java -Xmx6000000000 -jar ./plugins/org.eclipse.equinox.launcher_1.3.100.v20150511-1540.jar -data ./data --generate-csv --csv-dir ../../../releaseScripts/default/UAutomizer-linux/csv -tc ../../../trunk/examples/toolchains/AutomizerC.xml -s ../../../trunk/examples/settings/ai/eq-bench/svcomp-DerefFreeMemtrack-32bit-Automizer_Fixed_noBitfields+AI_EQ_SS.epf -i ../../../trunk/examples/svcomp/array-memsafety/bubblesort-alloca_true-valid-memsafety_true-termination.i -------------------------------------------------------------------------------- This is Ultimate 0.1.23-1cf7e2d-m [2018-03-29 20:13:49,277 INFO L170 SettingsManager]: Resetting all preferences to default values... [2018-03-29 20:13:49,279 INFO L174 SettingsManager]: Resetting UltimateCore preferences to default values [2018-03-29 20:13:49,293 INFO L177 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2018-03-29 20:13:49,293 INFO L174 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2018-03-29 20:13:49,294 INFO L174 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2018-03-29 20:13:49,294 INFO L174 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2018-03-29 20:13:49,295 INFO L174 SettingsManager]: Resetting LassoRanker preferences to default values [2018-03-29 20:13:49,297 INFO L174 SettingsManager]: Resetting Reaching Definitions preferences to default values [2018-03-29 20:13:49,298 INFO L174 SettingsManager]: Resetting SyntaxChecker preferences to default values [2018-03-29 20:13:49,299 INFO L177 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2018-03-29 20:13:49,299 INFO L174 SettingsManager]: Resetting LTL2Aut preferences to default values [2018-03-29 20:13:49,300 INFO L174 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2018-03-29 20:13:49,301 INFO L174 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2018-03-29 20:13:49,302 INFO L174 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2018-03-29 20:13:49,305 INFO L174 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2018-03-29 20:13:49,307 INFO L174 SettingsManager]: Resetting CodeCheck preferences to default values [2018-03-29 20:13:49,308 INFO L174 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2018-03-29 20:13:49,310 INFO L174 SettingsManager]: Resetting RCFGBuilder preferences to default values [2018-03-29 20:13:49,311 INFO L174 SettingsManager]: Resetting TraceAbstraction preferences to default values [2018-03-29 20:13:49,313 INFO L177 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2018-03-29 20:13:49,313 INFO L177 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2018-03-29 20:13:49,313 INFO L174 SettingsManager]: Resetting IcfgTransformer preferences to default values [2018-03-29 20:13:49,314 INFO L174 SettingsManager]: Resetting Boogie Printer preferences to default values [2018-03-29 20:13:49,315 INFO L174 SettingsManager]: Resetting Witness Printer preferences to default values [2018-03-29 20:13:49,316 INFO L177 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2018-03-29 20:13:49,317 INFO L174 SettingsManager]: Resetting CDTParser preferences to default values [2018-03-29 20:13:49,317 INFO L174 SettingsManager]: Resetting PEA to Boogie preferences to default values [2018-03-29 20:13:49,318 INFO L177 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2018-03-29 20:13:49,318 INFO L174 SettingsManager]: Resetting Witness Parser preferences to default values [2018-03-29 20:13:49,319 INFO L181 SettingsManager]: Finished resetting all preferences to default values... [2018-03-29 20:13:49,319 INFO L98 SettingsManager]: Beginning loading settings from /storage/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/settings/ai/eq-bench/svcomp-DerefFreeMemtrack-32bit-Automizer_Fixed_noBitfields+AI_EQ_SS.epf [2018-03-29 20:13:49,343 INFO L110 SettingsManager]: Loading preferences was successful [2018-03-29 20:13:49,343 INFO L112 SettingsManager]: Preferences different from defaults after loading the file: [2018-03-29 20:13:49,344 INFO L131 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2018-03-29 20:13:49,344 INFO L133 SettingsManager]: * ultimate.logging.details=de.uni_freiburg.informatik.ultimate.plugins.icfgtransformation=DEBUG; [2018-03-29 20:13:49,344 INFO L131 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2018-03-29 20:13:49,345 INFO L133 SettingsManager]: * to procedures, called more than once=true [2018-03-29 20:13:49,345 INFO L131 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2018-03-29 20:13:49,345 INFO L133 SettingsManager]: * Abstract domain for RCFG-of-the-future=VPDomain [2018-03-29 20:13:49,345 INFO L133 SettingsManager]: * Use the RCFG-of-the-future interface=true [2018-03-29 20:13:49,346 INFO L131 SettingsManager]: Preferences of LTL2Aut differ from their defaults: [2018-03-29 20:13:49,346 INFO L133 SettingsManager]: * Property to check=[] a a: x > 42 [2018-03-29 20:13:49,346 INFO L131 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2018-03-29 20:13:49,346 INFO L133 SettingsManager]: * sizeof long=4 [2018-03-29 20:13:49,346 INFO L133 SettingsManager]: * Check unreachability of error function in SV-COMP mode=false [2018-03-29 20:13:49,347 INFO L133 SettingsManager]: * Overapproximate operations on floating types=true [2018-03-29 20:13:49,347 INFO L133 SettingsManager]: * sizeof POINTER=4 [2018-03-29 20:13:49,347 INFO L133 SettingsManager]: * Check division by zero=IGNORE [2018-03-29 20:13:49,347 INFO L133 SettingsManager]: * Check for the main procedure if all allocated memory was freed=true [2018-03-29 20:13:49,347 INFO L133 SettingsManager]: * SV-COMP memtrack compatibility mode=true [2018-03-29 20:13:49,348 INFO L133 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2018-03-29 20:13:49,348 INFO L133 SettingsManager]: * sizeof long double=12 [2018-03-29 20:13:49,348 INFO L131 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2018-03-29 20:13:49,348 INFO L133 SettingsManager]: * Size of a code block=SingleStatement [2018-03-29 20:13:49,348 INFO L133 SettingsManager]: * Add additional assume for each assert=false [2018-03-29 20:13:49,349 INFO L133 SettingsManager]: * SMT solver=External_DefaultMode [2018-03-29 20:13:49,349 INFO L133 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2018-03-29 20:13:49,349 INFO L131 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2018-03-29 20:13:49,349 INFO L133 SettingsManager]: * Interpolant automaton=TWOTRACK [2018-03-29 20:13:49,349 INFO L133 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2018-03-29 20:13:49,350 INFO L133 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2018-03-29 20:13:49,350 INFO L133 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2018-03-29 20:13:49,350 INFO L133 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2018-03-29 20:13:49,350 INFO L133 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2018-03-29 20:13:49,351 INFO L131 SettingsManager]: Preferences of IcfgTransformer differ from their defaults: [2018-03-29 20:13:49,351 INFO L133 SettingsManager]: * TransformationType=HEAP_SEPARATOR [2018-03-29 20:13:49,351 INFO L131 SettingsManager]: Preferences of Boogie Printer differ from their defaults: [2018-03-29 20:13:49,352 INFO L133 SettingsManager]: * Dump path:=C:\Users\alex\AppData\Local\Temp\ [2018-03-29 20:13:49,386 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2018-03-29 20:13:49,399 INFO L266 ainManager$Toolchain]: [Toolchain 1]: Parser(s) successfully (re)initialized [2018-03-29 20:13:49,403 INFO L222 ainManager$Toolchain]: [Toolchain 1]: Toolchain data selected. [2018-03-29 20:13:49,404 INFO L271 PluginConnector]: Initializing CDTParser... [2018-03-29 20:13:49,405 INFO L276 PluginConnector]: CDTParser initialized [2018-03-29 20:13:49,405 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/array-memsafety/bubblesort-alloca_true-valid-memsafety_true-termination.i [2018-03-29 20:13:49,717 INFO L225 CDTParser]: Created temporary CDT project at /storage/ultimate/releaseScripts/default/UAutomizer-linux/data/FLAG43ee9272a [2018-03-29 20:13:49,874 INFO L287 CDTParser]: IsIndexed: true [2018-03-29 20:13:49,874 INFO L288 CDTParser]: Found 1 translation units. [2018-03-29 20:13:49,874 INFO L168 CDTParser]: Scanning bubblesort-alloca_true-valid-memsafety_true-termination.i [2018-03-29 20:13:49,885 INFO L210 ultiparseSymbolTable]: Include resolver: [2018-03-29 20:13:49,885 INFO L215 ultiparseSymbolTable]: [2018-03-29 20:13:49,886 INFO L218 ultiparseSymbolTable]: Function table: [2018-03-29 20:13:49,886 INFO L221 ultiparseSymbolTable]: Function definition of __U_MULTI_fbubblesort_alloca_true_valid_memsafety_true_termination_i__bubbleSort ('bubbleSort') in bubblesort-alloca_true-valid-memsafety_true-termination.i [2018-03-29 20:13:49,886 INFO L221 ultiparseSymbolTable]: Function definition of __U_MULTI_fbubblesort_alloca_true_valid_memsafety_true_termination_i____bswap_32 ('__bswap_32') in bubblesort-alloca_true-valid-memsafety_true-termination.i [2018-03-29 20:13:49,886 INFO L221 ultiparseSymbolTable]: Function definition of null ('main') in bubblesort-alloca_true-valid-memsafety_true-termination.i [2018-03-29 20:13:49,886 INFO L221 ultiparseSymbolTable]: Function definition of __U_MULTI_fbubblesort_alloca_true_valid_memsafety_true_termination_i____bswap_64 ('__bswap_64') in bubblesort-alloca_true-valid-memsafety_true-termination.i [2018-03-29 20:13:49,886 INFO L227 ultiparseSymbolTable]: Global variable table: [2018-03-29 20:13:49,886 INFO L230 ultiparseSymbolTable]: Global variable declaration of __U_MULTI_fbubblesort_alloca_true_valid_memsafety_true_termination_i____quad_t in bubblesort-alloca_true-valid-memsafety_true-termination.i [2018-03-29 20:13:49,887 INFO L230 ultiparseSymbolTable]: Global variable declaration of __U_MULTI_fbubblesort_alloca_true_valid_memsafety_true_termination_i____off_t in bubblesort-alloca_true-valid-memsafety_true-termination.i [2018-03-29 20:13:49,887 INFO L230 ultiparseSymbolTable]: Global variable declaration of __U_MULTI_fbubblesort_alloca_true_valid_memsafety_true_termination_i____ino64_t in bubblesort-alloca_true-valid-memsafety_true-termination.i [2018-03-29 20:13:49,887 INFO L230 ultiparseSymbolTable]: Global variable declaration of __U_MULTI_fbubblesort_alloca_true_valid_memsafety_true_termination_i__u_long in bubblesort-alloca_true-valid-memsafety_true-termination.i [2018-03-29 20:13:49,887 INFO L230 ultiparseSymbolTable]: Global variable declaration of __U_MULTI_fbubblesort_alloca_true_valid_memsafety_true_termination_i____u_quad_t in bubblesort-alloca_true-valid-memsafety_true-termination.i [2018-03-29 20:13:49,887 INFO L230 ultiparseSymbolTable]: Global variable declaration of __U_MULTI_fbubblesort_alloca_true_valid_memsafety_true_termination_i__daddr_t in bubblesort-alloca_true-valid-memsafety_true-termination.i [2018-03-29 20:13:49,887 INFO L230 ultiparseSymbolTable]: Global variable declaration of __U_MULTI_fbubblesort_alloca_true_valid_memsafety_true_termination_i____fsid_t in bubblesort-alloca_true-valid-memsafety_true-termination.i [2018-03-29 20:13:49,887 INFO L230 ultiparseSymbolTable]: Global variable declaration of __U_MULTI_fbubblesort_alloca_true_valid_memsafety_true_termination_i__ushort in bubblesort-alloca_true-valid-memsafety_true-termination.i [2018-03-29 20:13:49,887 INFO L230 ultiparseSymbolTable]: Global variable declaration of __U_MULTI_fbubblesort_alloca_true_valid_memsafety_true_termination_i__fd_mask in bubblesort-alloca_true-valid-memsafety_true-termination.i [2018-03-29 20:13:49,887 INFO L230 ultiparseSymbolTable]: Global variable declaration of __U_MULTI_fbubblesort_alloca_true_valid_memsafety_true_termination_i____syscall_slong_t in bubblesort-alloca_true-valid-memsafety_true-termination.i [2018-03-29 20:13:49,888 INFO L230 ultiparseSymbolTable]: Global variable declaration of __U_MULTI_fbubblesort_alloca_true_valid_memsafety_true_termination_i__pthread_rwlockattr_t in bubblesort-alloca_true-valid-memsafety_true-termination.i [2018-03-29 20:13:49,888 INFO L230 ultiparseSymbolTable]: Global variable declaration of __U_MULTI_fbubblesort_alloca_true_valid_memsafety_true_termination_i__pthread_barrier_t in bubblesort-alloca_true-valid-memsafety_true-termination.i [2018-03-29 20:13:49,888 INFO L230 ultiparseSymbolTable]: Global variable declaration of __U_MULTI_fbubblesort_alloca_true_valid_memsafety_true_termination_i__suseconds_t in bubblesort-alloca_true-valid-memsafety_true-termination.i [2018-03-29 20:13:49,888 INFO L230 ultiparseSymbolTable]: Global variable declaration of __U_MULTI_fbubblesort_alloca_true_valid_memsafety_true_termination_i__clock_t in bubblesort-alloca_true-valid-memsafety_true-termination.i [2018-03-29 20:13:49,888 INFO L230 ultiparseSymbolTable]: Global variable declaration of __U_MULTI_fbubblesort_alloca_true_valid_memsafety_true_termination_i____clock_t in bubblesort-alloca_true-valid-memsafety_true-termination.i [2018-03-29 20:13:49,888 INFO L230 ultiparseSymbolTable]: Global variable declaration of __U_MULTI_fbubblesort_alloca_true_valid_memsafety_true_termination_i__clockid_t in bubblesort-alloca_true-valid-memsafety_true-termination.i [2018-03-29 20:13:49,888 INFO L230 ultiparseSymbolTable]: Global variable declaration of __U_MULTI_fbubblesort_alloca_true_valid_memsafety_true_termination_i____key_t in bubblesort-alloca_true-valid-memsafety_true-termination.i [2018-03-29 20:13:49,888 INFO L230 ultiparseSymbolTable]: Global variable declaration of __U_MULTI_fbubblesort_alloca_true_valid_memsafety_true_termination_i____loff_t in bubblesort-alloca_true-valid-memsafety_true-termination.i [2018-03-29 20:13:49,888 INFO L230 ultiparseSymbolTable]: Global variable declaration of __U_MULTI_fbubblesort_alloca_true_valid_memsafety_true_termination_i__u_int32_t in bubblesort-alloca_true-valid-memsafety_true-termination.i [2018-03-29 20:13:49,888 INFO L230 ultiparseSymbolTable]: Global variable declaration of __U_MULTI_fbubblesort_alloca_true_valid_memsafety_true_termination_i____uint8_t in bubblesort-alloca_true-valid-memsafety_true-termination.i [2018-03-29 20:13:49,888 INFO L230 ultiparseSymbolTable]: Global variable declaration of __U_MULTI_fbubblesort_alloca_true_valid_memsafety_true_termination_i__fsid_t in bubblesort-alloca_true-valid-memsafety_true-termination.i [2018-03-29 20:13:49,888 INFO L230 ultiparseSymbolTable]: Global variable declaration of __U_MULTI_fbubblesort_alloca_true_valid_memsafety_true_termination_i____WAIT_STATUS in bubblesort-alloca_true-valid-memsafety_true-termination.i [2018-03-29 20:13:49,888 INFO L230 ultiparseSymbolTable]: Global variable declaration of __U_MULTI_fbubblesort_alloca_true_valid_memsafety_true_termination_i__u_quad_t in bubblesort-alloca_true-valid-memsafety_true-termination.i [2018-03-29 20:13:49,889 INFO L230 ultiparseSymbolTable]: Global variable declaration of __U_MULTI_fbubblesort_alloca_true_valid_memsafety_true_termination_i__pthread_condattr_t in bubblesort-alloca_true-valid-memsafety_true-termination.i [2018-03-29 20:13:49,889 INFO L230 ultiparseSymbolTable]: Global variable declaration of __U_MULTI_fbubblesort_alloca_true_valid_memsafety_true_termination_i____pid_t in bubblesort-alloca_true-valid-memsafety_true-termination.i [2018-03-29 20:13:49,889 INFO L230 ultiparseSymbolTable]: Global variable declaration of __U_MULTI_fbubblesort_alloca_true_valid_memsafety_true_termination_i__int64_t in bubblesort-alloca_true-valid-memsafety_true-termination.i [2018-03-29 20:13:49,889 INFO L230 ultiparseSymbolTable]: Global variable declaration of __U_MULTI_fbubblesort_alloca_true_valid_memsafety_true_termination_i____uint16_t in bubblesort-alloca_true-valid-memsafety_true-termination.i [2018-03-29 20:13:49,889 INFO L230 ultiparseSymbolTable]: Global variable declaration of __U_MULTI_fbubblesort_alloca_true_valid_memsafety_true_termination_i____gid_t in bubblesort-alloca_true-valid-memsafety_true-termination.i [2018-03-29 20:13:49,889 INFO L230 ultiparseSymbolTable]: Global variable declaration of __U_MULTI_fbubblesort_alloca_true_valid_memsafety_true_termination_i____daddr_t in bubblesort-alloca_true-valid-memsafety_true-termination.i [2018-03-29 20:13:49,889 INFO L230 ultiparseSymbolTable]: Global variable declaration of __U_MULTI_fbubblesort_alloca_true_valid_memsafety_true_termination_i____blksize_t in bubblesort-alloca_true-valid-memsafety_true-termination.i [2018-03-29 20:13:49,889 INFO L230 ultiparseSymbolTable]: Global variable declaration of __U_MULTI_fbubblesort_alloca_true_valid_memsafety_true_termination_i____qaddr_t in bubblesort-alloca_true-valid-memsafety_true-termination.i [2018-03-29 20:13:49,889 INFO L230 ultiparseSymbolTable]: Global variable declaration of __U_MULTI_fbubblesort_alloca_true_valid_memsafety_true_termination_i____fd_mask in bubblesort-alloca_true-valid-memsafety_true-termination.i [2018-03-29 20:13:49,889 INFO L230 ultiparseSymbolTable]: Global variable declaration of __U_MULTI_fbubblesort_alloca_true_valid_memsafety_true_termination_i____fsblkcnt_t in bubblesort-alloca_true-valid-memsafety_true-termination.i [2018-03-29 20:13:49,889 INFO L230 ultiparseSymbolTable]: Global variable declaration of __U_MULTI_fbubblesort_alloca_true_valid_memsafety_true_termination_i____syscall_ulong_t in bubblesort-alloca_true-valid-memsafety_true-termination.i [2018-03-29 20:13:49,889 INFO L230 ultiparseSymbolTable]: Global variable declaration of __U_MULTI_fbubblesort_alloca_true_valid_memsafety_true_termination_i__pthread_t in bubblesort-alloca_true-valid-memsafety_true-termination.i [2018-03-29 20:13:49,889 INFO L230 ultiparseSymbolTable]: Global variable declaration of __U_MULTI_fbubblesort_alloca_true_valid_memsafety_true_termination_i____int64_t in bubblesort-alloca_true-valid-memsafety_true-termination.i [2018-03-29 20:13:49,890 INFO L230 ultiparseSymbolTable]: Global variable declaration of __U_MULTI_fbubblesort_alloca_true_valid_memsafety_true_termination_i____id_t in bubblesort-alloca_true-valid-memsafety_true-termination.i [2018-03-29 20:13:49,890 INFO L230 ultiparseSymbolTable]: Global variable declaration of __U_MULTI_fbubblesort_alloca_true_valid_memsafety_true_termination_i__uint in bubblesort-alloca_true-valid-memsafety_true-termination.i [2018-03-29 20:13:49,890 INFO L230 ultiparseSymbolTable]: Global variable declaration of __U_MULTI_fbubblesort_alloca_true_valid_memsafety_true_termination_i__loff_t in bubblesort-alloca_true-valid-memsafety_true-termination.i [2018-03-29 20:13:49,890 INFO L230 ultiparseSymbolTable]: Global variable declaration of __U_MULTI_fbubblesort_alloca_true_valid_memsafety_true_termination_i__pthread_rwlock_t in bubblesort-alloca_true-valid-memsafety_true-termination.i [2018-03-29 20:13:49,890 INFO L230 ultiparseSymbolTable]: Global variable declaration of __U_MULTI_fbubblesort_alloca_true_valid_memsafety_true_termination_i____uid_t in bubblesort-alloca_true-valid-memsafety_true-termination.i [2018-03-29 20:13:49,890 INFO L230 ultiparseSymbolTable]: Global variable declaration of __U_MULTI_fbubblesort_alloca_true_valid_memsafety_true_termination_i__pthread_key_t in bubblesort-alloca_true-valid-memsafety_true-termination.i [2018-03-29 20:13:49,890 INFO L230 ultiparseSymbolTable]: Global variable declaration of __U_MULTI_fbubblesort_alloca_true_valid_memsafety_true_termination_i__nlink_t in bubblesort-alloca_true-valid-memsafety_true-termination.i [2018-03-29 20:13:49,890 INFO L230 ultiparseSymbolTable]: Global variable declaration of __U_MULTI_fbubblesort_alloca_true_valid_memsafety_true_termination_i__u_int8_t in bubblesort-alloca_true-valid-memsafety_true-termination.i [2018-03-29 20:13:49,890 INFO L230 ultiparseSymbolTable]: Global variable declaration of __U_MULTI_fbubblesort_alloca_true_valid_memsafety_true_termination_i____u_int in bubblesort-alloca_true-valid-memsafety_true-termination.i [2018-03-29 20:13:49,890 INFO L230 ultiparseSymbolTable]: Global variable declaration of __U_MULTI_fbubblesort_alloca_true_valid_memsafety_true_termination_i____fsword_t in bubblesort-alloca_true-valid-memsafety_true-termination.i [2018-03-29 20:13:49,890 INFO L230 ultiparseSymbolTable]: Global variable declaration of __U_MULTI_fbubblesort_alloca_true_valid_memsafety_true_termination_i____uint64_t in bubblesort-alloca_true-valid-memsafety_true-termination.i [2018-03-29 20:13:49,890 INFO L230 ultiparseSymbolTable]: Global variable declaration of __U_MULTI_fbubblesort_alloca_true_valid_memsafety_true_termination_i____sig_atomic_t in bubblesort-alloca_true-valid-memsafety_true-termination.i [2018-03-29 20:13:49,890 INFO L230 ultiparseSymbolTable]: Global variable declaration of __U_MULTI_fbubblesort_alloca_true_valid_memsafety_true_termination_i____useconds_t in bubblesort-alloca_true-valid-memsafety_true-termination.i [2018-03-29 20:13:49,891 INFO L230 ultiparseSymbolTable]: Global variable declaration of __U_MULTI_fbubblesort_alloca_true_valid_memsafety_true_termination_i__pthread_barrierattr_t in bubblesort-alloca_true-valid-memsafety_true-termination.i [2018-03-29 20:13:49,891 INFO L230 ultiparseSymbolTable]: Global variable declaration of __U_MULTI_fbubblesort_alloca_true_valid_memsafety_true_termination_i____blkcnt_t in bubblesort-alloca_true-valid-memsafety_true-termination.i [2018-03-29 20:13:49,891 INFO L230 ultiparseSymbolTable]: Global variable declaration of __U_MULTI_fbubblesort_alloca_true_valid_memsafety_true_termination_i__time_t in bubblesort-alloca_true-valid-memsafety_true-termination.i [2018-03-29 20:13:49,891 INFO L230 ultiparseSymbolTable]: Global variable declaration of __U_MULTI_fbubblesort_alloca_true_valid_memsafety_true_termination_i__ssize_t in bubblesort-alloca_true-valid-memsafety_true-termination.i [2018-03-29 20:13:49,891 INFO L230 ultiparseSymbolTable]: Global variable declaration of __U_MULTI_fbubblesort_alloca_true_valid_memsafety_true_termination_i__dev_t in bubblesort-alloca_true-valid-memsafety_true-termination.i [2018-03-29 20:13:49,891 INFO L230 ultiparseSymbolTable]: Global variable declaration of __U_MULTI_fbubblesort_alloca_true_valid_memsafety_true_termination_i__id_t in bubblesort-alloca_true-valid-memsafety_true-termination.i [2018-03-29 20:13:49,891 INFO L230 ultiparseSymbolTable]: Global variable declaration of __U_MULTI_fbubblesort_alloca_true_valid_memsafety_true_termination_i__sigset_t in bubblesort-alloca_true-valid-memsafety_true-termination.i [2018-03-29 20:13:49,891 INFO L230 ultiparseSymbolTable]: Global variable declaration of __U_MULTI_fbubblesort_alloca_true_valid_memsafety_true_termination_i____ssize_t in bubblesort-alloca_true-valid-memsafety_true-termination.i [2018-03-29 20:13:49,891 INFO L230 ultiparseSymbolTable]: Global variable declaration of __U_MULTI_fbubblesort_alloca_true_valid_memsafety_true_termination_i__int8_t in bubblesort-alloca_true-valid-memsafety_true-termination.i [2018-03-29 20:13:49,891 INFO L230 ultiparseSymbolTable]: Global variable declaration of __U_MULTI_fbubblesort_alloca_true_valid_memsafety_true_termination_i__pid_t in bubblesort-alloca_true-valid-memsafety_true-termination.i [2018-03-29 20:13:49,891 INFO L230 ultiparseSymbolTable]: Global variable declaration of __U_MULTI_fbubblesort_alloca_true_valid_memsafety_true_termination_i__fsfilcnt_t in bubblesort-alloca_true-valid-memsafety_true-termination.i [2018-03-29 20:13:49,892 INFO L230 ultiparseSymbolTable]: Global variable declaration of __U_MULTI_fbubblesort_alloca_true_valid_memsafety_true_termination_i__ino_t in bubblesort-alloca_true-valid-memsafety_true-termination.i [2018-03-29 20:13:49,892 INFO L230 ultiparseSymbolTable]: Global variable declaration of __U_MULTI_fbubblesort_alloca_true_valid_memsafety_true_termination_i____time_t in bubblesort-alloca_true-valid-memsafety_true-termination.i [2018-03-29 20:13:49,892 INFO L230 ultiparseSymbolTable]: Global variable declaration of __U_MULTI_fbubblesort_alloca_true_valid_memsafety_true_termination_i____intptr_t in bubblesort-alloca_true-valid-memsafety_true-termination.i [2018-03-29 20:13:49,892 INFO L230 ultiparseSymbolTable]: Global variable declaration of __U_MULTI_fbubblesort_alloca_true_valid_memsafety_true_termination_i__u_int64_t in bubblesort-alloca_true-valid-memsafety_true-termination.i [2018-03-29 20:13:49,892 INFO L230 ultiparseSymbolTable]: Global variable declaration of __U_MULTI_fbubblesort_alloca_true_valid_memsafety_true_termination_i__size_t in bubblesort-alloca_true-valid-memsafety_true-termination.i [2018-03-29 20:13:49,892 INFO L230 ultiparseSymbolTable]: Global variable declaration of __U_MULTI_fbubblesort_alloca_true_valid_memsafety_true_termination_i__ldiv_t in bubblesort-alloca_true-valid-memsafety_true-termination.i [2018-03-29 20:13:49,892 INFO L230 ultiparseSymbolTable]: Global variable declaration of __U_MULTI_fbubblesort_alloca_true_valid_memsafety_true_termination_i__gid_t in bubblesort-alloca_true-valid-memsafety_true-termination.i [2018-03-29 20:13:49,892 INFO L230 ultiparseSymbolTable]: Global variable declaration of __U_MULTI_fbubblesort_alloca_true_valid_memsafety_true_termination_i____blkcnt64_t in bubblesort-alloca_true-valid-memsafety_true-termination.i [2018-03-29 20:13:49,892 INFO L230 ultiparseSymbolTable]: Global variable declaration of __U_MULTI_fbubblesort_alloca_true_valid_memsafety_true_termination_i____fsfilcnt64_t in bubblesort-alloca_true-valid-memsafety_true-termination.i [2018-03-29 20:13:49,892 INFO L230 ultiparseSymbolTable]: Global variable declaration of __U_MULTI_fbubblesort_alloca_true_valid_memsafety_true_termination_i__key_t in bubblesort-alloca_true-valid-memsafety_true-termination.i [2018-03-29 20:13:49,893 INFO L230 ultiparseSymbolTable]: Global variable declaration of __U_MULTI_fbubblesort_alloca_true_valid_memsafety_true_termination_i__pthread_mutex_t in bubblesort-alloca_true-valid-memsafety_true-termination.i [2018-03-29 20:13:49,893 INFO L230 ultiparseSymbolTable]: Global variable declaration of __U_MULTI_fbubblesort_alloca_true_valid_memsafety_true_termination_i____nlink_t in bubblesort-alloca_true-valid-memsafety_true-termination.i [2018-03-29 20:13:49,893 INFO L230 ultiparseSymbolTable]: Global variable declaration of __U_MULTI_fbubblesort_alloca_true_valid_memsafety_true_termination_i____socklen_t in bubblesort-alloca_true-valid-memsafety_true-termination.i [2018-03-29 20:13:49,893 INFO L230 ultiparseSymbolTable]: Global variable declaration of __U_MULTI_fbubblesort_alloca_true_valid_memsafety_true_termination_i__int32_t in bubblesort-alloca_true-valid-memsafety_true-termination.i [2018-03-29 20:13:49,893 INFO L230 ultiparseSymbolTable]: Global variable declaration of __U_MULTI_fbubblesort_alloca_true_valid_memsafety_true_termination_i__register_t in bubblesort-alloca_true-valid-memsafety_true-termination.i [2018-03-29 20:13:49,893 INFO L230 ultiparseSymbolTable]: Global variable declaration of __U_MULTI_fbubblesort_alloca_true_valid_memsafety_true_termination_i____u_short in bubblesort-alloca_true-valid-memsafety_true-termination.i [2018-03-29 20:13:49,893 INFO L230 ultiparseSymbolTable]: Global variable declaration of __U_MULTI_fbubblesort_alloca_true_valid_memsafety_true_termination_i__timer_t in bubblesort-alloca_true-valid-memsafety_true-termination.i [2018-03-29 20:13:49,893 INFO L230 ultiparseSymbolTable]: Global variable declaration of __U_MULTI_fbubblesort_alloca_true_valid_memsafety_true_termination_i____int8_t in bubblesort-alloca_true-valid-memsafety_true-termination.i [2018-03-29 20:13:49,893 INFO L230 ultiparseSymbolTable]: Global variable declaration of __U_MULTI_fbubblesort_alloca_true_valid_memsafety_true_termination_i____rlim_t in bubblesort-alloca_true-valid-memsafety_true-termination.i [2018-03-29 20:13:49,893 INFO L230 ultiparseSymbolTable]: Global variable declaration of __U_MULTI_fbubblesort_alloca_true_valid_memsafety_true_termination_i____fsblkcnt64_t in bubblesort-alloca_true-valid-memsafety_true-termination.i [2018-03-29 20:13:49,894 INFO L230 ultiparseSymbolTable]: Global variable declaration of __U_MULTI_fbubblesort_alloca_true_valid_memsafety_true_termination_i____suseconds_t in bubblesort-alloca_true-valid-memsafety_true-termination.i [2018-03-29 20:13:49,894 INFO L230 ultiparseSymbolTable]: Global variable declaration of __U_MULTI_fbubblesort_alloca_true_valid_memsafety_true_termination_i____int32_t in bubblesort-alloca_true-valid-memsafety_true-termination.i [2018-03-29 20:13:49,894 INFO L230 ultiparseSymbolTable]: Global variable declaration of __U_MULTI_fbubblesort_alloca_true_valid_memsafety_true_termination_i____fsfilcnt_t in bubblesort-alloca_true-valid-memsafety_true-termination.i [2018-03-29 20:13:49,894 INFO L230 ultiparseSymbolTable]: Global variable declaration of __U_MULTI_fbubblesort_alloca_true_valid_memsafety_true_termination_i__pthread_mutexattr_t in bubblesort-alloca_true-valid-memsafety_true-termination.i [2018-03-29 20:13:49,894 INFO L230 ultiparseSymbolTable]: Global variable declaration of __U_MULTI_fbubblesort_alloca_true_valid_memsafety_true_termination_i__fsblkcnt_t in bubblesort-alloca_true-valid-memsafety_true-termination.i [2018-03-29 20:13:49,894 INFO L230 ultiparseSymbolTable]: Global variable declaration of __U_MULTI_fbubblesort_alloca_true_valid_memsafety_true_termination_i____timer_t in bubblesort-alloca_true-valid-memsafety_true-termination.i [2018-03-29 20:13:49,894 INFO L230 ultiparseSymbolTable]: Global variable declaration of __U_MULTI_fbubblesort_alloca_true_valid_memsafety_true_termination_i____rlim64_t in bubblesort-alloca_true-valid-memsafety_true-termination.i [2018-03-29 20:13:49,894 INFO L230 ultiparseSymbolTable]: Global variable declaration of __U_MULTI_fbubblesort_alloca_true_valid_memsafety_true_termination_i__u_int in bubblesort-alloca_true-valid-memsafety_true-termination.i [2018-03-29 20:13:49,894 INFO L230 ultiparseSymbolTable]: Global variable declaration of __U_MULTI_fbubblesort_alloca_true_valid_memsafety_true_termination_i____dev_t in bubblesort-alloca_true-valid-memsafety_true-termination.i [2018-03-29 20:13:49,894 INFO L230 ultiparseSymbolTable]: Global variable declaration of __U_MULTI_fbubblesort_alloca_true_valid_memsafety_true_termination_i__int16_t in bubblesort-alloca_true-valid-memsafety_true-termination.i [2018-03-29 20:13:49,895 INFO L230 ultiparseSymbolTable]: Global variable declaration of __U_MULTI_fbubblesort_alloca_true_valid_memsafety_true_termination_i____off64_t in bubblesort-alloca_true-valid-memsafety_true-termination.i [2018-03-29 20:13:49,895 INFO L230 ultiparseSymbolTable]: Global variable declaration of __U_MULTI_fbubblesort_alloca_true_valid_memsafety_true_termination_i____u_char in bubblesort-alloca_true-valid-memsafety_true-termination.i [2018-03-29 20:13:49,895 INFO L230 ultiparseSymbolTable]: Global variable declaration of __U_MULTI_fbubblesort_alloca_true_valid_memsafety_true_termination_i__uid_t in bubblesort-alloca_true-valid-memsafety_true-termination.i [2018-03-29 20:13:49,895 INFO L230 ultiparseSymbolTable]: Global variable declaration of __U_MULTI_fbubblesort_alloca_true_valid_memsafety_true_termination_i__wchar_t in bubblesort-alloca_true-valid-memsafety_true-termination.i [2018-03-29 20:13:49,895 INFO L230 ultiparseSymbolTable]: Global variable declaration of __U_MULTI_fbubblesort_alloca_true_valid_memsafety_true_termination_i____caddr_t in bubblesort-alloca_true-valid-memsafety_true-termination.i [2018-03-29 20:13:49,895 INFO L230 ultiparseSymbolTable]: Global variable declaration of __U_MULTI_fbubblesort_alloca_true_valid_memsafety_true_termination_i__fd_set in bubblesort-alloca_true-valid-memsafety_true-termination.i [2018-03-29 20:13:49,895 INFO L230 ultiparseSymbolTable]: Global variable declaration of __U_MULTI_fbubblesort_alloca_true_valid_memsafety_true_termination_i__lldiv_t in bubblesort-alloca_true-valid-memsafety_true-termination.i [2018-03-29 20:13:49,895 INFO L230 ultiparseSymbolTable]: Global variable declaration of __U_MULTI_fbubblesort_alloca_true_valid_memsafety_true_termination_i__mode_t in bubblesort-alloca_true-valid-memsafety_true-termination.i [2018-03-29 20:13:49,895 INFO L230 ultiparseSymbolTable]: Global variable declaration of __U_MULTI_fbubblesort_alloca_true_valid_memsafety_true_termination_i__pthread_attr_t in bubblesort-alloca_true-valid-memsafety_true-termination.i [2018-03-29 20:13:49,895 INFO L230 ultiparseSymbolTable]: Global variable declaration of __U_MULTI_fbubblesort_alloca_true_valid_memsafety_true_termination_i__caddr_t in bubblesort-alloca_true-valid-memsafety_true-termination.i [2018-03-29 20:13:49,896 INFO L230 ultiparseSymbolTable]: Global variable declaration of __U_MULTI_fbubblesort_alloca_true_valid_memsafety_true_termination_i__quad_t in bubblesort-alloca_true-valid-memsafety_true-termination.i [2018-03-29 20:13:49,896 INFO L230 ultiparseSymbolTable]: Global variable declaration of __U_MULTI_fbubblesort_alloca_true_valid_memsafety_true_termination_i__blkcnt_t in bubblesort-alloca_true-valid-memsafety_true-termination.i [2018-03-29 20:13:49,896 INFO L230 ultiparseSymbolTable]: Global variable declaration of __U_MULTI_fbubblesort_alloca_true_valid_memsafety_true_termination_i____pthread_list_t in bubblesort-alloca_true-valid-memsafety_true-termination.i [2018-03-29 20:13:49,896 INFO L230 ultiparseSymbolTable]: Global variable declaration of __U_MULTI_fbubblesort_alloca_true_valid_memsafety_true_termination_i____clockid_t in bubblesort-alloca_true-valid-memsafety_true-termination.i [2018-03-29 20:13:49,896 INFO L230 ultiparseSymbolTable]: Global variable declaration of __U_MULTI_fbubblesort_alloca_true_valid_memsafety_true_termination_i____u_long in bubblesort-alloca_true-valid-memsafety_true-termination.i [2018-03-29 20:13:49,896 INFO L230 ultiparseSymbolTable]: Global variable declaration of __U_MULTI_fbubblesort_alloca_true_valid_memsafety_true_termination_i__div_t in bubblesort-alloca_true-valid-memsafety_true-termination.i [2018-03-29 20:13:49,896 INFO L230 ultiparseSymbolTable]: Global variable declaration of __U_MULTI_fbubblesort_alloca_true_valid_memsafety_true_termination_i__u_char in bubblesort-alloca_true-valid-memsafety_true-termination.i [2018-03-29 20:13:49,896 INFO L230 ultiparseSymbolTable]: Global variable declaration of __U_MULTI_fbubblesort_alloca_true_valid_memsafety_true_termination_i__off_t in bubblesort-alloca_true-valid-memsafety_true-termination.i [2018-03-29 20:13:49,897 INFO L230 ultiparseSymbolTable]: Global variable declaration of __U_MULTI_fbubblesort_alloca_true_valid_memsafety_true_termination_i__ulong in bubblesort-alloca_true-valid-memsafety_true-termination.i [2018-03-29 20:13:49,897 INFO L230 ultiparseSymbolTable]: Global variable declaration of __U_MULTI_fbubblesort_alloca_true_valid_memsafety_true_termination_i__pthread_cond_t in bubblesort-alloca_true-valid-memsafety_true-termination.i [2018-03-29 20:13:49,897 INFO L230 ultiparseSymbolTable]: Global variable declaration of __U_MULTI_fbubblesort_alloca_true_valid_memsafety_true_termination_i__u_int16_t in bubblesort-alloca_true-valid-memsafety_true-termination.i [2018-03-29 20:13:49,897 INFO L230 ultiparseSymbolTable]: Global variable declaration of __U_MULTI_fbubblesort_alloca_true_valid_memsafety_true_termination_i____int16_t in bubblesort-alloca_true-valid-memsafety_true-termination.i [2018-03-29 20:13:49,897 INFO L230 ultiparseSymbolTable]: Global variable declaration of __U_MULTI_fbubblesort_alloca_true_valid_memsafety_true_termination_i____ino_t in bubblesort-alloca_true-valid-memsafety_true-termination.i [2018-03-29 20:13:49,897 INFO L230 ultiparseSymbolTable]: Global variable declaration of __U_MULTI_fbubblesort_alloca_true_valid_memsafety_true_termination_i__u_short in bubblesort-alloca_true-valid-memsafety_true-termination.i [2018-03-29 20:13:49,897 INFO L230 ultiparseSymbolTable]: Global variable declaration of __U_MULTI_fbubblesort_alloca_true_valid_memsafety_true_termination_i____uint32_t in bubblesort-alloca_true-valid-memsafety_true-termination.i [2018-03-29 20:13:49,897 INFO L230 ultiparseSymbolTable]: Global variable declaration of __U_MULTI_fbubblesort_alloca_true_valid_memsafety_true_termination_i__pthread_once_t in bubblesort-alloca_true-valid-memsafety_true-termination.i [2018-03-29 20:13:49,897 INFO L230 ultiparseSymbolTable]: Global variable declaration of __U_MULTI_fbubblesort_alloca_true_valid_memsafety_true_termination_i____sigset_t in bubblesort-alloca_true-valid-memsafety_true-termination.i [2018-03-29 20:13:49,898 