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/array-memsafety/bubblesort-alloca_true-valid-memsafety_true-termination.i -------------------------------------------------------------------------------- This is Ultimate 0.1.23-835382a-m [2018-04-05 15:19:08,079 INFO L170 SettingsManager]: Resetting all preferences to default values... [2018-04-05 15:19:08,082 INFO L174 SettingsManager]: Resetting UltimateCore preferences to default values [2018-04-05 15:19:08,136 INFO L177 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... 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[2018-04-05 15:19:08,202 INFO L98 SettingsManager]: Beginning loading settings from /storage/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/settings/ai/eq-bench/svcomp-DerefFreeMemtrack-32bit-Automizer_Fixed_noBitfields+AI_EQ_SS.epf [2018-04-05 15:19:08,321 INFO L110 SettingsManager]: Loading preferences was successful [2018-04-05 15:19:08,321 INFO L112 SettingsManager]: Preferences different from defaults after loading the file: [2018-04-05 15:19:08,322 INFO L131 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2018-04-05 15:19:08,322 INFO L133 SettingsManager]: * ultimate.logging.details=de.uni_freiburg.informatik.ultimate.plugins.icfgtransformation=DEBUG; [2018-04-05 15:19:08,323 INFO L131 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2018-04-05 15:19:08,323 INFO L133 SettingsManager]: * to procedures, called more than once=true [2018-04-05 15:19:08,324 INFO L131 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2018-04-05 15:19:08,324 INFO L133 SettingsManager]: * Abstract domain for RCFG-of-the-future=VPDomain [2018-04-05 15:19:08,324 INFO L133 SettingsManager]: * Use the RCFG-of-the-future interface=true [2018-04-05 15:19:08,332 INFO L131 SettingsManager]: Preferences of LTL2Aut differ from their defaults: [2018-04-05 15:19:08,333 INFO L133 SettingsManager]: * Property to check=[] a a: x > 42 [2018-04-05 15:19:08,333 INFO L131 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2018-04-05 15:19:08,333 INFO L133 SettingsManager]: * sizeof long=4 [2018-04-05 15:19:08,333 INFO L133 SettingsManager]: * Check unreachability of error function in SV-COMP mode=false [2018-04-05 15:19:08,334 INFO L133 SettingsManager]: * Overapproximate operations on floating types=true [2018-04-05 15:19:08,334 INFO L133 SettingsManager]: * sizeof POINTER=4 [2018-04-05 15:19:08,335 INFO L133 SettingsManager]: * Check division by zero=IGNORE [2018-04-05 15:19:08,335 INFO L133 SettingsManager]: * Check for the main procedure if all allocated memory was freed=true [2018-04-05 15:19:08,335 INFO L133 SettingsManager]: * SV-COMP memtrack compatibility mode=true [2018-04-05 15:19:08,335 INFO L133 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2018-04-05 15:19:08,335 INFO L133 SettingsManager]: * sizeof long double=12 [2018-04-05 15:19:08,336 INFO L131 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2018-04-05 15:19:08,336 INFO L133 SettingsManager]: * Size of a code block=SingleStatement [2018-04-05 15:19:08,336 INFO L133 SettingsManager]: * Add additional assume for each assert=false [2018-04-05 15:19:08,336 INFO L133 SettingsManager]: * SMT solver=External_DefaultMode [2018-04-05 15:19:08,337 INFO L133 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2018-04-05 15:19:08,337 INFO L131 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2018-04-05 15:19:08,337 INFO L133 SettingsManager]: * Interpolant automaton=TWOTRACK [2018-04-05 15:19:08,337 INFO L133 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2018-04-05 15:19:08,337 INFO L133 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2018-04-05 15:19:08,343 INFO L133 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2018-04-05 15:19:08,343 INFO L133 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2018-04-05 15:19:08,343 INFO L133 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2018-04-05 15:19:08,344 INFO L131 SettingsManager]: Preferences of IcfgTransformer differ from their defaults: [2018-04-05 15:19:08,344 INFO L133 SettingsManager]: * TransformationType=HEAP_SEPARATOR [2018-04-05 15:19:08,345 INFO L131 SettingsManager]: Preferences of Boogie Printer differ from their defaults: [2018-04-05 15:19:08,345 INFO L133 SettingsManager]: * Dump path:=C:\Users\alex\AppData\Local\Temp\ [2018-04-05 15:19:08,424 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2018-04-05 15:19:08,452 INFO L266 ainManager$Toolchain]: [Toolchain 1]: Parser(s) successfully (re)initialized [2018-04-05 15:19:08,461 INFO L222 ainManager$Toolchain]: [Toolchain 1]: Toolchain data selected. [2018-04-05 15:19:08,469 INFO L271 PluginConnector]: Initializing CDTParser... [2018-04-05 15:19:08,470 INFO L276 PluginConnector]: CDTParser initialized [2018-04-05 15:19:08,471 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/array-memsafety/bubblesort-alloca_true-valid-memsafety_true-termination.i [2018-04-05 15:19:09,124 INFO L225 CDTParser]: Created temporary CDT project at /storage/ultimate/releaseScripts/default/UAutomizer-linux/data/FLAG219f4a739 [2018-04-05 15:19:09,658 INFO L287 CDTParser]: IsIndexed: true [2018-04-05 15:19:09,658 INFO L288 CDTParser]: Found 1 translation units. [2018-04-05 15:19:09,659 INFO L168 CDTParser]: Scanning bubblesort-alloca_true-valid-memsafety_true-termination.i [2018-04-05 15:19:09,702 INFO L210 ultiparseSymbolTable]: Include resolver: [2018-04-05 15:19:09,702 INFO L215 ultiparseSymbolTable]: [2018-04-05 15:19:09,702 INFO L218 ultiparseSymbolTable]: Function table: [2018-04-05 15:19:09,702 INFO L221 ultiparseSymbolTable]: Function definition of __U_MULTI_fbubblesort_alloca_true_valid_memsafety_true_termination_i__bubbleSort ('bubbleSort') in bubblesort-alloca_true-valid-memsafety_true-termination.i [2018-04-05 15:19:09,703 INFO L221 ultiparseSymbolTable]: Function definition of __U_MULTI_fbubblesort_alloca_true_valid_memsafety_true_termination_i____bswap_32 ('__bswap_32') in bubblesort-alloca_true-valid-memsafety_true-termination.i [2018-04-05 15:19:09,703 INFO L221 ultiparseSymbolTable]: Function definition of null ('main') in bubblesort-alloca_true-valid-memsafety_true-termination.i [2018-04-05 15:19:09,703 INFO L221 ultiparseSymbolTable]: Function definition of __U_MULTI_fbubblesort_alloca_true_valid_memsafety_true_termination_i____bswap_64 ('__bswap_64') in bubblesort-alloca_true-valid-memsafety_true-termination.i [2018-04-05 15:19:09,703 INFO L227 ultiparseSymbolTable]: Global variable table: [2018-04-05 15:19:09,703 INFO L230 ultiparseSymbolTable]: Global variable declaration of __U_MULTI_fbubblesort_alloca_true_valid_memsafety_true_termination_i____quad_t in bubblesort-alloca_true-valid-memsafety_true-termination.i [2018-04-05 15:19:09,703 INFO L230 ultiparseSymbolTable]: Global variable declaration of __U_MULTI_fbubblesort_alloca_true_valid_memsafety_true_termination_i____off_t in bubblesort-alloca_true-valid-memsafety_true-termination.i [2018-04-05 15:19:09,703 INFO L230 ultiparseSymbolTable]: Global variable declaration of __U_MULTI_fbubblesort_alloca_true_valid_memsafety_true_termination_i____ino64_t in bubblesort-alloca_true-valid-memsafety_true-termination.i [2018-04-05 15:19:09,704 INFO L230 ultiparseSymbolTable]: Global variable declaration of __U_MULTI_fbubblesort_alloca_true_valid_memsafety_true_termination_i__u_long in bubblesort-alloca_true-valid-memsafety_true-termination.i [2018-04-05 15:19:09,704 INFO L230 ultiparseSymbolTable]: Global variable declaration of __U_MULTI_fbubblesort_alloca_true_valid_memsafety_true_termination_i____u_quad_t in bubblesort-alloca_true-valid-memsafety_true-termination.i [2018-04-05 15:19:09,704 INFO L230 ultiparseSymbolTable]: Global variable declaration of __U_MULTI_fbubblesort_alloca_true_valid_memsafety_true_termination_i__daddr_t in bubblesort-alloca_true-valid-memsafety_true-termination.i [2018-04-05 15:19:09,704 INFO L230 ultiparseSymbolTable]: Global variable declaration of __U_MULTI_fbubblesort_alloca_true_valid_memsafety_true_termination_i____fsid_t in bubblesort-alloca_true-valid-memsafety_true-termination.i [2018-04-05 15:19:09,704 INFO L230 ultiparseSymbolTable]: Global variable declaration of __U_MULTI_fbubblesort_alloca_true_valid_memsafety_true_termination_i__ushort in bubblesort-alloca_true-valid-memsafety_true-termination.i [2018-04-05 15:19:09,704 INFO L230 ultiparseSymbolTable]: Global variable declaration of __U_MULTI_fbubblesort_alloca_true_valid_memsafety_true_termination_i__fd_mask in bubblesort-alloca_true-valid-memsafety_true-termination.i [2018-04-05 15:19:09,704 INFO L230 ultiparseSymbolTable]: Global variable declaration of __U_MULTI_fbubblesort_alloca_true_valid_memsafety_true_termination_i____syscall_slong_t in bubblesort-alloca_true-valid-memsafety_true-termination.i [2018-04-05 15:19:09,705 INFO L230 ultiparseSymbolTable]: Global variable declaration of __U_MULTI_fbubblesort_alloca_true_valid_memsafety_true_termination_i__pthread_rwlockattr_t in bubblesort-alloca_true-valid-memsafety_true-termination.i [2018-04-05 15:19:09,705 INFO L230 ultiparseSymbolTable]: Global variable declaration of __U_MULTI_fbubblesort_alloca_true_valid_memsafety_true_termination_i__pthread_barrier_t in bubblesort-alloca_true-valid-memsafety_true-termination.i [2018-04-05 15:19:09,705 INFO L230 ultiparseSymbolTable]: Global variable declaration of __U_MULTI_fbubblesort_alloca_true_valid_memsafety_true_termination_i__suseconds_t in bubblesort-alloca_true-valid-memsafety_true-termination.i [2018-04-05 15:19:09,705 INFO L230 ultiparseSymbolTable]: Global variable declaration of __U_MULTI_fbubblesort_alloca_true_valid_memsafety_true_termination_i__clock_t in bubblesort-alloca_true-valid-memsafety_true-termination.i [2018-04-05 15:19:09,705 INFO L230 ultiparseSymbolTable]: Global variable declaration of __U_MULTI_fbubblesort_alloca_true_valid_memsafety_true_termination_i____clock_t in bubblesort-alloca_true-valid-memsafety_true-termination.i [2018-04-05 15:19:09,705 INFO L230 ultiparseSymbolTable]: Global variable declaration of __U_MULTI_fbubblesort_alloca_true_valid_memsafety_true_termination_i__clockid_t in bubblesort-alloca_true-valid-memsafety_true-termination.i [2018-04-05 15:19:09,705 INFO L230 ultiparseSymbolTable]: Global variable declaration of __U_MULTI_fbubblesort_alloca_true_valid_memsafety_true_termination_i____key_t in bubblesort-alloca_true-valid-memsafety_true-termination.i [2018-04-05 15:19:09,705 INFO L230 ultiparseSymbolTable]: Global variable declaration of __U_MULTI_fbubblesort_alloca_true_valid_memsafety_true_termination_i____loff_t in bubblesort-alloca_true-valid-memsafety_true-termination.i [2018-04-05 15:19:09,706 INFO L230 ultiparseSymbolTable]: Global variable declaration of __U_MULTI_fbubblesort_alloca_true_valid_memsafety_true_termination_i__u_int32_t in bubblesort-alloca_true-valid-memsafety_true-termination.i [2018-04-05 15:19:09,706 INFO L230 ultiparseSymbolTable]: Global variable declaration of __U_MULTI_fbubblesort_alloca_true_valid_memsafety_true_termination_i____uint8_t in bubblesort-alloca_true-valid-memsafety_true-termination.i [2018-04-05 15:19:09,706 INFO L230 ultiparseSymbolTable]: Global variable declaration of __U_MULTI_fbubblesort_alloca_true_valid_memsafety_true_termination_i__fsid_t in bubblesort-alloca_true-valid-memsafety_true-termination.i [2018-04-05 15:19:09,706 INFO L230 ultiparseSymbolTable]: Global variable declaration of __U_MULTI_fbubblesort_alloca_true_valid_memsafety_true_termination_i____WAIT_STATUS in bubblesort-alloca_true-valid-memsafety_true-termination.i [2018-04-05 15:19:09,706 INFO L230 ultiparseSymbolTable]: Global variable declaration of __U_MULTI_fbubblesort_alloca_true_valid_memsafety_true_termination_i__u_quad_t in bubblesort-alloca_true-valid-memsafety_true-termination.i [2018-04-05 15:19:09,706 INFO L230 ultiparseSymbolTable]: Global variable declaration of __U_MULTI_fbubblesort_alloca_true_valid_memsafety_true_termination_i__pthread_condattr_t in bubblesort-alloca_true-valid-memsafety_true-termination.i [2018-04-05 15:19:09,706 INFO L230 ultiparseSymbolTable]: Global variable declaration of __U_MULTI_fbubblesort_alloca_true_valid_memsafety_true_termination_i____pid_t in bubblesort-alloca_true-valid-memsafety_true-termination.i [2018-04-05 15:19:09,707 INFO L230 ultiparseSymbolTable]: Global variable declaration of __U_MULTI_fbubblesort_alloca_true_valid_memsafety_true_termination_i__int64_t in bubblesort-alloca_true-valid-memsafety_true-termination.i [2018-04-05 15:19:09,707 INFO L230 ultiparseSymbolTable]: Global variable declaration of __U_MULTI_fbubblesort_alloca_true_valid_memsafety_true_termination_i____uint16_t in bubblesort-alloca_true-valid-memsafety_true-termination.i [2018-04-05 15:19:09,707 INFO L230 ultiparseSymbolTable]: Global variable declaration of __U_MULTI_fbubblesort_alloca_true_valid_memsafety_true_termination_i____gid_t in bubblesort-alloca_true-valid-memsafety_true-termination.i [2018-04-05 15:19:09,707 INFO L230 ultiparseSymbolTable]: Global variable declaration of __U_MULTI_fbubblesort_alloca_true_valid_memsafety_true_termination_i____daddr_t in bubblesort-alloca_true-valid-memsafety_true-termination.i [2018-04-05 15:19:09,707 INFO L230 ultiparseSymbolTable]: Global variable declaration of __U_MULTI_fbubblesort_alloca_true_valid_memsafety_true_termination_i____blksize_t in bubblesort-alloca_true-valid-memsafety_true-termination.i [2018-04-05 15:19:09,707 INFO L230 ultiparseSymbolTable]: Global variable declaration of __U_MULTI_fbubblesort_alloca_true_valid_memsafety_true_termination_i____qaddr_t in bubblesort-alloca_true-valid-memsafety_true-termination.i [2018-04-05 15:19:09,707 INFO L230 ultiparseSymbolTable]: Global variable declaration of __U_MULTI_fbubblesort_alloca_true_valid_memsafety_true_termination_i____fd_mask in bubblesort-alloca_true-valid-memsafety_true-termination.i [2018-04-05 15:19:09,707 INFO L230 ultiparseSymbolTable]: Global variable declaration of __U_MULTI_fbubblesort_alloca_true_valid_memsafety_true_termination_i____fsblkcnt_t in bubblesort-alloca_true-valid-memsafety_true-termination.i [2018-04-05 15:19:09,708 INFO L230 ultiparseSymbolTable]: Global variable declaration of __U_MULTI_fbubblesort_alloca_true_valid_memsafety_true_termination_i____syscall_ulong_t in bubblesort-alloca_true-valid-memsafety_true-termination.i [2018-04-05 15:19:09,708 INFO L230 ultiparseSymbolTable]: Global variable declaration of __U_MULTI_fbubblesort_alloca_true_valid_memsafety_true_termination_i__pthread_t in bubblesort-alloca_true-valid-memsafety_true-termination.i [2018-04-05 15:19:09,708 INFO L230 ultiparseSymbolTable]: Global variable declaration of __U_MULTI_fbubblesort_alloca_true_valid_memsafety_true_termination_i____int64_t in bubblesort-alloca_true-valid-memsafety_true-termination.i [2018-04-05 15:19:09,708 INFO L230 ultiparseSymbolTable]: Global variable declaration of __U_MULTI_fbubblesort_alloca_true_valid_memsafety_true_termination_i____id_t in bubblesort-alloca_true-valid-memsafety_true-termination.i [2018-04-05 15:19:09,708 INFO L230 ultiparseSymbolTable]: Global variable declaration of __U_MULTI_fbubblesort_alloca_true_valid_memsafety_true_termination_i__uint in bubblesort-alloca_true-valid-memsafety_true-termination.i [2018-04-05 15:19:09,708 INFO L230 ultiparseSymbolTable]: Global variable declaration of __U_MULTI_fbubblesort_alloca_true_valid_memsafety_true_termination_i__loff_t in bubblesort-alloca_true-valid-memsafety_true-termination.i [2018-04-05 15:19:09,708 INFO L230 ultiparseSymbolTable]: Global variable declaration of __U_MULTI_fbubblesort_alloca_true_valid_memsafety_true_termination_i__pthread_rwlock_t in bubblesort-alloca_true-valid-memsafety_true-termination.i [2018-04-05 15:19:09,708 INFO L230 ultiparseSymbolTable]: Global variable declaration of __U_MULTI_fbubblesort_alloca_true_valid_memsafety_true_termination_i____uid_t in bubblesort-alloca_true-valid-memsafety_true-termination.i [2018-04-05 15:19:09,709 INFO L230 ultiparseSymbolTable]: Global variable declaration of __U_MULTI_fbubblesort_alloca_true_valid_memsafety_true_termination_i__pthread_key_t in bubblesort-alloca_true-valid-memsafety_true-termination.i [2018-04-05 15:19:09,709 INFO L230 ultiparseSymbolTable]: Global variable declaration of __U_MULTI_fbubblesort_alloca_true_valid_memsafety_true_termination_i__nlink_t in bubblesort-alloca_true-valid-memsafety_true-termination.i [2018-04-05 15:19:09,709 INFO L230 ultiparseSymbolTable]: Global variable declaration of __U_MULTI_fbubblesort_alloca_true_valid_memsafety_true_termination_i__u_int8_t in bubblesort-alloca_true-valid-memsafety_true-termination.i [2018-04-05 15:19:09,709 INFO L230 ultiparseSymbolTable]: Global variable declaration of __U_MULTI_fbubblesort_alloca_true_valid_memsafety_true_termination_i____u_int in bubblesort-alloca_true-valid-memsafety_true-termination.i [2018-04-05 15:19:09,709 INFO L230 ultiparseSymbolTable]: Global variable declaration of __U_MULTI_fbubblesort_alloca_true_valid_memsafety_true_termination_i____fsword_t in bubblesort-alloca_true-valid-memsafety_true-termination.i [2018-04-05 15:19:09,709 INFO L230 ultiparseSymbolTable]: Global variable declaration of __U_MULTI_fbubblesort_alloca_true_valid_memsafety_true_termination_i____uint64_t in bubblesort-alloca_true-valid-memsafety_true-termination.i [2018-04-05 15:19:09,709 INFO L230 ultiparseSymbolTable]: Global variable declaration of __U_MULTI_fbubblesort_alloca_true_valid_memsafety_true_termination_i____sig_atomic_t in bubblesort-alloca_true-valid-memsafety_true-termination.i [2018-04-05 15:19:09,709 INFO L230 ultiparseSymbolTable]: Global variable declaration of __U_MULTI_fbubblesort_alloca_true_valid_memsafety_true_termination_i____useconds_t in bubblesort-alloca_true-valid-memsafety_true-termination.i [2018-04-05 15:19:09,710 INFO L230 ultiparseSymbolTable]: Global variable declaration of __U_MULTI_fbubblesort_alloca_true_valid_memsafety_true_termination_i__pthread_barrierattr_t in bubblesort-alloca_true-valid-memsafety_true-termination.i [2018-04-05 15:19:09,710 INFO L230 ultiparseSymbolTable]: Global variable declaration of __U_MULTI_fbubblesort_alloca_true_valid_memsafety_true_termination_i____blkcnt_t in bubblesort-alloca_true-valid-memsafety_true-termination.i [2018-04-05 15:19:09,710 INFO L230 ultiparseSymbolTable]: Global variable declaration of __U_MULTI_fbubblesort_alloca_true_valid_memsafety_true_termination_i__time_t in bubblesort-alloca_true-valid-memsafety_true-termination.i [2018-04-05 15:19:09,710 INFO L230 ultiparseSymbolTable]: Global variable declaration of __U_MULTI_fbubblesort_alloca_true_valid_memsafety_true_termination_i__ssize_t in bubblesort-alloca_true-valid-memsafety_true-termination.i [2018-04-05 15:19:09,710 INFO L230 ultiparseSymbolTable]: Global variable declaration of __U_MULTI_fbubblesort_alloca_true_valid_memsafety_true_termination_i__dev_t in bubblesort-alloca_true-valid-memsafety_true-termination.i [2018-04-05 15:19:09,710 INFO L230 ultiparseSymbolTable]: Global variable declaration of __U_MULTI_fbubblesort_alloca_true_valid_memsafety_true_termination_i__id_t in bubblesort-alloca_true-valid-memsafety_true-termination.i [2018-04-05 15:19:09,710 INFO L230 ultiparseSymbolTable]: Global variable declaration of __U_MULTI_fbubblesort_alloca_true_valid_memsafety_true_termination_i__sigset_t in bubblesort-alloca_true-valid-memsafety_true-termination.i [2018-04-05 15:19:09,710 INFO L230 ultiparseSymbolTable]: Global variable declaration of __U_MULTI_fbubblesort_alloca_true_valid_memsafety_true_termination_i____ssize_t in bubblesort-alloca_true-valid-memsafety_true-termination.i [2018-04-05 15:19:09,710 INFO L230 ultiparseSymbolTable]: Global variable declaration of __U_MULTI_fbubblesort_alloca_true_valid_memsafety_true_termination_i__int8_t in bubblesort-alloca_true-valid-memsafety_true-termination.i [2018-04-05 15:19:09,711 INFO L230 ultiparseSymbolTable]: Global variable declaration of __U_MULTI_fbubblesort_alloca_true_valid_memsafety_true_termination_i__pid_t in bubblesort-alloca_true-valid-memsafety_true-termination.i [2018-04-05 15:19:09,711 INFO L230 ultiparseSymbolTable]: Global variable declaration of __U_MULTI_fbubblesort_alloca_true_valid_memsafety_true_termination_i__fsfilcnt_t in bubblesort-alloca_true-valid-memsafety_true-termination.i [2018-04-05 15:19:09,711 INFO L230 ultiparseSymbolTable]: Global variable declaration of __U_MULTI_fbubblesort_alloca_true_valid_memsafety_true_termination_i__ino_t in bubblesort-alloca_true-valid-memsafety_true-termination.i [2018-04-05 15:19:09,711 INFO L230 ultiparseSymbolTable]: Global variable declaration of __U_MULTI_fbubblesort_alloca_true_valid_memsafety_true_termination_i____time_t in bubblesort-alloca_true-valid-memsafety_true-termination.i [2018-04-05 15:19:09,711 INFO L230 ultiparseSymbolTable]: Global variable declaration of __U_MULTI_fbubblesort_alloca_true_valid_memsafety_true_termination_i____intptr_t in bubblesort-alloca_true-valid-memsafety_true-termination.i [2018-04-05 15:19:09,711 INFO L230 ultiparseSymbolTable]: Global variable declaration of __U_MULTI_fbubblesort_alloca_true_valid_memsafety_true_termination_i__u_int64_t in bubblesort-alloca_true-valid-memsafety_true-termination.i [2018-04-05 15:19:09,711 INFO L230 ultiparseSymbolTable]: Global variable declaration of __U_MULTI_fbubblesort_alloca_true_valid_memsafety_true_termination_i__size_t in bubblesort-alloca_true-valid-memsafety_true-termination.i [2018-04-05 15:19:09,711 INFO L230 ultiparseSymbolTable]: Global variable declaration of __U_MULTI_fbubblesort_alloca_true_valid_memsafety_true_termination_i__ldiv_t in bubblesort-alloca_true-valid-memsafety_true-termination.i [2018-04-05 15:19:09,712 INFO L230 ultiparseSymbolTable]: Global variable declaration of __U_MULTI_fbubblesort_alloca_true_valid_memsafety_true_termination_i__gid_t in bubblesort-alloca_true-valid-memsafety_true-termination.i [2018-04-05 15:19:09,712 INFO L230 ultiparseSymbolTable]: Global variable declaration of __U_MULTI_fbubblesort_alloca_true_valid_memsafety_true_termination_i____blkcnt64_t in bubblesort-alloca_true-valid-memsafety_true-termination.i [2018-04-05 15:19:09,712 INFO L230 ultiparseSymbolTable]: Global variable declaration of __U_MULTI_fbubblesort_alloca_true_valid_memsafety_true_termination_i____fsfilcnt64_t in bubblesort-alloca_true-valid-memsafety_true-termination.i [2018-04-05 15:19:09,712 INFO L230 ultiparseSymbolTable]: Global variable declaration of __U_MULTI_fbubblesort_alloca_true_valid_memsafety_true_termination_i__key_t in bubblesort-alloca_true-valid-memsafety_true-termination.i [2018-04-05 15:19:09,712 INFO L230 ultiparseSymbolTable]: Global variable declaration of __U_MULTI_fbubblesort_alloca_true_valid_memsafety_true_termination_i__pthread_mutex_t in bubblesort-alloca_true-valid-memsafety_true-termination.i [2018-04-05 15:19:09,712 INFO L230 ultiparseSymbolTable]: Global variable declaration of __U_MULTI_fbubblesort_alloca_true_valid_memsafety_true_termination_i____nlink_t in bubblesort-alloca_true-valid-memsafety_true-termination.i [2018-04-05 15:19:09,712 INFO L230 ultiparseSymbolTable]: Global variable declaration of __U_MULTI_fbubblesort_alloca_true_valid_memsafety_true_termination_i____socklen_t in bubblesort-alloca_true-valid-memsafety_true-termination.i [2018-04-05 15:19:09,712 INFO L230 ultiparseSymbolTable]: Global variable declaration of __U_MULTI_fbubblesort_alloca_true_valid_memsafety_true_termination_i__int32_t in bubblesort-alloca_true-valid-memsafety_true-termination.i [2018-04-05 15:19:09,713 INFO L230 ultiparseSymbolTable]: Global variable declaration of __U_MULTI_fbubblesort_alloca_true_valid_memsafety_true_termination_i__register_t in bubblesort-alloca_true-valid-memsafety_true-termination.i [2018-04-05 15:19:09,713 INFO L230 ultiparseSymbolTable]: Global variable declaration of __U_MULTI_fbubblesort_alloca_true_valid_memsafety_true_termination_i____u_short in bubblesort-alloca_true-valid-memsafety_true-termination.i [2018-04-05 15:19:09,713 INFO L230 ultiparseSymbolTable]: Global variable declaration of __U_MULTI_fbubblesort_alloca_true_valid_memsafety_true_termination_i__timer_t in bubblesort-alloca_true-valid-memsafety_true-termination.i [2018-04-05 15:19:09,713 INFO L230 ultiparseSymbolTable]: Global variable declaration of __U_MULTI_fbubblesort_alloca_true_valid_memsafety_true_termination_i____int8_t in bubblesort-alloca_true-valid-memsafety_true-termination.i [2018-04-05 15:19:09,713 INFO L230 ultiparseSymbolTable]: Global variable declaration of __U_MULTI_fbubblesort_alloca_true_valid_memsafety_true_termination_i____rlim_t in bubblesort-alloca_true-valid-memsafety_true-termination.i [2018-04-05 15:19:09,713 INFO L230 ultiparseSymbolTable]: Global variable declaration of __U_MULTI_fbubblesort_alloca_true_valid_memsafety_true_termination_i____fsblkcnt64_t in bubblesort-alloca_true-valid-memsafety_true-termination.i [2018-04-05 15:19:09,713 INFO L230 ultiparseSymbolTable]: Global variable declaration of __U_MULTI_fbubblesort_alloca_true_valid_memsafety_true_termination_i____suseconds_t in bubblesort-alloca_true-valid-memsafety_true-termination.i [2018-04-05 15:19:09,713 INFO L230 ultiparseSymbolTable]: Global variable declaration of __U_MULTI_fbubblesort_alloca_true_valid_memsafety_true_termination_i____int32_t in bubblesort-alloca_true-valid-memsafety_true-termination.i [2018-04-05 15:19:09,714 INFO L230 ultiparseSymbolTable]: Global variable declaration of __U_MULTI_fbubblesort_alloca_true_valid_memsafety_true_termination_i____fsfilcnt_t in bubblesort-alloca_true-valid-memsafety_true-termination.i [2018-04-05 15:19:09,714 INFO L230 ultiparseSymbolTable]: Global variable declaration of __U_MULTI_fbubblesort_alloca_true_valid_memsafety_true_termination_i__pthread_mutexattr_t in bubblesort-alloca_true-valid-memsafety_true-termination.i [2018-04-05 15:19:09,714 INFO L230 ultiparseSymbolTable]: Global variable declaration of __U_MULTI_fbubblesort_alloca_true_valid_memsafety_true_termination_i__fsblkcnt_t in bubblesort-alloca_true-valid-memsafety_true-termination.i [2018-04-05 15:19:09,714 INFO L230 ultiparseSymbolTable]: Global variable declaration of __U_MULTI_fbubblesort_alloca_true_valid_memsafety_true_termination_i____timer_t in bubblesort-alloca_true-valid-memsafety_true-termination.i [2018-04-05 15:19:09,714 INFO L230 