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 0.1.23-8168ed2-m [2018-04-11 20:03:34,433 INFO L170 SettingsManager]: Resetting all preferences to default values... [2018-04-11 20:03:34,435 INFO L174 SettingsManager]: Resetting UltimateCore preferences to default values [2018-04-11 20:03:34,448 INFO L177 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... 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[2018-04-11 20:03:34,475 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 [2018-04-11 20:03:34,499 INFO L110 SettingsManager]: Loading preferences was successful [2018-04-11 20:03:34,499 INFO L112 SettingsManager]: Preferences different from defaults after loading the file: [2018-04-11 20:03:34,499 INFO L131 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2018-04-11 20:03:34,499 INFO L133 SettingsManager]: * ultimate.logging.details=de.uni_freiburg.informatik.ultimate.plugins.icfgtransformation=DEBUG; [2018-04-11 20:03:34,500 INFO L131 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2018-04-11 20:03:34,500 INFO L133 SettingsManager]: * to procedures, called more than once=true [2018-04-11 20:03:34,500 INFO L131 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2018-04-11 20:03:34,500 INFO L133 SettingsManager]: * Abstract domain for RCFG-of-the-future=VPDomain [2018-04-11 20:03:34,500 INFO L133 SettingsManager]: * Parallel states before merging=1 [2018-04-11 20:03:34,501 INFO L133 SettingsManager]: * Use the RCFG-of-the-future interface=true [2018-04-11 20:03:34,501 INFO L131 SettingsManager]: Preferences of LTL2Aut differ from their defaults: [2018-04-11 20:03:34,501 INFO L133 SettingsManager]: * Property to check=[] a a: x > 42 [2018-04-11 20:03:34,501 INFO L131 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2018-04-11 20:03:34,501 INFO L133 SettingsManager]: * sizeof long=4 [2018-04-11 20:03:34,501 INFO L133 SettingsManager]: * Check unreachability of error function in SV-COMP mode=false [2018-04-11 20:03:34,502 INFO L133 SettingsManager]: * Overapproximate operations on floating types=true [2018-04-11 20:03:34,502 INFO L133 SettingsManager]: * sizeof POINTER=4 [2018-04-11 20:03:34,502 INFO L133 SettingsManager]: * Check division by zero=IGNORE [2018-04-11 20:03:34,502 INFO L133 SettingsManager]: * Check for the main procedure if all allocated memory was freed=true [2018-04-11 20:03:34,502 INFO L133 SettingsManager]: * SV-COMP memtrack compatibility mode=true [2018-04-11 20:03:34,502 INFO L133 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2018-04-11 20:03:34,503 INFO L133 SettingsManager]: * sizeof long double=12 [2018-04-11 20:03:34,503 INFO L131 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2018-04-11 20:03:34,503 INFO L133 SettingsManager]: * Size of a code block=SingleStatement [2018-04-11 20:03:34,503 INFO L133 SettingsManager]: * Add additional assume for each assert=false [2018-04-11 20:03:34,503 INFO L133 SettingsManager]: * SMT solver=External_DefaultMode [2018-04-11 20:03:34,504 INFO L133 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2018-04-11 20:03:34,504 INFO L131 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2018-04-11 20:03:34,504 INFO L133 SettingsManager]: * Interpolant automaton=TWOTRACK [2018-04-11 20:03:34,504 INFO L133 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2018-04-11 20:03:34,504 INFO L133 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2018-04-11 20:03:34,504 INFO L133 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2018-04-11 20:03:34,504 INFO L133 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2018-04-11 20:03:34,505 INFO L133 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2018-04-11 20:03:34,505 INFO L131 SettingsManager]: Preferences of IcfgTransformer differ from their defaults: [2018-04-11 20:03:34,506 INFO L133 SettingsManager]: * TransformationType=HEAP_SEPARATOR [2018-04-11 20:03:34,506 INFO L131 SettingsManager]: Preferences of Boogie Printer differ from their defaults: [2018-04-11 20:03:34,506 INFO L133 SettingsManager]: * Dump path:=C:\Users\alex\AppData\Local\Temp\ [2018-04-11 20:03:34,536 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2018-04-11 20:03:34,546 INFO L266 ainManager$Toolchain]: [Toolchain 1]: Parser(s) successfully (re)initialized [2018-04-11 20:03:34,549 INFO L222 ainManager$Toolchain]: [Toolchain 1]: Toolchain data selected. [2018-04-11 20:03:34,550 INFO L271 PluginConnector]: Initializing CDTParser... [2018-04-11 20:03:34,551 INFO L276 PluginConnector]: CDTParser initialized [2018-04-11 20:03:34,552 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 [2018-04-11 20:03:34,898 INFO L225 CDTParser]: Created temporary CDT project at /storage/ultimate/releaseScripts/default/UAutomizer-linux/data/FLAG0f04ee8d8 [2018-04-11 20:03:35,043 INFO L287 CDTParser]: IsIndexed: true [2018-04-11 20:03:35,043 INFO L288 CDTParser]: Found 1 translation units. [2018-04-11 20:03:35,043 INFO L168 CDTParser]: Scanning bubblesort-alloca_true-valid-memsafety_true-termination.i [2018-04-11 20:03:35,054 INFO L210 ultiparseSymbolTable]: Include resolver: [2018-04-11 20:03:35,054 INFO L215 ultiparseSymbolTable]: [2018-04-11 20:03:35,054 INFO L218 ultiparseSymbolTable]: Function table: [2018-04-11 20:03:35,054 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 [2018-04-11 20:03:35,054 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 [2018-04-11 20:03:35,055 INFO L221 ultiparseSymbolTable]: Function definition of null ('main') in bubblesort-alloca_true-valid-memsafety_true-termination.i [2018-04-11 20:03:35,055 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 [2018-04-11 20:03:35,055 INFO L227 ultiparseSymbolTable]: Global variable table: [2018-04-11 20:03:35,055 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 [2018-04-11 20:03:35,055 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 [2018-04-11 20:03:35,055 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 [2018-04-11 20:03:35,055 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 [2018-04-11 20:03:35,055 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 [2018-04-11 20:03:35,056 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 [2018-04-11 20:03:35,056 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 [2018-04-11 20:03:35,056 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 [2018-04-11 20:03:35,056 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 [2018-04-11 20:03:35,056 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 [2018-04-11 20:03:35,056 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 [2018-04-11 20:03:35,056 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 [2018-04-11 20:03:35,056 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 [2018-04-11 20:03:35,057 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 [2018-04-11 20:03:35,057 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 [2018-04-11 20:03:35,057 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 [2018-04-11 20:03:35,057 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 [2018-04-11 20:03:35,057 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 [2018-04-11 20:03:35,057 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 [2018-04-11 20:03:35,057 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 [2018-04-11 20:03:35,057 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 [2018-04-11 20:03:35,057 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 [2018-04-11 20:03:35,058 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 [2018-04-11 20:03:35,058 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 [2018-04-11 20:03:35,058 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 [2018-04-11 20:03:35,058 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 [2018-04-11 20:03:35,058 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 [2018-04-11 20:03:35,058 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 [2018-04-11 20:03:35,058 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 [2018-04-11 20:03:35,058 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 [2018-04-11 20:03:35,058 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 [2018-04-11 20:03:35,058 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 [2018-04-11 20:03:35,058 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 [2018-04-11 20:03:35,059 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 [2018-04-11 20:03:35,059 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 [2018-04-11 20:03:35,059 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 [2018-04-11 20:03:35,059 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 [2018-04-11 20:03:35,059 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 [2018-04-11 20:03:35,059 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 [2018-04-11 20:03:35,059 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 [2018-04-11 20:03:35,059 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 [2018-04-11 20:03:35,059 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 [2018-04-11 20:03:35,059 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 [2018-04-11 20:03:35,059 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 [2018-04-11 20:03:35,059 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 [2018-04-11 20:03:35,059 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 [2018-04-11 20:03:35,060 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 [2018-04-11 20:03:35,060 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 [2018-04-11 20:03:35,060 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 [2018-04-11 20:03:35,060 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 [2018-04-11 20:03:35,060 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 [2018-04-11 20:03:35,060 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 [2018-04-11 20:03:35,060 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 [2018-04-11 20:03:35,060 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 [2018-04-11 20:03:35,060 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 [2018-04-11 20:03:35,060 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 [2018-04-11 20:03:35,060 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 [2018-04-11 20:03:35,061 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 [2018-04-11 20:03:35,061 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 [2018-04-11 20:03:35,061 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 [2018-04-11 20:03:35,061 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 [2018-04-11 20:03:35,061 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 [2018-04-11 20:03:35,061 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 [2018-04-11 20:03:35,061 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 [2018-04-11 20:03:35,061 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 [2018-04-11 20:03:35,061 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 [2018-04-11 20:03:35,062 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 [2018-04-11 20:03:35,062 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 [2018-04-11 20:03:35,062 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 [2018-04-11 20:03:35,062 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 [2018-04-11 20:03:35,062 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 [2018-04-11 20:03:35,062 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 [2018-04-11 20:03:35,062 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 [2018-04-11 20:03:35,062 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 [2018-04-11 20:03:35,062 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 [2018-04-11 20:03:35,063 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 [2018-04-11 20:03:35,063 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 [2018-04-11 20:03:35,063 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 [2018-04-11 20:03:35,063 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 [2018-04-11 20:03:35,063 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 [2018-04-11 20:03:35,063 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 [2018-04-11 20:03:35,063 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 [2018-04-11 20:03:35,063 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 [2018-04-11 20:03:35,063 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 [2018-04-11 20:03:35,064 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 [2018-04-11 20:03:35,064 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 [2018-04-11 20:03:35,064 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 [2018-04-11 20:03:35,064 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 [2018-04-11 20:03:35,064 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 [2018-04-11 20:03:35,064 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 [2018-04-11 20:03:35,064 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 [2018-04-11 20:03:35,064 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 [2018-04-11 20:03:35,064 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 [2018-04-11 20:03:35,065 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 [2018-04-11 20:03:35,065 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 [2018-04-11 20:03:35,065 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 [2018-04-11 20:03:35,065 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 [2018-04-11 20:03:35,065 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 [2018-04-11 20:03:35,065 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 [2018-04-11 20:03:35,065 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 [2018-04-11 20:03:35,065 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 [2018-04-11 20:03:35,066 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 [2018-04-11 20:03:35,066 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 [2018-04-11 20:03:35,066 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 [2018-04-11 20:03:35,066 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 [2018-04-11 20:03:35,066 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 [2018-04-11 20:03:35,066 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 [2018-04-11 20:03:35,066 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 [2018-04-11 20:03:35,066 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 [2018-04-11 20:03:35,067 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 [2018-04-11 20:03:35,067 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 [2018-04-11 20:03:35,067 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 [2018-04-11 20:03:35,067 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 [2018-04-11 20:03:35,067 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 [2018-04-11 20:03:35,067 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 [2018-04-11 20:03:35,067 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 [2018-04-11 20:03:35,067 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 [2018-04-11 20:03:35,067 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 [2018-04-11 20:03:35,068 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 [2018-04-11 20:03:35,068 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 [2018-04-11 20:03:35,086 INFO L330 CDTParser]: Deleted temporary CDT project at /storage/ultimate/releaseScripts/default/UAutomizer-linux/data/FLAG0f04ee8d8 [2018-04-11 20:03:35,089 INFO L304 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2018-04-11 20:03:35,091 INFO L131 ToolchainWalker]: Walking toolchain with 4 elements. [2018-04-11 20:03:35,092 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2018-04-11 20:03:35,092 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2018-04-11 20:03:35,097 INFO L276 PluginConnector]: CACSL2BoogieTranslator initialized [2018-04-11 20:03:35,098 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 11.04 08:03:35" (1/1) ... [2018-04-11 20:03:35,100 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@931c9ce and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.04 08:03:35, skipping insertion in model container [2018-04-11 20:03:35,100 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 11.04 08:03:35" (1/1) ... [2018-04-11 20:03:35,113 INFO L167 Dispatcher]: Using SV-COMP mode [2018-04-11 20:03:35,142 INFO L167 Dispatcher]: Using SV-COMP mode [2018-04-11 20:03:35,306 INFO L175 PostProcessor]: Settings: Checked method=main [2018-04-11 20:03:35,352 INFO L175 PostProcessor]: Settings: Checked method=main [2018-04-11 20:03:35,361 INFO L100 SccComputation]: Graph consists of 0 InCaSumBalls and 112 non ball SCCs. Number of states in SCCs 112. [2018-04-11 20:03:35,408 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.04 08:03:35 WrapperNode [2018-04-11 20:03:35,408 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2018-04-11 20:03:35,409 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2018-04-11 20:03:35,409 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2018-04-11 20:03:35,409 INFO L276 PluginConnector]: Boogie Preprocessor initialized [2018-04-11 20:03:35,424 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.04 08:03:35" (1/1) ... [2018-04-11 20:03:35,424 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.04 08:03:35" (1/1) ... [2018-04-11 20:03:35,440 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.04 08:03:35" (1/1) ... [2018-04-11 20:03:35,440 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.04 08:03:35" (1/1) ... [2018-04-11 20:03:35,451 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.04 08:03:35" (1/1) ... [2018-04-11 20:03:35,456 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.04 08:03:35" (1/1) ... [2018-04-11 20:03:35,460 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.04 08:03:35" (1/1) ... [2018-04-11 20:03:35,464 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2018-04-11 20:03:35,465 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2018-04-11 20:03:35,465 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2018-04-11 20:03:35,465 INFO L276 PluginConnector]: RCFGBuilder initialized [2018-04-11 20:03:35,466 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.04 08:03:35" (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 [2018-04-11 20:03:35,589 INFO L136 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2018-04-11 20:03:35,590 INFO L136 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2018-04-11 20:03:35,590 INFO L136 BoogieDeclarations]: Found implementation of procedure __U_MULTI_fbubblesort_alloca_true_valid_memsafety_true_termination_i____bswap_32 [2018-04-11 20:03:35,590 INFO L136 BoogieDeclarations]: Found implementation of procedure __U_MULTI_fbubblesort_alloca_true_valid_memsafety_true_termination_i____bswap_64 [2018-04-11 20:03:35,590 INFO L136 BoogieDeclarations]: Found implementation of procedure __U_MULTI_fbubblesort_alloca_true_valid_memsafety_true_termination_i__bubbleSort [2018-04-11 20:03:35,590 INFO L136 BoogieDeclarations]: Found implementation of procedure main [2018-04-11 20:03:35,590 INFO L128 BoogieDeclarations]: Found specification of procedure __U_MULTI_fbubblesort_alloca_true_valid_memsafety_true_termination_i____bswap_32 [2018-04-11 20:03:35,590 INFO L128 BoogieDeclarations]: Found specification of procedure __U_MULTI_fbubblesort_alloca_true_valid_memsafety_true_termination_i____bswap_64 [2018-04-11 20:03:35,590 INFO L128 BoogieDeclarations]: Found specification of procedure __ctype_get_mb_cur_max [2018-04-11 20:03:35,590 INFO L128 BoogieDeclarations]: Found specification of procedure atof [2018-04-11 20:03:35,591 INFO L128 BoogieDeclarations]: Found specification of procedure atoi [2018-04-11 20:03:35,591 INFO L128 BoogieDeclarations]: Found specification of procedure atol [2018-04-11 20:03:35,591 INFO L128 BoogieDeclarations]: Found specification of procedure atoll [2018-04-11 20:03:35,591 INFO L128 BoogieDeclarations]: Found specification of procedure strtod [2018-04-11 20:03:35,591 INFO L128 BoogieDeclarations]: Found specification of procedure strtof [2018-04-11 20:03:35,591 INFO L128 BoogieDeclarations]: Found specification of procedure strtold [2018-04-11 20:03:35,591 INFO L128 BoogieDeclarations]: Found specification of procedure strtol [2018-04-11 20:03:35,591 INFO L128 BoogieDeclarations]: Found specification of procedure strtoul [2018-04-11 20:03:35,591 INFO L128 BoogieDeclarations]: Found specification of procedure strtoq [2018-04-11 20:03:35,591 INFO L128 BoogieDeclarations]: Found specification of procedure strtouq [2018-04-11 20:03:35,591 INFO L128 BoogieDeclarations]: Found specification of procedure strtoll [2018-04-11 20:03:35,591 INFO L128 BoogieDeclarations]: Found specification of procedure strtoull [2018-04-11 20:03:35,592 INFO L128 BoogieDeclarations]: Found specification of procedure l64a [2018-04-11 20:03:35,592 INFO L128 BoogieDeclarations]: Found specification of procedure a64l [2018-04-11 20:03:35,592 INFO L128 BoogieDeclarations]: Found specification of procedure select [2018-04-11 20:03:35,592 INFO L128 BoogieDeclarations]: Found specification of procedure pselect [2018-04-11 20:03:35,592 INFO L128 BoogieDeclarations]: Found specification of procedure gnu_dev_major [2018-04-11 20:03:35,592 INFO L128 BoogieDeclarations]: Found specification of procedure gnu_dev_minor [2018-04-11 20:03:35,592 INFO L128 BoogieDeclarations]: Found specification of procedure gnu_dev_makedev [2018-04-11 20:03:35,592 INFO L128 BoogieDeclarations]: Found specification of procedure random [2018-04-11 20:03:35,592 INFO L128 BoogieDeclarations]: Found specification of procedure srandom [2018-04-11 20:03:35,592 INFO L128 BoogieDeclarations]: Found specification of procedure initstate [2018-04-11 20:03:35,593 INFO L128 BoogieDeclarations]: Found specification of procedure setstate [2018-04-11 20:03:35,593 INFO L128 BoogieDeclarations]: Found specification of procedure random_r [2018-04-11 20:03:35,593 INFO L128 BoogieDeclarations]: Found specification of procedure srandom_r [2018-04-11 20:03:35,593 INFO L128 BoogieDeclarations]: Found specification of procedure initstate_r [2018-04-11 20:03:35,593 INFO L128 BoogieDeclarations]: Found specification of procedure setstate_r [2018-04-11 20:03:35,593 INFO L128 BoogieDeclarations]: Found specification of procedure rand [2018-04-11 20:03:35,593 INFO L128 BoogieDeclarations]: Found specification of procedure srand [2018-04-11 20:03:35,594 INFO L128 BoogieDeclarations]: Found specification of procedure rand_r [2018-04-11 20:03:35,594 INFO L128 BoogieDeclarations]: Found specification of procedure drand48 [2018-04-11 20:03:35,594 INFO L128 BoogieDeclarations]: Found specification of procedure erand48 [2018-04-11 20:03:35,594 INFO L128 BoogieDeclarations]: Found specification of procedure lrand48 [2018-04-11 20:03:35,594 INFO L128 BoogieDeclarations]: Found specification of procedure nrand48 [2018-04-11 20:03:35,594 INFO L128 BoogieDeclarations]: Found specification of procedure mrand48 [2018-04-11 20:03:35,594 INFO L128 BoogieDeclarations]: Found specification of procedure jrand48 [2018-04-11 20:03:35,595 INFO L128 BoogieDeclarations]: Found specification of procedure srand48 [2018-04-11 20:03:35,595 INFO L128 BoogieDeclarations]: Found specification of procedure seed48 [2018-04-11 20:03:35,595 INFO L128 BoogieDeclarations]: Found specification of procedure lcong48 [2018-04-11 20:03:35,595 INFO L128 BoogieDeclarations]: Found specification of procedure drand48_r [2018-04-11 20:03:35,595 INFO L128 BoogieDeclarations]: Found specification of procedure erand48_r [2018-04-11 20:03:35,595 INFO L128 BoogieDeclarations]: Found specification of procedure lrand48_r [2018-04-11 20:03:35,595 INFO L128 BoogieDeclarations]: Found specification of procedure nrand48_r [2018-04-11 20:03:35,596 INFO L128 BoogieDeclarations]: Found specification of procedure mrand48_r [2018-04-11 20:03:35,596 INFO L128 BoogieDeclarations]: Found specification of procedure jrand48_r [2018-04-11 20:03:35,596 INFO L128 BoogieDeclarations]: Found specification of procedure srand48_r [2018-04-11 20:03:35,596 INFO L128 BoogieDeclarations]: Found specification of procedure seed48_r [2018-04-11 20:03:35,596 INFO L128 BoogieDeclarations]: Found specification of procedure lcong48_r [2018-04-11 20:03:35,596 INFO L128 BoogieDeclarations]: Found specification of procedure malloc [2018-04-11 20:03:35,596 INFO L128 BoogieDeclarations]: Found specification of procedure calloc [2018-04-11 20:03:35,596 INFO L128 BoogieDeclarations]: Found specification of procedure realloc [2018-04-11 20:03:35,597 INFO L128 BoogieDeclarations]: Found specification of procedure free [2018-04-11 20:03:35,597 INFO L128 BoogieDeclarations]: Found specification of procedure cfree [2018-04-11 20:03:35,597 INFO L128 BoogieDeclarations]: Found specification of procedure alloca [2018-04-11 20:03:35,597 INFO L128 BoogieDeclarations]: Found specification of procedure valloc [2018-04-11 20:03:35,597 INFO L128 BoogieDeclarations]: Found specification of procedure posix_memalign [2018-04-11 20:03:35,597 INFO L128 BoogieDeclarations]: Found specification of procedure abort [2018-04-11 20:03:35,597 INFO L128 BoogieDeclarations]: Found specification of procedure atexit [2018-04-11 20:03:35,598 INFO L128 BoogieDeclarations]: Found specification of procedure on_exit [2018-04-11 20:03:35,598 INFO L128 BoogieDeclarations]: Found specification of procedure exit [2018-04-11 20:03:35,598 INFO L128 BoogieDeclarations]: Found specification of procedure _Exit [2018-04-11 20:03:35,598 INFO L128 BoogieDeclarations]: Found specification of procedure getenv [2018-04-11 20:03:35,598 INFO L128 BoogieDeclarations]: Found specification of procedure putenv [2018-04-11 20:03:35,598 INFO L128 BoogieDeclarations]: Found specification of procedure setenv [2018-04-11 20:03:35,598 INFO L128 BoogieDeclarations]: Found specification of procedure unsetenv [2018-04-11 20:03:35,598 INFO L128 BoogieDeclarations]: Found specification of procedure clearenv [2018-04-11 20:03:35,599 INFO L128 BoogieDeclarations]: Found specification of procedure mktemp [2018-04-11 20:03:35,599 INFO L128 BoogieDeclarations]: Found specification of procedure mkstemp [2018-04-11 20:03:35,599 INFO L128 BoogieDeclarations]: Found specification of procedure mkstemps [2018-04-11 20:03:35,599 INFO L128 BoogieDeclarations]: Found specification of procedure mkdtemp [2018-04-11 20:03:35,599 INFO L128 BoogieDeclarations]: Found specification of procedure system [2018-04-11 20:03:35,599 INFO L128 BoogieDeclarations]: Found specification of procedure realpath [2018-04-11 20:03:35,599 INFO L128 BoogieDeclarations]: Found specification of procedure bsearch [2018-04-11 20:03:35,599 INFO L128 BoogieDeclarations]: Found specification of procedure qsort [2018-04-11 20:03:35,600 INFO L128 BoogieDeclarations]: Found specification of procedure abs [2018-04-11 20:03:35,600 INFO L128 BoogieDeclarations]: Found specification of procedure labs [2018-04-11 20:03:35,600 INFO L128 BoogieDeclarations]: Found specification of procedure llabs [2018-04-11 20:03:35,600 INFO L128 BoogieDeclarations]: Found specification of procedure div [2018-04-11 20:03:35,600 INFO L128 BoogieDeclarations]: Found specification of procedure ldiv [2018-04-11 20:03:35,600 INFO L128 BoogieDeclarations]: Found specification of procedure lldiv [2018-04-11 20:03:35,600 INFO L128 BoogieDeclarations]: Found specification of procedure ecvt [2018-04-11 20:03:35,600 INFO L128 BoogieDeclarations]: Found specification of procedure fcvt [2018-04-11 20:03:35,601 INFO L128 BoogieDeclarations]: Found specification of procedure gcvt [2018-04-11 20:03:35,601 INFO L128 BoogieDeclarations]: Found specification of procedure qecvt [2018-04-11 20:03:35,601 INFO L128 BoogieDeclarations]: Found specification of procedure qfcvt [2018-04-11 20:03:35,601 INFO L128 BoogieDeclarations]: Found specification of procedure qgcvt [2018-04-11 20:03:35,601 INFO L128 BoogieDeclarations]: Found specification of procedure ecvt_r [2018-04-11 20:03:35,601 INFO L128 BoogieDeclarations]: Found specification of procedure fcvt_r [2018-04-11 20:03:35,601 INFO L128 BoogieDeclarations]: Found specification of procedure qecvt_r [2018-04-11 20:03:35,601 INFO L128 BoogieDeclarations]: Found specification of procedure qfcvt_r [2018-04-11 20:03:35,602 INFO L128 BoogieDeclarations]: Found specification of procedure mblen [2018-04-11 20:03:35,602 INFO L128 BoogieDeclarations]: Found specification of procedure mbtowc [2018-04-11 20:03:35,602 INFO L128 BoogieDeclarations]: Found specification of procedure wctomb [2018-04-11 20:03:35,602 INFO L128 BoogieDeclarations]: Found specification of procedure mbstowcs [2018-04-11 20:03:35,602 INFO L128 BoogieDeclarations]: Found specification of procedure wcstombs [2018-04-11 20:03:35,602 INFO L128 BoogieDeclarations]: Found specification of procedure rpmatch [2018-04-11 20:03:35,602 INFO L128 BoogieDeclarations]: Found specification of procedure getsubopt [2018-04-11 20:03:35,603 INFO L128 BoogieDeclarations]: Found specification of procedure getloadavg [2018-04-11 20:03:35,603 INFO L128 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_int [2018-04-11 20:03:35,603 INFO L128 BoogieDeclarations]: Found specification of procedure __U_MULTI_fbubblesort_alloca_true_valid_memsafety_true_termination_i__bubbleSort [2018-04-11 20:03:35,603 INFO L128 BoogieDeclarations]: Found specification of procedure read~int [2018-04-11 20:03:35,603 INFO L128 BoogieDeclarations]: Found specification of procedure write~int [2018-04-11 20:03:35,603 INFO L128 BoogieDeclarations]: Found specification of procedure main [2018-04-11 20:03:35,603 INFO L128 BoogieDeclarations]: Found specification of procedure #Ultimate.alloc [2018-04-11 20:03:35,603 INFO L128 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2018-04-11 20:03:35,604 INFO L128 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2018-04-11 20:03:35,604 INFO L128 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2018-04-11 20:03:35,604 INFO L128 BoogieDeclarations]: Found specification of procedure write~unchecked~int [2018-04-11 20:03:35,963 INFO L259 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2018-04-11 20:03:35,964 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 11.04 08:03:35 BoogieIcfgContainer [2018-04-11 20:03:35,964 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2018-04-11 20:03:35,965 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2018-04-11 20:03:35,965 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2018-04-11 20:03:35,967 INFO L276 PluginConnector]: TraceAbstraction initialized [2018-04-11 20:03:35,967 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 11.04 08:03:35" (1/3) ... [2018-04-11 20:03:35,968 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@2786373a and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 11.04 08:03:35, skipping insertion in model container [2018-04-11 20:03:35,968 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.04 08:03:35" (2/3) ... [2018-04-11 20:03:35,968 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@2786373a