INFO L230 ultiparseSymbolTable]: Global variable declaration of __U_MULTI_fbubblesort_alloca_true_valid_memsafety_true_termination_i__pthread_spinlock_t in bubblesort-alloca_true-valid-memsafety_true-termination.i [2018-03-29 20:13:49,898 INFO L230 ultiparseSymbolTable]: Global variable declaration of __U_MULTI_fbubblesort_alloca_true_valid_memsafety_true_termination_i____mode_t in bubblesort-alloca_true-valid-memsafety_true-termination.i [2018-03-29 20:13:49,898 INFO L230 ultiparseSymbolTable]: Global variable declaration of __U_MULTI_fbubblesort_alloca_true_valid_memsafety_true_termination_i__blksize_t in bubblesort-alloca_true-valid-memsafety_true-termination.i [2018-03-29 20:13:49,914 INFO L330 CDTParser]: Deleted temporary CDT project at /storage/ultimate/releaseScripts/default/UAutomizer-linux/data/FLAG43ee9272a [2018-03-29 20:13:49,918 INFO L304 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2018-03-29 20:13:49,920 INFO L131 ToolchainWalker]: Walking toolchain with 4 elements. [2018-03-29 20:13:49,921 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2018-03-29 20:13:49,921 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2018-03-29 20:13:49,926 INFO L276 PluginConnector]: CACSL2BoogieTranslator initialized [2018-03-29 20:13:49,927 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 29.03 08:13:49" (1/1) ... [2018-03-29 20:13:49,929 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@27d4508c and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.03 08:13:49, skipping insertion in model container [2018-03-29 20:13:49,930 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 29.03 08:13:49" (1/1) ... [2018-03-29 20:13:49,943 INFO L167 Dispatcher]: Using SV-COMP mode [2018-03-29 20:13:49,972 INFO L167 Dispatcher]: Using SV-COMP mode [2018-03-29 20:13:50,141 INFO L175 PostProcessor]: Settings: Checked method=main [2018-03-29 20:13:50,186 INFO L175 PostProcessor]: Settings: Checked method=main [2018-03-29 20:13:50,191 INFO L100 SccComputation]: Graph consists of 0 InCaSumBalls and 112 non ball SCCs. Number of states in SCCs 112. [2018-03-29 20:13:50,232 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.03 08:13:50 WrapperNode [2018-03-29 20:13:50,233 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2018-03-29 20:13:50,233 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2018-03-29 20:13:50,233 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2018-03-29 20:13:50,233 INFO L276 PluginConnector]: Boogie Preprocessor initialized [2018-03-29 20:13:50,243 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.03 08:13:50" (1/1) ... [2018-03-29 20:13:50,243 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.03 08:13:50" (1/1) ... [2018-03-29 20:13:50,259 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.03 08:13:50" (1/1) ... [2018-03-29 20:13:50,260 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.03 08:13:50" (1/1) ... [2018-03-29 20:13:50,271 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.03 08:13:50" (1/1) ... [2018-03-29 20:13:50,277 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.03 08:13:50" (1/1) ... [2018-03-29 20:13:50,280 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.03 08:13:50" (1/1) ... [2018-03-29 20:13:50,285 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2018-03-29 20:13:50,285 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2018-03-29 20:13:50,286 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2018-03-29 20:13:50,286 INFO L276 PluginConnector]: RCFGBuilder initialized [2018-03-29 20:13:50,287 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.03 08:13:50" (1/1) ... No working directory specified, using /storage/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2018-03-29 20:13:50,425 INFO L136 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2018-03-29 20:13:50,426 INFO L136 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2018-03-29 20:13:50,426 INFO L136 BoogieDeclarations]: Found implementation of procedure __U_MULTI_fbubblesort_alloca_true_valid_memsafety_true_termination_i____bswap_32 [2018-03-29 20:13:50,426 INFO L136 BoogieDeclarations]: Found implementation of procedure __U_MULTI_fbubblesort_alloca_true_valid_memsafety_true_termination_i____bswap_64 [2018-03-29 20:13:50,426 INFO L136 BoogieDeclarations]: Found implementation of procedure __U_MULTI_fbubblesort_alloca_true_valid_memsafety_true_termination_i__bubbleSort [2018-03-29 20:13:50,426 INFO L136 BoogieDeclarations]: Found implementation of procedure main [2018-03-29 20:13:50,427 INFO L128 BoogieDeclarations]: Found specification of procedure __U_MULTI_fbubblesort_alloca_true_valid_memsafety_true_termination_i____bswap_32 [2018-03-29 20:13:50,427 INFO L128 BoogieDeclarations]: Found specification of procedure __U_MULTI_fbubblesort_alloca_true_valid_memsafety_true_termination_i____bswap_64 [2018-03-29 20:13:50,427 INFO L128 BoogieDeclarations]: Found specification of procedure __ctype_get_mb_cur_max [2018-03-29 20:13:50,427 INFO L128 BoogieDeclarations]: Found specification of procedure atof [2018-03-29 20:13:50,427 INFO L128 BoogieDeclarations]: Found specification of procedure atoi [2018-03-29 20:13:50,427 INFO L128 BoogieDeclarations]: Found specification of procedure atol [2018-03-29 20:13:50,427 INFO L128 BoogieDeclarations]: Found specification of procedure atoll [2018-03-29 20:13:50,428 INFO L128 BoogieDeclarations]: Found specification of procedure strtod [2018-03-29 20:13:50,428 INFO L128 BoogieDeclarations]: Found specification of procedure strtof [2018-03-29 20:13:50,428 INFO L128 BoogieDeclarations]: Found specification of procedure strtold [2018-03-29 20:13:50,428 INFO L128 BoogieDeclarations]: Found specification of procedure strtol [2018-03-29 20:13:50,428 INFO L128 BoogieDeclarations]: Found specification of procedure strtoul [2018-03-29 20:13:50,428 INFO L128 BoogieDeclarations]: Found specification of procedure strtoq [2018-03-29 20:13:50,429 INFO L128 BoogieDeclarations]: Found specification of procedure strtouq [2018-03-29 20:13:50,429 INFO L128 BoogieDeclarations]: Found specification of procedure strtoll [2018-03-29 20:13:50,429 INFO L128 BoogieDeclarations]: Found specification of procedure strtoull [2018-03-29 20:13:50,429 INFO L128 BoogieDeclarations]: Found specification of procedure l64a [2018-03-29 20:13:50,429 INFO L128 BoogieDeclarations]: Found specification of procedure a64l [2018-03-29 20:13:50,429 INFO L128 BoogieDeclarations]: Found specification of procedure select [2018-03-29 20:13:50,429 INFO L128 BoogieDeclarations]: Found specification of procedure pselect [2018-03-29 20:13:50,430 INFO L128 BoogieDeclarations]: Found specification of procedure gnu_dev_major [2018-03-29 20:13:50,430 INFO L128 BoogieDeclarations]: Found specification of procedure gnu_dev_minor [2018-03-29 20:13:50,430 INFO L128 BoogieDeclarations]: Found specification of procedure gnu_dev_makedev [2018-03-29 20:13:50,430 INFO L128 BoogieDeclarations]: Found specification of procedure random [2018-03-29 20:13:50,430 INFO L128 BoogieDeclarations]: Found specification of procedure srandom [2018-03-29 20:13:50,430 INFO L128 BoogieDeclarations]: Found specification of procedure initstate [2018-03-29 20:13:50,430 INFO L128 BoogieDeclarations]: Found specification of procedure setstate [2018-03-29 20:13:50,431 INFO L128 BoogieDeclarations]: Found specification of procedure random_r [2018-03-29 20:13:50,431 INFO L128 BoogieDeclarations]: Found specification of procedure srandom_r [2018-03-29 20:13:50,431 INFO L128 BoogieDeclarations]: Found specification of procedure initstate_r [2018-03-29 20:13:50,431 INFO L128 BoogieDeclarations]: Found specification of procedure setstate_r [2018-03-29 20:13:50,431 INFO L128 BoogieDeclarations]: Found specification of procedure rand [2018-03-29 20:13:50,431 INFO L128 BoogieDeclarations]: Found specification of procedure srand [2018-03-29 20:13:50,431 INFO L128 BoogieDeclarations]: Found specification of procedure rand_r [2018-03-29 20:13:50,431 INFO L128 BoogieDeclarations]: Found specification of procedure drand48 [2018-03-29 20:13:50,432 INFO L128 BoogieDeclarations]: Found specification of procedure erand48 [2018-03-29 20:13:50,432 INFO L128 BoogieDeclarations]: Found specification of procedure lrand48 [2018-03-29 20:13:50,432 INFO L128 BoogieDeclarations]: Found specification of procedure nrand48 [2018-03-29 20:13:50,432 INFO L128 BoogieDeclarations]: Found specification of procedure mrand48 [2018-03-29 20:13:50,432 INFO L128 BoogieDeclarations]: Found specification of procedure jrand48 [2018-03-29 20:13:50,432 INFO L128 BoogieDeclarations]: Found specification of procedure srand48 [2018-03-29 20:13:50,432 INFO L128 BoogieDeclarations]: Found specification of procedure seed48 [2018-03-29 20:13:50,432 INFO L128 BoogieDeclarations]: Found specification of procedure lcong48 [2018-03-29 20:13:50,433 INFO L128 BoogieDeclarations]: Found specification of procedure drand48_r [2018-03-29 20:13:50,433 INFO L128 BoogieDeclarations]: Found specification of procedure erand48_r [2018-03-29 20:13:50,433 INFO L128 BoogieDeclarations]: Found specification of procedure lrand48_r [2018-03-29 20:13:50,433 INFO L128 BoogieDeclarations]: Found specification of procedure nrand48_r [2018-03-29 20:13:50,433 INFO L128 BoogieDeclarations]: Found specification of procedure mrand48_r [2018-03-29 20:13:50,433 INFO L128 BoogieDeclarations]: Found specification of procedure jrand48_r [2018-03-29 20:13:50,433 INFO L128 BoogieDeclarations]: Found specification of procedure srand48_r [2018-03-29 20:13:50,434 INFO L128 BoogieDeclarations]: Found specification of procedure seed48_r [2018-03-29 20:13:50,434 INFO L128 BoogieDeclarations]: Found specification of procedure lcong48_r [2018-03-29 20:13:50,434 INFO L128 BoogieDeclarations]: Found specification of procedure malloc [2018-03-29 20:13:50,434 INFO L128 BoogieDeclarations]: Found specification of procedure calloc [2018-03-29 20:13:50,434 INFO L128 BoogieDeclarations]: Found specification of procedure realloc [2018-03-29 20:13:50,434 INFO L128 BoogieDeclarations]: Found specification of procedure free [2018-03-29 20:13:50,434 INFO L128 BoogieDeclarations]: Found specification of procedure cfree [2018-03-29 20:13:50,434 INFO L128 BoogieDeclarations]: Found specification of procedure alloca [2018-03-29 20:13:50,435 INFO L128 BoogieDeclarations]: Found specification of procedure valloc [2018-03-29 20:13:50,435 INFO L128 BoogieDeclarations]: Found specification of procedure posix_memalign [2018-03-29 20:13:50,435 INFO L128 BoogieDeclarations]: Found specification of procedure abort [2018-03-29 20:13:50,435 INFO L128 BoogieDeclarations]: Found specification of procedure atexit [2018-03-29 20:13:50,435 INFO L128 BoogieDeclarations]: Found specification of procedure on_exit [2018-03-29 20:13:50,435 INFO L128 BoogieDeclarations]: Found specification of procedure exit [2018-03-29 20:13:50,435 INFO L128 BoogieDeclarations]: Found specification of procedure _Exit [2018-03-29 20:13:50,435 INFO L128 BoogieDeclarations]: Found specification of procedure getenv [2018-03-29 20:13:50,436 INFO L128 BoogieDeclarations]: Found specification of procedure putenv [2018-03-29 20:13:50,436 INFO L128 BoogieDeclarations]: Found specification of procedure setenv [2018-03-29 20:13:50,436 INFO L128 BoogieDeclarations]: Found specification of procedure unsetenv [2018-03-29 20:13:50,436 INFO L128 BoogieDeclarations]: Found specification of procedure clearenv [2018-03-29 20:13:50,436 INFO L128 BoogieDeclarations]: Found specification of procedure mktemp [2018-03-29 20:13:50,436 INFO L128 BoogieDeclarations]: Found specification of procedure mkstemp [2018-03-29 20:13:50,436 INFO L128 BoogieDeclarations]: Found specification of procedure mkstemps [2018-03-29 20:13:50,436 INFO L128 BoogieDeclarations]: Found specification of procedure mkdtemp [2018-03-29 20:13:50,437 INFO L128 BoogieDeclarations]: Found specification of procedure system [2018-03-29 20:13:50,437 INFO L128 BoogieDeclarations]: Found specification of procedure realpath [2018-03-29 20:13:50,437 INFO L128 BoogieDeclarations]: Found specification of procedure bsearch [2018-03-29 20:13:50,437 INFO L128 BoogieDeclarations]: Found specification of procedure qsort [2018-03-29 20:13:50,437 INFO L128 BoogieDeclarations]: Found specification of procedure abs [2018-03-29 20:13:50,437 INFO L128 BoogieDeclarations]: Found specification of procedure labs [2018-03-29 20:13:50,437 INFO L128 BoogieDeclarations]: Found specification of procedure llabs [2018-03-29 20:13:50,437 INFO L128 BoogieDeclarations]: Found specification of procedure div [2018-03-29 20:13:50,438 INFO L128 BoogieDeclarations]: Found specification of procedure ldiv [2018-03-29 20:13:50,438 INFO L128 BoogieDeclarations]: Found specification of procedure lldiv [2018-03-29 20:13:50,438 INFO L128 BoogieDeclarations]: Found specification of procedure ecvt [2018-03-29 20:13:50,438 INFO L128 BoogieDeclarations]: Found specification of procedure fcvt [2018-03-29 20:13:50,438 INFO L128 BoogieDeclarations]: Found specification of procedure gcvt [2018-03-29 20:13:50,438 INFO L128 BoogieDeclarations]: Found specification of procedure qecvt [2018-03-29 20:13:50,438 INFO L128 BoogieDeclarations]: Found specification of procedure qfcvt [2018-03-29 20:13:50,439 INFO L128 BoogieDeclarations]: Found specification of procedure qgcvt [2018-03-29 20:13:50,439 INFO L128 BoogieDeclarations]: Found specification of procedure ecvt_r [2018-03-29 20:13:50,439 INFO L128 BoogieDeclarations]: Found specification of procedure fcvt_r [2018-03-29 20:13:50,439 INFO L128 BoogieDeclarations]: Found specification of procedure qecvt_r [2018-03-29 20:13:50,439 INFO L128 BoogieDeclarations]: Found specification of procedure qfcvt_r [2018-03-29 20:13:50,439 INFO L128 BoogieDeclarations]: Found specification of procedure mblen [2018-03-29 20:13:50,439 INFO L128 BoogieDeclarations]: Found specification of procedure mbtowc [2018-03-29 20:13:50,439 INFO L128 BoogieDeclarations]: Found specification of procedure wctomb [2018-03-29 20:13:50,440 INFO L128 BoogieDeclarations]: Found specification of procedure mbstowcs [2018-03-29 20:13:50,440 INFO L128 BoogieDeclarations]: Found specification of procedure wcstombs [2018-03-29 20:13:50,440 INFO L128 BoogieDeclarations]: Found specification of procedure rpmatch [2018-03-29 20:13:50,440 INFO L128 BoogieDeclarations]: Found specification of procedure getsubopt [2018-03-29 20:13:50,440 INFO L128 BoogieDeclarations]: Found specification of procedure getloadavg [2018-03-29 20:13:50,440 INFO L128 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_int [2018-03-29 20:13:50,440 INFO L128 BoogieDeclarations]: Found specification of procedure __U_MULTI_fbubblesort_alloca_true_valid_memsafety_true_termination_i__bubbleSort [2018-03-29 20:13:50,441 INFO L128 BoogieDeclarations]: Found specification of procedure read~int [2018-03-29 20:13:50,441 INFO L128 BoogieDeclarations]: Found specification of procedure write~int [2018-03-29 20:13:50,441 INFO L128 BoogieDeclarations]: Found specification of procedure main [2018-03-29 20:13:50,441 INFO L128 BoogieDeclarations]: Found specification of procedure #Ultimate.alloc [2018-03-29 20:13:50,441 INFO L128 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2018-03-29 20:13:50,441 INFO L128 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2018-03-29 20:13:50,441 INFO L128 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2018-03-29 20:13:50,441 INFO L128 BoogieDeclarations]: Found specification of procedure write~unchecked~int [2018-03-29 20:13:50,783 INFO L259 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2018-03-29 20:13:50,784 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 29.03 08:13:50 BoogieIcfgContainer [2018-03-29 20:13:50,784 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2018-03-29 20:13:50,785 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2018-03-29 20:13:50,785 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2018-03-29 20:13:50,788 INFO L276 PluginConnector]: TraceAbstraction initialized [2018-03-29 20:13:50,788 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 29.03 08:13:49" (1/3) ... [2018-03-29 20:13:50,788 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@63c03e57 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 29.03 08:13:50, skipping insertion in model container [2018-03-29 20:13:50,788 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.03 08:13:50" (2/3) ... [2018-03-29 20:13:50,789 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@63c03e57 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 29.03 08:13:50, skipping insertion in model container [2018-03-29 20:13:50,789 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 29.03 08:13:50" (3/3) ... [2018-03-29 20:13:50,790 INFO L107 eAbstractionObserver]: Analyzing ICFG bubblesort-alloca_true-valid-memsafety_true-termination.i [2018-03-29 20:13:50,797 INFO L131 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2018-03-29 20:13:50,802 INFO L143 ceAbstractionStarter]: Appying trace abstraction to program that has 13 error locations. [2018-03-29 20:13:50,845 INFO L128 ementStrategyFactory]: Using default assertion order modulation [2018-03-29 20:13:50,846 INFO L369 AbstractCegarLoop]: Interprodecural is true [2018-03-29 20:13:50,846 INFO L370 AbstractCegarLoop]: Hoare is true [2018-03-29 20:13:50,846 INFO L371 AbstractCegarLoop]: Compute interpolants for FPandBP [2018-03-29 20:13:50,846 INFO L372 AbstractCegarLoop]: Backedges is TWOTRACK [2018-03-29 20:13:50,846 INFO L373 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2018-03-29 20:13:50,846 INFO L374 AbstractCegarLoop]: Difference is false [2018-03-29 20:13:50,846 INFO L375 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2018-03-29 20:13:50,846 INFO L380 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2018-03-29 20:13:50,847 INFO L87 2NestedWordAutomaton]: Mode: main mode - execution starts in main procedure [2018-03-29 20:13:50,863 INFO L276 IsEmpty]: Start isEmpty. Operand 67 states. [2018-03-29 20:13:50,868 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 26 [2018-03-29 20:13:50,868 INFO L347 BasicCegarLoop]: Found error trace [2018-03-29 20:13:50,869 INFO L355 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-03-29 20:13:50,869 INFO L408 AbstractCegarLoop]: === Iteration 1 === [__U_MULTI_fbubblesort_alloca_true_valid_memsafety_true_termination_i__bubbleSortErr0RequiresViolation, __U_MULTI_fbubblesort_alloca_true_valid_memsafety_true_termination_i__bubbleSortErr9RequiresViolation, __U_MULTI_fbubblesort_alloca_true_valid_memsafety_true_termination_i__bubbleSortErr2RequiresViolation, __U_MULTI_fbubblesort_alloca_true_valid_memsafety_true_termination_i__bubbleSortErr10RequiresViolation, __U_MULTI_fbubblesort_alloca_true_valid_memsafety_true_termination_i__bubbleSortErr6RequiresViolation, __U_MULTI_fbubblesort_alloca_true_valid_memsafety_true_termination_i__bubbleSortErr1RequiresViolation, __U_MULTI_fbubblesort_alloca_true_valid_memsafety_true_termination_i__bubbleSortErr7RequiresViolation, __U_MULTI_fbubblesort_alloca_true_valid_memsafety_true_termination_i__bubbleSortErr11RequiresViolation, __U_MULTI_fbubblesort_alloca_true_valid_memsafety_true_termination_i__bubbleSortErr8RequiresViolation, __U_MULTI_fbubblesort_alloca_true_valid_memsafety_true_termination_i__bubbleSortErr4RequiresViolation, __U_MULTI_fbubblesort_alloca_true_valid_memsafety_true_termination_i__bubbleSortErr5RequiresViolation, __U_MULTI_fbubblesort_alloca_true_valid_memsafety_true_termination_i__bubbleSortErr3RequiresViolation, mainErr0EnsuresViolationMEMORY_LEAK]=== [2018-03-29 20:13:50,872 INFO L82 PathProgramCache]: Analyzing trace with hash -854675194, now seen corresponding path program 1 times No working directory specified, using /storage/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 2 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 2 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2018-03-29 20:13:50,884 INFO L68 tionRefinementEngine]: Using refinement strategy FixedRefinementStrategy [2018-03-29 20:13:50,912 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-03-29 20:13:50,919 INFO L270 TraceCheckSpWp]: Computing forward predicates... [2018-03-29 20:13:50,957 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 6 treesize of output 5 [2018-03-29 20:13:50,959 INFO L267 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2018-03-29 20:13:50,964 INFO L267 ElimStorePlain]: Start of recursive call 1: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-03-29 20:13:50,964 INFO L202 ElimStorePlain]: Needed 2 recursive calls to eliminate 1 variables, input treesize:6, output treesize:5 [2018-03-29 20:13:51,020 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-03-29 20:13:51,020 INFO L314 TraceCheckSpWp]: Computing backward predicates... [2018-03-29 20:13:51,033 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-03-29 20:13:51,057 INFO L320 seRefinementStrategy]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2018-03-29 20:13:51,058 INFO L335 seRefinementStrategy]: Number of different interpolants: perfect sequences [5, 5] imperfect sequences [] total 5 [2018-03-29 20:13:51,059 INFO L442 AbstractCegarLoop]: Interpolant automaton has 6 states [2018-03-29 20:13:51,069 INFO L132 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2018-03-29 20:13:51,069 INFO L133 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2018-03-29 20:13:51,071 INFO L87 Difference]: Start difference. First operand 67 states. Second operand 6 states. [2018-03-29 20:13:51,269 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-03-29 20:13:51,269 INFO L93 Difference]: Finished difference Result 108 states and 123 transitions. [2018-03-29 20:13:51,270 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2018-03-29 20:13:51,271 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 25 [2018-03-29 20:13:51,271 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-03-29 20:13:51,280 INFO L225 Difference]: With dead ends: 108 [2018-03-29 20:13:51,280 INFO L226 Difference]: Without dead ends: 58 [2018-03-29 20:13:51,283 INFO L567 BasicCegarLoop]: 0 DeclaredPredicates, 51 GetRequests, 45 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=17, Invalid=39, Unknown=0, NotChecked=0, Total=56 [2018-03-29 20:13:51,299 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 58 states. [2018-03-29 20:13:51,316 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 58 to 58. [2018-03-29 20:13:51,318 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 58 states. [2018-03-29 20:13:51,319 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 58 states to 58 states and 61 transitions. [2018-03-29 20:13:51,321 INFO L78 Accepts]: Start accepts. Automaton has 58 states and 61 transitions. Word has length 25 [2018-03-29 20:13:51,321 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-03-29 20:13:51,321 INFO L459 AbstractCegarLoop]: Abstraction has 58 states and 61 transitions. [2018-03-29 20:13:51,321 INFO L460 AbstractCegarLoop]: Interpolant automaton has 6 states. [2018-03-29 20:13:51,321 INFO L276 IsEmpty]: Start isEmpty. Operand 58 states and 61 transitions. [2018-03-29 20:13:51,322 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 26 [2018-03-29 20:13:51,322 INFO L347 BasicCegarLoop]: Found error trace [2018-03-29 20:13:51,322 INFO L355 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-03-29 20:13:51,322 INFO L408 AbstractCegarLoop]: === Iteration 2 === [__U_MULTI_fbubblesort_alloca_true_valid_memsafety_true_termination_i__bubbleSortErr0RequiresViolation, __U_MULTI_fbubblesort_alloca_true_valid_memsafety_true_termination_i__bubbleSortErr9RequiresViolation, __U_MULTI_fbubblesort_alloca_true_valid_memsafety_true_termination_i__bubbleSortErr2RequiresViolation, __U_MULTI_fbubblesort_alloca_true_valid_memsafety_true_termination_i__bubbleSortErr10RequiresViolation, __U_MULTI_fbubblesort_alloca_true_valid_memsafety_true_termination_i__bubbleSortErr6RequiresViolation, __U_MULTI_fbubblesort_alloca_true_valid_memsafety_true_termination_i__bubbleSortErr1RequiresViolation, __U_MULTI_fbubblesort_alloca_true_valid_memsafety_true_termination_i__bubbleSortErr7RequiresViolation, __U_MULTI_fbubblesort_alloca_true_valid_memsafety_true_termination_i__bubbleSortErr11RequiresViolation, __U_MULTI_fbubblesort_alloca_true_valid_memsafety_true_termination_i__bubbleSortErr8RequiresViolation, __U_MULTI_fbubblesort_alloca_true_valid_memsafety_true_termination_i__bubbleSortErr4RequiresViolation, __U_MULTI_fbubblesort_alloca_true_valid_memsafety_true_termination_i__bubbleSortErr5RequiresViolation, __U_MULTI_fbubblesort_alloca_true_valid_memsafety_true_termination_i__bubbleSortErr3RequiresViolation, mainErr0EnsuresViolationMEMORY_LEAK]=== [2018-03-29 20:13:51,322 INFO L82 PathProgramCache]: Analyzing trace with hash -854675193, now seen corresponding path program 1 times No working directory specified, using /storage/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 3 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 3 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2018-03-29 20:13:51,328 INFO L68 tionRefinementEngine]: Using refinement strategy FixedRefinementStrategy [2018-03-29 20:13:51,345 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-03-29 20:13:51,348 INFO L270 TraceCheckSpWp]: Computing forward predicates... [2018-03-29 20:13:51,356 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 8 treesize of output 7 [2018-03-29 20:13:51,357 INFO L267 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2018-03-29 20:13:51,361 INFO L267 ElimStorePlain]: Start of recursive call 1: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-03-29 20:13:51,361 INFO L202 ElimStorePlain]: Needed 2 recursive calls to eliminate 1 variables, input treesize:12, output treesize:11 [2018-03-29 20:13:51,599 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-03-29 20:13:51,600 INFO L314 TraceCheckSpWp]: Computing backward predicates... [2018-03-29 20:13:52,004 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-03-29 20:13:52,039 INFO L320 seRefinementStrategy]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2018-03-29 20:13:52,040 INFO L335 seRefinementStrategy]: Number of different interpolants: perfect sequences [9, 9] imperfect sequences [] total 17 [2018-03-29 20:13:52,042 INFO L442 AbstractCegarLoop]: Interpolant automaton has 18 states [2018-03-29 20:13:52,042 INFO L132 InterpolantAutomaton]: Constructing interpolant automaton starting with 18 interpolants. [2018-03-29 20:13:52,043 INFO L133 InterpolantAutomaton]: CoverageRelationStatistics Valid=45, Invalid=261, Unknown=0, NotChecked=0, Total=306 [2018-03-29 20:13:52,043 INFO L87 Difference]: Start difference. First operand 58 states and 61 transitions. Second operand 18 states. [2018-03-29 20:13:52,961 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-03-29 20:13:52,962 INFO L93 Difference]: Finished difference Result 95 states and 106 transitions. [2018-03-29 20:13:52,962 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 18 states. [2018-03-29 20:13:52,962 INFO L78 Accepts]: Start accepts. Automaton has 18 states. Word has length 25 [2018-03-29 20:13:52,962 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-03-29 20:13:52,965 INFO L225 Difference]: With dead ends: 95 [2018-03-29 20:13:52,965 INFO L226 Difference]: Without dead ends: 89 [2018-03-29 20:13:52,966 INFO L567 BasicCegarLoop]: 0 DeclaredPredicates, 62 GetRequests, 33 SyntacticMatches, 0 SemanticMatches, 29 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 96 ImplicationChecksByTransitivity, 1.0s TimeCoverageRelationStatistics Valid=213, Invalid=717, Unknown=0, NotChecked=0, Total=930 [2018-03-29 20:13:52,967 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 89 states. [2018-03-29 20:13:52,974 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 89 to 61. [2018-03-29 20:13:52,974 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 61 states. [2018-03-29 20:13:52,976 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 61 states to 61 states and 66 transitions. [2018-03-29 20:13:52,976 INFO L78 Accepts]: Start accepts. Automaton has 61 states and 66 transitions. Word has length 25 [2018-03-29 20:13:52,977 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-03-29 20:13:52,977 INFO L459 AbstractCegarLoop]: Abstraction has 61 states and 66 transitions. [2018-03-29 20:13:52,977 INFO L460 AbstractCegarLoop]: Interpolant automaton has 18 states. [2018-03-29 20:13:52,977 INFO L276 IsEmpty]: Start isEmpty. Operand 61 states and 66 transitions. [2018-03-29 20:13:52,978 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 28 [2018-03-29 20:13:52,978 INFO L347 BasicCegarLoop]: Found error trace [2018-03-29 20:13:52,979 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] [2018-03-29 20:13:52,979 INFO L408 AbstractCegarLoop]: === Iteration 3 === [__U_MULTI_fbubblesort_alloca_true_valid_memsafety_true_termination_i__bubbleSortErr0RequiresViolation, __U_MULTI_fbubblesort_alloca_true_valid_memsafety_true_termination_i__bubbleSortErr9RequiresViolation, __U_MULTI_fbubblesort_alloca_true_valid_memsafety_true_termination_i__bubbleSortErr2RequiresViolation, __U_MULTI_fbubblesort_alloca_true_valid_memsafety_true_termination_i__bubbleSortErr10RequiresViolation, __U_MULTI_fbubblesort_alloca_true_valid_memsafety_true_termination_i__bubbleSortErr6RequiresViolation, __U_MULTI_fbubblesort_alloca_true_valid_memsafety_true_termination_i__bubbleSortErr1RequiresViolation, __U_MULTI_fbubblesort_alloca_true_valid_memsafety_true_termination_i__bubbleSortErr7RequiresViolation, __U_MULTI_fbubblesort_alloca_true_valid_memsafety_true_termination_i__bubbleSortErr11RequiresViolation, __U_MULTI_fbubblesort_alloca_true_valid_memsafety_true_termination_i__bubbleSortErr8RequiresViolation, __U_MULTI_fbubblesort_alloca_true_valid_memsafety_true_termination_i__bubbleSortErr4RequiresViolation, __U_MULTI_fbubblesort_alloca_true_valid_memsafety_true_termination_i__bubbleSortErr5RequiresViolation, __U_MULTI_fbubblesort_alloca_true_valid_memsafety_true_termination_i__bubbleSortErr3RequiresViolation, mainErr0EnsuresViolationMEMORY_LEAK]=== [2018-03-29 20:13:52,979 INFO L82 PathProgramCache]: Analyzing trace with hash -1183117181, now seen corresponding path program 1 times No working directory specified, using /storage/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 4 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 4 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2018-03-29 20:13:52,986 INFO L68 tionRefinementEngine]: Using refinement strategy FixedRefinementStrategy [2018-03-29 20:13:52,997 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-03-29 20:13:52,999 INFO L270 TraceCheckSpWp]: Computing forward predicates... [2018-03-29 20:13:53,026 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-03-29 20:13:53,026 INFO L314 TraceCheckSpWp]: Computing backward predicates... [2018-03-29 20:13:53,072 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-03-29 20:13:53,108 INFO L320 seRefinementStrategy]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2018-03-29 20:13:53,108 INFO L335 seRefinementStrategy]: Number of different interpolants: perfect sequences [6, 6] imperfect sequences [] total 8 [2018-03-29 20:13:53,108 INFO L442 AbstractCegarLoop]: Interpolant automaton has 8 states [2018-03-29 20:13:53,108 INFO L132 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2018-03-29 20:13:53,108 INFO L133 InterpolantAutomaton]: CoverageRelationStatistics Valid=17, Invalid=39, Unknown=0, NotChecked=0, Total=56 [2018-03-29 20:13:53,109 INFO L87 Difference]: Start difference. First operand 61 states and 66 transitions. Second operand 8 states. [2018-03-29 20:13:53,176 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-03-29 20:13:53,176 INFO L93 Difference]: Finished difference Result 91 states and 97 transitions. [2018-03-29 20:13:53,176 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2018-03-29 20:13:53,176 INFO L78 Accepts]: Start accepts. Automaton has 8 states. Word has length 27 [2018-03-29 20:13:53,176 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-03-29 20:13:53,177 INFO L225 Difference]: With dead ends: 91 [2018-03-29 20:13:53,177 INFO L226 Difference]: Without dead ends: 84 [2018-03-29 20:13:53,177 INFO L567 BasicCegarLoop]: 0 DeclaredPredicates, 56 GetRequests, 44 SyntacticMatches, 3 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 4 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=38, Invalid=72, Unknown=0, NotChecked=0, Total=110 [2018-03-29 20:13:53,178 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 84 states. [2018-03-29 20:13:53,183 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 84 to 61. [2018-03-29 20:13:53,183 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 61 states. [2018-03-29 20:13:53,184 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 61 states to 61 states and 65 transitions. [2018-03-29 20:13:53,184 INFO L78 Accepts]: Start accepts. Automaton has 61 states and 65 transitions. Word has length 27 [2018-03-29 20:13:53,184 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-03-29 20:13:53,184 INFO L459 AbstractCegarLoop]: Abstraction has 61 states and 65 transitions. [2018-03-29 20:13:53,184 INFO L460 AbstractCegarLoop]: Interpolant automaton has 8 states. [2018-03-29 20:13:53,184 INFO L276 IsEmpty]: Start isEmpty. Operand 61 states and 65 transitions. [2018-03-29 20:13:53,185 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 34 [2018-03-29 20:13:53,185 INFO L347 BasicCegarLoop]: Found error trace [2018-03-29 20:13:53,185 INFO L355 BasicCegarLoop]: trace histogram [2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-03-29 20:13:53,185 INFO L408 AbstractCegarLoop]: === Iteration 4 === [__U_MULTI_fbubblesort_alloca_true_valid_memsafety_true_termination_i__bubbleSortErr0RequiresViolation, __U_MULTI_fbubblesort_alloca_true_valid_memsafety_true_termination_i__bubbleSortErr9RequiresViolation, __U_MULTI_fbubblesort_alloca_true_valid_memsafety_true_termination_i__bubbleSortErr2RequiresViolation, __U_MULTI_fbubblesort_alloca_true_valid_memsafety_true_termination_i__bubbleSortErr10RequiresViolation, __U_MULTI_fbubblesort_alloca_true_valid_memsafety_true_termination_i__bubbleSortErr6RequiresViolation, __U_MULTI_fbubblesort_alloca_true_valid_memsafety_true_termination_i__bubbleSortErr1RequiresViolation, __U_MULTI_fbubblesort_alloca_true_valid_memsafety_true_termination_i__bubbleSortErr7RequiresViolation, __U_MULTI_fbubblesort_alloca_true_valid_memsafety_true_termination_i__bubbleSortErr11RequiresViolation, __U_MULTI_fbubblesort_alloca_true_valid_memsafety_true_termination_i__bubbleSortErr8RequiresViolation, __U_MULTI_fbubblesort_alloca_true_valid_memsafety_true_termination_i__bubbleSortErr4RequiresViolation, __U_MULTI_fbubblesort_alloca_true_valid_memsafety_true_termination_i__bubbleSortErr5RequiresViolation, __U_MULTI_fbubblesort_alloca_true_valid_memsafety_true_termination_i__bubbleSortErr3RequiresViolation, mainErr0EnsuresViolationMEMORY_LEAK]=== [2018-03-29 20:13:53,186 INFO L82 PathProgramCache]: Analyzing trace with hash 1955979929, now seen corresponding path program 1 times No working directory specified, using /storage/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 5 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 5 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2018-03-29 20:13:53,191 INFO L68 tionRefinementEngine]: Using refinement strategy FixedRefinementStrategy [2018-03-29 20:13:53,203 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-03-29 20:13:53,204 INFO L270 TraceCheckSpWp]: Computing forward predicates... [2018-03-29 20:13:53,220 INFO L134 CoverageAnalysis]: Checked inductivity of 5 backedges. 5 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-03-29 20:13:53,220 INFO L314 TraceCheckSpWp]: Computing backward predicates... [2018-03-29 20:13:53,233 INFO L134 CoverageAnalysis]: Checked inductivity of 5 backedges. 