-03-29 21:16:36,855 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-03-29 21:16:36,856 INFO L93 Difference]: Finished difference Result 276 states and 283 transitions. [2018-03-29 21:16:36,856 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 28 states. [2018-03-29 21:16:36,856 INFO L78 Accepts]: Start accepts. Automaton has 29 states. Word has length 67 [2018-03-29 21:16:36,857 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-03-29 21:16:36,857 INFO L225 Difference]: With dead ends: 276 [2018-03-29 21:16:36,857 INFO L226 Difference]: Without dead ends: 238 [2018-03-29 21:16:36,858 INFO L567 BasicCegarLoop]: 0 DeclaredPredicates, 153 GetRequests, 99 SyntacticMatches, 7 SemanticMatches, 47 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 576 ImplicationChecksByTransitivity, 1.0s TimeCoverageRelationStatistics Valid=390, Invalid=1962, Unknown=0, NotChecked=0, Total=2352 [2018-03-29 21:16:36,858 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 238 states. [2018-03-29 21:16:36,870 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 238 to 195. [2018-03-29 21:16:36,870 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 195 states. [2018-03-29 21:16:36,871 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 195 states to 195 states and 202 transitions. [2018-03-29 21:16:36,871 INFO L78 Accepts]: Start accepts. Automaton has 195 states and 202 transitions. Word has length 67 [2018-03-29 21:16:36,871 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-03-29 21:16:36,871 INFO L459 AbstractCegarLoop]: Abstraction has 195 states and 202 transitions. [2018-03-29 21:16:36,871 INFO L460 AbstractCegarLoop]: Interpolant automaton has 29 states. [2018-03-29 21:16:36,871 INFO L276 IsEmpty]: Start isEmpty. Operand 195 states and 202 transitions. [2018-03-29 21:16:36,871 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 70 [2018-03-29 21:16:36,872 INFO L347 BasicCegarLoop]: Found error trace [2018-03-29 21:16:36,872 INFO L355 BasicCegarLoop]: trace histogram [4, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 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] [2018-03-29 21:16:36,872 INFO L408 AbstractCegarLoop]: === Iteration 23 === [mainErr5RequiresViolation, mainErr1RequiresViolation, mainErr6AssertViolationMEMORY_FREE, mainErr13AssertViolationMEMORY_FREE, mainErr10AssertViolationMEMORY_FREE, mainErr11AssertViolationMEMORY_FREE, mainErr0RequiresViolation, mainErr14EnsuresViolationMEMORY_LEAK, mainErr3RequiresViolation, mainErr7AssertViolationMEMORY_FREE, mainErr9AssertViolationMEMORY_FREE, mainErr2RequiresViolation, mainErr4RequiresViolation, mainErr8AssertViolationMEMORY_FREE, mainErr12AssertViolationMEMORY_FREE, __U_MULTI_f___________true_valid_memsafety_i__fooErr1RequiresViolation, __U_MULTI_f___________true_valid_memsafety_i__fooErr3RequiresViolation, __U_MULTI_f___________true_valid_memsafety_i__fooErr2RequiresViolation, __U_MULTI_f___________true_valid_memsafety_i__fooErr0RequiresViolation]=== [2018-03-29 21:16:36,872 INFO L82 PathProgramCache]: Analyzing trace with hash -2067849475, now seen corresponding path program 2 times No working directory specified, using /storage/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 24 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 24 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2018-03-29 21:16:36,878 INFO L68 tionRefinementEngine]: Using refinement strategy FixedRefinementStrategy [2018-03-29 21:16:36,902 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-03-29 21:16:36,905 INFO L270 TraceCheckSpWp]: Computing forward predicates... [2018-03-29 21:16:36,937 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 [2018-03-29 21:16:36,937 INFO L267 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2018-03-29 21:16:36,941 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. [2018-03-29 21:16:36,942 INFO L202 ElimStorePlain]: Needed 2 recursive calls to eliminate 2 variables, input treesize:15, output treesize:14 [2018-03-29 21:16:37,112 INFO L134 CoverageAnalysis]: Checked inductivity of 40 backedges. 13 proven. 3 refuted. 0 times theorem prover too weak. 24 trivial. 0 not checked. [2018-03-29 21:16:37,113 INFO L314 TraceCheckSpWp]: Computing backward predicates... [2018-03-29 21:16:37,263 INFO L134 CoverageAnalysis]: Checked inductivity of 40 backedges. 13 proven. 3 refuted. 0 times theorem prover too weak. 24 trivial. 0 not checked. [2018-03-29 21:16:37,284 INFO L320 seRefinementStrategy]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2018-03-29 21:16:37,284 INFO L335 seRefinementStrategy]: Number of different interpolants: perfect sequences [] imperfect sequences [14, 14] total 22 [2018-03-29 21:16:37,285 INFO L442 AbstractCegarLoop]: Interpolant automaton has 23 states [2018-03-29 21:16:37,285 INFO L132 InterpolantAutomaton]: Constructing interpolant automaton starting with 23 interpolants. [2018-03-29 21:16:37,285 INFO L133 InterpolantAutomaton]: CoverageRelationStatistics Valid=67, Invalid=439, Unknown=0, NotChecked=0, Total=506 [2018-03-29 21:16:37,285 INFO L87 Difference]: Start difference. First operand 195 states and 202 transitions. Second operand 23 states. [2018-03-29 21:16:38,009 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-03-29 21:16:38,009 INFO L93 Difference]: Finished difference Result 251 states and 260 transitions. [2018-03-29 21:16:38,010 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 22 states. [2018-03-29 21:16:38,010 INFO L78 Accepts]: Start accepts. Automaton has 23 states. Word has length 69 [2018-03-29 21:16:38,010 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-03-29 21:16:38,011 INFO L225 Difference]: With dead ends: 251 [2018-03-29 21:16:38,011 INFO L226 Difference]: Without dead ends: 222 [2018-03-29 21:16:38,011 INFO L567 BasicCegarLoop]: 0 DeclaredPredicates, 154 GetRequests, 111 SyntacticMatches, 5 SemanticMatches, 38 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 267 ImplicationChecksByTransitivity, 0.6s TimeCoverageRelationStatistics Valid=251, Invalid=1309, Unknown=0, NotChecked=0, Total=1560 [2018-03-29 21:16:38,012 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 222 states. [2018-03-29 21:16:38,024 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 222 to 207. [2018-03-29 21:16:38,024 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 207 states. [2018-03-29 21:16:38,024 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 207 states to 207 states and 214 transitions. [2018-03-29 21:16:38,024 INFO L78 Accepts]: Start accepts. Automaton has 207 states and 214 transitions. Word has length 69 [2018-03-29 21:16:38,025 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-03-29 21:16:38,025 INFO L459 AbstractCegarLoop]: Abstraction has 207 states and 214 transitions. [2018-03-29 21:16:38,025 INFO L460 AbstractCegarLoop]: Interpolant automaton has 23 states. [2018-03-29 21:16:38,025 INFO L276 IsEmpty]: Start isEmpty. Operand 207 states and 214 transitions. [2018-03-29 21:16:38,025 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 71 [2018-03-29 21:16:38,025 INFO L347 BasicCegarLoop]: Found error trace [2018-03-29 21:16:38,025 INFO L355 BasicCegarLoop]: trace histogram [3, 2, 2, 2, 2, 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-03-29 21:16:38,025 INFO L408 AbstractCegarLoop]: === Iteration 24 === [mainErr5RequiresViolation, mainErr1RequiresViolation, mainErr6AssertViolationMEMORY_FREE, mainErr13AssertViolationMEMORY_FREE, mainErr10AssertViolationMEMORY_FREE, mainErr11AssertViolationMEMORY_FREE, mainErr0RequiresViolation, mainErr14EnsuresViolationMEMORY_LEAK, mainErr3RequiresViolation, mainErr7AssertViolationMEMORY_FREE, mainErr9AssertViolationMEMORY_FREE, mainErr2RequiresViolation, mainErr4RequiresViolation, mainErr8AssertViolationMEMORY_FREE, mainErr12AssertViolationMEMORY_FREE, __U_MULTI_f___________true_valid_memsafety_i__fooErr1RequiresViolation, __U_MULTI_f___________true_valid_memsafety_i__fooErr3RequiresViolation, __U_MULTI_f___________true_valid_memsafety_i__fooErr2RequiresViolation, __U_MULTI_f___________true_valid_memsafety_i__fooErr0RequiresViolation]=== [2018-03-29 21:16:38,026 INFO L82 PathProgramCache]: Analyzing trace with hash -1806048107, now seen corresponding path program 1 times No working directory specified, using /storage/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 25 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 25 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2018-03-29 21:16:38,031 INFO L68 tionRefinementEngine]: Using refinement strategy FixedRefinementStrategy [2018-03-29 21:16:38,050 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-03-29 21:16:38,052 INFO L270 TraceCheckSpWp]: Computing forward predicates... [2018-03-29 21:16:38,098 INFO L700 Elim1Store]: detected not equals via solver [2018-03-29 21:16:38,099 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 2 select indices, 2 select index equivalence classes, 2 disjoint index pairs (out of 1 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 20 treesize of output 27 [2018-03-29 21:16:38,101 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 2 select indices, 2 select index equivalence classes, 2 disjoint index pairs (out of 1 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 23 treesize of output 15 [2018-03-29 21:16:38,101 INFO L267 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 1 xjuncts. [2018-03-29 21:16:38,105 INFO L267 ElimStorePlain]: Start of recursive call 2: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-03-29 21:16:38,108 INFO L267 ElimStorePlain]: Start of recursive call 1: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-03-29 21:16:38,108 INFO L202 ElimStorePlain]: Needed 3 recursive calls to eliminate 1 variables, input treesize:23, output treesize:15 [2018-03-29 21:16:38,130 WARN L1033 $PredicateComparison]: unable to prove that (exists ((~__U_MULTI_f___________true_valid_memsafety_i__a~0.base Int)) (let ((.cse0 (store |c_old(#valid)| ~__U_MULTI_f___________true_valid_memsafety_i__a~0.base 1))) (and (= (store (store .cse0 c_~__U_MULTI_f___________true_valid_memsafety_i__b~0.base 1) ~__U_MULTI_f___________true_valid_memsafety_i__a~0.base 0) |c_#valid|) (= 0 (select .cse0 c_~__U_MULTI_f___________true_valid_memsafety_i__b~0.base)) (= (select |c_old(#valid)| ~__U_MULTI_f___________true_valid_memsafety_i__a~0.base) 0)))) is different from true [2018-03-29 21:16:38,135 WARN L1033 $PredicateComparison]: unable to prove that (exists ((~__U_MULTI_f___________true_valid_memsafety_i__b~0.base Int) (~__U_MULTI_f___________true_valid_memsafety_i__a~0.base Int)) (let ((.cse0 (store |c_old(#valid)| ~__U_MULTI_f___________true_valid_memsafety_i__a~0.base 1))) (and (= 0 (select .cse0 ~__U_MULTI_f___________true_valid_memsafety_i__b~0.base)) (= (select |c_old(#valid)| ~__U_MULTI_f___________true_valid_memsafety_i__a~0.base) 0) (= (store (store (store .cse0 ~__U_MULTI_f___________true_valid_memsafety_i__b~0.base 1) ~__U_MULTI_f___________true_valid_memsafety_i__a~0.base 0) ~__U_MULTI_f___________true_valid_memsafety_i__b~0.base 0) |c_#valid|)))) is different from true [2018-03-29 21:16:38,145 INFO L134 CoverageAnalysis]: Checked inductivity of 15 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 15 trivial. 