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/java_BubbleSort-alloca_true-valid-memsafety_true-termination.i -------------------------------------------------------------------------------- This is Ultimate 0.1.23-835382a-m [2018-04-05 15:50:56,694 INFO L170 SettingsManager]: Resetting all preferences to default values... [2018-04-05 15:50:56,701 INFO L174 SettingsManager]: Resetting UltimateCore preferences to default values [2018-04-05 15:50:56,749 INFO L177 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... 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[2018-04-05 15:50:56,852 INFO L98 SettingsManager]: Beginning loading settings from /storage/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/settings/ai/eq-bench/svcomp-DerefFreeMemtrack-32bit-Automizer_Fixed_noBitfields+AI_EQ_SS.epf [2018-04-05 15:50:56,907 INFO L110 SettingsManager]: Loading preferences was successful [2018-04-05 15:50:56,908 INFO L112 SettingsManager]: Preferences different from defaults after loading the file: [2018-04-05 15:50:56,908 INFO L131 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2018-04-05 15:50:56,908 INFO L133 SettingsManager]: * ultimate.logging.details=de.uni_freiburg.informatik.ultimate.plugins.icfgtransformation=DEBUG; [2018-04-05 15:50:56,910 INFO L131 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2018-04-05 15:50:56,910 INFO L133 SettingsManager]: * to procedures, called more than once=true [2018-04-05 15:50:56,911 INFO L131 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2018-04-05 15:50:56,911 INFO L133 SettingsManager]: * Abstract domain for RCFG-of-the-future=VPDomain [2018-04-05 15:50:56,911 INFO L133 SettingsManager]: * Use the RCFG-of-the-future interface=true [2018-04-05 15:50:56,913 INFO L131 SettingsManager]: Preferences of LTL2Aut differ from their defaults: [2018-04-05 15:50:56,913 INFO L133 SettingsManager]: * Property to check=[] a a: x > 42 [2018-04-05 15:50:56,914 INFO L131 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2018-04-05 15:50:56,914 INFO L133 SettingsManager]: * sizeof long=4 [2018-04-05 15:50:56,914 INFO L133 SettingsManager]: * Check unreachability of error function in SV-COMP mode=false [2018-04-05 15:50:56,914 INFO L133 SettingsManager]: * Overapproximate operations on floating types=true [2018-04-05 15:50:56,914 INFO L133 SettingsManager]: * sizeof POINTER=4 [2018-04-05 15:50:56,915 INFO L133 SettingsManager]: * Check division by zero=IGNORE [2018-04-05 15:50:56,915 INFO L133 SettingsManager]: * Check for the main procedure if all allocated memory was freed=true [2018-04-05 15:50:56,915 INFO L133 SettingsManager]: * SV-COMP memtrack compatibility mode=true [2018-04-05 15:50:56,915 INFO L133 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2018-04-05 15:50:56,915 INFO L133 SettingsManager]: * sizeof long double=12 [2018-04-05 15:50:56,917 INFO L131 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2018-04-05 15:50:56,917 INFO L133 SettingsManager]: * Size of a code block=SingleStatement [2018-04-05 15:50:56,917 INFO L133 SettingsManager]: * Add additional assume for each assert=false [2018-04-05 15:50:56,917 INFO L133 SettingsManager]: * SMT solver=External_DefaultMode [2018-04-05 15:50:56,917 INFO L133 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2018-04-05 15:50:56,918 INFO L131 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2018-04-05 15:50:56,918 INFO L133 SettingsManager]: * Interpolant automaton=TWOTRACK [2018-04-05 15:50:56,918 INFO L133 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2018-04-05 15:50:56,918 INFO L133 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2018-04-05 15:50:56,918 INFO L133 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2018-04-05 15:50:56,919 INFO L133 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2018-04-05 15:50:56,919 INFO L133 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2018-04-05 15:50:56,920 INFO L131 SettingsManager]: Preferences of IcfgTransformer differ from their defaults: [2018-04-05 15:50:56,921 INFO L133 SettingsManager]: * TransformationType=HEAP_SEPARATOR [2018-04-05 15:50:56,921 INFO L131 SettingsManager]: Preferences of Boogie Printer differ from their defaults: [2018-04-05 15:50:56,921 INFO L133 SettingsManager]: * Dump path:=C:\Users\alex\AppData\Local\Temp\ [2018-04-05 15:50:56,990 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2018-04-05 15:50:57,022 INFO L266 ainManager$Toolchain]: [Toolchain 1]: Parser(s) successfully (re)initialized [2018-04-05 15:50:57,035 INFO L222 ainManager$Toolchain]: [Toolchain 1]: Toolchain data selected. [2018-04-05 15:50:57,037 INFO L271 PluginConnector]: Initializing CDTParser... [2018-04-05 15:50:57,038 INFO L276 PluginConnector]: CDTParser initialized [2018-04-05 15:50:57,041 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/array-memsafety/java_BubbleSort-alloca_true-valid-memsafety_true-termination.i [2018-04-05 15:50:57,561 INFO L225 CDTParser]: Created temporary CDT project at /storage/ultimate/releaseScripts/default/UAutomizer-linux/data/FLAGf3b4293e1 [2018-04-05 15:50:58,083 INFO L287 CDTParser]: IsIndexed: true [2018-04-05 15:50:58,083 INFO L288 CDTParser]: Found 1 translation units. [2018-04-05 15:50:58,086 INFO L168 CDTParser]: Scanning java_BubbleSort-alloca_true-valid-memsafety_true-termination.i [2018-04-05 15:50:58,135 INFO L210 ultiparseSymbolTable]: Include resolver: [2018-04-05 15:50:58,135 INFO L215 ultiparseSymbolTable]: [2018-04-05 15:50:58,135 INFO L218 ultiparseSymbolTable]: Function table: [2018-04-05 15:50:58,136 INFO L221 ultiparseSymbolTable]: Function definition of __U_MULTI_fjava_BubbleSort_alloca_true_valid_memsafety_true_termination_i____bswap_64 ('__bswap_64') in java_BubbleSort-alloca_true-valid-memsafety_true-termination.i [2018-04-05 15:50:58,141 INFO L221 ultiparseSymbolTable]: Function definition of null ('main') in java_BubbleSort-alloca_true-valid-memsafety_true-termination.i [2018-04-05 15:50:58,141 INFO L221 ultiparseSymbolTable]: Function definition of __U_MULTI_fjava_BubbleSort_alloca_true_valid_memsafety_true_termination_i____bswap_32 ('__bswap_32') in java_BubbleSort-alloca_true-valid-memsafety_true-termination.i [2018-04-05 15:50:58,141 INFO L221 ultiparseSymbolTable]: Function definition of __U_MULTI_fjava_BubbleSort_alloca_true_valid_memsafety_true_termination_i__sort ('sort') in java_BubbleSort-alloca_true-valid-memsafety_true-termination.i [2018-04-05 15:50:58,141 INFO L227 ultiparseSymbolTable]: Global variable table: [2018-04-05 15:50:58,142 INFO L230 ultiparseSymbolTable]: Global variable declaration of __U_MULTI_fjava_BubbleSort_alloca_true_valid_memsafety_true_termination_i____off_t in java_BubbleSort-alloca_true-valid-memsafety_true-termination.i [2018-04-05 15:50:58,142 INFO L230 ultiparseSymbolTable]: Global variable declaration of __U_MULTI_fjava_BubbleSort_alloca_true_valid_memsafety_true_termination_i____quad_t in java_BubbleSort-alloca_true-valid-memsafety_true-termination.i [2018-04-05 15:50:58,142 INFO L230 ultiparseSymbolTable]: Global variable declaration of __U_MULTI_fjava_BubbleSort_alloca_true_valid_memsafety_true_termination_i____ino64_t in java_BubbleSort-alloca_true-valid-memsafety_true-termination.i [2018-04-05 15:50:58,142 INFO L230 ultiparseSymbolTable]: Global variable declaration of __U_MULTI_fjava_BubbleSort_alloca_true_valid_memsafety_true_termination_i____uint16_t in java_BubbleSort-alloca_true-valid-memsafety_true-termination.i [2018-04-05 15:50:58,142 INFO L230 ultiparseSymbolTable]: Global variable declaration of __U_MULTI_fjava_BubbleSort_alloca_true_valid_memsafety_true_termination_i____fsid_t in java_BubbleSort-alloca_true-valid-memsafety_true-termination.i [2018-04-05 15:50:58,142 INFO L230 ultiparseSymbolTable]: Global variable declaration of __U_MULTI_fjava_BubbleSort_alloca_true_valid_memsafety_true_termination_i____gid_t in java_BubbleSort-alloca_true-valid-memsafety_true-termination.i [2018-04-05 15:50:58,142 INFO L230 ultiparseSymbolTable]: Global variable declaration of __U_MULTI_fjava_BubbleSort_alloca_true_valid_memsafety_true_termination_i__daddr_t in java_BubbleSort-alloca_true-valid-memsafety_true-termination.i [2018-04-05 15:50:58,142 INFO L230 ultiparseSymbolTable]: Global variable declaration of __U_MULTI_fjava_BubbleSort_alloca_true_valid_memsafety_true_termination_i__pthread_barrier_t in java_BubbleSort-alloca_true-valid-memsafety_true-termination.i [2018-04-05 15:50:58,143 INFO L230 ultiparseSymbolTable]: Global variable declaration of __U_MULTI_fjava_BubbleSort_alloca_true_valid_memsafety_true_termination_i__u_long in java_BubbleSort-alloca_true-valid-memsafety_true-termination.i [2018-04-05 15:50:58,143 INFO L230 ultiparseSymbolTable]: Global variable declaration of __U_MULTI_fjava_BubbleSort_alloca_true_valid_memsafety_true_termination_i__pthread_rwlockattr_t in java_BubbleSort-alloca_true-valid-memsafety_true-termination.i [2018-04-05 15:50:58,143 INFO L230 ultiparseSymbolTable]: Global variable declaration of __U_MULTI_fjava_BubbleSort_alloca_true_valid_memsafety_true_termination_i____u_quad_t in java_BubbleSort-alloca_true-valid-memsafety_true-termination.i [2018-04-05 15:50:58,143 INFO L230 ultiparseSymbolTable]: Global variable declaration of __U_MULTI_fjava_BubbleSort_alloca_true_valid_memsafety_true_termination_i__fd_mask in java_BubbleSort-alloca_true-valid-memsafety_true-termination.i [2018-04-05 15:50:58,143 INFO L230 ultiparseSymbolTable]: Global variable declaration of __U_MULTI_fjava_BubbleSort_alloca_true_valid_memsafety_true_termination_i____loff_t in java_BubbleSort-alloca_true-valid-memsafety_true-termination.i [2018-04-05 15:50:58,143 INFO L230 ultiparseSymbolTable]: Global variable declaration of __U_MULTI_fjava_BubbleSort_alloca_true_valid_memsafety_true_termination_i__clock_t in java_BubbleSort-alloca_true-valid-memsafety_true-termination.i [2018-04-05 15:50:58,143 INFO L230 ultiparseSymbolTable]: Global variable declaration of __U_MULTI_fjava_BubbleSort_alloca_true_valid_memsafety_true_termination_i__suseconds_t in java_BubbleSort-alloca_true-valid-memsafety_true-termination.i [2018-04-05 15:50:58,143 INFO L230 ultiparseSymbolTable]: Global variable declaration of __U_MULTI_fjava_BubbleSort_alloca_true_valid_memsafety_true_termination_i____syscall_slong_t in java_BubbleSort-alloca_true-valid-memsafety_true-termination.i [2018-04-05 15:50:58,144 INFO L230 ultiparseSymbolTable]: Global variable declaration of __U_MULTI_fjava_BubbleSort_alloca_true_valid_memsafety_true_termination_i__clockid_t in java_BubbleSort-alloca_true-valid-memsafety_true-termination.i [2018-04-05 15:50:58,144 INFO L230 ultiparseSymbolTable]: Global variable declaration of __U_MULTI_fjava_BubbleSort_alloca_true_valid_memsafety_true_termination_i__fsid_t in java_BubbleSort-alloca_true-valid-memsafety_true-termination.i [2018-04-05 15:50:58,144 INFO L230 ultiparseSymbolTable]: Global variable declaration of __U_MULTI_fjava_BubbleSort_alloca_true_valid_memsafety_true_termination_i____key_t in java_BubbleSort-alloca_true-valid-memsafety_true-termination.i [2018-04-05 15:50:58,144 INFO L230 ultiparseSymbolTable]: Global variable declaration of __U_MULTI_fjava_BubbleSort_alloca_true_valid_memsafety_true_termination_i____uint8_t in java_BubbleSort-alloca_true-valid-memsafety_true-termination.i [2018-04-05 15:50:58,144 INFO L230 ultiparseSymbolTable]: Global variable declaration of __U_MULTI_fjava_BubbleSort_alloca_true_valid_memsafety_true_termination_i____clock_t in java_BubbleSort-alloca_true-valid-memsafety_true-termination.i [2018-04-05 15:50:58,144 INFO L230 ultiparseSymbolTable]: Global variable declaration of __U_MULTI_fjava_BubbleSort_alloca_true_valid_memsafety_true_termination_i____WAIT_STATUS in java_BubbleSort-alloca_true-valid-memsafety_true-termination.i [2018-04-05 15:50:58,144 INFO L230 ultiparseSymbolTable]: Global variable declaration of __U_MULTI_fjava_BubbleSort_alloca_true_valid_memsafety_true_termination_i__u_quad_t in java_BubbleSort-alloca_true-valid-memsafety_true-termination.i [2018-04-05 15:50:58,145 INFO L230 ultiparseSymbolTable]: Global variable declaration of __U_MULTI_fjava_BubbleSort_alloca_true_valid_memsafety_true_termination_i__ushort in java_BubbleSort-alloca_true-valid-memsafety_true-termination.i [2018-04-05 15:50:58,152 INFO L230 ultiparseSymbolTable]: Global variable declaration of __U_MULTI_fjava_BubbleSort_alloca_true_valid_memsafety_true_termination_i__pthread_condattr_t in java_BubbleSort-alloca_true-valid-memsafety_true-termination.i [2018-04-05 15:50:58,152 INFO L230 ultiparseSymbolTable]: Global variable declaration of __U_MULTI_fjava_BubbleSort_alloca_true_valid_memsafety_true_termination_i____off64_t in java_BubbleSort-alloca_true-valid-memsafety_true-termination.i [2018-04-05 15:50:58,152 INFO L230 ultiparseSymbolTable]: Global variable declaration of __U_MULTI_fjava_BubbleSort_alloca_true_valid_memsafety_true_termination_i__loff_t in java_BubbleSort-alloca_true-valid-memsafety_true-termination.i [2018-04-05 15:50:58,153 INFO L230 ultiparseSymbolTable]: Global variable declaration of __U_MULTI_fjava_BubbleSort_alloca_true_valid_memsafety_true_termination_i__int64_t in java_BubbleSort-alloca_true-valid-memsafety_true-termination.i [2018-04-05 15:50:58,153 INFO L230 ultiparseSymbolTable]: Global variable declaration of __U_MULTI_fjava_BubbleSort_alloca_true_valid_memsafety_true_termination_i____pid_t in java_BubbleSort-alloca_true-valid-memsafety_true-termination.i [2018-04-05 15:50:58,153 INFO L230 ultiparseSymbolTable]: Global variable declaration of __U_MULTI_fjava_BubbleSort_alloca_true_valid_memsafety_true_termination_i____daddr_t in java_BubbleSort-alloca_true-valid-memsafety_true-termination.i [2018-04-05 15:50:58,153 INFO L230 ultiparseSymbolTable]: Global variable declaration of __U_MULTI_fjava_BubbleSort_alloca_true_valid_memsafety_true_termination_i__pthread_key_t in java_BubbleSort-alloca_true-valid-memsafety_true-termination.i [2018-04-05 15:50:58,153 INFO L230 ultiparseSymbolTable]: Global variable declaration of __U_MULTI_fjava_BubbleSort_alloca_true_valid_memsafety_true_termination_i__nlink_t in java_BubbleSort-alloca_true-valid-memsafety_true-termination.i [2018-04-05 15:50:58,153 INFO L230 ultiparseSymbolTable]: Global variable declaration of __U_MULTI_fjava_BubbleSort_alloca_true_valid_memsafety_true_termination_i____fd_mask in java_BubbleSort-alloca_true-valid-memsafety_true-termination.i [2018-04-05 15:50:58,155 INFO L230 ultiparseSymbolTable]: Global variable declaration of __U_MULTI_fjava_BubbleSort_alloca_true_valid_memsafety_true_termination_i__pthread_rwlock_t in java_BubbleSort-alloca_true-valid-memsafety_true-termination.i [2018-04-05 15:50:58,155 INFO L230 ultiparseSymbolTable]: Global variable declaration of __U_MULTI_fjava_BubbleSort_alloca_true_valid_memsafety_true_termination_i__uint in java_BubbleSort-alloca_true-valid-memsafety_true-termination.i [2018-04-05 15:50:58,156 INFO L230 ultiparseSymbolTable]: Global variable declaration of __U_MULTI_fjava_BubbleSort_alloca_true_valid_memsafety_true_termination_i____uid_t in java_BubbleSort-alloca_true-valid-memsafety_true-termination.i [2018-04-05 15:50:58,156 INFO L230 ultiparseSymbolTable]: Global variable declaration of __U_MULTI_fjava_BubbleSort_alloca_true_valid_memsafety_true_termination_i____id_t in java_BubbleSort-alloca_true-valid-memsafety_true-termination.i [2018-04-05 15:50:58,156 INFO L230 ultiparseSymbolTable]: Global variable declaration of __U_MULTI_fjava_BubbleSort_alloca_true_valid_memsafety_true_termination_i__pthread_t in java_BubbleSort-alloca_true-valid-memsafety_true-termination.i [2018-04-05 15:50:58,156 INFO L230 ultiparseSymbolTable]: Global variable declaration of __U_MULTI_fjava_BubbleSort_alloca_true_valid_memsafety_true_termination_i____int64_t in java_BubbleSort-alloca_true-valid-memsafety_true-termination.i [2018-04-05 15:50:58,156 INFO L230 ultiparseSymbolTable]: Global variable declaration of __U_MULTI_fjava_BubbleSort_alloca_true_valid_memsafety_true_termination_i____syscall_ulong_t in java_BubbleSort-alloca_true-valid-memsafety_true-termination.i [2018-04-05 15:50:58,156 INFO L230 ultiparseSymbolTable]: Global variable declaration of __U_MULTI_fjava_BubbleSort_alloca_true_valid_memsafety_true_termination_i____uint64_t in java_BubbleSort-alloca_true-valid-memsafety_true-termination.i [2018-04-05 15:50:58,156 INFO L230 ultiparseSymbolTable]: Global variable declaration of __U_MULTI_fjava_BubbleSort_alloca_true_valid_memsafety_true_termination_i__u_int8_t in java_BubbleSort-alloca_true-valid-memsafety_true-termination.i [2018-04-05 15:50:58,157 INFO L230 ultiparseSymbolTable]: Global variable declaration of __U_MULTI_fjava_BubbleSort_alloca_true_valid_memsafety_true_termination_i____u_int in java_BubbleSort-alloca_true-valid-memsafety_true-termination.i [2018-04-05 15:50:58,157 INFO L230 ultiparseSymbolTable]: Global variable declaration of __U_MULTI_fjava_BubbleSort_alloca_true_valid_memsafety_true_termination_i____useconds_t in java_BubbleSort-alloca_true-valid-memsafety_true-termination.i [2018-04-05 15:50:58,160 INFO L230 ultiparseSymbolTable]: Global variable declaration of __U_MULTI_fjava_BubbleSort_alloca_true_valid_memsafety_true_termination_i__time_t in java_BubbleSort-alloca_true-valid-memsafety_true-termination.i [2018-04-05 15:50:58,160 INFO L230 ultiparseSymbolTable]: Global variable declaration of __U_MULTI_fjava_BubbleSort_alloca_true_valid_memsafety_true_termination_i__u_int32_t in java_BubbleSort-alloca_true-valid-memsafety_true-termination.i [2018-04-05 15:50:58,160 INFO L230 ultiparseSymbolTable]: Global variable declaration of __U_MULTI_fjava_BubbleSort_alloca_true_valid_memsafety_true_termination_i__pthread_barrierattr_t in java_BubbleSort-alloca_true-valid-memsafety_true-termination.i [2018-04-05 15:50:58,160 INFO L230 ultiparseSymbolTable]: Global variable declaration of __U_MULTI_fjava_BubbleSort_alloca_true_valid_memsafety_true_termination_i____fsblkcnt_t in java_BubbleSort-alloca_true-valid-memsafety_true-termination.i [2018-04-05 15:50:58,160 INFO L230 ultiparseSymbolTable]: Global variable declaration of __U_MULTI_fjava_BubbleSort_alloca_true_valid_memsafety_true_termination_i____sig_atomic_t in java_BubbleSort-alloca_true-valid-memsafety_true-termination.i [2018-04-05 15:50:58,160 INFO L230 ultiparseSymbolTable]: Global variable declaration of __U_MULTI_fjava_BubbleSort_alloca_true_valid_memsafety_true_termination_i__sigset_t in java_BubbleSort-alloca_true-valid-memsafety_true-termination.i [2018-04-05 15:50:58,161 INFO L230 ultiparseSymbolTable]: Global variable declaration of __U_MULTI_fjava_BubbleSort_alloca_true_valid_memsafety_true_termination_i____blkcnt_t in java_BubbleSort-alloca_true-valid-memsafety_true-termination.i [2018-04-05 15:50:58,161 INFO L230 ultiparseSymbolTable]: Global variable declaration of __U_MULTI_fjava_BubbleSort_alloca_true_valid_memsafety_true_termination_i____fsword_t in java_BubbleSort-alloca_true-valid-memsafety_true-termination.i [2018-04-05 15:50:58,161 INFO L230 ultiparseSymbolTable]: Global variable declaration of __U_MULTI_fjava_BubbleSort_alloca_true_valid_memsafety_true_termination_i__dev_t in java_BubbleSort-alloca_true-valid-memsafety_true-termination.i [2018-04-05 15:50:58,161 INFO L230 ultiparseSymbolTable]: Global variable declaration of __U_MULTI_fjava_BubbleSort_alloca_true_valid_memsafety_true_termination_i__ssize_t in java_BubbleSort-alloca_true-valid-memsafety_true-termination.i [2018-04-05 15:50:58,161 INFO L230 ultiparseSymbolTable]: Global variable declaration of __U_MULTI_fjava_BubbleSort_alloca_true_valid_memsafety_true_termination_i__id_t in java_BubbleSort-alloca_true-valid-memsafety_true-termination.i [2018-04-05 15:50:58,161 INFO L230 ultiparseSymbolTable]: Global variable declaration of __U_MULTI_fjava_BubbleSort_alloca_true_valid_memsafety_true_termination_i____mode_t in java_BubbleSort-alloca_true-valid-memsafety_true-termination.i [2018-04-05 15:50:58,161 INFO L230 ultiparseSymbolTable]: Global variable declaration of __U_MULTI_fjava_BubbleSort_alloca_true_valid_memsafety_true_termination_i__fsfilcnt_t in java_BubbleSort-alloca_true-valid-memsafety_true-termination.i [2018-04-05 15:50:58,161 INFO L230 ultiparseSymbolTable]: Global variable declaration of __U_MULTI_fjava_BubbleSort_alloca_true_valid_memsafety_true_termination_i__int8_t in java_BubbleSort-alloca_true-valid-memsafety_true-termination.i [2018-04-05 15:50:58,162 INFO L230 ultiparseSymbolTable]: Global variable declaration of __U_MULTI_fjava_BubbleSort_alloca_true_valid_memsafety_true_termination_i__ino_t in java_BubbleSort-alloca_true-valid-memsafety_true-termination.i [2018-04-05 15:50:58,162 INFO L230 ultiparseSymbolTable]: Global variable declaration of __U_MULTI_fjava_BubbleSort_alloca_true_valid_memsafety_true_termination_i__pid_t in java_BubbleSort-alloca_true-valid-memsafety_true-termination.i [2018-04-05 15:50:58,162 INFO L230 ultiparseSymbolTable]: Global variable declaration of __U_MULTI_fjava_BubbleSort_alloca_true_valid_memsafety_true_termination_i__size_t in java_BubbleSort-alloca_true-valid-memsafety_true-termination.i [2018-04-05 15:50:58,162 INFO L230 ultiparseSymbolTable]: Global variable declaration of __U_MULTI_fjava_BubbleSort_alloca_true_valid_memsafety_true_termination_i____intptr_t in java_BubbleSort-alloca_true-valid-memsafety_true-termination.i [2018-04-05 15:50:58,162 INFO L230 ultiparseSymbolTable]: Global variable declaration of __U_MULTI_fjava_BubbleSort_alloca_true_valid_memsafety_true_termination_i__ldiv_t in java_BubbleSort-alloca_true-valid-memsafety_true-termination.i [2018-04-05 15:50:58,162 INFO L230 ultiparseSymbolTable]: Global variable declaration of __U_MULTI_fjava_BubbleSort_alloca_true_valid_memsafety_true_termination_i____blkcnt64_t in java_BubbleSort-alloca_true-valid-memsafety_true-termination.i [2018-04-05 15:50:58,162 INFO L230 ultiparseSymbolTable]: Global variable declaration of __U_MULTI_fjava_BubbleSort_alloca_true_valid_memsafety_true_termination_i__off_t in java_BubbleSort-alloca_true-valid-memsafety_true-termination.i [2018-04-05 15:50:58,162 INFO L230 ultiparseSymbolTable]: Global variable declaration of __U_MULTI_fjava_BubbleSort_alloca_true_valid_memsafety_true_termination_i__pthread_mutex_t in java_BubbleSort-alloca_true-valid-memsafety_true-termination.i [2018-04-05 15:50:58,163 INFO L230 ultiparseSymbolTable]: Global variable declaration of __U_MULTI_fjava_BubbleSort_alloca_true_valid_memsafety_true_termination_i____fsfilcnt64_t in java_BubbleSort-alloca_true-valid-memsafety_true-termination.i [2018-04-05 15:50:58,163 INFO L230 ultiparseSymbolTable]: Global variable declaration of __U_MULTI_fjava_BubbleSort_alloca_true_valid_memsafety_true_termination_i____nlink_t in java_BubbleSort-alloca_true-valid-memsafety_true-termination.i [2018-04-05 15:50:58,163 INFO L230 ultiparseSymbolTable]: Global variable declaration of __U_MULTI_fjava_BubbleSort_alloca_true_valid_memsafety_true_termination_i__int32_t in java_BubbleSort-alloca_true-valid-memsafety_true-termination.i [2018-04-05 15:50:58,163 INFO L230 ultiparseSymbolTable]: Global variable declaration of __U_MULTI_fjava_BubbleSort_alloca_true_valid_memsafety_true_termination_i____u_short in java_BubbleSort-alloca_true-valid-memsafety_true-termination.i [2018-04-05 15:50:58,163 INFO L230 ultiparseSymbolTable]: Global variable declaration of __U_MULTI_fjava_BubbleSort_alloca_true_valid_memsafety_true_termination_i____ssize_t in java_BubbleSort-alloca_true-valid-memsafety_true-termination.i [2018-04-05 15:50:58,163 INFO L230 ultiparseSymbolTable]: Global variable declaration of __U_MULTI_fjava_BubbleSort_alloca_true_valid_memsafety_true_termination_i____socklen_t in java_BubbleSort-alloca_true-valid-memsafety_true-termination.i [2018-04-05 15:50:58,163 INFO L230 ultiparseSymbolTable]: Global variable declaration of __U_MULTI_fjava_BubbleSort_alloca_true_valid_memsafety_true_termination_i__key_t in java_BubbleSort-alloca_true-valid-memsafety_true-termination.i [2018-04-05 15:50:58,163 INFO L230 ultiparseSymbolTable]: Global variable declaration of __U_MULTI_fjava_BubbleSort_alloca_true_valid_memsafety_true_termination_i__timer_t in java_BubbleSort-alloca_true-valid-memsafety_true-termination.i [2018-04-05 15:50:58,164 INFO L230 ultiparseSymbolTable]: Global variable declaration of __U_MULTI_fjava_BubbleSort_alloca_true_valid_memsafety_true_termination_i__register_t in java_BubbleSort-alloca_true-valid-memsafety_true-termination.i [2018-04-05 15:50:58,174 INFO L230 ultiparseSymbolTable]: Global variable declaration of __U_MULTI_fjava_BubbleSort_alloca_true_valid_memsafety_true_termination_i____rlim_t in java_BubbleSort-alloca_true-valid-memsafety_true-termination.i [2018-04-05 15:50:58,174 INFO L230 ultiparseSymbolTable]: Global variable declaration of __U_MULTI_fjava_BubbleSort_alloca_true_valid_memsafety_true_termination_i__u_int in java_BubbleSort-alloca_true-valid-memsafety_true-termination.i [2018-04-05 15:50:58,174 INFO L230 ultiparseSymbolTable]: Global variable declaration of __U_MULTI_fjava_BubbleSort_alloca_true_valid_memsafety_true_termination_i____int8_t in java_BubbleSort-alloca_true-valid-memsafety_true-termination.i [2018-04-05 15:50:58,174 INFO L230 ultiparseSymbolTable]: Global variable declaration of __U_MULTI_fjava_BubbleSort_alloca_true_valid_memsafety_true_termination_i____int32_t in java_BubbleSort-alloca_true-valid-memsafety_true-termination.i [2018-04-05 15:50:58,174 INFO L230 ultiparseSymbolTable]: Global variable declaration of __U_MULTI_fjava_BubbleSort_alloca_true_valid_memsafety_true_termination_i____rlim64_t in java_BubbleSort-alloca_true-valid-memsafety_true-termination.i [2018-04-05 15:50:58,174 INFO L230 ultiparseSymbolTable]: Global variable declaration of __U_MULTI_fjava_BubbleSort_alloca_true_valid_memsafety_true_termination_i__fsblkcnt_t in java_BubbleSort-alloca_true-valid-memsafety_true-termination.i [2018-04-05 15:50:58,175 INFO L230 ultiparseSymbolTable]: Global variable declaration of __U_MULTI_fjava_BubbleSort_alloca_true_valid_memsafety_true_termination_i____time_t in java_BubbleSort-alloca_true-valid-memsafety_true-termination.i [2018-04-05 15:50:58,175 INFO L230 ultiparseSymbolTable]: Global variable declaration of __U_MULTI_fjava_BubbleSort_alloca_true_valid_memsafety_true_termination_i____timer_t in java_BubbleSort-alloca_true-valid-memsafety_true-termination.i [2018-04-05 15:50:58,175 INFO L230 ultiparseSymbolTable]: Global variable declaration of __U_MULTI_fjava_BubbleSort_alloca_true_valid_memsafety_true_termination_i__u_int64_t in java_BubbleSort-alloca_true-valid-memsafety_true-termination.i [2018-04-05 15:50:58,175 INFO L230 ultiparseSymbolTable]: Global variable declaration of __U_MULTI_fjava_BubbleSort_alloca_true_valid_memsafety_true_termination_i____suseconds_t in java_BubbleSort-alloca_true-valid-memsafety_true-termination.i [2018-04-05 15:50:58,175 INFO L230 ultiparseSymbolTable]: Global variable declaration of __U_MULTI_fjava_BubbleSort_alloca_true_valid_memsafety_true_termination_i____fsblkcnt64_t in java_BubbleSort-alloca_true-valid-memsafety_true-termination.i [2018-04-05 15:50:58,175 INFO L230 ultiparseSymbolTable]: Global variable declaration of __U_MULTI_fjava_BubbleSort_alloca_true_valid_memsafety_true_termination_i____fsfilcnt_t in java_BubbleSort-alloca_true-valid-memsafety_true-termination.i [2018-04-05 15:50:58,175 INFO L230 ultiparseSymbolTable]: Global variable declaration of __U_MULTI_fjava_BubbleSort_alloca_true_valid_memsafety_true_termination_i__pthread_mutexattr_t in java_BubbleSort-alloca_true-valid-memsafety_true-termination.i [2018-04-05 15:50:58,175 INFO L230 ultiparseSymbolTable]: Global variable declaration of __U_MULTI_fjava_BubbleSort_alloca_true_valid_memsafety_true_termination_i____qaddr_t in java_BubbleSort-alloca_true-valid-memsafety_true-termination.i [2018-04-05 15:50:58,175 INFO L230 ultiparseSymbolTable]: Global variable declaration of __U_MULTI_fjava_BubbleSort_alloca_true_valid_memsafety_true_termination_i__int16_t in java_BubbleSort-alloca_true-valid-memsafety_true-termination.i [2018-04-05 15:50:58,176 INFO L230 ultiparseSymbolTable]: Global variable declaration of __U_MULTI_fjava_BubbleSort_alloca_true_valid_memsafety_true_termination_i__blksize_t in java_BubbleSort-alloca_true-valid-memsafety_true-termination.i [2018-04-05 15:50:58,176 INFO L230 ultiparseSymbolTable]: Global variable declaration of __U_MULTI_fjava_BubbleSort_alloca_true_valid_memsafety_true_termination_i____u_char in java_BubbleSort-alloca_true-valid-memsafety_true-termination.i [2018-04-05 15:50:58,176 INFO L230 ultiparseSymbolTable]: Global variable declaration of __U_MULTI_fjava_BubbleSort_alloca_true_valid_memsafety_true_termination_i__wchar_t in java_BubbleSort-alloca_true-valid-memsafety_true-termination.i [2018-04-05 15:50:58,176 INFO L230 ultiparseSymbolTable]: Global variable declaration of __U_MULTI_fjava_BubbleSort_alloca_true_valid_memsafety_true_termination_i____blksize_t in java_BubbleSort-alloca_true-valid-memsafety_true-termination.i [2018-04-05 15:50:58,176 INFO L230 ultiparseSymbolTable]: Global variable declaration of __U_MULTI_fjava_BubbleSort_alloca_true_valid_memsafety_true_termination_i____caddr_t in java_BubbleSort-alloca_true-valid-memsafety_true-termination.i [2018-04-05 15:50:58,176 INFO L230 ultiparseSymbolTable]: Global variable declaration of __U_MULTI_fjava_BubbleSort_alloca_true_valid_memsafety_true_termination_i__fd_set in java_BubbleSort-alloca_true-valid-memsafety_true-termination.i [2018-04-05 15:50:58,176 INFO L230 ultiparseSymbolTable]: Global variable declaration of __U_MULTI_fjava_BubbleSort_alloca_true_valid_memsafety_true_termination_i____uint32_t in java_BubbleSort-alloca_true-valid-memsafety_true-termination.i [2018-04-05 15:50:58,176 INFO L230 ultiparseSymbolTable]: Global variable declaration of __U_MULTI_fjava_BubbleSort_alloca_true_valid_memsafety_true_termination_i__pthread_attr_t in java_BubbleSort-alloca_true-valid-memsafety_true-termination.i [2018-04-05 15:50:58,176 INFO L230 ultiparseSymbolTable]: Global variable declaration of __U_MULTI_fjava_BubbleSort_alloca_true_valid_memsafety_true_termination_i____clockid_t in java_BubbleSort-alloca_true-valid-memsafety_true-termination.i [2018-04-05 15:50:58,177 INFO L230 ultiparseSymbolTable]: Global variable declaration of __U_MULTI_fjava_BubbleSort_alloca_true_valid_memsafety_true_termination_i__lldiv_t in java_BubbleSort-alloca_true-valid-memsafety_true-termination.i [2018-04-05 15:50:58,179 INFO L230 ultiparseSymbolTable]: Global variable declaration of __U_MULTI_fjava_BubbleSort_alloca_true_valid_memsafety_true_termination_i____pthread_list_t in java_BubbleSort-alloca_true-valid-memsafety_true-termination.i [2018-04-05 15:50:58,179 INFO L230 ultiparseSymbolTable]: Global variable declaration of __U_MULTI_fjava_BubbleSort_alloca_true_valid_memsafety_true_termination_i____dev_t in java_BubbleSort-alloca_true-valid-memsafety_true-termination.i [2018-04-05 15:50:58,179 INFO L230 ultiparseSymbolTable]: Global variable declaration of __U_MULTI_fjava_BubbleSort_alloca_true_valid_memsafety_true_termination_i__uid_t in java_BubbleSort-alloca_true-valid-memsafety_true-termination.i [2018-04-05 15:50:58,180 INFO L230 ultiparseSymbolTable]: Global variable declaration of __U_MULTI_fjava_BubbleSort_alloca_true_valid_memsafety_true_termination_i__u_int16_t in java_BubbleSort-alloca_true-valid-memsafety_true-termination.i [2018-04-05 15:50:58,180 INFO L230 ultiparseSymbolTable]: Global variable declaration of __U_MULTI_fjava_BubbleSort_alloca_true_valid_memsafety_true_termination_i__blkcnt_t in java_BubbleSort-alloca_true-valid-memsafety_true-termination.i [2018-04-05 15:50:58,180 INFO L230 ultiparseSymbolTable]: Global variable declaration of __U_MULTI_fjava_BubbleSort_alloca_true_valid_memsafety_true_termination_i__ulong in java_BubbleSort-alloca_true-valid-memsafety_true-termination.i [2018-04-05 15:50:58,180 INFO L230 ultiparseSymbolTable]: Global variable declaration of __U_MULTI_fjava_BubbleSort_alloca_true_valid_memsafety_true_termination_i__mode_t in java_BubbleSort-alloca_true-valid-memsafety_true-termination.i [2018-04-05 15:50:58,180 INFO L230 ultiparseSymbolTable]: Global variable declaration of __U_MULTI_fjava_BubbleSort_alloca_true_valid_memsafety_true_termination_i__u_char in java_BubbleSort-alloca_true-valid-memsafety_true-termination.i [2018-04-05 15:50:58,180 INFO L230 ultiparseSymbolTable]: Global variable declaration of __U_MULTI_fjava_BubbleSort_alloca_true_valid_memsafety_true_termination_i__quad_t in java_BubbleSort-alloca_true-valid-memsafety_true-termination.i [2018-04-05 15:50:58,180 INFO L230 ultiparseSymbolTable]: Global variable declaration of __U_MULTI_fjava_BubbleSort_alloca_true_valid_memsafety_true_termination_i__pthread_spinlock_t in java_BubbleSort-alloca_true-valid-memsafety_true-termination.i [2018-04-05 15:50:58,180 INFO L230 ultiparseSymbolTable]: Global variable declaration of __U_MULTI_fjava_BubbleSort_alloca_true_valid_memsafety_true_termination_i__div_t in java_BubbleSort-alloca_true-valid-memsafety_true-termination.i [2018-04-05 15:50:58,181 INFO L230 ultiparseSymbolTable]: Global variable declaration of __U_MULTI_fjava_BubbleSort_alloca_true_valid_memsafety_true_termination_i____u_long in java_BubbleSort-alloca_true-valid-memsafety_true-termination.i [2018-04-05 15:50:58,181 INFO L230 ultiparseSymbolTable]: Global variable declaration of __U_MULTI_fjava_BubbleSort_alloca_true_valid_memsafety_true_termination_i__pthread_cond_t in java_BubbleSort-alloca_true-valid-memsafety_true-termination.i [2018-04-05 15:50:58,181 INFO L230 ultiparseSymbolTable]: Global variable declaration of __U_MULTI_fjava_BubbleSort_alloca_true_valid_memsafety_true_termination_i____int16_t in java_BubbleSort-alloca_true-valid-memsafety_true-termination.i [2018-04-05 15:50:58,181 INFO L230 ultiparseSymbolTable]: Global variable declaration of __U_MULTI_fjava_BubbleSort_alloca_true_valid_memsafety_true_termination_i__pthread_once_t in java_BubbleSort-alloca_true-valid-memsafety_true-termination.i [2018-04-05 15:50:58,181 INFO L230 ultiparseSymbolTable]: Global variable declaration of __U_MULTI_fjava_BubbleSort_alloca_true_valid_memsafety_true_termination_i__gid_t in java_BubbleSort-alloca_true-valid-memsafety_true-termination.i [2018-04-05 15:50:58,181 INFO L230 ultiparseSymbolTable]: Global variable declaration of __U_MULTI_fjava_BubbleSort_alloca_true_valid_memsafety_true_termination_i__u_short in java_BubbleSort-alloca_true-valid-memsafety_true-termination.i [2018-04-05 15:50:58,181 INFO L230 ultiparseSymbolTable]: Global variable declaration of __U_MULTI_fjava_BubbleSort_alloca_true_valid_memsafety_true_termination_i____sigset_t in java_BubbleSort-alloca_true-valid-memsafety_true-termination.i [2018-04-05 15:50:58,181 INFO L230 ultiparseSymbolTable]: Global variable declaration of __U_MULTI_fjava_BubbleSort_alloca_true_valid_memsafety_true_termination_i____ino_t in java_BubbleSort-alloca_true-valid-memsafety_true-termination.i [2018-04-05 15:50:58,181 INFO L230 ultiparseSymbolTable]: Global variable declaration of __U_MULTI_fjava_BubbleSort_alloca_true_valid_memsafety_true_termination_i__caddr_t in java_BubbleSort-alloca_true-valid-memsafety_true-termination.i [2018-04-05 15:50:58,275 INFO L330 CDTParser]: Deleted temporary CDT project at /storage/ultimate/releaseScripts/default/UAutomizer-linux/data/FLAGf3b4293e1 [2018-04-05 15:50:58,290 INFO L304 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2018-04-05 15:50:58,303 INFO L131 ToolchainWalker]: Walking toolchain with 4 elements. [2018-04-05 15:50:58,304 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2018-04-05 15:50:58,304 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2018-04-05 15:50:58,323 INFO L276 PluginConnector]: CACSL2BoogieTranslator initialized [2018-04-05 15:50:58,325 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 05.04 03:50:58" (1/1) ... [2018-04-05 15:50:58,332 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@10acd53a and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 05.04 03:50:58, skipping insertion in model container [2018-04-05 15:50:58,332 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 05.04 03:50:58" (1/1) ... [2018-04-05 15:50:58,363 INFO L167 Dispatcher]: Using SV-COMP mode [2018-04-05 15:50:58,460 INFO L167 Dispatcher]: Using SV-COMP mode [2018-04-05 15:50:58,869 INFO L175 PostProcessor]: Settings: Checked method=main [2018-04-05 15:50:59,028 INFO L175 PostProcessor]: Settings: Checked method=main [2018-04-05 15:50:59,042 INFO L100 SccComputation]: Graph consists of 0 InCaSumBalls and 112 non ball SCCs. Number of states in SCCs 112. [2018-04-05 15:50:59,142 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 05.04 03:50:59 WrapperNode [2018-04-05 15:50:59,143 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2018-04-05 15:50:59,143 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2018-04-05 15:50:59,144 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2018-04-05 15:50:59,144 INFO L276 PluginConnector]: Boogie Preprocessor initialized [2018-04-05 15:50:59,187 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 05.04 03:50:59" (1/1) ... [2018-04-05 15:50:59,187 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 05.04 03:50:59" (1/1) ... [2018-04-05 15:50:59,243 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 05.04 03:50:59" (1/1) ... [2018-04-05 15:50:59,243 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 05.04 03:50:59" (1/1) ... [2018-04-05 15:50:59,272 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 05.04 03:50:59" (1/1) ... [2018-04-05 15:50:59,298 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 05.04 03:50:59" (1/1) ... [2018-04-05 15:50:59,301 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 05.04 03:50:59" (1/1) ... [2018-04-05 15:50:59,323 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2018-04-05 15:50:59,324 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2018-04-05 15:50:59,328 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2018-04-05 15:50:59,328 INFO L276 PluginConnector]: RCFGBuilder initialized [2018-04-05 15:50:59,329 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 05.04 03:50:59" (1/1) ... No working directory specified, using /storage/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2018-04-05 15:50:59,687 INFO L136 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2018-04-05 15:50:59,692 INFO L136 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2018-04-05 15:50:59,692 INFO L136 BoogieDeclarations]: Found implementation of procedure __U_MULTI_fjava_BubbleSort_alloca_true_valid_memsafety_true_termination_i____bswap_32 [2018-04-05 15:50:59,692 INFO L136 BoogieDeclarations]: Found implementation of procedure __U_MULTI_fjava_BubbleSort_alloca_true_valid_memsafety_true_termination_i____bswap_64 [2018-04-05 15:50:59,692 INFO L136 BoogieDeclarations]: Found implementation of procedure __U_MULTI_fjava_BubbleSort_alloca_true_valid_memsafety_true_termination_i__sort [2018-04-05 15:50:59,692 INFO L136 BoogieDeclarations]: Found implementation of procedure main [2018-04-05 15:50:59,693 INFO L128 BoogieDeclarations]: Found specification of procedure __U_MULTI_fjava_BubbleSort_alloca_true_valid_memsafety_true_termination_i____bswap_32 [2018-04-05 15:50:59,693 INFO L128 BoogieDeclarations]: Found specification of procedure __U_MULTI_fjava_BubbleSort_alloca_true_valid_memsafety_true_termination_i____bswap_64 [2018-04-05 15:50:59,693 INFO L128 BoogieDeclarations]: Found specification of procedure __ctype_get_mb_cur_max [2018-04-05 15:50:59,693 INFO L128 BoogieDeclarations]: Found specification of procedure atof [2018-04-05 15:50:59,693 INFO L128 BoogieDeclarations]: Found specification of procedure atoi [2018-04-05 15:50:59,693 INFO L128 BoogieDeclarations]: Found specification of procedure atol [2018-04-05 15:50:59,694 INFO L128 BoogieDeclarations]: Found specification of procedure atoll [2018-04-05 15:50:59,694 INFO L128 BoogieDeclarations]: Found specification of procedure strtod [2018-04-05 15:50:59,694 INFO L128 BoogieDeclarations]: Found specification of procedure strtof [2018-04-05 15:50:59,694 INFO L128 BoogieDeclarations]: Found specification of procedure strtold [2018-04-05 15:50:59,694 INFO L128 BoogieDeclarations]: Found specification of procedure strtol [2018-04-05 15:50:59,694 INFO L128 BoogieDeclarations]: Found specification of procedure strtoul [2018-04-05 15:50:59,695 INFO L128 BoogieDeclarations]: Found specification of procedure strtoq [2018-04-05 15:50:59,695 INFO L128 BoogieDeclarations]: Found specification of procedure strtouq [2018-04-05 15:50:59,695 INFO L128 BoogieDeclarations]: Found specification of procedure strtoll [2018-04-05 15:50:59,695 INFO L128 BoogieDeclarations]: Found specification of procedure strtoull [2018-04-05 15:50:59,695 INFO L128 BoogieDeclarations]: Found specification of procedure l64a [2018-04-05 15:50:59,695 INFO L128 BoogieDeclarations]: Found specification of procedure a64l [2018-04-05 15:50:59,696 INFO L128 BoogieDeclarations]: Found specification of procedure select [2018-04-05 15:50:59,705 INFO L128 BoogieDeclarations]: Found specification of procedure pselect [2018-04-05 15:50:59,705 INFO L128 BoogieDeclarations]: Found specification of procedure gnu_dev_major [2018-04-05 15:50:59,705 INFO L128 BoogieDeclarations]: Found specification of procedure gnu_dev_minor [2018-04-05 15:50:59,705 INFO L128 BoogieDeclarations]: Found specification of procedure gnu_dev_makedev [2018-04-05 15:50:59,706 INFO L128 BoogieDeclarations]: Found specification of procedure random [2018-04-05 15:50:59,706 INFO L128 BoogieDeclarations]: Found specification of procedure srandom [2018-04-05 15:50:59,706 INFO L128 BoogieDeclarations]: Found specification of procedure initstate [2018-04-05 15:50:59,706 INFO L128 BoogieDeclarations]: Found specification of procedure setstate [2018-04-05 15:50:59,706 INFO L128 BoogieDeclarations]: Found specification of procedure random_r [2018-04-05 15:50:59,706 INFO L128 BoogieDeclarations]: Found specification of procedure srandom_r [2018-04-05 15:50:59,706 INFO L128 BoogieDeclarations]: Found specification of procedure initstate_r [2018-04-05 15:50:59,707 INFO L128 BoogieDeclarations]: Found specification of procedure setstate_r [2018-04-05 15:50:59,707 INFO L128 BoogieDeclarations]: Found specification of procedure rand [2018-04-05 15:50:59,707 INFO L128 BoogieDeclarations]: Found specification of procedure srand [2018-04-05 15:50:59,707 INFO L128 BoogieDeclarations]: Found specification of procedure rand_r [2018-04-05 15:50:59,707 INFO L128 BoogieDeclarations]: Found specification of procedure drand48 [2018-04-05 15:50:59,707 INFO L128 BoogieDeclarations]: Found specification of procedure erand48 [2018-04-05 15:50:59,707 INFO L128 BoogieDeclarations]: Found specification of procedure lrand48 [2018-04-05 15:50:59,707 INFO L128 BoogieDeclarations]: Found specification of procedure nrand48 [2018-04-05 15:50:59,708 INFO L128 BoogieDeclarations]: Found specification of procedure mrand48 [2018-04-05 15:50:59,708 INFO L128 BoogieDeclarations]: Found specification of procedure jrand48 [2018-04-05 15:50:59,711 INFO L128 BoogieDeclarations]: Found specification of procedure srand48 [2018-04-05 15:50:59,711 INFO L128 BoogieDeclarations]: Found specification of procedure seed48 [2018-04-05 15:50:59,711 INFO L128 BoogieDeclarations]: Found specification of procedure lcong48 [2018-04-05 15:50:59,711 INFO L128 BoogieDeclarations]: Found specification of procedure drand48_r [2018-04-05 15:50:59,711 INFO L128 BoogieDeclarations]: Found specification of procedure erand48_r [2018-04-05 15:50:59,711 INFO L128 BoogieDeclarations]: Found specification of procedure lrand48_r [2018-04-05 15:50:59,712 INFO L128 BoogieDeclarations]: Found specification of procedure nrand48_r [2018-04-05 15:50:59,712 INFO L128 BoogieDeclarations]: Found specification of procedure mrand48_r [2018-04-05 15:50:59,712 INFO L128 BoogieDeclarations]: Found specification of procedure jrand48_r [2018-04-05 15:50:59,712 INFO L128 BoogieDeclarations]: Found specification of procedure srand48_r [2018-04-05 15:50:59,712 INFO L128 BoogieDeclarations]: Found specification of procedure seed48_r [2018-04-05 15:50:59,712 INFO L128 BoogieDeclarations]: Found specification of procedure lcong48_r [2018-04-05 15:50:59,712 INFO L128 BoogieDeclarations]: Found specification of procedure malloc [2018-04-05 15:50:59,712 INFO L128 BoogieDeclarations]: Found specification of procedure calloc [2018-04-05 15:50:59,713 INFO L128 BoogieDeclarations]: Found specification of procedure realloc [2018-04-05 15:50:59,713 INFO L128 BoogieDeclarations]: Found specification of procedure free [2018-04-05 15:50:59,713 INFO L128 BoogieDeclarations]: Found specification of procedure cfree [2018-04-05 15:50:59,713 INFO L128 BoogieDeclarations]: Found specification of procedure alloca [2018-04-05 15:50:59,713 INFO L128 BoogieDeclarations]: Found specification of procedure valloc [2018-04-05 15:50:59,713 INFO L128 BoogieDeclarations]: Found specification of procedure posix_memalign [2018-04-05 15:50:59,713 INFO L128 BoogieDeclarations]: Found specification of procedure abort [2018-04-05 15:50:59,713 INFO L128 BoogieDeclarations]: Found specification of procedure atexit [2018-04-05 15:50:59,714 INFO L128 BoogieDeclarations]: Found specification of procedure on_exit [2018-04-05 15:50:59,718 INFO L128 BoogieDeclarations]: Found specification of procedure exit [2018-04-05 15:50:59,718 INFO L128 BoogieDeclarations]: Found specification of procedure _Exit [2018-04-05 15:50:59,718 INFO L128 BoogieDeclarations]: Found specification of procedure getenv [2018-04-05 15:50:59,718 INFO L128 BoogieDeclarations]: Found specification of procedure putenv [2018-04-05 15:50:59,718 INFO L128 BoogieDeclarations]: Found specification of procedure setenv [2018-04-05 15:50:59,719 INFO L128 BoogieDeclarations]: Found specification of procedure unsetenv [2018-04-05 15:50:59,719 INFO L128 BoogieDeclarations]: Found specification of procedure clearenv [2018-04-05 15:50:59,719 INFO L128 BoogieDeclarations]: Found specification of procedure mktemp [2018-04-05 15:50:59,719 INFO L128 BoogieDeclarations]: Found specification of procedure mkstemp [2018-04-05 15:50:59,719 INFO L128 BoogieDeclarations]: Found specification of procedure mkstemps [2018-04-05 15:50:59,719 INFO L128 BoogieDeclarations]: Found specification of procedure mkdtemp [2018-04-05 15:50:59,719 INFO L128 BoogieDeclarations]: Found specification of procedure system [2018-04-05 15:50:59,720 INFO L128 BoogieDeclarations]: Found specification of procedure realpath [2018-04-05 15:50:59,720 INFO L128 BoogieDeclarations]: Found specification of procedure bsearch [2018-04-05 15:50:59,720 INFO L128 BoogieDeclarations]: Found specification of procedure qsort [2018-04-05 15:50:59,720 INFO L128 BoogieDeclarations]: Found specification of procedure abs [2018-04-05 15:50:59,720 INFO L128 BoogieDeclarations]: Found specification of procedure labs [2018-04-05 15:50:59,720 INFO L128 BoogieDeclarations]: Found specification of procedure llabs [2018-04-05 15:50:59,720 INFO L128 BoogieDeclarations]: Found specification of procedure div [2018-04-05 15:50:59,720 INFO L128 BoogieDeclarations]: Found specification of procedure ldiv [2018-04-05 15:50:59,721 INFO L128 BoogieDeclarations]: Found specification of procedure lldiv [2018-04-05 15:50:59,721 INFO L128 BoogieDeclarations]: Found specification of procedure ecvt [2018-04-05 15:50:59,721 INFO L128 BoogieDeclarations]: Found specification of procedure fcvt [2018-04-05 15:50:59,721 INFO L128 BoogieDeclarations]: Found specification of procedure gcvt [2018-04-05 15:50:59,721 INFO L128 BoogieDeclarations]: Found specification of procedure qecvt [2018-04-05 15:50:59,721 INFO L128 BoogieDeclarations]: Found specification of procedure qfcvt [2018-04-05 15:50:59,721 INFO L128 BoogieDeclarations]: Found specification of procedure qgcvt [2018-04-05 15:50:59,721 INFO L128 BoogieDeclarations]: Found specification of procedure ecvt_r [2018-04-05 15:50:59,722 INFO L128 BoogieDeclarations]: Found specification of procedure fcvt_r [2018-04-05 15:50:59,722 INFO L128 BoogieDeclarations]: Found specification of procedure qecvt_r [2018-04-05 15:50:59,722 INFO L128 BoogieDeclarations]: Found specification of procedure qfcvt_r [2018-04-05 15:50:59,722 INFO L128 BoogieDeclarations]: Found specification of procedure mblen [2018-04-05 15:50:59,722 INFO L128 BoogieDeclarations]: Found specification of procedure mbtowc [2018-04-05 15:50:59,722 INFO L128 BoogieDeclarations]: Found specification of procedure wctomb [2018-04-05 15:50:59,722 INFO L128 BoogieDeclarations]: Found specification of procedure mbstowcs [2018-04-05 15:50:59,722 INFO L128 BoogieDeclarations]: Found specification of procedure wcstombs [2018-04-05 15:50:59,723 INFO L128 BoogieDeclarations]: Found specification of procedure rpmatch [2018-04-05 15:50:59,723 INFO L128 BoogieDeclarations]: Found specification of procedure getsubopt [2018-04-05 15:50:59,723 INFO L128 BoogieDeclarations]: Found specification of procedure getloadavg [2018-04-05 15:50:59,723 INFO L128 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_int [2018-04-05 15:50:59,723 INFO L128 BoogieDeclarations]: Found specification of procedure __U_MULTI_fjava_BubbleSort_alloca_true_valid_memsafety_true_termination_i__sort [2018-04-05 15:50:59,723 INFO L128 BoogieDeclarations]: Found specification of procedure read~int [2018-04-05 15:50:59,723 INFO L128 BoogieDeclarations]: Found specification of procedure write~int [2018-04-05 15:50:59,723 INFO L128 BoogieDeclarations]: Found specification of procedure main [2018-04-05 15:50:59,724 INFO L128 BoogieDeclarations]: Found specification of procedure #Ultimate.alloc [2018-04-05 15:50:59,724 INFO L128 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2018-04-05 15:50:59,724 INFO L128 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2018-04-05 15:50:59,724 INFO L128 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2018-04-05 15:50:59,724 INFO L128 BoogieDeclarations]: Found specification of procedure write~unchecked~int [2018-04-05 15:51:00,719 INFO L259 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2018-04-05 15:51:00,719 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 05.04 03:51:00 BoogieIcfgContainer [2018-04-05 15:51:00,719 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2018-04-05 15:51:00,721 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2018-04-05 15:51:00,721 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2018-04-05 15:51:00,724 INFO L276 PluginConnector]: TraceAbstraction initialized [2018-04-05 15:51:00,725 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 05.04 03:50:58" (1/3) ... [2018-04-05 15:51:00,725 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@34f3853 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 05.04 03:51:00, skipping insertion in model container [2018-04-05 15:51:00,725 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 05.04 03:50:59" (2/3) ... [2018-04-05 15:51:00,726 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@34f3853 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 05.04 03:51:00, skipping insertion in model container [2018-04-05 15:51:00,726 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 05.04 03:51:00" (3/3) ... [2018-04-05 15:51:00,728 INFO L107 eAbstractionObserver]: Analyzing ICFG java_BubbleSort-alloca_true-valid-memsafety_true-termination.i [2018-04-05 15:51:00,740 INFO L131 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2018-04-05 15:51:00,760 INFO L143 ceAbstractionStarter]: Appying trace abstraction to program that has 13 error locations. [2018-04-05 15:51:00,850 INFO L128 ementStrategyFactory]: Using default assertion order modulation [2018-04-05 15:51:00,851 INFO L369 AbstractCegarLoop]: Interprodecural is true [2018-04-05 15:51:00,851 INFO L370 AbstractCegarLoop]: Hoare is true [2018-04-05 15:51:00,851 INFO L371 AbstractCegarLoop]: Compute interpolants for FPandBP [2018-04-05 15:51:00,851 INFO L372 AbstractCegarLoop]: Backedges is TWOTRACK [2018-04-05 15:51:00,851 INFO L373 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2018-04-05 