5 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-03-29 20:13:53,255 INFO L320 seRefinementStrategy]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2018-03-29 20:13:53,255 INFO L335 seRefinementStrategy]: Number of different interpolants: perfect sequences [6, 6] imperfect sequences [] total 6 [2018-03-29 20:13:53,255 INFO L442 AbstractCegarLoop]: Interpolant automaton has 6 states [2018-03-29 20:13:53,256 INFO L132 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2018-03-29 20:13:53,256 INFO L133 InterpolantAutomaton]: CoverageRelationStatistics Valid=10, Invalid=20, Unknown=0, NotChecked=0, Total=30 [2018-03-29 20:13:53,256 INFO L87 Difference]: Start difference. First operand 61 states and 65 transitions. Second operand 6 states. [2018-03-29 20:13:53,340 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-03-29 20:13:53,341 INFO L93 Difference]: Finished difference Result 122 states and 131 transitions. [2018-03-29 20:13:53,341 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2018-03-29 20:13:53,341 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 33 [2018-03-29 20:13:53,341 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-03-29 20:13:53,342 INFO L225 Difference]: With dead ends: 122 [2018-03-29 20:13:53,342 INFO L226 Difference]: Without dead ends: 88 [2018-03-29 20:13:53,343 INFO L567 BasicCegarLoop]: 0 DeclaredPredicates, 70 GetRequests, 58 SyntacticMatches, 4 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 4 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=35, Invalid=55, Unknown=0, NotChecked=0, Total=90 [2018-03-29 20:13:53,343 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 88 states. [2018-03-29 20:13:53,349 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 88 to 68. [2018-03-29 20:13:53,350 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 68 states. [2018-03-29 20:13:53,351 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 68 states to 68 states and 73 transitions. [2018-03-29 20:13:53,351 INFO L78 Accepts]: Start accepts. Automaton has 68 states and 73 transitions. Word has length 33 [2018-03-29 20:13:53,351 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-03-29 20:13:53,352 INFO L459 AbstractCegarLoop]: Abstraction has 68 states and 73 transitions. [2018-03-29 20:13:53,352 INFO L460 AbstractCegarLoop]: Interpolant automaton has 6 states. [2018-03-29 20:13:53,352 INFO L276 IsEmpty]: Start isEmpty. Operand 68 states and 73 transitions. [2018-03-29 20:13:53,353 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 36 [2018-03-29 20:13:53,353 INFO L347 BasicCegarLoop]: Found error trace [2018-03-29 20:13:53,353 INFO L355 BasicCegarLoop]: trace histogram [2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-03-29 20:13:53,353 INFO L408 AbstractCegarLoop]: === Iteration 5 === [__U_MULTI_fbubblesort_alloca_true_valid_memsafety_true_termination_i__bubbleSortErr0RequiresViolation, __U_MULTI_fbubblesort_alloca_true_valid_memsafety_true_termination_i__bubbleSortErr9RequiresViolation, __U_MULTI_fbubblesort_alloca_true_valid_memsafety_true_termination_i__bubbleSortErr2RequiresViolation, __U_MULTI_fbubblesort_alloca_true_valid_memsafety_true_termination_i__bubbleSortErr10RequiresViolation, __U_MULTI_fbubblesort_alloca_true_valid_memsafety_true_termination_i__bubbleSortErr6RequiresViolation, __U_MULTI_fbubblesort_alloca_true_valid_memsafety_true_termination_i__bubbleSortErr1RequiresViolation, __U_MULTI_fbubblesort_alloca_true_valid_memsafety_true_termination_i__bubbleSortErr7RequiresViolation, __U_MULTI_fbubblesort_alloca_true_valid_memsafety_true_termination_i__bubbleSortErr11RequiresViolation, __U_MULTI_fbubblesort_alloca_true_valid_memsafety_true_termination_i__bubbleSortErr8RequiresViolation, __U_MULTI_fbubblesort_alloca_true_valid_memsafety_true_termination_i__bubbleSortErr4RequiresViolation, __U_MULTI_fbubblesort_alloca_true_valid_memsafety_true_termination_i__bubbleSortErr5RequiresViolation, __U_MULTI_fbubblesort_alloca_true_valid_memsafety_true_termination_i__bubbleSortErr3RequiresViolation, mainErr0EnsuresViolationMEMORY_LEAK]=== [2018-03-29 20:13:53,354 INFO L82 PathProgramCache]: Analyzing trace with hash -1677974123, now seen corresponding path program 1 times No working directory specified, using /storage/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 6 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 6 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2018-03-29 20:13:53,367 INFO L68 tionRefinementEngine]: Using refinement strategy FixedRefinementStrategy [2018-03-29 20:13:53,380 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-03-29 20:13:53,383 INFO L270 TraceCheckSpWp]: Computing forward predicates... [2018-03-29 20:13:53,398 INFO L700 Elim1Store]: detected not equals via solver [2018-03-29 20:13:53,400 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 [2018-03-29 20:13:53,400 INFO L267 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2018-03-29 20:13:53,405 INFO L267 ElimStorePlain]: Start of recursive call 1: 1 dim-0 vars, 1 dim-1 vars, End of recursive call: 1 dim-0 vars, and 1 xjuncts. [2018-03-29 20:13:53,405 INFO L202 ElimStorePlain]: Needed 2 recursive calls to eliminate 2 variables, input treesize:12, output treesize:5 [2018-03-29 20:13:53,431 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 [2018-03-29 20:13:53,434 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2018-03-29 20:13:53,435 INFO L314 TraceCheckSpWp]: Computing backward predicates... [2018-03-29 20:13:53,446 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 [2018-03-29 20:13:53,454 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2018-03-29 20:13:53,481 INFO L320 seRefinementStrategy]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2018-03-29 20:13:53,481 INFO L335 seRefinementStrategy]: Number of different interpolants: perfect sequences [5, 4] imperfect sequences [] total 7 [2018-03-29 20:13:53,481 INFO L442 AbstractCegarLoop]: Interpolant automaton has 8 states [2018-03-29 20:13:53,482 INFO L132 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2018-03-29 20:13:53,482 INFO L133 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=21, Unknown=2, NotChecked=18, Total=56 [2018-03-29 20:13:53,482 INFO L87 Difference]: Start difference. First operand 68 states and 73 transitions. Second operand 8 states. [2018-03-29 20:13:53,501 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 [2018-03-29 20:13:53,661 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-03-29 20:13:53,662 INFO L93 Difference]: Finished difference Result 76 states and 81 transitions. [2018-03-29 20:13:53,662 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2018-03-29 20:13:53,662 INFO L78 Accepts]: Start accepts. Automaton has 8 states. Word has length 35 [2018-03-29 20:13:53,662 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-03-29 20:13:53,664 INFO L225 Difference]: With dead ends: 76 [2018-03-29 20:13:53,664 INFO L226 Difference]: Without dead ends: 71 [2018-03-29 20:13:53,665 INFO L567 BasicCegarLoop]: 0 DeclaredPredicates, 74 GetRequests, 63 SyntacticMatches, 1 SemanticMatches, 10 ConstructedPredicates, 3 IntricatePredicates, 0 DeprecatedPredicates, 5 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=29, Invalid=52, Unknown=3, NotChecked=48, Total=132 [2018-03-29 20:13:53,665 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 71 states. [2018-03-29 20:13:53,678 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 71 to 71. [2018-03-29 20:13:53,678 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 71 states. [2018-03-29 20:13:53,679 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 71 states to 71 states and 76 transitions. [2018-03-29 20:13:53,679 INFO L78 Accepts]: Start accepts. Automaton has 71 states and 76 transitions. Word has length 35 [2018-03-29 20:13:53,679 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-03-29 20:13:53,679 INFO L459 AbstractCegarLoop]: Abstraction has 71 states and 76 transitions. [2018-03-29 20:13:53,680 INFO L460 AbstractCegarLoop]: Interpolant automaton has 8 states. [2018-03-29 20:13:53,680 INFO L276 IsEmpty]: Start isEmpty. Operand 71 states and 76 transitions. [2018-03-29 20:13:53,681 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 36 [2018-03-29 20:13:53,681 INFO L347 BasicCegarLoop]: Found error trace [2018-03-29 20:13:53,681 INFO L355 BasicCegarLoop]: trace histogram [2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-03-29 20:13:53,681 INFO L408 AbstractCegarLoop]: === Iteration 6 === [__U_MULTI_fbubblesort_alloca_true_valid_memsafety_true_termination_i__bubbleSortErr0RequiresViolation, __U_MULTI_fbubblesort_alloca_true_valid_memsafety_true_termination_i__bubbleSortErr9RequiresViolation, __U_MULTI_fbubblesort_alloca_true_valid_memsafety_true_termination_i__bubbleSortErr2RequiresViolation, __U_MULTI_fbubblesort_alloca_true_valid_memsafety_true_termination_i__bubbleSortErr10RequiresViolation, __U_MULTI_fbubblesort_alloca_true_valid_memsafety_true_termination_i__bubbleSortErr6RequiresViolation, __U_MULTI_fbubblesort_alloca_true_valid_memsafety_true_termination_i__bubbleSortErr1RequiresViolation, __U_MULTI_fbubblesort_alloca_true_valid_memsafety_true_termination_i__bubbleSortErr7RequiresViolation, __U_MULTI_fbubblesort_alloca_true_valid_memsafety_true_termination_i__bubbleSortErr11RequiresViolation, __U_MULTI_fbubblesort_alloca_true_valid_memsafety_true_termination_i__bubbleSortErr8RequiresViolation, __U_MULTI_fbubblesort_alloca_true_valid_memsafety_true_termination_i__bubbleSortErr4RequiresViolation, __U_MULTI_fbubblesort_alloca_true_valid_memsafety_true_termination_i__bubbleSortErr5RequiresViolation, __U_MULTI_fbubblesort_alloca_true_valid_memsafety_true_termination_i__bubbleSortErr3RequiresViolation, mainErr0EnsuresViolationMEMORY_LEAK]=== [2018-03-29 20:13:53,682 INFO L82 PathProgramCache]: Analyzing trace with hash 1049094811, now seen corresponding path program 1 times No working directory specified, using /storage/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 7 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 7 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2018-03-29 20:13:53,690 INFO L68 tionRefinementEngine]: Using refinement strategy FixedRefinementStrategy [2018-03-29 20:13:53,704 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-03-29 20:13:53,706 INFO L270 TraceCheckSpWp]: Computing forward predicates... [2018-03-29 20:13:53,813 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 3 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-03-29 20:13:53,813 INFO L314 TraceCheckSpWp]: Computing backward predicates... [2018-03-29 20:13:53,862 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 [2018-03-29 20:13:53,862 INFO L267 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2018-03-29 20:13:53,863 INFO L267 ElimStorePlain]: Start of recursive call 1: 1 dim-0 vars, 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-03-29 20:13:53,864 INFO L202 ElimStorePlain]: Needed 2 recursive calls to eliminate 2 variables, input treesize:19, output treesize:7 [2018-03-29 20:13:53,943 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 3 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-03-29 20:13:53,964 INFO L320 seRefinementStrategy]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2018-03-29 20:13:53,964 INFO L335 seRefinementStrategy]: Number of different interpolants: perfect sequences [9, 9] imperfect sequences [] total 17 [2018-03-29 20:13:53,964 INFO L442 AbstractCegarLoop]: Interpolant automaton has 18 states [2018-03-29 20:13:53,964 INFO L132 InterpolantAutomaton]: Constructing interpolant automaton starting with 18 interpolants. [2018-03-29 20:13:53,965 INFO L133 InterpolantAutomaton]: CoverageRelationStatistics Valid=56, Invalid=250, Unknown=0, NotChecked=0, Total=306 [2018-03-29 20:13:53,965 INFO L87 Difference]: Start difference. First operand 71 states and 76 transitions. Second operand 18 states. [2018-03-29 20:13:54,258 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-03-29 20:13:54,258 INFO L93 Difference]: Finished difference Result 97 states and 104 transitions. [2018-03-29 20:13:54,259 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2018-03-29 20:13:54,259 INFO L78 Accepts]: Start accepts. Automaton has 18 states. Word has length 35 [2018-03-29 20:13:54,259 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-03-29 20:13:54,260 INFO L225 Difference]: With dead ends: 97 [2018-03-29 20:13:54,260 INFO L226 Difference]: Without dead ends: 95 [2018-03-29 20:13:54,260 INFO L567 BasicCegarLoop]: 0 DeclaredPredicates, 79 GetRequests, 53 SyntacticMatches, 0 SemanticMatches, 26 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 85 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=187, Invalid=569, Unknown=0, NotChecked=0, Total=756 [2018-03-29 20:13:54,261 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 95 states. [2018-03-29 20:13:54,270 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 95 to 67. [2018-03-29 20:13:54,270 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 67 states. [2018-03-29 20:13:54,271 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 67 states to 67 states and 71 transitions. [2018-03-29 20:13:54,271 INFO L78 Accepts]: Start accepts. Automaton has 67 states and 71 transitions. Word has length 35 [2018-03-29 20:13:54,271 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-03-29 20:13:54,271 INFO L459 AbstractCegarLoop]: Abstraction has 67 states and 71 transitions. [2018-03-29 20:13:54,271 INFO L460 AbstractCegarLoop]: Interpolant automaton has 18 states. [2018-03-29 20:13:54,271 INFO L276 IsEmpty]: Start isEmpty. Operand 67 states and 71 transitions. [2018-03-29 20:13:54,272 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 37 [2018-03-29 20:13:54,272 INFO L347 BasicCegarLoop]: Found error trace [2018-03-29 20:13:54,273 INFO L355 BasicCegarLoop]: trace histogram [2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-03-29 20:13:54,273 INFO L408 AbstractCegarLoop]: === Iteration 7 === [__U_MULTI_fbubblesort_alloca_true_valid_memsafety_true_termination_i__bubbleSortErr0RequiresViolation, __U_MULTI_fbubblesort_alloca_true_valid_memsafety_true_termination_i__bubbleSortErr9RequiresViolation, __U_MULTI_fbubblesort_alloca_true_valid_memsafety_true_termination_i__bubbleSortErr2RequiresViolation, __U_MULTI_fbubblesort_alloca_true_valid_memsafety_true_termination_i__bubbleSortErr10RequiresViolation, __U_MULTI_fbubblesort_alloca_true_valid_memsafety_true_termination_i__bubbleSortErr6RequiresViolation, __U_MULTI_fbubblesort_alloca_true_valid_memsafety_true_termination_i__bubbleSortErr1RequiresViolation, __U_MULTI_fbubblesort_alloca_true_valid_memsafety_true_termination_i__bubbleSortErr7RequiresViolation, __U_MULTI_fbubblesort_alloca_true_valid_memsafety_true_termination_i__bubbleSortErr11RequiresViolation, __U_MULTI_fbubblesort_alloca_true_valid_memsafety_true_termination_i__bubbleSortErr8RequiresViolation, __U_MULTI_fbubblesort_alloca_true_valid_memsafety_true_termination_i__bubbleSortErr4RequiresViolation, __U_MULTI_fbubblesort_alloca_true_valid_memsafety_true_termination_i__bubbleSortErr5RequiresViolation, __U_MULTI_fbubblesort_alloca_true_valid_memsafety_true_termination_i__bubbleSortErr3RequiresViolation, mainErr0EnsuresViolationMEMORY_LEAK]=== [2018-03-29 20:13:54,273 INFO L82 PathProgramCache]: Analyzing trace with hash -543718952, now seen corresponding path program 1 times No working directory specified, using /storage/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 8 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 8 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2018-03-29 20:13:54,279 INFO L68 tionRefinementEngine]: Using refinement strategy FixedRefinementStrategy [2018-03-29 20:13:54,291 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-03-29 20:13:54,294 INFO L270 TraceCheckSpWp]: Computing forward predicates... [2018-03-29 20:13:54,318 INFO L700 Elim1Store]: detected not equals via solver [2018-03-29 20:13:54,319 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 [2018-03-29 20:13:54,319 INFO L267 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2018-03-29 20:13:54,321 INFO L267 ElimStorePlain]: Start of recursive call 1: 1 dim-0 vars, 1 dim-1 vars, End of recursive call: 1 dim-0 vars, and 1 xjuncts. [2018-03-29 20:13:54,321 INFO L202 ElimStorePlain]: Needed 2 recursive calls to eliminate 2 variables, input treesize:12, output treesize:5 [2018-03-29 20:13:54,350 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 [2018-03-29 20:13:54,353 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2018-03-29 20:13:54,353 INFO L314 TraceCheckSpWp]: Computing backward predicates... [2018-03-29 20:13:54,362 WARN L1011 $PredicateComparison]: unable to prove that (forall ((|v_main_#t~malloc9.base_13| Int)) (or (not (= 0 (select |c_#valid| |v_main_#t~malloc9.base_13|))) (= (store |c_#valid| |v_main_#t~malloc9.base_13| 0) |c_old(#valid)|))) is different from false [2018-03-29 20:13:54,368 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2018-03-29 20:13:54,389 INFO L320 seRefinementStrategy]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2018-03-29 20:13:54,390 INFO L335 seRefinementStrategy]: Number of different interpolants: perfect sequences [5, 4] imperfect sequences [] total 7 [2018-03-29 20:13:54,390 INFO L442 AbstractCegarLoop]: Interpolant automaton has 8 states [2018-03-29 20:13:54,390 INFO L132 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2018-03-29 20:13:54,390 INFO L133 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=21, Unknown=2, NotChecked=18, Total=56 [2018-03-29 20:13:54,390 INFO L87 Difference]: Start difference. First operand 67 states and 71 transitions. Second operand 8 states. [2018-03-29 20:13:54,397 WARN L1011 $PredicateComparison]: unable to prove that (and (= |c_#valid| |c_old(#valid)|) (forall ((|v_main_#t~malloc9.base_13| Int)) (or (not (= 0 (select |c_#valid| |v_main_#t~malloc9.base_13|))) (= (store |c_#valid| |v_main_#t~malloc9.base_13| 0) |c_old(#valid)|)))) is different from false [2018-03-29 20:13:54,547 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-03-29 20:13:54,547 INFO L93 Difference]: Finished difference Result 67 states and 71 transitions. [2018-03-29 20:13:54,547 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2018-03-29 20:13:54,547 INFO L78 Accepts]: Start accepts. Automaton has 8 states. Word has length 36 [2018-03-29 20:13:54,548 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-03-29 20:13:54,548 INFO L225 Difference]: With dead ends: 67 [2018-03-29 20:13:54,548 INFO L226 Difference]: Without dead ends: 55 [2018-03-29 20:13:54,549 INFO L567 BasicCegarLoop]: 0 DeclaredPredicates, 76 GetRequests, 65 SyntacticMatches, 1 SemanticMatches, 10 ConstructedPredicates, 3 IntricatePredicates, 0 DeprecatedPredicates, 5 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=29, Invalid=52, Unknown=3, NotChecked=48, Total=132 [2018-03-29 20:13:54,549 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 55 states. [2018-03-29 20:13:54,556 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 55 to 50. [2018-03-29 20:13:54,556 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 50 states. [2018-03-29 20:13:54,557 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 50 states to 50 states and 53 transitions. [2018-03-29 20:13:54,557 INFO L78 Accepts]: Start accepts. Automaton has 50 states and 53 transitions. Word has length 36 [2018-03-29 20:13:54,557 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-03-29 20:13:54,557 INFO L459 AbstractCegarLoop]: Abstraction has 50 states and 53 transitions. [2018-03-29 20:13:54,557 INFO L460 AbstractCegarLoop]: Interpolant automaton has 8 states. [2018-03-29 20:13:54,558 INFO L276 IsEmpty]: Start isEmpty. Operand 50 states and 53 transitions. [2018-03-29 20:13:54,558 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 37 [2018-03-29 20:13:54,559 INFO L347 BasicCegarLoop]: Found error trace [2018-03-29 20:13:54,559 INFO L355 BasicCegarLoop]: trace histogram [2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-03-29 20:13:54,559 INFO L408 AbstractCegarLoop]: === Iteration 8 === [__U_MULTI_fbubblesort_alloca_true_valid_memsafety_true_termination_i__bubbleSortErr0RequiresViolation, __U_MULTI_fbubblesort_alloca_true_valid_memsafety_true_termination_i__bubbleSortErr9RequiresViolation, __U_MULTI_fbubblesort_alloca_true_valid_memsafety_true_termination_i__bubbleSortErr2RequiresViolation, __U_MULTI_fbubblesort_alloca_true_valid_memsafety_true_termination_i__bubbleSortErr10RequiresViolation, __U_MULTI_fbubblesort_alloca_true_valid_memsafety_true_termination_i__bubbleSortErr6RequiresViolation, __U_MULTI_fbubblesort_alloca_true_valid_memsafety_true_termination_i__bubbleSortErr1RequiresViolation, __U_MULTI_fbubblesort_alloca_true_valid_memsafety_true_termination_i__bubbleSortErr7RequiresViolation, __U_MULTI_fbubblesort_alloca_true_valid_memsafety_true_termination_i__bubbleSortErr11RequiresViolation, __U_MULTI_fbubblesort_alloca_true_valid_memsafety_true_termination_i__bubbleSortErr8RequiresViolation, __U_MULTI_fbubblesort_alloca_true_valid_memsafety_true_termination_i__bubbleSortErr4RequiresViolation, __U_MULTI_fbubblesort_alloca_true_valid_memsafety_true_termination_i__bubbleSortErr5RequiresViolation, __U_MULTI_fbubblesort_alloca_true_valid_memsafety_true_termination_i__bubbleSortErr3RequiresViolation, mainErr0EnsuresViolationMEMORY_LEAK]=== [2018-03-29 20:13:54,559 INFO L82 PathProgramCache]: Analyzing trace with hash -1837799259, now seen corresponding path program 1 times No working directory specified, using /storage/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 9 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 9 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2018-03-29 20:13:54,567 INFO L68 tionRefinementEngine]: Using refinement strategy FixedRefinementStrategy [2018-03-29 20:13:54,585 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-03-29 20:13:54,588 INFO L270 TraceCheckSpWp]: Computing forward predicates... [2018-03-29 20:13:54,600 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 8 treesize of output 7 [2018-03-29 20:13:54,601 INFO L267 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2018-03-29 20:13:54,604 INFO L267 ElimStorePlain]: Start of recursive call 1: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-03-29 20:13:54,604 INFO L202 ElimStorePlain]: Needed 2 recursive calls to eliminate 1 variables, input treesize:12, output treesize:11 [2018-03-29 20:13:54,736 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2018-03-29 20:13:54,736 INFO L314 TraceCheckSpWp]: Computing backward predicates... [2018-03-29 20:13:55,050 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2018-03-29 20:13:55,076 INFO L320 seRefinementStrategy]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2018-03-29 20:13:55,076 INFO L335 seRefinementStrategy]: Number of different interpolants: perfect sequences [] imperfect sequences [9, 9] total 17 [2018-03-29 20:13:55,077 INFO L442 AbstractCegarLoop]: Interpolant automaton has 18 states [2018-03-29 20:13:55,077 INFO L132 InterpolantAutomaton]: Constructing interpolant automaton starting with 18 interpolants. [2018-03-29 20:13:55,077 INFO L133 InterpolantAutomaton]: CoverageRelationStatistics Valid=44, Invalid=262, Unknown=0, NotChecked=0, Total=306 [2018-03-29 20:13:55,077 INFO L87 Difference]: Start difference. First operand 50 states and 53 transitions. Second operand 18 states. [2018-03-29 20:13:55,422 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-03-29 20:13:55,423 INFO L93 Difference]: Finished difference Result 79 states and 84 transitions. [2018-03-29 20:13:55,423 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2018-03-29 20:13:55,423 INFO L78 Accepts]: Start accepts. Automaton has 18 states. Word has length 36 [2018-03-29 20:13:55,423 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-03-29 20:13:55,424 INFO L225 Difference]: With dead ends: 79 [2018-03-29 20:13:55,424 INFO L226 Difference]: Without dead ends: 78 [2018-03-29 20:13:55,424 INFO L567 BasicCegarLoop]: 0 DeclaredPredicates, 78 GetRequests, 55 SyntacticMatches, 0 SemanticMatches, 23 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 50 ImplicationChecksByTransitivity, 0.5s TimeCoverageRelationStatistics Valid=123, Invalid=477, Unknown=0, NotChecked=0, Total=600 [2018-03-29 20:13:55,424 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 78 states. [2018-03-29 20:13:55,434 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 78 to 74. [2018-03-29 20:13:55,434 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 74 states. [2018-03-29 20:13:55,435 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 74 states to 74 states and 79 transitions. [2018-03-29 20:13:55,435 INFO L78 Accepts]: Start accepts. Automaton has 74 states and 79 transitions. Word has length 36 [2018-03-29 20:13:55,435 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-03-29 20:13:55,435 INFO L459 AbstractCegarLoop]: Abstraction has 74 states and 79 transitions. [2018-03-29 20:13:55,435 INFO L460 AbstractCegarLoop]: Interpolant automaton has 18 states. [2018-03-29 20:13:55,435 INFO L276 IsEmpty]: Start isEmpty. Operand 74 states and 79 transitions. [2018-03-29 20:13:55,436 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 55 [2018-03-29 20:13:55,436 INFO L347 BasicCegarLoop]: Found error trace [2018-03-29 20:13:55,436 INFO L355 BasicCegarLoop]: trace histogram [4, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-03-29 20:13:55,436 INFO L408 AbstractCegarLoop]: === Iteration 9 === [__U_MULTI_fbubblesort_alloca_true_valid_memsafety_true_termination_i__bubbleSortErr0RequiresViolation, __U_MULTI_fbubblesort_alloca_true_valid_memsafety_true_termination_i__bubbleSortErr9RequiresViolation, __U_MULTI_fbubblesort_alloca_true_valid_memsafety_true_termination_i__bubbleSortErr2RequiresViolation, __U_MULTI_fbubblesort_alloca_true_valid_memsafety_true_termination_i__bubbleSortErr10RequiresViolation, __U_MULTI_fbubblesort_alloca_true_valid_memsafety_true_termination_i__bubbleSortErr6RequiresViolation, __U_MULTI_fbubblesort_alloca_true_valid_memsafety_true_termination_i__bubbleSortErr1RequiresViolation, __U_MULTI_fbubblesort_alloca_true_valid_memsafety_true_termination_i__bubbleSortErr7RequiresViolation, __U_MULTI_fbubblesort_alloca_true_valid_memsafety_true_termination_i__bubbleSortErr11RequiresViolation, __U_MULTI_fbubblesort_alloca_true_valid_memsafety_true_termination_i__bubbleSortErr8RequiresViolation, __U_MULTI_fbubblesort_alloca_true_valid_memsafety_true_termination_i__bubbleSortErr4RequiresViolation, __U_MULTI_fbubblesort_alloca_true_valid_memsafety_true_termination_i__bubbleSortErr5RequiresViolation, __U_MULTI_fbubblesort_alloca_true_valid_memsafety_true_termination_i__bubbleSortErr3RequiresViolation, mainErr0EnsuresViolationMEMORY_LEAK]=== [2018-03-29 20:13:55,436 INFO L82 PathProgramCache]: Analyzing trace with hash 1488453055, now seen corresponding path program 1 times No working directory specified, using /storage/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 10 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 10 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2018-03-29 20:13:55,448 INFO L68 tionRefinementEngine]: Using refinement strategy FixedRefinementStrategy [2018-03-29 20:13:55,465 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-03-29 20:13:55,467 INFO L270 TraceCheckSpWp]: Computing forward predicates... [2018-03-29 20:13:55,494 INFO L134 CoverageAnalysis]: Checked inductivity of 27 backedges. 19 proven. 6 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2018-03-29 20:13:55,494 INFO L314 TraceCheckSpWp]: Computing backward predicates... [2018-03-29 20:13:55,522 INFO L134 CoverageAnalysis]: Checked inductivity of 27 backedges. 19 proven. 6 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2018-03-29 20:13:55,543 INFO L320 seRefinementStrategy]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2018-03-29 20:13:55,543 INFO L335 seRefinementStrategy]: Number of different interpolants: perfect sequences [] imperfect sequences [9, 9] total 10 [2018-03-29 20:13:55,543 INFO L442 AbstractCegarLoop]: Interpolant automaton has 10 states [2018-03-29 20:13:55,543 INFO L132 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2018-03-29 20:13:55,543 INFO L133 InterpolantAutomaton]: CoverageRelationStatistics Valid=22, Invalid=68, Unknown=0, NotChecked=0, Total=90 [2018-03-29 20:13:55,544 INFO L87 Difference]: Start difference. First operand 74 states and 79 transitions. Second operand 10 states. [2018-03-29 20:13:55,772 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-03-29 20:13:55,772 INFO L93 Difference]: Finished difference Result 181 states and 194 transitions. [2018-03-29 20:13:55,772 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2018-03-29 20:13:55,772 INFO L78 Accepts]: Start accepts. Automaton has 10 states. Word has length 54 [2018-03-29 20:13:55,772 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-03-29 20:13:55,773 INFO L225 Difference]: With dead ends: 181 [2018-03-29 20:13:55,773 INFO L226 Difference]: Without dead ends: 143 [2018-03-29 20:13:55,774 INFO L567 BasicCegarLoop]: 0 DeclaredPredicates, 115 GetRequests, 94 SyntacticMatches, 6 SemanticMatches, 15 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 41 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=66, Invalid=206, Unknown=0, NotChecked=0, Total=272 [2018-03-29 20:13:55,774 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 143 states. [2018-03-29 20:13:55,787 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 143 to 110. [2018-03-29 20:13:55,787 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 110 states. [2018-03-29 20:13:55,788 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 110 states to 110 states and 117 transitions. [2018-03-29 20:13:55,788 INFO L78 Accepts]: Start accepts. Automaton has 110 states and 117 transitions. Word has length 54 [2018-03-29 20:13:55,788 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-03-29 20:13:55,788 INFO L459 AbstractCegarLoop]: Abstraction has 110 states and 117 transitions. [2018-03-29 20:13:55,788 INFO L460 AbstractCegarLoop]: Interpolant automaton has 10 states. [2018-03-29 20:13:55,789 INFO L276 IsEmpty]: Start isEmpty. Operand 110 states and 117 transitions. [2018-03-29 20:13:55,789 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 65 [2018-03-29 20:13:55,789 INFO L347 BasicCegarLoop]: Found error trace [2018-03-29 20:13:55,789 INFO L355 BasicCegarLoop]: trace histogram [5, 4, 4, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-03-29 20:13:55,790 INFO L408 AbstractCegarLoop]: === Iteration 10 === [__U_MULTI_fbubblesort_alloca_true_valid_memsafety_true_termination_i__bubbleSortErr0RequiresViolation, __U_MULTI_fbubblesort_alloca_true_valid_memsafety_true_termination_i__bubbleSortErr9RequiresViolation, __U_MULTI_fbubblesort_alloca_true_valid_memsafety_true_termination_i__bubbleSortErr2RequiresViolation, __U_MULTI_fbubblesort_alloca_true_valid_memsafety_true_termination_i__bubbleSortErr10RequiresViolation, __U_MULTI_fbubblesort_alloca_true_valid_memsafety_true_termination_i__bubbleSortErr6RequiresViolation, __U_MULTI_fbubblesort_alloca_true_valid_memsafety_true_termination_i__bubbleSortErr1RequiresViolation, __U_MULTI_fbubblesort_alloca_true_valid_memsafety_true_termination_i__bubbleSortErr7RequiresViolation, __U_MULTI_fbubblesort_alloca_true_valid_memsafety_true_termination_i__bubbleSortErr11RequiresViolation, __U_MULTI_fbubblesort_alloca_true_valid_memsafety_true_termination_i__bubbleSortErr8RequiresViolation, __U_MULTI_fbubblesort_alloca_true_valid_memsafety_true_termination_i__bubbleSortErr4RequiresViolation, __U_MULTI_fbubblesort_alloca_true_valid_memsafety_true_termination_i__bubbleSortErr5RequiresViolation, __U_MULTI_fbubblesort_alloca_true_valid_memsafety_true_termination_i__bubbleSortErr3RequiresViolation, mainErr0EnsuresViolationMEMORY_LEAK]=== [2018-03-29 20:13:55,790 INFO L82 PathProgramCache]: Analyzing trace with hash 2078842027, now seen corresponding path program 2 times No working directory specified, using /storage/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 11 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 11 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2018-03-29 20:13:55,798 INFO L68 tionRefinementEngine]: Using refinement strategy FixedRefinementStrategy [2018-03-29 20:13:55,818 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-03-29 20:13:55,822 INFO L270 TraceCheckSpWp]: Computing forward predicates... [2018-03-29 20:13:55,897 INFO L134 CoverageAnalysis]: Checked inductivity of 53 backedges. 11 proven. 42 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-03-29 20:13:55,897 INFO L314 TraceCheckSpWp]: Computing backward predicates... [2018-03-29 20:13:55,966 INFO L134 CoverageAnalysis]: Checked inductivity of 53 backedges. 11 proven. 42 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-03-29 20:13:56,000 INFO L320 seRefinementStrategy]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2018-03-29 20:13:56,000 INFO L335 seRefinementStrategy]: Number of different interpolants: perfect sequences [] imperfect sequences [13, 13] total 16 [2018-03-29 20:13:56,000 INFO L442 AbstractCegarLoop]: Interpolant automaton has 16 states [2018-03-29 20:13:56,000 INFO L132 InterpolantAutomaton]: Constructing interpolant automaton starting with 16 interpolants. [2018-03-29 20:13:56,001 INFO L133 InterpolantAutomaton]: CoverageRelationStatistics Valid=46, Invalid=194, Unknown=0, NotChecked=0, Total=240 [2018-03-29 20:13:56,001 INFO L87 Difference]: Start difference. First operand 110 states and 117 transitions. Second operand 16 states. [2018-03-29 20:13:56,267 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-03-29 20:13:56,268 INFO L93 Difference]: Finished difference Result 256 states and 273 transitions. [2018-03-29 20:13:56,268 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 18 states. [2018-03-29 20:13:56,268 INFO L78 Accepts]: Start accepts. Automaton has 16 states. Word has length 64 [2018-03-29 20:13:56,268 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-03-29 20:13:56,269 INFO L225 Difference]: With dead ends: 256 [2018-03-29 20:13:56,269 INFO L226 Difference]: Without dead ends: 182 [2018-03-29 20:13:56,270 INFO L567 BasicCegarLoop]: 0 DeclaredPredicates, 140 GetRequests, 106 SyntacticMatches, 8 SemanticMatches, 26 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 154 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=161, Invalid=595, Unknown=0, NotChecked=0, Total=756 [2018-03-29 20:13:56,270 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 182 states. [2018-03-29 20:13:56,286 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 182 to 148. [2018-03-29 20:13:56,287 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 148 states. [2018-03-29 20:13:56,287 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 148 states to 148 states and 158 transitions. [2018-03-29 20:13:56,287 INFO L78 Accepts]: Start accepts. Automaton has 148 states and 158 transitions. Word has length 64 [2018-03-29 20:13:56,287 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-03-29 20:13:56,288 INFO L459 AbstractCegarLoop]: Abstraction has 148 states and 158 transitions. [2018-03-29 20:13:56,288 INFO L460 AbstractCegarLoop]: Interpolant automaton has 16 states. [2018-03-29 20:13:56,288 INFO L276 IsEmpty]: Start isEmpty. Operand 148 states and 158 transitions. [2018-03-29 20:13:56,288 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 75 [2018-03-29 20:13:56,288 INFO L347 BasicCegarLoop]: Found error trace [2018-03-29 20:13:56,289 INFO L355 BasicCegarLoop]: trace histogram [6, 5, 5, 4, 4, 4, 4, 4, 4, 4, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-03-29 20:13:56,289 INFO L408 AbstractCegarLoop]: === Iteration 11 === [__U_MULTI_fbubblesort_alloca_true_valid_memsafety_true_termination_i__bubbleSortErr0RequiresViolation, __U_MULTI_fbubblesort_alloca_true_valid_memsafety_true_termination_i__bubbleSortErr9RequiresViolation, __U_MULTI_fbubblesort_alloca_true_valid_memsafety_true_termination_i__bubbleSortErr2RequiresViolation, __U_MULTI_fbubblesort_alloca_true_valid_memsafety_true_termination_i__bubbleSortErr10RequiresViolation, __U_MULTI_fbubblesort_alloca_true_valid_memsafety_true_termination_i__bubbleSortErr6RequiresViolation, __U_MULTI_fbubblesort_alloca_true_valid_memsafety_true_termination_i__bubbleSortErr1RequiresViolation, __U_MULTI_fbubblesort_alloca_true_valid_memsafety_true_termination_i__bubbleSortErr7RequiresViolation, __U_MULTI_fbubblesort_alloca_true_valid_memsafety_true_termination_i__bubbleSortErr11RequiresViolation, __U_MULTI_fbubblesort_alloca_true_valid_memsafety_true_termination_i__bubbleSortErr8RequiresViolation, __U_MULTI_fbubblesort_alloca_true_valid_memsafety_true_termination_i__bubbleSortErr4RequiresViolation, __U_MULTI_fbubblesort_alloca_true_valid_memsafety_true_termination_i__bubbleSortErr5RequiresViolation, __U_MULTI_fbubblesort_alloca_true_valid_memsafety_true_termination_i__bubbleSortErr3RequiresViolation, mainErr0EnsuresViolationMEMORY_LEAK]=== [2018-03-29 20:13:56,289 INFO L82 PathProgramCache]: Analyzing trace with hash -868186985, now seen corresponding path program 3 times No working directory specified, using /storage/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 12 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 12 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2018-03-29 20:13:56,299 INFO L68 tionRefinementEngine]: Using refinement strategy FixedRefinementStrategy [2018-03-29 20:13:56,322 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-03-29 20:13:56,324 INFO L270 TraceCheckSpWp]: Computing forward predicates... [2018-03-29 20:13:56,435 INFO L134 CoverageAnalysis]: Checked inductivity of 89 backedges. 