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/cstrncpy-alloca_true-valid-memsafety_true-termination.i -------------------------------------------------------------------------------- This is Ultimate 0.1.23-4cf2d92 [2018-03-28 12:09:47,199 INFO L170 SettingsManager]: Resetting all preferences to default values... [2018-03-28 12:09:47,200 INFO L174 SettingsManager]: Resetting UltimateCore preferences to default values [2018-03-28 12:09:47,213 INFO L177 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... 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[2018-03-28 12:09:47,241 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 [2018-03-28 12:09:47,265 INFO L110 SettingsManager]: Loading preferences was successful [2018-03-28 12:09:47,265 INFO L112 SettingsManager]: Preferences different from defaults after loading the file: [2018-03-28 12:09:47,265 INFO L131 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2018-03-28 12:09:47,265 INFO L133 SettingsManager]: * ultimate.logging.details=de.uni_freiburg.informatik.ultimate.plugins.icfgtransformation=DEBUG; [2018-03-28 12:09:47,266 INFO L131 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2018-03-28 12:09:47,266 INFO L133 SettingsManager]: * to procedures, called more than once=true [2018-03-28 12:09:47,266 INFO L131 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2018-03-28 12:09:47,267 INFO L133 SettingsManager]: * Abstract domain for RCFG-of-the-future=VPDomain [2018-03-28 12:09:47,267 INFO L133 SettingsManager]: * Use the RCFG-of-the-future interface=true [2018-03-28 12:09:47,267 INFO L131 SettingsManager]: Preferences of LTL2Aut differ from their defaults: [2018-03-28 12:09:47,267 INFO L133 SettingsManager]: * Property to check=[] a a: x > 42 [2018-03-28 12:09:47,267 INFO L131 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2018-03-28 12:09:47,268 INFO L133 SettingsManager]: * sizeof long=4 [2018-03-28 12:09:47,268 INFO L133 SettingsManager]: * Check unreachability of error function in SV-COMP mode=false [2018-03-28 12:09:47,268 INFO L133 SettingsManager]: * Overapproximate operations on floating types=true [2018-03-28 12:09:47,268 INFO L133 SettingsManager]: * sizeof POINTER=4 [2018-03-28 12:09:47,268 INFO L133 SettingsManager]: * Check division by zero=IGNORE [2018-03-28 12:09:47,268 INFO L133 SettingsManager]: * Check for the main procedure if all allocated memory was freed=true [2018-03-28 12:09:47,269 INFO L133 SettingsManager]: * SV-COMP memtrack compatibility mode=true [2018-03-28 12:09:47,269 INFO L133 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2018-03-28 12:09:47,269 INFO L133 SettingsManager]: * sizeof long double=12 [2018-03-28 12:09:47,269 INFO L131 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2018-03-28 12:09:47,269 INFO L133 SettingsManager]: * Size of a code block=SingleStatement [2018-03-28 12:09:47,269 INFO L133 SettingsManager]: * Add additional assume for each assert=false [2018-03-28 12:09:47,270 INFO L133 SettingsManager]: * SMT solver=External_DefaultMode [2018-03-28 12:09:47,270 INFO L133 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2018-03-28 12:09:47,270 INFO L131 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2018-03-28 12:09:47,270 INFO L133 SettingsManager]: * Interpolant automaton=TWOTRACK [2018-03-28 12:09:47,270 INFO L133 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2018-03-28 12:09:47,270 INFO L133 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2018-03-28 12:09:47,271 INFO L133 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2018-03-28 12:09:47,271 INFO L133 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2018-03-28 12:09:47,271 INFO L133 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2018-03-28 12:09:47,272 INFO L131 SettingsManager]: Preferences of IcfgTransformer differ from their defaults: [2018-03-28 12:09:47,272 INFO L133 SettingsManager]: * TransformationType=HEAP_SEPARATOR [2018-03-28 12:09:47,272 INFO L131 SettingsManager]: Preferences of Boogie Printer differ from their defaults: [2018-03-28 12:09:47,272 INFO L133 SettingsManager]: * Dump path:=C:\Users\alex\AppData\Local\Temp\ [2018-03-28 12:09:47,304 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2018-03-28 12:09:47,314 INFO L266 ainManager$Toolchain]: [Toolchain 1]: Parser(s) successfully (re)initialized [2018-03-28 12:09:47,317 INFO L222 ainManager$Toolchain]: [Toolchain 1]: Toolchain data selected. [2018-03-28 12:09:47,318 INFO L271 PluginConnector]: Initializing CDTParser... [2018-03-28 12:09:47,318 INFO L276 PluginConnector]: CDTParser initialized [2018-03-28 12:09:47,319 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/array-memsafety/cstrncpy-alloca_true-valid-memsafety_true-termination.i [2018-03-28 12:09:47,619 INFO L228 CDTParser]: Created temporary CDT project at /storage/ultimate/releaseScripts/default/UAutomizer-linux/data/FLAG6d49e583d [2018-03-28 12:09:47,796 INFO L291 CDTParser]: IsIndexed: true [2018-03-28 12:09:47,796 INFO L292 CDTParser]: Found 1 translation units. [2018-03-28 12:09:47,797 INFO L171 CDTParser]: Scanning cstrncpy-alloca_true-valid-memsafety_true-termination.i [2018-03-28 12:09:47,807 INFO L210 ultiparseSymbolTable]: Include resolver: [2018-03-28 12:09:47,807 INFO L215 ultiparseSymbolTable]: [2018-03-28 12:09:47,807 INFO L218 ultiparseSymbolTable]: Function table: [2018-03-28 12:09:47,807 INFO L221 ultiparseSymbolTable]: Function definition of __U_MULTI_fcstrncpy_alloca_true_valid_memsafety_true_termination_i__ ('') in cstrncpy-alloca_true-valid-memsafety_true-termination.i [2018-03-28 12:09:47,808 INFO L221 ultiparseSymbolTable]: Function definition of __U_MULTI_fcstrncpy_alloca_true_valid_memsafety_true_termination_i____bswap_32 ('__bswap_32') in cstrncpy-alloca_true-valid-memsafety_true-termination.i [2018-03-28 12:09:47,808 INFO L221 ultiparseSymbolTable]: Function definition of null ('main') in cstrncpy-alloca_true-valid-memsafety_true-termination.i [2018-03-28 12:09:47,808 INFO L221 ultiparseSymbolTable]: Function definition 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cstrncpy-alloca_true-valid-memsafety_true-termination.i [2018-03-28 12:09:47,809 INFO L230 ultiparseSymbolTable]: Global variable declaration of __U_MULTI_fcstrncpy_alloca_true_valid_memsafety_true_termination_i____suseconds_t in cstrncpy-alloca_true-valid-memsafety_true-termination.i [2018-03-28 12:09:47,809 INFO L230 ultiparseSymbolTable]: Global variable declaration of __U_MULTI_fcstrncpy_alloca_true_valid_memsafety_true_termination_i__caddr_t in cstrncpy-alloca_true-valid-memsafety_true-termination.i [2018-03-28 12:09:47,809 INFO L230 ultiparseSymbolTable]: Global variable declaration of __U_MULTI_fcstrncpy_alloca_true_valid_memsafety_true_termination_i__pthread_mutexattr_t in cstrncpy-alloca_true-valid-memsafety_true-termination.i [2018-03-28 12:09:47,809 INFO L230 ultiparseSymbolTable]: Global variable declaration of __U_MULTI_fcstrncpy_alloca_true_valid_memsafety_true_termination_i__u_int in cstrncpy-alloca_true-valid-memsafety_true-termination.i [2018-03-28 12:09:47,809 INFO L230 ultiparseSymbolTable]: Global variable declaration of __U_MULTI_fcstrncpy_alloca_true_valid_memsafety_true_termination_i____rlim64_t in cstrncpy-alloca_true-valid-memsafety_true-termination.i [2018-03-28 12:09:47,809 INFO L230 ultiparseSymbolTable]: Global variable declaration of __U_MULTI_fcstrncpy_alloca_true_valid_memsafety_true_termination_i____fsfilcnt_t in cstrncpy-alloca_true-valid-memsafety_true-termination.i [2018-03-28 12:09:47,809 INFO L230 ultiparseSymbolTable]: Global variable declaration of __U_MULTI_fcstrncpy_alloca_true_valid_memsafety_true_termination_i__pid_t in cstrncpy-alloca_true-valid-memsafety_true-termination.i [2018-03-28 12:09:47,810 INFO L230 ultiparseSymbolTable]: Global variable declaration of __U_MULTI_fcstrncpy_alloca_true_valid_memsafety_true_termination_i__int32_t in cstrncpy-alloca_true-valid-memsafety_true-termination.i [2018-03-28 12:09:47,810 INFO L230 ultiparseSymbolTable]: Global variable declaration of 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cstrncpy-alloca_true-valid-memsafety_true-termination.i [2018-03-28 12:09:47,810 INFO L230 ultiparseSymbolTable]: Global variable declaration of __U_MULTI_fcstrncpy_alloca_true_valid_memsafety_true_termination_i____blkcnt64_t in cstrncpy-alloca_true-valid-memsafety_true-termination.i [2018-03-28 12:09:47,810 INFO L230 ultiparseSymbolTable]: Global variable declaration of __U_MULTI_fcstrncpy_alloca_true_valid_memsafety_true_termination_i____id_t in cstrncpy-alloca_true-valid-memsafety_true-termination.i [2018-03-28 12:09:47,810 INFO L230 ultiparseSymbolTable]: Global variable declaration of __U_MULTI_fcstrncpy_alloca_true_valid_memsafety_true_termination_i____int32_t in cstrncpy-alloca_true-valid-memsafety_true-termination.i [2018-03-28 12:09:47,810 INFO L230 ultiparseSymbolTable]: Global variable declaration of __U_MULTI_fcstrncpy_alloca_true_valid_memsafety_true_termination_i____caddr_t in cstrncpy-alloca_true-valid-memsafety_true-termination.i [2018-03-28 12:09:47,810 INFO L230 ultiparseSymbolTable]: Global variable declaration of __U_MULTI_fcstrncpy_alloca_true_valid_memsafety_true_termination_i____int8_t in cstrncpy-alloca_true-valid-memsafety_true-termination.i [2018-03-28 12:09:47,810 INFO L230 ultiparseSymbolTable]: Global variable declaration of __U_MULTI_fcstrncpy_alloca_true_valid_memsafety_true_termination_i____ssize_t in cstrncpy-alloca_true-valid-memsafety_true-termination.i [2018-03-28 12:09:47,810 INFO L230 ultiparseSymbolTable]: Global variable declaration of __U_MULTI_fcstrncpy_alloca_true_valid_memsafety_true_termination_i__timer_t in cstrncpy-alloca_true-valid-memsafety_true-termination.i [2018-03-28 12:09:47,811 INFO L230 ultiparseSymbolTable]: Global variable declaration of __U_MULTI_fcstrncpy_alloca_true_valid_memsafety_true_termination_i__mode_t in cstrncpy-alloca_true-valid-memsafety_true-termination.i [2018-03-28 12:09:47,811 INFO L230 ultiparseSymbolTable]: Global variable declaration of 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cstrncpy-alloca_true-valid-memsafety_true-termination.i [2018-03-28 12:09:47,811 INFO L230 ultiparseSymbolTable]: Global variable declaration of __U_MULTI_fcstrncpy_alloca_true_valid_memsafety_true_termination_i__u_quad_t in cstrncpy-alloca_true-valid-memsafety_true-termination.i [2018-03-28 12:09:47,811 INFO L230 ultiparseSymbolTable]: Global variable declaration of __U_MULTI_fcstrncpy_alloca_true_valid_memsafety_true_termination_i____uid_t in cstrncpy-alloca_true-valid-memsafety_true-termination.i [2018-03-28 12:09:47,811 INFO L230 ultiparseSymbolTable]: Global variable declaration of __U_MULTI_fcstrncpy_alloca_true_valid_memsafety_true_termination_i____fsword_t in cstrncpy-alloca_true-valid-memsafety_true-termination.i [2018-03-28 12:09:47,811 INFO L230 ultiparseSymbolTable]: Global variable declaration of __U_MULTI_fcstrncpy_alloca_true_valid_memsafety_true_termination_i____blksize_t in cstrncpy-alloca_true-valid-memsafety_true-termination.i [2018-03-28 12:09:47,811 INFO L230 ultiparseSymbolTable]: Global variable declaration of __U_MULTI_fcstrncpy_alloca_true_valid_memsafety_true_termination_i__sigset_t in cstrncpy-alloca_true-valid-memsafety_true-termination.i [2018-03-28 12:09:47,811 INFO L230 ultiparseSymbolTable]: Global variable declaration of __U_MULTI_fcstrncpy_alloca_true_valid_memsafety_true_termination_i____qaddr_t in cstrncpy-alloca_true-valid-memsafety_true-termination.i [2018-03-28 12:09:47,811 INFO L230 ultiparseSymbolTable]: Global variable declaration of __U_MULTI_fcstrncpy_alloca_true_valid_memsafety_true_termination_i____fsfilcnt64_t in cstrncpy-alloca_true-valid-memsafety_true-termination.i [2018-03-28 12:09:47,811 INFO L230 ultiparseSymbolTable]: Global variable declaration of __U_MULTI_fcstrncpy_alloca_true_valid_memsafety_true_termination_i__u_int64_t in cstrncpy-alloca_true-valid-memsafety_true-termination.i [2018-03-28 12:09:47,812 INFO L230 ultiparseSymbolTable]: Global variable declaration of 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ultiparseSymbolTable]: Global variable declaration of __U_MULTI_fcstrncpy_alloca_true_valid_memsafety_true_termination_i__time_t in cstrncpy-alloca_true-valid-memsafety_true-termination.i [2018-03-28 12:09:47,812 INFO L230 ultiparseSymbolTable]: Global variable declaration of __U_MULTI_fcstrncpy_alloca_true_valid_memsafety_true_termination_i__register_t in cstrncpy-alloca_true-valid-memsafety_true-termination.i [2018-03-28 12:09:47,812 INFO L230 ultiparseSymbolTable]: Global variable declaration of __U_MULTI_fcstrncpy_alloca_true_valid_memsafety_true_termination_i__pthread_key_t in cstrncpy-alloca_true-valid-memsafety_true-termination.i [2018-03-28 12:09:47,812 INFO L230 ultiparseSymbolTable]: Global variable declaration of __U_MULTI_fcstrncpy_alloca_true_valid_memsafety_true_termination_i__pthread_barrierattr_t in cstrncpy-alloca_true-valid-memsafety_true-termination.i [2018-03-28 12:09:47,813 INFO L230 ultiparseSymbolTable]: Global variable declaration of __U_MULTI_fcstrncpy_alloca_true_valid_memsafety_true_termination_i____fsblkcnt_t in cstrncpy-alloca_true-valid-memsafety_true-termination.i [2018-03-28 12:09:47,813 INFO L230 ultiparseSymbolTable]: Global variable declaration of __U_MULTI_fcstrncpy_alloca_true_valid_memsafety_true_termination_i____syscall_slong_t in cstrncpy-alloca_true-valid-memsafety_true-termination.i [2018-03-28 12:09:47,813 INFO L230 ultiparseSymbolTable]: Global variable declaration of __U_MULTI_fcstrncpy_alloca_true_valid_memsafety_true_termination_i____loff_t in cstrncpy-alloca_true-valid-memsafety_true-termination.i [2018-03-28 12:09:47,813 INFO L230 ultiparseSymbolTable]: Global variable declaration of __U_MULTI_fcstrncpy_alloca_true_valid_memsafety_true_termination_i__int64_t in cstrncpy-alloca_true-valid-memsafety_true-termination.i [2018-03-28 12:09:47,813 INFO L230 ultiparseSymbolTable]: Global variable declaration of __U_MULTI_fcstrncpy_alloca_true_valid_memsafety_true_termination_i__fd_mask in cstrncpy-alloca_true-valid-memsafety_true-termination.i [2018-03-28 12:09:47,813 INFO L230 ultiparseSymbolTable]: Global variable declaration of __U_MULTI_fcstrncpy_alloca_true_valid_memsafety_true_termination_i__suseconds_t in cstrncpy-alloca_true-valid-memsafety_true-termination.i [2018-03-28 12:09:47,813 INFO L230 ultiparseSymbolTable]: Global variable declaration of __U_MULTI_fcstrncpy_alloca_true_valid_memsafety_true_termination_i__pthread_cond_t in cstrncpy-alloca_true-valid-memsafety_true-termination.i [2018-03-28 12:09:47,813 INFO L230 ultiparseSymbolTable]: Global variable declaration of __U_MULTI_fcstrncpy_alloca_true_valid_memsafety_true_termination_i__fsid_t in cstrncpy-alloca_true-valid-memsafety_true-termination.i [2018-03-28 12:09:47,813 INFO L230 ultiparseSymbolTable]: Global variable declaration of __U_MULTI_fcstrncpy_alloca_true_valid_memsafety_true_termination_i____WAIT_STATUS in cstrncpy-alloca_true-valid-memsafety_true-termination.i [2018-03-28 12:09:47,814 INFO L230 ultiparseSymbolTable]: Global variable declaration of __U_MULTI_fcstrncpy_alloca_true_valid_memsafety_true_termination_i__u_int16_t in cstrncpy-alloca_true-valid-memsafety_true-termination.i [2018-03-28 12:09:47,814 INFO L230 ultiparseSymbolTable]: Global variable declaration of __U_MULTI_fcstrncpy_alloca_true_valid_memsafety_true_termination_i__ushort in cstrncpy-alloca_true-valid-memsafety_true-termination.i [2018-03-28 12:09:47,814 INFO L230 ultiparseSymbolTable]: Global variable declaration of __U_MULTI_fcstrncpy_alloca_true_valid_memsafety_true_termination_i____blkcnt_t in cstrncpy-alloca_true-valid-memsafety_true-termination.i [2018-03-28 12:09:47,814 INFO L230 ultiparseSymbolTable]: Global variable declaration of __U_MULTI_fcstrncpy_alloca_true_valid_memsafety_true_termination_i__pthread_barrier_t in cstrncpy-alloca_true-valid-memsafety_true-termination.i [2018-03-28 12:09:47,814 INFO L230 ultiparseSymbolTable]: Global variable declaration of __U_MULTI_fcstrncpy_alloca_true_valid_memsafety_true_termination_i____clock_t in cstrncpy-alloca_true-valid-memsafety_true-termination.i [2018-03-28 12:09:47,814 INFO L230 ultiparseSymbolTable]: Global variable declaration of __U_MULTI_fcstrncpy_alloca_true_valid_memsafety_true_termination_i____u_quad_t in cstrncpy-alloca_true-valid-memsafety_true-termination.i [2018-03-28 12:09:47,814 INFO L230 ultiparseSymbolTable]: Global variable declaration of __U_MULTI_fcstrncpy_alloca_true_valid_memsafety_true_termination_i____ino64_t in cstrncpy-alloca_true-valid-memsafety_true-termination.i [2018-03-28 12:09:47,814 INFO L230 ultiparseSymbolTable]: Global variable declaration of __U_MULTI_fcstrncpy_alloca_true_valid_memsafety_true_termination_i____daddr_t in cstrncpy-alloca_true-valid-memsafety_true-termination.i [2018-03-28 12:09:47,815 INFO L230 ultiparseSymbolTable]: Global variable declaration of __U_MULTI_fcstrncpy_alloca_true_valid_memsafety_true_termination_i____key_t in cstrncpy-alloca_true-valid-memsafety_true-termination.i [2018-03-28 12:09:47,815 INFO L230 ultiparseSymbolTable]: Global variable declaration of __U_MULTI_fcstrncpy_alloca_true_valid_memsafety_true_termination_i__pthread_spinlock_t in cstrncpy-alloca_true-valid-memsafety_true-termination.i [2018-03-28 12:09:47,815 INFO L230 ultiparseSymbolTable]: Global variable declaration of __U_MULTI_fcstrncpy_alloca_true_valid_memsafety_true_termination_i____uint8_t in cstrncpy-alloca_true-valid-memsafety_true-termination.i [2018-03-28 12:09:47,815 INFO L230 ultiparseSymbolTable]: Global variable declaration of __U_MULTI_fcstrncpy_alloca_true_valid_memsafety_true_termination_i____gid_t in cstrncpy-alloca_true-valid-memsafety_true-termination.i [2018-03-28 12:09:47,815 INFO L230 ultiparseSymbolTable]: Global variable declaration of __U_MULTI_fcstrncpy_alloca_true_valid_memsafety_true_termination_i____quad_t in cstrncpy-alloca_true-valid-memsafety_true-termination.i [2018-03-28 12:09:47,815 INFO L230 ultiparseSymbolTable]: Global variable declaration of __U_MULTI_fcstrncpy_alloca_true_valid_memsafety_true_termination_i____ino_t in cstrncpy-alloca_true-valid-memsafety_true-termination.i [2018-03-28 12:09:47,815 INFO L230 ultiparseSymbolTable]: Global variable declaration of __U_MULTI_fcstrncpy_alloca_true_valid_memsafety_true_termination_i____sigset_t in cstrncpy-alloca_true-valid-memsafety_true-termination.i [2018-03-28 12:09:47,815 INFO L230 ultiparseSymbolTable]: Global variable declaration of __U_MULTI_fcstrncpy_alloca_true_valid_memsafety_true_termination_i____pid_t in cstrncpy-alloca_true-valid-memsafety_true-termination.i [2018-03-28 12:09:47,815 INFO L230 ultiparseSymbolTable]: Global variable declaration of __U_MULTI_fcstrncpy_alloca_true_valid_memsafety_true_termination_i__pthread_condattr_t in cstrncpy-alloca_true-valid-memsafety_true-termination.i [2018-03-28 12:09:47,816 INFO L230 ultiparseSymbolTable]: Global variable declaration of __U_MULTI_fcstrncpy_alloca_true_valid_memsafety_true_termination_i__clock_t in cstrncpy-alloca_true-valid-memsafety_true-termination.i [2018-03-28 12:09:47,816 INFO L230 ultiparseSymbolTable]: Global variable declaration of __U_MULTI_fcstrncpy_alloca_true_valid_memsafety_true_termination_i__u_int8_t in cstrncpy-alloca_true-valid-memsafety_true-termination.i [2018-03-28 12:09:47,816 INFO L230 ultiparseSymbolTable]: Global variable declaration of __U_MULTI_fcstrncpy_alloca_true_valid_memsafety_true_termination_i____uint16_t in cstrncpy-alloca_true-valid-memsafety_true-termination.i [2018-03-28 12:09:47,816 INFO L230 ultiparseSymbolTable]: Global variable declaration of __U_MULTI_fcstrncpy_alloca_true_valid_memsafety_true_termination_i__uint in cstrncpy-alloca_true-valid-memsafety_true-termination.i [2018-03-28 12:09:47,816 INFO L230 ultiparseSymbolTable]: Global variable declaration of __U_MULTI_fcstrncpy_alloca_true_valid_memsafety_true_termination_i__daddr_t in cstrncpy-alloca_true-valid-memsafety_true-termination.i [2018-03-28 12:09:47,816 INFO L230 ultiparseSymbolTable]: Global variable declaration of __U_MULTI_fcstrncpy_alloca_true_valid_memsafety_true_termination_i____fsid_t in cstrncpy-alloca_true-valid-memsafety_true-termination.i [2018-03-28 12:09:47,816 INFO L230 ultiparseSymbolTable]: Global variable declaration of __U_MULTI_fcstrncpy_alloca_true_valid_memsafety_true_termination_i__nlink_t in cstrncpy-alloca_true-valid-memsafety_true-termination.i [2018-03-28 12:09:47,816 INFO L230 ultiparseSymbolTable]: Global variable declaration of __U_MULTI_fcstrncpy_alloca_true_valid_memsafety_true_termination_i__pthread_t in cstrncpy-alloca_true-valid-memsafety_true-termination.i [2018-03-28 12:09:47,816 INFO L230 ultiparseSymbolTable]: Global variable declaration of __U_MULTI_fcstrncpy_alloca_true_valid_memsafety_true_termination_i____off_t in cstrncpy-alloca_true-valid-memsafety_true-termination.i [2018-03-28 12:09:47,817 INFO L230 ultiparseSymbolTable]: Global variable declaration of __U_MULTI_fcstrncpy_alloca_true_valid_memsafety_true_termination_i__pthread_rwlockattr_t in cstrncpy-alloca_true-valid-memsafety_true-termination.i [2018-03-28 12:09:47,817 INFO L230 ultiparseSymbolTable]: Global variable declaration of __U_MULTI_fcstrncpy_alloca_true_valid_memsafety_true_termination_i__u_long in cstrncpy-alloca_true-valid-memsafety_true-termination.i [2018-03-28 12:09:47,817 INFO L230 ultiparseSymbolTable]: Global variable declaration of __U_MULTI_fcstrncpy_alloca_true_valid_memsafety_true_termination_i__clockid_t in cstrncpy-alloca_true-valid-memsafety_true-termination.i [2018-03-28 12:09:47,817 INFO L230 ultiparseSymbolTable]: Global variable declaration of __U_MULTI_fcstrncpy_alloca_true_valid_memsafety_true_termination_i____fd_mask in cstrncpy-alloca_true-valid-memsafety_true-termination.i [2018-03-28 12:09:47,817 INFO L230 ultiparseSymbolTable]: Global variable declaration of __U_MULTI_fcstrncpy_alloca_true_valid_memsafety_true_termination_i____sig_atomic_t in cstrncpy-alloca_true-valid-memsafety_true-termination.i [2018-03-28 12:09:47,817 INFO L230 ultiparseSymbolTable]: Global variable declaration of __U_MULTI_fcstrncpy_alloca_true_valid_memsafety_true_termination_i____fsblkcnt64_t in cstrncpy-alloca_true-valid-memsafety_true-termination.i [2018-03-28 12:09:47,817 INFO L230 ultiparseSymbolTable]: Global variable declaration of __U_MULTI_fcstrncpy_alloca_true_valid_memsafety_true_termination_i__u_int32_t in cstrncpy-alloca_true-valid-memsafety_true-termination.i [2018-03-28 12:09:47,817 INFO L230 ultiparseSymbolTable]: Global variable declaration of __U_MULTI_fcstrncpy_alloca_true_valid_memsafety_true_termination_i__ulong in cstrncpy-alloca_true-valid-memsafety_true-termination.i [2018-03-28 12:09:47,818 INFO L230 ultiparseSymbolTable]: Global variable declaration of __U_MULTI_fcstrncpy_alloca_true_valid_memsafety_true_termination_i__pthread_once_t in cstrncpy-alloca_true-valid-memsafety_true-termination.i [2018-03-28 12:09:47,818 INFO L230 ultiparseSymbolTable]: Global variable declaration of __U_MULTI_fcstrncpy_alloca_true_valid_memsafety_true_termination_i____u_long in cstrncpy-alloca_true-valid-memsafety_true-termination.i [2018-03-28 12:09:47,818 INFO L230 ultiparseSymbolTable]: Global variable declaration of __U_MULTI_fcstrncpy_alloca_true_valid_memsafety_true_termination_i__blksize_t in cstrncpy-alloca_true-valid-memsafety_true-termination.i [2018-03-28 12:09:47,818 INFO L230 ultiparseSymbolTable]: Global variable declaration of __U_MULTI_fcstrncpy_alloca_true_valid_memsafety_true_termination_i____u_char in cstrncpy-alloca_true-valid-memsafety_true-termination.i [2018-03-28 12:09:47,818 INFO L230 ultiparseSymbolTable]: Global variable declaration of __U_MULTI_fcstrncpy_alloca_true_valid_memsafety_true_termination_i____off64_t in cstrncpy-alloca_true-valid-memsafety_true-termination.i [2018-03-28 12:09:47,818 INFO L230 ultiparseSymbolTable]: Global variable declaration of __U_MULTI_fcstrncpy_alloca_true_valid_memsafety_true_termination_i__u_short in cstrncpy-alloca_true-valid-memsafety_true-termination.i [2018-03-28 12:09:47,818 INFO L230 ultiparseSymbolTable]: Global variable declaration of __U_MULTI_fcstrncpy_alloca_true_valid_memsafety_true_termination_i____uint32_t in cstrncpy-alloca_true-valid-memsafety_true-termination.i [2018-03-28 12:09:47,818 INFO L230 ultiparseSymbolTable]: Global variable declaration of __U_MULTI_fcstrncpy_alloca_true_valid_memsafety_true_termination_i__wchar_t in cstrncpy-alloca_true-valid-memsafety_true-termination.i [2018-03-28 12:09:47,819 INFO L230 ultiparseSymbolTable]: Global variable declaration of __U_MULTI_fcstrncpy_alloca_true_valid_memsafety_true_termination_i____int16_t in cstrncpy-alloca_true-valid-memsafety_true-termination.i [2018-03-28 12:09:47,819 INFO L230 ultiparseSymbolTable]: Global variable declaration of __U_MULTI_fcstrncpy_alloca_true_valid_memsafety_true_termination_i__div_t in cstrncpy-alloca_true-valid-memsafety_true-termination.i [2018-03-28 12:09:47,819 INFO L230 ultiparseSymbolTable]: Global variable declaration of __U_MULTI_fcstrncpy_alloca_true_valid_memsafety_true_termination_i____intptr_t in cstrncpy-alloca_true-valid-memsafety_true-termination.i [2018-03-28 12:09:47,819 INFO L230 ultiparseSymbolTable]: Global variable declaration of __U_MULTI_fcstrncpy_alloca_true_valid_memsafety_true_termination_i____clockid_t in cstrncpy-alloca_true-valid-memsafety_true-termination.i [2018-03-28 12:09:47,819 INFO L230 ultiparseSymbolTable]: Global variable declaration of __U_MULTI_fcstrncpy_alloca_true_valid_memsafety_true_termination_i__pthread_attr_t in cstrncpy-alloca_true-valid-memsafety_true-termination.i [2018-03-28 12:09:47,819 INFO L230 ultiparseSymbolTable]: Global variable declaration of __U_MULTI_fcstrncpy_alloca_true_valid_memsafety_true_termination_i__blkcnt_t in cstrncpy-alloca_true-valid-memsafety_true-termination.i [2018-03-28 12:09:47,819 INFO L230 ultiparseSymbolTable]: Global variable declaration of __U_MULTI_fcstrncpy_alloca_true_valid_memsafety_true_termination_i__u_char in cstrncpy-alloca_true-valid-memsafety_true-termination.i [2018-03-28 12:09:47,819 INFO L230 ultiparseSymbolTable]: Global variable declaration of __U_MULTI_fcstrncpy_alloca_true_valid_memsafety_true_termination_i__off_t in cstrncpy-alloca_true-valid-memsafety_true-termination.i [2018-03-28 12:09:47,819 INFO L230 ultiparseSymbolTable]: Global variable declaration of __U_MULTI_fcstrncpy_alloca_true_valid_memsafety_true_termination_i__quad_t in cstrncpy-alloca_true-valid-memsafety_true-termination.i [2018-03-28 12:09:47,819 INFO L230 ultiparseSymbolTable]: Global variable declaration of __U_MULTI_fcstrncpy_alloca_true_valid_memsafety_true_termination_i____pthread_list_t in cstrncpy-alloca_true-valid-memsafety_true-termination.i [2018-03-28 12:09:47,820 INFO L230 ultiparseSymbolTable]: Global variable declaration of __U_MULTI_fcstrncpy_alloca_true_valid_memsafety_true_termination_i__lldiv_t in cstrncpy-alloca_true-valid-memsafety_true-termination.i [2018-03-28 12:09:47,820 INFO L230 ultiparseSymbolTable]: Global variable declaration of __U_MULTI_fcstrncpy_alloca_true_valid_memsafety_true_termination_i____socklen_t in cstrncpy-alloca_true-valid-memsafety_true-termination.i [2018-03-28 12:09:47,820 INFO L230 ultiparseSymbolTable]: Global variable declaration of __U_MULTI_fcstrncpy_alloca_true_valid_memsafety_true_termination_i__int16_t in cstrncpy-alloca_true-valid-memsafety_true-termination.i [2018-03-28 12:09:47,820 INFO L230 ultiparseSymbolTable]: Global variable declaration of __U_MULTI_fcstrncpy_alloca_true_valid_memsafety_true_termination_i__uid_t in cstrncpy-alloca_true-valid-memsafety_true-termination.i [2018-03-28 12:09:47,836 INFO L334 CDTParser]: Deleted temporary CDT project at /storage/ultimate/releaseScripts/default/UAutomizer-linux/data/FLAG6d49e583d [2018-03-28 12:09:47,840 INFO L304 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2018-03-28 12:09:47,843 INFO L131 ToolchainWalker]: Walking toolchain with 4 elements. [2018-03-28 12:09:47,844 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2018-03-28 12:09:47,844 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2018-03-28 12:09:47,849 INFO L276 PluginConnector]: CACSL2BoogieTranslator initialized [2018-03-28 12:09:47,850 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 28.03 12:09:47" (1/1) ... [2018-03-28 12:09:47,852 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@44d4fb65 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.03 12:09:47, skipping insertion in model container [2018-03-28 12:09:47,852 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 28.03 12:09:47" (1/1) ... [2018-03-28 12:09:47,866 INFO L167 Dispatcher]: Using SV-COMP mode [2018-03-28 12:09:47,895 INFO L167 Dispatcher]: Using SV-COMP mode [2018-03-28 12:09:48,059 INFO L175 PostProcessor]: Settings: Checked method=main [2018-03-28 12:09:48,111 INFO L175 PostProcessor]: Settings: Checked method=main [2018-03-28 12:09:48,118 INFO L100 SccComputation]: Graph consists of 0 InCaSumBalls and 112 non ball SCCs. Number of states in SCCs 112. [2018-03-28 12:09:48,165 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.03 12:09:48 WrapperNode [2018-03-28 12:09:48,165 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2018-03-28 12:09:48,166 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2018-03-28 12:09:48,166 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2018-03-28 12:09:48,166 INFO L276 PluginConnector]: Boogie Preprocessor initialized [2018-03-28 12:09:48,176 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.03 12:09:48" (1/1) ... [2018-03-28 12:09:48,176 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.03 12:09:48" (1/1) ... [2018-03-28 12:09:48,191 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.03 12:09:48" (1/1) ... [2018-03-28 12:09:48,192 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.03 12:09:48" (1/1) ... [2018-03-28 12:09:48,204 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.03 12:09:48" (1/1) ... [2018-03-28 12:09:48,210 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.03 12:09:48" (1/1) ... [2018-03-28 12:09:48,213 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.03 12:09:48" (1/1) ... [2018-03-28 12:09:48,218 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2018-03-28 12:09:48,218 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2018-03-28 12:09:48,218 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2018-03-28 12:09:48,219 INFO L276 PluginConnector]: RCFGBuilder initialized [2018-03-28 12:09:48,220 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.03 12:09:48" (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 [2018-03-28 12:09:48,340 INFO L136 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2018-03-28 12:09:48,340 INFO L136 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2018-03-28 12:09:48,340 INFO L136 BoogieDeclarations]: Found implementation of procedure __U_MULTI_fcstrncpy_alloca_true_valid_memsafety_true_termination_i____bswap_32 [2018-03-28 12:09:48,340 INFO L136 BoogieDeclarations]: Found implementation of procedure __U_MULTI_fcstrncpy_alloca_true_valid_memsafety_true_termination_i____bswap_64 [2018-03-28 12:09:48,341 INFO L136 BoogieDeclarations]: Found implementation of procedure cstrncpy [2018-03-28 12:09:48,341 INFO L136 BoogieDeclarations]: Found implementation of procedure main [2018-03-28 12:09:48,341 INFO L128 BoogieDeclarations]: Found specification of procedure __U_MULTI_fcstrncpy_alloca_true_valid_memsafety_true_termination_i____bswap_32 [2018-03-28 12:09:48,341 INFO L128 BoogieDeclarations]: Found specification of procedure __U_MULTI_fcstrncpy_alloca_true_valid_memsafety_true_termination_i____bswap_64 [2018-03-28 12:09:48,341 INFO L128 BoogieDeclarations]: Found specification of procedure __ctype_get_mb_cur_max [2018-03-28 12:09:48,341 INFO L128 BoogieDeclarations]: Found specification of procedure atof [2018-03-28 12:09:48,341 INFO L128 BoogieDeclarations]: Found specification of procedure atoi [2018-03-28 12:09:48,341 INFO L128 BoogieDeclarations]: Found specification of procedure atol [2018-03-28 12:09:48,341 INFO L128 BoogieDeclarations]: Found specification of procedure atoll [2018-03-28 12:09:48,342 INFO L128 BoogieDeclarations]: Found specification of procedure strtod [2018-03-28 12:09:48,342 INFO L128 BoogieDeclarations]: Found specification of procedure strtof [2018-03-28 12:09:48,342 INFO L128 BoogieDeclarations]: Found specification of procedure strtold [2018-03-28 12:09:48,342 INFO L128 BoogieDeclarations]: Found specification of procedure strtol [2018-03-28 12:09:48,342 INFO L128 BoogieDeclarations]: Found specification of procedure strtoul [2018-03-28 12:09:48,342 INFO L128 BoogieDeclarations]: Found specification of procedure strtoq [2018-03-28 12:09:48,343 INFO L128 BoogieDeclarations]: Found specification of procedure strtouq [2018-03-28 12:09:48,343 INFO L128 BoogieDeclarations]: Found specification of procedure strtoll [2018-03-28 12:09:48,343 INFO L128 BoogieDeclarations]: Found specification of procedure strtoull [2018-03-28 12:09:48,343 INFO L128 BoogieDeclarations]: Found specification of procedure l64a [2018-03-28 12:09:48,343 INFO L128 BoogieDeclarations]: Found specification of procedure a64l [2018-03-28 12:09:48,343 INFO L128 BoogieDeclarations]: Found specification of procedure select [2018-03-28 12:09:48,344 INFO L128 BoogieDeclarations]: Found specification of procedure pselect [2018-03-28 12:09:48,344 INFO L128 BoogieDeclarations]: Found specification of procedure gnu_dev_major [2018-03-28 12:09:48,344 INFO L128 BoogieDeclarations]: Found specification of procedure gnu_dev_minor [2018-03-28 12:09:48,344 INFO L128 BoogieDeclarations]: Found specification of procedure gnu_dev_makedev [2018-03-28 12:09:48,344 INFO L128 BoogieDeclarations]: Found specification of procedure random [2018-03-28 12:09:48,344 INFO L128 BoogieDeclarations]: Found specification of procedure srandom [2018-03-28 12:09:48,344 INFO L128 BoogieDeclarations]: Found specification of procedure initstate [2018-03-28 12:09:48,344 INFO L128 BoogieDeclarations]: Found specification of procedure setstate [2018-03-28 12:09:48,344 INFO L128 BoogieDeclarations]: Found specification of procedure random_r [2018-03-28 12:09:48,344 INFO L128 BoogieDeclarations]: Found specification of procedure srandom_r [2018-03-28 12:09:48,344 INFO L128 BoogieDeclarations]: Found specification of procedure initstate_r [2018-03-28 12:09:48,345 INFO L128 BoogieDeclarations]: Found specification of procedure setstate_r [2018-03-28 12:09:48,345 INFO L128 BoogieDeclarations]: Found specification of procedure rand [2018-03-28 12:09:48,345 INFO L128 BoogieDeclarations]: Found specification of procedure srand [2018-03-28 12:09:48,345 INFO L128 BoogieDeclarations]: Found specification of procedure rand_r [2018-03-28 12:09:48,345 INFO L128 BoogieDeclarations]: Found specification of procedure drand48 [2018-03-28 12:09:48,345 INFO L128 BoogieDeclarations]: Found specification of procedure erand48 [2018-03-28 12:09:48,345 INFO L128 BoogieDeclarations]: Found specification of procedure lrand48 [2018-03-28 12:09:48,345 INFO L128 BoogieDeclarations]: Found specification of procedure nrand48 [2018-03-28 12:09:48,345 INFO L128 BoogieDeclarations]: Found specification of procedure mrand48 [2018-03-28 12:09:48,345 INFO L128 BoogieDeclarations]: Found specification of procedure jrand48 [2018-03-28 12:09:48,345 INFO L128 BoogieDeclarations]: Found specification of procedure srand48 [2018-03-28 12:09:48,346 INFO L128 BoogieDeclarations]: Found specification of procedure seed48 [2018-03-28 12:09:48,346 INFO L128 BoogieDeclarations]: Found specification of procedure lcong48 [2018-03-28 12:09:48,346 INFO L128 BoogieDeclarations]: Found specification of procedure drand48_r [2018-03-28 12:09:48,346 INFO L128 BoogieDeclarations]: Found specification of procedure erand48_r [2018-03-28 12:09:48,346 INFO L128 BoogieDeclarations]: Found specification of procedure lrand48_r [2018-03-28 12:09:48,346 INFO L128 BoogieDeclarations]: Found specification of procedure nrand48_r [2018-03-28 12:09:48,346 INFO L128 BoogieDeclarations]: Found specification of procedure mrand48_r [2018-03-28 12:09:48,346 INFO L128 BoogieDeclarations]: Found specification of procedure jrand48_r [2018-03-28 12:09:48,346 INFO L128 BoogieDeclarations]: Found specification of procedure srand48_r [2018-03-28 12:09:48,347 INFO L128 BoogieDeclarations]: Found specification of procedure seed48_r [2018-03-28 12:09:48,347 INFO L128 BoogieDeclarations]: Found specification of procedure lcong48_r [2018-03-28 12:09:48,347 INFO L128 BoogieDeclarations]: Found specification of procedure malloc [2018-03-28 12:09:48,347 INFO L128 BoogieDeclarations]: Found specification of procedure calloc [2018-03-28 12:09:48,347 INFO L128 BoogieDeclarations]: Found specification of procedure realloc [2018-03-28 12:09:48,347 INFO L128 BoogieDeclarations]: Found specification of procedure free [2018-03-28 12:09:48,347 INFO L128 BoogieDeclarations]: Found specification of procedure cfree [2018-03-28 12:09:48,347 INFO L128 BoogieDeclarations]: Found specification of procedure alloca [2018-03-28 12:09:48,347 INFO L128 BoogieDeclarations]: Found specification of procedure valloc [2018-03-28 12:09:48,347 INFO L128 BoogieDeclarations]: Found specification of procedure posix_memalign [2018-03-28 12:09:48,347 INFO L128 BoogieDeclarations]: Found specification of procedure abort [2018-03-28 12:09:48,348 INFO L128 BoogieDeclarations]: Found specification of procedure atexit [2018-03-28 12:09:48,348 INFO L128 BoogieDeclarations]: Found specification of procedure on_exit [2018-03-28 12:09:48,348 INFO L128 BoogieDeclarations]: Found specification of procedure exit [2018-03-28 12:09:48,348 INFO L128 BoogieDeclarations]: Found specification of procedure _Exit [2018-03-28 12:09:48,348 INFO L128 BoogieDeclarations]: Found specification of procedure getenv [2018-03-28 12:09:48,348 INFO L128 BoogieDeclarations]: Found specification of procedure putenv [2018-03-28 12:09:48,348 INFO L128 BoogieDeclarations]: Found specification of procedure setenv [2018-03-28 12:09:48,348 INFO L128 BoogieDeclarations]: Found specification of procedure unsetenv [2018-03-28 12:09:48,348 INFO L128 BoogieDeclarations]: Found specification of procedure clearenv [2018-03-28 12:09:48,348 INFO L128 BoogieDeclarations]: Found specification of procedure mktemp [2018-03-28 12:09:48,348 INFO L128 BoogieDeclarations]: Found specification of procedure mkstemp [2018-03-28 12:09:48,349 INFO L128 BoogieDeclarations]: Found specification of procedure mkstemps [2018-03-28 12:09:48,349 INFO L128 BoogieDeclarations]: Found specification of procedure mkdtemp [2018-03-28 12:09:48,349 INFO L128 BoogieDeclarations]: Found specification of procedure system [2018-03-28 12:09:48,349 INFO L128 BoogieDeclarations]: Found specification of procedure realpath [2018-03-28 12:09:48,349 INFO L128 BoogieDeclarations]: Found specification of procedure bsearch [2018-03-28 12:09:48,349 INFO L128 BoogieDeclarations]: Found specification of procedure qsort [2018-03-28 12:09:48,349 INFO L128 BoogieDeclarations]: Found specification of procedure abs [2018-03-28 12:09:48,349 INFO L128 BoogieDeclarations]: Found specification of procedure labs [2018-03-28 12:09:48,349 INFO L128 BoogieDeclarations]: Found specification of procedure llabs [2018-03-28 12:09:48,349 INFO L128 BoogieDeclarations]: Found specification of procedure div [2018-03-28 12:09:48,350 INFO L128 BoogieDeclarations]: Found specification of procedure ldiv [2018-03-28 12:09:48,350 INFO L128 BoogieDeclarations]: Found specification of procedure lldiv [2018-03-28 12:09:48,350 INFO L128 BoogieDeclarations]: Found specification of procedure ecvt [2018-03-28 12:09:48,350 INFO L128 BoogieDeclarations]: Found specification of procedure fcvt [2018-03-28 12:09:48,350 INFO L128 BoogieDeclarations]: Found specification of procedure gcvt [2018-03-28 12:09:48,350 INFO L128 BoogieDeclarations]: Found specification of procedure qecvt [2018-03-28 12:09:48,350 INFO L128 BoogieDeclarations]: Found specification of procedure qfcvt [2018-03-28 12:09:48,350 INFO L128 BoogieDeclarations]: Found specification of procedure qgcvt [2018-03-28 12:09:48,351 INFO L128 BoogieDeclarations]: Found specification of procedure ecvt_r [2018-03-28 12:09:48,351 INFO L128 BoogieDeclarations]: Found specification of procedure fcvt_r [2018-03-28 12:09:48,351 INFO L128 BoogieDeclarations]: Found specification of procedure qecvt_r [2018-03-28 12:09:48,351 INFO L128 BoogieDeclarations]: Found specification of procedure qfcvt_r [2018-03-28 12:09:48,351 INFO L128 BoogieDeclarations]: Found specification of procedure mblen [2018-03-28 12:09:48,351 INFO L128 BoogieDeclarations]: Found specification of procedure mbtowc [2018-03-28 12:09:48,351 INFO L128 BoogieDeclarations]: Found specification of procedure wctomb [2018-03-28 12:09:48,352 INFO L128 BoogieDeclarations]: Found specification of procedure mbstowcs [2018-03-28 12:09:48,352 INFO L128 BoogieDeclarations]: Found specification of procedure wcstombs [2018-03-28 12:09:48,352 INFO L128 BoogieDeclarations]: Found specification of procedure rpmatch [2018-03-28 12:09:48,352 INFO L128 BoogieDeclarations]: Found specification of procedure getsubopt [2018-03-28 12:09:48,352 INFO L128 BoogieDeclarations]: Found specification of procedure getloadavg [2018-03-28 12:09:48,352 INFO L128 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_int [2018-03-28 12:09:48,352 INFO L128 BoogieDeclarations]: Found specification of procedure cstrncpy [2018-03-28 12:09:48,352 INFO L128 BoogieDeclarations]: Found specification of procedure read~int [2018-03-28 12:09:48,353 INFO L128 BoogieDeclarations]: Found specification of procedure write~int [2018-03-28 12:09:48,353 INFO L128 BoogieDeclarations]: Found specification of procedure main [2018-03-28 12:09:48,353 INFO L128 BoogieDeclarations]: Found specification of procedure #Ultimate.alloc [2018-03-28 12:09:48,353 INFO L128 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2018-03-28 12:09:48,353 INFO L128 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2018-03-28 12:09:48,353 INFO L128 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2018-03-28 12:09:48,353 INFO L128 BoogieDeclarations]: Found specification of procedure write~unchecked~int [2018-03-28 12:09:48,781 INFO L259 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2018-03-28 12:09:48,782 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 28.03 12:09:48 BoogieIcfgContainer [2018-03-28 12:09:48,782 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2018-03-28 12:09:48,783 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2018-03-28 12:09:48,783 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2018-03-28 12:09:48,785 INFO L276 PluginConnector]: TraceAbstraction initialized [2018-03-28 12:09:48,785 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 28.03 12:09:47" (1/3) ... [2018-03-28 12:09:48,786 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@764012a2 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 28.03 12:09:48, skipping insertion in model container [2018-03-28 12:09:48,786 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.03 12:09:48" (2/3) ... [2018-03-28 12:09:48,786 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@764012a2 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 28.03 12:09:48, skipping insertion in model container [2018-03-28 12:09:48,786 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 28.03 12:09:48" (3/3) ... [2018-03-28 12:09:48,787 INFO L107 eAbstractionObserver]: Analyzing ICFG cstrncpy-alloca_true-valid-memsafety_true-termination.i [2018-03-28 12:09:48,796 INFO L131 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2018-03-28 12:09:48,804 INFO L143 ceAbstractionStarter]: Appying trace abstraction to program that has 9 error locations. [2018-03-28 12:09:48,845 INFO L128 ementStrategyFactory]: Using default assertion order modulation [2018-03-28 12:09:48,846 INFO L369 AbstractCegarLoop]: Interprodecural is true [2018-03-28 12:09:48,846 INFO L370 AbstractCegarLoop]: Hoare is true [2018-03-28 12:09:48,846 INFO L371 AbstractCegarLoop]: Compute interpolants for FPandBP [2018-03-28 12:09:48,846 INFO L372 AbstractCegarLoop]: Backedges is TWOTRACK [2018-03-28 12:09:48,846 INFO L373 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2018-03-28 12:09:48,846 INFO L374 AbstractCegarLoop]: Difference is false [2018-03-28 12:09:48,846 INFO L375 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2018-03-28 12:09:48,846 INFO L380 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2018-03-28 12:09:48,847 INFO L87 2NestedWordAutomaton]: Mode: main mode - execution starts in main procedure [2018-03-28 12:09:48,859 INFO L276 IsEmpty]: Start isEmpty. Operand 81 states. [2018-03-28 12:09:48,863 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 20 [2018-03-28 12:09:48,863 INFO L347 BasicCegarLoop]: Found error trace [2018-03-28 12:09:48,864 INFO L355 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-03-28 12:09:48,864 INFO L408 AbstractCegarLoop]: === Iteration 1 === [cstrncpyErr3RequiresViolation, cstrncpyErr5RequiresViolation, cstrncpyErr4RequiresViolation, cstrncpyErr2RequiresViolation, cstrncpyErr0RequiresViolation, cstrncpyErr1RequiresViolation, mainErr1RequiresViolation, mainErr2EnsuresViolationMEMORY_LEAK, mainErr0RequiresViolation]=== [2018-03-28 12:09:48,868 INFO L82 PathProgramCache]: Analyzing trace with hash -1897600849, 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 [2018-03-28 12:09:48,880 INFO L68 tionRefinementEngine]: Using refinement strategy FixedRefinementStrategy [2018-03-28 12:09:48,909 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-03-28 12:09:48,915 INFO L270 TraceCheckSpWp]: Computing forward predicates... [2018-03-28 12:09:48,953 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 [2018-03-28 12:09:48,954 INFO L267 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2018-03-28 12:09:48,959 INFO L267 ElimStorePlain]: Start of recursive call 1: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-03-28 12:09:48,960 INFO L202 ElimStorePlain]: Needed 2 recursive calls to eliminate 1 variables, input treesize:6, output treesize:5 [2018-03-28 12:09:48,977 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-03-28 12:09:48,977 INFO L314 TraceCheckSpWp]: Computing backward predicates... [2018-03-28 12:09:48,986 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-03-28 12:09:49,016 INFO L320 seRefinementStrategy]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2018-03-28 12:09:49,016 INFO L335 seRefinementStrategy]: Number of different interpolants: perfect sequences [3, 3] imperfect sequences [] total 3 [2018-03-28 12:09:49,018 INFO L442 AbstractCegarLoop]: Interpolant automaton has 4 states [2018-03-28 12:09:49,027 INFO L132 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2018-03-28 12:09:49,028 INFO L133 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2018-03-28 12:09:49,029 INFO L87 Difference]: Start difference. First operand 81 states. Second operand 4 states. [2018-03-28 12:09:49,122 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-03-28 12:09:49,122 INFO L93 Difference]: Finished difference Result 95 states and 100 transitions. [2018-03-28 12:09:49,123 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2018-03-28 12:09:49,124 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 19 [2018-03-28 12:09:49,125 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-03-28 12:09:49,136 INFO L225 Difference]: With dead ends: 95 [2018-03-28 12:09:49,136 INFO L226 Difference]: Without dead ends: 77 [2018-03-28 12:09:49,140 INFO L567 BasicCegarLoop]: 0 DeclaredPredicates, 38 GetRequests, 35 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2018-03-28 12:09:49,158 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 77 states. [2018-03-28 12:09:49,176 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 77 to 77. [2018-03-28 12:09:49,177 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 77 states. [2018-03-28 12:09:49,179 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 77 states to 77 states and 81 transitions. [2018-03-28 12:09:49,180 INFO L78 Accepts]: Start accepts. Automaton has 77 states and 81 transitions. Word has length 19 [2018-03-28 12:09:49,181 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-03-28 12:09:49,181 INFO L459 AbstractCegarLoop]: Abstraction has 77 states and 81 transitions. [2018-03-28 12:09:49,181 INFO L460 AbstractCegarLoop]: Interpolant automaton has 4 states. [2018-03-28 12:09:49,181 INFO L276 IsEmpty]: Start isEmpty. Operand 77 states and 81 transitions. [2018-03-28 12:09:49,182 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 20 [2018-03-28 12:09:49,182 INFO L347 BasicCegarLoop]: Found error trace [2018-03-28 12:09:49,182 INFO L355 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-03-28 12:09:49,182 INFO L408 AbstractCegarLoop]: === Iteration 2 === [cstrncpyErr3RequiresViolation, cstrncpyErr5RequiresViolation, cstrncpyErr4RequiresViolation, cstrncpyErr2RequiresViolation, cstrncpyErr0RequiresViolation, cstrncpyErr1RequiresViolation, mainErr1RequiresViolation, mainErr2EnsuresViolationMEMORY_LEAK, mainErr0RequiresViolation]=== [2018-03-28 12:09:49,182 INFO L82 PathProgramCache]: Analyzing trace with hash -1897600848, 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 [2018-03-28 12:09:49,191 INFO L68 tionRefinementEngine]: Using refinement strategy FixedRefinementStrategy [2018-03-28 12:09:49,205 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-03-28 12:09:49,207 INFO L270 TraceCheckSpWp]: Computing forward predicates... [2018-03-28 12:09:49,224 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 [2018-03-28 12:09:49,224 INFO L267 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2018-03-28 12:09:49,229 INFO L267 ElimStorePlain]: Start of recursive call 1: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-03-28 12:09:49,230 INFO L202 ElimStorePlain]: Needed 2 recursive calls to eliminate 1 variables, input treesize:13, output treesize:12 [2018-03-28 12:09:49,248 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-03-28 12:09:49,249 INFO L314 TraceCheckSpWp]: Computing backward predicates... [2018-03-28 12:09:49,283 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-03-28 12:09:49,304 INFO L320 seRefinementStrategy]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2018-03-28 12:09:49,304 INFO L335 seRefinementStrategy]: Number of different interpolants: perfect sequences [4, 4] imperfect sequences [] total 6 [2018-03-28 12:09:49,306 INFO L442 AbstractCegarLoop]: Interpolant automaton has 7 states [2018-03-28 12:09:49,306 INFO L132 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2018-03-28 12:09:49,307 INFO L133 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=27, Unknown=0, NotChecked=0, Total=42 [2018-03-28 12:09:49,307 INFO L87 Difference]: Start difference. First operand 77 states and 81 transitions. Second operand 7 states. [2018-03-28 12:09:49,397 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-03-28 12:09:49,397 INFO L93 Difference]: Finished difference Result 77 states and 81 transitions. [2018-03-28 12:09:49,397 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2018-03-28 12:09:49,397 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 19 [2018-03-28 12:09:49,398 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-03-28 12:09:49,399 INFO L225 Difference]: With dead ends: 77 [2018-03-28 12:09:49,399 INFO L226 Difference]: Without dead ends: 76 [2018-03-28 12:09:49,400 INFO L567 BasicCegarLoop]: 0 DeclaredPredicates, 38 GetRequests, 32 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 5 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=22, Invalid=34, Unknown=0, NotChecked=0, Total=56 [2018-03-28 12:09:49,401 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 76 states. [2018-03-28 12:09:49,407 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 76 to 76. [2018-03-28 12:09:49,407 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 76 states. [2018-03-28 12:09:49,409 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 76 states to 76 states and 80 transitions. [2018-03-28 12:09:49,409 INFO L78 Accepts]: Start accepts. Automaton