15:51:00,852 INFO L374 AbstractCegarLoop]: Difference is false [2018-04-05 15:51:00,852 INFO L375 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2018-04-05 15:51:00,852 INFO L380 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2018-04-05 15:51:00,853 INFO L87 2NestedWordAutomaton]: Mode: main mode - execution starts in main procedure [2018-04-05 15:51:00,883 INFO L276 IsEmpty]: Start isEmpty. Operand 66 states. [2018-04-05 15:51:00,902 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 25 [2018-04-05 15:51:00,903 INFO L347 BasicCegarLoop]: Found error trace [2018-04-05 15:51:00,904 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] [2018-04-05 15:51:00,904 INFO L408 AbstractCegarLoop]: === Iteration 1 === [mainErr0EnsuresViolationMEMORY_LEAK, __U_MULTI_fjava_BubbleSort_alloca_true_valid_memsafety_true_termination_i__sortErr3RequiresViolation, __U_MULTI_fjava_BubbleSort_alloca_true_valid_memsafety_true_termination_i__sortErr11RequiresViolation, __U_MULTI_fjava_BubbleSort_alloca_true_valid_memsafety_true_termination_i__sortErr5RequiresViolation, __U_MULTI_fjava_BubbleSort_alloca_true_valid_memsafety_true_termination_i__sortErr0RequiresViolation, __U_MULTI_fjava_BubbleSort_alloca_true_valid_memsafety_true_termination_i__sortErr1RequiresViolation, __U_MULTI_fjava_BubbleSort_alloca_true_valid_memsafety_true_termination_i__sortErr6RequiresViolation, __U_MULTI_fjava_BubbleSort_alloca_true_valid_memsafety_true_termination_i__sortErr7RequiresViolation, __U_MULTI_fjava_BubbleSort_alloca_true_valid_memsafety_true_termination_i__sortErr10RequiresViolation, __U_MULTI_fjava_BubbleSort_alloca_true_valid_memsafety_true_termination_i__sortErr4RequiresViolation, __U_MULTI_fjava_BubbleSort_alloca_true_valid_memsafety_true_termination_i__sortErr2RequiresViolation, __U_MULTI_fjava_BubbleSort_alloca_true_valid_memsafety_true_termination_i__sortErr8RequiresViolation, __U_MULTI_fjava_BubbleSort_alloca_true_valid_memsafety_true_termination_i__sortErr9RequiresViolation]=== [2018-04-05 15:51:00,912 INFO L82 PathProgramCache]: Analyzing trace with hash 820814923, now seen corresponding path program 1 times No working directory specified, using /storage/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 2 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 2 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2018-04-05 15:51:00,944 INFO L68 tionRefinementEngine]: Using refinement strategy FixedRefinementStrategy [2018-04-05 15:51:01,080 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-04-05 15:51:01,109 INFO L270 TraceCheckSpWp]: Computing forward predicates... [2018-04-05 15:51:01,205 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 6 treesize of output 5 [2018-04-05 15:51:01,209 INFO L267 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2018-04-05 15:51:01,221 INFO L267 ElimStorePlain]: Start of recursive call 1: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-04-05 15:51:01,221 INFO L202 ElimStorePlain]: Needed 2 recursive calls to eliminate 1 variables, input treesize:6, output treesize:5 [2018-04-05 15:51:01,389 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-04-05 15:51:01,389 INFO L314 TraceCheckSpWp]: Computing backward predicates... [2018-04-05 15:51:01,456 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-04-05 15:51:01,584 INFO L320 seRefinementStrategy]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2018-04-05 15:51:01,584 INFO L335 seRefinementStrategy]: Number of different interpolants: perfect sequences [5, 5] imperfect sequences [] total 5 [2018-04-05 15:51:01,602 INFO L442 AbstractCegarLoop]: Interpolant automaton has 6 states [2018-04-05 15:51:01,652 INFO L132 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2018-04-05 15:51:01,653 INFO L133 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2018-04-05 15:51:01,656 INFO L87 Difference]: Start difference. First operand 66 states. Second operand 6 states. [2018-04-05 15:51:02,244 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-04-05 15:51:02,244 INFO L93 Difference]: Finished difference Result 107 states and 122 transitions. [2018-04-05 15:51:02,246 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2018-04-05 15:51:02,248 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 24 [2018-04-05 15:51:02,249 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-04-05 15:51:02,283 INFO L225 Difference]: With dead ends: 107 [2018-04-05 15:51:02,285 INFO L226 Difference]: Without dead ends: 57 [2018-04-05 15:51:02,291 INFO L567 BasicCegarLoop]: 0 DeclaredPredicates, 49 GetRequests, 43 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=17, Invalid=39, Unknown=0, NotChecked=0, Total=56 [2018-04-05 15:51:02,335 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 57 states. [2018-04-05 15:51:02,369 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 57 to 57. [2018-04-05 15:51:02,372 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 57 states. [2018-04-05 15:51:02,376 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 57 states to 57 states and 60 transitions. [2018-04-05 15:51:02,378 INFO L78 Accepts]: Start accepts. Automaton has 57 states and 60 transitions. Word has length 24 [2018-04-05 15:51:02,379 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-04-05 15:51:02,379 INFO L459 AbstractCegarLoop]: Abstraction has 57 states and 60 transitions. [2018-04-05 15:51:02,379 INFO L460 AbstractCegarLoop]: Interpolant automaton has 6 states. [2018-04-05 15:51:02,379 INFO L276 IsEmpty]: Start isEmpty. Operand 57 states and 60 transitions. [2018-04-05 15:51:02,382 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 25 [2018-04-05 15:51:02,382 INFO L347 BasicCegarLoop]: Found error trace [2018-04-05 15:51:02,382 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] [2018-04-05 15:51:02,382 INFO L408 AbstractCegarLoop]: === Iteration 2 === [mainErr0EnsuresViolationMEMORY_LEAK, __U_MULTI_fjava_BubbleSort_alloca_true_valid_memsafety_true_termination_i__sortErr3RequiresViolation, __U_MULTI_fjava_BubbleSort_alloca_true_valid_memsafety_true_termination_i__sortErr11RequiresViolation, __U_MULTI_fjava_BubbleSort_alloca_true_valid_memsafety_true_termination_i__sortErr5RequiresViolation, __U_MULTI_fjava_BubbleSort_alloca_true_valid_memsafety_true_termination_i__sortErr0RequiresViolation, __U_MULTI_fjava_BubbleSort_alloca_true_valid_memsafety_true_termination_i__sortErr1RequiresViolation, __U_MULTI_fjava_BubbleSort_alloca_true_valid_memsafety_true_termination_i__sortErr6RequiresViolation, __U_MULTI_fjava_BubbleSort_alloca_true_valid_memsafety_true_termination_i__sortErr7RequiresViolation, __U_MULTI_fjava_BubbleSort_alloca_true_valid_memsafety_true_termination_i__sortErr10RequiresViolation, __U_MULTI_fjava_BubbleSort_alloca_true_valid_memsafety_true_termination_i__sortErr4RequiresViolation, __U_MULTI_fjava_BubbleSort_alloca_true_valid_memsafety_true_termination_i__sortErr2RequiresViolation, __U_MULTI_fjava_BubbleSort_alloca_true_valid_memsafety_true_termination_i__sortErr8RequiresViolation, __U_MULTI_fjava_BubbleSort_alloca_true_valid_memsafety_true_termination_i__sortErr9RequiresViolation]=== [2018-04-05 15:51:02,383 INFO L82 PathProgramCache]: Analyzing trace with hash 820814924, now seen corresponding path program 1 times No working directory specified, using /storage/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 3 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 3 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2018-04-05 15:51:02,410 INFO L68 tionRefinementEngine]: Using refinement strategy FixedRefinementStrategy [2018-04-05 15:51:02,468 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-04-05 15:51:02,474 INFO L270 TraceCheckSpWp]: Computing forward predicates... [2018-04-05 15:51:02,513 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 8 treesize of output 7 [2018-04-05 15:51:02,513 INFO L267 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2018-04-05 15:51:02,547 INFO L267 ElimStorePlain]: Start of recursive call 1: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-04-05 15:51:02,548 INFO L202 ElimStorePlain]: Needed 2 recursive calls to eliminate 1 variables, input treesize:12, output treesize:11 [2018-04-05 15:51:03,469 WARN L148 SmtUtils]: Spent 206ms on a formula simplification that was a NOOP. DAG size: 17 [2018-04-05 15:51:03,515 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-04-05 15:51:03,515 INFO L314 TraceCheckSpWp]: Computing backward predicates... [2018-04-05 15:51:04,354 WARN L148 SmtUtils]: Spent 106ms on a formula simplification that was a NOOP. DAG size: 14 [2018-04-05 15:51:04,650 WARN L148 SmtUtils]: Spent 191ms on a formula simplification that was a NOOP. DAG size: 14 [2018-04-05 15:51:04,902 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-04-05 15:51:04,953 INFO L320 seRefinementStrategy]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2018-04-05 15:51:04,953 INFO L335 seRefinementStrategy]: Number of different interpolants: perfect sequences [9, 9] imperfect sequences [] total 17 [2018-04-05 15:51:04,955 INFO L442 AbstractCegarLoop]: Interpolant automaton has 18 states [2018-04-05 15:51:04,956 INFO L132 InterpolantAutomaton]: Constructing interpolant automaton starting with 18 interpolants. [2018-04-05 15:51:04,956 INFO L133 InterpolantAutomaton]: CoverageRelationStatistics Valid=54, Invalid=252, Unknown=0, NotChecked=0, Total=306 [2018-04-05 15:51:04,956 INFO L87 Difference]: Start difference. First operand 57 states and 60 transitions. Second operand 18 states. [2018-04-05 15:51:05,215 WARN L148 SmtUtils]: Spent 121ms on a formula simplification that was a NOOP. DAG size: 23 [2018-04-05 15:51:05,913 WARN L148 SmtUtils]: Spent 285ms on a formula simplification that was a NOOP. DAG size: 16 [2018-04-05 15:51:07,507 WARN L148 SmtUtils]: Spent 104ms on a formula simplification that was a NOOP. DAG size: 39 [2018-04-05 15:51:07,840 WARN L148 SmtUtils]: Spent 187ms on a formula simplification that was a NOOP. DAG size: 30 [2018-04-05 15:51:08,147 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-04-05 15:51:08,147 INFO L93 Difference]: Finished difference Result 138 states and 159 transitions. [2018-04-05 15:51:08,151 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 16 states. [2018-04-05 15:51:08,151 INFO L78 Accepts]: Start accepts. Automaton has 18 states. Word has length 24 [2018-04-05 15:51:08,151 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-04-05 15:51:08,161 INFO L225 Difference]: With dead ends: 138 [2018-04-05 15:51:08,161 INFO L226 Difference]: Without dead ends: 132 [2018-04-05 15:51:08,163 INFO L567 BasicCegarLoop]: 0 DeclaredPredicates, 58 GetRequests, 31 SyntacticMatches, 0 SemanticMatches, 27 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 86 ImplicationChecksByTransitivity, 4.1s TimeCoverageRelationStatistics Valid=194, Invalid=618, Unknown=0, NotChecked=0, Total=812 [2018-04-05 15:51:08,163 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 132 states. [2018-04-05 15:51:08,187 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 132 to 69. [2018-04-05 15:51:08,189 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 69 states. [2018-04-05 15:51:08,191 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 69 states to 69 states and 74 transitions. [2018-04-05 15:51:08,191 INFO L78 Accepts]: Start accepts. Automaton has 69 states and 74 transitions. Word has length 24 [2018-04-05 15:51:08,192 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-04-05 15:51:08,200 INFO L459 AbstractCegarLoop]: Abstraction has 69 states and 74 transitions. [2018-04-05 15:51:08,200 INFO L460 AbstractCegarLoop]: Interpolant automaton has 18 states. [2018-04-05 15:51:08,200 INFO L276 IsEmpty]: Start isEmpty. Operand 69 states and 74 transitions. [2018-04-05 15:51:08,201 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 27 [2018-04-05 15:51:08,201 INFO L347 BasicCegarLoop]: Found error trace [2018-04-05 15:51:08,202 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] [2018-04-05 15:51:08,202 INFO L408 AbstractCegarLoop]: === Iteration 3 === [mainErr0EnsuresViolationMEMORY_LEAK, __U_MULTI_fjava_BubbleSort_alloca_true_valid_memsafety_true_termination_i__sortErr3RequiresViolation, __U_MULTI_fjava_BubbleSort_alloca_true_valid_memsafety_true_termination_i__sortErr11RequiresViolation, __U_MULTI_fjava_BubbleSort_alloca_true_valid_memsafety_true_termination_i__sortErr5RequiresViolation, __U_MULTI_fjava_BubbleSort_alloca_true_valid_memsafety_true_termination_i__sortErr0RequiresViolation, __U_MULTI_fjava_BubbleSort_alloca_true_valid_memsafety_true_termination_i__sortErr1RequiresViolation, __U_MULTI_fjava_BubbleSort_alloca_true_valid_memsafety_true_termination_i__sortErr6RequiresViolation, __U_MULTI_fjava_BubbleSort_alloca_true_valid_memsafety_true_termination_i__sortErr7RequiresViolation, __U_MULTI_fjava_BubbleSort_alloca_true_valid_memsafety_true_termination_i__sortErr10RequiresViolation, __U_MULTI_fjava_BubbleSort_alloca_true_valid_memsafety_true_termination_i__sortErr4RequiresViolation, __U_MULTI_fjava_BubbleSort_alloca_true_valid_memsafety_true_termination_i__sortErr2RequiresViolation, __U_MULTI_fjava_BubbleSort_alloca_true_valid_memsafety_true_termination_i__sortErr8RequiresViolation, __U_MULTI_fjava_BubbleSort_alloca_true_valid_memsafety_true_termination_i__sortErr9RequiresViolation]=== [2018-04-05 15:51:08,202 INFO L82 PathProgramCache]: Analyzing trace with hash -1675800913, now seen corresponding path program 1 times No working directory specified, using /storage/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 4 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 4 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2018-04-05 15:51:08,228 INFO L68 tionRefinementEngine]: Using refinement strategy FixedRefinementStrategy [2018-04-05 15:51:08,266 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-04-05 15:51:08,272 INFO L270 TraceCheckSpWp]: Computing forward predicates... [2018-04-05 15:51:08,379 INFO L700 Elim1Store]: detected not equals via solver [2018-04-05 15:51:08,380 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 12 treesize of output 5 [2018-04-05 15:51:08,381 INFO L267 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2018-04-05 15:51:08,389 INFO L267 ElimStorePlain]: Start of recursive call 1: 1 dim-0 vars, 1 dim-1 vars, End of recursive call: 1 dim-0 vars, and 1 xjuncts. [2018-04-05 15:51:08,389 INFO L202 ElimStorePlain]: Needed 2 recursive calls to eliminate 2 variables, input treesize:12, output treesize:5 [2018-04-05 15:51:08,475 WARN L1033 $PredicateComparison]: unable to prove that (exists ((|main_#t~malloc9.base| Int)) (and (= (store |c_old(#valid)| |main_#t~malloc9.base| 0) |c_#valid|) (= 0 (select |c_old(#valid)| |main_#t~malloc9.base|)))) is different from true [2018-04-05 15:51:08,541 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-04-05 15:51:08,548 INFO L314 TraceCheckSpWp]: Computing backward predicates... [2018-04-05 15:51:08,643 WARN L1011 $PredicateComparison]: unable to prove that (forall ((|v_main_#t~malloc9.base_8| Int)) (or (= |c_old(#valid)| (store |c_#valid| |v_main_#t~malloc9.base_8| 0)) (not (= (select |c_#valid| |v_main_#t~malloc9.base_8|) 0)))) is different from false [2018-04-05 15:51:08,676 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-04-05 15:51:08,726 INFO L320 seRefinementStrategy]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2018-04-05 15:51:08,727 INFO L335 seRefinementStrategy]: Number of different interpolants: perfect sequences [5, 4] imperfect sequences [] total 7 [2018-04-05 15:51:08,727 INFO L442 AbstractCegarLoop]: Interpolant automaton has 8 states [2018-04-05 15:51:08,727 INFO L132 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2018-04-05 15:51:08,728 INFO L133 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=21, Unknown=2, NotChecked=18, Total=56 [2018-04-05 15:51:08,728 INFO L87 Difference]: Start difference. First operand 69 states and 74 transitions. Second operand 8 states. [2018-04-05 15:51:08,894 WARN L1011 $PredicateComparison]: unable to prove that (and (= |c_#valid| |c_old(#valid)|) (forall ((|v_main_#t~malloc9.base_8| Int)) (or (= |c_old(#valid)| (store |c_#valid| |v_main_#t~malloc9.base_8| 0)) (not (= (select |c_#valid| |v_main_#t~malloc9.base_8|) 0))))) is different from false [2018-04-05 15:51:09,583 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-04-05 15:51:09,583 INFO L93 Difference]: Finished difference Result 77 states and 82 transitions. [2018-04-05 15:51:09,584 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2018-04-05 15:51:09,584 INFO L78 Accepts]: Start accepts. Automaton has 8 states. Word has length 26 [2018-04-05 15:51:09,585 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-04-05 15:51:09,587 INFO L225 Difference]: With dead ends: 77 [2018-04-05 15:51:09,587 INFO L226 Difference]: Without dead ends: 72 [2018-04-05 15:51:09,588 INFO L567 BasicCegarLoop]: 0 DeclaredPredicates, 56 GetRequests, 45 SyntacticMatches, 1 SemanticMatches, 10 ConstructedPredicates, 3 IntricatePredicates, 0 DeprecatedPredicates, 5 ImplicationChecksByTransitivity, 0.4s TimeCoverageRelationStatistics Valid=29, Invalid=52, Unknown=3, NotChecked=48, Total=132 [2018-04-05 15:51:09,592 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 72 states. [2018-04-05 15:51:09,652 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 72 to 72. [2018-04-05 15:51:09,652 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 72 states. [2018-04-05 15:51:09,654 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 72 states to 72 states and 77 transitions. [2018-04-05 15:51:09,654 INFO L78 Accepts]: Start accepts. Automaton has 72 states and 77 transitions. Word has length 26 [2018-04-05 15:51:09,665 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-04-05 15:51:09,665 INFO L459 AbstractCegarLoop]: Abstraction has 72 states and 77 transitions. [2018-04-05 15:51:09,665 INFO L460 AbstractCegarLoop]: Interpolant automaton has 8 states. [2018-04-05 15:51:09,666 INFO L276 IsEmpty]: Start isEmpty. Operand 72 states and 77 transitions. [2018-04-05 15:51:09,671 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 28 [2018-04-05 15:51:09,671 INFO L347 BasicCegarLoop]: Found error trace [2018-04-05 15:51:09,671 INFO L355 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-04-05 15:51:09,671 INFO L408 AbstractCegarLoop]: === Iteration 4 === [mainErr0EnsuresViolationMEMORY_LEAK, __U_MULTI_fjava_BubbleSort_alloca_true_valid_memsafety_true_termination_i__sortErr3RequiresViolation, __U_MULTI_fjava_BubbleSort_alloca_true_valid_memsafety_true_termination_i__sortErr11RequiresViolation, __U_MULTI_fjava_BubbleSort_alloca_true_valid_memsafety_true_termination_i__sortErr5RequiresViolation, __U_MULTI_fjava_BubbleSort_alloca_true_valid_memsafety_true_termination_i__sortErr0RequiresViolation, __U_MULTI_fjava_BubbleSort_alloca_true_valid_memsafety_true_termination_i__sortErr1RequiresViolation, __U_MULTI_fjava_BubbleSort_alloca_true_valid_memsafety_true_termination_i__sortErr6RequiresViolation, __U_MULTI_fjava_BubbleSort_alloca_true_valid_memsafety_true_termination_i__sortErr7RequiresViolation, __U_MULTI_fjava_BubbleSort_alloca_true_valid_memsafety_true_termination_i__sortErr10RequiresViolation, __U_MULTI_fjava_BubbleSort_alloca_true_valid_memsafety_true_termination_i__sortErr4RequiresViolation, __U_MULTI_fjava_BubbleSort_alloca_true_valid_memsafety_true_termination_i__sortErr2RequiresViolation, __U_MULTI_fjava_BubbleSort_alloca_true_valid_memsafety_true_termination_i__sortErr8RequiresViolation, __U_MULTI_fjava_BubbleSort_alloca_true_valid_memsafety_true_termination_i__sortErr9RequiresViolation]=== [2018-04-05 15:51:09,672 INFO L82 PathProgramCache]: Analyzing trace with hash 871621903, now seen corresponding path program 1 times No working directory specified, using /storage/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 5 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 5 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2018-04-05 15:51:09,695 INFO L68 tionRefinementEngine]: Using refinement strategy FixedRefinementStrategy [2018-04-05 15:51:09,749 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-04-05 15:51:09,762 INFO L270 TraceCheckSpWp]: Computing forward predicates... [2018-04-05 15:51:09,825 INFO L700 Elim1Store]: detected not equals via solver [2018-04-05 15:51:09,826 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 12 treesize of output 5 [2018-04-05 15:51:09,827 INFO L267 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2018-04-05 15:51:09,840 INFO L267 ElimStorePlain]: Start of recursive call 1: 1 dim-0 vars, 1 dim-1 vars, End of recursive call: 1 dim-0 vars, and 1 xjuncts. [2018-04-05 15:51:09,841 INFO L202 ElimStorePlain]: Needed 2 recursive calls to eliminate 2 variables, input treesize:12, output treesize:5 [2018-04-05 15:51:09,916 WARN L1033 $PredicateComparison]: unable to prove that (exists ((|main_#t~malloc9.base| Int)) (and (= (store |c_old(#valid)| |main_#t~malloc9.base| 0) |c_#valid|) (= 0 (select |c_old(#valid)| |main_#t~malloc9.base|)))) is different from true [2018-04-05 15:51:09,920 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-04-05 15:51:09,922 INFO L314 TraceCheckSpWp]: Computing backward predicates... [2018-04-05 15:51:10,013 WARN L1011 $PredicateComparison]: unable to prove that (forall ((|v_main_#t~malloc9.base_10| Int)) (or (not (= 0 (select |c_#valid| |v_main_#t~malloc9.base_10|))) (= |c_old(#valid)| (store |c_#valid| |v_main_#t~malloc9.base_10| 0)))) is different from false [2018-04-05 15:51:10,056 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-04-05 15:51:10,092 INFO L320 seRefinementStrategy]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2018-04-05 15:51:10,092 INFO L335 seRefinementStrategy]: Number of different interpolants: perfect sequences [5, 4] imperfect sequences [] total 7 [2018-04-05 15:51:10,092 INFO L442 AbstractCegarLoop]: Interpolant automaton has 8 states [2018-04-05 15:51:10,092 INFO L132 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2018-04-05 15:51:10,093 INFO L133 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=21, Unknown=2, NotChecked=18, Total=56 [2018-04-05 15:51:10,093 INFO L87 Difference]: Start difference. First operand 72 states and 77 transitions. Second operand 8 states. [2018-04-05 15:51:10,152 WARN L1011 $PredicateComparison]: unable to prove that (and (= |c_#valid| |c_old(#valid)|) (forall ((|v_main_#t~malloc9.base_10| Int)) (or (not (= 0 (select |c_#valid| |v_main_#t~malloc9.base_10|))) (= |c_old(#valid)| (store |c_#valid| |v_main_#t~malloc9.base_10| 0))))) is different from false [2018-04-05 15:51:10,803 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-04-05 15:51:10,803 INFO L93 Difference]: Finished difference Result 72 states and 77 transitions. [2018-04-05 15:51:10,804 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2018-04-05 15:51:10,804 INFO L78 Accepts]: Start accepts. Automaton has 8 states. Word has length 27 [2018-04-05 15:51:10,804 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-04-05 15:51:10,805 INFO L225 Difference]: With dead ends: 72 [2018-04-05 15:51:10,805 INFO L226 Difference]: Without dead ends: 65 [2018-04-05 15:51:10,806 INFO L567 BasicCegarLoop]: 0 DeclaredPredicates, 58 GetRequests, 47 SyntacticMatches, 1 SemanticMatches, 10 ConstructedPredicates, 3 IntricatePredicates, 0 DeprecatedPredicates, 5 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=29, Invalid=52, Unknown=3, NotChecked=48, Total=132 [2018-04-05 15:51:10,806 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 65 states. [2018-04-05 15:51:10,820 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 65 to 62. [2018-04-05 15:51:10,820 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 62 states. [2018-04-05 15:51:10,824 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 62 states to 62 states and 67 transitions. [2018-04-05 15:51:10,824 INFO L78 Accepts]: Start accepts. Automaton has 62 states and 67 transitions. Word has length 27 [2018-04-05 15:51:10,824 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-04-05 15:51:10,824 INFO L459 AbstractCegarLoop]: Abstraction has 62 states and 67 transitions. [2018-04-05 15:51:10,825 INFO L460 AbstractCegarLoop]: Interpolant automaton has 8 states. [2018-04-05 15:51:10,825 INFO L276 IsEmpty]: Start isEmpty. Operand 62 states and 67 transitions. [2018-04-05 15:51:10,826 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 35 [2018-04-05 15:51:10,826 INFO L347 BasicCegarLoop]: Found error trace [2018-04-05 15:51:10,828 INFO L355 BasicCegarLoop]: trace histogram [2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-04-05 15:51:10,828 INFO L408 AbstractCegarLoop]: === Iteration 5 === [mainErr0EnsuresViolationMEMORY_LEAK, __U_MULTI_fjava_BubbleSort_alloca_true_valid_memsafety_true_termination_i__sortErr3RequiresViolation, __U_MULTI_fjava_BubbleSort_alloca_true_valid_memsafety_true_termination_i__sortErr11RequiresViolation, __U_MULTI_fjava_BubbleSort_alloca_true_valid_memsafety_true_termination_i__sortErr5RequiresViolation, __U_MULTI_fjava_BubbleSort_alloca_true_valid_memsafety_true_termination_i__sortErr0RequiresViolation, __U_MULTI_fjava_BubbleSort_alloca_true_valid_memsafety_true_termination_i__sortErr1RequiresViolation, __U_MULTI_fjava_BubbleSort_alloca_true_valid_memsafety_true_termination_i__sortErr6RequiresViolation, __U_MULTI_fjava_BubbleSort_alloca_true_valid_memsafety_true_termination_i__sortErr7RequiresViolation, __U_MULTI_fjava_BubbleSort_alloca_true_valid_memsafety_true_termination_i__sortErr10RequiresViolation, __U_MULTI_fjava_BubbleSort_alloca_true_valid_memsafety_true_termination_i__sortErr4RequiresViolation, __U_MULTI_fjava_BubbleSort_alloca_true_valid_memsafety_true_termination_i__sortErr2RequiresViolation, __U_MULTI_fjava_BubbleSort_alloca_true_valid_memsafety_true_termination_i__sortErr8RequiresViolation, __U_MULTI_fjava_BubbleSort_alloca_true_valid_memsafety_true_termination_i__sortErr9RequiresViolation]=== [2018-04-05 15:51:10,828 INFO L82 PathProgramCache]: Analyzing trace with hash 331799200, now seen corresponding path program 1 times No working directory specified, using /storage/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 6 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 6 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2018-04-05 15:51:10,851 INFO L68 tionRefinementEngine]: Using refinement strategy FixedRefinementStrategy [2018-04-05 15:51:10,897 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-04-05 15:51:10,901 INFO L270 TraceCheckSpWp]: Computing forward predicates... [2018-04-05 15:51:11,458 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 3 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-04-05 15:51:11,461 INFO L314 TraceCheckSpWp]: Computing backward predicates... [2018-04-05 15:51:11,691 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 11 treesize of output 9 [2018-04-05 15:51:11,691 INFO L267 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2018-04-05 15:51:11,700 INFO L267 ElimStorePlain]: Start of recursive call 1: 1 dim-0 vars, 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-04-05 15:51:11,700 INFO L202 ElimStorePlain]: Needed 2 recursive calls to eliminate 2 variables, input treesize:20, output treesize:8 [2018-04-05 15:51:12,183 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 3 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-04-05 15:51:12,243 INFO L320 seRefinementStrategy]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2018-04-05 15:51:12,244 INFO L335 seRefinementStrategy]: Number of different interpolants: perfect sequences [9, 9] imperfect sequences [] total 17 [2018-04-05 15:51:12,244 INFO L442 AbstractCegarLoop]: Interpolant automaton has 18 states [2018-04-05 15:51:12,245 INFO L132 InterpolantAutomaton]: Constructing interpolant automaton starting with 18 interpolants. [2018-04-05 15:51:12,245 INFO L133 InterpolantAutomaton]: CoverageRelationStatistics Valid=56, Invalid=250, Unknown=0, NotChecked=0, Total=306 [2018-04-05 15:51:12,245 INFO L87 Difference]: Start difference. First operand 62 states and 67 transitions. Second operand 18 states. [2018-04-05 15:51:12,812 WARN L151 SmtUtils]: Spent 107ms on a formula simplification. DAG size of input: 17 DAG size of output 15 [2018-04-05 15:51:13,775 WARN L151 SmtUtils]: Spent 107ms on a formula simplification. DAG size of input: 25 DAG size of output 22 [2018-04-05 15:51:13,995 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-04-05 15:51:13,995 INFO L93 Difference]: Finished difference Result 85 states and 91 transitions. [2018-04-05 15:51:13,996 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2018-04-05 15:51:13,996 INFO L78 Accepts]: Start accepts. Automaton has 18 states. Word has length 34 [2018-04-05 15:51:13,996 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-04-05 15:51:13,997 INFO L225 Difference]: With dead ends: 85 [2018-04-05 15:51:13,997 INFO L226 Difference]: Without dead ends: 82 [2018-04-05 15:51:13,998 INFO L567 BasicCegarLoop]: 0 DeclaredPredicates, 77 GetRequests, 51 SyntacticMatches, 0 SemanticMatches, 26 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 85 ImplicationChecksByTransitivity, 2.1s TimeCoverageRelationStatistics Valid=187, Invalid=569, Unknown=0, NotChecked=0, Total=756 [2018-04-05 15:51:13,998 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 82 states. [2018-04-05 15:51:14,016 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 82 to 49. [2018-04-05 15:51:14,016 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 49 states. [2018-04-05 15:51:14,021 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 49 states to 49 states and 53 transitions. [2018-04-05 15:51:14,022 INFO L78 Accepts]: Start accepts. Automaton has 49 states and 53 transitions. Word has length 34 [2018-04-05 15:51:14,022 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-04-05 15:51:14,022 INFO L459 AbstractCegarLoop]: Abstraction has 49 states and 53 transitions. [2018-04-05 15:51:14,022 INFO L460 AbstractCegarLoop]: Interpolant automaton has 18 states. [2018-04-05 15:51:14,022 INFO L276 IsEmpty]: Start isEmpty. Operand 49 states and 53 transitions. [2018-04-05 15:51:14,023 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 36 [2018-04-05 15:51:14,023 INFO L347 BasicCegarLoop]: Found error trace [2018-04-05 15:51:14,024 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] [2018-04-05 15:51:14,024 INFO L408 AbstractCegarLoop]: === Iteration 6 === [mainErr0EnsuresViolationMEMORY_LEAK, __U_MULTI_fjava_BubbleSort_alloca_true_valid_memsafety_true_termination_i__sortErr3RequiresViolation, __U_MULTI_fjava_BubbleSort_alloca_true_valid_memsafety_true_termination_i__sortErr11RequiresViolation, __U_MULTI_fjava_BubbleSort_alloca_true_valid_memsafety_true_termination_i__sortErr5RequiresViolation, __U_MULTI_fjava_BubbleSort_alloca_true_valid_memsafety_true_termination_i__sortErr0RequiresViolation, __U_MULTI_fjava_BubbleSort_alloca_true_valid_memsafety_true_termination_i__sortErr1RequiresViolation, __U_MULTI_fjava_BubbleSort_alloca_true_valid_memsafety_true_termination_i__sortErr6RequiresViolation, __U_MULTI_fjava_BubbleSort_alloca_true_valid_memsafety_true_termination_i__sortErr7RequiresViolation, __U_MULTI_fjava_BubbleSort_alloca_true_valid_memsafety_true_termination_i__sortErr10RequiresViolation, __U_MULTI_fjava_BubbleSort_alloca_true_valid_memsafety_true_termination_i__sortErr4RequiresViolation, __U_MULTI_fjava_BubbleSort_alloca_true_valid_memsafety_true_termination_i__sortErr2RequiresViolation, __U_MULTI_fjava_BubbleSort_alloca_true_valid_memsafety_true_termination_i__sortErr8RequiresViolation, __U_MULTI_fjava_BubbleSort_alloca_true_valid_memsafety_true_termination_i__sortErr9RequiresViolation]=== [2018-04-05 15:51:14,024 INFO L82 PathProgramCache]: Analyzing trace with hash 1695840600, now seen corresponding path program 1 times No working directory specified, using /storage/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 7 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 7 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2018-04-05 15:51:14,060 INFO L68 tionRefinementEngine]: Using refinement strategy FixedRefinementStrategy [2018-04-05 15:51:14,103 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-04-05 15:51:14,107 INFO L270 TraceCheckSpWp]: Computing forward predicates... [2018-04-05 15:51:14,124 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 8 treesize of output 7 [2018-04-05 15:51:14,125 INFO L267 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2018-04-05 15:51:14,147 INFO L267 ElimStorePlain]: Start of recursive call 1: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-04-05 15:51:14,148 INFO L202 ElimStorePlain]: Needed 2 recursive calls to eliminate 1 variables, input treesize:12, output treesize:11 [2018-04-05 15:51:14,775 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2018-04-05 15:51:14,775 INFO L314 TraceCheckSpWp]: Computing backward predicates... [2018-04-05 15:51:15,745 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2018-04-05 15:51:15,791 INFO L320 seRefinementStrategy]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2018-04-05 15:51:15,791 INFO L335 seRefinementStrategy]: Number of different interpolants: perfect sequences [] imperfect sequences [9, 9] total 17 [2018-04-05 15:51:15,792 INFO L442 AbstractCegarLoop]: Interpolant automaton has 18 states [2018-04-05 15:51:15,792 INFO L132 InterpolantAutomaton]: Constructing interpolant automaton starting with 18 interpolants. [2018-04-05 15:51:15,792 INFO L133 InterpolantAutomaton]: CoverageRelationStatistics Valid=46, Invalid=260, Unknown=0, NotChecked=0, Total=306 [2018-04-05 15:51:15,793 INFO L87 Difference]: Start difference. First operand 49 states and 53 transitions. Second operand 18 states. [2018-04-05 15:51:17,363 WARN L148 SmtUtils]: Spent 126ms on a formula simplification that was a NOOP. DAG size: 38 [2018-04-05 15:51:17,785 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-04-05 15:51:17,785 INFO L93 Difference]: Finished difference Result 78 states and 85 transitions. [2018-04-05 15:51:17,786 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2018-04-05 15:51:17,786 INFO L78 Accepts]: Start accepts. Automaton has 18 states. Word has length 35 [2018-04-05 15:51:17,786 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-04-05 15:51:17,787 INFO L225 Difference]: With dead ends: 78 [2018-04-05 15:51:17,788 INFO L226 Difference]: Without dead ends: 77 [2018-04-05 15:51:17,795 INFO L567 BasicCegarLoop]: 0 DeclaredPredicates, 76 GetRequests, 53 SyntacticMatches, 0 SemanticMatches, 23 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 62 ImplicationChecksByTransitivity, 2.4s TimeCoverageRelationStatistics Valid=125, Invalid=475, Unknown=0, NotChecked=0, Total=600 [2018-04-05 15:51:17,795 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 77 states. [2018-04-05 15:51:17,829 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 77 to 71. [2018-04-05 15:51:17,830 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 71 states. [2018-04-05 15:51:17,846 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 71 states to 71 states and 77 transitions. [2018-04-05 15:51:17,846 INFO L78 Accepts]: Start accepts. Automaton has 71 states and 77 transitions. Word has length 35 [2018-04-05 15:51:17,846 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-04-05 15:51:17,853 INFO L459 AbstractCegarLoop]: Abstraction has 71 states and 77 transitions. [2018-04-05 15:51:17,854 INFO L460 AbstractCegarLoop]: Interpolant automaton has 18 states. [2018-04-05 15:51:17,854 INFO L276 IsEmpty]: Start isEmpty. Operand 71 states and 77 transitions. [2018-04-05 15:51:17,855 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 44 [2018-04-05 15:51:17,855 INFO L347 BasicCegarLoop]: Found error trace [2018-04-05 15:51:17,855 INFO L355 BasicCegarLoop]: trace histogram [3, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-04-05 15:51:17,856 INFO L408 AbstractCegarLoop]: === Iteration 7 === [mainErr0EnsuresViolationMEMORY_LEAK, __U_MULTI_fjava_BubbleSort_alloca_true_valid_memsafety_true_termination_i__sortErr3RequiresViolation, __U_MULTI_fjava_BubbleSort_alloca_true_valid_memsafety_true_termination_i__sortErr11RequiresViolation, __U_MULTI_fjava_BubbleSort_alloca_true_valid_memsafety_true_termination_i__sortErr5RequiresViolation, __U_MULTI_fjava_BubbleSort_alloca_true_valid_memsafety_true_termination_i__sortErr0RequiresViolation, __U_MULTI_fjava_BubbleSort_alloca_true_valid_memsafety_true_termination_i__sortErr1RequiresViolation, __U_MULTI_fjava_BubbleSort_alloca_true_valid_memsafety_true_termination_i__sortErr6RequiresViolation, __U_MULTI_fjava_BubbleSort_alloca_true_valid_memsafety_true_termination_i__sortErr7RequiresViolation, __U_MULTI_fjava_BubbleSort_alloca_true_valid_memsafety_true_termination_i__sortErr10RequiresViolation, __U_MULTI_fjava_BubbleSort_alloca_true_valid_memsafety_true_termination_i__sortErr4RequiresViolation, __U_MULTI_fjava_BubbleSort_alloca_true_valid_memsafety_true_termination_i__sortErr2RequiresViolation, __U_MULTI_fjava_BubbleSort_alloca_true_valid_memsafety_true_termination_i__sortErr8RequiresViolation, __U_MULTI_fjava_BubbleSort_alloca_true_valid_memsafety_true_termination_i__sortErr9RequiresViolation]=== [2018-04-05 15:51:17,856 INFO L82 PathProgramCache]: Analyzing trace with hash -1208868474, now seen corresponding path program 1 times No working directory specified, using /storage/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 8 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 8 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2018-04-05 15:51:17,890 INFO L68 tionRefinementEngine]: Using refinement strategy FixedRefinementStrategy [2018-04-05 15:51:17,948 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-04-05 15:51:17,956 INFO L270 TraceCheckSpWp]: Computing forward predicates... [2018-04-05 15:51:18,067 INFO L134 CoverageAnalysis]: Checked inductivity of 11 backedges. 7 proven. 0 refuted. 0 times theorem prover too weak. 4 trivial. 0 not checked. [2018-04-05 15:51:18,068 INFO L314 TraceCheckSpWp]: Computing backward predicates... [2018-04-05 15:51:18,119 INFO L134 CoverageAnalysis]: Checked inductivity of 11 backedges. 7 proven. 0 refuted. 0 times theorem prover too weak. 4 trivial. 0 not checked. [2018-04-05 15:51:18,184 INFO L320 seRefinementStrategy]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2018-04-05 15:51:18,185 INFO L335 seRefinementStrategy]: Number of different interpolants: perfect sequences [4, 4] imperfect sequences [] total 5 [2018-04-05 15:51:18,185 INFO L442 AbstractCegarLoop]: Interpolant automaton has 5 states [2018-04-05 15:51:18,185 INFO L132 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2018-04-05 15:51:18,185 INFO L133 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2018-04-05 15:51:18,186 INFO L87 Difference]: Start difference. First operand 71 states and 77 transitions. Second operand 5 states. [2018-04-05 15:51:18,432 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-04-05 15:51:18,432 INFO L93 Difference]: Finished difference Result 133 states and 145 transitions. [2018-04-05 15:51:18,433 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2018-04-05 15:51:18,433 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 43 [2018-04-05 15:51:18,433 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-04-05 15:51:18,434 INFO L225 Difference]: With dead ends: 133 [2018-04-05 15:51:18,434 INFO L226 Difference]: Without dead ends: 103 [2018-04-05 15:51:18,435 INFO L567 BasicCegarLoop]: 0 DeclaredPredicates, 86 GetRequests, 82 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=14, Invalid=16, Unknown=0, NotChecked=0, Total=30 [2018-04-05 15:51:18,435 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 103 states. [2018-04-05 15:51:18,458 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 103 to 73. [2018-04-05 15:51:18,458 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 73 states. [2018-04-05 15:51:18,459 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 73 states to 73 states and 78 transitions. [2018-04-05 15:51:18,460 INFO L78 Accepts]: Start accepts. Automaton has 73 states and 78 transitions. Word has length 43 [2018-04-05 15:51:18,460 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-04-05 15:51:18,460 INFO L459 AbstractCegarLoop]: Abstraction has 73 states and 78 transitions. [2018-04-05 15:51:18,460 INFO L460 AbstractCegarLoop]: Interpolant automaton has 5 states. [2018-04-05 15:51:18,460 INFO L276 IsEmpty]: Start isEmpty. Operand 73 states and 78 transitions. [2018-04-05 15:51:18,462 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 54 [2018-04-05 15:51:18,462 INFO L347 BasicCegarLoop]: Found error trace [2018-04-05 15:51:18,462 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] [2018-04-05 15:51:18,463 INFO L408 AbstractCegarLoop]: === Iteration 8 === [mainErr0EnsuresViolationMEMORY_LEAK, __U_MULTI_fjava_BubbleSort_alloca_true_valid_memsafety_true_termination_i__sortErr3RequiresViolation, __U_MULTI_fjava_BubbleSort_alloca_true_valid_memsafety_true_termination_i__sortErr11RequiresViolation, __U_MULTI_fjava_BubbleSort_alloca_true_valid_memsafety_true_termination_i__sortErr5RequiresViolation, __U_MULTI_fjava_BubbleSort_alloca_true_valid_memsafety_true_termination_i__sortErr0RequiresViolation, __U_MULTI_fjava_BubbleSort_alloca_true_valid_memsafety_true_termination_i__sortErr1RequiresViolation, __U_MULTI_fjava_BubbleSort_alloca_true_valid_memsafety_true_termination_i__sortErr6RequiresViolation, __U_MULTI_fjava_BubbleSort_alloca_true_valid_memsafety_true_termination_i__sortErr7RequiresViolation, __U_MULTI_fjava_BubbleSort_alloca_true_valid_memsafety_true_termination_i__sortErr10RequiresViolation, __U_MULTI_fjava_BubbleSort_alloca_true_valid_memsafety_true_termination_i__sortErr4RequiresViolation, __U_MULTI_fjava_BubbleSort_alloca_true_valid_memsafety_true_termination_i__sortErr2RequiresViolation, __U_MULTI_fjava_BubbleSort_alloca_true_valid_memsafety_true_termination_i__sortErr8RequiresViolation, __U_MULTI_fjava_BubbleSort_alloca_true_valid_memsafety_true_termination_i__sortErr9RequiresViolation]=== [2018-04-05 15:51:18,463 INFO L82 PathProgramCache]: Analyzing trace with hash 1193968306, now seen corresponding path program 2 times No working directory specified, using /storage/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 9 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 9 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2018-04-05 15:51:18,496 INFO L68 tionRefinementEngine]: Using refinement strategy FixedRefinementStrategy [2018-04-05 15:51:18,574 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-04-05 15:51:18,582 INFO L270 TraceCheckSpWp]: Computing forward predicates... [2018-04-05 15:51:18,815 INFO L134 CoverageAnalysis]: Checked inductivity of 27 backedges. 21 proven. 2 refuted. 0 times theorem prover too weak. 4 trivial. 0 not checked. [2018-04-05 15:51:18,849 INFO L314 TraceCheckSpWp]: Computing backward predicates... [2018-04-05 15:51:19,043 INFO L134 CoverageAnalysis]: Checked inductivity of 27 backedges. 21 proven. 2 refuted. 0 times theorem prover too weak. 4 trivial. 0 not checked. [2018-04-05 15:51:19,104 INFO L320 seRefinementStrategy]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2018-04-05 15:51:19,105 INFO L335 seRefinementStrategy]: Number of different interpolants: perfect sequences [] imperfect sequences [8, 8] total 8 [2018-04-05 15:51:19,105 INFO L442 AbstractCegarLoop]: Interpolant automaton has 8 states [2018-04-05 15:51:19,105 INFO L132 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2018-04-05 15:51:19,105 INFO L133 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=41, Unknown=0, NotChecked=0, Total=56 [2018-04-05 15:51:19,106 INFO L87 Difference]: Start difference. First operand 73 states and 78 transitions. Second operand 8 states. [2018-04-05 15:51:19,791 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-04-05 15:51:19,791 INFO L93 Difference]: Finished difference Result 177 states and 190 transitions. [2018-04-05 15:51:19,791 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2018-04-05 15:51:19,791 INFO L78 Accepts]: Start accepts. Automaton has 8 states. Word has length 53 [2018-04-05 15:51:19,793 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-04-05 15:51:19,794 INFO L225 Difference]: With dead ends: 177 [2018-04-05 15:51:19,794 INFO L226 Difference]: Without dead ends: 142 [2018-04-05 15:51:19,795 INFO L567 BasicCegarLoop]: 0 DeclaredPredicates, 112 GetRequests, 95 SyntacticMatches, 5 SemanticMatches, 12 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 22 ImplicationChecksByTransitivity, 0.6s TimeCoverageRelationStatistics Valid=50, Invalid=132, Unknown=0, NotChecked=0, Total=182 [2018-04-05 15:51:19,795 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 142 states. [2018-04-05 15:51:19,835 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 142 to 109. [2018-04-05 15:51:19,835 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 109 states. [2018-04-05 15:51:19,836 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 109 states to 109 states and 116 transitions. [2018-04-05 15:51:19,837 INFO L78 Accepts]: Start accepts. Automaton has 109 states and 116 transitions. Word has length 53 [2018-04-05 15:51:19,837 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-04-05 15:51:19,837 INFO L459 AbstractCegarLoop]: Abstraction has 109 states and 116 transitions. [2018-04-05 15:51:19,837 INFO L460 AbstractCegarLoop]: Interpolant automaton has 8 states. [2018-04-05 15:51:19,837 INFO L276 IsEmpty]: Start isEmpty. Operand 109 states and 116 transitions. [2018-04-05 15:51:19,841 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 64 [2018-04-05 15:51:19,841 INFO L347 BasicCegarLoop]: Found error trace [2018-04-05 15:51:19,842 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] [2018-04-05 15:51:19,842 INFO L408 AbstractCegarLoop]: === Iteration 9 === [mainErr0EnsuresViolationMEMORY_LEAK, __U_MULTI_fjava_BubbleSort_alloca_true_valid_memsafety_true_termination_i__sortErr3RequiresViolation, __U_MULTI_fjava_BubbleSort_alloca_true_valid_memsafety_true_termination_i__sortErr11RequiresViolation, __U_MULTI_fjava_BubbleSort_alloca_true_valid_memsafety_true_termination_i__sortErr5RequiresViolation, __U_MULTI_fjava_BubbleSort_alloca_true_valid_memsafety_true_termination_i__sortErr0RequiresViolation, __U_MULTI_fjava_BubbleSort_alloca_true_valid_memsafety_true_termination_i__sortErr1RequiresViolation, __U_MULTI_fjava_BubbleSort_alloca_true_valid_memsafety_true_termination_i__sortErr6RequiresViolation, __U_MULTI_fjava_BubbleSort_alloca_true_valid_memsafety_true_termination_i__sortErr7RequiresViolation, __U_MULTI_fjava_BubbleSort_alloca_true_valid_memsafety_true_termination_i__sortErr10RequiresViolation, __U_MULTI_fjava_BubbleSort_alloca_true_valid_memsafety_true_termination_i__sortErr4RequiresViolation, __U_MULTI_fjava_BubbleSort_alloca_true_valid_memsafety_true_termination_i__sortErr2RequiresViolation, __U_MULTI_fjava_BubbleSort_alloca_true_valid_memsafety_true_termination_i__sortErr8RequiresViolation, __U_MULTI_fjava_BubbleSort_alloca_true_valid_memsafety_true_termination_i__sortErr9RequiresViolation]=== [2018-04-05 15:51:19,842 INFO L82 PathProgramCache]: Analyzing trace with hash 1869372638, now seen corresponding path program 3 times No working directory specified, using /storage/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 10 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 10 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2018-04-05 15:51:19,863 INFO L68 tionRefinementEngine]: Using refinement strategy FixedRefinementStrategy [2018-04-05 15:51:19,902 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-04-05 15:51:19,907 INFO L270 TraceCheckSpWp]: Computing forward predicates... [2018-04-05 15:51:20,491 INFO L134 CoverageAnalysis]: Checked inductivity of 53 backedges. 11 proven. 42 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-04-05 15:51:20,492 INFO L314 TraceCheckSpWp]: Computing backward predicates... [2018-04-05 15:51:21,358 INFO L134 CoverageAnalysis]: Checked inductivity of 53 backedges. 11 proven. 42 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-04-05 15:51:21,399 INFO L320 seRefinementStrategy]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2018-04-05 15:51:21,399 INFO L335 seRefinementStrategy]: Number of different interpolants: perfect sequences [] imperfect sequences [13, 13] total 16 [2018-04-05 15:51:21,400 INFO L442 AbstractCegarLoop]: Interpolant automaton has 16 states [2018-04-05 15:51:21,400 INFO L132 InterpolantAutomaton]: Constructing interpolant automaton starting with 16 interpolants. [2018-04-05 15:51:21,400 INFO L133 InterpolantAutomaton]: CoverageRelationStatistics Valid=46, Invalid=194, Unknown=0, NotChecked=0, Total=240 [2018-04-05 15:51:21,400 INFO L87 Difference]: Start difference. First operand 109 states and 116 transitions. Second operand 16 states. [2018-04-05 15:51:23,172 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-04-05 15:51:23,172 INFO L93 Difference]: Finished difference Result 255 states and 272 transitions. [2018-04-05 15:51:23,173 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 18 states. [2018-04-05 15:51:23,174 INFO L78 Accepts]: Start accepts. Automaton has 16 states. Word has length 63 [2018-04-05 15:51:23,174 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-04-05 15:51:23,175 INFO L225 Difference]: With dead ends: 255 [2018-04-05 15:51:23,180 INFO L226 Difference]: Without dead ends: 181 [2018-04-05 15:51:23,181 INFO L567 BasicCegarLoop]: 0 DeclaredPredicates, 138 GetRequests, 104 SyntacticMatches, 8 SemanticMatches, 26 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 154 ImplicationChecksByTransitivity, 2.0s TimeCoverageRelationStatistics Valid=161, Invalid=595, Unknown=0, NotChecked=0, Total=756 [2018-04-05 15:51:23,181 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 181 states. [2018-04-05 15:51:23,226 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 181 to 147. [2018-04-05 15:51:23,226 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 147 states. [2018-04-05 15:51:23,228 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 147 states to 147 states and 157 transitions. [2018-04-05 15:51:23,230 INFO L78 Accepts]: Start accepts. Automaton has 147 states and 157 transitions. Word has length 63 [2018-04-05 15:51:23,231 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-04-05 15:51:23,231 INFO L459 AbstractCegarLoop]: Abstraction has 147 states and 157 transitions. [2018-04-05 15:51:23,231 INFO L460 AbstractCegarLoop]: Interpolant automaton has 16 states. [2018-04-05 15:51:23,231 INFO L276 IsEmpty]: Start isEmpty. Operand 147 states and 157 transitions. [2018-04-05 15:51:23,233 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 74 [2018-04-05 15:51:23,233 INFO L347 BasicCegarLoop]: Found error trace [2018-04-05 15:51:23,233 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] [2018-04-05 15:51:23,234 INFO L408 AbstractCegarLoop]: === Iteration 10 === [mainErr0EnsuresViolationMEMORY_LEAK, __U_MULTI_fjava_BubbleSort_alloca_true_valid_memsafety_true_termination_i__sortErr3RequiresViolation, __U_MULTI_fjava_BubbleSort_alloca_true_valid_memsafety_true_termination_i__sortErr11RequiresViolation, __U_MULTI_fjava_BubbleSort_alloca_true_valid_memsafety_true_termination_i__sortErr5RequiresViolation, __U_MULTI_fjava_BubbleSort_alloca_true_valid_memsafety_true_termination_i__sortErr0RequiresViolation, __U_MULTI_fjava_BubbleSort_alloca_true_valid_memsafety_true_termination_i__sortErr1RequiresViolation, __U_MULTI_fjava_BubbleSort_alloca_true_valid_memsafety_true_termination_i__sortErr6RequiresViolation, __U_MULTI_fjava_BubbleSort_alloca_true_valid_memsafety_true_termination_i__sortErr7RequiresViolation, __U_MULTI_fjava_BubbleSort_alloca_true_valid_memsafety_true_termination_i__sortErr10RequiresViolation, __U_MULTI_fjava_BubbleSort_alloca_true_valid_memsafety_true_termination_i__sortErr4RequiresViolation, __U_MULTI_fjava_BubbleSort_alloca_true_valid_memsafety_true_termination_i__sortErr2RequiresViolation, __U_MULTI_fjava_BubbleSort_alloca_true_valid_memsafety_true_termination_i__sortErr8RequiresViolation, __U_MULTI_fjava_BubbleSort_alloca_true_valid_memsafety_true_termination_i__sortErr9RequiresViolation]=== [2018-04-05 15:51:23,240 INFO L82 PathProgramCache]: Analyzing trace with hash 1374973962, now seen corresponding path program 4 times No working directory specified, using /storage/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 11 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 11 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2018-04-05 15:51:23,255 INFO L68 tionRefinementEngine]: Using refinement strategy FixedRefinementStrategy [2018-04-05 15:51:23,333 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-04-05 15:51:23,340 INFO L270 TraceCheckSpWp]: Computing forward predicates... [2018-04-05 15:51:23,933 INFO L134 CoverageAnalysis]: Checked inductivity of 89 backedges. 