and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 11.04 08:03:35, skipping insertion in model container [2018-04-11 20:03:35,968 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 11.04 08:03:35" (3/3) ... [2018-04-11 20:03:35,969 INFO L107 eAbstractionObserver]: Analyzing ICFG bubblesort-alloca_true-valid-memsafety_true-termination.i [2018-04-11 20:03:35,975 INFO L131 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2018-04-11 20:03:35,981 INFO L143 ceAbstractionStarter]: Appying trace abstraction to program that has 13 error locations. [2018-04-11 20:03:36,021 INFO L128 ementStrategyFactory]: Using default assertion order modulation [2018-04-11 20:03:36,021 INFO L369 AbstractCegarLoop]: Interprodecural is true [2018-04-11 20:03:36,021 INFO L370 AbstractCegarLoop]: Hoare is true [2018-04-11 20:03:36,021 INFO L371 AbstractCegarLoop]: Compute interpolants for FPandBP [2018-04-11 20:03:36,021 INFO L372 AbstractCegarLoop]: Backedges is TWOTRACK [2018-04-11 20:03:36,021 INFO L373 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2018-04-11 20:03:36,022 INFO L374 AbstractCegarLoop]: Difference is false [2018-04-11 20:03:36,022 INFO L375 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2018-04-11 20:03:36,022 INFO L380 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2018-04-11 20:03:36,022 INFO L87 2NestedWordAutomaton]: Mode: main mode - execution starts in main procedure [2018-04-11 20:03:36,038 INFO L276 IsEmpty]: Start isEmpty. Operand 67 states. [2018-04-11 20:03:36,042 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 26 [2018-04-11 20:03:36,042 INFO L347 BasicCegarLoop]: Found error trace [2018-04-11 20:03:36,043 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] [2018-04-11 20:03:36,043 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]=== [2018-04-11 20:03:36,048 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 [2018-04-11 20:03:36,059 INFO L68 tionRefinementEngine]: Using refinement strategy FixedRefinementStrategy [2018-04-11 20:03:36,092 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-04-11 20:03:36,099 INFO L270 TraceCheckSpWp]: Computing forward predicates... [2018-04-11 20:03:36,137 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 6 treesize of output 5 [2018-04-11 20:03:36,138 INFO L267 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2018-04-11 20:03:36,144 INFO L267 ElimStorePlain]: Start of recursive call 1: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-04-11 20:03:36,144 INFO L202 ElimStorePlain]: Needed 2 recursive calls to eliminate 1 variables, input treesize:6, output treesize:5 [2018-04-11 20:03:36,199 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-04-11 20:03:36,199 INFO L314 TraceCheckSpWp]: Computing backward predicates... [2018-04-11 20:03:36,212 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-04-11 20:03:36,245 INFO L320 seRefinementStrategy]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2018-04-11 20:03:36,245 INFO L335 seRefinementStrategy]: Number of different interpolants: perfect sequences [5, 5] imperfect sequences [] total 5 [2018-04-11 20:03:36,247 INFO L442 AbstractCegarLoop]: Interpolant automaton has 6 states [2018-04-11 20:03:36,256 INFO L132 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2018-04-11 20:03:36,257 INFO L133 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2018-04-11 20:03:36,259 INFO L87 Difference]: Start difference. First operand 67 states. Second operand 6 states. [2018-04-11 20:03:36,400 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-04-11 20:03:36,400 INFO L93 Difference]: Finished difference Result 108 states and 123 transitions. [2018-04-11 20:03:36,400 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2018-04-11 20:03:36,402 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 25 [2018-04-11 20:03:36,403 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-04-11 20:03:36,411 INFO L225 Difference]: With dead ends: 108 [2018-04-11 20:03:36,411 INFO L226 Difference]: Without dead ends: 58 [2018-04-11 20:03:36,414 INFO L567 BasicCegarLoop]: 0 DeclaredPredicates, 51 GetRequests, 45 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=17, Invalid=39, Unknown=0, NotChecked=0, Total=56 [2018-04-11 20:03:36,430 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 58 states. [2018-04-11 20:03:36,444 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 58 to 58. [2018-04-11 20:03:36,445 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 58 states. [2018-04-11 20:03:36,447 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 58 states to 58 states and 61 transitions. [2018-04-11 20:03:36,448 INFO L78 Accepts]: Start accepts. Automaton has 58 states and 61 transitions. Word has length 25 [2018-04-11 20:03:36,449 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-04-11 20:03:36,449 INFO L459 AbstractCegarLoop]: Abstraction has 58 states and 61 transitions. [2018-04-11 20:03:36,449 INFO L460 AbstractCegarLoop]: Interpolant automaton has 6 states. [2018-04-11 20:03:36,449 INFO L276 IsEmpty]: Start isEmpty. Operand 58 states and 61 transitions. [2018-04-11 20:03:36,450 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 26 [2018-04-11 20:03:36,450 INFO L347 BasicCegarLoop]: Found error trace [2018-04-11 20:03:36,450 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] [2018-04-11 20:03:36,450 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]=== [2018-04-11 20:03:36,450 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 [2018-04-11 20:03:36,456 INFO L68 tionRefinementEngine]: Using refinement strategy FixedRefinementStrategy [2018-04-11 20:03:36,471 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-04-11 20:03:36,474 INFO L270 TraceCheckSpWp]: Computing forward predicates... [2018-04-11 20:03:36,487 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 8 treesize of output 7 [2018-04-11 20:03:36,488 INFO L267 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2018-04-11 20:03:36,492 INFO L267 ElimStorePlain]: Start of recursive call 1: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-04-11 20:03:36,493 INFO L202 ElimStorePlain]: Needed 2 recursive calls to eliminate 1 variables, input treesize:12, output treesize:11 [2018-04-11 20:03:36,718 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-04-11 20:03:36,719 INFO L314 TraceCheckSpWp]: Computing backward predicates... [2018-04-11 20:03:37,142 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-04-11 20:03:37,164 INFO L320 seRefinementStrategy]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2018-04-11 20:03:37,164 INFO L335 seRefinementStrategy]: Number of different interpolants: perfect sequences [9, 9] imperfect sequences [] total 17 [2018-04-11 20:03:37,166 INFO L442 AbstractCegarLoop]: Interpolant automaton has 18 states [2018-04-11 20:03:37,166 INFO L132 InterpolantAutomaton]: Constructing interpolant automaton starting with 18 interpolants. [2018-04-11 20:03:37,166 INFO L133 InterpolantAutomaton]: CoverageRelationStatistics Valid=45, Invalid=261, Unknown=0, NotChecked=0, Total=306 [2018-04-11 20:03:37,166 INFO L87 Difference]: Start difference. First operand 58 states and 61 transitions. Second operand 18 states. [2018-04-11 20:03:37,989 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-04-11 20:03:37,989 INFO L93 Difference]: Finished difference Result 95 states and 106 transitions. [2018-04-11 20:03:37,989 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 18 states. [2018-04-11 20:03:37,989 INFO L78 Accepts]: Start accepts. Automaton has 18 states. Word has length 25 [2018-04-11 20:03:37,990 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-04-11 20:03:37,992 INFO L225 Difference]: With dead ends: 95 [2018-04-11 20:03:37,992 INFO L226 Difference]: Without dead ends: 89 [2018-04-11 20:03:37,994 INFO L567 BasicCegarLoop]: 0 DeclaredPredicates, 62 GetRequests, 33 SyntacticMatches, 0 SemanticMatches, 29 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 96 ImplicationChecksByTransitivity, 1.0s TimeCoverageRelationStatistics Valid=213, Invalid=717, Unknown=0, NotChecked=0, Total=930 [2018-04-11 20:03:37,994 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 89 states. [2018-04-11 20:03:38,001 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 89 to 61. [2018-04-11 20:03:38,001 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 61 states. [2018-04-11 20:03:38,002 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 61 states to 61 states and 66 transitions. [2018-04-11 20:03:38,002 INFO L78 Accepts]: Start accepts. Automaton has 61 states and 66 transitions. Word has length 25 [2018-04-11 20:03:38,002 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-04-11 20:03:38,002 INFO L459 AbstractCegarLoop]: Abstraction has 61 states and 66 transitions. [2018-04-11 20:03:38,002 INFO L460 AbstractCegarLoop]: Interpolant automaton has 18 states. [2018-04-11 20:03:38,003 INFO L276 IsEmpty]: Start isEmpty. Operand 61 states and 66 transitions. [2018-04-11 20:03:38,003 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 28 [2018-04-11 20:03:38,003 INFO L347 BasicCegarLoop]: Found error trace [2018-04-11 20:03:38,003 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] [2018-04-11 20:03:38,003 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]=== [2018-04-11 20:03:38,004 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 [2018-04-11 20:03:38,009 INFO L68 tionRefinementEngine]: Using refinement strategy FixedRefinementStrategy [2018-04-11 20:03:38,021 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-04-11 20:03:38,022 INFO L270 TraceCheckSpWp]: Computing forward predicates... [2018-04-11 20:03:38,043 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-04-11 20:03:38,043 INFO L314 TraceCheckSpWp]: Computing backward predicates... [2018-04-11 20:03:38,091 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-04-11 20:03:38,113 INFO L320 seRefinementStrategy]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2018-04-11 20:03:38,114 INFO L335 seRefinementStrategy]: Number of different interpolants: perfect sequences [6, 6] imperfect sequences [] total 8 [2018-04-11 20:03:38,114 INFO L442 AbstractCegarLoop]: Interpolant automaton has 8 states [2018-04-11 20:03:38,114 INFO L132 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2018-04-11 20:03:38,114 INFO L133 InterpolantAutomaton]: CoverageRelationStatistics Valid=17, Invalid=39, Unknown=0, NotChecked=0, Total=56 [2018-04-11 20:03:38,115 INFO L87 Difference]: Start difference. First operand 61 states and 66 transitions. Second operand 8 states. [2018-04-11 20:03:38,165 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-04-11 20:03:38,165 INFO L93 Difference]: Finished difference Result 91 states and 97 transitions. [2018-04-11 20:03:38,166 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2018-04-11 20:03:38,166 INFO L78 Accepts]: Start accepts. Automaton has 8 states. Word has length 27 [2018-04-11 20:03:38,166 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-04-11 20:03:38,167 INFO L225 Difference]: With dead ends: 91 [2018-04-11 20:03:38,167 INFO L226 Difference]: Without dead ends: 84 [2018-04-11 20:03:38,168 INFO L567 BasicCegarLoop]: 0 DeclaredPredicates, 56 GetRequests, 44 SyntacticMatches, 3 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 4 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=38, Invalid=72, Unknown=0, NotChecked=0, Total=110 [2018-04-11 20:03:38,168 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 84 states. [2018-04-11 20:03:38,175 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 84 to 61. [2018-04-11 20:03:38,175 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 61 states. [2018-04-11 20:03:38,176 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 61 states to 61 states and 65 transitions. [2018-04-11 20:03:38,177 INFO L78 Accepts]: Start accepts. Automaton has 61 states and 65 transitions. Word has length 27 [2018-04-11 20:03:38,177 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-04-11 20:03:38,177 INFO L459 AbstractCegarLoop]: Abstraction has 61 states and 65 transitions. [2018-04-11 20:03:38,177 INFO L460 AbstractCegarLoop]: Interpolant automaton has 8 states. [2018-04-11 20:03:38,177 INFO L276 IsEmpty]: Start isEmpty. Operand 61 states and 65 transitions. [2018-04-11 20:03:38,178 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 34 [2018-04-11 20:03:38,178 INFO L347 BasicCegarLoop]: Found error trace [2018-04-11 20:03:38,179 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] [2018-04-11 20:03:38,179 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]=== [2018-04-11 20:03:38,179 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 [2018-04-11 20:03:38,185 INFO L68 tionRefinementEngine]: Using refinement strategy FixedRefinementStrategy [2018-04-11 20:03:38,197 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-04-11 20:03:38,199 INFO L270 TraceCheckSpWp]: Computing forward predicates... [2018-04-11 20:03:38,212 INFO L134 CoverageAnalysis]: Checked inductivity of 5 backedges. 5 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-04-11 20:03:38,212 INFO L314 TraceCheckSpWp]: Computing backward predicates... [2018-04-11 20:03:38,225 INFO L134 CoverageAnalysis]: Checked inductivity of 5 backedges. 5 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-04-11 20:03:38,244 INFO L320 seRefinementStrategy]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2018-04-11 20:03:38,244 INFO L335 seRefinementStrategy]: Number of different interpolants: perfect sequences [6, 6] imperfect sequences [] total 6 [2018-04-11 20:03:38,245 INFO L442 AbstractCegarLoop]: Interpolant automaton has 6 states [2018-04-11 20:03:38,245 INFO L132 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2018-04-11 20:03:38,245 INFO L133 InterpolantAutomaton]: CoverageRelationStatistics Valid=10, Invalid=20, Unknown=0, NotChecked=0, Total=30 [2018-04-11 20:03:38,246 INFO L87 Difference]: Start difference. First operand 61 states and 65 transitions. Second operand 6 states. [2018-04-11 20:03:38,342 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-04-11 20:03:38,343 INFO L93 Difference]: Finished difference Result 122 states and 131 transitions. [2018-04-11 20:03:38,343 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2018-04-11 20:03:38,343 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 33 [2018-04-11 20:03:38,343 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-04-11 20:03:38,344 INFO L225 Difference]: With dead ends: 122 [2018-04-11 20:03:38,344 INFO L226 Difference]: Without dead ends: 88 [2018-04-11 20:03:38,345 INFO L567 BasicCegarLoop]: 0 DeclaredPredicates, 70 GetRequests, 58 SyntacticMatches, 4 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 4 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=35, Invalid=55, Unknown=0, NotChecked=0, Total=90 [2018-04-11 20:03:38,345 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 88 states. [2018-04-11 20:03:38,352 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 88 to 68. [2018-04-11 20:03:38,352 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 68 states. [2018-04-11 20:03:38,353 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 68 states to 68 states and 73 transitions. [2018-04-11 20:03:38,354 INFO L78 Accepts]: Start accepts. Automaton has 68 states and 73 transitions. Word has length 33 [2018-04-11 20:03:38,354 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-04-11 20:03:38,354 INFO L459 AbstractCegarLoop]: Abstraction has 68 states and 73 transitions. [2018-04-11 20:03:38,354 INFO L460 AbstractCegarLoop]: Interpolant automaton has 6 states. [2018-04-11 20:03:38,354 INFO L276 IsEmpty]: Start isEmpty. Operand 68 states and 73 transitions. [2018-04-11 20:03:38,355 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 36 [2018-04-11 20:03:38,355 INFO L347 BasicCegarLoop]: Found error trace [2018-04-11 20:03:38,356 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] [2018-04-11 20:03:38,356 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]=== [2018-04-11 20:03:38,356 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 [2018-04-11 20:03:38,365 INFO L68 tionRefinementEngine]: Using refinement strategy FixedRefinementStrategy [2018-04-11 20:03:38,375 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-04-11 20:03:38,377 INFO L270 TraceCheckSpWp]: Computing forward predicates... [2018-04-11 20:03:38,389 INFO L700 Elim1Store]: detected not equals via solver [2018-04-11 20:03:38,390 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 [2018-04-11 20:03:38,390 INFO L267 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2018-04-11 20:03:38,393 INFO L267 ElimStorePlain]: Start of recursive call 1: 1 dim-0 vars, 1 dim-1 vars, End of recursive call: 1 dim-0 vars, and 1 xjuncts. [2018-04-11 20:03:38,393 INFO L202 ElimStorePlain]: Needed 2 recursive calls to eliminate 2 variables, input treesize:12, output treesize:5 [2018-04-11 20:03:38,413 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 [2018-04-11 20:03:38,416 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2018-04-11 20:03:38,416 INFO L314 TraceCheckSpWp]: Computing backward predicates... [2018-04-11 20:03:38,428 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 [2018-04-11 20:03:38,460 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2018-04-11 20:03:38,480 INFO L320 seRefinementStrategy]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2018-04-11 20:03:38,480 INFO L335 seRefinementStrategy]: Number of different interpolants: perfect sequences [5, 4] imperfect sequences [] total 7 [2018-04-11 20:03:38,481 INFO L442 AbstractCegarLoop]: Interpolant automaton has 8 states [2018-04-11 20:03:38,481 INFO L132 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2018-04-11 20:03:38,481 INFO L133 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=21, Unknown=2, NotChecked=18, Total=56 [2018-04-11 20:03:38,481 INFO L87 Difference]: Start difference. First operand 68 states and 73 transitions. Second operand 8 states. [2018-04-11 20:03:38,490 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 [2018-04-11 20:03:38,691 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-04-11 20:03:38,691 INFO L93 Difference]: Finished difference Result 76 states and 81 transitions. [2018-04-11 20:03:38,691 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2018-04-11 20:03:38,691 INFO L78 Accepts]: Start accepts. Automaton has 8 states. Word has length 35 [2018-04-11 20:03:38,691 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-04-11 20:03:38,693 INFO L225 Difference]: With dead ends: 76 [2018-04-11 20:03:38,693 INFO L226 Difference]: Without dead ends: 71 [2018-04-11 20:03:38,694 INFO L567 BasicCegarLoop]: 0 DeclaredPredicates, 74 GetRequests, 63 SyntacticMatches, 1 SemanticMatches, 10 ConstructedPredicates, 3 IntricatePredicates, 0 DeprecatedPredicates, 5 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=29, Invalid=52, Unknown=3, NotChecked=48, Total=132 [2018-04-11 20:03:38,694 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 71 states. [2018-04-11 20:03:38,705 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 71 to 71. [2018-04-11 20:03:38,705 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 71 states. [2018-04-11 20:03:38,705 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 71 states to 71 states and 76 transitions. [2018-04-11 20:03:38,706 INFO L78 Accepts]: Start accepts. Automaton has 71 states and 76 transitions. Word has length 35 [2018-04-11 20:03:38,706 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-04-11 20:03:38,706 INFO L459 AbstractCegarLoop]: Abstraction has 71 states and 76 transitions. [2018-04-11 20:03:38,706 INFO L460 AbstractCegarLoop]: Interpolant automaton has 8 states. [2018-04-11 20:03:38,706 INFO L276 IsEmpty]: Start isEmpty. Operand 71 states and 76 transitions. [2018-04-11 20:03:38,707 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 36 [2018-04-11 20:03:38,707 INFO L347 BasicCegarLoop]: Found error trace [2018-04-11 20:03:38,707 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] [2018-04-11 20:03:38,707 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]=== [2018-04-11 20:03:38,707 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 [2018-04-11 20:03:38,713 INFO L68 tionRefinementEngine]: Using refinement strategy FixedRefinementStrategy [2018-04-11 20:03:38,724 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-04-11 20:03:38,726 INFO L270 TraceCheckSpWp]: Computing forward predicates... [2018-04-11 20:03:38,885 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 3 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-04-11 20:03:38,886 INFO L314 TraceCheckSpWp]: Computing backward predicates... [2018-04-11 20:03:38,944 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 [2018-04-11 20:03:38,945 INFO L267 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2018-04-11 20:03:38,946 INFO L267 ElimStorePlain]: Start of recursive call 1: 1 dim-0 vars, 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-04-11 20:03:38,946 INFO L202 ElimStorePlain]: Needed 2 recursive calls to eliminate 2 variables, input treesize:19, output treesize:7 [2018-04-11 20:03:39,018 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 3 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-04-11 20:03:39,037 INFO L320 seRefinementStrategy]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2018-04-11 20:03:39,037 INFO L335 seRefinementStrategy]: Number of different interpolants: perfect sequences [9, 9] imperfect sequences [] total 17 [2018-04-11 20:03:39,037 INFO L442 AbstractCegarLoop]: Interpolant automaton has 18 states [2018-04-11 20:03:39,038 INFO L132 InterpolantAutomaton]: Constructing interpolant automaton starting with 18 interpolants. [2018-04-11 20:03:39,038 INFO L133 InterpolantAutomaton]: CoverageRelationStatistics Valid=56, Invalid=250, Unknown=0, NotChecked=0, Total=306 [2018-04-11 20:03:39,038 INFO L87 Difference]: Start difference. First operand 71 states and 76 transitions. Second operand 18 states. [2018-04-11 20:03:39,310 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-04-11 20:03:39,310 INFO L93 Difference]: Finished difference Result 97 states and 104 transitions. [2018-04-11 20:03:39,310 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2018-04-11 20:03:39,311 INFO L78 Accepts]: Start accepts. Automaton has 18 states. Word has length 35 [2018-04-11 20:03:39,311 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-04-11 20:03:39,311 INFO L225 Difference]: With dead ends: 97 [2018-04-11 20:03:39,312 INFO L226 Difference]: Without dead ends: 95 [2018-04-11 20:03:39,312 INFO L567 BasicCegarLoop]: 0 DeclaredPredicates, 79 GetRequests, 53 SyntacticMatches, 0 SemanticMatches, 26 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 85 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=187, Invalid=569, Unknown=0, NotChecked=0, Total=756 [2018-04-11 20:03:39,312 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 95 states. [2018-04-11 20:03:39,319 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 95 to 67. [2018-04-11 20:03:39,319 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 67 states. [2018-04-11 20:03:39,320 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 67 states to 67 states and 71 transitions. [2018-04-11 20:03:39,320 INFO L78 Accepts]: Start accepts. Automaton has 67 states and 71 transitions. Word has length 35 [2018-04-11 20:03:39,320 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-04-11 20:03:39,320 INFO L459 AbstractCegarLoop]: Abstraction has 67 states and 71 transitions. [2018-04-11 20:03:39,320 INFO L460 AbstractCegarLoop]: Interpolant automaton has 18 states. [2018-04-11 20:03:39,320 INFO L276 IsEmpty]: Start isEmpty. Operand 67 states and 71 transitions. [2018-04-11 20:03:39,322 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 37 [2018-04-11 20:03:39,322 INFO L347 BasicCegarLoop]: Found error trace [2018-04-11 20:03:39,322 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] [2018-04-11 20:03:39,322 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]=== [2018-04-11 20:03:39,322 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 [2018-04-11 20:03:39,328 INFO L68 tionRefinementEngine]: Using refinement strategy FixedRefinementStrategy [2018-04-11 20:03:39,340 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-04-11 20:03:39,343 INFO L270 TraceCheckSpWp]: Computing forward predicates... [2018-04-11 20:03:39,362 INFO L700 Elim1Store]: detected not equals via solver [2018-04-11 20:03:39,363 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 1 select indices, 1 select index equivalence classes, 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 [2018-04-11 20:03:39,363 INFO L267 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2018-04-11 20:03:39,365 INFO L267 ElimStorePlain]: Start of recursive call 1: 1 dim-0 vars, 1 dim-1 vars, End of recursive call: 1 dim-0 vars, and 1 xjuncts. [2018-04-11 20:03:39,365 INFO L202 ElimStorePlain]: Needed 2 recursive calls to eliminate 2 variables, input treesize:12, output treesize:5 [2018-04-11 20:03:39,382 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 [2018-04-11 20:03:39,385 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2018-04-11 20:03:39,385 INFO L314 TraceCheckSpWp]: Computing backward predicates... [2018-04-11 20:03:39,395 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 [2018-04-11 20:03:39,401 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2018-04-11 20:03:39,420 INFO L320 seRefinementStrategy]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2018-04-11 20:03:39,420 INFO L335 seRefinementStrategy]: Number of different interpolants: perfect sequences [5, 4] imperfect sequences [] total 7 [2018-04-11 20:03:39,420 INFO L442 AbstractCegarLoop]: Interpolant automaton has 8 states [2018-04-11 20:03:39,420 INFO L132 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2018-04-11 20:03:39,421 INFO L133 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=21, Unknown=2, NotChecked=18, Total=56 [2018-04-11 20:03:39,421 INFO L87 Difference]: Start difference. First operand 67 states and 71 transitions. Second operand 8 states. [2018-04-11 20:03:39,427 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 [2018-04-11 20:03:39,561 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-04-11 20:03:39,561 INFO L93 Difference]: Finished difference Result 67 states and 71 transitions. [2018-04-11 20:03:39,562 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2018-04-11 20:03:39,562 INFO L78 Accepts]: Start accepts. Automaton has 8 states. Word has length 36 [2018-04-11 20:03:39,562 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-04-11 20:03:39,563 INFO L225 Difference]: With dead ends: 67 [2018-04-11 20:03:39,563 INFO L226 Difference]: Without dead ends: 55 [2018-04-11 20:03:39,563 INFO L567 BasicCegarLoop]: 0 DeclaredPredicates, 76 GetRequests, 65 SyntacticMatches, 1 SemanticMatches, 10 ConstructedPredicates, 3 IntricatePredicates, 0 DeprecatedPredicates, 5 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=29, Invalid=52, Unknown=3, NotChecked=48, Total=132 [2018-04-11 20:03:39,563 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 55 states. [2018-04-11 20:03:39,569 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 55 to 50. [2018-04-11 20:03:39,569 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 50 states. [2018-04-11 20:03:39,570 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 50 states to 50 states and 53 transitions. [2018-04-11 20:03:39,570 INFO L78 Accepts]: Start accepts. Automaton has 50 states and 53 transitions. Word has length 36 [2018-04-11 20:03:39,570 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-04-11 20:03:39,570 INFO L459 AbstractCegarLoop]: Abstraction has 50 states and 53 transitions. [2018-04-11 20:03:39,570 INFO L460 AbstractCegarLoop]: Interpolant automaton has 8 states. [2018-04-11 20:03:39,570 INFO L276 IsEmpty]: Start isEmpty. Operand 50 states and 53 transitions. [2018-04-11 20:03:39,571 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 37 [2018-04-11 20:03:39,571 INFO L347 BasicCegarLoop]: Found error trace [2018-04-11 20:03:39,571 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] [2018-04-11 20:03:39,571 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]=== [2018-04-11 20:03:39,571 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 [2018-04-11 20:03:39,577 INFO L68 tionRefinementEngine]: Using refinement strategy FixedRefinementStrategy [2018-04-11 20:03:39,588 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-04-11 20:03:39,590 INFO L270 TraceCheckSpWp]: Computing forward predicates... [2018-04-11 20:03:39,593 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 8 treesize of output 7 [2018-04-11 20:03:39,593 INFO L267 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2018-04-11 20:03:39,597 INFO L267 ElimStorePlain]: Start of recursive call 1: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-04-11 20:03:39,597 INFO L202 ElimStorePlain]: Needed 2 recursive calls to eliminate 1 variables, input treesize:12, output treesize:11 [2018-04-11 20:03:39,811 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2018-04-11 20:03:39,811 INFO L314 TraceCheckSpWp]: Computing backward predicates... [2018-04-11 20:03:40,210 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2018-04-11 20:03:40,241 INFO L320 seRefinementStrategy]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2018-04-11 20:03:40,241 INFO L335 seRefinementStrategy]: Number of different interpolants: perfect sequences [] imperfect sequences [9, 9] total 17 [2018-04-11 20:03:40,241 INFO L442 AbstractCegarLoop]: Interpolant automaton has 18 states [2018-04-11 20:03:40,242 INFO L132 InterpolantAutomaton]: Constructing interpolant automaton starting with 18 interpolants. [2018-04-11 20:03:40,242 INFO L133 InterpolantAutomaton]: CoverageRelationStatistics Valid=44, Invalid=262, Unknown=0, NotChecked=0, Total=306 [2018-04-11 20:03:40,242 INFO L87 Difference]: Start difference. First operand 50 states and 53 transitions. Second operand 18 states. [2018-04-11 20:03:40,573 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-04-11 20:03:40,618 INFO L93 Difference]: Finished difference Result 79 states and 84 transitions. [2018-04-11 20:03:40,618 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2018-04-11 20:03:40,618 INFO L78 Accepts]: Start accepts. Automaton has 18 states. Word has length 36 [2018-04-11 20:03:40,618 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-04-11 20:03:40,619 INFO L225 Difference]: With dead ends: 79 [2018-04-11 20:03:40,619 INFO L226 Difference]: Without dead ends: 78 [2018-04-11 20:03:40,619 INFO L567 BasicCegarLoop]: 0 DeclaredPredicates, 78 GetRequests, 55 SyntacticMatches, 0 SemanticMatches, 23 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 50 ImplicationChecksByTransitivity, 0.7s TimeCoverageRelationStatistics Valid=123, Invalid=477, Unknown=0, NotChecked=0, Total=600 [2018-04-11 20:03:40,620 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 78 states. [2018-04-11 20:03:40,630 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 78 to 74. [2018-04-11 20:03:40,630 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 74 states. [2018-04-11 20:03:40,631 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 74 states to 74 states and 79 transitions. [2018-04-11 20:03:40,631 INFO L78 Accepts]: Start accepts. Automaton has 74 states and 79 transitions. Word has length 36 [2018-04-11 20:03:40,631 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-04-11 20:03:40,631 INFO L459 AbstractCegarLoop]: Abstraction has 74 states and 79 transitions. [2018-04-11 20:03:40,631 INFO L460 AbstractCegarLoop]: Interpolant automaton has 18 states. [2018-04-11 20:03:40,632 INFO L276 IsEmpty]: Start isEmpty. Operand 74 states and 79 transitions. [2018-04-11 20:03:40,633 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 55 [2018-04-11 20:03:40,633 INFO L347 BasicCegarLoop]: Found error trace [2018-04-11 20:03:40,633 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] [2018-04-11 20:03:40,633 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]=== [2018-04-11 20:03:40,633 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 [2018-04-11 20:03:40,645 INFO L68 tionRefinementEngine]: Using refinement strategy FixedRefinementStrategy [2018-04-11 20:03:40,664 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-04-11 20:03:40,667 INFO L270 TraceCheckSpWp]: Computing forward predicates... [2018-04-11 20:03:40,697 INFO L134 CoverageAnalysis]: Checked inductivity of 27 backedges. 