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/subseq-alloca_true-valid-memsafety_true-termination.i -------------------------------------------------------------------------------- This is Ultimate 0.1.23-1cf7e2d-m [2018-03-29 20:46:19,701 INFO L170 SettingsManager]: Resetting all preferences to default values... [2018-03-29 20:46:19,702 INFO L174 SettingsManager]: Resetting UltimateCore preferences to default values [2018-03-29 20:46:19,716 INFO L177 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... 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[2018-03-29 20:46:19,745 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 20:46:19,769 INFO L110 SettingsManager]: Loading preferences was successful [2018-03-29 20:46:19,769 INFO L112 SettingsManager]: Preferences different from defaults after loading the file: [2018-03-29 20:46:19,769 INFO L131 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2018-03-29 20:46:19,769 INFO L133 SettingsManager]: * ultimate.logging.details=de.uni_freiburg.informatik.ultimate.plugins.icfgtransformation=DEBUG; [2018-03-29 20:46:19,770 INFO L131 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2018-03-29 20:46:19,770 INFO L133 SettingsManager]: * to procedures, called more than once=true [2018-03-29 20:46:19,771 INFO L131 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2018-03-29 20:46:19,771 INFO L133 SettingsManager]: * Abstract domain for RCFG-of-the-future=VPDomain [2018-03-29 20:46:19,771 INFO L133 SettingsManager]: * Use the RCFG-of-the-future interface=true [2018-03-29 20:46:19,771 INFO L131 SettingsManager]: Preferences of LTL2Aut differ from their defaults: [2018-03-29 20:46:19,772 INFO L133 SettingsManager]: * Property to check=[] a a: x > 42 [2018-03-29 20:46:19,772 INFO L131 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2018-03-29 20:46:19,772 INFO L133 SettingsManager]: * sizeof long=4 [2018-03-29 20:46:19,772 INFO L133 SettingsManager]: * Check unreachability of error function in SV-COMP mode=false [2018-03-29 20:46:19,772 INFO L133 SettingsManager]: * Overapproximate operations on floating types=true [2018-03-29 20:46:19,772 INFO L133 SettingsManager]: * sizeof POINTER=4 [2018-03-29 20:46:19,773 INFO L133 SettingsManager]: * Check division by zero=IGNORE [2018-03-29 20:46:19,773 INFO L133 SettingsManager]: * Check for the main procedure if all allocated memory was freed=true [2018-03-29 20:46:19,773 INFO L133 SettingsManager]: * SV-COMP memtrack compatibility mode=true [2018-03-29 20:46:19,773 INFO L133 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2018-03-29 20:46:19,773 INFO L133 SettingsManager]: * sizeof long double=12 [2018-03-29 20:46:19,773 INFO L131 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2018-03-29 20:46:19,774 INFO L133 SettingsManager]: * Size of a code block=SingleStatement [2018-03-29 20:46:19,774 INFO L133 SettingsManager]: * Add additional assume for each assert=false [2018-03-29 20:46:19,774 INFO L133 SettingsManager]: * SMT solver=External_DefaultMode [2018-03-29 20:46:19,774 INFO L133 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2018-03-29 20:46:19,774 INFO L131 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2018-03-29 20:46:19,774 INFO L133 SettingsManager]: * Interpolant automaton=TWOTRACK [2018-03-29 20:46:19,775 INFO L133 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2018-03-29 20:46:19,775 INFO L133 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2018-03-29 20:46:19,775 INFO L133 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2018-03-29 20:46:19,775 INFO L133 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2018-03-29 20:46:19,775 INFO L133 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2018-03-29 20:46:19,776 INFO L131 SettingsManager]: Preferences of IcfgTransformer differ from their defaults: [2018-03-29 20:46:19,776 INFO L133 SettingsManager]: * TransformationType=HEAP_SEPARATOR [2018-03-29 20:46:19,776 INFO L131 SettingsManager]: Preferences of Boogie Printer differ from their defaults: [2018-03-29 20:46:19,777 INFO L133 SettingsManager]: * Dump path:=C:\Users\alex\AppData\Local\Temp\ [2018-03-29 20:46:19,809 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2018-03-29 20:46:19,820 INFO L266 ainManager$Toolchain]: [Toolchain 1]: Parser(s) successfully (re)initialized [2018-03-29 20:46:19,823 INFO L222 ainManager$Toolchain]: [Toolchain 1]: Toolchain data selected. [2018-03-29 20:46:19,824 INFO L271 PluginConnector]: Initializing CDTParser... [2018-03-29 20:46:19,825 INFO L276 PluginConnector]: CDTParser initialized [2018-03-29 20:46:19,825 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/array-memsafety/subseq-alloca_true-valid-memsafety_true-termination.i [2018-03-29 20:46:20,150 INFO L225 CDTParser]: Created temporary CDT project at /storage/ultimate/releaseScripts/default/UAutomizer-linux/data/FLAG0b603362a [2018-03-29 20:46:20,334 INFO L287 CDTParser]: IsIndexed: true [2018-03-29 20:46:20,334 INFO L288 CDTParser]: Found 1 translation units. [2018-03-29 20:46:20,335 INFO L168 CDTParser]: Scanning subseq-alloca_true-valid-memsafety_true-termination.i [2018-03-29 20:46:20,345 INFO L210 ultiparseSymbolTable]: Include resolver: [2018-03-29 20:46:20,345 INFO L215 ultiparseSymbolTable]: [2018-03-29 20:46:20,345 INFO L218 ultiparseSymbolTable]: Function table: [2018-03-29 20:46:20,346 INFO L221 ultiparseSymbolTable]: Function definition of __U_MULTI_fsubseq_alloca_true_valid_memsafety_true_termination_i____bswap_64 ('__bswap_64') in subseq-alloca_true-valid-memsafety_true-termination.i [2018-03-29 20:46:20,346 INFO L221 ultiparseSymbolTable]: Function definition of null ('main') in subseq-alloca_true-valid-memsafety_true-termination.i [2018-03-29 20:46:20,346 INFO L221 ultiparseSymbolTable]: Function definition of __U_MULTI_fsubseq_alloca_true_valid_memsafety_true_termination_i____bswap_32 ('__bswap_32') in subseq-alloca_true-valid-memsafety_true-termination.i [2018-03-29 20:46:20,346 INFO L221 ultiparseSymbolTable]: Function definition of __U_MULTI_fsubseq_alloca_true_valid_memsafety_true_termination_i__ ('') in subseq-alloca_true-valid-memsafety_true-termination.i [2018-03-29 20:46:20,346 INFO L227 ultiparseSymbolTable]: Global variable table: [2018-03-29 20:46:20,346 INFO L230 ultiparseSymbolTable]: Global variable declaration of __U_MULTI_fsubseq_alloca_true_valid_memsafety_true_termination_i____intptr_t in subseq-alloca_true-valid-memsafety_true-termination.i [2018-03-29 20:46:20,346 INFO L230 ultiparseSymbolTable]: Global variable declaration of __U_MULTI_fsubseq_alloca_true_valid_memsafety_true_termination_i____ssize_t in subseq-alloca_true-valid-memsafety_true-termination.i [2018-03-29 20:46:20,346 INFO L230 ultiparseSymbolTable]: Global variable declaration of __U_MULTI_fsubseq_alloca_true_valid_memsafety_true_termination_i__pthread_mutexattr_t in subseq-alloca_true-valid-memsafety_true-termination.i [2018-03-29 20:46:20,347 INFO L230 ultiparseSymbolTable]: Global variable declaration of __U_MULTI_fsubseq_alloca_true_valid_memsafety_true_termination_i__fsfilcnt_t in subseq-alloca_true-valid-memsafety_true-termination.i [2018-03-29 20:46:20,347 INFO L230 ultiparseSymbolTable]: Global variable declaration of __U_MULTI_fsubseq_alloca_true_valid_memsafety_true_termination_i____timer_t in subseq-alloca_true-valid-memsafety_true-termination.i [2018-03-29 20:46:20,347 INFO L230 ultiparseSymbolTable]: Global variable declaration of __U_MULTI_fsubseq_alloca_true_valid_memsafety_true_termination_i____mode_t in subseq-alloca_true-valid-memsafety_true-termination.i [2018-03-29 20:46:20,347 INFO L230 ultiparseSymbolTable]: Global variable declaration of __U_MULTI_fsubseq_alloca_true_valid_memsafety_true_termination_i__int32_t in subseq-alloca_true-valid-memsafety_true-termination.i [2018-03-29 20:46:20,347 INFO L230 ultiparseSymbolTable]: Global variable declaration of __U_MULTI_fsubseq_alloca_true_valid_memsafety_true_termination_i____u_short in subseq-alloca_true-valid-memsafety_true-termination.i [2018-03-29 20:46:20,347 INFO L230 ultiparseSymbolTable]: Global variable declaration of __U_MULTI_fsubseq_alloca_true_valid_memsafety_true_termination_i____socklen_t in subseq-alloca_true-valid-memsafety_true-termination.i [2018-03-29 20:46:20,347 INFO L230 ultiparseSymbolTable]: Global variable declaration of __U_MULTI_fsubseq_alloca_true_valid_memsafety_true_termination_i__key_t in subseq-alloca_true-valid-memsafety_true-termination.i [2018-03-29 20:46:20,348 INFO L230 ultiparseSymbolTable]: Global variable declaration of __U_MULTI_fsubseq_alloca_true_valid_memsafety_true_termination_i__size_t in subseq-alloca_true-valid-memsafety_true-termination.i [2018-03-29 20:46:20,348 INFO L230 ultiparseSymbolTable]: Global variable declaration of __U_MULTI_fsubseq_alloca_true_valid_memsafety_true_termination_i__off_t in subseq-alloca_true-valid-memsafety_true-termination.i [2018-03-29 20:46:20,348 INFO L230 ultiparseSymbolTable]: Global variable declaration of __U_MULTI_fsubseq_alloca_true_valid_memsafety_true_termination_i____int32_t in subseq-alloca_true-valid-memsafety_true-termination.i [2018-03-29 20:46:20,348 INFO L230 ultiparseSymbolTable]: Global variable declaration of __U_MULTI_fsubseq_alloca_true_valid_memsafety_true_termination_i____rlim_t in subseq-alloca_true-valid-memsafety_true-termination.i [2018-03-29 20:46:20,348 INFO L230 ultiparseSymbolTable]: Global variable declaration of __U_MULTI_fsubseq_alloca_true_valid_memsafety_true_termination_i__fsblkcnt_t in subseq-alloca_true-valid-memsafety_true-termination.i [2018-03-29 20:46:20,348 INFO L230 ultiparseSymbolTable]: Global variable declaration of __U_MULTI_fsubseq_alloca_true_valid_memsafety_true_termination_i____rlim64_t in subseq-alloca_true-valid-memsafety_true-termination.i [2018-03-29 20:46:20,348 INFO L230 ultiparseSymbolTable]: Global variable declaration of __U_MULTI_fsubseq_alloca_true_valid_memsafety_true_termination_i__u_int in subseq-alloca_true-valid-memsafety_true-termination.i [2018-03-29 20:46:20,348 INFO L230 ultiparseSymbolTable]: Global variable declaration of __U_MULTI_fsubseq_alloca_true_valid_memsafety_true_termination_i__register_t in subseq-alloca_true-valid-memsafety_true-termination.i [2018-03-29 20:46:20,348 INFO L230 ultiparseSymbolTable]: Global variable declaration of __U_MULTI_fsubseq_alloca_true_valid_memsafety_true_termination_i__u_int64_t in subseq-alloca_true-valid-memsafety_true-termination.i [2018-03-29 20:46:20,349 INFO L230 ultiparseSymbolTable]: Global variable declaration of __U_MULTI_fsubseq_alloca_true_valid_memsafety_true_termination_i____fsfilcnt64_t in subseq-alloca_true-valid-memsafety_true-termination.i [2018-03-29 20:46:20,349 INFO L230 ultiparseSymbolTable]: Global variable declaration of __U_MULTI_fsubseq_alloca_true_valid_memsafety_true_termination_i____fsblkcnt64_t in subseq-alloca_true-valid-memsafety_true-termination.i [2018-03-29 20:46:20,349 INFO L230 ultiparseSymbolTable]: Global variable declaration of __U_MULTI_fsubseq_alloca_true_valid_memsafety_true_termination_i__pthread_mutex_t in subseq-alloca_true-valid-memsafety_true-termination.i [2018-03-29 20:46:20,349 INFO L230 ultiparseSymbolTable]: Global variable declaration of __U_MULTI_fsubseq_alloca_true_valid_memsafety_true_termination_i____fsfilcnt_t in subseq-alloca_true-valid-memsafety_true-termination.i [2018-03-29 20:46:20,349 INFO L230 ultiparseSymbolTable]: Global variable declaration of __U_MULTI_fsubseq_alloca_true_valid_memsafety_true_termination_i__ldiv_t in subseq-alloca_true-valid-memsafety_true-termination.i [2018-03-29 20:46:20,349 INFO L230 ultiparseSymbolTable]: Global variable declaration of __U_MULTI_fsubseq_alloca_true_valid_memsafety_true_termination_i__ino_t in subseq-alloca_true-valid-memsafety_true-termination.i [2018-03-29 20:46:20,349 INFO L230 ultiparseSymbolTable]: Global variable declaration of __U_MULTI_fsubseq_alloca_true_valid_memsafety_true_termination_i____time_t in subseq-alloca_true-valid-memsafety_true-termination.i [2018-03-29 20:46:20,349 INFO L230 ultiparseSymbolTable]: Global variable declaration of __U_MULTI_fsubseq_alloca_true_valid_memsafety_true_termination_i__int8_t in subseq-alloca_true-valid-memsafety_true-termination.i [2018-03-29 20:46:20,350 INFO L230 ultiparseSymbolTable]: Global variable declaration of __U_MULTI_fsubseq_alloca_true_valid_memsafety_true_termination_i____u_char in subseq-alloca_true-valid-memsafety_true-termination.i [2018-03-29 20:46:20,350 INFO L230 ultiparseSymbolTable]: Global variable declaration of __U_MULTI_fsubseq_alloca_true_valid_memsafety_true_termination_i____suseconds_t in subseq-alloca_true-valid-memsafety_true-termination.i [2018-03-29 20:46:20,350 INFO L230 ultiparseSymbolTable]: Global variable declaration of __U_MULTI_fsubseq_alloca_true_valid_memsafety_true_termination_i____caddr_t in subseq-alloca_true-valid-memsafety_true-termination.i [2018-03-29 20:46:20,350 INFO L230 ultiparseSymbolTable]: Global variable declaration of __U_MULTI_fsubseq_alloca_true_valid_memsafety_true_termination_i____dev_t in subseq-alloca_true-valid-memsafety_true-termination.i [2018-03-29 20:46:20,350 INFO L230 ultiparseSymbolTable]: Global variable declaration of __U_MULTI_fsubseq_alloca_true_valid_memsafety_true_termination_i____qaddr_t in subseq-alloca_true-valid-memsafety_true-termination.i [2018-03-29 20:46:20,350 INFO L230 ultiparseSymbolTable]: Global variable declaration of __U_MULTI_fsubseq_alloca_true_valid_memsafety_true_termination_i__int16_t in subseq-alloca_true-valid-memsafety_true-termination.i [2018-03-29 20:46:20,350 INFO L230 ultiparseSymbolTable]: Global variable declaration of __U_MULTI_fsubseq_alloca_true_valid_memsafety_true_termination_i__lldiv_t in subseq-alloca_true-valid-memsafety_true-termination.i [2018-03-29 20:46:20,350 INFO L230 ultiparseSymbolTable]: Global variable declaration of __U_MULTI_fsubseq_alloca_true_valid_memsafety_true_termination_i__wchar_t in subseq-alloca_true-valid-memsafety_true-termination.i [2018-03-29 20:46:20,351 INFO L230 ultiparseSymbolTable]: Global variable declaration of __U_MULTI_fsubseq_alloca_true_valid_memsafety_true_termination_i____blksize_t in subseq-alloca_true-valid-memsafety_true-termination.i [2018-03-29 20:46:20,351 INFO L230 ultiparseSymbolTable]: Global variable declaration of __U_MULTI_fsubseq_alloca_true_valid_memsafety_true_termination_i__blksize_t in subseq-alloca_true-valid-memsafety_true-termination.i [2018-03-29 20:46:20,351 INFO L230 ultiparseSymbolTable]: Global variable declaration of __U_MULTI_fsubseq_alloca_true_valid_memsafety_true_termination_i__pthread_attr_t in subseq-alloca_true-valid-memsafety_true-termination.i [2018-03-29 20:46:20,351 INFO L230 ultiparseSymbolTable]: Global variable declaration of __U_MULTI_fsubseq_alloca_true_valid_memsafety_true_termination_i__uid_t in subseq-alloca_true-valid-memsafety_true-termination.i [2018-03-29 20:46:20,351 INFO L230 ultiparseSymbolTable]: Global variable declaration of __U_MULTI_fsubseq_alloca_true_valid_memsafety_true_termination_i____uint32_t in subseq-alloca_true-valid-memsafety_true-termination.i [2018-03-29 20:46:20,351 INFO L230 ultiparseSymbolTable]: Global variable declaration of __U_MULTI_fsubseq_alloca_true_valid_memsafety_true_termination_i__pthread_condattr_t in subseq-alloca_true-valid-memsafety_true-termination.i [2018-03-29 20:46:20,351 INFO L230 ultiparseSymbolTable]: Global variable declaration of __U_MULTI_fsubseq_alloca_true_valid_memsafety_true_termination_i__pthread_once_t in subseq-alloca_true-valid-memsafety_true-termination.i [2018-03-29 20:46:20,352 INFO L230 ultiparseSymbolTable]: Global variable declaration of __U_MULTI_fsubseq_alloca_true_valid_memsafety_true_termination_i__blkcnt_t in subseq-alloca_true-valid-memsafety_true-termination.i [2018-03-29 20:46:20,352 INFO L230 ultiparseSymbolTable]: Global variable declaration of __U_MULTI_fsubseq_alloca_true_valid_memsafety_true_termination_i____int8_t in subseq-alloca_true-valid-memsafety_true-termination.i [2018-03-29 20:46:20,352 INFO L230 ultiparseSymbolTable]: Global variable declaration of __U_MULTI_fsubseq_alloca_true_valid_memsafety_true_termination_i__u_char in subseq-alloca_true-valid-memsafety_true-termination.i [2018-03-29 20:46:20,352 INFO L230 ultiparseSymbolTable]: Global variable declaration of __U_MULTI_fsubseq_alloca_true_valid_memsafety_true_termination_i____u_long in subseq-alloca_true-valid-memsafety_true-termination.i [2018-03-29 20:46:20,352 INFO L230 ultiparseSymbolTable]: Global variable declaration of __U_MULTI_fsubseq_alloca_true_valid_memsafety_true_termination_i____int16_t in subseq-alloca_true-valid-memsafety_true-termination.i [2018-03-29 20:46:20,352 INFO L230 ultiparseSymbolTable]: Global variable declaration of __U_MULTI_fsubseq_alloca_true_valid_memsafety_true_termination_i__div_t in subseq-alloca_true-valid-memsafety_true-termination.i [2018-03-29 20:46:20,352 INFO L230 ultiparseSymbolTable]: Global variable declaration of __U_MULTI_fsubseq_alloca_true_valid_memsafety_true_termination_i__caddr_t in subseq-alloca_true-valid-memsafety_true-termination.i [2018-03-29 20:46:20,352 INFO L230 ultiparseSymbolTable]: Global variable declaration of __U_MULTI_fsubseq_alloca_true_valid_memsafety_true_termination_i__pthread_spinlock_t in subseq-alloca_true-valid-memsafety_true-termination.i [2018-03-29 20:46:20,352 INFO L230 ultiparseSymbolTable]: Global variable declaration of __U_MULTI_fsubseq_alloca_true_valid_memsafety_true_termination_i__mode_t in subseq-alloca_true-valid-memsafety_true-termination.i [2018-03-29 20:46:20,353 INFO L230 ultiparseSymbolTable]: Global variable declaration of __U_MULTI_fsubseq_alloca_true_valid_memsafety_true_termination_i__pid_t in subseq-alloca_true-valid-memsafety_true-termination.i [2018-03-29 20:46:20,353 INFO L230 ultiparseSymbolTable]: Global variable declaration of __U_MULTI_fsubseq_alloca_true_valid_memsafety_true_termination_i__fd_set in subseq-alloca_true-valid-memsafety_true-termination.i [2018-03-29 20:46:20,353 INFO L230 ultiparseSymbolTable]: Global variable declaration of __U_MULTI_fsubseq_alloca_true_valid_memsafety_true_termination_i____sigset_t in subseq-alloca_true-valid-memsafety_true-termination.i [2018-03-29 20:46:20,353 INFO L230 ultiparseSymbolTable]: Global variable declaration of __U_MULTI_fsubseq_alloca_true_valid_memsafety_true_termination_i__gid_t in subseq-alloca_true-valid-memsafety_true-termination.i [2018-03-29 20:46:20,353 INFO L230 ultiparseSymbolTable]: Global variable declaration of __U_MULTI_fsubseq_alloca_true_valid_memsafety_true_termination_i__u_short in subseq-alloca_true-valid-memsafety_true-termination.i [2018-03-29 20:46:20,353 INFO L230 ultiparseSymbolTable]: Global variable declaration of __U_MULTI_fsubseq_alloca_true_valid_memsafety_true_termination_i__ulong in subseq-alloca_true-valid-memsafety_true-termination.i [2018-03-29 20:46:20,353 INFO L230 ultiparseSymbolTable]: Global variable declaration of __U_MULTI_fsubseq_alloca_true_valid_memsafety_true_termination_i____fsid_t in subseq-alloca_true-valid-memsafety_true-termination.i [2018-03-29 20:46:20,353 INFO L230 ultiparseSymbolTable]: Global variable declaration of __U_MULTI_fsubseq_alloca_true_valid_memsafety_true_termination_i__u_long in subseq-alloca_true-valid-memsafety_true-termination.i [2018-03-29 20:46:20,353 INFO L230 ultiparseSymbolTable]: Global variable declaration of __U_MULTI_fsubseq_alloca_true_valid_memsafety_true_termination_i____ino_t in subseq-alloca_true-valid-memsafety_true-termination.i [2018-03-29 20:46:20,353 INFO L230 ultiparseSymbolTable]: Global variable declaration of __U_MULTI_fsubseq_alloca_true_valid_memsafety_true_termination_i____ino64_t in subseq-alloca_true-valid-memsafety_true-termination.i [2018-03-29 20:46:20,353 INFO L230 ultiparseSymbolTable]: Global variable declaration of __U_MULTI_fsubseq_alloca_true_valid_memsafety_true_termination_i____u_quad_t in subseq-alloca_true-valid-memsafety_true-termination.i [2018-03-29 20:46:20,353 INFO L230 ultiparseSymbolTable]: Global variable declaration of __U_MULTI_fsubseq_alloca_true_valid_memsafety_true_termination_i____pid_t in subseq-alloca_true-valid-memsafety_true-termination.i [2018-03-29 20:46:20,353 INFO L230 ultiparseSymbolTable]: Global variable declaration of __U_MULTI_fsubseq_alloca_true_valid_memsafety_true_termination_i____syscall_slong_t in subseq-alloca_true-valid-memsafety_true-termination.i [2018-03-29 20:46:20,353 INFO L230 ultiparseSymbolTable]: Global variable declaration of __U_MULTI_fsubseq_alloca_true_valid_memsafety_true_termination_i__pthread_barrier_t in subseq-alloca_true-valid-memsafety_true-termination.i [2018-03-29 20:46:20,353 INFO L230 ultiparseSymbolTable]: Global variable declaration of __U_MULTI_fsubseq_alloca_true_valid_memsafety_true_termination_i____off_t in subseq-alloca_true-valid-memsafety_true-termination.i [2018-03-29 20:46:20,354 INFO L230 ultiparseSymbolTable]: Global variable declaration of __U_MULTI_fsubseq_alloca_true_valid_memsafety_true_termination_i____WAIT_STATUS in subseq-alloca_true-valid-memsafety_true-termination.i [2018-03-29 20:46:20,354 INFO L230 ultiparseSymbolTable]: Global variable declaration of __U_MULTI_fsubseq_alloca_true_valid_memsafety_true_termination_i____gid_t in subseq-alloca_true-valid-memsafety_true-termination.i [2018-03-29 20:46:20,354 INFO L230 ultiparseSymbolTable]: Global variable declaration of __U_MULTI_fsubseq_alloca_true_valid_memsafety_true_termination_i__clock_t in subseq-alloca_true-valid-memsafety_true-termination.i [2018-03-29 20:46:20,354 INFO L230 ultiparseSymbolTable]: Global variable declaration of __U_MULTI_fsubseq_alloca_true_valid_memsafety_true_termination_i____uint16_t in subseq-alloca_true-valid-memsafety_true-termination.i [2018-03-29 20:46:20,354 INFO L230 ultiparseSymbolTable]: Global variable