31 proven. 58 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-04-05 15:51:23,960 INFO L314 TraceCheckSpWp]: Computing backward predicates... [2018-04-05 15:51:24,440 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 13 treesize of output 11 [2018-04-05 15:51:24,441 INFO L267 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2018-04-05 15:51:24,466 INFO L267 ElimStorePlain]: Start of recursive call 1: 2 dim-0 vars, 1 dim-1 vars, End of recursive call: 1 dim-0 vars, and 1 xjuncts. [2018-04-05 15:51:24,466 INFO L202 ElimStorePlain]: Needed 2 recursive calls to eliminate 3 variables, input treesize:26, output treesize:13 [2018-04-05 15:51:24,612 INFO L134 CoverageAnalysis]: Checked inductivity of 89 backedges. 19 proven. 70 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-04-05 15:51:24,676 INFO L320 seRefinementStrategy]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2018-04-05 15:51:24,676 INFO L335 seRefinementStrategy]: Number of different interpolants: perfect sequences [] imperfect sequences [11, 11] total 16 [2018-04-05 15:51:24,677 INFO L442 AbstractCegarLoop]: Interpolant automaton has 17 states [2018-04-05 15:51:24,677 INFO L132 InterpolantAutomaton]: Constructing interpolant automaton starting with 17 interpolants. [2018-04-05 15:51:24,677 INFO L133 InterpolantAutomaton]: CoverageRelationStatistics Valid=54, Invalid=218, Unknown=0, NotChecked=0, Total=272 [2018-04-05 15:51:24,677 INFO L87 Difference]: Start difference. First operand 147 states and 157 transitions. Second operand 17 states. [2018-04-05 15:51:26,830 WARN L151 SmtUtils]: Spent 102ms on a formula simplification. DAG size of input: 23 DAG size of output 21 [2018-04-05 15:51:27,022 WARN L151 SmtUtils]: Spent 103ms on a formula simplification. DAG size of input: 26 DAG size of output 24 [2018-04-05 15:51:27,591 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-04-05 15:51:27,591 INFO L93 Difference]: Finished difference Result 148 states and 157 transitions. [2018-04-05 15:51:27,592 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 19 states. [2018-04-05 15:51:27,592 INFO L78 Accepts]: Start accepts. Automaton has 17 states. Word has length 73 [2018-04-05 15:51:27,592 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-04-05 15:51:27,593 INFO L225 Difference]: With dead ends: 148 [2018-04-05 15:51:27,594 INFO L226 Difference]: Without dead ends: 147 [2018-04-05 15:51:27,594 INFO L567 BasicCegarLoop]: 0 DeclaredPredicates, 161 GetRequests, 126 SyntacticMatches, 5 SemanticMatches, 30 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 180 ImplicationChecksByTransitivity, 2.4s TimeCoverageRelationStatistics Valid=231, Invalid=761, Unknown=0, NotChecked=0, Total=992 [2018-04-05 15:51:27,595 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 147 states. [2018-04-05 15:51:27,640 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 147 to 147. [2018-04-05 15:51:27,640 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 147 states. [2018-04-05 15:51:27,642 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 147 states to 147 states and 156 transitions. [2018-04-05 15:51:27,642 INFO L78 Accepts]: Start accepts. Automaton has 147 states and 156 transitions. Word has length 73 [2018-04-05 15:51:27,642 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-04-05 15:51:27,642 INFO L459 AbstractCegarLoop]: Abstraction has 147 states and 156 transitions. [2018-04-05 15:51:27,643 INFO L460 AbstractCegarLoop]: Interpolant automaton has 17 states. [2018-04-05 15:51:27,645 INFO L276 IsEmpty]: Start isEmpty. Operand 147 states and 156 transitions. [2018-04-05 15:51:27,646 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 84 [2018-04-05 15:51:27,647 INFO L347 BasicCegarLoop]: Found error trace [2018-04-05 15:51:27,647 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] [2018-04-05 15:51:27,647 INFO L408 AbstractCegarLoop]: === Iteration 11 === [mainErr0EnsuresViolationMEMORY_LEAK, __U_MULTI_fjava_BubbleSort_alloca_true_valid_memsafety_true_termination_i__sortErr3RequiresViolation, __U_MULTI_fjava_BubbleSort_alloca_true_valid_memsafety_true_termination_i__sortErr11RequiresViolation, __U_MULTI_fjava_BubbleSort_alloca_true_valid_memsafety_true_termination_i__sortErr5RequiresViolation, __U_MULTI_fjava_BubbleSort_alloca_true_valid_memsafety_true_termination_i__sortErr0RequiresViolation, __U_MULTI_fjava_BubbleSort_alloca_true_valid_memsafety_true_termination_i__sortErr1RequiresViolation, __U_MULTI_fjava_BubbleSort_alloca_true_valid_memsafety_true_termination_i__sortErr6RequiresViolation, __U_MULTI_fjava_BubbleSort_alloca_true_valid_memsafety_true_termination_i__sortErr7RequiresViolation, __U_MULTI_fjava_BubbleSort_alloca_true_valid_memsafety_true_termination_i__sortErr10RequiresViolation, __U_MULTI_fjava_BubbleSort_alloca_true_valid_memsafety_true_termination_i__sortErr4RequiresViolation, __U_MULTI_fjava_BubbleSort_alloca_true_valid_memsafety_true_termination_i__sortErr2RequiresViolation, __U_MULTI_fjava_BubbleSort_alloca_true_valid_memsafety_true_termination_i__sortErr8RequiresViolation, __U_MULTI_fjava_BubbleSort_alloca_true_valid_memsafety_true_termination_i__sortErr9RequiresViolation]=== [2018-04-05 15:51:27,647 INFO L82 PathProgramCache]: Analyzing trace with hash 34571958, now seen corresponding path program 5 times No working directory specified, using /storage/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 12 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 12 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2018-04-05 15:51:27,669 INFO L68 tionRefinementEngine]: Using refinement strategy FixedRefinementStrategy [2018-04-05 15:51:27,745 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-04-05 15:51:27,749 INFO L270 TraceCheckSpWp]: Computing forward predicates... [2018-04-05 15:51:28,607 INFO L134 CoverageAnalysis]: Checked inductivity of 135 backedges. 27 proven. 108 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-04-05 15:51:28,607 INFO L314 TraceCheckSpWp]: Computing backward predicates... [2018-04-05 15:51:29,515 INFO L134 CoverageAnalysis]: Checked inductivity of 135 backedges. 27 proven. 108 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-04-05 15:51:29,577 INFO L320 seRefinementStrategy]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2018-04-05 15:51:29,577 INFO L335 seRefinementStrategy]: Number of different interpolants: perfect sequences [] imperfect sequences [17, 17] total 22 [2018-04-05 15:51:29,578 INFO L442 AbstractCegarLoop]: Interpolant automaton has 22 states [2018-04-05 15:51:29,578 INFO L132 InterpolantAutomaton]: Constructing interpolant automaton starting with 22 interpolants. [2018-04-05 15:51:29,579 INFO L133 InterpolantAutomaton]: CoverageRelationStatistics Valid=78, Invalid=384, Unknown=0, NotChecked=0, Total=462 [2018-04-05 15:51:29,579 INFO L87 Difference]: Start difference. First operand 147 states and 156 transitions. Second operand 22 states. [2018-04-05 15:51:32,762 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-04-05 15:51:32,763 INFO L93 Difference]: Finished difference Result 331 states and 352 transitions. [2018-04-05 15:51:32,763 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 24 states. [2018-04-05 15:51:32,763 INFO L78 Accepts]: Start accepts. Automaton has 22 states. Word has length 83 [2018-04-05 15:51:32,764 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-04-05 15:51:32,765 INFO L225 Difference]: With dead ends: 331 [2018-04-05 15:51:32,765 INFO L226 Difference]: Without dead ends: 219 [2018-04-05 15:51:32,769 INFO L567 BasicCegarLoop]: 0 DeclaredPredicates, 183 GetRequests, 136 SyntacticMatches, 10 SemanticMatches, 37 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 346 ImplicationChecksByTransitivity, 3.0s TimeCoverageRelationStatistics Valid=290, Invalid=1192, Unknown=0, NotChecked=0, Total=1482 [2018-04-05 15:51:32,769 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 219 states. [2018-04-05 15:51:32,804 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 219 to 185. [2018-04-05 15:51:32,804 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 185 states. [2018-04-05 15:51:32,806 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 185 states to 185 states and 197 transitions. [2018-04-05 15:51:32,806 INFO L78 Accepts]: Start accepts. Automaton has 185 states and 197 transitions. Word has length 83 [2018-04-05 15:51:32,807 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-04-05 15:51:32,807 INFO L459 AbstractCegarLoop]: Abstraction has 185 states and 197 transitions. [2018-04-05 15:51:32,807 INFO L460 AbstractCegarLoop]: Interpolant automaton has 22 states. [2018-04-05 15:51:32,807 INFO L276 IsEmpty]: Start isEmpty. Operand 185 states and 197 transitions. [2018-04-05 15:51:32,808 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 94 [2018-04-05 15:51:32,808 INFO L347 BasicCegarLoop]: Found error trace [2018-04-05 15:51:32,809 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] [2018-04-05 15:51:32,810 INFO L408 AbstractCegarLoop]: === Iteration 12 === [mainErr0EnsuresViolationMEMORY_LEAK, __U_MULTI_fjava_BubbleSort_alloca_true_valid_memsafety_true_termination_i__sortErr3RequiresViolation, __U_MULTI_fjava_BubbleSort_alloca_true_valid_memsafety_true_termination_i__sortErr11RequiresViolation, __U_MULTI_fjava_BubbleSort_alloca_true_valid_memsafety_true_termination_i__sortErr5RequiresViolation, __U_MULTI_fjava_BubbleSort_alloca_true_valid_memsafety_true_termination_i__sortErr0RequiresViolation, __U_MULTI_fjava_BubbleSort_alloca_true_valid_memsafety_true_termination_i__sortErr1RequiresViolation, __U_MULTI_fjava_BubbleSort_alloca_true_valid_memsafety_true_termination_i__sortErr6RequiresViolation, __U_MULTI_fjava_BubbleSort_alloca_true_valid_memsafety_true_termination_i__sortErr7RequiresViolation, __U_MULTI_fjava_BubbleSort_alloca_true_valid_memsafety_true_termination_i__sortErr10RequiresViolation, __U_MULTI_fjava_BubbleSort_alloca_true_valid_memsafety_true_termination_i__sortErr4RequiresViolation, __U_MULTI_fjava_BubbleSort_alloca_true_valid_memsafety_true_termination_i__sortErr2RequiresViolation, __U_MULTI_fjava_BubbleSort_alloca_true_valid_memsafety_true_termination_i__sortErr8RequiresViolation, __U_MULTI_fjava_BubbleSort_alloca_true_valid_memsafety_true_termination_i__sortErr9RequiresViolation]=== [2018-04-05 15:51:32,810 INFO L82 PathProgramCache]: Analyzing trace with hash -719696926, now seen corresponding path program 6 times No working directory specified, using /storage/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 13 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 13 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2018-04-05 15:51:32,832 INFO L68 tionRefinementEngine]: Using refinement strategy FixedRefinementStrategy [2018-04-05 15:51:32,911 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-04-05 15:51:32,915 INFO L270 TraceCheckSpWp]: Computing forward predicates... [2018-04-05 15:51:33,768 INFO L134 CoverageAnalysis]: Checked inductivity of 191 backedges. 63 proven. 128 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-04-05 15:51:33,776 INFO L314 TraceCheckSpWp]: Computing backward predicates... [2018-04-05 15:51:34,551 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 13 treesize of output 11 [2018-04-05 15:51:34,552 INFO L267 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2018-04-05 15:51:34,573 INFO L267 ElimStorePlain]: Start of recursive call 1: 2 dim-0 vars, 1 dim-1 vars, End of recursive call: 1 dim-0 vars, and 1 xjuncts. [2018-04-05 15:51:34,573 INFO L202 ElimStorePlain]: Needed 2 recursive calls to eliminate 3 variables, input treesize:26, output treesize:13 [2018-04-05 15:51:34,835 INFO L134 CoverageAnalysis]: Checked inductivity of 191 backedges. 42 proven. 149 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-04-05 15:51:34,901 INFO L320 seRefinementStrategy]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2018-04-05 15:51:34,901 INFO L335 seRefinementStrategy]: Number of different interpolants: perfect sequences [] imperfect sequences [15, 15] total 22 [2018-04-05 15:51:34,902 INFO L442 AbstractCegarLoop]: Interpolant automaton has 23 states [2018-04-05 15:51:34,902 INFO L132 InterpolantAutomaton]: Constructing interpolant automaton starting with 23 interpolants. [2018-04-05 15:51:34,902 INFO L133 InterpolantAutomaton]: CoverageRelationStatistics Valid=86, Invalid=420, Unknown=0, NotChecked=0, Total=506 [2018-04-05 15:51:34,902 INFO L87 Difference]: Start difference. First operand 185 states and 197 transitions. Second operand 23 states. [2018-04-05 15:51:37,345 WARN L151 SmtUtils]: Spent 101ms on a formula simplification. DAG size of input: 22 DAG size of output 19 [2018-04-05 15:51:37,826 WARN L151 SmtUtils]: Spent 113ms on a formula simplification. DAG size of input: 23 DAG size of output 21 [2018-04-05 15:51:38,069 WARN L151 SmtUtils]: Spent 131ms on a formula simplification. DAG size of input: 26 DAG size of output 24 [2018-04-05 15:51:39,842 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-04-05 15:51:39,867 INFO L93 Difference]: Finished difference Result 186 states and 197 transitions. [2018-04-05 15:51:39,868 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 26 states. [2018-04-05 15:51:39,868 INFO L78 Accepts]: Start accepts. Automaton has 23 states. Word has length 93 [2018-04-05 15:51:39,869 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-04-05 15:51:39,870 INFO L225 Difference]: With dead ends: 186 [2018-04-05 15:51:39,870 INFO L226 Difference]: Without dead ends: 185 [2018-04-05 15:51:39,876 INFO L567 BasicCegarLoop]: 0 DeclaredPredicates, 207 GetRequests, 158 SyntacticMatches, 7 SemanticMatches, 42 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 442 ImplicationChecksByTransitivity, 3.7s TimeCoverageRelationStatistics Valid=386, Invalid=1506, Unknown=0, NotChecked=0, Total=1892 [2018-04-05 15:51:39,877 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 185 states. [2018-04-05 15:51:39,913 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 185 to 185. [2018-04-05 15:51:39,914 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 185 states. [2018-04-05 15:51:39,915 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 185 states to 185 states and 196 transitions. [2018-04-05 15:51:39,915 INFO L78 Accepts]: Start accepts. Automaton has 185 states and 196 transitions. Word has length 93 [2018-04-05 15:51:39,915 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-04-05 15:51:39,916 INFO L459 AbstractCegarLoop]: Abstraction has 185 states and 196 transitions. [2018-04-05 15:51:39,916 INFO L460 AbstractCegarLoop]: Interpolant automaton has 23 states. [2018-04-05 15:51:39,918 INFO L276 IsEmpty]: Start isEmpty. Operand 185 states and 196 transitions. [2018-04-05 15:51:39,919 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 104 [2018-04-05 15:51:39,920 INFO L347 BasicCegarLoop]: Found error trace [2018-04-05 15:51:39,920 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] [2018-04-05 15:51:39,920 INFO L408 AbstractCegarLoop]: === Iteration 13 === [mainErr0EnsuresViolationMEMORY_LEAK, __U_MULTI_fjava_BubbleSort_alloca_true_valid_memsafety_true_termination_i__sortErr3RequiresViolation, __U_MULTI_fjava_BubbleSort_alloca_true_valid_memsafety_true_termination_i__sortErr11RequiresViolation, __U_MULTI_fjava_BubbleSort_alloca_true_valid_memsafety_true_termination_i__sortErr5RequiresViolation, __U_MULTI_fjava_BubbleSort_alloca_true_valid_memsafety_true_termination_i__sortErr0RequiresViolation, __U_MULTI_fjava_BubbleSort_alloca_true_valid_memsafety_true_termination_i__sortErr1RequiresViolation, __U_MULTI_fjava_BubbleSort_alloca_true_valid_memsafety_true_termination_i__sortErr6RequiresViolation, __U_MULTI_fjava_BubbleSort_alloca_true_valid_memsafety_true_termination_i__sortErr7RequiresViolation, __U_MULTI_fjava_BubbleSort_alloca_true_valid_memsafety_true_termination_i__sortErr10RequiresViolation, __U_MULTI_fjava_BubbleSort_alloca_true_valid_memsafety_true_termination_i__sortErr4RequiresViolation, __U_MULTI_fjava_BubbleSort_alloca_true_valid_memsafety_true_termination_i__sortErr2RequiresViolation, __U_MULTI_fjava_BubbleSort_alloca_true_valid_memsafety_true_termination_i__sortErr8RequiresViolation, __U_MULTI_fjava_BubbleSort_alloca_true_valid_memsafety_true_termination_i__sortErr9RequiresViolation]=== [2018-04-05 15:51:39,920 INFO L82 PathProgramCache]: Analyzing trace with hash -522816370, now seen corresponding path program 7 times No working directory specified, using /storage/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 14 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 14 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2018-04-05 15:51:39,938 INFO L68 tionRefinementEngine]: Using refinement strategy FixedRefinementStrategy [2018-04-05 15:51:39,976 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-04-05 15:51:39,980 INFO L270 TraceCheckSpWp]: Computing forward predicates... [2018-04-05 15:51:41,104 INFO L134 CoverageAnalysis]: Checked inductivity of 257 backedges. 53 proven. 204 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-04-05 15:51:41,105 INFO L314 TraceCheckSpWp]: Computing backward predicates... [2018-04-05 15:51:42,346 INFO L134 CoverageAnalysis]: Checked inductivity of 257 backedges. 53 proven. 204 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-04-05 15:51:42,383 INFO L320 seRefinementStrategy]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2018-04-05 15:51:42,384 INFO L335 seRefinementStrategy]: Number of different interpolants: perfect sequences [] imperfect sequences [21, 21] total 28 [2018-04-05 15:51:42,384 INFO L442 AbstractCegarLoop]: Interpolant automaton has 28 states [2018-04-05 15:51:42,385 INFO L132 InterpolantAutomaton]: Constructing interpolant automaton starting with 28 interpolants. [2018-04-05 15:51:42,385 INFO L133 InterpolantAutomaton]: CoverageRelationStatistics Valid=118, Invalid=638, Unknown=0, NotChecked=0, Total=756 [2018-04-05 15:51:42,385 INFO L87 Difference]: Start difference. First operand 185 states and 196 transitions. Second operand 28 states. [2018-04-05 15:51:45,146 WARN L148 SmtUtils]: Spent 103ms on a formula simplification that was a NOOP. DAG size: 13 [2018-04-05 15:51:47,592 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-04-05 15:51:47,593 INFO L93 Difference]: Finished difference Result 407 states and 432 transitions. [2018-04-05 15:51:47,594 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 30 states. [2018-04-05 15:51:47,594 INFO L78 Accepts]: Start accepts. Automaton has 28 states. Word has length 103 [2018-04-05 15:51:47,594 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-04-05 15:51:47,596 INFO L225 Difference]: With dead ends: 407 [2018-04-05 15:51:47,596 INFO L226 Difference]: Without dead ends: 257 [2018-04-05 15:51:47,604 INFO L567 BasicCegarLoop]: 0 DeclaredPredicates, 228 GetRequests, 168 SyntacticMatches, 12 SemanticMatches, 48 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 616 ImplicationChecksByTransitivity, 4.8s TimeCoverageRelationStatistics Valid=454, Invalid=1996, Unknown=0, NotChecked=0, Total=2450 [2018-04-05 15:51:47,605 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 257 states. [2018-04-05 15:51:47,663 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 257 to 223. [2018-04-05 15:51:47,663 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 223 states. [2018-04-05 15:51:47,666 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 223 states to 223 states and 237 transitions. [2018-04-05 15:51:47,666 INFO L78 Accepts]: Start accepts. Automaton has 223 states and 237 transitions. Word has length 103 [2018-04-05 15:51:47,667 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-04-05 15:51:47,667 INFO L459 AbstractCegarLoop]: Abstraction has 223 states and 237 transitions. [2018-04-05 15:51:47,667 INFO L460 AbstractCegarLoop]: Interpolant automaton has 28 states. [2018-04-05 15:51:47,667 INFO L276 IsEmpty]: Start isEmpty. Operand 223 states and 237 transitions. [2018-04-05 15:51:47,668 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 114 [2018-04-05 15:51:47,669 INFO L347 BasicCegarLoop]: Found error trace [2018-04-05 15:51:47,676 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] [2018-04-05 15:51:47,676 INFO L408 AbstractCegarLoop]: === Iteration 14 === [mainErr0EnsuresViolationMEMORY_LEAK, __U_MULTI_fjava_BubbleSort_alloca_true_valid_memsafety_true_termination_i__sortErr3RequiresViolation, __U_MULTI_fjava_BubbleSort_alloca_true_valid_memsafety_true_termination_i__sortErr11RequiresViolation, __U_MULTI_fjava_BubbleSort_alloca_true_valid_memsafety_true_termination_i__sortErr5RequiresViolation, __U_MULTI_fjava_BubbleSort_alloca_true_valid_memsafety_true_termination_i__sortErr0RequiresViolation, __U_MULTI_fjava_BubbleSort_alloca_true_valid_memsafety_true_termination_i__sortErr1RequiresViolation, __U_MULTI_fjava_BubbleSort_alloca_true_valid_memsafety_true_termination_i__sortErr6RequiresViolation, __U_MULTI_fjava_BubbleSort_alloca_true_valid_memsafety_true_termination_i__sortErr7RequiresViolation, __U_MULTI_fjava_BubbleSort_alloca_true_valid_memsafety_true_termination_i__sortErr10RequiresViolation, __U_MULTI_fjava_BubbleSort_alloca_true_valid_memsafety_true_termination_i__sortErr4RequiresViolation, __U_MULTI_fjava_BubbleSort_alloca_true_valid_memsafety_true_termination_i__sortErr2RequiresViolation, __U_MULTI_fjava_BubbleSort_alloca_true_valid_memsafety_true_termination_i__sortErr8RequiresViolation, __U_MULTI_fjava_BubbleSort_alloca_true_valid_memsafety_true_termination_i__sortErr9RequiresViolation]=== [2018-04-05 15:51:47,676 INFO L82 PathProgramCache]: Analyzing trace with hash -1441338438, now seen corresponding path program 8 times No working directory specified, using /storage/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 15 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 15 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2018-04-05 15:51:47,695 INFO L68 tionRefinementEngine]: Using refinement strategy FixedRefinementStrategy [2018-04-05 15:51:47,746 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-04-05 15:51:47,751 INFO L270 TraceCheckSpWp]: Computing forward predicates... [2018-04-05 15:51:48,983 INFO L134 CoverageAnalysis]: Checked inductivity of 333 backedges. 105 proven. 228 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-04-05 15:51:48,984 INFO L314 TraceCheckSpWp]: Computing backward predicates... [2018-04-05 15:51:50,015 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 13 treesize of output 11 [2018-04-05 15:51:50,039 INFO L267 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2018-04-05 15:51:50,061 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. [2018-04-05 15:51:50,062 INFO L202 ElimStorePlain]: Needed 2 recursive calls to eliminate 3 variables, input treesize:26, output treesize:13 [2018-04-05 15:51:50,647 INFO L134 CoverageAnalysis]: Checked inductivity of 333 backedges. 75 proven. 