has 76 states and 80 transitions. Word has length 19 [2018-03-28 12:09:49,410 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-03-28 12:09:49,410 INFO L459 AbstractCegarLoop]: Abstraction has 76 states and 80 transitions. [2018-03-28 12:09:49,410 INFO L460 AbstractCegarLoop]: Interpolant automaton has 7 states. [2018-03-28 12:09:49,410 INFO L276 IsEmpty]: Start isEmpty. Operand 76 states and 80 transitions. [2018-03-28 12:09:49,411 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 38 [2018-03-28 12:09:49,411 INFO L347 BasicCegarLoop]: Found error trace [2018-03-28 12:09:49,411 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] [2018-03-28 12:09:49,412 INFO L408 AbstractCegarLoop]: === Iteration 3 === [cstrncpyErr3RequiresViolation, cstrncpyErr5RequiresViolation, cstrncpyErr4RequiresViolation, cstrncpyErr2RequiresViolation, cstrncpyErr0RequiresViolation, cstrncpyErr1RequiresViolation, mainErr1RequiresViolation, mainErr2EnsuresViolationMEMORY_LEAK, mainErr0RequiresViolation]=== [2018-03-28 12:09:49,412 INFO L82 PathProgramCache]: Analyzing trace with hash 1105859402, 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 [2018-03-28 12:09:49,421 INFO L68 tionRefinementEngine]: Using refinement strategy FixedRefinementStrategy [2018-03-28 12:09:49,446 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-03-28 12:09:49,449 INFO L270 TraceCheckSpWp]: Computing forward predicates... [2018-03-28 12:09:49,547 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-03-28 12:09:49,547 INFO L314 TraceCheckSpWp]: Computing backward predicates... [2018-03-28 12:09:49,561 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-03-28 12:09:49,596 INFO L320 seRefinementStrategy]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2018-03-28 12:09:49,596 INFO L335 seRefinementStrategy]: Number of different interpolants: perfect sequences [6, 6] imperfect sequences [] total 6 [2018-03-28 12:09:49,596 INFO L442 AbstractCegarLoop]: Interpolant automaton has 7 states [2018-03-28 12:09:49,597 INFO L132 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2018-03-28 12:09:49,597 INFO L133 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2018-03-28 12:09:49,597 INFO L87 Difference]: Start difference. First operand 76 states and 80 transitions. Second operand 7 states. [2018-03-28 12:09:49,715 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-03-28 12:09:49,715 INFO L93 Difference]: Finished difference Result 76 states and 80 transitions. [2018-03-28 12:09:49,716 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2018-03-28 12:09:49,716 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 37 [2018-03-28 12:09:49,717 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-03-28 12:09:49,717 INFO L225 Difference]: With dead ends: 76 [2018-03-28 12:09:49,717 INFO L226 Difference]: Without dead ends: 75 [2018-03-28 12:09:49,718 INFO L567 BasicCegarLoop]: 0 DeclaredPredicates, 76 GetRequests, 68 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=29, Invalid=61, Unknown=0, NotChecked=0, Total=90 [2018-03-28 12:09:49,718 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 75 states. [2018-03-28 12:09:49,724 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 75 to 75. [2018-03-28 12:09:49,724 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 75 states. [2018-03-28 12:09:49,725 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 75 states to 75 states and 79 transitions. [2018-03-28 12:09:49,725 INFO L78 Accepts]: Start accepts. Automaton has 75 states and 79 transitions. Word has length 37 [2018-03-28 12:09:49,726 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-03-28 12:09:49,726 INFO L459 AbstractCegarLoop]: Abstraction has 75 states and 79 transitions. [2018-03-28 12:09:49,726 INFO L460 AbstractCegarLoop]: Interpolant automaton has 7 states. [2018-03-28 12:09:49,726 INFO L276 IsEmpty]: Start isEmpty. Operand 75 states and 79 transitions. [2018-03-28 12:09:49,726 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 38 [2018-03-28 12:09:49,727 INFO L347 BasicCegarLoop]: Found error trace [2018-03-28 12:09:49,727 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] [2018-03-28 12:09:49,727 INFO L408 AbstractCegarLoop]: === Iteration 4 === [cstrncpyErr3RequiresViolation, cstrncpyErr5RequiresViolation, cstrncpyErr4RequiresViolation, cstrncpyErr2RequiresViolation, cstrncpyErr0RequiresViolation, cstrncpyErr1RequiresViolation, mainErr1RequiresViolation, mainErr2EnsuresViolationMEMORY_LEAK, mainErr0RequiresViolation]=== [2018-03-28 12:09:49,727 INFO L82 PathProgramCache]: Analyzing trace with hash 1105859403, 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 [2018-03-28 12:09:49,739 INFO L68 tionRefinementEngine]: Using refinement strategy FixedRefinementStrategy [2018-03-28 12:09:49,763 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-03-28 12:09:49,767 INFO L270 TraceCheckSpWp]: Computing forward predicates... [2018-03-28 12:09:49,909 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-03-28 12:09:49,909 INFO L314 TraceCheckSpWp]: Computing backward predicates... [2018-03-28 12:09:49,922 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 [2018-03-28 12:09:49,923 INFO L267 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2018-03-28 12:09:49,934 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 [2018-03-28 12:09:49,935 INFO L267 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 1 xjuncts. [2018-03-28 12:09:49,939 INFO L267 ElimStorePlain]: Start of recursive call 1: 2 dim-0 vars, 2 dim-1 vars, End of recursive call: and 2 xjuncts. [2018-03-28 12:09:49,939 INFO L202 ElimStorePlain]: Needed 3 recursive calls to eliminate 4 variables, input treesize:29, output treesize:7 [2018-03-28 12:09:49,953 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-03-28 12:09:49,973 INFO L320 seRefinementStrategy]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2018-03-28 12:09:49,974 INFO L335 seRefinementStrategy]: Number of different interpolants: perfect sequences [9, 9] imperfect sequences [] total 9 [2018-03-28 12:09:49,974 INFO L442 AbstractCegarLoop]: Interpolant automaton has 10 states [2018-03-28 12:09:49,974 INFO L132 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2018-03-28 12:09:49,974 INFO L133 InterpolantAutomaton]: CoverageRelationStatistics Valid=19, Invalid=71, Unknown=0, NotChecked=0, Total=90 [2018-03-28 12:09:49,975 INFO L87 Difference]: Start difference. First operand 75 states and 79 transitions. Second operand 10 states. [2018-03-28 12:09:50,226 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-03-28 12:09:50,226 INFO L93 Difference]: Finished difference Result 89 states and 94 transitions. [2018-03-28 12:09:50,227 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2018-03-28 12:09:50,227 INFO L78 Accepts]: Start accepts. Automaton has 10 states. Word has length 37 [2018-03-28 12:09:50,227 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-03-28 12:09:50,231 INFO L225 Difference]: With dead ends: 89 [2018-03-28 12:09:50,231 INFO L226 Difference]: Without dead ends: 88 [2018-03-28 12:09:50,232 INFO L567 BasicCegarLoop]: 0 DeclaredPredicates, 80 GetRequests, 63 SyntacticMatches, 2 SemanticMatches, 15 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 34 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=62, Invalid=210, Unknown=0, NotChecked=0, Total=272 [2018-03-28 12:09:50,232 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 88 states. [2018-03-28 12:09:50,239 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 88 to 85. [2018-03-28 12:09:50,239 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 85 states. [2018-03-28 12:09:50,241 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 85 states to 85 states and 90 transitions. [2018-03-28 12:09:50,241 INFO L78 Accepts]: Start accepts. Automaton has 85 states and 90 transitions. Word has length 37 [2018-03-28 12:09:50,241 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-03-28 12:09:50,241 INFO L459 AbstractCegarLoop]: Abstraction has 85 states and 90 transitions. [2018-03-28 12:09:50,242 INFO L460 AbstractCegarLoop]: Interpolant automaton has 10 states. [2018-03-28 12:09:50,242 INFO L276 IsEmpty]: Start isEmpty. Operand 85 states and 90 transitions. [2018-03-28 12:09:50,243 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 39 [2018-03-28 12:09:50,243 INFO L347 BasicCegarLoop]: Found error trace [2018-03-28 12:09:50,243 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] [2018-03-28 12:09:50,243 INFO L408 AbstractCegarLoop]: === Iteration 5 === [cstrncpyErr3RequiresViolation, cstrncpyErr5RequiresViolation, cstrncpyErr4RequiresViolation, cstrncpyErr2RequiresViolation, cstrncpyErr0RequiresViolation, cstrncpyErr1RequiresViolation, mainErr1RequiresViolation, mainErr2EnsuresViolationMEMORY_LEAK, mainErr0RequiresViolation]=== [2018-03-28 12:09:50,243 INFO L82 PathProgramCache]: Analyzing trace with hash -78096902, 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 [2018-03-28 12:09:50,253 INFO L68 tionRefinementEngine]: Using refinement strategy FixedRefinementStrategy [2018-03-28 12:09:50,274 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-03-28 12:09:50,277 INFO L270 TraceCheckSpWp]: Computing forward predicates... [2018-03-28 12:09:50,281 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 [2018-03-28 12:09:50,281 INFO L267 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2018-03-28 12:09:50,306 INFO L267 ElimStorePlain]: Start of recursive call 1: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-03-28 12:09:50,306 INFO L202 ElimStorePlain]: Needed 2 recursive calls to eliminate 1 variables, input treesize:6, output treesize:5 [2018-03-28 12:09:50,325 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 [2018-03-28 12:09:50,326 INFO L267 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2018-03-28 12:09:50,329 INFO L267 ElimStorePlain]: Start of recursive call 1: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-03-28 12:09:50,329 INFO L202 ElimStorePlain]: Needed 2 recursive calls to eliminate 1 variables, input treesize:12, output treesize:11 [2018-03-28 12:09:50,370 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-03-28 12:09:50,371 INFO L314 TraceCheckSpWp]: Computing backward predicates... [2018-03-28 12:09:50,402 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-03-28 12:09:50,422 INFO L320 seRefinementStrategy]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2018-03-28 12:09:50,422 INFO L335 seRefinementStrategy]: Number of different interpolants: perfect sequences [9, 9] imperfect sequences [] total 11 [2018-03-28 12:09:50,423 INFO L442 AbstractCegarLoop]: Interpolant automaton has 12 states [2018-03-28 12:09:50,423 INFO L132 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2018-03-28 12:09:50,423 INFO L133 InterpolantAutomaton]: CoverageRelationStatistics Valid=29, Invalid=103, Unknown=0, NotChecked=0, Total=132 [2018-03-28 12:09:50,423 INFO L87 Difference]: Start difference. First operand 85 states and 90 transitions. Second operand 12 states. [2018-03-28 12:09:50,607 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-03-28 12:09:50,607 INFO L93 Difference]: Finished difference Result 85 states and 90 transitions. [2018-03-28 12:09:50,608 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2018-03-28 12:09:50,608 INFO L78 Accepts]: Start accepts. Automaton has 12 states. Word has length 38 [2018-03-28 12:09:50,608 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-03-28 12:09:50,609 INFO L225 Difference]: With dead ends: 85 [2018-03-28 12:09:50,609 INFO L226 Difference]: Without dead ends: 84 [2018-03-28 12:09:50,609 INFO L567 BasicCegarLoop]: 0 DeclaredPredicates, 81 GetRequests, 63 SyntacticMatches, 2 SemanticMatches, 16 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 37 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=71, Invalid=235, Unknown=0, NotChecked=0, Total=306 [2018-03-28 12:09:50,609 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 84 states. [2018-03-28 12:09:50,615 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 84 to 84. [2018-03-28 12:09:50,615 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 84 states. [2018-03-28 12:09:50,616 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 84 states to 84 states and 89 transitions. [2018-03-28 12:09:50,616 INFO L78 Accepts]: Start accepts. Automaton has 84 states and 89 transitions. Word has length 38 [2018-03-28 12:09:50,617 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-03-28 12:09:50,617 INFO L459 AbstractCegarLoop]: Abstraction has 84 states and 89 transitions. [2018-03-28 12:09:50,617 INFO L460 AbstractCegarLoop]: Interpolant automaton has 12 states. [2018-03-28 12:09:50,617 INFO L276 IsEmpty]: Start isEmpty. Operand 84 states and 89 transitions. [2018-03-28 12:09:50,618 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 39 [2018-03-28 12:09:50,618 INFO L347 BasicCegarLoop]: Found error trace [2018-03-28 12:09:50,618 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] [2018-03-28 12:09:50,618 INFO L408 AbstractCegarLoop]: === Iteration 6 === [cstrncpyErr3RequiresViolation, cstrncpyErr5RequiresViolation, cstrncpyErr4RequiresViolation, cstrncpyErr2RequiresViolation, cstrncpyErr0RequiresViolation, cstrncpyErr1RequiresViolation, mainErr1RequiresViolation, mainErr2EnsuresViolationMEMORY_LEAK, mainErr0RequiresViolation]=== [2018-03-28 12:09:50,618 INFO L82 PathProgramCache]: Analyzing trace with hash -78096901, 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 [2018-03-28 12:09:50,625 INFO L68 tionRefinementEngine]: Using refinement strategy FixedRefinementStrategy [2018-03-28 12:09:50,640 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-03-28 12:09:50,643 INFO L270 TraceCheckSpWp]: Computing forward predicates... [2018-03-28 12:09:50,650 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 [2018-03-28 12:09:50,651 INFO L267 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2018-03-28 12:09:50,657 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 [2018-03-28 12:09:50,657 INFO L267 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 1 xjuncts. [2018-03-28 12:09:50,662 INFO L267 ElimStorePlain]: Start of recursive call 1: 1 dim-0 vars, 2 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-03-28 12:09:50,662 INFO L202 ElimStorePlain]: Needed 3 recursive calls to eliminate 3 variables, input treesize:19, output treesize:14 [2018-03-28 12:09:50,680 INFO L700 Elim1Store]: detected not equals via solver [2018-03-28 12:09:50,681 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 [2018-03-28 12:09:50,682 INFO L267 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2018-03-28 12:09:50,692 INFO L700 Elim1Store]: detected not equals via solver [2018-03-28 12:09:50,693 INFO L700 Elim1Store]: detected not equals via solver [2018-03-28 12:09:50,693 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 [2018-03-28 12:09:50,694 INFO L267 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 1 xjuncts. [2018-03-28 12:09:50,704 INFO L267 ElimStorePlain]: Start of recursive call 1: 1 dim-0 vars, 2 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-03-28 12:09:50,704 INFO L202 ElimStorePlain]: Needed 3 recursive calls to eliminate 3 variables, input treesize:25, output treesize:13 [2018-03-28 12:09:50,754 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-03-28 12:09:50,754 INFO L314 TraceCheckSpWp]: Computing backward predicates... [2018-03-28 12:09:50,918 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 10 treesize of output 3 [2018-03-28 12:09:50,918 INFO L267 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2018-03-28 12:09:50,922 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 11 treesize of output 15 [2018-03-28 12:09:50,930 WARN L307 Elim1Store]: Array PQE input equivalent to true [2018-03-28 12:09:50,930 INFO L267 ElimStorePlain]: Start of recursive call 4: End of recursive call: and 1 xjuncts. [2018-03-28 12:09:50,932 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 12 treesize of output 3 [2018-03-28 12:09:50,932 INFO L267 ElimStorePlain]: Start of recursive call 5: End of recursive call: and 1 xjuncts. [2018-03-28 12:09:50,934 INFO L267 ElimStorePlain]: Start of recursive call 3: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-03-28 12:09:50,937 INFO L267 ElimStorePlain]: Start of recursive call 1: 3 dim-0 vars, 2 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-03-28 12:09:50,937 INFO L202 ElimStorePlain]: Needed 5 recursive calls to eliminate 5 variables, input treesize:21, output treesize:3 [2018-03-28 12:09:50,942 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-03-28 12:09:50,963 INFO L320 seRefinementStrategy]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2018-03-28 12:09:50,963 INFO L335 seRefinementStrategy]: Number of different interpolants: perfect sequences [10, 9] imperfect sequences [] total 17 [2018-03-28 12:09:50,963 INFO L442 AbstractCegarLoop]: Interpolant automaton has 18 states [2018-03-28 12:09:50,963 INFO L132 InterpolantAutomaton]: Constructing interpolant automaton starting with 18 interpolants. [2018-03-28 12:09:50,963 INFO L133 InterpolantAutomaton]: CoverageRelationStatistics Valid=44, Invalid=262, Unknown=0, NotChecked=0, Total=306 [2018-03-28 12:09:50,964 INFO L87 Difference]: Start difference. First operand 84 states and 89 transitions. Second operand 18 states. [2018-03-28 12:09:51,288 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-03-28 12:09:51,288 INFO L93 Difference]: Finished difference Result 92 states and 98 transitions. [2018-03-28 12:09:51,289 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2018-03-28 12:09:51,289 INFO L78 Accepts]: Start accepts. Automaton has 18 states. Word has length 38 [2018-03-28 12:09:51,289 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-03-28 12:09:51,290 INFO L225 Difference]: With dead ends: 92 [2018-03-28 12:09:51,290 INFO L226 Difference]: Without dead ends: 91 [2018-03-28 12:09:51,290 INFO L567 BasicCegarLoop]: 0 DeclaredPredicates, 85 GetRequests, 59 SyntacticMatches, 0 SemanticMatches, 26 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 69 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=133, Invalid=623, Unknown=0, NotChecked=0, Total=756 [2018-03-28 12:09:51,290 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 91 states. [2018-03-28 12:09:51,296 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 91 to 85. [2018-03-28 12:09:51,296 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 85 states. [2018-03-28 12:09:51,297 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 85 states to 85 states and 90 transitions. [2018-03-28 12:09:51,298 INFO L78 Accepts]: Start accepts. Automaton has 85 states and 90 transitions. Word has length 38 [2018-03-28 12:09:51,298 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-03-28 12:09:51,298 INFO L459 AbstractCegarLoop]: Abstraction has 85 states and 90 transitions. [2018-03-28 12:09:51,298 INFO L460 AbstractCegarLoop]: Interpolant automaton has 18 states. [2018-03-28 12:09:51,298 INFO L276 IsEmpty]: Start isEmpty. Operand 85 states and 90 transitions. [2018-03-28 12:09:51,299 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 40 [2018-03-28 12:09:51,299 INFO L347 BasicCegarLoop]: Found error trace [2018-03-28 12:09:51,299 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] [2018-03-28 12:09:51,300 INFO L408 AbstractCegarLoop]: === Iteration 7 === [cstrncpyErr3RequiresViolation, cstrncpyErr5RequiresViolation, cstrncpyErr4RequiresViolation, cstrncpyErr2RequiresViolation, cstrncpyErr0RequiresViolation, cstrncpyErr1RequiresViolation, mainErr1RequiresViolation, mainErr2EnsuresViolationMEMORY_LEAK, mainErr0RequiresViolation]=== [2018-03-28 12:09:51,300 INFO L82 PathProgramCache]: Analyzing trace with hash -712713128, 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 [2018-03-28 12:09:51,308 INFO L68 tionRefinementEngine]: Using refinement strategy FixedRefinementStrategy [2018-03-28 12:09:51,329 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-03-28 12:09:51,332 INFO L270 TraceCheckSpWp]: Computing forward predicates... [2018-03-28 12:09:51,351 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-03-28 12:09:51,351 INFO L314 TraceCheckSpWp]: Computing backward predicates... [2018-03-28 12:09:51,383 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-03-28 12:09:51,404 INFO L320 seRefinementStrategy]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2018-03-28 12:09:51,404 INFO L335 seRefinementStrategy]: Number of different interpolants: perfect sequences [5, 5] imperfect sequences [] total 6 [2018-03-28 12:09:51,404 INFO L442 AbstractCegarLoop]: Interpolant automaton has 6 states [2018-03-28 12:09:51,404 INFO L132 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2018-03-28 12:09:51,405 INFO L133 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2018-03-28 12:09:51,405 INFO L87 Difference]: Start difference. First operand 85 states and 90 transitions. Second operand 6 states. [2018-03-28 12:09:51,423 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-03-28 12:09:51,423 INFO L93 Difference]: Finished difference Result 96 states and 100 transitions. [2018-03-28 12:09:51,424 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2018-03-28 12:09:51,424 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 39 [2018-03-28 12:09:51,424 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-03-28 12:09:51,425 INFO L225 Difference]: With dead ends: 96 [2018-03-28 12:09:51,425 INFO L226 Difference]: Without dead ends: 85 [2018-03-28 12:09:51,425 INFO L567 BasicCegarLoop]: 0 DeclaredPredicates, 78 GetRequests, 70 SyntacticMatches, 3 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=16, Invalid=26, Unknown=0, NotChecked=0, Total=42 [2018-03-28 12:09:51,426 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 85 states. [2018-03-28 12:09:51,432 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 85 to 85. [2018-03-28 12:09:51,432 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 85 states. [2018-03-28 12:09:51,433 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 85 states to 85 states and 89 transitions. [2018-03-28 12:09:51,433 INFO L78 Accepts]: Start accepts. Automaton has 85 states and 89 transitions. Word has length 39 [2018-03-28 12:09:51,433 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-03-28 12:09:51,434 INFO L459 AbstractCegarLoop]: Abstraction has 85 states and 89 transitions. [2018-03-28 12:09:51,434 INFO L460 AbstractCegarLoop]: Interpolant automaton has 6 states. [2018-03-28 12:09:51,434 INFO L276 IsEmpty]: Start isEmpty. Operand 85 states and 89 transitions. [2018-03-28 12:09:51,435 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 53 [2018-03-28 12:09:51,435 INFO L347 BasicCegarLoop]: Found error trace [2018-03-28 12:09:51,435 INFO L355 BasicCegarLoop]: trace histogram [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, 1, 1, 1, 1, 1, 1, 1, 1] [2018-03-28 12:09:51,435 INFO L408 AbstractCegarLoop]: === Iteration 8 === [cstrncpyErr3RequiresViolation, cstrncpyErr5RequiresViolation, cstrncpyErr4RequiresViolation, cstrncpyErr2RequiresViolation, cstrncpyErr0RequiresViolation, cstrncpyErr1RequiresViolation, mainErr1RequiresViolation, mainErr2EnsuresViolationMEMORY_LEAK, mainErr0RequiresViolation]=== [2018-03-28 12:09:51,436 INFO L82 PathProgramCache]: Analyzing trace with hash 1036144935, 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 [2018-03-28 12:09:51,442 INFO L68 tionRefinementEngine]: Using refinement strategy FixedRefinementStrategy [2018-03-28 12:09:51,461 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-03-28 12:09:51,464 INFO L270 TraceCheckSpWp]: Computing forward predicates... [2018-03-28 12:09:51,477 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 [2018-03-28 12:09:51,492 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 [2018-03-28 12:09:51,493 INFO L267 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 1 xjuncts. [2018-03-28 12:09:51,509 INFO L267 ElimStorePlain]: Start of recursive call 2: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-03-28 12:09:51,530 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. [2018-03-28 12:09:51,530 INFO L202 ElimStorePlain]: Needed 3 recursive calls to eliminate 2 variables, input treesize:25, output treesize:21 [2018-03-28 12:09:51,720 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 20 treesize of output 16 [2018-03-28 12:09:51,729 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 16 treesize of output 13 [2018-03-28 12:09:51,729 INFO L267 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 2 xjuncts. [2018-03-28 12:09:51,734 INFO L267 ElimStorePlain]: Start of recursive call 2: 1 dim-1 vars, End of recursive call: and 2 xjuncts. [2018-03-28 12:09:51,746 INFO L267 ElimStorePlain]: Start of recursive call 1: 2 dim-0 vars, 1 dim-2 vars, End of recursive call: and 2 xjuncts. [2018-03-28 12:09:51,746 INFO L202 ElimStorePlain]: Needed 3 recursive calls to eliminate 3 variables, input treesize:38, output treesize:29 [2018-03-28 12:09:51,871 INFO L134 CoverageAnalysis]: Checked inductivity of 10 backedges. 0 proven. 10 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-03-28 12:09:51,871 INFO L314 TraceCheckSpWp]: Computing backward predicates... [2018-03-28 12:09:52,184 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 [2018-03-28 12:09:52,184 INFO L267 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2018-03-28 12:09:52,190 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 13 treesize of output 11 [2018-03-28 12:09:52,201 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 2 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 [2018-03-28 12:09:52,202 INFO L267 ElimStorePlain]: Start of recursive call 4: End of recursive call: and 1 xjuncts. [2018-03-28 12:09:52,204 INFO L267 ElimStorePlain]: Start of recursive call 3: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-03-28 12:09:52,210 INFO L267 ElimStorePlain]: Start of recursive call 1: 3 dim-0 vars, 1 dim-1 vars, 1 dim-2 vars, End of recursive call: and 1 xjuncts. [2018-03-28 12:09:52,210 INFO L202 ElimStorePlain]: Needed 4 recursive calls to eliminate 5 variables, input treesize:35, output treesize:7 [2018-03-28 12:09:52,224 INFO L134 CoverageAnalysis]: Checked inductivity of 10 backedges. 