31 proven. 58 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-03-29 20:13:56,435 INFO L314 TraceCheckSpWp]: Computing backward predicates... [2018-03-29 20:13:56,549 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 [2018-03-29 20:13:56,550 INFO L267 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2018-03-29 20:13:56,553 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. [2018-03-29 20:13:56,554 INFO L202 ElimStorePlain]: Needed 2 recursive calls to eliminate 3 variables, input treesize:26, output treesize:13 [2018-03-29 20:13:56,588 INFO L134 CoverageAnalysis]: Checked inductivity of 89 backedges. 19 proven. 70 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-03-29 20:13:56,609 INFO L320 seRefinementStrategy]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2018-03-29 20:13:56,609 INFO L335 seRefinementStrategy]: Number of different interpolants: perfect sequences [] imperfect sequences [11, 11] total 16 [2018-03-29 20:13:56,610 INFO L442 AbstractCegarLoop]: Interpolant automaton has 17 states [2018-03-29 20:13:56,610 INFO L132 InterpolantAutomaton]: Constructing interpolant automaton starting with 17 interpolants. [2018-03-29 20:13:56,610 INFO L133 InterpolantAutomaton]: CoverageRelationStatistics Valid=54, Invalid=218, Unknown=0, NotChecked=0, Total=272 [2018-03-29 20:13:56,610 INFO L87 Difference]: Start difference. First operand 148 states and 158 transitions. Second operand 17 states. [2018-03-29 20:13:57,059 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-03-29 20:13:57,059 INFO L93 Difference]: Finished difference Result 149 states and 158 transitions. [2018-03-29 20:13:57,059 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 19 states. [2018-03-29 20:13:57,059 INFO L78 Accepts]: Start accepts. Automaton has 17 states. Word has length 74 [2018-03-29 20:13:57,059 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-03-29 20:13:57,060 INFO L225 Difference]: With dead ends: 149 [2018-03-29 20:13:57,060 INFO L226 Difference]: Without dead ends: 148 [2018-03-29 20:13:57,061 INFO L567 BasicCegarLoop]: 0 DeclaredPredicates, 163 GetRequests, 128 SyntacticMatches, 5 SemanticMatches, 30 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 180 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=231, Invalid=761, Unknown=0, NotChecked=0, Total=992 [2018-03-29 20:13:57,061 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 148 states. [2018-03-29 20:13:57,072 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 148 to 148. [2018-03-29 20:13:57,072 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 148 states. [2018-03-29 20:13:57,073 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 148 states to 148 states and 157 transitions. [2018-03-29 20:13:57,073 INFO L78 Accepts]: Start accepts. Automaton has 148 states and 157 transitions. Word has length 74 [2018-03-29 20:13:57,073 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-03-29 20:13:57,073 INFO L459 AbstractCegarLoop]: Abstraction has 148 states and 157 transitions. [2018-03-29 20:13:57,073 INFO L460 AbstractCegarLoop]: Interpolant automaton has 17 states. [2018-03-29 20:13:57,073 INFO L276 IsEmpty]: Start isEmpty. Operand 148 states and 157 transitions. [2018-03-29 20:13:57,074 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 85 [2018-03-29 20:13:57,074 INFO L347 BasicCegarLoop]: Found error trace [2018-03-29 20:13:57,074 INFO L355 BasicCegarLoop]: trace histogram [7, 6, 6, 5, 5, 5, 5, 5, 5, 5, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-03-29 20:13:57,074 INFO L408 AbstractCegarLoop]: === Iteration 12 === [__U_MULTI_fbubblesort_alloca_true_valid_memsafety_true_termination_i__bubbleSortErr0RequiresViolation, __U_MULTI_fbubblesort_alloca_true_valid_memsafety_true_termination_i__bubbleSortErr9RequiresViolation, __U_MULTI_fbubblesort_alloca_true_valid_memsafety_true_termination_i__bubbleSortErr2RequiresViolation, __U_MULTI_fbubblesort_alloca_true_valid_memsafety_true_termination_i__bubbleSortErr10RequiresViolation, __U_MULTI_fbubblesort_alloca_true_valid_memsafety_true_termination_i__bubbleSortErr6RequiresViolation, __U_MULTI_fbubblesort_alloca_true_valid_memsafety_true_termination_i__bubbleSortErr1RequiresViolation, __U_MULTI_fbubblesort_alloca_true_valid_memsafety_true_termination_i__bubbleSortErr7RequiresViolation, __U_MULTI_fbubblesort_alloca_true_valid_memsafety_true_termination_i__bubbleSortErr11RequiresViolation, __U_MULTI_fbubblesort_alloca_true_valid_memsafety_true_termination_i__bubbleSortErr8RequiresViolation, __U_MULTI_fbubblesort_alloca_true_valid_memsafety_true_termination_i__bubbleSortErr4RequiresViolation, __U_MULTI_fbubblesort_alloca_true_valid_memsafety_true_termination_i__bubbleSortErr5RequiresViolation, __U_MULTI_fbubblesort_alloca_true_valid_memsafety_true_termination_i__bubbleSortErr3RequiresViolation, mainErr0EnsuresViolationMEMORY_LEAK]=== [2018-03-29 20:13:57,075 INFO L82 PathProgramCache]: Analyzing trace with hash 1123581955, now seen corresponding path program 4 times No working directory specified, using /storage/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 13 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 13 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2018-03-29 20:13:57,080 INFO L68 tionRefinementEngine]: Using refinement strategy FixedRefinementStrategy [2018-03-29 20:13:57,109 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-03-29 20:13:57,112 INFO L270 TraceCheckSpWp]: Computing forward predicates... [2018-03-29 20:13:57,218 INFO L134 CoverageAnalysis]: Checked inductivity of 135 backedges. 27 proven. 108 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-03-29 20:13:57,218 INFO L314 TraceCheckSpWp]: Computing backward predicates... [2018-03-29 20:13:57,346 INFO L134 CoverageAnalysis]: Checked inductivity of 135 backedges. 27 proven. 108 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-03-29 20:13:57,370 INFO L320 seRefinementStrategy]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2018-03-29 20:13:57,370 INFO L335 seRefinementStrategy]: Number of different interpolants: perfect sequences [] imperfect sequences [17, 17] total 22 [2018-03-29 20:13:57,371 INFO L442 AbstractCegarLoop]: Interpolant automaton has 22 states [2018-03-29 20:13:57,371 INFO L132 InterpolantAutomaton]: Constructing interpolant automaton starting with 22 interpolants. [2018-03-29 20:13:57,371 INFO L133 InterpolantAutomaton]: CoverageRelationStatistics Valid=78, Invalid=384, Unknown=0, NotChecked=0, Total=462 [2018-03-29 20:13:57,372 INFO L87 Difference]: Start difference. First operand 148 states and 157 transitions. Second operand 22 states. [2018-03-29 20:13:57,807 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-03-29 20:13:57,807 INFO L93 Difference]: Finished difference Result 332 states and 353 transitions. [2018-03-29 20:13:57,807 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 24 states. [2018-03-29 20:13:57,807 INFO L78 Accepts]: Start accepts. Automaton has 22 states. Word has length 84 [2018-03-29 20:13:57,808 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-03-29 20:13:57,808 INFO L225 Difference]: With dead ends: 332 [2018-03-29 20:13:57,808 INFO L226 Difference]: Without dead ends: 220 [2018-03-29 20:13:57,809 INFO L567 BasicCegarLoop]: 0 DeclaredPredicates, 185 GetRequests, 138 SyntacticMatches, 10 SemanticMatches, 37 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 346 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=290, Invalid=1192, Unknown=0, NotChecked=0, Total=1482 [2018-03-29 20:13:57,809 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 220 states. [2018-03-29 20:13:57,822 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 220 to 186. [2018-03-29 20:13:57,823 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 186 states. [2018-03-29 20:13:57,823 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 186 states to 186 states and 198 transitions. [2018-03-29 20:13:57,824 INFO L78 Accepts]: Start accepts. Automaton has 186 states and 198 transitions. Word has length 84 [2018-03-29 20:13:57,824 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-03-29 20:13:57,824 INFO L459 AbstractCegarLoop]: Abstraction has 186 states and 198 transitions. [2018-03-29 20:13:57,824 INFO L460 AbstractCegarLoop]: Interpolant automaton has 22 states. [2018-03-29 20:13:57,824 INFO L276 IsEmpty]: Start isEmpty. Operand 186 states and 198 transitions. [2018-03-29 20:13:57,825 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 95 [2018-03-29 20:13:57,826 INFO L347 BasicCegarLoop]: Found error trace [2018-03-29 20:13:57,826 INFO L355 BasicCegarLoop]: trace histogram [8, 7, 7, 6, 6, 6, 6, 6, 6, 6, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-03-29 20:13:57,826 INFO L408 AbstractCegarLoop]: === Iteration 13 === [__U_MULTI_fbubblesort_alloca_true_valid_memsafety_true_termination_i__bubbleSortErr0RequiresViolation, __U_MULTI_fbubblesort_alloca_true_valid_memsafety_true_termination_i__bubbleSortErr9RequiresViolation, __U_MULTI_fbubblesort_alloca_true_valid_memsafety_true_termination_i__bubbleSortErr2RequiresViolation, __U_MULTI_fbubblesort_alloca_true_valid_memsafety_true_termination_i__bubbleSortErr10RequiresViolation, __U_MULTI_fbubblesort_alloca_true_valid_memsafety_true_termination_i__bubbleSortErr6RequiresViolation, __U_MULTI_fbubblesort_alloca_true_valid_memsafety_true_termination_i__bubbleSortErr1RequiresViolation, __U_MULTI_fbubblesort_alloca_true_valid_memsafety_true_termination_i__bubbleSortErr7RequiresViolation, __U_MULTI_fbubblesort_alloca_true_valid_memsafety_true_termination_i__bubbleSortErr11RequiresViolation, __U_MULTI_fbubblesort_alloca_true_valid_memsafety_true_termination_i__bubbleSortErr8RequiresViolation, __U_MULTI_fbubblesort_alloca_true_valid_memsafety_true_termination_i__bubbleSortErr4RequiresViolation, __U_MULTI_fbubblesort_alloca_true_valid_memsafety_true_termination_i__bubbleSortErr5RequiresViolation, __U_MULTI_fbubblesort_alloca_true_valid_memsafety_true_termination_i__bubbleSortErr3RequiresViolation, mainErr0EnsuresViolationMEMORY_LEAK]=== [2018-03-29 20:13:57,826 INFO L82 PathProgramCache]: Analyzing trace with hash -1537656337, now seen corresponding path program 5 times No working directory specified, using /storage/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 14 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 14 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2018-03-29 20:13:57,835 INFO L68 tionRefinementEngine]: Using refinement strategy FixedRefinementStrategy [2018-03-29 20:13:57,866 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-03-29 20:13:57,870 INFO L270 TraceCheckSpWp]: Computing forward predicates... [2018-03-29 20:13:58,068 INFO L134 CoverageAnalysis]: Checked inductivity of 191 backedges. 63 proven. 128 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-03-29 20:13:58,068 INFO L314 TraceCheckSpWp]: Computing backward predicates... [2018-03-29 20:13:58,240 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 [2018-03-29 20:13:58,240 INFO L267 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2018-03-29 20:13:58,243 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. [2018-03-29 20:13:58,243 INFO L202 ElimStorePlain]: Needed 2 recursive calls to eliminate 3 variables, input treesize:26, output treesize:13 [2018-03-29 20:13:58,303 INFO L134 CoverageAnalysis]: Checked inductivity of 191 backedges. 42 proven. 149 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-03-29 20:13:58,324 INFO L320 seRefinementStrategy]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2018-03-29 20:13:58,324 INFO L335 seRefinementStrategy]: Number of different interpolants: perfect sequences [] imperfect sequences [15, 15] total 22 [2018-03-29 20:13:58,325 INFO L442 AbstractCegarLoop]: Interpolant automaton has 23 states [2018-03-29 20:13:58,325 INFO L132 InterpolantAutomaton]: Constructing interpolant automaton starting with 23 interpolants. [2018-03-29 20:13:58,325 INFO L133 InterpolantAutomaton]: CoverageRelationStatistics Valid=86, Invalid=420, Unknown=0, NotChecked=0, Total=506 [2018-03-29 20:13:58,325 INFO L87 Difference]: Start difference. First operand 186 states and 198 transitions. Second operand 23 states. [2018-03-29 20:13:59,073 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-03-29 20:13:59,073 INFO L93 Difference]: Finished difference Result 187 states and 198 transitions. [2018-03-29 20:13:59,073 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 26 states. [2018-03-29 20:13:59,073 INFO L78 Accepts]: Start accepts. Automaton has 23 states. Word has length 94 [2018-03-29 20:13:59,074 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-03-29 20:13:59,075 INFO L225 Difference]: With dead ends: 187 [2018-03-29 20:13:59,075 INFO L226 Difference]: Without dead ends: 186 [2018-03-29 20:13:59,076 INFO L567 BasicCegarLoop]: 0 DeclaredPredicates, 209 GetRequests, 160 SyntacticMatches, 7 SemanticMatches, 42 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 442 ImplicationChecksByTransitivity, 0.6s TimeCoverageRelationStatistics Valid=386, Invalid=1506, Unknown=0, NotChecked=0, Total=1892 [2018-03-29 20:13:59,076 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 186 states. [2018-03-29 20:13:59,088 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 186 to 186. [2018-03-29 20:13:59,088 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 186 states. [2018-03-29 20:13:59,090 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 186 states to 186 states and 197 transitions. [2018-03-29 20:13:59,090 INFO L78 Accepts]: Start accepts. Automaton has 186 states and 197 transitions. Word has length 94 [2018-03-29 20:13:59,090 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-03-29 20:13:59,090 INFO L459 AbstractCegarLoop]: Abstraction has 186 states and 197 transitions. [2018-03-29 20:13:59,090 INFO L460 AbstractCegarLoop]: Interpolant automaton has 23 states. [2018-03-29 20:13:59,090 INFO L276 IsEmpty]: Start isEmpty. Operand 186 states and 197 transitions. [2018-03-29 20:13:59,091 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 105 [2018-03-29 20:13:59,091 INFO L347 BasicCegarLoop]: Found error trace [2018-03-29 20:13:59,091 INFO L355 BasicCegarLoop]: trace histogram [9, 8, 8, 7, 7, 7, 7, 7, 7, 7, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-03-29 20:13:59,091 INFO L408 AbstractCegarLoop]: === Iteration 14 === [__U_MULTI_fbubblesort_alloca_true_valid_memsafety_true_termination_i__bubbleSortErr0RequiresViolation, __U_MULTI_fbubblesort_alloca_true_valid_memsafety_true_termination_i__bubbleSortErr9RequiresViolation, __U_MULTI_fbubblesort_alloca_true_valid_memsafety_true_termination_i__bubbleSortErr2RequiresViolation, __U_MULTI_fbubblesort_alloca_true_valid_memsafety_true_termination_i__bubbleSortErr10RequiresViolation, __U_MULTI_fbubblesort_alloca_true_valid_memsafety_true_termination_i__bubbleSortErr6RequiresViolation, __U_MULTI_fbubblesort_alloca_true_valid_memsafety_true_termination_i__bubbleSortErr1RequiresViolation, __U_MULTI_fbubblesort_alloca_true_valid_memsafety_true_termination_i__bubbleSortErr7RequiresViolation, __U_MULTI_fbubblesort_alloca_true_valid_memsafety_true_termination_i__bubbleSortErr11RequiresViolation, __U_MULTI_fbubblesort_alloca_true_valid_memsafety_true_termination_i__bubbleSortErr8RequiresViolation, __U_MULTI_fbubblesort_alloca_true_valid_memsafety_true_termination_i__bubbleSortErr4RequiresViolation, __U_MULTI_fbubblesort_alloca_true_valid_memsafety_true_termination_i__bubbleSortErr5RequiresViolation, __U_MULTI_fbubblesort_alloca_true_valid_memsafety_true_termination_i__bubbleSortErr3RequiresViolation, mainErr0EnsuresViolationMEMORY_LEAK]=== [2018-03-29 20:13:59,092 INFO L82 PathProgramCache]: Analyzing trace with hash -1106221221, now seen corresponding path program 6 times No working directory specified, using /storage/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 15 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 15 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2018-03-29 20:13:59,097 INFO L68 tionRefinementEngine]: Using refinement strategy FixedRefinementStrategy [2018-03-29 20:13:59,126 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-03-29 20:13:59,128 INFO L270 TraceCheckSpWp]: Computing forward predicates... [2018-03-29 20:13:59,259 INFO L134 CoverageAnalysis]: Checked inductivity of 257 backedges. 53 proven. 204 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-03-29 20:13:59,259 INFO L314 TraceCheckSpWp]: Computing backward predicates... [2018-03-29 20:13:59,389 INFO L134 CoverageAnalysis]: Checked inductivity of 257 backedges. 53 proven. 204 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-03-29 20:13:59,413 INFO L320 seRefinementStrategy]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2018-03-29 20:13:59,413 INFO L335 seRefinementStrategy]: Number of different interpolants: perfect sequences [] imperfect sequences [21, 21] total 28 [2018-03-29 20:13:59,414 INFO L442 AbstractCegarLoop]: Interpolant automaton has 28 states [2018-03-29 20:13:59,414 INFO L132 InterpolantAutomaton]: Constructing interpolant automaton starting with 28 interpolants. [2018-03-29 20:13:59,414 INFO L133 InterpolantAutomaton]: CoverageRelationStatistics Valid=118, Invalid=638, Unknown=0, NotChecked=0, Total=756 [2018-03-29 20:13:59,415 INFO L87 Difference]: Start difference. First operand 186 states and 197 transitions. Second operand 28 states. [2018-03-29 20:13:59,859 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-03-29 20:13:59,860 INFO L93 Difference]: Finished difference Result 408 states and 433 transitions. [2018-03-29 20:13:59,860 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 30 states. [2018-03-29 20:13:59,860 INFO L78 Accepts]: Start accepts. Automaton has 28 states. Word has length 104 [2018-03-29 20:13:59,861 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-03-29 20:13:59,862 INFO L225 Difference]: With dead ends: 408 [2018-03-29 20:13:59,862 INFO L226 Difference]: Without dead ends: 258 [2018-03-29 20:13:59,864 INFO L567 BasicCegarLoop]: 0 DeclaredPredicates, 230 GetRequests, 170 SyntacticMatches, 12 SemanticMatches, 48 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 616 ImplicationChecksByTransitivity, 0.4s TimeCoverageRelationStatistics Valid=454, Invalid=1996, Unknown=0, NotChecked=0, Total=2450 [2018-03-29 20:13:59,864 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 258 states. [2018-03-29 20:13:59,880 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 258 to 224. [2018-03-29 20:13:59,880 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 224 states. [2018-03-29 20:13:59,882 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 224 states to 224 states and 238 transitions. [2018-03-29 20:13:59,882 INFO L78 Accepts]: Start accepts. Automaton has 224 states and 238 transitions. Word has length 104 [2018-03-29 20:13:59,882 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-03-29 20:13:59,882 INFO L459 AbstractCegarLoop]: Abstraction has 224 states and 238 transitions. [2018-03-29 20:13:59,882 INFO L460 AbstractCegarLoop]: Interpolant automaton has 28 states. [2018-03-29 20:13:59,883 INFO L276 IsEmpty]: Start isEmpty. Operand 224 states and 238 transitions. [2018-03-29 20:13:59,884 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 115 [2018-03-29 20:13:59,884 INFO L347 BasicCegarLoop]: Found error trace [2018-03-29 20:13:59,884 INFO L355 BasicCegarLoop]: trace histogram [10, 9, 9, 8, 8, 8, 8, 8, 8, 8, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-03-29 20:13:59,884 INFO L408 AbstractCegarLoop]: === Iteration 15 === [__U_MULTI_fbubblesort_alloca_true_valid_memsafety_true_termination_i__bubbleSortErr0RequiresViolation, __U_MULTI_fbubblesort_alloca_true_valid_memsafety_true_termination_i__bubbleSortErr9RequiresViolation, __U_MULTI_fbubblesort_alloca_true_valid_memsafety_true_termination_i__bubbleSortErr2RequiresViolation, __U_MULTI_fbubblesort_alloca_true_valid_memsafety_true_termination_i__bubbleSortErr10RequiresViolation, __U_MULTI_fbubblesort_alloca_true_valid_memsafety_true_termination_i__bubbleSortErr6RequiresViolation, __U_MULTI_fbubblesort_alloca_true_valid_memsafety_true_termination_i__bubbleSortErr1RequiresViolation, __U_MULTI_fbubblesort_alloca_true_valid_memsafety_true_termination_i__bubbleSortErr7RequiresViolation, __U_MULTI_fbubblesort_alloca_true_valid_memsafety_true_termination_i__bubbleSortErr11RequiresViolation, __U_MULTI_fbubblesort_alloca_true_valid_memsafety_true_termination_i__bubbleSortErr8RequiresViolation, __U_MULTI_fbubblesort_alloca_true_valid_memsafety_true_termination_i__bubbleSortErr4RequiresViolation, __U_MULTI_fbubblesort_alloca_true_valid_memsafety_true_termination_i__bubbleSortErr5RequiresViolation, __U_MULTI_fbubblesort_alloca_true_valid_memsafety_true_termination_i__bubbleSortErr3RequiresViolation, mainErr0EnsuresViolationMEMORY_LEAK]=== [2018-03-29 20:13:59,885 INFO L82 PathProgramCache]: Analyzing trace with hash -706940089, now seen corresponding path program 7 times No working directory specified, using /storage/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 16 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 16 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2018-03-29 20:13:59,893 INFO L68 tionRefinementEngine]: Using refinement strategy FixedRefinementStrategy [2018-03-29 20:13:59,930 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-03-29 20:13:59,933 INFO L270 TraceCheckSpWp]: Computing forward predicates... [2018-03-29 20:14:00,265 INFO L134 CoverageAnalysis]: Checked inductivity of 333 backedges. 105 proven. 228 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-03-29 20:14:00,265 INFO L314 TraceCheckSpWp]: Computing backward predicates... [2018-03-29 20:14:00,516 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 [2018-03-29 20:14:00,517 INFO L267 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2018-03-29 20:14:00,520 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. [2018-03-29 20:14:00,520 INFO L202 ElimStorePlain]: Needed 2 recursive calls to eliminate 3 variables, input treesize:26, output treesize:13 [2018-03-29 20:14:00,582 INFO L134 CoverageAnalysis]: Checked inductivity of 333 backedges. 75 proven. 258 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-03-29 20:14:00,603 INFO L320 seRefinementStrategy]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2018-03-29 20:14:00,603 INFO L335 seRefinementStrategy]: Number of different interpolants: perfect sequences [] imperfect sequences [19, 19] total 28 [2018-03-29 20:14:00,603 INFO L442 AbstractCegarLoop]: Interpolant automaton has 29 states [2018-03-29 20:14:00,603 INFO L132 InterpolantAutomaton]: Constructing interpolant automaton starting with 29 interpolants. [2018-03-29 20:14:00,604 INFO L133 InterpolantAutomaton]: CoverageRelationStatistics Valid=126, Invalid=686, Unknown=0, NotChecked=0, Total=812 [2018-03-29 20:14:00,604 INFO L87 Difference]: Start difference. First operand 224 states and 238 transitions. Second operand 29 states. [2018-03-29 20:14:01,513 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-03-29 20:14:01,513 INFO L93 Difference]: Finished difference Result 225 states and 238 transitions. [2018-03-29 20:14:01,513 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 33 states. [2018-03-29 20:14:01,513 INFO L78 Accepts]: Start accepts. Automaton has 29 states. Word has length 114 [2018-03-29 20:14:01,514 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-03-29 20:14:01,515 INFO L225 Difference]: With dead ends: 225 [2018-03-29 20:14:01,515 INFO L226 Difference]: Without dead ends: 224 [2018-03-29 20:14:01,516 INFO L567 BasicCegarLoop]: 0 DeclaredPredicates, 255 GetRequests, 192 SyntacticMatches, 9 SemanticMatches, 54 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 819 ImplicationChecksByTransitivity, 0.9s TimeCoverageRelationStatistics Valid=581, Invalid=2499, Unknown=0, NotChecked=0, Total=3080 [2018-03-29 20:14:01,516 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 224 states. [2018-03-29 20:14:01,532 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 224 to 224. [2018-03-29 20:14:01,532 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 224 states. [2018-03-29 20:14:01,533 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 224 states to 224 states and 237 transitions. [2018-03-29 20:14:01,533 INFO L78 Accepts]: Start accepts. Automaton has 224 states and 237 transitions. Word has length 114 [2018-03-29 20:14:01,533 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-03-29 20:14:01,533 INFO L459 AbstractCegarLoop]: Abstraction has 224 states and 237 transitions. [2018-03-29 20:14:01,533 INFO L460 AbstractCegarLoop]: Interpolant automaton has 29 states. [2018-03-29 20:14:01,533 INFO L276 IsEmpty]: Start isEmpty. Operand 224 states and 237 transitions. [2018-03-29 20:14:01,534 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 125 [2018-03-29 20:14:01,534 INFO L347 BasicCegarLoop]: Found error trace [2018-03-29 20:14:01,535 INFO L355 BasicCegarLoop]: trace histogram [11, 10, 10, 9, 9, 9, 9, 9, 9, 9, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-03-29 20:14:01,535 INFO L408 AbstractCegarLoop]: === Iteration 16 === [__U_MULTI_fbubblesort_alloca_true_valid_memsafety_true_termination_i__bubbleSortErr0RequiresViolation, __U_MULTI_fbubblesort_alloca_true_valid_memsafety_true_termination_i__bubbleSortErr9RequiresViolation, __U_MULTI_fbubblesort_alloca_true_valid_memsafety_true_termination_i__bubbleSortErr2RequiresViolation, __U_MULTI_fbubblesort_alloca_true_valid_memsafety_true_termination_i__bubbleSortErr10RequiresViolation, __U_MULTI_fbubblesort_alloca_true_valid_memsafety_true_termination_i__bubbleSortErr6RequiresViolation, __U_MULTI_fbubblesort_alloca_true_valid_memsafety_true_termination_i__bubbleSortErr1RequiresViolation, __U_MULTI_fbubblesort_alloca_true_valid_memsafety_true_termination_i__bubbleSortErr7RequiresViolation, __U_MULTI_fbubblesort_alloca_true_valid_memsafety_true_termination_i__bubbleSortErr11RequiresViolation, __U_MULTI_fbubblesort_alloca_true_valid_memsafety_true_termination_i__bubbleSortErr8RequiresViolation, __U_MULTI_fbubblesort_alloca_true_valid_memsafety_true_termination_i__bubbleSortErr4RequiresViolation, __U_MULTI_fbubblesort_alloca_true_valid_memsafety_true_termination_i__bubbleSortErr5RequiresViolation, __U_MULTI_fbubblesort_alloca_true_valid_memsafety_true_termination_i__bubbleSortErr3RequiresViolation, mainErr0EnsuresViolationMEMORY_LEAK]=== [2018-03-29 20:14:01,535 INFO L82 PathProgramCache]: Analyzing trace with hash -1684122957, now seen corresponding path program 8 times No working directory specified, using /storage/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 17 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 17 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2018-03-29 20:14:01,544 INFO L68 tionRefinementEngine]: Using refinement strategy FixedRefinementStrategy [2018-03-29 20:14:01,577 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-03-29 20:14:01,579 INFO L270 TraceCheckSpWp]: Computing forward predicates... [2018-03-29 20:14:01,752 INFO L134 CoverageAnalysis]: Checked inductivity of 419 backedges. 89 proven. 330 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-03-29 20:14:01,752 INFO L314 TraceCheckSpWp]: Computing backward predicates... [2018-03-29 20:14:01,929 INFO L134 CoverageAnalysis]: Checked inductivity of 419 backedges. 89 proven. 330 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-03-29 20:14:01,949 INFO L320 seRefinementStrategy]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2018-03-29 20:14:01,950 INFO L335 seRefinementStrategy]: Number of different interpolants: perfect sequences [] imperfect sequences [25, 25] total 34 [2018-03-29 20:14:01,950 INFO L442 AbstractCegarLoop]: Interpolant automaton has 34 states [2018-03-29 20:14:01,950 INFO L132 InterpolantAutomaton]: Constructing interpolant automaton starting with 34 interpolants. [2018-03-29 20:14:01,951 INFO L133 InterpolantAutomaton]: CoverageRelationStatistics Valid=166, Invalid=956, Unknown=0, NotChecked=0, Total=1122 [2018-03-29 20:14:01,951 INFO L87 Difference]: Start difference. First operand 224 states and 237 transitions. Second operand 34 states. [2018-03-29 20:14:02,564 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-03-29 20:14:02,565 INFO L93 Difference]: Finished difference Result 484 states and 513 transitions. [2018-03-29 20:14:02,565 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 36 states. [2018-03-29 20:14:02,565 INFO L78 Accepts]: Start accepts. Automaton has 34 states. Word has length 124 [2018-03-29 20:14:02,565 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-03-29 20:14:02,566 INFO L225 Difference]: With dead ends: 484 [2018-03-29 20:14:02,566 INFO L226 Difference]: Without dead ends: 296 [2018-03-29 20:14:02,567 INFO L567 BasicCegarLoop]: 0 DeclaredPredicates, 275 GetRequests, 202 SyntacticMatches, 14 SemanticMatches, 59 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 964 ImplicationChecksByTransitivity, 0.5s TimeCoverageRelationStatistics Valid=653, Invalid=3007, Unknown=0, NotChecked=0, Total=3660 [2018-03-29 20:14:02,568 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 296 states. [2018-03-29 20:14:02,582 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 296 to 262. [2018-03-29 20:14:02,582 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 262 states. [2018-03-29 20:14:02,583 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 262 states to 262 states and 278 transitions. [2018-03-29 20:14:02,583 INFO L78 Accepts]: Start accepts. Automaton has 262 states and 278 transitions. Word has length 124 [2018-03-29 20:14:02,583 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-03-29 20:14:02,584 INFO L459 AbstractCegarLoop]: Abstraction has 262 states and 278 transitions. [2018-03-29 20:14:02,584 INFO L460 AbstractCegarLoop]: Interpolant automaton has 34 states. [2018-03-29 20:14:02,584 INFO L276 IsEmpty]: Start isEmpty. Operand 262 states and 278 transitions. [2018-03-29 20:14:02,585 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 135 [2018-03-29 20:14:02,585 INFO L347 BasicCegarLoop]: Found error trace [2018-03-29 20:14:02,585 INFO L355 BasicCegarLoop]: trace histogram [12, 11, 11, 10, 10, 10, 10, 10, 10, 10, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-03-29 20:14:02,585 INFO L408 AbstractCegarLoop]: === Iteration 17 === [__U_MULTI_fbubblesort_alloca_true_valid_memsafety_true_termination_i__bubbleSortErr0RequiresViolation, __U_MULTI_fbubblesort_alloca_true_valid_memsafety_true_termination_i__bubbleSortErr9RequiresViolation, __U_MULTI_fbubblesort_alloca_true_valid_memsafety_true_termination_i__bubbleSortErr2RequiresViolation, __U_MULTI_fbubblesort_alloca_true_valid_memsafety_true_termination_i__bubbleSortErr10RequiresViolation, __U_MULTI_fbubblesort_alloca_true_valid_memsafety_true_termination_i__bubbleSortErr6RequiresViolation, __U_MULTI_fbubblesort_alloca_true_valid_memsafety_true_termination_i__bubbleSortErr1RequiresViolation, __U_MULTI_fbubblesort_alloca_true_valid_memsafety_true_termination_i__bubbleSortErr7RequiresViolation, __U_MULTI_fbubblesort_alloca_true_valid_memsafety_true_termination_i__bubbleSortErr11RequiresViolation, __U_MULTI_fbubblesort_alloca_true_valid_memsafety_true_termination_i__bubbleSortErr8RequiresViolation, __U_MULTI_fbubblesort_alloca_true_valid_memsafety_true_termination_i__bubbleSortErr4RequiresViolation, __U_MULTI_fbubblesort_alloca_true_valid_memsafety_true_termination_i__bubbleSortErr5RequiresViolation, __U_MULTI_fbubblesort_alloca_true_valid_memsafety_true_termination_i__bubbleSortErr3RequiresViolation, mainErr0EnsuresViolationMEMORY_LEAK]=== [2018-03-29 20:14:02,585 INFO L82 PathProgramCache]: Analyzing trace with hash 2142875807, now seen corresponding path program 9 times No working directory specified, using /storage/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 18 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 18 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2018-03-29 20:14:02,595 INFO L68 tionRefinementEngine]: Using refinement strategy FixedRefinementStrategy [2018-03-29 20:14:02,622 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-03-29 20:14:02,624 INFO L270 TraceCheckSpWp]: Computing forward predicates... [2018-03-29 20:14:02,897 INFO L134 CoverageAnalysis]: Checked inductivity of 515 backedges. 157 proven. 358 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-03-29 20:14:02,898 INFO L314 TraceCheckSpWp]: Computing backward predicates... [2018-03-29 20:14:03,167 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 [2018-03-29 20:14:03,167 INFO L267 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2018-03-29 20:14:03,170 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. [2018-03-29 20:14:03,171 INFO L202 ElimStorePlain]: Needed 2 recursive calls to eliminate 3 variables, input treesize:26, output treesize:13 [2018-03-29 20:14:03,258 INFO L134 CoverageAnalysis]: Checked inductivity of 515 backedges. 118 proven. 