258 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-04-05 15:51:50,684 INFO L320 seRefinementStrategy]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2018-04-05 15:51:50,685 INFO L335 seRefinementStrategy]: Number of different interpolants: perfect sequences [] imperfect sequences [19, 19] total 28 [2018-04-05 15:51:50,685 INFO L442 AbstractCegarLoop]: Interpolant automaton has 29 states [2018-04-05 15:51:50,685 INFO L132 InterpolantAutomaton]: Constructing interpolant automaton starting with 29 interpolants. [2018-04-05 15:51:50,686 INFO L133 InterpolantAutomaton]: CoverageRelationStatistics Valid=126, Invalid=686, Unknown=0, NotChecked=0, Total=812 [2018-04-05 15:51:50,686 INFO L87 Difference]: Start difference. First operand 223 states and 237 transitions. Second operand 29 states. [2018-04-05 15:51:54,251 WARN L151 SmtUtils]: Spent 115ms on a formula simplification. DAG size of input: 22 DAG size of output 18 [2018-04-05 15:51:56,154 WARN L151 SmtUtils]: Spent 100ms on a formula simplification. DAG size of input: 26 DAG size of output 24 [2018-04-05 15:51:57,170 WARN L148 SmtUtils]: Spent 211ms on a formula simplification that was a NOOP. DAG size: 25 [2018-04-05 15:51:57,985 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-04-05 15:51:57,985 INFO L93 Difference]: Finished difference Result 224 states and 237 transitions. [2018-04-05 15:51:57,986 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 33 states. [2018-04-05 15:51:57,986 INFO L78 Accepts]: Start accepts. Automaton has 29 states. Word has length 113 [2018-04-05 15:51:57,987 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-04-05 15:51:57,988 INFO L225 Difference]: With dead ends: 224 [2018-04-05 15:51:57,988 INFO L226 Difference]: Without dead ends: 223 [2018-04-05 15:51:57,989 INFO L567 BasicCegarLoop]: 0 DeclaredPredicates, 253 GetRequests, 190 SyntacticMatches, 9 SemanticMatches, 54 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 819 ImplicationChecksByTransitivity, 5.7s TimeCoverageRelationStatistics Valid=581, Invalid=2499, Unknown=0, NotChecked=0, Total=3080 [2018-04-05 15:51:57,993 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 223 states. [2018-04-05 15:51:58,034 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 223 to 223. [2018-04-05 15:51:58,034 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 223 states. [2018-04-05 15:51:58,036 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 223 states to 223 states and 236 transitions. [2018-04-05 15:51:58,036 INFO L78 Accepts]: Start accepts. Automaton has 223 states and 236 transitions. Word has length 113 [2018-04-05 15:51:58,037 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-04-05 15:51:58,037 INFO L459 AbstractCegarLoop]: Abstraction has 223 states and 236 transitions. [2018-04-05 15:51:58,037 INFO L460 AbstractCegarLoop]: Interpolant automaton has 29 states. [2018-04-05 15:51:58,037 INFO L276 IsEmpty]: Start isEmpty. Operand 223 states and 236 transitions. [2018-04-05 15:51:58,040 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 124 [2018-04-05 15:51:58,040 INFO L347 BasicCegarLoop]: Found error trace [2018-04-05 15:51:58,040 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] [2018-04-05 15:51:58,040 INFO L408 AbstractCegarLoop]: === Iteration 15 === [mainErr0EnsuresViolationMEMORY_LEAK, __U_MULTI_fjava_BubbleSort_alloca_true_valid_memsafety_true_termination_i__sortErr3RequiresViolation, __U_MULTI_fjava_BubbleSort_alloca_true_valid_memsafety_true_termination_i__sortErr11RequiresViolation, __U_MULTI_fjava_BubbleSort_alloca_true_valid_memsafety_true_termination_i__sortErr5RequiresViolation, __U_MULTI_fjava_BubbleSort_alloca_true_valid_memsafety_true_termination_i__sortErr0RequiresViolation, __U_MULTI_fjava_BubbleSort_alloca_true_valid_memsafety_true_termination_i__sortErr1RequiresViolation, __U_MULTI_fjava_BubbleSort_alloca_true_valid_memsafety_true_termination_i__sortErr6RequiresViolation, __U_MULTI_fjava_BubbleSort_alloca_true_valid_memsafety_true_termination_i__sortErr7RequiresViolation, __U_MULTI_fjava_BubbleSort_alloca_true_valid_memsafety_true_termination_i__sortErr10RequiresViolation, __U_MULTI_fjava_BubbleSort_alloca_true_valid_memsafety_true_termination_i__sortErr4RequiresViolation, __U_MULTI_fjava_BubbleSort_alloca_true_valid_memsafety_true_termination_i__sortErr2RequiresViolation, __U_MULTI_fjava_BubbleSort_alloca_true_valid_memsafety_true_termination_i__sortErr8RequiresViolation, __U_MULTI_fjava_BubbleSort_alloca_true_valid_memsafety_true_termination_i__sortErr9RequiresViolation]=== [2018-04-05 15:51:58,041 INFO L82 PathProgramCache]: Analyzing trace with hash 1456416358, now seen corresponding path program 9 times No working directory specified, using /storage/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 16 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 16 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2018-04-05 15:51:58,121 INFO L68 tionRefinementEngine]: Using refinement strategy FixedRefinementStrategy [2018-04-05 15:51:58,197 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-04-05 15:51:58,206 INFO L270 TraceCheckSpWp]: Computing forward predicates... [2018-04-05 15:51:59,886 INFO L134 CoverageAnalysis]: Checked inductivity of 419 backedges. 89 proven. 330 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-04-05 15:51:59,886 INFO L314 TraceCheckSpWp]: Computing backward predicates... [2018-04-05 15:52:01,624 INFO L134 CoverageAnalysis]: Checked inductivity of 419 backedges. 89 proven. 330 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-04-05 15:52:01,668 INFO L320 seRefinementStrategy]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2018-04-05 15:52:01,668 INFO L335 seRefinementStrategy]: Number of different interpolants: perfect sequences [] imperfect sequences [25, 25] total 34 [2018-04-05 15:52:01,668 INFO L442 AbstractCegarLoop]: Interpolant automaton has 34 states [2018-04-05 15:52:01,669 INFO L132 InterpolantAutomaton]: Constructing interpolant automaton starting with 34 interpolants. [2018-04-05 15:52:01,669 INFO L133 InterpolantAutomaton]: CoverageRelationStatistics Valid=166, Invalid=956, Unknown=0, NotChecked=0, Total=1122 [2018-04-05 15:52:01,669 INFO L87 Difference]: Start difference. First operand 223 states and 236 transitions. Second operand 34 states. [2018-04-05 15:52:07,193 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-04-05 15:52:07,193 INFO L93 Difference]: Finished difference Result 483 states and 512 transitions. [2018-04-05 15:52:07,193 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 36 states. [2018-04-05 15:52:07,193 INFO L78 Accepts]: Start accepts. Automaton has 34 states. Word has length 123 [2018-04-05 15:52:07,194 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-04-05 15:52:07,195 INFO L225 Difference]: With dead ends: 483 [2018-04-05 15:52:07,195 INFO L226 Difference]: Without dead ends: 295 [2018-04-05 15:52:07,211 INFO L567 BasicCegarLoop]: 0 DeclaredPredicates, 273 GetRequests, 200 SyntacticMatches, 14 SemanticMatches, 59 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 964 ImplicationChecksByTransitivity, 6.1s TimeCoverageRelationStatistics Valid=653, Invalid=3007, Unknown=0, NotChecked=0, Total=3660 [2018-04-05 15:52:07,212 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 295 states. [2018-04-05 15:52:07,246 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 295 to 261. [2018-04-05 15:52:07,246 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 261 states. [2018-04-05 15:52:07,249 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 261 states to 261 states and 277 transitions. [2018-04-05 15:52:07,249 INFO L78 Accepts]: Start accepts. Automaton has 261 states and 277 transitions. Word has length 123 [2018-04-05 15:52:07,250 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-04-05 15:52:07,250 INFO L459 AbstractCegarLoop]: Abstraction has 261 states and 277 transitions. [2018-04-05 15:52:07,250 INFO L460 AbstractCegarLoop]: Interpolant automaton has 34 states. [2018-04-05 15:52:07,250 INFO L276 IsEmpty]: Start isEmpty. Operand 261 states and 277 transitions. [2018-04-05 15:52:07,252 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 134 [2018-04-05 15:52:07,252 INFO L347 BasicCegarLoop]: Found error trace [2018-04-05 15:52:07,253 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] [2018-04-05 15:52:07,267 INFO L408 AbstractCegarLoop]: === Iteration 16 === [mainErr0EnsuresViolationMEMORY_LEAK, __U_MULTI_fjava_BubbleSort_alloca_true_valid_memsafety_true_termination_i__sortErr3RequiresViolation, __U_MULTI_fjava_BubbleSort_alloca_true_valid_memsafety_true_termination_i__sortErr11RequiresViolation, __U_MULTI_fjava_BubbleSort_alloca_true_valid_memsafety_true_termination_i__sortErr5RequiresViolation, __U_MULTI_fjava_BubbleSort_alloca_true_valid_memsafety_true_termination_i__sortErr0RequiresViolation, __U_MULTI_fjava_BubbleSort_alloca_true_valid_memsafety_true_termination_i__sortErr1RequiresViolation, __U_MULTI_fjava_BubbleSort_alloca_true_valid_memsafety_true_termination_i__sortErr6RequiresViolation, __U_MULTI_fjava_BubbleSort_alloca_true_valid_memsafety_true_termination_i__sortErr7RequiresViolation, __U_MULTI_fjava_BubbleSort_alloca_true_valid_memsafety_true_termination_i__sortErr10RequiresViolation, __U_MULTI_fjava_BubbleSort_alloca_true_valid_memsafety_true_termination_i__sortErr4RequiresViolation, __U_MULTI_fjava_BubbleSort_alloca_true_valid_memsafety_true_termination_i__sortErr2RequiresViolation, __U_MULTI_fjava_BubbleSort_alloca_true_valid_memsafety_true_termination_i__sortErr8RequiresViolation, __U_MULTI_fjava_BubbleSort_alloca_true_valid_memsafety_true_termination_i__sortErr9RequiresViolation]=== [2018-04-05 15:52:07,267 INFO L82 PathProgramCache]: Analyzing trace with hash 1148735378, now seen corresponding path program 10 times No working directory specified, using /storage/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 17 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 17 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2018-04-05 15:52:07,313 INFO L68 tionRefinementEngine]: Using refinement strategy FixedRefinementStrategy [2018-04-05 15:52:07,369 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-04-05 15:52:07,379 INFO L270 TraceCheckSpWp]: Computing forward predicates... [2018-04-05 15:52:09,899 INFO L134 CoverageAnalysis]: Checked inductivity of 515 backedges. 157 proven. 358 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-04-05 15:52:09,899 INFO L314 TraceCheckSpWp]: Computing backward predicates... [2018-04-05 15:52:11,235 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 13 treesize of output 11 [2018-04-05 15:52:11,251 INFO L267 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2018-04-05 15:52:11,273 INFO L267 ElimStorePlain]: Start of recursive call 1: 2 dim-0 vars, 1 dim-1 vars, End of recursive call: 1 dim-0 vars, and 1 xjuncts. [2018-04-05 15:52:11,274 INFO L202 ElimStorePlain]: Needed 2 recursive calls to eliminate 3 variables, input treesize:26, output treesize:13 [2018-04-05 15:52:11,809 INFO L134 CoverageAnalysis]: Checked inductivity of 515 backedges. 118 proven. 397 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-04-05 15:52:11,876 INFO L320 seRefinementStrategy]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2018-04-05 15:52:11,876 INFO L335 seRefinementStrategy]: Number of different interpolants: perfect sequences [] imperfect sequences [23, 23] total 34 [2018-04-05 15:52:11,877 INFO L442 AbstractCegarLoop]: Interpolant automaton has 35 states [2018-04-05 15:52:11,877 INFO L132 InterpolantAutomaton]: Constructing interpolant automaton starting with 35 interpolants. [2018-04-05 15:52:11,878 INFO L133 InterpolantAutomaton]: CoverageRelationStatistics Valid=174, Invalid=1016, Unknown=0, NotChecked=0, Total=1190 [2018-04-05 15:52:11,878 INFO L87 Difference]: Start difference. First operand 261 states and 277 transitions. Second operand 35 states. [2018-04-05 15:52:14,761 WARN L151 SmtUtils]: Spent 109ms on a formula simplification. DAG size of input: 20 DAG size of output 15 [2018-04-05 15:52:16,510 WARN L151 SmtUtils]: Spent 147ms on a formula simplification. DAG size of input: 21 DAG size of output 18 [2018-04-05 15:52:17,352 WARN L151 SmtUtils]: Spent 114ms on a formula simplification. DAG size of input: 26 DAG size of output 25 [2018-04-05 15:52:17,597 WARN L151 SmtUtils]: Spent 114ms on a formula simplification. DAG size of input: 23 DAG size of output 22 [2018-04-05 15:52:18,151 WARN L151 SmtUtils]: Spent 154ms on a formula simplification. DAG size of input: 26 DAG size of output 25 [2018-04-05 15:52:18,674 WARN L151 SmtUtils]: Spent 132ms on a formula simplification. DAG size of input: 23 DAG size of output 22 [2018-04-05 15:52:19,382 WARN L151 SmtUtils]: Spent 161ms on a formula simplification. DAG size of input: 26 DAG size of output 25 [2018-04-05 15:52:19,591 WARN L151 SmtUtils]: Spent 103ms on a formula simplification. DAG size of input: 27 DAG size of output 26 [2018-04-05 15:52:20,202 WARN L151 SmtUtils]: Spent 103ms on a formula simplification. DAG size of input: 26 DAG size of output 25 [2018-04-05 15:52:20,521 WARN L148 SmtUtils]: Spent 128ms on a formula simplification that was a NOOP. DAG size: 25 [2018-04-05 15:52:21,483 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-04-05 15:52:21,506 INFO L93 Difference]: Finished difference Result 262 states and 277 transitions. [2018-04-05 15:52:21,507 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 40 states. [2018-04-05 15:52:21,507 INFO L78 Accepts]: Start accepts. Automaton has 35 states. Word has length 133 [2018-04-05 15:52:21,507 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-04-05 15:52:21,508 INFO L225 Difference]: With dead ends: 262 [2018-04-05 15:52:21,509 INFO L226 Difference]: Without dead ends: 261 [2018-04-05 15:52:21,510 INFO L567 BasicCegarLoop]: 0 DeclaredPredicates, 299 GetRequests, 222 SyntacticMatches, 11 SemanticMatches, 66 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1311 ImplicationChecksByTransitivity, 8.7s TimeCoverageRelationStatistics Valid=816, Invalid=3740, Unknown=0, NotChecked=0, Total=4556 [2018-04-05 15:52:21,510 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 261 states. [2018-04-05 15:52:21,550 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 261 to 261. [2018-04-05 15:52:21,550 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 261 states. [2018-04-05 15:52:21,552 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 261 states to 261 states and 276 transitions. [2018-04-05 15:52:21,552 INFO L78 Accepts]: Start accepts. Automaton has 261 states and 276 transitions. Word has length 133 [2018-04-05 15:52:21,553 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-04-05 15:52:21,553 INFO L459 AbstractCegarLoop]: Abstraction has 261 states and 276 transitions. [2018-04-05 15:52:21,553 INFO L460 AbstractCegarLoop]: Interpolant automaton has 35 states. [2018-04-05 15:52:21,553 INFO L276 IsEmpty]: Start isEmpty. Operand 261 states and 276 transitions. [2018-04-05 15:52:21,554 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 144 [2018-04-05 15:52:21,554 INFO L347 BasicCegarLoop]: Found error trace [2018-04-05 15:52:21,554 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] [2018-04-05 15:52:21,554 INFO L408 AbstractCegarLoop]: === Iteration 17 === [mainErr0EnsuresViolationMEMORY_LEAK, __U_MULTI_fjava_BubbleSort_alloca_true_valid_memsafety_true_termination_i__sortErr3RequiresViolation, __U_MULTI_fjava_BubbleSort_alloca_true_valid_memsafety_true_termination_i__sortErr11RequiresViolation, __U_MULTI_fjava_BubbleSort_alloca_true_valid_memsafety_true_termination_i__sortErr5RequiresViolation, __U_MULTI_fjava_BubbleSort_alloca_true_valid_memsafety_true_termination_i__sortErr0RequiresViolation, __U_MULTI_fjava_BubbleSort_alloca_true_valid_memsafety_true_termination_i__sortErr1RequiresViolation, __U_MULTI_fjava_BubbleSort_alloca_true_valid_memsafety_true_termination_i__sortErr6RequiresViolation, __U_MULTI_fjava_BubbleSort_alloca_true_valid_memsafety_true_termination_i__sortErr7RequiresViolation, __U_MULTI_fjava_BubbleSort_alloca_true_valid_memsafety_true_termination_i__sortErr10RequiresViolation, __U_MULTI_fjava_BubbleSort_alloca_true_valid_memsafety_true_termination_i__sortErr4RequiresViolation, __U_MULTI_fjava_BubbleSort_alloca_true_valid_memsafety_true_termination_i__sortErr2RequiresViolation, __U_MULTI_fjava_BubbleSort_alloca_true_valid_memsafety_true_termination_i__sortErr8RequiresViolation, __U_MULTI_fjava_BubbleSort_alloca_true_valid_memsafety_true_termination_i__sortErr9RequiresViolation]=== [2018-04-05 15:52:21,555 INFO L82 PathProgramCache]: Analyzing trace with hash 1040686142, now seen corresponding path program 11 times No working directory specified, using /storage/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 18 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 18 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2018-04-05 15:52:21,584 INFO L68 tionRefinementEngine]: Using refinement strategy FixedRefinementStrategy [2018-04-05 15:52:21,673 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-04-05 15:52:21,683 INFO L270 TraceCheckSpWp]: Computing forward predicates... [2018-04-05 15:52:23,750 INFO L134 CoverageAnalysis]: Checked inductivity of 621 backedges. 135 proven. 486 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-04-05 15:52:23,751 INFO L314 TraceCheckSpWp]: Computing backward predicates... [2018-04-05 15:52:26,061 INFO L134 CoverageAnalysis]: Checked inductivity of 621 backedges. 135 proven. 486 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-04-05 15:52:26,126 INFO L320 seRefinementStrategy]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2018-04-05 15:52:26,126 INFO L335 seRefinementStrategy]: Number of different interpolants: perfect sequences [] imperfect sequences [29, 29] total 40 [2018-04-05 15:52:26,127 INFO L442 AbstractCegarLoop]: Interpolant automaton has 40 states [2018-04-05 15:52:26,127 INFO L132 InterpolantAutomaton]: Constructing interpolant automaton starting with 40 interpolants. [2018-04-05 15:52:26,127 INFO L133 InterpolantAutomaton]: CoverageRelationStatistics Valid=222, Invalid=1338, Unknown=0, NotChecked=0, Total=1560 [2018-04-05 15:52:26,128 INFO L87 Difference]: Start difference. First operand 261 states and 276 transitions. Second operand 40 states. [2018-04-05 15:52:32,435 WARN L148 SmtUtils]: Spent 113ms on a formula simplification that was a NOOP. DAG size: 14 [2018-04-05 15:52:33,930 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-04-05 15:52:33,931 INFO L93 Difference]: Finished difference Result 559 states and 592 transitions. [2018-04-05 15:52:33,931 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 42 states. [2018-04-05 15:52:33,931 INFO L78 Accepts]: Start accepts. Automaton has 40 states. Word has length 143 [2018-04-05 15:52:33,932 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-04-05 15:52:33,934 INFO L225 Difference]: With dead ends: 559 [2018-04-05 15:52:33,934 INFO L226 Difference]: Without dead ends: 333 [2018-04-05 15:52:33,943 INFO L567 BasicCegarLoop]: 0 DeclaredPredicates, 318 GetRequests, 232 SyntacticMatches, 16 SemanticMatches, 70 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1390 ImplicationChecksByTransitivity, 8.0s TimeCoverageRelationStatistics Valid=887, Invalid=4225, Unknown=0, NotChecked=0, Total=5112 [2018-04-05 15:52:33,943 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 333 states. [2018-04-05 15:52:33,997 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 333 to 299. [2018-04-05 15:52:33,997 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 299 states. [2018-04-05 15:52:33,999 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 299 states to 299 states and 317 transitions. [2018-04-05 15:52:34,000 INFO L78 Accepts]: Start accepts. Automaton has 299 states and 317 transitions. Word has length 143 [2018-04-05 15:52:34,000 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-04-05 15:52:34,000 INFO L459 AbstractCegarLoop]: Abstraction has 299 states and 317 transitions. [2018-04-05 15:52:34,000 INFO L460 AbstractCegarLoop]: Interpolant automaton has 40 states. [2018-04-05 15:52:34,000 INFO L276 IsEmpty]: Start isEmpty. Operand 299 states and 317 transitions. [2018-04-05 15:52:34,001 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 154 [2018-04-05 15:52:34,002 INFO L347 BasicCegarLoop]: Found error trace [2018-04-05 15:52:34,002 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] [2018-04-05 15:52:34,002 INFO L408 AbstractCegarLoop]: === Iteration 18 === [mainErr0EnsuresViolationMEMORY_LEAK, __U_MULTI_fjava_BubbleSort_alloca_true_valid_memsafety_true_termination_i__sortErr3RequiresViolation, __U_MULTI_fjava_BubbleSort_alloca_true_valid_memsafety_true_termination_i__sortErr11RequiresViolation, __U_MULTI_fjava_BubbleSort_alloca_true_valid_memsafety_true_termination_i__sortErr5RequiresViolation, __U_MULTI_fjava_BubbleSort_alloca_true_valid_memsafety_true_termination_i__sortErr0RequiresViolation, __U_MULTI_fjava_BubbleSort_alloca_true_valid_memsafety_true_termination_i__sortErr1RequiresViolation, __U_MULTI_fjava_BubbleSort_alloca_true_valid_memsafety_true_termination_i__sortErr6RequiresViolation, __U_MULTI_fjava_BubbleSort_alloca_true_valid_memsafety_true_termination_i__sortErr7RequiresViolation, __U_MULTI_fjava_BubbleSort_alloca_true_valid_memsafety_true_termination_i__sortErr10RequiresViolation, __U_MULTI_fjava_BubbleSort_alloca_true_valid_memsafety_true_termination_i__sortErr4RequiresViolation, __U_MULTI_fjava_BubbleSort_alloca_true_valid_memsafety_true_termination_i__sortErr2RequiresViolation, __U_MULTI_fjava_BubbleSort_alloca_true_valid_memsafety_true_termination_i__sortErr8RequiresViolation, __U_MULTI_fjava_BubbleSort_alloca_true_valid_memsafety_true_termination_i__sortErr9RequiresViolation]=== [2018-04-05 15:52:34,002 INFO L82 PathProgramCache]: Analyzing trace with hash 1724675946, now seen corresponding path program 12 times No working directory specified, using /storage/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 19 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 19 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2018-04-05 15:52:34,025 INFO L68 tionRefinementEngine]: Using refinement strategy FixedRefinementStrategy [2018-04-05 15:52:34,084 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-04-05 15:52:34,090 INFO L270 TraceCheckSpWp]: Computing forward predicates... [2018-04-05 15:52:36,402 WARN L148 SmtUtils]: Spent 130ms on a formula simplification that was a NOOP. DAG size: 21 [2018-04-05 15:52:36,497 INFO L134 CoverageAnalysis]: Checked inductivity of 737 backedges. 219 proven. 518 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-04-05 15:52:36,498 INFO L314 TraceCheckSpWp]: Computing backward predicates... [2018-04-05 15:52:38,983 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 13 treesize of output 11 [2018-04-05 15:52:38,984 INFO L267 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2018-04-05 15:52:38,997 INFO L267 ElimStorePlain]: Start of recursive call 1: 2 dim-0 vars, 1 dim-1 vars, End of recursive call: 1 dim-0 vars, and 1 xjuncts. [2018-04-05 15:52:38,998 INFO L202 ElimStorePlain]: Needed 2 recursive calls to eliminate 3 variables, input treesize:26, output treesize:13 [2018-04-05 15:52:39,719 INFO L134 CoverageAnalysis]: Checked inductivity of 737 backedges. 171 proven. 566 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-04-05 15:52:39,766 INFO L320 seRefinementStrategy]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2018-04-05 15:52:39,767 INFO L335 seRefinementStrategy]: Number of different interpolants: perfect sequences [] imperfect sequences [27, 27] total 40 [2018-04-05 15:52:39,767 INFO L442 AbstractCegarLoop]: Interpolant automaton has 41 states [2018-04-05 15:52:39,768 INFO L132 InterpolantAutomaton]: Constructing interpolant automaton starting with 41 interpolants. [2018-04-05 15:52:39,768 INFO L133 InterpolantAutomaton]: CoverageRelationStatistics Valid=230, Invalid=1410, Unknown=0, NotChecked=0, Total=1640 [2018-04-05 15:52:39,768 INFO L87 Difference]: Start difference. First operand 299 states and 317 transitions. Second operand 41 states. [2018-04-05 15:52:44,560 WARN L151 SmtUtils]: Spent 138ms on a formula simplification. DAG size of input: 26 DAG size of output 24 [2018-04-05 15:52:44,756 WARN L151 SmtUtils]: Spent 105ms on a formula simplification. DAG size of input: 27 DAG size of output 25 [2018-04-05 15:52:48,719 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-04-05 15:52:48,751 INFO L93 Difference]: Finished difference Result 300 states and 317 transitions. [2018-04-05 15:52:48,753 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 47 states. [2018-04-05 15:52:48,753 INFO L78 Accepts]: Start accepts. Automaton has 41 states. Word has length 153 [2018-04-05 15:52:48,754 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-04-05 15:52:48,755 INFO L225 Difference]: With dead ends: 300 [2018-04-05 15:52:48,755 INFO L226 Difference]: Without dead ends: 299 [2018-04-05 15:52:48,765 INFO L567 BasicCegarLoop]: 0 DeclaredPredicates, 345 GetRequests, 254 SyntacticMatches, 13 SemanticMatches, 78 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1918 ImplicationChecksByTransitivity, 9.5s TimeCoverageRelationStatistics Valid=1091, Invalid=5229, Unknown=0, NotChecked=0, Total=6320 [2018-04-05 15:52:48,765 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 299 states. [2018-04-05 15:52:48,850 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 299 to 299. [2018-04-05 15:52:48,850 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 299 states. [2018-04-05 15:52:48,851 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 299 states to 299 states and 316 transitions. [2018-04-05 15:52:48,856 INFO L78 Accepts]: Start accepts. Automaton has 299 states and 316 transitions. Word has length 153 [2018-04-05 15:52:48,856 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-04-05 15:52:48,856 INFO L459 AbstractCegarLoop]: Abstraction has 299 states and 316 transitions. [2018-04-05 15:52:48,856 INFO L460 AbstractCegarLoop]: Interpolant automaton has 41 states. [2018-04-05 15:52:48,857 INFO L276 IsEmpty]: Start isEmpty. Operand 299 states and 316 transitions. [2018-04-05 15:52:48,858 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 164 [2018-04-05 15:52:48,858 INFO L347 BasicCegarLoop]: Found error trace [2018-04-05 15:52:48,858 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] [2018-04-05 15:52:48,858 INFO L408 AbstractCegarLoop]: === Iteration 19 === [mainErr0EnsuresViolationMEMORY_LEAK, __U_MULTI_fjava_BubbleSort_alloca_true_valid_memsafety_true_termination_i__sortErr3RequiresViolation, __U_MULTI_fjava_BubbleSort_alloca_true_valid_memsafety_true_termination_i__sortErr11RequiresViolation, __U_MULTI_fjava_BubbleSort_alloca_true_valid_memsafety_true_termination_i__sortErr5RequiresViolation, __U_MULTI_fjava_BubbleSort_alloca_true_valid_memsafety_true_termination_i__sortErr0RequiresViolation, __U_MULTI_fjava_BubbleSort_alloca_true_valid_memsafety_true_termination_i__sortErr1RequiresViolation, __U_MULTI_fjava_BubbleSort_alloca_true_valid_memsafety_true_termination_i__sortErr6RequiresViolation, __U_MULTI_fjava_BubbleSort_alloca_true_valid_memsafety_true_termination_i__sortErr7RequiresViolation, __U_MULTI_fjava_BubbleSort_alloca_true_valid_memsafety_true_termination_i__sortErr10RequiresViolation, __U_MULTI_fjava_BubbleSort_alloca_true_valid_memsafety_true_termination_i__sortErr4RequiresViolation, __U_MULTI_fjava_BubbleSort_alloca_true_valid_memsafety_true_termination_i__sortErr2RequiresViolation, __U_MULTI_fjava_BubbleSort_alloca_true_valid_memsafety_true_termination_i__sortErr8RequiresViolation, __U_MULTI_fjava_BubbleSort_alloca_true_valid_memsafety_true_termination_i__sortErr9RequiresViolation]=== [2018-04-05 15:52:48,858 INFO L82 PathProgramCache]: Analyzing trace with hash -7481834, now seen corresponding path program 13 times No working directory specified, using /storage/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 20 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 20 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2018-04-05 15:52:48,889 INFO L68 tionRefinementEngine]: Using refinement strategy FixedRefinementStrategy [2018-04-05 15:52:48,980 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-04-05 15:52:48,985 INFO L270 TraceCheckSpWp]: Computing forward predicates... [2018-04-05 15:52:52,160 WARN L148 SmtUtils]: Spent 100ms on a formula simplification that was a NOOP. DAG size: 9 [2018-04-05 15:52:53,496 INFO L134 CoverageAnalysis]: Checked inductivity of 863 backedges. 