0 not checked. [2018-03-29 21:16:38,145 INFO L314 TraceCheckSpWp]: Computing backward predicates... [2018-03-29 21:16:38,185 WARN L1011 $PredicateComparison]: unable to prove that (forall ((|v_main_#t~malloc5.base_26| Int)) (or (= |c_old(#valid)| (store (store (store |c_#valid| |v_main_#t~malloc5.base_26| 1) c_~__U_MULTI_f___________true_valid_memsafety_i__a~0.base 0) |v_main_#t~malloc5.base_26| 0)) (not (= 0 (select |c_#valid| |v_main_#t~malloc5.base_26|))))) is different from false [2018-03-29 21:16:38,189 WARN L1011 $PredicateComparison]: unable to prove that (forall ((|v_main_#t~malloc5.base_26| Int)) (or (not (= 0 (select |c_#valid| |v_main_#t~malloc5.base_26|))) (= (store (store (store |c_#valid| |v_main_#t~malloc5.base_26| 1) |c_main_#t~malloc4.base| 0) |v_main_#t~malloc5.base_26| 0) |c_old(#valid)|))) is different from false [2018-03-29 21:16:38,192 WARN L1011 $PredicateComparison]: unable to prove that (forall ((|v_main_#t~malloc5.base_26| Int) (|v_main_#t~malloc4.base_25| Int)) (let ((.cse0 (store |c_#valid| |v_main_#t~malloc4.base_25| 1))) (or (not (= (select |c_#valid| |v_main_#t~malloc4.base_25|) 0)) (= (store (store (store .cse0 |v_main_#t~malloc5.base_26| 1) |v_main_#t~malloc4.base_25| 0) |v_main_#t~malloc5.base_26| 0) |c_old(#valid)|) (not (= 0 (select .cse0 |v_main_#t~malloc5.base_26|)))))) is different from false [2018-03-29 21:16:38,206 INFO L134 CoverageAnalysis]: Checked inductivity of 15 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 15 trivial. 0 not checked. [2018-03-29 21:16:38,227 INFO L320 seRefinementStrategy]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2018-03-29 21:16:38,227 INFO L335 seRefinementStrategy]: Number of different interpolants: perfect sequences [10, 9] imperfect sequences [] total 17 [2018-03-29 21:16:38,227 INFO L442 AbstractCegarLoop]: Interpolant automaton has 18 states [2018-03-29 21:16:38,227 INFO L132 InterpolantAutomaton]: Constructing interpolant automaton starting with 18 interpolants. [2018-03-29 21:16:38,227 INFO L133 InterpolantAutomaton]: CoverageRelationStatistics Valid=37, Invalid=134, Unknown=5, NotChecked=130, Total=306 [2018-03-29 21:16:38,228 INFO L87 Difference]: Start difference. First operand 207 states and 214 transitions. Second operand 18 states. [2018-03-29 21:16:38,249 WARN L1011 $PredicateComparison]: unable to prove that (and (= |c_#valid| |c_old(#valid)|) (forall ((|v_main_#t~malloc5.base_26| Int) (|v_main_#t~malloc4.base_25| Int)) (let ((.cse0 (store |c_#valid| |v_main_#t~malloc4.base_25| 1))) (or (not (= (select |c_#valid| |v_main_#t~malloc4.base_25|) 0)) (= (store (store (store .cse0 |v_main_#t~malloc5.base_26| 1) |v_main_#t~malloc4.base_25| 0) |v_main_#t~malloc5.base_26| 0) |c_old(#valid)|) (not (= 0 (select .cse0 |v_main_#t~malloc5.base_26|))))))) is different from false [2018-03-29 21:16:38,557 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-03-29 21:16:38,557 INFO L93 Difference]: Finished difference Result 209 states and 216 transitions. [2018-03-29 21:16:38,557 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2018-03-29 21:16:38,557 INFO L78 Accepts]: Start accepts. Automaton has 18 states. Word has length 70 [2018-03-29 21:16:38,557 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-03-29 21:16:38,558 INFO L225 Difference]: With dead ends: 209 [2018-03-29 21:16:38,558 INFO L226 Difference]: Without dead ends: 154 [2018-03-29 21:16:38,558 INFO L567 BasicCegarLoop]: 0 DeclaredPredicates, 150 GetRequests, 123 SyntacticMatches, 2 SemanticMatches, 25 ConstructedPredicates, 6 IntricatePredicates, 0 DeprecatedPredicates, 29 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=90, Invalid=344, Unknown=10, NotChecked=258, Total=702 [2018-03-29 21:16:38,558 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 154 states. [2018-03-29 21:16:38,575 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 154 to 154. [2018-03-29 21:16:38,575 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 154 states. [2018-03-29 21:16:38,575 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 154 states to 154 states and 159 transitions. [2018-03-29 21:16:38,576 INFO L78 Accepts]: Start accepts. Automaton has 154 states and 159 transitions. Word has length 70 [2018-03-29 21:16:38,576 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-03-29 21:16:38,576 INFO L459 AbstractCegarLoop]: Abstraction has 154 states and 159 transitions. [2018-03-29 21:16:38,576 INFO L460 AbstractCegarLoop]: Interpolant automaton has 18 states. [2018-03-29 21:16:38,576 INFO L276 IsEmpty]: Start isEmpty. Operand 154 states and 159 transitions. [2018-03-29 21:16:38,577 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 74 [2018-03-29 21:16:38,577 INFO L347 BasicCegarLoop]: Found error trace [2018-03-29 21:16:38,577 INFO L355 BasicCegarLoop]: trace histogram [5, 5, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-03-29 21:16:38,577 INFO L408 AbstractCegarLoop]: === Iteration 25 === [mainErr5RequiresViolation, mainErr1RequiresViolation, mainErr6AssertViolationMEMORY_FREE, mainErr13AssertViolationMEMORY_FREE, mainErr10AssertViolationMEMORY_FREE, mainErr11AssertViolationMEMORY_FREE, mainErr0RequiresViolation, mainErr14EnsuresViolationMEMORY_LEAK, mainErr3RequiresViolation, mainErr7AssertViolationMEMORY_FREE, mainErr9AssertViolationMEMORY_FREE, mainErr2RequiresViolation, mainErr4RequiresViolation, mainErr8AssertViolationMEMORY_FREE, mainErr12AssertViolationMEMORY_FREE, __U_MULTI_f___________true_valid_memsafety_i__fooErr1RequiresViolation, __U_MULTI_f___________true_valid_memsafety_i__fooErr3RequiresViolation, __U_MULTI_f___________true_valid_memsafety_i__fooErr2RequiresViolation, __U_MULTI_f___________true_valid_memsafety_i__fooErr0RequiresViolation]=== [2018-03-29 21:16:38,577 INFO L82 PathProgramCache]: Analyzing trace with hash 58958201, now seen corresponding path program 6 times No working directory specified, using /storage/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 26 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 26 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2018-03-29 21:16:38,583 INFO L68 tionRefinementEngine]: Using refinement strategy FixedRefinementStrategy [2018-03-29 21:16:38,603 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-03-29 21:16:38,605 INFO L270 TraceCheckSpWp]: Computing forward predicates... [2018-03-29 21:16:38,695 INFO L134 CoverageAnalysis]: Checked inductivity of 78 backedges. 48 proven. 30 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-03-29 21:16:38,695 INFO L314 TraceCheckSpWp]: Computing backward predicates... [2018-03-29 21:16:38,799 INFO L134 CoverageAnalysis]: Checked inductivity of 78 backedges. 48 proven. 30 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-03-29 21:16:38,820 INFO L320 seRefinementStrategy]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2018-03-29 21:16:38,820 INFO L335 seRefinementStrategy]: Number of different interpolants: perfect sequences [] imperfect sequences [18, 18] total 27 [2018-03-29 21:16:38,820 INFO L442 AbstractCegarLoop]: Interpolant automaton has 27 states [2018-03-29 21:16:38,820 INFO L132 InterpolantAutomaton]: Constructing interpolant automaton starting with 27 interpolants. [2018-03-29 21:16:38,820 INFO L133 InterpolantAutomaton]: CoverageRelationStatistics Valid=126, Invalid=576, Unknown=0, NotChecked=0, Total=702 [2018-03-29 21:16:38,821 INFO L87 Difference]: Start difference. First operand 154 states and 159 transitions. Second operand 27 states. [2018-03-29 21:16:39,339 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-03-29 21:16:39,339 INFO L93 Difference]: Finished difference Result 281 states and 287 transitions. [2018-03-29 21:16:39,374 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 39 states. [2018-03-29 21:16:39,374 INFO L78 Accepts]: Start accepts. Automaton has 27 states. Word has length 73 [2018-03-29 21:16:39,374 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-03-29 21:16:39,375 INFO L225 Difference]: With dead ends: 281 [2018-03-29 21:16:39,375 INFO L226 Difference]: Without dead ends: 244 [2018-03-29 21:16:39,376 INFO L567 BasicCegarLoop]: 0 DeclaredPredicates, 171 GetRequests, 113 SyntacticMatches, 7 SemanticMatches, 51 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 653 ImplicationChecksByTransitivity, 0.4s TimeCoverageRelationStatistics Valid=538, Invalid=2218, Unknown=0, NotChecked=0, Total=2756 [2018-03-29 21:16:39,376 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 244 states. [2018-03-29 21:16:39,390 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 244 to 217. [2018-03-29 21:16:39,391 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 217 states. [2018-03-29 21:16:39,391 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 217 states to 217 states and 225 transitions. [2018-03-29 21:16:39,391 INFO L78 Accepts]: Start accepts. Automaton has 217 states and 225 transitions. Word has length 73 [2018-03-29 21:16:39,392 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-03-29 21:16:39,392 INFO L459 AbstractCegarLoop]: Abstraction has 217 states and 225 transitions. [2018-03-29 21:16:39,392 INFO L460 AbstractCegarLoop]: Interpolant automaton has 27 states. [2018-03-29 21:16:39,392 INFO L276 IsEmpty]: Start isEmpty. Operand 217 states and 225 transitions. [2018-03-29 21:16:39,393 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 76 [2018-03-29 21:16:39,393 INFO L347 BasicCegarLoop]: Found error trace [2018-03-29 21:16:39,393 INFO L355 BasicCegarLoop]: trace histogram [4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 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] [2018-03-29 21:16:39,393 INFO L408 AbstractCegarLoop]: === Iteration 26 === [mainErr5RequiresViolation, mainErr1RequiresViolation, mainErr6AssertViolationMEMORY_FREE, mainErr13AssertViolationMEMORY_FREE, mainErr10AssertViolationMEMORY_FREE, mainErr11AssertViolationMEMORY_FREE, mainErr0RequiresViolation, mainErr14EnsuresViolationMEMORY_LEAK, mainErr3RequiresViolation, mainErr7AssertViolationMEMORY_FREE, mainErr9AssertViolationMEMORY_FREE, mainErr2RequiresViolation, mainErr4RequiresViolation, mainErr8AssertViolationMEMORY_FREE, mainErr12AssertViolationMEMORY_FREE, __U_MULTI_f___________true_valid_memsafety_i__fooErr1RequiresViolation, __U_MULTI_f___________true_valid_memsafety_i__fooErr3RequiresViolation, __U_MULTI_f___________true_valid_memsafety_i__fooErr2RequiresViolation, __U_MULTI_f___________true_valid_memsafety_i__fooErr0RequiresViolation]=== [2018-03-29 21:16:39,393 INFO L82 PathProgramCache]: Analyzing trace with hash -806169101, now seen corresponding path program 3 times No working directory specified, using /storage/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 27 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 27 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2018-03-29 21:16:39,400 INFO L68 tionRefinementEngine]: Using refinement strategy FixedRefinementStrategy [2018-03-29 21:16:39,422 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-03-29 21:16:39,424 INFO L270 TraceCheckSpWp]: Computing forward predicates... [2018-03-29 21:16:39,482 INFO L134 CoverageAnalysis]: Checked inductivity of 49 backedges. 12 proven. 13 refuted. 0 times theorem prover too weak. 24 trivial. 0 not checked. [2018-03-29 21:16:39,482 INFO L314 TraceCheckSpWp]: Computing backward predicates... [2018-03-29 21:16:39,537 INFO L134 CoverageAnalysis]: Checked inductivity of 49 backedges. 12 proven. 13 refuted. 0 times theorem prover too weak. 24 trivial. 