ultiparseSymbolTable]: Global variable declaration of __U_MULTI_fbubblesort_alloca_true_valid_memsafety_true_termination_i____rlim64_t in bubblesort-alloca_true-valid-memsafety_true-termination.i [2018-04-05 15:19:09,714 INFO L230 ultiparseSymbolTable]: Global variable declaration of __U_MULTI_fbubblesort_alloca_true_valid_memsafety_true_termination_i__u_int in bubblesort-alloca_true-valid-memsafety_true-termination.i [2018-04-05 15:19:09,714 INFO L230 ultiparseSymbolTable]: Global variable declaration of __U_MULTI_fbubblesort_alloca_true_valid_memsafety_true_termination_i____dev_t in bubblesort-alloca_true-valid-memsafety_true-termination.i [2018-04-05 15:19:09,714 INFO L230 ultiparseSymbolTable]: Global variable declaration of __U_MULTI_fbubblesort_alloca_true_valid_memsafety_true_termination_i__int16_t in bubblesort-alloca_true-valid-memsafety_true-termination.i [2018-04-05 15:19:09,714 INFO L230 ultiparseSymbolTable]: Global variable declaration of __U_MULTI_fbubblesort_alloca_true_valid_memsafety_true_termination_i____off64_t in bubblesort-alloca_true-valid-memsafety_true-termination.i [2018-04-05 15:19:09,715 INFO L230 ultiparseSymbolTable]: Global variable declaration of __U_MULTI_fbubblesort_alloca_true_valid_memsafety_true_termination_i____u_char in bubblesort-alloca_true-valid-memsafety_true-termination.i [2018-04-05 15:19:09,715 INFO L230 ultiparseSymbolTable]: Global variable declaration of __U_MULTI_fbubblesort_alloca_true_valid_memsafety_true_termination_i__uid_t in bubblesort-alloca_true-valid-memsafety_true-termination.i [2018-04-05 15:19:09,715 INFO L230 ultiparseSymbolTable]: Global variable declaration of __U_MULTI_fbubblesort_alloca_true_valid_memsafety_true_termination_i__wchar_t in bubblesort-alloca_true-valid-memsafety_true-termination.i [2018-04-05 15:19:09,715 INFO L230 ultiparseSymbolTable]: Global variable declaration of __U_MULTI_fbubblesort_alloca_true_valid_memsafety_true_termination_i____caddr_t in bubblesort-alloca_true-valid-memsafety_true-termination.i [2018-04-05 15:19:09,715 INFO L230 ultiparseSymbolTable]: Global variable declaration of __U_MULTI_fbubblesort_alloca_true_valid_memsafety_true_termination_i__fd_set in bubblesort-alloca_true-valid-memsafety_true-termination.i [2018-04-05 15:19:09,715 INFO L230 ultiparseSymbolTable]: Global variable declaration of __U_MULTI_fbubblesort_alloca_true_valid_memsafety_true_termination_i__lldiv_t in bubblesort-alloca_true-valid-memsafety_true-termination.i [2018-04-05 15:19:09,715 INFO L230 ultiparseSymbolTable]: Global variable declaration of __U_MULTI_fbubblesort_alloca_true_valid_memsafety_true_termination_i__mode_t in bubblesort-alloca_true-valid-memsafety_true-termination.i [2018-04-05 15:19:09,715 INFO L230 ultiparseSymbolTable]: Global variable declaration of __U_MULTI_fbubblesort_alloca_true_valid_memsafety_true_termination_i__pthread_attr_t in bubblesort-alloca_true-valid-memsafety_true-termination.i [2018-04-05 15:19:09,715 INFO L230 ultiparseSymbolTable]: Global variable declaration of __U_MULTI_fbubblesort_alloca_true_valid_memsafety_true_termination_i__caddr_t in bubblesort-alloca_true-valid-memsafety_true-termination.i [2018-04-05 15:19:09,716 INFO L230 ultiparseSymbolTable]: Global variable declaration of __U_MULTI_fbubblesort_alloca_true_valid_memsafety_true_termination_i__quad_t in bubblesort-alloca_true-valid-memsafety_true-termination.i [2018-04-05 15:19:09,716 INFO L230 ultiparseSymbolTable]: Global variable declaration of __U_MULTI_fbubblesort_alloca_true_valid_memsafety_true_termination_i__blkcnt_t in bubblesort-alloca_true-valid-memsafety_true-termination.i [2018-04-05 15:19:09,716 INFO L230 ultiparseSymbolTable]: Global variable declaration of __U_MULTI_fbubblesort_alloca_true_valid_memsafety_true_termination_i____pthread_list_t in bubblesort-alloca_true-valid-memsafety_true-termination.i [2018-04-05 15:19:09,716 INFO L230 ultiparseSymbolTable]: Global variable declaration of __U_MULTI_fbubblesort_alloca_true_valid_memsafety_true_termination_i____clockid_t in bubblesort-alloca_true-valid-memsafety_true-termination.i [2018-04-05 15:19:09,716 INFO L230 ultiparseSymbolTable]: Global variable declaration of __U_MULTI_fbubblesort_alloca_true_valid_memsafety_true_termination_i____u_long in bubblesort-alloca_true-valid-memsafety_true-termination.i [2018-04-05 15:19:09,716 INFO L230 ultiparseSymbolTable]: Global variable declaration of __U_MULTI_fbubblesort_alloca_true_valid_memsafety_true_termination_i__div_t in bubblesort-alloca_true-valid-memsafety_true-termination.i [2018-04-05 15:19:09,716 INFO L230 ultiparseSymbolTable]: Global variable declaration of __U_MULTI_fbubblesort_alloca_true_valid_memsafety_true_termination_i__u_char in bubblesort-alloca_true-valid-memsafety_true-termination.i [2018-04-05 15:19:09,716 INFO L230 ultiparseSymbolTable]: Global variable declaration of __U_MULTI_fbubblesort_alloca_true_valid_memsafety_true_termination_i__off_t in bubblesort-alloca_true-valid-memsafety_true-termination.i [2018-04-05 15:19:09,717 INFO L230 ultiparseSymbolTable]: Global variable declaration of __U_MULTI_fbubblesort_alloca_true_valid_memsafety_true_termination_i__ulong in bubblesort-alloca_true-valid-memsafety_true-termination.i [2018-04-05 15:19:09,717 INFO L230 ultiparseSymbolTable]: Global variable declaration of __U_MULTI_fbubblesort_alloca_true_valid_memsafety_true_termination_i__pthread_cond_t in bubblesort-alloca_true-valid-memsafety_true-termination.i [2018-04-05 15:19:09,717 INFO L230 ultiparseSymbolTable]: Global variable declaration of __U_MULTI_fbubblesort_alloca_true_valid_memsafety_true_termination_i__u_int16_t in bubblesort-alloca_true-valid-memsafety_true-termination.i [2018-04-05 15:19:09,717 INFO L230 ultiparseSymbolTable]: Global variable declaration of __U_MULTI_fbubblesort_alloca_true_valid_memsafety_true_termination_i____int16_t in bubblesort-alloca_true-valid-memsafety_true-termination.i [2018-04-05 15:19:09,717 INFO L230 ultiparseSymbolTable]: Global variable declaration of __U_MULTI_fbubblesort_alloca_true_valid_memsafety_true_termination_i____ino_t in bubblesort-alloca_true-valid-memsafety_true-termination.i [2018-04-05 15:19:09,717 INFO L230 ultiparseSymbolTable]: Global variable declaration of __U_MULTI_fbubblesort_alloca_true_valid_memsafety_true_termination_i__u_short in bubblesort-alloca_true-valid-memsafety_true-termination.i [2018-04-05 15:19:09,717 INFO L230 ultiparseSymbolTable]: Global variable declaration of __U_MULTI_fbubblesort_alloca_true_valid_memsafety_true_termination_i____uint32_t in bubblesort-alloca_true-valid-memsafety_true-termination.i [2018-04-05 15:19:09,717 INFO L230 ultiparseSymbolTable]: Global variable declaration of __U_MULTI_fbubblesort_alloca_true_valid_memsafety_true_termination_i__pthread_once_t in bubblesort-alloca_true-valid-memsafety_true-termination.i [2018-04-05 15:19:09,718 INFO L230 ultiparseSymbolTable]: Global variable declaration of __U_MULTI_fbubblesort_alloca_true_valid_memsafety_true_termination_i____sigset_t in bubblesort-alloca_true-valid-memsafety_true-termination.i [2018-04-05 15:19:09,718 INFO L230 ultiparseSymbolTable]: Global variable declaration of __U_MULTI_fbubblesort_alloca_true_valid_memsafety_true_termination_i__pthread_spinlock_t in bubblesort-alloca_true-valid-memsafety_true-termination.i [2018-04-05 15:19:09,718 INFO L230 ultiparseSymbolTable]: Global variable declaration of __U_MULTI_fbubblesort_alloca_true_valid_memsafety_true_termination_i____mode_t in bubblesort-alloca_true-valid-memsafety_true-termination.i [2018-04-05 15:19:09,718 INFO L230 ultiparseSymbolTable]: Global variable declaration of __U_MULTI_fbubblesort_alloca_true_valid_memsafety_true_termination_i__blksize_t in bubblesort-alloca_true-valid-memsafety_true-termination.i [2018-04-05 15:19:09,789 INFO L330 CDTParser]: Deleted temporary CDT project at /storage/ultimate/releaseScripts/default/UAutomizer-linux/data/FLAG219f4a739 [2018-04-05 15:19:09,798 INFO L304 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2018-04-05 15:19:09,807 INFO L131 ToolchainWalker]: Walking toolchain with 4 elements. [2018-04-05 15:19:09,808 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2018-04-05 15:19:09,808 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2018-04-05 15:19:09,833 INFO L276 PluginConnector]: CACSL2BoogieTranslator initialized [2018-04-05 15:19:09,838 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 05.04 03:19:09" (1/1) ... [2018-04-05 15:19:09,842 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@5bad092e and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 05.04 03:19:09, skipping insertion in model container [2018-04-05 15:19:09,842 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 05.04 03:19:09" (1/1) ... [2018-04-05 15:19:09,884 INFO L167 Dispatcher]: Using SV-COMP mode [2018-04-05 15:19:10,024 INFO L167 Dispatcher]: Using SV-COMP mode [2018-04-05 15:19:10,464 INFO L175 PostProcessor]: Settings: Checked method=main [2018-04-05 15:19:10,589 INFO L175 PostProcessor]: Settings: Checked method=main [2018-04-05 15:19:10,600 INFO L100 SccComputation]: Graph consists of 0 InCaSumBalls and 112 non ball SCCs. Number of states in SCCs 112. [2018-04-05 15:19:10,716 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 05.04 03:19:10 WrapperNode [2018-04-05 15:19:10,716 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2018-04-05 15:19:10,720 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2018-04-05 15:19:10,720 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2018-04-05 15:19:10,720 INFO L276 PluginConnector]: Boogie Preprocessor initialized [2018-04-05 15:19:10,759 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 05.04 03:19:10" (1/1) ... [2018-04-05 15:19:10,763 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 05.04 03:19:10" (1/1) ... [2018-04-05 15:19:10,841 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 05.04 03:19:10" (1/1) ... [2018-04-05 15:19:10,841 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 05.04 03:19:10" (1/1) ... [2018-04-05 15:19:10,876 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 05.04 03:19:10" (1/1) ... [2018-04-05 15:19:10,888 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 05.04 03:19:10" (1/1) ... [2018-04-05 15:19:10,895 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 05.04 03:19:10" (1/1) ... [2018-04-05 15:19:10,907 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2018-04-05 15:19:10,907 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2018-04-05 15:19:10,908 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2018-04-05 15:19:10,908 INFO L276 PluginConnector]: RCFGBuilder initialized [2018-04-05 15:19:10,912 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 05.04 03:19:10" (1/1) ... No working directory specified, using /storage/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2018-04-05 15:19:11,187 INFO L136 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2018-04-05 15:19:11,187 INFO L136 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2018-04-05 15:19:11,187 INFO L136 BoogieDeclarations]: Found implementation of procedure __U_MULTI_fbubblesort_alloca_true_valid_memsafety_true_termination_i____bswap_32 [2018-04-05 15:19:11,187 INFO L136 BoogieDeclarations]: Found implementation of procedure __U_MULTI_fbubblesort_alloca_true_valid_memsafety_true_termination_i____bswap_64 [2018-04-05 15:19:11,188 INFO L136 BoogieDeclarations]: Found implementation of procedure __U_MULTI_fbubblesort_alloca_true_valid_memsafety_true_termination_i__bubbleSort [2018-04-05 15:19:11,190 INFO L136 BoogieDeclarations]: Found implementation of procedure main [2018-04-05 15:19:11,190 INFO L128 BoogieDeclarations]: Found specification of procedure __U_MULTI_fbubblesort_alloca_true_valid_memsafety_true_termination_i____bswap_32 [2018-04-05 15:19:11,190 INFO L128 BoogieDeclarations]: Found specification of procedure __U_MULTI_fbubblesort_alloca_true_valid_memsafety_true_termination_i____bswap_64 [2018-04-05 15:19:11,190 INFO L128 BoogieDeclarations]: Found specification of procedure __ctype_get_mb_cur_max [2018-04-05 15:19:11,190 INFO L128 BoogieDeclarations]: Found specification of procedure atof [2018-04-05 15:19:11,191 INFO L128 BoogieDeclarations]: Found specification of procedure atoi [2018-04-05 15:19:11,191 INFO L128 BoogieDeclarations]: Found specification of procedure atol [2018-04-05 15:19:11,191 INFO L128 BoogieDeclarations]: Found specification of procedure atoll [2018-04-05 15:19:11,191 INFO L128 BoogieDeclarations]: Found specification of procedure strtod [2018-04-05 15:19:11,191 INFO L128 BoogieDeclarations]: Found specification of procedure strtof [2018-04-05 15:19:11,191 INFO L128 BoogieDeclarations]: Found specification of procedure strtold [2018-04-05 15:19:11,191 INFO L128 BoogieDeclarations]: Found specification of procedure strtol [2018-04-05 15:19:11,192 INFO L128 BoogieDeclarations]: Found specification of procedure strtoul [2018-04-05 15:19:11,192 INFO L128 BoogieDeclarations]: Found specification of procedure strtoq [2018-04-05 15:19:11,192 INFO L128 BoogieDeclarations]: Found specification of procedure strtouq [2018-04-05 15:19:11,192 INFO L128 BoogieDeclarations]: Found specification of procedure strtoll [2018-04-05 15:19:11,192 INFO L128 BoogieDeclarations]: Found specification of procedure strtoull [2018-04-05 15:19:11,192 INFO L128 BoogieDeclarations]: Found specification of procedure l64a [2018-04-05 15:19:11,193 INFO L128 BoogieDeclarations]: Found specification of procedure a64l [2018-04-05 15:19:11,206 INFO L128 BoogieDeclarations]: Found specification of procedure select [2018-04-05 15:19:11,206 INFO L128 BoogieDeclarations]: Found specification of procedure pselect [2018-04-05 15:19:11,206 INFO L128 BoogieDeclarations]: Found specification of procedure gnu_dev_major [2018-04-05 15:19:11,207 INFO L128 BoogieDeclarations]: Found specification of procedure gnu_dev_minor [2018-04-05 15:19:11,207 INFO L128 BoogieDeclarations]: Found specification of procedure gnu_dev_makedev [2018-04-05 15:19:11,208 INFO L128 BoogieDeclarations]: Found specification of procedure random [2018-04-05 15:19:11,208 INFO L128 BoogieDeclarations]: Found specification of procedure srandom [2018-04-05 15:19:11,208 INFO L128 BoogieDeclarations]: Found specification of procedure initstate [2018-04-05 15:19:11,208 INFO L128 BoogieDeclarations]: Found specification of procedure setstate [2018-04-05 15:19:11,208 INFO L128 BoogieDeclarations]: Found specification of procedure random_r [2018-04-05 15:19:11,209 INFO L128 BoogieDeclarations]: Found specification of procedure srandom_r [2018-04-05 15:19:11,209 INFO L128 BoogieDeclarations]: Found specification of procedure initstate_r [2018-04-05 15:19:11,209 INFO L128 BoogieDeclarations]: Found specification of procedure setstate_r [2018-04-05 15:19:11,209 INFO L128 BoogieDeclarations]: Found specification of procedure rand [2018-04-05 15:19:11,209 INFO L128 BoogieDeclarations]: Found specification of procedure srand [2018-04-05 15:19:11,209 INFO L128 BoogieDeclarations]: Found specification of procedure rand_r [2018-04-05 15:19:11,209 INFO L128 BoogieDeclarations]: Found specification of procedure drand48 [2018-04-05 15:19:11,210 INFO L128 BoogieDeclarations]: Found specification of procedure erand48 [2018-04-05 15:19:11,210 INFO L128 BoogieDeclarations]: Found specification of procedure lrand48 [2018-04-05 15:19:11,210 INFO L128 BoogieDeclarations]: Found specification of procedure nrand48 [2018-04-05 15:19:11,210 INFO L128 BoogieDeclarations]: Found specification of procedure mrand48 [2018-04-05 15:19:11,210 INFO L128 BoogieDeclarations]: Found specification of procedure jrand48 [2018-04-05 15:19:11,210 INFO L128 BoogieDeclarations]: Found specification of procedure srand48 [2018-04-05 15:19:11,210 INFO L128 BoogieDeclarations]: Found specification of procedure seed48 [2018-04-05 15:19:11,210 INFO L128 BoogieDeclarations]: Found specification of procedure lcong48 [2018-04-05 15:19:11,211 INFO L128 BoogieDeclarations]: Found specification of procedure drand48_r [2018-04-05 15:19:11,211 INFO L128 BoogieDeclarations]: Found specification of procedure erand48_r [2018-04-05 15:19:11,211 INFO L128 BoogieDeclarations]: Found specification of procedure lrand48_r [2018-04-05 15:19:11,211 INFO L128 BoogieDeclarations]: Found specification of procedure nrand48_r [2018-04-05 15:19:11,211 INFO L128 BoogieDeclarations]: Found specification of procedure mrand48_r [2018-04-05 15:19:11,211 INFO L128 BoogieDeclarations]: Found specification of procedure jrand48_r [2018-04-05 15:19:11,211 INFO L128 BoogieDeclarations]: Found specification of procedure srand48_r [2018-04-05 15:19:11,212 INFO L128 BoogieDeclarations]: Found specification of procedure seed48_r [2018-04-05 15:19:11,228 INFO L128 BoogieDeclarations]: Found specification of procedure lcong48_r [2018-04-05 15:19:11,229 INFO L128 BoogieDeclarations]: Found specification of procedure malloc [2018-04-05 15:19:11,229 INFO L128 BoogieDeclarations]: Found specification of procedure calloc [2018-04-05 15:19:11,229 INFO L128 BoogieDeclarations]: Found specification of procedure realloc [2018-04-05 15:19:11,229 INFO L128 BoogieDeclarations]: Found specification of procedure free [2018-04-05 15:19:11,229 INFO L128 BoogieDeclarations]: Found specification of procedure cfree [2018-04-05 15:19:11,229 INFO L128 BoogieDeclarations]: Found specification of procedure alloca [2018-04-05 15:19:11,229 INFO L128 BoogieDeclarations]: Found specification of procedure valloc [2018-04-05 15:19:11,231 INFO L128 BoogieDeclarations]: Found specification of procedure posix_memalign [2018-04-05 15:19:11,231 INFO L128 BoogieDeclarations]: Found specification of procedure abort [2018-04-05 15:19:11,231 INFO L128 BoogieDeclarations]: Found specification of procedure atexit [2018-04-05 15:19:11,231 INFO L128 BoogieDeclarations]: Found specification of procedure on_exit [2018-04-05 15:19:11,231 INFO L128 BoogieDeclarations]: Found specification of procedure exit [2018-04-05 15:19:11,232 INFO L128 BoogieDeclarations]: Found specification of procedure _Exit [2018-04-05 15:19:11,232 INFO L128 BoogieDeclarations]: Found specification of procedure getenv [2018-04-05 15:19:11,232 INFO L128 BoogieDeclarations]: Found specification of procedure putenv [2018-04-05 15:19:11,232 INFO L128 BoogieDeclarations]: Found specification of procedure setenv [2018-04-05 15:19:11,232 INFO L128 BoogieDeclarations]: Found specification of procedure unsetenv [2018-04-05 15:19:11,232 INFO L128 BoogieDeclarations]: Found specification of procedure clearenv [2018-04-05 15:19:11,232 INFO L128 BoogieDeclarations]: Found specification of procedure mktemp [2018-04-05 15:19:11,232 INFO L128 BoogieDeclarations]: Found specification of procedure mkstemp [2018-04-05 15:19:11,233 INFO L128 BoogieDeclarations]: Found specification of procedure mkstemps [2018-04-05 15:19:11,233 INFO L128 BoogieDeclarations]: Found specification of procedure mkdtemp [2018-04-05 15:19:11,233 INFO L128 BoogieDeclarations]: Found specification of procedure system [2018-04-05 15:19:11,233 INFO L128 BoogieDeclarations]: Found specification of procedure realpath [2018-04-05 15:19:11,233 INFO L128 BoogieDeclarations]: Found specification of procedure bsearch [2018-04-05 15:19:11,233 INFO L128 BoogieDeclarations]: Found specification of procedure qsort [2018-04-05 15:19:11,233 INFO L128 BoogieDeclarations]: Found specification of procedure abs [2018-04-05 15:19:11,234 INFO L128 BoogieDeclarations]: Found specification of procedure labs [2018-04-05 15:19:11,234 INFO L128 BoogieDeclarations]: Found specification of procedure llabs [2018-04-05 15:19:11,234 INFO L128 BoogieDeclarations]: Found specification of procedure div [2018-04-05 15:19:11,234 INFO L128 BoogieDeclarations]: Found specification of procedure ldiv [2018-04-05 15:19:11,234 INFO L128 BoogieDeclarations]: Found specification of procedure lldiv [2018-04-05 15:19:11,234 INFO L128 BoogieDeclarations]: Found specification of procedure ecvt [2018-04-05 15:19:11,234 INFO L128 BoogieDeclarations]: Found specification of procedure fcvt [2018-04-05 15:19:11,234 INFO L128 BoogieDeclarations]: Found specification of procedure gcvt [2018-04-05 15:19:11,235 INFO L128 BoogieDeclarations]: Found specification of procedure qecvt [2018-04-05 15:19:11,235 INFO L128 BoogieDeclarations]: Found specification of procedure qfcvt [2018-04-05 15:19:11,235 INFO L128 BoogieDeclarations]: Found specification of procedure qgcvt [2018-04-05 15:19:11,235 INFO L128 BoogieDeclarations]: Found specification of procedure ecvt_r [2018-04-05 15:19:11,235 INFO L128 BoogieDeclarations]: Found specification of procedure fcvt_r [2018-04-05 15:19:11,235 INFO L128 BoogieDeclarations]: Found specification of procedure qecvt_r [2018-04-05 15:19:11,235 INFO L128 BoogieDeclarations]: Found specification of procedure qfcvt_r [2018-04-05 15:19:11,235 INFO L128 BoogieDeclarations]: Found specification of procedure mblen [2018-04-05 15:19:11,235 INFO L128 BoogieDeclarations]: Found specification of procedure mbtowc [2018-04-05 15:19:11,236 INFO L128 BoogieDeclarations]: Found specification of procedure wctomb [2018-04-05 15:19:11,242 INFO L128 BoogieDeclarations]: Found specification of procedure mbstowcs [2018-04-05 15:19:11,242 INFO L128 BoogieDeclarations]: Found specification of procedure wcstombs [2018-04-05 15:19:11,242 INFO L128 BoogieDeclarations]: Found specification of procedure rpmatch [2018-04-05 15:19:11,242 INFO L128 BoogieDeclarations]: Found specification of procedure getsubopt [2018-04-05 15:19:11,242 INFO L128 BoogieDeclarations]: Found specification of procedure getloadavg [2018-04-05 15:19:11,243 INFO L128 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_int [2018-04-05 15:19:11,243 INFO L128 BoogieDeclarations]: Found specification of procedure __U_MULTI_fbubblesort_alloca_true_valid_memsafety_true_termination_i__bubbleSort [2018-04-05 15:19:11,243 INFO L128 BoogieDeclarations]: Found specification of procedure read~int [2018-04-05 15:19:11,243 INFO L128 BoogieDeclarations]: Found specification of procedure write~int [2018-04-05 15:19:11,243 INFO L128 BoogieDeclarations]: Found specification of procedure main [2018-04-05 15:19:11,243 INFO L128 BoogieDeclarations]: Found specification of procedure #Ultimate.alloc [2018-04-05 15:19:11,243 INFO L128 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2018-04-05 15:19:11,243 INFO L128 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2018-04-05 15:19:11,244 INFO L128 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2018-04-05 15:19:11,244 INFO L128 BoogieDeclarations]: Found specification of procedure write~unchecked~int [2018-04-05 15:19:12,199 INFO L259 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2018-04-05 15:19:12,201 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 05.04 03:19:12 BoogieIcfgContainer [2018-04-05 15:19:12,201 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2018-04-05 15:19:12,202 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2018-04-05 15:19:12,203 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2018-04-05 15:19:12,207 INFO L276 PluginConnector]: TraceAbstraction initialized [2018-04-05 15:19:12,208 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 05.04 03:19:09" (1/3) ... [2018-04-05 15:19:12,209 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@7a606d14 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 05.04 03:19:12, skipping insertion in model container [2018-04-05 15:19:12,213 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 05.04 03:19:10" (2/3) ... [2018-04-05 15:19:12,214 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@7a606d14 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 05.04 03:19:12, skipping insertion in model container [2018-04-05 15:19:12,214 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 05.04 03:19:12" (3/3) ... [2018-04-05 15:19:12,230 INFO L107 eAbstractionObserver]: Analyzing ICFG bubblesort-alloca_true-valid-memsafety_true-termination.i [2018-04-05 15:19:12,251 INFO L131 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2018-04-05 15:19:12,297 INFO L143 ceAbstractionStarter]: Appying trace abstraction to program that has 13 error locations. [2018-04-05 15:19:12,422 INFO L128 ementStrategyFactory]: Using default assertion order modulation [2018-04-05 15:19:12,423 INFO L369 AbstractCegarLoop]: Interprodecural is true [2018-04-05 15:19:12,423 INFO L370 AbstractCegarLoop]: Hoare is true [2018-04-05 15:19:12,423 INFO L371 AbstractCegarLoop]: Compute interpolants for FPandBP [2018-04-05 15:19:12,424 INFO L372 AbstractCegarLoop]: Backedges is TWOTRACK [2018-04-05 15:19:12,424 INFO L373 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2018-04-05 15:19:12,425 INFO L374 AbstractCegarLoop]: Difference is false [2018-04-05 15:19:12,425 INFO L375 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2018-04-05 15:19:12,425 INFO L380 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2018-04-05 15:19:12,426 INFO L87 2NestedWordAutomaton]: Mode: main mode - execution starts in main procedure [2018-04-05 15:19:12,452 INFO L276 IsEmpty]: Start isEmpty. Operand 67 states. [2018-04-05 15:19:12,467 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 26 [2018-04-05 15:19:12,467 INFO L347 BasicCegarLoop]: Found error trace [2018-04-05 15:19:12,469 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] [2018-04-05 15:19:12,469 INFO L408 AbstractCegarLoop]: === Iteration 1 === [__U_MULTI_fbubblesort_alloca_true_valid_memsafety_true_termination_i__bubbleSortErr0RequiresViolation, __U_MULTI_fbubblesort_alloca_true_valid_memsafety_true_termination_i__bubbleSortErr9RequiresViolation, __U_MULTI_fbubblesort_alloca_true_valid_memsafety_true_termination_i__bubbleSortErr2RequiresViolation, __U_MULTI_fbubblesort_alloca_true_valid_memsafety_true_termination_i__bubbleSortErr10RequiresViolation, __U_MULTI_fbubblesort_alloca_true_valid_memsafety_true_termination_i__bubbleSortErr6RequiresViolation, __U_MULTI_fbubblesort_alloca_true_valid_memsafety_true_termination_i__bubbleSortErr1RequiresViolation, __U_MULTI_fbubblesort_alloca_true_valid_memsafety_true_termination_i__bubbleSortErr7RequiresViolation, __U_MULTI_fbubblesort_alloca_true_valid_memsafety_true_termination_i__bubbleSortErr11RequiresViolation, __U_MULTI_fbubblesort_alloca_true_valid_memsafety_true_termination_i__bubbleSortErr8RequiresViolation, __U_MULTI_fbubblesort_alloca_true_valid_memsafety_true_termination_i__bubbleSortErr4RequiresViolation, __U_MULTI_fbubblesort_alloca_true_valid_memsafety_true_termination_i__bubbleSortErr5RequiresViolation, __U_MULTI_fbubblesort_alloca_true_valid_memsafety_true_termination_i__bubbleSortErr3RequiresViolation, mainErr0EnsuresViolationMEMORY_LEAK]=== [2018-04-05 