397 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-03-29 20:14:03,279 INFO L320 seRefinementStrategy]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2018-03-29 20:14:03,279 INFO L335 seRefinementStrategy]: Number of different interpolants: perfect sequences [] imperfect sequences [23, 23] total 34 [2018-03-29 20:14:03,279 INFO L442 AbstractCegarLoop]: Interpolant automaton has 35 states [2018-03-29 20:14:03,280 INFO L132 InterpolantAutomaton]: Constructing interpolant automaton starting with 35 interpolants. [2018-03-29 20:14:03,280 INFO L133 InterpolantAutomaton]: CoverageRelationStatistics Valid=174, Invalid=1016, Unknown=0, NotChecked=0, Total=1190 [2018-03-29 20:14:03,280 INFO L87 Difference]: Start difference. First operand 262 states and 278 transitions. Second operand 35 states. [2018-03-29 20:14:04,787 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-03-29 20:14:04,787 INFO L93 Difference]: Finished difference Result 263 states and 278 transitions. [2018-03-29 20:14:04,787 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 40 states. [2018-03-29 20:14:04,788 INFO L78 Accepts]: Start accepts. Automaton has 35 states. Word has length 134 [2018-03-29 20:14:04,788 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-03-29 20:14:04,789 INFO L225 Difference]: With dead ends: 263 [2018-03-29 20:14:04,789 INFO L226 Difference]: Without dead ends: 262 [2018-03-29 20:14:04,791 INFO L567 BasicCegarLoop]: 0 DeclaredPredicates, 301 GetRequests, 224 SyntacticMatches, 11 SemanticMatches, 66 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1311 ImplicationChecksByTransitivity, 1.0s TimeCoverageRelationStatistics Valid=816, Invalid=3740, Unknown=0, NotChecked=0, Total=4556 [2018-03-29 20:14:04,791 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 262 states. [2018-03-29 20:14:04,808 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 262 to 262. [2018-03-29 20:14:04,808 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 262 states. [2018-03-29 20:14:04,810 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 262 states to 262 states and 277 transitions. [2018-03-29 20:14:04,810 INFO L78 Accepts]: Start accepts. Automaton has 262 states and 277 transitions. Word has length 134 [2018-03-29 20:14:04,810 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-03-29 20:14:04,810 INFO L459 AbstractCegarLoop]: Abstraction has 262 states and 277 transitions. [2018-03-29 20:14:04,810 INFO L460 AbstractCegarLoop]: Interpolant automaton has 35 states. [2018-03-29 20:14:04,811 INFO L276 IsEmpty]: Start isEmpty. Operand 262 states and 277 transitions. [2018-03-29 20:14:04,812 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 145 [2018-03-29 20:14:04,812 INFO L347 BasicCegarLoop]: Found error trace [2018-03-29 20:14:04,812 INFO L355 BasicCegarLoop]: trace histogram [13, 12, 12, 11, 11, 11, 11, 11, 11, 11, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-03-29 20:14:04,812 INFO L408 AbstractCegarLoop]: === Iteration 18 === [__U_MULTI_fbubblesort_alloca_true_valid_memsafety_true_termination_i__bubbleSortErr0RequiresViolation, __U_MULTI_fbubblesort_alloca_true_valid_memsafety_true_termination_i__bubbleSortErr9RequiresViolation, __U_MULTI_fbubblesort_alloca_true_valid_memsafety_true_termination_i__bubbleSortErr2RequiresViolation, __U_MULTI_fbubblesort_alloca_true_valid_memsafety_true_termination_i__bubbleSortErr10RequiresViolation, __U_MULTI_fbubblesort_alloca_true_valid_memsafety_true_termination_i__bubbleSortErr6RequiresViolation, __U_MULTI_fbubblesort_alloca_true_valid_memsafety_true_termination_i__bubbleSortErr1RequiresViolation, __U_MULTI_fbubblesort_alloca_true_valid_memsafety_true_termination_i__bubbleSortErr7RequiresViolation, __U_MULTI_fbubblesort_alloca_true_valid_memsafety_true_termination_i__bubbleSortErr11RequiresViolation, __U_MULTI_fbubblesort_alloca_true_valid_memsafety_true_termination_i__bubbleSortErr8RequiresViolation, __U_MULTI_fbubblesort_alloca_true_valid_memsafety_true_termination_i__bubbleSortErr4RequiresViolation, __U_MULTI_fbubblesort_alloca_true_valid_memsafety_true_termination_i__bubbleSortErr5RequiresViolation, __U_MULTI_fbubblesort_alloca_true_valid_memsafety_true_termination_i__bubbleSortErr3RequiresViolation, mainErr0EnsuresViolationMEMORY_LEAK]=== [2018-03-29 20:14:04,812 INFO L82 PathProgramCache]: Analyzing trace with hash -1458552309, now seen corresponding path program 10 times No working directory specified, using /storage/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 19 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 19 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2018-03-29 20:14:04,822 INFO L68 tionRefinementEngine]: Using refinement strategy FixedRefinementStrategy [2018-03-29 20:14:04,858 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-03-29 20:14:04,861 INFO L270 TraceCheckSpWp]: Computing forward predicates... [2018-03-29 20:14:05,084 INFO L134 CoverageAnalysis]: Checked inductivity of 621 backedges. 135 proven. 486 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-03-29 20:14:05,084 INFO L314 TraceCheckSpWp]: Computing backward predicates... [2018-03-29 20:14:05,348 INFO L134 CoverageAnalysis]: Checked inductivity of 621 backedges. 135 proven. 486 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-03-29 20:14:05,369 INFO L320 seRefinementStrategy]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2018-03-29 20:14:05,369 INFO L335 seRefinementStrategy]: Number of different interpolants: perfect sequences [] imperfect sequences [29, 29] total 40 [2018-03-29 20:14:05,370 INFO L442 AbstractCegarLoop]: Interpolant automaton has 40 states [2018-03-29 20:14:05,370 INFO L132 InterpolantAutomaton]: Constructing interpolant automaton starting with 40 interpolants. [2018-03-29 20:14:05,370 INFO L133 InterpolantAutomaton]: CoverageRelationStatistics Valid=222, Invalid=1338, Unknown=0, NotChecked=0, Total=1560 [2018-03-29 20:14:05,371 INFO L87 Difference]: Start difference. First operand 262 states and 277 transitions. Second operand 40 states. [2018-03-29 20:14:07,253 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-03-29 20:14:07,253 INFO L93 Difference]: Finished difference Result 560 states and 593 transitions. [2018-03-29 20:14:07,254 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 42 states. [2018-03-29 20:14:07,254 INFO L78 Accepts]: Start accepts. Automaton has 40 states. Word has length 144 [2018-03-29 20:14:07,254 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-03-29 20:14:07,255 INFO L225 Difference]: With dead ends: 560 [2018-03-29 20:14:07,255 INFO L226 Difference]: Without dead ends: 334 [2018-03-29 20:14:07,257 INFO L567 BasicCegarLoop]: 0 DeclaredPredicates, 320 GetRequests, 234 SyntacticMatches, 16 SemanticMatches, 70 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1390 ImplicationChecksByTransitivity, 1.6s TimeCoverageRelationStatistics Valid=887, Invalid=4225, Unknown=0, NotChecked=0, Total=5112 [2018-03-29 20:14:07,257 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 334 states. [2018-03-29 20:14:07,282 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 334 to 300. [2018-03-29 20:14:07,282 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 300 states. [2018-03-29 20:14:07,283 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 300 states to 300 states and 318 transitions. [2018-03-29 20:14:07,284 INFO L78 Accepts]: Start accepts. Automaton has 300 states and 318 transitions. Word has length 144 [2018-03-29 20:14:07,284 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-03-29 20:14:07,284 INFO L459 AbstractCegarLoop]: Abstraction has 300 states and 318 transitions. [2018-03-29 20:14:07,284 INFO L460 AbstractCegarLoop]: Interpolant automaton has 40 states. [2018-03-29 20:14:07,284 INFO L276 IsEmpty]: Start isEmpty. Operand 300 states and 318 transitions. [2018-03-29 20:14:07,285 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 155 [2018-03-29 20:14:07,285 INFO L347 BasicCegarLoop]: Found error trace [2018-03-29 20:14:07,285 INFO L355 BasicCegarLoop]: trace histogram [14, 13, 13, 12, 12, 12, 12, 12, 12, 12, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-03-29 20:14:07,285 INFO L408 AbstractCegarLoop]: === Iteration 19 === [__U_MULTI_fbubblesort_alloca_true_valid_memsafety_true_termination_i__bubbleSortErr0RequiresViolation, __U_MULTI_fbubblesort_alloca_true_valid_memsafety_true_termination_i__bubbleSortErr9RequiresViolation, __U_MULTI_fbubblesort_alloca_true_valid_memsafety_true_termination_i__bubbleSortErr2RequiresViolation, __U_MULTI_fbubblesort_alloca_true_valid_memsafety_true_termination_i__bubbleSortErr10RequiresViolation, __U_MULTI_fbubblesort_alloca_true_valid_memsafety_true_termination_i__bubbleSortErr6RequiresViolation, __U_MULTI_fbubblesort_alloca_true_valid_memsafety_true_termination_i__bubbleSortErr1RequiresViolation, __U_MULTI_fbubblesort_alloca_true_valid_memsafety_true_termination_i__bubbleSortErr7RequiresViolation, __U_MULTI_fbubblesort_alloca_true_valid_memsafety_true_termination_i__bubbleSortErr11RequiresViolation, __U_MULTI_fbubblesort_alloca_true_valid_memsafety_true_termination_i__bubbleSortErr8RequiresViolation, __U_MULTI_fbubblesort_alloca_true_valid_memsafety_true_termination_i__bubbleSortErr4RequiresViolation, __U_MULTI_fbubblesort_alloca_true_valid_memsafety_true_termination_i__bubbleSortErr5RequiresViolation, __U_MULTI_fbubblesort_alloca_true_valid_memsafety_true_termination_i__bubbleSortErr3RequiresViolation, mainErr0EnsuresViolationMEMORY_LEAK]=== [2018-03-29 20:14:07,286 INFO L82 PathProgramCache]: Analyzing trace with hash -1612877321, now seen corresponding path program 11 times No working directory specified, using /storage/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 20 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 20 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2018-03-29 20:14:07,292 INFO L68 tionRefinementEngine]: Using refinement strategy FixedRefinementStrategy [2018-03-29 20:14:07,323 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-03-29 20:14:07,327 INFO L270 TraceCheckSpWp]: Computing forward predicates... [2018-03-29 20:14:07,664 INFO L134 CoverageAnalysis]: Checked inductivity of 737 backedges. 219 proven. 518 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-03-29 20:14:07,665 INFO L314 TraceCheckSpWp]: Computing backward predicates... [2018-03-29 20:14:07,984 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 [2018-03-29 20:14:07,985 INFO L267 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2018-03-29 20:14:07,987 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. [2018-03-29 20:14:07,987 INFO L202 ElimStorePlain]: Needed 2 recursive calls to eliminate 3 variables, input treesize:26, output treesize:13 [2018-03-29 20:14:08,092 INFO L134 CoverageAnalysis]: Checked inductivity of 737 backedges. 171 proven. 566 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-03-29 20:14:08,113 INFO L320 seRefinementStrategy]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2018-03-29 20:14:08,113 INFO L335 seRefinementStrategy]: Number of different interpolants: perfect sequences [] imperfect sequences [27, 27] total 40 [2018-03-29 20:14:08,113 INFO L442 AbstractCegarLoop]: Interpolant automaton has 41 states [2018-03-29 20:14:08,114 INFO L132 InterpolantAutomaton]: Constructing interpolant automaton starting with 41 interpolants. [2018-03-29 20:14:08,114 INFO L133 InterpolantAutomaton]: CoverageRelationStatistics Valid=230, Invalid=1410, Unknown=0, NotChecked=0, Total=1640 [2018-03-29 20:14:08,114 INFO L87 Difference]: Start difference. First operand 300 states and 318 transitions. Second operand 41 states. [2018-03-29 20:14:09,820 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-03-29 20:14:09,820 INFO L93 Difference]: Finished difference Result 301 states and 318 transitions. [2018-03-29 20:14:09,851 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 47 states. [2018-03-29 20:14:09,851 INFO L78 Accepts]: Start accepts. Automaton has 41 states. Word has length 154 [2018-03-29 20:14:09,852 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-03-29 20:14:09,852 INFO L225 Difference]: With dead ends: 301 [2018-03-29 20:14:09,852 INFO L226 Difference]: Without dead ends: 300 [2018-03-29 20:14:09,854 INFO L567 BasicCegarLoop]: 0 DeclaredPredicates, 347 GetRequests, 256 SyntacticMatches, 13 SemanticMatches, 78 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1918 ImplicationChecksByTransitivity, 1.2s TimeCoverageRelationStatistics Valid=1091, Invalid=5229, Unknown=0, NotChecked=0, Total=6320 [2018-03-29 20:14:09,854 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 300 states. [2018-03-29 20:14:09,870 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 300 to 300. [2018-03-29 20:14:09,870 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 300 states. [2018-03-29 20:14:09,871 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 300 states to 300 states and 317 transitions. [2018-03-29 20:14:09,871 INFO L78 Accepts]: Start accepts. Automaton has 300 states and 317 transitions. Word has length 154 [2018-03-29 20:14:09,871 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-03-29 20:14:09,871 INFO L459 AbstractCegarLoop]: Abstraction has 300 states and 317 transitions. [2018-03-29 20:14:09,871 INFO L460 AbstractCegarLoop]: Interpolant automaton has 41 states. [2018-03-29 20:14:09,871 INFO L276 IsEmpty]: Start isEmpty. Operand 300 states and 317 transitions. [2018-03-29 20:14:09,872 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 165 [2018-03-29 20:14:09,872 INFO L347 BasicCegarLoop]: Found error trace [2018-03-29 20:14:09,872 INFO L355 BasicCegarLoop]: trace histogram [15, 14, 14, 13, 13, 13, 13, 13, 13, 13, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-03-29 20:14:09,872 INFO L408 AbstractCegarLoop]: === Iteration 20 === [__U_MULTI_fbubblesort_alloca_true_valid_memsafety_true_termination_i__bubbleSortErr0RequiresViolation, __U_MULTI_fbubblesort_alloca_true_valid_memsafety_true_termination_i__bubbleSortErr9RequiresViolation, __U_MULTI_fbubblesort_alloca_true_valid_memsafety_true_termination_i__bubbleSortErr2RequiresViolation, __U_MULTI_fbubblesort_alloca_true_valid_memsafety_true_termination_i__bubbleSortErr10RequiresViolation, __U_MULTI_fbubblesort_alloca_true_valid_memsafety_true_termination_i__bubbleSortErr6RequiresViolation, __U_MULTI_fbubblesort_alloca_true_valid_memsafety_true_termination_i__bubbleSortErr1RequiresViolation, __U_MULTI_fbubblesort_alloca_true_valid_memsafety_true_termination_i__bubbleSortErr7RequiresViolation, __U_MULTI_fbubblesort_alloca_true_valid_memsafety_true_termination_i__bubbleSortErr11RequiresViolation, __U_MULTI_fbubblesort_alloca_true_valid_memsafety_true_termination_i__bubbleSortErr8RequiresViolation, __U_MULTI_fbubblesort_alloca_true_valid_memsafety_true_termination_i__bubbleSortErr4RequiresViolation, __U_MULTI_fbubblesort_alloca_true_valid_memsafety_true_termination_i__bubbleSortErr5RequiresViolation, __U_MULTI_fbubblesort_alloca_true_valid_memsafety_true_termination_i__bubbleSortErr3RequiresViolation, mainErr0EnsuresViolationMEMORY_LEAK]=== [2018-03-29 20:14:09,872 INFO L82 PathProgramCache]: Analyzing trace with hash -757844637, now seen corresponding path program 12 times No working directory specified, using /storage/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 21 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 21 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2018-03-29 20:14:09,889 INFO L68 tionRefinementEngine]: Using refinement strategy FixedRefinementStrategy [2018-03-29 20:14:09,930 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-03-29 20:14:09,933 INFO L270 TraceCheckSpWp]: Computing forward predicates... [2018-03-29 20:14:10,283 INFO L134 CoverageAnalysis]: Checked inductivity of 863 backedges. 191 proven. 672 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-03-29 20:14:10,283 INFO L314 TraceCheckSpWp]: Computing backward predicates... [2018-03-29 20:14:10,637 INFO L134 CoverageAnalysis]: Checked inductivity of 863 backedges. 191 proven. 672 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-03-29 20:14:10,659 INFO L320 seRefinementStrategy]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2018-03-29 20:14:10,660 INFO L335 seRefinementStrategy]: Number of different interpolants: perfect sequences [] imperfect sequences [33, 33] total 46 [2018-03-29 20:14:10,661 INFO L442 AbstractCegarLoop]: Interpolant automaton has 46 states [2018-03-29 20:14:10,661 INFO L132 InterpolantAutomaton]: Constructing interpolant automaton starting with 46 interpolants. [2018-03-29 20:14:10,663 INFO L133 InterpolantAutomaton]: CoverageRelationStatistics Valid=286, Invalid=1784, Unknown=0, NotChecked=0, Total=2070 [2018-03-29 20:14:10,663 INFO L87 Difference]: Start difference. First operand 300 states and 317 transitions. Second operand 46 states. [2018-03-29 20:14:11,540 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-03-29 20:14:11,541 INFO L93 Difference]: Finished difference Result 636 states and 673 transitions. [2018-03-29 20:14:11,541 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 48 states. [2018-03-29 20:14:11,541 INFO L78 Accepts]: Start accepts. Automaton has 46 states. Word has length 164 [2018-03-29 20:14:11,541 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-03-29 20:14:11,542 INFO L225 Difference]: With dead ends: 636 [2018-03-29 20:14:11,543 INFO L226 Difference]: Without dead ends: 372 [2018-03-29 20:14:11,545 INFO L567 BasicCegarLoop]: 0 DeclaredPredicates, 365 GetRequests, 266 SyntacticMatches, 18 SemanticMatches, 81 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1894 ImplicationChecksByTransitivity, 1.0s TimeCoverageRelationStatistics Valid=1156, Invalid=5650, Unknown=0, NotChecked=0, Total=6806 [2018-03-29 20:14:11,546 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 372 states. [2018-03-29 20:14:11,568 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 372 to 338. [2018-03-29 20:14:11,568 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 338 states. [2018-03-29 20:14:11,569 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 338 states to 338 states and 358 transitions. [2018-03-29 20:14:11,569 INFO L78 Accepts]: Start accepts. Automaton has 338 states and 358 transitions. Word has length 164 [2018-03-29 20:14:11,569 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-03-29 20:14:11,569 INFO L459 AbstractCegarLoop]: Abstraction has 338 states and 358 transitions. [2018-03-29 20:14:11,569 INFO L460 AbstractCegarLoop]: Interpolant automaton has 46 states. [2018-03-29 20:14:11,569 INFO L276 IsEmpty]: Start isEmpty. Operand 338 states and 358 transitions. [2018-03-29 20:14:11,570 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 175 [2018-03-29 20:14:11,570 INFO L347 BasicCegarLoop]: Found error trace [2018-03-29 20:14:11,570 INFO L355 BasicCegarLoop]: trace histogram [16, 15, 15, 14, 14, 14, 14, 14, 14, 14, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-03-29 20:14:11,570 INFO L408 AbstractCegarLoop]: === Iteration 21 === [__U_MULTI_fbubblesort_alloca_true_valid_memsafety_true_termination_i__bubbleSortErr0RequiresViolation, __U_MULTI_fbubblesort_alloca_true_valid_memsafety_true_termination_i__bubbleSortErr9RequiresViolation, __U_MULTI_fbubblesort_alloca_true_valid_memsafety_true_termination_i__bubbleSortErr2RequiresViolation, __U_MULTI_fbubblesort_alloca_true_valid_memsafety_true_termination_i__bubbleSortErr10RequiresViolation, __U_MULTI_fbubblesort_alloca_true_valid_memsafety_true_termination_i__bubbleSortErr6RequiresViolation, __U_MULTI_fbubblesort_alloca_true_valid_memsafety_true_termination_i__bubbleSortErr1RequiresViolation, __U_MULTI_fbubblesort_alloca_true_valid_memsafety_true_termination_i__bubbleSortErr7RequiresViolation, __U_MULTI_fbubblesort_alloca_true_valid_memsafety_true_termination_i__bubbleSortErr11RequiresViolation, __U_MULTI_fbubblesort_alloca_true_valid_memsafety_true_termination_i__bubbleSortErr8RequiresViolation, __U_MULTI_fbubblesort_alloca_true_valid_memsafety_true_termination_i__bubbleSortErr4RequiresViolation, __U_MULTI_fbubblesort_alloca_true_valid_memsafety_true_termination_i__bubbleSortErr5RequiresViolation, __U_MULTI_fbubblesort_alloca_true_valid_memsafety_true_termination_i__bubbleSortErr3RequiresViolation, mainErr0EnsuresViolationMEMORY_LEAK]=== [2018-03-29 20:14:11,570 INFO L82 PathProgramCache]: Analyzing trace with hash 322320207, now seen corresponding path program 13 times No working directory specified, using /storage/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 22 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 22 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2018-03-29 20:14:11,576 INFO L68 tionRefinementEngine]: Using refinement strategy FixedRefinementStrategy [2018-03-29 20:14:11,615 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-03-29 20:14:11,618 INFO L270 TraceCheckSpWp]: Computing forward predicates... [2018-03-29 20:14:12,058 INFO L134 CoverageAnalysis]: Checked inductivity of 999 backedges. 291 proven. 708 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-03-29 20:14:12,059 INFO L314 TraceCheckSpWp]: Computing backward predicates... [2018-03-29 20:14:12,419 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 [2018-03-29 20:14:12,420 INFO L267 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2018-03-29 20:14:12,422 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. [2018-03-29 20:14:12,422 INFO L202 ElimStorePlain]: Needed 2 recursive calls to eliminate 3 variables, input treesize:26, output treesize:13 [2018-03-29 20:14:12,559 INFO L134 CoverageAnalysis]: Checked inductivity of 999 backedges. 234 proven. 765 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-03-29 20:14:12,580 INFO L320 seRefinementStrategy]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2018-03-29 20:14:12,581 INFO L335 seRefinementStrategy]: Number of different interpolants: perfect sequences [] imperfect sequences [31, 31] total 46 [2018-03-29 20:14:12,581 INFO L442 AbstractCegarLoop]: Interpolant automaton has 47 states [2018-03-29 20:14:12,581 INFO L132 InterpolantAutomaton]: Constructing interpolant automaton starting with 47 interpolants. [2018-03-29 20:14:12,582 INFO L133 InterpolantAutomaton]: CoverageRelationStatistics Valid=294, Invalid=1868, Unknown=0, NotChecked=0, Total=2162 [2018-03-29 20:14:12,582 INFO L87 Difference]: Start difference. First operand 338 states and 358 transitions. Second operand 47 states. [2018-03-29 20:14:14,461 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-03-29 20:14:14,461 INFO L93 Difference]: Finished difference Result 339 states and 358 transitions. [2018-03-29 20:14:14,462 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 54 states. [2018-03-29 20:14:14,462 INFO L78 Accepts]: Start accepts. Automaton has 47 states. Word has length 174 [2018-03-29 20:14:14,462 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-03-29 20:14:14,463 INFO L225 Difference]: With dead ends: 339 [2018-03-29 20:14:14,463 INFO L226 Difference]: Without dead ends: 338 [2018-03-29 20:14:14,465 INFO L567 BasicCegarLoop]: 0 DeclaredPredicates, 393 GetRequests, 288 SyntacticMatches, 15 SemanticMatches, 90 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2640 ImplicationChecksByTransitivity, 1.5s TimeCoverageRelationStatistics Valid=1406, Invalid=6966, Unknown=0, NotChecked=0, Total=8372 [2018-03-29 20:14:14,465 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 338 states. [2018-03-29 20:14:14,494 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 338 to 338. [2018-03-29 20:14:14,494 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 338 states. [2018-03-29 20:14:14,496 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 338 states to 338 states and 357 transitions. [2018-03-29 20:14:14,496 INFO L78 Accepts]: Start accepts. Automaton has 338 states and 357 transitions. Word has length 174 [2018-03-29 20:14:14,496 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-03-29 20:14:14,496 INFO L459 AbstractCegarLoop]: Abstraction has 338 states and 357 transitions. [2018-03-29 20:14:14,496 INFO L460 AbstractCegarLoop]: Interpolant automaton has 47 states. [2018-03-29 20:14:14,497 INFO L276 IsEmpty]: Start isEmpty. Operand 338 states and 357 transitions. [2018-03-29 20:14:14,498 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 185 [2018-03-29 20:14:14,498 INFO L347 BasicCegarLoop]: Found error trace [2018-03-29 20:14:14,498 INFO L355 BasicCegarLoop]: trace histogram [17, 16, 16, 15, 15, 15, 15, 15, 15, 15, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-03-29 20:14:14,498 INFO L408 AbstractCegarLoop]: === Iteration 22 === [__U_MULTI_fbubblesort_alloca_true_valid_memsafety_true_termination_i__bubbleSortErr0RequiresViolation, __U_MULTI_fbubblesort_alloca_true_valid_memsafety_true_termination_i__bubbleSortErr9RequiresViolation, __U_MULTI_fbubblesort_alloca_true_valid_memsafety_true_termination_i__bubbleSortErr2RequiresViolation, __U_MULTI_fbubblesort_alloca_true_valid_memsafety_true_termination_i__bubbleSortErr10RequiresViolation, __U_MULTI_fbubblesort_alloca_true_valid_memsafety_true_termination_i__bubbleSortErr6RequiresViolation, __U_MULTI_fbubblesort_alloca_true_valid_memsafety_true_termination_i__bubbleSortErr1RequiresViolation, __U_MULTI_fbubblesort_alloca_true_valid_memsafety_true_termination_i__bubbleSortErr7RequiresViolation, __U_MULTI_fbubblesort_alloca_true_valid_memsafety_true_termination_i__bubbleSortErr11RequiresViolation, __U_MULTI_fbubblesort_alloca_true_valid_memsafety_true_termination_i__bubbleSortErr8RequiresViolation, __U_MULTI_fbubblesort_alloca_true_valid_memsafety_true_termination_i__bubbleSortErr4RequiresViolation, __U_MULTI_fbubblesort_alloca_true_valid_memsafety_true_termination_i__bubbleSortErr5RequiresViolation, __U_MULTI_fbubblesort_alloca_true_valid_memsafety_true_termination_i__bubbleSortErr3RequiresViolation, mainErr0EnsuresViolationMEMORY_LEAK]=== [2018-03-29 20:14:14,498 INFO L82 PathProgramCache]: Analyzing trace with hash 609758395, now seen corresponding path program 14 times No working directory specified, using /storage/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 23 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 23 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2018-03-29 20:14:14,504 INFO L68 tionRefinementEngine]: Using refinement strategy FixedRefinementStrategy [2018-03-29 20:14:14,541 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-03-29 20:14:14,544 INFO L270 TraceCheckSpWp]: Computing forward predicates... [2018-03-29 20:14:14,884 INFO L134 CoverageAnalysis]: Checked inductivity of 1145 backedges. 257 proven. 888 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-03-29 20:14:14,884 INFO L314 TraceCheckSpWp]: Computing backward predicates... [2018-03-29 20:14:15,263 INFO L134 CoverageAnalysis]: Checked inductivity of 1145 backedges. 257 proven. 888 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-03-29 20:14:15,284 INFO L320 seRefinementStrategy]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2018-03-29 20:14:15,284 INFO L335 seRefinementStrategy]: Number of different interpolants: perfect sequences [] imperfect sequences [37, 37] total 52 [2018-03-29 20:14:15,284 INFO L442 AbstractCegarLoop]: Interpolant automaton has 52 states [2018-03-29 20:14:15,285 INFO L132 InterpolantAutomaton]: Constructing interpolant automaton starting with 52 interpolants. [2018-03-29 20:14:15,285 INFO L133 InterpolantAutomaton]: CoverageRelationStatistics Valid=358, Invalid=2294, Unknown=0, NotChecked=0, Total=2652 [2018-03-29 20:14:15,285 INFO L87 Difference]: Start difference. First operand 338 states and 357 transitions. Second operand 52 states. [2018-03-29 20:14:16,438 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-03-29 20:14:16,438 INFO L93 Difference]: Finished difference Result 712 states and 753 transitions. [2018-03-29 20:14:16,438 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 54 states. [2018-03-29 20:14:16,438 INFO L78 Accepts]: Start accepts. Automaton has 52 states. Word has length 184 [2018-03-29 20:14:16,439 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-03-29 20:14:16,440 INFO L225 Difference]: With dead ends: 712 [2018-03-29 20:14:16,440 INFO L226 Difference]: Without dead ends: 410 [2018-03-29 20:14:16,441 INFO L567 BasicCegarLoop]: 0 DeclaredPredicates, 410 GetRequests, 298 SyntacticMatches, 20 SemanticMatches, 92 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2476 ImplicationChecksByTransitivity, 1.1s TimeCoverageRelationStatistics Valid=1460, Invalid=7282, Unknown=0, NotChecked=0, Total=8742 [2018-03-29 20:14:16,441 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 410 states. [2018-03-29 20:14:16,459 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 410 to 376. [2018-03-29 20:14:16,459 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 376 states. [2018-03-29 20:14:16,460 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 376 states to 376 states and 398 transitions. [2018-03-29 20:14:16,460 INFO L78 Accepts]: Start accepts. Automaton has 376 states and 398 transitions. Word has length 184 [2018-03-29 20:14:16,460 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-03-29 20:14:16,460 INFO L459 AbstractCegarLoop]: Abstraction has 376 states and 398 transitions. [2018-03-29 20:14:16,461 INFO L460 AbstractCegarLoop]: Interpolant automaton has 52 states. [2018-03-29 20:14:16,461 INFO L276 IsEmpty]: Start isEmpty. Operand 376 states and 398 transitions. [2018-03-29 20:14:16,461 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 195 [2018-03-29 20:14:16,461 INFO L347 BasicCegarLoop]: Found error trace [2018-03-29 20:14:16,461 INFO L355 BasicCegarLoop]: trace histogram [18, 17, 17, 16, 16, 16, 16, 16, 16, 16, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-03-29 20:14:16,462 INFO L408 AbstractCegarLoop]: === Iteration 23 === [__U_MULTI_fbubblesort_alloca_true_valid_memsafety_true_termination_i__bubbleSortErr0RequiresViolation, __U_MULTI_fbubblesort_alloca_true_valid_memsafety_true_termination_i__bubbleSortErr9RequiresViolation, __U_MULTI_fbubblesort_alloca_true_valid_memsafety_true_termination_i__bubbleSortErr2RequiresViolation, __U_MULTI_fbubblesort_alloca_true_valid_memsafety_true_termination_i__bubbleSortErr10RequiresViolation, __U_MULTI_fbubblesort_alloca_true_valid_memsafety_true_termination_i__bubbleSortErr6RequiresViolation, __U_MULTI_fbubblesort_alloca_true_valid_memsafety_true_termination_i__bubbleSortErr1RequiresViolation, __U_MULTI_fbubblesort_alloca_true_valid_memsafety_true_termination_i__bubbleSortErr7RequiresViolation, __U_MULTI_fbubblesort_alloca_true_valid_memsafety_true_termination_i__bubbleSortErr11RequiresViolation, __U_MULTI_fbubblesort_alloca_true_valid_memsafety_true_termination_i__bubbleSortErr8RequiresViolation, __U_MULTI_fbubblesort_alloca_true_valid_memsafety_true_termination_i__bubbleSortErr4RequiresViolation, __U_MULTI_fbubblesort_alloca_true_valid_memsafety_true_termination_i__bubbleSortErr5RequiresViolation, __U_MULTI_fbubblesort_alloca_true_valid_memsafety_true_termination_i__bubbleSortErr3RequiresViolation, mainErr0EnsuresViolationMEMORY_LEAK]=== [2018-03-29 20:14:16,462 INFO L82 PathProgramCache]: Analyzing trace with hash -1783496537, now seen corresponding path program 15 times No working directory specified, using /storage/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 24 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 24 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2018-03-29 20:14:16,467 INFO L68 tionRefinementEngine]: Using refinement strategy FixedRefinementStrategy [2018-03-29 20:14:16,506 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-03-29 20:14:16,510 INFO L270 TraceCheckSpWp]: Computing forward predicates... [2018-03-29 20:14:17,116 INFO L134 CoverageAnalysis]: Checked inductivity of 1301 backedges. 373 proven. 928 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-03-29 20:14:17,117 INFO L314 TraceCheckSpWp]: Computing backward predicates... [2018-03-29 20:14:17,556 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 [2018-03-29 20:14:17,557 INFO L267 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2018-03-29 20:14:17,559 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. [2018-03-29 20:14:17,559 INFO L202 ElimStorePlain]: Needed 2 recursive calls to eliminate 3 variables, input treesize:26, output treesize:13 [2018-03-29 20:14:17,721 INFO L134 CoverageAnalysis]: Checked inductivity of 1301 backedges. 307 proven. 994 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-03-29 20:14:17,742 INFO L320 seRefinementStrategy]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2018-03-29 20:14:17,742 INFO L335 seRefinementStrategy]: Number of different interpolants: perfect sequences [] imperfect sequences [35, 35] total 52 [2018-03-29 20:14:17,743 INFO L442 AbstractCegarLoop]: Interpolant automaton has 53 states [2018-03-29 20:14:17,743 INFO L132 InterpolantAutomaton]: Constructing interpolant automaton starting with 53 interpolants. [2018-03-29 20:14:17,743 INFO L133 InterpolantAutomaton]: CoverageRelationStatistics Valid=366, Invalid=2390, Unknown=0, NotChecked=0, Total=2756 [2018-03-29 20:14:17,743 INFO L87 Difference]: Start difference. First operand 376 states and 398 transitions. Second operand 53 states. [2018-03-29 20:14:19,628 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-03-29 20:14:19,628 INFO L93 Difference]: Finished difference Result 377 states and 398 transitions. [2018-03-29 20:14:19,629 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 61 states. [2018-03-29 20:14:19,629 INFO L78 Accepts]: Start accepts. Automaton has 53 states. Word has length 194 [2018-03-29 20:14:19,629 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-03-29 20:14:19,630 INFO L225 Difference]: With dead ends: 377 [2018-03-29 20:14:19,630 INFO L226 Difference]: Without dead ends: 376 [2018-03-29 20:14:19,631 INFO L567 BasicCegarLoop]: 0 DeclaredPredicates, 439 GetRequests, 320 SyntacticMatches, 17 SemanticMatches, 102 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3477 ImplicationChecksByTransitivity, 1.8s TimeCoverageRelationStatistics Valid=1761, Invalid=8951, Unknown=0, NotChecked=0, Total=10712 [2018-03-29 20:14:19,631 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 376 states. [2018-03-29 20:14:19,650 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 376 to 376. [2018-03-29 20:14:19,650 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 376 states. [2018-03-29 20:14:19,651 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 376 states to 376 states and 397 transitions. [2018-03-29 20:14:19,651 INFO L78 Accepts]: Start accepts. Automaton has 376 states and 397 transitions. Word has length 194 [2018-03-29 20:14:19,651 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-03-29 20:14:19,651 INFO L459 AbstractCegarLoop]: Abstraction has 376 states and 397 transitions. [2018-03-29 20:14:19,651 INFO L460 AbstractCegarLoop]: Interpolant automaton has 53 states. [2018-03-29 20:14:19,651 INFO L276 IsEmpty]: Start isEmpty. Operand 376 states and 397 transitions. [2018-03-29 20:14:19,652 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 205 [2018-03-29 20:14:19,652 INFO L347 BasicCegarLoop]: Found error trace [2018-03-29 20:14:19,652 INFO L355 BasicCegarLoop]: trace histogram [19, 18, 18, 17, 17, 17, 17, 17, 17, 17, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-03-29 20:14:19,652 INFO L408 AbstractCegarLoop]: === Iteration 24 === [__U_MULTI_fbubblesort_alloca_true_valid_memsafety_true_termination_i__bubbleSortErr0RequiresViolation, __U_MULTI_fbubblesort_alloca_true_valid_memsafety_true_termination_i__bubbleSortErr9RequiresViolation, __U_MULTI_fbubblesort_alloca_true_valid_memsafety_true_termination_i__bubbleSortErr2RequiresViolation, __U_MULTI_fbubblesort_alloca_true_valid_memsafety_true_termination_i__bubbleSortErr10RequiresViolation, __U_MULTI_fbubblesort_alloca_true_valid_memsafety_true_termination_i__bubbleSortErr6RequiresViolation, __U_MULTI_fbubblesort_alloca_true_valid_memsafety_true_termination_i__bubbleSortErr1RequiresViolation, __U_MULTI_fbubblesort_alloca_true_valid_memsafety_true_termination_i__bubbleSortErr7RequiresViolation, __U_MULTI_fbubblesort_alloca_true_valid_memsafety_true_termination_i__bubbleSortErr11RequiresViolation, __U_MULTI_fbubblesort_alloca_true_valid_memsafety_true_termination_i__bubbleSortErr8RequiresViolation, __U_MULTI_fbubblesort_alloca_true_valid_memsafety_true_termination_i__bubbleSortErr4RequiresViolation, __U_MULTI_fbubblesort_alloca_true_valid_memsafety_true_termination_i__bubbleSortErr5RequiresViolation, __U_MULTI_fbubblesort_alloca_true_valid_memsafety_true_termination_i__bubbleSortErr3RequiresViolation, mainErr0EnsuresViolationMEMORY_LEAK]=== [2018-03-29 20:14:19,653 INFO L82 PathProgramCache]: Analyzing trace with hash -938858477, now seen corresponding path program 16 times No working directory specified, using /storage/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 25 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 25 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2018-03-29 20:14:19,672 INFO L68 tionRefinementEngine]: Using refinement strategy FixedRefinementStrategy [2018-03-29 20:14:19,724 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-03-29 20:14:19,730 INFO L270 TraceCheckSpWp]: Computing forward predicates... [2018-03-29 20:14:20,432 INFO L134 CoverageAnalysis]: Checked inductivity of 1467 backedges. 333 proven. 1134 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-03-29 20:14:20,432 INFO L314 TraceCheckSpWp]: Computing backward predicates... [2018-03-29 20:14:20,925 INFO L134 CoverageAnalysis]: Checked inductivity of 1467 backedges. 333 proven. 