19 proven. 6 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2018-04-11 20:03:40,697 INFO L314 TraceCheckSpWp]: Computing backward predicates... [2018-04-11 20:03:40,726 INFO L134 CoverageAnalysis]: Checked inductivity of 27 backedges. 19 proven. 6 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2018-04-11 20:03:40,746 INFO L320 seRefinementStrategy]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2018-04-11 20:03:40,746 INFO L335 seRefinementStrategy]: Number of different interpolants: perfect sequences [] imperfect sequences [9, 9] total 10 [2018-04-11 20:03:40,746 INFO L442 AbstractCegarLoop]: Interpolant automaton has 10 states [2018-04-11 20:03:40,746 INFO L132 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2018-04-11 20:03:40,746 INFO L133 InterpolantAutomaton]: CoverageRelationStatistics Valid=22, Invalid=68, Unknown=0, NotChecked=0, Total=90 [2018-04-11 20:03:40,747 INFO L87 Difference]: Start difference. First operand 74 states and 79 transitions. Second operand 10 states. [2018-04-11 20:03:40,945 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-04-11 20:03:40,946 INFO L93 Difference]: Finished difference Result 181 states and 194 transitions. [2018-04-11 20:03:40,946 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2018-04-11 20:03:40,946 INFO L78 Accepts]: Start accepts. Automaton has 10 states. Word has length 54 [2018-04-11 20:03:40,946 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-04-11 20:03:40,947 INFO L225 Difference]: With dead ends: 181 [2018-04-11 20:03:40,947 INFO L226 Difference]: Without dead ends: 143 [2018-04-11 20:03:40,948 INFO L567 BasicCegarLoop]: 0 DeclaredPredicates, 115 GetRequests, 94 SyntacticMatches, 6 SemanticMatches, 15 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 41 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=66, Invalid=206, Unknown=0, NotChecked=0, Total=272 [2018-04-11 20:03:40,948 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 143 states. [2018-04-11 20:03:40,964 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 143 to 110. [2018-04-11 20:03:40,964 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 110 states. [2018-04-11 20:03:40,965 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 110 states to 110 states and 117 transitions. [2018-04-11 20:03:40,966 INFO L78 Accepts]: Start accepts. Automaton has 110 states and 117 transitions. Word has length 54 [2018-04-11 20:03:40,966 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-04-11 20:03:40,966 INFO L459 AbstractCegarLoop]: Abstraction has 110 states and 117 transitions. [2018-04-11 20:03:40,966 INFO L460 AbstractCegarLoop]: Interpolant automaton has 10 states. [2018-04-11 20:03:40,966 INFO L276 IsEmpty]: Start isEmpty. Operand 110 states and 117 transitions. [2018-04-11 20:03:40,968 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 65 [2018-04-11 20:03:40,968 INFO L347 BasicCegarLoop]: Found error trace [2018-04-11 20:03:40,968 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] [2018-04-11 20:03:40,968 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]=== [2018-04-11 20:03:40,968 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 [2018-04-11 20:03:40,978 INFO L68 tionRefinementEngine]: Using refinement strategy FixedRefinementStrategy [2018-04-11 20:03:41,004 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-04-11 20:03:41,008 INFO L270 TraceCheckSpWp]: Computing forward predicates... [2018-04-11 20:03:41,070 INFO L134 CoverageAnalysis]: Checked inductivity of 53 backedges. 11 proven. 42 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-04-11 20:03:41,070 INFO L314 TraceCheckSpWp]: Computing backward predicates... [2018-04-11 20:03:41,135 INFO L134 CoverageAnalysis]: Checked inductivity of 53 backedges. 11 proven. 42 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-04-11 20:03:41,156 INFO L320 seRefinementStrategy]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2018-04-11 20:03:41,156 INFO L335 seRefinementStrategy]: Number of different interpolants: perfect sequences [] imperfect sequences [13, 13] total 16 [2018-04-11 20:03:41,156 INFO L442 AbstractCegarLoop]: Interpolant automaton has 16 states [2018-04-11 20:03:41,156 INFO L132 InterpolantAutomaton]: Constructing interpolant automaton starting with 16 interpolants. [2018-04-11 20:03:41,157 INFO L133 InterpolantAutomaton]: CoverageRelationStatistics Valid=46, Invalid=194, Unknown=0, NotChecked=0, Total=240 [2018-04-11 20:03:41,157 INFO L87 Difference]: Start difference. First operand 110 states and 117 transitions. Second operand 16 states. [2018-04-11 20:03:41,436 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-04-11 20:03:41,436 INFO L93 Difference]: Finished difference Result 256 states and 273 transitions. [2018-04-11 20:03:41,436 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 18 states. [2018-04-11 20:03:41,436 INFO L78 Accepts]: Start accepts. Automaton has 16 states. Word has length 64 [2018-04-11 20:03:41,436 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-04-11 20:03:41,437 INFO L225 Difference]: With dead ends: 256 [2018-04-11 20:03:41,437 INFO L226 Difference]: Without dead ends: 182 [2018-04-11 20:03:41,438 INFO L567 BasicCegarLoop]: 0 DeclaredPredicates, 140 GetRequests, 106 SyntacticMatches, 8 SemanticMatches, 26 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 154 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=161, Invalid=595, Unknown=0, NotChecked=0, Total=756 [2018-04-11 20:03:41,438 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 182 states. [2018-04-11 20:03:41,451 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 182 to 148. [2018-04-11 20:03:41,451 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 148 states. [2018-04-11 20:03:41,452 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 148 states to 148 states and 158 transitions. [2018-04-11 20:03:41,452 INFO L78 Accepts]: Start accepts. Automaton has 148 states and 158 transitions. Word has length 64 [2018-04-11 20:03:41,452 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-04-11 20:03:41,453 INFO L459 AbstractCegarLoop]: Abstraction has 148 states and 158 transitions. [2018-04-11 20:03:41,453 INFO L460 AbstractCegarLoop]: Interpolant automaton has 16 states. [2018-04-11 20:03:41,453 INFO L276 IsEmpty]: Start isEmpty. Operand 148 states and 158 transitions. [2018-04-11 20:03:41,454 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 75 [2018-04-11 20:03:41,454 INFO L347 BasicCegarLoop]: Found error trace [2018-04-11 20:03:41,454 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] [2018-04-11 20:03:41,454 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]=== [2018-04-11 20:03:41,455 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 [2018-04-11 20:03:41,464 INFO L68 tionRefinementEngine]: Using refinement strategy FixedRefinementStrategy [2018-04-11 20:03:41,485 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-04-11 20:03:41,488 INFO L270 TraceCheckSpWp]: Computing forward predicates... [2018-04-11 20:03:41,603 INFO L134 CoverageAnalysis]: Checked inductivity of 89 backedges. 31 proven. 58 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-04-11 20:03:41,604 INFO L314 TraceCheckSpWp]: Computing backward predicates... [2018-04-11 20:03:41,709 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 [2018-04-11 20:03:41,709 INFO L267 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2018-04-11 20:03:41,712 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. [2018-04-11 20:03:41,712 INFO L202 ElimStorePlain]: Needed 2 recursive calls to eliminate 3 variables, input treesize:26, output treesize:13 [2018-04-11 20:03:41,746 INFO L134 CoverageAnalysis]: Checked inductivity of 89 backedges. 19 proven. 70 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-04-11 20:03:41,766 INFO L320 seRefinementStrategy]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2018-04-11 20:03:41,766 INFO L335 seRefinementStrategy]: Number of different interpolants: perfect sequences [] imperfect sequences [11, 11] total 16 [2018-04-11 20:03:41,767 INFO L442 AbstractCegarLoop]: Interpolant automaton has 17 states [2018-04-11 20:03:41,767 INFO L132 InterpolantAutomaton]: Constructing interpolant automaton starting with 17 interpolants. [2018-04-11 20:03:41,767 INFO L133 InterpolantAutomaton]: CoverageRelationStatistics Valid=54, Invalid=218, Unknown=0, NotChecked=0, Total=272 [2018-04-11 20:03:41,767 INFO L87 Difference]: Start difference. First operand 148 states and 158 transitions. Second operand 17 states. [2018-04-11 20:03:42,247 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-04-11 20:03:42,248 INFO L93 Difference]: Finished difference Result 149 states and 158 transitions. [2018-04-11 20:03:42,248 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 19 states. [2018-04-11 20:03:42,248 INFO L78 Accepts]: Start accepts. Automaton has 17 states. Word has length 74 [2018-04-11 20:03:42,248 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-04-11 20:03:42,249 INFO L225 Difference]: With dead ends: 149 [2018-04-11 20:03:42,249 INFO L226 Difference]: Without dead ends: 148 [2018-04-11 20:03:42,250 INFO L567 BasicCegarLoop]: 0 DeclaredPredicates, 163 GetRequests, 128 SyntacticMatches, 5 SemanticMatches, 30 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 180 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=231, Invalid=761, Unknown=0, NotChecked=0, Total=992 [2018-04-11 20:03:42,250 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 148 states. [2018-04-11 20:03:42,261 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 148 to 148. [2018-04-11 20:03:42,261 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 148 states. [2018-04-11 20:03:42,262 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 148 states to 148 states and 157 transitions. [2018-04-11 20:03:42,263 INFO L78 Accepts]: Start accepts. Automaton has 148 states and 157 transitions. Word has length 74 [2018-04-11 20:03:42,263 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-04-11 20:03:42,263 INFO L459 AbstractCegarLoop]: Abstraction has 148 states and 157 transitions. [2018-04-11 20:03:42,263 INFO L460 AbstractCegarLoop]: Interpolant automaton has 17 states. [2018-04-11 20:03:42,263 INFO L276 IsEmpty]: Start isEmpty. Operand 148 states and 157 transitions. [2018-04-11 20:03:42,265 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 85 [2018-04-11 20:03:42,265 INFO L347 BasicCegarLoop]: Found error trace [2018-04-11 20:03:42,265 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] [2018-04-11 20:03:42,265 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]=== [2018-04-11 20:03:42,266 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 [2018-04-11 20:03:42,272 INFO L68 tionRefinementEngine]: Using refinement strategy FixedRefinementStrategy [2018-04-11 20:03:42,299 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-04-11 20:03:42,308 INFO L270 TraceCheckSpWp]: Computing forward predicates... [2018-04-11 20:03:42,460 INFO L134 CoverageAnalysis]: Checked inductivity of 135 backedges. 27 proven. 108 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-04-11 20:03:42,461 INFO L314 TraceCheckSpWp]: Computing backward predicates... [2018-04-11 20:03:42,580 INFO L134 CoverageAnalysis]: Checked inductivity of 135 backedges. 27 proven. 108 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-04-11 20:03:42,612 INFO L320 seRefinementStrategy]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2018-04-11 20:03:42,612 INFO L335 seRefinementStrategy]: Number of different interpolants: perfect sequences [] imperfect sequences [17, 17] total 22 [2018-04-11 20:03:42,612 INFO L442 AbstractCegarLoop]: Interpolant automaton has 22 states [2018-04-11 20:03:42,613 INFO L132 InterpolantAutomaton]: Constructing interpolant automaton starting with 22 interpolants. [2018-04-11 20:03:42,613 INFO L133 InterpolantAutomaton]: CoverageRelationStatistics Valid=78, Invalid=384, Unknown=0, NotChecked=0, Total=462 [2018-04-11 20:03:42,613 INFO L87 Difference]: Start difference. First operand 148 states and 157 transitions. Second operand 22 states. [2018-04-11 20:03:43,022 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-04-11 20:03:43,022 INFO L93 Difference]: Finished difference Result 332 states and 353 transitions. [2018-04-11 20:03:43,022 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 24 states. [2018-04-11 20:03:43,022 INFO L78 Accepts]: Start accepts. Automaton has 22 states. Word has length 84 [2018-04-11 20:03:43,022 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-04-11 20:03:43,023 INFO L225 Difference]: With dead ends: 332 [2018-04-11 20:03:43,023 INFO L226 Difference]: Without dead ends: 220 [2018-04-11 20:03:43,024 INFO L567 BasicCegarLoop]: 0 DeclaredPredicates, 185 GetRequests, 138 SyntacticMatches, 10 SemanticMatches, 37 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 346 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=290, Invalid=1192, Unknown=0, NotChecked=0, Total=1482 [2018-04-11 20:03:43,024 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 220 states. [2018-04-11 20:03:43,037 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 220 to 186. [2018-04-11 20:03:43,037 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 186 states. [2018-04-11 20:03:43,038 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 186 states to 186 states and 198 transitions. [2018-04-11 20:03:43,038 INFO L78 Accepts]: Start accepts. Automaton has 186 states and 198 transitions. Word has length 84 [2018-04-11 20:03:43,039 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-04-11 20:03:43,039 INFO L459 AbstractCegarLoop]: Abstraction has 186 states and 198 transitions. [2018-04-11 20:03:43,039 INFO L460 AbstractCegarLoop]: Interpolant automaton has 22 states. [2018-04-11 20:03:43,039 INFO L276 IsEmpty]: Start isEmpty. Operand 186 states and 198 transitions. [2018-04-11 20:03:43,040 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 95 [2018-04-11 20:03:43,040 INFO L347 BasicCegarLoop]: Found error trace [2018-04-11 20:03:43,040 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] [2018-04-11 20:03:43,040 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]=== [2018-04-11 20:03:43,041 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 [2018-04-11 20:03:43,048 INFO L68 tionRefinementEngine]: Using refinement strategy FixedRefinementStrategy [2018-04-11 20:03:43,080 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-04-11 20:03:43,084 INFO L270 TraceCheckSpWp]: Computing forward predicates... [2018-04-11 20:03:43,310 INFO L134 CoverageAnalysis]: Checked inductivity of 191 backedges. 63 proven. 128 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-04-11 20:03:43,310 INFO L314 TraceCheckSpWp]: Computing backward predicates... [2018-04-11 20:03:43,501 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 [2018-04-11 20:03:43,501 INFO L267 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2018-04-11 20:03:43,504 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. [2018-04-11 20:03:43,504 INFO L202 ElimStorePlain]: Needed 2 recursive calls to eliminate 3 variables, input treesize:26, output treesize:13 [2018-04-11 20:03:43,548 INFO L134 CoverageAnalysis]: Checked inductivity of 191 backedges. 42 proven. 149 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-04-11 20:03:43,580 INFO L320 seRefinementStrategy]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2018-04-11 20:03:43,580 INFO L335 seRefinementStrategy]: Number of different interpolants: perfect sequences [] imperfect sequences [15, 15] total 22 [2018-04-11 20:03:43,581 INFO L442 AbstractCegarLoop]: Interpolant automaton has 23 states [2018-04-11 20:03:43,581 INFO L132 InterpolantAutomaton]: Constructing interpolant automaton starting with 23 interpolants. [2018-04-11 20:03:43,581 INFO L133 InterpolantAutomaton]: CoverageRelationStatistics Valid=86, Invalid=420, Unknown=0, NotChecked=0, Total=506 [2018-04-11 20:03:43,581 INFO L87 Difference]: Start difference. First operand 186 states and 198 transitions. Second operand 23 states. [2018-04-11 20:03:44,348 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-04-11 20:03:44,348 INFO L93 Difference]: Finished difference Result 187 states and 198 transitions. [2018-04-11 20:03:44,348 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 26 states. [2018-04-11 20:03:44,349 INFO L78 Accepts]: Start accepts. Automaton has 23 states. Word has length 94 [2018-04-11 20:03:44,349 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-04-11 20:03:44,350 INFO L225 Difference]: With dead ends: 187 [2018-04-11 20:03:44,350 INFO L226 Difference]: Without dead ends: 186 [2018-04-11 20:03:44,351 INFO L567 BasicCegarLoop]: 0 DeclaredPredicates, 209 GetRequests, 160 SyntacticMatches, 7 SemanticMatches, 42 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 442 ImplicationChecksByTransitivity, 0.6s TimeCoverageRelationStatistics Valid=386, Invalid=1506, Unknown=0, NotChecked=0, Total=1892 [2018-04-11 20:03:44,351 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 186 states. [2018-04-11 20:03:44,363 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 186 to 186. [2018-04-11 20:03:44,363 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 186 states. [2018-04-11 20:03:44,364 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 186 states to 186 states and 197 transitions. [2018-04-11 20:03:44,365 INFO L78 Accepts]: Start accepts. Automaton has 186 states and 197 transitions. Word has length 94 [2018-04-11 20:03:44,365 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-04-11 20:03:44,365 INFO L459 AbstractCegarLoop]: Abstraction has 186 states and 197 transitions. [2018-04-11 20:03:44,365 INFO L460 AbstractCegarLoop]: Interpolant automaton has 23 states. [2018-04-11 20:03:44,365 INFO L276 IsEmpty]: Start isEmpty. Operand 186 states and 197 transitions. [2018-04-11 20:03:44,366 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 105 [2018-04-11 20:03:44,366 INFO L347 BasicCegarLoop]: Found error trace [2018-04-11 20:03:44,366 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] [2018-04-11 20:03:44,366 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]=== [2018-04-11 20:03:44,366 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 [2018-04-11 20:03:44,372 INFO L68 tionRefinementEngine]: Using refinement strategy FixedRefinementStrategy [2018-04-11 20:03:44,396 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-04-11 20:03:44,398 INFO L270 TraceCheckSpWp]: Computing forward predicates... [2018-04-11 20:03:44,533 INFO L134 CoverageAnalysis]: Checked inductivity of 257 backedges. 53 proven. 204 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-04-11 20:03:44,533 INFO L314 TraceCheckSpWp]: Computing backward predicates... [2018-04-11 20:03:44,664 INFO L134 CoverageAnalysis]: Checked inductivity of 257 backedges. 53 proven. 204 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-04-11 20:03:44,684 INFO L320 seRefinementStrategy]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2018-04-11 20:03:44,684 INFO L335 seRefinementStrategy]: Number of different interpolants: perfect sequences [] imperfect sequences [21, 21] total 28 [2018-04-11 20:03:44,685 INFO L442 AbstractCegarLoop]: Interpolant automaton has 28 states [2018-04-11 20:03:44,685 INFO L132 InterpolantAutomaton]: Constructing interpolant automaton starting with 28 interpolants. [2018-04-11 20:03:44,685 INFO L133 InterpolantAutomaton]: CoverageRelationStatistics Valid=118, Invalid=638, Unknown=0, NotChecked=0, Total=756 [2018-04-11 20:03:44,685 INFO L87 Difference]: Start difference. First operand 186 states and 197 transitions. Second operand 28 states. [2018-04-11 20:03:45,142 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-04-11 20:03:45,143 INFO L93 Difference]: Finished difference Result 408 states and 433 transitions. [2018-04-11 20:03:45,143 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 30 states. [2018-04-11 20:03:45,143 INFO L78 Accepts]: Start accepts. Automaton has 28 states. Word has length 104 [2018-04-11 20:03:45,144 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-04-11 20:03:45,145 INFO L225 Difference]: With dead ends: 408 [2018-04-11 20:03:45,145 INFO L226 Difference]: Without dead ends: 258 [2018-04-11 20:03:45,147 INFO L567 BasicCegarLoop]: 0 DeclaredPredicates, 230 GetRequests, 170 SyntacticMatches, 12 SemanticMatches, 48 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 616 ImplicationChecksByTransitivity, 0.4s TimeCoverageRelationStatistics Valid=454, Invalid=1996, Unknown=0, NotChecked=0, Total=2450 [2018-04-11 20:03:45,147 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 258 states. [2018-04-11 20:03:45,169 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 258 to 224. [2018-04-11 20:03:45,169 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 224 states. [2018-04-11 20:03:45,170 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 224 states to 224 states and 238 transitions. [2018-04-11 20:03:45,171 INFO L78 Accepts]: Start accepts. Automaton has 224 states and 238 transitions. Word has length 104 [2018-04-11 20:03:45,171 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-04-11 20:03:45,171 INFO L459 AbstractCegarLoop]: Abstraction has 224 states and 238 transitions. [2018-04-11 20:03:45,171 INFO L460 AbstractCegarLoop]: Interpolant automaton has 28 states. [2018-04-11 20:03:45,171 INFO L276 IsEmpty]: Start isEmpty. Operand 224 states and 238 transitions. [2018-04-11 20:03:45,173 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 115 [2018-04-11 20:03:45,173 INFO L347 BasicCegarLoop]: Found error trace [2018-04-11 20:03:45,173 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] [2018-04-11 20:03:45,173 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]=== [2018-04-11 20:03:45,173 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 [2018-04-11 20:03:45,184 INFO L68 tionRefinementEngine]: Using refinement strategy FixedRefinementStrategy [2018-04-11 20:03:45,212 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-04-11 20:03:45,215 INFO L270 TraceCheckSpWp]: Computing forward predicates... [2018-04-11 20:03:45,480 INFO L134 CoverageAnalysis]: Checked inductivity of 333 backedges. 105 proven. 228 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-04-11 20:03:45,480 INFO L314 TraceCheckSpWp]: Computing backward predicates... [2018-04-11 20:03:45,674 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 [2018-04-11 20:03:45,675 INFO L267 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2018-04-11 20:03:45,709 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. [2018-04-11 20:03:45,710 INFO L202 ElimStorePlain]: Needed 2 recursive calls to eliminate 3 variables, input treesize:26, output treesize:13 [2018-04-11 20:03:45,768 INFO L134 CoverageAnalysis]: Checked inductivity of 333 backedges. 75 proven. 258 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-04-11 20:03:45,787 INFO L320 seRefinementStrategy]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2018-04-11 20:03:45,787 INFO L335 seRefinementStrategy]: Number of different interpolants: perfect sequences [] imperfect sequences [19, 19] total 28 [2018-04-11 20:03:45,788 INFO L442 AbstractCegarLoop]: Interpolant automaton has 29 states [2018-04-11 20:03:45,788 INFO L132 InterpolantAutomaton]: Constructing interpolant automaton starting with 29 interpolants. [2018-04-11 20:03:45,788 INFO L133 InterpolantAutomaton]: CoverageRelationStatistics Valid=126, Invalid=686, Unknown=0, NotChecked=0, Total=812 [2018-04-11 20:03:45,788 INFO L87 Difference]: Start difference. First operand 224 states and 238 transitions. Second operand 29 states. [2018-04-11 20:03:46,699 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-04-11 20:03:46,699 INFO L93 Difference]: Finished difference Result 225 states and 238 transitions. [2018-04-11 20:03:46,700 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 33 states. [2018-04-11 20:03:46,700 INFO L78 Accepts]: Start accepts. Automaton has 29 states. Word has length 114 [2018-04-11 20:03:46,700 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-04-11 20:03:46,701 INFO L225 Difference]: With dead ends: 225 [2018-04-11 20:03:46,701 INFO L226 Difference]: Without dead ends: 224 [2018-04-11 20:03:46,702 INFO L567 BasicCegarLoop]: 0 DeclaredPredicates, 255 GetRequests, 192 SyntacticMatches, 9 SemanticMatches, 54 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 819 ImplicationChecksByTransitivity, 0.8s TimeCoverageRelationStatistics Valid=581, Invalid=2499, Unknown=0, NotChecked=0, Total=3080 [2018-04-11 20:03:46,702 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 224 states. [2018-04-11 20:03:46,715 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 224 to 224. [2018-04-11 20:03:46,716 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 224 states. [2018-04-11 20:03:46,716 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 224 states to 224 states and 237 transitions. [2018-04-11 20:03:46,716 INFO L78 Accepts]: Start accepts. Automaton has 224 states and 237 transitions. Word has length 114 [2018-04-11 20:03:46,717 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-04-11 20:03:46,717 INFO L459 AbstractCegarLoop]: Abstraction has 224 states and 237 transitions. [2018-04-11 20:03:46,717 INFO L460 AbstractCegarLoop]: Interpolant automaton has 29 states. [2018-04-11 20:03:46,717 INFO L276 IsEmpty]: Start isEmpty. Operand 224 states and 237 transitions. [2018-04-11 20:03:46,718 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 125 [2018-04-11 20:03:46,718 INFO L347 BasicCegarLoop]: Found error trace [2018-04-11 20:03:46,718 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] [2018-04-11 20:03:46,718 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]=== [2018-04-11 20:03:46,718 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 [2018-04-11 20:03:46,729 INFO L68 tionRefinementEngine]: Using refinement strategy FixedRefinementStrategy [2018-04-11 20:03:46,758 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-04-11 20:03:46,761 INFO L270 TraceCheckSpWp]: Computing forward predicates... [2018-04-11 20:03:46,956 INFO L134 CoverageAnalysis]: Checked inductivity of 419 backedges. 89 proven. 330 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-04-11 20:03:46,956 INFO L314 TraceCheckSpWp]: Computing backward predicates... [2018-04-11 20:03:47,138 INFO L134 CoverageAnalysis]: Checked inductivity of 419 backedges. 89 proven. 330 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-04-11 20:03:47,157 INFO L320 seRefinementStrategy]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2018-04-11 20:03:47,158 INFO L335 seRefinementStrategy]: Number of different interpolants: perfect sequences [] imperfect sequences [25, 25] total 34 [2018-04-11 20:03:47,158 INFO L442 AbstractCegarLoop]: Interpolant automaton has 34 states [2018-04-11 20:03:47,158 INFO L132 InterpolantAutomaton]: Constructing interpolant automaton starting with 34 interpolants. [2018-04-11 20:03:47,159 INFO L133 InterpolantAutomaton]: CoverageRelationStatistics Valid=166, Invalid=956, Unknown=0, NotChecked=0, Total=1122 [2018-04-11 20:03:47,159 INFO L87 Difference]: Start difference. First operand 224 states and 237 transitions. Second operand 34 states. [2018-04-11 20:03:47,773 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-04-11 20:03:47,774 INFO L93 Difference]: Finished difference Result 484 states and 513 transitions. [2018-04-11 20:03:47,774 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 36 states. [2018-04-11 20:03:47,774 INFO L78 Accepts]: Start accepts. Automaton has 34 states. Word has length 124 [2018-04-11 20:03:47,774 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-04-11 20:03:47,775 INFO L225 Difference]: With dead ends: 484 [2018-04-11 20:03:47,776 INFO L226 Difference]: Without dead ends: 296 [2018-04-11 20:03:47,777 INFO L567 BasicCegarLoop]: 0 DeclaredPredicates, 275 GetRequests, 202 SyntacticMatches, 14 SemanticMatches, 59 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 964 ImplicationChecksByTransitivity, 0.5s TimeCoverageRelationStatistics Valid=653, Invalid=3007, Unknown=0, NotChecked=0, Total=3660 [2018-04-11 20:03:47,778 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 296 states. [2018-04-11 20:03:47,793 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 296 to 262. [2018-04-11 20:03:47,794 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 262 states. [2018-04-11 20:03:47,795 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 262 states to 262 states and 278 transitions. [2018-04-11 20:03:47,795 INFO L78 Accepts]: Start accepts. Automaton has 262 states and 278 transitions. Word has length 124 [2018-04-11 20:03:47,795 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-04-11 20:03:47,795 INFO L459 AbstractCegarLoop]: Abstraction has 262 states and 278 transitions. [2018-04-11 20:03:47,795 INFO L460 AbstractCegarLoop]: Interpolant automaton has 34 states. [2018-04-11 20:03:47,795 INFO L276 IsEmpty]: Start isEmpty. Operand 262 states and 278 transitions. [2018-04-11 20:03:47,796 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 135 [2018-04-11 20:03:47,796 INFO L347 BasicCegarLoop]: Found error trace [2018-04-11 20:03:47,796 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] [2018-04-11 20:03:47,796 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]=== [2018-04-11 20:03:47,796 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 [2018-04-11 20:03:47,802 INFO L68 tionRefinementEngine]: Using refinement strategy FixedRefinementStrategy [2018-04-11 20:03:47,829 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-04-11 20:03:47,832 INFO L270 TraceCheckSpWp]: Computing forward predicates... [2018-04-11 20:03:48,129 INFO L134 CoverageAnalysis]: Checked inductivity of 515 backedges. 