15:19:12,488 INFO L82 PathProgramCache]: Analyzing trace with hash -854675194, now seen corresponding path program 1 times No working directory specified, using /storage/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 2 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 2 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2018-04-05 15:19:12,552 INFO L68 tionRefinementEngine]: Using refinement strategy FixedRefinementStrategy [2018-04-05 15:19:12,648 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-04-05 15:19:12,673 INFO L270 TraceCheckSpWp]: Computing forward predicates... [2018-04-05 15:19:12,755 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 6 treesize of output 5 [2018-04-05 15:19:12,764 INFO L267 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2018-04-05 15:19:12,772 INFO L267 ElimStorePlain]: Start of recursive call 1: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-04-05 15:19:12,772 INFO L202 ElimStorePlain]: Needed 2 recursive calls to eliminate 1 variables, input treesize:6, output treesize:5 [2018-04-05 15:19:12,919 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-04-05 15:19:12,919 INFO L314 TraceCheckSpWp]: Computing backward predicates... [2018-04-05 15:19:12,966 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-04-05 15:19:13,052 INFO L320 seRefinementStrategy]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2018-04-05 15:19:13,052 INFO L335 seRefinementStrategy]: Number of different interpolants: perfect sequences [5, 5] imperfect sequences [] total 5 [2018-04-05 15:19:13,055 INFO L442 AbstractCegarLoop]: Interpolant automaton has 6 states [2018-04-05 15:19:13,099 INFO L132 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2018-04-05 15:19:13,100 INFO L133 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2018-04-05 15:19:13,103 INFO L87 Difference]: Start difference. First operand 67 states. Second operand 6 states. [2018-04-05 15:19:13,726 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-04-05 15:19:13,726 INFO L93 Difference]: Finished difference Result 108 states and 123 transitions. [2018-04-05 15:19:13,728 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2018-04-05 15:19:13,730 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 25 [2018-04-05 15:19:13,731 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-04-05 15:19:13,756 INFO L225 Difference]: With dead ends: 108 [2018-04-05 15:19:13,757 INFO L226 Difference]: Without dead ends: 58 [2018-04-05 15:19:13,771 INFO L567 BasicCegarLoop]: 0 DeclaredPredicates, 51 GetRequests, 45 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=17, Invalid=39, Unknown=0, NotChecked=0, Total=56 [2018-04-05 15:19:13,822 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 58 states. [2018-04-05 15:19:13,882 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 58 to 58. [2018-04-05 15:19:13,883 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 58 states. [2018-04-05 15:19:13,886 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 58 states to 58 states and 61 transitions. [2018-04-05 15:19:13,890 INFO L78 Accepts]: Start accepts. Automaton has 58 states and 61 transitions. Word has length 25 [2018-04-05 15:19:13,890 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-04-05 15:19:13,890 INFO L459 AbstractCegarLoop]: Abstraction has 58 states and 61 transitions. [2018-04-05 15:19:13,891 INFO L460 AbstractCegarLoop]: Interpolant automaton has 6 states. [2018-04-05 15:19:13,891 INFO L276 IsEmpty]: Start isEmpty. Operand 58 states and 61 transitions. [2018-04-05 15:19:13,893 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 26 [2018-04-05 15:19:13,894 INFO L347 BasicCegarLoop]: Found error trace [2018-04-05 15:19:13,894 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] [2018-04-05 15:19:13,894 INFO L408 AbstractCegarLoop]: === Iteration 2 === [__U_MULTI_fbubblesort_alloca_true_valid_memsafety_true_termination_i__bubbleSortErr0RequiresViolation, __U_MULTI_fbubblesort_alloca_true_valid_memsafety_true_termination_i__bubbleSortErr9RequiresViolation, __U_MULTI_fbubblesort_alloca_true_valid_memsafety_true_termination_i__bubbleSortErr2RequiresViolation, __U_MULTI_fbubblesort_alloca_true_valid_memsafety_true_termination_i__bubbleSortErr10RequiresViolation, __U_MULTI_fbubblesort_alloca_true_valid_memsafety_true_termination_i__bubbleSortErr6RequiresViolation, __U_MULTI_fbubblesort_alloca_true_valid_memsafety_true_termination_i__bubbleSortErr1RequiresViolation, __U_MULTI_fbubblesort_alloca_true_valid_memsafety_true_termination_i__bubbleSortErr7RequiresViolation, __U_MULTI_fbubblesort_alloca_true_valid_memsafety_true_termination_i__bubbleSortErr11RequiresViolation, __U_MULTI_fbubblesort_alloca_true_valid_memsafety_true_termination_i__bubbleSortErr8RequiresViolation, __U_MULTI_fbubblesort_alloca_true_valid_memsafety_true_termination_i__bubbleSortErr4RequiresViolation, __U_MULTI_fbubblesort_alloca_true_valid_memsafety_true_termination_i__bubbleSortErr5RequiresViolation, __U_MULTI_fbubblesort_alloca_true_valid_memsafety_true_termination_i__bubbleSortErr3RequiresViolation, mainErr0EnsuresViolationMEMORY_LEAK]=== [2018-04-05 15:19:13,894 INFO L82 PathProgramCache]: Analyzing trace with hash -854675193, now seen corresponding path program 1 times No working directory specified, using /storage/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 3 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 3 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2018-04-05 15:19:13,925 INFO L68 tionRefinementEngine]: Using refinement strategy FixedRefinementStrategy [2018-04-05 15:19:13,980 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-04-05 15:19:13,986 INFO L270 TraceCheckSpWp]: Computing forward predicates... [2018-04-05 15:19:14,016 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 8 treesize of output 7 [2018-04-05 15:19:14,016 INFO L267 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2018-04-05 15:19:14,041 INFO L267 ElimStorePlain]: Start of recursive call 1: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-04-05 15:19:14,042 INFO L202 ElimStorePlain]: Needed 2 recursive calls to eliminate 1 variables, input treesize:12, output treesize:11 [2018-04-05 15:19:14,790 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-04-05 15:19:14,791 INFO L314 TraceCheckSpWp]: Computing backward predicates... [2018-04-05 15:19:15,378 WARN L148 SmtUtils]: Spent 266ms on a formula simplification that was a NOOP. DAG size: 14 [2018-04-05 15:19:15,944 WARN L148 SmtUtils]: Spent 145ms on a formula simplification that was a NOOP. DAG size: 24 [2018-04-05 15:19:16,898 WARN L148 SmtUtils]: Spent 164ms on a formula simplification that was a NOOP. DAG size: 26 [2018-04-05 15:19:17,629 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-04-05 15:19:17,708 INFO L320 seRefinementStrategy]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2018-04-05 15:19:17,708 INFO L335 seRefinementStrategy]: Number of different interpolants: perfect sequences [9, 9] imperfect sequences [] total 17 [2018-04-05 15:19:17,710 INFO L442 AbstractCegarLoop]: Interpolant automaton has 18 states [2018-04-05 15:19:17,711 INFO L132 InterpolantAutomaton]: Constructing interpolant automaton starting with 18 interpolants. [2018-04-05 15:19:17,713 INFO L133 InterpolantAutomaton]: CoverageRelationStatistics Valid=45, Invalid=261, Unknown=0, NotChecked=0, Total=306 [2018-04-05 15:19:17,713 INFO L87 Difference]: Start difference. First operand 58 states and 61 transitions. Second operand 18 states. [2018-04-05 15:19:19,248 WARN L148 SmtUtils]: Spent 101ms on a formula simplification that was a NOOP. DAG size: 32 [2018-04-05 15:19:19,715 WARN L148 SmtUtils]: Spent 121ms on a formula simplification that was a NOOP. DAG size: 38 [2018-04-05 15:19:20,074 WARN L151 SmtUtils]: Spent 156ms on a formula simplification. DAG size of input: 44 DAG size of output 36 [2018-04-05 15:19:20,456 WARN L148 SmtUtils]: Spent 138ms on a formula simplification that was a NOOP. DAG size: 35 [2018-04-05 15:19:21,245 WARN L151 SmtUtils]: Spent 179ms on a formula simplification. DAG size of input: 40 DAG size of output 38 [2018-04-05 15:19:21,691 WARN L151 SmtUtils]: Spent 276ms on a formula simplification. DAG size of input: 38 DAG size of output 37 [2018-04-05 15:19:21,984 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-04-05 15:19:21,984 INFO L93 Difference]: Finished difference Result 95 states and 106 transitions. [2018-04-05 15:19:21,985 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 18 states. [2018-04-05 15:19:21,985 INFO L78 Accepts]: Start accepts. Automaton has 18 states. Word has length 25 [2018-04-05 15:19:21,985 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-04-05 15:19:21,994 INFO L225 Difference]: With dead ends: 95 [2018-04-05 15:19:21,994 INFO L226 Difference]: Without dead ends: 89 [2018-04-05 15:19:21,996 INFO L567 BasicCegarLoop]: 0 DeclaredPredicates, 62 GetRequests, 33 SyntacticMatches, 0 SemanticMatches, 29 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 96 ImplicationChecksByTransitivity, 5.5s TimeCoverageRelationStatistics Valid=213, Invalid=717, Unknown=0, NotChecked=0, Total=930 [2018-04-05 15:19:21,996 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 89 states. [2018-04-05 15:19:22,018 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 89 to 61. [2018-04-05 15:19:22,019 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 61 states. [2018-04-05 15:19:22,020 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 61 states to 61 states and 66 transitions. [2018-04-05 15:19:22,021 INFO L78 Accepts]: Start accepts. Automaton has 61 states and 66 transitions. Word has length 25 [2018-04-05 15:19:22,023 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-04-05 15:19:22,023 INFO L459 AbstractCegarLoop]: Abstraction has 61 states and 66 transitions. [2018-04-05 15:19:22,023 INFO L460 AbstractCegarLoop]: Interpolant automaton has 18 states. [2018-04-05 15:19:22,023 INFO L276 IsEmpty]: Start isEmpty. Operand 61 states and 66 transitions. [2018-04-05 15:19:22,024 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 28 [2018-04-05 15:19:22,024 INFO L347 BasicCegarLoop]: Found error trace [2018-04-05 15:19:22,025 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] [2018-04-05 15:19:22,025 INFO L408 AbstractCegarLoop]: === Iteration 3 === [__U_MULTI_fbubblesort_alloca_true_valid_memsafety_true_termination_i__bubbleSortErr0RequiresViolation, __U_MULTI_fbubblesort_alloca_true_valid_memsafety_true_termination_i__bubbleSortErr9RequiresViolation, __U_MULTI_fbubblesort_alloca_true_valid_memsafety_true_termination_i__bubbleSortErr2RequiresViolation, __U_MULTI_fbubblesort_alloca_true_valid_memsafety_true_termination_i__bubbleSortErr10RequiresViolation, __U_MULTI_fbubblesort_alloca_true_valid_memsafety_true_termination_i__bubbleSortErr6RequiresViolation, __U_MULTI_fbubblesort_alloca_true_valid_memsafety_true_termination_i__bubbleSortErr1RequiresViolation, __U_MULTI_fbubblesort_alloca_true_valid_memsafety_true_termination_i__bubbleSortErr7RequiresViolation, __U_MULTI_fbubblesort_alloca_true_valid_memsafety_true_termination_i__bubbleSortErr11RequiresViolation, __U_MULTI_fbubblesort_alloca_true_valid_memsafety_true_termination_i__bubbleSortErr8RequiresViolation, __U_MULTI_fbubblesort_alloca_true_valid_memsafety_true_termination_i__bubbleSortErr4RequiresViolation, __U_MULTI_fbubblesort_alloca_true_valid_memsafety_true_termination_i__bubbleSortErr5RequiresViolation, __U_MULTI_fbubblesort_alloca_true_valid_memsafety_true_termination_i__bubbleSortErr3RequiresViolation, mainErr0EnsuresViolationMEMORY_LEAK]=== [2018-04-05 15:19:22,025 INFO L82 PathProgramCache]: Analyzing trace with hash -1183117181, now seen corresponding path program 1 times No working directory specified, using /storage/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 4 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 4 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2018-04-05 15:19:22,058 INFO L68 tionRefinementEngine]: Using refinement strategy FixedRefinementStrategy [2018-04-05 15:19:22,129 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-04-05 15:19:22,137 INFO L270 TraceCheckSpWp]: Computing forward predicates... [2018-04-05 15:19:22,243 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-04-05 15:19:22,243 INFO L314 TraceCheckSpWp]: Computing backward predicates... [2018-04-05 15:19:22,606 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-04-05 15:19:22,664 INFO L320 seRefinementStrategy]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2018-04-05 15:19:22,664 INFO L335 seRefinementStrategy]: Number of different interpolants: perfect sequences [6, 6] imperfect sequences [] total 8 [2018-04-05 15:19:22,665 INFO L442 AbstractCegarLoop]: Interpolant automaton has 8 states [2018-04-05 15:19:22,665 INFO L132 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2018-04-05 15:19:22,665 INFO L133 InterpolantAutomaton]: CoverageRelationStatistics Valid=17, Invalid=39, Unknown=0, NotChecked=0, Total=56 [2018-04-05 15:19:22,666 INFO L87 Difference]: Start difference. First operand 61 states and 66 transitions. Second operand 8 states. [2018-04-05 15:19:22,980 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-04-05 15:19:22,980 INFO L93 Difference]: Finished difference Result 91 states and 97 transitions. [2018-04-05 15:19:22,986 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2018-04-05 15:19:22,986 INFO L78 Accepts]: Start accepts. Automaton has 8 states. Word has length 27 [2018-04-05 15:19:22,987 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-04-05 15:19:22,995 INFO L225 Difference]: With dead ends: 91 [2018-04-05 15:19:22,995 INFO L226 Difference]: Without dead ends: 84 [2018-04-05 15:19:22,996 INFO L567 BasicCegarLoop]: 0 DeclaredPredicates, 56 GetRequests, 44 SyntacticMatches, 3 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 4 ImplicationChecksByTransitivity, 0.4s TimeCoverageRelationStatistics Valid=38, Invalid=72, Unknown=0, NotChecked=0, Total=110 [2018-04-05 15:19:22,996 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 84 states. [2018-04-05 15:19:23,013 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 84 to 61. [2018-04-05 15:19:23,014 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 61 states. [2018-04-05 15:19:23,018 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 61 states to 61 states and 65 transitions. [2018-04-05 15:19:23,019 INFO L78 Accepts]: Start accepts. Automaton has 61 states and 65 transitions. Word has length 27 [2018-04-05 15:19:23,019 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-04-05 15:19:23,019 INFO L459 AbstractCegarLoop]: Abstraction has 61 states and 65 transitions. [2018-04-05 15:19:23,019 INFO L460 AbstractCegarLoop]: Interpolant automaton has 8 states. [2018-04-05 15:19:23,019 INFO L276 IsEmpty]: Start isEmpty. Operand 61 states and 65 transitions. [2018-04-05 15:19:23,020 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 34 [2018-04-05 15:19:23,032 INFO L347 BasicCegarLoop]: Found error trace [2018-04-05 15:19:23,033 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] [2018-04-05 15:19:23,033 INFO L408 AbstractCegarLoop]: === Iteration 4 === [__U_MULTI_fbubblesort_alloca_true_valid_memsafety_true_termination_i__bubbleSortErr0RequiresViolation, __U_MULTI_fbubblesort_alloca_true_valid_memsafety_true_termination_i__bubbleSortErr9RequiresViolation, __U_MULTI_fbubblesort_alloca_true_valid_memsafety_true_termination_i__bubbleSortErr2RequiresViolation, __U_MULTI_fbubblesort_alloca_true_valid_memsafety_true_termination_i__bubbleSortErr10RequiresViolation, __U_MULTI_fbubblesort_alloca_true_valid_memsafety_true_termination_i__bubbleSortErr6RequiresViolation, __U_MULTI_fbubblesort_alloca_true_valid_memsafety_true_termination_i__bubbleSortErr1RequiresViolation, __U_MULTI_fbubblesort_alloca_true_valid_memsafety_true_termination_i__bubbleSortErr7RequiresViolation, __U_MULTI_fbubblesort_alloca_true_valid_memsafety_true_termination_i__bubbleSortErr11RequiresViolation, __U_MULTI_fbubblesort_alloca_true_valid_memsafety_true_termination_i__bubbleSortErr8RequiresViolation, __U_MULTI_fbubblesort_alloca_true_valid_memsafety_true_termination_i__bubbleSortErr4RequiresViolation, __U_MULTI_fbubblesort_alloca_true_valid_memsafety_true_termination_i__bubbleSortErr5RequiresViolation, __U_MULTI_fbubblesort_alloca_true_valid_memsafety_true_termination_i__bubbleSortErr3RequiresViolation, mainErr0EnsuresViolationMEMORY_LEAK]=== [2018-04-05 15:19:23,033 INFO L82 PathProgramCache]: Analyzing trace with hash 1955979929, now seen corresponding path program 1 times No working directory specified, using /storage/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 5 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 5 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2018-04-05 15:19:23,058 INFO L68 tionRefinementEngine]: Using refinement strategy FixedRefinementStrategy [2018-04-05 15:19:23,103 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-04-05 15:19:23,110 INFO L270 TraceCheckSpWp]: Computing forward predicates... [2018-04-05 15:19:23,237 INFO L134 CoverageAnalysis]: Checked inductivity of 5 backedges. 5 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-04-05 15:19:23,237 INFO L314 TraceCheckSpWp]: Computing backward predicates... [2018-04-05 15:19:23,335 INFO L134 CoverageAnalysis]: Checked inductivity of 5 backedges. 5 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-04-05 15:19:23,400 INFO L320 seRefinementStrategy]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2018-04-05 15:19:23,400 INFO L335 seRefinementStrategy]: Number of different interpolants: perfect sequences [6, 6] imperfect sequences [] total 6 [2018-04-05 15:19:23,401 INFO L442 AbstractCegarLoop]: Interpolant automaton has 6 states [2018-04-05 15:19:23,401 INFO L132 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2018-04-05 15:19:23,401 INFO L133 InterpolantAutomaton]: CoverageRelationStatistics Valid=10, Invalid=20, Unknown=0, NotChecked=0, Total=30 [2018-04-05 15:19:23,402 INFO L87 Difference]: Start difference. First operand 61 states and 65 transitions. Second operand 6 states. [2018-04-05 15:19:23,825 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-04-05 15:19:23,825 INFO L93 Difference]: Finished difference Result 122 states and 131 transitions. [2018-04-05 15:19:23,826 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2018-04-05 15:19:23,826 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 33 [2018-04-05 15:19:23,826 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-04-05 15:19:23,827 INFO L225 Difference]: With dead ends: 122 [2018-04-05 15:19:23,828 INFO L226 Difference]: Without dead ends: 88 [2018-04-05 15:19:23,828 INFO L567 BasicCegarLoop]: 0 DeclaredPredicates, 70 GetRequests, 58 SyntacticMatches, 4 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 4 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=35, Invalid=55, Unknown=0, NotChecked=0, Total=90 [2018-04-05 15:19:23,829 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 88 states. [2018-04-05 15:19:23,843 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 88 to 68. [2018-04-05 15:19:23,843 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 68 states. [2018-04-05 15:19:23,844 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 68 states to 68 states and 73 transitions. [2018-04-05 15:19:23,845 INFO L78 Accepts]: Start accepts. Automaton has 68 states and 73 transitions. Word has length 33 [2018-04-05 15:19:23,845 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-04-05 15:19:23,845 INFO L459 AbstractCegarLoop]: Abstraction has 68 states and 73 transitions. [2018-04-05 15:19:23,845 INFO L460 AbstractCegarLoop]: Interpolant automaton has 6 states. [2018-04-05 15:19:23,845 INFO L276 IsEmpty]: Start isEmpty. Operand 68 states and 73 transitions. [2018-04-05 15:19:23,846 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 36 [2018-04-05 15:19:23,846 INFO L347 BasicCegarLoop]: Found error trace [2018-04-05 15:19:23,861 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] [2018-04-05 15:19:23,861 INFO L408 AbstractCegarLoop]: === Iteration 5 === [__U_MULTI_fbubblesort_alloca_true_valid_memsafety_true_termination_i__bubbleSortErr0RequiresViolation, __U_MULTI_fbubblesort_alloca_true_valid_memsafety_true_termination_i__bubbleSortErr9RequiresViolation, __U_MULTI_fbubblesort_alloca_true_valid_memsafety_true_termination_i__bubbleSortErr2RequiresViolation, __U_MULTI_fbubblesort_alloca_true_valid_memsafety_true_termination_i__bubbleSortErr10RequiresViolation, __U_MULTI_fbubblesort_alloca_true_valid_memsafety_true_termination_i__bubbleSortErr6RequiresViolation, __U_MULTI_fbubblesort_alloca_true_valid_memsafety_true_termination_i__bubbleSortErr1RequiresViolation, __U_MULTI_fbubblesort_alloca_true_valid_memsafety_true_termination_i__bubbleSortErr7RequiresViolation, __U_MULTI_fbubblesort_alloca_true_valid_memsafety_true_termination_i__bubbleSortErr11RequiresViolation, __U_MULTI_fbubblesort_alloca_true_valid_memsafety_true_termination_i__bubbleSortErr8RequiresViolation, __U_MULTI_fbubblesort_alloca_true_valid_memsafety_true_termination_i__bubbleSortErr4RequiresViolation, __U_MULTI_fbubblesort_alloca_true_valid_memsafety_true_termination_i__bubbleSortErr5RequiresViolation, __U_MULTI_fbubblesort_alloca_true_valid_memsafety_true_termination_i__bubbleSortErr3RequiresViolation, mainErr0EnsuresViolationMEMORY_LEAK]=== [2018-04-05 15:19:23,861 INFO L82 PathProgramCache]: Analyzing trace with hash -1677974123, now seen corresponding path program 1 times No working directory specified, using /storage/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 6 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 6 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2018-04-05 15:19:23,882 INFO L68 tionRefinementEngine]: Using refinement strategy FixedRefinementStrategy [2018-04-05 15:19:23,949 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-04-05 15:19:23,952 INFO L270 TraceCheckSpWp]: Computing forward predicates... [2018-04-05 15:19:24,018 INFO L700 Elim1Store]: detected not equals via solver [2018-04-05 15:19:24,019 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 12 treesize of output 5 [2018-04-05 15:19:24,020 INFO L267 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2018-04-05 15:19:24,028 INFO L267 ElimStorePlain]: Start of recursive call 1: 1 dim-0 vars, 1 dim-1 vars, End of recursive call: 1 dim-0 vars, and 1 xjuncts. [2018-04-05 15:19:24,028 INFO L202 ElimStorePlain]: Needed 2 recursive calls to eliminate 2 variables, input treesize:12, output treesize:5 [2018-04-05 15:19:24,102 WARN L1033 $PredicateComparison]: unable to prove that (exists ((|main_#t~malloc9.base| Int)) (and (= (store |c_old(#valid)| |main_#t~malloc9.base| 0) |c_#valid|) (= 0 (select |c_old(#valid)| |main_#t~malloc9.base|)))) is different from true [2018-04-05 15:19:24,124 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2018-04-05 15:19:24,124 INFO L314 TraceCheckSpWp]: Computing backward predicates... [2018-04-05 15:19:24,197 WARN L1011 $PredicateComparison]: unable to prove that (forall ((|v_main_#t~malloc9.base_10| Int)) (or (not (= 0 (select |c_#valid| |v_main_#t~malloc9.base_10|))) (= |c_old(#valid)| (store |c_#valid| |v_main_#t~malloc9.base_10| 0)))) is different from false [2018-04-05 15:19:24,255 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2018-04-05 15:19:24,296 INFO L320 seRefinementStrategy]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2018-04-05 15:19:24,296 INFO L335 seRefinementStrategy]: Number of different interpolants: perfect sequences [5, 4] imperfect sequences [] total 7 [2018-04-05 15:19:24,296 INFO L442 AbstractCegarLoop]: Interpolant automaton has 8 states [2018-04-05 15:19:24,297 INFO L132 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2018-04-05 15:19:24,297 INFO L133 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=21, Unknown=2, NotChecked=18, Total=56 [2018-04-05 15:19:24,297 INFO L87 Difference]: Start difference. First operand 68 states and 73 transitions. Second operand 8 states. [2018-04-05 15:19:24,358 WARN L1011 $PredicateComparison]: unable to prove that (and (= |c_#valid| |c_old(#valid)|) (forall ((|v_main_#t~malloc9.base_10| Int)) (or (not (= 0 (select |c_#valid| |v_main_#t~malloc9.base_10|))) (= |c_old(#valid)| (store |c_#valid| |v_main_#t~malloc9.base_10| 0))))) is different from false [2018-04-05 15:19:25,113 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-04-05 15:19:25,113 INFO L93 Difference]: Finished difference Result 76 states and 81 transitions. [2018-04-05 15:19:25,122 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2018-04-05 15:19:25,122 INFO L78 Accepts]: Start accepts. Automaton has 8 states. Word has length 35 [2018-04-05 15:19:25,123 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-04-05 15:19:25,126 INFO L225 Difference]: With dead ends: 76 [2018-04-05 15:19:25,126 INFO L226 Difference]: Without dead ends: 71 [2018-04-05 15:19:25,127 INFO L567 BasicCegarLoop]: 0 DeclaredPredicates, 74 GetRequests, 63 SyntacticMatches, 1 SemanticMatches, 10 ConstructedPredicates, 3 IntricatePredicates, 0 DeprecatedPredicates, 5 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=29, Invalid=52, Unknown=3, NotChecked=48, Total=132 [2018-04-05 15:19:25,127 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 71 states. [2018-04-05 15:19:25,170 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 71 to 71. [2018-04-05 15:19:25,170 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 71 states. [2018-04-05 15:19:25,171 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 71 states to 71 states and 76 transitions. [2018-04-05 15:19:25,189 INFO L78 Accepts]: Start accepts. Automaton has 71 states and 76 transitions. Word has length 35 [2018-04-05 15:19:25,189 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-04-05 