191 proven. 672 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-04-05 15:52:53,496 INFO L314 TraceCheckSpWp]: Computing backward predicates... [2018-04-05 15:52:56,417 INFO L134 CoverageAnalysis]: Checked inductivity of 863 backedges. 191 proven. 672 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-04-05 15:52:56,476 INFO L320 seRefinementStrategy]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2018-04-05 15:52:56,476 INFO L335 seRefinementStrategy]: Number of different interpolants: perfect sequences [] imperfect sequences [33, 33] total 46 [2018-04-05 15:52:56,478 INFO L442 AbstractCegarLoop]: Interpolant automaton has 46 states [2018-04-05 15:52:56,478 INFO L132 InterpolantAutomaton]: Constructing interpolant automaton starting with 46 interpolants. [2018-04-05 15:52:56,507 INFO L133 InterpolantAutomaton]: CoverageRelationStatistics Valid=286, Invalid=1784, Unknown=0, NotChecked=0, Total=2070 [2018-04-05 15:52:56,507 INFO L87 Difference]: Start difference. First operand 299 states and 316 transitions. Second operand 46 states. [2018-04-05 15:53:06,134 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-04-05 15:53:06,134 INFO L93 Difference]: Finished difference Result 635 states and 672 transitions. [2018-04-05 15:53:06,134 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 48 states. [2018-04-05 15:53:06,134 INFO L78 Accepts]: Start accepts. Automaton has 46 states. Word has length 163 [2018-04-05 15:53:06,135 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-04-05 15:53:06,142 INFO L225 Difference]: With dead ends: 635 [2018-04-05 15:53:06,142 INFO L226 Difference]: Without dead ends: 371 [2018-04-05 15:53:06,144 INFO L567 BasicCegarLoop]: 0 DeclaredPredicates, 363 GetRequests, 264 SyntacticMatches, 18 SemanticMatches, 81 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1894 ImplicationChecksByTransitivity, 12.8s TimeCoverageRelationStatistics Valid=1156, Invalid=5650, Unknown=0, NotChecked=0, Total=6806 [2018-04-05 15:53:06,150 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 371 states. [2018-04-05 15:53:06,255 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 371 to 337. [2018-04-05 15:53:06,255 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 337 states. [2018-04-05 15:53:06,256 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 337 states to 337 states and 357 transitions. [2018-04-05 15:53:06,257 INFO L78 Accepts]: Start accepts. Automaton has 337 states and 357 transitions. Word has length 163 [2018-04-05 15:53:06,268 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-04-05 15:53:06,268 INFO L459 AbstractCegarLoop]: Abstraction has 337 states and 357 transitions. [2018-04-05 15:53:06,268 INFO L460 AbstractCegarLoop]: Interpolant automaton has 46 states. [2018-04-05 15:53:06,268 INFO L276 IsEmpty]: Start isEmpty. Operand 337 states and 357 transitions. [2018-04-05 15:53:06,269 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 174 [2018-04-05 15:53:06,270 INFO L347 BasicCegarLoop]: Found error trace [2018-04-05 15:53:06,270 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] [2018-04-05 15:53:06,270 INFO L408 AbstractCegarLoop]: === Iteration 20 === [mainErr0EnsuresViolationMEMORY_LEAK, __U_MULTI_fjava_BubbleSort_alloca_true_valid_memsafety_true_termination_i__sortErr3RequiresViolation, __U_MULTI_fjava_BubbleSort_alloca_true_valid_memsafety_true_termination_i__sortErr11RequiresViolation, __U_MULTI_fjava_BubbleSort_alloca_true_valid_memsafety_true_termination_i__sortErr5RequiresViolation, __U_MULTI_fjava_BubbleSort_alloca_true_valid_memsafety_true_termination_i__sortErr0RequiresViolation, __U_MULTI_fjava_BubbleSort_alloca_true_valid_memsafety_true_termination_i__sortErr1RequiresViolation, __U_MULTI_fjava_BubbleSort_alloca_true_valid_memsafety_true_termination_i__sortErr6RequiresViolation, __U_MULTI_fjava_BubbleSort_alloca_true_valid_memsafety_true_termination_i__sortErr7RequiresViolation, __U_MULTI_fjava_BubbleSort_alloca_true_valid_memsafety_true_termination_i__sortErr10RequiresViolation, __U_MULTI_fjava_BubbleSort_alloca_true_valid_memsafety_true_termination_i__sortErr4RequiresViolation, __U_MULTI_fjava_BubbleSort_alloca_true_valid_memsafety_true_termination_i__sortErr2RequiresViolation, __U_MULTI_fjava_BubbleSort_alloca_true_valid_memsafety_true_termination_i__sortErr8RequiresViolation, __U_MULTI_fjava_BubbleSort_alloca_true_valid_memsafety_true_termination_i__sortErr9RequiresViolation]=== [2018-04-05 15:53:06,270 INFO L82 PathProgramCache]: Analyzing trace with hash 581002050, now seen corresponding path program 14 times No working directory specified, using /storage/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 21 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 21 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2018-04-05 15:53:06,290 INFO L68 tionRefinementEngine]: Using refinement strategy FixedRefinementStrategy [2018-04-05 15:53:06,418 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-04-05 15:53:06,425 INFO L270 TraceCheckSpWp]: Computing forward predicates... [2018-04-05 15:53:09,703 INFO L134 CoverageAnalysis]: Checked inductivity of 999 backedges. 291 proven. 708 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-04-05 15:53:09,703 INFO L314 TraceCheckSpWp]: Computing backward predicates... [2018-04-05 15:53:11,676 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 13 treesize of output 11 [2018-04-05 15:53:11,676 INFO L267 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2018-04-05 15:53:11,693 INFO L267 ElimStorePlain]: Start of recursive call 1: 2 dim-0 vars, 1 dim-1 vars, End of recursive call: 1 dim-0 vars, and 1 xjuncts. [2018-04-05 15:53:11,694 INFO L202 ElimStorePlain]: Needed 2 recursive calls to eliminate 3 variables, input treesize:26, output treesize:13 [2018-04-05 15:53:12,544 INFO L134 CoverageAnalysis]: Checked inductivity of 999 backedges. 234 proven. 765 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-04-05 15:53:12,575 INFO L320 seRefinementStrategy]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2018-04-05 15:53:12,576 INFO L335 seRefinementStrategy]: Number of different interpolants: perfect sequences [] imperfect sequences [31, 31] total 46 [2018-04-05 15:53:12,576 INFO L442 AbstractCegarLoop]: Interpolant automaton has 47 states [2018-04-05 15:53:12,576 INFO L132 InterpolantAutomaton]: Constructing interpolant automaton starting with 47 interpolants. [2018-04-05 15:53:12,577 INFO L133 InterpolantAutomaton]: CoverageRelationStatistics Valid=294, Invalid=1868, Unknown=0, NotChecked=0, Total=2162 [2018-04-05 15:53:12,577 INFO L87 Difference]: Start difference. First operand 337 states and 357 transitions. Second operand 47 states. [2018-04-05 15:53:19,333 WARN L151 SmtUtils]: Spent 168ms on a formula simplification. DAG size of input: 23 DAG size of output 21 [2018-04-05 15:53:19,830 WARN L151 SmtUtils]: Spent 252ms on a formula simplification. DAG size of input: 26 DAG size of output 24 [2018-04-05 15:53:20,076 WARN L151 SmtUtils]: Spent 171ms on a formula simplification. DAG size of input: 27 DAG size of output 25 [2018-04-05 15:53:20,353 WARN L151 SmtUtils]: Spent 148ms on a formula simplification. DAG size of input: 24 DAG size of output 22 [2018-04-05 15:53:21,053 WARN L151 SmtUtils]: Spent 188ms on a formula simplification. DAG size of input: 27 DAG size of output 25 [2018-04-05 15:53:21,376 WARN L151 SmtUtils]: Spent 139ms on a formula simplification. DAG size of input: 28 DAG size of output 26 [2018-04-05 15:53:22,100 WARN L151 SmtUtils]: Spent 103ms on a formula simplification. DAG size of input: 27 DAG size of output 25 [2018-04-05 15:53:22,324 WARN L151 SmtUtils]: Spent 119ms on a formula simplification. DAG size of input: 28 DAG size of output 26 [2018-04-05 15:53:24,544 WARN L151 SmtUtils]: Spent 143ms on a formula simplification. DAG size of input: 27 DAG size of output 25 [2018-04-05 15:53:24,834 WARN L151 SmtUtils]: Spent 138ms on a formula simplification. DAG size of input: 24 DAG size of output 22 [2018-04-05 15:53:25,780 WARN L151 SmtUtils]: Spent 160ms on a formula simplification. DAG size of input: 27 DAG size of output 25 [2018-04-05 15:53:26,235 WARN L148 SmtUtils]: Spent 112ms on a formula simplification that was a NOOP. DAG size: 26 [2018-04-05 15:53:27,387 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-04-05 15:53:27,387 INFO L93 Difference]: Finished difference Result 338 states and 357 transitions. [2018-04-05 15:53:27,388 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 54 states. [2018-04-05 15:53:27,388 INFO L78 Accepts]: Start accepts. Automaton has 47 states. Word has length 173 [2018-04-05 15:53:27,389 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-04-05 15:53:27,390 INFO L225 Difference]: With dead ends: 338 [2018-04-05 15:53:27,390 INFO L226 Difference]: Without dead ends: 337 [2018-04-05 15:53:27,402 INFO L567 BasicCegarLoop]: 0 DeclaredPredicates, 391 GetRequests, 286 SyntacticMatches, 15 SemanticMatches, 90 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2640 ImplicationChecksByTransitivity, 12.6s TimeCoverageRelationStatistics Valid=1406, Invalid=6966, Unknown=0, NotChecked=0, Total=8372 [2018-04-05 15:53:27,402 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 337 states. [2018-04-05 15:53:27,456 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 337 to 337. [2018-04-05 15:53:27,456 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 337 states. [2018-04-05 15:53:27,458 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 337 states to 337 states and 356 transitions. [2018-04-05 15:53:27,458 INFO L78 Accepts]: Start accepts. Automaton has 337 states and 356 transitions. Word has length 173 [2018-04-05 15:53:27,458 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-04-05 15:53:27,459 INFO L459 AbstractCegarLoop]: Abstraction has 337 states and 356 transitions. [2018-04-05 15:53:27,459 INFO L460 AbstractCegarLoop]: Interpolant automaton has 47 states. [2018-04-05 15:53:27,459 INFO L276 IsEmpty]: Start isEmpty. Operand 337 states and 356 transitions. [2018-04-05 15:53:27,460 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 184 [2018-04-05 15:53:27,460 INFO L347 BasicCegarLoop]: Found error trace [2018-04-05 15:53:27,461 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] [2018-04-05 15:53:27,461 INFO L408 AbstractCegarLoop]: === Iteration 21 === [mainErr0EnsuresViolationMEMORY_LEAK, __U_MULTI_fjava_BubbleSort_alloca_true_valid_memsafety_true_termination_i__sortErr3RequiresViolation, __U_MULTI_fjava_BubbleSort_alloca_true_valid_memsafety_true_termination_i__sortErr11RequiresViolation, __U_MULTI_fjava_BubbleSort_alloca_true_valid_memsafety_true_termination_i__sortErr5RequiresViolation, __U_MULTI_fjava_BubbleSort_alloca_true_valid_memsafety_true_termination_i__sortErr0RequiresViolation, __U_MULTI_fjava_BubbleSort_alloca_true_valid_memsafety_true_termination_i__sortErr1RequiresViolation, __U_MULTI_fjava_BubbleSort_alloca_true_valid_memsafety_true_termination_i__sortErr6RequiresViolation, __U_MULTI_fjava_BubbleSort_alloca_true_valid_memsafety_true_termination_i__sortErr7RequiresViolation, __U_MULTI_fjava_BubbleSort_alloca_true_valid_memsafety_true_termination_i__sortErr10RequiresViolation, __U_MULTI_fjava_BubbleSort_alloca_true_valid_memsafety_true_termination_i__sortErr4RequiresViolation, __U_MULTI_fjava_BubbleSort_alloca_true_valid_memsafety_true_termination_i__sortErr2RequiresViolation, __U_MULTI_fjava_BubbleSort_alloca_true_valid_memsafety_true_termination_i__sortErr8RequiresViolation, __U_MULTI_fjava_BubbleSort_alloca_true_valid_memsafety_true_termination_i__sortErr9RequiresViolation]=== [2018-04-05 15:53:27,461 INFO L82 PathProgramCache]: Analyzing trace with hash -1821387794, now seen corresponding path program 15 times No working directory specified, using /storage/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 22 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 22 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2018-04-05 15:53:27,475 INFO L68 tionRefinementEngine]: Using refinement strategy FixedRefinementStrategy [2018-04-05 15:53:27,548 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-04-05 15:53:27,558 INFO L270 TraceCheckSpWp]: Computing forward predicates... [2018-04-05 15:53:29,639 WARN L148 SmtUtils]: Spent 127ms on a formula simplification that was a NOOP. DAG size: 9 [2018-04-05 15:53:32,818 INFO L134 CoverageAnalysis]: Checked inductivity of 1145 backedges. 257 proven. 888 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-04-05 15:53:32,818 INFO L314 TraceCheckSpWp]: Computing backward predicates... [2018-04-05 15:53:36,399 INFO L134 CoverageAnalysis]: Checked inductivity of 1145 backedges. 257 proven. 888 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-04-05 15:53:36,446 INFO L320 seRefinementStrategy]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2018-04-05 15:53:36,446 INFO L335 seRefinementStrategy]: Number of different interpolants: perfect sequences [] imperfect sequences [37, 37] total 52 [2018-04-05 15:53:36,446 INFO L442 AbstractCegarLoop]: Interpolant automaton has 52 states [2018-04-05 15:53:36,447 INFO L132 InterpolantAutomaton]: Constructing interpolant automaton starting with 52 interpolants. [2018-04-05 15:53:36,447 INFO L133 InterpolantAutomaton]: CoverageRelationStatistics Valid=358, Invalid=2294, Unknown=0, NotChecked=0, Total=2652 [2018-04-05 15:53:36,447 INFO L87 Difference]: Start difference. First operand 337 states and 356 transitions. Second operand 52 states. [2018-04-05 15:53:47,094 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-04-05 15:53:47,094 INFO L93 Difference]: Finished difference Result 711 states and 752 transitions. [2018-04-05 15:53:47,102 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 54 states. [2018-04-05 15:53:47,102 INFO L78 Accepts]: Start accepts. Automaton has 52 states. Word has length 183 [2018-04-05 15:53:47,103 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-04-05 15:53:47,105 INFO L225 Difference]: With dead ends: 711 [2018-04-05 15:53:47,105 INFO L226 Difference]: Without dead ends: 409 [2018-04-05 15:53:47,125 INFO L567 BasicCegarLoop]: 0 DeclaredPredicates, 408 GetRequests, 296 SyntacticMatches, 20 SemanticMatches, 92 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2476 ImplicationChecksByTransitivity, 14.1s TimeCoverageRelationStatistics Valid=1460, Invalid=7282, Unknown=0, NotChecked=0, Total=8742 [2018-04-05 15:53:47,126 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 409 states. [2018-04-05 15:53:47,194 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 409 to 375. [2018-04-05 15:53:47,194 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 375 states. [2018-04-05 15:53:47,196 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 375 states to 375 states and 397 transitions. [2018-04-05 15:53:47,196 INFO L78 Accepts]: Start accepts. Automaton has 375 states and 397 transitions. Word has length 183 [2018-04-05 15:53:47,196 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-04-05 15:53:47,197 INFO L459 AbstractCegarLoop]: Abstraction has 375 states and 397 transitions. [2018-04-05 15:53:47,197 INFO L460 AbstractCegarLoop]: Interpolant automaton has 52 states. [2018-04-05 15:53:47,197 INFO L276 IsEmpty]: Start isEmpty. Operand 375 states and 397 transitions. [2018-04-05 15:53:47,211 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 194 [2018-04-05 15:53:47,211 INFO L347 BasicCegarLoop]: Found error trace [2018-04-05 15:53:47,211 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] [2018-04-05 15:53:47,211 INFO L408 AbstractCegarLoop]: === Iteration 22 === [mainErr0EnsuresViolationMEMORY_LEAK, __U_MULTI_fjava_BubbleSort_alloca_true_valid_memsafety_true_termination_i__sortErr3RequiresViolation, __U_MULTI_fjava_BubbleSort_alloca_true_valid_memsafety_true_termination_i__sortErr11RequiresViolation, __U_MULTI_fjava_BubbleSort_alloca_true_valid_memsafety_true_termination_i__sortErr5RequiresViolation, __U_MULTI_fjava_BubbleSort_alloca_true_valid_memsafety_true_termination_i__sortErr0RequiresViolation, __U_MULTI_fjava_BubbleSort_alloca_true_valid_memsafety_true_termination_i__sortErr1RequiresViolation, __U_MULTI_fjava_BubbleSort_alloca_true_valid_memsafety_true_termination_i__sortErr6RequiresViolation, __U_MULTI_fjava_BubbleSort_alloca_true_valid_memsafety_true_termination_i__sortErr7RequiresViolation, __U_MULTI_fjava_BubbleSort_alloca_true_valid_memsafety_true_termination_i__sortErr10RequiresViolation, __U_MULTI_fjava_BubbleSort_alloca_true_valid_memsafety_true_termination_i__sortErr4RequiresViolation, __U_MULTI_fjava_BubbleSort_alloca_true_valid_memsafety_true_termination_i__sortErr2RequiresViolation, __U_MULTI_fjava_BubbleSort_alloca_true_valid_memsafety_true_termination_i__sortErr8RequiresViolation, __U_MULTI_fjava_BubbleSort_alloca_true_valid_memsafety_true_termination_i__sortErr9RequiresViolation]=== [2018-04-05 15:53:47,212 INFO L82 PathProgramCache]: Analyzing trace with hash -662367462, now seen corresponding path program 16 times No working directory specified, using /storage/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 23 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 23 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2018-04-05 15:53:47,238 INFO L68 tionRefinementEngine]: Using refinement strategy FixedRefinementStrategy [2018-04-05 15:53:47,313 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-04-05 15:53:47,330 INFO L270 TraceCheckSpWp]: Computing forward predicates... [2018-04-05 15:53:51,367 INFO L134 CoverageAnalysis]: Checked inductivity of 1301 backedges. 373 proven. 928 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-04-05 15:53:51,367 INFO L314 TraceCheckSpWp]: Computing backward predicates... [2018-04-05 15:53:53,536 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 13 treesize of output 11 [2018-04-05 15:53:53,537 INFO L267 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2018-04-05 15:53:53,558 INFO L267 ElimStorePlain]: Start of recursive call 1: 2 dim-0 vars, 1 dim-1 vars, End of recursive call: 1 dim-0 vars, and 1 xjuncts. [2018-04-05 15:53:53,558 INFO L202 ElimStorePlain]: Needed 2 recursive calls to eliminate 3 variables, input treesize:26, output treesize:13 [2018-04-05 15:53:54,377 INFO L134 CoverageAnalysis]: Checked inductivity of 1301 backedges. 307 proven. 994 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-04-05 15:53:54,414 INFO L320 seRefinementStrategy]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2018-04-05 15:53:54,414 INFO L335 seRefinementStrategy]: Number of different interpolants: perfect sequences [] imperfect sequences [35, 35] total 52 [2018-04-05 15:53:54,415 INFO L442 AbstractCegarLoop]: Interpolant automaton has 53 states [2018-04-05 15:53:54,417 INFO L132 InterpolantAutomaton]: Constructing interpolant automaton starting with 53 interpolants. [2018-04-05 15:53:54,417 INFO L133 InterpolantAutomaton]: CoverageRelationStatistics Valid=366, Invalid=2390, Unknown=0, NotChecked=0, Total=2756 [2018-04-05 15:53:54,418 INFO L87 Difference]: Start difference. First operand 375 states and 397 transitions. Second operand 53 states. [2018-04-05 15:53:59,450 WARN L151 SmtUtils]: Spent 118ms on a formula simplification. DAG size of input: 22 DAG size of output 18 [2018-04-05 15:54:02,414 WARN L151 SmtUtils]: Spent 117ms on a formula simplification. DAG size of input: 27 DAG size of output 25 [2018-04-05 15:54:02,728 WARN L151 SmtUtils]: Spent 152ms on a formula simplification. DAG size of input: 28 DAG size of output 26 [2018-04-05 15:54:02,916 WARN L151 SmtUtils]: Spent 100ms on a formula simplification. DAG size of input: 24 DAG size of output 22 [2018-04-05 15:54:03,739 WARN L151 SmtUtils]: Spent 122ms on a formula simplification. DAG size of input: 28 DAG size of output 26 [2018-04-05 15:54:04,387 WARN L151 SmtUtils]: Spent 127ms on a formula simplification. DAG size of input: 27 DAG size of output 25 [2018-04-05 15:54:04,710 WARN L151 SmtUtils]: Spent 141ms on a formula simplification. DAG size of input: 27 DAG size of output 25 [2018-04-05 15:54:04,963 WARN L151 SmtUtils]: Spent 117ms on a formula simplification. DAG size of input: 23 DAG size of output 21 [2018-04-05 15:54:05,695 WARN L151 SmtUtils]: Spent 132ms on a formula simplification. DAG size of input: 26 DAG size of output 24 [2018-04-05 15:54:06,020 WARN L151 SmtUtils]: Spent 102ms on a formula simplification. DAG size of input: 27 DAG size of output 25 [2018-04-05 15:54:07,024 WARN L151 SmtUtils]: Spent 216ms on a formula simplification. DAG size of input: 27 DAG size of output 25 [2018-04-05 15:54:07,366 WARN L151 SmtUtils]: Spent 102ms on a formula simplification. DAG size of input: 28 DAG size of output 26 [2018-04-05 15:54:08,230 WARN L151 SmtUtils]: Spent 159ms on a formula simplification. DAG size of input: 27 DAG size of output 25 [2018-04-05 15:54:08,686 WARN L148 SmtUtils]: Spent 152ms on a formula simplification that was a NOOP. DAG size: 26 [2018-04-05 15:54:10,343 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-04-05 15:54:10,343 INFO L93 Difference]: Finished difference Result 376 states and 397 transitions. [2018-04-05 15:54:10,346 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 61 states. [2018-04-05 15:54:10,347 INFO L78 Accepts]: Start accepts. Automaton has 53 states. Word has length 193 [2018-04-05 15:54:10,347 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-04-05 15:54:10,349 INFO L225 Difference]: With dead ends: 376 [2018-04-05 15:54:10,349 INFO L226 Difference]: Without dead ends: 375 [2018-04-05 15:54:10,375 INFO L567 BasicCegarLoop]: 0 DeclaredPredicates, 437 GetRequests, 318 SyntacticMatches, 17 SemanticMatches, 102 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3477 ImplicationChecksByTransitivity, 14.8s TimeCoverageRelationStatistics Valid=1761, Invalid=8951, Unknown=0, NotChecked=0, Total=10712 [2018-04-05 15:54:10,376 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 375 states. [2018-04-05 15:54:10,469 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 375 to 375. [2018-04-05 15:54:10,469 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 375 states. [2018-04-05 15:54:10,482 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 375 states to 375 states and 396 transitions. [2018-04-05 15:54:10,482 INFO L78 Accepts]: Start accepts. Automaton has 375 states and 396 transitions. Word has length 193 [2018-04-05 15:54:10,483 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-04-05 15:54:10,483 INFO L459 AbstractCegarLoop]: Abstraction has 375 states and 396 transitions. [2018-04-05 15:54:10,483 INFO L460 AbstractCegarLoop]: Interpolant automaton has 53 states. [2018-04-05 15:54:10,483 INFO L276 IsEmpty]: Start isEmpty. Operand 375 states and 396 transitions. [2018-04-05 15:54:10,485 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 204 [2018-04-05 15:54:10,485 INFO L347 BasicCegarLoop]: Found error trace [2018-04-05 15:54:10,485 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] [2018-04-05 15:54:10,485 INFO L408 AbstractCegarLoop]: === Iteration 23 === [mainErr0EnsuresViolationMEMORY_LEAK, __U_MULTI_fjava_BubbleSort_alloca_true_valid_memsafety_true_termination_i__sortErr3RequiresViolation, __U_MULTI_fjava_BubbleSort_alloca_true_valid_memsafety_true_termination_i__sortErr11RequiresViolation, __U_MULTI_fjava_BubbleSort_alloca_true_valid_memsafety_true_termination_i__sortErr5RequiresViolation, __U_MULTI_fjava_BubbleSort_alloca_true_valid_memsafety_true_termination_i__sortErr0RequiresViolation, __U_MULTI_fjava_BubbleSort_alloca_true_valid_memsafety_true_termination_i__sortErr1RequiresViolation, __U_MULTI_fjava_BubbleSort_alloca_true_valid_memsafety_true_termination_i__sortErr6RequiresViolation, __U_MULTI_fjava_BubbleSort_alloca_true_valid_memsafety_true_termination_i__sortErr7RequiresViolation, __U_MULTI_fjava_BubbleSort_alloca_true_valid_memsafety_true_termination_i__sortErr10RequiresViolation, __U_MULTI_fjava_BubbleSort_alloca_true_valid_memsafety_true_termination_i__sortErr4RequiresViolation, __U_MULTI_fjava_BubbleSort_alloca_true_valid_memsafety_true_termination_i__sortErr2RequiresViolation, __U_MULTI_fjava_BubbleSort_alloca_true_valid_memsafety_true_termination_i__sortErr8RequiresViolation, __U_MULTI_fjava_BubbleSort_alloca_true_valid_memsafety_true_termination_i__sortErr9RequiresViolation]=== [2018-04-05 15:54:10,486 INFO L82 PathProgramCache]: Analyzing trace with hash -2135190074, now seen corresponding path program 17 times No working directory specified, using /storage/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 24 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 24 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2018-04-05 15:54:10,529 INFO L68 tionRefinementEngine]: Using refinement strategy FixedRefinementStrategy [2018-04-05 15:54:10,681 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-04-05 15:54:10,698 INFO L270 TraceCheckSpWp]: Computing forward predicates... [2018-04-05 15:54:15,388 WARN L148 SmtUtils]: Spent 157ms on a formula simplification that was a NOOP. DAG size: 9 [2018-04-05 15:54:18,290 INFO L134 CoverageAnalysis]: Checked inductivity of 1467 backedges. 333 proven. 1134 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-04-05 15:54:18,290 INFO L314 TraceCheckSpWp]: Computing backward predicates... [2018-04-05 15:54:24,778 INFO L134 CoverageAnalysis]: Checked inductivity of 1467 backedges. 333 proven. 