157 proven. 358 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-04-11 20:03:48,130 INFO L314 TraceCheckSpWp]: Computing backward predicates... [2018-04-11 20:03:48,376 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 [2018-04-11 20:03:48,377 INFO L267 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2018-04-11 20:03:48,379 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. [2018-04-11 20:03:48,379 INFO L202 ElimStorePlain]: Needed 2 recursive calls to eliminate 3 variables, input treesize:26, output treesize:13 [2018-04-11 20:03:48,458 INFO L134 CoverageAnalysis]: Checked inductivity of 515 backedges. 118 proven. 397 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-04-11 20:03:48,479 INFO L320 seRefinementStrategy]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2018-04-11 20:03:48,479 INFO L335 seRefinementStrategy]: Number of different interpolants: perfect sequences [] imperfect sequences [23, 23] total 34 [2018-04-11 20:03:48,479 INFO L442 AbstractCegarLoop]: Interpolant automaton has 35 states [2018-04-11 20:03:48,479 INFO L132 InterpolantAutomaton]: Constructing interpolant automaton starting with 35 interpolants. [2018-04-11 20:03:48,480 INFO L133 InterpolantAutomaton]: CoverageRelationStatistics Valid=174, Invalid=1016, Unknown=0, NotChecked=0, Total=1190 [2018-04-11 20:03:48,480 INFO L87 Difference]: Start difference. First operand 262 states and 278 transitions. Second operand 35 states. [2018-04-11 20:03:50,034 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-04-11 20:03:50,034 INFO L93 Difference]: Finished difference Result 263 states and 278 transitions. [2018-04-11 20:03:50,035 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 40 states. [2018-04-11 20:03:50,035 INFO L78 Accepts]: Start accepts. Automaton has 35 states. Word has length 134 [2018-04-11 20:03:50,035 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-04-11 20:03:50,036 INFO L225 Difference]: With dead ends: 263 [2018-04-11 20:03:50,037 INFO L226 Difference]: Without dead ends: 262 [2018-04-11 20:03:50,038 INFO L567 BasicCegarLoop]: 0 DeclaredPredicates, 301 GetRequests, 224 SyntacticMatches, 11 SemanticMatches, 66 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1311 ImplicationChecksByTransitivity, 1.0s TimeCoverageRelationStatistics Valid=816, Invalid=3740, Unknown=0, NotChecked=0, Total=4556 [2018-04-11 20:03:50,039 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 262 states. [2018-04-11 20:03:50,061 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 262 to 262. [2018-04-11 20:03:50,061 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 262 states. [2018-04-11 20:03:50,063 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 262 states to 262 states and 277 transitions. [2018-04-11 20:03:50,063 INFO L78 Accepts]: Start accepts. Automaton has 262 states and 277 transitions. Word has length 134 [2018-04-11 20:03:50,064 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-04-11 20:03:50,064 INFO L459 AbstractCegarLoop]: Abstraction has 262 states and 277 transitions. [2018-04-11 20:03:50,064 INFO L460 AbstractCegarLoop]: Interpolant automaton has 35 states. [2018-04-11 20:03:50,064 INFO L276 IsEmpty]: Start isEmpty. Operand 262 states and 277 transitions. [2018-04-11 20:03:50,065 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 145 [2018-04-11 20:03:50,065 INFO L347 BasicCegarLoop]: Found error trace [2018-04-11 20:03:50,065 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] [2018-04-11 20:03:50,066 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]=== [2018-04-11 20:03:50,066 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 [2018-04-11 20:03:50,074 INFO L68 tionRefinementEngine]: Using refinement strategy FixedRefinementStrategy [2018-04-11 20:03:50,109 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-04-11 20:03:50,112 INFO L270 TraceCheckSpWp]: Computing forward predicates... [2018-04-11 20:03:50,349 INFO L134 CoverageAnalysis]: Checked inductivity of 621 backedges. 135 proven. 486 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-04-11 20:03:50,349 INFO L314 TraceCheckSpWp]: Computing backward predicates... [2018-04-11 20:03:50,608 INFO L134 CoverageAnalysis]: Checked inductivity of 621 backedges. 135 proven. 486 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-04-11 20:03:50,638 INFO L320 seRefinementStrategy]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2018-04-11 20:03:50,639 INFO L335 seRefinementStrategy]: Number of different interpolants: perfect sequences [] imperfect sequences [29, 29] total 40 [2018-04-11 20:03:50,639 INFO L442 AbstractCegarLoop]: Interpolant automaton has 40 states [2018-04-11 20:03:50,639 INFO L132 InterpolantAutomaton]: Constructing interpolant automaton starting with 40 interpolants. [2018-04-11 20:03:50,639 INFO L133 InterpolantAutomaton]: CoverageRelationStatistics Valid=222, Invalid=1338, Unknown=0, NotChecked=0, Total=1560 [2018-04-11 20:03:50,640 INFO L87 Difference]: Start difference. First operand 262 states and 277 transitions. Second operand 40 states. [2018-04-11 20:03:52,534 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-04-11 20:03:52,534 INFO L93 Difference]: Finished difference Result 560 states and 593 transitions. [2018-04-11 20:03:52,535 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 42 states. [2018-04-11 20:03:52,535 INFO L78 Accepts]: Start accepts. Automaton has 40 states. Word has length 144 [2018-04-11 20:03:52,535 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-04-11 20:03:52,537 INFO L225 Difference]: With dead ends: 560 [2018-04-11 20:03:52,537 INFO L226 Difference]: Without dead ends: 334 [2018-04-11 20:03:52,539 INFO L567 BasicCegarLoop]: 0 DeclaredPredicates, 320 GetRequests, 234 SyntacticMatches, 16 SemanticMatches, 70 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1390 ImplicationChecksByTransitivity, 1.3s TimeCoverageRelationStatistics Valid=887, Invalid=4225, Unknown=0, NotChecked=0, Total=5112 [2018-04-11 20:03:52,539 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 334 states. [2018-04-11 20:03:52,565 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 334 to 300. [2018-04-11 20:03:52,566 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 300 states. [2018-04-11 20:03:52,568 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 300 states to 300 states and 318 transitions. [2018-04-11 20:03:52,568 INFO L78 Accepts]: Start accepts. Automaton has 300 states and 318 transitions. Word has length 144 [2018-04-11 20:03:52,568 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-04-11 20:03:52,569 INFO L459 AbstractCegarLoop]: Abstraction has 300 states and 318 transitions. [2018-04-11 20:03:52,569 INFO L460 AbstractCegarLoop]: Interpolant automaton has 40 states. [2018-04-11 20:03:52,569 INFO L276 IsEmpty]: Start isEmpty. Operand 300 states and 318 transitions. [2018-04-11 20:03:52,570 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 155 [2018-04-11 20:03:52,570 INFO L347 BasicCegarLoop]: Found error trace [2018-04-11 20:03:52,570 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] [2018-04-11 20:03:52,570 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]=== [2018-04-11 20:03:52,571 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 [2018-04-11 20:03:52,579 INFO L68 tionRefinementEngine]: Using refinement strategy FixedRefinementStrategy [2018-04-11 20:03:52,631 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-04-11 20:03:52,637 INFO L270 TraceCheckSpWp]: Computing forward predicates... [2018-04-11 20:03:53,156 INFO L134 CoverageAnalysis]: Checked inductivity of 737 backedges. 219 proven. 518 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-04-11 20:03:53,156 INFO L314 TraceCheckSpWp]: Computing backward predicates... [2018-04-11 20:03:53,482 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 [2018-04-11 20:03:53,483 INFO L267 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2018-04-11 20:03:53,485 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. [2018-04-11 20:03:53,485 INFO L202 ElimStorePlain]: Needed 2 recursive calls to eliminate 3 variables, input treesize:26, output treesize:13 [2018-04-11 20:03:53,591 INFO L134 CoverageAnalysis]: Checked inductivity of 737 backedges. 171 proven. 566 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-04-11 20:03:53,610 INFO L320 seRefinementStrategy]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2018-04-11 20:03:53,610 INFO L335 seRefinementStrategy]: Number of different interpolants: perfect sequences [] imperfect sequences [27, 27] total 40 [2018-04-11 20:03:53,610 INFO L442 AbstractCegarLoop]: Interpolant automaton has 41 states [2018-04-11 20:03:53,611 INFO L132 InterpolantAutomaton]: Constructing interpolant automaton starting with 41 interpolants. [2018-04-11 20:03:53,611 INFO L133 InterpolantAutomaton]: CoverageRelationStatistics Valid=230, Invalid=1410, Unknown=0, NotChecked=0, Total=1640 [2018-04-11 20:03:53,611 INFO L87 Difference]: Start difference. First operand 300 states and 318 transitions. Second operand 41 states. [2018-04-11 20:03:55,318 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-04-11 20:03:55,318 INFO L93 Difference]: Finished difference Result 301 states and 318 transitions. [2018-04-11 20:03:55,319 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 47 states. [2018-04-11 20:03:55,319 INFO L78 Accepts]: Start accepts. Automaton has 41 states. Word has length 154 [2018-04-11 20:03:55,319 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-04-11 20:03:55,320 INFO L225 Difference]: With dead ends: 301 [2018-04-11 20:03:55,320 INFO L226 Difference]: Without dead ends: 300 [2018-04-11 20:03:55,321 INFO L567 BasicCegarLoop]: 0 DeclaredPredicates, 347 GetRequests, 256 SyntacticMatches, 13 SemanticMatches, 78 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1918 ImplicationChecksByTransitivity, 1.4s TimeCoverageRelationStatistics Valid=1091, Invalid=5229, Unknown=0, NotChecked=0, Total=6320 [2018-04-11 20:03:55,322 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 300 states. [2018-04-11 20:03:55,350 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 300 to 300. [2018-04-11 20:03:55,350 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 300 states. [2018-04-11 20:03:55,352 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 300 states to 300 states and 317 transitions. [2018-04-11 20:03:55,352 INFO L78 Accepts]: Start accepts. Automaton has 300 states and 317 transitions. Word has length 154 [2018-04-11 20:03:55,352 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-04-11 20:03:55,352 INFO L459 AbstractCegarLoop]: Abstraction has 300 states and 317 transitions. [2018-04-11 20:03:55,353 INFO L460 AbstractCegarLoop]: Interpolant automaton has 41 states. [2018-04-11 20:03:55,353 INFO L276 IsEmpty]: Start isEmpty. Operand 300 states and 317 transitions. [2018-04-11 20:03:55,354 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 165 [2018-04-11 20:03:55,354 INFO L347 BasicCegarLoop]: Found error trace [2018-04-11 20:03:55,354 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] [2018-04-11 20:03:55,354 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]=== [2018-04-11 20:03:55,355 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 [2018-04-11 20:03:55,367 INFO L68 tionRefinementEngine]: Using refinement strategy FixedRefinementStrategy [2018-04-11 20:03:55,414 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-04-11 20:03:55,418 INFO L270 TraceCheckSpWp]: Computing forward predicates... [2018-04-11 20:03:55,730 INFO L134 CoverageAnalysis]: Checked inductivity of 863 backedges. 191 proven. 672 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-04-11 20:03:55,730 INFO L314 TraceCheckSpWp]: Computing backward predicates... [2018-04-11 20:03:56,031 INFO L134 CoverageAnalysis]: Checked inductivity of 863 backedges. 191 proven. 672 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-04-11 20:03:56,051 INFO L320 seRefinementStrategy]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2018-04-11 20:03:56,051 INFO L335 seRefinementStrategy]: Number of different interpolants: perfect sequences [] imperfect sequences [33, 33] total 46 [2018-04-11 20:03:56,052 INFO L442 AbstractCegarLoop]: Interpolant automaton has 46 states [2018-04-11 20:03:56,052 INFO L132 InterpolantAutomaton]: Constructing interpolant automaton starting with 46 interpolants. [2018-04-11 20:03:56,053 INFO L133 InterpolantAutomaton]: CoverageRelationStatistics Valid=286, Invalid=1784, Unknown=0, NotChecked=0, Total=2070 [2018-04-11 20:03:56,054 INFO L87 Difference]: Start difference. First operand 300 states and 317 transitions. Second operand 46 states. [2018-04-11 20:03:57,010 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-04-11 20:03:57,010 INFO L93 Difference]: Finished difference Result 636 states and 673 transitions. [2018-04-11 20:03:57,010 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 48 states. [2018-04-11 20:03:57,010 INFO L78 Accepts]: Start accepts. Automaton has 46 states. Word has length 164 [2018-04-11 20:03:57,011 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-04-11 20:03:57,012 INFO L225 Difference]: With dead ends: 636 [2018-04-11 20:03:57,012 INFO L226 Difference]: Without dead ends: 372 [2018-04-11 20:03:57,015 INFO L567 BasicCegarLoop]: 0 DeclaredPredicates, 365 GetRequests, 266 SyntacticMatches, 18 SemanticMatches, 81 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1894 ImplicationChecksByTransitivity, 1.0s TimeCoverageRelationStatistics Valid=1156, Invalid=5650, Unknown=0, NotChecked=0, Total=6806 [2018-04-11 20:03:57,015 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 372 states. [2018-04-11 20:03:57,041 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 372 to 338. [2018-04-11 20:03:57,041 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 338 states. [2018-04-11 20:03:57,042 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 338 states to 338 states and 358 transitions. [2018-04-11 20:03:57,042 INFO L78 Accepts]: Start accepts. Automaton has 338 states and 358 transitions. Word has length 164 [2018-04-11 20:03:57,042 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-04-11 20:03:57,042 INFO L459 AbstractCegarLoop]: Abstraction has 338 states and 358 transitions. [2018-04-11 20:03:57,042 INFO L460 AbstractCegarLoop]: Interpolant automaton has 46 states. [2018-04-11 20:03:57,042 INFO L276 IsEmpty]: Start isEmpty. Operand 338 states and 358 transitions. [2018-04-11 20:03:57,043 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 175 [2018-04-11 20:03:57,043 INFO L347 BasicCegarLoop]: Found error trace [2018-04-11 20:03:57,043 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] [2018-04-11 20:03:57,043 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]=== [2018-04-11 20:03:57,043 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 [2018-04-11 20:03:57,049 INFO L68 tionRefinementEngine]: Using refinement strategy FixedRefinementStrategy [2018-04-11 20:03:57,089 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-04-11 20:03:57,093 INFO L270 TraceCheckSpWp]: Computing forward predicates... [2018-04-11 20:03:57,623 INFO L134 CoverageAnalysis]: Checked inductivity of 999 backedges. 291 proven. 708 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-04-11 20:03:57,624 INFO L314 TraceCheckSpWp]: Computing backward predicates... [2018-04-11 20:03:57,986 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 [2018-04-11 20:03:57,986 INFO L267 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2018-04-11 20:03:57,988 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. [2018-04-11 20:03:57,989 INFO L202 ElimStorePlain]: Needed 2 recursive calls to eliminate 3 variables, input treesize:26, output treesize:13 [2018-04-11 20:03:58,132 INFO L134 CoverageAnalysis]: Checked inductivity of 999 backedges. 234 proven. 765 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-04-11 20:03:58,155 INFO L320 seRefinementStrategy]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2018-04-11 20:03:58,155 INFO L335 seRefinementStrategy]: Number of different interpolants: perfect sequences [] imperfect sequences [31, 31] total 46 [2018-04-11 20:03:58,156 INFO L442 AbstractCegarLoop]: Interpolant automaton has 47 states [2018-04-11 20:03:58,156 INFO L132 InterpolantAutomaton]: Constructing interpolant automaton starting with 47 interpolants. [2018-04-11 20:03:58,157 INFO L133 InterpolantAutomaton]: CoverageRelationStatistics Valid=294, Invalid=1868, Unknown=0, NotChecked=0, Total=2162 [2018-04-11 20:03:58,157 INFO L87 Difference]: Start difference. First operand 338 states and 358 transitions. Second operand 47 states. [2018-04-11 20:04:00,079 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-04-11 20:04:00,079 INFO L93 Difference]: Finished difference Result 339 states and 358 transitions. [2018-04-11 20:04:00,079 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 54 states. [2018-04-11 20:04:00,079 INFO L78 Accepts]: Start accepts. Automaton has 47 states. Word has length 174 [2018-04-11 20:04:00,080 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-04-11 20:04:00,081 INFO L225 Difference]: With dead ends: 339 [2018-04-11 20:04:00,081 INFO L226 Difference]: Without dead ends: 338 [2018-04-11 20:04:00,083 INFO L567 BasicCegarLoop]: 0 DeclaredPredicates, 393 GetRequests, 288 SyntacticMatches, 15 SemanticMatches, 90 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2640 ImplicationChecksByTransitivity, 1.6s TimeCoverageRelationStatistics Valid=1406, Invalid=6966, Unknown=0, NotChecked=0, Total=8372 [2018-04-11 20:04:00,083 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 338 states. [2018-04-11 20:04:00,100 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 338 to 338. [2018-04-11 20:04:00,100 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 338 states. [2018-04-11 20:04:00,101 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 338 states to 338 states and 357 transitions. [2018-04-11 20:04:00,101 INFO L78 Accepts]: Start accepts. Automaton has 338 states and 357 transitions. Word has length 174 [2018-04-11 20:04:00,102 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-04-11 20:04:00,102 INFO L459 AbstractCegarLoop]: Abstraction has 338 states and 357 transitions. [2018-04-11 20:04:00,102 INFO L460 AbstractCegarLoop]: Interpolant automaton has 47 states. [2018-04-11 20:04:00,102 INFO L276 IsEmpty]: Start isEmpty. Operand 338 states and 357 transitions. [2018-04-11 20:04:00,103 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 185 [2018-04-11 20:04:00,103 INFO L347 BasicCegarLoop]: Found error trace [2018-04-11 20:04:00,103 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] [2018-04-11 20:04:00,103 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]=== [2018-04-11 20:04:00,103 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 [2018-04-11 20:04:00,113 INFO L68 tionRefinementEngine]: Using refinement strategy FixedRefinementStrategy [2018-04-11 20:04:00,175 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-04-11 20:04:00,181 INFO L270 TraceCheckSpWp]: Computing forward predicates... [2018-04-11 20:04:00,662 INFO L134 CoverageAnalysis]: Checked inductivity of 1145 backedges. 257 proven. 888 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-04-11 20:04:00,662 INFO L314 TraceCheckSpWp]: Computing backward predicates... [2018-04-11 20:04:01,043 INFO L134 CoverageAnalysis]: Checked inductivity of 1145 backedges. 257 proven. 888 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-04-11 20:04:01,063 INFO L320 seRefinementStrategy]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2018-04-11 20:04:01,063 INFO L335 seRefinementStrategy]: Number of different interpolants: perfect sequences [] imperfect sequences [37, 37] total 52 [2018-04-11 20:04:01,063 INFO L442 AbstractCegarLoop]: Interpolant automaton has 52 states [2018-04-11 20:04:01,064 INFO L132 InterpolantAutomaton]: Constructing interpolant automaton starting with 52 interpolants. [2018-04-11 20:04:01,064 INFO L133 InterpolantAutomaton]: CoverageRelationStatistics Valid=358, Invalid=2294, Unknown=0, NotChecked=0, Total=2652 [2018-04-11 20:04:01,064 INFO L87 Difference]: Start difference. First operand 338 states and 357 transitions. Second operand 52 states. [2018-04-11 20:04:02,203 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-04-11 20:04:02,203 INFO L93 Difference]: Finished difference Result 712 states and 753 transitions. [2018-04-11 20:04:02,204 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 54 states. [2018-04-11 20:04:02,204 INFO L78 Accepts]: Start accepts. Automaton has 52 states. Word has length 184 [2018-04-11 20:04:02,204 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-04-11 20:04:02,206 INFO L225 Difference]: With dead ends: 712 [2018-04-11 20:04:02,206 INFO L226 Difference]: Without dead ends: 410 [2018-04-11 20:04:02,208 INFO L567 BasicCegarLoop]: 0 DeclaredPredicates, 410 GetRequests, 298 SyntacticMatches, 20 SemanticMatches, 92 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2476 ImplicationChecksByTransitivity, 1.2s TimeCoverageRelationStatistics Valid=1460, Invalid=7282, Unknown=0, NotChecked=0, Total=8742 [2018-04-11 20:04:02,208 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 410 states. [2018-04-11 20:04:02,234 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 410 to 376. [2018-04-11 20:04:02,234 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 376 states. [2018-04-11 20:04:02,235 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 376 states to 376 states and 398 transitions. [2018-04-11 20:04:02,236 INFO L78 Accepts]: Start accepts. Automaton has 376 states and 398 transitions. Word has length 184 [2018-04-11 20:04:02,236 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-04-11 20:04:02,236 INFO L459 AbstractCegarLoop]: Abstraction has 376 states and 398 transitions. [2018-04-11 20:04:02,236 INFO L460 AbstractCegarLoop]: Interpolant automaton has 52 states. [2018-04-11 20:04:02,236 INFO L276 IsEmpty]: Start isEmpty. Operand 376 states and 398 transitions. [2018-04-11 20:04:02,237 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 195 [2018-04-11 20:04:02,237 INFO L347 BasicCegarLoop]: Found error trace [2018-04-11 20:04:02,238 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] [2018-04-11 20:04:02,238 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]=== [2018-04-11 20:04:02,238 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 [2018-04-11 20:04:02,244 INFO L68 tionRefinementEngine]: Using refinement strategy FixedRefinementStrategy [2018-04-11 20:04:02,285 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-04-11 20:04:02,290 INFO L270 TraceCheckSpWp]: Computing forward predicates... [2018-04-11 20:04:02,836 INFO L134 CoverageAnalysis]: Checked inductivity of 1301 backedges. 373 proven. 928 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-04-11 20:04:02,836 INFO L314 TraceCheckSpWp]: Computing backward predicates... [2018-04-11 20:04:03,281 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 [2018-04-11 20:04:03,282 INFO L267 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2018-04-11 20:04:03,284 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. [2018-04-11 20:04:03,284 INFO L202 ElimStorePlain]: Needed 2 recursive calls to eliminate 3 variables, input treesize:26, output treesize:13 [2018-04-11 20:04:03,444 INFO L134 CoverageAnalysis]: Checked inductivity of 1301 backedges. 307 proven. 994 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-04-11 20:04:03,463 INFO L320 seRefinementStrategy]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2018-04-11 20:04:03,463 INFO L335 seRefinementStrategy]: Number of different interpolants: perfect sequences [] imperfect sequences [35, 35] total 52 [2018-04-11 20:04:03,464 INFO L442 AbstractCegarLoop]: Interpolant automaton has 53 states [2018-04-11 20:04:03,464 INFO L132 InterpolantAutomaton]: Constructing interpolant automaton starting with 53 interpolants. [2018-04-11 20:04:03,464 INFO L133 InterpolantAutomaton]: CoverageRelationStatistics Valid=366, Invalid=2390, Unknown=0, NotChecked=0, Total=2756 [2018-04-11 20:04:03,464 INFO L87 Difference]: Start difference. First operand 376 states and 398 transitions. Second operand 53 states. [2018-04-11 20:04:05,427 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-04-11 20:04:05,427 INFO L93 Difference]: Finished difference Result 377 states and 398 transitions. [2018-04-11 20:04:05,427 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 61 states. [2018-04-11 20:04:05,427 INFO L78 Accepts]: Start accepts. Automaton has 53 states. Word has length 194 [2018-04-11 20:04:05,428 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-04-11 20:04:05,429 INFO L225 Difference]: With dead ends: 377 [2018-04-11 20:04:05,429 INFO L226 Difference]: Without dead ends: 376 [2018-04-11 20:04:05,431 INFO L567 BasicCegarLoop]: 0 DeclaredPredicates, 439 GetRequests, 320 SyntacticMatches, 17 SemanticMatches, 102 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3477 ImplicationChecksByTransitivity, 1.8s TimeCoverageRelationStatistics Valid=1761, Invalid=8951, Unknown=0, NotChecked=0, Total=10712 [2018-04-11 20:04:05,431 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 376 states. [2018-04-11 20:04:05,462 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 376 to 376. [2018-04-11 20:04:05,462 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 376 states. [2018-04-11 20:04:05,463 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 376 states to 376 states and 397 transitions. [2018-04-11 20:04:05,464 INFO L78 Accepts]: Start accepts. Automaton has 376 states and 397 transitions. Word has length 194 [2018-04-11 20:04:05,464 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-04-11 20:04:05,464 INFO L459 AbstractCegarLoop]: Abstraction has 376 states and 397 transitions. [2018-04-11 20:04:05,464 INFO L460 AbstractCegarLoop]: Interpolant automaton has 53 states. [2018-04-11 20:04:05,465 INFO L276 IsEmpty]: Start isEmpty. Operand 376 states and 397 transitions. [2018-04-11 20:04:05,466 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 205 [2018-04-11 20:04:05,466 INFO L347 BasicCegarLoop]: Found error trace [2018-04-11 20:04:05,466 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] [2018-04-11 20:04:05,466 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]=== [2018-04-11 20:04:05,467 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 [2018-04-11 20:04:05,473 INFO L68 tionRefinementEngine]: Using refinement strategy FixedRefinementStrategy [2018-04-11 20:04:05,516 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-04-11 20:04:05,520 INFO L270 TraceCheckSpWp]: Computing forward predicates... [2018-04-11 20:04:06,117 INFO L134 CoverageAnalysis]: Checked inductivity of 1467 backedges. 333 proven. 1134 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-04-11 20:04:06,118 INFO L314 TraceCheckSpWp]: Computing backward predicates... [2018-04-11 20:04:06,601 INFO L134 CoverageAnalysis]: Checked inductivity of 1467 backedges. 333 proven. 1134 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-04-11 20:04:06,620 INFO L320 seRefinementStrategy]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2018-04-11 20:04:06,621 INFO L335 seRefinementStrategy]: Number of different interpolants: perfect sequences [] imperfect sequences [41, 41] total 58 [2018-04-11 20:04:06,621 INFO L442 AbstractCegarLoop]: Interpolant automaton has 58 states [2018-04-11 20:04:06,621 INFO L132 InterpolantAutomaton]: Constructing interpolant automaton starting with 58 interpolants. [2018-04-11 20:04:06,622 INFO L133 InterpolantAutomaton]: CoverageRelationStatistics Valid=438, Invalid=2868, Unknown=0, NotChecked=0, Total=3306 [2018-04-11 20:04:06,622 INFO L87 Difference]: Start difference. First operand 376 states and 397 transitions. Second operand 58 states. [2018-04-11 20:04:07,924 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-04-11 20:04:07,924 INFO L93 Difference]: Finished difference Result 788 states and 833 transitions. [2018-04-11 20:04:07,924 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 60 states. [2018-04-11 20:04:07,925 INFO L78 Accepts]: Start accepts. Automaton has 58 states. Word has length 204 [2018-04-11 20:04:07,925 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-04-11 20:04:07,926 INFO L225 Difference]: With dead ends: 788 [2018-04-11 20:04:07,926 INFO L226 Difference]: Without dead ends: 448 [2018-04-11 20:04:07,927 INFO L567 BasicCegarLoop]: 0 DeclaredPredicates, 455 GetRequests, 330 SyntacticMatches, 22 SemanticMatches, 103 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3136 ImplicationChecksByTransitivity, 1.6s TimeCoverageRelationStatistics Valid=1799, Invalid=9121, Unknown=0, NotChecked=0, Total=10920 [2018-04-11 20:04:07,928 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 448 states. [2018-04-11 20:04:07,949 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 448 to 414. [2018-04-11 20:04:07,949 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 414 states. [2018-04-11 20:04:07,950 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 414 states to 414 states and 438 transitions. [2018-04-11 20:04:07,950 INFO L78 Accepts]: Start accepts. Automaton has 414 states and 438 transitions. Word has length 204 [2018-04-11 20:04:07,950 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-04-11 20:04:07,950 INFO L459 AbstractCegarLoop]: Abstraction has 414 states and 438 transitions. [2018-04-11 20:04:07,950 INFO L460 AbstractCegarLoop]: Interpolant automaton has 58 states. [2018-04-11 20:04:07,950 INFO L276 IsEmpty]: Start isEmpty. Operand 414 states and 438 transitions. [2018-04-11 20:04:07,951 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 215 [2018-04-11 20:04:07,951 INFO L347 BasicCegarLoop]: Found error trace [2018-04-11 20:04:07,951 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] [2018-04-11 20:04:07,951 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]=== [2018-04-11 20:04:07,952 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 [2018-04-11 20:04:07,957 INFO L68 tionRefinementEngine]: Using refinement strategy FixedRefinementStrategy [2018-04-11 20:04:07,999 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-04-11 20:04:08,003 INFO L270 TraceCheckSpWp]: Computing forward predicates... [2018-04-11 20:04:08,601 INFO L134 CoverageAnalysis]: Checked inductivity of 1643 backedges. 465 proven. 