15:19:25,189 INFO L459 AbstractCegarLoop]: Abstraction has 71 states and 76 transitions. [2018-04-05 15:19:25,190 INFO L460 AbstractCegarLoop]: Interpolant automaton has 8 states. [2018-04-05 15:19:25,190 INFO L276 IsEmpty]: Start isEmpty. Operand 71 states and 76 transitions. [2018-04-05 15:19:25,191 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 36 [2018-04-05 15:19:25,192 INFO L347 BasicCegarLoop]: Found error trace [2018-04-05 15:19:25,192 INFO L355 BasicCegarLoop]: trace histogram [2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-04-05 15:19:25,192 INFO L408 AbstractCegarLoop]: === Iteration 6 === [__U_MULTI_fbubblesort_alloca_true_valid_memsafety_true_termination_i__bubbleSortErr0RequiresViolation, __U_MULTI_fbubblesort_alloca_true_valid_memsafety_true_termination_i__bubbleSortErr9RequiresViolation, __U_MULTI_fbubblesort_alloca_true_valid_memsafety_true_termination_i__bubbleSortErr2RequiresViolation, __U_MULTI_fbubblesort_alloca_true_valid_memsafety_true_termination_i__bubbleSortErr10RequiresViolation, __U_MULTI_fbubblesort_alloca_true_valid_memsafety_true_termination_i__bubbleSortErr6RequiresViolation, __U_MULTI_fbubblesort_alloca_true_valid_memsafety_true_termination_i__bubbleSortErr1RequiresViolation, __U_MULTI_fbubblesort_alloca_true_valid_memsafety_true_termination_i__bubbleSortErr7RequiresViolation, __U_MULTI_fbubblesort_alloca_true_valid_memsafety_true_termination_i__bubbleSortErr11RequiresViolation, __U_MULTI_fbubblesort_alloca_true_valid_memsafety_true_termination_i__bubbleSortErr8RequiresViolation, __U_MULTI_fbubblesort_alloca_true_valid_memsafety_true_termination_i__bubbleSortErr4RequiresViolation, __U_MULTI_fbubblesort_alloca_true_valid_memsafety_true_termination_i__bubbleSortErr5RequiresViolation, __U_MULTI_fbubblesort_alloca_true_valid_memsafety_true_termination_i__bubbleSortErr3RequiresViolation, mainErr0EnsuresViolationMEMORY_LEAK]=== [2018-04-05 15:19:25,192 INFO L82 PathProgramCache]: Analyzing trace with hash 1049094811, now seen corresponding path program 1 times No working directory specified, using /storage/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 7 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 7 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2018-04-05 15:19:25,237 INFO L68 tionRefinementEngine]: Using refinement strategy FixedRefinementStrategy [2018-04-05 15:19:25,279 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-04-05 15:19:25,282 INFO L270 TraceCheckSpWp]: Computing forward predicates... [2018-04-05 15:19:25,703 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 3 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-04-05 15:19:25,704 INFO L314 TraceCheckSpWp]: Computing backward predicates... [2018-04-05 15:19:25,951 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 11 treesize of output 9 [2018-04-05 15:19:25,951 INFO L267 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2018-04-05 15:19:25,968 INFO L267 ElimStorePlain]: Start of recursive call 1: 1 dim-0 vars, 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-04-05 15:19:25,968 INFO L202 ElimStorePlain]: Needed 2 recursive calls to eliminate 2 variables, input treesize:19, output treesize:7 [2018-04-05 15:19:26,655 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 3 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-04-05 15:19:26,723 INFO L320 seRefinementStrategy]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2018-04-05 15:19:26,723 INFO L335 seRefinementStrategy]: Number of different interpolants: perfect sequences [9, 9] imperfect sequences [] total 17 [2018-04-05 15:19:26,724 INFO L442 AbstractCegarLoop]: Interpolant automaton has 18 states [2018-04-05 15:19:26,724 INFO L132 InterpolantAutomaton]: Constructing interpolant automaton starting with 18 interpolants. [2018-04-05 15:19:26,724 INFO L133 InterpolantAutomaton]: CoverageRelationStatistics Valid=56, Invalid=250, Unknown=0, NotChecked=0, Total=306 [2018-04-05 15:19:26,725 INFO L87 Difference]: Start difference. First operand 71 states and 76 transitions. Second operand 18 states. [2018-04-05 15:19:28,456 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-04-05 15:19:28,456 INFO L93 Difference]: Finished difference Result 97 states and 104 transitions. [2018-04-05 15:19:28,457 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2018-04-05 15:19:28,457 INFO L78 Accepts]: Start accepts. Automaton has 18 states. Word has length 35 [2018-04-05 15:19:28,457 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-04-05 15:19:28,459 INFO L225 Difference]: With dead ends: 97 [2018-04-05 15:19:28,459 INFO L226 Difference]: Without dead ends: 95 [2018-04-05 15:19:28,460 INFO L567 BasicCegarLoop]: 0 DeclaredPredicates, 79 GetRequests, 53 SyntacticMatches, 0 SemanticMatches, 26 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 85 ImplicationChecksByTransitivity, 2.1s TimeCoverageRelationStatistics Valid=187, Invalid=569, Unknown=0, NotChecked=0, Total=756 [2018-04-05 15:19:28,460 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 95 states. [2018-04-05 15:19:28,509 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 95 to 67. [2018-04-05 15:19:28,509 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 67 states. [2018-04-05 15:19:28,518 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 67 states to 67 states and 71 transitions. [2018-04-05 15:19:28,519 INFO L78 Accepts]: Start accepts. Automaton has 67 states and 71 transitions. Word has length 35 [2018-04-05 15:19:28,519 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-04-05 15:19:28,519 INFO L459 AbstractCegarLoop]: Abstraction has 67 states and 71 transitions. [2018-04-05 15:19:28,519 INFO L460 AbstractCegarLoop]: Interpolant automaton has 18 states. [2018-04-05 15:19:28,519 INFO L276 IsEmpty]: Start isEmpty. Operand 67 states and 71 transitions. [2018-04-05 15:19:28,521 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 37 [2018-04-05 15:19:28,521 INFO L347 BasicCegarLoop]: Found error trace [2018-04-05 15:19:28,521 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] [2018-04-05 15:19:28,521 INFO L408 AbstractCegarLoop]: === Iteration 7 === [__U_MULTI_fbubblesort_alloca_true_valid_memsafety_true_termination_i__bubbleSortErr0RequiresViolation, __U_MULTI_fbubblesort_alloca_true_valid_memsafety_true_termination_i__bubbleSortErr9RequiresViolation, __U_MULTI_fbubblesort_alloca_true_valid_memsafety_true_termination_i__bubbleSortErr2RequiresViolation, __U_MULTI_fbubblesort_alloca_true_valid_memsafety_true_termination_i__bubbleSortErr10RequiresViolation, __U_MULTI_fbubblesort_alloca_true_valid_memsafety_true_termination_i__bubbleSortErr6RequiresViolation, __U_MULTI_fbubblesort_alloca_true_valid_memsafety_true_termination_i__bubbleSortErr1RequiresViolation, __U_MULTI_fbubblesort_alloca_true_valid_memsafety_true_termination_i__bubbleSortErr7RequiresViolation, __U_MULTI_fbubblesort_alloca_true_valid_memsafety_true_termination_i__bubbleSortErr11RequiresViolation, __U_MULTI_fbubblesort_alloca_true_valid_memsafety_true_termination_i__bubbleSortErr8RequiresViolation, __U_MULTI_fbubblesort_alloca_true_valid_memsafety_true_termination_i__bubbleSortErr4RequiresViolation, __U_MULTI_fbubblesort_alloca_true_valid_memsafety_true_termination_i__bubbleSortErr5RequiresViolation, __U_MULTI_fbubblesort_alloca_true_valid_memsafety_true_termination_i__bubbleSortErr3RequiresViolation, mainErr0EnsuresViolationMEMORY_LEAK]=== [2018-04-05 15:19:28,521 INFO L82 PathProgramCache]: Analyzing trace with hash -543718952, now seen corresponding path program 1 times No working directory specified, using /storage/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 8 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 8 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2018-04-05 15:19:28,558 INFO L68 tionRefinementEngine]: Using refinement strategy FixedRefinementStrategy [2018-04-05 15:19:28,608 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-04-05 15:19:28,611 INFO L270 TraceCheckSpWp]: Computing forward predicates... [2018-04-05 15:19:28,688 INFO L700 Elim1Store]: detected not equals via solver [2018-04-05 15:19:28,689 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 12 treesize of output 5 [2018-04-05 15:19:28,689 INFO L267 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2018-04-05 15:19:28,710 INFO L267 ElimStorePlain]: Start of recursive call 1: 1 dim-0 vars, 1 dim-1 vars, End of recursive call: 1 dim-0 vars, and 1 xjuncts. [2018-04-05 15:19:28,711 INFO L202 ElimStorePlain]: Needed 2 recursive calls to eliminate 2 variables, input treesize:12, output treesize:5 [2018-04-05 15:19:28,832 WARN L1033 $PredicateComparison]: unable to prove that (exists ((|main_#t~malloc9.base| Int)) (and (= (store |c_old(#valid)| |main_#t~malloc9.base| 0) |c_#valid|) (= 0 (select |c_old(#valid)| |main_#t~malloc9.base|)))) is different from true [2018-04-05 15:19:28,836 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2018-04-05 15:19:28,837 INFO L314 TraceCheckSpWp]: Computing backward predicates... [2018-04-05 15:19:28,906 WARN L1011 $PredicateComparison]: unable to prove that (forall ((|v_main_#t~malloc9.base_13| Int)) (or (not (= 0 (select |c_#valid| |v_main_#t~malloc9.base_13|))) (= (store |c_#valid| |v_main_#t~malloc9.base_13| 0) |c_old(#valid)|))) is different from false [2018-04-05 15:19:28,948 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2018-04-05 15:19:29,010 INFO L320 seRefinementStrategy]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2018-04-05 15:19:29,010 INFO L335 seRefinementStrategy]: Number of different interpolants: perfect sequences [5, 4] imperfect sequences [] total 7 [2018-04-05 15:19:29,011 INFO L442 AbstractCegarLoop]: Interpolant automaton has 8 states [2018-04-05 15:19:29,011 INFO L132 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2018-04-05 15:19:29,011 INFO L133 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=21, Unknown=2, NotChecked=18, Total=56 [2018-04-05 15:19:29,012 INFO L87 Difference]: Start difference. First operand 67 states and 71 transitions. Second operand 8 states. [2018-04-05 15:19:29,050 WARN L1011 $PredicateComparison]: unable to prove that (and (= |c_#valid| |c_old(#valid)|) (forall ((|v_main_#t~malloc9.base_13| Int)) (or (not (= 0 (select |c_#valid| |v_main_#t~malloc9.base_13|))) (= (store |c_#valid| |v_main_#t~malloc9.base_13| 0) |c_old(#valid)|)))) is different from false [2018-04-05 15:19:29,690 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-04-05 15:19:29,690 INFO L93 Difference]: Finished difference Result 67 states and 71 transitions. [2018-04-05 15:19:29,694 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2018-04-05 15:19:29,694 INFO L78 Accepts]: Start accepts. Automaton has 8 states. Word has length 36 [2018-04-05 15:19:29,694 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-04-05 15:19:29,695 INFO L225 Difference]: With dead ends: 67 [2018-04-05 15:19:29,695 INFO L226 Difference]: Without dead ends: 55 [2018-04-05 15:19:29,702 INFO L567 BasicCegarLoop]: 0 DeclaredPredicates, 76 GetRequests, 65 SyntacticMatches, 1 SemanticMatches, 10 ConstructedPredicates, 3 IntricatePredicates, 0 DeprecatedPredicates, 5 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=29, Invalid=52, Unknown=3, NotChecked=48, Total=132 [2018-04-05 15:19:29,703 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 55 states. [2018-04-05 15:19:29,720 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 55 to 50. [2018-04-05 15:19:29,720 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 50 states. [2018-04-05 15:19:29,725 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 50 states to 50 states and 53 transitions. [2018-04-05 15:19:29,725 INFO L78 Accepts]: Start accepts. Automaton has 50 states and 53 transitions. Word has length 36 [2018-04-05 15:19:29,726 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-04-05 15:19:29,726 INFO L459 AbstractCegarLoop]: Abstraction has 50 states and 53 transitions. [2018-04-05 15:19:29,726 INFO L460 AbstractCegarLoop]: Interpolant automaton has 8 states. [2018-04-05 15:19:29,726 INFO L276 IsEmpty]: Start isEmpty. Operand 50 states and 53 transitions. [2018-04-05 15:19:29,727 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 37 [2018-04-05 15:19:29,727 INFO L347 BasicCegarLoop]: Found error trace [2018-04-05 15:19:29,727 INFO L355 BasicCegarLoop]: trace histogram [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] [2018-04-05 15:19:29,727 INFO L408 AbstractCegarLoop]: === Iteration 8 === [__U_MULTI_fbubblesort_alloca_true_valid_memsafety_true_termination_i__bubbleSortErr0RequiresViolation, __U_MULTI_fbubblesort_alloca_true_valid_memsafety_true_termination_i__bubbleSortErr9RequiresViolation, __U_MULTI_fbubblesort_alloca_true_valid_memsafety_true_termination_i__bubbleSortErr2RequiresViolation, __U_MULTI_fbubblesort_alloca_true_valid_memsafety_true_termination_i__bubbleSortErr10RequiresViolation, __U_MULTI_fbubblesort_alloca_true_valid_memsafety_true_termination_i__bubbleSortErr6RequiresViolation, __U_MULTI_fbubblesort_alloca_true_valid_memsafety_true_termination_i__bubbleSortErr1RequiresViolation, __U_MULTI_fbubblesort_alloca_true_valid_memsafety_true_termination_i__bubbleSortErr7RequiresViolation, __U_MULTI_fbubblesort_alloca_true_valid_memsafety_true_termination_i__bubbleSortErr11RequiresViolation, __U_MULTI_fbubblesort_alloca_true_valid_memsafety_true_termination_i__bubbleSortErr8RequiresViolation, __U_MULTI_fbubblesort_alloca_true_valid_memsafety_true_termination_i__bubbleSortErr4RequiresViolation, __U_MULTI_fbubblesort_alloca_true_valid_memsafety_true_termination_i__bubbleSortErr5RequiresViolation, __U_MULTI_fbubblesort_alloca_true_valid_memsafety_true_termination_i__bubbleSortErr3RequiresViolation, mainErr0EnsuresViolationMEMORY_LEAK]=== [2018-04-05 15:19:29,727 INFO L82 PathProgramCache]: Analyzing trace with hash -1837799259, now seen corresponding path program 1 times No working directory specified, using /storage/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 9 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 9 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2018-04-05 15:19:29,748 INFO L68 tionRefinementEngine]: Using refinement strategy FixedRefinementStrategy [2018-04-05 15:19:29,786 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-04-05 15:19:29,793 INFO L270 TraceCheckSpWp]: Computing forward predicates... [2018-04-05 15:19:29,813 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 8 treesize of output 7 [2018-04-05 15:19:29,817 INFO L267 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2018-04-05 15:19:29,831 INFO L267 ElimStorePlain]: Start of recursive call 1: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-04-05 15:19:29,832 INFO L202 ElimStorePlain]: Needed 2 recursive calls to eliminate 1 variables, input treesize:12, output treesize:11 [2018-04-05 15:19:30,437 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2018-04-05 15:19:30,437 INFO L314 TraceCheckSpWp]: Computing backward predicates... [2018-04-05 15:19:31,420 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2018-04-05 15:19:31,485 INFO L320 seRefinementStrategy]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2018-04-05 15:19:31,485 INFO L335 seRefinementStrategy]: Number of different interpolants: perfect sequences [] imperfect sequences [9, 9] total 17 [2018-04-05 15:19:31,485 INFO L442 AbstractCegarLoop]: Interpolant automaton has 18 states [2018-04-05 15:19:31,486 INFO L132 InterpolantAutomaton]: Constructing interpolant automaton starting with 18 interpolants. [2018-04-05 15:19:31,486 INFO L133 InterpolantAutomaton]: CoverageRelationStatistics Valid=44, Invalid=262, Unknown=0, NotChecked=0, Total=306 [2018-04-05 15:19:31,486 INFO L87 Difference]: Start difference. First operand 50 states and 53 transitions. Second operand 18 states. [2018-04-05 15:19:33,128 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-04-05 15:19:33,128 INFO L93 Difference]: Finished difference Result 79 states and 84 transitions. [2018-04-05 15:19:33,129 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2018-04-05 15:19:33,129 INFO L78 Accepts]: Start accepts. Automaton has 18 states. Word has length 36 [2018-04-05 15:19:33,129 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-04-05 15:19:33,130 INFO L225 Difference]: With dead ends: 79 [2018-04-05 15:19:33,130 INFO L226 Difference]: Without dead ends: 78 [2018-04-05 15:19:33,131 INFO L567 BasicCegarLoop]: 0 DeclaredPredicates, 78 GetRequests, 55 SyntacticMatches, 0 SemanticMatches, 23 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 50 ImplicationChecksByTransitivity, 2.2s TimeCoverageRelationStatistics Valid=123, Invalid=477, Unknown=0, NotChecked=0, Total=600 [2018-04-05 15:19:33,131 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 78 states. [2018-04-05 15:19:33,200 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 78 to 74. [2018-04-05 15:19:33,200 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 74 states. [2018-04-05 15:19:33,201 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 74 states to 74 states and 79 transitions. [2018-04-05 15:19:33,201 INFO L78 Accepts]: Start accepts. Automaton has 74 states and 79 transitions. Word has length 36 [2018-04-05 15:19:33,211 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-04-05 15:19:33,211 INFO L459 AbstractCegarLoop]: Abstraction has 74 states and 79 transitions. [2018-04-05 15:19:33,211 INFO L460 AbstractCegarLoop]: Interpolant automaton has 18 states. [2018-04-05 15:19:33,212 INFO L276 IsEmpty]: Start isEmpty. Operand 74 states and 79 transitions. [2018-04-05 15:19:33,218 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 55 [2018-04-05 15:19:33,219 INFO L347 BasicCegarLoop]: Found error trace [2018-04-05 15:19:33,219 INFO L355 BasicCegarLoop]: trace histogram [4, 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] [2018-04-05 15:19:33,219 INFO L408 AbstractCegarLoop]: === Iteration 9 === [__U_MULTI_fbubblesort_alloca_true_valid_memsafety_true_termination_i__bubbleSortErr0RequiresViolation, __U_MULTI_fbubblesort_alloca_true_valid_memsafety_true_termination_i__bubbleSortErr9RequiresViolation, __U_MULTI_fbubblesort_alloca_true_valid_memsafety_true_termination_i__bubbleSortErr2RequiresViolation, __U_MULTI_fbubblesort_alloca_true_valid_memsafety_true_termination_i__bubbleSortErr10RequiresViolation, __U_MULTI_fbubblesort_alloca_true_valid_memsafety_true_termination_i__bubbleSortErr6RequiresViolation, __U_MULTI_fbubblesort_alloca_true_valid_memsafety_true_termination_i__bubbleSortErr1RequiresViolation, __U_MULTI_fbubblesort_alloca_true_valid_memsafety_true_termination_i__bubbleSortErr7RequiresViolation, __U_MULTI_fbubblesort_alloca_true_valid_memsafety_true_termination_i__bubbleSortErr11RequiresViolation, __U_MULTI_fbubblesort_alloca_true_valid_memsafety_true_termination_i__bubbleSortErr8RequiresViolation, __U_MULTI_fbubblesort_alloca_true_valid_memsafety_true_termination_i__bubbleSortErr4RequiresViolation, __U_MULTI_fbubblesort_alloca_true_valid_memsafety_true_termination_i__bubbleSortErr5RequiresViolation, __U_MULTI_fbubblesort_alloca_true_valid_memsafety_true_termination_i__bubbleSortErr3RequiresViolation, mainErr0EnsuresViolationMEMORY_LEAK]=== [2018-04-05 15:19:33,219 INFO L82 PathProgramCache]: Analyzing trace with hash 1488453055, now seen corresponding path program 1 times No working directory specified, using /storage/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 10 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 10 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2018-04-05 15:19:33,248 INFO L68 tionRefinementEngine]: Using refinement strategy FixedRefinementStrategy [2018-04-05 15:19:33,317 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-04-05 15:19:33,320 INFO L270 TraceCheckSpWp]: Computing forward predicates... [2018-04-05 15:19:33,591 INFO L134 CoverageAnalysis]: Checked inductivity of 27 backedges. 19 proven. 6 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2018-04-05 15:19:33,595 INFO L314 TraceCheckSpWp]: Computing backward predicates... [2018-04-05 15:19:33,834 INFO L134 CoverageAnalysis]: Checked inductivity of 27 backedges. 19 proven. 6 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2018-04-05 15:19:33,893 INFO L320 seRefinementStrategy]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2018-04-05 15:19:33,921 INFO L335 seRefinementStrategy]: Number of different interpolants: perfect sequences [] imperfect sequences [9, 9] total 10 [2018-04-05 15:19:33,921 INFO L442 AbstractCegarLoop]: Interpolant automaton has 10 states [2018-04-05 15:19:33,921 INFO L132 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2018-04-05 15:19:33,922 INFO L133 InterpolantAutomaton]: CoverageRelationStatistics Valid=22, Invalid=68, Unknown=0, NotChecked=0, Total=90 [2018-04-05 15:19:33,922 INFO L87 Difference]: Start difference. First operand 74 states and 79 transitions. Second operand 10 states. [2018-04-05 15:19:34,902 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-04-05 15:19:34,902 INFO L93 Difference]: Finished difference Result 181 states and 194 transitions. [2018-04-05 15:19:34,903 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2018-04-05 15:19:34,903 INFO L78 Accepts]: Start accepts. Automaton has 10 states. Word has length 54 [2018-04-05 15:19:34,903 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-04-05 15:19:34,904 INFO L225 Difference]: With dead ends: 181 [2018-04-05 15:19:34,904 INFO L226 Difference]: Without dead ends: 143 [2018-04-05 15:19:34,905 INFO L567 BasicCegarLoop]: 0 DeclaredPredicates, 115 GetRequests, 94 SyntacticMatches, 6 SemanticMatches, 15 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 41 ImplicationChecksByTransitivity, 0.8s TimeCoverageRelationStatistics Valid=66, Invalid=206, Unknown=0, NotChecked=0, Total=272 [2018-04-05 15:19:34,906 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 143 states. [2018-04-05 15:19:34,969 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 143 to 110. [2018-04-05 15:19:34,969 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 110 states. [2018-04-05 15:19:34,975 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 110 states to 110 states and 117 transitions. [2018-04-05 15:19:34,976 INFO L78 Accepts]: Start accepts. Automaton has 110 states and 117 transitions. Word has length 54 [2018-04-05 15:19:34,976 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-04-05 15:19:34,976 INFO L459 AbstractCegarLoop]: Abstraction has 110 states and 117 transitions. [2018-04-05 15:19:34,976 INFO L460 AbstractCegarLoop]: Interpolant automaton has 10 states. [2018-04-05 15:19:34,976 INFO L276 IsEmpty]: Start isEmpty. Operand 110 states and 117 transitions. [2018-04-05 15:19:34,978 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 65 [2018-04-05 15:19:34,978 INFO L347 BasicCegarLoop]: Found error trace [2018-04-05 15:19:34,978 INFO L355 BasicCegarLoop]: trace histogram [5, 4, 4, 3, 3, 3, 3, 3, 3, 3, 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] [2018-04-05 15:19:34,978 INFO L408 AbstractCegarLoop]: === Iteration 10 === [__U_MULTI_fbubblesort_alloca_true_valid_memsafety_true_termination_i__bubbleSortErr0RequiresViolation, __U_MULTI_fbubblesort_alloca_true_valid_memsafety_true_termination_i__bubbleSortErr9RequiresViolation, __U_MULTI_fbubblesort_alloca_true_valid_memsafety_true_termination_i__bubbleSortErr2RequiresViolation, __U_MULTI_fbubblesort_alloca_true_valid_memsafety_true_termination_i__bubbleSortErr10RequiresViolation, __U_MULTI_fbubblesort_alloca_true_valid_memsafety_true_termination_i__bubbleSortErr6RequiresViolation, __U_MULTI_fbubblesort_alloca_true_valid_memsafety_true_termination_i__bubbleSortErr1RequiresViolation, __U_MULTI_fbubblesort_alloca_true_valid_memsafety_true_termination_i__bubbleSortErr7RequiresViolation, __U_MULTI_fbubblesort_alloca_true_valid_memsafety_true_termination_i__bubbleSortErr11RequiresViolation, __U_MULTI_fbubblesort_alloca_true_valid_memsafety_true_termination_i__bubbleSortErr8RequiresViolation, __U_MULTI_fbubblesort_alloca_true_valid_memsafety_true_termination_i__bubbleSortErr4RequiresViolation, __U_MULTI_fbubblesort_alloca_true_valid_memsafety_true_termination_i__bubbleSortErr5RequiresViolation, __U_MULTI_fbubblesort_alloca_true_valid_memsafety_true_termination_i__bubbleSortErr3RequiresViolation, mainErr0EnsuresViolationMEMORY_LEAK]=== [2018-04-05 15:19:34,979 INFO L82 PathProgramCache]: Analyzing trace with hash 2078842027, now seen corresponding path program 2 times No working directory specified, using /storage/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 11 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 11 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2018-04-05 15:19:35,011 INFO L68 tionRefinementEngine]: Using refinement strategy FixedRefinementStrategy [2018-04-05 15:19:35,074 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-04-05 15:19:35,081 INFO L270 TraceCheckSpWp]: Computing forward predicates... [2018-04-05 15:19:35,589 INFO L134 CoverageAnalysis]: Checked inductivity of 53 backedges. 11 proven. 42 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-04-05 15:19:35,590 INFO L314 TraceCheckSpWp]: Computing backward predicates... [2018-04-05 15:19:36,079 INFO L134 CoverageAnalysis]: Checked inductivity of 53 backedges. 11 proven. 