0 not checked. [2018-03-29 21:16:39,559 INFO L320 seRefinementStrategy]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2018-03-29 21:16:39,559 INFO L335 seRefinementStrategy]: Number of different interpolants: perfect sequences [] imperfect sequences [12, 12] total 17 [2018-03-29 21:16:39,559 INFO L442 AbstractCegarLoop]: Interpolant automaton has 17 states [2018-03-29 21:16:39,559 INFO L132 InterpolantAutomaton]: Constructing interpolant automaton starting with 17 interpolants. [2018-03-29 21:16:39,560 INFO L133 InterpolantAutomaton]: CoverageRelationStatistics Valid=57, Invalid=215, Unknown=0, NotChecked=0, Total=272 [2018-03-29 21:16:39,560 INFO L87 Difference]: Start difference. First operand 217 states and 225 transitions. Second operand 17 states. [2018-03-29 21:16:39,818 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-03-29 21:16:39,818 INFO L93 Difference]: Finished difference Result 247 states and 253 transitions. [2018-03-29 21:16:39,818 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 18 states. [2018-03-29 21:16:39,818 INFO L78 Accepts]: Start accepts. Automaton has 17 states. Word has length 75 [2018-03-29 21:16:39,818 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-03-29 21:16:39,819 INFO L225 Difference]: With dead ends: 247 [2018-03-29 21:16:39,819 INFO L226 Difference]: Without dead ends: 227 [2018-03-29 21:16:39,819 INFO L567 BasicCegarLoop]: 0 DeclaredPredicates, 158 GetRequests, 129 SyntacticMatches, 5 SemanticMatches, 24 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 129 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=139, Invalid=511, Unknown=0, NotChecked=0, Total=650 [2018-03-29 21:16:39,820 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 227 states. [2018-03-29 21:16:39,835 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 227 to 216. [2018-03-29 21:16:39,835 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 216 states. [2018-03-29 21:16:39,836 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 216 states to 216 states and 222 transitions. [2018-03-29 21:16:39,836 INFO L78 Accepts]: Start accepts. Automaton has 216 states and 222 transitions. Word has length 75 [2018-03-29 21:16:39,836 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-03-29 21:16:39,836 INFO L459 AbstractCegarLoop]: Abstraction has 216 states and 222 transitions. [2018-03-29 21:16:39,836 INFO L460 AbstractCegarLoop]: Interpolant automaton has 17 states. [2018-03-29 21:16:39,836 INFO L276 IsEmpty]: Start isEmpty. Operand 216 states and 222 transitions. [2018-03-29 21:16:39,837 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 79 [2018-03-29 21:16:39,837 INFO L347 BasicCegarLoop]: Found error trace [2018-03-29 21:16:39,837 INFO L355 BasicCegarLoop]: trace histogram [4, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 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] [2018-03-29 21:16:39,837 INFO L408 AbstractCegarLoop]: === Iteration 27 === [mainErr5RequiresViolation, mainErr1RequiresViolation, mainErr6AssertViolationMEMORY_FREE, mainErr13AssertViolationMEMORY_FREE, mainErr10AssertViolationMEMORY_FREE, mainErr11AssertViolationMEMORY_FREE, mainErr0RequiresViolation, mainErr14EnsuresViolationMEMORY_LEAK, mainErr3RequiresViolation, mainErr7AssertViolationMEMORY_FREE, mainErr9AssertViolationMEMORY_FREE, mainErr2RequiresViolation, mainErr4RequiresViolation, mainErr8AssertViolationMEMORY_FREE, mainErr12AssertViolationMEMORY_FREE, __U_MULTI_f___________true_valid_memsafety_i__fooErr1RequiresViolation, __U_MULTI_f___________true_valid_memsafety_i__fooErr3RequiresViolation, __U_MULTI_f___________true_valid_memsafety_i__fooErr2RequiresViolation, __U_MULTI_f___________true_valid_memsafety_i__fooErr0RequiresViolation]=== [2018-03-29 21:16:39,837 INFO L82 PathProgramCache]: Analyzing trace with hash 871942402, now seen corresponding path program 2 times No working directory specified, using /storage/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 28 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 28 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2018-03-29 21:16:39,843 INFO L68 tionRefinementEngine]: Using refinement strategy FixedRefinementStrategy [2018-03-29 21:16:39,862 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-03-29 21:16:39,864 INFO L270 TraceCheckSpWp]: Computing forward predicates... [2018-03-29 21:16:39,955 INFO L134 CoverageAnalysis]: Checked inductivity of 47 backedges. 3 proven. 20 refuted. 0 times theorem prover too weak. 24 trivial. 0 not checked. [2018-03-29 21:16:39,955 INFO L314 TraceCheckSpWp]: Computing backward predicates... [2018-03-29 21:16:40,009 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 1 new quantified variables, introduced 0 case distinctions, treesize of input 22 treesize of output 20 [2018-03-29 21:16:40,010 INFO L267 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2018-03-29 21:16:40,016 INFO L267 ElimStorePlain]: Start of recursive call 1: 2 dim-0 vars, 1 dim-1 vars, End of recursive call: 1 dim-0 vars, and 2 xjuncts. [2018-03-29 21:16:40,016 INFO L202 ElimStorePlain]: Needed 2 recursive calls to eliminate 3 variables, input treesize:28, output treesize:19 [2018-03-29 21:16:40,076 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 1 new quantified variables, introduced 0 case distinctions, treesize of input 27 treesize of output 25 [2018-03-29 21:16:40,076 INFO L267 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2018-03-29 21:16:40,077 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 1 new quantified variables, introduced 0 case distinctions, treesize of input 33 treesize of output 31 [2018-03-29 21:16:40,077 INFO L267 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 1 xjuncts. [2018-03-29 21:16:40,085 INFO L267 ElimStorePlain]: Start of recursive call 1: 1 dim-0 vars, 1 dim-1 vars, End of recursive call: and 2 xjuncts. [2018-03-29 21:16:40,086 INFO L202 ElimStorePlain]: Needed 3 recursive calls to eliminate 2 variables, input treesize:61, output treesize:43 [2018-03-29 21:16:40,326 INFO L134 CoverageAnalysis]: Checked inductivity of 47 backedges. 3 proven. 20 refuted. 0 times theorem prover too weak. 24 trivial. 0 not checked. [2018-03-29 21:16:40,347 INFO L320 seRefinementStrategy]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2018-03-29 21:16:40,347 INFO L335 seRefinementStrategy]: Number of different interpolants: perfect sequences [] imperfect sequences [11, 12] total 22 [2018-03-29 21:16:40,347 INFO L442 AbstractCegarLoop]: Interpolant automaton has 23 states [2018-03-29 21:16:40,347 INFO L132 InterpolantAutomaton]: Constructing interpolant automaton starting with 23 interpolants. [2018-03-29 21:16:40,348 INFO L133 InterpolantAutomaton]: CoverageRelationStatistics Valid=77, Invalid=429, Unknown=0, NotChecked=0, Total=506 [2018-03-29 21:16:40,348 INFO L87 Difference]: Start difference. First operand 216 states and 222 transitions. Second operand 23 states. [2018-03-29 21:16:40,506 WARN L151 SmtUtils]: Spent 101ms on a formula simplification. DAG size of input: 54 DAG size of output 42 [2018-03-29 21:16:41,151 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-03-29 21:16:41,151 INFO L93 Difference]: Finished difference Result 227 states and 232 transitions. [2018-03-29 21:16:41,151 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 28 states. [2018-03-29 21:16:41,151 INFO L78 Accepts]: Start accepts. Automaton has 23 states. Word has length 78 [2018-03-29 21:16:41,151 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-03-29 21:16:41,152 INFO L225 Difference]: With dead ends: 227 [2018-03-29 21:16:41,152 INFO L226 Difference]: Without dead ends: 226 [2018-03-29 21:16:41,153 INFO L567 BasicCegarLoop]: 0 DeclaredPredicates, 169 GetRequests, 133 SyntacticMatches, 1 SemanticMatches, 35 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 251 ImplicationChecksByTransitivity, 0.8s TimeCoverageRelationStatistics Valid=203, Invalid=1129, Unknown=0, NotChecked=0, Total=1332 [2018-03-29 21:16:41,153 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 226 states. [2018-03-29 21:16:41,174 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 226 to 218. [2018-03-29 21:16:41,174 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 218 states. [2018-03-29 21:16:41,175 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 218 states to 218 states and 224 transitions. [2018-03-29 21:16:41,175 INFO L78 Accepts]: Start accepts. Automaton has 218 states and 224 transitions. Word has length 78 [2018-03-29 21:16:41,175 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-03-29 21:16:41,176 INFO L459 AbstractCegarLoop]: Abstraction has 218 states and 224 transitions. [2018-03-29 21:16:41,176 INFO L460 AbstractCegarLoop]: Interpolant automaton has 23 states. [2018-03-29 21:16:41,176 INFO L276 IsEmpty]: Start isEmpty. Operand 218 states and 224 transitions. [2018-03-29 21:16:41,177 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 81 [2018-03-29 21:16:41,177 INFO L347 BasicCegarLoop]: Found error trace [2018-03-29 21:16:41,177 INFO L355 BasicCegarLoop]: trace histogram [5, 5, 5, 5, 4, 4, 4, 4, 4, 4, 4, 4, 4, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-03-29 21:16:41,177 INFO L408 AbstractCegarLoop]: === Iteration 28 === [mainErr5RequiresViolation, mainErr1RequiresViolation, mainErr6AssertViolationMEMORY_FREE, mainErr13AssertViolationMEMORY_FREE, mainErr10AssertViolationMEMORY_FREE, mainErr11AssertViolationMEMORY_FREE, mainErr0RequiresViolation, mainErr14EnsuresViolationMEMORY_LEAK, mainErr3RequiresViolation, mainErr7AssertViolationMEMORY_FREE, mainErr9AssertViolationMEMORY_FREE, mainErr2RequiresViolation, mainErr4RequiresViolation, mainErr8AssertViolationMEMORY_FREE, mainErr12AssertViolationMEMORY_FREE, __U_MULTI_f___________true_valid_memsafety_i__fooErr1RequiresViolation, __U_MULTI_f___________true_valid_memsafety_i__fooErr3RequiresViolation, __U_MULTI_f___________true_valid_memsafety_i__fooErr2RequiresViolation, __U_MULTI_f___________true_valid_memsafety_i__fooErr0RequiresViolation]=== [2018-03-29 21:16:41,177 INFO L82 PathProgramCache]: Analyzing trace with hash 1473039393, now seen corresponding path program 7 times No working directory specified, using /storage/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 29 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 29 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2018-03-29 21:16:41,183 INFO L68 tionRefinementEngine]: Using refinement strategy FixedRefinementStrategy [2018-03-29 21:16:41,205 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-03-29 21:16:41,207 INFO L270 TraceCheckSpWp]: Computing forward predicates... [2018-03-29 21:16:41,236 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 [2018-03-29 21:16:41,237 INFO L267 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2018-03-29 21:16:41,240 INFO L267 ElimStorePlain]: Start of recursive call 1: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-03-29 21:16:41,240 INFO L202 ElimStorePlain]: Needed 2 recursive calls to eliminate 1 variables, input treesize:15, output treesize:14 [2018-03-29 21:16:41,262 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 [2018-03-29 21:16:41,263 INFO L267 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2018-03-29 21:16:41,268 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. [2018-03-29 21:16:41,268 INFO L202 ElimStorePlain]: Needed 2 recursive calls to eliminate 3 variables, input treesize:22, output treesize:21 [2018-03-29 21:16:41,499 INFO L134 CoverageAnalysis]: Checked inductivity of 102 backedges. 54 proven. 