1134 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-04-05 15:54:24,815 INFO L320 seRefinementStrategy]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2018-04-05 15:54:24,815 INFO L335 seRefinementStrategy]: Number of different interpolants: perfect sequences [] imperfect sequences [41, 41] total 58 [2018-04-05 15:54:24,816 INFO L442 AbstractCegarLoop]: Interpolant automaton has 58 states [2018-04-05 15:54:24,816 INFO L132 InterpolantAutomaton]: Constructing interpolant automaton starting with 58 interpolants. [2018-04-05 15:54:24,816 INFO L133 InterpolantAutomaton]: CoverageRelationStatistics Valid=438, Invalid=2868, Unknown=0, NotChecked=0, Total=3306 [2018-04-05 15:54:24,817 INFO L87 Difference]: Start difference. First operand 375 states and 396 transitions. Second operand 58 states. [2018-04-05 15:54:30,606 WARN L148 SmtUtils]: Spent 340ms on a formula simplification that was a NOOP. DAG size: 14 [2018-04-05 15:54:37,759 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-04-05 15:54:37,759 INFO L93 Difference]: Finished difference Result 787 states and 832 transitions. [2018-04-05 15:54:37,760 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 60 states. [2018-04-05 15:54:37,760 INFO L78 Accepts]: Start accepts. Automaton has 58 states. Word has length 203 [2018-04-05 15:54:37,761 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-04-05 15:54:37,762 INFO L225 Difference]: With dead ends: 787 [2018-04-05 15:54:37,763 INFO L226 Difference]: Without dead ends: 447 [2018-04-05 15:54:37,765 INFO L567 BasicCegarLoop]: 0 DeclaredPredicates, 453 GetRequests, 328 SyntacticMatches, 22 SemanticMatches, 103 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3136 ImplicationChecksByTransitivity, 20.9s TimeCoverageRelationStatistics Valid=1799, Invalid=9121, Unknown=0, NotChecked=0, Total=10920 [2018-04-05 15:54:37,774 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 447 states. [2018-04-05 15:54:37,819 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 447 to 413. [2018-04-05 15:54:37,819 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 413 states. [2018-04-05 15:54:37,821 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 413 states to 413 states and 437 transitions. [2018-04-05 15:54:37,821 INFO L78 Accepts]: Start accepts. Automaton has 413 states and 437 transitions. Word has length 203 [2018-04-05 15:54:37,821 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-04-05 15:54:37,821 INFO L459 AbstractCegarLoop]: Abstraction has 413 states and 437 transitions. [2018-04-05 15:54:37,822 INFO L460 AbstractCegarLoop]: Interpolant automaton has 58 states. [2018-04-05 15:54:37,822 INFO L276 IsEmpty]: Start isEmpty. Operand 413 states and 437 transitions. [2018-04-05 15:54:37,823 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 214 [2018-04-05 15:54:37,823 INFO L347 BasicCegarLoop]: Found error trace [2018-04-05 15:54:37,824 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] [2018-04-05 15:54:37,824 INFO L408 AbstractCegarLoop]: === Iteration 24 === [mainErr0EnsuresViolationMEMORY_LEAK, __U_MULTI_fjava_BubbleSort_alloca_true_valid_memsafety_true_termination_i__sortErr3RequiresViolation, __U_MULTI_fjava_BubbleSort_alloca_true_valid_memsafety_true_termination_i__sortErr11RequiresViolation, __U_MULTI_fjava_BubbleSort_alloca_true_valid_memsafety_true_termination_i__sortErr5RequiresViolation, __U_MULTI_fjava_BubbleSort_alloca_true_valid_memsafety_true_termination_i__sortErr0RequiresViolation, __U_MULTI_fjava_BubbleSort_alloca_true_valid_memsafety_true_termination_i__sortErr1RequiresViolation, __U_MULTI_fjava_BubbleSort_alloca_true_valid_memsafety_true_termination_i__sortErr6RequiresViolation, __U_MULTI_fjava_BubbleSort_alloca_true_valid_memsafety_true_termination_i__sortErr7RequiresViolation, __U_MULTI_fjava_BubbleSort_alloca_true_valid_memsafety_true_termination_i__sortErr10RequiresViolation, __U_MULTI_fjava_BubbleSort_alloca_true_valid_memsafety_true_termination_i__sortErr4RequiresViolation, __U_MULTI_fjava_BubbleSort_alloca_true_valid_memsafety_true_termination_i__sortErr2RequiresViolation, __U_MULTI_fjava_BubbleSort_alloca_true_valid_memsafety_true_termination_i__sortErr8RequiresViolation, __U_MULTI_fjava_BubbleSort_alloca_true_valid_memsafety_true_termination_i__sortErr9RequiresViolation]=== [2018-04-05 15:54:37,824 INFO L82 PathProgramCache]: Analyzing trace with hash 939886322, now seen corresponding path program 18 times No working directory specified, using /storage/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 25 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 25 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2018-04-05 15:54:37,845 INFO L68 tionRefinementEngine]: Using refinement strategy FixedRefinementStrategy [2018-04-05 15:54:37,974 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-04-05 15:54:37,981 INFO L270 TraceCheckSpWp]: Computing forward predicates... [2018-04-05 15:54:41,937 INFO L134 CoverageAnalysis]: Checked inductivity of 1643 backedges. 465 proven. 1178 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-04-05 15:54:41,938 INFO L314 TraceCheckSpWp]: Computing backward predicates... [2018-04-05 15:54:45,500 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 13 treesize of output 11 [2018-04-05 15:54:45,501 INFO L267 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2018-04-05 15:54:45,514 INFO L267 ElimStorePlain]: Start of recursive call 1: 2 dim-0 vars, 1 dim-1 vars, End of recursive call: 1 dim-0 vars, and 1 xjuncts. [2018-04-05 15:54:45,514 INFO L202 ElimStorePlain]: Needed 2 recursive calls to eliminate 3 variables, input treesize:26, output treesize:13 [2018-04-05 15:54:47,352 INFO L134 CoverageAnalysis]: Checked inductivity of 1643 backedges. 390 proven. 1253 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-04-05 15:54:47,388 INFO L320 seRefinementStrategy]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2018-04-05 15:54:47,389 INFO L335 seRefinementStrategy]: Number of different interpolants: perfect sequences [] imperfect sequences [39, 39] total 58 [2018-04-05 15:54:47,389 INFO L442 AbstractCegarLoop]: Interpolant automaton has 59 states [2018-04-05 15:54:47,390 INFO L132 InterpolantAutomaton]: Constructing interpolant automaton starting with 59 interpolants. [2018-04-05 15:54:47,390 INFO L133 InterpolantAutomaton]: CoverageRelationStatistics Valid=446, Invalid=2976, Unknown=0, NotChecked=0, Total=3422 [2018-04-05 15:54:47,390 INFO L87 Difference]: Start difference. First operand 413 states and 437 transitions. Second operand 59 states. [2018-04-05 15:54:54,783 WARN L148 SmtUtils]: Spent 202ms on a formula simplification that was a NOOP. DAG size: 16 [2018-04-05 15:54:59,138 WARN L151 SmtUtils]: Spent 100ms on a formula simplification. DAG size of input: 27 DAG size of output 25 [2018-04-05 15:54:59,711 WARN L151 SmtUtils]: Spent 128ms on a formula simplification. DAG size of input: 27 DAG size of output 25 [2018-04-05 15:55:00,904 WARN L151 SmtUtils]: Spent 112ms on a formula simplification. DAG size of input: 24 DAG size of output 22 [2018-04-05 15:55:01,734 WARN L151 SmtUtils]: Spent 115ms on a formula simplification. DAG size of input: 27 DAG size of output 25 [2018-04-05 15:55:02,645 WARN L151 SmtUtils]: Spent 110ms on a formula simplification. DAG size of input: 26 DAG size of output 24 [2018-04-05 15:55:03,640 WARN L151 SmtUtils]: Spent 612ms on a formula simplification. DAG size of input: 27 DAG size of output 25 [2018-04-05 15:55:04,346 WARN L151 SmtUtils]: Spent 371ms on a formula simplification. DAG size of input: 24 DAG size of output 22 [2018-04-05 15:55:05,862 WARN L151 SmtUtils]: Spent 117ms on a formula simplification. DAG size of input: 28 DAG size of output 26 [2018-04-05 15:55:07,041 WARN L151 SmtUtils]: Spent 210ms on a formula simplification. DAG size of input: 28 DAG size of output 26 [2018-04-05 15:55:07,878 WARN L151 SmtUtils]: Spent 107ms on a formula simplification. DAG size of input: 27 DAG size of output 25 [2018-04-05 15:55:09,311 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-04-05 15:55:09,311 INFO L93 Difference]: Finished difference Result 414 states and 437 transitions. [2018-04-05 15:55:09,312 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 68 states. [2018-04-05 15:55:09,312 INFO L78 Accepts]: Start accepts. Automaton has 59 states. Word has length 213 [2018-04-05 15:55:09,313 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-04-05 15:55:09,314 INFO L225 Difference]: With dead ends: 414 [2018-04-05 15:55:09,315 INFO L226 Difference]: Without dead ends: 413 [2018-04-05 15:55:09,316 INFO L567 BasicCegarLoop]: 0 DeclaredPredicates, 483 GetRequests, 350 SyntacticMatches, 19 SemanticMatches, 114 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 4429 ImplicationChecksByTransitivity, 19.3s TimeCoverageRelationStatistics Valid=2156, Invalid=11184, Unknown=0, NotChecked=0, Total=13340 [2018-04-05 15:55:09,317 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 413 states. [2018-04-05 15:55:09,421 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 413 to 413. [2018-04-05 15:55:09,421 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 413 states. [2018-04-05 15:55:09,422 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 413 states to 413 states and 436 transitions. [2018-04-05 15:55:09,423 INFO L78 Accepts]: Start accepts. Automaton has 413 states and 436 transitions. Word has length 213 [2018-04-05 15:55:09,423 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-04-05 15:55:09,424 INFO L459 AbstractCegarLoop]: Abstraction has 413 states and 436 transitions. [2018-04-05 15:55:09,426 INFO L460 AbstractCegarLoop]: Interpolant automaton has 59 states. [2018-04-05 15:55:09,426 INFO L276 IsEmpty]: Start isEmpty. Operand 413 states and 436 transitions. [2018-04-05 15:55:09,428 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 224 [2018-04-05 15:55:09,428 INFO L347 BasicCegarLoop]: Found error trace [2018-04-05 15:55:09,429 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] [2018-04-05 15:55:09,429 INFO L408 AbstractCegarLoop]: === Iteration 25 === [mainErr0EnsuresViolationMEMORY_LEAK, __U_MULTI_fjava_BubbleSort_alloca_true_valid_memsafety_true_termination_i__sortErr3RequiresViolation, __U_MULTI_fjava_BubbleSort_alloca_true_valid_memsafety_true_termination_i__sortErr11RequiresViolation, __U_MULTI_fjava_BubbleSort_alloca_true_valid_memsafety_true_termination_i__sortErr5RequiresViolation, __U_MULTI_fjava_BubbleSort_alloca_true_valid_memsafety_true_termination_i__sortErr0RequiresViolation, __U_MULTI_fjava_BubbleSort_alloca_true_valid_memsafety_true_termination_i__sortErr1RequiresViolation, __U_MULTI_fjava_BubbleSort_alloca_true_valid_memsafety_true_termination_i__sortErr6RequiresViolation, __U_MULTI_fjava_BubbleSort_alloca_true_valid_memsafety_true_termination_i__sortErr7RequiresViolation, __U_MULTI_fjava_BubbleSort_alloca_true_valid_memsafety_true_termination_i__sortErr10RequiresViolation, __U_MULTI_fjava_BubbleSort_alloca_true_valid_memsafety_true_termination_i__sortErr4RequiresViolation, __U_MULTI_fjava_BubbleSort_alloca_true_valid_memsafety_true_termination_i__sortErr2RequiresViolation, __U_MULTI_fjava_BubbleSort_alloca_true_valid_memsafety_true_termination_i__sortErr8RequiresViolation, __U_MULTI_fjava_BubbleSort_alloca_true_valid_memsafety_true_termination_i__sortErr9RequiresViolation]=== [2018-04-05 15:55:09,429 INFO L82 PathProgramCache]: Analyzing trace with hash -578872418, now seen corresponding path program 19 times No working directory specified, using /storage/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 26 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 26 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2018-04-05 15:55:09,451 INFO L68 tionRefinementEngine]: Using refinement strategy FixedRefinementStrategy [2018-04-05 15:55:09,580 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-04-05 15:55:09,586 INFO L270 TraceCheckSpWp]: Computing forward predicates... [2018-04-05 15:55:15,022 INFO L134 CoverageAnalysis]: Checked inductivity of 1829 backedges. 419 proven. 1410 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-04-05 15:55:15,022 INFO L314 TraceCheckSpWp]: Computing backward predicates... [2018-04-05 15:55:22,220 INFO L134 CoverageAnalysis]: Checked inductivity of 1829 backedges. 419 proven. 1410 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-04-05 15:55:22,276 INFO L320 seRefinementStrategy]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2018-04-05 15:55:22,276 INFO L335 seRefinementStrategy]: Number of different interpolants: perfect sequences [] imperfect sequences [45, 45] total 64 [2018-04-05 15:55:22,277 INFO L442 AbstractCegarLoop]: Interpolant automaton has 64 states [2018-04-05 15:55:22,277 INFO L132 InterpolantAutomaton]: Constructing interpolant automaton starting with 64 interpolants. [2018-04-05 15:55:22,277 INFO L133 InterpolantAutomaton]: CoverageRelationStatistics Valid=526, Invalid=3506, Unknown=0, NotChecked=0, Total=4032 [2018-04-05 15:55:22,278 INFO L87 Difference]: Start difference. First operand 413 states and 436 transitions. Second operand 64 states. [2018-04-05 15:55:24,723 WARN L148 SmtUtils]: Spent 119ms on a formula simplification that was a NOOP. DAG size: 6 [2018-04-05 15:55:38,315 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-04-05 15:55:38,315 INFO L93 Difference]: Finished difference Result 863 states and 912 transitions. [2018-04-05 15:55:38,316 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 66 states. [2018-04-05 15:55:38,316 INFO L78 Accepts]: Start accepts. Automaton has 64 states. Word has length 223 [2018-04-05 15:55:38,316 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-04-05 15:55:38,318 INFO L225 Difference]: With dead ends: 863 [2018-04-05 15:55:38,318 INFO L226 Difference]: Without dead ends: 485 [2018-04-05 15:55:38,326 INFO L567 BasicCegarLoop]: 0 DeclaredPredicates, 498 GetRequests, 360 SyntacticMatches, 24 SemanticMatches, 114 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3874 ImplicationChecksByTransitivity, 21.2s TimeCoverageRelationStatistics Valid=2173, Invalid=11167, Unknown=0, NotChecked=0, Total=13340 [2018-04-05 15:55:38,326 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 485 states. [2018-04-05 15:55:38,417 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 485 to 451. [2018-04-05 15:55:38,418 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 451 states. [2018-04-05 15:55:38,421 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 451 states to 451 states and 477 transitions. [2018-04-05 15:55:38,421 INFO L78 Accepts]: Start accepts. Automaton has 451 states and 477 transitions. Word has length 223 [2018-04-05 15:55:38,422 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-04-05 15:55:38,422 INFO L459 AbstractCegarLoop]: Abstraction has 451 states and 477 transitions. [2018-04-05 15:55:38,422 INFO L460 AbstractCegarLoop]: Interpolant automaton has 64 states. [2018-04-05 15:55:38,422 INFO L276 IsEmpty]: Start isEmpty. Operand 451 states and 477 transitions. [2018-04-05 15:55:38,445 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 234 [2018-04-05 15:55:38,445 INFO L347 BasicCegarLoop]: Found error trace [2018-04-05 15:55:38,446 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] [2018-04-05 15:55:38,446 INFO L408 AbstractCegarLoop]: === Iteration 26 === [mainErr0EnsuresViolationMEMORY_LEAK, __U_MULTI_fjava_BubbleSort_alloca_true_valid_memsafety_true_termination_i__sortErr3RequiresViolation, __U_MULTI_fjava_BubbleSort_alloca_true_valid_memsafety_true_termination_i__sortErr11RequiresViolation, __U_MULTI_fjava_BubbleSort_alloca_true_valid_memsafety_true_termination_i__sortErr5RequiresViolation, __U_MULTI_fjava_BubbleSort_alloca_true_valid_memsafety_true_termination_i__sortErr0RequiresViolation, __U_MULTI_fjava_BubbleSort_alloca_true_valid_memsafety_true_termination_i__sortErr1RequiresViolation, __U_MULTI_fjava_BubbleSort_alloca_true_valid_memsafety_true_termination_i__sortErr6RequiresViolation, __U_MULTI_fjava_BubbleSort_alloca_true_valid_memsafety_true_termination_i__sortErr7RequiresViolation, __U_MULTI_fjava_BubbleSort_alloca_true_valid_memsafety_true_termination_i__sortErr10RequiresViolation, __U_MULTI_fjava_BubbleSort_alloca_true_valid_memsafety_true_termination_i__sortErr4RequiresViolation, __U_MULTI_fjava_BubbleSort_alloca_true_valid_memsafety_true_termination_i__sortErr2RequiresViolation, __U_MULTI_fjava_BubbleSort_alloca_true_valid_memsafety_true_termination_i__sortErr8RequiresViolation, __U_MULTI_fjava_BubbleSort_alloca_true_valid_memsafety_true_termination_i__sortErr9RequiresViolation]=== [2018-04-05 15:55:38,446 INFO L82 PathProgramCache]: Analyzing trace with hash 1068547786, now seen corresponding path program 20 times No working directory specified, using /storage/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 27 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 27 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2018-04-05 15:55:38,468 INFO L68 tionRefinementEngine]: Using refinement strategy FixedRefinementStrategy [2018-04-05 15:55:38,615 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-04-05 15:55:38,630 INFO L270 TraceCheckSpWp]: Computing forward predicates... [2018-04-05 15:55:46,757 INFO L134 CoverageAnalysis]: Checked inductivity of 2025 backedges. 567 proven. 1458 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-04-05 15:55:46,757 INFO L314 TraceCheckSpWp]: Computing backward predicates... [2018-04-05 15:55:50,921 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 13 treesize of output 11 [2018-04-05 15:55:50,922 INFO L267 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2018-04-05 15:55:50,957 INFO L267 ElimStorePlain]: Start of recursive call 1: 2 dim-0 vars, 1 dim-1 vars, End of recursive call: 1 dim-0 vars, and 1 xjuncts. [2018-04-05 15:55:50,958 INFO L202 ElimStorePlain]: Needed 2 recursive calls to eliminate 3 variables, input treesize:26, output treesize:13 [2018-04-05 15:55:53,327 INFO L134 CoverageAnalysis]: Checked inductivity of 2025 backedges. 483 proven. 1542 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-04-05 15:55:53,363 INFO L320 seRefinementStrategy]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2018-04-05 15:55:53,364 INFO L335 seRefinementStrategy]: Number of different interpolants: perfect sequences [] imperfect sequences [43, 43] total 64 [2018-04-05 15:55:53,364 INFO L442 AbstractCegarLoop]: Interpolant automaton has 65 states [2018-04-05 15:55:53,365 INFO L132 InterpolantAutomaton]: Constructing interpolant automaton starting with 65 interpolants. [2018-04-05 15:55:53,365 INFO L133 InterpolantAutomaton]: CoverageRelationStatistics Valid=534, Invalid=3626, Unknown=0, NotChecked=0, Total=4160 [2018-04-05 15:55:53,365 INFO L87 Difference]: Start difference. First operand 451 states and 477 transitions. Second operand 65 states. [2018-04-05 15:56:07,904 WARN L151 SmtUtils]: Spent 191ms on a formula simplification. DAG size of input: 22 DAG size of output 19 [2018-04-05 15:56:08,907 WARN L151 SmtUtils]: Spent 132ms on a formula simplification. DAG size of input: 26 DAG size of output 24 [2018-04-05 15:56:09,108 WARN L151 SmtUtils]: Spent 133ms on a formula simplification. DAG size of input: 27 DAG size of output 25 [2018-04-05 15:56:09,473 WARN L151 SmtUtils]: Spent 148ms on a formula simplification. DAG size of input: 24 DAG size of output 22 [2018-04-05 15:56:10,448 WARN L151 SmtUtils]: Spent 250ms on a formula simplification. DAG size of input: 27 DAG size of output 25 [2018-04-05 15:56:10,925 WARN L151 SmtUtils]: Spent 232ms on a formula simplification. DAG size of input: 28 DAG size of output 26 [2018-04-05 15:56:11,308 WARN L151 SmtUtils]: Spent 180ms on a formula simplification. DAG size of input: 24 DAG size of output 22 [2018-04-05 15:56:12,646 WARN L151 SmtUtils]: Spent 212ms on a formula simplification. DAG size of input: 27 DAG size of output 25 [2018-04-05 15:56:13,126 WARN L151 SmtUtils]: Spent 128ms on a formula simplification. DAG size of input: 28 DAG size of output 26 [2018-04-05 15:56:13,995 WARN L151 SmtUtils]: Spent 116ms on a formula simplification. DAG size of input: 27 DAG size of output 25 [2018-04-05 15:56:14,300 WARN L151 SmtUtils]: Spent 123ms on a formula simplification. DAG size of input: 27 DAG size of output 25 [2018-04-05 15:56:15,163 WARN L151 SmtUtils]: Spent 116ms on a formula simplification. DAG size of input: 26 DAG size of output 24 [2018-04-05 15:56:15,462 WARN L151 SmtUtils]: Spent 115ms on a formula simplification. DAG size of input: 27 DAG size of output 25 [2018-04-05 15:56:15,979 WARN L151 SmtUtils]: Spent 218ms on a formula simplification. DAG size of input: 24 DAG size of output 22 [2018-04-05 15:56:17,766 WARN L151 SmtUtils]: Spent 264ms on a formula simplification. DAG size of input: 27 DAG size of output 25 [2018-04-05 15:56:18,115 WARN L151 SmtUtils]: Spent 111ms on a formula simplification. DAG size of input: 28 DAG size of output 26 [2018-04-05 15:56:18,992 WARN L151 SmtUtils]: Spent 102ms on a formula simplification. DAG size of input: 27 DAG size of output 25 [2018-04-05 15:56:19,330 WARN L151 SmtUtils]: Spent 112ms on a formula simplification. DAG size of input: 28 DAG size of output 26 [2018-04-05 15:56:20,331 WARN L151 SmtUtils]: Spent 110ms on a formula simplification. DAG size of input: 27 DAG size of output 25 [2018-04-05 15:56:20,695 WARN L151 SmtUtils]: Spent 114ms on a formula simplification. DAG size of input: 28 DAG size of output 26 [2018-04-05 15:56:21,778 WARN L151 SmtUtils]: Spent 109ms on a formula simplification. DAG size of input: 27 DAG size of output 25 [2018-04-05 15:56:23,433 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-04-05 15:56:23,434 INFO L93 Difference]: Finished difference Result 452 states and 477 transitions. [2018-04-05 15:56:23,434 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 75 states. [2018-04-05 15:56:23,434 INFO L78 Accepts]: Start accepts. Automaton has 65 states. Word has length 233 [2018-04-05 15:56:23,435 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-04-05 15:56:23,437 INFO L225 Difference]: With dead ends: 452 [2018-04-05 15:56:23,437 INFO L226 Difference]: Without dead ends: 451 [2018-04-05 15:56:23,447 INFO L567 BasicCegarLoop]: 0 DeclaredPredicates, 529 GetRequests, 382 SyntacticMatches, 21 SemanticMatches, 126 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 5496 ImplicationChecksByTransitivity, 27.1s TimeCoverageRelationStatistics Valid=2591, Invalid=13665, Unknown=0, NotChecked=0, Total=16256 [2018-04-05 15:56:23,447 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 451 states. [2018-04-05 15:56:23,550 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 451 to 451. [2018-04-05 15:56:23,551 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 451 states. [2018-04-05 15:56:23,561 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 451 states to 451 states and 476 transitions. [2018-04-05 15:56:23,562 INFO L78 Accepts]: Start accepts. Automaton has 451 states and 476 transitions. Word has length 233 [2018-04-05 15:56:23,562 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-04-05 15:56:23,562 INFO L459 AbstractCegarLoop]: Abstraction has 451 states and 476 transitions. [2018-04-05 15:56:23,563 INFO L460 AbstractCegarLoop]: Interpolant automaton has 65 states. [2018-04-05 15:56:23,563 INFO L276 IsEmpty]: Start isEmpty. Operand 451 states and 476 transitions. [2018-04-05 15:56:23,564 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 244 [2018-04-05 15:56:23,565 INFO L347 BasicCegarLoop]: Found error trace [2018-04-05 15:56:23,565 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] [2018-04-05 15:56:23,565 INFO L408 AbstractCegarLoop]: === Iteration 27 === [mainErr0EnsuresViolationMEMORY_LEAK, __U_MULTI_fjava_BubbleSort_alloca_true_valid_memsafety_true_termination_i__sortErr3RequiresViolation, __U_MULTI_fjava_BubbleSort_alloca_true_valid_memsafety_true_termination_i__sortErr11RequiresViolation, __U_MULTI_fjava_BubbleSort_alloca_true_valid_memsafety_true_termination_i__sortErr5RequiresViolation, __U_MULTI_fjava_BubbleSort_alloca_true_valid_memsafety_true_termination_i__sortErr0RequiresViolation, __U_MULTI_fjava_BubbleSort_alloca_true_valid_memsafety_true_termination_i__sortErr1RequiresViolation, __U_MULTI_fjava_BubbleSort_alloca_true_valid_memsafety_true_termination_i__sortErr6RequiresViolation, __U_MULTI_fjava_BubbleSort_alloca_true_valid_memsafety_true_termination_i__sortErr7RequiresViolation, __U_MULTI_fjava_BubbleSort_alloca_true_valid_memsafety_true_termination_i__sortErr10RequiresViolation, __U_MULTI_fjava_BubbleSort_alloca_true_valid_memsafety_true_termination_i__sortErr4RequiresViolation, __U_MULTI_fjava_BubbleSort_alloca_true_valid_memsafety_true_termination_i__sortErr2RequiresViolation, __U_MULTI_fjava_BubbleSort_alloca_true_valid_memsafety_true_termination_i__sortErr8RequiresViolation, __U_MULTI_fjava_BubbleSort_alloca_true_valid_memsafety_true_termination_i__sortErr9RequiresViolation]=== [2018-04-05 15:56:23,565 INFO L82 PathProgramCache]: Analyzing trace with hash 1321756022, now seen corresponding path program 21 times No working directory specified, using /storage/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 28 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 28 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2018-04-05 15:56:23,604 INFO L68 tionRefinementEngine]: Using refinement strategy FixedRefinementStrategy [2018-04-05 15:56:23,709 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-04-05 15:56:23,716 INFO L270 TraceCheckSpWp]: Computing forward predicates... [2018-04-05 15:56:31,567 INFO L134 CoverageAnalysis]: Checked inductivity of 2231 backedges. 515 proven. 1716 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-04-05 15:56:31,567 INFO L314 TraceCheckSpWp]: Computing backward predicates... [2018-04-05 15:56:39,648 INFO L134 CoverageAnalysis]: Checked inductivity of 2231 backedges. 515 proven. 1716 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-04-05 15:56:39,724 INFO L320 seRefinementStrategy]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2018-04-05 15:56:39,724 INFO L335 seRefinementStrategy]: Number of different interpolants: perfect sequences [] imperfect sequences [49, 49] total 70 [2018-04-05 15:56:39,725 INFO L442 AbstractCegarLoop]: Interpolant automaton has 70 states [2018-04-05 15:56:39,725 INFO L132 InterpolantAutomaton]: Constructing interpolant automaton starting with 70 interpolants. [2018-04-05 15:56:39,726 INFO L133 InterpolantAutomaton]: CoverageRelationStatistics Valid=622, Invalid=4208, Unknown=0, NotChecked=0, Total=4830 [2018-04-05 15:56:39,726 INFO L87 Difference]: Start difference. First operand 451 states and 476 transitions. Second operand 70 states.