42 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-04-05 15:19:36,123 INFO L320 seRefinementStrategy]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2018-04-05 15:19:36,123 INFO L335 seRefinementStrategy]: Number of different interpolants: perfect sequences [] imperfect sequences [13, 13] total 16 [2018-04-05 15:19:36,124 INFO L442 AbstractCegarLoop]: Interpolant automaton has 16 states [2018-04-05 15:19:36,124 INFO L132 InterpolantAutomaton]: Constructing interpolant automaton starting with 16 interpolants. [2018-04-05 15:19:36,124 INFO L133 InterpolantAutomaton]: CoverageRelationStatistics Valid=46, Invalid=194, Unknown=0, NotChecked=0, Total=240 [2018-04-05 15:19:36,124 INFO L87 Difference]: Start difference. First operand 110 states and 117 transitions. Second operand 16 states. [2018-04-05 15:19:37,870 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-04-05 15:19:37,870 INFO L93 Difference]: Finished difference Result 256 states and 273 transitions. [2018-04-05 15:19:37,870 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 18 states. [2018-04-05 15:19:37,870 INFO L78 Accepts]: Start accepts. Automaton has 16 states. Word has length 64 [2018-04-05 15:19:37,871 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-04-05 15:19:37,872 INFO L225 Difference]: With dead ends: 256 [2018-04-05 15:19:37,872 INFO L226 Difference]: Without dead ends: 182 [2018-04-05 15:19:37,873 INFO L567 BasicCegarLoop]: 0 DeclaredPredicates, 140 GetRequests, 106 SyntacticMatches, 8 SemanticMatches, 26 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 154 ImplicationChecksByTransitivity, 1.7s TimeCoverageRelationStatistics Valid=161, Invalid=595, Unknown=0, NotChecked=0, Total=756 [2018-04-05 15:19:37,874 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 182 states. [2018-04-05 15:19:37,896 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 182 to 148. [2018-04-05 15:19:37,896 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 148 states. [2018-04-05 15:19:37,897 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 148 states to 148 states and 158 transitions. [2018-04-05 15:19:37,898 INFO L78 Accepts]: Start accepts. Automaton has 148 states and 158 transitions. Word has length 64 [2018-04-05 15:19:37,898 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-04-05 15:19:37,898 INFO L459 AbstractCegarLoop]: Abstraction has 148 states and 158 transitions. [2018-04-05 15:19:37,898 INFO L460 AbstractCegarLoop]: Interpolant automaton has 16 states. [2018-04-05 15:19:37,898 INFO L276 IsEmpty]: Start isEmpty. Operand 148 states and 158 transitions. [2018-04-05 15:19:37,903 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 75 [2018-04-05 15:19:37,904 INFO L347 BasicCegarLoop]: Found error trace [2018-04-05 15:19:37,904 INFO L355 BasicCegarLoop]: trace histogram [6, 5, 5, 4, 4, 4, 4, 4, 4, 4, 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] [2018-04-05 15:19:37,904 INFO L408 AbstractCegarLoop]: === Iteration 11 === [__U_MULTI_fbubblesort_alloca_true_valid_memsafety_true_termination_i__bubbleSortErr0RequiresViolation, __U_MULTI_fbubblesort_alloca_true_valid_memsafety_true_termination_i__bubbleSortErr9RequiresViolation, __U_MULTI_fbubblesort_alloca_true_valid_memsafety_true_termination_i__bubbleSortErr2RequiresViolation, __U_MULTI_fbubblesort_alloca_true_valid_memsafety_true_termination_i__bubbleSortErr10RequiresViolation, __U_MULTI_fbubblesort_alloca_true_valid_memsafety_true_termination_i__bubbleSortErr6RequiresViolation, __U_MULTI_fbubblesort_alloca_true_valid_memsafety_true_termination_i__bubbleSortErr1RequiresViolation, __U_MULTI_fbubblesort_alloca_true_valid_memsafety_true_termination_i__bubbleSortErr7RequiresViolation, __U_MULTI_fbubblesort_alloca_true_valid_memsafety_true_termination_i__bubbleSortErr11RequiresViolation, __U_MULTI_fbubblesort_alloca_true_valid_memsafety_true_termination_i__bubbleSortErr8RequiresViolation, __U_MULTI_fbubblesort_alloca_true_valid_memsafety_true_termination_i__bubbleSortErr4RequiresViolation, __U_MULTI_fbubblesort_alloca_true_valid_memsafety_true_termination_i__bubbleSortErr5RequiresViolation, __U_MULTI_fbubblesort_alloca_true_valid_memsafety_true_termination_i__bubbleSortErr3RequiresViolation, mainErr0EnsuresViolationMEMORY_LEAK]=== [2018-04-05 15:19:37,904 INFO L82 PathProgramCache]: Analyzing trace with hash -868186985, now seen corresponding path program 3 times No working directory specified, using /storage/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 12 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 12 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2018-04-05 15:19:37,921 INFO L68 tionRefinementEngine]: Using refinement strategy FixedRefinementStrategy [2018-04-05 15:19:38,006 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-04-05 15:19:38,013 INFO L270 TraceCheckSpWp]: Computing forward predicates... [2018-04-05 15:19:38,585 INFO L134 CoverageAnalysis]: Checked inductivity of 89 backedges. 31 proven. 58 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-04-05 15:19:38,585 INFO L314 TraceCheckSpWp]: Computing backward predicates... [2018-04-05 15:19:39,097 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 13 treesize of output 11 [2018-04-05 15:19:39,097 INFO L267 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2018-04-05 15:19:39,120 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 1 xjuncts. [2018-04-05 15:19:39,120 INFO L202 ElimStorePlain]: Needed 2 recursive calls to eliminate 3 variables, input treesize:26, output treesize:13 [2018-04-05 15:19:39,309 INFO L134 CoverageAnalysis]: Checked inductivity of 89 backedges. 19 proven. 70 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-04-05 15:19:39,353 INFO L320 seRefinementStrategy]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2018-04-05 15:19:39,354 INFO L335 seRefinementStrategy]: Number of different interpolants: perfect sequences [] imperfect sequences [11, 11] total 16 [2018-04-05 15:19:39,355 INFO L442 AbstractCegarLoop]: Interpolant automaton has 17 states [2018-04-05 15:19:39,355 INFO L132 InterpolantAutomaton]: Constructing interpolant automaton starting with 17 interpolants. [2018-04-05 15:19:39,356 INFO L133 InterpolantAutomaton]: CoverageRelationStatistics Valid=54, Invalid=218, Unknown=0, NotChecked=0, Total=272 [2018-04-05 15:19:39,356 INFO L87 Difference]: Start difference. First operand 148 states and 158 transitions. Second operand 17 states. [2018-04-05 15:19:42,294 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-04-05 15:19:42,295 INFO L93 Difference]: Finished difference Result 149 states and 158 transitions. [2018-04-05 15:19:42,295 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 19 states. [2018-04-05 15:19:42,295 INFO L78 Accepts]: Start accepts. Automaton has 17 states. Word has length 74 [2018-04-05 15:19:42,296 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-04-05 15:19:42,297 INFO L225 Difference]: With dead ends: 149 [2018-04-05 15:19:42,297 INFO L226 Difference]: Without dead ends: 148 [2018-04-05 15:19:42,298 INFO L567 BasicCegarLoop]: 0 DeclaredPredicates, 163 GetRequests, 128 SyntacticMatches, 5 SemanticMatches, 30 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 180 ImplicationChecksByTransitivity, 2.2s TimeCoverageRelationStatistics Valid=231, Invalid=761, Unknown=0, NotChecked=0, Total=992 [2018-04-05 15:19:42,298 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 148 states. [2018-04-05 15:19:42,361 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 148 to 148. [2018-04-05 15:19:42,362 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 148 states. [2018-04-05 15:19:42,363 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 148 states to 148 states and 157 transitions. [2018-04-05 15:19:42,363 INFO L78 Accepts]: Start accepts. Automaton has 148 states and 157 transitions. Word has length 74 [2018-04-05 15:19:42,367 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-04-05 15:19:42,367 INFO L459 AbstractCegarLoop]: Abstraction has 148 states and 157 transitions. [2018-04-05 15:19:42,367 INFO L460 AbstractCegarLoop]: Interpolant automaton has 17 states. [2018-04-05 15:19:42,368 INFO L276 IsEmpty]: Start isEmpty. Operand 148 states and 157 transitions. [2018-04-05 15:19:42,369 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 85 [2018-04-05 15:19:42,369 INFO L347 BasicCegarLoop]: Found error trace [2018-04-05 15:19:42,369 INFO L355 BasicCegarLoop]: trace histogram [7, 6, 6, 5, 5, 5, 5, 5, 5, 5, 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] [2018-04-05 15:19:42,369 INFO L408 AbstractCegarLoop]: === Iteration 12 === [__U_MULTI_fbubblesort_alloca_true_valid_memsafety_true_termination_i__bubbleSortErr0RequiresViolation, __U_MULTI_fbubblesort_alloca_true_valid_memsafety_true_termination_i__bubbleSortErr9RequiresViolation, __U_MULTI_fbubblesort_alloca_true_valid_memsafety_true_termination_i__bubbleSortErr2RequiresViolation, __U_MULTI_fbubblesort_alloca_true_valid_memsafety_true_termination_i__bubbleSortErr10RequiresViolation, __U_MULTI_fbubblesort_alloca_true_valid_memsafety_true_termination_i__bubbleSortErr6RequiresViolation, __U_MULTI_fbubblesort_alloca_true_valid_memsafety_true_termination_i__bubbleSortErr1RequiresViolation, __U_MULTI_fbubblesort_alloca_true_valid_memsafety_true_termination_i__bubbleSortErr7RequiresViolation, __U_MULTI_fbubblesort_alloca_true_valid_memsafety_true_termination_i__bubbleSortErr11RequiresViolation, __U_MULTI_fbubblesort_alloca_true_valid_memsafety_true_termination_i__bubbleSortErr8RequiresViolation, __U_MULTI_fbubblesort_alloca_true_valid_memsafety_true_termination_i__bubbleSortErr4RequiresViolation, __U_MULTI_fbubblesort_alloca_true_valid_memsafety_true_termination_i__bubbleSortErr5RequiresViolation, __U_MULTI_fbubblesort_alloca_true_valid_memsafety_true_termination_i__bubbleSortErr3RequiresViolation, mainErr0EnsuresViolationMEMORY_LEAK]=== [2018-04-05 15:19:42,369 INFO L82 PathProgramCache]: Analyzing trace with hash 1123581955, now seen corresponding path program 4 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 [2018-04-05 15:19:42,399 INFO L68 tionRefinementEngine]: Using refinement strategy FixedRefinementStrategy [2018-04-05 15:19:42,447 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-04-05 15:19:42,451 INFO L270 TraceCheckSpWp]: Computing forward predicates... [2018-04-05 15:19:43,442 INFO L134 CoverageAnalysis]: Checked inductivity of 135 backedges. 27 proven. 108 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-04-05 15:19:43,442 INFO L314 TraceCheckSpWp]: Computing backward predicates... [2018-04-05 15:19:44,342 INFO L134 CoverageAnalysis]: Checked inductivity of 135 backedges. 27 proven. 108 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-04-05 15:19:44,401 INFO L320 seRefinementStrategy]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2018-04-05 15:19:44,401 INFO L335 seRefinementStrategy]: Number of different interpolants: perfect sequences [] imperfect sequences [17, 17] total 22 [2018-04-05 15:19:44,402 INFO L442 AbstractCegarLoop]: Interpolant automaton has 22 states [2018-04-05 15:19:44,402 INFO L132 InterpolantAutomaton]: Constructing interpolant automaton starting with 22 interpolants. [2018-04-05 15:19:44,402 INFO L133 InterpolantAutomaton]: CoverageRelationStatistics Valid=78, Invalid=384, Unknown=0, NotChecked=0, Total=462 [2018-04-05 15:19:44,403 INFO L87 Difference]: Start difference. First operand 148 states and 157 transitions. Second operand 22 states. [2018-04-05 15:19:47,119 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-04-05 15:19:47,120 INFO L93 Difference]: Finished difference Result 332 states and 353 transitions. [2018-04-05 15:19:47,120 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 24 states. [2018-04-05 15:19:47,120 INFO L78 Accepts]: Start accepts. Automaton has 22 states. Word has length 84 [2018-04-05 15:19:47,121 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-04-05 15:19:47,122 INFO L225 Difference]: With dead ends: 332 [2018-04-05 15:19:47,122 INFO L226 Difference]: Without dead ends: 220 [2018-04-05 15:19:47,123 INFO L567 BasicCegarLoop]: 0 DeclaredPredicates, 185 GetRequests, 138 SyntacticMatches, 10 SemanticMatches, 37 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 346 ImplicationChecksByTransitivity, 3.1s TimeCoverageRelationStatistics Valid=290, Invalid=1192, Unknown=0, NotChecked=0, Total=1482 [2018-04-05 15:19:47,123 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 220 states. [2018-04-05 15:19:47,173 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 220 to 186. [2018-04-05 15:19:47,173 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 186 states. [2018-04-05 15:19:47,174 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 186 states to 186 states and 198 transitions. [2018-04-05 15:19:47,175 INFO L78 Accepts]: Start accepts. Automaton has 186 states and 198 transitions. Word has length 84 [2018-04-05 15:19:47,175 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-04-05 15:19:47,175 INFO L459 AbstractCegarLoop]: Abstraction has 186 states and 198 transitions. [2018-04-05 15:19:47,175 INFO L460 AbstractCegarLoop]: Interpolant automaton has 22 states. [2018-04-05 15:19:47,175 INFO L276 IsEmpty]: Start isEmpty. Operand 186 states and 198 transitions. [2018-04-05 15:19:47,186 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 95 [2018-04-05 15:19:47,186 INFO L347 BasicCegarLoop]: Found error trace [2018-04-05 15:19:47,187 INFO L355 BasicCegarLoop]: trace histogram [8, 7, 7, 6, 6, 6, 6, 6, 6, 6, 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] [2018-04-05 15:19:47,187 INFO L408 AbstractCegarLoop]: === Iteration 13 === [__U_MULTI_fbubblesort_alloca_true_valid_memsafety_true_termination_i__bubbleSortErr0RequiresViolation, __U_MULTI_fbubblesort_alloca_true_valid_memsafety_true_termination_i__bubbleSortErr9RequiresViolation, __U_MULTI_fbubblesort_alloca_true_valid_memsafety_true_termination_i__bubbleSortErr2RequiresViolation, __U_MULTI_fbubblesort_alloca_true_valid_memsafety_true_termination_i__bubbleSortErr10RequiresViolation, __U_MULTI_fbubblesort_alloca_true_valid_memsafety_true_termination_i__bubbleSortErr6RequiresViolation, __U_MULTI_fbubblesort_alloca_true_valid_memsafety_true_termination_i__bubbleSortErr1RequiresViolation, __U_MULTI_fbubblesort_alloca_true_valid_memsafety_true_termination_i__bubbleSortErr7RequiresViolation, __U_MULTI_fbubblesort_alloca_true_valid_memsafety_true_termination_i__bubbleSortErr11RequiresViolation, __U_MULTI_fbubblesort_alloca_true_valid_memsafety_true_termination_i__bubbleSortErr8RequiresViolation, __U_MULTI_fbubblesort_alloca_true_valid_memsafety_true_termination_i__bubbleSortErr4RequiresViolation, __U_MULTI_fbubblesort_alloca_true_valid_memsafety_true_termination_i__bubbleSortErr5RequiresViolation, __U_MULTI_fbubblesort_alloca_true_valid_memsafety_true_termination_i__bubbleSortErr3RequiresViolation, mainErr0EnsuresViolationMEMORY_LEAK]=== [2018-04-05 15:19:47,187 INFO L82 PathProgramCache]: Analyzing trace with hash -1537656337, now seen corresponding path program 5 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 [2018-04-05 15:19:47,207 INFO L68 tionRefinementEngine]: Using refinement strategy FixedRefinementStrategy [2018-04-05 15:19:47,326 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-04-05 15:19:47,330 INFO L270 TraceCheckSpWp]: Computing forward predicates... [2018-04-05 15:19:48,215 WARN L148 SmtUtils]: Spent 122ms on a formula simplification that was a NOOP. DAG size: 16 [2018-04-05 15:19:48,694 INFO L134 CoverageAnalysis]: Checked inductivity of 191 backedges. 63 proven. 128 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-04-05 15:19:48,695 INFO L314 TraceCheckSpWp]: Computing backward predicates... [2018-04-05 15:19:49,377 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 13 treesize of output 11 [2018-04-05 15:19:49,421 INFO L267 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2018-04-05 15:19:49,445 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 1 xjuncts. [2018-04-05 15:19:49,445 INFO L202 ElimStorePlain]: Needed 2 recursive calls to eliminate 3 variables, input treesize:26, output treesize:13 [2018-04-05 15:19:49,772 INFO L134 CoverageAnalysis]: Checked inductivity of 191 backedges. 42 proven. 149 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-04-05 15:19:49,835 INFO L320 seRefinementStrategy]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2018-04-05 15:19:49,835 INFO L335 seRefinementStrategy]: Number of different interpolants: perfect sequences [] imperfect sequences [15, 15] total 22 [2018-04-05 15:19:49,836 INFO L442 AbstractCegarLoop]: Interpolant automaton has 23 states [2018-04-05 15:19:49,836 INFO L132 InterpolantAutomaton]: Constructing interpolant automaton starting with 23 interpolants. [2018-04-05 15:19:49,836 INFO L133 InterpolantAutomaton]: CoverageRelationStatistics Valid=86, Invalid=420, Unknown=0, NotChecked=0, Total=506 [2018-04-05 15:19:49,837 INFO L87 Difference]: Start difference. First operand 186 states and 198 transitions. Second operand 23 states. [2018-04-05 15:19:52,894 WARN L151 SmtUtils]: Spent 112ms on a formula simplification. DAG size of input: 26 DAG size of output 24 [2018-04-05 15:19:53,266 WARN L151 SmtUtils]: Spent 302ms on a formula simplification. DAG size of input: 22 DAG size of output 20 [2018-04-05 15:19:53,823 WARN L151 SmtUtils]: Spent 103ms on a formula simplification. DAG size of input: 25 DAG size of output 23 [2018-04-05 15:19:54,853 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-04-05 15:19:54,854 INFO L93 Difference]: Finished difference Result 187 states and 198 transitions. [2018-04-05 15:19:54,854 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 26 states. [2018-04-05 15:19:54,854 INFO L78 Accepts]: Start accepts. Automaton has 23 states. Word has length 94 [2018-04-05 15:19:54,855 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-04-05 15:19:54,855 INFO L225 Difference]: With dead ends: 187 [2018-04-05 15:19:54,856 INFO L226 Difference]: Without dead ends: 186 [2018-04-05 15:19:54,856 INFO L567 BasicCegarLoop]: 0 DeclaredPredicates, 209 GetRequests, 160 SyntacticMatches, 7 SemanticMatches, 42 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 442 ImplicationChecksByTransitivity, 4.3s TimeCoverageRelationStatistics Valid=386, Invalid=1506, Unknown=0, NotChecked=0, Total=1892 [2018-04-05 15:19:54,857 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 186 states. [2018-04-05 15:19:54,899 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 186 to 186. [2018-04-05 15:19:54,899 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 186 states. [2018-04-05 15:19:54,905 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 186 states to 186 states and 197 transitions. [2018-04-05 15:19:54,906 INFO L78 Accepts]: Start accepts. Automaton has 186 states and 197 transitions. Word has length 94 [2018-04-05 15:19:54,906 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-04-05 15:19:54,906 INFO L459 AbstractCegarLoop]: Abstraction has 186 states and 197 transitions. [2018-04-05 15:19:54,906 INFO L460 AbstractCegarLoop]: Interpolant automaton has 23 states. [2018-04-05 15:19:54,906 INFO L276 IsEmpty]: Start isEmpty. Operand 186 states and 197 transitions. [2018-04-05 15:19:54,907 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 105 [2018-04-05 15:19:54,908 INFO L347 BasicCegarLoop]: Found error trace [2018-04-05 15:19:54,911 INFO L355 BasicCegarLoop]: trace histogram [9, 8, 8, 7, 7, 7, 7, 7, 7, 7, 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] [2018-04-05 15:19:54,911 INFO L408 AbstractCegarLoop]: === Iteration 14 === [__U_MULTI_fbubblesort_alloca_true_valid_memsafety_true_termination_i__bubbleSortErr0RequiresViolation, __U_MULTI_fbubblesort_alloca_true_valid_memsafety_true_termination_i__bubbleSortErr9RequiresViolation, __U_MULTI_fbubblesort_alloca_true_valid_memsafety_true_termination_i__bubbleSortErr2RequiresViolation, __U_MULTI_fbubblesort_alloca_true_valid_memsafety_true_termination_i__bubbleSortErr10RequiresViolation, __U_MULTI_fbubblesort_alloca_true_valid_memsafety_true_termination_i__bubbleSortErr6RequiresViolation, __U_MULTI_fbubblesort_alloca_true_valid_memsafety_true_termination_i__bubbleSortErr1RequiresViolation, __U_MULTI_fbubblesort_alloca_true_valid_memsafety_true_termination_i__bubbleSortErr7RequiresViolation, __U_MULTI_fbubblesort_alloca_true_valid_memsafety_true_termination_i__bubbleSortErr11RequiresViolation, __U_MULTI_fbubblesort_alloca_true_valid_memsafety_true_termination_i__bubbleSortErr8RequiresViolation, __U_MULTI_fbubblesort_alloca_true_valid_memsafety_true_termination_i__bubbleSortErr4RequiresViolation, __U_MULTI_fbubblesort_alloca_true_valid_memsafety_true_termination_i__bubbleSortErr5RequiresViolation, __U_MULTI_fbubblesort_alloca_true_valid_memsafety_true_termination_i__bubbleSortErr3RequiresViolation, mainErr0EnsuresViolationMEMORY_LEAK]=== [2018-04-05 15:19:54,911 INFO L82 PathProgramCache]: Analyzing trace with hash -1106221221, now seen corresponding path program 6 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 [2018-04-05 15:19:54,941 INFO L68 tionRefinementEngine]: Using refinement strategy FixedRefinementStrategy [2018-04-05 15:19:55,020 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-04-05 15:19:55,029 INFO L270 TraceCheckSpWp]: Computing forward predicates... [2018-04-05 15:19:56,368 INFO L134 CoverageAnalysis]: Checked inductivity of 257 backedges. 53 proven. 204 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-04-05 15:19:56,368 INFO L314 TraceCheckSpWp]: Computing backward predicates... [2018-04-05 15:19:57,639 INFO L134 CoverageAnalysis]: Checked inductivity of 257 backedges. 53 proven. 204 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-04-05 15:19:57,697 INFO L320 seRefinementStrategy]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2018-04-05 15:19:57,698 INFO L335 seRefinementStrategy]: Number of different interpolants: perfect sequences [] imperfect sequences [21, 21] total 28 [2018-04-05 15:19:57,699 INFO L442 AbstractCegarLoop]: Interpolant automaton has 28 states [2018-04-05 15:19:57,699 INFO L132 InterpolantAutomaton]: Constructing interpolant automaton starting with 28 interpolants. [2018-04-05 15:19:57,699 INFO L133 InterpolantAutomaton]: CoverageRelationStatistics Valid=118, Invalid=638, Unknown=0, NotChecked=0, Total=756 [2018-04-05 15:19:57,699 INFO L87 Difference]: Start difference. First operand 186 states and 197 transitions. Second operand 28 states. [2018-04-05 15:20:01,806 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-04-05 15:20:01,806 INFO L93 Difference]: Finished difference Result 408 states and 433 transitions. [2018-04-05 15:20:01,807 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 30 states. [2018-04-05 15:20:01,807 INFO L78 Accepts]: Start accepts. Automaton has 28 states. Word has length 104 [2018-04-05 15:20:01,807 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-04-05 15:20:01,809 INFO L225 Difference]: With dead ends: 408 [2018-04-05 15:20:01,809 INFO L226 Difference]: Without dead ends: 258 [2018-04-05 15:20:01,811 INFO L567 BasicCegarLoop]: 0 DeclaredPredicates, 230 GetRequests, 170 SyntacticMatches, 12 SemanticMatches, 48 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 616 ImplicationChecksByTransitivity, 4.5s TimeCoverageRelationStatistics Valid=454, Invalid=1996, Unknown=0, NotChecked=0, Total=2450 [2018-04-05 15:20:01,833 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 258 states. [2018-04-05 15:20:01,908 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 258 to 224. [2018-04-05 15:20:01,920 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 224 states. [2018-04-05 15:20:01,922 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 224 states to 224 states and 238 transitions. [2018-04-05 15:20:01,922 INFO L78 Accepts]: Start accepts. Automaton has 224 states and 238 transitions. Word has length 104 [2018-04-05 15:20:01,922 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-04-05 15:20:01,922 INFO L459 AbstractCegarLoop]: Abstraction has 224 states and 238 transitions. [2018-04-05 15:20:01,922 INFO L460 AbstractCegarLoop]: Interpolant automaton has 28 states. [2018-04-05 15:20:01,923 INFO L276 IsEmpty]: Start isEmpty. Operand 224 states and 238 transitions. [2018-04-05 15:20:01,934 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 115 [2018-04-05 15:20:01,934 INFO L347 BasicCegarLoop]: Found error trace [2018-04-05 15:20:01,934 INFO L355 BasicCegarLoop]: trace histogram [10, 9, 9, 8, 8, 8, 8, 8, 8, 8, 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] [2018-04-05 15:20:01,934 INFO L408 AbstractCegarLoop]: === Iteration 15 === [__U_MULTI_fbubblesort_alloca_true_valid_memsafety_true_termination_i__bubbleSortErr0RequiresViolation, __U_MULTI_fbubblesort_alloca_true_valid_memsafety_true_termination_i__bubbleSortErr9RequiresViolation, __U_MULTI_fbubblesort_alloca_true_valid_memsafety_true_termination_i__bubbleSortErr2RequiresViolation, __U_MULTI_fbubblesort_alloca_true_valid_memsafety_true_termination_i__bubbleSortErr10RequiresViolation, __U_MULTI_fbubblesort_alloca_true_valid_memsafety_true_termination_i__bubbleSortErr6RequiresViolation, __U_MULTI_fbubblesort_alloca_true_valid_memsafety_true_termination_i__bubbleSortErr1RequiresViolation, __U_MULTI_fbubblesort_alloca_true_valid_memsafety_true_termination_i__bubbleSortErr7RequiresViolation, __U_MULTI_fbubblesort_alloca_true_valid_memsafety_true_termination_i__bubbleSortErr11RequiresViolation, __U_MULTI_fbubblesort_alloca_true_valid_memsafety_true_termination_i__bubbleSortErr8RequiresViolation, __U_MULTI_fbubblesort_alloca_true_valid_memsafety_true_termination_i__bubbleSortErr4RequiresViolation, __U_MULTI_fbubblesort_alloca_true_valid_memsafety_true_termination_i__bubbleSortErr5RequiresViolation, __U_MULTI_fbubblesort_alloca_true_valid_memsafety_true_termination_i__bubbleSortErr3RequiresViolation, mainErr0EnsuresViolationMEMORY_LEAK]=== [2018-04-05 15:20:01,935 INFO L82 PathProgramCache]: Analyzing trace with hash -706940089, now seen corresponding path program 7 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 [2018-04-05 15:20:01,964 INFO L68 tionRefinementEngine]: Using refinement strategy FixedRefinementStrategy [2018-04-05 15:20:02,007 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-04-05 15:20:02,013 INFO L270 TraceCheckSpWp]: Computing forward predicates... [2018-04-05 15:20:03,438 INFO L134 CoverageAnalysis]: Checked inductivity of 333 backedges. 105 proven. 228 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-04-05 15:20:03,438 INFO L314 TraceCheckSpWp]: Computing backward predicates... [2018-04-05 15:20:05,609 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 13 treesize of output 11 [2018-04-05 15:20:05,609 INFO L267 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2018-04-05 15:20:05,630 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 1 xjuncts. [2018-04-05 15:20:05,631 INFO L202 ElimStorePlain]: Needed 2 recursive calls to eliminate 3 variables, input treesize:26, output treesize:13 [2018-04-05 15:20:06,101 INFO L134 CoverageAnalysis]: Checked inductivity of 333 backedges. 75 proven. 