declaration of __U_MULTI_fsubseq_alloca_true_valid_memsafety_true_termination_i____loff_t in subseq-alloca_true-valid-memsafety_true-termination.i [2018-03-29 20:46:20,354 INFO L230 ultiparseSymbolTable]: Global variable declaration of __U_MULTI_fsubseq_alloca_true_valid_memsafety_true_termination_i__suseconds_t in subseq-alloca_true-valid-memsafety_true-termination.i [2018-03-29 20:46:20,354 INFO L230 ultiparseSymbolTable]: Global variable declaration of __U_MULTI_fsubseq_alloca_true_valid_memsafety_true_termination_i____blkcnt_t in subseq-alloca_true-valid-memsafety_true-termination.i [2018-03-29 20:46:20,354 INFO L230 ultiparseSymbolTable]: Global variable declaration of __U_MULTI_fsubseq_alloca_true_valid_memsafety_true_termination_i__quad_t in subseq-alloca_true-valid-memsafety_true-termination.i [2018-03-29 20:46:20,354 INFO L230 ultiparseSymbolTable]: Global variable declaration of __U_MULTI_fsubseq_alloca_true_valid_memsafety_true_termination_i__u_int16_t in subseq-alloca_true-valid-memsafety_true-termination.i [2018-03-29 20:46:20,354 INFO L230 ultiparseSymbolTable]: Global variable declaration of __U_MULTI_fsubseq_alloca_true_valid_memsafety_true_termination_i__pthread_cond_t in subseq-alloca_true-valid-memsafety_true-termination.i [2018-03-29 20:46:20,354 INFO L230 ultiparseSymbolTable]: Global variable declaration of __U_MULTI_fsubseq_alloca_true_valid_memsafety_true_termination_i__daddr_t in subseq-alloca_true-valid-memsafety_true-termination.i [2018-03-29 20:46:20,354 INFO L230 ultiparseSymbolTable]: Global variable declaration of __U_MULTI_fsubseq_alloca_true_valid_memsafety_true_termination_i__fsid_t in subseq-alloca_true-valid-memsafety_true-termination.i [2018-03-29 20:46:20,354 INFO L230 ultiparseSymbolTable]: Global variable declaration of __U_MULTI_fsubseq_alloca_true_valid_memsafety_true_termination_i____key_t in subseq-alloca_true-valid-memsafety_true-termination.i [2018-03-29 20:46:20,354 INFO L230 ultiparseSymbolTable]: Global variable declaration of __U_MULTI_fsubseq_alloca_true_valid_memsafety_true_termination_i____clockid_t in subseq-alloca_true-valid-memsafety_true-termination.i [2018-03-29 20:46:20,354 INFO L230 ultiparseSymbolTable]: Global variable declaration of __U_MULTI_fsubseq_alloca_true_valid_memsafety_true_termination_i____daddr_t in subseq-alloca_true-valid-memsafety_true-termination.i [2018-03-29 20:46:20,355 INFO L230 ultiparseSymbolTable]: Global variable declaration of __U_MULTI_fsubseq_alloca_true_valid_memsafety_true_termination_i____clock_t in subseq-alloca_true-valid-memsafety_true-termination.i [2018-03-29 20:46:20,355 INFO L230 ultiparseSymbolTable]: Global variable declaration of __U_MULTI_fsubseq_alloca_true_valid_memsafety_true_termination_i____pthread_list_t in subseq-alloca_true-valid-memsafety_true-termination.i [2018-03-29 20:46:20,355 INFO L230 ultiparseSymbolTable]: Global variable declaration of __U_MULTI_fsubseq_alloca_true_valid_memsafety_true_termination_i__pthread_barrierattr_t in subseq-alloca_true-valid-memsafety_true-termination.i [2018-03-29 20:46:20,355 INFO L230 ultiparseSymbolTable]: Global variable declaration of __U_MULTI_fsubseq_alloca_true_valid_memsafety_true_termination_i____useconds_t in subseq-alloca_true-valid-memsafety_true-termination.i [2018-03-29 20:46:20,355 INFO L230 ultiparseSymbolTable]: Global variable declaration of __U_MULTI_fsubseq_alloca_true_valid_memsafety_true_termination_i__int64_t in subseq-alloca_true-valid-memsafety_true-termination.i [2018-03-29 20:46:20,355 INFO L230 ultiparseSymbolTable]: Global variable declaration of __U_MULTI_fsubseq_alloca_true_valid_memsafety_true_termination_i____quad_t in subseq-alloca_true-valid-memsafety_true-termination.i [2018-03-29 20:46:20,355 INFO L230 ultiparseSymbolTable]: Global variable declaration of __U_MULTI_fsubseq_alloca_true_valid_memsafety_true_termination_i__u_quad_t in subseq-alloca_true-valid-memsafety_true-termination.i [2018-03-29 20:46:20,355 INFO L230 ultiparseSymbolTable]: Global variable declaration of __U_MULTI_fsubseq_alloca_true_valid_memsafety_true_termination_i__ushort in subseq-alloca_true-valid-memsafety_true-termination.i [2018-03-29 20:46:20,355 INFO L230 ultiparseSymbolTable]: Global variable declaration of __U_MULTI_fsubseq_alloca_true_valid_memsafety_true_termination_i____uint8_t in subseq-alloca_true-valid-memsafety_true-termination.i [2018-03-29 20:46:20,356 INFO L230 ultiparseSymbolTable]: Global variable declaration of __U_MULTI_fsubseq_alloca_true_valid_memsafety_true_termination_i____off64_t in subseq-alloca_true-valid-memsafety_true-termination.i [2018-03-29 20:46:20,356 INFO L230 ultiparseSymbolTable]: Global variable declaration of __U_MULTI_fsubseq_alloca_true_valid_memsafety_true_termination_i__loff_t in subseq-alloca_true-valid-memsafety_true-termination.i [2018-03-29 20:46:20,356 INFO L230 ultiparseSymbolTable]: Global variable declaration of __U_MULTI_fsubseq_alloca_true_valid_memsafety_true_termination_i____int64_t in subseq-alloca_true-valid-memsafety_true-termination.i [2018-03-29 20:46:20,356 INFO L230 ultiparseSymbolTable]: Global variable declaration of __U_MULTI_fsubseq_alloca_true_valid_memsafety_true_termination_i____fsblkcnt_t in subseq-alloca_true-valid-memsafety_true-termination.i [2018-03-29 20:46:20,356 INFO L230 ultiparseSymbolTable]: Global variable declaration of __U_MULTI_fsubseq_alloca_true_valid_memsafety_true_termination_i____syscall_ulong_t in subseq-alloca_true-valid-memsafety_true-termination.i [2018-03-29 20:46:20,356 INFO L230 ultiparseSymbolTable]: Global variable declaration of __U_MULTI_fsubseq_alloca_true_valid_memsafety_true_termination_i____sig_atomic_t in subseq-alloca_true-valid-memsafety_true-termination.i [2018-03-29 20:46:20,356 INFO L230 ultiparseSymbolTable]: Global variable declaration of __U_MULTI_fsubseq_alloca_true_valid_memsafety_true_termination_i__u_int32_t in subseq-alloca_true-valid-memsafety_true-termination.i [2018-03-29 20:46:20,356 INFO L230 ultiparseSymbolTable]: Global variable declaration of __U_MULTI_fsubseq_alloca_true_valid_memsafety_true_termination_i____id_t in subseq-alloca_true-valid-memsafety_true-termination.i [2018-03-29 20:46:20,356 INFO L230 ultiparseSymbolTable]: Global variable declaration of __U_MULTI_fsubseq_alloca_true_valid_memsafety_true_termination_i____fd_mask in subseq-alloca_true-valid-memsafety_true-termination.i [2018-03-29 20:46:20,356 INFO L230 ultiparseSymbolTable]: Global variable declaration of __U_MULTI_fsubseq_alloca_true_valid_memsafety_true_termination_i____u_int in subseq-alloca_true-valid-memsafety_true-termination.i [2018-03-29 20:46:20,357 INFO L230 ultiparseSymbolTable]: Global variable declaration of __U_MULTI_fsubseq_alloca_true_valid_memsafety_true_termination_i__pthread_t in subseq-alloca_true-valid-memsafety_true-termination.i [2018-03-29 20:46:20,357 INFO L230 ultiparseSymbolTable]: Global variable declaration of __U_MULTI_fsubseq_alloca_true_valid_memsafety_true_termination_i__u_int8_t in subseq-alloca_true-valid-memsafety_true-termination.i [2018-03-29 20:46:20,357 INFO L230 ultiparseSymbolTable]: Global variable declaration of __U_MULTI_fsubseq_alloca_true_valid_memsafety_true_termination_i__time_t in subseq-alloca_true-valid-memsafety_true-termination.i [2018-03-29 20:46:20,357 INFO L230 ultiparseSymbolTable]: Global variable declaration of __U_MULTI_fsubseq_alloca_true_valid_memsafety_true_termination_i__pthread_key_t in subseq-alloca_true-valid-memsafety_true-termination.i [2018-03-29 20:46:20,357 INFO L230 ultiparseSymbolTable]: Global variable declaration of __U_MULTI_fsubseq_alloca_true_valid_memsafety_true_termination_i__pthread_rwlock_t in subseq-alloca_true-valid-memsafety_true-termination.i [2018-03-29 20:46:20,357 INFO L230 ultiparseSymbolTable]: Global variable declaration of __U_MULTI_fsubseq_alloca_true_valid_memsafety_true_termination_i____nlink_t in subseq-alloca_true-valid-memsafety_true-termination.i [2018-03-29 20:46:20,357 INFO L230 ultiparseSymbolTable]: Global variable declaration of __U_MULTI_fsubseq_alloca_true_valid_memsafety_true_termination_i__clockid_t in subseq-alloca_true-valid-memsafety_true-termination.i [2018-03-29 20:46:20,357 INFO L230 ultiparseSymbolTable]: Global variable declaration of __U_MULTI_fsubseq_alloca_true_valid_memsafety_true_termination_i__timer_t in subseq-alloca_true-valid-memsafety_true-termination.i [2018-03-29 20:46:20,358 INFO L230 ultiparseSymbolTable]: Global variable declaration of __U_MULTI_fsubseq_alloca_true_valid_memsafety_true_termination_i__dev_t in subseq-alloca_true-valid-memsafety_true-termination.i [2018-03-29 20:46:20,358 INFO L230 ultiparseSymbolTable]: Global variable declaration of __U_MULTI_fsubseq_alloca_true_valid_memsafety_true_termination_i__sigset_t in subseq-alloca_true-valid-memsafety_true-termination.i [2018-03-29 20:46:20,358 INFO L230 ultiparseSymbolTable]: Global variable declaration of __U_MULTI_fsubseq_alloca_true_valid_memsafety_true_termination_i__id_t in subseq-alloca_true-valid-memsafety_true-termination.i [2018-03-29 20:46:20,358 INFO L230 ultiparseSymbolTable]: Global variable declaration of __U_MULTI_fsubseq_alloca_true_valid_memsafety_true_termination_i____uint64_t in subseq-alloca_true-valid-memsafety_true-termination.i [2018-03-29 20:46:20,358 INFO L230 ultiparseSymbolTable]: Global variable declaration of __U_MULTI_fsubseq_alloca_true_valid_memsafety_true_termination_i__fd_mask in subseq-alloca_true-valid-memsafety_true-termination.i [2018-03-29 20:46:20,358 INFO L230 ultiparseSymbolTable]: Global variable declaration of __U_MULTI_fsubseq_alloca_true_valid_memsafety_true_termination_i____blkcnt64_t in subseq-alloca_true-valid-memsafety_true-termination.i [2018-03-29 20:46:20,358 INFO L230 ultiparseSymbolTable]: Global variable declaration of __U_MULTI_fsubseq_alloca_true_valid_memsafety_true_termination_i____fsword_t in subseq-alloca_true-valid-memsafety_true-termination.i [2018-03-29 20:46:20,358 INFO L230 ultiparseSymbolTable]: Global variable declaration of __U_MULTI_fsubseq_alloca_true_valid_memsafety_true_termination_i__pthread_rwlockattr_t in subseq-alloca_true-valid-memsafety_true-termination.i [2018-03-29 20:46:20,358 INFO L230 ultiparseSymbolTable]: Global variable declaration of __U_MULTI_fsubseq_alloca_true_valid_memsafety_true_termination_i__ssize_t in subseq-alloca_true-valid-memsafety_true-termination.i [2018-03-29 20:46:20,359 INFO L230 ultiparseSymbolTable]: Global variable declaration of __U_MULTI_fsubseq_alloca_true_valid_memsafety_true_termination_i____uid_t in subseq-alloca_true-valid-memsafety_true-termination.i [2018-03-29 20:46:20,359 INFO L230 ultiparseSymbolTable]: Global variable declaration of __U_MULTI_fsubseq_alloca_true_valid_memsafety_true_termination_i__nlink_t in subseq-alloca_true-valid-memsafety_true-termination.i [2018-03-29 20:46:20,359 INFO L230 ultiparseSymbolTable]: Global variable declaration of __U_MULTI_fsubseq_alloca_true_valid_memsafety_true_termination_i__uint in subseq-alloca_true-valid-memsafety_true-termination.i [2018-03-29 20:46:20,376 INFO L330 CDTParser]: Deleted temporary CDT project at /storage/ultimate/releaseScripts/default/UAutomizer-linux/data/FLAG0b603362a [2018-03-29 20:46:20,381 INFO L304 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2018-03-29 20:46:20,384 INFO L131 ToolchainWalker]: Walking toolchain with 4 elements. [2018-03-29 20:46:20,386 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2018-03-29 20:46:20,386 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2018-03-29 20:46:20,393 INFO L276 PluginConnector]: CACSL2BoogieTranslator initialized [2018-03-29 20:46:20,394 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 29.03 08:46:20" (1/1) ... [2018-03-29 20:46:20,397 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@2a6af002 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.03 08:46:20, skipping insertion in model container [2018-03-29 20:46:20,398 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 29.03 08:46:20" (1/1) ... [2018-03-29 20:46:20,418 INFO L167 Dispatcher]: Using SV-COMP mode [2018-03-29 20:46:20,449 INFO L167 Dispatcher]: Using SV-COMP mode [2018-03-29 20:46:20,628 INFO L175 PostProcessor]: Settings: Checked method=main [2018-03-29 20:46:20,675 INFO L175 PostProcessor]: Settings: Checked method=main [2018-03-29 20:46:20,682 INFO L100 SccComputation]: Graph consists of 0 InCaSumBalls and 112 non ball SCCs. Number of states in SCCs 112. [2018-03-29 20:46:20,728 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.03 08:46:20 WrapperNode [2018-03-29 20:46:20,728 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2018-03-29 20:46:20,729 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2018-03-29 20:46:20,729 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2018-03-29 20:46:20,729 INFO L276 PluginConnector]: Boogie Preprocessor initialized [2018-03-29 20:46:20,739 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.03 08:46:20" (1/1) ... [2018-03-29 20:46:20,739 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.03 08:46:20" (1/1) ... [2018-03-29 20:46:20,755 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.03 08:46:20" (1/1) ... [2018-03-29 20:46:20,755 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.03 08:46:20" (1/1) ... [2018-03-29 20:46:20,767 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.03 08:46:20" (1/1) ... [2018-03-29 20:46:20,773 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.03 08:46:20" (1/1) ... [2018-03-29 20:46:20,776 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.03 08:46:20" (1/1) ... [2018-03-29 20:46:20,781 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2018-03-29 20:46:20,781 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2018-03-29 20:46:20,782 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2018-03-29 20:46:20,782 INFO L276 PluginConnector]: RCFGBuilder initialized [2018-03-29 20:46:20,783 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.03 08:46:20" (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 20:46:20,908 INFO L136 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2018-03-29 20:46:20,908 INFO L136 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2018-03-29 20:46:20,908 INFO L136 BoogieDeclarations]: Found implementation of procedure __U_MULTI_fsubseq_alloca_true_valid_memsafety_true_termination_i____bswap_32 [2018-03-29 20:46:20,908 INFO L136 BoogieDeclarations]: Found implementation of procedure __U_MULTI_fsubseq_alloca_true_valid_memsafety_true_termination_i____bswap_64 [2018-03-29 20:46:20,909 INFO L136 BoogieDeclarations]: Found implementation of procedure subseq [2018-03-29 20:46:20,909 INFO L136 BoogieDeclarations]: Found implementation of procedure main [2018-03-29 20:46:20,909 INFO L128 BoogieDeclarations]: Found specification of procedure __U_MULTI_fsubseq_alloca_true_valid_memsafety_true_termination_i____bswap_32 [2018-03-29 20:46:20,909 INFO L128 BoogieDeclarations]: Found specification of procedure __U_MULTI_fsubseq_alloca_true_valid_memsafety_true_termination_i____bswap_64 [2018-03-29 20:46:20,909 INFO L128 BoogieDeclarations]: Found specification of procedure __ctype_get_mb_cur_max [2018-03-29 20:46:20,909 INFO L128 BoogieDeclarations]: Found specification of procedure atof [2018-03-29 20:46:20,909 INFO L128 BoogieDeclarations]: Found specification of procedure atoi [2018-03-29 20:46:20,909 INFO L128 BoogieDeclarations]: Found specification of procedure atol [2018-03-29 20:46:20,909 INFO L128 BoogieDeclarations]: Found specification of procedure atoll [2018-03-29 20:46:20,910 INFO L128 BoogieDeclarations]: Found specification of procedure strtod [2018-03-29 20:46:20,910 INFO L128 BoogieDeclarations]: Found specification of procedure strtof [2018-03-29 20:46:20,910 INFO L128 BoogieDeclarations]: Found specification of procedure strtold [2018-03-29 20:46:20,910 INFO L128 BoogieDeclarations]: Found specification of procedure strtol [2018-03-29 20:46:20,910 INFO L128 BoogieDeclarations]: Found specification of procedure strtoul [2018-03-29 20:46:20,910 INFO L128 BoogieDeclarations]: Found specification of procedure strtoq [2018-03-29 20:46:20,910 INFO L128 BoogieDeclarations]: Found specification of procedure strtouq [2018-03-29 20:46:20,910 INFO L128 BoogieDeclarations]: Found specification of procedure strtoll [2018-03-29 20:46:20,910 INFO L128 BoogieDeclarations]: Found specification of procedure strtoull [2018-03-29 20:46:20,910 INFO L128 BoogieDeclarations]: Found specification of procedure l64a [2018-03-29 20:46:20,911 INFO L128 BoogieDeclarations]: Found specification of procedure a64l [2018-03-29 20:46:20,911 INFO L128 BoogieDeclarations]: Found specification of procedure select [2018-03-29 20:46:20,911 INFO L128 BoogieDeclarations]: Found specification of procedure pselect [2018-03-29 20:46:20,911 INFO L128 BoogieDeclarations]: Found specification of procedure gnu_dev_major [2018-03-29 20:46:20,911 INFO L128 BoogieDeclarations]: Found specification of procedure gnu_dev_minor [2018-03-29 20:46:20,911 INFO L128 BoogieDeclarations]: Found specification of procedure gnu_dev_makedev [2018-03-29 20:46:20,911 INFO L128 BoogieDeclarations]: Found specification of procedure random [2018-03-29 20:46:20,911 INFO L128 BoogieDeclarations]: Found specification of procedure srandom [2018-03-29 20:46:20,911 INFO L128 BoogieDeclarations]: Found specification of procedure initstate [2018-03-29 20:46:20,911 INFO L128 BoogieDeclarations]: Found specification of procedure setstate [2018-03-29 20:46:20,911 INFO L128 BoogieDeclarations]: Found specification of procedure random_r [2018-03-29 20:46:20,911 INFO L128 BoogieDeclarations]: Found specification of procedure srandom_r [2018-03-29 20:46:20,912 INFO L128 BoogieDeclarations]: Found specification of procedure initstate_r [2018-03-29 20:46:20,912 INFO L128 BoogieDeclarations]: Found specification of procedure setstate_r [2018-03-29 20:46:20,912 INFO L128 BoogieDeclarations]: Found specification of procedure rand [2018-03-29 20:46:20,912 INFO L128 BoogieDeclarations]: Found specification of procedure srand [2018-03-29 20:46:20,912 INFO L128 BoogieDeclarations]: Found specification of procedure rand_r [2018-03-29 20:46:20,912 INFO L128 BoogieDeclarations]: Found specification of procedure drand48 [2018-03-29 20:46:20,912 INFO L128 BoogieDeclarations]: Found specification of procedure erand48 [2018-03-29 20:46:20,912 INFO L128 BoogieDeclarations]: Found specification of procedure lrand48 [2018-03-29 20:46:20,912 INFO L128 BoogieDeclarations]: Found specification of procedure nrand48 [2018-03-29 20:46:20,912 INFO L128 BoogieDeclarations]: Found specification of procedure mrand48 [2018-03-29 20:46:20,912 INFO L128 BoogieDeclarations]: Found specification of procedure jrand48 [2018-03-29 20:46:20,912 INFO L128 BoogieDeclarations]: Found specification of procedure srand48 [2018-03-29 20:46:20,912 INFO L128 BoogieDeclarations]: Found specification of procedure seed48 [2018-03-29 20:46:20,913 INFO L128 BoogieDeclarations]: Found specification of procedure lcong48 [2018-03-29 20:46:20,913 INFO L128 BoogieDeclarations]: Found specification of procedure drand48_r [2018-03-29 20:46:20,913 INFO L128 BoogieDeclarations]: Found specification of procedure erand48_r [2018-03-29 20:46:20,913 INFO L128 BoogieDeclarations]: Found specification of procedure lrand48_r [2018-03-29 20:46:20,913 INFO L128 BoogieDeclarations]: Found specification of procedure nrand48_r [2018-03-29 20:46:20,913 INFO L128 BoogieDeclarations]: Found specification of procedure mrand48_r [2018-03-29 20:46:20,913 INFO L128 BoogieDeclarations]: Found specification of procedure jrand48_r [2018-03-29 20:46:20,913 INFO L128 BoogieDeclarations]: Found specification of procedure srand48_r [2018-03-29 20:46:20,913 INFO L128 BoogieDeclarations]: Found specification of procedure seed48_r [2018-03-29 20:46:20,913 INFO L128 BoogieDeclarations]: Found specification of procedure lcong48_r [2018-03-29 20:46:20,913 INFO L128 BoogieDeclarations]: Found specification of procedure malloc [2018-03-29 20:46:20,913 INFO L128 BoogieDeclarations]: Found specification of procedure calloc [2018-03-29 20:46:20,914 INFO L128 BoogieDeclarations]: Found specification of procedure realloc [2018-03-29 20:46:20,914 INFO L128 BoogieDeclarations]: Found specification of procedure free [2018-03-29 20:46:20,914 INFO L128 BoogieDeclarations]: Found specification of procedure cfree [2018-03-29 20:46:20,914 INFO L128 BoogieDeclarations]: Found specification of procedure alloca [2018-03-29 20:46:20,914 INFO L128 BoogieDeclarations]: Found specification of procedure valloc [2018-03-29 20:46:20,914 INFO L128 BoogieDeclarations]: Found specification of procedure posix_memalign [2018-03-29 20:46:20,914 INFO L128 BoogieDeclarations]: Found specification of procedure abort [2018-03-29 20:46:20,914 INFO L128 BoogieDeclarations]: Found specification of procedure atexit [2018-03-29 20:46:20,914 INFO L128 BoogieDeclarations]: Found specification of procedure on_exit [2018-03-29 20:46:20,915 INFO L128 BoogieDeclarations]: Found specification of procedure exit [2018-03-29 20:46:20,915 INFO L128 BoogieDeclarations]: Found specification of procedure _Exit [2018-03-29 20:46:20,915 INFO L128 BoogieDeclarations]: Found specification of procedure getenv [2018-03-29 20:46:20,915 INFO L128 BoogieDeclarations]: Found specification of procedure putenv [2018-03-29 20:46:20,915 INFO L128 BoogieDeclarations]: Found specification of procedure setenv [2018-03-29 20:46:20,915 INFO L128 BoogieDeclarations]: Found specification of procedure unsetenv [2018-03-29 20:46:20,915 INFO L128 BoogieDeclarations]: Found specification of procedure clearenv [2018-03-29 20:46:20,915 INFO L128 BoogieDeclarations]: Found specification of procedure mktemp [2018-03-29 20:46:20,916 INFO L128 BoogieDeclarations]: Found specification of