1178 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-04-11 20:04:08,601 INFO L314 TraceCheckSpWp]: Computing backward predicates... [2018-04-11 20:04:09,157 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 13 treesize of output 11 [2018-04-11 20:04:09,158 INFO L267 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2018-04-11 20:04:09,161 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. [2018-04-11 20:04:09,161 INFO L202 ElimStorePlain]: Needed 2 recursive calls to eliminate 3 variables, input treesize:26, output treesize:13 [2018-04-11 20:04:09,429 INFO L134 CoverageAnalysis]: Checked inductivity of 1643 backedges. 390 proven. 1253 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-04-11 20:04:09,449 INFO L320 seRefinementStrategy]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2018-04-11 20:04:09,449 INFO L335 seRefinementStrategy]: Number of different interpolants: perfect sequences [] imperfect sequences [39, 39] total 58 [2018-04-11 20:04:09,449 INFO L442 AbstractCegarLoop]: Interpolant automaton has 59 states [2018-04-11 20:04:09,450 INFO L132 InterpolantAutomaton]: Constructing interpolant automaton starting with 59 interpolants. [2018-04-11 20:04:09,450 INFO L133 InterpolantAutomaton]: CoverageRelationStatistics Valid=446, Invalid=2976, Unknown=0, NotChecked=0, Total=3422 [2018-04-11 20:04:09,450 INFO L87 Difference]: Start difference. First operand 414 states and 438 transitions. Second operand 59 states. [2018-04-11 20:04:11,690 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-04-11 20:04:11,690 INFO L93 Difference]: Finished difference Result 415 states and 438 transitions. [2018-04-11 20:04:11,690 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 68 states. [2018-04-11 20:04:11,690 INFO L78 Accepts]: Start accepts. Automaton has 59 states. Word has length 214 [2018-04-11 20:04:11,691 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-04-11 20:04:11,692 INFO L225 Difference]: With dead ends: 415 [2018-04-11 20:04:11,692 INFO L226 Difference]: Without dead ends: 414 [2018-04-11 20:04:11,694 INFO L567 BasicCegarLoop]: 0 DeclaredPredicates, 485 GetRequests, 352 SyntacticMatches, 19 SemanticMatches, 114 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 4429 ImplicationChecksByTransitivity, 2.2s TimeCoverageRelationStatistics Valid=2156, Invalid=11184, Unknown=0, NotChecked=0, Total=13340 [2018-04-11 20:04:11,694 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 414 states. [2018-04-11 20:04:11,717 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 414 to 414. [2018-04-11 20:04:11,717 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 414 states. [2018-04-11 20:04:11,719 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 414 states to 414 states and 437 transitions. [2018-04-11 20:04:11,719 INFO L78 Accepts]: Start accepts. Automaton has 414 states and 437 transitions. Word has length 214 [2018-04-11 20:04:11,720 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-04-11 20:04:11,720 INFO L459 AbstractCegarLoop]: Abstraction has 414 states and 437 transitions. [2018-04-11 20:04:11,720 INFO L460 AbstractCegarLoop]: Interpolant automaton has 59 states. [2018-04-11 20:04:11,720 INFO L276 IsEmpty]: Start isEmpty. Operand 414 states and 437 transitions. [2018-04-11 20:04:11,721 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 225 [2018-04-11 20:04:11,722 INFO L347 BasicCegarLoop]: Found error trace [2018-04-11 20:04:11,722 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] [2018-04-11 20:04:11,722 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]=== [2018-04-11 20:04:11,722 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 [2018-04-11 20:04:11,732 INFO L68 tionRefinementEngine]: Using refinement strategy FixedRefinementStrategy [2018-04-11 20:04:11,806 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-04-11 20:04:11,812 INFO L270 TraceCheckSpWp]: Computing forward predicates... [2018-04-11 20:04:12,330 INFO L134 CoverageAnalysis]: Checked inductivity of 1829 backedges. 419 proven. 1410 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-04-11 20:04:12,330 INFO L314 TraceCheckSpWp]: Computing backward predicates... [2018-04-11 20:04:12,911 INFO L134 CoverageAnalysis]: Checked inductivity of 1829 backedges. 419 proven. 1410 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-04-11 20:04:12,930 INFO L320 seRefinementStrategy]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2018-04-11 20:04:12,930 INFO L335 seRefinementStrategy]: Number of different interpolants: perfect sequences [] imperfect sequences [45, 45] total 64 [2018-04-11 20:04:12,948 INFO L442 AbstractCegarLoop]: Interpolant automaton has 64 states [2018-04-11 20:04:12,948 INFO L132 InterpolantAutomaton]: Constructing interpolant automaton starting with 64 interpolants. [2018-04-11 20:04:12,948 INFO L133 InterpolantAutomaton]: CoverageRelationStatistics Valid=526, Invalid=3506, Unknown=0, NotChecked=0, Total=4032 [2018-04-11 20:04:12,949 INFO L87 Difference]: Start difference. First operand 414 states and 437 transitions. Second operand 64 states. [2018-04-11 20:04:14,396 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-04-11 20:04:14,396 INFO L93 Difference]: Finished difference Result 864 states and 913 transitions. [2018-04-11 20:04:14,396 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 66 states. [2018-04-11 20:04:14,397 INFO L78 Accepts]: Start accepts. Automaton has 64 states. Word has length 224 [2018-04-11 20:04:14,397 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-04-11 20:04:14,398 INFO L225 Difference]: With dead ends: 864 [2018-04-11 20:04:14,398 INFO L226 Difference]: Without dead ends: 486 [2018-04-11 20:04:14,399 INFO L567 BasicCegarLoop]: 0 DeclaredPredicates, 500 GetRequests, 362 SyntacticMatches, 24 SemanticMatches, 114 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3874 ImplicationChecksByTransitivity, 1.7s TimeCoverageRelationStatistics Valid=2173, Invalid=11167, Unknown=0, NotChecked=0, Total=13340 [2018-04-11 20:04:14,400 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 486 states. [2018-04-11 20:04:14,427 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 486 to 452. [2018-04-11 20:04:14,427 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 452 states. [2018-04-11 20:04:14,429 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 452 states to 452 states and 478 transitions. [2018-04-11 20:04:14,429 INFO L78 Accepts]: Start accepts. Automaton has 452 states and 478 transitions. Word has length 224 [2018-04-11 20:04:14,430 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-04-11 20:04:14,430 INFO L459 AbstractCegarLoop]: Abstraction has 452 states and 478 transitions. [2018-04-11 20:04:14,430 INFO L460 AbstractCegarLoop]: Interpolant automaton has 64 states. [2018-04-11 20:04:14,430 INFO L276 IsEmpty]: Start isEmpty. Operand 452 states and 478 transitions. [2018-04-11 20:04:14,432 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 235 [2018-04-11 20:04:14,432 INFO L347 BasicCegarLoop]: Found error trace [2018-04-11 20:04:14,432 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] [2018-04-11 20:04:14,432 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]=== [2018-04-11 20:04:14,432 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 [2018-04-11 20:04:14,439 INFO L68 tionRefinementEngine]: Using refinement strategy FixedRefinementStrategy [2018-04-11 20:04:14,498 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-04-11 20:04:14,503 INFO L270 TraceCheckSpWp]: Computing forward predicates... [2018-04-11 20:04:15,380 INFO L134 CoverageAnalysis]: Checked inductivity of 2025 backedges. 567 proven. 1458 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-04-11 20:04:15,381 INFO L314 TraceCheckSpWp]: Computing backward predicates... [2018-04-11 20:04:16,031 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 [2018-04-11 20:04:16,032 INFO L267 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2018-04-11 20:04:16,034 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. [2018-04-11 20:04:16,034 INFO L202 ElimStorePlain]: Needed 2 recursive calls to eliminate 3 variables, input treesize:26, output treesize:13 [2018-04-11 20:04:16,255 INFO L134 CoverageAnalysis]: Checked inductivity of 2025 backedges. 483 proven. 1542 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-04-11 20:04:16,273 INFO L320 seRefinementStrategy]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2018-04-11 20:04:16,274 INFO L335 seRefinementStrategy]: Number of different interpolants: perfect sequences [] imperfect sequences [43, 43] total 64 [2018-04-11 20:04:16,274 INFO L442 AbstractCegarLoop]: Interpolant automaton has 65 states [2018-04-11 20:04:16,274 INFO L132 InterpolantAutomaton]: Constructing interpolant automaton starting with 65 interpolants. [2018-04-11 20:04:16,275 INFO L133 InterpolantAutomaton]: CoverageRelationStatistics Valid=534, Invalid=3626, Unknown=0, NotChecked=0, Total=4160 [2018-04-11 20:04:16,275 INFO L87 Difference]: Start difference. First operand 452 states and 478 transitions. Second operand 65 states. [2018-04-11 20:04:19,178 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-04-11 20:04:19,178 INFO L93 Difference]: Finished difference Result 453 states and 478 transitions. [2018-04-11 20:04:19,178 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 75 states. [2018-04-11 20:04:19,178 INFO L78 Accepts]: Start accepts. Automaton has 65 states. Word has length 234 [2018-04-11 20:04:19,179 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-04-11 20:04:19,180 INFO L225 Difference]: With dead ends: 453 [2018-04-11 20:04:19,180 INFO L226 Difference]: Without dead ends: 452 [2018-04-11 20:04:19,181 INFO L567 BasicCegarLoop]: 0 DeclaredPredicates, 531 GetRequests, 384 SyntacticMatches, 21 SemanticMatches, 126 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 5496 ImplicationChecksByTransitivity, 2.6s TimeCoverageRelationStatistics Valid=2591, Invalid=13665, Unknown=0, NotChecked=0, Total=16256 [2018-04-11 20:04:19,181 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 452 states. [2018-04-11 20:04:19,204 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 452 to 452. [2018-04-11 20:04:19,204 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 452 states. [2018-04-11 20:04:19,205 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 452 states to 452 states and 477 transitions. [2018-04-11 20:04:19,205 INFO L78 Accepts]: Start accepts. Automaton has 452 states and 477 transitions. Word has length 234 [2018-04-11 20:04:19,205 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-04-11 20:04:19,205 INFO L459 AbstractCegarLoop]: Abstraction has 452 states and 477 transitions. [2018-04-11 20:04:19,205 INFO L460 AbstractCegarLoop]: Interpolant automaton has 65 states. [2018-04-11 20:04:19,205 INFO L276 IsEmpty]: Start isEmpty. Operand 452 states and 477 transitions. [2018-04-11 20:04:19,206 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 245 [2018-04-11 20:04:19,206 INFO L347 BasicCegarLoop]: Found error trace [2018-04-11 20:04:19,207 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] [2018-04-11 20:04:19,207 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]=== [2018-04-11 20:04:19,207 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 [2018-04-11 20:04:19,225 INFO L68 tionRefinementEngine]: Using refinement strategy FixedRefinementStrategy [2018-04-11 20:04:19,281 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-04-11 20:04:19,287 INFO L270 TraceCheckSpWp]: Computing forward predicates... [2018-04-11 20:04:19,899 INFO L134 CoverageAnalysis]: Checked inductivity of 2231 backedges. 515 proven. 1716 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-04-11 20:04:19,899 INFO L314 TraceCheckSpWp]: Computing backward predicates... [2018-04-11 20:04:20,518 INFO L134 CoverageAnalysis]: Checked inductivity of 2231 backedges. 515 proven. 1716 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-04-11 20:04:20,537 INFO L320 seRefinementStrategy]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2018-04-11 20:04:20,537 INFO L335 seRefinementStrategy]: Number of different interpolants: perfect sequences [] imperfect sequences [49, 49] total 70 [2018-04-11 20:04:20,538 INFO L442 AbstractCegarLoop]: Interpolant automaton has 70 states [2018-04-11 20:04:20,538 INFO L132 InterpolantAutomaton]: Constructing interpolant automaton starting with 70 interpolants. [2018-04-11 20:04:20,538 INFO L133 InterpolantAutomaton]: CoverageRelationStatistics Valid=622, Invalid=4208, Unknown=0, NotChecked=0, Total=4830 [2018-04-11 20:04:20,538 INFO L87 Difference]: Start difference. First operand 452 states and 477 transitions. Second operand 70 states. [2018-04-11 20:04:22,114 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-04-11 20:04:22,114 INFO L93 Difference]: Finished difference Result 940 states and 993 transitions. [2018-04-11 20:04:22,114 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 72 states. [2018-04-11 20:04:22,114 INFO L78 Accepts]: Start accepts. Automaton has 70 states. Word has length 244 [2018-04-11 20:04:22,114 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-04-11 20:04:22,116 INFO L225 Difference]: With dead ends: 940 [2018-04-11 20:04:22,116 INFO L226 Difference]: Without dead ends: 524 [2018-04-11 20:04:22,117 INFO L567 BasicCegarLoop]: 0 DeclaredPredicates, 545 GetRequests, 394 SyntacticMatches, 26 SemanticMatches, 125 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 4690 ImplicationChecksByTransitivity, 1.9s TimeCoverageRelationStatistics Valid=2582, Invalid=13420, Unknown=0, NotChecked=0, Total=16002 [2018-04-11 20:04:22,117 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 524 states. [2018-04-11 20:04:22,141 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 524 to 490. [2018-04-11 20:04:22,141 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 490 states. [2018-04-11 20:04:22,142 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 490 states to 490 states and 518 transitions. [2018-04-11 20:04:22,142 INFO L78 Accepts]: Start accepts. Automaton has 490 states and 518 transitions. Word has length 244 [2018-04-11 20:04:22,142 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-04-11 20:04:22,142 INFO L459 AbstractCegarLoop]: Abstraction has 490 states and 518 transitions. [2018-04-11 20:04:22,142 INFO L460 AbstractCegarLoop]: Interpolant automaton has 70 states. [2018-04-11 20:04:22,143 INFO L276 IsEmpty]: Start isEmpty. Operand 490 states and 518 transitions. [2018-04-11 20:04:22,144 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 255 [2018-04-11 20:04:22,144 INFO L347 BasicCegarLoop]: Found error trace [2018-04-11 20:04:22,144 INFO L355 BasicCegarLoop]: trace histogram [24, 23, 23, 22, 22, 22, 22, 22, 22, 22, 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] [2018-04-11 20:04:22,144 INFO L408 AbstractCegarLoop]: === Iteration 29 === [__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]=== [2018-04-11 20:04:22,144 INFO L82 PathProgramCache]: Analyzing trace with hash -532450129, now seen corresponding path program 21 times No working directory specified, using /storage/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 30 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 30 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2018-04-11 20:04:22,150 INFO L68 tionRefinementEngine]: Using refinement strategy FixedRefinementStrategy [2018-04-11 20:04:22,204 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-04-11 20:04:22,208 INFO L270 TraceCheckSpWp]: Computing forward predicates... [2018-04-11 20:04:23,010 INFO L134 CoverageAnalysis]: Checked inductivity of 2447 backedges. 679 proven. 1768 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-04-11 20:04:23,010 INFO L314 TraceCheckSpWp]: Computing backward predicates... [2018-04-11 20:04:23,800 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 [2018-04-11 20:04:23,800 INFO L267 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2018-04-11 20:04:23,802 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. [2018-04-11 20:04:23,803 INFO L202 ElimStorePlain]: Needed 2 recursive calls to eliminate 3 variables, input treesize:26, output treesize:13 [2018-04-11 20:04:24,079 INFO L134 CoverageAnalysis]: Checked inductivity of 2447 backedges. 586 proven. 1861 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-04-11 20:04:24,108 INFO L320 seRefinementStrategy]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2018-04-11 20:04:24,109 INFO L335 seRefinementStrategy]: Number of different interpolants: perfect sequences [] imperfect sequences [47, 47] total 70 [2018-04-11 20:04:24,109 INFO L442 AbstractCegarLoop]: Interpolant automaton has 71 states [2018-04-11 20:04:24,110 INFO L132 InterpolantAutomaton]: Constructing interpolant automaton starting with 71 interpolants. [2018-04-11 20:04:24,110 INFO L133 InterpolantAutomaton]: CoverageRelationStatistics Valid=630, Invalid=4340, Unknown=0, NotChecked=0, Total=4970 [2018-04-11 20:04:24,110 INFO L87 Difference]: Start difference. First operand 490 states and 518 transitions. Second operand 71 states. [2018-04-11 20:04:27,542 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-04-11 20:04:27,542 INFO L93 Difference]: Finished difference Result 491 states and 518 transitions. [2018-04-11 20:04:27,542 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 82 states. [2018-04-11 20:04:27,542 INFO L78 Accepts]: Start accepts. Automaton has 71 states. Word has length 254 [2018-04-11 20:04:27,543 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-04-11 20:04:27,544 INFO L225 Difference]: With dead ends: 491 [2018-04-11 20:04:27,544 INFO L226 Difference]: Without dead ends: 490 [2018-04-11 20:04:27,545 INFO L567 BasicCegarLoop]: 0 DeclaredPredicates, 577 GetRequests, 416 SyntacticMatches, 23 SemanticMatches, 138 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 6678 ImplicationChecksByTransitivity, 2.9s TimeCoverageRelationStatistics Valid=3066, Invalid=16394, Unknown=0, NotChecked=0, Total=19460 [2018-04-11 20:04:27,545 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 490 states. [2018-04-11 20:04:27,577 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 490 to 490. [2018-04-11 20:04:27,578 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 490 states. [2018-04-11 20:04:27,578 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 490 states to 490 states and 517 transitions. [2018-04-11 20:04:27,578 INFO L78 Accepts]: Start accepts. Automaton has 490 states and 517 transitions. Word has length 254 [2018-04-11 20:04:27,579 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-04-11 20:04:27,579 INFO L459 AbstractCegarLoop]: Abstraction has 490 states and 517 transitions. [2018-04-11 20:04:27,579 INFO L460 AbstractCegarLoop]: Interpolant automaton has 71 states. [2018-04-11 20:04:27,579 INFO L276 IsEmpty]: Start isEmpty. Operand 490 states and 517 transitions. [2018-04-11 20:04:27,580 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 265 [2018-04-11 20:04:27,580 INFO L347 BasicCegarLoop]: Found error trace [2018-04-11 20:04:27,580 INFO L355 BasicCegarLoop]: trace histogram [25, 24, 24, 23, 23, 23, 23, 23, 23, 23, 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] [2018-04-11 20:04:27,580 INFO L408 AbstractCegarLoop]: === Iteration 30 === [__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]=== [2018-04-11 20:04:27,580 INFO L82 PathProgramCache]: Analyzing trace with hash 427831835, now seen corresponding path program 22 times No working directory specified, using /storage/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 31 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 31 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2018-04-11 20:04:27,586 INFO L68 tionRefinementEngine]: Using refinement strategy FixedRefinementStrategy [2018-04-11 20:04:27,636 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-04-11 20:04:27,640 INFO L270 TraceCheckSpWp]: Computing forward predicates... [2018-04-11 20:04:28,276 INFO L134 CoverageAnalysis]: Checked inductivity of 2673 backedges. 621 proven. 2052 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-04-11 20:04:28,276 INFO L314 TraceCheckSpWp]: Computing backward predicates... [2018-04-11 20:04:29,004 INFO L134 CoverageAnalysis]: Checked inductivity of 2673 backedges. 621 proven. 2052 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-04-11 20:04:29,023 INFO L320 seRefinementStrategy]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2018-04-11 20:04:29,023 INFO L335 seRefinementStrategy]: Number of different interpolants: perfect sequences [] imperfect sequences [53, 53] total 76 [2018-04-11 20:04:29,024 INFO L442 AbstractCegarLoop]: Interpolant automaton has 76 states [2018-04-11 20:04:29,024 INFO L132 InterpolantAutomaton]: Constructing interpolant automaton starting with 76 interpolants. [2018-04-11 20:04:29,024 INFO L133 InterpolantAutomaton]: CoverageRelationStatistics Valid=726, Invalid=4974, Unknown=0, NotChecked=0, Total=5700 [2018-04-11 20:04:29,025 INFO L87 Difference]: Start difference. First operand 490 states and 517 transitions. Second operand 76 states. [2018-04-11 20:04:30,893 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-04-11 20:04:30,894 INFO L93 Difference]: Finished difference Result 1016 states and 1073 transitions. [2018-04-11 20:04:30,894 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 78 states. [2018-04-11 20:04:30,894 INFO L78 Accepts]: Start accepts. Automaton has 76 states. Word has length 264 [2018-04-11 20:04:30,894 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-04-11 20:04:30,895 INFO L225 Difference]: With dead ends: 1016 [2018-04-11 20:04:30,896 INFO L226 Difference]: Without dead ends: 562 [2018-04-11 20:04:30,897 INFO L567 BasicCegarLoop]: 0 DeclaredPredicates, 590 GetRequests, 426 SyntacticMatches, 28 SemanticMatches, 136 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 5584 ImplicationChecksByTransitivity, 2.2s TimeCoverageRelationStatistics Valid=3026, Invalid=15880, Unknown=0, NotChecked=0, Total=18906 [2018-04-11 20:04:30,897 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 562 states. [2018-04-11 20:04:30,923 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 562 to 528. [2018-04-11 20:04:30,923 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 528 states. [2018-04-11 20:04:30,924 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 528 states to 528 states and 558 transitions. [2018-04-11 20:04:30,924 INFO L78 Accepts]: Start accepts. Automaton has 528 states and 558 transitions. Word has length 264 [2018-04-11 20:04:30,924 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-04-11 20:04:30,924 INFO L459 AbstractCegarLoop]: Abstraction has 528 states and 558 transitions. [2018-04-11 20:04:30,924 INFO L460 AbstractCegarLoop]: Interpolant automaton has 76 states. [2018-04-11 20:04:30,924 INFO L276 IsEmpty]: Start isEmpty. Operand 528 states and 558 transitions. [2018-04-11 20:04:30,926 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 275 [2018-04-11 20:04:30,926 INFO L347 BasicCegarLoop]: Found error trace [2018-04-11 20:04:30,926 INFO L355 BasicCegarLoop]: trace histogram [26, 25, 25, 24, 24, 24, 24, 24, 24, 24, 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] [2018-04-11 20:04:30,926 INFO L408 AbstractCegarLoop]: === Iteration 31 === [__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]=== [2018-04-11 20:04:30,927 INFO L82 PathProgramCache]: Analyzing trace with hash 1654083079, now seen corresponding path program 23 times No working directory specified, using /storage/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 32 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 32 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2018-04-11 20:04:30,934 INFO L68 tionRefinementEngine]: Using refinement strategy FixedRefinementStrategy [2018-04-11 20:04:30,986 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-04-11 20:04:30,990 INFO L270 TraceCheckSpWp]: Computing forward predicates... [2018-04-11 20:04:31,919 INFO L134 CoverageAnalysis]: Checked inductivity of 2909 backedges. 801 proven. 2108 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-04-11 20:04:31,919 INFO L314 TraceCheckSpWp]: Computing backward predicates... [2018-04-11 20:04:32,697 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 [2018-04-11 20:04:32,697 INFO L267 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2018-04-11 20:04:32,717 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. [2018-04-11 20:04:32,717 INFO L202 ElimStorePlain]: Needed 2 recursive calls to eliminate 3 variables, input treesize:26, output treesize:13 [2018-04-11 20:04:33,040 INFO L134 CoverageAnalysis]: Checked inductivity of 2909 backedges. 699 proven. 2210 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-04-11 20:04:33,060 INFO L320 seRefinementStrategy]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2018-04-11 20:04:33,060 INFO L335 seRefinementStrategy]: Number of different interpolants: perfect sequences [] imperfect sequences [51, 51] total 76 [2018-04-11 20:04:33,060 INFO L442 AbstractCegarLoop]: Interpolant automaton has 77 states [2018-04-11 20:04:33,060 INFO L132 InterpolantAutomaton]: Constructing interpolant automaton starting with 77 interpolants. [2018-04-11 20:04:33,061 INFO L133 InterpolantAutomaton]: CoverageRelationStatistics Valid=734, Invalid=5118, Unknown=0, NotChecked=0, Total=5852 [2018-04-11 20:04:33,061 INFO L87 Difference]: Start difference. First operand 528 states and 558 transitions. Second operand 77 states. [2018-04-11 20:04:37,161 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-04-11 20:04:37,162 INFO L93 Difference]: Finished difference Result 529 states and 558 transitions. [2018-04-11 20:04:37,162 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 89 states. [2018-04-11 20:04:37,162 INFO L78 Accepts]: Start accepts. Automaton has 77 states. Word has length 274 [2018-04-11 20:04:37,162 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-04-11 20:04:37,163 INFO L225 Difference]: With dead ends: 529 [2018-04-11 20:04:37,163 INFO L226 Difference]: Without dead ends: 528 [2018-04-11 20:04:37,165 INFO L567 BasicCegarLoop]: 0 DeclaredPredicates, 623 GetRequests, 448 SyntacticMatches, 25 SemanticMatches, 150 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 7975 ImplicationChecksByTransitivity, 3.2s TimeCoverageRelationStatistics Valid=3581, Invalid=19371, Unknown=0, NotChecked=0, Total=22952 [2018-04-11 20:04:37,165 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 528 states. [2018-04-11 20:04:37,192 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 528 to 528. [2018-04-11 20:04:37,192 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 528 states. [2018-04-11 20:04:37,193 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 528 states to 528 states and 557 transitions. [2018-04-11 20:04:37,193 INFO L78 Accepts]: Start accepts. Automaton has 528 states and 557 transitions. Word has length 274 [2018-04-11 20:04:37,194 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-04-11 20:04:37,194 INFO L459 AbstractCegarLoop]: Abstraction has 528 states and 557 transitions. [2018-04-11 20:04:37,194 INFO L460 AbstractCegarLoop]: Interpolant automaton has 77 states. [2018-04-11 20:04:37,194 INFO L276 IsEmpty]: Start isEmpty. Operand 528 states and 557 transitions. [2018-04-11 20:04:37,195 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 285 [2018-04-11 20:04:37,195 INFO L347 BasicCegarLoop]: Found error trace [2018-04-11 20:04:37,195 INFO L355 BasicCegarLoop]: trace histogram [27, 26, 26, 25, 25, 25, 25, 25, 25, 25, 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] [2018-04-11 20:04:37,195 INFO L408 AbstractCegarLoop]: === Iteration 32 === [__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]=== [2018-04-11 20:04:37,195 INFO L82 PathProgramCache]: Analyzing trace with hash 439762291, now seen corresponding path program 24 times No working directory specified, using /storage/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 33 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 33 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2018-04-11 20:04:37,201 INFO L68 tionRefinementEngine]: Using refinement strategy FixedRefinementStrategy [2018-04-11 20:04:37,266 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-04-11 20:04:37,271 INFO L270 TraceCheckSpWp]: Computing forward predicates... [2018-04-11 20:04:38,008 INFO L134 CoverageAnalysis]: Checked inductivity of 3155 backedges. 737 proven. 2418 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-04-11 20:04:38,009 INFO L314 TraceCheckSpWp]: Computing backward predicates... [2018-04-11 20:04:38,871 INFO L134 CoverageAnalysis]: Checked inductivity of 3155 backedges. 737 proven. 2418 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-04-11 20:04:38,890 INFO L320 seRefinementStrategy]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2018-04-11 20:04:38,890 INFO L335 seRefinementStrategy]: Number of different interpolants: perfect sequences [] imperfect sequences [57, 57] total 82 [2018-04-11 20:04:38,890 INFO L442 AbstractCegarLoop]: Interpolant automaton has 82 states [2018-04-11 20:04:38,891 INFO L132 InterpolantAutomaton]: Constructing interpolant automaton starting with 82 interpolants. [2018-04-11 20:04:38,891 INFO L133 InterpolantAutomaton]: CoverageRelationStatistics Valid=838, Invalid=5804, Unknown=0, NotChecked=0, Total=6642 [2018-04-11 20:04:38,891 INFO L87 Difference]: Start difference. First operand 528 states and 557 transitions. Second operand 82 states. [2018-04-11 20:04:40,847 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-04-11 20:04:40,848 INFO L93 Difference]: Finished difference Result 1092 states and 1153 transitions. [2018-04-11 20:04:40,848 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 84 states. [2018-04-11 20:04:40,848 INFO L78 Accepts]: Start accepts. Automaton has 82 states. Word has length 284 [2018-04-11 20:04:40,848 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-04-11 20:04:40,849 INFO L225 Difference]: With dead ends: 1092 [2018-04-11 20:04:40,850 INFO L226 Difference]: Without dead ends: 600 [2018-04-11 20:04:40,851 INFO L567 BasicCegarLoop]: 0 DeclaredPredicates, 635 GetRequests, 458 SyntacticMatches, 30 SemanticMatches, 147 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 6556 ImplicationChecksByTransitivity, 2.5s TimeCoverageRelationStatistics Valid=3505, Invalid=18547, Unknown=0, NotChecked=0, Total=22052 [2018-04-11 20:04:40,852 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 600 states. [2018-04-11 20:04:40,880 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 600 to 566. [2018-04-11 20:04:40,880 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 566 states. [2018-04-11 20:04:40,881 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 566 states to 566 states and 598 transitions. [2018-04-11 20:04:40,881 INFO L78 Accepts]: Start accepts. Automaton has 566 states and 598 transitions. Word has length 284 [2018-04-11 20:04:40,881 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-04-11 20:04:40,881 INFO L459 AbstractCegarLoop]: Abstraction has 566 states and 598 transitions. [2018-04-11 20:04:40,881 INFO L460 AbstractCegarLoop]: Interpolant automaton has 82 states. [2018-04-11 20:04:40,881 INFO L276 IsEmpty]: Start isEmpty. Operand 566 states and 598 transitions. [2018-04-11 20:04:40,883 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 295 [2018-04-11 20:04:40,883 INFO L347 BasicCegarLoop]: Found error trace [2018-04-11 20:04:40,883 INFO L355 BasicCegarLoop]: trace histogram [28, 27, 27, 26, 26, 26, 26, 26, 26, 26, 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] [2018-04-11 20:04:40,883 INFO L408 AbstractCegarLoop]: === Iteration 33 === [__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]=== [2018-04-11 20:04:40,884 INFO L82 PathProgramCache]: Analyzing trace with hash -1330369697, now seen corresponding path program 25 times No working directory specified, using /storage/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 34 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 34 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2018-04-11 20:04:40,897 INFO L68 tionRefinementEngine]: Using refinement strategy FixedRefinementStrategy [2018-04-11 20:04:40,978 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-04-11 20:04:40,982 INFO L270 TraceCheckSpWp]: Computing forward predicates... [2018-04-11 20:04:42,163 INFO L134 CoverageAnalysis]: Checked inductivity of 3411 backedges. 