258 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-04-05 15:20:06,138 INFO L320 seRefinementStrategy]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2018-04-05 15:20:06,139 INFO L335 seRefinementStrategy]: Number of different interpolants: perfect sequences [] imperfect sequences [19, 19] total 28 [2018-04-05 15:20:06,139 INFO L442 AbstractCegarLoop]: Interpolant automaton has 29 states [2018-04-05 15:20:06,139 INFO L132 InterpolantAutomaton]: Constructing interpolant automaton starting with 29 interpolants. [2018-04-05 15:20:06,140 INFO L133 InterpolantAutomaton]: CoverageRelationStatistics Valid=126, Invalid=686, Unknown=0, NotChecked=0, Total=812 [2018-04-05 15:20:06,140 INFO L87 Difference]: Start difference. First operand 224 states and 238 transitions. Second operand 29 states. [2018-04-05 15:20:10,599 WARN L151 SmtUtils]: Spent 101ms on a formula simplification. DAG size of input: 25 DAG size of output 24 [2018-04-05 15:20:11,880 WARN L151 SmtUtils]: Spent 100ms on a formula simplification. DAG size of input: 25 DAG size of output 24 [2018-04-05 15:20:12,568 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-04-05 15:20:12,569 INFO L93 Difference]: Finished difference Result 225 states and 238 transitions. [2018-04-05 15:20:12,569 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 33 states. [2018-04-05 15:20:12,569 INFO L78 Accepts]: Start accepts. Automaton has 29 states. Word has length 114 [2018-04-05 15:20:12,570 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-04-05 15:20:12,571 INFO L225 Difference]: With dead ends: 225 [2018-04-05 15:20:12,571 INFO L226 Difference]: Without dead ends: 224 [2018-04-05 15:20:12,573 INFO L567 BasicCegarLoop]: 0 DeclaredPredicates, 255 GetRequests, 192 SyntacticMatches, 9 SemanticMatches, 54 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 819 ImplicationChecksByTransitivity, 6.7s TimeCoverageRelationStatistics Valid=581, Invalid=2499, Unknown=0, NotChecked=0, Total=3080 [2018-04-05 15:20:12,583 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 224 states. [2018-04-05 15:20:12,612 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 224 to 224. [2018-04-05 15:20:12,612 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 224 states. [2018-04-05 15:20:12,615 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 224 states to 224 states and 237 transitions. [2018-04-05 15:20:12,616 INFO L78 Accepts]: Start accepts. Automaton has 224 states and 237 transitions. Word has length 114 [2018-04-05 15:20:12,616 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-04-05 15:20:12,616 INFO L459 AbstractCegarLoop]: Abstraction has 224 states and 237 transitions. [2018-04-05 15:20:12,616 INFO L460 AbstractCegarLoop]: Interpolant automaton has 29 states. [2018-04-05 15:20:12,616 INFO L276 IsEmpty]: Start isEmpty. Operand 224 states and 237 transitions. [2018-04-05 15:20:12,628 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 125 [2018-04-05 15:20:12,628 INFO L347 BasicCegarLoop]: Found error trace [2018-04-05 15:20:12,629 INFO L355 BasicCegarLoop]: trace histogram [11, 10, 10, 9, 9, 9, 9, 9, 9, 9, 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] [2018-04-05 15:20:12,629 INFO L408 AbstractCegarLoop]: === Iteration 16 === [__U_MULTI_fbubblesort_alloca_true_valid_memsafety_true_termination_i__bubbleSortErr0RequiresViolation, __U_MULTI_fbubblesort_alloca_true_valid_memsafety_true_termination_i__bubbleSortErr9RequiresViolation, __U_MULTI_fbubblesort_alloca_true_valid_memsafety_true_termination_i__bubbleSortErr2RequiresViolation, __U_MULTI_fbubblesort_alloca_true_valid_memsafety_true_termination_i__bubbleSortErr10RequiresViolation, __U_MULTI_fbubblesort_alloca_true_valid_memsafety_true_termination_i__bubbleSortErr6RequiresViolation, __U_MULTI_fbubblesort_alloca_true_valid_memsafety_true_termination_i__bubbleSortErr1RequiresViolation, __U_MULTI_fbubblesort_alloca_true_valid_memsafety_true_termination_i__bubbleSortErr7RequiresViolation, __U_MULTI_fbubblesort_alloca_true_valid_memsafety_true_termination_i__bubbleSortErr11RequiresViolation, __U_MULTI_fbubblesort_alloca_true_valid_memsafety_true_termination_i__bubbleSortErr8RequiresViolation, __U_MULTI_fbubblesort_alloca_true_valid_memsafety_true_termination_i__bubbleSortErr4RequiresViolation, __U_MULTI_fbubblesort_alloca_true_valid_memsafety_true_termination_i__bubbleSortErr5RequiresViolation, __U_MULTI_fbubblesort_alloca_true_valid_memsafety_true_termination_i__bubbleSortErr3RequiresViolation, mainErr0EnsuresViolationMEMORY_LEAK]=== [2018-04-05 15:20:12,629 INFO L82 PathProgramCache]: Analyzing trace with hash -1684122957, now seen corresponding path program 8 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 [2018-04-05 15:20:12,649 INFO L68 tionRefinementEngine]: Using refinement strategy FixedRefinementStrategy [2018-04-05 15:20:12,696 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-04-05 15:20:12,701 INFO L270 TraceCheckSpWp]: Computing forward predicates... [2018-04-05 15:20:14,466 INFO L134 CoverageAnalysis]: Checked inductivity of 419 backedges. 89 proven. 330 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-04-05 15:20:14,467 INFO L314 TraceCheckSpWp]: Computing backward predicates... [2018-04-05 15:20:16,248 INFO L134 CoverageAnalysis]: Checked inductivity of 419 backedges. 89 proven. 330 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-04-05 15:20:16,309 INFO L320 seRefinementStrategy]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2018-04-05 15:20:16,309 INFO L335 seRefinementStrategy]: Number of different interpolants: perfect sequences [] imperfect sequences [25, 25] total 34 [2018-04-05 15:20:16,310 INFO L442 AbstractCegarLoop]: Interpolant automaton has 34 states [2018-04-05 15:20:16,310 INFO L132 InterpolantAutomaton]: Constructing interpolant automaton starting with 34 interpolants. [2018-04-05 15:20:16,311 INFO L133 InterpolantAutomaton]: CoverageRelationStatistics Valid=166, Invalid=956, Unknown=0, NotChecked=0, Total=1122 [2018-04-05 15:20:16,311 INFO L87 Difference]: Start difference. First operand 224 states and 237 transitions. Second operand 34 states. [2018-04-05 15:20:17,368 WARN L148 SmtUtils]: Spent 124ms on a formula simplification that was a NOOP. DAG size: 6 [2018-04-05 15:20:22,801 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-04-05 15:20:22,801 INFO L93 Difference]: Finished difference Result 484 states and 513 transitions. [2018-04-05 15:20:22,801 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 36 states. [2018-04-05 15:20:22,802 INFO L78 Accepts]: Start accepts. Automaton has 34 states. Word has length 124 [2018-04-05 15:20:22,802 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-04-05 15:20:22,804 INFO L225 Difference]: With dead ends: 484 [2018-04-05 15:20:22,804 INFO L226 Difference]: Without dead ends: 296 [2018-04-05 15:20:22,819 INFO L567 BasicCegarLoop]: 0 DeclaredPredicates, 275 GetRequests, 202 SyntacticMatches, 14 SemanticMatches, 59 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 964 ImplicationChecksByTransitivity, 6.7s TimeCoverageRelationStatistics Valid=653, Invalid=3007, Unknown=0, NotChecked=0, Total=3660 [2018-04-05 15:20:22,819 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 296 states. [2018-04-05 15:20:22,861 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 296 to 262. [2018-04-05 15:20:22,861 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 262 states. [2018-04-05 15:20:22,863 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 262 states to 262 states and 278 transitions. [2018-04-05 15:20:22,866 INFO L78 Accepts]: Start accepts. Automaton has 262 states and 278 transitions. Word has length 124 [2018-04-05 15:20:22,866 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-04-05 15:20:22,866 INFO L459 AbstractCegarLoop]: Abstraction has 262 states and 278 transitions. [2018-04-05 15:20:22,866 INFO L460 AbstractCegarLoop]: Interpolant automaton has 34 states. [2018-04-05 15:20:22,866 INFO L276 IsEmpty]: Start isEmpty. Operand 262 states and 278 transitions. [2018-04-05 15:20:22,868 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 135 [2018-04-05 15:20:22,868 INFO L347 BasicCegarLoop]: Found error trace [2018-04-05 15:20:22,868 INFO L355 BasicCegarLoop]: trace histogram [12, 11, 11, 10, 10, 10, 10, 10, 10, 10, 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] [2018-04-05 15:20:22,869 INFO L408 AbstractCegarLoop]: === Iteration 17 === [__U_MULTI_fbubblesort_alloca_true_valid_memsafety_true_termination_i__bubbleSortErr0RequiresViolation, __U_MULTI_fbubblesort_alloca_true_valid_memsafety_true_termination_i__bubbleSortErr9RequiresViolation, __U_MULTI_fbubblesort_alloca_true_valid_memsafety_true_termination_i__bubbleSortErr2RequiresViolation, __U_MULTI_fbubblesort_alloca_true_valid_memsafety_true_termination_i__bubbleSortErr10RequiresViolation, __U_MULTI_fbubblesort_alloca_true_valid_memsafety_true_termination_i__bubbleSortErr6RequiresViolation, __U_MULTI_fbubblesort_alloca_true_valid_memsafety_true_termination_i__bubbleSortErr1RequiresViolation, __U_MULTI_fbubblesort_alloca_true_valid_memsafety_true_termination_i__bubbleSortErr7RequiresViolation, __U_MULTI_fbubblesort_alloca_true_valid_memsafety_true_termination_i__bubbleSortErr11RequiresViolation, __U_MULTI_fbubblesort_alloca_true_valid_memsafety_true_termination_i__bubbleSortErr8RequiresViolation, __U_MULTI_fbubblesort_alloca_true_valid_memsafety_true_termination_i__bubbleSortErr4RequiresViolation, __U_MULTI_fbubblesort_alloca_true_valid_memsafety_true_termination_i__bubbleSortErr5RequiresViolation, __U_MULTI_fbubblesort_alloca_true_valid_memsafety_true_termination_i__bubbleSortErr3RequiresViolation, mainErr0EnsuresViolationMEMORY_LEAK]=== [2018-04-05 15:20:22,879 INFO L82 PathProgramCache]: Analyzing trace with hash 2142875807, now seen corresponding path program 9 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 [2018-04-05 15:20:22,940 INFO L68 tionRefinementEngine]: Using refinement strategy FixedRefinementStrategy [2018-04-05 15:20:23,023 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-04-05 15:20:23,032 INFO L270 TraceCheckSpWp]: Computing forward predicates... [2018-04-05 15:20:25,120 INFO L134 CoverageAnalysis]: Checked inductivity of 515 backedges. 157 proven. 358 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-04-05 15:20:25,120 INFO L314 TraceCheckSpWp]: Computing backward predicates... [2018-04-05 15:20:26,488 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 13 treesize of output 11 [2018-04-05 15:20:26,489 INFO L267 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2018-04-05 15:20:26,507 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 1 xjuncts. [2018-04-05 15:20:26,508 INFO L202 ElimStorePlain]: Needed 2 recursive calls to eliminate 3 variables, input treesize:26, output treesize:13 [2018-04-05 15:20:26,958 INFO L134 CoverageAnalysis]: Checked inductivity of 515 backedges. 118 proven. 397 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-04-05 15:20:26,990 INFO L320 seRefinementStrategy]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2018-04-05 15:20:26,990 INFO L335 seRefinementStrategy]: Number of different interpolants: perfect sequences [] imperfect sequences [23, 23] total 34 [2018-04-05 15:20:26,990 INFO L442 AbstractCegarLoop]: Interpolant automaton has 35 states [2018-04-05 15:20:26,991 INFO L132 InterpolantAutomaton]: Constructing interpolant automaton starting with 35 interpolants. [2018-04-05 15:20:26,991 INFO L133 InterpolantAutomaton]: CoverageRelationStatistics Valid=174, Invalid=1016, Unknown=0, NotChecked=0, Total=1190 [2018-04-05 15:20:26,991 INFO L87 Difference]: Start difference. First operand 262 states and 278 transitions. Second operand 35 states. [2018-04-05 15:20:32,988 WARN L151 SmtUtils]: Spent 120ms on a formula simplification. DAG size of input: 23 DAG size of output 21 [2018-04-05 15:20:33,446 WARN L151 SmtUtils]: Spent 196ms on a formula simplification. DAG size of input: 26 DAG size of output 24 [2018-04-05 15:20:33,750 WARN L151 SmtUtils]: Spent 166ms on a formula simplification. DAG size of input: 27 DAG size of output 25 [2018-04-05 15:20:34,733 WARN L151 SmtUtils]: Spent 413ms on a formula simplification. DAG size of input: 26 DAG size of output 24 [2018-04-05 15:20:35,192 WARN L151 SmtUtils]: Spent 284ms on a formula simplification. DAG size of input: 27 DAG size of output 25 [2018-04-05 15:20:36,044 WARN L151 SmtUtils]: Spent 148ms on a formula simplification. DAG size of input: 26 DAG size of output 24 [2018-04-05 15:20:36,573 WARN L151 SmtUtils]: Spent 228ms on a formula simplification. DAG size of input: 26 DAG size of output 24 [2018-04-05 15:20:36,892 WARN L151 SmtUtils]: Spent 140ms on a formula simplification. DAG size of input: 22 DAG size of output 20 [2018-04-05 15:20:37,948 WARN L151 SmtUtils]: Spent 246ms on a formula simplification. DAG size of input: 25 DAG size of output 23 [2018-04-05 15:20:39,075 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-04-05 15:20:39,075 INFO L93 Difference]: Finished difference Result 263 states and 278 transitions. [2018-04-05 15:20:39,075 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 40 states. [2018-04-05 15:20:39,075 INFO L78 Accepts]: Start accepts. Automaton has 35 states. Word has length 134 [2018-04-05 15:20:39,076 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-04-05 15:20:39,077 INFO L225 Difference]: With dead ends: 263 [2018-04-05 15:20:39,077 INFO L226 Difference]: Without dead ends: 262 [2018-04-05 15:20:39,079 INFO L567 BasicCegarLoop]: 0 DeclaredPredicates, 301 GetRequests, 224 SyntacticMatches, 11 SemanticMatches, 66 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1311 ImplicationChecksByTransitivity, 8.9s TimeCoverageRelationStatistics Valid=816, Invalid=3740, Unknown=0, NotChecked=0, Total=4556 [2018-04-05 15:20:39,079 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 262 states. [2018-04-05 15:20:39,155 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 262 to 262. [2018-04-05 15:20:39,155 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 262 states. [2018-04-05 15:20:39,157 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 262 states to 262 states and 277 transitions. [2018-04-05 15:20:39,157 INFO L78 Accepts]: Start accepts. Automaton has 262 states and 277 transitions. Word has length 134 [2018-04-05 15:20:39,158 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-04-05 15:20:39,158 INFO L459 AbstractCegarLoop]: Abstraction has 262 states and 277 transitions. [2018-04-05 15:20:39,158 INFO L460 AbstractCegarLoop]: Interpolant automaton has 35 states. [2018-04-05 15:20:39,158 INFO L276 IsEmpty]: Start isEmpty. Operand 262 states and 277 transitions. [2018-04-05 15:20:39,159 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 145 [2018-04-05 15:20:39,159 INFO L347 BasicCegarLoop]: Found error trace [2018-04-05 15:20:39,160 INFO L355 BasicCegarLoop]: trace histogram [13, 12, 12, 11, 11, 11, 11, 11, 11, 11, 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] [2018-04-05 15:20:39,168 INFO L408 AbstractCegarLoop]: === Iteration 18 === [__U_MULTI_fbubblesort_alloca_true_valid_memsafety_true_termination_i__bubbleSortErr0RequiresViolation, __U_MULTI_fbubblesort_alloca_true_valid_memsafety_true_termination_i__bubbleSortErr9RequiresViolation, __U_MULTI_fbubblesort_alloca_true_valid_memsafety_true_termination_i__bubbleSortErr2RequiresViolation, __U_MULTI_fbubblesort_alloca_true_valid_memsafety_true_termination_i__bubbleSortErr10RequiresViolation, __U_MULTI_fbubblesort_alloca_true_valid_memsafety_true_termination_i__bubbleSortErr6RequiresViolation, __U_MULTI_fbubblesort_alloca_true_valid_memsafety_true_termination_i__bubbleSortErr1RequiresViolation, __U_MULTI_fbubblesort_alloca_true_valid_memsafety_true_termination_i__bubbleSortErr7RequiresViolation, __U_MULTI_fbubblesort_alloca_true_valid_memsafety_true_termination_i__bubbleSortErr11RequiresViolation, __U_MULTI_fbubblesort_alloca_true_valid_memsafety_true_termination_i__bubbleSortErr8RequiresViolation, __U_MULTI_fbubblesort_alloca_true_valid_memsafety_true_termination_i__bubbleSortErr4RequiresViolation, __U_MULTI_fbubblesort_alloca_true_valid_memsafety_true_termination_i__bubbleSortErr5RequiresViolation, __U_MULTI_fbubblesort_alloca_true_valid_memsafety_true_termination_i__bubbleSortErr3RequiresViolation, mainErr0EnsuresViolationMEMORY_LEAK]=== [2018-04-05 15:20:39,168 INFO L82 PathProgramCache]: Analyzing trace with hash -1458552309, now seen corresponding path program 10 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 [2018-04-05 15:20:39,199 INFO L68 tionRefinementEngine]: Using refinement strategy FixedRefinementStrategy [2018-04-05 15:20:39,253 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-04-05 15:20:39,258 INFO L270 TraceCheckSpWp]: Computing forward predicates... [2018-04-05 15:20:42,599 INFO L134 CoverageAnalysis]: Checked inductivity of 621 backedges. 135 proven. 486 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-04-05 15:20:42,599 INFO L314 TraceCheckSpWp]: Computing backward predicates... [2018-04-05 15:20:45,209 INFO L134 CoverageAnalysis]: Checked inductivity of 621 backedges. 135 proven. 486 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-04-05 15:20:45,246 INFO L320 seRefinementStrategy]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2018-04-05 15:20:45,246 INFO L335 seRefinementStrategy]: Number of different interpolants: perfect sequences [] imperfect sequences [29, 29] total 40 [2018-04-05 15:20:45,247 INFO L442 AbstractCegarLoop]: Interpolant automaton has 40 states [2018-04-05 15:20:45,247 INFO L132 InterpolantAutomaton]: Constructing interpolant automaton starting with 40 interpolants. [2018-04-05 15:20:45,247 INFO L133 InterpolantAutomaton]: CoverageRelationStatistics Valid=222, Invalid=1338, Unknown=0, NotChecked=0, Total=1560 [2018-04-05 15:20:45,248 INFO L87 Difference]: Start difference. First operand 262 states and 277 transitions. Second operand 40 states. [2018-04-05 15:20:50,656 WARN L148 SmtUtils]: Spent 128ms on a formula simplification that was a NOOP. DAG size: 11 [2018-04-05 15:20:53,716 WARN L148 SmtUtils]: Spent 125ms on a formula simplification that was a NOOP. DAG size: 10 [2018-04-05 15:20:53,972 WARN L148 SmtUtils]: Spent 103ms on a formula simplification that was a NOOP. DAG size: 11 [2018-04-05 15:20:54,770 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-04-05 15:20:54,770 INFO L93 Difference]: Finished difference Result 560 states and 593 transitions. [2018-04-05 15:20:54,771 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 42 states. [2018-04-05 15:20:54,771 INFO L78 Accepts]: Start accepts. Automaton has 40 states. Word has length 144 [2018-04-05 15:20:54,772 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-04-05 15:20:54,773 INFO L225 Difference]: With dead ends: 560 [2018-04-05 15:20:54,774 INFO L226 Difference]: Without dead ends: 334 [2018-04-05 15:20:54,777 INFO L567 BasicCegarLoop]: 0 DeclaredPredicates, 320 GetRequests, 234 SyntacticMatches, 16 SemanticMatches, 70 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1390 ImplicationChecksByTransitivity, 11.0s TimeCoverageRelationStatistics Valid=887, Invalid=4225, Unknown=0, NotChecked=0, Total=5112 [2018-04-05 15:20:54,778 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 334 states. [2018-04-05 15:20:54,815 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 334 to 300. [2018-04-05 15:20:54,816 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 300 states. [2018-04-05 15:20:54,818 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 300 states to 300 states and 318 transitions. [2018-04-05 15:20:54,819 INFO L78 Accepts]: Start accepts. Automaton has 300 states and 318 transitions. Word has length 144 [2018-04-05 15:20:54,819 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-04-05 15:20:54,819 INFO L459 AbstractCegarLoop]: Abstraction has 300 states and 318 transitions. [2018-04-05 15:20:54,819 INFO L460 AbstractCegarLoop]: Interpolant automaton has 40 states. [2018-04-05 15:20:54,819 INFO L276 IsEmpty]: Start isEmpty. Operand 300 states and 318 transitions. [2018-04-05 15:20:54,821 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 155 [2018-04-05 15:20:54,822 INFO L347 BasicCegarLoop]: Found error trace [2018-04-05 15:20:54,822 INFO L355 BasicCegarLoop]: trace histogram [14, 13, 13, 12, 12, 12, 12, 12, 12, 12, 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] [2018-04-05 15:20:54,822 INFO L408 AbstractCegarLoop]: === Iteration 19 === [__U_MULTI_fbubblesort_alloca_true_valid_memsafety_true_termination_i__bubbleSortErr0RequiresViolation, __U_MULTI_fbubblesort_alloca_true_valid_memsafety_true_termination_i__bubbleSortErr9RequiresViolation, __U_MULTI_fbubblesort_alloca_true_valid_memsafety_true_termination_i__bubbleSortErr2RequiresViolation, __U_MULTI_fbubblesort_alloca_true_valid_memsafety_true_termination_i__bubbleSortErr10RequiresViolation, __U_MULTI_fbubblesort_alloca_true_valid_memsafety_true_termination_i__bubbleSortErr6RequiresViolation, __U_MULTI_fbubblesort_alloca_true_valid_memsafety_true_termination_i__bubbleSortErr1RequiresViolation, __U_MULTI_fbubblesort_alloca_true_valid_memsafety_true_termination_i__bubbleSortErr7RequiresViolation, __U_MULTI_fbubblesort_alloca_true_valid_memsafety_true_termination_i__bubbleSortErr11RequiresViolation, __U_MULTI_fbubblesort_alloca_true_valid_memsafety_true_termination_i__bubbleSortErr8RequiresViolation, __U_MULTI_fbubblesort_alloca_true_valid_memsafety_true_termination_i__bubbleSortErr4RequiresViolation, __U_MULTI_fbubblesort_alloca_true_valid_memsafety_true_termination_i__bubbleSortErr5RequiresViolation, __U_MULTI_fbubblesort_alloca_true_valid_memsafety_true_termination_i__bubbleSortErr3RequiresViolation, mainErr0EnsuresViolationMEMORY_LEAK]=== [2018-04-05 15:20:54,822 INFO L82 PathProgramCache]: Analyzing trace with hash -1612877321, now seen corresponding path program 11 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 [2018-04-05 15:20:54,848 INFO L68 tionRefinementEngine]: Using refinement strategy FixedRefinementStrategy [2018-04-05 15:20:54,962 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-04-05 15:20:54,971 INFO L270 TraceCheckSpWp]: Computing forward predicates... [2018-04-05 15:20:57,607 INFO L134 CoverageAnalysis]: Checked inductivity of 737 backedges. 219 proven. 518 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-04-05 15:20:57,607 INFO L314 TraceCheckSpWp]: Computing backward predicates... [2018-04-05 15:20:59,941 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 13 treesize of output 11 [2018-04-05 15:20:59,941 INFO L267 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2018-04-05 15:20:59,965 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 1 xjuncts. [2018-04-05 15:20:59,965 INFO L202 ElimStorePlain]: Needed 2 recursive calls to eliminate 3 variables, input treesize:26, output treesize:13 [2018-04-05 15:21:01,227 INFO L134 CoverageAnalysis]: Checked inductivity of 737 backedges. 171 proven. 566 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-04-05 15:21:01,265 INFO L320 seRefinementStrategy]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2018-04-05 15:21:01,265 INFO L335 seRefinementStrategy]: Number of different interpolants: perfect sequences [] imperfect sequences [27, 27] total 40 [2018-04-05 15:21:01,266 INFO L442 AbstractCegarLoop]: Interpolant automaton has 41 states [2018-04-05 15:21:01,266 INFO L132 InterpolantAutomaton]: Constructing interpolant automaton starting with 41 interpolants. [2018-04-05 15:21:01,266 INFO L133 InterpolantAutomaton]: CoverageRelationStatistics Valid=230, Invalid=1410, Unknown=0, NotChecked=0, Total=1640 [2018-04-05 15:21:01,267 INFO L87 Difference]: Start difference. First operand 300 states and 318 transitions. Second operand 41 states. [2018-04-05 15:21:08,002 WARN L151 SmtUtils]: Spent 238ms on a formula simplification. DAG size of input: 21 DAG size of output 18 [2018-04-05 15:21:09,435 WARN L151 SmtUtils]: Spent 190ms on a formula simplification. DAG size of input: 23 DAG size of output 21 [2018-04-05 15:21:10,025 WARN L151 SmtUtils]: Spent 270ms on a formula simplification. DAG size of input: 26 DAG size of output 24 [2018-04-05 15:21:10,435 WARN L151 SmtUtils]: Spent 230ms on a formula simplification. DAG size of input: 27 DAG size of output 25 [2018-04-05 15:21:11,102 WARN L151 SmtUtils]: Spent 106ms on a formula simplification. DAG size of input: 26 DAG size of output 24 [2018-04-05 15:21:11,413 WARN L151 SmtUtils]: Spent 156ms on a formula simplification. DAG size of input: 27 DAG size of output 25 [2018-04-05 15:21:12,379 WARN L151 SmtUtils]: Spent 226ms on a formula simplification. DAG size of input: 26 DAG size of output 24 [2018-04-05 15:21:12,695 WARN L151 SmtUtils]: Spent 151ms on a formula simplification. DAG size of input: 26 DAG size of output 24 [2018-04-05 15:21:13,781 WARN L151 SmtUtils]: Spent 121ms on a formula simplification. DAG size of input: 25 DAG size of output 23 [2018-04-05 15:21:14,034 WARN L151 SmtUtils]: Spent 108ms on a formula simplification. DAG size of input: 26 DAG size of output 24 [2018-04-05 15:21:14,954 WARN L151 SmtUtils]: Spent 249ms on a formula simplification. DAG size of input: 26 DAG size of output 24 [2018-04-05 15:21:16,283 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-04-05 15:21:16,283 INFO L93 Difference]: Finished difference Result 301 states and 318 transitions. [2018-04-05 15:21:16,284 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 47 states. [2018-04-05 15:21:16,284 INFO L78 Accepts]: Start accepts. Automaton has 41 states. Word has length 154 [2018-04-05 15:21:16,285 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-04-05 15:21:16,286 INFO L225 Difference]: With dead ends: 301 [2018-04-05 15:21:16,286 INFO L226 Difference]: Without dead ends: 300 [2018-04-05 15:21:16,288 INFO L567 BasicCegarLoop]: 0 DeclaredPredicates, 347 GetRequests, 256 SyntacticMatches, 13 SemanticMatches, 78 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1918 ImplicationChecksByTransitivity, 12.2s TimeCoverageRelationStatistics Valid=1091, Invalid=5229, Unknown=0, NotChecked=0, Total=6320 [2018-04-05 15:21:16,289 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 300 states. [2018-04-05 15:21:16,364 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 300 to 300. [2018-04-05 15:21:16,373 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 300 states. [2018-04-05 15:21:16,374 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 300 states to 300 states and 317 transitions. [2018-04-05 15:21:16,375 INFO L78 Accepts]: Start accepts. Automaton has 300 states and 317 transitions. Word has length 154 [2018-04-05 15:21:16,375 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-04-05 15:21:16,375 INFO L459 AbstractCegarLoop]: Abstraction has 300 states and 317 transitions. [2018-04-05 15:21:16,375 INFO L460 AbstractCegarLoop]: Interpolant automaton has 41 states. [2018-04-05 15:21:16,376 INFO L276 IsEmpty]: Start isEmpty. Operand 300 states and 317 transitions. [2018-04-05 15:21:16,378 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 165 [2018-04-05 15:21:16,378 INFO L347 BasicCegarLoop]: Found error trace [2018-04-05 15:21:16,378 INFO L355 BasicCegarLoop]: trace histogram [15, 14, 14, 13, 13, 13, 13, 13, 13, 13, 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] [2018-04-05 15:21:16,378 INFO L408 AbstractCegarLoop]: === Iteration 20 === [__U_MULTI_fbubblesort_alloca_true_valid_memsafety_true_termination_i__bubbleSortErr0RequiresViolation, __U_MULTI_fbubblesort_alloca_true_valid_memsafety_true_termination_i__bubbleSortErr9RequiresViolation, __U_MULTI_fbubblesort_alloca_true_valid_memsafety_true_termination_i__bubbleSortErr2RequiresViolation, __U_MULTI_fbubblesort_alloca_true_valid_memsafety_true_termination_i__bubbleSortErr10RequiresViolation, __U_MULTI_fbubblesort_alloca_true_valid_memsafety_true_termination_i__bubbleSortErr6RequiresViolation, __U_MULTI_fbubblesort_alloca_true_valid_memsafety_true_termination_i__bubbleSortErr1RequiresViolation, __U_MULTI_fbubblesort_alloca_true_valid_memsafety_true_termination_i__bubbleSortErr7RequiresViolation, __U_MULTI_fbubblesort_alloca_true_valid_memsafety_true_termination_i__bubbleSortErr11RequiresViolation, __U_MULTI_fbubblesort_alloca_true_valid_memsafety_true_termination_i__bubbleSortErr8RequiresViolation, __U_MULTI_fbubblesort_alloca_true_valid_memsafety_true_termination_i__bubbleSortErr4RequiresViolation, __U_MULTI_fbubblesort_alloca_true_valid_memsafety_true_termination_i__bubbleSortErr5RequiresViolation, __U_MULTI_fbubblesort_alloca_true_valid_memsafety_true_termination_i__bubbleSortErr3RequiresViolation, mainErr0EnsuresViolationMEMORY_LEAK]=== [2018-04-05 15:21:16,379 INFO L82 PathProgramCache]: Analyzing trace with hash -757844637, now seen corresponding path program 12 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 [2018-04-05 15:21:16,420 INFO L68 tionRefinementEngine]: Using refinement strategy FixedRefinementStrategy [2018-04-05 15:21:16,476 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-04-05 15:21:16,480 INFO L270 TraceCheckSpWp]: Computing forward predicates... [2018-04-05 15:21:19,557 INFO L134 CoverageAnalysis]: Checked inductivity of 863 backedges. 