procedure mkstemp [2018-03-29 20:46:20,916 INFO L128 BoogieDeclarations]: Found specification of procedure mkstemps [2018-03-29 20:46:20,916 INFO L128 BoogieDeclarations]: Found specification of procedure mkdtemp [2018-03-29 20:46:20,916 INFO L128 BoogieDeclarations]: Found specification of procedure system [2018-03-29 20:46:20,916 INFO L128 BoogieDeclarations]: Found specification of procedure realpath [2018-03-29 20:46:20,916 INFO L128 BoogieDeclarations]: Found specification of procedure bsearch [2018-03-29 20:46:20,916 INFO L128 BoogieDeclarations]: Found specification of procedure qsort [2018-03-29 20:46:20,916 INFO L128 BoogieDeclarations]: Found specification of procedure abs [2018-03-29 20:46:20,917 INFO L128 BoogieDeclarations]: Found specification of procedure labs [2018-03-29 20:46:20,917 INFO L128 BoogieDeclarations]: Found specification of procedure llabs [2018-03-29 20:46:20,917 INFO L128 BoogieDeclarations]: Found specification of procedure div [2018-03-29 20:46:20,917 INFO L128 BoogieDeclarations]: Found specification of procedure ldiv [2018-03-29 20:46:20,917 INFO L128 BoogieDeclarations]: Found specification of procedure lldiv [2018-03-29 20:46:20,917 INFO L128 BoogieDeclarations]: Found specification of procedure ecvt [2018-03-29 20:46:20,917 INFO L128 BoogieDeclarations]: Found specification of procedure fcvt [2018-03-29 20:46:20,917 INFO L128 BoogieDeclarations]: Found specification of procedure gcvt [2018-03-29 20:46:20,918 INFO L128 BoogieDeclarations]: Found specification of procedure qecvt [2018-03-29 20:46:20,918 INFO L128 BoogieDeclarations]: Found specification of procedure qfcvt [2018-03-29 20:46:20,918 INFO L128 BoogieDeclarations]: Found specification of procedure qgcvt [2018-03-29 20:46:20,918 INFO L128 BoogieDeclarations]: Found specification of procedure ecvt_r [2018-03-29 20:46:20,918 INFO L128 BoogieDeclarations]: Found specification of procedure fcvt_r [2018-03-29 20:46:20,918 INFO L128 BoogieDeclarations]: Found specification of procedure qecvt_r [2018-03-29 20:46:20,918 INFO L128 BoogieDeclarations]: Found specification of procedure qfcvt_r [2018-03-29 20:46:20,919 INFO L128 BoogieDeclarations]: Found specification of procedure mblen [2018-03-29 20:46:20,919 INFO L128 BoogieDeclarations]: Found specification of procedure mbtowc [2018-03-29 20:46:20,919 INFO L128 BoogieDeclarations]: Found specification of procedure wctomb [2018-03-29 20:46:20,919 INFO L128 BoogieDeclarations]: Found specification of procedure mbstowcs [2018-03-29 20:46:20,919 INFO L128 BoogieDeclarations]: Found specification of procedure wcstombs [2018-03-29 20:46:20,919 INFO L128 BoogieDeclarations]: Found specification of procedure rpmatch [2018-03-29 20:46:20,919 INFO L128 BoogieDeclarations]: Found specification of procedure getsubopt [2018-03-29 20:46:20,919 INFO L128 BoogieDeclarations]: Found specification of procedure getloadavg [2018-03-29 20:46:20,919 INFO L128 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_int [2018-03-29 20:46:20,920 INFO L128 BoogieDeclarations]: Found specification of procedure subseq [2018-03-29 20:46:20,920 INFO L128 BoogieDeclarations]: Found specification of procedure read~int [2018-03-29 20:46:20,920 INFO L128 BoogieDeclarations]: Found specification of procedure main [2018-03-29 20:46:20,920 INFO L128 BoogieDeclarations]: Found specification of procedure #Ultimate.alloc [2018-03-29 20:46:20,920 INFO L128 BoogieDeclarations]: Found specification of procedure write~int [2018-03-29 20:46:20,920 INFO L128 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2018-03-29 20:46:20,920 INFO L128 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2018-03-29 20:46:20,920 INFO L128 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2018-03-29 20:46:20,921 INFO L128 BoogieDeclarations]: Found specification of procedure write~unchecked~int [2018-03-29 20:46:21,367 INFO L259 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2018-03-29 20:46:21,368 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 29.03 08:46:21 BoogieIcfgContainer [2018-03-29 20:46:21,368 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2018-03-29 20:46:21,369 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2018-03-29 20:46:21,369 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2018-03-29 20:46:21,372 INFO L276 PluginConnector]: TraceAbstraction initialized [2018-03-29 20:46:21,373 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 29.03 08:46:20" (1/3) ... [2018-03-29 20:46:21,373 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@7e0250a9 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 29.03 08:46:21, skipping insertion in model container [2018-03-29 20:46:21,374 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.03 08:46:20" (2/3) ... [2018-03-29 20:46:21,374 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@7e0250a9 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 29.03 08:46:21, skipping insertion in model container [2018-03-29 20:46:21,374 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 29.03 08:46:21" (3/3) ... [2018-03-29 20:46:21,376 INFO L107 eAbstractionObserver]: Analyzing ICFG subseq-alloca_true-valid-memsafety_true-termination.i [2018-03-29 20:46:21,386 INFO L131 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2018-03-29 20:46:21,394 INFO L143 ceAbstractionStarter]: Appying trace abstraction to program that has 15 error locations. [2018-03-29 20:46:21,443 INFO L128 ementStrategyFactory]: Using default assertion order modulation [2018-03-29 20:46:21,444 INFO L369 AbstractCegarLoop]: Interprodecural is true [2018-03-29 20:46:21,444 INFO L370 AbstractCegarLoop]: Hoare is true [2018-03-29 20:46:21,444 INFO L371 AbstractCegarLoop]: Compute interpolants for FPandBP [2018-03-29 20:46:21,445 INFO L372 AbstractCegarLoop]: Backedges is TWOTRACK [2018-03-29 20:46:21,445 INFO L373 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2018-03-29 20:46:21,445 INFO L374 AbstractCegarLoop]: Difference is false [2018-03-29 20:46:21,445 INFO L375 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2018-03-29 20:46:21,445 INFO L380 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2018-03-29 20:46:21,446 INFO L87 2NestedWordAutomaton]: Mode: main mode - execution starts in main procedure [2018-03-29 20:46:21,464 INFO L276 IsEmpty]: Start isEmpty. Operand 87 states. [2018-03-29 20:46:21,469 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 20 [2018-03-29 20:46:21,469 INFO L347 BasicCegarLoop]: Found error trace [2018-03-29 20:46:21,470 INFO L355 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-03-29 20:46:21,470 INFO L408 AbstractCegarLoop]: === Iteration 1 === [subseqErr8RequiresViolation, subseqErr4RequiresViolation, subseqErr2RequiresViolation, subseqErr3RequiresViolation, subseqErr9RequiresViolation, subseqErr7RequiresViolation, subseqErr5RequiresViolation, subseqErr1RequiresViolation, subseqErr0RequiresViolation, subseqErr6RequiresViolation, mainErr3RequiresViolation, mainErr1RequiresViolation, mainErr2RequiresViolation, mainErr4EnsuresViolationMEMORY_LEAK, mainErr0RequiresViolation]=== [2018-03-29 20:46:21,474 INFO L82 PathProgramCache]: Analyzing trace with hash 1217463340, 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 20:46:21,486 INFO L68 tionRefinementEngine]: Using refinement strategy FixedRefinementStrategy [2018-03-29 20:46:21,516 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-03-29 20:46:21,526 INFO L270 TraceCheckSpWp]: Computing forward predicates... [2018-03-29 20:46:21,567 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 20:46:21,568 INFO L267 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2018-03-29 20:46:21,573 INFO L267 ElimStorePlain]: Start of recursive call 1: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-03-29 20:46:21,573 INFO L202 ElimStorePlain]: Needed 2 recursive calls to eliminate 1 variables, input treesize:6, output treesize:5 [2018-03-29 20:46:21,593 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 12 treesize of output 11 [2018-03-29 20:46:21,594 INFO L267 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2018-03-29 20:46:21,600 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 20:46:21,600 INFO L202 ElimStorePlain]: Needed 2 recursive calls to eliminate 2 variables, input treesize:12, output treesize:11 [2018-03-29 20:46:21,624 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 20:46:21,625 INFO L314 TraceCheckSpWp]: Computing backward predicates... [2018-03-29 20:46:21,652 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 20:46:21,690 INFO L320 seRefinementStrategy]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2018-03-29 20:46:21,690 INFO L335 seRefinementStrategy]: Number of different interpolants: perfect sequences [3, 3] imperfect sequences [] total 3 [2018-03-29 20:46:21,693 INFO L442 AbstractCegarLoop]: Interpolant automaton has 4 states [2018-03-29 20:46:21,707 INFO L132 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2018-03-29 20:46:21,708 INFO L133 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2018-03-29 20:46:21,711 INFO L87 Difference]: Start difference. First operand 87 states. Second operand 4 states. [2018-03-29 20:46:21,817 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-03-29 20:46:21,817 INFO L93 Difference]: Finished difference Result 109 states and 115 transitions. [2018-03-29 20:46:21,817 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2018-03-29 20:46:21,819 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 19 [2018-03-29 20:46:21,819 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-03-29 20:46:21,827 INFO L225 Difference]: With dead ends: 109 [2018-03-29 20:46:21,827 INFO L226 Difference]: Without dead ends: 83 [2018-03-29 20:46:21,830 INFO L567 BasicCegarLoop]: 0 DeclaredPredicates, 38 GetRequests, 33 SyntacticMatches, 2 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2018-03-29 20:46:21,847 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 83 states. [2018-03-29 20:46:21,868 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 83 to 83. [2018-03-29 20:46:21,869 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 83 states. [2018-03-29 20:46:21,871 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 83 states to 83 states and 88 transitions. [2018-03-29 20:46:21,872 INFO L78 Accepts]: Start accepts. Automaton has 83 states and 88 transitions. Word has length 19 [2018-03-29 20:46:21,872 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-03-29 20:46:21,873 INFO L459 AbstractCegarLoop]: Abstraction has 83 states and 88 transitions. [2018-03-29 20:46:21,873 INFO L460 AbstractCegarLoop]: Interpolant automaton has 4 states. [2018-03-29 20:46:21,873 INFO L276 IsEmpty]: Start isEmpty. Operand 83 states and 88 transitions. [2018-03-29 20:46:21,873 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 20 [2018-03-29 20:46:21,873 INFO L347 BasicCegarLoop]: Found error trace [2018-03-29 20:46:21,873 INFO L355 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-03-29 20:46:21,874 INFO L408 AbstractCegarLoop]: === Iteration 2 === [subseqErr8RequiresViolation, subseqErr4RequiresViolation, subseqErr2RequiresViolation, subseqErr3RequiresViolation, subseqErr9RequiresViolation, subseqErr7RequiresViolation, subseqErr5RequiresViolation, subseqErr1RequiresViolation, subseqErr0RequiresViolation, subseqErr6RequiresViolation, mainErr3RequiresViolation, mainErr1RequiresViolation, mainErr2RequiresViolation, mainErr4EnsuresViolationMEMORY_LEAK, mainErr0RequiresViolation]=== [2018-03-29 20:46:21,874 INFO L82 PathProgramCache]: Analyzing trace with hash 1217463341, 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 20:46:21,880 INFO L68 tionRefinementEngine]: Using refinement strategy FixedRefinementStrategy [2018-03-29 20:46:21,895 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-03-29 20:46:21,897 INFO L270 TraceCheckSpWp]: Computing forward predicates... [2018-03-29 20:46:21,922 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 20:46:21,922 INFO L267 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2018-03-29 20:46:21,936 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 20:46:21,936 INFO L267 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 1 xjuncts. [2018-03-29 20:46:21,948 INFO L267 ElimStorePlain]: Start of recursive call 1: 2 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-03-29 20:46:21,948 INFO L202 ElimStorePlain]: Needed 3 recursive calls to eliminate 2 variables, input treesize:19, output treesize:17 [2018-03-29 20:46:21,988 INFO L700 Elim1Store]: detected not equals via solver [2018-03-29 20:46:21,990 INFO L700 Elim1Store]: detected not equals via solver [2018-03-29 20:46:21,991 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 2 select indices, 2 select index equivalence classes, 2 disjoint index pairs (out of 1 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 11 treesize of output 4 [2018-03-29 20:46:21,991 INFO L267 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2018-03-29 20:46:22,008 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 15 [2018-03-29 20:46:22,009 INFO L267 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 1 xjuncts. [2018-03-29 20:46:22,023 INFO L267 ElimStorePlain]: Start of recursive call 1: 2 dim-0 vars, 2 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-03-29 20:46:22,023 INFO L202 ElimStorePlain]: Needed 3 recursive calls to eliminate 4 variables, input treesize:28, output treesize:12 [2018-03-29 20:46:22,043 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-03-29 20:46:22,044 INFO L314 TraceCheckSpWp]: Computing backward predicates... [2018-03-29 20:46:26,213 WARN L148 SmtUtils]: Spent 4085ms on a formula simplification that was a NOOP. DAG size: 26 [2018-03-29 20:46:26,230 INFO L267 ElimStorePlain]: Start of recursive call 1: End of recursive call: and 1 xjuncts. [2018-03-29 20:46:26,230 INFO L202 ElimStorePlain]: Needed 1 recursive calls to eliminate 5 variables, input treesize:25, output treesize:3 [2018-03-29 20:46:26,238 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 20:46:26,259 INFO L320 seRefinementStrategy]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2018-03-29 20:46:26,260 INFO L335 seRefinementStrategy]: Number of different interpolants: perfect sequences [5, 5] imperfect sequences [] total 8 [2018-03-29 20:46:26,261 INFO L442 AbstractCegarLoop]: Interpolant automaton has 9 states [2018-03-29 20:46:26,261 INFO L132 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2018-03-29 20:46:26,261 INFO L133 InterpolantAutomaton]: CoverageRelationStatistics Valid=23, Invalid=49, Unknown=0, NotChecked=0, Total=72 [2018-03-29 20:46:26,262 INFO L87 Difference]: Start difference. First operand 83 states and 88 transitions. Second operand 9 states. [2018-03-29 20:46:26,487 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-03-29 20:46:26,487 INFO L93 Difference]: Finished difference Result 83 states and 88 transitions. [2018-03-29 20:46:26,488 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2018-03-29 20:46:26,488 INFO L78 Accepts]: Start accepts. Automaton has 9 states. Word has length 19 [2018-03-29 20:46:26,488 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-03-29 20:46:26,489 INFO L225 Difference]: With dead ends: 83 [2018-03-29 20:46:26,489 INFO L226 Difference]: Without dead ends: 82 [2018-03-29 20:46:26,490 INFO L567 BasicCegarLoop]: 0 DeclaredPredicates, 38 GetRequests, 30 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 13 ImplicationChecksByTransitivity, 4.2s TimeCoverageRelationStatistics Valid=32, Invalid=58, Unknown=0, NotChecked=0, Total=90 [2018-03-29 20:46:26,490 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 82 states. [2018-03-29 20:46:26,495 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 82 to 82. [2018-03-29 20:46:26,495 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 82 states. [2018-03-29 20:46:26,496 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 82 states to 82 states and 87 transitions. [2018-03-29 20:46:26,496 INFO L78 Accepts]: Start accepts. Automaton has 82 states and 87 transitions. Word has length 19 [2018-03-29 20:46:26,497 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-03-29 20:46:26,497 INFO L459 AbstractCegarLoop]: Abstraction has 82 states and 87 transitions. [2018-03-29 20:46:26,497 INFO L460 AbstractCegarLoop]: Interpolant automaton has 9 states. [2018-03-29 20:46:26,497 INFO L276 IsEmpty]: Start isEmpty. Operand 82 states and 87 transitions. [2018-03-29 20:46:26,497 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 21 [2018-03-29 20:46:26,497 INFO L347 BasicCegarLoop]: Found error trace [2018-03-29 20:46:26,497 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] [2018-03-29 20:46:26,498 INFO L408 AbstractCegarLoop]: === Iteration 3 === [subseqErr8RequiresViolation, subseqErr4RequiresViolation, subseqErr2RequiresViolation, subseqErr3RequiresViolation, subseqErr9RequiresViolation, subseqErr7RequiresViolation, subseqErr5RequiresViolation, subseqErr1RequiresViolation, subseqErr0RequiresViolation, subseqErr6RequiresViolation, mainErr3RequiresViolation, mainErr1RequiresViolation, mainErr2RequiresViolation, mainErr4EnsuresViolationMEMORY_LEAK, mainErr0RequiresViolation]=== [2018-03-29 20:46:26,498 INFO L82 PathProgramCache]: Analyzing trace with hash -913342120, 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 20:46:26,504 INFO L68 tionRefinementEngine]: Using refinement strategy FixedRefinementStrategy [2018-03-29 20:46:26,516 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-03-29 20:46:26,518 INFO L270 TraceCheckSpWp]: Computing forward predicates... [2018-03-29 20:46:26,528 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 20:46:26,528 INFO L267 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2018-03-29 20:46:26,529 INFO L267 ElimStorePlain]: Start of recursive call 1: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-03-29 20:46:26,530 INFO L202 ElimStorePlain]: Needed 2 recursive calls to eliminate 1 variables, input treesize:6, output treesize:5 [2018-03-29 20:46:26,536 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 20:46:26,536 INFO L314 TraceCheckSpWp]: Computing backward predicates... [2018-03-29 20:46:26,540 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 20:46:26,569 INFO L320 seRefinementStrategy]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2018-03-29 20:46:26,569 INFO L335 seRefinementStrategy]: Number of different interpolants: perfect sequences [3, 3] imperfect sequences [] total 3 [2018-03-29 20:46:26,570 INFO L442 AbstractCegarLoop]: Interpolant automaton has 4 states [2018-03-29 20:46:26,570 INFO L132 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2018-03-29 20:46:26,570 INFO L133 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2018-03-29 20:46:26,570 INFO L87 Difference]: Start difference. First operand 82 states and 87 transitions. Second operand 4 states. [2018-03-29 20:46:26,620 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-03-29 20:46:26,620 INFO L93 Difference]: Finished difference Result 82 states and 87 transitions. [2018-03-29 20:46:26,620 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2018-03-29 20:46:26,621 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 20 [2018-03-29 20:46:26,621 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-03-29 20:46:26,622 INFO L225 Difference]: With dead ends: 82 [2018-03-29 20:46:26,622 INFO L226 Difference]: Without dead ends: 81 [2018-03-29 20:46:26,623 INFO L567 BasicCegarLoop]: 0 DeclaredPredicates, 40 GetRequests, 37 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2018-03-29 20:46:26,623 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 81 states. [2018-03-29 20:46:26,629 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 81 to 81. [2018-03-29 20:46:26,629 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 81 states. [2018-03-29 20:46:26,630 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 81 states to 81 states and 86 transitions. [2018-03-29 20:46:26,631 INFO L78 Accepts]: Start accepts. Automaton has 81 states and 86 transitions. Word has length 20 [2018-03-29 20:46:26,631 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-03-29 20:46:26,631 INFO L459 AbstractCegarLoop]: Abstraction has 81 states and 86 transitions. [2018-03-29 20:46:26,631 INFO L460 AbstractCegarLoop]: Interpolant automaton has 4 states. [2018-03-29 20:46:26,631 INFO L276 IsEmpty]: Start isEmpty. Operand 81 states and 86 transitions. [2018-03-29 20:46:26,632 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 21 [2018-03-29 20:46:26,632 INFO L347 BasicCegarLoop]: Found error trace [2018-03-29 20:46:26,632 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] [2018-03-29 20:46:26,632 INFO L408 AbstractCegarLoop]: === Iteration 4 === [subseqErr8RequiresViolation, subseqErr4RequiresViolation, subseqErr2RequiresViolation, subseqErr3RequiresViolation, subseqErr9RequiresViolation, subseqErr7RequiresViolation, subseqErr5RequiresViolation, subseqErr1RequiresViolation, subseqErr0RequiresViolation, subseqErr6RequiresViolation, mainErr3RequiresViolation, mainErr1RequiresViolation, mainErr2RequiresViolation, mainErr4EnsuresViolationMEMORY_LEAK, mainErr0RequiresViolation]=== [2018-03-29 20:46:26,633 INFO L82 PathProgramCache]: Analyzing trace with hash -913342119, 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 20:46:26,641 INFO L68 tionRefinementEngine]: Using refinement strategy FixedRefinementStrategy [2018-03-29 20:46:26,653 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-03-29 20:46:26,655 INFO L270 TraceCheckSpWp]: Computing forward predicates... [2018-03-29 20:46:26,684 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 20:46:26,684 INFO L267 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2018-03-29 20:46:26,688 INFO L267 ElimStorePlain]: Start of recursive call 