933 proven. 2478 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-04-11 20:04:42,163 INFO L314 TraceCheckSpWp]: Computing backward predicates... [2018-04-11 20:04:43,051 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 [2018-04-11 20:04:43,051 INFO L267 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2018-04-11 20:04:43,073 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. [2018-04-11 20:04:43,073 INFO L202 ElimStorePlain]: Needed 2 recursive calls to eliminate 3 variables, input treesize:26, output treesize:13 [2018-04-11 20:04:43,439 INFO L134 CoverageAnalysis]: Checked inductivity of 3411 backedges. 822 proven. 2589 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-04-11 20:04:43,469 INFO L320 seRefinementStrategy]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2018-04-11 20:04:43,469 INFO L335 seRefinementStrategy]: Number of different interpolants: perfect sequences [] imperfect sequences [55, 55] total 82 [2018-04-11 20:04:43,469 INFO L442 AbstractCegarLoop]: Interpolant automaton has 83 states [2018-04-11 20:04:43,470 INFO L132 InterpolantAutomaton]: Constructing interpolant automaton starting with 83 interpolants. [2018-04-11 20:04:43,470 INFO L133 InterpolantAutomaton]: CoverageRelationStatistics Valid=846, Invalid=5960, Unknown=0, NotChecked=0, Total=6806 [2018-04-11 20:04:43,471 INFO L87 Difference]: Start difference. First operand 566 states and 598 transitions. Second operand 83 states. [2018-04-11 20:04:47,879 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-04-11 20:04:47,879 INFO L93 Difference]: Finished difference Result 567 states and 598 transitions. [2018-04-11 20:04:47,879 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 96 states. [2018-04-11 20:04:47,879 INFO L78 Accepts]: Start accepts. Automaton has 83 states. Word has length 294 [2018-04-11 20:04:47,880 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-04-11 20:04:47,881 INFO L225 Difference]: With dead ends: 567 [2018-04-11 20:04:47,881 INFO L226 Difference]: Without dead ends: 566 [2018-04-11 20:04:47,882 INFO L567 BasicCegarLoop]: 0 DeclaredPredicates, 669 GetRequests, 480 SyntacticMatches, 27 SemanticMatches, 162 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 9387 ImplicationChecksByTransitivity, 3.8s TimeCoverageRelationStatistics Valid=4136, Invalid=22596, Unknown=0, NotChecked=0, Total=26732 [2018-04-11 20:04:47,883 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 566 states. [2018-04-11 20:04:47,911 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 566 to 566. [2018-04-11 20:04:47,911 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 566 states. [2018-04-11 20:04:47,912 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 566 states to 566 states and 597 transitions. [2018-04-11 20:04:47,912 INFO L78 Accepts]: Start accepts. Automaton has 566 states and 597 transitions. Word has length 294 [2018-04-11 20:04:47,912 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-04-11 20:04:47,912 INFO L459 AbstractCegarLoop]: Abstraction has 566 states and 597 transitions. [2018-04-11 20:04:47,912 INFO L460 AbstractCegarLoop]: Interpolant automaton has 83 states. [2018-04-11 20:04:47,913 INFO L276 IsEmpty]: Start isEmpty. Operand 566 states and 597 transitions. [2018-04-11 20:04:47,914 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 305 [2018-04-11 20:04:47,914 INFO L347 BasicCegarLoop]: Found error trace [2018-04-11 20:04:47,914 INFO L355 BasicCegarLoop]: trace histogram [29, 28, 28, 27, 27, 27, 27, 27, 27, 27, 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] [2018-04-11 20:04:47,914 INFO L408 AbstractCegarLoop]: === Iteration 34 === [__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]=== [2018-04-11 20:04:47,914 INFO L82 PathProgramCache]: Analyzing trace with hash 306203851, now seen corresponding path program 26 times No working directory specified, using /storage/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 35 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 35 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2018-04-11 20:04:47,919 INFO L68 tionRefinementEngine]: Using refinement strategy FixedRefinementStrategy [2018-04-11 20:04:47,976 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-04-11 20:04:47,980 INFO L270 TraceCheckSpWp]: Computing forward predicates... [2018-04-11 20:04:48,800 INFO L134 CoverageAnalysis]: Checked inductivity of 3677 backedges. 863 proven. 2814 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-04-11 20:04:48,801 INFO L314 TraceCheckSpWp]: Computing backward predicates... [2018-04-11 20:04:49,763 INFO L134 CoverageAnalysis]: Checked inductivity of 3677 backedges. 863 proven. 2814 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-04-11 20:04:49,783 INFO L320 seRefinementStrategy]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2018-04-11 20:04:49,783 INFO L335 seRefinementStrategy]: Number of different interpolants: perfect sequences [] imperfect sequences [61, 61] total 88 [2018-04-11 20:04:49,784 INFO L442 AbstractCegarLoop]: Interpolant automaton has 88 states [2018-04-11 20:04:49,784 INFO L132 InterpolantAutomaton]: Constructing interpolant automaton starting with 88 interpolants. [2018-04-11 20:04:49,784 INFO L133 InterpolantAutomaton]: CoverageRelationStatistics Valid=958, Invalid=6698, Unknown=0, NotChecked=0, Total=7656 [2018-04-11 20:04:49,785 INFO L87 Difference]: Start difference. First operand 566 states and 597 transitions. Second operand 88 states. [2018-04-11 20:04:52,109 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-04-11 20:04:52,109 INFO L93 Difference]: Finished difference Result 1168 states and 1233 transitions. [2018-04-11 20:04:52,109 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 90 states. [2018-04-11 20:04:52,109 INFO L78 Accepts]: Start accepts. Automaton has 88 states. Word has length 304 [2018-04-11 20:04:52,110 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-04-11 20:04:52,111 INFO L225 Difference]: With dead ends: 1168 [2018-04-11 20:04:52,111 INFO L226 Difference]: Without dead ends: 638 [2018-04-11 20:04:52,113 INFO L567 BasicCegarLoop]: 0 DeclaredPredicates, 680 GetRequests, 490 SyntacticMatches, 32 SemanticMatches, 158 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 7606 ImplicationChecksByTransitivity, 2.8s TimeCoverageRelationStatistics Valid=4019, Invalid=21421, Unknown=0, NotChecked=0, Total=25440 [2018-04-11 20:04:52,113 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 638 states. [2018-04-11 20:04:52,144 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 638 to 604. [2018-04-11 20:04:52,144 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 604 states. [2018-04-11 20:04:52,145 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 604 states to 604 states and 638 transitions. [2018-04-11 20:04:52,145 INFO L78 Accepts]: Start accepts. Automaton has 604 states and 638 transitions. Word has length 304 [2018-04-11 20:04:52,145 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-04-11 20:04:52,145 INFO L459 AbstractCegarLoop]: Abstraction has 604 states and 638 transitions. [2018-04-11 20:04:52,145 INFO L460 AbstractCegarLoop]: Interpolant automaton has 88 states. [2018-04-11 20:04:52,145 INFO L276 IsEmpty]: Start isEmpty. Operand 604 states and 638 transitions. [2018-04-11 20:04:52,146 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 315 [2018-04-11 20:04:52,146 INFO L347 BasicCegarLoop]: Found error trace [2018-04-11 20:04:52,146 INFO L355 BasicCegarLoop]: trace histogram [30, 29, 29, 28, 28, 28, 28, 28, 28, 28, 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] [2018-04-11 20:04:52,147 INFO L408 AbstractCegarLoop]: === Iteration 35 === [__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]=== [2018-04-11 20:04:52,147 INFO L82 PathProgramCache]: Analyzing trace with hash -1064825673, now seen corresponding path program 27 times No working directory specified, using /storage/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 36 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 36 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2018-04-11 20:04:52,152 INFO L68 tionRefinementEngine]: Using refinement strategy FixedRefinementStrategy [2018-04-11 20:04:52,223 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-04-11 20:04:52,230 INFO L270 TraceCheckSpWp]: Computing forward predicates... [2018-04-11 20:04:53,526 INFO L134 CoverageAnalysis]: Checked inductivity of 3953 backedges. 1075 proven. 2878 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-04-11 20:04:53,526 INFO L314 TraceCheckSpWp]: Computing backward predicates... [2018-04-11 20:04:54,560 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 [2018-04-11 20:04:54,560 INFO L267 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2018-04-11 20:04:54,563 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. [2018-04-11 20:04:54,563 INFO L202 ElimStorePlain]: Needed 2 recursive calls to eliminate 3 variables, input treesize:26, output treesize:13 [2018-04-11 20:04:55,025 INFO L134 CoverageAnalysis]: Checked inductivity of 3953 backedges. 955 proven. 2998 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-04-11 20:04:55,044 INFO L320 seRefinementStrategy]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2018-04-11 20:04:55,045 INFO L335 seRefinementStrategy]: Number of different interpolants: perfect sequences [] imperfect sequences [59, 59] total 88 [2018-04-11 20:04:55,045 INFO L442 AbstractCegarLoop]: Interpolant automaton has 89 states [2018-04-11 20:04:55,045 INFO L132 InterpolantAutomaton]: Constructing interpolant automaton starting with 89 interpolants. [2018-04-11 20:04:55,046 INFO L133 InterpolantAutomaton]: CoverageRelationStatistics Valid=966, Invalid=6866, Unknown=0, NotChecked=0, Total=7832 [2018-04-11 20:04:55,046 INFO L87 Difference]: Start difference. First operand 604 states and 638 transitions. Second operand 89 states. [2018-04-11 20:04:59,458 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-04-11 20:04:59,458 INFO L93 Difference]: Finished difference Result 605 states and 638 transitions. [2018-04-11 20:04:59,458 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 103 states. [2018-04-11 20:04:59,458 INFO L78 Accepts]: Start accepts. Automaton has 89 states. Word has length 314 [2018-04-11 20:04:59,458 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-04-11 20:04:59,460 INFO L225 Difference]: With dead ends: 605 [2018-04-11 20:04:59,460 INFO L226 Difference]: Without dead ends: 604 [2018-04-11 20:04:59,461 INFO L567 BasicCegarLoop]: 0 DeclaredPredicates, 715 GetRequests, 512 SyntacticMatches, 29 SemanticMatches, 174 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 10914 ImplicationChecksByTransitivity, 4.3s TimeCoverageRelationStatistics Valid=4731, Invalid=26069, Unknown=0, NotChecked=0, Total=30800 [2018-04-11 20:04:59,461 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 604 states. [2018-04-11 20:04:59,506 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 604 to 604. [2018-04-11 20:04:59,506 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 604 states. [2018-04-11 20:04:59,507 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 604 states to 604 states and 637 transitions. [2018-04-11 20:04:59,507 INFO L78 Accepts]: Start accepts. Automaton has 604 states and 637 transitions. Word has length 314 [2018-04-11 20:04:59,508 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-04-11 20:04:59,508 INFO L459 AbstractCegarLoop]: Abstraction has 604 states and 637 transitions. [2018-04-11 20:04:59,508 INFO L460 AbstractCegarLoop]: Interpolant automaton has 89 states. [2018-04-11 20:04:59,508 INFO L276 IsEmpty]: Start isEmpty. Operand 604 states and 637 transitions. [2018-04-11 20:04:59,509 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 325 [2018-04-11 20:04:59,509 INFO L347 BasicCegarLoop]: Found error trace [2018-04-11 20:04:59,509 INFO L355 BasicCegarLoop]: trace histogram [31, 30, 30, 29, 29, 29, 29, 29, 29, 29, 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] [2018-04-11 20:04:59,509 INFO L408 AbstractCegarLoop]: === Iteration 36 === [__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]=== [2018-04-11 20:04:59,510 INFO L82 PathProgramCache]: Analyzing trace with hash -435396573, now seen corresponding path program 28 times No working directory specified, using /storage/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 37 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 37 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2018-04-11 20:04:59,518 INFO L68 tionRefinementEngine]: Using refinement strategy FixedRefinementStrategy [2018-04-11 20:04:59,604 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-04-11 20:04:59,610 INFO L270 TraceCheckSpWp]: Computing forward predicates... [2018-04-11 20:05:00,603 INFO L134 CoverageAnalysis]: Checked inductivity of 4239 backedges. 999 proven. 3240 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-04-11 20:05:00,603 INFO L314 TraceCheckSpWp]: Computing backward predicates... [2018-04-11 20:05:01,702 INFO L134 CoverageAnalysis]: Checked inductivity of 4239 backedges. 999 proven. 3240 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-04-11 20:05:01,721 INFO L320 seRefinementStrategy]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2018-04-11 20:05:01,722 INFO L335 seRefinementStrategy]: Number of different interpolants: perfect sequences [] imperfect sequences [65, 65] total 94 [2018-04-11 20:05:01,722 INFO L442 AbstractCegarLoop]: Interpolant automaton has 94 states [2018-04-11 20:05:01,723 INFO L132 InterpolantAutomaton]: Constructing interpolant automaton starting with 94 interpolants. [2018-04-11 20:05:01,723 INFO L133 InterpolantAutomaton]: CoverageRelationStatistics Valid=1086, Invalid=7656, Unknown=0, NotChecked=0, Total=8742 [2018-04-11 20:05:01,723 INFO L87 Difference]: Start difference. First operand 604 states and 637 transitions. Second operand 94 states. [2018-04-11 20:05:04,150 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-04-11 20:05:04,150 INFO L93 Difference]: Finished difference Result 1244 states and 1313 transitions. [2018-04-11 20:05:04,150 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 96 states. [2018-04-11 20:05:04,151 INFO L78 Accepts]: Start accepts. Automaton has 94 states. Word has length 324 [2018-04-11 20:05:04,151 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-04-11 20:05:04,152 INFO L225 Difference]: With dead ends: 1244 [2018-04-11 20:05:04,153 INFO L226 Difference]: Without dead ends: 676 [2018-04-11 20:05:04,154 INFO L567 BasicCegarLoop]: 0 DeclaredPredicates, 725 GetRequests, 522 SyntacticMatches, 34 SemanticMatches, 169 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 8734 ImplicationChecksByTransitivity, 3.3s TimeCoverageRelationStatistics Valid=4568, Invalid=24502, Unknown=0, NotChecked=0, Total=29070 [2018-04-11 20:05:04,155 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 676 states. [2018-04-11 20:05:04,189 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 676 to 642. [2018-04-11 20:05:04,189 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 642 states. [2018-04-11 20:05:04,190 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 642 states to 642 states and 678 transitions. [2018-04-11 20:05:04,190 INFO L78 Accepts]: Start accepts. Automaton has 642 states and 678 transitions. Word has length 324 [2018-04-11 20:05:04,190 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-04-11 20:05:04,190 INFO L459 AbstractCegarLoop]: Abstraction has 642 states and 678 transitions. [2018-04-11 20:05:04,190 INFO L460 AbstractCegarLoop]: Interpolant automaton has 94 states. [2018-04-11 20:05:04,190 INFO L276 IsEmpty]: Start isEmpty. Operand 642 states and 678 transitions. [2018-04-11 20:05:04,192 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 335 [2018-04-11 20:05:04,192 INFO L347 BasicCegarLoop]: Found error trace [2018-04-11 20:05:04,192 INFO L355 BasicCegarLoop]: trace histogram [32, 31, 31, 30, 30, 30, 30, 30, 30, 30, 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] [2018-04-11 20:05:04,192 INFO L408 AbstractCegarLoop]: === Iteration 37 === [__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]=== [2018-04-11 20:05:04,192 INFO L82 PathProgramCache]: Analyzing trace with hash 1728115215, now seen corresponding path program 29 times No working directory specified, using /storage/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 38 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 38 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2018-04-11 20:05:04,198 INFO L68 tionRefinementEngine]: Using refinement strategy FixedRefinementStrategy [2018-04-11 20:05:04,262 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-04-11 20:05:04,267 INFO L270 TraceCheckSpWp]: Computing forward predicates... [2018-04-11 20:05:05,682 INFO L134 CoverageAnalysis]: Checked inductivity of 4535 backedges. 1227 proven. 3308 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-04-11 20:05:05,682 INFO L314 TraceCheckSpWp]: Computing backward predicates... [2018-04-11 20:05:06,927 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 [2018-04-11 20:05:06,927 INFO L267 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2018-04-11 20:05:06,930 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. [2018-04-11 20:05:06,931 INFO L202 ElimStorePlain]: Needed 2 recursive calls to eliminate 3 variables, input treesize:26, output treesize:13 [2018-04-11 20:05:07,376 INFO L134 CoverageAnalysis]: Checked inductivity of 4535 backedges. 1098 proven. 3437 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-04-11 20:05:07,395 INFO L320 seRefinementStrategy]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2018-04-11 20:05:07,395 INFO L335 seRefinementStrategy]: Number of different interpolants: perfect sequences [] imperfect sequences [63, 63] total 94 [2018-04-11 20:05:07,396 INFO L442 AbstractCegarLoop]: Interpolant automaton has 95 states [2018-04-11 20:05:07,396 INFO L132 InterpolantAutomaton]: Constructing interpolant automaton starting with 95 interpolants. [2018-04-11 20:05:07,396 INFO L133 InterpolantAutomaton]: CoverageRelationStatistics Valid=1094, Invalid=7836, Unknown=0, NotChecked=0, Total=8930 [2018-04-11 20:05:07,397 INFO L87 Difference]: Start difference. First operand 642 states and 678 transitions. Second operand 95 states. [2018-04-11 20:05:12,041 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-04-11 20:05:12,042 INFO L93 Difference]: Finished difference Result 643 states and 678 transitions. [2018-04-11 20:05:12,042 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 110 states. [2018-04-11 20:05:12,042 INFO L78 Accepts]: Start accepts. Automaton has 95 states. Word has length 334 [2018-04-11 20:05:12,042 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-04-11 20:05:12,044 INFO L225 Difference]: With dead ends: 643 [2018-04-11 20:05:12,044 INFO L226 Difference]: Without dead ends: 642 [2018-04-11 20:05:12,045 INFO L567 BasicCegarLoop]: 0 DeclaredPredicates, 761 GetRequests, 544 SyntacticMatches, 31 SemanticMatches, 186 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 12556 ImplicationChecksByTransitivity, 4.8s TimeCoverageRelationStatistics Valid=5366, Invalid=29790, Unknown=0, NotChecked=0, Total=35156 [2018-04-11 20:05:12,045 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 642 states. [2018-04-11 20:05:12,078 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 642 to 642. [2018-04-11 20:05:12,078 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 642 states. [2018-04-11 20:05:12,079 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 642 states to 642 states and 677 transitions. [2018-04-11 20:05:12,080 INFO L78 Accepts]: Start accepts. Automaton has 642 states and 677 transitions. Word has length 334 [2018-04-11 20:05:12,080 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-04-11 20:05:12,080 INFO L459 AbstractCegarLoop]: Abstraction has 642 states and 677 transitions. [2018-04-11 20:05:12,080 INFO L460 AbstractCegarLoop]: Interpolant automaton has 95 states. [2018-04-11 20:05:12,080 INFO L276 IsEmpty]: Start isEmpty. Operand 642 states and 677 transitions. [2018-04-11 20:05:12,082 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 345 [2018-04-11 20:05:12,082 INFO L347 BasicCegarLoop]: Found error trace [2018-04-11 20:05:12,082 INFO L355 BasicCegarLoop]: trace histogram [33, 32, 32, 31, 31, 31, 31, 31, 31, 31, 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] [2018-04-11 20:05:12,082 INFO L408 AbstractCegarLoop]: === Iteration 38 === [__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]=== [2018-04-11 20:05:12,083 INFO L82 PathProgramCache]: Analyzing trace with hash -1727498373, now seen corresponding path program 30 times No working directory specified, using /storage/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 39 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 39 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2018-04-11 20:05:12,089 INFO L68 tionRefinementEngine]: Using refinement strategy FixedRefinementStrategy [2018-04-11 20:05:12,151 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-04-11 20:05:12,156 INFO L270 TraceCheckSpWp]: Computing forward predicates... [2018-04-11 20:05:13,200 INFO L134 CoverageAnalysis]: Checked inductivity of 4841 backedges. 1145 proven. 3696 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-04-11 20:05:13,201 INFO L314 TraceCheckSpWp]: Computing backward predicates... [2018-04-11 20:05:14,434 INFO L134 CoverageAnalysis]: Checked inductivity of 4841 backedges. 1145 proven. 3696 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-04-11 20:05:14,453 INFO L320 seRefinementStrategy]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2018-04-11 20:05:14,453 INFO L335 seRefinementStrategy]: Number of different interpolants: perfect sequences [] imperfect sequences [69, 69] total 100 [2018-04-11 20:05:14,454 INFO L442 AbstractCegarLoop]: Interpolant automaton has 100 states [2018-04-11 20:05:14,454 INFO L132 InterpolantAutomaton]: Constructing interpolant automaton starting with 100 interpolants. [2018-04-11 20:05:14,455 INFO L133 InterpolantAutomaton]: CoverageRelationStatistics Valid=1222, Invalid=8678, Unknown=0, NotChecked=0, Total=9900 [2018-04-11 20:05:14,455 INFO L87 Difference]: Start difference. First operand 642 states and 677 transitions. Second operand 100 states. [2018-04-11 20:05:17,798 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-04-11 20:05:17,799 INFO L93 Difference]: Finished difference Result 1320 states and 1393 transitions. [2018-04-11 20:05:17,799 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 102 states. [2018-04-11 20:05:17,799 INFO L78 Accepts]: Start accepts. Automaton has 100 states. Word has length 344 [2018-04-11 20:05:17,799 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-04-11 20:05:17,801 INFO L225 Difference]: With dead ends: 1320 [2018-04-11 20:05:17,801 INFO L226 Difference]: Without dead ends: 714 [2018-04-11 20:05:17,803 INFO L567 BasicCegarLoop]: 0 DeclaredPredicates, 770 GetRequests, 554 SyntacticMatches, 36 SemanticMatches, 180 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 9940 ImplicationChecksByTransitivity, 3.7s TimeCoverageRelationStatistics Valid=5152, Invalid=27790, Unknown=0, NotChecked=0, Total=32942 [2018-04-11 20:05:17,804 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 714 states. [2018-04-11 20:05:17,840 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 714 to 680. [2018-04-11 20:05:17,840 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 680 states. [2018-04-11 20:05:17,842 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 680 states to 680 states and 718 transitions. [2018-04-11 20:05:17,842 INFO L78 Accepts]: Start accepts. Automaton has 680 states and 718 transitions. Word has length 344 [2018-04-11 20:05:17,843 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-04-11 20:05:17,843 INFO L459 AbstractCegarLoop]: Abstraction has 680 states and 718 transitions. [2018-04-11 20:05:17,843 INFO L460 AbstractCegarLoop]: Interpolant automaton has 100 states. [2018-04-11 20:05:17,843 INFO L276 IsEmpty]: Start isEmpty. Operand 680 states and 718 transitions. [2018-04-11 20:05:17,845 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 355 [2018-04-11 20:05:17,845 INFO L347 BasicCegarLoop]: Found error trace [2018-04-11 20:05:17,845 INFO L355 BasicCegarLoop]: trace histogram [34, 33, 33, 32, 32, 32, 32, 32, 32, 32, 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] [2018-04-11 20:05:17,845 INFO L408 AbstractCegarLoop]: === Iteration 39 === [__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]=== [2018-04-11 20:05:17,845 INFO L82 PathProgramCache]: Analyzing trace with hash 1477237607, now seen corresponding path program 31 times No working directory specified, using /storage/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 40 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 40 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2018-04-11 20:05:17,851 INFO L68 tionRefinementEngine]: Using refinement strategy FixedRefinementStrategy [2018-04-11 20:05:17,916 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-04-11 20:05:17,920 INFO L270 TraceCheckSpWp]: Computing forward predicates... [2018-04-11 20:05:19,473 INFO L134 CoverageAnalysis]: Checked inductivity of 5157 backedges. 1389 proven. 3768 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-04-11 20:05:19,473 INFO L314 TraceCheckSpWp]: Computing backward predicates... [2018-04-11 20:05:20,687 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 [2018-04-11 20:05:20,687 INFO L267 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2018-04-11 20:05:20,690 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. [2018-04-11 20:05:20,690 INFO L202 ElimStorePlain]: Needed 2 recursive calls to eliminate 3 variables, input treesize:26, output treesize:13 [2018-04-11 20:05:21,189 INFO L134 CoverageAnalysis]: Checked inductivity of 5157 backedges. 1251 proven. 3906 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-04-11 20:05:21,208 INFO L320 seRefinementStrategy]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2018-04-11 20:05:21,208 INFO L335 seRefinementStrategy]: Number of different interpolants: perfect sequences [] imperfect sequences [67, 67] total 100 [2018-04-11 20:05:21,209 INFO L442 AbstractCegarLoop]: Interpolant automaton has 101 states [2018-04-11 20:05:21,209 INFO L132 InterpolantAutomaton]: Constructing interpolant automaton starting with 101 interpolants. [2018-04-11 20:05:21,209 INFO L133 InterpolantAutomaton]: CoverageRelationStatistics Valid=1230, Invalid=8870, Unknown=0, NotChecked=0, Total=10100 [2018-04-11 20:05:21,210 INFO L87 Difference]: Start difference. First operand 680 states and 718 transitions. Second operand 101 states. [2018-04-11 20:05:26,668 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-04-11 20:05:26,668 INFO L93 Difference]: Finished difference Result 681 states and 718 transitions. [2018-04-11 20:05:26,668 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 117 states. [2018-04-11 20:05:26,668 INFO L78 Accepts]: Start accepts. Automaton has 101 states. Word has length 354 [2018-04-11 20:05:26,669 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-04-11 20:05:26,671 INFO L225 Difference]: With dead ends: 681 [2018-04-11 20:05:26,671 INFO L226 Difference]: Without dead ends: 680 [2018-04-11 20:05:26,672 INFO L567 BasicCegarLoop]: 0 DeclaredPredicates, 807 GetRequests, 576 SyntacticMatches, 33 SemanticMatches, 198 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 14313 ImplicationChecksByTransitivity, 5.1s TimeCoverageRelationStatistics Valid=6041, Invalid=33759, Unknown=0, NotChecked=0, Total=39800 [2018-04-11 20:05:26,673 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 680 states. [2018-04-11 20:05:26,709 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 680 to 680. [2018-04-11 20:05:26,709 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 680 states. [2018-04-11 20:05:26,710 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 680 states to 680 states and 717 transitions. [2018-04-11 20:05:26,710 INFO L78 Accepts]: Start accepts. Automaton has 680 states and 717 transitions. Word has length 354 [2018-04-11 20:05:26,710 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-04-11 20:05:26,710 INFO L459 AbstractCegarLoop]: Abstraction has 680 states and 717 transitions. [2018-04-11 20:05:26,710 INFO L460 AbstractCegarLoop]: Interpolant automaton has 101 states. [2018-04-11 20:05:26,710 INFO L276 IsEmpty]: Start isEmpty. Operand 680 states and 717 transitions. [2018-04-11 20:05:26,711 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 365 [2018-04-11 20:05:26,711 INFO L347 BasicCegarLoop]: Found error trace [2018-04-11 20:05:26,712 INFO L355 BasicCegarLoop]: trace histogram [35, 34, 34, 33, 33, 33, 33, 33, 33, 33, 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] [2018-04-11 20:05:26,712 INFO L408 AbstractCegarLoop]: === Iteration 40 === [__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]=== [2018-04-11 20:05:26,712 INFO L82 PathProgramCache]: Analyzing trace with hash 1302500051, now seen corresponding path program 32 times No working directory specified, using /storage/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 41 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 41 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2018-04-11 20:05:26,717 INFO L68 tionRefinementEngine]: Using refinement strategy FixedRefinementStrategy [2018-04-11 20:05:26,786 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-04-11 20:05:26,790 INFO L270 TraceCheckSpWp]: Computing forward predicates... [2018-04-11 20:05:27,976 INFO L134 CoverageAnalysis]: Checked inductivity of 5483 backedges. 