1134 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-03-29 20:14:20,945 INFO L320 seRefinementStrategy]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2018-03-29 20:14:20,946 INFO L335 seRefinementStrategy]: Number of different interpolants: perfect sequences [] imperfect sequences [41, 41] total 58 [2018-03-29 20:14:20,946 INFO L442 AbstractCegarLoop]: Interpolant automaton has 58 states [2018-03-29 20:14:20,947 INFO L132 InterpolantAutomaton]: Constructing interpolant automaton starting with 58 interpolants. [2018-03-29 20:14:20,947 INFO L133 InterpolantAutomaton]: CoverageRelationStatistics Valid=438, Invalid=2868, Unknown=0, NotChecked=0, Total=3306 [2018-03-29 20:14:20,947 INFO L87 Difference]: Start difference. First operand 376 states and 397 transitions. Second operand 58 states. [2018-03-29 20:14:22,199 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-03-29 20:14:22,200 INFO L93 Difference]: Finished difference Result 788 states and 833 transitions. [2018-03-29 20:14:22,200 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 60 states. [2018-03-29 20:14:22,200 INFO L78 Accepts]: Start accepts. Automaton has 58 states. Word has length 204 [2018-03-29 20:14:22,200 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-03-29 20:14:22,202 INFO L225 Difference]: With dead ends: 788 [2018-03-29 20:14:22,202 INFO L226 Difference]: Without dead ends: 448 [2018-03-29 20:14:22,204 INFO L567 BasicCegarLoop]: 0 DeclaredPredicates, 455 GetRequests, 330 SyntacticMatches, 22 SemanticMatches, 103 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3136 ImplicationChecksByTransitivity, 1.6s TimeCoverageRelationStatistics Valid=1799, Invalid=9121, Unknown=0, NotChecked=0, Total=10920 [2018-03-29 20:14:22,205 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 448 states. [2018-03-29 20:14:22,231 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 448 to 414. [2018-03-29 20:14:22,231 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 414 states. [2018-03-29 20:14:22,232 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 414 states to 414 states and 438 transitions. [2018-03-29 20:14:22,232 INFO L78 Accepts]: Start accepts. Automaton has 414 states and 438 transitions. Word has length 204 [2018-03-29 20:14:22,232 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-03-29 20:14:22,232 INFO L459 AbstractCegarLoop]: Abstraction has 414 states and 438 transitions. [2018-03-29 20:14:22,233 INFO L460 AbstractCegarLoop]: Interpolant automaton has 58 states. [2018-03-29 20:14:22,233 INFO L276 IsEmpty]: Start isEmpty. Operand 414 states and 438 transitions. [2018-03-29 20:14:22,233 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 215 [2018-03-29 20:14:22,233 INFO L347 BasicCegarLoop]: Found error trace [2018-03-29 20:14:22,234 INFO L355 BasicCegarLoop]: trace histogram [20, 19, 19, 18, 18, 18, 18, 18, 18, 18, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-03-29 20:14:22,234 INFO L408 AbstractCegarLoop]: === Iteration 25 === [__U_MULTI_fbubblesort_alloca_true_valid_memsafety_true_termination_i__bubbleSortErr0RequiresViolation, __U_MULTI_fbubblesort_alloca_true_valid_memsafety_true_termination_i__bubbleSortErr9RequiresViolation, __U_MULTI_fbubblesort_alloca_true_valid_memsafety_true_termination_i__bubbleSortErr2RequiresViolation, __U_MULTI_fbubblesort_alloca_true_valid_memsafety_true_termination_i__bubbleSortErr10RequiresViolation, __U_MULTI_fbubblesort_alloca_true_valid_memsafety_true_termination_i__bubbleSortErr6RequiresViolation, __U_MULTI_fbubblesort_alloca_true_valid_memsafety_true_termination_i__bubbleSortErr1RequiresViolation, __U_MULTI_fbubblesort_alloca_true_valid_memsafety_true_termination_i__bubbleSortErr7RequiresViolation, __U_MULTI_fbubblesort_alloca_true_valid_memsafety_true_termination_i__bubbleSortErr11RequiresViolation, __U_MULTI_fbubblesort_alloca_true_valid_memsafety_true_termination_i__bubbleSortErr8RequiresViolation, __U_MULTI_fbubblesort_alloca_true_valid_memsafety_true_termination_i__bubbleSortErr4RequiresViolation, __U_MULTI_fbubblesort_alloca_true_valid_memsafety_true_termination_i__bubbleSortErr5RequiresViolation, __U_MULTI_fbubblesort_alloca_true_valid_memsafety_true_termination_i__bubbleSortErr3RequiresViolation, mainErr0EnsuresViolationMEMORY_LEAK]=== [2018-03-29 20:14:22,234 INFO L82 PathProgramCache]: Analyzing trace with hash -1036071425, now seen corresponding path program 17 times No working directory specified, using /storage/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 26 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 26 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2018-03-29 20:14:22,239 INFO L68 tionRefinementEngine]: Using refinement strategy FixedRefinementStrategy [2018-03-29 20:14:22,281 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-03-29 20:14:22,285 INFO L270 TraceCheckSpWp]: Computing forward predicates... [2018-03-29 20:14:22,861 INFO L134 CoverageAnalysis]: Checked inductivity of 1643 backedges. 465 proven. 1178 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-03-29 20:14:22,861 INFO L314 TraceCheckSpWp]: Computing backward predicates... [2018-03-29 20:14:23,401 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 [2018-03-29 20:14:23,401 INFO L267 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2018-03-29 20:14:23,404 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. [2018-03-29 20:14:23,404 INFO L202 ElimStorePlain]: Needed 2 recursive calls to eliminate 3 variables, input treesize:26, output treesize:13 [2018-03-29 20:14:23,710 INFO L134 CoverageAnalysis]: Checked inductivity of 1643 backedges. 390 proven. 1253 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-03-29 20:14:23,731 INFO L320 seRefinementStrategy]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2018-03-29 20:14:23,731 INFO L335 seRefinementStrategy]: Number of different interpolants: perfect sequences [] imperfect sequences [39, 39] total 58 [2018-03-29 20:14:23,731 INFO L442 AbstractCegarLoop]: Interpolant automaton has 59 states [2018-03-29 20:14:23,731 INFO L132 InterpolantAutomaton]: Constructing interpolant automaton starting with 59 interpolants. [2018-03-29 20:14:23,732 INFO L133 InterpolantAutomaton]: CoverageRelationStatistics Valid=446, Invalid=2976, Unknown=0, NotChecked=0, Total=3422 [2018-03-29 20:14:23,732 INFO L87 Difference]: Start difference. First operand 414 states and 438 transitions. Second operand 59 states. [2018-03-29 20:14:25,937 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-03-29 20:14:25,937 INFO L93 Difference]: Finished difference Result 415 states and 438 transitions. [2018-03-29 20:14:25,972 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 68 states. [2018-03-29 20:14:25,972 INFO L78 Accepts]: Start accepts. Automaton has 59 states. Word has length 214 [2018-03-29 20:14:25,973 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-03-29 20:14:25,974 INFO L225 Difference]: With dead ends: 415 [2018-03-29 20:14:25,974 INFO L226 Difference]: Without dead ends: 414 [2018-03-29 20:14:25,976 INFO L567 BasicCegarLoop]: 0 DeclaredPredicates, 485 GetRequests, 352 SyntacticMatches, 19 SemanticMatches, 114 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 4429 ImplicationChecksByTransitivity, 2.2s TimeCoverageRelationStatistics Valid=2156, Invalid=11184, Unknown=0, NotChecked=0, Total=13340 [2018-03-29 20:14:25,976 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 414 states. [2018-03-29 20:14:25,999 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 414 to 414. [2018-03-29 20:14:25,999 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 414 states. [2018-03-29 20:14:26,001 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 414 states to 414 states and 437 transitions. [2018-03-29 20:14:26,002 INFO L78 Accepts]: Start accepts. Automaton has 414 states and 437 transitions. Word has length 214 [2018-03-29 20:14:26,002 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-03-29 20:14:26,002 INFO L459 AbstractCegarLoop]: Abstraction has 414 states and 437 transitions. [2018-03-29 20:14:26,002 INFO L460 AbstractCegarLoop]: Interpolant automaton has 59 states. [2018-03-29 20:14:26,002 INFO L276 IsEmpty]: Start isEmpty. Operand 414 states and 437 transitions. [2018-03-29 20:14:26,004 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 225 [2018-03-29 20:14:26,004 INFO L347 BasicCegarLoop]: Found error trace [2018-03-29 20:14:26,004 INFO L355 BasicCegarLoop]: trace histogram [21, 20, 20, 19, 19, 19, 19, 19, 19, 19, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-03-29 20:14:26,004 INFO L408 AbstractCegarLoop]: === Iteration 26 === [__U_MULTI_fbubblesort_alloca_true_valid_memsafety_true_termination_i__bubbleSortErr0RequiresViolation, __U_MULTI_fbubblesort_alloca_true_valid_memsafety_true_termination_i__bubbleSortErr9RequiresViolation, __U_MULTI_fbubblesort_alloca_true_valid_memsafety_true_termination_i__bubbleSortErr2RequiresViolation, __U_MULTI_fbubblesort_alloca_true_valid_memsafety_true_termination_i__bubbleSortErr10RequiresViolation, __U_MULTI_fbubblesort_alloca_true_valid_memsafety_true_termination_i__bubbleSortErr6RequiresViolation, __U_MULTI_fbubblesort_alloca_true_valid_memsafety_true_termination_i__bubbleSortErr1RequiresViolation, __U_MULTI_fbubblesort_alloca_true_valid_memsafety_true_termination_i__bubbleSortErr7RequiresViolation, __U_MULTI_fbubblesort_alloca_true_valid_memsafety_true_termination_i__bubbleSortErr11RequiresViolation, __U_MULTI_fbubblesort_alloca_true_valid_memsafety_true_termination_i__bubbleSortErr8RequiresViolation, __U_MULTI_fbubblesort_alloca_true_valid_memsafety_true_termination_i__bubbleSortErr4RequiresViolation, __U_MULTI_fbubblesort_alloca_true_valid_memsafety_true_termination_i__bubbleSortErr5RequiresViolation, __U_MULTI_fbubblesort_alloca_true_valid_memsafety_true_termination_i__bubbleSortErr3RequiresViolation, mainErr0EnsuresViolationMEMORY_LEAK]=== [2018-03-29 20:14:26,005 INFO L82 PathProgramCache]: Analyzing trace with hash 123217771, now seen corresponding path program 18 times No working directory specified, using /storage/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 27 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 27 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2018-03-29 20:14:26,014 INFO L68 tionRefinementEngine]: Using refinement strategy FixedRefinementStrategy [2018-03-29 20:14:26,078 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-03-29 20:14:26,082 INFO L270 TraceCheckSpWp]: Computing forward predicates... [2018-03-29 20:14:26,595 INFO L134 CoverageAnalysis]: Checked inductivity of 1829 backedges. 419 proven. 1410 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-03-29 20:14:26,595 INFO L314 TraceCheckSpWp]: Computing backward predicates... [2018-03-29 20:14:27,113 INFO L134 CoverageAnalysis]: Checked inductivity of 1829 backedges. 419 proven. 1410 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-03-29 20:14:27,134 INFO L320 seRefinementStrategy]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2018-03-29 20:14:27,134 INFO L335 seRefinementStrategy]: Number of different interpolants: perfect sequences [] imperfect sequences [45, 45] total 64 [2018-03-29 20:14:27,134 INFO L442 AbstractCegarLoop]: Interpolant automaton has 64 states [2018-03-29 20:14:27,135 INFO L132 InterpolantAutomaton]: Constructing interpolant automaton starting with 64 interpolants. [2018-03-29 20:14:27,135 INFO L133 InterpolantAutomaton]: CoverageRelationStatistics Valid=526, Invalid=3506, Unknown=0, NotChecked=0, Total=4032 [2018-03-29 20:14:27,135 INFO L87 Difference]: Start difference. First operand 414 states and 437 transitions. Second operand 64 states. [2018-03-29 20:14:28,569 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-03-29 20:14:28,569 INFO L93 Difference]: Finished difference Result 864 states and 913 transitions. [2018-03-29 20:14:28,570 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 66 states. [2018-03-29 20:14:28,570 INFO L78 Accepts]: Start accepts. Automaton has 64 states. Word has length 224 [2018-03-29 20:14:28,570 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-03-29 20:14:28,571 INFO L225 Difference]: With dead ends: 864 [2018-03-29 20:14:28,571 INFO L226 Difference]: Without dead ends: 486 [2018-03-29 20:14:28,573 INFO L567 BasicCegarLoop]: 0 DeclaredPredicates, 500 GetRequests, 362 SyntacticMatches, 24 SemanticMatches, 114 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3874 ImplicationChecksByTransitivity, 1.6s TimeCoverageRelationStatistics Valid=2173, Invalid=11167, Unknown=0, NotChecked=0, Total=13340 [2018-03-29 20:14:28,573 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 486 states. [2018-03-29 20:14:28,605 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 486 to 452. [2018-03-29 20:14:28,606 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 452 states. [2018-03-29 20:14:28,608 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 452 states to 452 states and 478 transitions. [2018-03-29 20:14:28,608 INFO L78 Accepts]: Start accepts. Automaton has 452 states and 478 transitions. Word has length 224 [2018-03-29 20:14:28,608 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-03-29 20:14:28,608 INFO L459 AbstractCegarLoop]: Abstraction has 452 states and 478 transitions. [2018-03-29 20:14:28,608 INFO L460 AbstractCegarLoop]: Interpolant automaton has 64 states. [2018-03-29 20:14:28,609 INFO L276 IsEmpty]: Start isEmpty. Operand 452 states and 478 transitions. [2018-03-29 20:14:28,610 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 235 [2018-03-29 20:14:28,610 INFO L347 BasicCegarLoop]: Found error trace [2018-03-29 20:14:28,611 INFO L355 BasicCegarLoop]: trace histogram [22, 21, 21, 20, 20, 20, 20, 20, 20, 20, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-03-29 20:14:28,611 INFO L408 AbstractCegarLoop]: === Iteration 27 === [__U_MULTI_fbubblesort_alloca_true_valid_memsafety_true_termination_i__bubbleSortErr0RequiresViolation, __U_MULTI_fbubblesort_alloca_true_valid_memsafety_true_termination_i__bubbleSortErr9RequiresViolation, __U_MULTI_fbubblesort_alloca_true_valid_memsafety_true_termination_i__bubbleSortErr2RequiresViolation, __U_MULTI_fbubblesort_alloca_true_valid_memsafety_true_termination_i__bubbleSortErr10RequiresViolation, __U_MULTI_fbubblesort_alloca_true_valid_memsafety_true_termination_i__bubbleSortErr6RequiresViolation, __U_MULTI_fbubblesort_alloca_true_valid_memsafety_true_termination_i__bubbleSortErr1RequiresViolation, __U_MULTI_fbubblesort_alloca_true_valid_memsafety_true_termination_i__bubbleSortErr7RequiresViolation, __U_MULTI_fbubblesort_alloca_true_valid_memsafety_true_termination_i__bubbleSortErr11RequiresViolation, __U_MULTI_fbubblesort_alloca_true_valid_memsafety_true_termination_i__bubbleSortErr8RequiresViolation, __U_MULTI_fbubblesort_alloca_true_valid_memsafety_true_termination_i__bubbleSortErr4RequiresViolation, __U_MULTI_fbubblesort_alloca_true_valid_memsafety_true_termination_i__bubbleSortErr5RequiresViolation, __U_MULTI_fbubblesort_alloca_true_valid_memsafety_true_termination_i__bubbleSortErr3RequiresViolation, mainErr0EnsuresViolationMEMORY_LEAK]=== [2018-03-29 20:14:28,611 INFO L82 PathProgramCache]: Analyzing trace with hash 315268951, now seen corresponding path program 19 times No working directory specified, using /storage/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 28 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 28 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2018-03-29 20:14:28,620 INFO L68 tionRefinementEngine]: Using refinement strategy FixedRefinementStrategy [2018-03-29 20:14:28,690 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-03-29 20:14:28,694 INFO L270 TraceCheckSpWp]: Computing forward predicates... [2018-03-29 20:14:29,657 INFO L134 CoverageAnalysis]: Checked inductivity of 2025 backedges. 567 proven. 1458 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-03-29 20:14:29,657 INFO L314 TraceCheckSpWp]: Computing backward predicates... [2018-03-29 20:14:30,271 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 [2018-03-29 20:14:30,271 INFO L267 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2018-03-29 20:14:30,274 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. [2018-03-29 20:14:30,274 INFO L202 ElimStorePlain]: Needed 2 recursive calls to eliminate 3 variables, input treesize:26, output treesize:13 [2018-03-29 20:14:30,494 INFO L134 CoverageAnalysis]: Checked inductivity of 2025 backedges. 483 proven. 1542 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-03-29 20:14:30,514 INFO L320 seRefinementStrategy]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2018-03-29 20:14:30,514 INFO L335 seRefinementStrategy]: Number of different interpolants: perfect sequences [] imperfect sequences [43, 43] total 64 [2018-03-29 20:14:30,515 INFO L442 AbstractCegarLoop]: Interpolant automaton has 65 states [2018-03-29 20:14:30,515 INFO L132 InterpolantAutomaton]: Constructing interpolant automaton starting with 65 interpolants. [2018-03-29 20:14:30,515 INFO L133 InterpolantAutomaton]: CoverageRelationStatistics Valid=534, Invalid=3626, Unknown=0, NotChecked=0, Total=4160 [2018-03-29 20:14:30,515 INFO L87 Difference]: Start difference. First operand 452 states and 478 transitions. Second operand 65 states. [2018-03-29 20:14:33,418 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-03-29 20:14:33,418 INFO L93 Difference]: Finished difference Result 453 states and 478 transitions. [2018-03-29 20:14:33,418 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 75 states. [2018-03-29 20:14:33,419 INFO L78 Accepts]: Start accepts. Automaton has 65 states. Word has length 234 [2018-03-29 20:14:33,419 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-03-29 20:14:33,420 INFO L225 Difference]: With dead ends: 453 [2018-03-29 20:14:33,420 INFO L226 Difference]: Without dead ends: 452 [2018-03-29 20:14:33,421 INFO L567 BasicCegarLoop]: 0 DeclaredPredicates, 531 GetRequests, 384 SyntacticMatches, 21 SemanticMatches, 126 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 5496 ImplicationChecksByTransitivity, 2.7s TimeCoverageRelationStatistics Valid=2591, Invalid=13665, Unknown=0, NotChecked=0, Total=16256 [2018-03-29 20:14:33,421 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 452 states. [2018-03-29 20:14:33,444 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 452 to 452. [2018-03-29 20:14:33,444 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 452 states. [2018-03-29 20:14:33,445 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 452 states to 452 states and 477 transitions. [2018-03-29 20:14:33,445 INFO L78 Accepts]: Start accepts. Automaton has 452 states and 477 transitions. Word has length 234 [2018-03-29 20:14:33,445 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-03-29 20:14:33,446 INFO L459 AbstractCegarLoop]: Abstraction has 452 states and 477 transitions. [2018-03-29 20:14:33,446 INFO L460 AbstractCegarLoop]: Interpolant automaton has 65 states. [2018-03-29 20:14:33,446 INFO L276 IsEmpty]: Start isEmpty. Operand 452 states and 477 transitions. [2018-03-29 20:14:33,447 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 245 [2018-03-29 20:14:33,447 INFO L347 BasicCegarLoop]: Found error trace [2018-03-29 20:14:33,447 INFO L355 BasicCegarLoop]: trace histogram [23, 22, 22, 21, 21, 21, 21, 21, 21, 21, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-03-29 20:14:33,447 INFO L408 AbstractCegarLoop]: === Iteration 28 === [__U_MULTI_fbubblesort_alloca_true_valid_memsafety_true_termination_i__bubbleSortErr0RequiresViolation, __U_MULTI_fbubblesort_alloca_true_valid_memsafety_true_termination_i__bubbleSortErr9RequiresViolation, __U_MULTI_fbubblesort_alloca_true_valid_memsafety_true_termination_i__bubbleSortErr2RequiresViolation, __U_MULTI_fbubblesort_alloca_true_valid_memsafety_true_termination_i__bubbleSortErr10RequiresViolation, __U_MULTI_fbubblesort_alloca_true_valid_memsafety_true_termination_i__bubbleSortErr6RequiresViolation, __U_MULTI_fbubblesort_alloca_true_valid_memsafety_true_termination_i__bubbleSortErr1RequiresViolation, __U_MULTI_fbubblesort_alloca_true_valid_memsafety_true_termination_i__bubbleSortErr7RequiresViolation, __U_MULTI_fbubblesort_alloca_true_valid_memsafety_true_termination_i__bubbleSortErr11RequiresViolation, __U_MULTI_fbubblesort_alloca_true_valid_memsafety_true_termination_i__bubbleSortErr8RequiresViolation, __U_MULTI_fbubblesort_alloca_true_valid_memsafety_true_termination_i__bubbleSortErr4RequiresViolation, __U_MULTI_fbubblesort_alloca_true_valid_memsafety_true_termination_i__bubbleSortErr5RequiresViolation, __U_MULTI_fbubblesort_alloca_true_valid_memsafety_true_termination_i__bubbleSortErr3RequiresViolation, mainErr0EnsuresViolationMEMORY_LEAK]=== [2018-03-29 20:14:33,447 INFO L82 PathProgramCache]: Analyzing trace with hash 1253059267, now seen corresponding path program 20 times No working directory specified, using /storage/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 29 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 29 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2018-03-29 20:14:33,453 INFO L68 tionRefinementEngine]: Using refinement strategy FixedRefinementStrategy [2018-03-29 20:14:33,510 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-03-29 20:14:33,514 INFO L270 TraceCheckSpWp]: Computing forward predicates... [2018-03-29 20:14:34,087 INFO L134 CoverageAnalysis]: Checked inductivity of 2231 backedges. 515 proven. 1716 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-03-29 20:14:34,087 INFO L314 TraceCheckSpWp]: Computing backward predicates... [2018-03-29 20:14:34,710 INFO L134 CoverageAnalysis]: Checked inductivity of 2231 backedges. 515 proven. 1716 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-03-29 20:14:34,730 INFO L320 seRefinementStrategy]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2018-03-29 20:14:34,731 INFO L335 seRefinementStrategy]: Number of different interpolants: perfect sequences [] imperfect sequences [49, 49] total 70 [2018-03-29 20:14:34,731 INFO L442 AbstractCegarLoop]: Interpolant automaton has 70 states [2018-03-29 20:14:34,731 INFO L132 InterpolantAutomaton]: Constructing interpolant automaton starting with 70 interpolants. [2018-03-29 20:14:34,732 INFO L133 InterpolantAutomaton]: CoverageRelationStatistics Valid=622, Invalid=4208, Unknown=0, NotChecked=0, Total=4830 [2018-03-29 20:14:34,732 INFO L87 Difference]: Start difference. First operand 452 states and 477 transitions. Second operand 70 states. [2018-03-29 20:14:36,286 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-03-29 20:14:36,287 INFO L93 Difference]: Finished difference Result 940 states and 993 transitions. [2018-03-29 20:14:36,287 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 72 states. [2018-03-29 20:14:36,287 INFO L78 Accepts]: Start accepts. Automaton has 70 states. Word has length 244 [2018-03-29 20:14:36,287 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-03-29 20:14:36,289 INFO L225 Difference]: With dead ends: 940 [2018-03-29 20:14:36,289 INFO L226 Difference]: Without dead ends: 524 [2018-03-29 20:14:36,290 INFO L567 BasicCegarLoop]: 0 DeclaredPredicates, 545 GetRequests, 394 SyntacticMatches, 26 SemanticMatches, 125 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 4690 ImplicationChecksByTransitivity, 1.8s TimeCoverageRelationStatistics Valid=2582, Invalid=13420, Unknown=0, NotChecked=0, Total=16002 [2018-03-29 20:14:36,290 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 524 states. [2018-03-29 20:14:36,330 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 524 to 490. [2018-03-29 20:14:36,330 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 490 states. [2018-03-29 20:14:36,332 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 490 states to 490 states and 518 transitions. [2018-03-29 20:14:36,332 INFO L78 Accepts]: Start accepts. Automaton has 490 states and 518 transitions. Word has length 244 [2018-03-29 20:14:36,332 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-03-29 20:14:36,332 INFO L459 AbstractCegarLoop]: Abstraction has 490 states and 518 transitions. [2018-03-29 20:14:36,332 INFO L460 AbstractCegarLoop]: Interpolant automaton has 70 states. [2018-03-29 20:14:36,332 INFO L276 IsEmpty]: Start isEmpty. Operand 490 states and 518 transitions. [2018-03-29 20:14:36,334 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 255 [2018-03-29 20:14:36,334 INFO L347 BasicCegarLoop]: Found error trace [2018-03-29 20:14:36,335 INFO L355 BasicCegarLoop]: trace histogram [24, 23, 23, 22, 22, 22, 22, 22, 22, 22, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-03-29 20:14:36,335 INFO L408 AbstractCegarLoop]: === Iteration 29 === [__U_MULTI_fbubblesort_alloca_true_valid_memsafety_true_termination_i__bubbleSortErr0RequiresViolation, __U_MULTI_fbubblesort_alloca_true_valid_memsafety_true_termination_i__bubbleSortErr9RequiresViolation, __U_MULTI_fbubblesort_alloca_true_valid_memsafety_true_termination_i__bubbleSortErr2RequiresViolation, __U_MULTI_fbubblesort_alloca_true_valid_memsafety_true_termination_i__bubbleSortErr10RequiresViolation, __U_MULTI_fbubblesort_alloca_true_valid_memsafety_true_termination_i__bubbleSortErr6RequiresViolation, __U_MULTI_fbubblesort_alloca_true_valid_memsafety_true_termination_i__bubbleSortErr1RequiresViolation, __U_MULTI_fbubblesort_alloca_true_valid_memsafety_true_termination_i__bubbleSortErr7RequiresViolation, __U_MULTI_fbubblesort_alloca_true_valid_memsafety_true_termination_i__bubbleSortErr11RequiresViolation, __U_MULTI_fbubblesort_alloca_true_valid_memsafety_true_termination_i__bubbleSortErr8RequiresViolation, __U_MULTI_fbubblesort_alloca_true_valid_memsafety_true_termination_i__bubbleSortErr4RequiresViolation, __U_MULTI_fbubblesort_alloca_true_valid_memsafety_true_termination_i__bubbleSortErr5RequiresViolation, __U_MULTI_fbubblesort_alloca_true_valid_memsafety_true_termination_i__bubbleSortErr3RequiresViolation, mainErr0EnsuresViolationMEMORY_LEAK]=== [2018-03-29 20:14:36,335 INFO L82 PathProgramCache]: Analyzing trace with hash -532450129, now seen corresponding path program 21 times No working directory specified, using /storage/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 30 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 30 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2018-03-29 20:14:36,344 INFO L68 tionRefinementEngine]: Using refinement strategy FixedRefinementStrategy [2018-03-29 20:14:36,403 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-03-29 20:14:36,407 INFO L270 TraceCheckSpWp]: Computing forward predicates... [2018-03-29 20:14:37,232 INFO L134 CoverageAnalysis]: Checked inductivity of 2447 backedges. 679 proven. 1768 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-03-29 20:14:37,232 INFO L314 TraceCheckSpWp]: Computing backward predicates... [2018-03-29 20:14:38,022 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 [2018-03-29 20:14:38,023 INFO L267 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2018-03-29 20:14:38,025 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. [2018-03-29 20:14:38,026 INFO L202 ElimStorePlain]: Needed 2 recursive calls to eliminate 3 variables, input treesize:26, output treesize:13 [2018-03-29 20:14:38,306 INFO L134 CoverageAnalysis]: Checked inductivity of 2447 backedges. 586 proven. 1861 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-03-29 20:14:38,328 INFO L320 seRefinementStrategy]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2018-03-29 20:14:38,328 INFO L335 seRefinementStrategy]: Number of different interpolants: perfect sequences [] imperfect sequences [47, 47] total 70 [2018-03-29 20:14:38,329 INFO L442 AbstractCegarLoop]: Interpolant automaton has 71 states [2018-03-29 20:14:38,329 INFO L132 InterpolantAutomaton]: Constructing interpolant automaton starting with 71 interpolants. [2018-03-29 20:14:38,329 INFO L133 InterpolantAutomaton]: CoverageRelationStatistics Valid=630, Invalid=4340, Unknown=0, NotChecked=0, Total=4970 [2018-03-29 20:14:38,329 INFO L87 Difference]: Start difference. First operand 490 states and 518 transitions. Second operand 71 states. [2018-03-29 20:14:41,590 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-03-29 20:14:41,590 INFO L93 Difference]: Finished difference Result 491 states and 518 transitions. [2018-03-29 20:14:41,590 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 82 states. [2018-03-29 20:14:41,590 INFO L78 Accepts]: Start accepts. Automaton has 71 states. Word has length 254 [2018-03-29 20:14:41,591 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-03-29 20:14:41,592 INFO L225 Difference]: With dead ends: 491 [2018-03-29 20:14:41,592 INFO L226 Difference]: Without dead ends: 490 [2018-03-29 20:14:41,593 INFO L567 BasicCegarLoop]: 0 DeclaredPredicates, 577 GetRequests, 416 SyntacticMatches, 23 SemanticMatches, 138 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 6678 ImplicationChecksByTransitivity, 2.9s TimeCoverageRelationStatistics Valid=3066, Invalid=16394, Unknown=0, NotChecked=0, Total=19460 [2018-03-29 20:14:41,593 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 490 states. [2018-03-29 20:14:41,628 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 490 to 490. [2018-03-29 20:14:41,628 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 490 states. [2018-03-29 20:14:41,629 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 490 states to 490 states and 517 transitions. [2018-03-29 20:14:41,629 INFO L78 Accepts]: Start accepts. Automaton has 490 states and 517 transitions. Word has length 254 [2018-03-29 20:14:41,630 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-03-29 20:14:41,630 INFO L459 AbstractCegarLoop]: Abstraction has 490 states and 517 transitions. [2018-03-29 20:14:41,630 INFO L460 AbstractCegarLoop]: Interpolant automaton has 71 states. [2018-03-29 20:14:41,630 INFO L276 IsEmpty]: Start isEmpty. Operand 490 states and 517 transitions. [2018-03-29 20:14:41,631 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 265 [2018-03-29 20:14:41,631 INFO L347 BasicCegarLoop]: Found error trace [2018-03-29 20:14:41,631 INFO L355 BasicCegarLoop]: trace histogram [25, 24, 24, 23, 23, 23, 23, 23, 23, 23, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-03-29 20:14:41,631 INFO L408 AbstractCegarLoop]: === Iteration 30 === [__U_MULTI_fbubblesort_alloca_true_valid_memsafety_true_termination_i__bubbleSortErr0RequiresViolation, __U_MULTI_fbubblesort_alloca_true_valid_memsafety_true_termination_i__bubbleSortErr9RequiresViolation, __U_MULTI_fbubblesort_alloca_true_valid_memsafety_true_termination_i__bubbleSortErr2RequiresViolation, __U_MULTI_fbubblesort_alloca_true_valid_memsafety_true_termination_i__bubbleSortErr10RequiresViolation, __U_MULTI_fbubblesort_alloca_true_valid_memsafety_true_termination_i__bubbleSortErr6RequiresViolation, __U_MULTI_fbubblesort_alloca_true_valid_memsafety_true_termination_i__bubbleSortErr1RequiresViolation, __U_MULTI_fbubblesort_alloca_true_valid_memsafety_true_termination_i__bubbleSortErr7RequiresViolation, __U_MULTI_fbubblesort_alloca_true_valid_memsafety_true_termination_i__bubbleSortErr11RequiresViolation, __U_MULTI_fbubblesort_alloca_true_valid_memsafety_true_termination_i__bubbleSortErr8RequiresViolation, __U_MULTI_fbubblesort_alloca_true_valid_memsafety_true_termination_i__bubbleSortErr4RequiresViolation, __U_MULTI_fbubblesort_alloca_true_valid_memsafety_true_termination_i__bubbleSortErr5RequiresViolation, __U_MULTI_fbubblesort_alloca_true_valid_memsafety_true_termination_i__bubbleSortErr3RequiresViolation, mainErr0EnsuresViolationMEMORY_LEAK]=== [2018-03-29 20:14:41,631 INFO L82 PathProgramCache]: Analyzing trace with hash 427831835, now seen corresponding path program 22 times No working directory specified, using /storage/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 31 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 31 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2018-03-29 20:14:41,637 INFO L68 tionRefinementEngine]: Using refinement strategy FixedRefinementStrategy [2018-03-29 20:14:41,687 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-03-29 20:14:41,691 INFO L270 TraceCheckSpWp]: Computing forward predicates... [2018-03-29 20:14:42,332 INFO L134 CoverageAnalysis]: Checked inductivity of 2673 backedges. 621 proven. 2052 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-03-29 20:14:42,333 INFO L314 TraceCheckSpWp]: Computing backward predicates... [2018-03-29 20:14:43,040 INFO L134 CoverageAnalysis]: Checked inductivity of 2673 backedges. 621 proven. 2052 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-03-29 20:14:43,063 INFO L320 seRefinementStrategy]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2018-03-29 20:14:43,063 INFO L335 seRefinementStrategy]: Number of different interpolants: perfect sequences [] imperfect sequences [53, 53] total 76 [2018-03-29 20:14:43,064 INFO L442 AbstractCegarLoop]: Interpolant automaton has 76 states [2018-03-29 20:14:43,064 INFO L132 InterpolantAutomaton]: Constructing interpolant automaton starting with 76 interpolants. [2018-03-29 20:14:43,064 INFO L133 InterpolantAutomaton]: CoverageRelationStatistics Valid=726, Invalid=4974, Unknown=0, NotChecked=0, Total=5700 [2018-03-29 20:14:43,065 INFO L87 Difference]: Start difference. First operand 490 states and 517 transitions. Second operand 76 states. [2018-03-29 20:14:44,887 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-03-29 20:14:44,888 INFO L93 Difference]: Finished difference Result 1016 states and 1073 transitions. [2018-03-29 20:14:44,888 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 78 states. [2018-03-29 20:14:44,888 INFO L78 Accepts]: Start accepts. Automaton has 76 states. Word has length 264 [2018-03-29 20:14:44,888 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-03-29 20:14:44,889 INFO L225 Difference]: With dead ends: 1016 [2018-03-29 20:14:44,890 INFO L226 Difference]: Without dead ends: 562 [2018-03-29 20:14:44,891 INFO L567 BasicCegarLoop]: 0 DeclaredPredicates, 590 GetRequests, 426 SyntacticMatches, 28 SemanticMatches, 136 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 5584 ImplicationChecksByTransitivity, 2.1s TimeCoverageRelationStatistics Valid=3026, Invalid=15880, Unknown=0, NotChecked=0, Total=18906 [2018-03-29 20:14:44,891 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 562 states. [2018-03-29 20:14:44,916 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 562 to 528. [2018-03-29 20:14:44,916 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 528 states. [2018-03-29 20:14:44,917 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 528 states to 528 states and 558 transitions. [2018-03-29 20:14:44,917 INFO L78 Accepts]: Start accepts. Automaton has 528 states and 558 transitions. Word has length 264 [2018-03-29 20:14:44,917 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-03-29 20:14:44,917 INFO L459 AbstractCegarLoop]: Abstraction has 528 states and 558 transitions. [2018-03-29 20:14:44,917 INFO L460 AbstractCegarLoop]: Interpolant automaton has 76 states. [2018-03-29 20:14:44,917 INFO L276 IsEmpty]: Start isEmpty. Operand 528 states and 558 transitions. [2018-03-29 20:14:44,919 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 275 [2018-03-29 20:14:44,919 INFO L347 BasicCegarLoop]: Found error trace [2018-03-29 20:14:44,919 INFO L355 BasicCegarLoop]: trace histogram [26, 25, 25, 24, 24, 24, 24, 24, 24, 24, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-03-29 20:14:44,919 INFO L408 AbstractCegarLoop]: === Iteration 31 === [__U_MULTI_fbubblesort_alloca_true_valid_memsafety_true_termination_i__bubbleSortErr0RequiresViolation, __U_MULTI_fbubblesort_alloca_true_valid_memsafety_true_termination_i__bubbleSortErr9RequiresViolation, __U_MULTI_fbubblesort_alloca_true_valid_memsafety_true_termination_i__bubbleSortErr2RequiresViolation, __U_MULTI_fbubblesort_alloca_true_valid_memsafety_true_termination_i__bubbleSortErr10RequiresViolation, __U_MULTI_fbubblesort_alloca_true_valid_memsafety_true_termination_i__bubbleSortErr6RequiresViolation, __U_MULTI_fbubblesort_alloca_true_valid_memsafety_true_termination_i__bubbleSortErr1RequiresViolation, __U_MULTI_fbubblesort_alloca_true_valid_memsafety_true_termination_i__bubbleSortErr7RequiresViolation, __U_MULTI_fbubblesort_alloca_true_valid_memsafety_true_termination_i__bubbleSortErr11RequiresViolation, __U_MULTI_fbubblesort_alloca_true_valid_memsafety_true_termination_i__bubbleSortErr8RequiresViolation, __U_MULTI_fbubblesort_alloca_true_valid_memsafety_true_termination_i__bubbleSortErr4RequiresViolation, __U_MULTI_fbubblesort_alloca_true_valid_memsafety_true_termination_i__bubbleSortErr5RequiresViolation, __U_MULTI_fbubblesort_alloca_true_valid_memsafety_true_termination_i__bubbleSortErr3RequiresViolation, mainErr0EnsuresViolationMEMORY_LEAK]=== [2018-03-29 20:14:44,920 INFO L82 PathProgramCache]: Analyzing trace with hash 1654083079, now seen corresponding path program 23 times No working directory specified, using /storage/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 32 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 32 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2018-03-29 20:14:44,927 INFO L68 tionRefinementEngine]: Using refinement strategy FixedRefinementStrategy [2018-03-29 20:14:44,979 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-03-29 20:14:44,982 INFO L270 TraceCheckSpWp]: Computing forward predicates... [2018-03-29 20:14:45,883 INFO L134 CoverageAnalysis]: Checked inductivity of 2909 backedges. 