1: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-03-29 20:46:26,689 INFO L202 ElimStorePlain]: Needed 2 recursive calls to eliminate 1 variables, input treesize:13, output treesize:12 [2018-03-29 20:46:26,704 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 20:46:26,704 INFO L314 TraceCheckSpWp]: Computing backward predicates... [2018-03-29 20:46:26,728 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 20:46:26,750 INFO L320 seRefinementStrategy]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2018-03-29 20:46:26,750 INFO L335 seRefinementStrategy]: Number of different interpolants: perfect sequences [4, 4] imperfect sequences [] total 6 [2018-03-29 20:46:26,750 INFO L442 AbstractCegarLoop]: Interpolant automaton has 7 states [2018-03-29 20:46:26,750 INFO L132 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2018-03-29 20:46:26,751 INFO L133 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=27, Unknown=0, NotChecked=0, Total=42 [2018-03-29 20:46:26,751 INFO L87 Difference]: Start difference. First operand 81 states and 86 transitions. Second operand 7 states. [2018-03-29 20:46:26,854 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-03-29 20:46:26,854 INFO L93 Difference]: Finished difference Result 81 states and 86 transitions. [2018-03-29 20:46:26,854 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2018-03-29 20:46:26,854 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 20 [2018-03-29 20:46:26,854 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-03-29 20:46:26,855 INFO L225 Difference]: With dead ends: 81 [2018-03-29 20:46:26,855 INFO L226 Difference]: Without dead ends: 80 [2018-03-29 20:46:26,855 INFO L567 BasicCegarLoop]: 0 DeclaredPredicates, 40 GetRequests, 34 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 5 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=22, Invalid=34, Unknown=0, NotChecked=0, Total=56 [2018-03-29 20:46:26,856 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 80 states. [2018-03-29 20:46:26,859 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 80 to 80. [2018-03-29 20:46:26,859 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 80 states. [2018-03-29 20:46:26,860 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 80 states to 80 states and 85 transitions. [2018-03-29 20:46:26,860 INFO L78 Accepts]: Start accepts. Automaton has 80 states and 85 transitions. Word has length 20 [2018-03-29 20:46:26,860 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-03-29 20:46:26,860 INFO L459 AbstractCegarLoop]: Abstraction has 80 states and 85 transitions. [2018-03-29 20:46:26,861 INFO L460 AbstractCegarLoop]: Interpolant automaton has 7 states. [2018-03-29 20:46:26,861 INFO L276 IsEmpty]: Start isEmpty. Operand 80 states and 85 transitions. [2018-03-29 20:46:26,861 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 28 [2018-03-29 20:46:26,861 INFO L347 BasicCegarLoop]: Found error trace [2018-03-29 20:46:26,861 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 20:46:26,861 INFO L408 AbstractCegarLoop]: === Iteration 5 === [subseqErr8RequiresViolation, subseqErr4RequiresViolation, subseqErr2RequiresViolation, subseqErr3RequiresViolation, subseqErr9RequiresViolation, subseqErr7RequiresViolation, subseqErr5RequiresViolation, subseqErr1RequiresViolation, subseqErr0RequiresViolation, subseqErr6RequiresViolation, mainErr3RequiresViolation, mainErr1RequiresViolation, mainErr2RequiresViolation, mainErr4EnsuresViolationMEMORY_LEAK, mainErr0RequiresViolation]=== [2018-03-29 20:46:26,861 INFO L82 PathProgramCache]: Analyzing trace with hash 454780171, 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 20:46:26,867 INFO L68 tionRefinementEngine]: Using refinement strategy FixedRefinementStrategy [2018-03-29 20:46:26,880 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-03-29 20:46:26,882 INFO L270 TraceCheckSpWp]: Computing forward predicates... [2018-03-29 20:46:26,898 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 20:46:26,898 INFO L314 TraceCheckSpWp]: Computing backward predicates... [2018-03-29 20:46:26,902 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-03-29 20:46:26,924 INFO L320 seRefinementStrategy]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2018-03-29 20:46:26,924 INFO L335 seRefinementStrategy]: Number of different interpolants: perfect sequences [5, 5] imperfect sequences [] total 5 [2018-03-29 20:46:26,924 INFO L442 AbstractCegarLoop]: Interpolant automaton has 6 states [2018-03-29 20:46:26,925 INFO L132 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2018-03-29 20:46:26,925 INFO L133 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2018-03-29 20:46:26,925 INFO L87 Difference]: Start difference. First operand 80 states and 85 transitions. Second operand 6 states. [2018-03-29 20:46:27,009 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-03-29 20:46:27,010 INFO L93 Difference]: Finished difference Result 87 states and 92 transitions. [2018-03-29 20:46:27,010 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2018-03-29 20:46:27,010 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 27 [2018-03-29 20:46:27,011 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-03-29 20:46:27,011 INFO L225 Difference]: With dead ends: 87 [2018-03-29 20:46:27,012 INFO L226 Difference]: Without dead ends: 85 [2018-03-29 20:46:27,012 INFO L567 BasicCegarLoop]: 0 DeclaredPredicates, 55 GetRequests, 49 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=19, Invalid=37, Unknown=0, NotChecked=0, Total=56 [2018-03-29 20:46:27,012 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 85 states. [2018-03-29 20:46:27,019 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 85 to 84. [2018-03-29 20:46:27,019 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 84 states. [2018-03-29 20:46:27,020 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 84 states to 84 states and 90 transitions. [2018-03-29 20:46:27,020 INFO L78 Accepts]: Start accepts. Automaton has 84 states and 90 transitions. Word has length 27 [2018-03-29 20:46:27,021 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-03-29 20:46:27,021 INFO L459 AbstractCegarLoop]: Abstraction has 84 states and 90 transitions. [2018-03-29 20:46:27,021 INFO L460 AbstractCegarLoop]: Interpolant automaton has 6 states. [2018-03-29 20:46:27,021 INFO L276 IsEmpty]: Start isEmpty. Operand 84 states and 90 transitions. [2018-03-29 20:46:27,022 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 28 [2018-03-29 20:46:27,022 INFO L347 BasicCegarLoop]: Found error trace [2018-03-29 20:46:27,022 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 20:46:27,022 INFO L408 AbstractCegarLoop]: === Iteration 6 === [subseqErr8RequiresViolation, subseqErr4RequiresViolation, subseqErr2RequiresViolation, subseqErr3RequiresViolation, subseqErr9RequiresViolation, subseqErr7RequiresViolation, subseqErr5RequiresViolation, subseqErr1RequiresViolation, subseqErr0RequiresViolation, subseqErr6RequiresViolation, mainErr3RequiresViolation, mainErr1RequiresViolation, mainErr2RequiresViolation, mainErr4EnsuresViolationMEMORY_LEAK, mainErr0RequiresViolation]=== [2018-03-29 20:46:27,023 INFO L82 PathProgramCache]: Analyzing trace with hash 454780172, 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 20:46:27,030 INFO L68 tionRefinementEngine]: Using refinement strategy FixedRefinementStrategy [2018-03-29 20:46:27,045 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-03-29 20:46:27,047 INFO L270 TraceCheckSpWp]: Computing forward predicates... [2018-03-29 20:46:27,094 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 20:46:27,094 INFO L314 TraceCheckSpWp]: Computing backward predicates... [2018-03-29 20:46:27,103 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 16 treesize of output 12 [2018-03-29 20:46:27,104 INFO L267 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2018-03-29 20:46:27,111 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 12 treesize of output 10 [2018-03-29 20:46:27,112 INFO L267 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 1 xjuncts. [2018-03-29 20:46:27,114 INFO L267 ElimStorePlain]: Start of recursive call 1: 2 dim-0 vars, 2 dim-1 vars, End of recursive call: and 2 xjuncts. [2018-03-29 20:46:27,115 INFO L202 ElimStorePlain]: Needed 3 recursive calls to eliminate 4 variables, input treesize:29, output treesize:7 [2018-03-29 20:46:27,128 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 20:46:27,149 INFO L320 seRefinementStrategy]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2018-03-29 20:46:27,150 INFO L335 seRefinementStrategy]: Number of different interpolants: perfect sequences [8, 8] imperfect sequences [] total 8 [2018-03-29 20:46:27,150 INFO L442 AbstractCegarLoop]: Interpolant automaton has 9 states [2018-03-29 20:46:27,150 INFO L132 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2018-03-29 20:46:27,150 INFO L133 InterpolantAutomaton]: CoverageRelationStatistics Valid=17, Invalid=55, Unknown=0, NotChecked=0, Total=72 [2018-03-29 20:46:27,151 INFO L87 Difference]: Start difference. First operand 84 states and 90 transitions. Second operand 9 states. [2018-03-29 20:46:27,289 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-03-29 20:46:27,289 INFO L93 Difference]: Finished difference Result 85 states and 90 transitions. [2018-03-29 20:46:27,289 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2018-03-29 20:46:27,290 INFO L78 Accepts]: Start accepts. Automaton has 9 states. Word has length 27 [2018-03-29 20:46:27,290 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-03-29 20:46:27,291 INFO L225 Difference]: With dead ends: 85 [2018-03-29 20:46:27,291 INFO L226 Difference]: Without dead ends: 83 [2018-03-29 20:46:27,291 INFO L567 BasicCegarLoop]: 0 DeclaredPredicates, 58 GetRequests, 44 SyntacticMatches, 2 SemanticMatches, 12 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 20 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=45, Invalid=137, Unknown=0, NotChecked=0, Total=182 [2018-03-29 20:46:27,292 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 83 states. [2018-03-29 20:46:27,295 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 83 to 83. [2018-03-29 20:46:27,296 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 83 states. [2018-03-29 20:46:27,296 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 83 states to 83 states and 88 transitions. [2018-03-29 20:46:27,296 INFO L78 Accepts]: Start accepts. Automaton has 83 states and 88 transitions. Word has length 27 [2018-03-29 20:46:27,296 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-03-29 20:46:27,297 INFO L459 AbstractCegarLoop]: Abstraction has 83 states and 88 transitions. [2018-03-29 20:46:27,297 INFO L460 AbstractCegarLoop]: Interpolant automaton has 9 states. [2018-03-29 20:46:27,297 INFO L276 IsEmpty]: Start isEmpty. Operand 83 states and 88 transitions. [2018-03-29 20:46:27,298 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 31 [2018-03-29 20:46:27,298 INFO L347 BasicCegarLoop]: Found error trace [2018-03-29 20:46:27,298 INFO L355 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-03-29 20:46:27,298 INFO L408 AbstractCegarLoop]: === Iteration 7 === [subseqErr8RequiresViolation, subseqErr4RequiresViolation, subseqErr2RequiresViolation, subseqErr3RequiresViolation, subseqErr9RequiresViolation, subseqErr7RequiresViolation, subseqErr5RequiresViolation, subseqErr1RequiresViolation, subseqErr0RequiresViolation, subseqErr6RequiresViolation, mainErr3RequiresViolation, mainErr1RequiresViolation, mainErr2RequiresViolation, mainErr4EnsuresViolationMEMORY_LEAK, mainErr0RequiresViolation]=== [2018-03-29 20:46:27,298 INFO L82 PathProgramCache]: Analyzing trace with hash 2029255543, 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 20:46:27,304 INFO L68 tionRefinementEngine]: Using refinement strategy FixedRefinementStrategy [2018-03-29 20:46:27,320 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-03-29 20:46:27,323 INFO L270 TraceCheckSpWp]: Computing forward predicates... [2018-03-29 20:46:27,338 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 20:46:27,339 INFO L314 TraceCheckSpWp]: Computing backward predicates... [2018-03-29 20:46:27,344 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 20:46:27,366 INFO L320 seRefinementStrategy]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2018-03-29 20:46:27,366 INFO L335 seRefinementStrategy]: Number of different interpolants: perfect sequences [5, 5] imperfect sequences [] total 5 [2018-03-29 20:46:27,366 INFO L442 AbstractCegarLoop]: Interpolant automaton has 6 states [2018-03-29 20:46:27,366 INFO L132 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2018-03-29 20:46:27,366 INFO L133 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2018-03-29 20:46:27,367 INFO L87 Difference]: Start difference. First operand 83 states and 88 transitions. Second operand 6 states. [2018-03-29 20:46:27,445 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-03-29 20:46:27,445 INFO L93 Difference]: Finished difference Result 104 states and 111 transitions. [2018-03-29 20:46:27,445 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2018-03-29 20:46:27,445 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 30 [2018-03-29 20:46:27,446 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-03-29 20:46:27,447 INFO L225 Difference]: With dead ends: 104 [2018-03-29 20:46:27,447 INFO L226 Difference]: Without dead ends: 101 [2018-03-29 20:46:27,447 INFO L567 BasicCegarLoop]: 0 DeclaredPredicates, 61 GetRequests, 55 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=19, Invalid=37, Unknown=0, NotChecked=0, Total=56 [2018-03-29 20:46:27,447 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 101 states. [2018-03-29 20:46:27,452 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 101 to 98. [2018-03-29 20:46:27,452 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 98 states. [2018-03-29 20:46:27,452 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 98 states to 98 states and 108 transitions. [2018-03-29 20:46:27,453 INFO L78 Accepts]: Start accepts. Automaton has 98 states and 108 transitions. Word has length 30 [2018-03-29 20:46:27,453 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-03-29 20:46:27,453 INFO L459 AbstractCegarLoop]: Abstraction has 98 states and 108 transitions. [2018-03-29 20:46:27,453 INFO L460 AbstractCegarLoop]: Interpolant automaton has 6 states. [2018-03-29 20:46:27,453 INFO L276 IsEmpty]: Start isEmpty. Operand 98 states and 108 transitions. [2018-03-29 20:46:27,453 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 31 [2018-03-29 20:46:27,454 INFO L347 BasicCegarLoop]: Found error trace [2018-03-29 20:46:27,454 INFO L355 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-03-29 20:46:27,454 INFO L408 AbstractCegarLoop]: === Iteration 8 === [subseqErr8RequiresViolation, subseqErr4RequiresViolation, subseqErr2RequiresViolation, subseqErr3RequiresViolation, subseqErr9RequiresViolation, subseqErr7RequiresViolation, subseqErr5RequiresViolation, subseqErr1RequiresViolation, subseqErr0RequiresViolation, subseqErr6RequiresViolation, mainErr3RequiresViolation, mainErr1RequiresViolation, mainErr2RequiresViolation, mainErr4EnsuresViolationMEMORY_LEAK, mainErr0RequiresViolation]=== [2018-03-29 20:46:27,454 INFO L82 PathProgramCache]: Analyzing trace with hash 2029255544, 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 20:46:27,459 INFO L68 tionRefinementEngine]: Using refinement strategy FixedRefinementStrategy [2018-03-29 20:46:27,474 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-03-29 20:46:27,477 INFO L270 TraceCheckSpWp]: Computing forward predicates... [2018-03-29 20:46:27,531 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 20:46:27,531 INFO L314 TraceCheckSpWp]: Computing backward predicates... [2018-03-29 20:46:27,538 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 12 treesize of output 10 [2018-03-29 20:46:27,539 INFO L267 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2018-03-29 20:46:27,546 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 16 treesize of output 12 [2018-03-29 20:46:27,547 INFO L267 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 1 xjuncts. [2018-03-29 20:46:27,552 INFO L267 ElimStorePlain]: Start of recursive call 1: 2 dim-0 vars, 2 dim-1 vars, End of recursive call: and 2 xjuncts. [2018-03-29 20:46:27,552 INFO L202 ElimStorePlain]: Needed 3 recursive calls to eliminate 4 variables, input treesize:29, output treesize:7 [2018-03-29 20:46:27,566 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 20:46:27,588 INFO L320 seRefinementStrategy]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2018-03-29 20:46:27,588 INFO L335 seRefinementStrategy]: Number of different interpolants: perfect sequences [8, 8] imperfect sequences [] total 8 [2018-03-29 20:46:27,589 INFO L442 AbstractCegarLoop]: Interpolant automaton has 9 states [2018-03-29 20:46:27,589 INFO L132 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2018-03-29 20:46:27,589 INFO L133 InterpolantAutomaton]: CoverageRelationStatistics Valid=17, Invalid=55, Unknown=0, NotChecked=0, Total=72 [2018-03-29 20:46:27,589 INFO L87 Difference]: Start difference. First operand 98 states and 108 transitions. Second operand 9 states. [2018-03-29 20:46:27,695 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-03-29 20:46:27,695 INFO L93 Difference]: Finished difference Result 101 states and 108 transitions. [2018-03-29 20:46:27,696 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2018-03-29 20:46:27,696 INFO L78 Accepts]: Start accepts. Automaton has 9 states. Word has length 30 [2018-03-29 20:46:27,696 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-03-29 20:46:27,697 INFO L225 Difference]: With dead ends: 101 [2018-03-29 20:46:27,697 INFO L226 Difference]: Without dead ends: 98 [2018-03-29 20:46:27,697 INFO L567 BasicCegarLoop]: 0 DeclaredPredicates, 64 GetRequests, 50 SyntacticMatches, 2 SemanticMatches, 12 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 20 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=45, Invalid=137, Unknown=0, NotChecked=0, Total=182 [2018-03-29 20:46:27,697 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 98 states. [2018-03-29 20:46:27,704 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 98 to 98. [2018-03-29 20:46:27,704 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 98 states. [2018-03-29 20:46:27,705 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 98 states to 98 states and 105 transitions. [2018-03-29 20:46:27,705 INFO L78 Accepts]: Start accepts. Automaton has 98 states and 105 transitions. Word has length 30 [2018-03-29 20:46:27,705 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-03-29 20:46:27,706 INFO L459 AbstractCegarLoop]: Abstraction has 98 states and 105 transitions. [2018-03-29 20:46:27,706 INFO L460 AbstractCegarLoop]: Interpolant automaton has 9 states. [2018-03-29 20:46:27,706 INFO L276 IsEmpty]: Start isEmpty. Operand 98 states and 105 transitions. [2018-03-29 20:46:27,707 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 47 [2018-03-29 20:46:27,707 INFO L347 BasicCegarLoop]: Found error trace [2018-03-29 20:46:27,708 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-03-29 20:46:27,708 INFO L408 AbstractCegarLoop]: === Iteration 9 === [subseqErr8RequiresViolation, subseqErr4RequiresViolation, subseqErr2RequiresViolation, subseqErr3RequiresViolation, subseqErr9RequiresViolation, subseqErr7RequiresViolation, subseqErr5RequiresViolation, subseqErr1RequiresViolation, subseqErr0RequiresViolation, subseqErr6RequiresViolation, mainErr3RequiresViolation, mainErr1RequiresViolation, mainErr2RequiresViolation, mainErr4EnsuresViolationMEMORY_LEAK, mainErr0RequiresViolation]=== [2018-03-29 20:46:27,708 INFO L82 PathProgramCache]: Analyzing trace with hash -2071992893, 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 20:46:27,715 INFO L68 tionRefinementEngine]: Using refinement strategy FixedRefinementStrategy [2018-03-29 20:46:27,734 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-03-29 20:46:27,736 INFO L270 TraceCheckSpWp]: Computing forward predicates... [2018-03-29 20:46:27,743 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 4 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-03-29 20:46:27,743 INFO L314 TraceCheckSpWp]: Computing backward predicates... [2018-03-29 20:46:27,750 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 4 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-03-29 20:46:27,771 INFO L320 seRefinementStrategy]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2018-03-29 20:46:27,771 INFO L335 seRefinementStrategy]: Number of different interpolants: perfect sequences [3, 3] imperfect sequences [] total 3 [2018-03-29 20:46:27,772 INFO L442 AbstractCegarLoop]: Interpolant automaton has 3 states [2018-03-29 20:46:27,772 INFO L132 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2018-03-29 20:46:27,772 INFO L133 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2018-03-29 20:46:27,772 INFO L87 Difference]: Start difference. First operand 98 states and 105 transitions. Second operand 3 states. [2018-03-29 20:46:27,781 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-03-29 20:46:27,781 INFO L93 Difference]: Finished difference Result 158 states and 170 transitions. [2018-03-29 20:46:27,782 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2018-03-29 20:46:27,782 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 46 [2018-03-29 20:46:27,782 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-03-29 20:46:27,782 INFO L225 Difference]: With dead ends: 158 [2018-03-29 20:46:27,783 INFO L226 Difference]: Without dead ends: 92 [2018-03-29 20:46:27,783 INFO L567 BasicCegarLoop]: 0 DeclaredPredicates, 91 GetRequests, 90 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2018-03-29 20:46:27,784 