191 proven. 672 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-04-05 15:21:19,558 INFO L314 TraceCheckSpWp]: Computing backward predicates... [2018-04-05 15:21:25,529 INFO L134 CoverageAnalysis]: Checked inductivity of 863 backedges. 191 proven. 672 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-04-05 15:21:25,602 INFO L320 seRefinementStrategy]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2018-04-05 15:21:25,657 INFO L335 seRefinementStrategy]: Number of different interpolants: perfect sequences [] imperfect sequences [33, 33] total 46 [2018-04-05 15:21:25,658 INFO L442 AbstractCegarLoop]: Interpolant automaton has 46 states [2018-04-05 15:21:25,659 INFO L132 InterpolantAutomaton]: Constructing interpolant automaton starting with 46 interpolants. [2018-04-05 15:21:25,672 INFO L133 InterpolantAutomaton]: CoverageRelationStatistics Valid=286, Invalid=1784, Unknown=0, NotChecked=0, Total=2070 [2018-04-05 15:21:25,673 INFO L87 Difference]: Start difference. First operand 300 states and 317 transitions. Second operand 46 states. [2018-04-05 15:21:32,844 WARN L148 SmtUtils]: Spent 162ms on a formula simplification that was a NOOP. DAG size: 11 [2018-04-05 15:21:34,968 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-04-05 15:21:34,968 INFO L93 Difference]: Finished difference Result 636 states and 673 transitions. [2018-04-05 15:21:34,969 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 48 states. [2018-04-05 15:21:34,969 INFO L78 Accepts]: Start accepts. Automaton has 46 states. Word has length 164 [2018-04-05 15:21:34,970 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-04-05 15:21:34,972 INFO L225 Difference]: With dead ends: 636 [2018-04-05 15:21:34,972 INFO L226 Difference]: Without dead ends: 372 [2018-04-05 15:21:34,989 INFO L567 BasicCegarLoop]: 0 DeclaredPredicates, 365 GetRequests, 266 SyntacticMatches, 18 SemanticMatches, 81 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1894 ImplicationChecksByTransitivity, 14.5s TimeCoverageRelationStatistics Valid=1156, Invalid=5650, Unknown=0, NotChecked=0, Total=6806 [2018-04-05 15:21:34,989 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 372 states. [2018-04-05 15:21:35,066 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 372 to 338. [2018-04-05 15:21:35,066 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 338 states. [2018-04-05 15:21:35,067 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 338 states to 338 states and 358 transitions. [2018-04-05 15:21:35,067 INFO L78 Accepts]: Start accepts. Automaton has 338 states and 358 transitions. Word has length 164 [2018-04-05 15:21:35,068 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-04-05 15:21:35,068 INFO L459 AbstractCegarLoop]: Abstraction has 338 states and 358 transitions. [2018-04-05 15:21:35,068 INFO L460 AbstractCegarLoop]: Interpolant automaton has 46 states. [2018-04-05 15:21:35,068 INFO L276 IsEmpty]: Start isEmpty. Operand 338 states and 358 transitions. [2018-04-05 15:21:35,069 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 175 [2018-04-05 15:21:35,069 INFO L347 BasicCegarLoop]: Found error trace [2018-04-05 15:21:35,070 INFO L355 BasicCegarLoop]: trace histogram [16, 15, 15, 14, 14, 14, 14, 14, 14, 14, 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] [2018-04-05 15:21:35,070 INFO L408 AbstractCegarLoop]: === Iteration 21 === [__U_MULTI_fbubblesort_alloca_true_valid_memsafety_true_termination_i__bubbleSortErr0RequiresViolation, __U_MULTI_fbubblesort_alloca_true_valid_memsafety_true_termination_i__bubbleSortErr9RequiresViolation, __U_MULTI_fbubblesort_alloca_true_valid_memsafety_true_termination_i__bubbleSortErr2RequiresViolation, __U_MULTI_fbubblesort_alloca_true_valid_memsafety_true_termination_i__bubbleSortErr10RequiresViolation, __U_MULTI_fbubblesort_alloca_true_valid_memsafety_true_termination_i__bubbleSortErr6RequiresViolation, __U_MULTI_fbubblesort_alloca_true_valid_memsafety_true_termination_i__bubbleSortErr1RequiresViolation, __U_MULTI_fbubblesort_alloca_true_valid_memsafety_true_termination_i__bubbleSortErr7RequiresViolation, __U_MULTI_fbubblesort_alloca_true_valid_memsafety_true_termination_i__bubbleSortErr11RequiresViolation, __U_MULTI_fbubblesort_alloca_true_valid_memsafety_true_termination_i__bubbleSortErr8RequiresViolation, __U_MULTI_fbubblesort_alloca_true_valid_memsafety_true_termination_i__bubbleSortErr4RequiresViolation, __U_MULTI_fbubblesort_alloca_true_valid_memsafety_true_termination_i__bubbleSortErr5RequiresViolation, __U_MULTI_fbubblesort_alloca_true_valid_memsafety_true_termination_i__bubbleSortErr3RequiresViolation, mainErr0EnsuresViolationMEMORY_LEAK]=== [2018-04-05 15:21:35,070 INFO L82 PathProgramCache]: Analyzing trace with hash 322320207, now seen corresponding path program 13 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 [2018-04-05 15:21:35,103 INFO L68 tionRefinementEngine]: Using refinement strategy FixedRefinementStrategy [2018-04-05 15:21:35,182 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-04-05 15:21:35,188 INFO L270 TraceCheckSpWp]: Computing forward predicates... [2018-04-05 15:21:38,611 INFO L134 CoverageAnalysis]: Checked inductivity of 999 backedges. 291 proven. 708 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-04-05 15:21:38,611 INFO L314 TraceCheckSpWp]: Computing backward predicates... [2018-04-05 15:21:40,507 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 13 treesize of output 11 [2018-04-05 15:21:40,508 INFO L267 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2018-04-05 15:21:40,524 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 1 xjuncts. [2018-04-05 15:21:40,525 INFO L202 ElimStorePlain]: Needed 2 recursive calls to eliminate 3 variables, input treesize:26, output treesize:13 [2018-04-05 15:21:41,594 INFO L134 CoverageAnalysis]: Checked inductivity of 999 backedges. 234 proven. 765 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-04-05 15:21:41,631 INFO L320 seRefinementStrategy]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2018-04-05 15:21:41,631 INFO L335 seRefinementStrategy]: Number of different interpolants: perfect sequences [] imperfect sequences [31, 31] total 46 [2018-04-05 15:21:41,631 INFO L442 AbstractCegarLoop]: Interpolant automaton has 47 states [2018-04-05 15:21:41,632 INFO L132 InterpolantAutomaton]: Constructing interpolant automaton starting with 47 interpolants. [2018-04-05 15:21:41,632 INFO L133 InterpolantAutomaton]: CoverageRelationStatistics Valid=294, Invalid=1868, Unknown=0, NotChecked=0, Total=2162 [2018-04-05 15:21:41,633 INFO L87 Difference]: Start difference. First operand 338 states and 358 transitions. Second operand 47 states. [2018-04-05 15:21:44,320 WARN L148 SmtUtils]: Spent 215ms on a formula simplification that was a NOOP. DAG size: 17 [2018-04-05 15:21:49,797 WARN L151 SmtUtils]: Spent 601ms on a formula simplification. DAG size of input: 22 DAG size of output 17 [2018-04-05 15:21:51,634 WARN L151 SmtUtils]: Spent 104ms on a formula simplification. DAG size of input: 26 DAG size of output 24 [2018-04-05 15:21:52,522 WARN L151 SmtUtils]: Spent 116ms on a formula simplification. DAG size of input: 27 DAG size of output 25 [2018-04-05 15:21:52,960 WARN L151 SmtUtils]: Spent 244ms on a formula simplification. DAG size of input: 23 DAG size of output 21 [2018-04-05 15:21:53,378 WARN L151 SmtUtils]: Spent 101ms on a formula simplification. DAG size of input: 26 DAG size of output 24 [2018-04-05 15:21:53,608 WARN L151 SmtUtils]: Spent 102ms on a formula simplification. DAG size of input: 26 DAG size of output 24 [2018-04-05 15:21:54,479 WARN L151 SmtUtils]: Spent 104ms on a formula simplification. DAG size of input: 26 DAG size of output 24 [2018-04-05 15:21:55,183 WARN L151 SmtUtils]: Spent 175ms on a formula simplification. DAG size of input: 26 DAG size of output 24 [2018-04-05 15:21:55,474 WARN L151 SmtUtils]: Spent 179ms on a formula simplification. DAG size of input: 27 DAG size of output 25 [2018-04-05 15:21:57,528 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-04-05 15:21:57,529 INFO L93 Difference]: Finished difference Result 339 states and 358 transitions. [2018-04-05 15:21:57,529 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 54 states. [2018-04-05 15:21:57,529 INFO L78 Accepts]: Start accepts. Automaton has 47 states. Word has length 174 [2018-04-05 15:21:57,530 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-04-05 15:21:57,531 INFO L225 Difference]: With dead ends: 339 [2018-04-05 15:21:57,532 INFO L226 Difference]: Without dead ends: 338 [2018-04-05 15:21:57,535 INFO L567 BasicCegarLoop]: 0 DeclaredPredicates, 393 GetRequests, 288 SyntacticMatches, 15 SemanticMatches, 90 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2640 ImplicationChecksByTransitivity, 13.5s TimeCoverageRelationStatistics Valid=1406, Invalid=6966, Unknown=0, NotChecked=0, Total=8372 [2018-04-05 15:21:57,536 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 338 states. [2018-04-05 15:21:57,633 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 338 to 338. [2018-04-05 15:21:57,633 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 338 states. [2018-04-05 15:21:57,634 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 338 states to 338 states and 357 transitions. [2018-04-05 15:21:57,635 INFO L78 Accepts]: Start accepts. Automaton has 338 states and 357 transitions. Word has length 174 [2018-04-05 15:21:57,635 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-04-05 15:21:57,635 INFO L459 AbstractCegarLoop]: Abstraction has 338 states and 357 transitions. [2018-04-05 15:21:57,636 INFO L460 AbstractCegarLoop]: Interpolant automaton has 47 states. [2018-04-05 15:21:57,636 INFO L276 IsEmpty]: Start isEmpty. Operand 338 states and 357 transitions. [2018-04-05 15:21:57,637 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 185 [2018-04-05 15:21:57,637 INFO L347 BasicCegarLoop]: Found error trace [2018-04-05 15:21:57,637 INFO L355 BasicCegarLoop]: trace histogram [17, 16, 16, 15, 15, 15, 15, 15, 15, 15, 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] [2018-04-05 15:21:57,638 INFO L408 AbstractCegarLoop]: === Iteration 22 === [__U_MULTI_fbubblesort_alloca_true_valid_memsafety_true_termination_i__bubbleSortErr0RequiresViolation, __U_MULTI_fbubblesort_alloca_true_valid_memsafety_true_termination_i__bubbleSortErr9RequiresViolation, __U_MULTI_fbubblesort_alloca_true_valid_memsafety_true_termination_i__bubbleSortErr2RequiresViolation, __U_MULTI_fbubblesort_alloca_true_valid_memsafety_true_termination_i__bubbleSortErr10RequiresViolation, __U_MULTI_fbubblesort_alloca_true_valid_memsafety_true_termination_i__bubbleSortErr6RequiresViolation, __U_MULTI_fbubblesort_alloca_true_valid_memsafety_true_termination_i__bubbleSortErr1RequiresViolation, __U_MULTI_fbubblesort_alloca_true_valid_memsafety_true_termination_i__bubbleSortErr7RequiresViolation, __U_MULTI_fbubblesort_alloca_true_valid_memsafety_true_termination_i__bubbleSortErr11RequiresViolation, __U_MULTI_fbubblesort_alloca_true_valid_memsafety_true_termination_i__bubbleSortErr8RequiresViolation, __U_MULTI_fbubblesort_alloca_true_valid_memsafety_true_termination_i__bubbleSortErr4RequiresViolation, __U_MULTI_fbubblesort_alloca_true_valid_memsafety_true_termination_i__bubbleSortErr5RequiresViolation, __U_MULTI_fbubblesort_alloca_true_valid_memsafety_true_termination_i__bubbleSortErr3RequiresViolation, mainErr0EnsuresViolationMEMORY_LEAK]=== [2018-04-05 15:21:57,638 INFO L82 PathProgramCache]: Analyzing trace with hash 609758395, now seen corresponding path program 14 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 [2018-04-05 15:21:57,659 INFO L68 tionRefinementEngine]: Using refinement strategy FixedRefinementStrategy [2018-04-05 15:21:57,766 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-04-05 15:21:57,775 INFO L270 TraceCheckSpWp]: Computing forward predicates... [2018-04-05 15:22:01,517 INFO L134 CoverageAnalysis]: Checked inductivity of 1145 backedges. 257 proven. 888 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-04-05 15:22:01,517 INFO L314 TraceCheckSpWp]: Computing backward predicates... [2018-04-05 15:22:05,608 INFO L134 CoverageAnalysis]: Checked inductivity of 1145 backedges. 257 proven. 888 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-04-05 15:22:05,644 INFO L320 seRefinementStrategy]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2018-04-05 15:22:05,644 INFO L335 seRefinementStrategy]: Number of different interpolants: perfect sequences [] imperfect sequences [37, 37] total 52 [2018-04-05 15:22:05,645 INFO L442 AbstractCegarLoop]: Interpolant automaton has 52 states [2018-04-05 15:22:05,645 INFO L132 InterpolantAutomaton]: Constructing interpolant automaton starting with 52 interpolants. [2018-04-05 15:22:05,646 INFO L133 InterpolantAutomaton]: CoverageRelationStatistics Valid=358, Invalid=2294, Unknown=0, NotChecked=0, Total=2652 [2018-04-05 15:22:05,646 INFO L87 Difference]: Start difference. First operand 338 states and 357 transitions. Second operand 52 states. [2018-04-05 15:22:13,678 WARN L148 SmtUtils]: Spent 115ms on a formula simplification that was a NOOP. DAG size: 11 [2018-04-05 15:22:17,483 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-04-05 15:22:17,483 INFO L93 Difference]: Finished difference Result 712 states and 753 transitions. [2018-04-05 15:22:17,486 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 54 states. [2018-04-05 15:22:17,487 INFO L78 Accepts]: Start accepts. Automaton has 52 states. Word has length 184 [2018-04-05 15:22:17,488 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-04-05 15:22:17,489 INFO L225 Difference]: With dead ends: 712 [2018-04-05 15:22:17,489 INFO L226 Difference]: Without dead ends: 410 [2018-04-05 15:22:17,491 INFO L567 BasicCegarLoop]: 0 DeclaredPredicates, 410 GetRequests, 298 SyntacticMatches, 20 SemanticMatches, 92 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2476 ImplicationChecksByTransitivity, 13.5s TimeCoverageRelationStatistics Valid=1460, Invalid=7282, Unknown=0, NotChecked=0, Total=8742 [2018-04-05 15:22:17,492 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 410 states. [2018-04-05 15:22:17,556 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 410 to 376. [2018-04-05 15:22:17,556 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 376 states. [2018-04-05 15:22:17,557 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 376 states to 376 states and 398 transitions. [2018-04-05 15:22:17,567 INFO L78 Accepts]: Start accepts. Automaton has 376 states and 398 transitions. Word has length 184 [2018-04-05 15:22:17,567 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-04-05 15:22:17,568 INFO L459 AbstractCegarLoop]: Abstraction has 376 states and 398 transitions. [2018-04-05 15:22:17,568 INFO L460 AbstractCegarLoop]: Interpolant automaton has 52 states. [2018-04-05 15:22:17,568 INFO L276 IsEmpty]: Start isEmpty. Operand 376 states and 398 transitions. [2018-04-05 15:22:17,569 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 195 [2018-04-05 15:22:17,569 INFO L347 BasicCegarLoop]: Found error trace [2018-04-05 15:22:17,570 INFO L355 BasicCegarLoop]: trace histogram [18, 17, 17, 16, 16, 16, 16, 16, 16, 16, 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] [2018-04-05 15:22:17,570 INFO L408 AbstractCegarLoop]: === Iteration 23 === [__U_MULTI_fbubblesort_alloca_true_valid_memsafety_true_termination_i__bubbleSortErr0RequiresViolation, __U_MULTI_fbubblesort_alloca_true_valid_memsafety_true_termination_i__bubbleSortErr9RequiresViolation, __U_MULTI_fbubblesort_alloca_true_valid_memsafety_true_termination_i__bubbleSortErr2RequiresViolation, __U_MULTI_fbubblesort_alloca_true_valid_memsafety_true_termination_i__bubbleSortErr10RequiresViolation, __U_MULTI_fbubblesort_alloca_true_valid_memsafety_true_termination_i__bubbleSortErr6RequiresViolation, __U_MULTI_fbubblesort_alloca_true_valid_memsafety_true_termination_i__bubbleSortErr1RequiresViolation, __U_MULTI_fbubblesort_alloca_true_valid_memsafety_true_termination_i__bubbleSortErr7RequiresViolation, __U_MULTI_fbubblesort_alloca_true_valid_memsafety_true_termination_i__bubbleSortErr11RequiresViolation, __U_MULTI_fbubblesort_alloca_true_valid_memsafety_true_termination_i__bubbleSortErr8RequiresViolation, __U_MULTI_fbubblesort_alloca_true_valid_memsafety_true_termination_i__bubbleSortErr4RequiresViolation, __U_MULTI_fbubblesort_alloca_true_valid_memsafety_true_termination_i__bubbleSortErr5RequiresViolation, __U_MULTI_fbubblesort_alloca_true_valid_memsafety_true_termination_i__bubbleSortErr3RequiresViolation, mainErr0EnsuresViolationMEMORY_LEAK]=== [2018-04-05 15:22:17,570 INFO L82 PathProgramCache]: Analyzing trace with hash -1783496537, now seen corresponding path program 15 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 [2018-04-05 15:22:17,598 INFO L68 tionRefinementEngine]: Using refinement strategy FixedRefinementStrategy [2018-04-05 15:22:17,712 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-04-05 15:22:17,737 INFO L270 TraceCheckSpWp]: Computing forward predicates... [2018-04-05 15:22:21,662 WARN L148 SmtUtils]: Spent 181ms on a formula simplification that was a NOOP. DAG size: 20 [2018-04-05 15:22:21,802 INFO L134 CoverageAnalysis]: Checked inductivity of 1301 backedges. 373 proven. 928 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-04-05 15:22:21,802 INFO L314 TraceCheckSpWp]: Computing backward predicates... [2018-04-05 15:22:24,199 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 13 treesize of output 11 [2018-04-05 15:22:24,200 INFO L267 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2018-04-05 15:22:24,220 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 1 xjuncts. [2018-04-05 15:22:24,221 INFO L202 ElimStorePlain]: Needed 2 recursive calls to eliminate 3 variables, input treesize:26, output treesize:13 [2018-04-05 15:22:25,671 INFO L134 CoverageAnalysis]: Checked inductivity of 1301 backedges. 307 proven. 994 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-04-05 15:22:25,710 INFO L320 seRefinementStrategy]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2018-04-05 15:22:25,710 INFO L335 seRefinementStrategy]: Number of different interpolants: perfect sequences [] imperfect sequences [35, 35] total 52 [2018-04-05 15:22:25,711 INFO L442 AbstractCegarLoop]: Interpolant automaton has 53 states [2018-04-05 15:22:25,711 INFO L132 InterpolantAutomaton]: Constructing interpolant automaton starting with 53 interpolants. [2018-04-05 15:22:25,712 INFO L133 InterpolantAutomaton]: CoverageRelationStatistics Valid=366, Invalid=2390, Unknown=0, NotChecked=0, Total=2756 [2018-04-05 15:22:25,712 INFO L87 Difference]: Start difference. First operand 376 states and 398 transitions. Second operand 53 states. [2018-04-05 15:22:26,642 WARN L148 SmtUtils]: Spent 143ms on a formula simplification that was a NOOP. DAG size: 7 [2018-04-05 15:22:27,649 WARN L148 SmtUtils]: Spent 212ms on a formula simplification that was a NOOP. DAG size: 17 [2018-04-05 15:22:34,660 WARN L151 SmtUtils]: Spent 105ms on a formula simplification. DAG size of input: 26 DAG size of output 24 [2018-04-05 15:22:36,564 WARN L151 SmtUtils]: Spent 101ms on a formula simplification. DAG size of input: 26 DAG size of output 24 [2018-04-05 15:22:37,198 WARN L151 SmtUtils]: Spent 106ms on a formula simplification. DAG size of input: 26 DAG size of output 24 [2018-04-05 15:22:37,452 WARN L151 SmtUtils]: Spent 107ms on a formula simplification. DAG size of input: 27 DAG size of output 25 [2018-04-05 15:22:38,201 WARN L151 SmtUtils]: Spent 115ms on a formula simplification. DAG size of input: 26 DAG size of output 24 [2018-04-05 15:22:38,498 WARN L151 SmtUtils]: Spent 116ms on a formula simplification. DAG size of input: 27 DAG size of output 25 [2018-04-05 15:22:39,264 WARN L151 SmtUtils]: Spent 105ms on a formula simplification. DAG size of input: 26 DAG size of output 24 [2018-04-05 15:22:40,332 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-04-05 15:22:40,365 INFO L93 Difference]: Finished difference Result 377 states and 398 transitions. [2018-04-05 15:22:40,365 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 61 states. [2018-04-05 15:22:40,365 INFO L78 Accepts]: Start accepts. Automaton has 53 states. Word has length 194 [2018-04-05 15:22:40,366 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-04-05 15:22:40,368 INFO L225 Difference]: With dead ends: 377 [2018-04-05 15:22:40,368 INFO L226 Difference]: Without dead ends: 376 [2018-04-05 15:22:40,371 INFO L567 BasicCegarLoop]: 0 DeclaredPredicates, 439 GetRequests, 320 SyntacticMatches, 17 SemanticMatches, 102 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3477 ImplicationChecksByTransitivity, 14.5s TimeCoverageRelationStatistics Valid=1761, Invalid=8951, Unknown=0, NotChecked=0, Total=10712 [2018-04-05 15:22:40,371 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 376 states. [2018-04-05 15:22:40,437 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 376 to 376. [2018-04-05 15:22:40,437 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 376 states. [2018-04-05 15:22:40,438 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 376 states to 376 states and 397 transitions. [2018-04-05 15:22:40,438 INFO L78 Accepts]: Start accepts. Automaton has 376 states and 397 transitions. Word has length 194 [2018-04-05 15:22:40,439 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-04-05 15:22:40,439 INFO L459 AbstractCegarLoop]: Abstraction has 376 states and 397 transitions. [2018-04-05 15:22:40,439 INFO L460 AbstractCegarLoop]: Interpolant automaton has 53 states. [2018-04-05 15:22:40,439 INFO L276 IsEmpty]: Start isEmpty. Operand 376 states and 397 transitions. [2018-04-05 15:22:40,441 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 205 [2018-04-05 15:22:40,441 INFO L347 BasicCegarLoop]: Found error trace [2018-04-05 15:22:40,441 INFO L355 BasicCegarLoop]: trace histogram [19, 18, 18, 17, 17, 17, 17, 17, 17, 17, 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] [2018-04-05 15:22:40,441 INFO L408 AbstractCegarLoop]: === Iteration 24 === [__U_MULTI_fbubblesort_alloca_true_valid_memsafety_true_termination_i__bubbleSortErr0RequiresViolation, __U_MULTI_fbubblesort_alloca_true_valid_memsafety_true_termination_i__bubbleSortErr9RequiresViolation, __U_MULTI_fbubblesort_alloca_true_valid_memsafety_true_termination_i__bubbleSortErr2RequiresViolation, __U_MULTI_fbubblesort_alloca_true_valid_memsafety_true_termination_i__bubbleSortErr10RequiresViolation, __U_MULTI_fbubblesort_alloca_true_valid_memsafety_true_termination_i__bubbleSortErr6RequiresViolation, __U_MULTI_fbubblesort_alloca_true_valid_memsafety_true_termination_i__bubbleSortErr1RequiresViolation, __U_MULTI_fbubblesort_alloca_true_valid_memsafety_true_termination_i__bubbleSortErr7RequiresViolation, __U_MULTI_fbubblesort_alloca_true_valid_memsafety_true_termination_i__bubbleSortErr11RequiresViolation, __U_MULTI_fbubblesort_alloca_true_valid_memsafety_true_termination_i__bubbleSortErr8RequiresViolation, __U_MULTI_fbubblesort_alloca_true_valid_memsafety_true_termination_i__bubbleSortErr4RequiresViolation, __U_MULTI_fbubblesort_alloca_true_valid_memsafety_true_termination_i__bubbleSortErr5RequiresViolation, __U_MULTI_fbubblesort_alloca_true_valid_memsafety_true_termination_i__bubbleSortErr3RequiresViolation, mainErr0EnsuresViolationMEMORY_LEAK]=== [2018-04-05 15:22:40,441 INFO L82 PathProgramCache]: Analyzing trace with hash -938858477, now seen corresponding path program 16 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 [2018-04-05 15:22:40,465 INFO L68 tionRefinementEngine]: Using refinement strategy FixedRefinementStrategy [2018-04-05 15:22:40,542 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-04-05 15:22:40,548 INFO L270 TraceCheckSpWp]: Computing forward predicates... [2018-04-05 15:22:45,155 INFO L134 CoverageAnalysis]: Checked inductivity of 1467 backedges. 