48 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-03-29 21:16:41,499 INFO L314 TraceCheckSpWp]: Computing backward predicates... [2018-03-29 21:16:42,021 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 [2018-03-29 21:16:42,032 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 14 treesize of output 5 [2018-03-29 21:16:42,032 INFO L267 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 1 xjuncts. [2018-03-29 21:16:42,033 INFO L267 ElimStorePlain]: Start of recursive call 2: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-03-29 21:16:42,034 INFO L267 ElimStorePlain]: Start of recursive call 1: 2 dim-0 vars, 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-03-29 21:16:42,034 INFO L202 ElimStorePlain]: Needed 3 recursive calls to eliminate 3 variables, input treesize:15, output treesize:5 [2018-03-29 21:16:42,220 INFO L134 CoverageAnalysis]: Checked inductivity of 102 backedges. 54 proven. 48 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-03-29 21:16:42,242 INFO L320 seRefinementStrategy]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2018-03-29 21:16:42,242 INFO L335 seRefinementStrategy]: Number of different interpolants: perfect sequences [] imperfect sequences [22, 22] total 34 [2018-03-29 21:16:42,242 INFO L442 AbstractCegarLoop]: Interpolant automaton has 35 states [2018-03-29 21:16:42,243 INFO L132 InterpolantAutomaton]: Constructing interpolant automaton starting with 35 interpolants. [2018-03-29 21:16:42,243 INFO L133 InterpolantAutomaton]: CoverageRelationStatistics Valid=144, Invalid=1046, Unknown=0, NotChecked=0, Total=1190 [2018-03-29 21:16:42,243 INFO L87 Difference]: Start difference. First operand 218 states and 224 transitions. Second operand 35 states. [2018-03-29 21:16:43,559 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-03-29 21:16:43,559 INFO L93 Difference]: Finished difference Result 280 states and 284 transitions. [2018-03-29 21:16:43,560 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 34 states. [2018-03-29 21:16:43,560 INFO L78 Accepts]: Start accepts. Automaton has 35 states. Word has length 80 [2018-03-29 21:16:43,560 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-03-29 21:16:43,561 INFO L225 Difference]: With dead ends: 280 [2018-03-29 21:16:43,561 INFO L226 Difference]: Without dead ends: 249 [2018-03-29 21:16:43,563 INFO L567 BasicCegarLoop]: 0 DeclaredPredicates, 184 GetRequests, 117 SyntacticMatches, 9 SemanticMatches, 58 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 908 ImplicationChecksByTransitivity, 1.4s TimeCoverageRelationStatistics Valid=543, Invalid=2997, Unknown=0, NotChecked=0, Total=3540 [2018-03-29 21:16:43,563 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 249 states. [2018-03-29 21:16:43,588 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 249 to 224. [2018-03-29 21:16:43,588 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 224 states. [2018-03-29 21:16:43,589 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 224 states to 224 states and 230 transitions. [2018-03-29 21:16:43,589 INFO L78 Accepts]: Start accepts. Automaton has 224 states and 230 transitions. Word has length 80 [2018-03-29 21:16:43,590 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-03-29 21:16:43,590 INFO L459 AbstractCegarLoop]: Abstraction has 224 states and 230 transitions. [2018-03-29 21:16:43,590 INFO L460 AbstractCegarLoop]: Interpolant automaton has 35 states. [2018-03-29 21:16:43,590 INFO L276 IsEmpty]: Start isEmpty. Operand 224 states and 230 transitions. [2018-03-29 21:16:43,591 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 86 [2018-03-29 21:16:43,591 INFO L347 BasicCegarLoop]: Found error trace [2018-03-29 21:16:43,591 INFO L355 BasicCegarLoop]: trace histogram [4, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 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, 1, 1, 1, 1] [2018-03-29 21:16:43,591 INFO L408 AbstractCegarLoop]: === Iteration 29 === [mainErr5RequiresViolation, mainErr1RequiresViolation, mainErr6AssertViolationMEMORY_FREE, mainErr13AssertViolationMEMORY_FREE, mainErr10AssertViolationMEMORY_FREE, mainErr11AssertViolationMEMORY_FREE, mainErr0RequiresViolation, mainErr14EnsuresViolationMEMORY_LEAK, mainErr3RequiresViolation, mainErr7AssertViolationMEMORY_FREE, mainErr9AssertViolationMEMORY_FREE, mainErr2RequiresViolation, mainErr4RequiresViolation, mainErr8AssertViolationMEMORY_FREE, mainErr12AssertViolationMEMORY_FREE, __U_MULTI_f___________true_valid_memsafety_i__fooErr1RequiresViolation, __U_MULTI_f___________true_valid_memsafety_i__fooErr3RequiresViolation, __U_MULTI_f___________true_valid_memsafety_i__fooErr2RequiresViolation, __U_MULTI_f___________true_valid_memsafety_i__fooErr0RequiresViolation]=== [2018-03-29 21:16:43,591 INFO L82 PathProgramCache]: Analyzing trace with hash 1186767675, now seen corresponding path program 2 times No working directory specified, using /storage/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 30 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 30 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2018-03-29 21:16:43,597 INFO L68 tionRefinementEngine]: Using refinement strategy FixedRefinementStrategy [2018-03-29 21:16:43,622 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-03-29 21:16:43,625 INFO L270 TraceCheckSpWp]: Computing forward predicates... [2018-03-29 21:16:43,639 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 [2018-03-29 21:16:43,639 INFO L267 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2018-03-29 21:16:43,641 INFO L267 ElimStorePlain]: Start of recursive call 1: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-03-29 21:16:43,641 INFO L202 ElimStorePlain]: Needed 2 recursive calls to eliminate 1 variables, input treesize:10, output treesize:9 [2018-03-29 21:16:43,656 INFO L700 Elim1Store]: detected not equals via solver [2018-03-29 21:16:43,656 INFO L700 Elim1Store]: detected not equals via solver [2018-03-29 21:16:43,657 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 [2018-03-29 21:16:43,657 INFO L267 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2018-03-29 21:16:43,660 INFO L267 ElimStorePlain]: Start of recursive call 1: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-03-29 21:16:43,660 INFO L202 ElimStorePlain]: Needed 2 recursive calls to eliminate 1 variables, input treesize:17, output treesize:11 [2018-03-29 21:16:43,703 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 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 11 treesize of output 8 [2018-03-29 21:16:43,704 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 [2018-03-29 21:16:43,704 INFO L267 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 1 xjuncts. [2018-03-29 21:16:43,705 INFO L267 ElimStorePlain]: Start of recursive call 2: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-03-29 21:16:43,709 INFO L267 ElimStorePlain]: Start of recursive call 1: 1 dim-2 vars, End of recursive call: and 1 xjuncts. [2018-03-29 21:16:43,709 INFO L202 ElimStorePlain]: Needed 3 recursive calls to eliminate 1 variables, input treesize:22, output treesize:18 [2018-03-29 21:16:43,724 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 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 7 treesize of output 5 [2018-03-29 21:16:43,725 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 5 treesize of output 1 [2018-03-29 21:16:43,726 INFO L267 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 1 xjuncts. [2018-03-29 21:16:43,726 INFO L267 ElimStorePlain]: Start of recursive call 2: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-03-29 21:16:43,730 INFO L267 ElimStorePlain]: Start of recursive call 1: 1 dim-2 vars, End of recursive call: and 1 xjuncts. [2018-03-29 21:16:43,730 INFO L202 ElimStorePlain]: Needed 3 recursive calls to eliminate 1 variables, input treesize:21, output treesize:14 [2018-03-29 21:16:44,218 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 1 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 50 treesize of output 54 [2018-03-29 21:16:44,220 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 26 treesize of output 29 [2018-03-29 21:16:44,224 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 1 new quantified variables, introduced 0 case distinctions, treesize of input 29 treesize of output 38 [2018-03-29 21:16:44,230 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 31 treesize of output 41 [2018-03-29 21:16:44,231 INFO L267 ElimStorePlain]: Start of recursive call 5: End of recursive call: and 1 xjuncts. [2018-03-29 21:16:44,238 INFO L267 ElimStorePlain]: Start of recursive call 4: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-03-29 21:16:44,244 INFO L267 ElimStorePlain]: Start of recursive call 3: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-03-29 21:16:44,262 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 1 disjoint index pairs (out of 1 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 57 treesize of output 56 [2018-03-29 21:16:44,265 INFO L700 Elim1Store]: detected not equals via solver [2018-03-29 21:16:44,265 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 1 new quantified variables, introduced 0 case distinctions, treesize of input 19 treesize of output 25 [2018-03-29 21:16:44,267 INFO L700 Elim1Store]: detected not equals via solver [2018-03-29 21:16:44,268 INFO L700 Elim1Store]: detected not equals via solver [2018-03-29 21:16:44,269 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 2 select indices, 2 select index equivalence classes, 3 disjoint index pairs (out of 1 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 21 treesize of output 40 [2018-03-29 21:16:44,269 INFO L267 ElimStorePlain]: Start of recursive call 8: End of recursive call: and 1 xjuncts. [2018-03-29 21:16:44,278 INFO L267 ElimStorePlain]: Start of recursive call 7: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-03-29 21:16:44,288 INFO L267 ElimStorePlain]: Start of recursive call 6: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-03-29 21:16:44,297 INFO L267 ElimStorePlain]: Start of recursive call 2: 1 dim-1 vars, 1 dim-2 vars, End of recursive call: and 1 xjuncts. [2018-03-29 21:16:44,310 INFO L267 ElimStorePlain]: Start of recursive call 1: 5 dim-0 vars, 1 dim-2 vars, End of recursive call: 5 dim-0 vars, and 1 xjuncts. [2018-03-29 21:16:44,310 INFO L202 ElimStorePlain]: Needed 8 recursive calls to eliminate 6 variables, input treesize:86, output treesize:67 [2018-03-29 21:16:44,435 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 2 select indices, 2 select index equivalence classes, 1 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 75 treesize of output 63 [2018-03-29 21:16:44,437 INFO L700 Elim1Store]: detected not equals via solver [2018-03-29 21:16:44,475 INFO L700 Elim1Store]: detected not equals via solver [2018-03-29 21:16:44,475 INFO L700 Elim1Store]: detected not equals via solver [2018-03-29 21:16:44,476 INFO L700 Elim1Store]: detected not equals via solver [2018-03-29 21:16:44,476 INFO L682 Elim1Store]: detected equality via solver [2018-03-29 21:16:44,477 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 4 select indices, 4 select index equivalence classes, 3 disjoint index pairs (out of 6 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 32 treesize of output 36 [2018-03-29 21:16:44,477 INFO L267 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 1 xjuncts. [2018-03-29 21:16:44,493 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 3 select indices, 3 select index equivalence classes, 0 disjoint index pairs (out of 3 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 28 treesize of output 1 [2018-03-29 21:16:44,493 INFO L267 ElimStorePlain]: Start of recursive call 4: End of recursive call: and 1 xjuncts. [2018-03-29 21:16:44,495 INFO L267 ElimStorePlain]: Start of recursive call 2: 2 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-03-29 21:16:44,499 INFO L267 ElimStorePlain]: Start of recursive call 1: 6 dim-0 vars, 1 dim-2 vars, End of recursive call: and 1 xjuncts. [2018-03-29 21:16:44,499 INFO L202 ElimStorePlain]: Needed 4 recursive calls to eliminate 7 variables, input treesize:82, output treesize:10 [2018-03-29 21:16:44,546 INFO L134 CoverageAnalysis]: Checked inductivity of 47 backedges. 