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 92 states. [2018-03-29 20:46:27,790 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 92 to 92. [2018-03-29 20:46:27,790 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 92 states. [2018-03-29 20:46:27,790 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 92 states to 92 states and 98 transitions. [2018-03-29 20:46:27,791 INFO L78 Accepts]: Start accepts. Automaton has 92 states and 98 transitions. Word has length 46 [2018-03-29 20:46:27,791 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-03-29 20:46:27,791 INFO L459 AbstractCegarLoop]: Abstraction has 92 states and 98 transitions. [2018-03-29 20:46:27,791 INFO L460 AbstractCegarLoop]: Interpolant automaton has 3 states. [2018-03-29 20:46:27,791 INFO L276 IsEmpty]: Start isEmpty. Operand 92 states and 98 transitions. [2018-03-29 20:46:27,792 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 48 [2018-03-29 20:46:27,792 INFO L347 BasicCegarLoop]: Found error trace [2018-03-29 20:46:27,792 INFO L355 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-03-29 20:46:27,792 INFO L408 AbstractCegarLoop]: === Iteration 10 === [subseqErr8RequiresViolation, subseqErr4RequiresViolation, subseqErr2RequiresViolation, subseqErr3RequiresViolation, subseqErr9RequiresViolation, subseqErr7RequiresViolation, subseqErr5RequiresViolation, subseqErr1RequiresViolation, subseqErr0RequiresViolation, subseqErr6RequiresViolation, mainErr3RequiresViolation, mainErr1RequiresViolation, mainErr2RequiresViolation, mainErr4EnsuresViolationMEMORY_LEAK, mainErr0RequiresViolation]=== [2018-03-29 20:46:27,793 INFO L82 PathProgramCache]: Analyzing trace with hash 795302885, now seen corresponding path program 1 times No working directory specified, using /storage/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 11 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 11 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2018-03-29 20:46:27,808 INFO L68 tionRefinementEngine]: Using refinement strategy FixedRefinementStrategy [2018-03-29 20:46:27,826 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-03-29 20:46:27,829 INFO L270 TraceCheckSpWp]: Computing forward predicates... [2018-03-29 20:46:27,864 INFO L700 Elim1Store]: detected not equals via solver [2018-03-29 20:46:27,865 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 2 select indices, 2 select index equivalence classes, 2 disjoint index pairs (out of 1 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 20 treesize of output 21 [2018-03-29 20:46:27,868 INFO L700 Elim1Store]: detected not equals via solver [2018-03-29 20:46:27,869 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 2 select indices, 2 select index equivalence classes, 2 disjoint index pairs (out of 1 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 17 treesize of output 21 [2018-03-29 20:46:27,869 INFO L267 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 1 xjuncts. [2018-03-29 20:46:27,874 INFO L267 ElimStorePlain]: Start of recursive call 2: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-03-29 20:46:27,878 INFO L267 ElimStorePlain]: Start of recursive call 1: 2 dim-0 vars, 1 dim-1 vars, End of recursive call: 2 dim-0 vars, and 1 xjuncts. [2018-03-29 20:46:27,878 INFO L202 ElimStorePlain]: Needed 3 recursive calls to eliminate 3 variables, input treesize:23, output treesize:15 [2018-03-29 20:46:27,941 WARN L1033 $PredicateComparison]: unable to prove that (exists ((|main_#t~malloc12.base| Int)) (let ((.cse0 (store |c_old(#valid)| |main_#t~malloc12.base| 1))) (and (= (select .cse0 |c_main_#t~malloc13.base|) 0) (= |c_#valid| (store (store .cse0 |c_main_#t~malloc13.base| 1) |main_#t~malloc12.base| 0)) (= 0 (select |c_old(#valid)| |main_#t~malloc12.base|))))) is different from true [2018-03-29 20:46:27,954 WARN L1033 $PredicateComparison]: unable to prove that (exists ((|main_#t~malloc13.base| Int) (|main_#t~malloc12.base| Int)) (let ((.cse0 (store |c_old(#valid)| |main_#t~malloc12.base| 1))) (and (= (select .cse0 |main_#t~malloc13.base|) 0) (= |c_#valid| (store (store (store .cse0 |main_#t~malloc13.base| 1) |main_#t~malloc12.base| 0) |main_#t~malloc13.base| 0)) (= 0 (select |c_old(#valid)| |main_#t~malloc12.base|))))) is different from true [2018-03-29 20:46:27,961 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 20:46:27,962 INFO L314 TraceCheckSpWp]: Computing backward predicates... [2018-03-29 20:46:28,014 WARN L1011 $PredicateComparison]: unable to prove that (forall ((|v_main_#t~malloc13.base_12| Int)) (or (not (= (select |c_#valid| |v_main_#t~malloc13.base_12|) 0)) (= |c_old(#valid)| (store (store (store |c_#valid| |v_main_#t~malloc13.base_12| 1) |c_main_#t~malloc12.base| 0) |v_main_#t~malloc13.base_12| 0)))) is different from false [2018-03-29 20:46:28,019 WARN L1011 $PredicateComparison]: unable to prove that (forall ((|v_main_#t~malloc13.base_12| Int) (|v_main_#t~malloc12.base_11| Int)) (let ((.cse0 (store |c_#valid| |v_main_#t~malloc12.base_11| 1))) (or (= (store (store (store .cse0 |v_main_#t~malloc13.base_12| 1) |v_main_#t~malloc12.base_11| 0) |v_main_#t~malloc13.base_12| 0) |c_old(#valid)|) (not (= (select .cse0 |v_main_#t~malloc13.base_12|) 0)) (not (= 0 (select |c_#valid| |v_main_#t~malloc12.base_11|)))))) is different from false [2018-03-29 20:46:28,042 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 20:46:28,064 INFO L320 seRefinementStrategy]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2018-03-29 20:46:28,064 INFO L335 seRefinementStrategy]: Number of different interpolants: perfect sequences [7, 6] imperfect sequences [] total 11 [2018-03-29 20:46:28,064 INFO L442 AbstractCegarLoop]: Interpolant automaton has 12 states [2018-03-29 20:46:28,064 INFO L132 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2018-03-29 20:46:28,064 INFO L133 InterpolantAutomaton]: CoverageRelationStatistics Valid=23, Invalid=45, Unknown=4, NotChecked=60, Total=132 [2018-03-29 20:46:28,065 INFO L87 Difference]: Start difference. First operand 92 states and 98 transitions. Second operand 12 states. [2018-03-29 20:46:28,076 WARN L1011 $PredicateComparison]: unable to prove that (and (forall ((|v_main_#t~malloc13.base_12| Int) (|v_main_#t~malloc12.base_11| Int)) (let ((.cse0 (store |c_#valid| |v_main_#t~malloc12.base_11| 1))) (or (= (store (store (store .cse0 |v_main_#t~malloc13.base_12| 1) |v_main_#t~malloc12.base_11| 0) |v_main_#t~malloc13.base_12| 0) |c_old(#valid)|) (not (= (select .cse0 |v_main_#t~malloc13.base_12|) 0)) (not (= 0 (select |c_#valid| |v_main_#t~malloc12.base_11|)))))) (= |c_#valid| |c_old(#valid)|)) is different from false [2018-03-29 20:46:28,435 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-03-29 20:46:28,436 INFO L93 Difference]: Finished difference Result 169 states and 180 transitions. [2018-03-29 20:46:28,436 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2018-03-29 20:46:28,436 INFO L78 Accepts]: Start accepts. Automaton has 12 states. Word has length 47 [2018-03-29 20:46:28,437 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-03-29 20:46:28,438 INFO L225 Difference]: With dead ends: 169 [2018-03-29 20:46:28,438 INFO L226 Difference]: Without dead ends: 148 [2018-03-29 20:46:28,439 INFO L567 BasicCegarLoop]: 0 DeclaredPredicates, 101 GetRequests, 83 SyntacticMatches, 2 SemanticMatches, 16 ConstructedPredicates, 5 IntricatePredicates, 0 DeprecatedPredicates, 12 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=45, Invalid=125, Unknown=6, NotChecked=130, Total=306 [2018-03-29 20:46:28,447 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 148 states. [2018-03-29 20:46:28,460 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 148 to 142. [2018-03-29 20:46:28,460 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 142 states. [2018-03-29 20:46:28,462 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 142 states to 142 states and 156 transitions. [2018-03-29 20:46:28,462 INFO L78 Accepts]: Start accepts. Automaton has 142 states and 156 transitions. Word has length 47 [2018-03-29 20:46:28,462 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-03-29 20:46:28,462 INFO L459 AbstractCegarLoop]: Abstraction has 142 states and 156 transitions. [2018-03-29 20:46:28,462 INFO L460 AbstractCegarLoop]: Interpolant automaton has 12 states. [2018-03-29 20:46:28,462 INFO L276 IsEmpty]: Start isEmpty. Operand 142 states and 156 transitions. [2018-03-29 20:46:28,464 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 49 [2018-03-29 20:46:28,464 INFO L347 BasicCegarLoop]: Found error trace [2018-03-29 20:46:28,465 INFO L355 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-03-29 20:46:28,465 INFO L408 AbstractCegarLoop]: === Iteration 11 === [subseqErr8RequiresViolation, subseqErr4RequiresViolation, subseqErr2RequiresViolation, subseqErr3RequiresViolation, subseqErr9RequiresViolation, subseqErr7RequiresViolation, subseqErr5RequiresViolation, subseqErr1RequiresViolation, subseqErr0RequiresViolation, subseqErr6RequiresViolation, mainErr3RequiresViolation, mainErr1RequiresViolation, mainErr2RequiresViolation, mainErr4EnsuresViolationMEMORY_LEAK, mainErr0RequiresViolation]=== [2018-03-29 20:46:28,465 INFO L82 PathProgramCache]: Analyzing trace with hash -1021496817, now seen corresponding path program 1 times No working directory specified, using /storage/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 12 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 12 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2018-03-29 20:46:28,481 INFO L68 tionRefinementEngine]: Using refinement strategy FixedRefinementStrategy [2018-03-29 20:46:28,504 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-03-29 20:46:28,507 INFO L270 TraceCheckSpWp]: Computing forward predicates... [2018-03-29 20:46:28,581 INFO L700 Elim1Store]: detected not equals via solver [2018-03-29 20:46:28,582 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 2 select indices, 2 select index equivalence classes, 2 disjoint index pairs (out of 1 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 20 treesize of output 27 [2018-03-29 20:46:28,597 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 2 select indices, 2 select index equivalence classes, 2 disjoint index pairs (out of 1 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 23 treesize of output 15 [2018-03-29 20:46:28,598 INFO L267 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 1 xjuncts. [2018-03-29 20:46:28,628 INFO L267 ElimStorePlain]: Start of recursive call 2: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-03-29 20:46:28,633 INFO L267 ElimStorePlain]: Start of recursive call 1: 2 dim-0 vars, 1 dim-1 vars, End of recursive call: 2 dim-0 vars, and 1 xjuncts. [2018-03-29 20:46:28,633 INFO L202 ElimStorePlain]: Needed 3 recursive calls to eliminate 3 variables, input treesize:23, output treesize:15 [2018-03-29 20:46:28,674 WARN L1033 $PredicateComparison]: unable to prove that (exists ((|main_#t~malloc12.base| Int)) (let ((.cse0 (store |c_old(#valid)| |main_#t~malloc12.base| 1))) (and (= (select .cse0 |c_main_#t~malloc13.base|) 0) (= |c_#valid| (store (store .cse0 |c_main_#t~malloc13.base| 1) |main_#t~malloc12.base| 0)) (= 0 (select |c_old(#valid)| |main_#t~malloc12.base|))))) is different from true [2018-03-29 20:46:28,679 WARN L1033 $PredicateComparison]: unable to prove that (exists ((|main_#t~malloc13.base| Int) (|main_#t~malloc12.base| Int)) (let ((.cse0 (store |c_old(#valid)| |main_#t~malloc12.base| 1))) (and (= (select .cse0 |main_#t~malloc13.base|) 0) (= |c_#valid| (store (store (store .cse0 |main_#t~malloc13.base| 1) |main_#t~malloc12.base| 0) |main_#t~malloc13.base| 0)) (= 0 (select |c_old(#valid)| |main_#t~malloc12.base|))))) is different from true [2018-03-29 20:46:28,687 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 20:46:28,687 INFO L314 TraceCheckSpWp]: Computing backward predicates... [2018-03-29 20:46:28,770 WARN L1011 $PredicateComparison]: unable to prove that (forall ((|v_main_#t~malloc13.base_14| Int)) (or (= |c_old(#valid)| (store (store (store |c_#valid| |v_main_#t~malloc13.base_14| 1) |c_main_#t~malloc12.base| 0) |v_main_#t~malloc13.base_14| 0)) (not (= (select |c_#valid| |v_main_#t~malloc13.base_14|) 0)))) is different from false [2018-03-29 20:46:28,779 WARN L1011 $PredicateComparison]: unable to prove that (forall ((|v_main_#t~malloc13.base_14| Int) (|v_main_#t~malloc12.base_13| Int)) (let ((.cse0 (store |c_#valid| |v_main_#t~malloc12.base_13| 1))) (or (not (= 0 (select |c_#valid| |v_main_#t~malloc12.base_13|))) (= (store (store (store .cse0 |v_main_#t~malloc13.base_14| 1) |v_main_#t~malloc12.base_13| 0) |v_main_#t~malloc13.base_14| 0) |c_old(#valid)|) (not (= 0 (select .cse0 |v_main_#t~malloc13.base_14|)))))) is different from false [2018-03-29 20:46:28,807 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 20:46:28,829 INFO L320 seRefinementStrategy]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2018-03-29 20:46:28,830 INFO L335 seRefinementStrategy]: Number of different interpolants: perfect sequences [7, 6] imperfect sequences [] total 11 [2018-03-29 20:46:28,830 INFO L442 AbstractCegarLoop]: Interpolant automaton has 12 states [2018-03-29 20:46:28,830 INFO L132 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2018-03-29 20:46:28,830 INFO L133 InterpolantAutomaton]: CoverageRelationStatistics Valid=23, Invalid=45, Unknown=4, NotChecked=60, Total=132 [2018-03-29 20:46:28,830 INFO L87 Difference]: Start difference. First operand 142 states and 156 transitions. Second operand 12 states. [2018-03-29 20:46:28,843 WARN L1011 $PredicateComparison]: unable to prove that (and (= |c_#valid| |c_old(#valid)|) (forall ((|v_main_#t~malloc13.base_14| Int) (|v_main_#t~malloc12.base_13| Int)) (let ((.cse0 (store |c_#valid| |v_main_#t~malloc12.base_13| 1))) (or (not (= 0 (select |c_#valid| |v_main_#t~malloc12.base_13|))) (= (store (store (store .cse0 |v_main_#t~malloc13.base_14| 1) |v_main_#t~malloc12.base_13| 0) |v_main_#t~malloc13.base_14| 0) |c_old(#valid)|) (not (= 0 (select .cse0 |v_main_#t~malloc13.base_14|))))))) is different from false [2018-03-29 20:46:29,267 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-03-29 20:46:29,267 INFO L93 Difference]: Finished difference Result 219 states and 237 transitions. [2018-03-29 20:46:29,267 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2018-03-29 20:46:29,268 INFO L78 Accepts]: Start accepts. Automaton has 12 states. Word has length 48 [2018-03-29 20:46:29,268 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-03-29 20:46:29,269 INFO L225 Difference]: With dead ends: 219 [2018-03-29 20:46:29,269 INFO L226 Difference]: Without dead ends: 198 [2018-03-29 20:46:29,269 INFO L567 BasicCegarLoop]: 0 DeclaredPredicates, 103 GetRequests, 85 SyntacticMatches, 2 SemanticMatches, 16 ConstructedPredicates, 5 IntricatePredicates, 0 DeprecatedPredicates, 12 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=45, Invalid=125, Unknown=6, NotChecked=130, Total=306 [2018-03-29 20:46:29,269 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 198 states. [2018-03-29 20:46:29,276 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 198 to 143. [2018-03-29 20:46:29,276 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 143 states. [2018-03-29 20:46:29,276 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 143 states to 143 states and 157 transitions. [2018-03-29 20:46:29,277 INFO L78 Accepts]: Start accepts. Automaton has 143 states and 157 transitions. Word has length 48 [2018-03-29 20:46:29,277 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-03-29 20:46:29,277 INFO L459 AbstractCegarLoop]: Abstraction has 143 states and 157 transitions. [2018-03-29 20:46:29,277 INFO L460 AbstractCegarLoop]: Interpolant automaton has 12 states. [2018-03-29 20:46:29,277 INFO L276 IsEmpty]: Start isEmpty. Operand 143 states and 157 transitions. [2018-03-29 20:46:29,279 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 49 [2018-03-29 20:46:29,279 INFO L347 BasicCegarLoop]: Found error trace [2018-03-29 20:46:29,279 INFO L355 BasicCegarLoop]: trace histogram [2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-03-29 20:46:29,279 INFO L408 AbstractCegarLoop]: === Iteration 12 === [subseqErr8RequiresViolation, subseqErr4RequiresViolation, subseqErr2RequiresViolation, subseqErr3RequiresViolation, subseqErr9RequiresViolation, subseqErr7RequiresViolation, subseqErr5RequiresViolation, subseqErr1RequiresViolation, subseqErr0RequiresViolation, subseqErr6RequiresViolation, mainErr3RequiresViolation, mainErr1RequiresViolation, mainErr2RequiresViolation, mainErr4EnsuresViolationMEMORY_LEAK, mainErr0RequiresViolation]=== [2018-03-29 20:46:29,279 INFO L82 PathProgramCache]: Analyzing trace with hash -199785914, now seen corresponding path program 1 times No working directory specified, using /storage/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 13 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 13 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2018-03-29 20:46:29,288 INFO L68 tionRefinementEngine]: Using refinement strategy FixedRefinementStrategy [2018-03-29 20:46:29,311 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-03-29 20:46:29,315 INFO L270 TraceCheckSpWp]: Computing forward predicates... [2018-03-29 20:46:29,339 INFO L134 CoverageAnalysis]: Checked inductivity of 5 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 5 trivial. 0 not checked. [2018-03-29 20:46:29,340 INFO L314 TraceCheckSpWp]: Computing backward predicates... [2018-03-29 20:46:29,345 INFO L134 CoverageAnalysis]: Checked inductivity of 5 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 5 trivial. 0 not checked. [2018-03-29 20:46:29,367 INFO L320 seRefinementStrategy]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2018-03-29 20:46:29,367 INFO L335 seRefinementStrategy]: Number of different interpolants: perfect sequences [6, 6] imperfect sequences [] total 6 [2018-03-29 20:46:29,368 INFO L442 AbstractCegarLoop]: Interpolant automaton has 7 states [2018-03-29 20:46:29,368 INFO L132 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2018-03-29 20:46:29,368 INFO L133 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2018-03-29 20:46:29,368 INFO L87 Difference]: Start difference. First operand 143 states and 157 transitions. Second operand 7 states. [2018-03-29 20:46:29,473 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-03-29 20:46:29,474 INFO L93 Difference]: Finished difference Result 143 states and 157 transitions. [2018-03-29 20:46:29,474 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2018-03-29 20:46:29,474 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 48 [2018-03-29 20:46:29,474 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-03-29 20:46:29,475 INFO L225 Difference]: With dead ends: 143 [2018-03-29 20:46:29,475 INFO L226 Difference]: Without dead ends: 141 [2018-03-29 20:46:29,476 INFO L567 BasicCegarLoop]: 0 DeclaredPredicates, 98 GetRequests, 90 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=29, Invalid=61, Unknown=0, NotChecked=0, Total=90 [2018-03-29 20:46:29,476 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 141 states. [2018-03-29 20:46:29,485 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 141 to 141. [2018-03-29 20:46:29,485 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 141 states. [2018-03-29 20:46:29,486 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 141 states to 141 states and 153 transitions. [2018-03-29 20:46:29,486 INFO L78 Accepts]: Start accepts. Automaton has 141 states and 153 transitions. Word has length 48 [2018-03-29 20:46:29,486 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-03-29 20:46:29,486 INFO L459 AbstractCegarLoop]: Abstraction has 141 states and 153 transitions. [2018-03-29 20:46:29,486 INFO L460 AbstractCegarLoop]: Interpolant automaton has 7 states. [2018-03-29 20:46:29,487 INFO L276 IsEmpty]: Start isEmpty. Operand 141 states and 153 transitions. [2018-03-29 20:46:29,488 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 49 [2018-03-29 20:46:29,488 INFO L347 BasicCegarLoop]: Found error trace [2018-03-29 20:46:29,488 INFO L355 BasicCegarLoop]: trace histogram [2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-03-29 20:46:29,488 INFO L408 AbstractCegarLoop]: === Iteration 13 === [subseqErr8RequiresViolation, subseqErr4RequiresViolation, subseqErr2RequiresViolation, subseqErr3RequiresViolation, subseqErr9RequiresViolation, subseqErr7RequiresViolation, subseqErr5RequiresViolation, subseqErr1RequiresViolation, subseqErr0RequiresViolation, subseqErr6RequiresViolation, mainErr3RequiresViolation, mainErr1RequiresViolation, mainErr2RequiresViolation, mainErr4EnsuresViolationMEMORY_LEAK, mainErr0RequiresViolation]=== [2018-03-29 20:46:29,489 INFO L82 PathProgramCache]: Analyzing trace with hash -199785913, now seen corresponding path program 1 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 20:46:29,503 INFO L68 tionRefinementEngine]: Using refinement strategy FixedRefinementStrategy [2018-03-29 20:46:29,526 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-03-29 20:46:29,529 INFO L270 TraceCheckSpWp]: Computing forward predicates... [2018-03-29 20:46:29,556 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 14 treesize of output 11 [2018-03-29 20:46:29,559 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 11 treesize of output 10 [2018-03-29 20:46:29,560 INFO L267 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 1 xjuncts. [2018-03-29 20:46:29,575 INFO L267 ElimStorePlain]: Start of recursive call 2: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-03-29 20:46:29,588 INFO L267 ElimStorePlain]: Start of recursive call 1: 1 dim-0 vars, 1 dim-2 vars, End of recursive call: 1 dim-0 vars, and 1 xjuncts. [2018-03-29 20:46:29,588 INFO L202 ElimStorePlain]: Needed 3 recursive calls to eliminate 2 variables, input treesize:28, output treesize:24 [2018-03-29 20:46:29,669 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 18 treesize of output 14 [2018-03-29 20:46:29,705 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 0 new quantified variables, introduced 1 case distinctions, treesize of input 14 treesize of output 11 [2018-03-29 20:46:29,705 INFO L267 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 2 xjuncts. [2018-03-29 20:46:29,709 INFO L267 ElimStorePlain]: Start of recursive call 2: 1 dim-1 vars, End of recursive call: and 2 xjuncts. [2018-03-29 20:46:29,718 INFO L267 ElimStorePlain]: Start of recursive call 1: 1 dim-0 vars, 1 dim-2 vars, End of recursive call: and 2 xjuncts. [2018-03-29 20:46:29,718 INFO L202 ElimStorePlain]: Needed 3 recursive calls to eliminate 2 variables, input treesize:31, output treesize:33 [2018-03-29 20:46:29,820 INFO L134 CoverageAnalysis]: Checked inductivity of 5 backedges. 