0 proven. 10 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-03-28 12:09:52,245 INFO L320 seRefinementStrategy]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2018-03-28 12:09:52,245 INFO L335 seRefinementStrategy]: Number of different interpolants: perfect sequences [] imperfect sequences [11, 11] total 20 [2018-03-28 12:09:52,246 INFO L442 AbstractCegarLoop]: Interpolant automaton has 21 states [2018-03-28 12:09:52,246 INFO L132 InterpolantAutomaton]: Constructing interpolant automaton starting with 21 interpolants. [2018-03-28 12:09:52,246 INFO L133 InterpolantAutomaton]: CoverageRelationStatistics Valid=55, Invalid=365, Unknown=0, NotChecked=0, Total=420 [2018-03-28 12:09:52,247 INFO L87 Difference]: Start difference. First operand 85 states and 89 transitions. Second operand 21 states. [2018-03-28 12:09:53,099 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-03-28 12:09:53,099 INFO L93 Difference]: Finished difference Result 113 states and 120 transitions. [2018-03-28 12:09:53,099 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 20 states. [2018-03-28 12:09:53,099 INFO L78 Accepts]: Start accepts. Automaton has 21 states. Word has length 52 [2018-03-28 12:09:53,100 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-03-28 12:09:53,100 INFO L225 Difference]: With dead ends: 113 [2018-03-28 12:09:53,100 INFO L226 Difference]: Without dead ends: 112 [2018-03-28 12:09:53,101 INFO L567 BasicCegarLoop]: 0 DeclaredPredicates, 114 GetRequests, 83 SyntacticMatches, 1 SemanticMatches, 30 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 122 ImplicationChecksByTransitivity, 1.0s TimeCoverageRelationStatistics Valid=156, Invalid=836, Unknown=0, NotChecked=0, Total=992 [2018-03-28 12:09:53,101 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 112 states. [2018-03-28 12:09:53,107 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 112 to 99. [2018-03-28 12:09:53,107 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 99 states. [2018-03-28 12:09:53,108 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 99 states to 99 states and 105 transitions. [2018-03-28 12:09:53,108 INFO L78 Accepts]: Start accepts. Automaton has 99 states and 105 transitions. Word has length 52 [2018-03-28 12:09:53,109 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-03-28 12:09:53,109 INFO L459 AbstractCegarLoop]: Abstraction has 99 states and 105 transitions. [2018-03-28 12:09:53,109 INFO L460 AbstractCegarLoop]: Interpolant automaton has 21 states. [2018-03-28 12:09:53,109 INFO L276 IsEmpty]: Start isEmpty. Operand 99 states and 105 transitions. [2018-03-28 12:09:53,110 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 53 [2018-03-28 12:09:53,110 INFO L347 BasicCegarLoop]: Found error trace [2018-03-28 12:09:53,111 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, 1, 1, 1] [2018-03-28 12:09:53,111 INFO L408 AbstractCegarLoop]: === Iteration 9 === [cstrncpyErr3RequiresViolation, cstrncpyErr5RequiresViolation, cstrncpyErr4RequiresViolation, cstrncpyErr2RequiresViolation, cstrncpyErr0RequiresViolation, cstrncpyErr1RequiresViolation, mainErr1RequiresViolation, mainErr2EnsuresViolationMEMORY_LEAK, mainErr0RequiresViolation]=== [2018-03-28 12:09:53,111 INFO L82 PathProgramCache]: Analyzing trace with hash -2049691577, 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 [2018-03-28 12:09:53,117 INFO L68 tionRefinementEngine]: Using refinement strategy FixedRefinementStrategy [2018-03-28 12:09:53,135 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-03-28 12:09:53,137 INFO L270 TraceCheckSpWp]: Computing forward predicates... [2018-03-28 12:09:53,158 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-03-28 12:09:53,158 INFO L314 TraceCheckSpWp]: Computing backward predicates... [2018-03-28 12:09:53,162 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 1 new quantified variables, introduced 0 case distinctions, treesize of input 12 treesize of output 7 [2018-03-28 12:09:53,163 INFO L267 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2018-03-28 12:09:53,164 INFO L267 ElimStorePlain]: Start of recursive call 1: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-03-28 12:09:53,164 INFO L202 ElimStorePlain]: Needed 2 recursive calls to eliminate 1 variables, input treesize:12, output treesize:3 [2018-03-28 12:09:53,169 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-03-28 12:09:53,189 INFO L320 seRefinementStrategy]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2018-03-28 12:09:53,189 INFO L335 seRefinementStrategy]: Number of different interpolants: perfect sequences [5, 5] imperfect sequences [] total 5 [2018-03-28 12:09:53,190 INFO L442 AbstractCegarLoop]: Interpolant automaton has 6 states [2018-03-28 12:09:53,190 INFO L132 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2018-03-28 12:09:53,190 INFO L133 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2018-03-28 12:09:53,190 INFO L87 Difference]: Start difference. First operand 99 states and 105 transitions. Second operand 6 states. [2018-03-28 12:09:53,247 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-03-28 12:09:53,247 INFO L93 Difference]: Finished difference Result 102 states and 108 transitions. [2018-03-28 12:09:53,247 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2018-03-28 12:09:53,247 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 52 [2018-03-28 12:09:53,247 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-03-28 12:09:53,248 INFO L225 Difference]: With dead ends: 102 [2018-03-28 12:09:53,248 INFO L226 Difference]: Without dead ends: 101 [2018-03-28 12:09:53,248 INFO L567 BasicCegarLoop]: 0 DeclaredPredicates, 107 GetRequests, 100 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=23, Invalid=49, Unknown=0, NotChecked=0, Total=72 [2018-03-28 12:09:53,248 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 101 states. [2018-03-28 12:09:53,254 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 101 to 98. [2018-03-28 12:09:53,254 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 98 states. [2018-03-28 12:09:53,255 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 98 states to 98 states and 104 transitions. [2018-03-28 12:09:53,255 INFO L78 Accepts]: Start accepts. Automaton has 98 states and 104 transitions. Word has length 52 [2018-03-28 12:09:53,256 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-03-28 12:09:53,256 INFO L459 AbstractCegarLoop]: Abstraction has 98 states and 104 transitions. [2018-03-28 12:09:53,256 INFO L460 AbstractCegarLoop]: Interpolant automaton has 6 states. [2018-03-28 12:09:53,256 INFO L276 IsEmpty]: Start isEmpty. Operand 98 states and 104 transitions. [2018-03-28 12:09:53,257 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 53 [2018-03-28 12:09:53,257 INFO L347 BasicCegarLoop]: Found error trace [2018-03-28 12:09:53,257 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, 1, 1, 1] [2018-03-28 12:09:53,258 INFO L408 AbstractCegarLoop]: === Iteration 10 === [cstrncpyErr3RequiresViolation, cstrncpyErr5RequiresViolation, cstrncpyErr4RequiresViolation, cstrncpyErr2RequiresViolation, cstrncpyErr0RequiresViolation, cstrncpyErr1RequiresViolation, mainErr1RequiresViolation, mainErr2EnsuresViolationMEMORY_LEAK, mainErr0RequiresViolation]=== [2018-03-28 12:09:53,258 INFO L82 PathProgramCache]: Analyzing trace with hash -2049691576, 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 [2018-03-28 12:09:53,265 INFO L68 tionRefinementEngine]: Using refinement strategy FixedRefinementStrategy [2018-03-28 12:09:53,287 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-03-28 12:09:53,290 INFO L270 TraceCheckSpWp]: Computing forward predicates... [2018-03-28 12:09:53,301 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 [2018-03-28 12:09:53,302 INFO L267 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2018-03-28 12:09:53,307 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 [2018-03-28 12:09:53,307 INFO L267 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 1 xjuncts. [2018-03-28 12:09:53,311 INFO L267 ElimStorePlain]: Start of recursive call 1: 2 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-03-28 12:09:53,311 INFO L202 ElimStorePlain]: Needed 3 recursive calls to eliminate 2 variables, input treesize:16, output treesize:14 [2018-03-28 12:09:53,323 INFO L700 Elim1Store]: detected not equals via solver [2018-03-28 12:09:53,324 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 [2018-03-28 12:09:53,324 INFO L267 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2018-03-28 12:09:53,332 INFO L700 Elim1Store]: detected not equals via solver [2018-03-28 12:09:53,332 INFO L700 Elim1Store]: detected not equals via solver [2018-03-28 12:09:53,333 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 [2018-03-28 12:09:53,333 INFO L267 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 1 xjuncts. [2018-03-28 12:09:53,337 INFO L267 ElimStorePlain]: Start of recursive call 1: 1 dim-0 vars, 2 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-03-28 12:09:53,337 INFO L202 ElimStorePlain]: Needed 3 recursive calls to eliminate 3 variables, input treesize:25, output treesize:13 [2018-03-28 12:09:53,560 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-03-28 12:09:53,561 INFO L314 TraceCheckSpWp]: Computing backward predicates... [2018-03-28 12:09:54,015 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-03-28 12:09:54,036 INFO L320 seRefinementStrategy]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2018-03-28 12:09:54,036 INFO L335 seRefinementStrategy]: Number of different interpolants: perfect sequences [20, 19] imperfect sequences [] total 38 [2018-03-28 12:09:54,037 INFO L442 AbstractCegarLoop]: Interpolant automaton has 39 states [2018-03-28 12:09:54,037 INFO L132 InterpolantAutomaton]: Constructing interpolant automaton starting with 39 interpolants. [2018-03-28 12:09:54,037 INFO L133 InterpolantAutomaton]: CoverageRelationStatistics Valid=113, Invalid=1369, Unknown=0, NotChecked=0, Total=1482 [2018-03-28 12:09:54,038 INFO L87 Difference]: Start difference. First operand 98 states and 104 transitions. Second operand 39 states. [2018-03-28 12:09:56,211 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-03-28 12:09:56,211 INFO L93 Difference]: Finished difference Result 183 states and 196 transitions. [2018-03-28 12:09:56,239 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 52 states. [2018-03-28 12:09:56,239 INFO L78 Accepts]: Start accepts. Automaton has 39 states. Word has length 52 [2018-03-28 12:09:56,240 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-03-28 12:09:56,241 INFO L225 Difference]: With dead ends: 183 [2018-03-28 12:09:56,241 INFO L226 Difference]: Without dead ends: 182 [2018-03-28 12:09:56,242 INFO L567 BasicCegarLoop]: 0 DeclaredPredicates, 149 GetRequests, 66 SyntacticMatches, 0 SemanticMatches, 83 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1287 ImplicationChecksByTransitivity, 2.2s TimeCoverageRelationStatistics Valid=817, Invalid=6323, Unknown=0, NotChecked=0, Total=7140 [2018-03-28 12:09:56,243 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 182 states. [2018-03-28 12:09:56,250 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 182 to 113. [2018-03-28 12:09:56,250 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 113 states. [2018-03-28 12:09:56,251 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 113 states to 113 states and 122 transitions. [2018-03-28 12:09:56,251 INFO L78 Accepts]: Start accepts. Automaton has 113 states and 122 transitions. Word has length 52 [2018-03-28 12:09:56,251 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-03-28 12:09:56,251 INFO L459 AbstractCegarLoop]: Abstraction has 113 states and 122 transitions. [2018-03-28 12:09:56,251 INFO L460 AbstractCegarLoop]: Interpolant automaton has 39 states. [2018-03-28 12:09:56,252 INFO L276 IsEmpty]: Start isEmpty. Operand 113 states and 122 transitions. [2018-03-28 12:09:56,252 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 54 [2018-03-28 12:09:56,252 INFO L347 BasicCegarLoop]: Found error trace [2018-03-28 12:09:56,252 INFO L355 BasicCegarLoop]: trace histogram [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, 1, 1, 1, 1, 1, 1, 1] [2018-03-28 12:09:56,253 INFO L408 AbstractCegarLoop]: === Iteration 11 === [cstrncpyErr3RequiresViolation, cstrncpyErr5RequiresViolation, cstrncpyErr4RequiresViolation, cstrncpyErr2RequiresViolation, cstrncpyErr0RequiresViolation, cstrncpyErr1RequiresViolation, mainErr1RequiresViolation, mainErr2EnsuresViolationMEMORY_LEAK, mainErr0RequiresViolation]=== [2018-03-28 12:09:56,253 INFO L82 PathProgramCache]: Analyzing trace with hash 2055721887, 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 [2018-03-28 12:09:56,262 INFO L68 tionRefinementEngine]: Using refinement strategy FixedRefinementStrategy [2018-03-28 12:09:56,285 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-03-28 12:09:56,287 INFO L270 TraceCheckSpWp]: Computing forward predicates... [2018-03-28 12:09:56,290 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 [2018-03-28 12:09:56,290 INFO L267 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2018-03-28 12:09:56,299 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 [2018-03-28 12:09:56,300 INFO L267 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 1 xjuncts. [2018-03-28 12:09:56,305 INFO L267 ElimStorePlain]: Start of recursive call 1: 2 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-03-28 12:09:56,306 INFO L202 ElimStorePlain]: Needed 3 recursive calls to eliminate 2 variables, input treesize:16, output treesize:14 [2018-03-28 12:09:56,320 INFO L700 Elim1Store]: detected not equals via solver [2018-03-28 12:09:56,321 INFO L700 Elim1Store]: detected not equals via solver [2018-03-28 12:09:56,321 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 [2018-03-28 12:09:56,322 INFO L267 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2018-03-28 12:09:56,329 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 [2018-03-28 12:09:56,329 INFO L267 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 1 xjuncts. [2018-03-28 12:09:56,334 INFO L267 ElimStorePlain]: Start of recursive call 1: 1 dim-0 vars, 2 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-03-28 12:09:56,334 INFO L202 ElimStorePlain]: Needed 3 recursive calls to eliminate 3 variables, input treesize:25, output treesize:13 [2018-03-28 12:09:56,461 INFO L134 CoverageAnalysis]: Checked inductivity of 11 backedges. 0 proven. 11 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-03-28 12:09:56,462 INFO L314 TraceCheckSpWp]: Computing backward predicates... [2018-03-28 12:09:56,756 INFO L134 CoverageAnalysis]: Checked inductivity of 11 backedges. 0 proven. 11 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-03-28 12:09:56,777 INFO L320 seRefinementStrategy]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2018-03-28 12:09:56,777 INFO L335 seRefinementStrategy]: Number of different interpolants: perfect sequences [] imperfect sequences [16, 15] total 30 [2018-03-28 12:09:56,777 INFO L442 AbstractCegarLoop]: Interpolant automaton has 31 states [2018-03-28 12:09:56,777 INFO L132 InterpolantAutomaton]: Constructing interpolant automaton starting with 31 interpolants. [2018-03-28 12:09:56,778 INFO L133 InterpolantAutomaton]: CoverageRelationStatistics Valid=88, Invalid=842, Unknown=0, NotChecked=0, Total=930 [2018-03-28 12:09:56,778 INFO L87 Difference]: Start difference. First operand 113 states and 122 transitions. Second operand 31 states. [2018-03-28 12:09:57,900 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-03-28 12:09:57,900 INFO L93 Difference]: Finished difference Result 178 states and 191 transitions. [2018-03-28 12:09:57,900 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 32 states. [2018-03-28 12:09:57,901 INFO L78 Accepts]: Start accepts. Automaton has 31 states. Word has length 53 [2018-03-28 12:09:57,901 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-03-28 12:09:57,902 INFO L225 Difference]: With dead ends: 178 [2018-03-28 12:09:57,902 INFO L226 Difference]: Without dead ends: 177 [2018-03-28 12:09:57,903 INFO L567 BasicCegarLoop]: 0 DeclaredPredicates, 131 GetRequests, 76 SyntacticMatches, 0 SemanticMatches, 55 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 444 ImplicationChecksByTransitivity, 1.1s TimeCoverageRelationStatistics Valid=422, Invalid=2770, Unknown=0, NotChecked=0, Total=3192 [2018-03-28 12:09:57,903 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 177 states. [2018-03-28 12:09:57,908 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 177 to 127. [2018-03-28 12:09:57,909 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 127 states. [2018-03-28 12:09:57,909 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 127 states to 127 states and 137 transitions. [2018-03-28 12:09:57,909 INFO L78 Accepts]: Start accepts. Automaton has 127 states and 137 transitions. Word has length 53 [2018-03-28 12:09:57,909 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-03-28 12:09:57,910 INFO L459 AbstractCegarLoop]: Abstraction has 127 states and 137 transitions. [2018-03-28 12:09:57,910 INFO L460 AbstractCegarLoop]: Interpolant automaton has 31 states. [2018-03-28 12:09:57,910 INFO L276 IsEmpty]: Start isEmpty. Operand 127 states and 137 transitions. [2018-03-28 12:09:57,911 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 55 [2018-03-28 12:09:57,911 INFO L347 BasicCegarLoop]: Found error trace [2018-03-28 12:09:57,911 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, 1, 1, 1, 1, 1, 1] [2018-03-28 12:09:57,911 INFO L408 AbstractCegarLoop]: === Iteration 12 === [cstrncpyErr3RequiresViolation, cstrncpyErr5RequiresViolation, cstrncpyErr4RequiresViolation, cstrncpyErr2RequiresViolation, cstrncpyErr0RequiresViolation, cstrncpyErr1RequiresViolation, mainErr1RequiresViolation, mainErr2EnsuresViolationMEMORY_LEAK, mainErr0RequiresViolation]=== [2018-03-28 12:09:57,911 INFO L82 PathProgramCache]: Analyzing trace with hash 1011159860, 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 [2018-03-28 12:09:57,919 INFO L68 tionRefinementEngine]: Using refinement strategy FixedRefinementStrategy [2018-03-28 12:09:57,938 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-03-28 12:09:57,940 INFO L270 TraceCheckSpWp]: Computing forward predicates... [2018-03-28 12:09:57,961 INFO L700 Elim1Store]: detected not equals via solver [2018-03-28 12:09:57,961 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 [2018-03-28 12:09:57,964 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 [2018-03-28 12:09:57,964 INFO L267 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 1 xjuncts. [2018-03-28 12:09:57,967 INFO L267 ElimStorePlain]: Start of recursive call 2: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-03-28 12:09:57,970 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. [2018-03-28 12:09:57,971 INFO L202 ElimStorePlain]: Needed 3 recursive calls to eliminate 3 variables, input treesize:23, output treesize:15 [2018-03-28 12:09:58,002 WARN L1033 $PredicateComparison]: unable to prove that (exists ((|main_#t~malloc10.base| Int)) (let ((.cse0 (store |c_old(#valid)| |main_#t~malloc10.base| 1))) (and (= 0 (select |c_old(#valid)| |main_#t~malloc10.base|)) (= (select .cse0 |c_main_#t~malloc11.base|) 0) (= |c_#valid| (store (store .cse0 |c_main_#t~malloc11.base| 1) |main_#t~malloc10.base| 0))))) is different from true [2018-03-28 12:09:58,006 WARN L1033 $PredicateComparison]: unable to prove that (exists ((|main_#t~malloc11.base| Int) (|main_#t~malloc10.base| Int)) (let ((.cse0 (store |c_old(#valid)| |main_#t~malloc10.base| 1))) (and (= 0 (select |c_old(#valid)| |main_#t~malloc10.base|)) (= (store (store (store .cse0 |main_#t~malloc11.base| 1) |main_#t~malloc10.base| 0) |main_#t~malloc11.base| 0) |c_#valid|) (= (select .cse0 |main_#t~malloc11.base|) 0)))) is different from true [2018-03-28 12:09:58,027 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2018-03-28 12:09:58,027 INFO L314 TraceCheckSpWp]: Computing backward predicates... [2018-03-28 12:09:58,055 WARN L1011 $PredicateComparison]: unable to prove that (forall ((|v_main_#t~malloc11.base_16| Int)) (or (not (= 0 (select |c_#valid| |v_main_#t~malloc11.base_16|))) (= (store (store (store |c_#valid| |v_main_#t~malloc11.base_16| 1) |c_main_#t~malloc10.base| 0) |v_main_#t~malloc11.base_16| 0) |c_old(#valid)|))) is different from false [2018-03-28 12:09:58,059 WARN L1011 $PredicateComparison]: unable to prove that (forall ((|v_main_#t~malloc10.base_15| Int) (|v_main_#t~malloc11.base_16| Int)) (let ((.cse0 (store |c_#valid| |v_main_#t~malloc10.base_15| 1))) (or (not (= (select .cse0 |v_main_#t~malloc11.base_16|) 0)) (= |c_old(#valid)| (store (store (store .cse0 |v_main_#t~malloc11.base_16| 1) |v_main_#t~malloc10.base_15| 0) |v_main_#t~malloc11.base_16| 0)) (not (= (select |c_#valid| |v_main_#t~malloc10.base_15|) 0))))) is different from false [2018-03-28 12:09:58,075 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2018-03-28 12:09:58,096 INFO L320 seRefinementStrategy]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2018-03-28 12:09:58,097 INFO L335 seRefinementStrategy]: Number of different interpolants: perfect sequences [7, 6] imperfect sequences [] total 11 [2018-03-28 12:09:58,097 INFO L442 AbstractCegarLoop]: Interpolant automaton has 12 states [2018-03-28 12:09:58,097 INFO L132 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2018-03-28 12:09:58,097 INFO L133 InterpolantAutomaton]: CoverageRelationStatistics Valid=23, Invalid=45, Unknown=4, NotChecked=60, Total=132 [2018-03-28 12:09:58,097 INFO L87 Difference]: Start difference. First operand 127 states and 137 transitions. Second operand 12 states. [2018-03-28 12:09:58,106 WARN L1011 $PredicateComparison]: unable to prove that (and (forall ((|v_main_#t~malloc10.base_15| Int) (|v_main_#t~malloc11.base_16| Int)) (let ((.cse0 (store |c_#valid| |v_main_#t~malloc10.base_15| 1))) (or (not (= (select .cse0 |v_main_#t~malloc11.base_16|) 0)) (= |c_old(#valid)| (store (store (store .cse0 |v_main_#t~malloc11.base_16| 1) |v_main_#t~malloc10.base_15| 0) |v_main_#t~malloc11.base_16| 0)) (not (= (select |c_#valid| |v_main_#t~malloc10.base_15|) 0))))) (= |c_#valid| |c_old(#valid)|)) is different from false [2018-03-28 12:09:58,381 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-03-28 12:09:58,381 INFO L93 Difference]: Finished difference Result 239 states and 258 transitions. [2018-03-28 12:09:58,382 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2018-03-28 12:09:58,382 INFO L78 Accepts]: Start accepts. Automaton has 12 states. Word has length 54 [2018-03-28 12:09:58,382 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-03-28 12:09:58,384 INFO L225 Difference]: With dead ends: 239 [2018-03-28 12:09:58,384 INFO L226 Difference]: Without dead ends: 227 [2018-03-28 12:09:58,385 INFO L567 BasicCegarLoop]: 0 DeclaredPredicates, 115 GetRequests, 97 SyntacticMatches, 2 SemanticMatches, 16 ConstructedPredicates, 5 IntricatePredicates, 0 DeprecatedPredicates, 12 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=45, Invalid=125, Unknown=6, NotChecked=130, Total=306 [2018-03-28 12:09:58,385 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 227 states. [2018-03-28 12:09:58,402 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 227 to 224. [2018-03-28 12:09:58,402 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 224 states. [2018-03-28 12:09:58,404 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 224 states to 224 states and 242 transitions. [2018-03-28 12:09:58,404 INFO L78 Accepts]: Start accepts. Automaton has 224 states and 242 transitions. Word has length 54 [2018-03-28 12:09:58,404 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-03-28 12:09:58,404 INFO L459 AbstractCegarLoop]: Abstraction has 224 states and 242 transitions. [2018-03-28 12:09:58,405 INFO L460 AbstractCegarLoop]: Interpolant automaton has 12 states. [2018-03-28 12:09:58,405 INFO L276 IsEmpty]: Start isEmpty. Operand 224 states and 242 transitions. [2018-03-28 12:09:58,406 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 56 [2018-03-28 12:09:58,406 INFO L347 BasicCegarLoop]: Found error trace [2018-03-28 12:09:58,406 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, 1, 1, 1, 1, 1, 1, 1] [2018-03-28 12:09:58,406 INFO L408 AbstractCegarLoop]: === Iteration 13 === [cstrncpyErr3RequiresViolation, cstrncpyErr5RequiresViolation, cstrncpyErr4RequiresViolation, cstrncpyErr2RequiresViolation, cstrncpyErr0RequiresViolation, cstrncpyErr1RequiresViolation, mainErr1RequiresViolation, mainErr2EnsuresViolationMEMORY_LEAK, mainErr0RequiresViolation]=== [2018-03-28 12:09:58,406 INFO L82 PathProgramCache]: Analyzing trace with hash 415297934, 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 [2018-03-28 12:09:58,414 INFO L68 tionRefinementEngine]: Using refinement strategy FixedRefinementStrategy [2018-03-28 12:09:58,432 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-03-28 12:09:58,434 INFO L270 TraceCheckSpWp]: Computing forward predicates... [2018-03-28 12:09:58,440 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 11 treesize of output 8 [2018-03-28 12:09:58,442 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 8 treesize of output 7 [2018-03-28 12:09:58,443 INFO L267 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 1 xjuncts. [2018-03-28 12:09:58,444 INFO L267 ElimStorePlain]: Start of recursive call 2: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-03-28 12:09:58,445 INFO L267 ElimStorePlain]: Start of recursive call 1: 1 dim-2 vars, End of recursive call: and 1 xjuncts. [2018-03-28 12:09:58,446 INFO L202 ElimStorePlain]: Needed 3 recursive calls to eliminate 1 variables, input treesize:11, output treesize:7 [2018-03-28 12:09:58,490 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-03-28 12:09:58,490 INFO L314 TraceCheckSpWp]: Computing backward predicates... [2018-03-28 12:09:58,593 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 13 treesize of output 11 [2018-03-28 12:09:58,602 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 [2018-03-28 12:09:58,602 INFO L267 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 1 xjuncts. [2018-03-28 12:09:58,603 INFO L267 ElimStorePlain]: Start of recursive call 2: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-03-28 12:09:58,604 INFO L267 ElimStorePlain]: Start of recursive call 1: 2 dim-0 vars, 1 dim-2 vars, End of recursive call: and 1 xjuncts. [2018-03-28 12:09:58,604 INFO L202 ElimStorePlain]: Needed 3 recursive calls to eliminate 3 variables, input treesize:13, output treesize:3 [2018-03-28 12:09:58,610 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 2 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-03-28 12:09:58,641 INFO L320 seRefinementStrategy]: Constructing automaton from 1 perfect and 1 imperfect interpolant sequences. [2018-03-28 12:09:58,641 INFO L335 seRefinementStrategy]: Number of different interpolants: perfect sequences [10] imperfect sequences [10] total 15 [2018-03-28 12:09:58,641 INFO L442 AbstractCegarLoop]: Interpolant automaton has 15 states [2018-03-28 12:09:58,642 INFO L132 InterpolantAutomaton]: Constructing interpolant automaton starting with 15 interpolants. [2018-03-28 12:09:58,642 INFO L133 InterpolantAutomaton]: CoverageRelationStatistics Valid=43, Invalid=167, Unknown=0, NotChecked=0, Total=210 [2018-03-28 12:09:58,642 INFO L87 Difference]: Start difference. First operand 224 states and 242 transitions. Second operand 15 states. [2018-03-28 12:09:58,907 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-03-28 12:09:58,907 INFO L93 Difference]: Finished difference Result 296 states and 317 transitions. [2018-03-28 12:09:58,907 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 17 states. [2018-03-28 12:09:58,908 INFO L78 Accepts]: Start accepts. Automaton has 15 states. Word has length 55 [2018-03-28 12:09:58,908 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-03-28 12:09:58,910 INFO L225 Difference]: With dead ends: 296 [2018-03-28 12:09:58,911 INFO L226 Difference]: Without dead ends: 288 [2018-03-28 12:09:58,911 INFO L567 BasicCegarLoop]: 0 DeclaredPredicates, 120 GetRequests, 96 SyntacticMatches, 0 SemanticMatches, 24 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 107 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=137, Invalid=513, Unknown=0, NotChecked=0, Total=650 [2018-03-28 12:09:58,912 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 288 states. [2018-03-28 12:09:58,936 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 288 to 257. [2018-03-28 12:09:58,936 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 257 states. [2018-03-28 12:09:58,938 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 257 states to 257 states and 279 transitions. [2018-03-28 12:09:58,939 INFO L78 Accepts]: Start accepts. Automaton has 257 states and 279 transitions. Word has length 55 [2018-03-28 12:09:58,939 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-03-28 12:09:58,939 INFO L459 AbstractCegarLoop]: Abstraction has 257 states and 279 transitions. [2018-03-28 12:09:58,939 INFO L460 AbstractCegarLoop]: Interpolant automaton has 15 states. [2018-03-28 12:09:58,939 INFO L276 IsEmpty]: Start isEmpty. Operand 257 states and 279 transitions. [2018-03-28 12:09:58,941 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 56 [2018-03-28 12:09:58,941 INFO L347 BasicCegarLoop]: Found error trace [2018-03-28 12:09:58,941 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, 1, 1, 1, 1, 1, 1, 1] [2018-03-28 12:09:58,942 INFO L408 AbstractCegarLoop]: === Iteration 14 === [cstrncpyErr3RequiresViolation, cstrncpyErr5RequiresViolation, cstrncpyErr4RequiresViolation, cstrncpyErr2RequiresViolation, cstrncpyErr0RequiresViolation, cstrncpyErr1RequiresViolation, mainErr1RequiresViolation, mainErr2EnsuresViolationMEMORY_LEAK, mainErr0RequiresViolation]=== [2018-03-28 12:09:58,942 INFO L82 PathProgramCache]: Analyzing trace with hash -609999223, 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 [2018-03-28 12:09:58,955 INFO L68 tionRefinementEngine]: Using refinement strategy FixedRefinementStrategy [2018-03-28 12:09:58,977 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-03-28 12:09:58,980 INFO L270 TraceCheckSpWp]: Computing forward predicates... [2018-03-28 12:09:59,005 INFO L700 Elim1Store]: detected not equals via solver [2018-03-28 12:09:59,006 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 [2018-03-28 12:09:59,010 INFO L700 Elim1Store]: detected not equals via solver [2018-03-28 12:09:59,011 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 [2018-03-28 12:09:59,011 INFO L267 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 1 xjuncts. [2018-03-28 12:09:59,017 INFO L267 ElimStorePlain]: Start of recursive call 2: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-03-28 12:09:59,023 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. [2018-03-28 12:09:59,023 INFO L202 ElimStorePlain]: Needed 3 recursive calls to eliminate 3 variables, input treesize:23, output treesize:15 [2018-03-28 12:09:59,057 WARN L1033 $PredicateComparison]: unable to prove that (exists ((|main_#t~malloc10.base| Int)) (let ((.cse0 (store |c_old(#valid)| |main_#t~malloc10.base| 1))) (and (= 0 (select |c_old(#valid)| |main_#t~malloc10.base|)) (= (select .cse0 |c_main_#t~malloc11.base|) 0) (= |c_#valid| (store (store .cse0 |c_main_#t~malloc11.base| 1) |main_#t~malloc10.base| 0))))) is different from true [2018-03-28 12:09:59,062 WARN L1033 $PredicateComparison]: unable to prove that (exists ((|main_#t~malloc11.base| Int) (|main_#t~malloc10.base| Int)) (let ((.cse0 (store |c_old(#valid)| |main_#t~malloc10.base| 1))) (and (= 0 (select |c_old(#valid)| |main_#t~malloc10.base|)) (= (store (store (store .cse0 |main_#t~malloc11.base| 1) |main_#t~malloc10.base| 0) |main_#t~malloc11.base| 0) |c_#valid|) (= (select .cse0 |main_#t~malloc11.base|) 0)))) is different from true [2018-03-28 12:09:59,070 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2018-03-28 12:09:59,071 INFO L314 TraceCheckSpWp]: Computing backward predicates... [2018-03-28 12:09:59,094 WARN L1011 $PredicateComparison]: unable to prove that (forall ((|v_main_#t~malloc11.base_20| Int)) (or (= (store (store (store |c_#valid| |v_main_#t~malloc11.base_20| 1) |c_main_#t~malloc10.base| 0) |v_main_#t~malloc11.base_20| 0) |c_old(#valid)|) (not (= 0 (select |c_#valid| |v_main_#t~malloc11.base_20|))))) is different from false [2018-03-28 12:09:59,098 WARN L1011 $PredicateComparison]: unable to prove that (forall ((|v_main_#t~malloc11.base_20| Int) (|v_main_#t~malloc10.base_19| Int)) (let ((.cse0 (store |c_#valid| |v_main_#t~malloc10.base_19| 1))) (or (not (= (select .cse0 |v_main_#t~malloc11.base_20|) 0)) (= (store (store (store .cse0 |v_main_#t~malloc11.base_20| 1) |v_main_#t~malloc10.base_19| 0) |v_main_#t~malloc11.base_20| 0) |c_old(#valid)|) (not (= 0 (select |c_#valid| |v_main_#t~malloc10.base_19|)))))) is different from false [2018-03-28 12:09:59,115 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2018-03-28 12:09:59,150 INFO L320 seRefinementStrategy]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2018-03-28 12:09:59,150 INFO L335 seRefinementStrategy]: Number of different interpolants: perfect sequences [7, 6] imperfect sequences [] total 11 [2018-03-28 12:09:59,150 INFO L442 AbstractCegarLoop]: Interpolant automaton has 12 states [2018-03-28 12:09:59,151 INFO L132 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2018-03-28 12:09:59,151 INFO L133 InterpolantAutomaton]: CoverageRelationStatistics Valid=23, Invalid=45, Unknown=4, NotChecked=60, Total=132 [2018-03-28 12:09:59,151 INFO L87 Difference]: Start difference. First operand 257 states and 279 transitions. Second operand 12 states. [2018-03-28 12:09:59,178 WARN L1011 $PredicateComparison]: unable to prove that (and (= |c_#valid| |c_old(#valid)|) (forall ((|v_main_#t~malloc11.base_20| Int) (|v_main_#t~malloc10.base_19| Int)) (let ((.cse0 (store |c_#valid| |v_main_#t~malloc10.base_19| 1))) (or (not (= (select .cse0 |v_main_#t~malloc11.base_20|) 0)) (= (store (store (store .cse0 |v_main_#t~malloc11.base_20| 1) |v_main_#t~malloc10.base_19| 0) |v_main_#t~malloc11.base_20| 0) |c_old(#valid)|) (not (= 0 (select |c_#valid| |v_main_#t~malloc10.base_19|))))))) is different from false [2018-03-28 12:09:59,585 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-03-28 12:09:59,585 INFO L93 Difference]: Finished difference Result 388 states and 419 transitions. [2018-03-28 12:09:59,586 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2018-03-28 12:09:59,586 INFO L78 Accepts]: Start accepts. Automaton has 12 states. Word has length 55 [2018-03-28 12:09:59,586 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-03-28 12:09:59,588 INFO L225 Difference]: With dead ends: 388 [2018-03-28 12:09:59,588 INFO L226 Difference]: Without dead ends: 368 [2018-03-28 12:09:59,589 INFO L567 BasicCegarLoop]: 0 DeclaredPredicates, 117 GetRequests, 99 SyntacticMatches, 2 SemanticMatches, 16 ConstructedPredicates, 5 IntricatePredicates, 0 DeprecatedPredicates, 12 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=45, Invalid=125, Unknown=6, NotChecked=130, Total=306 [2018-03-28 12:09:59,589 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 368 states. [2018-03-28 12:09:59,604 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 368 to 176. [2018-03-28 12:09:59,604 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 176 states. [2018-03-28 12:09:59,605 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 176 states to 176 states and 186 transitions. [2018-03-28 12:09:59,605 INFO L78 Accepts]: Start accepts. Automaton has 176 states and 186 transitions. Word has length 55 [2018-03-28 12:09:59,606 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-03-28 12:09:59,606 INFO L459 AbstractCegarLoop]: Abstraction has 176 states and 186 transitions. [2018-03-28 12:09:59,606 INFO L460 AbstractCegarLoop]: Interpolant automaton has 12 states. [2018-03-28 12:09:59,606 INFO L276 IsEmpty]: Start isEmpty. Operand 176 states and 186 transitions. [2018-03-28 12:09:59,607 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 61 [2018-03-28 12:09:59,607 INFO L347 BasicCegarLoop]: Found error trace [2018-03-28 12:09:59,607 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-03-28 12:09:59,607 INFO L408 AbstractCegarLoop]: === Iteration 15 === [cstrncpyErr3RequiresViolation, cstrncpyErr5RequiresViolation, cstrncpyErr4RequiresViolation, cstrncpyErr2RequiresViolation, cstrncpyErr0RequiresViolation, cstrncpyErr1RequiresViolation, mainErr1RequiresViolation, mainErr2EnsuresViolationMEMORY_LEAK, mainErr0RequiresViolation]=== [2018-03-28 12:09:59,607 INFO L82 PathProgramCache]: Analyzing trace with hash 1776017105, 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 [2018-03-28 12:09:59,615 INFO L68 tionRefinementEngine]: Using refinement strategy FixedRefinementStrategy [2018-03-28 12:09:59,633 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-03-28 12:09:59,636 INFO L270 TraceCheckSpWp]: Computing forward predicates... [2018-03-28 12:09:59,671 INFO L700 Elim1Store]: detected not equals via solver [2018-03-28 12:09:59,672 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 [2018-03-28 12:09:59,674 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 [2018-03-28 12:09:59,675 INFO L267 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 1 xjuncts. [2018-03-28 12:09:59,680 INFO L267 ElimStorePlain]: Start of recursive call 2: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-03-28 12:09:59,684 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. [2018-03-28 12:09:59,685 INFO L202 ElimStorePlain]: Needed 3 recursive calls to eliminate 3 variables, input treesize:23, output treesize:15 [2018-03-28 12:09:59,744 WARN L1033 $PredicateComparison]: unable to prove that (exists ((|main_#t~malloc10.base| Int)) (let ((.cse0 (store |c_old(#valid)| |main_#t~malloc10.base| 1))) (and (= 0 (select |c_old(#valid)| |main_#t~malloc10.base|)) (= (select .cse0 |c_main_#t~malloc11.base|) 0) (= |c_#valid| (store (store .cse0 |c_main_#t~malloc11.base| 1) |main_#t~malloc10.base| 0))))) is different from true [2018-03-28 12:09:59,749 WARN L1033 $PredicateComparison]: unable to prove that (exists ((|main_#t~malloc11.base| Int) (|main_#t~malloc10.base| Int)) (let ((.cse0 (store |c_old(#valid)| |main_#t~malloc10.base| 1))) (and (= 0 (select |c_old(#valid)| |main_#t~malloc10.base|)) (= (store (store (store .cse0 |main_#t~malloc11.base| 1) |main_#t~malloc10.base| 0) |main_#t~malloc11.base| 0) |c_#valid|) (= (select .cse0 |main_#t~malloc11.base|) 0)))) is different from true [2018-03-28 12:09:59,763 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-03-28 12:09:59,763 INFO L314 TraceCheckSpWp]: Computing backward predicates... [2018-03-28 12:09:59,787 WARN L1011 $PredicateComparison]: unable to prove that (forall ((|v_main_#t~malloc11.base_22| Int)) (or (not (= 0 (select |c_#valid| |v_main_#t~malloc11.base_22|))) (= (store (store (store |c_#valid| |v_main_#t~malloc11.base_22| 1) |c_main_#t~malloc10.base| 0) |v_main_#t~malloc11.base_22| 0) |c_old(#valid)|))) is different from false [2018-03-28 12:09:59,791 WARN L1011 $PredicateComparison]: unable to prove that (forall ((|v_main_#t~malloc10.base_21| Int) (|v_main_#t~malloc11.base_22| Int)) (let ((.cse0 (store |c_#valid| |v_main_#t~malloc10.base_21| 1))) (or (= (store (store (store .cse0 |v_main_#t~malloc11.base_22| 1) |v_main_#t~malloc10.base_21| 0) |v_main_#t~malloc11.base_22| 0) |c_old(#valid)|) (not (= (select .cse0 |v_main_#t~malloc11.base_22|) 0)) (not (= (select |c_#valid| |v_main_#t~malloc10.base_21|) 0))))) is different from false [2018-03-28 12:09:59,809 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-03-28 12:09:59,843 INFO L320 seRefinementStrategy]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2018-03-28 12:09:59,844 INFO L335 seRefinementStrategy]: Number of different interpolants: perfect sequences [7, 6] imperfect sequences [] total 11 [2018-03-28 12:09:59,844 INFO L442 AbstractCegarLoop]: Interpolant automaton has 12 states [2018-03-28 12:09:59,844 INFO L132 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2018-03-28 12:09:59,844 INFO L133 InterpolantAutomaton]: CoverageRelationStatistics Valid=23, Invalid=45, Unknown=4, NotChecked=60, Total=132 [2018-03-28 12:09:59,844 INFO L87 Difference]: Start difference. First operand 176 states and 186 transitions. Second operand 12 states. [2018-03-28 12:09:59,853 WARN L1011 $PredicateComparison]: unable to prove that (and (forall ((|v_main_#t~malloc10.base_21| Int) (|v_main_#t~malloc11.base_22| Int)) (let ((.cse0 (store |c_#valid| |v_main_#t~malloc10.base_21| 1))) (or (= (store (store (store .cse0 |v_main_#t~malloc11.base_22| 1) |v_main_#t~malloc10.base_21| 0) |v_main_#t~malloc11.base_22| 0) |c_old(#valid)|) (not (= (select .cse0 |v_main_#t~malloc11.base_22|) 0)) (not (= (select |c_#valid| |v_main_#t~malloc10.base_21|) 0))))) (= |c_#valid| |c_old(#valid)|)) is different from false [2018-03-28 12:10:00,450 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-03-28 12:10:00,450 INFO L93 Difference]: Finished difference Result 309 states and 325 transitions. [2018-03-28 12:10:00,450 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2018-03-28 12:10:00,450 INFO L78 Accepts]: Start accepts. Automaton has 12 states. Word has length 60 [2018-03-28 12:10:00,451 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-03-28 12:10:00,452 INFO L225 Difference]: With dead ends: 309 [2018-03-28 12:10:00,452 INFO L226 Difference]: Without dead ends: 297 [2018-03-28 12:10:00,452 INFO L567 BasicCegarLoop]: 0 DeclaredPredicates, 127 GetRequests, 109 SyntacticMatches, 2 SemanticMatches, 16 ConstructedPredicates, 5 IntricatePredicates, 0 DeprecatedPredicates, 12 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=45, Invalid=125, Unknown=6, NotChecked=130, Total=306 [2018-03-28 12:10:00,453 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 297 states. [2018-03-28 12:10:00,464 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 297 to 176. [2018-03-28 12:10:00,464 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 176 states. [2018-03-28 12:10:00,465 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 176 states to 176 states and 186 transitions. [2018-03-28 12:10:00,465 INFO L78 Accepts]: Start accepts. Automaton has 176 states and 186 transitions. Word has length 60 [2018-03-28 12:10:00,465 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-03-28 12:10:00,465 INFO L459 AbstractCegarLoop]: Abstraction has 176 states and 186 transitions. [2018-03-28 12:10:00,465 INFO L460 AbstractCegarLoop]: Interpolant automaton has 12 states. [2018-03-28 12:10:00,465 INFO L276 IsEmpty]: Start isEmpty. Operand 176 states and 186 transitions. [2018-03-28 12:10:00,466 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 62 [2018-03-28 12:10:00,466 INFO L347 BasicCegarLoop]: Found error trace [2018-03-28 12:10:00,466 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-03-28 12:10:00,466 INFO L408 AbstractCegarLoop]: === Iteration 16 === [cstrncpyErr3RequiresViolation, cstrncpyErr5RequiresViolation, cstrncpyErr4RequiresViolation, cstrncpyErr2RequiresViolation, cstrncpyErr0RequiresViolation, cstrncpyErr1RequiresViolation, mainErr1RequiresViolation, mainErr2EnsuresViolationMEMORY_LEAK, mainErr0RequiresViolation]=== [2018-03-28 12:10:00,466 INFO L82 PathProgramCache]: Analyzing trace with hash -105397872, 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 [2018-03-28 12:10:00,477 INFO L68 tionRefinementEngine]: Using refinement strategy FixedRefinementStrategy [2018-03-28 12:10:00,497 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-03-28 12:10:00,500 INFO L270 TraceCheckSpWp]: Computing forward predicates... [2018-03-28 12:10:00,520 INFO L700 Elim1Store]: detected not equals via solver [2018-03-28 12:10:00,521 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 [2018-03-28 12:10:00,523 INFO L700 Elim1Store]: detected not equals via solver [2018-03-28 12:10:00,523 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 [2018-03-28 12:10:00,523 INFO L267 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 1 xjuncts. [2018-03-28 12:10:00,527 INFO L267 ElimStorePlain]: Start of recursive call 2: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-03-28 12:10:00,530 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. [2018-03-28 12:10:00,530 INFO L202 ElimStorePlain]: Needed 3 recursive calls to eliminate 3 variables, input treesize:23, output treesize:15 [2018-03-28 12:10:00,575 WARN L1033 $PredicateComparison]: unable to prove that (exists ((|main_#t~malloc10.base| Int)) (let ((.cse0 (store |c_old(#valid)| |main_#t~malloc10.base| 1))) (and (= 0 (select |c_old(#valid)| |main_#t~malloc10.base|)) (= (select .cse0 |c_main_#t~malloc11.base|) 0) (= |c_#valid| (store (store .cse0 |c_main_#t~malloc11.base| 1) |main_#t~malloc10.base| 0))))) is different from true [2018-03-28 12:10:00,578 WARN L1033 $PredicateComparison]: unable to prove that (exists ((|main_#t~malloc11.base| Int) (|main_#t~malloc10.base| Int)) (let ((.cse0 (store |c_old(#valid)| |main_#t~malloc10.base| 1))) (and (= 0 (select |c_old(#valid)| |main_#t~malloc10.base|)) (= (store (store (store .cse0 |main_#t~malloc11.base| 1) |main_#t~malloc10.base| 0) |main_#t~malloc11.base| 0) |c_#valid|) (= (select .cse0 |main_#t~malloc11.base|) 0)))) is different from true [2018-03-28 12:10:00,587 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-03-28 12:10:00,587 INFO L314 TraceCheckSpWp]: Computing backward predicates... [2018-03-28 12:10:00,604 WARN L1011 $PredicateComparison]: unable to prove that (forall ((|v_main_#t~malloc11.base_24| Int)) (or (= (store (store (store |c_#valid| |v_main_#t~malloc11.base_24| 1) |c_main_#t~malloc10.base| 0) |v_main_#t~malloc11.base_24| 0) |c_old(#valid)|) (not (= 0 (select |c_#valid| |v_main_#t~malloc11.base_24|))))) is different from false [2018-03-28 12:10:00,607 WARN L1011 $PredicateComparison]: unable to prove that (forall ((|v_main_#t~malloc10.base_23| Int) (|v_main_#t~malloc11.base_24| Int)) (let ((.cse0 (store |c_#valid| |v_main_#t~malloc10.base_23| 1))) (or (not (= 0 (select .cse0 |v_main_#t~malloc11.base_24|))) (not (= (select |c_#valid| |v_main_#t~malloc10.base_23|) 0)) (= (store (store (store .cse0 |v_main_#t~malloc11.base_24| 1) |v_main_#t~malloc10.base_23| 0) |v_main_#t~malloc11.base_24| 0) |c_old(#valid)|)))) is different from false [2018-03-28 12:10:00,627 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-03-28 12:10:00,649 INFO L320 seRefinementStrategy]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2018-03-28 12:10:00,649 INFO L335 seRefinementStrategy]: Number of different interpolants: perfect sequences [7, 6] imperfect sequences [] total 11 [2018-03-28 12:10:00,650 INFO L442 AbstractCegarLoop]: Interpolant automaton has 12 states [2018-03-28 12:10:00,650 INFO L132 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2018-03-28 12:10:00,650 INFO L133 InterpolantAutomaton]: CoverageRelationStatistics Valid=23, Invalid=45, Unknown=4, NotChecked=60, Total=132 [2018-03-28 12:10:00,651 INFO L87 Difference]: Start difference. First operand 176 states and 186 transitions. Second operand 12 states. [2018-03-28 12:10:00,684 WARN L1011 $PredicateComparison]: unable to prove that (and (forall ((|v_main_#t~malloc10.base_23| Int) (|v_main_#t~malloc11.base_24| Int)) (let ((.cse0 (store |c_#valid| |v_main_#t~malloc10.base_23| 1))) (or (not (= 0 (select .cse0 |v_main_#t~malloc11.base_24|))) (not (= (select |c_#valid| |v_main_#t~malloc10.base_23|) 0)) (= (store (store (store .cse0 |v_main_#t~malloc11.base_24| 1) |v_main_#t~malloc10.base_23| 0) |v_main_#t~malloc11.base_24| 0) |c_old(#valid)|)))) (= |c_#valid| |c_old(#valid)|)) is different from false [2018-03-28 12:10:01,146 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-03-28 12:10:01,146 INFO L93 Difference]: Finished difference Result 250 states and 263 transitions. [2018-03-28 12:10:01,147 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2018-03-28 12:10:01,147 INFO L78 Accepts]: Start accepts. Automaton has 12 states. Word has length 61 [2018-03-28 12:10:01,147 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-03-28 12:10:01,148 INFO L225 Difference]: With dead ends: 250 [2018-03-28 12:10:01,148 INFO L226 Difference]: Without dead ends: 238 [2018-03-28 12:10:01,149 INFO L567 BasicCegarLoop]: 0 DeclaredPredicates, 129 GetRequests, 111 SyntacticMatches, 2 SemanticMatches, 16 ConstructedPredicates, 5 IntricatePredicates, 0 DeprecatedPredicates, 12 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=45, Invalid=125, Unknown=6, NotChecked=130, Total=306 [2018-03-28 12:10:01,149 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 238 states. [2018-03-28 12:10:01,159 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 238 to 115. [2018-03-28 12:10:01,159 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 115 states. [2018-03-28 12:10:01,160 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 115 states to 115 states and 121 transitions. [2018-03-28 12:10:01,160 INFO L78 Accepts]: Start accepts. Automaton has 115 states and 121 transitions. Word has length 61 [2018-03-28 12:10:01,160 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-03-28 12:10:01,161 INFO L459 AbstractCegarLoop]: Abstraction has 115 states and 121 transitions. [2018-03-28 12:10:01,161 INFO L460 AbstractCegarLoop]: Interpolant automaton has 12 states. [2018-03-28 12:10:01,161 INFO L276 IsEmpty]: Start isEmpty. Operand 115 states and 121 transitions. [2018-03-28 12:10:01,161 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 62 [2018-03-28 12:10:01,161 INFO L347 BasicCegarLoop]: Found error trace [2018-03-28 12:10:01,161 INFO L355 BasicCegarLoop]: trace histogram [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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-03-28 12:10:01,161 INFO L408 AbstractCegarLoop]: === Iteration 17 === [cstrncpyErr3RequiresViolation, cstrncpyErr5RequiresViolation, cstrncpyErr4RequiresViolation, cstrncpyErr2RequiresViolation, cstrncpyErr0RequiresViolation, cstrncpyErr1RequiresViolation, mainErr1RequiresViolation, mainErr2EnsuresViolationMEMORY_LEAK, mainErr0RequiresViolation]=== [2018-03-28 12:10:01,162 INFO L82 PathProgramCache]: Analyzing trace with hash -1803017946, 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 [2018-03-28 12:10:01,174 INFO L68 tionRefinementEngine]: Using refinement strategy FixedRefinementStrategy [2018-03-28 12:10:01,197 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-03-28 12:10:01,200 INFO L270 TraceCheckSpWp]: Computing forward predicates... [2018-03-28 12:10:01,203 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 [2018-03-28 12:10:01,204 INFO L267 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2018-03-28 12:10:01,209 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 [2018-03-28 12:10:01,210 INFO L267 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 1 xjuncts. [2018-03-28 12:10:01,219 INFO L267 ElimStorePlain]: Start of recursive call 1: 2 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-03-28 12:10:01,219 INFO L202 ElimStorePlain]: Needed 3 recursive calls to eliminate 2 variables, input treesize:16, output treesize:14 [2018-03-28 12:10:01,240 INFO L700 Elim1Store]: detected not equals via solver [2018-03-28 12:10:01,240 INFO L700 Elim1Store]: detected not equals via solver [2018-03-28 12:10:01,241 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 [2018-03-28 12:10:01,241 INFO L267 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2018-03-28 12:10:01,247 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 [2018-03-28 12:10:01,247 INFO L267 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 1 xjuncts. [2018-03-28 12:10:01,251 INFO L267 ElimStorePlain]: Start of recursive call 1: 1 dim-0 vars, 2 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-03-28 12:10:01,251 INFO L202 ElimStorePlain]: Needed 3 recursive calls to eliminate 3 variables, input treesize:25, output treesize:13 [2018-03-28 12:10:01,587 INFO L134 CoverageAnalysis]: Checked inductivity of 8 backedges. 0 proven. 