801 proven. 2108 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-03-29 20:14:45,884 INFO L314 TraceCheckSpWp]: Computing backward predicates... [2018-03-29 20:14:46,657 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 [2018-03-29 20:14:46,657 INFO L267 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2018-03-29 20:14:46,689 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. [2018-03-29 20:14:46,689 INFO L202 ElimStorePlain]: Needed 2 recursive calls to eliminate 3 variables, input treesize:26, output treesize:13 [2018-03-29 20:14:46,991 INFO L134 CoverageAnalysis]: Checked inductivity of 2909 backedges. 699 proven. 2210 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-03-29 20:14:47,011 INFO L320 seRefinementStrategy]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2018-03-29 20:14:47,011 INFO L335 seRefinementStrategy]: Number of different interpolants: perfect sequences [] imperfect sequences [51, 51] total 76 [2018-03-29 20:14:47,012 INFO L442 AbstractCegarLoop]: Interpolant automaton has 77 states [2018-03-29 20:14:47,012 INFO L132 InterpolantAutomaton]: Constructing interpolant automaton starting with 77 interpolants. [2018-03-29 20:14:47,012 INFO L133 InterpolantAutomaton]: CoverageRelationStatistics Valid=734, Invalid=5118, Unknown=0, NotChecked=0, Total=5852 [2018-03-29 20:14:47,013 INFO L87 Difference]: Start difference. First operand 528 states and 558 transitions. Second operand 77 states. [2018-03-29 20:14:51,011 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-03-29 20:14:51,012 INFO L93 Difference]: Finished difference Result 529 states and 558 transitions. [2018-03-29 20:14:51,012 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 89 states. [2018-03-29 20:14:51,012 INFO L78 Accepts]: Start accepts. Automaton has 77 states. Word has length 274 [2018-03-29 20:14:51,012 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-03-29 20:14:51,013 INFO L225 Difference]: With dead ends: 529 [2018-03-29 20:14:51,014 INFO L226 Difference]: Without dead ends: 528 [2018-03-29 20:14:51,015 INFO L567 BasicCegarLoop]: 0 DeclaredPredicates, 623 GetRequests, 448 SyntacticMatches, 25 SemanticMatches, 150 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 7975 ImplicationChecksByTransitivity, 3.1s TimeCoverageRelationStatistics Valid=3581, Invalid=19371, Unknown=0, NotChecked=0, Total=22952 [2018-03-29 20:14:51,015 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 528 states. [2018-03-29 20:14:51,041 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 528 to 528. [2018-03-29 20:14:51,041 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 528 states. [2018-03-29 20:14:51,042 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 528 states to 528 states and 557 transitions. [2018-03-29 20:14:51,042 INFO L78 Accepts]: Start accepts. Automaton has 528 states and 557 transitions. Word has length 274 [2018-03-29 20:14:51,042 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-03-29 20:14:51,042 INFO L459 AbstractCegarLoop]: Abstraction has 528 states and 557 transitions. [2018-03-29 20:14:51,042 INFO L460 AbstractCegarLoop]: Interpolant automaton has 77 states. [2018-03-29 20:14:51,043 INFO L276 IsEmpty]: Start isEmpty. Operand 528 states and 557 transitions. [2018-03-29 20:14:51,044 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 285 [2018-03-29 20:14:51,044 INFO L347 BasicCegarLoop]: Found error trace [2018-03-29 20:14:51,044 INFO L355 BasicCegarLoop]: trace histogram [27, 26, 26, 25, 25, 25, 25, 25, 25, 25, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-03-29 20:14:51,044 INFO L408 AbstractCegarLoop]: === Iteration 32 === [__U_MULTI_fbubblesort_alloca_true_valid_memsafety_true_termination_i__bubbleSortErr0RequiresViolation, __U_MULTI_fbubblesort_alloca_true_valid_memsafety_true_termination_i__bubbleSortErr9RequiresViolation, __U_MULTI_fbubblesort_alloca_true_valid_memsafety_true_termination_i__bubbleSortErr2RequiresViolation, __U_MULTI_fbubblesort_alloca_true_valid_memsafety_true_termination_i__bubbleSortErr10RequiresViolation, __U_MULTI_fbubblesort_alloca_true_valid_memsafety_true_termination_i__bubbleSortErr6RequiresViolation, __U_MULTI_fbubblesort_alloca_true_valid_memsafety_true_termination_i__bubbleSortErr1RequiresViolation, __U_MULTI_fbubblesort_alloca_true_valid_memsafety_true_termination_i__bubbleSortErr7RequiresViolation, __U_MULTI_fbubblesort_alloca_true_valid_memsafety_true_termination_i__bubbleSortErr11RequiresViolation, __U_MULTI_fbubblesort_alloca_true_valid_memsafety_true_termination_i__bubbleSortErr8RequiresViolation, __U_MULTI_fbubblesort_alloca_true_valid_memsafety_true_termination_i__bubbleSortErr4RequiresViolation, __U_MULTI_fbubblesort_alloca_true_valid_memsafety_true_termination_i__bubbleSortErr5RequiresViolation, __U_MULTI_fbubblesort_alloca_true_valid_memsafety_true_termination_i__bubbleSortErr3RequiresViolation, mainErr0EnsuresViolationMEMORY_LEAK]=== [2018-03-29 20:14:51,044 INFO L82 PathProgramCache]: Analyzing trace with hash 439762291, now seen corresponding path program 24 times No working directory specified, using /storage/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 33 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 33 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2018-03-29 20:14:51,050 INFO L68 tionRefinementEngine]: Using refinement strategy FixedRefinementStrategy [2018-03-29 20:14:51,105 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-03-29 20:14:51,110 INFO L270 TraceCheckSpWp]: Computing forward predicates... [2018-03-29 20:14:51,859 INFO L134 CoverageAnalysis]: Checked inductivity of 3155 backedges. 737 proven. 2418 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-03-29 20:14:51,860 INFO L314 TraceCheckSpWp]: Computing backward predicates... [2018-03-29 20:14:52,747 INFO L134 CoverageAnalysis]: Checked inductivity of 3155 backedges. 737 proven. 2418 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-03-29 20:14:52,768 INFO L320 seRefinementStrategy]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2018-03-29 20:14:52,768 INFO L335 seRefinementStrategy]: Number of different interpolants: perfect sequences [] imperfect sequences [57, 57] total 82 [2018-03-29 20:14:52,769 INFO L442 AbstractCegarLoop]: Interpolant automaton has 82 states [2018-03-29 20:14:52,769 INFO L132 InterpolantAutomaton]: Constructing interpolant automaton starting with 82 interpolants. [2018-03-29 20:14:52,769 INFO L133 InterpolantAutomaton]: CoverageRelationStatistics Valid=838, Invalid=5804, Unknown=0, NotChecked=0, Total=6642 [2018-03-29 20:14:52,769 INFO L87 Difference]: Start difference. First operand 528 states and 557 transitions. Second operand 82 states. [2018-03-29 20:14:54,678 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-03-29 20:14:54,678 INFO L93 Difference]: Finished difference Result 1092 states and 1153 transitions. [2018-03-29 20:14:54,678 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 84 states. [2018-03-29 20:14:54,678 INFO L78 Accepts]: Start accepts. Automaton has 82 states. Word has length 284 [2018-03-29 20:14:54,679 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-03-29 20:14:54,680 INFO L225 Difference]: With dead ends: 1092 [2018-03-29 20:14:54,680 INFO L226 Difference]: Without dead ends: 600 [2018-03-29 20:14:54,682 INFO L567 BasicCegarLoop]: 0 DeclaredPredicates, 635 GetRequests, 458 SyntacticMatches, 30 SemanticMatches, 147 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 6556 ImplicationChecksByTransitivity, 2.5s TimeCoverageRelationStatistics Valid=3505, Invalid=18547, Unknown=0, NotChecked=0, Total=22052 [2018-03-29 20:14:54,682 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 600 states. [2018-03-29 20:14:54,710 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 600 to 566. [2018-03-29 20:14:54,710 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 566 states. [2018-03-29 20:14:54,711 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 566 states to 566 states and 598 transitions. [2018-03-29 20:14:54,711 INFO L78 Accepts]: Start accepts. Automaton has 566 states and 598 transitions. Word has length 284 [2018-03-29 20:14:54,711 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-03-29 20:14:54,711 INFO L459 AbstractCegarLoop]: Abstraction has 566 states and 598 transitions. [2018-03-29 20:14:54,711 INFO L460 AbstractCegarLoop]: Interpolant automaton has 82 states. [2018-03-29 20:14:54,711 INFO L276 IsEmpty]: Start isEmpty. Operand 566 states and 598 transitions. [2018-03-29 20:14:54,713 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 295 [2018-03-29 20:14:54,713 INFO L347 BasicCegarLoop]: Found error trace [2018-03-29 20:14:54,714 INFO L355 BasicCegarLoop]: trace histogram [28, 27, 27, 26, 26, 26, 26, 26, 26, 26, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-03-29 20:14:54,714 INFO L408 AbstractCegarLoop]: === Iteration 33 === [__U_MULTI_fbubblesort_alloca_true_valid_memsafety_true_termination_i__bubbleSortErr0RequiresViolation, __U_MULTI_fbubblesort_alloca_true_valid_memsafety_true_termination_i__bubbleSortErr9RequiresViolation, __U_MULTI_fbubblesort_alloca_true_valid_memsafety_true_termination_i__bubbleSortErr2RequiresViolation, __U_MULTI_fbubblesort_alloca_true_valid_memsafety_true_termination_i__bubbleSortErr10RequiresViolation, __U_MULTI_fbubblesort_alloca_true_valid_memsafety_true_termination_i__bubbleSortErr6RequiresViolation, __U_MULTI_fbubblesort_alloca_true_valid_memsafety_true_termination_i__bubbleSortErr1RequiresViolation, __U_MULTI_fbubblesort_alloca_true_valid_memsafety_true_termination_i__bubbleSortErr7RequiresViolation, __U_MULTI_fbubblesort_alloca_true_valid_memsafety_true_termination_i__bubbleSortErr11RequiresViolation, __U_MULTI_fbubblesort_alloca_true_valid_memsafety_true_termination_i__bubbleSortErr8RequiresViolation, __U_MULTI_fbubblesort_alloca_true_valid_memsafety_true_termination_i__bubbleSortErr4RequiresViolation, __U_MULTI_fbubblesort_alloca_true_valid_memsafety_true_termination_i__bubbleSortErr5RequiresViolation, __U_MULTI_fbubblesort_alloca_true_valid_memsafety_true_termination_i__bubbleSortErr3RequiresViolation, mainErr0EnsuresViolationMEMORY_LEAK]=== [2018-03-29 20:14:54,714 INFO L82 PathProgramCache]: Analyzing trace with hash -1330369697, now seen corresponding path program 25 times No working directory specified, using /storage/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 34 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 34 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2018-03-29 20:14:54,722 INFO L68 tionRefinementEngine]: Using refinement strategy FixedRefinementStrategy [2018-03-29 20:14:54,787 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-03-29 20:14:54,791 INFO L270 TraceCheckSpWp]: Computing forward predicates... [2018-03-29 20:14:55,962 INFO L134 CoverageAnalysis]: Checked inductivity of 3411 backedges. 933 proven. 2478 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-03-29 20:14:55,962 INFO L314 TraceCheckSpWp]: Computing backward predicates... [2018-03-29 20:14:56,841 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 [2018-03-29 20:14:56,842 INFO L267 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2018-03-29 20:14:56,844 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. [2018-03-29 20:14:56,844 INFO L202 ElimStorePlain]: Needed 2 recursive calls to eliminate 3 variables, input treesize:26, output treesize:13 [2018-03-29 20:14:57,224 INFO L134 CoverageAnalysis]: Checked inductivity of 3411 backedges. 822 proven. 2589 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-03-29 20:14:57,244 INFO L320 seRefinementStrategy]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2018-03-29 20:14:57,245 INFO L335 seRefinementStrategy]: Number of different interpolants: perfect sequences [] imperfect sequences [55, 55] total 82 [2018-03-29 20:14:57,245 INFO L442 AbstractCegarLoop]: Interpolant automaton has 83 states [2018-03-29 20:14:57,246 INFO L132 InterpolantAutomaton]: Constructing interpolant automaton starting with 83 interpolants. [2018-03-29 20:14:57,246 INFO L133 InterpolantAutomaton]: CoverageRelationStatistics Valid=846, Invalid=5960, Unknown=0, NotChecked=0, Total=6806 [2018-03-29 20:14:57,247 INFO L87 Difference]: Start difference. First operand 566 states and 598 transitions. Second operand 83 states. [2018-03-29 20:15:01,643 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-03-29 20:15:01,643 INFO L93 Difference]: Finished difference Result 567 states and 598 transitions. [2018-03-29 20:15:01,644 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 96 states. [2018-03-29 20:15:01,644 INFO L78 Accepts]: Start accepts. Automaton has 83 states. Word has length 294 [2018-03-29 20:15:01,644 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-03-29 20:15:01,645 INFO L225 Difference]: With dead ends: 567 [2018-03-29 20:15:01,645 INFO L226 Difference]: Without dead ends: 566 [2018-03-29 20:15:01,647 INFO L567 BasicCegarLoop]: 0 DeclaredPredicates, 669 GetRequests, 480 SyntacticMatches, 27 SemanticMatches, 162 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 9387 ImplicationChecksByTransitivity, 3.8s TimeCoverageRelationStatistics Valid=4136, Invalid=22596, Unknown=0, NotChecked=0, Total=26732 [2018-03-29 20:15:01,647 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 566 states. [2018-03-29 20:15:01,676 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 566 to 566. [2018-03-29 20:15:01,676 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 566 states. [2018-03-29 20:15:01,677 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 566 states to 566 states and 597 transitions. [2018-03-29 20:15:01,677 INFO L78 Accepts]: Start accepts. Automaton has 566 states and 597 transitions. Word has length 294 [2018-03-29 20:15:01,677 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-03-29 20:15:01,677 INFO L459 AbstractCegarLoop]: Abstraction has 566 states and 597 transitions. [2018-03-29 20:15:01,678 INFO L460 AbstractCegarLoop]: Interpolant automaton has 83 states. [2018-03-29 20:15:01,678 INFO L276 IsEmpty]: Start isEmpty. Operand 566 states and 597 transitions. [2018-03-29 20:15:01,679 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 305 [2018-03-29 20:15:01,679 INFO L347 BasicCegarLoop]: Found error trace [2018-03-29 20:15:01,679 INFO L355 BasicCegarLoop]: trace histogram [29, 28, 28, 27, 27, 27, 27, 27, 27, 27, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-03-29 20:15:01,679 INFO L408 AbstractCegarLoop]: === Iteration 34 === [__U_MULTI_fbubblesort_alloca_true_valid_memsafety_true_termination_i__bubbleSortErr0RequiresViolation, __U_MULTI_fbubblesort_alloca_true_valid_memsafety_true_termination_i__bubbleSortErr9RequiresViolation, __U_MULTI_fbubblesort_alloca_true_valid_memsafety_true_termination_i__bubbleSortErr2RequiresViolation, __U_MULTI_fbubblesort_alloca_true_valid_memsafety_true_termination_i__bubbleSortErr10RequiresViolation, __U_MULTI_fbubblesort_alloca_true_valid_memsafety_true_termination_i__bubbleSortErr6RequiresViolation, __U_MULTI_fbubblesort_alloca_true_valid_memsafety_true_termination_i__bubbleSortErr1RequiresViolation, __U_MULTI_fbubblesort_alloca_true_valid_memsafety_true_termination_i__bubbleSortErr7RequiresViolation, __U_MULTI_fbubblesort_alloca_true_valid_memsafety_true_termination_i__bubbleSortErr11RequiresViolation, __U_MULTI_fbubblesort_alloca_true_valid_memsafety_true_termination_i__bubbleSortErr8RequiresViolation, __U_MULTI_fbubblesort_alloca_true_valid_memsafety_true_termination_i__bubbleSortErr4RequiresViolation, __U_MULTI_fbubblesort_alloca_true_valid_memsafety_true_termination_i__bubbleSortErr5RequiresViolation, __U_MULTI_fbubblesort_alloca_true_valid_memsafety_true_termination_i__bubbleSortErr3RequiresViolation, mainErr0EnsuresViolationMEMORY_LEAK]=== [2018-03-29 20:15:01,679 INFO L82 PathProgramCache]: Analyzing trace with hash 306203851, now seen corresponding path program 26 times No working directory specified, using /storage/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 35 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 35 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2018-03-29 20:15:01,684 INFO L68 tionRefinementEngine]: Using refinement strategy FixedRefinementStrategy [2018-03-29 20:15:01,751 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-03-29 20:15:01,755 INFO L270 TraceCheckSpWp]: Computing forward predicates... [2018-03-29 20:15:02,585 INFO L134 CoverageAnalysis]: Checked inductivity of 3677 backedges. 863 proven. 2814 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-03-29 20:15:02,585 INFO L314 TraceCheckSpWp]: Computing backward predicates... [2018-03-29 20:15:03,600 INFO L134 CoverageAnalysis]: Checked inductivity of 3677 backedges. 863 proven. 2814 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-03-29 20:15:03,621 INFO L320 seRefinementStrategy]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2018-03-29 20:15:03,621 INFO L335 seRefinementStrategy]: Number of different interpolants: perfect sequences [] imperfect sequences [61, 61] total 88 [2018-03-29 20:15:03,622 INFO L442 AbstractCegarLoop]: Interpolant automaton has 88 states [2018-03-29 20:15:03,622 INFO L132 InterpolantAutomaton]: Constructing interpolant automaton starting with 88 interpolants. [2018-03-29 20:15:03,623 INFO L133 InterpolantAutomaton]: CoverageRelationStatistics Valid=958, Invalid=6698, Unknown=0, NotChecked=0, Total=7656 [2018-03-29 20:15:03,623 INFO L87 Difference]: Start difference. First operand 566 states and 597 transitions. Second operand 88 states. [2018-03-29 20:15:05,952 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-03-29 20:15:05,952 INFO L93 Difference]: Finished difference Result 1168 states and 1233 transitions. [2018-03-29 20:15:05,952 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 90 states. [2018-03-29 20:15:05,952 INFO L78 Accepts]: Start accepts. Automaton has 88 states. Word has length 304 [2018-03-29 20:15:05,953 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-03-29 20:15:05,954 INFO L225 Difference]: With dead ends: 1168 [2018-03-29 20:15:05,954 INFO L226 Difference]: Without dead ends: 638 [2018-03-29 20:15:05,956 INFO L567 BasicCegarLoop]: 0 DeclaredPredicates, 680 GetRequests, 490 SyntacticMatches, 32 SemanticMatches, 158 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 7606 ImplicationChecksByTransitivity, 2.9s TimeCoverageRelationStatistics Valid=4019, Invalid=21421, Unknown=0, NotChecked=0, Total=25440 [2018-03-29 20:15:05,956 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 638 states. [2018-03-29 20:15:05,987 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 638 to 604. [2018-03-29 20:15:05,987 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 604 states. [2018-03-29 20:15:05,988 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 604 states to 604 states and 638 transitions. [2018-03-29 20:15:05,988 INFO L78 Accepts]: Start accepts. Automaton has 604 states and 638 transitions. Word has length 304 [2018-03-29 20:15:05,988 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-03-29 20:15:05,989 INFO L459 AbstractCegarLoop]: Abstraction has 604 states and 638 transitions. [2018-03-29 20:15:05,989 INFO L460 AbstractCegarLoop]: Interpolant automaton has 88 states. [2018-03-29 20:15:05,989 INFO L276 IsEmpty]: Start isEmpty. Operand 604 states and 638 transitions. [2018-03-29 20:15:05,990 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 315 [2018-03-29 20:15:05,990 INFO L347 BasicCegarLoop]: Found error trace [2018-03-29 20:15:05,990 INFO L355 BasicCegarLoop]: trace histogram [30, 29, 29, 28, 28, 28, 28, 28, 28, 28, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-03-29 20:15:05,990 INFO L408 AbstractCegarLoop]: === Iteration 35 === [__U_MULTI_fbubblesort_alloca_true_valid_memsafety_true_termination_i__bubbleSortErr0RequiresViolation, __U_MULTI_fbubblesort_alloca_true_valid_memsafety_true_termination_i__bubbleSortErr9RequiresViolation, __U_MULTI_fbubblesort_alloca_true_valid_memsafety_true_termination_i__bubbleSortErr2RequiresViolation, __U_MULTI_fbubblesort_alloca_true_valid_memsafety_true_termination_i__bubbleSortErr10RequiresViolation, __U_MULTI_fbubblesort_alloca_true_valid_memsafety_true_termination_i__bubbleSortErr6RequiresViolation, __U_MULTI_fbubblesort_alloca_true_valid_memsafety_true_termination_i__bubbleSortErr1RequiresViolation, __U_MULTI_fbubblesort_alloca_true_valid_memsafety_true_termination_i__bubbleSortErr7RequiresViolation, __U_MULTI_fbubblesort_alloca_true_valid_memsafety_true_termination_i__bubbleSortErr11RequiresViolation, __U_MULTI_fbubblesort_alloca_true_valid_memsafety_true_termination_i__bubbleSortErr8RequiresViolation, __U_MULTI_fbubblesort_alloca_true_valid_memsafety_true_termination_i__bubbleSortErr4RequiresViolation, __U_MULTI_fbubblesort_alloca_true_valid_memsafety_true_termination_i__bubbleSortErr5RequiresViolation, __U_MULTI_fbubblesort_alloca_true_valid_memsafety_true_termination_i__bubbleSortErr3RequiresViolation, mainErr0EnsuresViolationMEMORY_LEAK]=== [2018-03-29 20:15:05,991 INFO L82 PathProgramCache]: Analyzing trace with hash -1064825673, now seen corresponding path program 27 times No working directory specified, using /storage/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 36 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 36 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2018-03-29 20:15:05,997 INFO L68 tionRefinementEngine]: Using refinement strategy FixedRefinementStrategy [2018-03-29 20:15:06,070 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-03-29 20:15:06,077 INFO L270 TraceCheckSpWp]: Computing forward predicates... [2018-03-29 20:15:07,374 INFO L134 CoverageAnalysis]: Checked inductivity of 3953 backedges. 1075 proven. 2878 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-03-29 20:15:07,374 INFO L314 TraceCheckSpWp]: Computing backward predicates... [2018-03-29 20:15:08,401 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 [2018-03-29 20:15:08,402 INFO L267 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2018-03-29 20:15:08,477 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. [2018-03-29 20:15:08,477 INFO L202 ElimStorePlain]: Needed 2 recursive calls to eliminate 3 variables, input treesize:26, output treesize:13 [2018-03-29 20:15:08,890 INFO L134 CoverageAnalysis]: Checked inductivity of 3953 backedges. 955 proven. 2998 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-03-29 20:15:08,910 INFO L320 seRefinementStrategy]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2018-03-29 20:15:08,910 INFO L335 seRefinementStrategy]: Number of different interpolants: perfect sequences [] imperfect sequences [59, 59] total 88 [2018-03-29 20:15:08,911 INFO L442 AbstractCegarLoop]: Interpolant automaton has 89 states [2018-03-29 20:15:08,911 INFO L132 InterpolantAutomaton]: Constructing interpolant automaton starting with 89 interpolants. [2018-03-29 20:15:08,912 INFO L133 InterpolantAutomaton]: CoverageRelationStatistics Valid=966, Invalid=6866, Unknown=0, NotChecked=0, Total=7832 [2018-03-29 20:15:08,912 INFO L87 Difference]: Start difference. First operand 604 states and 638 transitions. Second operand 89 states. [2018-03-29 20:15:13,285 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-03-29 20:15:13,285 INFO L93 Difference]: Finished difference Result 605 states and 638 transitions. [2018-03-29 20:15:13,286 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 103 states. [2018-03-29 20:15:13,286 INFO L78 Accepts]: Start accepts. Automaton has 89 states. Word has length 314 [2018-03-29 20:15:13,286 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-03-29 20:15:13,287 INFO L225 Difference]: With dead ends: 605 [2018-03-29 20:15:13,287 INFO L226 Difference]: Without dead ends: 604 [2018-03-29 20:15:13,289 INFO L567 BasicCegarLoop]: 0 DeclaredPredicates, 715 GetRequests, 512 SyntacticMatches, 29 SemanticMatches, 174 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 10914 ImplicationChecksByTransitivity, 4.2s TimeCoverageRelationStatistics Valid=4731, Invalid=26069, Unknown=0, NotChecked=0, Total=30800 [2018-03-29 20:15:13,289 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 604 states. [2018-03-29 20:15:13,331 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 604 to 604. [2018-03-29 20:15:13,331 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 604 states. [2018-03-29 20:15:13,332 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 604 states to 604 states and 637 transitions. [2018-03-29 20:15:13,332 INFO L78 Accepts]: Start accepts. Automaton has 604 states and 637 transitions. Word has length 314 [2018-03-29 20:15:13,333 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-03-29 20:15:13,333 INFO L459 AbstractCegarLoop]: Abstraction has 604 states and 637 transitions. [2018-03-29 20:15:13,333 INFO L460 AbstractCegarLoop]: Interpolant automaton has 89 states. [2018-03-29 20:15:13,333 INFO L276 IsEmpty]: Start isEmpty. Operand 604 states and 637 transitions. [2018-03-29 20:15:13,334 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 325 [2018-03-29 20:15:13,334 INFO L347 BasicCegarLoop]: Found error trace [2018-03-29 20:15:13,334 INFO L355 BasicCegarLoop]: trace histogram [31, 30, 30, 29, 29, 29, 29, 29, 29, 29, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-03-29 20:15:13,334 INFO L408 AbstractCegarLoop]: === Iteration 36 === [__U_MULTI_fbubblesort_alloca_true_valid_memsafety_true_termination_i__bubbleSortErr0RequiresViolation, __U_MULTI_fbubblesort_alloca_true_valid_memsafety_true_termination_i__bubbleSortErr9RequiresViolation, __U_MULTI_fbubblesort_alloca_true_valid_memsafety_true_termination_i__bubbleSortErr2RequiresViolation, __U_MULTI_fbubblesort_alloca_true_valid_memsafety_true_termination_i__bubbleSortErr10RequiresViolation, __U_MULTI_fbubblesort_alloca_true_valid_memsafety_true_termination_i__bubbleSortErr6RequiresViolation, __U_MULTI_fbubblesort_alloca_true_valid_memsafety_true_termination_i__bubbleSortErr1RequiresViolation, __U_MULTI_fbubblesort_alloca_true_valid_memsafety_true_termination_i__bubbleSortErr7RequiresViolation, __U_MULTI_fbubblesort_alloca_true_valid_memsafety_true_termination_i__bubbleSortErr11RequiresViolation, __U_MULTI_fbubblesort_alloca_true_valid_memsafety_true_termination_i__bubbleSortErr8RequiresViolation, __U_MULTI_fbubblesort_alloca_true_valid_memsafety_true_termination_i__bubbleSortErr4RequiresViolation, __U_MULTI_fbubblesort_alloca_true_valid_memsafety_true_termination_i__bubbleSortErr5RequiresViolation, __U_MULTI_fbubblesort_alloca_true_valid_memsafety_true_termination_i__bubbleSortErr3RequiresViolation, mainErr0EnsuresViolationMEMORY_LEAK]=== [2018-03-29 20:15:13,335 INFO L82 PathProgramCache]: Analyzing trace with hash -435396573, now seen corresponding path program 28 times No working directory specified, using /storage/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 37 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 37 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2018-03-29 20:15:13,341 INFO L68 tionRefinementEngine]: Using refinement strategy FixedRefinementStrategy [2018-03-29 20:15:13,423 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-03-29 20:15:13,429 INFO L270 TraceCheckSpWp]: Computing forward predicates... [2018-03-29 20:15:14,366 INFO L134 CoverageAnalysis]: Checked inductivity of 4239 backedges. 999 proven. 3240 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-03-29 20:15:14,366 INFO L314 TraceCheckSpWp]: Computing backward predicates... [2018-03-29 20:15:15,431 INFO L134 CoverageAnalysis]: Checked inductivity of 4239 backedges. 999 proven. 3240 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-03-29 20:15:15,451 INFO L320 seRefinementStrategy]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2018-03-29 20:15:15,451 INFO L335 seRefinementStrategy]: Number of different interpolants: perfect sequences [] imperfect sequences [65, 65] total 94 [2018-03-29 20:15:15,452 INFO L442 AbstractCegarLoop]: Interpolant automaton has 94 states [2018-03-29 20:15:15,452 INFO L132 InterpolantAutomaton]: Constructing interpolant automaton starting with 94 interpolants. [2018-03-29 20:15:15,453 INFO L133 InterpolantAutomaton]: CoverageRelationStatistics Valid=1086, Invalid=7656, Unknown=0, NotChecked=0, Total=8742 [2018-03-29 20:15:15,453 INFO L87 Difference]: Start difference. First operand 604 states and 637 transitions. Second operand 94 states. [2018-03-29 20:15:17,846 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-03-29 20:15:17,846 INFO L93 Difference]: Finished difference Result 1244 states and 1313 transitions. [2018-03-29 20:15:17,846 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 96 states. [2018-03-29 20:15:17,846 INFO L78 Accepts]: Start accepts. Automaton has 94 states. Word has length 324 [2018-03-29 20:15:17,847 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-03-29 20:15:17,849 INFO L225 Difference]: With dead ends: 1244 [2018-03-29 20:15:17,849 INFO L226 Difference]: Without dead ends: 676 [2018-03-29 20:15:17,852 INFO L567 BasicCegarLoop]: 0 DeclaredPredicates, 725 GetRequests, 522 SyntacticMatches, 34 SemanticMatches, 169 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 8734 ImplicationChecksByTransitivity, 3.2s TimeCoverageRelationStatistics Valid=4568, Invalid=24502, Unknown=0, NotChecked=0, Total=29070 [2018-03-29 20:15:17,853 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 676 states. [2018-03-29 20:15:17,896 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 676 to 642. [2018-03-29 20:15:17,896 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 642 states. [2018-03-29 20:15:17,897 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 642 states to 642 states and 678 transitions. [2018-03-29 20:15:17,897 INFO L78 Accepts]: Start accepts. Automaton has 642 states and 678 transitions. Word has length 324 [2018-03-29 20:15:17,897 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-03-29 20:15:17,898 INFO L459 AbstractCegarLoop]: Abstraction has 642 states and 678 transitions. [2018-03-29 20:15:17,898 INFO L460 AbstractCegarLoop]: Interpolant automaton has 94 states. [2018-03-29 20:15:17,898 INFO L276 IsEmpty]: Start isEmpty. Operand 642 states and 678 transitions. [2018-03-29 20:15:17,899 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 335 [2018-03-29 20:15:17,899 INFO L347 BasicCegarLoop]: Found error trace [2018-03-29 20:15:17,899 INFO L355 BasicCegarLoop]: trace histogram [32, 31, 31, 30, 30, 30, 30, 30, 30, 30, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-03-29 20:15:17,899 INFO L408 AbstractCegarLoop]: === Iteration 37 === [__U_MULTI_fbubblesort_alloca_true_valid_memsafety_true_termination_i__bubbleSortErr0RequiresViolation, __U_MULTI_fbubblesort_alloca_true_valid_memsafety_true_termination_i__bubbleSortErr9RequiresViolation, __U_MULTI_fbubblesort_alloca_true_valid_memsafety_true_termination_i__bubbleSortErr2RequiresViolation, __U_MULTI_fbubblesort_alloca_true_valid_memsafety_true_termination_i__bubbleSortErr10RequiresViolation, __U_MULTI_fbubblesort_alloca_true_valid_memsafety_true_termination_i__bubbleSortErr6RequiresViolation, __U_MULTI_fbubblesort_alloca_true_valid_memsafety_true_termination_i__bubbleSortErr1RequiresViolation, __U_MULTI_fbubblesort_alloca_true_valid_memsafety_true_termination_i__bubbleSortErr7RequiresViolation, __U_MULTI_fbubblesort_alloca_true_valid_memsafety_true_termination_i__bubbleSortErr11RequiresViolation, __U_MULTI_fbubblesort_alloca_true_valid_memsafety_true_termination_i__bubbleSortErr8RequiresViolation, __U_MULTI_fbubblesort_alloca_true_valid_memsafety_true_termination_i__bubbleSortErr4RequiresViolation, __U_MULTI_fbubblesort_alloca_true_valid_memsafety_true_termination_i__bubbleSortErr5RequiresViolation, __U_MULTI_fbubblesort_alloca_true_valid_memsafety_true_termination_i__bubbleSortErr3RequiresViolation, mainErr0EnsuresViolationMEMORY_LEAK]=== [2018-03-29 20:15:17,899 INFO L82 PathProgramCache]: Analyzing trace with hash 1728115215, now seen corresponding path program 29 times No working directory specified, using /storage/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 38 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 38 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2018-03-29 20:15:17,905 INFO L68 tionRefinementEngine]: Using refinement strategy FixedRefinementStrategy [2018-03-29 20:15:17,967 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-03-29 20:15:17,972 INFO L270 TraceCheckSpWp]: Computing forward predicates... [2018-03-29 20:15:19,319 INFO L134 CoverageAnalysis]: Checked inductivity of 4535 backedges. 1227 proven. 3308 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-03-29 20:15:19,319 INFO L314 TraceCheckSpWp]: Computing backward predicates... [2018-03-29 20:15:20,464 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 [2018-03-29 20:15:20,464 INFO L267 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2018-03-29 20:15:20,467 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. [2018-03-29 20:15:20,467 INFO L202 ElimStorePlain]: Needed 2 recursive calls to eliminate 3 variables, input treesize:26, output treesize:13 [2018-03-29 20:15:20,909 INFO L134 CoverageAnalysis]: Checked inductivity of 4535 backedges. 1098 proven. 