0 proven. 5 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-03-29 20:46:29,820 INFO L314 TraceCheckSpWp]: Computing backward predicates... [2018-03-29 20:46:30,002 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 27 treesize of output 25 [2018-03-29 20:46:30,002 INFO L267 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2018-03-29 20:46:30,012 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 29 treesize of output 25 [2018-03-29 20:46:30,013 INFO L267 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 1 xjuncts. [2018-03-29 20:46:30,022 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 19 treesize of output 17 [2018-03-29 20:46:30,032 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 5 treesize of output 3 [2018-03-29 20:46:30,032 INFO L267 ElimStorePlain]: Start of recursive call 5: End of recursive call: and 1 xjuncts. [2018-03-29 20:46:30,034 INFO L267 ElimStorePlain]: Start of recursive call 4: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-03-29 20:46:30,041 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 17 treesize of output 15 [2018-03-29 20:46:30,051 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 5 treesize of output 3 [2018-03-29 20:46:30,052 INFO L267 ElimStorePlain]: Start of recursive call 7: End of recursive call: and 1 xjuncts. [2018-03-29 20:46:30,054 INFO L267 ElimStorePlain]: Start of recursive call 6: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-03-29 20:46:30,059 INFO L267 ElimStorePlain]: Start of recursive call 1: 2 dim-0 vars, 2 dim-1 vars, 2 dim-2 vars, End of recursive call: and 2 xjuncts. [2018-03-29 20:46:30,060 INFO L202 ElimStorePlain]: Needed 7 recursive calls to eliminate 6 variables, input treesize:57, output treesize:17 [2018-03-29 20:46:30,125 INFO L134 CoverageAnalysis]: Checked inductivity of 5 backedges. 0 proven. 5 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-03-29 20:46:30,147 INFO L320 seRefinementStrategy]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2018-03-29 20:46:30,147 INFO L335 seRefinementStrategy]: Number of different interpolants: perfect sequences [] imperfect sequences [13, 13] total 24 [2018-03-29 20:46:30,148 INFO L442 AbstractCegarLoop]: Interpolant automaton has 25 states [2018-03-29 20:46:30,148 INFO L132 InterpolantAutomaton]: Constructing interpolant automaton starting with 25 interpolants. [2018-03-29 20:46:30,148 INFO L133 InterpolantAutomaton]: CoverageRelationStatistics Valid=74, Invalid=526, Unknown=0, NotChecked=0, Total=600 [2018-03-29 20:46:30,148 INFO L87 Difference]: Start difference. First operand 141 states and 153 transitions. Second operand 25 states. [2018-03-29 20:46:31,013 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-03-29 20:46:31,014 INFO L93 Difference]: Finished difference Result 280 states and 305 transitions. [2018-03-29 20:46:31,014 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 23 states. [2018-03-29 20:46:31,014 INFO L78 Accepts]: Start accepts. Automaton has 25 states. Word has length 48 [2018-03-29 20:46:31,014 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-03-29 20:46:31,018 INFO L225 Difference]: With dead ends: 280 [2018-03-29 20:46:31,018 INFO L226 Difference]: Without dead ends: 273 [2018-03-29 20:46:31,019 INFO L567 BasicCegarLoop]: 0 DeclaredPredicates, 113 GetRequests, 71 SyntacticMatches, 1 SemanticMatches, 41 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 305 ImplicationChecksByTransitivity, 0.9s TimeCoverageRelationStatistics Valid=297, Invalid=1509, Unknown=0, NotChecked=0, Total=1806 [2018-03-29 20:46:31,019 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 273 states. [2018-03-29 20:46:31,031 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 273 to 197. [2018-03-29 20:46:31,032 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 197 states. [2018-03-29 20:46:31,033 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 197 states to 197 states and 217 transitions. [2018-03-29 20:46:31,033 INFO L78 Accepts]: Start accepts. Automaton has 197 states and 217 transitions. Word has length 48 [2018-03-29 20:46:31,033 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-03-29 20:46:31,033 INFO L459 AbstractCegarLoop]: Abstraction has 197 states and 217 transitions. [2018-03-29 20:46:31,033 INFO L460 AbstractCegarLoop]: Interpolant automaton has 25 states. [2018-03-29 20:46:31,033 INFO L276 IsEmpty]: Start isEmpty. Operand 197 states and 217 transitions. [2018-03-29 20:46:31,034 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 49 [2018-03-29 20:46:31,034 INFO L347 BasicCegarLoop]: Found error trace [2018-03-29 20:46:31,034 INFO L355 BasicCegarLoop]: trace histogram [2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-03-29 20:46:31,034 INFO L408 AbstractCegarLoop]: === Iteration 14 === [subseqErr8RequiresViolation, subseqErr4RequiresViolation, subseqErr2RequiresViolation, subseqErr3RequiresViolation, subseqErr9RequiresViolation, subseqErr7RequiresViolation, subseqErr5RequiresViolation, subseqErr1RequiresViolation, subseqErr0RequiresViolation, subseqErr6RequiresViolation, mainErr3RequiresViolation, mainErr1RequiresViolation, mainErr2RequiresViolation, mainErr4EnsuresViolationMEMORY_LEAK, mainErr0RequiresViolation]=== [2018-03-29 20:46:31,035 INFO L82 PathProgramCache]: Analyzing trace with hash 884000372, now seen corresponding path program 1 times No working directory specified, using /storage/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 15 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 15 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2018-03-29 20:46:31,043 INFO L68 tionRefinementEngine]: Using refinement strategy FixedRefinementStrategy [2018-03-29 20:46:31,059 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-03-29 20:46:31,062 INFO L270 TraceCheckSpWp]: Computing forward predicates... [2018-03-29 20:46:31,083 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 20:46:31,083 INFO L314 TraceCheckSpWp]: Computing backward predicates... [2018-03-29 20:46:31,090 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 20:46:31,125 INFO L320 seRefinementStrategy]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2018-03-29 20:46:31,125 INFO L335 seRefinementStrategy]: Number of different interpolants: perfect sequences [6, 6] imperfect sequences [] total 6 [2018-03-29 20:46:31,126 INFO L442 AbstractCegarLoop]: Interpolant automaton has 7 states [2018-03-29 20:46:31,126 INFO L132 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2018-03-29 20:46:31,126 INFO L133 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2018-03-29 20:46:31,126 INFO L87 Difference]: Start difference. First operand 197 states and 217 transitions. Second operand 7 states. [2018-03-29 20:46:31,197 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-03-29 20:46:31,197 INFO L93 Difference]: Finished difference Result 197 states and 217 transitions. [2018-03-29 20:46:31,197 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2018-03-29 20:46:31,197 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 48 [2018-03-29 20:46:31,198 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-03-29 20:46:31,199 INFO L225 Difference]: With dead ends: 197 [2018-03-29 20:46:31,199 INFO L226 Difference]: Without dead ends: 196 [2018-03-29 20:46:31,200 INFO L567 BasicCegarLoop]: 0 DeclaredPredicates, 98 GetRequests, 90 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=29, Invalid=61, Unknown=0, NotChecked=0, Total=90 [2018-03-29 20:46:31,200 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 196 states. [2018-03-29 20:46:31,211 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 196 to 196. [2018-03-29 20:46:31,211 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 196 states. [2018-03-29 20:46:31,212 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 196 states to 196 states and 213 transitions. [2018-03-29 20:46:31,212 INFO L78 Accepts]: Start accepts. Automaton has 196 states and 213 transitions. Word has length 48 [2018-03-29 20:46:31,212 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-03-29 20:46:31,212 INFO L459 AbstractCegarLoop]: Abstraction has 196 states and 213 transitions. [2018-03-29 20:46:31,212 INFO L460 AbstractCegarLoop]: Interpolant automaton has 7 states. [2018-03-29 20:46:31,213 INFO L276 IsEmpty]: Start isEmpty. Operand 196 states and 213 transitions. [2018-03-29 20:46:31,213 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 49 [2018-03-29 20:46:31,213 INFO L347 BasicCegarLoop]: Found error trace [2018-03-29 20:46:31,213 INFO L355 BasicCegarLoop]: trace histogram [2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-03-29 20:46:31,213 INFO L408 AbstractCegarLoop]: === Iteration 15 === [subseqErr8RequiresViolation, subseqErr4RequiresViolation, subseqErr2RequiresViolation, subseqErr3RequiresViolation, subseqErr9RequiresViolation, subseqErr7RequiresViolation, subseqErr5RequiresViolation, subseqErr1RequiresViolation, subseqErr0RequiresViolation, subseqErr6RequiresViolation, mainErr3RequiresViolation, mainErr1RequiresViolation, mainErr2RequiresViolation, mainErr4EnsuresViolationMEMORY_LEAK, mainErr0RequiresViolation]=== [2018-03-29 20:46:31,213 INFO L82 PathProgramCache]: Analyzing trace with hash 884000373, now seen corresponding path program 1 times No working directory specified, using /storage/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 16 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 16 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2018-03-29 20:46:31,219 INFO L68 tionRefinementEngine]: Using refinement strategy FixedRefinementStrategy [2018-03-29 20:46:31,235 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-03-29 20:46:31,238 INFO L270 TraceCheckSpWp]: Computing forward predicates... [2018-03-29 20:46:31,245 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 20:46:31,246 INFO L267 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2018-03-29 20:46:31,249 INFO L267 ElimStorePlain]: Start of recursive call 1: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-03-29 20:46:31,249 INFO L202 ElimStorePlain]: Needed 2 recursive calls to eliminate 1 variables, input treesize:10, output treesize:9 [2018-03-29 20:46:31,262 INFO L700 Elim1Store]: detected not equals via solver [2018-03-29 20:46:31,263 INFO L700 Elim1Store]: detected not equals via solver [2018-03-29 20:46:31,264 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 2 select indices, 2 select index equivalence classes, 2 disjoint index pairs (out of 1 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 11 treesize of output 4 [2018-03-29 20:46:31,264 INFO L267 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2018-03-29 20:46:31,267 INFO L267 ElimStorePlain]: Start of recursive call 1: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-03-29 20:46:31,267 INFO L202 ElimStorePlain]: Needed 2 recursive calls to eliminate 1 variables, input treesize:14, output treesize:8 [2018-03-29 20:46:31,282 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 14 treesize of output 11 [2018-03-29 20:46:31,283 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 11 treesize of output 10 [2018-03-29 20:46:31,284 INFO L267 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 1 xjuncts. [2018-03-29 20:46:31,285 INFO L267 ElimStorePlain]: Start of recursive call 2: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-03-29 20:46:31,291 INFO L267 ElimStorePlain]: Start of recursive call 1: 1 dim-0 vars, 1 dim-2 vars, End of recursive call: 1 dim-0 vars, and 1 xjuncts. [2018-03-29 20:46:31,291 INFO L202 ElimStorePlain]: Needed 3 recursive calls to eliminate 2 variables, input treesize:29, output treesize:25 [2018-03-29 20:46:31,307 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 1 disjoint index pairs (out of 1 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 25 treesize of output 26 [2018-03-29 20:46:31,309 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 11 treesize of output 10 [2018-03-29 20:46:31,309 INFO L267 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 1 xjuncts. [2018-03-29 20:46:31,313 INFO L267 ElimStorePlain]: Start of recursive call 2: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-03-29 20:46:31,320 INFO L267 ElimStorePlain]: Start of recursive call 1: 4 dim-0 vars, 1 dim-2 vars, End of recursive call: 4 dim-0 vars, and 1 xjuncts. [2018-03-29 20:46:31,320 INFO L202 ElimStorePlain]: Needed 3 recursive calls to eliminate 5 variables, input treesize:39, output treesize:35 [2018-03-29 20:46:32,274 WARN L148 SmtUtils]: Spent 756ms on a formula simplification that was a NOOP. DAG size: 43 [2018-03-29 20:46:32,371 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 3 select indices, 3 select index equivalence classes, 1 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 2 case distinctions, treesize of input 43 treesize of output 53 [2018-03-29 20:46:32,382 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 2 select indices, 2 select index equivalence classes, 2 disjoint index pairs (out of 1 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 41 treesize of output 33 [2018-03-29 20:46:32,382 INFO L267 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 1 xjuncts. [2018-03-29 20:46:32,432 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 41 treesize of output 33 [2018-03-29 20:46:32,432 INFO L267 ElimStorePlain]: Start of recursive call 4: End of recursive call: and 1 xjuncts. [2018-03-29 20:46:32,485 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 3 select indices, 3 select index equivalence classes, 2 disjoint index pairs (out of 3 index pairs), introduced 0 new quantified variables, introduced 2 case distinctions, treesize of input 37 treesize of output 43 [2018-03-29 20:46:32,486 INFO L267 ElimStorePlain]: Start of recursive call 5: End of recursive call: and 4 xjuncts. [2018-03-29 20:46:32,551 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 0 new quantified variables, introduced 1 case distinctions, treesize of input 29 treesize of output 27 [2018-03-29 20:46:32,551 INFO L267 ElimStorePlain]: Start of recursive call 6: End of recursive call: and 2 xjuncts. [2018-03-29 20:46:32,627 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 4 select indices, 4 select index equivalence classes, 3 disjoint index pairs (out of 6 index pairs), introduced 0 new quantified variables, introduced 3 case distinctions, treesize of input 33 treesize of output 49 [2018-03-29 20:46:32,628 INFO L267 ElimStorePlain]: Start of recursive call 7: End of recursive call: and 4 xjuncts. [2018-03-29 20:46:32,716 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 0 new quantified variables, introduced 1 case distinctions, treesize of input 33 treesize of output 31 [2018-03-29 20:46:32,717 INFO L267 ElimStorePlain]: Start of recursive call 8: End of recursive call: and 2 xjuncts. [2018-03-29 20:46:32,800 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 27 treesize of output 20 [2018-03-29 20:46:32,801 INFO L267 ElimStorePlain]: Start of recursive call 9: End of recursive call: and 1 xjuncts. [2018-03-29 20:46:32,803 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 23 treesize of output 16 [2018-03-29 20:46:32,803 INFO L267 ElimStorePlain]: Start of recursive call 10: End of recursive call: and 1 xjuncts. [2018-03-29 20:46:32,879 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 35 treesize of output 27 [2018-03-29 20:46:32,879 INFO L267 ElimStorePlain]: Start of recursive call 11: End of recursive call: and 1 xjuncts. [2018-03-29 20:46:32,881 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 34 treesize of output 26 [2018-03-29 20:46:32,882 INFO L267 ElimStorePlain]: Start of recursive call 12: End of recursive call: and 1 xjuncts. [2018-03-29 20:46:32,884 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 31 treesize of output 23 [2018-03-29 20:46:32,885 INFO L267 ElimStorePlain]: Start of recursive call 13: End of recursive call: and 1 xjuncts. [2018-03-29 20:46:32,936 INFO L267 ElimStorePlain]: Start of recursive call 2: 8 dim-1 vars, End of recursive call: and 7 xjuncts. [2018-03-29 20:46:32,988 INFO L267 ElimStorePlain]: Start of recursive call 1: 7 dim-0 vars, 1 dim-2 vars, End of recursive call: and 3 xjuncts. [2018-03-29 20:46:32,988 INFO L202 ElimStorePlain]: Needed 13 recursive calls to eliminate 8 variables, input treesize:63, output treesize:66 [2018-03-29 20:46:33,093 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-03-29 20:46:33,093 INFO L314 TraceCheckSpWp]: Computing backward predicates... [2018-03-29 20:46:33,669 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 15 treesize of output 11 [2018-03-29 20:46:33,670 INFO L267 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2018-03-29 20:46:33,686 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 26 treesize of output 28 [2018-03-29 20:46:33,719 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 24 treesize of output 16 [2018-03-29 20:46:33,720 INFO L267 ElimStorePlain]: Start of recursive call 4: End of recursive call: and 1 xjuncts. [2018-03-29 20:46:33,733 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 2 select indices, 2 select index equivalence classes, 2 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 21 treesize of output 15 [2018-03-29 20:46:33,733 INFO L267 ElimStorePlain]: Start of recursive call 5: End of recursive call: and 1 xjuncts. [2018-03-29 20:46:33,738 INFO L267 ElimStorePlain]: Start of recursive call 3: 3 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-03-29 20:46:33,748 INFO L267 ElimStorePlain]: Start of recursive call 1: 4 dim-0 vars, 1 dim-1 vars, 1 dim-2 vars, End of recursive call: and 1 xjuncts. [2018-03-29 20:46:33,748 INFO L202 ElimStorePlain]: Needed 5 recursive calls to eliminate 6 variables, input treesize:69, output treesize:7 [2018-03-29 20:46:33,820 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-03-29 20:46:33,856 INFO L320 seRefinementStrategy]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2018-03-29 20:46:33,856 INFO L335 seRefinementStrategy]: Number of different interpolants: perfect sequences [] imperfect sequences [20, 16] total 34 [2018-03-29 20:46:33,856 INFO L442 AbstractCegarLoop]: Interpolant automaton has 35 states [2018-03-29 20:46:33,856 INFO L132 InterpolantAutomaton]: Constructing interpolant automaton starting with 35 interpolants. [2018-03-29 20:46:33,857 INFO L133 InterpolantAutomaton]: CoverageRelationStatistics Valid=138, Invalid=1052, Unknown=0, NotChecked=0, Total=1190 [2018-03-29 20:46:33,857 INFO L87 Difference]: Start difference. First operand 196 states and 213 transitions. Second operand 35 states. [2018-03-29 20:46:37,014 WARN L151 SmtUtils]: Spent 2064ms on a formula simplification. DAG size of input: 72 DAG size of output 64 [2018-03-29 20:46:38,684 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-03-29 20:46:38,684 INFO L93 Difference]: Finished difference Result 352 states and 385 transitions. [2018-03-29 20:46:38,685 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 35 states. [2018-03-29 20:46:38,685 INFO L78 Accepts]: Start accepts. Automaton has 35 states. Word has length 48 [2018-03-29 20:46:38,686 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-03-29 20:46:38,687 INFO L225 Difference]: With dead ends: 352 [2018-03-29 20:46:38,687 INFO L226 Difference]: Without dead ends: 351 [2018-03-29 20:46:38,689 INFO L567 BasicCegarLoop]: 0 DeclaredPredicates, 125 GetRequests, 60 SyntacticMatches, 2 SemanticMatches, 63 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 873 ImplicationChecksByTransitivity, 5.5s TimeCoverageRelationStatistics Valid=637, Invalid=3523, Unknown=0, NotChecked=0, Total=4160 [2018-03-29 20:46:38,689 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 351 states. [2018-03-29 20:46:38,713 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 351 to 248. [2018-03-29 20:46:38,713 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 248 states. [2018-03-29 20:46:38,714 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 248 states to 248 states and 271 transitions. [2018-03-29 20:46:38,714 INFO L78 Accepts]: Start accepts. Automaton has 248 states and 271 transitions. Word has length 48 [2018-03-29 20:46:38,714 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-03-29 20:46:38,714 INFO L459 AbstractCegarLoop]: Abstraction has 248 states and 271 transitions. [2018-03-29 20:46:38,715 INFO L460 AbstractCegarLoop]: Interpolant automaton has 35 states. [2018-03-29 20:46:38,715 INFO L276 IsEmpty]: Start isEmpty. Operand 248 states and 271 transitions. [2018-03-29 20:46:38,715 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 49 [2018-03-29 20:46:38,715 INFO L347 BasicCegarLoop]: Found error trace [2018-03-29 20:46:38,715 INFO L355 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-03-29 20:46:38,715 INFO L408 AbstractCegarLoop]: === Iteration 16 === [subseqErr8RequiresViolation, subseqErr4RequiresViolation, subseqErr2RequiresViolation, subseqErr3RequiresViolation, subseqErr9RequiresViolation, subseqErr7RequiresViolation, subseqErr5RequiresViolation, subseqErr1RequiresViolation, subseqErr0RequiresViolation, subseqErr6RequiresViolation, mainErr3RequiresViolation, mainErr1RequiresViolation, mainErr2RequiresViolation, mainErr4EnsuresViolationMEMORY_LEAK, mainErr0RequiresViolation]=== [2018-03-29 20:46:38,715 INFO L82 PathProgramCache]: Analyzing trace with hash 2005570218, now seen corresponding path program 1 times No working directory specified, using /storage/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 17 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 17 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2018-03-29 20:46:38,721 INFO L68 tionRefinementEngine]: Using refinement strategy FixedRefinementStrategy [2018-03-29 20:46:38,735 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-03-29 20:46:38,737 INFO L270 TraceCheckSpWp]: Computing forward predicates... [2018-03-29 20:46:38,758 INFO L700 Elim1Store]: detected not equals via solver [2018-03-29 20:46:38,759 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 2 select indices, 2 select index equivalence classes, 2 disjoint index pairs (out of 1 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 20 treesize of output 21 [2018-03-29 20:46:38,761 INFO L700 Elim1Store]: detected not equals via solver [2018-03-29 20:46:38,762 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 2 select indices, 2 select index equivalence classes, 2 disjoint index pairs (out of 1 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 17 treesize of output 21 [2018-03-29 20:46:38,762 INFO L267 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 1 xjuncts. [2018-03-29 20:46:38,766 INFO L267 ElimStorePlain]: Start of recursive call 2: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-03-29 20:46:38,769 INFO L267 ElimStorePlain]: Start of recursive call 1: 2 dim-0 vars, 1 dim-1 vars, End of recursive call: 2 dim-0 vars, and 1 xjuncts. [2018-03-29 20:46:38,770 INFO L202 ElimStorePlain]: Needed 3 recursive calls to eliminate 3 variables, input treesize:23, output treesize:15 [2018-03-29 20:46:38,796 WARN L1033 $PredicateComparison]: unable to prove that (exists ((|main_#t~malloc12.base| Int)) (let ((.cse0 (store |c_old(#valid)| |main_#t~malloc12.base| 1))) (and (= (select .cse0 |c_main_#t~malloc13.base|) 0) (= |c_#valid| (store (store .cse0 |c_main_#t~malloc13.base| 1) |main_#t~malloc12.base| 0)) (= 0 (select |c_old(#valid)| |main_#t~malloc12.base|))))) is different from true [2018-03-29 20:46:38,800 WARN L1033 $PredicateComparison]: unable to prove that (exists ((|main_#t~malloc13.base| Int) (|main_#t~malloc12.base| Int)) (let ((.cse0 (store |c_old(#valid)| |main_#t~malloc12.base| 1))) (and (= (select .cse0 |main_#t~malloc13.base|) 0) (= |c_#valid| (store (store (store .cse0 |main_#t~malloc13.base| 1) |main_#t~malloc12.base| 0) |main_#t~malloc13.base| 0)) (= 0 (select |c_old(#valid)| |main_#t~malloc12.base|))))) is different from true [2018-03-29 20:46:38,806 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 20:46:38,807 INFO L314 TraceCheckSpWp]: Computing backward predicates... [2018-03-29 20:46:38,826 WARN L1011 $PredicateComparison]: unable to prove that (forall ((|v_main_#t~malloc13.base_18| Int)) (or (= |c_old(#valid)| (store (store (store |c_#valid| |v_main_#t~malloc13.base_18| 1) |c_main_#t~malloc12.base| 0) |v_main_#t~malloc13.base_18| 0)) (not (= (select |c_#valid| |v_main_#t~malloc13.base_18|) 0)))) is different from false [2018-03-29 20:46:38,838 WARN L1011 $PredicateComparison]: unable to prove that (forall ((|v_main_#t~malloc12.base_17| Int) (|v_main_#t~malloc13.base_18| Int)) (let ((.cse0 (store |c_#valid| |v_main_#t~malloc12.base_17| 1))) (or (not (= 0 (select |c_#valid| |v_main_#t~malloc12.base_17|))) (= (store (store (store .cse0 |v_main_#t~malloc13.base_18| 1) |v_main_#t~malloc12.base_17| 0) |v_main_#t~malloc13.base_18| 0) |c_old(#valid)|) (not (= (select .cse0 |v_main_#t~malloc13.base_18|) 0))))) is different from false [2018-03-29 20:46:38,876 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 20:46:38,898 INFO L320 seRefinementStrategy]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2018-03-29 20:46:38,898 INFO L335 seRefinementStrategy]: Number of different interpolants: perfect sequences [7, 6] imperfect sequences [] total 11 [2018-03-29 20:46:38,898 INFO L442 AbstractCegarLoop]: Interpolant automaton has 12 states [2018-03-29 20:46:38,899 INFO L132 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2018-03-29 20:46:38,899 INFO L133 InterpolantAutomaton]: CoverageRelationStatistics Valid=23, Invalid=45, Unknown=4, NotChecked=60, Total=132 [2018-03-29 20:46:38,899 INFO L87 Difference]: Start difference. First operand 248 states and 271 transitions. Second operand 12 states. [2018-03-29 20:46:38,910 WARN L1011 $PredicateComparison]: unable to prove that (and (= |c_#valid| |c_old(#valid)|) (forall ((|v_main_#t~malloc12.base_17| Int) (|v_main_#t~malloc13.base_18| Int)) (let ((.cse0 (store |c_#valid| |v_main_#t~malloc12.base_17| 1))) (or (not (= 0 (select |c_#valid| |v_main_#t~malloc12.base_17|))) (= (store (store (store .cse0 |v_main_#t~malloc13.base_18| 1) |v_main_#t~malloc12.base_17| 0) |v_main_#t~malloc13.base_18| 0) |c_old(#valid)|) (not (= (select .cse0 |v_main_#t~malloc13.base_18|) 0)))))) is different from false [2018-03-29 20:46:39,204 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-03-29 20:46:39,204 INFO L93 Difference]: Finished difference Result 375 states and 410 transitions. [2018-03-29 20:46:39,204 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2018-03-29 20:46:39,204 INFO L78 Accepts]: Start accepts. Automaton has 12 states. Word has length 48 [2018-03-29 20:46:39,205 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-03-29 20:46:39,206 INFO L225 Difference]: With dead ends: 375 [2018-03-29 20:46:39,206 INFO L226 Difference]: Without dead ends: 354 [2018-03-29 20:46:39,206 INFO L567 BasicCegarLoop]: 0 DeclaredPredicates, 103 GetRequests, 85 SyntacticMatches, 2 SemanticMatches, 16 ConstructedPredicates, 5 IntricatePredicates, 0 DeprecatedPredicates, 12 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=45, Invalid=125, Unknown=6, NotChecked=130, Total=306 [2018-03-29 20:46:39,207 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 354 states. [2018-03-29 20:46:39,219 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 354 to 248. [2018-03-29 20:46:39,219 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 248 states. [2018-03-29 20:46:39,220 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 248 states to 248 states and 271 transitions. [2018-03-29 20:46:39,220 INFO L78 Accepts]: Start accepts. Automaton has 248 states and 271 transitions. Word has length 48 [2018-03-29 20:46:39,220 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-03-29 20:46:39,220 INFO L459 AbstractCegarLoop]: Abstraction has 248 states and 271 transitions. [2018-03-29 20:46:39,220 INFO L460 AbstractCegarLoop]: Interpolant automaton has 12 states. [2018-03-29 20:46:39,221 INFO L276 IsEmpty]: Start isEmpty. Operand 248 states and 271 transitions. [2018-03-29 20:46:39,221 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 50 [2018-03-29 20:46:39,221 INFO L347 BasicCegarLoop]: Found error trace [2018-03-29 20:46:39,221 INFO L355 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-03-29 20:46:39,221 INFO L408 AbstractCegarLoop]: === Iteration 17 === [subseqErr8RequiresViolation, subseqErr4RequiresViolation, subseqErr2RequiresViolation, subseqErr3RequiresViolation, subseqErr9RequiresViolation, subseqErr7RequiresViolation, subseqErr5RequiresViolation, subseqErr1RequiresViolation, subseqErr0RequiresViolation, subseqErr6RequiresViolation, mainErr3RequiresViolation, mainErr1RequiresViolation, mainErr2RequiresViolation, mainErr4EnsuresViolationMEMORY_LEAK, mainErr0RequiresViolation]=== [2018-03-29 20:46:39,221 INFO L82 PathProgramCache]: Analyzing trace with hash 2137052138, now seen corresponding path program 1 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 20:46:39,227 INFO L68 tionRefinementEngine]: Using refinement strategy FixedRefinementStrategy [2018-03-29 20:46:39,242 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-03-29 20:46:39,243 INFO L270 TraceCheckSpWp]: Computing forward predicates... [2018-03-29 20:46:39,264 INFO L700 Elim1Store]: detected not equals via solver [2018-03-29 20:46:39,264 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 2 select indices, 2 select index equivalence classes, 2 disjoint index pairs (out of 1 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 20 treesize of output 27 [2018-03-29 20:46:39,266 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 2 select indices, 2 select index equivalence classes, 2 disjoint index pairs (out of 1 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 23 treesize of output 15 [2018-03-29 20:46:39,267 INFO L267 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 1 xjuncts. [2018-03-29 20:46:39,269 INFO L267 ElimStorePlain]: Start of recursive call 2: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-03-29 20:46:39,273 INFO L267 ElimStorePlain]: Start of recursive call 1: 2 dim-0 vars, 1 dim-1 vars, End of recursive call: 2 dim-0 vars, and 1 xjuncts. [2018-03-29 20:46:39,273 INFO L202 ElimStorePlain]: Needed 3 recursive calls to eliminate 3 variables, input treesize:23, output treesize:15 [2018-03-29 20:46:39,299 WARN L1033 $PredicateComparison]: unable to prove that (exists ((|main_#t~malloc12.base| Int)) (let ((.cse0 (store |c_old(#valid)| |main_#t~malloc12.base| 1))) (and (= (select .cse0 |c_main_#t~malloc13.base|) 0) (= |c_#valid| (store (store .cse0 |c_main_#t~malloc13.base| 1) |main_#t~malloc12.base| 0)) (= 0 (select |c_old(#valid)| |main_#t~malloc12.base|))))) is different from true [2018-03-29 20:46:39,303 WARN L1033 $PredicateComparison]: unable to prove that (exists ((|main_#t~malloc13.base| Int) (|main_#t~malloc12.base| Int)) (let ((.cse0 (store |c_old(#valid)| |main_#t~malloc12.base| 1))) (and (= (select .cse0 |main_#t~malloc13.base|) 0) (= |c_#valid| (store (store (store .cse0 |main_#t~malloc13.base| 1) |main_#t~malloc12.base| 0) |main_#t~malloc13.base| 0)) (= 0 (select |c_old(#valid)| |main_#t~malloc12.base|))))) is different from true [2018-03-29 20:46:39,309 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 20:46:39,309 INFO L314 TraceCheckSpWp]: Computing backward predicates... [2018-03-29 20:46:39,325 WARN L1011 $PredicateComparison]: unable to prove that (forall ((|v_main_#t~malloc13.base_20| Int)) (or (= (store (store (store |c_#valid| |v_main_#t~malloc13.base_20| 1) |c_main_#t~malloc12.base| 0) |v_main_#t~malloc13.base_20| 0) |c_old(#valid)|) (not (= 0 (select |c_#valid| |v_main_#t~malloc13.base_20|))))) is different from false [2018-03-29 20:46:39,328 WARN L1011 $PredicateComparison]: unable to prove that (forall ((|v_main_#t~malloc12.base_19| Int) (|v_main_#t~malloc13.base_20| Int)) (let ((.cse0 (store |c_#valid| |v_main_#t~malloc12.base_19| 1))) (or (not (= 0 (select .cse0 |v_main_#t~malloc13.base_20|))) (= |c_old(#valid)| (store (store (store .cse0 |v_main_#t~malloc13.base_20| 1) |v_main_#t~malloc12.base_19| 0) |v_main_#t~malloc13.base_20| 0)) (not (= 0 (select |c_#valid| |v_main_#t~malloc12.base_19|)))))) is different from false [2018-03-29 20:46:39,345 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 20:46:39,369 INFO L320 seRefinementStrategy]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2018-03-29 20:46:39,369 INFO L335 seRefinementStrategy]: Number of different interpolants: perfect sequences [7, 6] imperfect sequences [] total 11 [2018-03-29 20:46:39,369 INFO L442 AbstractCegarLoop]: Interpolant automaton has 12 states [2018-03-29 20:46:39,369 INFO L132 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2018-03-29 20:46:39,370 INFO L133 InterpolantAutomaton]: CoverageRelationStatistics Valid=23, Invalid=45, Unknown=4, NotChecked=60, Total=132 [2018-03-29 20:46:39,370 INFO L87 Difference]: Start difference. First operand 248 states and 271 transitions. Second operand 12 states. [2018-03-29 20:46:39,378 WARN L1011 $PredicateComparison]: unable to prove that (and (forall ((|v_main_#t~malloc12.base_19| Int) (|v_main_#t~malloc13.base_20| Int)) (let ((.cse0 (store |c_#valid| |v_main_#t~malloc12.base_19| 1))) (or (not (= 0 (select .cse0 |v_main_#t~malloc13.base_20|))) (= |c_old(#valid)| (store (store (store .cse0 |v_main_#t~malloc13.base_20| 1) |v_main_#t~malloc12.base_19| 0) |v_main_#t~malloc13.base_20| 0)) (not (= 0 (select |c_#valid| |v_main_#t~malloc12.base_19|)))))) (= |c_#valid| |c_old(#valid)|)) is different from false [2018-03-29 20:46:39,722 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-03-29 20:46:39,722 INFO L93 Difference]: Finished difference Result 251 states and 271 transitions. [2018-03-29 20:46:39,722 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2018-03-29 20:46:39,722 INFO L78 Accepts]: Start accepts. Automaton has 12 states. Word has length 49 [2018-03-29 20:46:39,723 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-03-29 20:46:39,723 INFO L225 Difference]: With dead ends: 251 [2018-03-29 20:46:39,723 INFO L226 Difference]: Without dead ends: 230 [2018-03-29 20:46:39,724 INFO L567 BasicCegarLoop]: 0 DeclaredPredicates, 105 GetRequests, 87 SyntacticMatches, 2 SemanticMatches, 16 ConstructedPredicates, 5 IntricatePredicates, 0 DeprecatedPredicates, 12 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=45, Invalid=125, Unknown=6, NotChecked=130, Total=306 [2018-03-29 20:46:39,724 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 230 states. [2018-03-29 20:46:39,732 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 230 to 122. [2018-03-29 20:46:39,733 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 122 states. [2018-03-29 20:46:39,733 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 122 states to 122 states and 129 transitions. [2018-03-29 20:46:39,733 INFO L78 Accepts]: Start accepts. Automaton has 122 states and 129 transitions. Word has length 49 [2018-03-29 20:46:39,733 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-03-29 20:46:39,733 INFO L459 AbstractCegarLoop]: Abstraction has 122 states and 129 transitions. [2018-03-29 20:46:39,734 INFO L460 AbstractCegarLoop]: Interpolant automaton has 12 states. [2018-03-29 20:46:39,734 INFO L276 IsEmpty]: Start isEmpty. Operand 122 states and 129 transitions. [2018-03-29 20:46:39,734 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 67 [2018-03-29 20:46:39,734 INFO L347 BasicCegarLoop]: Found error trace [2018-03-29 20:46:39,734 INFO L355 BasicCegarLoop]: trace histogram [3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-03-29 20:46:39,734 INFO L408 AbstractCegarLoop]: === Iteration 18 === [subseqErr8RequiresViolation, subseqErr4RequiresViolation, subseqErr2RequiresViolation, subseqErr3RequiresViolation, subseqErr9RequiresViolation, subseqErr7RequiresViolation, subseqErr5RequiresViolation, subseqErr1RequiresViolation, subseqErr0RequiresViolation, subseqErr6RequiresViolation, mainErr3RequiresViolation, mainErr1RequiresViolation, mainErr2RequiresViolation, mainErr4EnsuresViolationMEMORY_LEAK, mainErr0RequiresViolation]=== [2018-03-29 20:46:39,734 INFO L82 PathProgramCache]: Analyzing trace with hash -2006281386, now seen corresponding path program 2 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 20:46:39,743 INFO L68 tionRefinementEngine]: Using refinement strategy FixedRefinementStrategy [2018-03-29 20:46:39,771 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-03-29 20:46:39,773 INFO L270 TraceCheckSpWp]: Computing forward predicates... [2018-03-29 20:46:39,776 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 20:46:39,776 INFO L267 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2018-03-29 20:46:39,779 INFO L267 ElimStorePlain]: Start of recursive call 1: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-03-29 20:46:39,779 INFO L202 ElimStorePlain]: Needed 2 recursive calls to eliminate 1 variables, input treesize:10, output treesize:9 [2018-03-29 20:46:39,788 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 15 treesize of output 12 [2018-03-29 20:46:39,790 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 12 treesize of output 11 [2018-03-29 20:46:39,790 INFO L267 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 1 xjuncts. [2018-03-29 20:46:39,791 INFO L267 ElimStorePlain]: Start of recursive call 2: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-03-29 20:46:39,792 INFO L267 ElimStorePlain]: Start of recursive call 1: 1 dim-2 vars, End of recursive call: and 1 xjuncts. [2018-03-29 20:46:39,792 INFO L202 ElimStorePlain]: Needed 3 recursive calls to eliminate 1 variables, input treesize:15, output treesize:11 [2018-03-29 20:46:39,845 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 19 treesize of output 15 [2018-03-29 20:46:39,857 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 0 new quantified variables, introduced 1 case distinctions, treesize of input 15 treesize of output 12 [2018-03-29 20:46:39,857 INFO L267 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 2 xjuncts. [2018-03-29 20:46:39,860 INFO L267 ElimStorePlain]: Start of recursive call 2: 1 dim-1 vars, End of recursive call: and 2 xjuncts. [2018-03-29 20:46:39,867 INFO L267 ElimStorePlain]: Start of recursive call 1: 1 dim-2 vars, End of recursive call: and 2 xjuncts. [2018-03-29 20:46:39,867 INFO L202 ElimStorePlain]: Needed 3 recursive calls to eliminate 1 variables, input treesize:29, output treesize:34 [2018-03-29 20:46:39,970 INFO L134 CoverageAnalysis]: Checked inductivity of 28 backedges. 5 proven. 23 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-03-29 20:46:39,970 INFO L314 TraceCheckSpWp]: Computing backward predicates... [2018-03-29 20:46:40,316 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 15 treesize of output 13 [2018-03-29 20:46:40,327 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 7 treesize of output 3 [2018-03-29 20:46:40,327 INFO L267 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 1 xjuncts. [2018-03-29 20:46:40,329 INFO L267 ElimStorePlain]: Start of recursive call 2: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-03-29 20:46:40,336 INFO L267 ElimStorePlain]: Start of recursive call 1: 1 dim-0 vars, 1 dim-2 vars, End of recursive call: and 2 xjuncts. [2018-03-29 20:46:40,336 INFO L202 ElimStorePlain]: Needed 3 recursive calls to eliminate 2 variables, input treesize:33, output treesize:35 [2018-03-29 20:46:40,417 INFO L134 CoverageAnalysis]: Checked inductivity of 28 backedges. 0 proven. 