8 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-03-28 12:10:01,587 INFO L314 TraceCheckSpWp]: Computing backward predicates... [2018-03-28 12:10:02,301 INFO L134 CoverageAnalysis]: Checked inductivity of 8 backedges. 0 proven. 8 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-03-28 12:10:02,323 INFO L320 seRefinementStrategy]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2018-03-28 12:10:02,323 INFO L335 seRefinementStrategy]: Number of different interpolants: perfect sequences [] imperfect sequences [25, 24] total 48 [2018-03-28 12:10:02,323 INFO L442 AbstractCegarLoop]: Interpolant automaton has 49 states [2018-03-28 12:10:02,323 INFO L132 InterpolantAutomaton]: Constructing interpolant automaton starting with 49 interpolants. [2018-03-28 12:10:02,324 INFO L133 InterpolantAutomaton]: CoverageRelationStatistics Valid=152, Invalid=2200, Unknown=0, NotChecked=0, Total=2352 [2018-03-28 12:10:02,324 INFO L87 Difference]: Start difference. First operand 115 states and 121 transitions. Second operand 49 states. [2018-03-28 12:10:05,914 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-03-28 12:10:05,914 INFO L93 Difference]: Finished difference Result 178 states and 186 transitions. [2018-03-28 12:10:05,914 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 64 states. [2018-03-28 12:10:05,914 INFO L78 Accepts]: Start accepts. Automaton has 49 states. Word has length 61 [2018-03-28 12:10:05,914 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-03-28 12:10:05,915 INFO L225 Difference]: With dead ends: 178 [2018-03-28 12:10:05,915 INFO L226 Difference]: Without dead ends: 177 [2018-03-28 12:10:05,918 INFO L567 BasicCegarLoop]: 0 DeclaredPredicates, 181 GetRequests, 74 SyntacticMatches, 0 SemanticMatches, 107 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2327 ImplicationChecksByTransitivity, 3.8s TimeCoverageRelationStatistics Valid=1219, Invalid=10553, Unknown=0, NotChecked=0, Total=11772 [2018-03-28 12:10:05,918 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 177 states. [2018-03-28 12:10:05,928 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 177 to 138. [2018-03-28 12:10:05,928 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 138 states. [2018-03-28 12:10:05,929 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 138 states to 138 states and 144 transitions. [2018-03-28 12:10:05,929 INFO L78 Accepts]: Start accepts. Automaton has 138 states and 144 transitions. Word has length 61 [2018-03-28 12:10:05,929 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-03-28 12:10:05,929 INFO L459 AbstractCegarLoop]: Abstraction has 138 states and 144 transitions. [2018-03-28 12:10:05,929 INFO L460 AbstractCegarLoop]: Interpolant automaton has 49 states. [2018-03-28 12:10:05,929 INFO L276 IsEmpty]: Start isEmpty. Operand 138 states and 144 transitions. [2018-03-28 12:10:05,930 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 68 [2018-03-28 12:10:05,930 INFO L347 BasicCegarLoop]: Found error trace [2018-03-28 12:10:05,930 INFO L355 BasicCegarLoop]: trace histogram [3, 3, 3, 3, 3, 3, 3, 3, 3, 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, 1, 1] [2018-03-28 12:10:05,930 INFO L408 AbstractCegarLoop]: === Iteration 18 === [cstrncpyErr3RequiresViolation, cstrncpyErr5RequiresViolation, cstrncpyErr4RequiresViolation, cstrncpyErr2RequiresViolation, cstrncpyErr0RequiresViolation, cstrncpyErr1RequiresViolation, mainErr1RequiresViolation, mainErr2EnsuresViolationMEMORY_LEAK, mainErr0RequiresViolation]=== [2018-03-28 12:10:05,930 INFO L82 PathProgramCache]: Analyzing trace with hash -1306320949, 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 [2018-03-28 12:10:05,936 INFO L68 tionRefinementEngine]: Using refinement strategy FixedRefinementStrategy [2018-03-28 12:10:05,955 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-03-28 12:10:05,957 INFO L270 TraceCheckSpWp]: Computing forward predicates... [2018-03-28 12:10:05,959 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 [2018-03-28 12:10:05,959 INFO L267 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2018-03-28 12:10:05,960 INFO L267 ElimStorePlain]: Start of recursive call 1: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-03-28 12:10:05,960 INFO L202 ElimStorePlain]: Needed 2 recursive calls to eliminate 1 variables, input treesize:6, output treesize:5 [2018-03-28 12:10:05,965 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 [2018-03-28 12:10:05,966 INFO L267 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2018-03-28 12:10:05,971 INFO L700 Elim1Store]: detected not equals via solver [2018-03-28 12:10:05,971 INFO L700 Elim1Store]: detected not equals via solver [2018-03-28 12:10:05,972 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 [2018-03-28 12:10:05,972 INFO L267 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 1 xjuncts. [2018-03-28 12:10:05,975 INFO L267 ElimStorePlain]: Start of recursive call 1: 2 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-03-28 12:10:05,975 INFO L202 ElimStorePlain]: Needed 3 recursive calls to eliminate 2 variables, input treesize:20, output treesize:13 [2018-03-28 12:10:05,988 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 [2018-03-28 12:10:05,989 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 [2018-03-28 12:10:05,989 INFO L267 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 1 xjuncts. [2018-03-28 12:10:05,990 INFO L267 ElimStorePlain]: Start of recursive call 2: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-03-28 12:10:05,993 INFO L267 ElimStorePlain]: Start of recursive call 1: 1 dim-2 vars, End of recursive call: and 1 xjuncts. [2018-03-28 12:10:05,993 INFO L202 ElimStorePlain]: Needed 3 recursive calls to eliminate 1 variables, input treesize:20, output treesize:16 [2018-03-28 12:10:06,104 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 23 treesize of output 24 [2018-03-28 12:10:06,106 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 8 treesize of output 7 [2018-03-28 12:10:06,106 INFO L267 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 1 xjuncts. [2018-03-28 12:10:06,110 INFO L267 ElimStorePlain]: Start of recursive call 2: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-03-28 12:10:06,114 INFO L267 ElimStorePlain]: Start of recursive call 1: 3 dim-0 vars, 1 dim-2 vars, End of recursive call: and 1 xjuncts. [2018-03-28 12:10:06,115 INFO L202 ElimStorePlain]: Needed 3 recursive calls to eliminate 4 variables, input treesize:30, output treesize:15 [2018-03-28 12:10:06,166 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 21 treesize of output 17 [2018-03-28 12:10:06,172 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 17 treesize of output 14 [2018-03-28 12:10:06,172 INFO L267 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 2 xjuncts. [2018-03-28 12:10:06,174 INFO L267 ElimStorePlain]: Start of recursive call 2: 1 dim-1 vars, End of recursive call: and 2 xjuncts. [2018-03-28 12:10:06,179 INFO L267 ElimStorePlain]: Start of recursive call 1: 1 dim-2 vars, End of recursive call: and 2 xjuncts. [2018-03-28 12:10:06,179 INFO L202 ElimStorePlain]: Needed 3 recursive calls to eliminate 1 variables, input treesize:29, output treesize:32 [2018-03-28 12:10:06,248 INFO L134 CoverageAnalysis]: Checked inductivity of 35 backedges. 0 proven. 35 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-03-28 12:10:06,249 INFO L314 TraceCheckSpWp]: Computing backward predicates... [2018-03-28 12:10:07,164 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 2 new quantified variables, introduced 0 case distinctions, treesize of input 37 treesize of output 28 [2018-03-28 12:10:07,179 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 [2018-03-28 12:10:07,180 INFO L267 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 1 xjuncts. [2018-03-28 12:10:07,193 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 20 treesize of output 18 [2018-03-28 12:10:07,196 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 9 treesize of output 1 [2018-03-28 12:10:07,196 INFO L267 ElimStorePlain]: Start of recursive call 5: End of recursive call: and 1 xjuncts. [2018-03-28 12:10:07,201 INFO L267 ElimStorePlain]: Start of recursive call 4: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-03-28 12:10:07,203 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 [2018-03-28 12:10:07,207 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 1 new quantified variables, introduced 0 case distinctions, treesize of input 15 treesize of output 10 [2018-03-28 12:10:07,207 INFO L267 ElimStorePlain]: Start of recursive call 7: End of recursive call: and 1 xjuncts. [2018-03-28 12:10:07,210 INFO L267 ElimStorePlain]: Start of recursive call 6: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-03-28 12:10:07,224 INFO L267 ElimStorePlain]: Start of recursive call 2: 1 dim-1 vars, 1 dim-2 vars, End of recursive call: and 4 xjuncts. [2018-03-28 12:10:07,243 INFO L267 ElimStorePlain]: Start of recursive call 1: 3 dim-0 vars, 1 dim-2 vars, End of recursive call: and 4 xjuncts. [2018-03-28 12:10:07,244 INFO L202 ElimStorePlain]: Needed 7 recursive calls to eliminate 4 variables, input treesize:55, output treesize:84 [2018-03-28 12:10:07,491 INFO L134 CoverageAnalysis]: Checked inductivity of 35 backedges. 0 proven. 35 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-03-28 12:10:07,512 INFO L320 seRefinementStrategy]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2018-03-28 12:10:07,513 INFO L335 seRefinementStrategy]: Number of different interpolants: perfect sequences [] imperfect sequences [21, 21] total 41 [2018-03-28 12:10:07,513 INFO L442 AbstractCegarLoop]: Interpolant automaton has 42 states [2018-03-28 12:10:07,513 INFO L132 InterpolantAutomaton]: Constructing interpolant automaton starting with 42 interpolants. [2018-03-28 12:10:07,514 INFO L133 InterpolantAutomaton]: CoverageRelationStatistics Valid=119, Invalid=1603, Unknown=0, NotChecked=0, Total=1722 [2018-03-28 12:10:07,514 INFO L87 Difference]: Start difference. First operand 138 states and 144 transitions. Second operand 42 states. [2018-03-28 12:10:08,902 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-03-28 12:10:08,902 INFO L93 Difference]: Finished difference Result 171 states and 177 transitions. [2018-03-28 12:10:08,903 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 36 states. [2018-03-28 12:10:08,903 INFO L78 Accepts]: Start accepts. Automaton has 42 states. Word has length 67 [2018-03-28 12:10:08,903 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-03-28 12:10:08,904 INFO L225 Difference]: With dead ends: 171 [2018-03-28 12:10:08,904 INFO L226 Difference]: Without dead ends: 170 [2018-03-28 12:10:08,905 INFO L567 BasicCegarLoop]: 0 DeclaredPredicates, 158 GetRequests, 93 SyntacticMatches, 0 SemanticMatches, 65 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 689 ImplicationChecksByTransitivity, 2.1s TimeCoverageRelationStatistics Valid=416, Invalid=4006, Unknown=0, NotChecked=0, Total=4422 [2018-03-28 12:10:08,906 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 170 states. [2018-03-28 12:10:08,921 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 170 to 138. [2018-03-28 12:10:08,921 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 138 states. [2018-03-28 12:10:08,922 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 138 states to 138 states and 143 transitions. [2018-03-28 12:10:08,922 INFO L78 Accepts]: Start accepts. Automaton has 138 states and 143 transitions. Word has length 67 [2018-03-28 12:10:08,923 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-03-28 12:10:08,923 INFO L459 AbstractCegarLoop]: Abstraction has 138 states and 143 transitions. [2018-03-28 12:10:08,923 INFO L460 AbstractCegarLoop]: Interpolant automaton has 42 states. [2018-03-28 12:10:08,923 INFO L276 IsEmpty]: Start isEmpty. Operand 138 states and 143 transitions. [2018-03-28 12:10:08,923 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 80 [2018-03-28 12:10:08,923 INFO L347 BasicCegarLoop]: Found error trace [2018-03-28 12:10:08,924 INFO L355 BasicCegarLoop]: trace histogram [4, 4, 4, 4, 4, 4, 4, 3, 3, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-03-28 12:10:08,924 INFO L408 AbstractCegarLoop]: === Iteration 19 === [cstrncpyErr3RequiresViolation, cstrncpyErr5RequiresViolation, cstrncpyErr4RequiresViolation, cstrncpyErr2RequiresViolation, cstrncpyErr0RequiresViolation, cstrncpyErr1RequiresViolation, mainErr1RequiresViolation, mainErr2EnsuresViolationMEMORY_LEAK, mainErr0RequiresViolation]=== [2018-03-28 12:10:08,924 INFO L82 PathProgramCache]: Analyzing trace with hash 239796070, 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 [2018-03-28 12:10:08,932 INFO L68 tionRefinementEngine]: Using refinement strategy FixedRefinementStrategy [2018-03-28 12:10:08,954 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-03-28 12:10:08,958 INFO L270 TraceCheckSpWp]: Computing forward predicates... [2018-03-28 12:10:08,961 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 [2018-03-28 12:10:08,961 INFO L267 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2018-03-28 12:10:08,965 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 [2018-03-28 12:10:08,966 INFO L267 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 1 xjuncts. [2018-03-28 12:10:08,969 INFO L267 ElimStorePlain]: Start of recursive call 1: 2 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-03-28 12:10:08,969 INFO L202 ElimStorePlain]: Needed 3 recursive calls to eliminate 2 variables, input treesize:16, output treesize:14 [2018-03-28 12:10:08,979 INFO L700 Elim1Store]: detected not equals via solver [2018-03-28 12:10:08,980 INFO L700 Elim1Store]: detected not equals via solver [2018-03-28 12:10:08,980 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 [2018-03-28 12:10:08,980 INFO L267 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2018-03-28 12:10:08,986 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 [2018-03-28 12:10:08,986 INFO L267 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 1 xjuncts. [2018-03-28 12:10:08,990 INFO L267 ElimStorePlain]: Start of recursive call 1: 1 dim-0 vars, 2 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-03-28 12:10:08,990 INFO L202 ElimStorePlain]: Needed 3 recursive calls to eliminate 3 variables, input treesize:25, output treesize:13 [2018-03-28 12:10:09,650 INFO L134 CoverageAnalysis]: Checked inductivity of 51 backedges. 0 proven. 51 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-03-28 12:10:09,650 INFO L314 TraceCheckSpWp]: Computing backward predicates... [2018-03-28 12:10:11,103 INFO L134 CoverageAnalysis]: Checked inductivity of 51 backedges. 0 proven. 51 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-03-28 12:10:11,124 INFO L320 seRefinementStrategy]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2018-03-28 12:10:11,124 INFO L335 seRefinementStrategy]: Number of different interpolants: perfect sequences [] imperfect sequences [35, 34] total 68 [2018-03-28 12:10:11,124 INFO L442 AbstractCegarLoop]: Interpolant automaton has 69 states [2018-03-28 12:10:11,125 INFO L132 InterpolantAutomaton]: Constructing interpolant automaton starting with 69 interpolants. [2018-03-28 12:10:11,126 INFO L133 InterpolantAutomaton]: CoverageRelationStatistics Valid=282, Invalid=4410, Unknown=0, NotChecked=0, Total=4692 [2018-03-28 12:10:11,126 INFO L87 Difference]: Start difference. First operand 138 states and 143 transitions. Second operand 69 states. [2018-03-28 12:10:19,306 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-03-28 12:10:19,307 INFO L93 Difference]: Finished difference Result 233 states and 242 transitions. [2018-03-28 12:10:19,307 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 108 states. [2018-03-28 12:10:19,307 INFO L78 Accepts]: Start accepts. Automaton has 69 states. Word has length 79 [2018-03-28 12:10:19,307 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-03-28 12:10:19,308 INFO L225 Difference]: With dead ends: 233 [2018-03-28 12:10:19,308 INFO L226 Difference]: Without dead ends: 232 [2018-03-28 12:10:19,313 INFO L567 BasicCegarLoop]: 0 DeclaredPredicates, 261 GetRequests, 90 SyntacticMatches, 0 SemanticMatches, 171 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 6957 ImplicationChecksByTransitivity, 9.0s TimeCoverageRelationStatistics Valid=2849, Invalid=26907, Unknown=0, NotChecked=0, Total=29756 [2018-03-28 12:10:19,313 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 232 states. [2018-03-28 12:10:19,331 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 232 to 200. [2018-03-28 12:10:19,331 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 200 states. [2018-03-28 12:10:19,332 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 200 states to 200 states and 206 transitions. [2018-03-28 12:10:19,333 INFO L78 Accepts]: Start accepts. Automaton has 200 states and 206 transitions. Word has length 79 [2018-03-28 12:10:19,333 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-03-28 12:10:19,333 INFO L459 AbstractCegarLoop]: Abstraction has 200 states and 206 transitions. [2018-03-28 12:10:19,333 INFO L460 AbstractCegarLoop]: Interpolant automaton has 69 states. [2018-03-28 12:10:19,333 INFO L276 IsEmpty]: Start isEmpty. Operand 200 states and 206 transitions. [2018-03-28 12:10:19,334 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 83 [2018-03-28 12:10:19,334 INFO L347 BasicCegarLoop]: Found error trace [2018-03-28 12:10:19,335 INFO L355 BasicCegarLoop]: trace histogram [4, 4, 4, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-03-28 12:10:19,335 INFO L408 AbstractCegarLoop]: === Iteration 20 === [cstrncpyErr3RequiresViolation, cstrncpyErr5RequiresViolation, cstrncpyErr4RequiresViolation, cstrncpyErr2RequiresViolation, cstrncpyErr0RequiresViolation, cstrncpyErr1RequiresViolation, mainErr1RequiresViolation, mainErr2EnsuresViolationMEMORY_LEAK, mainErr0RequiresViolation]=== [2018-03-28 12:10:19,335 INFO L82 PathProgramCache]: Analyzing trace with hash -742476633, now seen corresponding path program 3 times No working directory specified, using /storage/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 21 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 21 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2018-03-28 12:10:19,344 INFO L68 tionRefinementEngine]: Using refinement strategy FixedRefinementStrategy [2018-03-28 12:10:19,371 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-03-28 12:10:19,375 INFO L270 TraceCheckSpWp]: Computing forward predicates... [2018-03-28 12:10:19,383 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 [2018-03-28 12:10:19,384 INFO L267 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2018-03-28 12:10:19,387 INFO L267 ElimStorePlain]: Start of recursive call 1: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-03-28 12:10:19,388 INFO L202 ElimStorePlain]: Needed 2 recursive calls to eliminate 1 variables, input treesize:6, output treesize:5 [2018-03-28 12:10:19,399 INFO L700 Elim1Store]: detected not equals via solver [2018-03-28 12:10:19,400 INFO L700 Elim1Store]: detected not equals via solver [2018-03-28 12:10:19,401 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 [2018-03-28 12:10:19,401 INFO L267 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2018-03-28 12:10:19,408 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 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 6 treesize of output 5 [2018-03-28 12:10:19,409 INFO L267 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 1 xjuncts. [2018-03-28 12:10:19,424 INFO L267 ElimStorePlain]: Start of recursive call 1: 2 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-03-28 12:10:19,424 INFO L202 ElimStorePlain]: Needed 3 recursive calls to eliminate 2 variables, input treesize:20, output treesize:13 [2018-03-28 12:10:19,441 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 [2018-03-28 12:10:19,442 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 [2018-03-28 12:10:19,443 INFO L267 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 1 xjuncts. [2018-03-28 12:10:19,444 INFO L267 ElimStorePlain]: Start of recursive call 2: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-03-28 12:10:19,447 INFO L267 ElimStorePlain]: Start of recursive call 1: 1 dim-2 vars, End of recursive call: and 1 xjuncts. [2018-03-28 12:10:19,447 INFO L202 ElimStorePlain]: Needed 3 recursive calls to eliminate 1 variables, input treesize:20, output treesize:16 [2018-03-28 12:10:19,600 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 23 treesize of output 24 [2018-03-28 12:10:19,604 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 8 treesize of output 7 [2018-03-28 12:10:19,605 INFO L267 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 1 xjuncts. [2018-03-28 12:10:19,609 INFO L267 ElimStorePlain]: Start of recursive call 2: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-03-28 12:10:19,614 INFO L267 ElimStorePlain]: Start of recursive call 1: 2 dim-0 vars, 1 dim-2 vars, End of recursive call: and 1 xjuncts. [2018-03-28 12:10:19,614 INFO L202 ElimStorePlain]: Needed 3 recursive calls to eliminate 3 variables, input treesize:30, output treesize:19 [2018-03-28 12:10:19,693 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 23 treesize of output 24 [2018-03-28 12:10:19,695 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 8 treesize of output 7 [2018-03-28 12:10:19,695 INFO L267 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 1 xjuncts. [2018-03-28 12:10:19,699 INFO L267 ElimStorePlain]: Start of recursive call 2: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-03-28 12:10:19,705 INFO L267 ElimStorePlain]: Start of recursive call 1: 3 dim-0 vars, 1 dim-2 vars, End of recursive call: and 1 xjuncts. [2018-03-28 12:10:19,705 INFO L202 ElimStorePlain]: Needed 3 recursive calls to eliminate 4 variables, input treesize:30, output treesize:15 [2018-03-28 12:10:19,760 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 21 treesize of output 17 [2018-03-28 12:10:19,765 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 17 treesize of output 14 [2018-03-28 12:10:19,766 INFO L267 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 2 xjuncts. [2018-03-28 12:10:19,768 INFO L267 ElimStorePlain]: Start of recursive call 2: 1 dim-1 vars, End of recursive call: and 2 xjuncts. [2018-03-28 12:10:19,774 INFO L267 ElimStorePlain]: Start of recursive call 1: 1 dim-2 vars, End of recursive call: and 2 xjuncts. [2018-03-28 12:10:19,774 INFO L202 ElimStorePlain]: Needed 3 recursive calls to eliminate 1 variables, input treesize:29, output treesize:32 [2018-03-28 12:10:19,855 INFO L134 CoverageAnalysis]: Checked inductivity of 75 backedges. 7 proven. 68 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-03-28 12:10:19,855 INFO L314 TraceCheckSpWp]: Computing backward predicates... [2018-03-28 12:10:21,160 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 2 new quantified variables, introduced 0 case distinctions, treesize of input 42 treesize of output 33 [2018-03-28 12:10:21,170 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 [2018-03-28 12:10:21,171 INFO L267 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 1 xjuncts. [2018-03-28 12:10:21,181 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 1 new quantified variables, introduced 0 case distinctions, treesize of input 31 treesize of output 27 [2018-03-28 12:10:21,190 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 1 new quantified variables, introduced 2 case distinctions, treesize of input 23 treesize of output 34 [2018-03-28 12:10:21,213 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 1 new quantified variables, introduced 1 case distinctions, treesize of input 25 treesize of output 28 [2018-03-28 12:10:21,214 INFO L267 ElimStorePlain]: Start of recursive call 6: End of recursive call: and 2 xjuncts. [2018-03-28 12:10:21,216 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 24 treesize of output 18 [2018-03-28 12:10:21,216 INFO L267 ElimStorePlain]: Start of recursive call 7: End of recursive call: and 1 xjuncts. [2018-03-28 12:10:21,222 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 1 new quantified variables, introduced 1 case distinctions, treesize of input 27 treesize of output 30 [2018-03-28 12:10:21,222 INFO L267 ElimStorePlain]: Start of recursive call 8: End of recursive call: and 2 xjuncts. [2018-03-28 12:10:21,266 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 1 new quantified variables, introduced 2 case distinctions, treesize of input 28 treesize of output 38 [2018-03-28 12:10:21,266 INFO L267 ElimStorePlain]: Start of recursive call 9: End of recursive call: and 3 xjuncts. [2018-03-28 12:10:21,272 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 25 treesize of output 21 [2018-03-28 12:10:21,273 INFO L267 ElimStorePlain]: Start of recursive call 10: End of recursive call: and 2 xjuncts. [2018-03-28 12:10:21,298 INFO L267 ElimStorePlain]: Start of recursive call 5: 2 dim-1 vars, End of recursive call: and 4 xjuncts. [2018-03-28 12:10:21,317 INFO L267 ElimStorePlain]: Start of recursive call 4: 1 dim-1 vars, End of recursive call: and 4 xjuncts. [2018-03-28 12:10:21,323 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 36 treesize of output 38 [2018-03-28 12:10:21,326 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 1 new quantified variables, introduced 0 case distinctions, treesize of input 33 treesize of output 28 [2018-03-28 12:10:21,327 INFO L267 ElimStorePlain]: Start of recursive call 12: End of recursive call: and 1 xjuncts. [2018-03-28 12:10:21,351 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 2 new quantified variables, introduced 4 case distinctions, treesize of input 30 treesize of output 60 [2018-03-28 12:10:21,421 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 1 new quantified variables, introduced 2 case distinctions, treesize of input 26 treesize of output 36 [2018-03-28 12:10:21,421 INFO L267 ElimStorePlain]: Start of recursive call 14: End of recursive call: and 3 xjuncts. [2018-03-28 12:10:21,432 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 1 new quantified variables, introduced 2 case distinctions, treesize of input 28 treesize of output 38 [2018-03-28 12:10:21,432 INFO L267 ElimStorePlain]: Start of recursive call 15: End of recursive call: and 3 xjuncts. [2018-03-28 12:10:21,494 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 32 treesize of output 28 [2018-03-28 12:10:21,494 INFO L267 ElimStorePlain]: Start of recursive call 16: End of recursive call: and 2 xjuncts. [2018-03-28 12:10:21,538 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 1 new quantified variables, introduced 1 case distinctions, treesize of input 24 treesize of output 24 [2018-03-28 12:10:21,538 INFO L267 ElimStorePlain]: Start of recursive call 17: End of recursive call: and 2 xjuncts. [2018-03-28 12:10:21,551 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 2 select indices, 2 select index equivalence classes, 1 disjoint index pairs (out of 1 index pairs), introduced 1 new quantified variables, introduced 1 case distinctions, treesize of input 26 treesize of output 26 [2018-03-28 12:10:21,551 INFO L267 ElimStorePlain]: Start of recursive call 18: End of recursive call: and 2 xjuncts. [2018-03-28 12:10:21,574 INFO L267 ElimStorePlain]: Start of recursive call 13: 3 dim-1 vars, End of recursive call: and 3 xjuncts. [2018-03-28 12:10:21,601 INFO L267 ElimStorePlain]: Start of recursive call 11: 3 dim-1 vars, End of recursive call: and 3 xjuncts. [2018-03-28 12:10:21,602 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 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 24 treesize of output 20 [2018-03-28 12:10:21,604 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 1 new quantified variables, introduced 0 case distinctions, treesize of input 17 treesize of output 12 [2018-03-28 12:10:21,605 INFO L267 ElimStorePlain]: Start of recursive call 20: End of recursive call: and 1 xjuncts. [2018-03-28 12:10:21,608 INFO L267 ElimStorePlain]: Start of recursive call 19: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-03-28 12:10:21,634 INFO L267 ElimStorePlain]: Start of recursive call 2: 1 dim-1 vars, 1 dim-2 vars, End of recursive call: and 5 xjuncts. [2018-03-28 12:10:21,663 INFO L267 ElimStorePlain]: Start of recursive call 1: 5 dim-0 vars, 1 dim-2 vars, End of recursive call: and 4 xjuncts. [2018-03-28 12:10:21,663 INFO L202 ElimStorePlain]: Needed 20 recursive calls to eliminate 6 variables, input treesize:60, output treesize:84 [2018-03-28 12:10:21,856 INFO L134 CoverageAnalysis]: Checked inductivity of 75 backedges. 