3437 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-03-29 20:15:20,930 INFO L320 seRefinementStrategy]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2018-03-29 20:15:20,930 INFO L335 seRefinementStrategy]: Number of different interpolants: perfect sequences [] imperfect sequences [63, 63] total 94 [2018-03-29 20:15:20,931 INFO L442 AbstractCegarLoop]: Interpolant automaton has 95 states [2018-03-29 20:15:20,931 INFO L132 InterpolantAutomaton]: Constructing interpolant automaton starting with 95 interpolants. [2018-03-29 20:15:20,932 INFO L133 InterpolantAutomaton]: CoverageRelationStatistics Valid=1094, Invalid=7836, Unknown=0, NotChecked=0, Total=8930 [2018-03-29 20:15:20,932 INFO L87 Difference]: Start difference. First operand 642 states and 678 transitions. Second operand 95 states. [2018-03-29 20:15:25,569 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-03-29 20:15:25,569 INFO L93 Difference]: Finished difference Result 643 states and 678 transitions. [2018-03-29 20:15:25,570 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 110 states. [2018-03-29 20:15:25,570 INFO L78 Accepts]: Start accepts. Automaton has 95 states. Word has length 334 [2018-03-29 20:15:25,570 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-03-29 20:15:25,572 INFO L225 Difference]: With dead ends: 643 [2018-03-29 20:15:25,572 INFO L226 Difference]: Without dead ends: 642 [2018-03-29 20:15:25,573 INFO L567 BasicCegarLoop]: 0 DeclaredPredicates, 761 GetRequests, 544 SyntacticMatches, 31 SemanticMatches, 186 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 12556 ImplicationChecksByTransitivity, 4.5s TimeCoverageRelationStatistics Valid=5366, Invalid=29790, Unknown=0, NotChecked=0, Total=35156 [2018-03-29 20:15:25,573 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 642 states. [2018-03-29 20:15:25,606 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 642 to 642. [2018-03-29 20:15:25,606 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 642 states. [2018-03-29 20:15:25,607 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 642 states to 642 states and 677 transitions. [2018-03-29 20:15:25,607 INFO L78 Accepts]: Start accepts. Automaton has 642 states and 677 transitions. Word has length 334 [2018-03-29 20:15:25,608 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-03-29 20:15:25,608 INFO L459 AbstractCegarLoop]: Abstraction has 642 states and 677 transitions. [2018-03-29 20:15:25,608 INFO L460 AbstractCegarLoop]: Interpolant automaton has 95 states. [2018-03-29 20:15:25,608 INFO L276 IsEmpty]: Start isEmpty. Operand 642 states and 677 transitions. [2018-03-29 20:15:25,609 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 345 [2018-03-29 20:15:25,609 INFO L347 BasicCegarLoop]: Found error trace [2018-03-29 20:15:25,609 INFO L355 BasicCegarLoop]: trace histogram [33, 32, 32, 31, 31, 31, 31, 31, 31, 31, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-03-29 20:15:25,609 INFO L408 AbstractCegarLoop]: === Iteration 38 === [__U_MULTI_fbubblesort_alloca_true_valid_memsafety_true_termination_i__bubbleSortErr0RequiresViolation, __U_MULTI_fbubblesort_alloca_true_valid_memsafety_true_termination_i__bubbleSortErr9RequiresViolation, __U_MULTI_fbubblesort_alloca_true_valid_memsafety_true_termination_i__bubbleSortErr2RequiresViolation, __U_MULTI_fbubblesort_alloca_true_valid_memsafety_true_termination_i__bubbleSortErr10RequiresViolation, __U_MULTI_fbubblesort_alloca_true_valid_memsafety_true_termination_i__bubbleSortErr6RequiresViolation, __U_MULTI_fbubblesort_alloca_true_valid_memsafety_true_termination_i__bubbleSortErr1RequiresViolation, __U_MULTI_fbubblesort_alloca_true_valid_memsafety_true_termination_i__bubbleSortErr7RequiresViolation, __U_MULTI_fbubblesort_alloca_true_valid_memsafety_true_termination_i__bubbleSortErr11RequiresViolation, __U_MULTI_fbubblesort_alloca_true_valid_memsafety_true_termination_i__bubbleSortErr8RequiresViolation, __U_MULTI_fbubblesort_alloca_true_valid_memsafety_true_termination_i__bubbleSortErr4RequiresViolation, __U_MULTI_fbubblesort_alloca_true_valid_memsafety_true_termination_i__bubbleSortErr5RequiresViolation, __U_MULTI_fbubblesort_alloca_true_valid_memsafety_true_termination_i__bubbleSortErr3RequiresViolation, mainErr0EnsuresViolationMEMORY_LEAK]=== [2018-03-29 20:15:25,609 INFO L82 PathProgramCache]: Analyzing trace with hash -1727498373, now seen corresponding path program 30 times No working directory specified, using /storage/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 39 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 39 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2018-03-29 20:15:25,615 INFO L68 tionRefinementEngine]: Using refinement strategy FixedRefinementStrategy [2018-03-29 20:15:25,677 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-03-29 20:15:25,682 INFO L270 TraceCheckSpWp]: Computing forward predicates... [2018-03-29 20:15:26,707 INFO L134 CoverageAnalysis]: Checked inductivity of 4841 backedges. 1145 proven. 3696 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-03-29 20:15:26,707 INFO L314 TraceCheckSpWp]: Computing backward predicates... [2018-03-29 20:15:27,922 INFO L134 CoverageAnalysis]: Checked inductivity of 4841 backedges. 1145 proven. 3696 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-03-29 20:15:27,943 INFO L320 seRefinementStrategy]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2018-03-29 20:15:27,943 INFO L335 seRefinementStrategy]: Number of different interpolants: perfect sequences [] imperfect sequences [69, 69] total 100 [2018-03-29 20:15:27,944 INFO L442 AbstractCegarLoop]: Interpolant automaton has 100 states [2018-03-29 20:15:27,944 INFO L132 InterpolantAutomaton]: Constructing interpolant automaton starting with 100 interpolants. [2018-03-29 20:15:27,944 INFO L133 InterpolantAutomaton]: CoverageRelationStatistics Valid=1222, Invalid=8678, Unknown=0, NotChecked=0, Total=9900 [2018-03-29 20:15:27,945 INFO L87 Difference]: Start difference. First operand 642 states and 677 transitions. Second operand 100 states. [2018-03-29 20:15:31,350 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-03-29 20:15:31,350 INFO L93 Difference]: Finished difference Result 1320 states and 1393 transitions. [2018-03-29 20:15:31,388 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 102 states. [2018-03-29 20:15:31,388 INFO L78 Accepts]: Start accepts. Automaton has 100 states. Word has length 344 [2018-03-29 20:15:31,388 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-03-29 20:15:31,390 INFO L225 Difference]: With dead ends: 1320 [2018-03-29 20:15:31,390 INFO L226 Difference]: Without dead ends: 714 [2018-03-29 20:15:31,392 INFO L567 BasicCegarLoop]: 0 DeclaredPredicates, 770 GetRequests, 554 SyntacticMatches, 36 SemanticMatches, 180 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 9940 ImplicationChecksByTransitivity, 3.7s TimeCoverageRelationStatistics Valid=5152, Invalid=27790, Unknown=0, NotChecked=0, Total=32942 [2018-03-29 20:15:31,393 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 714 states. [2018-03-29 20:15:31,427 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 714 to 680. [2018-03-29 20:15:31,428 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 680 states. [2018-03-29 20:15:31,429 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 680 states to 680 states and 718 transitions. [2018-03-29 20:15:31,429 INFO L78 Accepts]: Start accepts. Automaton has 680 states and 718 transitions. Word has length 344 [2018-03-29 20:15:31,429 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-03-29 20:15:31,429 INFO L459 AbstractCegarLoop]: Abstraction has 680 states and 718 transitions. [2018-03-29 20:15:31,429 INFO L460 AbstractCegarLoop]: Interpolant automaton has 100 states. [2018-03-29 20:15:31,429 INFO L276 IsEmpty]: Start isEmpty. Operand 680 states and 718 transitions. [2018-03-29 20:15:31,430 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 355 [2018-03-29 20:15:31,431 INFO L347 BasicCegarLoop]: Found error trace [2018-03-29 20:15:31,431 INFO L355 BasicCegarLoop]: trace histogram [34, 33, 33, 32, 32, 32, 32, 32, 32, 32, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-03-29 20:15:31,431 INFO L408 AbstractCegarLoop]: === Iteration 39 === [__U_MULTI_fbubblesort_alloca_true_valid_memsafety_true_termination_i__bubbleSortErr0RequiresViolation, __U_MULTI_fbubblesort_alloca_true_valid_memsafety_true_termination_i__bubbleSortErr9RequiresViolation, __U_MULTI_fbubblesort_alloca_true_valid_memsafety_true_termination_i__bubbleSortErr2RequiresViolation, __U_MULTI_fbubblesort_alloca_true_valid_memsafety_true_termination_i__bubbleSortErr10RequiresViolation, __U_MULTI_fbubblesort_alloca_true_valid_memsafety_true_termination_i__bubbleSortErr6RequiresViolation, __U_MULTI_fbubblesort_alloca_true_valid_memsafety_true_termination_i__bubbleSortErr1RequiresViolation, __U_MULTI_fbubblesort_alloca_true_valid_memsafety_true_termination_i__bubbleSortErr7RequiresViolation, __U_MULTI_fbubblesort_alloca_true_valid_memsafety_true_termination_i__bubbleSortErr11RequiresViolation, __U_MULTI_fbubblesort_alloca_true_valid_memsafety_true_termination_i__bubbleSortErr8RequiresViolation, __U_MULTI_fbubblesort_alloca_true_valid_memsafety_true_termination_i__bubbleSortErr4RequiresViolation, __U_MULTI_fbubblesort_alloca_true_valid_memsafety_true_termination_i__bubbleSortErr5RequiresViolation, __U_MULTI_fbubblesort_alloca_true_valid_memsafety_true_termination_i__bubbleSortErr3RequiresViolation, mainErr0EnsuresViolationMEMORY_LEAK]=== [2018-03-29 20:15:31,431 INFO L82 PathProgramCache]: Analyzing trace with hash 1477237607, now seen corresponding path program 31 times No working directory specified, using /storage/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 40 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 40 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2018-03-29 20:15:31,436 INFO L68 tionRefinementEngine]: Using refinement strategy FixedRefinementStrategy [2018-03-29 20:15:31,504 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-03-29 20:15:31,509 INFO L270 TraceCheckSpWp]: Computing forward predicates... [2018-03-29 20:15:33,035 INFO L134 CoverageAnalysis]: Checked inductivity of 5157 backedges. 1389 proven. 3768 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-03-29 20:15:33,035 INFO L314 TraceCheckSpWp]: Computing backward predicates... [2018-03-29 20:15:34,252 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 [2018-03-29 20:15:34,252 INFO L267 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2018-03-29 20:15:34,255 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. [2018-03-29 20:15:34,255 INFO L202 ElimStorePlain]: Needed 2 recursive calls to eliminate 3 variables, input treesize:26, output treesize:13 [2018-03-29 20:15:34,751 INFO L134 CoverageAnalysis]: Checked inductivity of 5157 backedges. 1251 proven. 3906 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-03-29 20:15:34,772 INFO L320 seRefinementStrategy]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2018-03-29 20:15:34,772 INFO L335 seRefinementStrategy]: Number of different interpolants: perfect sequences [] imperfect sequences [67, 67] total 100 [2018-03-29 20:15:34,772 INFO L442 AbstractCegarLoop]: Interpolant automaton has 101 states [2018-03-29 20:15:34,773 INFO L132 InterpolantAutomaton]: Constructing interpolant automaton starting with 101 interpolants. [2018-03-29 20:15:34,773 INFO L133 InterpolantAutomaton]: CoverageRelationStatistics Valid=1230, Invalid=8870, Unknown=0, NotChecked=0, Total=10100 [2018-03-29 20:15:34,773 INFO L87 Difference]: Start difference. First operand 680 states and 718 transitions. Second operand 101 states. [2018-03-29 20:15:40,143 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-03-29 20:15:40,143 INFO L93 Difference]: Finished difference Result 681 states and 718 transitions. [2018-03-29 20:15:40,143 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 117 states. [2018-03-29 20:15:40,144 INFO L78 Accepts]: Start accepts. Automaton has 101 states. Word has length 354 [2018-03-29 20:15:40,144 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-03-29 20:15:40,146 INFO L225 Difference]: With dead ends: 681 [2018-03-29 20:15:40,146 INFO L226 Difference]: Without dead ends: 680 [2018-03-29 20:15:40,148 INFO L567 BasicCegarLoop]: 0 DeclaredPredicates, 807 GetRequests, 576 SyntacticMatches, 33 SemanticMatches, 198 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 14313 ImplicationChecksByTransitivity, 5.0s TimeCoverageRelationStatistics Valid=6041, Invalid=33759, Unknown=0, NotChecked=0, Total=39800 [2018-03-29 20:15:40,148 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 680 states. [2018-03-29 20:15:40,184 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 680 to 680. [2018-03-29 20:15:40,184 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 680 states. [2018-03-29 20:15:40,185 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 680 states to 680 states and 717 transitions. [2018-03-29 20:15:40,185 INFO L78 Accepts]: Start accepts. Automaton has 680 states and 717 transitions. Word has length 354 [2018-03-29 20:15:40,185 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-03-29 20:15:40,185 INFO L459 AbstractCegarLoop]: Abstraction has 680 states and 717 transitions. [2018-03-29 20:15:40,185 INFO L460 AbstractCegarLoop]: Interpolant automaton has 101 states. [2018-03-29 20:15:40,185 INFO L276 IsEmpty]: Start isEmpty. Operand 680 states and 717 transitions. [2018-03-29 20:15:40,187 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 365 [2018-03-29 20:15:40,187 INFO L347 BasicCegarLoop]: Found error trace [2018-03-29 20:15:40,187 INFO L355 BasicCegarLoop]: trace histogram [35, 34, 34, 33, 33, 33, 33, 33, 33, 33, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-03-29 20:15:40,187 INFO L408 AbstractCegarLoop]: === Iteration 40 === [__U_MULTI_fbubblesort_alloca_true_valid_memsafety_true_termination_i__bubbleSortErr0RequiresViolation, __U_MULTI_fbubblesort_alloca_true_valid_memsafety_true_termination_i__bubbleSortErr9RequiresViolation, __U_MULTI_fbubblesort_alloca_true_valid_memsafety_true_termination_i__bubbleSortErr2RequiresViolation, __U_MULTI_fbubblesort_alloca_true_valid_memsafety_true_termination_i__bubbleSortErr10RequiresViolation, __U_MULTI_fbubblesort_alloca_true_valid_memsafety_true_termination_i__bubbleSortErr6RequiresViolation, __U_MULTI_fbubblesort_alloca_true_valid_memsafety_true_termination_i__bubbleSortErr1RequiresViolation, __U_MULTI_fbubblesort_alloca_true_valid_memsafety_true_termination_i__bubbleSortErr7RequiresViolation, __U_MULTI_fbubblesort_alloca_true_valid_memsafety_true_termination_i__bubbleSortErr11RequiresViolation, __U_MULTI_fbubblesort_alloca_true_valid_memsafety_true_termination_i__bubbleSortErr8RequiresViolation, __U_MULTI_fbubblesort_alloca_true_valid_memsafety_true_termination_i__bubbleSortErr4RequiresViolation, __U_MULTI_fbubblesort_alloca_true_valid_memsafety_true_termination_i__bubbleSortErr5RequiresViolation, __U_MULTI_fbubblesort_alloca_true_valid_memsafety_true_termination_i__bubbleSortErr3RequiresViolation, mainErr0EnsuresViolationMEMORY_LEAK]=== [2018-03-29 20:15:40,187 INFO L82 PathProgramCache]: Analyzing trace with hash 1302500051, now seen corresponding path program 32 times No working directory specified, using /storage/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 41 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 41 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2018-03-29 20:15:40,193 INFO L68 tionRefinementEngine]: Using refinement strategy FixedRefinementStrategy [2018-03-29 20:15:40,258 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-03-29 20:15:40,263 INFO L270 TraceCheckSpWp]: Computing forward predicates... [2018-03-29 20:15:41,444 INFO L134 CoverageAnalysis]: Checked inductivity of 5483 backedges. 1301 proven. 4182 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-03-29 20:15:41,444 INFO L314 TraceCheckSpWp]: Computing backward predicates... [2018-03-29 20:15:42,815 INFO L134 CoverageAnalysis]: Checked inductivity of 5483 backedges. 1301 proven. 4182 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-03-29 20:15:42,838 INFO L320 seRefinementStrategy]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2018-03-29 20:15:42,839 INFO L335 seRefinementStrategy]: Number of different interpolants: perfect sequences [] imperfect sequences [73, 73] total 106 [2018-03-29 20:15:42,839 INFO L442 AbstractCegarLoop]: Interpolant automaton has 106 states [2018-03-29 20:15:42,840 INFO L132 InterpolantAutomaton]: Constructing interpolant automaton starting with 106 interpolants. [2018-03-29 20:15:42,841 INFO L133 InterpolantAutomaton]: CoverageRelationStatistics Valid=1366, Invalid=9764, Unknown=0, NotChecked=0, Total=11130 [2018-03-29 20:15:42,841 INFO L87 Difference]: Start difference. First operand 680 states and 717 transitions. Second operand 106 states. [2018-03-29 20:15:46,230 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-03-29 20:15:46,230 INFO L93 Difference]: Finished difference Result 1396 states and 1473 transitions. [2018-03-29 20:15:46,230 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 108 states. [2018-03-29 20:15:46,230 INFO L78 Accepts]: Start accepts. Automaton has 106 states. Word has length 364 [2018-03-29 20:15:46,231 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-03-29 20:15:46,232 INFO L225 Difference]: With dead ends: 1396 [2018-03-29 20:15:46,233 INFO L226 Difference]: Without dead ends: 752 [2018-03-29 20:15:46,236 INFO L567 BasicCegarLoop]: 0 DeclaredPredicates, 815 GetRequests, 586 SyntacticMatches, 38 SemanticMatches, 191 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 11224 ImplicationChecksByTransitivity, 4.0s TimeCoverageRelationStatistics Valid=5771, Invalid=31285, Unknown=0, NotChecked=0, Total=37056 [2018-03-29 20:15:46,237 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 752 states. [2018-03-29 20:15:46,292 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 752 to 718. [2018-03-29 20:15:46,292 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 718 states. [2018-03-29 20:15:46,292 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 718 states to 718 states and 758 transitions. [2018-03-29 20:15:46,293 INFO L78 Accepts]: Start accepts. Automaton has 718 states and 758 transitions. Word has length 364 [2018-03-29 20:15:46,293 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-03-29 20:15:46,293 INFO L459 AbstractCegarLoop]: Abstraction has 718 states and 758 transitions. [2018-03-29 20:15:46,293 INFO L460 AbstractCegarLoop]: Interpolant automaton has 106 states. [2018-03-29 20:15:46,293 INFO L276 IsEmpty]: Start isEmpty. Operand 718 states and 758 transitions. [2018-03-29 20:15:46,294 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 375 [2018-03-29 20:15:46,295 INFO L347 BasicCegarLoop]: Found error trace [2018-03-29 20:15:46,295 INFO L355 BasicCegarLoop]: trace histogram [36, 35, 35, 34, 34, 34, 34, 34, 34, 34, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-03-29 20:15:46,295 INFO L408 AbstractCegarLoop]: === Iteration 41 === [__U_MULTI_fbubblesort_alloca_true_valid_memsafety_true_termination_i__bubbleSortErr0RequiresViolation, __U_MULTI_fbubblesort_alloca_true_valid_memsafety_true_termination_i__bubbleSortErr9RequiresViolation, __U_MULTI_fbubblesort_alloca_true_valid_memsafety_true_termination_i__bubbleSortErr2RequiresViolation, __U_MULTI_fbubblesort_alloca_true_valid_memsafety_true_termination_i__bubbleSortErr10RequiresViolation, __U_MULTI_fbubblesort_alloca_true_valid_memsafety_true_termination_i__bubbleSortErr6RequiresViolation, __U_MULTI_fbubblesort_alloca_true_valid_memsafety_true_termination_i__bubbleSortErr1RequiresViolation, __U_MULTI_fbubblesort_alloca_true_valid_memsafety_true_termination_i__bubbleSortErr7RequiresViolation, __U_MULTI_fbubblesort_alloca_true_valid_memsafety_true_termination_i__bubbleSortErr11RequiresViolation, __U_MULTI_fbubblesort_alloca_true_valid_memsafety_true_termination_i__bubbleSortErr8RequiresViolation, __U_MULTI_fbubblesort_alloca_true_valid_memsafety_true_termination_i__bubbleSortErr4RequiresViolation, __U_MULTI_fbubblesort_alloca_true_valid_memsafety_true_termination_i__bubbleSortErr5RequiresViolation, __U_MULTI_fbubblesort_alloca_true_valid_memsafety_true_termination_i__bubbleSortErr3RequiresViolation, mainErr0EnsuresViolationMEMORY_LEAK]=== [2018-03-29 20:15:46,295 INFO L82 PathProgramCache]: Analyzing trace with hash 647612607, now seen corresponding path program 33 times No working directory specified, using /storage/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 42 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 42 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2018-03-29 20:15:46,301 INFO L68 tionRefinementEngine]: Using refinement strategy FixedRefinementStrategy [2018-03-29 20:15:46,373 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-03-29 20:15:46,378 INFO L270 TraceCheckSpWp]: Computing forward predicates... [2018-03-29 20:15:48,095 INFO L134 CoverageAnalysis]: Checked inductivity of 5819 backedges. 1561 proven. 4258 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-03-29 20:15:48,095 INFO L314 TraceCheckSpWp]: Computing backward predicates... [2018-03-29 20:15:49,457 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 [2018-03-29 20:15:49,457 INFO L267 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2018-03-29 20:15:49,459 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. [2018-03-29 20:15:49,460 INFO L202 ElimStorePlain]: Needed 2 recursive calls to eliminate 3 variables, input treesize:26, output treesize:13 [2018-03-29 20:15:50,002 INFO L134 CoverageAnalysis]: Checked inductivity of 5819 backedges. 1414 proven. 4405 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-03-29 20:15:50,023 INFO L320 seRefinementStrategy]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2018-03-29 20:15:50,023 INFO L335 seRefinementStrategy]: Number of different interpolants: perfect sequences [] imperfect sequences [71, 71] total 106 [2018-03-29 20:15:50,023 INFO L442 AbstractCegarLoop]: Interpolant automaton has 107 states [2018-03-29 20:15:50,024 INFO L132 InterpolantAutomaton]: Constructing interpolant automaton starting with 107 interpolants. [2018-03-29 20:15:50,024 INFO L133 InterpolantAutomaton]: CoverageRelationStatistics Valid=1374, Invalid=9968, Unknown=0, NotChecked=0, Total=11342 [2018-03-29 20:15:50,024 INFO L87 Difference]: Start difference. First operand 718 states and 758 transitions. Second operand 107 states. [2018-03-29 20:15:55,452 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-03-29 20:15:55,452 INFO L93 Difference]: Finished difference Result 719 states and 758 transitions. [2018-03-29 20:15:55,452 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 124 states. [2018-03-29 20:15:55,452 INFO L78 Accepts]: Start accepts. Automaton has 107 states. Word has length 374 [2018-03-29 20:15:55,452 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-03-29 20:15:55,454 INFO L225 Difference]: With dead ends: 719 [2018-03-29 20:15:55,454 INFO L226 Difference]: Without dead ends: 718 [2018-03-29 20:15:55,456 INFO L567 BasicCegarLoop]: 0 DeclaredPredicates, 853 GetRequests, 608 SyntacticMatches, 35 SemanticMatches, 210 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 16185 ImplicationChecksByTransitivity, 5.6s TimeCoverageRelationStatistics Valid=6756, Invalid=37976, Unknown=0, NotChecked=0, Total=44732 [2018-03-29 20:15:55,456 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 718 states. [2018-03-29 20:15:55,495 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 718 to 718. [2018-03-29 20:15:55,496 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 718 states. [2018-03-29 20:15:55,496 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 718 states to 718 states and 757 transitions. [2018-03-29 20:15:55,496 INFO L78 Accepts]: Start accepts. Automaton has 718 states and 757 transitions. Word has length 374 [2018-03-29 20:15:55,497 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-03-29 20:15:55,497 INFO L459 AbstractCegarLoop]: Abstraction has 718 states and 757 transitions. [2018-03-29 20:15:55,497 INFO L460 AbstractCegarLoop]: Interpolant automaton has 107 states. [2018-03-29 20:15:55,497 INFO L276 IsEmpty]: Start isEmpty. Operand 718 states and 757 transitions. [2018-03-29 20:15:55,498 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 385 [2018-03-29 20:15:55,498 INFO L347 BasicCegarLoop]: Found error trace [2018-03-29 20:15:55,498 INFO L355 BasicCegarLoop]: trace histogram [37, 36, 36, 35, 35, 35, 35, 35, 35, 35, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-03-29 20:15:55,499 INFO L408 AbstractCegarLoop]: === Iteration 42 === [__U_MULTI_fbubblesort_alloca_true_valid_memsafety_true_termination_i__bubbleSortErr0RequiresViolation, __U_MULTI_fbubblesort_alloca_true_valid_memsafety_true_termination_i__bubbleSortErr9RequiresViolation, __U_MULTI_fbubblesort_alloca_true_valid_memsafety_true_termination_i__bubbleSortErr2RequiresViolation, __U_MULTI_fbubblesort_alloca_true_valid_memsafety_true_termination_i__bubbleSortErr10RequiresViolation, __U_MULTI_fbubblesort_alloca_true_valid_memsafety_true_termination_i__bubbleSortErr6RequiresViolation, __U_MULTI_fbubblesort_alloca_true_valid_memsafety_true_termination_i__bubbleSortErr1RequiresViolation, __U_MULTI_fbubblesort_alloca_true_valid_memsafety_true_termination_i__bubbleSortErr7RequiresViolation, __U_MULTI_fbubblesort_alloca_true_valid_memsafety_true_termination_i__bubbleSortErr11RequiresViolation, __U_MULTI_fbubblesort_alloca_true_valid_memsafety_true_termination_i__bubbleSortErr8RequiresViolation, __U_MULTI_fbubblesort_alloca_true_valid_memsafety_true_termination_i__bubbleSortErr4RequiresViolation, __U_MULTI_fbubblesort_alloca_true_valid_memsafety_true_termination_i__bubbleSortErr5RequiresViolation, __U_MULTI_fbubblesort_alloca_true_valid_memsafety_true_termination_i__bubbleSortErr3RequiresViolation, mainErr0EnsuresViolationMEMORY_LEAK]=== [2018-03-29 20:15:55,499 INFO L82 PathProgramCache]: Analyzing trace with hash 1162392107, now seen corresponding path program 34 times No working directory specified, using /storage/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 43 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 43 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2018-03-29 20:15:55,504 INFO L68 tionRefinementEngine]: Using refinement strategy FixedRefinementStrategy [2018-03-29 20:15:55,576 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-03-29 20:15:55,581 INFO L270 TraceCheckSpWp]: Computing forward predicates... [2018-03-29 20:15:56,877 INFO L134 CoverageAnalysis]: Checked inductivity of 6165 backedges. 1467 proven. 4698 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-03-29 20:15:56,877 INFO L314 TraceCheckSpWp]: Computing backward predicates... [2018-03-29 20:15:58,386 INFO L134 CoverageAnalysis]: Checked inductivity of 6165 backedges. 1467 proven. 4698 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-03-29 20:15:58,406 INFO L320 seRefinementStrategy]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2018-03-29 20:15:58,407 INFO L335 seRefinementStrategy]: Number of different interpolants: perfect sequences [] imperfect sequences [77, 77] total 112 [2018-03-29 20:15:58,407 INFO L442 AbstractCegarLoop]: Interpolant automaton has 112 states [2018-03-29 20:15:58,408 INFO L132 InterpolantAutomaton]: Constructing interpolant automaton starting with 112 interpolants. [2018-03-29 20:15:58,408 INFO L133 InterpolantAutomaton]: CoverageRelationStatistics Valid=1518, Invalid=10914, Unknown=0, NotChecked=0, Total=12432 [2018-03-29 20:15:58,408 INFO L87 Difference]: Start difference. First operand 718 states and 757 transitions. Second operand 112 states. Received shutdown request... [2018-03-29 20:15:58,658 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2018-03-29 20:15:58,658 WARN L519 AbstractCegarLoop]: Verification canceled [2018-03-29 20:15:58,662 WARN L197 ceAbstractionStarter]: Timeout [2018-03-29 20:15:58,662 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 29.03 08:15:58 BoogieIcfgContainer [2018-03-29 20:15:58,662 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2018-03-29 20:15:58,663 INFO L168 Benchmark]: Toolchain (without parser) took 128744.71 ms. Allocated memory was 307.8 MB in the beginning and 1.0 GB in the end (delta: 714.6 MB). Free memory was 245.2 MB in the beginning and 919.6 MB in the end (delta: -674.4 MB). Peak memory consumption was 40.2 MB. Max. memory is 5.3 GB. [2018-03-29 20:15:58,664 INFO L168 Benchmark]: CDTParser took 0.18 ms. Allocated memory is still 307.8 MB. Free memory is still 269.9 MB. There was no memory consumed. Max. memory is 5.3 GB. [2018-03-29 20:15:58,664 INFO L168 Benchmark]: CACSL2BoogieTranslator took 311.55 ms. Allocated memory is still 307.8 MB. Free memory was 245.2 MB in the beginning and 221.2 MB in the end (delta: 24.0 MB). Peak memory consumption was 24.0 MB. Max. memory is 5.3 GB. [2018-03-29 20:15:58,664 INFO L168 Benchmark]: Boogie Preprocessor took 51.86 ms. Allocated memory is still 307.8 MB. Free memory was 221.2 MB in the beginning and 219.2 MB in the end (delta: 2.0 MB). Peak memory consumption was 2.0 MB. Max. memory is 5.3 GB. [2018-03-29 20:15:58,665 INFO L168 Benchmark]: RCFGBuilder took 498.85 ms. Allocated memory was 307.8 MB in the beginning and 469.8 MB in the end (delta: 162.0 MB). Free memory was 219.2 MB in the beginning and 406.0 MB in the end (delta: -186.9 MB). Peak memory consumption was 22.8 MB. Max. memory is 5.3 GB. [2018-03-29 20:15:58,665 INFO L168 Benchmark]: TraceAbstraction took 127876.96 ms. Allocated memory was 469.8 MB in the beginning and 1.0 GB in the end (delta: 552.6 MB). Free memory was 406.0 MB in the beginning and 919.6 MB in the end (delta: -513.6 MB). Peak memory consumption was 39.0 MB. Max. memory is 5.3 GB. [2018-03-29 20:15:58,666 INFO L344 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.18 ms. Allocated memory is still 307.8 MB. Free memory is still 269.9 MB. There was no memory consumed. Max. memory is 5.3 GB. * CACSL2BoogieTranslator took 311.55 ms. Allocated memory is still 307.8 MB. Free memory was 245.2 MB in the beginning and 221.2 MB in the end (delta: 24.0 MB). Peak memory consumption was 24.0 MB. Max. memory is 5.3 GB. * Boogie Preprocessor took 51.86 ms. Allocated memory is still 307.8 MB. Free memory was 221.2 MB in the beginning and 219.2 MB in the end (delta: 2.0 MB). Peak memory consumption was 2.0 MB. Max. memory is 5.3 GB. * RCFGBuilder took 498.85 ms. Allocated memory was 307.8 MB in the beginning and 469.8 MB in the end (delta: 162.0 MB). Free memory was 219.2 MB in the beginning and 406.0 MB in the end (delta: -186.9 MB). Peak memory consumption was 22.8 MB. Max. memory is 5.3 GB. * TraceAbstraction took 127876.96 ms. Allocated memory was 469.8 MB in the beginning and 1.0 GB in the end (delta: 552.6 MB). Free memory was 406.0 MB in the beginning and 919.6 MB in the end (delta: -513.6 MB). Peak memory consumption was 39.0 MB. Max. memory is 5.3 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - TimeoutResultAtElement [Line: 545]: Timeout (TraceAbstraction) Unable to prove that pointer dereference always succeeds (line 545). Cancelled while BasicCegarLoop was constructing difference of abstraction (718states) and interpolant automaton (currently 13 states, 112 states before enhancement), while PredicateComparison was comparing new predicate (quantifier-free) to 119 known predicates. - TimeoutResultAtElement [Line: 547]: Timeout (TraceAbstraction) Unable to prove that pointer dereference always succeeds (line 547). Cancelled while BasicCegarLoop was constructing difference of abstraction (718states) and interpolant automaton (currently 13 states, 112 states before enhancement), while PredicateComparison was comparing new predicate (quantifier-free) to 119 known predicates. - TimeoutResultAtElement [Line: 545]: Timeout (TraceAbstraction) Unable to prove that pointer dereference always succeeds (line 545). Cancelled while BasicCegarLoop was constructing difference of abstraction (718states) and interpolant automaton (currently 13 states, 112 states before enhancement), while PredicateComparison was comparing new predicate (quantifier-free) to 119 known predicates. - TimeoutResultAtElement [Line: 548]: Timeout (TraceAbstraction) Unable to prove that pointer dereference always succeeds (line 548). Cancelled while BasicCegarLoop was constructing difference of abstraction (718states) and interpolant automaton (currently 13 states, 112 states before enhancement), while PredicateComparison was comparing new predicate (quantifier-free) to 119 known predicates. - TimeoutResultAtElement [Line: 547]: Timeout (TraceAbstraction) Unable to prove that pointer dereference always succeeds (line 547). Cancelled while BasicCegarLoop was constructing difference of abstraction (718states) and interpolant automaton (currently 13 states, 112 states before enhancement), while PredicateComparison was comparing new predicate (quantifier-free) to 119 known predicates. - TimeoutResultAtElement [Line: 545]: Timeout (TraceAbstraction) Unable to prove that pointer dereference always succeeds (line 545). Cancelled while BasicCegarLoop was constructing difference of abstraction (718states) and interpolant automaton (currently 13 states, 112 states before enhancement), while PredicateComparison was comparing new predicate (quantifier-free) to 119 known predicates. - TimeoutResultAtElement [Line: 547]: Timeout (TraceAbstraction) Unable to prove that pointer dereference always succeeds (line 547). Cancelled while BasicCegarLoop was constructing difference of abstraction (718states) and interpolant automaton (currently 13 states, 112 states before enhancement), while PredicateComparison was comparing new predicate (quantifier-free) to 119 known predicates. - TimeoutResultAtElement [Line: 548]: Timeout (TraceAbstraction) Unable to prove that pointer dereference always succeeds (line 548). Cancelled while BasicCegarLoop was constructing difference of abstraction (718states) and interpolant automaton (currently 13 states, 112 states before enhancement), while PredicateComparison was comparing new predicate (quantifier-free) to 119 known predicates. - TimeoutResultAtElement [Line: 547]: Timeout (TraceAbstraction) Unable to prove that pointer dereference always succeeds (line 547). Cancelled while BasicCegarLoop was constructing difference of abstraction (718states) and interpolant automaton (currently 13 states, 112 states before enhancement), while PredicateComparison was comparing new predicate (quantifier-free) to 119 known predicates. - TimeoutResultAtElement [Line: 546]: Timeout (TraceAbstraction) Unable to prove that pointer dereference always succeeds (line 546). Cancelled while BasicCegarLoop was constructing difference of abstraction (718states) and interpolant automaton (currently 13 states, 112 states before enhancement), while PredicateComparison was comparing new predicate (quantifier-free) to 119 known predicates. - TimeoutResultAtElement [Line: 546]: Timeout (TraceAbstraction) Unable to prove that pointer dereference always succeeds (line 546). Cancelled while BasicCegarLoop was constructing difference of abstraction (718states) and interpolant automaton (currently 13 states, 112 states before enhancement), while PredicateComparison was comparing new predicate (quantifier-free) to 119 known predicates. - TimeoutResultAtElement [Line: 545]: Timeout (TraceAbstraction) Unable to prove that pointer dereference always succeeds (line 545). Cancelled while BasicCegarLoop was constructing difference of abstraction (718states) and interpolant automaton (currently 13 states, 112 states before enhancement), while PredicateComparison was comparing new predicate (quantifier-free) to 119 known predicates. - TimeoutResultAtElement [Line: 553]: Timeout (TraceAbstraction) Unable to prove that all allocated memory was freed (line 553). Cancelled while BasicCegarLoop was constructing difference of abstraction (718states) and interpolant automaton (currently 13 states, 112 states before enhancement), while PredicateComparison was comparing new predicate (quantifier-free) to 119 known predicates. - StatisticsResult: Ultimate Automizer benchmark data CFG has 6 procedures, 77 locations, 13 error locations. TIMEOUT Result, 127.8s OverallTime, 42 OverallIterations, 37 TraceHistogramMax, 73.7s AutomataDifference, 0.0s DeadEndRemovalTime, 0.0s HoareAnnotationTime, HoareTripleCheckerStatistics: 6528 SDtfs, 23904 SDslu, 87922 SDs, 0 SdLazy, 73108 SolverSat, 2092 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 29.5s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 17204 GetRequests, 12551 SyntacticMatches, 743 SemanticMatches, 3909 ConstructedPredicates, 6 IntricatePredicates, 0 DeprecatedPredicates, 174665 ImplicationChecksByTransitivity, 76.6s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=718occurred in iteration=40, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s AbstIntTime, 0 AbstIntIterations, 0 AbstIntStrong, NaN AbsIntWeakeningRatio, NaN AbsIntAvgWeakeningVarsNumRemoved, NaN AbsIntAvgWeakenedConjuncts, 0.0s DumpTime, AutomataMinimizationStatistics: 0.9s AutomataMinimizationTime, 41 MinimizatonAttempts, 685 StatesRemovedByMinimization, 23 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TraceCheckStatistics: 0.3s SsaConstructionTime, 1.3s SatisfiabilityAnalysisTime, 49.7s InterpolantComputationTime, 7698 NumberOfCodeBlocks, 7698 NumberOfCodeBlocksAsserted, 42 NumberOfCheckSat, 15312 ConstructedInterpolants, 3379 QuantifiedInterpolants, 29070711 SizeOfPredicates, 1434 NumberOfNonLiveVariables, 17488 ConjunctsInSsa, 1491 ConjunctsInUnsatCore, 84 InterpolantComputations, 14 PerfectInterpolantSequences, 36996/150720 InterpolantCoveringCapability, InvariantSynthesisStatistics: No data available, InterpolantConsolidationStatistics: No data available, ReuseStatistics: No data available RESULT: Ultimate could not prove your program: Timeout Written .csv to /storage/ultimate/releaseScripts/default/UAutomizer-linux/../../../releaseScripts/default/UAutomizer-linux/csv/bubblesort-alloca_true-valid-memsafety_true-termination.i_svcomp-DerefFreeMemtrack-32bit-Automizer_Fixed_noBitfields+AI_EQ_SS.epf_AutomizerC.xml/Csv-Benchmark-0-2018-03-29_20-15-58-675.csv Written .csv to /storage/ultimate/releaseScripts/default/UAutomizer-linux/../../../releaseScripts/default/UAutomizer-linux/csv/bubblesort-alloca_true-valid-memsafety_true-termination.i_svcomp-DerefFreeMemtrack-32bit-Automizer_Fixed_noBitfields+AI_EQ_SS.epf_AutomizerC.xml/Csv-TraceAbstractionBenchmarks-0-2018-03-29_20-15-58-675.csv Completed graceful shutdown