28 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-03-29 20:46:40,439 INFO L320 seRefinementStrategy]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2018-03-29 20:46:40,439 INFO L335 seRefinementStrategy]: Number of different interpolants: perfect sequences [] imperfect sequences [15, 15] total 29 [2018-03-29 20:46:40,440 INFO L442 AbstractCegarLoop]: Interpolant automaton has 30 states [2018-03-29 20:46:40,440 INFO L132 InterpolantAutomaton]: Constructing interpolant automaton starting with 30 interpolants. [2018-03-29 20:46:40,440 INFO L133 InterpolantAutomaton]: CoverageRelationStatistics Valid=89, Invalid=781, Unknown=0, NotChecked=0, Total=870 [2018-03-29 20:46:40,440 INFO L87 Difference]: Start difference. First operand 122 states and 129 transitions. Second operand 30 states. [2018-03-29 20:46:41,450 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-03-29 20:46:41,450 INFO L93 Difference]: Finished difference Result 158 states and 167 transitions. [2018-03-29 20:46:41,450 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 25 states. [2018-03-29 20:46:41,450 INFO L78 Accepts]: Start accepts. Automaton has 30 states. Word has length 66 [2018-03-29 20:46:41,451 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-03-29 20:46:41,451 INFO L225 Difference]: With dead ends: 158 [2018-03-29 20:46:41,451 INFO L226 Difference]: Without dead ends: 151 [2018-03-29 20:46:41,452 INFO L567 BasicCegarLoop]: 0 DeclaredPredicates, 152 GetRequests, 103 SyntacticMatches, 0 SemanticMatches, 49 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 278 ImplicationChecksByTransitivity, 1.2s TimeCoverageRelationStatistics Valid=515, Invalid=2035, Unknown=0, NotChecked=0, Total=2550 [2018-03-29 20:46:41,452 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 151 states. [2018-03-29 20:46:41,459 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 151 to 79. [2018-03-29 20:46:41,459 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 79 states. [2018-03-29 20:46:41,460 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 79 states to 79 states and 83 transitions. [2018-03-29 20:46:41,460 INFO L78 Accepts]: Start accepts. Automaton has 79 states and 83 transitions. Word has length 66 [2018-03-29 20:46:41,460 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-03-29 20:46:41,460 INFO L459 AbstractCegarLoop]: Abstraction has 79 states and 83 transitions. [2018-03-29 20:46:41,460 INFO L460 AbstractCegarLoop]: Interpolant automaton has 30 states. [2018-03-29 20:46:41,460 INFO L276 IsEmpty]: Start isEmpty. Operand 79 states and 83 transitions. [2018-03-29 20:46:41,461 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 70 [2018-03-29 20:46:41,461 INFO L347 BasicCegarLoop]: Found error trace [2018-03-29 20:46:41,461 INFO L355 BasicCegarLoop]: trace histogram [3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-03-29 20:46:41,461 INFO L408 AbstractCegarLoop]: === Iteration 19 === [subseqErr8RequiresViolation, subseqErr4RequiresViolation, subseqErr2RequiresViolation, subseqErr3RequiresViolation, subseqErr9RequiresViolation, subseqErr7RequiresViolation, subseqErr5RequiresViolation, subseqErr1RequiresViolation, subseqErr0RequiresViolation, subseqErr6RequiresViolation, mainErr3RequiresViolation, mainErr1RequiresViolation, mainErr2RequiresViolation, mainErr4EnsuresViolationMEMORY_LEAK, mainErr0RequiresViolation]=== [2018-03-29 20:46:41,461 INFO L82 PathProgramCache]: Analyzing trace with hash 852201644, now seen corresponding path program 2 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 20:46:41,472 INFO L68 tionRefinementEngine]: Using refinement strategy FixedRefinementStrategy [2018-03-29 20:46:41,495 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-03-29 20:46:41,498 INFO L270 TraceCheckSpWp]: Computing forward predicates... [2018-03-29 20:46:41,501 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 20:46:41,501 INFO L267 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2018-03-29 20:46:41,505 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 20:46:41,506 INFO L267 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 1 xjuncts. [2018-03-29 20:46:41,509 INFO L267 ElimStorePlain]: Start of recursive call 1: 2 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-03-29 20:46:41,509 INFO L202 ElimStorePlain]: Needed 3 recursive calls to eliminate 2 variables, input treesize:16, output treesize:14 [2018-03-29 20:46:41,520 INFO L700 Elim1Store]: detected not equals via solver [2018-03-29 20:46:41,521 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 15 [2018-03-29 20:46:41,521 INFO L267 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2018-03-29 20:46:41,528 INFO L700 Elim1Store]: detected not equals via solver [2018-03-29 20:46:41,529 INFO L700 Elim1Store]: detected not equals via solver [2018-03-29 20:46:41,530 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 2 select indices, 2 select index equivalence classes, 2 disjoint index pairs (out of 1 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 11 treesize of output 4 [2018-03-29 20:46:41,530 INFO L267 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 1 xjuncts. [2018-03-29 20:46:41,534 INFO L267 ElimStorePlain]: Start of recursive call 1: 2 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-03-29 20:46:41,534 INFO L202 ElimStorePlain]: Needed 3 recursive calls to eliminate 2 variables, input treesize:25, output treesize:18 [2018-03-29 20:46:41,551 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 15 treesize of output 12 [2018-03-29 20:46:41,553 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 12 treesize of output 11 [2018-03-29 20:46:41,553 INFO L267 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 1 xjuncts. [2018-03-29 20:46:41,555 INFO L267 ElimStorePlain]: Start of recursive call 2: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-03-29 20:46:41,558 INFO L267 ElimStorePlain]: Start of recursive call 1: 1 dim-2 vars, End of recursive call: and 1 xjuncts. [2018-03-29 20:46:41,559 INFO L202 ElimStorePlain]: Needed 3 recursive calls to eliminate 1 variables, input treesize:25, output treesize:21 [2018-03-29 20:46:41,571 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 1 disjoint index pairs (out of 1 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 28 treesize of output 29 [2018-03-29 20:46:41,573 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 13 treesize of output 12 [2018-03-29 20:46:41,573 INFO L267 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 1 xjuncts. [2018-03-29 20:46:41,577 INFO L267 ElimStorePlain]: Start of recursive call 2: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-03-29 20:46:41,581 INFO L267 ElimStorePlain]: Start of recursive call 1: 2 dim-0 vars, 1 dim-2 vars, End of recursive call: 2 dim-0 vars, and 1 xjuncts. [2018-03-29 20:46:41,581 INFO L202 ElimStorePlain]: Needed 3 recursive calls to eliminate 3 variables, input treesize:32, output treesize:28 [2018-03-29 20:46:43,876 WARN L148 SmtUtils]: Spent 2027ms on a formula simplification that was a NOOP. DAG size: 37 [2018-03-29 20:46:43,954 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 3 select indices, 3 select index equivalence classes, 1 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 2 case distinctions, treesize of input 46 treesize of output 56 [2018-03-29 20:46:43,958 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 48 treesize of output 38 [2018-03-29 20:46:43,959 INFO L267 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 1 xjuncts. [2018-03-29 20:46:44,012 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 0 new quantified variables, introduced 1 case distinctions, treesize of input 40 treesize of output 38 [2018-03-29 20:46:44,012 INFO L267 ElimStorePlain]: Start of recursive call 4: End of recursive call: and 2 xjuncts. [2018-03-29 20:46:44,060 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 40 treesize of output 30 [2018-03-29 20:46:44,061 INFO L267 ElimStorePlain]: Start of recursive call 5: End of recursive call: and 1 xjuncts. [2018-03-29 20:46:44,117 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 3 select indices, 3 select index equivalence classes, 2 disjoint index pairs (out of 3 index pairs), introduced 0 new quantified variables, introduced 2 case distinctions, treesize of input 30 treesize of output 37 [2018-03-29 20:46:44,118 INFO L267 ElimStorePlain]: Start of recursive call 6: End of recursive call: and 4 xjuncts. [2018-03-29 20:46:44,193 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 4 select indices, 4 select index equivalence classes, 3 disjoint index pairs (out of 6 index pairs), introduced 0 new quantified variables, introduced 3 case distinctions, treesize of input 36 treesize of output 55 [2018-03-29 20:46:44,194 INFO L267 ElimStorePlain]: Start of recursive call 7: End of recursive call: and 4 xjuncts. [2018-03-29 20:46:44,279 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 2 select indices, 2 select index equivalence classes, 2 disjoint index pairs (out of 1 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 29 treesize of output 21 [2018-03-29 20:46:44,280 INFO L267 ElimStorePlain]: Start of recursive call 8: End of recursive call: and 1 xjuncts. [2018-03-29 20:46:44,282 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 2 select indices, 2 select index equivalence classes, 2 disjoint index pairs (out of 1 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 34 treesize of output 26 [2018-03-29 20:46:44,283 INFO L267 ElimStorePlain]: Start of recursive call 9: End of recursive call: and 1 xjuncts. [2018-03-29 20:46:44,343 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 34 treesize of output 27 [2018-03-29 20:46:44,344 INFO L267 ElimStorePlain]: Start of recursive call 10: End of recursive call: and 1 xjuncts. [2018-03-29 20:46:44,397 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 0 new quantified variables, introduced 1 case distinctions, treesize of input 27 treesize of output 25 [2018-03-29 20:46:44,398 INFO L267 ElimStorePlain]: Start of recursive call 11: End of recursive call: and 2 xjuncts. [2018-03-29 20:46:44,441 INFO L267 ElimStorePlain]: Start of recursive call 2: 8 dim-1 vars, End of recursive call: and 7 xjuncts. [2018-03-29 20:46:44,489 INFO L267 ElimStorePlain]: Start of recursive call 1: 4 dim-0 vars, 1 dim-2 vars, End of recursive call: and 3 xjuncts. [2018-03-29 20:46:44,489 INFO L202 ElimStorePlain]: Needed 11 recursive calls to eliminate 5 variables, input treesize:60, output treesize:68 [2018-03-29 20:46:44,619 INFO L134 CoverageAnalysis]: Checked inductivity of 25 backedges. 12 proven. 13 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-03-29 20:46:44,619 INFO L314 TraceCheckSpWp]: Computing backward predicates... [2018-03-29 20:46:45,553 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 28 treesize of output 30 [2018-03-29 20:46:45,583 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 26 treesize of output 18 [2018-03-29 20:46:45,583 INFO L267 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 1 xjuncts. [2018-03-29 20:46:45,594 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 18 treesize of output 14 [2018-03-29 20:46:45,595 INFO L267 ElimStorePlain]: Start of recursive call 4: End of recursive call: and 1 xjuncts. [2018-03-29 20:46:45,605 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 2 select indices, 2 select index equivalence classes, 1 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 23 treesize of output 15 [2018-03-29 20:46:45,606 INFO L267 ElimStorePlain]: Start of recursive call 5: End of recursive call: and 1 xjuncts. [2018-03-29 20:46:45,609 INFO L267 ElimStorePlain]: Start of recursive call 2: 3 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-03-29 20:46:45,617 INFO L267 ElimStorePlain]: Start of recursive call 1: 3 dim-0 vars, 1 dim-2 vars, End of recursive call: and 2 xjuncts. [2018-03-29 20:46:45,618 INFO L202 ElimStorePlain]: Needed 5 recursive calls to eliminate 4 variables, input treesize:67, output treesize:35 [2018-03-29 20:46:46,045 WARN L148 SmtUtils]: Spent 333ms on a formula simplification that was a NOOP. DAG size: 34 [2018-03-29 20:46:46,460 WARN L148 SmtUtils]: Spent 362ms on a formula simplification that was a NOOP. DAG size: 34 [2018-03-29 20:46:46,489 INFO L134 CoverageAnalysis]: Checked inductivity of 25 backedges. 0 proven. 25 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-03-29 20:46:46,510 INFO L320 seRefinementStrategy]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2018-03-29 20:46:46,511 INFO L335 seRefinementStrategy]: Number of different interpolants: perfect sequences [] imperfect sequences [22, 20] total 41 [2018-03-29 20:46:46,511 INFO L442 AbstractCegarLoop]: Interpolant automaton has 42 states [2018-03-29 20:46:46,511 INFO L132 InterpolantAutomaton]: Constructing interpolant automaton starting with 42 interpolants. [2018-03-29 20:46:46,512 INFO L133 InterpolantAutomaton]: CoverageRelationStatistics Valid=178, Invalid=1544, Unknown=0, NotChecked=0, Total=1722 [2018-03-29 20:46:46,512 INFO L87 Difference]: Start difference. First operand 79 states and 83 transitions. Second operand 42 states. [2018-03-29 20:46:48,863 WARN L151 SmtUtils]: Spent 1849ms on a formula simplification. DAG size of input: 72 DAG size of output 39 [2018-03-29 20:46:49,155 WARN L151 SmtUtils]: Spent 105ms on a formula simplification. DAG size of input: 80 DAG size of output 55 [2018-03-29 20:46:49,330 WARN L151 SmtUtils]: Spent 122ms on a formula simplification. DAG size of input: 74 DAG size of output 50 [2018-03-29 20:46:50,909 WARN L151 SmtUtils]: Spent 1523ms on a formula simplification. DAG size of input: 78 DAG size of output 56 [2018-03-29 20:46:51,072 WARN L151 SmtUtils]: Spent 111ms on a formula simplification. DAG size of input: 82 DAG size of output 60 [2018-03-29 20:46:58,900 WARN L151 SmtUtils]: Spent 7654ms on a formula simplification. DAG size of input: 67 DAG size of output 53 [2018-03-29 20:47:01,401 WARN L151 SmtUtils]: Spent 2401ms on a formula simplification. DAG size of input: 64 DAG size of output 50 [2018-03-29 20:47:01,572 WARN L151 SmtUtils]: Spent 100ms on a formula simplification. DAG size of input: 47 DAG size of output 39 [2018-03-29 20:47:06,688 WARN L151 SmtUtils]: Spent 4861ms on a formula simplification. DAG size of input: 60 DAG size of output 52 [2018-03-29 20:47:06,852 WARN L151 SmtUtils]: Spent 116ms on a formula simplification. DAG size of input: 60 DAG size of output 49 [2018-03-29 20:47:07,071 WARN L151 SmtUtils]: Spent 165ms on a formula simplification. DAG size of input: 58 DAG size of output 47 [2018-03-29 20:47:07,466 WARN L151 SmtUtils]: Spent 183ms on a formula simplification. DAG size of input: 56 DAG size of output 48 [2018-03-29 20:47:07,626 WARN L151 SmtUtils]: Spent 112ms on a formula simplification. DAG size of input: 65 DAG size of output 52 [2018-03-29 20:47:09,164 WARN L151 SmtUtils]: Spent 1469ms on a formula simplification. DAG size of input: 65 DAG size of output 54 [2018-03-29 20:47:11,296 WARN L151 SmtUtils]: Spent 2072ms on a formula simplification. DAG size of input: 58 DAG size of output 50 [2018-03-29 20:47:13,456 WARN L151 SmtUtils]: Spent 2079ms on a formula simplification. DAG size of input: 55 DAG size of output 47 [2018-03-29 20:47:17,671 WARN L151 SmtUtils]: Spent 4154ms on a formula simplification. DAG size of input: 72 DAG size of output 59 [2018-03-29 20:47:25,569 WARN L151 SmtUtils]: Spent 7833ms on a formula simplification. DAG size of input: 75 DAG size of output 58 [2018-03-29 20:47:27,746 WARN L151 SmtUtils]: Spent 136ms on a formula simplification. DAG size of input: 58 DAG size of output 46 [2018-03-29 20:47:28,005 WARN L151 SmtUtils]: Spent 119ms on a formula simplification. DAG size of input: 52 DAG size of output 40 [2018-03-29 20:47:28,228 WARN L151 SmtUtils]: Spent 150ms on a formula simplification. DAG size of input: 58 DAG size of output 46 [2018-03-29 20:47:32,613 WARN L151 SmtUtils]: Spent 4334ms on a formula simplification. DAG size of input: 65 DAG size of output 53 [2018-03-29 20:47:32,866 WARN L151 SmtUtils]: Spent 202ms on a formula simplification. DAG size of input: 65 DAG size of output 50 [2018-03-29 20:47:33,106 WARN L151 SmtUtils]: Spent 177ms on a formula simplification. DAG size of input: 63 DAG size of output 48 [2018-03-29 20:47:33,317 WARN L151 SmtUtils]: Spent 154ms on a formula simplification. DAG size of input: 61 DAG size of output 49 [2018-03-29 20:47:33,512 WARN L151 SmtUtils]: Spent 132ms on a formula simplification. DAG size of input: 70 DAG size of output 52 [2018-03-29 20:47:33,693 WARN L151 SmtUtils]: Spent 120ms on a formula simplification. DAG size of input: 70 DAG size of output 54 [2018-03-29 20:47:33,886 WARN L151 SmtUtils]: Spent 121ms on a formula simplification. DAG size of input: 63 DAG size of output 51 [2018-03-29 20:47:34,132 WARN L151 SmtUtils]: Spent 119ms on a formula simplification. DAG size of input: 60 DAG size of output 48 [2018-03-29 20:47:39,534 WARN L151 SmtUtils]: Spent 5351ms on a formula simplification. DAG size of input: 77 DAG size of output 60 [2018-03-29 20:47:39,548 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-03-29 20:47:39,548 INFO L93 Difference]: Finished difference Result 105 states and 110 transitions. [2018-03-29 20:47:39,549 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 45 states. [2018-03-29 20:47:39,549 INFO L78 Accepts]: Start accepts. Automaton has 42 states. Word has length 69 [2018-03-29 20:47:39,549 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-03-29 20:47:39,549 INFO L225 Difference]: With dead ends: 105 [2018-03-29 20:47:39,549 INFO L226 Difference]: Without dead ends: 0 [2018-03-29 20:47:39,551 INFO L567 BasicCegarLoop]: 0 DeclaredPredicates, 178 GetRequests, 96 SyntacticMatches, 1 SemanticMatches, 81 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 971 ImplicationChecksByTransitivity, 56.5s TimeCoverageRelationStatistics Valid=1276, Invalid=5529, Unknown=1, NotChecked=0, Total=6806 [2018-03-29 20:47:39,551 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2018-03-29 20:47:39,552 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2018-03-29 20:47:39,552 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 0 states. [2018-03-29 20:47:39,552 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2018-03-29 20:47:39,552 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 69 [2018-03-29 20:47:39,552 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-03-29 20:47:39,552 INFO L459 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2018-03-29 20:47:39,552 INFO L460 AbstractCegarLoop]: Interpolant automaton has 42 states. [2018-03-29 20:47:39,552 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2018-03-29 20:47:39,552 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2018-03-29 20:47:39,556 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends 0 states and 0 transitions. [2018-03-29 20:47:39,920 WARN L151 SmtUtils]: Spent 361ms on a formula simplification. DAG size of input: 265 DAG size of output 258 Received shutdown request... [2018-03-29 20:48:58,270 INFO L256 ToolchainWalker]: Toolchain cancelled while executing plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction. Reason: Timeout or Toolchain cancelled by user [2018-03-29 20:48:58,271 INFO L168 Benchmark]: Toolchain (without parser) took 157889.40 ms. Allocated memory was 304.6 MB in the beginning and 614.5 MB in the end (delta: 309.9 MB). Free memory was 241.9 MB in the beginning and 388.8 MB in the end (delta: -146.9 MB). Peak memory consumption was 260.5 MB. Max. memory is 5.3 GB. [2018-03-29 20:48:58,272 INFO L168 Benchmark]: CDTParser took 0.20 ms. Allocated memory is still 304.6 MB. Free memory is still 267.1 MB. There was no memory consumed. Max. memory is 5.3 GB. [2018-03-29 20:48:58,272 INFO L168 Benchmark]: CACSL2BoogieTranslator took 342.77 ms. Allocated memory is still 304.6 MB. Free memory was 241.9 MB in the beginning and 217.8 MB in the end (delta: 24.0 MB). Peak memory consumption was 24.0 MB. Max. memory is 5.3 GB. [2018-03-29 20:48:58,272 INFO L168 Benchmark]: Boogie Preprocessor took 52.26 ms. Allocated memory is still 304.6 MB. Free memory was 217.8 MB in the beginning and 215.9 MB in the end (delta: 2.0 MB). Peak memory consumption was 2.0 MB. Max. memory is 5.3 GB. [2018-03-29 20:48:58,272 INFO L168 Benchmark]: RCFGBuilder took 586.75 ms. Allocated memory was 304.6 MB in the beginning and 462.9 MB in the end (delta: 158.3 MB). Free memory was 215.9 MB in the beginning and 396.0 MB in the end (delta: -180.2 MB). Peak memory consumption was 22.3 MB. Max. memory is 5.3 GB. [2018-03-29 20:48:58,273 INFO L168 Benchmark]: TraceAbstraction took 156901.20 ms. Allocated memory was 462.9 MB in the beginning and 614.5 MB in the end (delta: 151.5 MB). Free memory was 396.0 MB in the beginning and 388.8 MB in the end (delta: 7.2 MB). Peak memory consumption was 256.4 MB. Max. memory is 5.3 GB. [2018-03-29 20:48:58,274 INFO L344 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.20 ms. Allocated memory is still 304.6 MB. Free memory is still 267.1 MB. There was no memory consumed. Max. memory is 5.3 GB. * CACSL2BoogieTranslator took 342.77 ms. Allocated memory is still 304.6 MB. Free memory was 241.9 MB in the beginning and 217.8 MB in the end (delta: 24.0 MB). Peak memory consumption was 24.0 MB. Max. memory is 5.3 GB. * Boogie Preprocessor took 52.26 ms. Allocated memory is still 304.6 MB. Free memory was 217.8 MB in the beginning and 215.9 MB in the end (delta: 2.0 MB). Peak memory consumption was 2.0 MB. Max. memory is 5.3 GB. * RCFGBuilder took 586.75 ms. Allocated memory was 304.6 MB in the beginning and 462.9 MB in the end (delta: 158.3 MB). Free memory was 215.9 MB in the beginning and 396.0 MB in the end (delta: -180.2 MB). Peak memory consumption was 22.3 MB. Max. memory is 5.3 GB. * TraceAbstraction took 156901.20 ms. Allocated memory was 462.9 MB in the beginning and 614.5 MB in the end (delta: 151.5 MB). Free memory was 396.0 MB in the beginning and 388.8 MB in the end (delta: 7.2 MB). Peak memory consumption was 256.4 MB. Max. memory is 5.3 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - PositiveResult [Line: 550]: pointer dereference always succeeds For all program executions holds that pointer dereference always succeeds at this location - PositiveResult [Line: 545]: pointer dereference always succeeds For all program executions holds that pointer dereference always succeeds at this location - PositiveResult [Line: 544]: pointer dereference always succeeds For all program executions holds that pointer dereference always succeeds at this location - PositiveResult [Line: 544]: pointer dereference always succeeds For all program executions holds that pointer dereference always succeeds at this location - PositiveResult [Line: 550]: pointer dereference always succeeds For all program executions holds that pointer dereference always succeeds at this location - PositiveResult [Line: 545]: pointer dereference always succeeds For all program executions holds that pointer dereference always succeeds at this location - PositiveResult [Line: 545]: pointer dereference always succeeds For all program executions holds that pointer dereference always succeeds at this location - PositiveResult [Line: 544]: pointer dereference always succeeds For all program executions holds that pointer dereference always succeeds at this location - PositiveResult [Line: 544]: pointer dereference always succeeds For all program executions holds that pointer dereference always succeeds at this location - PositiveResult [Line: 545]: pointer dereference always succeeds For all program executions holds that pointer dereference always succeeds at this location - PositiveResult [Line: 565]: pointer dereference always succeeds For all program executions holds that pointer dereference always succeeds at this location - PositiveResult [Line: 564]: pointer dereference always succeeds For all program executions holds that pointer dereference always succeeds at this location - PositiveResult [Line: 565]: pointer dereference always succeeds For all program executions holds that pointer dereference always succeeds at this location - PositiveResult [Line: 553]: all allocated memory was freed For all program executions holds that all allocated memory was freed at this location - PositiveResult [Line: 564]: pointer dereference always succeeds For all program executions holds that pointer dereference always succeeds at this location - TimeoutResult: Timeout (de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction) Toolchain cancelled while SimplifyDDAWithTimeout was simplifying term of DAG size 301. RESULT: Ultimate could not prove your program: Timeout Written .csv to /storage/ultimate/releaseScripts/default/UAutomizer-linux/../../../releaseScripts/default/UAutomizer-linux/csv/subseq-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_20-48-58-282.csv Completed graceful shutdown