0 proven. 75 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-03-28 12:10:21,876 INFO L320 seRefinementStrategy]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2018-03-28 12:10:21,876 INFO L335 seRefinementStrategy]: Number of different interpolants: perfect sequences [] imperfect sequences [26, 26] total 51 [2018-03-28 12:10:21,877 INFO L442 AbstractCegarLoop]: Interpolant automaton has 52 states [2018-03-28 12:10:21,877 INFO L132 InterpolantAutomaton]: Constructing interpolant automaton starting with 52 interpolants. [2018-03-28 12:10:21,877 INFO L133 InterpolantAutomaton]: CoverageRelationStatistics Valid=178, Invalid=2474, Unknown=0, NotChecked=0, Total=2652 [2018-03-28 12:10:21,877 INFO L87 Difference]: Start difference. First operand 200 states and 206 transitions. Second operand 52 states. [2018-03-28 12:10:24,894 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-03-28 12:10:24,894 INFO L93 Difference]: Finished difference Result 224 states and 231 transitions. [2018-03-28 12:10:24,895 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 48 states. [2018-03-28 12:10:24,895 INFO L78 Accepts]: Start accepts. Automaton has 52 states. Word has length 82 [2018-03-28 12:10:24,895 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-03-28 12:10:24,896 INFO L225 Difference]: With dead ends: 224 [2018-03-28 12:10:24,896 INFO L226 Difference]: Without dead ends: 223 [2018-03-28 12:10:24,897 INFO L567 BasicCegarLoop]: 0 DeclaredPredicates, 207 GetRequests, 112 SyntacticMatches, 1 SemanticMatches, 94 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1717 ImplicationChecksByTransitivity, 4.0s TimeCoverageRelationStatistics Valid=1417, Invalid=7703, Unknown=0, NotChecked=0, Total=9120 [2018-03-28 12:10:24,898 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 223 states. [2018-03-28 12:10:24,929 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 223 to 199. [2018-03-28 12:10:24,929 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 199 states. [2018-03-28 12:10:24,930 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 199 states to 199 states and 205 transitions. [2018-03-28 12:10:24,930 INFO L78 Accepts]: Start accepts. Automaton has 199 states and 205 transitions. Word has length 82 [2018-03-28 12:10:24,931 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-03-28 12:10:24,931 INFO L459 AbstractCegarLoop]: Abstraction has 199 states and 205 transitions. [2018-03-28 12:10:24,931 INFO L460 AbstractCegarLoop]: Interpolant automaton has 52 states. [2018-03-28 12:10:24,931 INFO L276 IsEmpty]: Start isEmpty. Operand 199 states and 205 transitions. [2018-03-28 12:10:24,931 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 83 [2018-03-28 12:10:24,932 INFO L347 BasicCegarLoop]: Found error trace [2018-03-28 12:10:24,932 INFO L355 BasicCegarLoop]: trace histogram [3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 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, 1] [2018-03-28 12:10:24,932 INFO L408 AbstractCegarLoop]: === Iteration 21 === [cstrncpyErr3RequiresViolation, cstrncpyErr5RequiresViolation, cstrncpyErr4RequiresViolation, cstrncpyErr2RequiresViolation, cstrncpyErr0RequiresViolation, cstrncpyErr1RequiresViolation, mainErr1RequiresViolation, mainErr2EnsuresViolationMEMORY_LEAK, mainErr0RequiresViolation]=== [2018-03-28 12:10:24,932 INFO L82 PathProgramCache]: Analyzing trace with hash 466654152, now seen corresponding path program 1 times No working directory specified, using /storage/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 22 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 22 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2018-03-28 12:10:24,940 INFO L68 tionRefinementEngine]: Using refinement strategy FixedRefinementStrategy [2018-03-28 12:10:24,967 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-03-28 12:10:24,971 INFO L270 TraceCheckSpWp]: Computing forward predicates... [2018-03-28 12:10:24,973 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 [2018-03-28 12:10:24,973 INFO L267 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2018-03-28 12:10:24,979 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 [2018-03-28 12:10:24,979 INFO L267 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 1 xjuncts. [2018-03-28 12:10:24,983 INFO L267 ElimStorePlain]: Start of recursive call 1: 2 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-03-28 12:10:24,983 INFO L202 ElimStorePlain]: Needed 3 recursive calls to eliminate 2 variables, input treesize:16, output treesize:14 [2018-03-28 12:10:25,000 INFO L700 Elim1Store]: detected not equals via solver [2018-03-28 12:10:25,002 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 [2018-03-28 12:10:25,002 INFO L267 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2018-03-28 12:10:25,010 INFO L700 Elim1Store]: detected not equals via solver [2018-03-28 12:10:25,011 INFO L700 Elim1Store]: detected not equals via solver [2018-03-28 12:10:25,011 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 [2018-03-28 12:10:25,012 INFO L267 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 1 xjuncts. [2018-03-28 12:10:25,018 INFO L267 ElimStorePlain]: Start of recursive call 1: 1 dim-0 vars, 2 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-03-28 12:10:25,019 INFO L202 ElimStorePlain]: Needed 3 recursive calls to eliminate 3 variables, input treesize:25, output treesize:13 [2018-03-28 12:10:25,463 INFO L134 CoverageAnalysis]: Checked inductivity of 39 backedges. 0 proven. 39 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-03-28 12:10:25,463 INFO L314 TraceCheckSpWp]: Computing backward predicates... [2018-03-28 12:10:26,344 INFO L134 CoverageAnalysis]: Checked inductivity of 39 backedges. 0 proven. 39 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-03-28 12:10:26,364 INFO L320 seRefinementStrategy]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2018-03-28 12:10:26,365 INFO L335 seRefinementStrategy]: Number of different interpolants: perfect sequences [] imperfect sequences [28, 27] total 54 [2018-03-28 12:10:26,365 INFO L442 AbstractCegarLoop]: Interpolant automaton has 55 states [2018-03-28 12:10:26,365 INFO L132 InterpolantAutomaton]: Constructing interpolant automaton starting with 55 interpolants. [2018-03-28 12:10:26,365 INFO L133 InterpolantAutomaton]: CoverageRelationStatistics Valid=189, Invalid=2781, Unknown=0, NotChecked=0, Total=2970 [2018-03-28 12:10:26,366 INFO L87 Difference]: Start difference. First operand 199 states and 205 transitions. Second operand 55 states. [2018-03-28 12:10:32,513 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-03-28 12:10:32,513 INFO L93 Difference]: Finished difference Result 379 states and 393 transitions. [2018-03-28 12:10:32,513 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 94 states. [2018-03-28 12:10:32,513 INFO L78 Accepts]: Start accepts. Automaton has 55 states. Word has length 82 [2018-03-28 12:10:32,513 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-03-28 12:10:32,515 INFO L225 Difference]: With dead ends: 379 [2018-03-28 12:10:32,515 INFO L226 Difference]: Without dead ends: 378 [2018-03-28 12:10:32,517 INFO L567 BasicCegarLoop]: 0 DeclaredPredicates, 253 GetRequests, 110 SyntacticMatches, 0 SemanticMatches, 143 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 4860 ImplicationChecksByTransitivity, 6.3s TimeCoverageRelationStatistics Valid=2029, Invalid=18851, Unknown=0, NotChecked=0, Total=20880 [2018-03-28 12:10:32,517 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 378 states. [2018-03-28 12:10:32,553 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 378 to 250. [2018-03-28 12:10:32,554 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 250 states. [2018-03-28 12:10:32,555 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 250 states to 250 states and 263 transitions. [2018-03-28 12:10:32,555 INFO L78 Accepts]: Start accepts. Automaton has 250 states and 263 transitions. Word has length 82 [2018-03-28 12:10:32,556 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-03-28 12:10:32,556 INFO L459 AbstractCegarLoop]: Abstraction has 250 states and 263 transitions. [2018-03-28 12:10:32,556 INFO L460 AbstractCegarLoop]: Interpolant automaton has 55 states. [2018-03-28 12:10:32,556 INFO L276 IsEmpty]: Start isEmpty. Operand 250 states and 263 transitions. [2018-03-28 12:10:32,557 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 84 [2018-03-28 12:10:32,557 INFO L347 BasicCegarLoop]: Found error trace [2018-03-28 12:10:32,557 INFO L355 BasicCegarLoop]: trace histogram [4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-03-28 12:10:32,557 INFO L408 AbstractCegarLoop]: === Iteration 22 === [cstrncpyErr3RequiresViolation, cstrncpyErr5RequiresViolation, cstrncpyErr4RequiresViolation, cstrncpyErr2RequiresViolation, cstrncpyErr0RequiresViolation, cstrncpyErr1RequiresViolation, mainErr1RequiresViolation, mainErr2EnsuresViolationMEMORY_LEAK, mainErr0RequiresViolation]=== [2018-03-28 12:10:32,558 INFO L82 PathProgramCache]: Analyzing trace with hash -1541939169, now seen corresponding path program 2 times No working directory specified, using /storage/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 23 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 23 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2018-03-28 12:10:32,566 INFO L68 tionRefinementEngine]: Using refinement strategy FixedRefinementStrategy [2018-03-28 12:10:32,595 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-03-28 12:10:32,598 INFO L270 TraceCheckSpWp]: Computing forward predicates... [2018-03-28 12:10:32,607 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 [2018-03-28 12:10:32,607 INFO L267 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2018-03-28 12:10:32,676 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 [2018-03-28 12:10:32,676 INFO L267 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 1 xjuncts. [2018-03-28 12:10:32,713 INFO L267 ElimStorePlain]: Start of recursive call 1: 2 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-03-28 12:10:32,713 INFO L202 ElimStorePlain]: Needed 3 recursive calls to eliminate 2 variables, input treesize:16, output treesize:14 [2018-03-28 12:10:32,804 INFO L700 Elim1Store]: detected not equals via solver [2018-03-28 12:10:32,805 INFO L700 Elim1Store]: detected not equals via solver [2018-03-28 12:10:32,806 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 [2018-03-28 12:10:32,806 INFO L267 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2018-03-28 12:10:32,820 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 [2018-03-28 12:10:32,820 INFO L267 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 1 xjuncts. [2018-03-28 12:10:32,832 INFO L267 ElimStorePlain]: Start of recursive call 1: 1 dim-0 vars, 2 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-03-28 12:10:32,833 INFO L202 ElimStorePlain]: Needed 3 recursive calls to eliminate 3 variables, input treesize:25, output treesize:13 [2018-03-28 12:10:33,158 INFO L134 CoverageAnalysis]: Checked inductivity of 78 backedges. 0 proven. 78 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-03-28 12:10:33,158 INFO L314 TraceCheckSpWp]: Computing backward predicates... [2018-03-28 12:10:33,749 INFO L134 CoverageAnalysis]: Checked inductivity of 78 backedges. 0 proven. 78 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-03-28 12:10:33,770 INFO L320 seRefinementStrategy]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2018-03-28 12:10:33,770 INFO L335 seRefinementStrategy]: Number of different interpolants: perfect sequences [] imperfect sequences [24, 23] total 46 [2018-03-28 12:10:33,770 INFO L442 AbstractCegarLoop]: Interpolant automaton has 47 states [2018-03-28 12:10:33,770 INFO L132 InterpolantAutomaton]: Constructing interpolant automaton starting with 47 interpolants. [2018-03-28 12:10:33,771 INFO L133 InterpolantAutomaton]: CoverageRelationStatistics Valid=163, Invalid=1999, Unknown=0, NotChecked=0, Total=2162 [2018-03-28 12:10:33,771 INFO L87 Difference]: Start difference. First operand 250 states and 263 transitions. Second operand 47 states. [2018-03-28 12:10:36,805 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-03-28 12:10:36,806 INFO L93 Difference]: Finished difference Result 383 states and 396 transitions. [2018-03-28 12:10:36,806 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 56 states. [2018-03-28 12:10:36,806 INFO L78 Accepts]: Start accepts. Automaton has 47 states. Word has length 83 [2018-03-28 12:10:36,806 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-03-28 12:10:36,808 INFO L225 Difference]: With dead ends: 383 [2018-03-28 12:10:36,808 INFO L226 Difference]: Without dead ends: 382 [2018-03-28 12:10:36,809 INFO L567 BasicCegarLoop]: 0 DeclaredPredicates, 217 GetRequests, 120 SyntacticMatches, 0 SemanticMatches, 97 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1818 ImplicationChecksByTransitivity, 3.2s TimeCoverageRelationStatistics Valid=1182, Invalid=8520, Unknown=0, NotChecked=0, Total=9702 [2018-03-28 12:10:36,809 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 382 states. [2018-03-28 12:10:36,846 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 382 to 264. [2018-03-28 12:10:36,846 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 264 states. [2018-03-28 12:10:36,848 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 264 states to 264 states and 274 transitions. [2018-03-28 12:10:36,848 INFO L78 Accepts]: Start accepts. Automaton has 264 states and 274 transitions. Word has length 83 [2018-03-28 12:10:36,848 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-03-28 12:10:36,848 INFO L459 AbstractCegarLoop]: Abstraction has 264 states and 274 transitions. [2018-03-28 12:10:36,848 INFO L460 AbstractCegarLoop]: Interpolant automaton has 47 states. [2018-03-28 12:10:36,849 INFO L276 IsEmpty]: Start isEmpty. Operand 264 states and 274 transitions. [2018-03-28 12:10:36,849 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 86 [2018-03-28 12:10:36,849 INFO L347 BasicCegarLoop]: Found error trace [2018-03-28 12:10:36,850 INFO L355 BasicCegarLoop]: trace histogram [3, 3, 3, 3, 3, 3, 3, 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-03-28 12:10:36,850 INFO L408 AbstractCegarLoop]: === Iteration 23 === [cstrncpyErr3RequiresViolation, cstrncpyErr5RequiresViolation, cstrncpyErr4RequiresViolation, cstrncpyErr2RequiresViolation, cstrncpyErr0RequiresViolation, cstrncpyErr1RequiresViolation, mainErr1RequiresViolation, mainErr2EnsuresViolationMEMORY_LEAK, mainErr0RequiresViolation]=== [2018-03-28 12:10:36,850 INFO L82 PathProgramCache]: Analyzing trace with hash 153237420, now seen corresponding path program 1 times No working directory specified, using /storage/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 24 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 24 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2018-03-28 12:10:36,860 INFO L68 tionRefinementEngine]: Using refinement strategy FixedRefinementStrategy [2018-03-28 12:10:36,888 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-03-28 12:10:36,892 INFO L270 TraceCheckSpWp]: Computing forward predicates... [2018-03-28 12:10:36,895 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 [2018-03-28 12:10:36,895 INFO L267 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2018-03-28 12:10:36,903 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 [2018-03-28 12:10:36,903 INFO L267 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 1 xjuncts. [2018-03-28 12:10:36,907 INFO L267 ElimStorePlain]: Start of recursive call 1: 2 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-03-28 12:10:36,907 INFO L202 ElimStorePlain]: Needed 3 recursive calls to eliminate 2 variables, input treesize:16, output treesize:14 [2018-03-28 12:10:36,934 INFO L700 Elim1Store]: detected not equals via solver [2018-03-28 12:10:36,934 INFO L700 Elim1Store]: detected not equals via solver [2018-03-28 12:10:36,935 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 [2018-03-28 12:10:36,935 INFO L267 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2018-03-28 12:10:36,945 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 [2018-03-28 12:10:36,945 INFO L267 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 1 xjuncts. [2018-03-28 12:10:36,950 INFO L267 ElimStorePlain]: Start of recursive call 1: 1 dim-0 vars, 2 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-03-28 12:10:36,950 INFO L202 ElimStorePlain]: Needed 3 recursive calls to eliminate 3 variables, input treesize:25, output treesize:13 [2018-03-28 12:10:37,620 INFO L134 CoverageAnalysis]: Checked inductivity of 37 backedges. 0 proven. 37 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-03-28 12:10:37,620 INFO L314 TraceCheckSpWp]: Computing backward predicates... [2018-03-28 12:10:38,903 INFO L134 CoverageAnalysis]: Checked inductivity of 37 backedges. 0 proven. 37 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-03-28 12:10:38,924 INFO L320 seRefinementStrategy]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2018-03-28 12:10:38,924 INFO L335 seRefinementStrategy]: Number of different interpolants: perfect sequences [] imperfect sequences [34, 33] total 66 [2018-03-28 12:10:38,924 INFO L442 AbstractCegarLoop]: Interpolant automaton has 67 states [2018-03-28 12:10:38,924 INFO L132 InterpolantAutomaton]: Constructing interpolant automaton starting with 67 interpolants. [2018-03-28 12:10:38,925 INFO L133 InterpolantAutomaton]: CoverageRelationStatistics Valid=246, Invalid=4176, Unknown=0, NotChecked=0, Total=4422 [2018-03-28 12:10:38,925 INFO L87 Difference]: Start difference. First operand 264 states and 274 transitions. Second operand 67 states. [2018-03-28 12:10:48,277 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-03-28 12:10:48,277 INFO L93 Difference]: Finished difference Result 397 states and 409 transitions. [2018-03-28 12:10:48,277 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 123 states. [2018-03-28 12:10:48,277 INFO L78 Accepts]: Start accepts. Automaton has 67 states. Word has length 85 [2018-03-28 12:10:48,278 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-03-28 12:10:48,279 INFO L225 Difference]: With dead ends: 397 [2018-03-28 12:10:48,279 INFO L226 Difference]: Without dead ends: 396 [2018-03-28 12:10:48,280 INFO L567 BasicCegarLoop]: 0 DeclaredPredicates, 288 GetRequests, 104 SyntacticMatches, 0 SemanticMatches, 184 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 8659 ImplicationChecksByTransitivity, 9.9s TimeCoverageRelationStatistics Valid=2937, Invalid=31473, Unknown=0, NotChecked=0, Total=34410 [2018-03-28 12:10:48,280 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 396 states. [2018-03-28 12:10:48,317 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 396 to 260. [2018-03-28 12:10:48,317 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 260 states. [2018-03-28 12:10:48,318 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 260 states to 260 states and 270 transitions. [2018-03-28 12:10:48,318 INFO L78 Accepts]: Start accepts. Automaton has 260 states and 270 transitions. Word has length 85 [2018-03-28 12:10:48,318 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-03-28 12:10:48,318 INFO L459 AbstractCegarLoop]: Abstraction has 260 states and 270 transitions. [2018-03-28 12:10:48,318 INFO L460 AbstractCegarLoop]: Interpolant automaton has 67 states. [2018-03-28 12:10:48,318 INFO L276 IsEmpty]: Start isEmpty. Operand 260 states and 270 transitions. [2018-03-28 12:10:48,319 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 92 [2018-03-28 12:10:48,319 INFO L347 BasicCegarLoop]: Found error trace [2018-03-28 12:10:48,319 INFO L355 BasicCegarLoop]: trace histogram [3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-03-28 12:10:48,319 INFO L408 AbstractCegarLoop]: === Iteration 24 === [cstrncpyErr3RequiresViolation, cstrncpyErr5RequiresViolation, cstrncpyErr4RequiresViolation, cstrncpyErr2RequiresViolation, cstrncpyErr0RequiresViolation, cstrncpyErr1RequiresViolation, mainErr1RequiresViolation, mainErr2EnsuresViolationMEMORY_LEAK, mainErr0RequiresViolation]=== [2018-03-28 12:10:48,319 INFO L82 PathProgramCache]: Analyzing trace with hash -2054967898, now seen corresponding path program 2 times No working directory specified, using /storage/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 25 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 25 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2018-03-28 12:10:48,326 INFO L68 tionRefinementEngine]: Using refinement strategy FixedRefinementStrategy [2018-03-28 12:10:48,349 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-03-28 12:10:48,352 INFO L270 TraceCheckSpWp]: Computing forward predicates... [2018-03-28 12:10:48,355 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 [2018-03-28 12:10:48,355 INFO L267 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2018-03-28 12:10:48,359 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 [2018-03-28 12:10:48,359 INFO L267 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 1 xjuncts. [2018-03-28 12:10:48,362 INFO L267 ElimStorePlain]: Start of recursive call 1: 2 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-03-28 12:10:48,362 INFO L202 ElimStorePlain]: Needed 3 recursive calls to eliminate 2 variables, input treesize:16, output treesize:14 [2018-03-28 12:10:48,373 INFO L700 Elim1Store]: detected not equals via solver [2018-03-28 12:10:48,374 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 [2018-03-28 12:10:48,374 INFO L267 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2018-03-28 12:10:48,381 INFO L700 Elim1Store]: detected not equals via solver [2018-03-28 12:10:48,382 INFO L700 Elim1Store]: detected not equals via solver [2018-03-28 12:10:48,382 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 11 treesize of output 4 [2018-03-28 12:10:48,382 INFO L267 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 1 xjuncts. [2018-03-28 12:10:48,386 INFO L267 ElimStorePlain]: Start of recursive call 1: 1 dim-0 vars, 2 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-03-28 12:10:48,386 INFO L202 ElimStorePlain]: Needed 3 recursive calls to eliminate 3 variables, input treesize:25, output treesize:13 [2018-03-28 12:10:49,124 INFO L134 CoverageAnalysis]: Checked inductivity of 47 backedges. 0 proven. 47 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-03-28 12:10:49,124 INFO L314 TraceCheckSpWp]: Computing backward predicates... [2018-03-28 12:10:50,444 INFO L134 CoverageAnalysis]: Checked inductivity of 47 backedges. 0 proven. 