333 proven. 1134 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-04-05 15:22:45,155 INFO L314 TraceCheckSpWp]: Computing backward predicates... [2018-04-05 15:22:50,192 INFO L134 CoverageAnalysis]: Checked inductivity of 1467 backedges. 333 proven. 1134 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-04-05 15:22:50,230 INFO L320 seRefinementStrategy]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2018-04-05 15:22:50,230 INFO L335 seRefinementStrategy]: Number of different interpolants: perfect sequences [] imperfect sequences [41, 41] total 58 [2018-04-05 15:22:50,231 INFO L442 AbstractCegarLoop]: Interpolant automaton has 58 states [2018-04-05 15:22:50,232 INFO L132 InterpolantAutomaton]: Constructing interpolant automaton starting with 58 interpolants. [2018-04-05 15:22:50,232 INFO L133 InterpolantAutomaton]: CoverageRelationStatistics Valid=438, Invalid=2868, Unknown=0, NotChecked=0, Total=3306 [2018-04-05 15:22:50,232 INFO L87 Difference]: Start difference. First operand 376 states and 397 transitions. Second operand 58 states. [2018-04-05 15:23:02,255 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-04-05 15:23:02,255 INFO L93 Difference]: Finished difference Result 788 states and 833 transitions. [2018-04-05 15:23:02,255 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 60 states. [2018-04-05 15:23:02,256 INFO L78 Accepts]: Start accepts. Automaton has 58 states. Word has length 204 [2018-04-05 15:23:02,256 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-04-05 15:23:02,258 INFO L225 Difference]: With dead ends: 788 [2018-04-05 15:23:02,258 INFO L226 Difference]: Without dead ends: 448 [2018-04-05 15:23:02,267 INFO L567 BasicCegarLoop]: 0 DeclaredPredicates, 455 GetRequests, 330 SyntacticMatches, 22 SemanticMatches, 103 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3136 ImplicationChecksByTransitivity, 15.7s TimeCoverageRelationStatistics Valid=1799, Invalid=9121, Unknown=0, NotChecked=0, Total=10920 [2018-04-05 15:23:02,267 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 448 states. [2018-04-05 15:23:02,319 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 448 to 414. [2018-04-05 15:23:02,319 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 414 states. [2018-04-05 15:23:02,320 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 414 states to 414 states and 438 transitions. [2018-04-05 15:23:02,321 INFO L78 Accepts]: Start accepts. Automaton has 414 states and 438 transitions. Word has length 204 [2018-04-05 15:23:02,326 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-04-05 15:23:02,326 INFO L459 AbstractCegarLoop]: Abstraction has 414 states and 438 transitions. [2018-04-05 15:23:02,326 INFO L460 AbstractCegarLoop]: Interpolant automaton has 58 states. [2018-04-05 15:23:02,326 INFO L276 IsEmpty]: Start isEmpty. Operand 414 states and 438 transitions. [2018-04-05 15:23:02,328 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 215 [2018-04-05 15:23:02,342 INFO L347 BasicCegarLoop]: Found error trace [2018-04-05 15:23:02,342 INFO L355 BasicCegarLoop]: trace histogram [20, 19, 19, 18, 18, 18, 18, 18, 18, 18, 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] [2018-04-05 15:23:02,342 INFO L408 AbstractCegarLoop]: === Iteration 25 === [__U_MULTI_fbubblesort_alloca_true_valid_memsafety_true_termination_i__bubbleSortErr0RequiresViolation, __U_MULTI_fbubblesort_alloca_true_valid_memsafety_true_termination_i__bubbleSortErr9RequiresViolation, __U_MULTI_fbubblesort_alloca_true_valid_memsafety_true_termination_i__bubbleSortErr2RequiresViolation, __U_MULTI_fbubblesort_alloca_true_valid_memsafety_true_termination_i__bubbleSortErr10RequiresViolation, __U_MULTI_fbubblesort_alloca_true_valid_memsafety_true_termination_i__bubbleSortErr6RequiresViolation, __U_MULTI_fbubblesort_alloca_true_valid_memsafety_true_termination_i__bubbleSortErr1RequiresViolation, __U_MULTI_fbubblesort_alloca_true_valid_memsafety_true_termination_i__bubbleSortErr7RequiresViolation, __U_MULTI_fbubblesort_alloca_true_valid_memsafety_true_termination_i__bubbleSortErr11RequiresViolation, __U_MULTI_fbubblesort_alloca_true_valid_memsafety_true_termination_i__bubbleSortErr8RequiresViolation, __U_MULTI_fbubblesort_alloca_true_valid_memsafety_true_termination_i__bubbleSortErr4RequiresViolation, __U_MULTI_fbubblesort_alloca_true_valid_memsafety_true_termination_i__bubbleSortErr5RequiresViolation, __U_MULTI_fbubblesort_alloca_true_valid_memsafety_true_termination_i__bubbleSortErr3RequiresViolation, mainErr0EnsuresViolationMEMORY_LEAK]=== [2018-04-05 15:23:02,342 INFO L82 PathProgramCache]: Analyzing trace with hash -1036071425, now seen corresponding path program 17 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 [2018-04-05 15:23:02,403 INFO L68 tionRefinementEngine]: Using refinement strategy FixedRefinementStrategy [2018-04-05 15:23:02,493 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-04-05 15:23:02,510 INFO L270 TraceCheckSpWp]: Computing forward predicates... [2018-04-05 15:23:06,847 INFO L134 CoverageAnalysis]: Checked inductivity of 1643 backedges. 465 proven. 1178 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-04-05 15:23:06,848 INFO L314 TraceCheckSpWp]: Computing backward predicates... [2018-04-05 15:23:10,004 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 13 treesize of output 11 [2018-04-05 15:23:10,004 INFO L267 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2018-04-05 15:23:10,024 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 1 xjuncts. [2018-04-05 15:23:10,025 INFO L202 ElimStorePlain]: Needed 2 recursive calls to eliminate 3 variables, input treesize:26, output treesize:13 [2018-04-05 15:23:12,174 INFO L134 CoverageAnalysis]: Checked inductivity of 1643 backedges. 390 proven. 1253 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-04-05 15:23:12,211 INFO L320 seRefinementStrategy]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2018-04-05 15:23:12,211 INFO L335 seRefinementStrategy]: Number of different interpolants: perfect sequences [] imperfect sequences [39, 39] total 58 [2018-04-05 15:23:12,212 INFO L442 AbstractCegarLoop]: Interpolant automaton has 59 states [2018-04-05 15:23:12,212 INFO L132 InterpolantAutomaton]: Constructing interpolant automaton starting with 59 interpolants. [2018-04-05 15:23:12,212 INFO L133 InterpolantAutomaton]: CoverageRelationStatistics Valid=446, Invalid=2976, Unknown=0, NotChecked=0, Total=3422 [2018-04-05 15:23:12,213 INFO L87 Difference]: Start difference. First operand 414 states and 438 transitions. Second operand 59 states. [2018-04-05 15:23:20,079 WARN L151 SmtUtils]: Spent 104ms on a formula simplification. DAG size of input: 26 DAG size of output 24 [2018-04-05 15:23:20,267 WARN L151 SmtUtils]: Spent 115ms on a formula simplification. DAG size of input: 27 DAG size of output 25 [2018-04-05 15:23:20,939 WARN L151 SmtUtils]: Spent 111ms on a formula simplification. DAG size of input: 26 DAG size of output 24 [2018-04-05 15:23:21,165 WARN L151 SmtUtils]: Spent 111ms on a formula simplification. DAG size of input: 27 DAG size of output 25 [2018-04-05 15:23:21,386 WARN L151 SmtUtils]: Spent 122ms on a formula simplification. DAG size of input: 23 DAG size of output 21 [2018-04-05 15:23:21,999 WARN L151 SmtUtils]: Spent 230ms on a formula simplification. DAG size of input: 26 DAG size of output 24 [2018-04-05 15:23:22,934 WARN L151 SmtUtils]: Spent 110ms on a formula simplification. DAG size of input: 25 DAG size of output 23 [2018-04-05 15:23:23,311 WARN L151 SmtUtils]: Spent 157ms on a formula simplification. DAG size of input: 23 DAG size of output 21 [2018-04-05 15:23:25,747 WARN L151 SmtUtils]: Spent 103ms on a formula simplification. DAG size of input: 26 DAG size of output 24 [2018-04-05 15:23:26,306 WARN L151 SmtUtils]: Spent 122ms on a formula simplification. DAG size of input: 27 DAG size of output 25 [2018-04-05 15:23:28,280 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-04-05 15:23:28,324 INFO L93 Difference]: Finished difference Result 415 states and 438 transitions. [2018-04-05 15:23:28,325 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 68 states. [2018-04-05 15:23:28,325 INFO L78 Accepts]: Start accepts. Automaton has 59 states. Word has length 214 [2018-04-05 15:23:28,326 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-04-05 15:23:28,327 INFO L225 Difference]: With dead ends: 415 [2018-04-05 15:23:28,327 INFO L226 Difference]: Without dead ends: 414 [2018-04-05 15:23:28,342 INFO L567 BasicCegarLoop]: 0 DeclaredPredicates, 485 GetRequests, 352 SyntacticMatches, 19 SemanticMatches, 114 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 4429 ImplicationChecksByTransitivity, 17.3s TimeCoverageRelationStatistics Valid=2156, Invalid=11184, Unknown=0, NotChecked=0, Total=13340 [2018-04-05 15:23:28,343 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 414 states. [2018-04-05 15:23:28,380 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 414 to 414. [2018-04-05 15:23:28,380 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 414 states. [2018-04-05 15:23:28,382 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 414 states to 414 states and 437 transitions. [2018-04-05 15:23:28,382 INFO L78 Accepts]: Start accepts. Automaton has 414 states and 437 transitions. Word has length 214 [2018-04-05 15:23:28,383 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-04-05 15:23:28,383 INFO L459 AbstractCegarLoop]: Abstraction has 414 states and 437 transitions. [2018-04-05 15:23:28,383 INFO L460 AbstractCegarLoop]: Interpolant automaton has 59 states. [2018-04-05 15:23:28,383 INFO L276 IsEmpty]: Start isEmpty. Operand 414 states and 437 transitions. [2018-04-05 15:23:28,385 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 225 [2018-04-05 15:23:28,385 INFO L347 BasicCegarLoop]: Found error trace [2018-04-05 15:23:28,385 INFO L355 BasicCegarLoop]: trace histogram [21, 20, 20, 19, 19, 19, 19, 19, 19, 19, 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] [2018-04-05 15:23:28,385 INFO L408 AbstractCegarLoop]: === Iteration 26 === [__U_MULTI_fbubblesort_alloca_true_valid_memsafety_true_termination_i__bubbleSortErr0RequiresViolation, __U_MULTI_fbubblesort_alloca_true_valid_memsafety_true_termination_i__bubbleSortErr9RequiresViolation, __U_MULTI_fbubblesort_alloca_true_valid_memsafety_true_termination_i__bubbleSortErr2RequiresViolation, __U_MULTI_fbubblesort_alloca_true_valid_memsafety_true_termination_i__bubbleSortErr10RequiresViolation, __U_MULTI_fbubblesort_alloca_true_valid_memsafety_true_termination_i__bubbleSortErr6RequiresViolation, __U_MULTI_fbubblesort_alloca_true_valid_memsafety_true_termination_i__bubbleSortErr1RequiresViolation, __U_MULTI_fbubblesort_alloca_true_valid_memsafety_true_termination_i__bubbleSortErr7RequiresViolation, __U_MULTI_fbubblesort_alloca_true_valid_memsafety_true_termination_i__bubbleSortErr11RequiresViolation, __U_MULTI_fbubblesort_alloca_true_valid_memsafety_true_termination_i__bubbleSortErr8RequiresViolation, __U_MULTI_fbubblesort_alloca_true_valid_memsafety_true_termination_i__bubbleSortErr4RequiresViolation, __U_MULTI_fbubblesort_alloca_true_valid_memsafety_true_termination_i__bubbleSortErr5RequiresViolation, __U_MULTI_fbubblesort_alloca_true_valid_memsafety_true_termination_i__bubbleSortErr3RequiresViolation, mainErr0EnsuresViolationMEMORY_LEAK]=== [2018-04-05 15:23:28,386 INFO L82 PathProgramCache]: Analyzing trace with hash 123217771, now seen corresponding path program 18 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 [2018-04-05 15:23:28,419 INFO L68 tionRefinementEngine]: Using refinement strategy FixedRefinementStrategy [2018-04-05 15:23:28,509 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-04-05 15:23:28,520 INFO L270 TraceCheckSpWp]: Computing forward predicates... [2018-04-05 15:23:32,648 INFO L134 CoverageAnalysis]: Checked inductivity of 1829 backedges. 419 proven. 1410 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-04-05 15:23:32,648 INFO L314 TraceCheckSpWp]: Computing backward predicates... [2018-04-05 15:23:39,437 INFO L134 CoverageAnalysis]: Checked inductivity of 1829 backedges. 419 proven. 1410 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-04-05 15:23:39,474 INFO L320 seRefinementStrategy]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2018-04-05 15:23:39,474 INFO L335 seRefinementStrategy]: Number of different interpolants: perfect sequences [] imperfect sequences [45, 45] total 64 [2018-04-05 15:23:39,475 INFO L442 AbstractCegarLoop]: Interpolant automaton has 64 states [2018-04-05 15:23:39,475 INFO L132 InterpolantAutomaton]: Constructing interpolant automaton starting with 64 interpolants. [2018-04-05 15:23:39,476 INFO L133 InterpolantAutomaton]: CoverageRelationStatistics Valid=526, Invalid=3506, Unknown=0, NotChecked=0, Total=4032 [2018-04-05 15:23:39,476 INFO L87 Difference]: Start difference. First operand 414 states and 437 transitions. Second operand 64 states. [2018-04-05 15:23:46,333 WARN L151 SmtUtils]: Spent 169ms on a formula simplification. DAG size of input: 8 DAG size of output 6 [2018-04-05 15:23:53,853 WARN L148 SmtUtils]: Spent 103ms on a formula simplification that was a NOOP. DAG size: 11 [2018-04-05 15:23:57,904 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-04-05 15:23:57,904 INFO L93 Difference]: Finished difference Result 864 states and 913 transitions. [2018-04-05 15:23:57,905 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 66 states. [2018-04-05 15:23:57,905 INFO L78 Accepts]: Start accepts. Automaton has 64 states. Word has length 224 [2018-04-05 15:23:57,906 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-04-05 15:23:57,908 INFO L225 Difference]: With dead ends: 864 [2018-04-05 15:23:57,909 INFO L226 Difference]: Without dead ends: 486 [2018-04-05 15:23:57,911 INFO L567 BasicCegarLoop]: 0 DeclaredPredicates, 500 GetRequests, 362 SyntacticMatches, 24 SemanticMatches, 114 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3874 ImplicationChecksByTransitivity, 21.0s TimeCoverageRelationStatistics Valid=2173, Invalid=11167, Unknown=0, NotChecked=0, Total=13340 [2018-04-05 15:23:57,911 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 486 states. [2018-04-05 15:23:57,984 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 486 to 452. [2018-04-05 15:23:57,985 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 452 states. [2018-04-05 15:23:57,986 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 452 states to 452 states and 478 transitions. [2018-04-05 15:23:57,987 INFO L78 Accepts]: Start accepts. Automaton has 452 states and 478 transitions. Word has length 224 [2018-04-05 15:23:57,989 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-04-05 15:23:57,989 INFO L459 AbstractCegarLoop]: Abstraction has 452 states and 478 transitions. [2018-04-05 15:23:57,989 INFO L460 AbstractCegarLoop]: Interpolant automaton has 64 states. [2018-04-05 15:23:57,989 INFO L276 IsEmpty]: Start isEmpty. Operand 452 states and 478 transitions. [2018-04-05 15:23:57,991 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 235 [2018-04-05 15:23:57,991 INFO L347 BasicCegarLoop]: Found error trace [2018-04-05 15:23:57,991 INFO L355 BasicCegarLoop]: trace histogram [22, 21, 21, 20, 20, 20, 20, 20, 20, 20, 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] [2018-04-05 15:23:57,991 INFO L408 AbstractCegarLoop]: === Iteration 27 === [__U_MULTI_fbubblesort_alloca_true_valid_memsafety_true_termination_i__bubbleSortErr0RequiresViolation, __U_MULTI_fbubblesort_alloca_true_valid_memsafety_true_termination_i__bubbleSortErr9RequiresViolation, __U_MULTI_fbubblesort_alloca_true_valid_memsafety_true_termination_i__bubbleSortErr2RequiresViolation, __U_MULTI_fbubblesort_alloca_true_valid_memsafety_true_termination_i__bubbleSortErr10RequiresViolation, __U_MULTI_fbubblesort_alloca_true_valid_memsafety_true_termination_i__bubbleSortErr6RequiresViolation, __U_MULTI_fbubblesort_alloca_true_valid_memsafety_true_termination_i__bubbleSortErr1RequiresViolation, __U_MULTI_fbubblesort_alloca_true_valid_memsafety_true_termination_i__bubbleSortErr7RequiresViolation, __U_MULTI_fbubblesort_alloca_true_valid_memsafety_true_termination_i__bubbleSortErr11RequiresViolation, __U_MULTI_fbubblesort_alloca_true_valid_memsafety_true_termination_i__bubbleSortErr8RequiresViolation, __U_MULTI_fbubblesort_alloca_true_valid_memsafety_true_termination_i__bubbleSortErr4RequiresViolation, __U_MULTI_fbubblesort_alloca_true_valid_memsafety_true_termination_i__bubbleSortErr5RequiresViolation, __U_MULTI_fbubblesort_alloca_true_valid_memsafety_true_termination_i__bubbleSortErr3RequiresViolation, mainErr0EnsuresViolationMEMORY_LEAK]=== [2018-04-05 15:23:57,992 INFO L82 PathProgramCache]: Analyzing trace with hash 315268951, now seen corresponding path program 19 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 [2018-04-05 15:23:58,043 INFO L68 tionRefinementEngine]: Using refinement strategy FixedRefinementStrategy [2018-04-05 15:23:58,144 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-04-05 15:23:58,158 INFO L270 TraceCheckSpWp]: Computing forward predicates... [2018-04-05 15:24:04,174 INFO L134 CoverageAnalysis]: Checked inductivity of 2025 backedges. 567 proven. 1458 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-04-05 15:24:04,175 INFO L314 TraceCheckSpWp]: Computing backward predicates... [2018-04-05 15:24:09,279 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 13 treesize of output 11 [2018-04-05 15:24:09,279 INFO L267 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2018-04-05 15:24:09,390 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 1 xjuncts. [2018-04-05 15:24:09,391 INFO L202 ElimStorePlain]: Needed 2 recursive calls to eliminate 3 variables, input treesize:26, output treesize:13 [2018-04-05 15:24:11,152 INFO L134 CoverageAnalysis]: Checked inductivity of 2025 backedges. 483 proven. 1542 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-04-05 15:24:11,188 INFO L320 seRefinementStrategy]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2018-04-05 15:24:11,189 INFO L335 seRefinementStrategy]: Number of different interpolants: perfect sequences [] imperfect sequences [43, 43] total 64 [2018-04-05 15:24:11,189 INFO L442 AbstractCegarLoop]: Interpolant automaton has 65 states [2018-04-05 15:24:11,190 INFO L132 InterpolantAutomaton]: Constructing interpolant automaton starting with 65 interpolants. [2018-04-05 15:24:11,190 INFO L133 InterpolantAutomaton]: CoverageRelationStatistics Valid=534, Invalid=3626, Unknown=0, NotChecked=0, Total=4160 [2018-04-05 15:24:11,190 INFO L87 Difference]: Start difference. First operand 452 states and 478 transitions. Second operand 65 states. [2018-04-05 15:24:22,633 WARN L151 SmtUtils]: Spent 112ms on a formula simplification. DAG size of input: 26 DAG size of output 24 [2018-04-05 15:24:22,828 WARN L151 SmtUtils]: Spent 114ms on a formula simplification. DAG size of input: 27 DAG size of output 25 [2018-04-05 15:24:23,566 WARN L151 SmtUtils]: Spent 149ms on a formula simplification. DAG size of input: 26 DAG size of output 24 [2018-04-05 15:24:23,790 WARN L151 SmtUtils]: Spent 114ms on a formula simplification. DAG size of input: 27 DAG size of output 25 [2018-04-05 15:24:24,598 WARN L151 SmtUtils]: Spent 115ms on a formula simplification. DAG size of input: 26 DAG size of output 24 [2018-04-05 15:24:24,817 WARN L151 SmtUtils]: Spent 105ms on a formula simplification. DAG size of input: 26 DAG size of output 24 [2018-04-05 15:24:25,582 WARN L151 SmtUtils]: Spent 109ms on a formula simplification. DAG size of input: 25 DAG size of output 23 [2018-04-05 15:24:25,828 WARN L151 SmtUtils]: Spent 104ms on a formula simplification. DAG size of input: 26 DAG size of output 24 [2018-04-05 15:24:26,663 WARN L151 SmtUtils]: Spent 105ms on a formula simplification. DAG size of input: 26 DAG size of output 24 [2018-04-05 15:24:26,937 WARN L151 SmtUtils]: Spent 100ms on a formula simplification. DAG size of input: 27 DAG size of output 25 [2018-04-05 15:24:27,745 WARN L151 SmtUtils]: Spent 108ms on a formula simplification. DAG size of input: 26 DAG size of output 24 [2018-04-05 15:24:28,089 WARN L151 SmtUtils]: Spent 109ms on a formula simplification. DAG size of input: 27 DAG size of output 25 [2018-04-05 15:24:28,878 WARN L151 SmtUtils]: Spent 120ms on a formula simplification. DAG size of input: 26 DAG size of output 24 [2018-04-05 15:24:29,171 WARN L151 SmtUtils]: Spent 105ms on a formula simplification. DAG size of input: 27 DAG size of output 25 [2018-04-05 15:24:29,975 WARN L151 SmtUtils]: Spent 105ms on a formula simplification. DAG size of input: 26 DAG size of output 24 [2018-04-05 15:24:31,538 WARN L151 SmtUtils]: Spent 130ms on a formula simplification. DAG size of input: 26 DAG size of output 24 [2018-04-05 15:24:32,974 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-04-05 15:24:33,015 INFO L93 Difference]: Finished difference Result 453 states and 478 transitions. [2018-04-05 15:24:33,016 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 75 states. [2018-04-05 15:24:33,016 INFO L78 Accepts]: Start accepts. Automaton has 65 states. Word has length 234 [2018-04-05 15:24:33,017 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-04-05 15:24:33,042 INFO L225 Difference]: With dead ends: 453 [2018-04-05 15:24:33,042 INFO L226 Difference]: Without dead ends: 452 [2018-04-05 15:24:33,043 INFO L567 BasicCegarLoop]: 0 DeclaredPredicates, 531 GetRequests, 384 SyntacticMatches, 21 SemanticMatches, 126 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 5496 ImplicationChecksByTransitivity, 21.7s TimeCoverageRelationStatistics Valid=2591, Invalid=13665, Unknown=0, NotChecked=0, Total=16256 [2018-04-05 15:24:33,044 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 452 states. [2018-04-05 15:24:33,163 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 452 to 452. [2018-04-05 15:24:33,164 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 452 states. [2018-04-05 15:24:33,165 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 452 states to 452 states and 477 transitions. [2018-04-05 15:24:33,166 INFO L78 Accepts]: Start accepts. Automaton has 452 states and 477 transitions. Word has length 234 [2018-04-05 15:24:33,166 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-04-05 15:24:33,166 INFO L459 AbstractCegarLoop]: Abstraction has 452 states and 477 transitions. [2018-04-05 15:24:33,166 INFO L460 AbstractCegarLoop]: Interpolant automaton has 65 states. [2018-04-05 15:24:33,166 INFO L276 IsEmpty]: Start isEmpty. Operand 452 states and 477 transitions. [2018-04-05 15:24:33,177 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 245 [2018-04-05 15:24:33,177 INFO L347 BasicCegarLoop]: Found error trace [2018-04-05 15:24:33,178 INFO L355 BasicCegarLoop]: trace histogram [23, 22, 22, 21, 21, 21, 21, 21, 21, 21, 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] [2018-04-05 15:24:33,178 INFO L408 AbstractCegarLoop]: === Iteration 28 === [__U_MULTI_fbubblesort_alloca_true_valid_memsafety_true_termination_i__bubbleSortErr0RequiresViolation, __U_MULTI_fbubblesort_alloca_true_valid_memsafety_true_termination_i__bubbleSortErr9RequiresViolation, __U_MULTI_fbubblesort_alloca_true_valid_memsafety_true_termination_i__bubbleSortErr2RequiresViolation, __U_MULTI_fbubblesort_alloca_true_valid_memsafety_true_termination_i__bubbleSortErr10RequiresViolation, __U_MULTI_fbubblesort_alloca_true_valid_memsafety_true_termination_i__bubbleSortErr6RequiresViolation, __U_MULTI_fbubblesort_alloca_true_valid_memsafety_true_termination_i__bubbleSortErr1RequiresViolation, __U_MULTI_fbubblesort_alloca_true_valid_memsafety_true_termination_i__bubbleSortErr7RequiresViolation, __U_MULTI_fbubblesort_alloca_true_valid_memsafety_true_termination_i__bubbleSortErr11RequiresViolation, __U_MULTI_fbubblesort_alloca_true_valid_memsafety_true_termination_i__bubbleSortErr8RequiresViolation, __U_MULTI_fbubblesort_alloca_true_valid_memsafety_true_termination_i__bubbleSortErr4RequiresViolation, __U_MULTI_fbubblesort_alloca_true_valid_memsafety_true_termination_i__bubbleSortErr5RequiresViolation, __U_MULTI_fbubblesort_alloca_true_valid_memsafety_true_termination_i__bubbleSortErr3RequiresViolation, mainErr0EnsuresViolationMEMORY_LEAK]=== [2018-04-05 15:24:33,178 INFO L82 PathProgramCache]: Analyzing trace with hash 1253059267, now seen corresponding path program 20 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 [2018-04-05 15:24:33,202 INFO L68 tionRefinementEngine]: Using refinement strategy FixedRefinementStrategy [2018-04-05 15:24:33,326 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-04-05 15:24:33,338 INFO L270 TraceCheckSpWp]: Computing forward predicates... [2018-04-05 15:24:39,386 INFO L134 CoverageAnalysis]: Checked inductivity of 2231 backedges. 515 proven. 1716 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-04-05 15:24:39,386 INFO L314 TraceCheckSpWp]: Computing backward predicates... [2018-04-05 15:24:46,493 INFO L134 CoverageAnalysis]: Checked inductivity of 2231 backedges. 515 proven. 1716 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-04-05 15:24:46,530 INFO L320 seRefinementStrategy]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2018-04-05 15:24:46,531 INFO L335 seRefinementStrategy]: Number of different interpolants: perfect sequences [] imperfect sequences [49, 49] total 70 [2018-04-05 15:24:46,531 INFO L442 AbstractCegarLoop]: Interpolant automaton has 70 states [2018-04-05 15:24:46,532 INFO L132 InterpolantAutomaton]: Constructing interpolant automaton starting with 70 interpolants. [2018-04-05 15:24:46,532 INFO L133 InterpolantAutomaton]: CoverageRelationStatistics Valid=622, Invalid=4208, Unknown=0, NotChecked=0, Total=4830 [2018-04-05 15:24:46,532 INFO L87 Difference]: Start difference. First operand 452 states and 477 transitions. Second operand 70 states.