0 proven. 31 refuted. 16 times theorem prover too weak. 0 trivial. 0 not checked. [2018-03-29 21:16:44,546 INFO L314 TraceCheckSpWp]: Computing backward predicates... [2018-03-29 21:16:44,991 WARN L151 SmtUtils]: Spent 112ms on a formula simplification. DAG size of input: 45 DAG size of output 43 [2018-03-29 21:16:52,212 WARN L148 SmtUtils]: Spent 277ms on a formula simplification that was a NOOP. DAG size: 53 [2018-03-29 21:17:05,129 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 118 treesize of output 96 [2018-03-29 21:17:05,144 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 9 treesize of output 8 [2018-03-29 21:17:05,144 INFO L267 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 1 xjuncts. [2018-03-29 21:17:05,164 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 89 treesize of output 91 [2018-03-29 21:17:05,167 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 1 new quantified variables, introduced 0 case distinctions, treesize of input 83 treesize of output 79 [2018-03-29 21:17:05,174 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 75 treesize of output 71 [2018-03-29 21:17:05,184 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 3 select indices, 3 select index equivalence classes, 0 disjoint index pairs (out of 3 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 71 treesize of output 67 [2018-03-29 21:17:05,197 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 4 select indices, 4 select index equivalence classes, 1 disjoint index pairs (out of 6 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 67 treesize of output 67 [2018-03-29 21:17:05,217 INFO L682 Elim1Store]: detected equality via solver [2018-03-29 21:17:05,274 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 7 select indices, 7 select index equivalence classes, 4 disjoint index pairs (out of 21 index pairs), introduced 2 new quantified variables, introduced 9 case distinctions, treesize of input 62 treesize of output 153 [2018-03-29 21:17:05,275 WARN L130 XnfTransformerHelper]: expecting exponential blowup for input size 9 [2018-03-29 21:17:05,276 INFO L267 ElimStorePlain]: Start of recursive call 9: End of recursive call: and 3 xjuncts. [2018-03-29 21:17:05,286 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 6 select indices, 6 select index equivalence classes, 7 disjoint index pairs (out of 15 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 56 treesize of output 47 [2018-03-29 21:17:05,286 INFO L267 ElimStorePlain]: Start of recursive call 10: End of recursive call: and 1 xjuncts. [2018-03-29 21:17:05,324 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 7 select indices, 7 select index equivalence classes, 9 disjoint index pairs (out of 21 index pairs), introduced 2 new quantified variables, introduced 5 case distinctions, treesize of input 64 treesize of output 131 [2018-03-29 21:17:05,325 INFO L267 ElimStorePlain]: Start of recursive call 11: End of recursive call: and 2 xjuncts. [2018-03-29 21:17:05,359 INFO L267 ElimStorePlain]: Start of recursive call 8: 1 dim-1 vars, End of recursive call: and 2 xjuncts. [2018-03-29 21:17:05,379 INFO L267 ElimStorePlain]: Start of recursive call 7: 1 dim-1 vars, End of recursive call: and 2 xjuncts. [2018-03-29 21:17:05,399 INFO L267 ElimStorePlain]: Start of recursive call 6: 1 dim-1 vars, End of recursive call: and 2 xjuncts. [2018-03-29 21:17:05,421 INFO L267 ElimStorePlain]: Start of recursive call 5: 1 dim-1 vars, End of recursive call: and 2 xjuncts. [2018-03-29 21:17:05,455 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 86 treesize of output 80 [2018-03-29 21:17:05,455 INFO L267 ElimStorePlain]: Start of recursive call 12: End of recursive call: and 1 xjuncts. [2018-03-29 21:17:05,489 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 80 treesize of output 76 [2018-03-29 21:17:05,492 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 1 new quantified variables, introduced 0 case distinctions, treesize of input 69 treesize of output 65 [2018-03-29 21:17:05,497 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 65 treesize of output 61 [2018-03-29 21:17:05,505 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 3 select indices, 3 select index equivalence classes, 1 disjoint index pairs (out of 3 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 61 treesize of output 61 [2018-03-29 21:17:05,547 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 6 select indices, 6 select index equivalence classes, 8 disjoint index pairs (out of 15 index pairs), introduced 2 new quantified variables, introduced 4 case distinctions, treesize of input 58 treesize of output 113 [2018-03-29 21:17:05,548 INFO L267 ElimStorePlain]: Start of recursive call 17: End of recursive call: and 2 xjuncts. [2018-03-29 21:17:05,560 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 5 select indices, 5 select index equivalence classes, 6 disjoint index pairs (out of 10 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 50 treesize of output 42 [2018-03-29 21:17:05,560 INFO L267 ElimStorePlain]: Start of recursive call 18: End of recursive call: and 1 xjuncts. [2018-03-29 21:17:05,562 INFO L682 Elim1Store]: detected equality via solver [2018-03-29 21:17:05,615 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 6 select indices, 6 select index equivalence classes, 4 disjoint index pairs (out of 15 index pairs), introduced 2 new quantified variables, introduced 7 case distinctions, treesize of input 56 treesize of output 130 [2018-03-29 21:17:05,615 WARN L130 XnfTransformerHelper]: expecting exponential blowup for input size 7 [2018-03-29 21:17:05,616 INFO L267 ElimStorePlain]: Start of recursive call 19: End of recursive call: and 3 xjuncts. [2018-03-29 21:17:05,660 INFO L267 ElimStorePlain]: Start of recursive call 16: 1 dim-1 vars, End of recursive call: and 3 xjuncts. [2018-03-29 21:17:05,684 INFO L267 ElimStorePlain]: Start of recursive call 15: 1 dim-1 vars, End of recursive call: and 2 xjuncts. [2018-03-29 21:17:05,702 INFO L267 ElimStorePlain]: Start of recursive call 14: 1 dim-1 vars, End of recursive call: and 2 xjuncts. [2018-03-29 21:17:05,728 INFO L267 ElimStorePlain]: Start of recursive call 13: 1 dim-1 vars, End of recursive call: and 2 xjuncts. [2018-03-29 21:17:05,793 INFO L267 ElimStorePlain]: Start of recursive call 4: 3 dim-1 vars, End of recursive call: and 4 xjuncts. [2018-03-29 21:17:05,814 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 3 select indices, 3 select index equivalence classes, 0 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 3 case distinctions, treesize of input 119 treesize of output 133 [2018-03-29 21:17:05,822 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 2 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 112 treesize of output 114 [2018-03-29 21:17:05,844 INFO L682 Elim1Store]: detected equality via solver [2018-03-29 21:17:05,859 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 4 select indices, 4 select index equivalence classes, 4 disjoint index pairs (out of 6 index pairs), introduced 2 new quantified variables, introduced 3 case distinctions, treesize of input 32 treesize of output 60 [2018-03-29 21:17:05,860 INFO L267 ElimStorePlain]: Start of recursive call 22: End of recursive call: and 3 xjuncts. [2018-03-29 21:17:05,863 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 3 select indices, 3 select index equivalence classes, 4 disjoint index pairs (out of 3 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 26 treesize of output 20 [2018-03-29 21:17:05,864 INFO L267 ElimStorePlain]: Start of recursive call 23: End of recursive call: and 1 xjuncts. [2018-03-29 21:17:05,876 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 4 select indices, 4 select index equivalence classes, 6 disjoint index pairs (out of 6 index pairs), introduced 2 new quantified variables, introduced 2 case distinctions, treesize of input 34 treesize of output 53 [2018-03-29 21:17:05,877 INFO L267 ElimStorePlain]: Start of recursive call 24: End of recursive call: and 2 xjuncts. [2018-03-29 21:17:05,897 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 75 treesize of output 71 [2018-03-29 21:17:05,905 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 3 select indices, 3 select index equivalence classes, 0 disjoint index pairs (out of 3 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 71 treesize of output 67 [2018-03-29 21:17:05,917 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 4 select indices, 4 select index equivalence classes, 1 disjoint index pairs (out of 6 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 67 treesize of output 67 [2018-03-29 21:17:05,969 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 7 select indices, 7 select index equivalence classes, 9 disjoint index pairs (out of 21 index pairs), introduced 2 new quantified variables, introduced 5 case distinctions, treesize of input 64 treesize of output 131 [2018-03-29 21:17:05,969 INFO L267 ElimStorePlain]: Start of recursive call 28: End of recursive call: and 2 xjuncts. [2018-03-29 21:17:05,973 INFO L682 Elim1Store]: detected equality via solver [2018-03-29 21:17:06,032 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 7 select indices, 7 select index equivalence classes, 4 disjoint index pairs (out of 21 index pairs), introduced 2 new quantified variables, introduced 9 case distinctions, treesize of input 62 treesize of output 153 [2018-03-29 21:17:06,032 WARN L130 XnfTransformerHelper]: expecting exponential blowup for input size 9 [2018-03-29 21:17:06,033 INFO L267 ElimStorePlain]: Start of recursive call 29: End of recursive call: and 3 xjuncts. [2018-03-29 21:17:06,044 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 6 select indices, 6 select index equivalence classes, 7 disjoint index pairs (out of 15 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 56 treesize of output 47 [2018-03-29 21:17:06,044 INFO L267 ElimStorePlain]: Start of recursive call 30: End of recursive call: and 1 xjuncts. [2018-03-29 21:17:06,079 INFO L267 ElimStorePlain]: Start of recursive call 27: 1 dim-1 vars, End of recursive call: and 2 xjuncts. [2018-03-29 21:17:06,099 INFO L267 ElimStorePlain]: Start of recursive call 26: 1 dim-1 vars, End of recursive call: and 2 xjuncts. [2018-03-29 21:17:06,119 INFO L267 ElimStorePlain]: Start of recursive call 25: 1 dim-1 vars, End of recursive call: and 2 xjuncts. [2018-03-29 21:17:06,141 INFO L267 ElimStorePlain]: Start of recursive call 21: 2 dim-1 vars, End of recursive call: and 2 xjuncts. [2018-03-29 21:17:06,253 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 118 treesize of output 114 [2018-03-29 21:17:06,256 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 1 new quantified variables, introduced 0 case distinctions, treesize of input 69 treesize of output 71 [2018-03-29 21:17:06,261 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 65 treesize of output 67 [2018-03-29 21:17:06,269 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 3 select indices, 3 select index equivalence classes, 1 disjoint index pairs (out of 3 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 61 treesize of output 67 [2018-03-29 21:17:06,312 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 6 select indices, 6 select index equivalence classes, 8 disjoint index pairs (out of 15 index pairs), introduced 2 new quantified variables, introduced 4 case distinctions, treesize of input 58 treesize of output 113 [2018-03-29 21:17:06,313 INFO L267 ElimStorePlain]: Start of recursive call 35: End of recursive call: and 2 xjuncts. [2018-03-29 21:17:06,316 INFO L682 Elim1Store]: detected equality via solver [2018-03-29 21:17:06,374 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 6 select indices, 6 select index equivalence classes, 4 disjoint index pairs (out of 15 index pairs), introduced 2 new quantified variables, introduced 7 case distinctions, treesize of input 56 treesize of output 130 [2018-03-29 21:17:06,374 WARN L130 XnfTransformerHelper]: expecting exponential blowup for input size 7 [2018-03-29 21:17:06,376 INFO L267 ElimStorePlain]: Start of recursive call 36: End of recursive call: and 3 xjuncts. [2018-03-29 21:17:06,384 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 5 select indices, 5 select index equivalence classes, 6 disjoint index pairs (out of 10 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 50 treesize of output 42 [2018-03-29 21:17:06,384 INFO L267 ElimStorePlain]: Start of recursive call 37: End of recursive call: and 1 xjuncts. [2018-03-29 21:17:06,423 INFO L267 ElimStorePlain]: Start of recursive call 34: 1 dim-1 vars, End of recursive call: and 2 xjuncts. [2018-03-29 21:17:06,439 INFO L267 ElimStorePlain]: Start of recursive call 33: 1 dim-1 vars, End of recursive call: and 2 xjuncts. [2018-03-29 21:17:06,456 INFO L267 ElimStorePlain]: Start of recursive call 32: 1 dim-1 vars, End of recursive call: and 2 xjuncts. [2018-03-29 21:17:06,479 INFO L267 ElimStorePlain]: Start of recursive call 31: 1 dim-1 vars, End of recursive call: and 2 xjuncts. [2018-03-29 21:17:06,621 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 2 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 109 treesize of output 111 [2018-03-29 21:17:06,644 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 75 treesize of output 77 [2018-03-29 21:17:06,651 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 3 select indices, 3 select index equivalence classes, 0 disjoint index pairs (out of 3 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 71 treesize of output 73 [2018-03-29 21:17:06,663 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 4 select indices, 4 select index equivalence classes, 1 disjoint index pairs (out of 6 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 67 treesize of output 73 [2018-03-29 21:17:06,685 INFO L682 Elim1Store]: detected equality via solver [2018-03-29 21:17:06,743 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 7 select indices, 7 select index equivalence classes, 4 disjoint index pairs (out of 21 index pairs), introduced 2 new quantified variables, introduced 9 case distinctions, treesize of input 62 treesize of output 153 [2018-03-29 21:17:06,744 WARN L130 XnfTransformerHelper]: expecting exponential blowup for input size 9 [2018-03-29 21:17:06,745 INFO L267 ElimStorePlain]: Start of recursive call 42: End of recursive call: and 3 xjuncts. [2018-03-29 21:17:06,788 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 7 select indices, 7 select index equivalence classes, 9 disjoint index pairs (out of 21 index pairs), introduced 2 new quantified variables, introduced 5 case distinctions, treesize of input 64 treesize of output 131 [2018-03-29 21:17:06,789 INFO L267 ElimStorePlain]: Start of recursive call 43: End of recursive call: and 2 xjuncts. [2018-03-29 21:17:06,803 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 6 select indices, 6 select index equivalence classes, 7 disjoint index pairs (out of 15 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 56 treesize of output 47 [2018-03-29 21:17:06,803 INFO L267 ElimStorePlain]: Start of recursive call 44: End of recursive call: and 1 xjuncts. [2018-03-29 21:17:06,845 INFO L267 ElimStorePlain]: Start of recursive call 41: 1 dim-1 vars, End of recursive call: and 2 xjuncts. [2018-03-29 21:17:06,865 INFO L267 ElimStorePlain]: Start of recursive call 40: 1 dim-1 vars, End of recursive call: and 2 xjuncts. [2018-03-29 21:17:06,885 INFO L267 ElimStorePlain]: Start of recursive call 39: 1 dim-1 vars, End of recursive call: and 2 xjuncts. [2018-03-29 21:17:06,916 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 3 select indices, 3 select index equivalence classes, 4 disjoint index pairs (out of 3 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 26 treesize of output 20 [2018-03-29 21:17:06,917 INFO L267 ElimStorePlain]: Start of recursive call 45: End of recursive call: and 1 xjuncts. [2018-03-29 21:17:06,919 INFO L682 Elim1Store]: detected equality via solver [2018-03-29 21:17:06,936 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 4 select indices, 4 select index equivalence classes, 4 disjoint index pairs (out of 6 index pairs), introduced 2 new quantified variables, introduced 3 case distinctions, treesize of input 32 treesize of output 60 [2018-03-29 21:17:06,937 INFO L267 ElimStorePlain]: Start of recursive call 46: End of recursive call: and 3 xjuncts. [2018-03-29 21:17:06,952 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 4 select indices, 4 select index equivalence classes, 6 disjoint index pairs (out of 6 index pairs), introduced 2 new quantified variables, introduced 2 case distinctions, treesize of input 34 treesize of output 53 [2018-03-29 21:17:06,953 INFO L267 ElimStorePlain]: Start of recursive call 47: End of recursive call: and 2 xjuncts. [2018-03-29 21:17:06,982 INFO L267 ElimStorePlain]: Start of recursive call 38: 2 dim-1 vars, End of recursive call: and 2 xjuncts. [2018-03-29 21:17:07,099 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 1 new quantified variables, introduced 0 case distinctions, treesize of input 115 treesize of output 115 [2018-03-29 21:17:07,131 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 3 select indices, 3 select index equivalence classes, 4 disjoint index pairs (out of 3 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 26 treesize of output 20 [2018-03-29 21:17:07,131 INFO L267 ElimStorePlain]: Start of recursive call 49: End of recursive call: and 1 xjuncts. [2018-03-29 21:17:07,134 INFO L682 Elim1Store]: detected equality via solver [2018-03-29 21:17:07,150 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 4 select indices, 4 select index equivalence classes, 4 disjoint index pairs (out of 6 index pairs), introduced 2 new quantified variables, introduced 3 case distinctions, treesize of input 32 treesize of output 60 [2018-03-29 21:17:07,151 INFO L267 ElimStorePlain]: Start of recursive call 50: End of recursive call: and 3 xjuncts. [2018-03-29 21:17:07,163 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 4 select indices, 4 select index equivalence classes, 6 disjoint index pairs (out of 6 index pairs), introduced 2 new quantified variables, introduced 2 case distinctions, treesize of input 34 treesize of output 53 [2018-03-29 21:17:07,164 INFO L267 ElimStorePlain]: Start of recursive call 51: End of recursive call: and 2 xjuncts. [2018-03-29 21:17:07,195 INFO L267 ElimStorePlain]: Start of recursive call 48: 1 dim-1 vars, End of recursive call: and 2 xjuncts. [2018-03-29 21:17:07,288 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 2 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 92 treesize of output 88 [2018-03-29 21:17:07,291 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 1 select indices, 1 select index equivalence classes, 2 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 69 treesize of output 65 [2018-03-29 21:17:07,295 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 2 select indices, 2 select index equivalence classes, 2 disjoint index pairs (out of 1 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 65 treesize of output 61 [2018-03-29 21:17:07,302 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 3 select indices, 3 select index equivalence classes, 3 disjoint index pairs (out of 3 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 61 treesize of output 61 [2018-03-29 21:17:07,321 INFO L682 Elim1Store]: detected equality via solver [2018-03-29 21:17:07,346 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 6 select indices, 6 select index equivalence classes, 9 disjoint index pairs (out of 15 index pairs), introduced 2 new quantified variables, introduced 3 case distinctions, treesize of input 58 treesize of output 108 [2018-03-29 21:17:07,347 INFO L267 ElimStorePlain]: Start of recursive call 56: End of recursive call: and 2 xjuncts. [2018-03-29 21:17:07,348 WARN L307 Elim1Store]: Array PQE input equivalent to true [2018-03-29 21:17:07,348 INFO L267 ElimStorePlain]: Start of recursive call 57: End of recursive call: and 1 xjuncts. [2018-03-29 21:17:07,351 INFO L682 Elim1Store]: detected equality via solver [2018-03-29 21:17:07,352 INFO L682 Elim1Store]: detected equality via solver [2018-03-29 21:17:07,390 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 6 select indices, 6 select index equivalence classes, 5 disjoint index pairs (out of 15 index pairs), introduced 2 new quantified variables, introduced 6 case distinctions, treesize of input 56 treesize of output 125 [2018-03-29 21:17:07,390 WARN L130 XnfTransformerHelper]: expecting exponential blowup for input size 6 [2018-03-29 21:17:07,391 INFO L267 ElimStorePlain]: Start of recursive call 58: End of recursive call: and 3 xjuncts. [2018-03-29 21:17:07,420 INFO L267 ElimStorePlain]: Start of recursive call 55: 1 dim-1 vars, End of recursive call: and 2 xjuncts. [2018-03-29 21:17:07,434 INFO L267 ElimStorePlain]: Start of recursive call 54: 1 dim-1 vars, End of recursive call: and 2 xjuncts. [2018-03-29 21:17:07,451 INFO L267 ElimStorePlain]: Start of recursive call 53: 1 dim-1 vars, End of recursive call: and 2 xjuncts. [2018-03-29 21:17:07,476 INFO L267 ElimStorePlain]: Start of recursive call 52: 1 dim-1 vars, End of recursive call: and 2 xjuncts. [2018-03-29 21:17:07,578 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 115 treesize of output 109 [2018-03-29 21:17:07,578 INFO L267 ElimStorePlain]: Start of recursive call 59: End of recursive call: and 1 xjuncts. [2018-03-29 21:17:07,770 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 73 treesize of output 67 [2018-03-29 21:17:07,770 INFO L267 ElimStorePlain]: Start of recursive call 60: End of recursive call: and 1 xjuncts. [2018-03-29 21:17:07,923 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 4 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 67 treesize of output 67 [2018-03-29 21:17:07,947 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 3 select indices, 3 select index equivalence classes, 8 disjoint index pairs (out of 3 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 28 treesize of output 35 [2018-03-29 21:17:07,947 INFO L267 ElimStorePlain]: Start of recursive call 62: End of recursive call: and 2 xjuncts. [2018-03-29 21:17:07,949 INFO L682 Elim1Store]: detected equality via solver [2018-03-29 21:17:07,955 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 