1301 proven. 4182 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-04-11 20:05:27,976 INFO L314 TraceCheckSpWp]: Computing backward predicates... [2018-04-11 20:05:29,358 INFO L134 CoverageAnalysis]: Checked inductivity of 5483 backedges. 1301 proven. 4182 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-04-11 20:05:29,378 INFO L320 seRefinementStrategy]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2018-04-11 20:05:29,378 INFO L335 seRefinementStrategy]: Number of different interpolants: perfect sequences [] imperfect sequences [73, 73] total 106 [2018-04-11 20:05:29,379 INFO L442 AbstractCegarLoop]: Interpolant automaton has 106 states [2018-04-11 20:05:29,379 INFO L132 InterpolantAutomaton]: Constructing interpolant automaton starting with 106 interpolants. [2018-04-11 20:05:29,379 INFO L133 InterpolantAutomaton]: CoverageRelationStatistics Valid=1366, Invalid=9764, Unknown=0, NotChecked=0, Total=11130 [2018-04-11 20:05:29,380 INFO L87 Difference]: Start difference. First operand 680 states and 717 transitions. Second operand 106 states. [2018-04-11 20:05:32,747 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-04-11 20:05:32,747 INFO L93 Difference]: Finished difference Result 1396 states and 1473 transitions. [2018-04-11 20:05:32,748 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 108 states. [2018-04-11 20:05:32,748 INFO L78 Accepts]: Start accepts. Automaton has 106 states. Word has length 364 [2018-04-11 20:05:32,748 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-04-11 20:05:32,750 INFO L225 Difference]: With dead ends: 1396 [2018-04-11 20:05:32,750 INFO L226 Difference]: Without dead ends: 752 [2018-04-11 20:05:32,754 INFO L567 BasicCegarLoop]: 0 DeclaredPredicates, 815 GetRequests, 586 SyntacticMatches, 38 SemanticMatches, 191 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 11224 ImplicationChecksByTransitivity, 4.1s TimeCoverageRelationStatistics Valid=5771, Invalid=31285, Unknown=0, NotChecked=0, Total=37056 [2018-04-11 20:05:32,755 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 752 states. [2018-04-11 20:05:32,809 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 752 to 718. [2018-04-11 20:05:32,809 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 718 states. [2018-04-11 20:05:32,809 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 718 states to 718 states and 758 transitions. [2018-04-11 20:05:32,810 INFO L78 Accepts]: Start accepts. Automaton has 718 states and 758 transitions. Word has length 364 [2018-04-11 20:05:32,810 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-04-11 20:05:32,810 INFO L459 AbstractCegarLoop]: Abstraction has 718 states and 758 transitions. [2018-04-11 20:05:32,810 INFO L460 AbstractCegarLoop]: Interpolant automaton has 106 states. [2018-04-11 20:05:32,810 INFO L276 IsEmpty]: Start isEmpty. Operand 718 states and 758 transitions. [2018-04-11 20:05:32,811 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 375 [2018-04-11 20:05:32,811 INFO L347 BasicCegarLoop]: Found error trace [2018-04-11 20:05:32,811 INFO L355 BasicCegarLoop]: trace histogram [36, 35, 35, 34, 34, 34, 34, 34, 34, 34, 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] [2018-04-11 20:05:32,811 INFO L408 AbstractCegarLoop]: === Iteration 41 === [__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]=== [2018-04-11 20:05:32,812 INFO L82 PathProgramCache]: Analyzing trace with hash 647612607, now seen corresponding path program 33 times No working directory specified, using /storage/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 42 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 42 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2018-04-11 20:05:32,827 INFO L68 tionRefinementEngine]: Using refinement strategy FixedRefinementStrategy [2018-04-11 20:05:32,901 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-04-11 20:05:32,905 INFO L270 TraceCheckSpWp]: Computing forward predicates... [2018-04-11 20:05:34,667 INFO L134 CoverageAnalysis]: Checked inductivity of 5819 backedges. 1561 proven. 4258 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-04-11 20:05:34,667 INFO L314 TraceCheckSpWp]: Computing backward predicates... [2018-04-11 20:05:36,058 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 [2018-04-11 20:05:36,058 INFO L267 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2018-04-11 20:05:36,061 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. [2018-04-11 20:05:36,061 INFO L202 ElimStorePlain]: Needed 2 recursive calls to eliminate 3 variables, input treesize:26, output treesize:13 [2018-04-11 20:05:36,612 INFO L134 CoverageAnalysis]: Checked inductivity of 5819 backedges. 1414 proven. 4405 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-04-11 20:05:36,632 INFO L320 seRefinementStrategy]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2018-04-11 20:05:36,632 INFO L335 seRefinementStrategy]: Number of different interpolants: perfect sequences [] imperfect sequences [71, 71] total 106 [2018-04-11 20:05:36,633 INFO L442 AbstractCegarLoop]: Interpolant automaton has 107 states [2018-04-11 20:05:36,633 INFO L132 InterpolantAutomaton]: Constructing interpolant automaton starting with 107 interpolants. [2018-04-11 20:05:36,633 INFO L133 InterpolantAutomaton]: CoverageRelationStatistics Valid=1374, Invalid=9968, Unknown=0, NotChecked=0, Total=11342 [2018-04-11 20:05:36,634 INFO L87 Difference]: Start difference. First operand 718 states and 758 transitions. Second operand 107 states. [2018-04-11 20:05:42,139 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-04-11 20:05:42,139 INFO L93 Difference]: Finished difference Result 719 states and 758 transitions. [2018-04-11 20:05:42,139 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 124 states. [2018-04-11 20:05:42,139 INFO L78 Accepts]: Start accepts. Automaton has 107 states. Word has length 374 [2018-04-11 20:05:42,139 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-04-11 20:05:42,141 INFO L225 Difference]: With dead ends: 719 [2018-04-11 20:05:42,141 INFO L226 Difference]: Without dead ends: 718 [2018-04-11 20:05:42,143 INFO L567 BasicCegarLoop]: 0 DeclaredPredicates, 853 GetRequests, 608 SyntacticMatches, 35 SemanticMatches, 210 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 16185 ImplicationChecksByTransitivity, 5.8s TimeCoverageRelationStatistics Valid=6756, Invalid=37976, Unknown=0, NotChecked=0, Total=44732 [2018-04-11 20:05:42,144 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 718 states. [2018-04-11 20:05:42,197 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 718 to 718. [2018-04-11 20:05:42,197 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 718 states. [2018-04-11 20:05:42,198 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 718 states to 718 states and 757 transitions. [2018-04-11 20:05:42,198 INFO L78 Accepts]: Start accepts. Automaton has 718 states and 757 transitions. Word has length 374 [2018-04-11 20:05:42,198 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-04-11 20:05:42,198 INFO L459 AbstractCegarLoop]: Abstraction has 718 states and 757 transitions. [2018-04-11 20:05:42,198 INFO L460 AbstractCegarLoop]: Interpolant automaton has 107 states. [2018-04-11 20:05:42,198 INFO L276 IsEmpty]: Start isEmpty. Operand 718 states and 757 transitions. [2018-04-11 20:05:42,199 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 385 [2018-04-11 20:05:42,200 INFO L347 BasicCegarLoop]: Found error trace [2018-04-11 20:05:42,200 INFO L355 BasicCegarLoop]: trace histogram [37, 36, 36, 35, 35, 35, 35, 35, 35, 35, 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] [2018-04-11 20:05:42,200 INFO L408 AbstractCegarLoop]: === Iteration 42 === [__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]=== [2018-04-11 20:05:42,200 INFO L82 PathProgramCache]: Analyzing trace with hash 1162392107, now seen corresponding path program 34 times No working directory specified, using /storage/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 43 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 43 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2018-04-11 20:05:42,205 INFO L68 tionRefinementEngine]: Using refinement strategy FixedRefinementStrategy [2018-04-11 20:05:42,275 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-04-11 20:05:42,280 INFO L270 TraceCheckSpWp]: Computing forward predicates... [2018-04-11 20:05:43,576 INFO L134 CoverageAnalysis]: Checked inductivity of 6165 backedges. 1467 proven. 4698 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-04-11 20:05:43,576 INFO L314 TraceCheckSpWp]: Computing backward predicates... [2018-04-11 20:05:45,124 INFO L134 CoverageAnalysis]: Checked inductivity of 6165 backedges. 1467 proven. 4698 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-04-11 20:05:45,143 INFO L320 seRefinementStrategy]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2018-04-11 20:05:45,144 INFO L335 seRefinementStrategy]: Number of different interpolants: perfect sequences [] imperfect sequences [77, 77] total 112 [2018-04-11 20:05:45,144 INFO L442 AbstractCegarLoop]: Interpolant automaton has 112 states [2018-04-11 20:05:45,144 INFO L132 InterpolantAutomaton]: Constructing interpolant automaton starting with 112 interpolants. [2018-04-11 20:05:45,145 INFO L133 InterpolantAutomaton]: CoverageRelationStatistics Valid=1518, Invalid=10914, Unknown=0, NotChecked=0, Total=12432 [2018-04-11 20:05:45,145 INFO L87 Difference]: Start difference. First operand 718 states and 757 transitions. Second operand 112 states. [2018-04-11 20:05:48,936 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-04-11 20:05:48,936 INFO L93 Difference]: Finished difference Result 1472 states and 1553 transitions. [2018-04-11 20:05:48,936 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 114 states. [2018-04-11 20:05:48,936 INFO L78 Accepts]: Start accepts. Automaton has 112 states. Word has length 384 [2018-04-11 20:05:48,936 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-04-11 20:05:48,938 INFO L225 Difference]: With dead ends: 1472 [2018-04-11 20:05:48,938 INFO L226 Difference]: Without dead ends: 790 [2018-04-11 20:05:48,940 INFO L567 BasicCegarLoop]: 0 DeclaredPredicates, 860 GetRequests, 618 SyntacticMatches, 40 SemanticMatches, 202 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 12586 ImplicationChecksByTransitivity, 4.5s TimeCoverageRelationStatistics Valid=6425, Invalid=34987, Unknown=0, NotChecked=0, Total=41412 [2018-04-11 20:05:48,941 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 790 states. [2018-04-11 20:05:48,983 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 790 to 756. [2018-04-11 20:05:48,983 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 756 states. [2018-04-11 20:05:48,985 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 756 states to 756 states and 798 transitions. [2018-04-11 20:05:48,985 INFO L78 Accepts]: Start accepts. Automaton has 756 states and 798 transitions. Word has length 384 [2018-04-11 20:05:48,985 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-04-11 20:05:48,985 INFO L459 AbstractCegarLoop]: Abstraction has 756 states and 798 transitions. [2018-04-11 20:05:48,985 INFO L460 AbstractCegarLoop]: Interpolant automaton has 112 states. [2018-04-11 20:05:48,985 INFO L276 IsEmpty]: Start isEmpty. Operand 756 states and 798 transitions. [2018-04-11 20:05:48,987 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 395 [2018-04-11 20:05:48,987 INFO L347 BasicCegarLoop]: Found error trace [2018-04-11 20:05:48,987 INFO L355 BasicCegarLoop]: trace histogram [38, 37, 37, 36, 36, 36, 36, 36, 36, 36, 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] [2018-04-11 20:05:48,987 INFO L408 AbstractCegarLoop]: === Iteration 43 === [__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]=== [2018-04-11 20:05:48,987 INFO L82 PathProgramCache]: Analyzing trace with hash 1150663191, now seen corresponding path program 35 times No working directory specified, using /storage/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 44 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 44 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2018-04-11 20:05:48,992 INFO L68 tionRefinementEngine]: Using refinement strategy FixedRefinementStrategy [2018-04-11 20:05:49,066 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-04-11 20:05:49,071 INFO L270 TraceCheckSpWp]: Computing forward predicates... [2018-04-11 20:05:50,931 INFO L134 CoverageAnalysis]: Checked inductivity of 6521 backedges. 1743 proven. 4778 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-04-11 20:05:50,931 INFO L314 TraceCheckSpWp]: Computing backward predicates... [2018-04-11 20:05:52,459 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 [2018-04-11 20:05:52,459 INFO L267 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2018-04-11 20:05:52,462 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. [2018-04-11 20:05:52,462 INFO L202 ElimStorePlain]: Needed 2 recursive calls to eliminate 3 variables, input treesize:26, output treesize:13 [2018-04-11 20:05:53,083 INFO L134 CoverageAnalysis]: Checked inductivity of 6521 backedges. 1587 proven. 4934 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-04-11 20:05:53,103 INFO L320 seRefinementStrategy]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2018-04-11 20:05:53,103 INFO L335 seRefinementStrategy]: Number of different interpolants: perfect sequences [] imperfect sequences [75, 75] total 112 [2018-04-11 20:05:53,103 INFO L442 AbstractCegarLoop]: Interpolant automaton has 113 states [2018-04-11 20:05:53,104 INFO L132 InterpolantAutomaton]: Constructing interpolant automaton starting with 113 interpolants. [2018-04-11 20:05:53,104 INFO L133 InterpolantAutomaton]: CoverageRelationStatistics Valid=1526, Invalid=11130, Unknown=0, NotChecked=0, Total=12656 [2018-04-11 20:05:53,105 INFO L87 Difference]: Start difference. First operand 756 states and 798 transitions. Second operand 113 states. [2018-04-11 20:05:59,125 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-04-11 20:05:59,125 INFO L93 Difference]: Finished difference Result 757 states and 798 transitions. [2018-04-11 20:05:59,126 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 131 states. [2018-04-11 20:05:59,126 INFO L78 Accepts]: Start accepts. Automaton has 113 states. Word has length 394 [2018-04-11 20:05:59,126 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-04-11 20:05:59,128 INFO L225 Difference]: With dead ends: 757 [2018-04-11 20:05:59,128 INFO L226 Difference]: Without dead ends: 756 [2018-04-11 20:05:59,129 INFO L567 BasicCegarLoop]: 0 DeclaredPredicates, 899 GetRequests, 640 SyntacticMatches, 37 SemanticMatches, 222 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 18172 ImplicationChecksByTransitivity, 6.3s TimeCoverageRelationStatistics Valid=7511, Invalid=42441, Unknown=0, NotChecked=0, Total=49952 [2018-04-11 20:05:59,130 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 756 states. [2018-04-11 20:05:59,172 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 756 to 756. [2018-04-11 20:05:59,172 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 756 states. [2018-04-11 20:05:59,173 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 756 states to 756 states and 797 transitions. [2018-04-11 20:05:59,173 INFO L78 Accepts]: Start accepts. Automaton has 756 states and 797 transitions. Word has length 394 [2018-04-11 20:05:59,173 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-04-11 20:05:59,173 INFO L459 AbstractCegarLoop]: Abstraction has 756 states and 797 transitions. [2018-04-11 20:05:59,173 INFO L460 AbstractCegarLoop]: Interpolant automaton has 113 states. [2018-04-11 20:05:59,173 INFO L276 IsEmpty]: Start isEmpty. Operand 756 states and 797 transitions. [2018-04-11 20:05:59,175 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 405 [2018-04-11 20:05:59,175 INFO L347 BasicCegarLoop]: Found error trace [2018-04-11 20:05:59,175 INFO L355 BasicCegarLoop]: trace histogram [39, 38, 38, 37, 37, 37, 37, 37, 37, 37, 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] [2018-04-11 20:05:59,175 INFO L408 AbstractCegarLoop]: === Iteration 44 === [__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]=== [2018-04-11 20:05:59,175 INFO L82 PathProgramCache]: Analyzing trace with hash -530000509, now seen corresponding path program 36 times No working directory specified, using /storage/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 45 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 45 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2018-04-11 20:05:59,180 INFO L68 tionRefinementEngine]: Using refinement strategy FixedRefinementStrategy [2018-04-11 20:05:59,252 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-04-11 20:05:59,258 INFO L270 TraceCheckSpWp]: Computing forward predicates... [2018-04-11 20:06:00,692 INFO L134 CoverageAnalysis]: Checked inductivity of 6887 backedges. 1643 proven. 5244 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-04-11 20:06:00,693 INFO L314 TraceCheckSpWp]: Computing backward predicates... [2018-04-11 20:06:02,403 INFO L134 CoverageAnalysis]: Checked inductivity of 6887 backedges. 1643 proven. 5244 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-04-11 20:06:02,422 INFO L320 seRefinementStrategy]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2018-04-11 20:06:02,422 INFO L335 seRefinementStrategy]: Number of different interpolants: perfect sequences [] imperfect sequences [81, 81] total 118 [2018-04-11 20:06:02,423 INFO L442 AbstractCegarLoop]: Interpolant automaton has 118 states [2018-04-11 20:06:02,423 INFO L132 InterpolantAutomaton]: Constructing interpolant automaton starting with 118 interpolants. [2018-04-11 20:06:02,424 INFO L133 InterpolantAutomaton]: CoverageRelationStatistics Valid=1678, Invalid=12128, Unknown=0, NotChecked=0, Total=13806 [2018-04-11 20:06:02,424 INFO L87 Difference]: Start difference. First operand 756 states and 797 transitions. Second operand 118 states. [2018-04-11 20:06:06,599 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-04-11 20:06:06,599 INFO L93 Difference]: Finished difference Result 1548 states and 1633 transitions. [2018-04-11 20:06:06,600 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 120 states. [2018-04-11 20:06:06,600 INFO L78 Accepts]: Start accepts. Automaton has 118 states. Word has length 404 [2018-04-11 20:06:06,600 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-04-11 20:06:06,602 INFO L225 Difference]: With dead ends: 1548 [2018-04-11 20:06:06,602 INFO L226 Difference]: Without dead ends: 828 [2018-04-11 20:06:06,605 INFO L567 BasicCegarLoop]: 0 DeclaredPredicates, 905 GetRequests, 650 SyntacticMatches, 42 SemanticMatches, 213 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 14026 ImplicationChecksByTransitivity, 5.0s TimeCoverageRelationStatistics Valid=7114, Invalid=38896, Unknown=0, NotChecked=0, Total=46010 [2018-04-11 20:06:06,605 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 828 states. [2018-04-11 20:06:06,650 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 828 to 794. [2018-04-11 20:06:06,651 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 794 states. [2018-04-11 20:06:06,651 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 794 states to 794 states and 838 transitions. [2018-04-11 20:06:06,651 INFO L78 Accepts]: Start accepts. Automaton has 794 states and 838 transitions. Word has length 404 [2018-04-11 20:06:06,652 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-04-11 20:06:06,652 INFO L459 AbstractCegarLoop]: Abstraction has 794 states and 838 transitions. [2018-04-11 20:06:06,652 INFO L460 AbstractCegarLoop]: Interpolant automaton has 118 states. [2018-04-11 20:06:06,652 INFO L276 IsEmpty]: Start isEmpty. Operand 794 states and 838 transitions. [2018-04-11 20:06:06,653 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 415 [2018-04-11 20:06:06,653 INFO L347 BasicCegarLoop]: Found error trace [2018-04-11 20:06:06,653 INFO L355 BasicCegarLoop]: trace histogram [40, 39, 39, 38, 38, 38, 38, 38, 38, 38, 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] [2018-04-11 20:06:06,653 INFO L408 AbstractCegarLoop]: === Iteration 45 === [__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]=== [2018-04-11 20:06:06,654 INFO L82 PathProgramCache]: Analyzing trace with hash 49196911, now seen corresponding path program 37 times No working directory specified, using /storage/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 46 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 46 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2018-04-11 20:06:06,660 INFO L68 tionRefinementEngine]: Using refinement strategy FixedRefinementStrategy [2018-04-11 20:06:06,740 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-04-11 20:06:06,746 INFO L270 TraceCheckSpWp]: Computing forward predicates... [2018-04-11 20:06:08,810 INFO L134 CoverageAnalysis]: Checked inductivity of 7263 backedges. 1935 proven. 5328 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-04-11 20:06:08,810 INFO L314 TraceCheckSpWp]: Computing backward predicates... [2018-04-11 20:06:10,502 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 [2018-04-11 20:06:10,502 INFO L267 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2018-04-11 20:06:10,504 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. [2018-04-11 20:06:10,504 INFO L202 ElimStorePlain]: Needed 2 recursive calls to eliminate 3 variables, input treesize:26, output treesize:13 [2018-04-11 20:06:11,190 INFO L134 CoverageAnalysis]: Checked inductivity of 7263 backedges. 1770 proven. 5493 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-04-11 20:06:11,210 INFO L320 seRefinementStrategy]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2018-04-11 20:06:11,211 INFO L335 seRefinementStrategy]: Number of different interpolants: perfect sequences [] imperfect sequences [79, 79] total 118 [2018-04-11 20:06:11,211 INFO L442 AbstractCegarLoop]: Interpolant automaton has 119 states [2018-04-11 20:06:11,212 INFO L132 InterpolantAutomaton]: Constructing interpolant automaton starting with 119 interpolants. [2018-04-11 20:06:11,213 INFO L133 InterpolantAutomaton]: CoverageRelationStatistics Valid=1686, Invalid=12356, Unknown=0, NotChecked=0, Total=14042 [2018-04-11 20:06:11,213 INFO L87 Difference]: Start difference. First operand 794 states and 838 transitions. Second operand 119 states. [2018-04-11 20:06:17,907 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-04-11 20:06:17,907 INFO L93 Difference]: Finished difference Result 795 states and 838 transitions. [2018-04-11 20:06:17,941 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 138 states. [2018-04-11 20:06:17,942 INFO L78 Accepts]: Start accepts. Automaton has 119 states. Word has length 414 [2018-04-11 20:06:17,942 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-04-11 20:06:17,944 INFO L225 Difference]: With dead ends: 795 [2018-04-11 20:06:17,944 INFO L226 Difference]: Without dead ends: 794 [2018-04-11 20:06:17,948 INFO L567 BasicCegarLoop]: 0 DeclaredPredicates, 945 GetRequests, 672 SyntacticMatches, 39 SemanticMatches, 234 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 20274 ImplicationChecksByTransitivity, 6.9s TimeCoverageRelationStatistics Valid=8306, Invalid=47154, Unknown=0, NotChecked=0, Total=55460 [2018-04-11 20:06:17,949 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 794 states. [2018-04-11 20:06:18,016 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 794 to 794. [2018-04-11 20:06:18,016 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 794 states. [2018-04-11 20:06:18,017 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 794 states to 794 states and 837 transitions. [2018-04-11 20:06:18,017 INFO L78 Accepts]: Start accepts. Automaton has 794 states and 837 transitions. Word has length 414 [2018-04-11 20:06:18,017 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-04-11 20:06:18,017 INFO L459 AbstractCegarLoop]: Abstraction has 794 states and 837 transitions. [2018-04-11 20:06:18,017 INFO L460 AbstractCegarLoop]: Interpolant automaton has 119 states. [2018-04-11 20:06:18,017 INFO L276 IsEmpty]: Start isEmpty. Operand 794 states and 837 transitions. [2018-04-11 20:06:18,019 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 425 [2018-04-11 20:06:18,019 INFO L347 BasicCegarLoop]: Found error trace [2018-04-11 20:06:18,019 INFO L355 BasicCegarLoop]: trace histogram [41, 40, 40, 39, 39, 39, 39, 39, 39, 39, 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] [2018-04-11 20:06:18,019 INFO L408 AbstractCegarLoop]: === Iteration 46 === [__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]=== [2018-04-11 20:06:18,019 INFO L82 PathProgramCache]: Analyzing trace with hash -1636762405, now seen corresponding path program 38 times No working directory specified, using /storage/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 47 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 47 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2018-04-11 20:06:18,026 INFO L68 tionRefinementEngine]: Using refinement strategy FixedRefinementStrategy [2018-04-11 20:06:18,102 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-04-11 20:06:18,108 INFO L270 TraceCheckSpWp]: Computing forward predicates... [2018-04-11 20:06:19,677 INFO L134 CoverageAnalysis]: Checked inductivity of 7649 backedges. 1829 proven. 5820 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-04-11 20:06:19,677 INFO L314 TraceCheckSpWp]: Computing backward predicates... [2018-04-11 20:06:21,562 INFO L134 CoverageAnalysis]: Checked inductivity of 7649 backedges. 1829 proven. 5820 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-04-11 20:06:21,582 INFO L320 seRefinementStrategy]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2018-04-11 20:06:21,582 INFO L335 seRefinementStrategy]: Number of different interpolants: perfect sequences [] imperfect sequences [85, 85] total 124 [2018-04-11 20:06:21,583 INFO L442 AbstractCegarLoop]: Interpolant automaton has 124 states [2018-04-11 20:06:21,583 INFO L132 InterpolantAutomaton]: Constructing interpolant automaton starting with 124 interpolants. [2018-04-11 20:06:21,584 INFO L133 InterpolantAutomaton]: CoverageRelationStatistics Valid=1846, Invalid=13406, Unknown=0, NotChecked=0, Total=15252 [2018-04-11 20:06:21,584 INFO L87 Difference]: Start difference. First operand 794 states and 837 transitions. Second operand 124 states. [2018-04-11 20:06:25,872 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-04-11 20:06:25,872 INFO L93 Difference]: Finished difference Result 1624 states and 1713 transitions. [2018-04-11 20:06:25,873 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 126 states. [2018-04-11 20:06:25,873 INFO L78 Accepts]: Start accepts. Automaton has 124 states. Word has length 424 [2018-04-11 20:06:25,873 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-04-11 20:06:25,875 INFO L225 Difference]: With dead ends: 1624 [2018-04-11 20:06:25,875 INFO L226 Difference]: Without dead ends: 866 [2018-04-11 20:06:25,877 INFO L567 BasicCegarLoop]: 0 DeclaredPredicates, 950 GetRequests, 682 SyntacticMatches, 44 SemanticMatches, 224 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 15544 ImplicationChecksByTransitivity, 5.5s TimeCoverageRelationStatistics Valid=7838, Invalid=43012, Unknown=0, NotChecked=0, Total=50850 [2018-04-11 20:06:25,878 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 866 states. [2018-04-11 20:06:25,925 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 866 to 832. [2018-04-11 20:06:25,925 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 832 states. [2018-04-11 20:06:25,926 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 832 states to 832 states and 878 transitions. [2018-04-11 20:06:25,926 INFO L78 Accepts]: Start accepts. Automaton has 832 states and 878 transitions. Word has length 424 [2018-04-11 20:06:25,926 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-04-11 20:06:25,926 INFO L459 AbstractCegarLoop]: Abstraction has 832 states and 878 transitions. [2018-04-11 20:06:25,926 INFO L460 AbstractCegarLoop]: Interpolant automaton has 124 states. [2018-04-11 20:06:25,926 INFO L276 IsEmpty]: Start isEmpty. Operand 832 states and 878 transitions. [2018-04-11 20:06:25,928 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 435 [2018-04-11 20:06:25,928 INFO L347 BasicCegarLoop]: Found error trace [2018-04-11 20:06:25,928 INFO L355 BasicCegarLoop]: trace histogram [42, 41, 41, 40, 40, 40, 40, 40, 40, 40, 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] [2018-04-11 20:06:25,928 INFO L408 AbstractCegarLoop]: === Iteration 47 === [__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]=== [2018-04-11 20:06:25,929 INFO L82 PathProgramCache]: Analyzing trace with hash -1852659513, now seen corresponding path program 39 times No working directory specified, using /storage/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 48 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 48 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2018-04-11 20:06:25,934 INFO L68 tionRefinementEngine]: Using refinement strategy FixedRefinementStrategy [2018-04-11 20:06:26,012 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-04-11 20:06:26,017 INFO L270 TraceCheckSpWp]: Computing forward predicates... [2018-04-11 20:06:28,281 INFO L134 CoverageAnalysis]: Checked inductivity of 8045 backedges. 2137 proven. 5908 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-04-11 20:06:28,281 INFO L314 TraceCheckSpWp]: Computing backward predicates... [2018-04-11 20:06:30,091 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 [2018-04-11 20:06:30,091 INFO L267 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2018-04-11 20:06:30,094 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. [2018-04-11 20:06:30,095 INFO L202 ElimStorePlain]: Needed 2 recursive calls to eliminate 3 variables, input treesize:26, output treesize:13 [2018-04-11 20:06:30,840 INFO L134 CoverageAnalysis]: Checked inductivity of 8045 backedges. 1963 proven. 