3 select indices, 3 select index equivalence classes, 7 disjoint index pairs (out of 3 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 26 treesize of output 37 [2018-03-29 21:17:07,955 INFO L267 ElimStorePlain]: Start of recursive call 63: End of recursive call: and 2 xjuncts. [2018-03-29 21:17:07,957 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 2 select indices, 2 select index equivalence classes, 6 disjoint index pairs (out of 1 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 20 treesize of output 15 [2018-03-29 21:17:07,957 INFO L267 ElimStorePlain]: Start of recursive call 64: End of recursive call: and 1 xjuncts. [2018-03-29 21:17:07,974 INFO L267 ElimStorePlain]: Start of recursive call 61: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-03-29 21:17:08,205 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 2 stores, 0 select indices, 0 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 109 treesize of output 105 [2018-03-29 21:17:08,230 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 1 new quantified variables, introduced 0 case distinctions, treesize of input 69 treesize of output 71 [2018-03-29 21:17:08,237 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 65 treesize of output 67 [2018-03-29 21:17:08,246 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 3 select indices, 3 select index equivalence classes, 1 disjoint index pairs (out of 3 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 61 treesize of output 67 [2018-03-29 21:17:08,264 INFO L682 Elim1Store]: detected equality via solver [2018-03-29 21:17:08,307 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 6 select indices, 6 select index equivalence classes, 4 disjoint index pairs (out of 15 index pairs), introduced 2 new quantified variables, introduced 7 case distinctions, treesize of input 56 treesize of output 130 [2018-03-29 21:17:08,308 WARN L130 XnfTransformerHelper]: expecting exponential blowup for input size 7 [2018-03-29 21:17:08,309 INFO L267 ElimStorePlain]: Start of recursive call 69: End of recursive call: and 3 xjuncts. [2018-03-29 21:17:08,316 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 5 select indices, 5 select index equivalence classes, 6 disjoint index pairs (out of 10 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 50 treesize of output 42 [2018-03-29 21:17:08,317 INFO L267 ElimStorePlain]: Start of recursive call 70: End of recursive call: and 1 xjuncts. [2018-03-29 21:17:08,345 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 6 select indices, 6 select index equivalence classes, 8 disjoint index pairs (out of 15 index pairs), introduced 2 new quantified variables, introduced 4 case distinctions, treesize of input 58 treesize of output 113 [2018-03-29 21:17:08,346 INFO L267 ElimStorePlain]: Start of recursive call 71: End of recursive call: and 2 xjuncts. [2018-03-29 21:17:08,389 INFO L267 ElimStorePlain]: Start of recursive call 68: 1 dim-1 vars, End of recursive call: and 2 xjuncts. [2018-03-29 21:17:08,405 INFO L267 ElimStorePlain]: Start of recursive call 67: 1 dim-1 vars, End of recursive call: and 2 xjuncts. [2018-03-29 21:17:08,421 INFO L267 ElimStorePlain]: Start of recursive call 66: 1 dim-1 vars, End of recursive call: and 2 xjuncts. [2018-03-29 21:17:08,450 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 2 select indices, 2 select index equivalence classes, 3 disjoint index pairs (out of 1 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 20 treesize of output 15 [2018-03-29 21:17:08,450 INFO L267 ElimStorePlain]: Start of recursive call 72: End of recursive call: and 1 xjuncts. [2018-03-29 21:17:08,456 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 3 select indices, 3 select index equivalence classes, 5 disjoint index pairs (out of 3 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 28 treesize of output 35 [2018-03-29 21:17:08,456 INFO L267 ElimStorePlain]: Start of recursive call 73: End of recursive call: and 2 xjuncts. [2018-03-29 21:17:08,458 INFO L682 Elim1Store]: detected equality via solver [2018-03-29 21:17:08,464 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 3 select indices, 3 select index equivalence classes, 4 disjoint index pairs (out of 3 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 26 treesize of output 37 [2018-03-29 21:17:08,465 INFO L267 ElimStorePlain]: Start of recursive call 74: End of recursive call: and 2 xjuncts. [2018-03-29 21:17:08,489 INFO L267 ElimStorePlain]: Start of recursive call 65: 2 dim-1 vars, End of recursive call: and 2 xjuncts. [2018-03-29 21:17:08,554 INFO L267 ElimStorePlain]: Start of recursive call 20: 13 dim-1 vars, End of recursive call: and 5 xjuncts. [2018-03-29 21:17:08,560 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 2 select indices, 2 select index equivalence classes, 1 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 46 treesize of output 48 [2018-03-29 21:17:08,562 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 43 treesize of output 37 [2018-03-29 21:17:08,562 INFO L267 ElimStorePlain]: Start of recursive call 76: End of recursive call: and 1 xjuncts. [2018-03-29 21:17:08,574 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 37 treesize of output 37 [2018-03-29 21:17:08,586 INFO L682 Elim1Store]: detected equality via solver [2018-03-29 21:17:08,592 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 3 select indices, 3 select index equivalence classes, 4 disjoint index pairs (out of 3 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 26 treesize of output 37 [2018-03-29 21:17:08,592 INFO L267 ElimStorePlain]: Start of recursive call 78: End of recursive call: and 2 xjuncts. [2018-03-29 21:17:08,593 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 2 select indices, 2 select index equivalence classes, 3 disjoint index pairs (out of 1 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 20 treesize of output 15 [2018-03-29 21:17:08,594 INFO L267 ElimStorePlain]: Start of recursive call 79: End of recursive call: and 1 xjuncts. [2018-03-29 21:17:08,599 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 3 select indices, 3 select index equivalence classes, 5 disjoint index pairs (out of 3 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 28 treesize of output 35 [2018-03-29 21:17:08,599 INFO L267 ElimStorePlain]: Start of recursive call 80: End of recursive call: and 2 xjuncts. [2018-03-29 21:17:08,609 INFO L267 ElimStorePlain]: Start of recursive call 77: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-03-29 21:17:08,621 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 1 new quantified variables, introduced 0 case distinctions, treesize of input 40 treesize of output 40 [2018-03-29 21:17:08,643 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 4 select indices, 4 select index equivalence classes, 6 disjoint index pairs (out of 6 index pairs), introduced 2 new quantified variables, introduced 2 case distinctions, treesize of input 34 treesize of output 53 [2018-03-29 21:17:08,644 INFO L267 ElimStorePlain]: Start of recursive call 82: End of recursive call: and 2 xjuncts. [2018-03-29 21:17:08,646 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 3 select indices, 3 select index equivalence classes, 4 disjoint index pairs (out of 3 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 26 treesize of output 20 [2018-03-29 21:17:08,647 INFO L267 ElimStorePlain]: Start of recursive call 83: End of recursive call: and 1 xjuncts. [2018-03-29 21:17:08,649 INFO L682 Elim1Store]: detected equality via solver [2018-03-29 21:17:08,663 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 4 select indices, 4 select index equivalence classes, 4 disjoint index pairs (out of 6 index pairs), introduced 2 new quantified variables, introduced 3 case distinctions, treesize of input 32 treesize of output 60 [2018-03-29 21:17:08,664 INFO L267 ElimStorePlain]: Start of recursive call 84: End of recursive call: and 3 xjuncts. [2018-03-29 21:17:08,684 INFO L267 ElimStorePlain]: Start of recursive call 81: 1 dim-1 vars, End of recursive call: and 2 xjuncts. [2018-03-29 21:17:08,698 INFO L267 ElimStorePlain]: Start of recursive call 75: 3 dim-1 vars, End of recursive call: and 3 xjuncts. [2018-03-29 21:17:08,770 INFO L267 ElimStorePlain]: Start of recursive call 2: 1 dim-1 vars, 1 dim-2 vars, End of recursive call: and 7 xjuncts. [2018-03-29 21:17:08,837 INFO L267 ElimStorePlain]: Start of recursive call 1: 4 dim-0 vars, 1 dim-2 vars, End of recursive call: and 7 xjuncts. [2018-03-29 21:17:08,837 INFO L202 ElimStorePlain]: Needed 84 recursive calls to eliminate 5 variables, input treesize:122, output treesize:174 [2018-03-29 21:17:09,536 INFO L134 CoverageAnalysis]: Checked inductivity of 47 backedges. 0 proven. 31 refuted. 10 times theorem prover too weak. 6 trivial. 0 not checked. [2018-03-29 21:17:09,557 INFO L320 seRefinementStrategy]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2018-03-29 21:17:09,557 INFO L335 seRefinementStrategy]: Number of different interpolants: perfect sequences [] imperfect sequences [26, 24] total 49 [2018-03-29 21:17:09,557 INFO L442 AbstractCegarLoop]: Interpolant automaton has 49 states [2018-03-29 21:17:09,557 INFO L132 InterpolantAutomaton]: Constructing interpolant automaton starting with 49 interpolants. [2018-03-29 21:17:09,558 INFO L133 InterpolantAutomaton]: CoverageRelationStatistics Valid=336, Invalid=1962, Unknown=54, NotChecked=0, Total=2352 [2018-03-29 21:17:09,558 INFO L87 Difference]: Start difference. First operand 224 states and 230 transitions. Second operand 49 states. [2018-03-29 21:17:21,124 WARN L151 SmtUtils]: Spent 4332ms on a formula simplification. DAG size of input: 80 DAG size of output 57 Received shutdown request... [2018-03-29 21:17:38,217 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2018-03-29 21:17:38,217 WARN L519 AbstractCegarLoop]: Verification canceled [2018-03-29 21:17:38,221 WARN L197 ceAbstractionStarter]: Timeout [2018-03-29 21:17:38,221 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 29.03 09:17:38 BoogieIcfgContainer [2018-03-29 21:17:38,221 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2018-03-29 21:17:38,222 INFO L168 Benchmark]: Toolchain (without parser) took 151728.81 ms. Allocated memory was 301.5 MB in the beginning and 582.5 MB in the end (delta: 281.0 MB). Free memory was 236.7 MB in the beginning and 516.3 MB in the end (delta: -279.6 MB). Peak memory consumption was 1.4 MB. Max. memory is 5.3 GB. [2018-03-29 21:17:38,223 INFO L168 Benchmark]: CDTParser took 0.20 ms. Allocated memory is still 301.5 MB. Free memory is still 263.8 MB. There was no memory consumed. Max. memory is 5.3 GB. [2018-03-29 21:17:38,223 INFO L168 Benchmark]: CACSL2BoogieTranslator took 342.68 ms. Allocated memory is still 301.5 MB. Free memory was 236.7 MB in the beginning and 212.8 MB in the end (delta: 23.9 MB). Peak memory consumption was 23.9 MB. Max. memory is 5.3 GB. [2018-03-29 21:17:38,223 INFO L168 Benchmark]: Boogie Preprocessor took 55.43 ms. Allocated memory is still 301.5 MB. Free memory was 212.8 MB in the beginning and 209.8 MB in the end (delta: 3.0 MB). Peak memory consumption was 3.0 MB. Max. memory is 5.3 GB. [2018-03-29 21:17:38,223 INFO L168 Benchmark]: RCFGBuilder took 882.66 ms. Allocated memory was 301.5 MB in the beginning and 457.2 MB in the end (delta: 155.7 MB). Free memory was 209.8 MB in the beginning and 391.7 MB in the end (delta: -181.9 MB). Peak memory consumption