6082 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-04-11 20:06:30,860 INFO L320 seRefinementStrategy]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2018-04-11 20:06:30,860 INFO L335 seRefinementStrategy]: Number of different interpolants: perfect sequences [] imperfect sequences [83, 83] total 124 [2018-04-11 20:06:30,861 INFO L442 AbstractCegarLoop]: Interpolant automaton has 125 states [2018-04-11 20:06:30,861 INFO L132 InterpolantAutomaton]: Constructing interpolant automaton starting with 125 interpolants. [2018-04-11 20:06:30,862 INFO L133 InterpolantAutomaton]: CoverageRelationStatistics Valid=1854, Invalid=13646, Unknown=0, NotChecked=0, Total=15500 [2018-04-11 20:06:30,862 INFO L87 Difference]: Start difference. First operand 832 states and 878 transitions. Second operand 125 states. [2018-04-11 20:06:38,398 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-04-11 20:06:38,398 INFO L93 Difference]: Finished difference Result 833 states and 878 transitions. [2018-04-11 20:06:38,398 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 145 states. [2018-04-11 20:06:38,398 INFO L78 Accepts]: Start accepts. Automaton has 125 states. Word has length 434 [2018-04-11 20:06:38,399 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-04-11 20:06:38,400 INFO L225 Difference]: With dead ends: 833 [2018-04-11 20:06:38,400 INFO L226 Difference]: Without dead ends: 832 [2018-04-11 20:06:38,402 INFO L567 BasicCegarLoop]: 0 DeclaredPredicates, 991 GetRequests, 704 SyntacticMatches, 41 SemanticMatches, 246 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 22491 ImplicationChecksByTransitivity, 7.4s TimeCoverageRelationStatistics Valid=9141, Invalid=52115, Unknown=0, NotChecked=0, Total=61256 [2018-04-11 20:06:38,403 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 832 states. [2018-04-11 20:06:38,451 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 832 to 832. [2018-04-11 20:06:38,451 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 832 states. [2018-04-11 20:06:38,452 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 832 states to 832 states and 877 transitions. [2018-04-11 20:06:38,452 INFO L78 Accepts]: Start accepts. Automaton has 832 states and 877 transitions. Word has length 434 [2018-04-11 20:06:38,453 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-04-11 20:06:38,453 INFO L459 AbstractCegarLoop]: Abstraction has 832 states and 877 transitions. [2018-04-11 20:06:38,453 INFO L460 AbstractCegarLoop]: Interpolant automaton has 125 states. [2018-04-11 20:06:38,453 INFO L276 IsEmpty]: Start isEmpty. Operand 832 states and 877 transitions. [2018-04-11 20:06:38,455 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 445 [2018-04-11 20:06:38,455 INFO L347 BasicCegarLoop]: Found error trace [2018-04-11 20:06:38,455 INFO L355 BasicCegarLoop]: trace histogram [43, 42, 42, 41, 41, 41, 41, 41, 41, 41, 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] [2018-04-11 20:06:38,455 INFO L408 AbstractCegarLoop]: === Iteration 48 === [__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]=== [2018-04-11 20:06:38,455 INFO L82 PathProgramCache]: Analyzing trace with hash 500115507, now seen corresponding path program 40 times No working directory specified, using /storage/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 49 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 49 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2018-04-11 20:06:38,463 INFO L68 tionRefinementEngine]: Using refinement strategy FixedRefinementStrategy [2018-04-11 20:06:38,552 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-04-11 20:06:38,557 INFO L270 TraceCheckSpWp]: Computing forward predicates... [2018-04-11 20:06:40,277 INFO L134 CoverageAnalysis]: Checked inductivity of 8451 backedges. 2025 proven. 6426 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-04-11 20:06:40,277 INFO L314 TraceCheckSpWp]: Computing backward predicates... [2018-04-11 20:06:42,350 INFO L134 CoverageAnalysis]: Checked inductivity of 8451 backedges. 2025 proven. 6426 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-04-11 20:06:42,371 INFO L320 seRefinementStrategy]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2018-04-11 20:06:42,371 INFO L335 seRefinementStrategy]: Number of different interpolants: perfect sequences [] imperfect sequences [89, 89] total 130 [2018-04-11 20:06:42,371 INFO L442 AbstractCegarLoop]: Interpolant automaton has 130 states [2018-04-11 20:06:42,372 INFO L132 InterpolantAutomaton]: Constructing interpolant automaton starting with 130 interpolants. [2018-04-11 20:06:42,372 INFO L133 InterpolantAutomaton]: CoverageRelationStatistics Valid=2022, Invalid=14748, Unknown=0, NotChecked=0, Total=16770 [2018-04-11 20:06:42,373 INFO L87 Difference]: Start difference. First operand 832 states and 877 transitions. Second operand 130 states. [2018-04-11 20:06:47,253 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-04-11 20:06:47,254 INFO L93 Difference]: Finished difference Result 1700 states and 1793 transitions. [2018-04-11 20:06:47,254 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 132 states. [2018-04-11 20:06:47,254 INFO L78 Accepts]: Start accepts. Automaton has 130 states. Word has length 444 [2018-04-11 20:06:47,254 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-04-11 20:06:47,256 INFO L225 Difference]: With dead ends: 1700 [2018-04-11 20:06:47,256 INFO L226 Difference]: Without dead ends: 904 [2018-04-11 20:06:47,259 INFO L567 BasicCegarLoop]: 0 DeclaredPredicates, 995 GetRequests, 714 SyntacticMatches, 46 SemanticMatches, 235 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 17140 ImplicationChecksByTransitivity, 6.0s TimeCoverageRelationStatistics Valid=8597, Invalid=47335, Unknown=0, NotChecked=0, Total=55932 [2018-04-11 20:06:47,260 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 904 states. [2018-04-11 20:06:47,311 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 904 to 870. [2018-04-11 20:06:47,311 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 870 states. [2018-04-11 20:06:47,312 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 870 states to 870 states and 918 transitions. [2018-04-11 20:06:47,312 INFO L78 Accepts]: Start accepts. Automaton has 870 states and 918 transitions. Word has length 444 [2018-04-11 20:06:47,312 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-04-11 20:06:47,312 INFO L459 AbstractCegarLoop]: Abstraction has 870 states and 918 transitions. [2018-04-11 20:06:47,312 INFO L460 AbstractCegarLoop]: Interpolant automaton has 130 states. [2018-04-11 20:06:47,312 INFO L276 IsEmpty]: Start isEmpty. Operand 870 states and 918 transitions. [2018-04-11 20:06:47,314 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 455 [2018-04-11 20:06:47,314 INFO L347 BasicCegarLoop]: Found error trace [2018-04-11 20:06:47,314 INFO L355 BasicCegarLoop]: trace histogram [44, 43, 43, 42, 42, 42, 42, 42, 42, 42, 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] [2018-04-11 20:06:47,314 INFO L408 AbstractCegarLoop]: === Iteration 49 === [__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]=== [2018-04-11 20:06:47,314 INFO L82 PathProgramCache]: Analyzing trace with hash -9460193, now seen corresponding path program 41 times No working directory specified, using /storage/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 50 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 50 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2018-04-11 20:06:47,320 INFO L68 tionRefinementEngine]: Using refinement strategy FixedRefinementStrategy [2018-04-11 20:06:47,407 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-04-11 20:06:47,412 INFO L270 TraceCheckSpWp]: Computing forward predicates... [2018-04-11 20:06:49,875 INFO L134 CoverageAnalysis]: Checked inductivity of 8867 backedges. 2349 proven. 6518 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-04-11 20:06:49,875 INFO L314 TraceCheckSpWp]: Computing backward predicates... [2018-04-11 20:06:51,794 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 [2018-04-11 20:06:51,794 INFO L267 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2018-04-11 20:06:51,797 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. [2018-04-11 20:06:51,797 INFO L202 ElimStorePlain]: Needed 2 recursive calls to eliminate 3 variables, input treesize:26, output treesize:13 [2018-04-11 20:06:52,608 INFO L134 CoverageAnalysis]: Checked inductivity of 8867 backedges. 2166 proven. 6701 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-04-11 20:06:52,627 INFO L320 seRefinementStrategy]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2018-04-11 20:06:52,632 INFO L335 seRefinementStrategy]: Number of different interpolants: perfect sequences [] imperfect sequences [87, 87] total 130 [2018-04-11 20:06:52,632 INFO L442 AbstractCegarLoop]: Interpolant automaton has 131 states [2018-04-11 20:06:52,632 INFO L132 InterpolantAutomaton]: Constructing interpolant automaton starting with 131 interpolants. [2018-04-11 20:06:52,633 INFO L133 InterpolantAutomaton]: CoverageRelationStatistics Valid=2030, Invalid=15000, Unknown=0, NotChecked=0, Total=17030 [2018-04-11 20:06:52,633 INFO L87 Difference]: Start difference. First operand 870 states and 918 transitions. Second operand 131 states. [2018-04-11 20:07:00,680 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-04-11 20:07:00,680 INFO L93 Difference]: Finished difference Result 871 states and 918 transitions. [2018-04-11 20:07:00,680 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 152 states. [2018-04-11 20:07:00,680 INFO L78 Accepts]: Start accepts. Automaton has 131 states. Word has length 454 [2018-04-11 20:07:00,680 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-04-11 20:07:00,682 INFO L225 Difference]: With dead ends: 871 [2018-04-11 20:07:00,682 INFO L226 Difference]: Without dead ends: 870 [2018-04-11 20:07:00,685 INFO L567 BasicCegarLoop]: 0 DeclaredPredicates, 1037 GetRequests, 736 SyntacticMatches, 43 SemanticMatches, 258 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 24823 ImplicationChecksByTransitivity, 8.0s TimeCoverageRelationStatistics Valid=10016, Invalid=57324, Unknown=0, NotChecked=0, Total=67340 [2018-04-11 20:07:00,686 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 870 states. [2018-04-11 20:07:00,749 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 870 to 870. [2018-04-11 20:07:00,749 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 870 states. [2018-04-11 20:07:00,749 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 870 states to 870 states and 917 transitions. [2018-04-11 20:07:00,750 INFO L78 Accepts]: Start accepts. Automaton has 870 states and 917 transitions. Word has length 454 [2018-04-11 20:07:00,750 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-04-11 20:07:00,750 INFO L459 AbstractCegarLoop]: Abstraction has 870 states and 917 transitions. [2018-04-11 20:07:00,750 INFO L460 AbstractCegarLoop]: Interpolant automaton has 131 states. [2018-04-11 20:07:00,750 INFO L276 IsEmpty]: Start isEmpty. Operand 870 states and 917 transitions. [2018-04-11 20:07:00,752 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 465 [2018-04-11 20:07:00,752 INFO L347 BasicCegarLoop]: Found error trace [2018-04-11 20:07:00,752 INFO L355 BasicCegarLoop]: trace histogram [45, 44, 44, 43, 43, 43, 43, 43, 43, 43, 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] [2018-04-11 20:07:00,752 INFO L408 AbstractCegarLoop]: === Iteration 50 === [__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]=== [2018-04-11 20:07:00,752 INFO L82 PathProgramCache]: Analyzing trace with hash 468801419, now seen corresponding path program 42 times No working directory specified, using /storage/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 51 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 51 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2018-04-11 20:07:00,758 INFO L68 tionRefinementEngine]: Using refinement strategy FixedRefinementStrategy [2018-04-11 20:07:00,844 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-04-11 20:07:00,851 INFO L270 TraceCheckSpWp]: Computing forward predicates... [2018-04-11 20:07:02,711 INFO L134 CoverageAnalysis]: Checked inductivity of 9293 backedges. 2231 proven. 7062 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-04-11 20:07:02,711 INFO L314 TraceCheckSpWp]: Computing backward predicates... [2018-04-11 20:07:04,967 INFO L134 CoverageAnalysis]: Checked inductivity of 9293 backedges. 2231 proven. 7062 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-04-11 20:07:04,986 INFO L320 seRefinementStrategy]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2018-04-11 20:07:04,987 INFO L335 seRefinementStrategy]: Number of different interpolants: perfect sequences [] imperfect sequences [93, 93] total 136 [2018-04-11 20:07:04,987 INFO L442 AbstractCegarLoop]: Interpolant automaton has 136 states [2018-04-11 20:07:04,988 INFO L132 InterpolantAutomaton]: Constructing interpolant automaton starting with 136 interpolants. [2018-04-11 20:07:04,988 INFO L133 InterpolantAutomaton]: CoverageRelationStatistics Valid=2206, Invalid=16154, Unknown=0, NotChecked=0, Total=18360 [2018-04-11 20:07:04,989 INFO L87 Difference]: Start difference. First operand 870 states and 917 transitions. Second operand 136 states. [2018-04-11 20:07:10,421 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-04-11 20:07:10,421 INFO L93 Difference]: Finished difference Result 1776 states and 1873 transitions. [2018-04-11 20:07:10,421 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 138 states. [2018-04-11 20:07:10,421 INFO L78 Accepts]: Start accepts. Automaton has 136 states. Word has length 464 [2018-04-11 20:07:10,422 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-04-11 20:07:10,424 INFO L225 Difference]: With dead ends: 1776 [2018-04-11 20:07:10,424 INFO L226 Difference]: Without dead ends: 942 [2018-04-11 20:07:10,427 INFO L567 BasicCegarLoop]: 0 DeclaredPredicates, 1040 GetRequests, 746 SyntacticMatches, 48 SemanticMatches, 246 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 18814 ImplicationChecksByTransitivity, 6.6s TimeCoverageRelationStatistics Valid=9391, Invalid=51865, Unknown=0, NotChecked=0, Total=61256 [2018-04-11 20:07:10,427 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 942 states. [2018-04-11 20:07:10,482 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 942 to 908. [2018-04-11 20:07:10,482 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 908 states. [2018-04-11 20:07:10,483 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 908 states to 908 states and 958 transitions. [2018-04-11 20:07:10,483 INFO L78 Accepts]: Start accepts. Automaton has 908 states and 958 transitions. Word has length 464 [2018-04-11 20:07:10,483 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-04-11 20:07:10,483 INFO L459 AbstractCegarLoop]: Abstraction has 908 states and 958 transitions. [2018-04-11 20:07:10,483 INFO L460 AbstractCegarLoop]: Interpolant automaton has 136 states. [2018-04-11 20:07:10,483 INFO L276 IsEmpty]: Start isEmpty. Operand 908 states and 958 transitions. [2018-04-11 20:07:10,485 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 475 [2018-04-11 20:07:10,485 INFO L347 BasicCegarLoop]: Found error trace [2018-04-11 20:07:10,486 INFO L355 BasicCegarLoop]: trace histogram [46, 45, 45, 44, 44, 44, 44, 44, 44, 44, 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] [2018-04-11 20:07:10,486 INFO L408 AbstractCegarLoop]: === Iteration 51 === [__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]=== [2018-04-11 20:07:10,486 INFO L82 PathProgramCache]: Analyzing trace with hash 980658039, now seen corresponding path program 43 times No working directory specified, using /storage/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 52 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 52 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2018-04-11 20:07:10,491 INFO L68 tionRefinementEngine]: Using refinement strategy FixedRefinementStrategy [2018-04-11 20:07:10,576 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-04-11 20:07:10,583 INFO L270 TraceCheckSpWp]: Computing forward predicates... [2018-04-11 20:07:13,270 INFO L134 CoverageAnalysis]: Checked inductivity of 9729 backedges. 2571 proven. 7158 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-04-11 20:07:13,270 INFO L314 TraceCheckSpWp]: Computing backward predicates... [2018-04-11 20:07:15,400 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 [2018-04-11 20:07:15,400 INFO L267 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2018-04-11 20:07:15,402 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. [2018-04-11 20:07:15,403 INFO L202 ElimStorePlain]: Needed 2 recursive calls to eliminate 3 variables, input treesize:26, output treesize:13 [2018-04-11 20:07:16,300 INFO L134 CoverageAnalysis]: Checked inductivity of 9729 backedges. 2379 proven. 7350 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-04-11 20:07:16,320 INFO L320 seRefinementStrategy]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2018-04-11 20:07:16,324 INFO L335 seRefinementStrategy]: Number of different interpolants: perfect sequences [] imperfect sequences [91, 91] total 136 [2018-04-11 20:07:16,324 INFO L442 AbstractCegarLoop]: Interpolant automaton has 137 states [2018-04-11 20:07:16,325 INFO L132 InterpolantAutomaton]: Constructing interpolant automaton starting with 137 interpolants. [2018-04-11 20:07:16,325 INFO L133 InterpolantAutomaton]: CoverageRelationStatistics Valid=2214, Invalid=16418, Unknown=0, NotChecked=0, Total=18632 [2018-04-11 20:07:16,325 INFO L87 Difference]: Start difference. First operand 908 states and 958 transitions. Second operand 137 states. [2018-04-11 20:07:25,296 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-04-11 20:07:25,296 INFO L93 Difference]: Finished difference Result 909 states and 958 transitions. [2018-04-11 20:07:25,296 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 159 states. [2018-04-11 20:07:25,296 INFO L78 Accepts]: Start accepts. Automaton has 137 states. Word has length 474 [2018-04-11 20:07:25,297 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-04-11 20:07:25,299 INFO L225 Difference]: With dead ends: 909 [2018-04-11 20:07:25,299 INFO L226 Difference]: Without dead ends: 908 [2018-04-11 20:07:25,302 INFO L567 BasicCegarLoop]: 0 DeclaredPredicates, 1083 GetRequests, 768 SyntacticMatches, 45 SemanticMatches, 270 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 27270 ImplicationChecksByTransitivity, 8.7s TimeCoverageRelationStatistics Valid=10931, Invalid=62781, Unknown=0, NotChecked=0, Total=73712 [2018-04-11 20:07:25,302 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 908 states. [2018-04-11 20:07:25,357 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 908 to 908. [2018-04-11 20:07:25,357 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 908 states. [2018-04-11 20:07:25,358 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 908 states to 908 states and 957 transitions. [2018-04-11 20:07:25,358 INFO L78 Accepts]: Start accepts. Automaton has 908 states and 957 transitions. Word has length 474 [2018-04-11 20:07:25,358 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-04-11 20:07:25,358 INFO L459 AbstractCegarLoop]: Abstraction has 908 states and 957 transitions. [2018-04-11 20:07:25,358 INFO L460 AbstractCegarLoop]: Interpolant automaton has 137 states. [2018-04-11 20:07:25,359 INFO L276 IsEmpty]: Start isEmpty. Operand 908 states and 957 transitions. [2018-04-11 20:07:25,361 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 485 [2018-04-11 20:07:25,361 INFO L347 BasicCegarLoop]: Found error trace [2018-04-11 20:07:25,361 INFO L355 BasicCegarLoop]: trace histogram [47, 46, 46, 45, 45, 45, 45, 45, 45, 45, 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] [2018-04-11 20:07:25,362 INFO L408 AbstractCegarLoop]: === Iteration 52 === [__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]=== [2018-04-11 20:07:25,362 INFO L82 PathProgramCache]: Analyzing trace with hash 1967491811, now seen corresponding path program 44 times No working directory specified, using /storage/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 53 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 53 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2018-04-11 20:07:25,367 INFO L68 tionRefinementEngine]: Using refinement strategy FixedRefinementStrategy [2018-04-11 20:07:25,454 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-04-11 20:07:25,460 INFO L270 TraceCheckSpWp]: Computing forward predicates... [2018-04-11 20:07:27,484 INFO L134 CoverageAnalysis]: Checked inductivity of 10175 backedges. 2447 proven. 7728 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-04-11 20:07:27,484 INFO L314 TraceCheckSpWp]: Computing backward predicates... Received shutdown request... [2018-04-11 20:07:28,681 INFO L175 TraceCheckSpWp]: Timeout while computing interpolants [2018-04-11 20:07:28,681 WARN L519 AbstractCegarLoop]: Verification canceled [2018-04-11 20:07:28,685 WARN L197 ceAbstractionStarter]: Timeout [2018-04-11 20:07:28,685 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 11.04 08:07:28 BoogieIcfgContainer [2018-04-11 20:07:28,685 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2018-04-11 20:07:28,686 INFO L168 Benchmark]: Toolchain (without parser) took 233596.04 ms. Allocated memory was 304.1 MB in the beginning and 892.3 MB in the end (delta: 588.3 MB). Free memory was 241.7 MB in the beginning and 520.8 MB in the end (delta: -279.1 MB). Peak memory consumption was 309.2 MB. Max. memory is 5.3 GB. [2018-04-11 20:07:28,687 INFO L168 Benchmark]: CDTParser took 0.27 ms. Allocated memory is still 304.1 MB. Free memory is still 265.2 MB. There was no memory consumed. Max. memory is 5.3 GB. [2018-04-11 20:07:28,687 INFO L168 Benchmark]: CACSL2BoogieTranslator took 316.79 ms. Allocated memory is still 304.1 MB. Free memory was 241.7 MB in the beginning and 217.6 MB in the end (delta: 24.1 MB). Peak memory consumption was 24.1 MB. Max. memory is 5.3 GB. [2018-04-11 20:07:28,687 INFO L168 Benchmark]: Boogie Preprocessor took 55.37 ms. Allocated memory is still 304.1 MB. Free memory was 217.6 MB in the beginning and 215.6 MB in the end (delta: 2.0 MB). Peak memory consumption was 2.0 MB. Max. memory is 5.3 GB. [2018-04-11 20:07:28,687 INFO L168 Benchmark]: RCFGBuilder took 499.19 ms. Allocated memory was 304.1 MB in the beginning and 462.9 MB in the end (delta: 158.9 MB). Free memory was 215.6 MB in the beginning and 399.0 MB in the end (delta: -183.4 MB). Peak memory consumption was 22.7 MB. Max. memory is 5.3 GB. [2018-04-11 20:07:28,688 INFO L168 Benchmark]: TraceAbstraction took 232720.57 ms. Allocated memory was 462.9 MB in the beginning and 892.3 MB in the end (delta: 429.4 MB). Free memory was 399.0 MB in the beginning and 520.8 MB in the end (delta: -121.8 MB). Peak memory consumption was 307.6 MB. Max. memory is 5.3 GB. [2018-04-11 20:07:28,689 INFO L344 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.27 ms. Allocated memory is still 304.1 MB. Free memory is still 265.2 MB. There was no memory consumed. Max. memory is 5.3 GB. * CACSL2BoogieTranslator took 316.79 ms. Allocated memory is still 304.1 MB. Free memory was 241.7 MB in the beginning and 217.6 MB in the end (delta: 24.1 MB). Peak memory consumption was 24.1 MB. Max. memory is 5.3 GB. * Boogie Preprocessor took 55.37 ms. Allocated memory is still 304.1 MB. Free memory was 217.6 MB in the beginning and 215.6 MB in the end (delta: 2.0 MB). Peak memory consumption was 2.0 MB. Max. memory is 5.3 GB. * RCFGBuilder took 499.19 ms. Allocated memory was 304.1 MB in the beginning and 462.9 MB in the end (delta: 158.9 MB). Free memory was 215.6 MB in the beginning and 399.0 MB in the end (delta: -183.4 MB). Peak memory consumption was 22.7 MB. Max. memory is 5.3 GB. * TraceAbstraction took 232720.57 ms. Allocated memory was 462.9 MB in the beginning and 892.3 MB in the end (delta: 429.4 MB). Free memory was 399.0 MB in the beginning and 520.8 MB in the end (delta: -121.8 MB). Peak memory consumption was 307.6 MB. Max. memory is 5.3 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - TimeoutResultAtElement [Line: 545]: Timeout (TraceAbstraction) Unable to prove that pointer dereference always succeeds (line 545). Cancelled while BasicCegarLoop was analyzing trace of length 485 with TraceHistMax 47, while TraceCheckSpWp was constructing backward predicates, while PredicateComparison was comparing new predicate (quantifier-free) to 128 known predicates. - TimeoutResultAtElement [Line: 547]: Timeout (TraceAbstraction) Unable to prove that pointer dereference always succeeds (line 547). Cancelled while BasicCegarLoop was analyzing trace of length 485 with TraceHistMax 47, while TraceCheckSpWp was constructing backward predicates, while PredicateComparison was comparing new predicate (quantifier-free) to 128 known predicates. - TimeoutResultAtElement [Line: 545]: Timeout (TraceAbstraction) Unable to prove that pointer dereference always succeeds (line 545). Cancelled while BasicCegarLoop was analyzing trace of length 485 with TraceHistMax 47, while TraceCheckSpWp was constructing backward predicates, while PredicateComparison was comparing new predicate (quantifier-free) to 128 known predicates. - TimeoutResultAtElement [Line: 548]: Timeout (TraceAbstraction) Unable to prove that pointer dereference always succeeds (line 548). Cancelled while BasicCegarLoop was analyzing trace of length 485 with TraceHistMax 47, while TraceCheckSpWp was constructing backward predicates, while PredicateComparison was comparing new predicate (quantifier-free) to 128 known predicates. - TimeoutResultAtElement [Line: 547]: Timeout (TraceAbstraction) Unable to prove that pointer dereference always succeeds (line 547). Cancelled while BasicCegarLoop was analyzing trace of length 485 with TraceHistMax 47, while TraceCheckSpWp was constructing backward predicates, while PredicateComparison was comparing new predicate (quantifier-free) to 128 known predicates. - TimeoutResultAtElement [Line: 545]: Timeout (TraceAbstraction) Unable to prove that pointer dereference always succeeds (line 545). Cancelled while BasicCegarLoop was analyzing trace of length 485 with TraceHistMax 47, while TraceCheckSpWp was constructing backward predicates, while PredicateComparison was comparing new predicate (quantifier-free) to 128 known predicates. - TimeoutResultAtElement [Line: 547]: Timeout (TraceAbstraction) Unable to prove that pointer dereference always succeeds (line 547). Cancelled while BasicCegarLoop was analyzing trace of length 485 with TraceHistMax 47, while TraceCheckSpWp was constructing backward predicates, while PredicateComparison was comparing new predicate (quantifier-free) to 128 known predicates. - TimeoutResultAtElement [Line: 548]: Timeout (TraceAbstraction) Unable to prove that pointer dereference always succeeds (line 548). Cancelled while BasicCegarLoop was analyzing trace of length 485 with TraceHistMax 47, while TraceCheckSpWp was constructing backward predicates, while PredicateComparison was comparing new predicate (quantifier-free) to 128 known predicates. - TimeoutResultAtElement [Line: 547]: Timeout (TraceAbstraction) Unable to prove that pointer dereference always succeeds (line 547). Cancelled while BasicCegarLoop was analyzing trace of length 485 with TraceHistMax 47, while TraceCheckSpWp was constructing backward predicates, while PredicateComparison was comparing new predicate (quantifier-free) to 128 known predicates. - TimeoutResultAtElement [Line: 546]: Timeout (TraceAbstraction) Unable to prove that pointer dereference always succeeds (line 546). Cancelled while BasicCegarLoop was analyzing trace of length 485 with TraceHistMax 47, while TraceCheckSpWp was constructing backward predicates, while PredicateComparison was comparing new predicate (quantifier-free) to 128 known predicates. - TimeoutResultAtElement [Line: 546]: Timeout (TraceAbstraction) Unable to prove that pointer dereference always succeeds (line 546). Cancelled while BasicCegarLoop was analyzing trace of length 485 with TraceHistMax 47, while TraceCheckSpWp was constructing backward predicates, while PredicateComparison was comparing new predicate (quantifier-free) to 128 known predicates. - TimeoutResultAtElement [Line: 545]: Timeout (TraceAbstraction) Unable to prove that pointer dereference always succeeds (line 545). Cancelled while BasicCegarLoop was analyzing trace of length 485 with TraceHistMax 47, while TraceCheckSpWp was constructing backward predicates, while PredicateComparison was comparing new predicate (quantifier-free) to 128 known predicates. - TimeoutResultAtElement [Line: 553]: Timeout (TraceAbstraction) Unable to prove that all allocated memory was freed (line 553). Cancelled while BasicCegarLoop was analyzing trace of length 485 with TraceHistMax 47, while TraceCheckSpWp was constructing backward predicates, while PredicateComparison was comparing new predicate (quantifier-free) to 128 known predicates. - StatisticsResult: Ultimate Automizer benchmark data CFG has 6 procedures, 77 locations, 13 error locations. TIMEOUT Result, 232.6s OverallTime, 52 OverallIterations, 47 TraceHistogramMax, 134.1s AutomataDifference, 0.0s DeadEndRemovalTime, 0.0s HoareAnnotationTime, HoareTripleCheckerStatistics: 10128 SDtfs, 41461 SDslu, 152783 SDs, 0 SdLazy, 130679 SolverSat, 3522 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 51.8s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 26134 GetRequests, 18864 SyntacticMatches, 1128 SemanticMatches, 6142 ConstructedPredicates, 6 IntricatePredicates, 0 DeprecatedPredicates, 359335 ImplicationChecksByTransitivity, 140.2s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=908occurred in iteration=50, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s AbstIntTime, 0 AbstIntIterations, 0 AbstIntStrong, NaN AbsIntWeakeningRatio, NaN AbsIntAvgWeakeningVarsNumRemoved, NaN AbsIntAvgWeakenedConjuncts, 0.0s DumpTime, AutomataMinimizationStatistics: 1.5s AutomataMinimizationTime, 51 MinimizatonAttempts, 855 StatesRemovedByMinimization, 28 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TraceCheckStatistics: 0.5s SsaConstructionTime, 2.0s SatisfiabilityAnalysisTime, 89.3s InterpolantComputationTime, 11604 NumberOfCodeBlocks, 11604 NumberOfCodeBlocksAsserted, 51 NumberOfCheckSat, 23106 ConstructedInterpolants, 5444 QuantifiedInterpolants, 57049560 SizeOfPredicates, 2188 NumberOfNonLiveVariables, 26200 ConjunctsInSsa, 2250 ConjunctsInUnsatCore, 102 InterpolantComputations, 14 PerfectInterpolantSequences, 73052/296130 InterpolantCoveringCapability, InvariantSynthesisStatistics: No data available, InterpolantConsolidationStatistics: No data available, ReuseStatistics: No data available RESULT: Ultimate could not prove your program: Timeout Written .csv to /storage/ultimate/releaseScripts/default/UAutomizer-linux/../../../releaseScripts/default/UAutomizer-linux/csv/bubblesort-alloca_true-valid-memsafety_true-termination.i_svcomp-DerefFreeMemtrack-32bit-Automizer_Fixed_noBitfields+AI_EQ_SS.epf_AutomizerC.xml/Csv-Benchmark-0-2018-04-11_20-07-28-695.csv Written .csv to /storage/ultimate/releaseScripts/default/UAutomizer-linux/../../../releaseScripts/default/UAutomizer-linux/csv/bubblesort-alloca_true-valid-memsafety_true-termination.i_svcomp-DerefFreeMemtrack-32bit-Automizer_Fixed_noBitfields+AI_EQ_SS.epf_AutomizerC.xml/Csv-TraceAbstractionBenchmarks-0-2018-04-11_20-07-28-695.csv Completed graceful shutdown