was 22.1 MB. Max. memory is 5.3 GB. [2018-03-29 21:17:38,224 INFO L168 Benchmark]: TraceAbstraction took 150441.62 ms. Allocated memory was 457.2 MB in the beginning and 582.5 MB in the end (delta: 125.3 MB). Free memory was 391.7 MB in the beginning and 516.3 MB in the end (delta: -124.6 MB). Peak memory consumption was 659.7 kB. Max. memory is 5.3 GB. [2018-03-29 21:17:38,225 INFO L344 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.20 ms. Allocated memory is still 301.5 MB. Free memory is still 263.8 MB. There was no memory consumed. Max. memory is 5.3 GB. * CACSL2BoogieTranslator took 342.68 ms. Allocated memory is still 301.5 MB. Free memory was 236.7 MB in the beginning and 212.8 MB in the end (delta: 23.9 MB). Peak memory consumption was 23.9 MB. Max. memory is 5.3 GB. * Boogie Preprocessor took 55.43 ms. Allocated memory is still 301.5 MB. Free memory was 212.8 MB in the beginning and 209.8 MB in the end (delta: 3.0 MB). Peak memory consumption was 3.0 MB. Max. memory is 5.3 GB. * RCFGBuilder took 882.66 ms. Allocated memory was 301.5 MB in the beginning and 457.2 MB in the end (delta: 155.7 MB). Free memory was 209.8 MB in the beginning and 391.7 MB in the end (delta: -181.9 MB). Peak memory consumption was 22.1 MB. Max. memory is 5.3 GB. * TraceAbstraction took 150441.62 ms. Allocated memory was 457.2 MB in the beginning and 582.5 MB in the end (delta: 125.3 MB). Free memory was 391.7 MB in the beginning and 516.3 MB in the end (delta: -124.6 MB). Peak memory consumption was 659.7 kB. Max. memory is 5.3 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - TimeoutResultAtElement [Line: 640]: Timeout (TraceAbstraction) Unable to prove that pointer dereference always succeeds (line 640). Cancelled while BasicCegarLoop was constructing difference of abstraction (224states) and interpolant automaton (currently 3 states, 49 states before enhancement), while PredicateUnifier was unifying predicates, while SimplifyDDAWithTimeout was simplifying term of DAG size 89. - TimeoutResultAtElement [Line: 638]: Timeout (TraceAbstraction) Unable to prove that pointer dereference always succeeds (line 638). Cancelled while BasicCegarLoop was constructing difference of abstraction (224states) and interpolant automaton (currently 3 states, 49 states before enhancement), while PredicateUnifier was unifying predicates, while SimplifyDDAWithTimeout was simplifying term of DAG size 89. - TimeoutResultAtElement [Line: 641]: Timeout (TraceAbstraction) Unable to prove that free always succeeds (line 641). Cancelled while BasicCegarLoop was constructing difference of abstraction (224states) and interpolant automaton (currently 3 states, 49 states before enhancement), while PredicateUnifier was unifying predicates, while SimplifyDDAWithTimeout was simplifying term of DAG size 89. - TimeoutResultAtElement [Line: 643]: Timeout (TraceAbstraction) Unable to prove that free always succeeds (line 643). Cancelled while BasicCegarLoop was constructing difference of abstraction (224states) and interpolant automaton (currently 3 states, 49 states before enhancement), while PredicateUnifier was unifying predicates, while SimplifyDDAWithTimeout was simplifying term of DAG size 89. - TimeoutResultAtElement [Line: 643]: Timeout (TraceAbstraction) Unable to prove that free always succeeds (line 643). Cancelled while BasicCegarLoop was constructing difference of abstraction (224states) and interpolant automaton (currently 3 states, 49 states before enhancement), while PredicateUnifier was unifying predicates, while SimplifyDDAWithTimeout was simplifying term of DAG size 89. - TimeoutResultAtElement [Line: 643]: Timeout (TraceAbstraction) Unable to prove that free always succeeds (line 643). Cancelled while BasicCegarLoop was constructing difference of abstraction (224states) and interpolant automaton (currently 3 states, 49 states before enhancement), while PredicateUnifier was unifying predicates, while SimplifyDDAWithTimeout was simplifying term of DAG size 89. - TimeoutResultAtElement [Line: 638]: Timeout (TraceAbstraction) Unable to prove that pointer dereference always succeeds (line 638). Cancelled while BasicCegarLoop was constructing difference of abstraction (224states) and interpolant automaton (currently 3 states, 49 states before enhancement), while PredicateUnifier was unifying predicates, while SimplifyDDAWithTimeout was simplifying term of DAG size 89. - TimeoutResultAtElement [Line: 630]: Timeout (TraceAbstraction) Unable to prove that all allocated memory was freed (line 630). Cancelled while BasicCegarLoop was constructing difference of abstraction (224states) and interpolant automaton (currently 3 states, 49 states before enhancement), while PredicateUnifier was unifying predicates, while SimplifyDDAWithTimeout was simplifying term of DAG size 89. - TimeoutResultAtElement [Line: 640]: Timeout (TraceAbstraction) Unable to prove that pointer dereference always succeeds (line 640). Cancelled while BasicCegarLoop was constructing difference of abstraction (224states) and interpolant automaton (currently 3 states, 49 states before enhancement), while PredicateUnifier was unifying predicates, while SimplifyDDAWithTimeout was simplifying term of DAG size 89. - TimeoutResultAtElement [Line: 641]: Timeout (TraceAbstraction) Unable to prove that free always succeeds (line 641). Cancelled while BasicCegarLoop was constructing difference of abstraction (224states) and interpolant automaton (currently 3 states, 49 states before enhancement), while PredicateUnifier was unifying predicates, while SimplifyDDAWithTimeout was simplifying term of DAG size 89. - TimeoutResultAtElement [Line: 641]: Timeout (TraceAbstraction) Unable to prove that free always succeeds (line 641). Cancelled while BasicCegarLoop was constructing difference of abstraction (224states) and interpolant automaton (currently 3 states, 49 states before enhancement), while PredicateUnifier was unifying predicates, while SimplifyDDAWithTimeout was simplifying term of DAG size 89. - TimeoutResultAtElement [Line: 640]: Timeout (TraceAbstraction) Unable to prove that pointer dereference always succeeds (line 640). Cancelled while BasicCegarLoop was constructing difference of abstraction (224states) and interpolant automaton (currently 3 states, 49 states before enhancement), while PredicateUnifier was unifying predicates, while SimplifyDDAWithTimeout was simplifying term of DAG size 89. - TimeoutResultAtElement [Line: 640]: Timeout (TraceAbstraction) Unable to prove that pointer dereference always succeeds (line 640). Cancelled while BasicCegarLoop was constructing difference of abstraction (224states) and interpolant automaton (currently 3 states, 49 states before enhancement), while PredicateUnifier was unifying predicates, while SimplifyDDAWithTimeout was simplifying term of DAG size 89. - TimeoutResultAtElement [Line: 641]: Timeout (TraceAbstraction) Unable to prove that free always succeeds (line 641). Cancelled while BasicCegarLoop was constructing difference of abstraction (224states) and interpolant automaton (currently 3 states, 49 states before enhancement), while PredicateUnifier was unifying predicates, while SimplifyDDAWithTimeout was simplifying term of DAG size 89. - TimeoutResultAtElement [Line: 643]: Timeout (TraceAbstraction) Unable to prove that free always succeeds (line 643). Cancelled while BasicCegarLoop was constructing difference of abstraction (224states) and interpolant automaton (currently 3 states, 49 states before enhancement), while PredicateUnifier was unifying predicates, while SimplifyDDAWithTimeout was simplifying term of DAG size 89. - TimeoutResultAtElement [Line: 626]: Timeout (TraceAbstraction) Unable to prove that pointer dereference always succeeds (line 626). Cancelled while BasicCegarLoop was constructing difference of abstraction (224states) and interpolant automaton (currently 3 states, 49 states before enhancement), while PredicateUnifier was unifying predicates, while SimplifyDDAWithTimeout was simplifying term of DAG size 89. - TimeoutResultAtElement [Line: 628]: Timeout (TraceAbstraction) Unable to prove that pointer dereference always succeeds (line 628). Cancelled while BasicCegarLoop was constructing difference of abstraction (224states) and interpolant automaton (currently 3 states, 49 states before enhancement), while PredicateUnifier was unifying predicates, while SimplifyDDAWithTimeout was simplifying term of DAG size 89. - TimeoutResultAtElement [Line: 628]: Timeout (TraceAbstraction) Unable to prove that pointer dereference always succeeds (line 628). Cancelled while BasicCegarLoop was constructing difference of abstraction (224states) and interpolant automaton (currently 3 states, 49 states before enhancement), while PredicateUnifier was unifying predicates, while SimplifyDDAWithTimeout was simplifying term of DAG size 89. - TimeoutResultAtElement [Line: 626]: Timeout (TraceAbstraction) Unable to prove that pointer dereference always succeeds (line 626). Cancelled while BasicCegarLoop was constructing difference of abstraction (224states) and interpolant automaton (currently 3 states, 49 states before enhancement), while PredicateUnifier was unifying predicates, while SimplifyDDAWithTimeout was simplifying term of DAG size 89. - StatisticsResult: Ultimate Automizer benchmark data CFG has 4 procedures, 87 locations, 19 error locations. TIMEOUT Result, 150.3s OverallTime, 29 OverallIterations, 5 TraceHistogramMax, 95.2s AutomataDifference, 0.0s DeadEndRemovalTime, 0.0s HoareAnnotationTime, HoareTripleCheckerStatistics: 1990 SDtfs, 5320 SDslu, 13975 SDs, 0 SdLazy, 10885 SolverSat, 750 SolverUnsat, 68 SolverUnknown, 0 SolverNotchecked, 33.8s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 3205 GetRequests, 2394 SyntacticMatches, 73 SemanticMatches, 737 ConstructedPredicates, 12 IntricatePredicates, 0 DeprecatedPredicates, 5952 ImplicationChecksByTransitivity, 85.1s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=224occurred in iteration=28, 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: 0.4s AutomataMinimizationTime, 28 MinimizatonAttempts, 583 StatesRemovedByMinimization, 23 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TraceCheckStatistics: 0.1s SsaConstructionTime, 0.5s SatisfiabilityAnalysisTime, 52.7s InterpolantComputationTime, 1468 NumberOfCodeBlocks, 1468 NumberOfCodeBlocksAsserted, 29 NumberOfCheckSat, 2878 ConstructedInterpolants, 492 QuantifiedInterpolants, 2061471 SizeOfPredicates, 292 NumberOfNonLiveVariables, 4935 ConjunctsInSsa, 486 ConjunctsInUnsatCore, 58 InterpolantComputations, 30 PerfectInterpolantSequences, 720/1198 InterpolantCoveringCapability, InvariantSynthesisStatistics: No data available, InterpolantConsolidationStatistics: No data available, ReuseStatistics: No data available RESULT: Ultimate could not prove your program: Timeout Written .csv to /storage/ultimate/releaseScripts/default/UAutomizer-linux/../../../releaseScripts/default/UAutomizer-linux/csv/960521-1_1_true-valid-memsafety.i_svcomp-DerefFreeMemtrack-32bit-Automizer_Fixed_noBitfields+AI_EQ_SS.epf_AutomizerC.xml/Csv-Benchmark-0-2018-03-29_21-17-38-231.csv Written .csv to /storage/ultimate/releaseScripts/default/UAutomizer-linux/../../../releaseScripts/default/UAutomizer-linux/csv/960521-1_1_true-valid-memsafety.i_svcomp-DerefFreeMemtrack-32bit-Automizer_Fixed_noBitfields+AI_EQ_SS.epf_AutomizerC.xml/Csv-TraceAbstractionBenchmarks-0-2018-03-29_21-17-38-231.csv Completed graceful shutdown