47 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-03-28 12:10:50,464 INFO L320 seRefinementStrategy]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2018-03-28 12:10:50,464 INFO L335 seRefinementStrategy]: Number of different interpolants: perfect sequences [] imperfect sequences [38, 32] total 69 [2018-03-28 12:10:50,465 INFO L442 AbstractCegarLoop]: Interpolant automaton has 70 states [2018-03-28 12:10:50,465 INFO L132 InterpolantAutomaton]: Constructing interpolant automaton starting with 70 interpolants. [2018-03-28 12:10:50,465 INFO L133 InterpolantAutomaton]: CoverageRelationStatistics Valid=249, Invalid=4581, Unknown=0, NotChecked=0, Total=4830 [2018-03-28 12:10:50,465 INFO L87 Difference]: Start difference. First operand 260 states and 270 transitions. Second operand 70 states. [2018-03-28 12:11:04,072 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-03-28 12:11:04,072 INFO L93 Difference]: Finished difference Result 446 states and 458 transitions. [2018-03-28 12:11:04,072 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 146 states. [2018-03-28 12:11:04,072 INFO L78 Accepts]: Start accepts. Automaton has 70 states. Word has length 91 [2018-03-28 12:11:04,073 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-03-28 12:11:04,074 INFO L225 Difference]: With dead ends: 446 [2018-03-28 12:11:04,074 INFO L226 Difference]: Without dead ends: 445 [2018-03-28 12:11:04,076 INFO L567 BasicCegarLoop]: 0 DeclaredPredicates, 323 GetRequests, 113 SyntacticMatches, 0 SemanticMatches, 210 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 11508 ImplicationChecksByTransitivity, 13.9s TimeCoverageRelationStatistics Valid=3701, Invalid=41031, Unknown=0, NotChecked=0, Total=44732 [2018-03-28 12:11:04,076 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 445 states. [2018-03-28 12:11:04,098 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 445 to 243. [2018-03-28 12:11:04,098 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 243 states. [2018-03-28 12:11:04,099 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 243 states to 243 states and 252 transitions. [2018-03-28 12:11:04,099 INFO L78 Accepts]: Start accepts. Automaton has 243 states and 252 transitions. Word has length 91 [2018-03-28 12:11:04,099 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-03-28 12:11:04,099 INFO L459 AbstractCegarLoop]: Abstraction has 243 states and 252 transitions. [2018-03-28 12:11:04,099 INFO L460 AbstractCegarLoop]: Interpolant automaton has 70 states. [2018-03-28 12:11:04,099 INFO L276 IsEmpty]: Start isEmpty. Operand 243 states and 252 transitions. [2018-03-28 12:11:04,100 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 110 [2018-03-28 12:11:04,100 INFO L347 BasicCegarLoop]: Found error trace [2018-03-28 12:11:04,100 INFO L355 BasicCegarLoop]: trace histogram [4, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 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] [2018-03-28 12:11:04,100 INFO L408 AbstractCegarLoop]: === Iteration 25 === [cstrncpyErr3RequiresViolation, cstrncpyErr5RequiresViolation, cstrncpyErr4RequiresViolation, cstrncpyErr2RequiresViolation, cstrncpyErr0RequiresViolation, cstrncpyErr1RequiresViolation, mainErr1RequiresViolation, mainErr2EnsuresViolationMEMORY_LEAK, mainErr0RequiresViolation]=== [2018-03-28 12:11:04,100 INFO L82 PathProgramCache]: Analyzing trace with hash -651400218, now seen corresponding path program 3 times No working directory specified, using /storage/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 26 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 26 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2018-03-28 12:11:04,105 INFO L68 tionRefinementEngine]: Using refinement strategy FixedRefinementStrategy [2018-03-28 12:11:04,133 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-03-28 12:11:04,137 INFO L270 TraceCheckSpWp]: Computing forward predicates... [2018-03-28 12:11:04,140 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 [2018-03-28 12:11:04,140 INFO L267 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2018-03-28 12:11:04,145 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 [2018-03-28 12:11:04,145 INFO L267 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 1 xjuncts. [2018-03-28 12:11:04,149 INFO L267 ElimStorePlain]: Start of recursive call 1: 2 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-03-28 12:11:04,149 INFO L202 ElimStorePlain]: Needed 3 recursive calls to eliminate 2 variables, input treesize:16, output treesize:14 [2018-03-28 12:11:04,160 INFO L700 Elim1Store]: detected not equals via solver [2018-03-28 12:11:04,160 INFO L700 Elim1Store]: detected not equals via solver [2018-03-28 12:11:04,161 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 [2018-03-28 12:11:04,161 INFO L267 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2018-03-28 12:11:04,167 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 [2018-03-28 12:11:04,167 INFO L267 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 1 xjuncts. [2018-03-28 12:11:04,171 INFO L267 ElimStorePlain]: Start of recursive call 1: 1 dim-0 vars, 2 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-03-28 12:11:04,171 INFO L202 ElimStorePlain]: Needed 3 recursive calls to eliminate 3 variables, input treesize:25, output treesize:13 [2018-03-28 12:11:05,124 INFO L134 CoverageAnalysis]: Checked inductivity of 90 backedges. 0 proven. 90 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-03-28 12:11:05,125 INFO L314 TraceCheckSpWp]: Computing backward predicates... [2018-03-28 12:11:07,238 INFO L134 CoverageAnalysis]: Checked inductivity of 90 backedges. 0 proven. 90 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-03-28 12:11:07,259 INFO L320 seRefinementStrategy]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2018-03-28 12:11:07,259 INFO L335 seRefinementStrategy]: Number of different interpolants: perfect sequences [] imperfect sequences [43, 42] total 84 [2018-03-28 12:11:07,260 INFO L442 AbstractCegarLoop]: Interpolant automaton has 85 states [2018-03-28 12:11:07,260 INFO L132 InterpolantAutomaton]: Constructing interpolant automaton starting with 85 interpolants. [2018-03-28 12:11:07,260 INFO L133 InterpolantAutomaton]: CoverageRelationStatistics Valid=357, Invalid=6783, Unknown=0, NotChecked=0, Total=7140 [2018-03-28 12:11:07,260 INFO L87 Difference]: Start difference. First operand 243 states and 252 transitions. Second operand 85 states. [2018-03-28 12:11:12,707 WARN L151 SmtUtils]: Spent 101ms on a formula simplification. DAG size of input: 61 DAG size of output 59 [2018-03-28 12:11:13,406 WARN L151 SmtUtils]: Spent 108ms on a formula simplification. DAG size of input: 69 DAG size of output 60 [2018-03-28 12:11:13,677 WARN L151 SmtUtils]: Spent 103ms on a formula simplification. DAG size of input: 66 DAG size of output 60 [2018-03-28 12:11:32,733 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-03-28 12:11:32,733 INFO L93 Difference]: Finished difference Result 529 states and 544 transitions. [2018-03-28 12:11:32,733 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 229 states. [2018-03-28 12:11:32,733 INFO L78 Accepts]: Start accepts. Automaton has 85 states. Word has length 109 [2018-03-28 12:11:32,734 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-03-28 12:11:32,735 INFO L225 Difference]: With dead ends: 529 [2018-03-28 12:11:32,735 INFO L226 Difference]: Without dead ends: 528 [2018-03-28 12:11:32,738 INFO L567 BasicCegarLoop]: 0 DeclaredPredicates, 442 GetRequests, 134 SyntacticMatches, 0 SemanticMatches, 308 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 29250 ImplicationChecksByTransitivity, 25.6s TimeCoverageRelationStatistics Valid=6686, Invalid=89104, Unknown=0, NotChecked=0, Total=95790 [2018-03-28 12:11:32,738 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 528 states. [2018-03-28 12:11:32,773 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 528 to 269. [2018-03-28 12:11:32,773 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 269 states. [2018-03-28 12:11:32,773 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 269 states to 269 states and 279 transitions. [2018-03-28 12:11:32,774 INFO L78 Accepts]: Start accepts. Automaton has 269 states and 279 transitions. Word has length 109 [2018-03-28 12:11:32,774 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-03-28 12:11:32,774 INFO L459 AbstractCegarLoop]: Abstraction has 269 states and 279 transitions. [2018-03-28 12:11:32,774 INFO L460 AbstractCegarLoop]: Interpolant automaton has 85 states. [2018-03-28 12:11:32,774 INFO L276 IsEmpty]: Start isEmpty. Operand 269 states and 279 transitions. [2018-03-28 12:11:32,774 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 113 [2018-03-28 12:11:32,774 INFO L347 BasicCegarLoop]: Found error trace [2018-03-28 12:11:32,775 INFO L355 BasicCegarLoop]: trace histogram [6, 6, 6, 6, 6, 6, 6, 5, 5, 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-03-28 12:11:32,775 INFO L408 AbstractCegarLoop]: === Iteration 26 === [cstrncpyErr3RequiresViolation, cstrncpyErr5RequiresViolation, cstrncpyErr4RequiresViolation, cstrncpyErr2RequiresViolation, cstrncpyErr0RequiresViolation, cstrncpyErr1RequiresViolation, mainErr1RequiresViolation, mainErr2EnsuresViolationMEMORY_LEAK, mainErr0RequiresViolation]=== [2018-03-28 12:11:32,775 INFO L82 PathProgramCache]: Analyzing trace with hash -1290307198, now seen corresponding path program 4 times No working directory specified, using /storage/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 27 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 27 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2018-03-28 12:11:32,780 INFO L68 tionRefinementEngine]: Using refinement strategy FixedRefinementStrategy [2018-03-28 12:11:32,809 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-03-28 12:11:32,813 INFO L270 TraceCheckSpWp]: Computing forward predicates... [2018-03-28 12:11:32,816 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 [2018-03-28 12:11:32,816 INFO L267 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2018-03-28 12:11:32,820 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 [2018-03-28 12:11:32,820 INFO L267 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 1 xjuncts. [2018-03-28 12:11:32,823 INFO L267 ElimStorePlain]: Start of recursive call 1: 2 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-03-28 12:11:32,824 INFO L202 ElimStorePlain]: Needed 3 recursive calls to eliminate 2 variables, input treesize:16, output treesize:14 [2018-03-28 12:11:32,835 INFO L700 Elim1Store]: detected not equals via solver [2018-03-28 12:11:32,836 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 [2018-03-28 12:11:32,836 INFO L267 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2018-03-28 12:11:32,843 INFO L700 Elim1Store]: detected not equals via solver [2018-03-28 12:11:32,844 INFO L700 Elim1Store]: detected not equals via solver [2018-03-28 12:11:32,844 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 [2018-03-28 12:11:32,844 INFO L267 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 1 xjuncts. [2018-03-28 12:11:32,848 INFO L267 ElimStorePlain]: Start of recursive call 1: 1 dim-0 vars, 2 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-03-28 12:11:32,849 INFO L202 ElimStorePlain]: Needed 3 recursive calls to eliminate 3 variables, input treesize:25, output treesize:13 [2018-03-28 12:11:34,239 INFO L134 CoverageAnalysis]: Checked inductivity of 142 backedges. 0 proven. 142 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-03-28 12:11:34,239 INFO L314 TraceCheckSpWp]: Computing backward predicates... [2018-03-28 12:11:37,215 INFO L134 CoverageAnalysis]: Checked inductivity of 142 backedges. 0 proven. 142 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-03-28 12:11:37,237 INFO L320 seRefinementStrategy]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2018-03-28 12:11:37,237 INFO L335 seRefinementStrategy]: Number of different interpolants: perfect sequences [] imperfect sequences [49, 48] total 96 [2018-03-28 12:11:37,237 INFO L442 AbstractCegarLoop]: Interpolant automaton has 97 states [2018-03-28 12:11:37,238 INFO L132 InterpolantAutomaton]: Constructing interpolant automaton starting with 97 interpolants. [2018-03-28 12:11:37,238 INFO L133 InterpolantAutomaton]: CoverageRelationStatistics Valid=513, Invalid=8799, Unknown=0, NotChecked=0, Total=9312 [2018-03-28 12:11:37,238 INFO L87 Difference]: Start difference. First operand 269 states and 279 transitions. Second operand 97 states. [2018-03-28 12:11:40,070 WARN L151 SmtUtils]: Spent 108ms on a formula simplification. DAG size of input: 58 DAG size of output 56 [2018-03-28 12:11:40,575 WARN L151 SmtUtils]: Spent 118ms on a formula simplification. DAG size of input: 61 DAG size of output 56 [2018-03-28 12:11:40,866 WARN L151 SmtUtils]: Spent 106ms on a formula simplification. DAG size of input: 58 DAG size of output 56 [2018-03-28 12:11:42,827 WARN L151 SmtUtils]: Spent 112ms on a formula simplification. DAG size of input: 69 DAG size of output 67 [2018-03-28 12:11:43,112 WARN L151 SmtUtils]: Spent 113ms on a formula simplification. DAG size of input: 68 DAG size of output 66 [2018-03-28 12:11:43,466 WARN L151 SmtUtils]: Spent 107ms on a formula simplification. DAG size of input: 68 DAG size of output 66 [2018-03-28 12:11:44,015 WARN L151 SmtUtils]: Spent 120ms on a formula simplification. DAG size of input: 69 DAG size of output 67 [2018-03-28 12:11:44,302 WARN L151 SmtUtils]: Spent 105ms on a formula simplification. DAG size of input: 68 DAG size of output 66 [2018-03-28 12:11:44,620 WARN L151 SmtUtils]: Spent 117ms on a formula simplification. DAG size of input: 71 DAG size of output 66 [2018-03-28 12:11:47,109 WARN L151 SmtUtils]: Spent 102ms on a formula simplification. DAG size of input: 70 DAG size of output 65 [2018-03-28 12:11:52,600 WARN L151 SmtUtils]: Spent 124ms on a formula simplification. DAG size of input: 89 DAG size of output 78 [2018-03-28 12:11:52,982 WARN L151 SmtUtils]: Spent 118ms on a formula simplification. DAG size of input: 90 DAG size of output 79 [2018-03-28 12:11:53,901 WARN L151 SmtUtils]: Spent 157ms on a formula simplification. DAG size of input: 102 DAG size of output 80 [2018-03-28 12:11:54,268 WARN L151 SmtUtils]: Spent 154ms on a formula simplification. DAG size of input: 98 DAG size of output 79 [2018-03-28 12:11:56,565 WARN L151 SmtUtils]: Spent 130ms on a formula simplification. DAG size of input: 70 DAG size of output 68 [2018-03-28 12:11:57,427 WARN L151 SmtUtils]: Spent 122ms on a formula simplification. DAG size of input: 86 DAG size of output 70 [2018-03-28 12:11:57,739 WARN L151 SmtUtils]: Spent 115ms on a formula simplification. DAG size of input: 83 DAG size of output 69 [2018-03-28 12:12:03,520 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-03-28 12:12:03,521 INFO L93 Difference]: Finished difference Result 540 states and 556 transitions. [2018-03-28 12:12:03,521 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 213 states. [2018-03-28 12:12:03,521 INFO L78 Accepts]: Start accepts. Automaton has 97 states. Word has length 112 [2018-03-28 12:12:03,521 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-03-28 12:12:03,523 INFO L225 Difference]: With dead ends: 540 [2018-03-28 12:12:03,523 INFO L226 Difference]: Without dead ends: 539 [2018-03-28 12:12:03,526 INFO L567 BasicCegarLoop]: 0 DeclaredPredicates, 432 GetRequests, 128 SyntacticMatches, 0 SemanticMatches, 304 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 26510 ImplicationChecksByTransitivity, 27.7s TimeCoverageRelationStatistics Valid=7398, Invalid=85932, Unknown=0, NotChecked=0, Total=93330 [2018-03-28 12:12:03,526 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 539 states. [2018-03-28 12:12:03,579 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 539 to 323. [2018-03-28 12:12:03,579 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 323 states. [2018-03-28 12:12:03,580 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 323 states to 323 states and 333 transitions. [2018-03-28 12:12:03,580 INFO L78 Accepts]: Start accepts. Automaton has 323 states and 333 transitions. Word has length 112 [2018-03-28 12:12:03,580 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-03-28 12:12:03,580 INFO L459 AbstractCegarLoop]: Abstraction has 323 states and 333 transitions. [2018-03-28 12:12:03,580 INFO L460 AbstractCegarLoop]: Interpolant automaton has 97 states. [2018-03-28 12:12:03,580 INFO L276 IsEmpty]: Start isEmpty. Operand 323 states and 333 transitions. [2018-03-28 12:12:03,581 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 116 [2018-03-28 12:12:03,581 INFO L347 BasicCegarLoop]: Found error trace [2018-03-28 12:12:03,581 INFO L355 BasicCegarLoop]: trace histogram [8, 8, 8, 8, 8, 8, 8, 7, 7, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-03-28 12:12:03,581 INFO L408 AbstractCegarLoop]: === Iteration 27 === [cstrncpyErr3RequiresViolation, cstrncpyErr5RequiresViolation, cstrncpyErr4RequiresViolation, cstrncpyErr2RequiresViolation, cstrncpyErr0RequiresViolation, cstrncpyErr1RequiresViolation, mainErr1RequiresViolation, mainErr2EnsuresViolationMEMORY_LEAK, mainErr0RequiresViolation]=== [2018-03-28 12:12:03,581 INFO L82 PathProgramCache]: Analyzing trace with hash 990612454, now seen corresponding path program 3 times No working directory specified, using /storage/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 28 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 28 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2018-03-28 12:12:03,587 INFO L68 tionRefinementEngine]: Using refinement strategy FixedRefinementStrategy [2018-03-28 12:12:03,621 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-03-28 12:12:03,627 INFO L270 TraceCheckSpWp]: Computing forward predicates... [2018-03-28 12:12:03,630 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 [2018-03-28 12:12:03,630 INFO L267 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2018-03-28 12:12:03,636 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 [2018-03-28 12:12:03,636 INFO L267 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 1 xjuncts. [2018-03-28 12:12:03,652 INFO L267 ElimStorePlain]: Start of recursive call 1: 2 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-03-28 12:12:03,652 INFO L202 ElimStorePlain]: Needed 3 recursive calls to eliminate 2 variables, input treesize:16, output treesize:14 [2018-03-28 12:12:03,665 INFO L700 Elim1Store]: detected not equals via solver [2018-03-28 12:12:03,666 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 [2018-03-28 12:12:03,666 INFO L267 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2018-03-28 12:12:03,675 INFO L700 Elim1Store]: detected not equals via solver [2018-03-28 12:12:03,676 INFO L700 Elim1Store]: detected not equals via solver [2018-03-28 12:12:03,676 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 [2018-03-28 12:12:03,676 INFO L267 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 1 xjuncts. [2018-03-28 12:12:03,681 INFO L267 ElimStorePlain]: Start of recursive call 1: 1 dim-0 vars, 2 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-03-28 12:12:03,681 INFO L202 ElimStorePlain]: Needed 3 recursive calls to eliminate 3 variables, input treesize:25, output treesize:13 [2018-03-28 12:12:05,606 INFO L134 CoverageAnalysis]: Checked inductivity of 245 backedges. 0 proven. 245 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-03-28 12:12:05,606 INFO L314 TraceCheckSpWp]: Computing backward predicates... Received shutdown request... [2018-03-28 12:12:05,980 INFO L175 TraceCheckSpWp]: Timeout while computing interpolants [2018-03-28 12:12:05,980 WARN L519 AbstractCegarLoop]: Verification canceled [2018-03-28 12:12:05,984 WARN L197 ceAbstractionStarter]: Timeout [2018-03-28 12:12:05,984 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 28.03 12:12:05 BoogieIcfgContainer [2018-03-28 12:12:05,984 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2018-03-28 12:12:05,984 INFO L168 Benchmark]: Toolchain (without parser) took 138144.37 ms. Allocated memory was 306.7 MB in the beginning and 592.4 MB in the end (delta: 285.7 MB). Free memory was 243.8 MB in the beginning and 327.6 MB in the end (delta: -83.8 MB). Peak memory consumption was 201.9 MB. Max. memory is 5.3 GB. [2018-03-28 12:12:05,985 INFO L168 Benchmark]: CDTParser took 0.18 ms. Allocated memory is still 306.7 MB. Free memory is still 269.2 MB. There was no memory consumed. Max. memory is 5.3 GB. [2018-03-28 12:12:05,986 INFO L168 Benchmark]: CACSL2BoogieTranslator took 321.84 ms. Allocated memory is still 306.7 MB. Free memory was 243.8 MB in the beginning and 219.7 MB in the end (delta: 24.1 MB). Peak memory consumption was 24.1 MB. Max. memory is 5.3 GB. [2018-03-28 12:12:05,986 INFO L168 Benchmark]: Boogie Preprocessor took 51.78 ms. Allocated memory is still 306.7 MB. Free memory was 219.7 MB in the beginning and 216.6 MB in the end (delta: 3.0 MB). Peak memory consumption was 3.0 MB. Max. memory is 5.3 GB. [2018-03-28 12:12:05,986 INFO L168 Benchmark]: RCFGBuilder took 563.84 ms. Allocated memory was 306.7 MB in the beginning and 468.2 MB in the end (delta: 161.5 MB). Free memory was 216.6 MB in the beginning and 402.2 MB in the end (delta: -185.5 MB). Peak memory consumption was 21.1 MB. Max. memory is 5.3 GB. [2018-03-28 12:12:05,986 INFO L168 Benchmark]: TraceAbstraction took 137201.30 ms. Allocated memory was 468.2 MB in the beginning and 592.4 MB in the end (delta: 124.3 MB). Free memory was 402.2 MB in the beginning and 327.6 MB in the end (delta: 74.6 MB). Peak memory consumption was 198.8 MB. Max. memory is 5.3 GB. [2018-03-28 12:12:05,988 INFO L344 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.18 ms. Allocated memory is still 306.7 MB. Free memory is still 269.2 MB. There was no memory consumed. Max. memory is 5.3 GB. * CACSL2BoogieTranslator took 321.84 ms. Allocated memory is still 306.7 MB. Free memory was 243.8 MB in the beginning and 219.7 MB in the end (delta: 24.1 MB). Peak memory consumption was 24.1 MB. Max. memory is 5.3 GB. * Boogie Preprocessor took 51.78 ms. Allocated memory is still 306.7 MB. Free memory was 219.7 MB in the beginning and 216.6 MB in the end (delta: 3.0 MB). Peak memory consumption was 3.0 MB. Max. memory is 5.3 GB. * RCFGBuilder took 563.84 ms. Allocated memory was 306.7 MB in the beginning and 468.2 MB in the end (delta: 161.5 MB). Free memory was 216.6 MB in the beginning and 402.2 MB in the end (delta: -185.5 MB). Peak memory consumption was 21.1 MB. Max. memory is 5.3 GB. * TraceAbstraction took 137201.30 ms. Allocated memory was 468.2 MB in the beginning and 592.4 MB in the end (delta: 124.3 MB). Free memory was 402.2 MB in the beginning and 327.6 MB in the end (delta: 74.6 MB). Peak memory consumption was 198.8 MB. Max. memory is 5.3 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - TimeoutResultAtElement [Line: 548]: Timeout (TraceAbstraction) Unable to prove that pointer dereference always succeeds (line 548). Cancelled while BasicCegarLoop was analyzing trace of length 116 with TraceHistMax 8, while TraceCheckSpWp was constructing backward predicates, while PredicateComparison was comparing new predicate (quantifier-free) to 63 known predicates. - TimeoutResultAtElement [Line: 552]: Timeout (TraceAbstraction) Unable to prove that pointer dereference always succeeds (line 552). Cancelled while BasicCegarLoop was analyzing trace of length 116 with TraceHistMax 8, while TraceCheckSpWp was constructing backward predicates, while PredicateComparison was comparing new predicate (quantifier-free) to 63 known predicates. - TimeoutResultAtElement [Line: 552]: Timeout (TraceAbstraction) Unable to prove that pointer dereference always succeeds (line 552). Cancelled while BasicCegarLoop was analyzing trace of length 116 with TraceHistMax 8, while TraceCheckSpWp was constructing backward predicates, while PredicateComparison was comparing new predicate (quantifier-free) to 63 known predicates. - TimeoutResultAtElement [Line: 548]: Timeout (TraceAbstraction) Unable to prove that pointer dereference always succeeds (line 548). Cancelled while BasicCegarLoop was analyzing trace of length 116 with TraceHistMax 8, while TraceCheckSpWp was constructing backward predicates, while PredicateComparison was comparing new predicate (quantifier-free) to 63 known predicates. - TimeoutResultAtElement [Line: 548]: Timeout (TraceAbstraction) Unable to prove that pointer dereference always succeeds (line 548). Cancelled while BasicCegarLoop was analyzing trace of length 116 with TraceHistMax 8, while TraceCheckSpWp was constructing backward predicates, while PredicateComparison was comparing new predicate (quantifier-free) to 63 known predicates. - TimeoutResultAtElement [Line: 548]: Timeout (TraceAbstraction) Unable to prove that pointer dereference always succeeds (line 548). Cancelled while BasicCegarLoop was analyzing trace of length 116 with TraceHistMax 8, while TraceCheckSpWp was constructing backward predicates, while PredicateComparison was comparing new predicate (quantifier-free) to 63 known predicates. - TimeoutResultAtElement [Line: 569]: Timeout (TraceAbstraction) Unable to prove that pointer dereference always succeeds (line 569). Cancelled while BasicCegarLoop was analyzing trace of length 116 with TraceHistMax 8, while TraceCheckSpWp was constructing backward predicates, while PredicateComparison was comparing new predicate (quantifier-free) to 63 known predicates. - TimeoutResultAtElement [Line: 558]: Timeout (TraceAbstraction) Unable to prove that all allocated memory was freed (line 558). Cancelled while BasicCegarLoop was analyzing trace of length 116 with TraceHistMax 8, while TraceCheckSpWp was constructing backward predicates, while PredicateComparison was comparing new predicate (quantifier-free) to 63 known predicates. - TimeoutResultAtElement [Line: 569]: Timeout (TraceAbstraction) Unable to prove that pointer dereference always succeeds (line 569). Cancelled while BasicCegarLoop was analyzing trace of length 116 with TraceHistMax 8, while TraceCheckSpWp was constructing backward predicates, while PredicateComparison was comparing new predicate (quantifier-free) to 63 known predicates. - StatisticsResult: Ultimate Automizer benchmark data CFG has 6 procedures, 91 locations, 9 error locations. TIMEOUT Result, 137.1s OverallTime, 27 OverallIterations, 8 TraceHistogramMax, 107.5s AutomataDifference, 0.0s DeadEndRemovalTime, 0.0s HoareAnnotationTime, HoareTripleCheckerStatistics: 1946 SDtfs, 12432 SDslu, 30741 SDs, 0 SdLazy, 29117 SolverSat, 2291 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 13.7s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 4347 GetRequests, 2305 SyntacticMatches, 17 SemanticMatches, 2025 ConstructedPredicates, 20 IntricatePredicates, 0 DeprecatedPredicates, 96450 ImplicationChecksByTransitivity, 112.2s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=323occurred in iteration=26, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s AbstIntTime, 0 AbstIntIterations, 0 AbstIntStrong, NaN AbsIntWeakeningRatio, NaN AbsIntAvgWeakeningVarsNumRemoved, NaN AbsIntAvgWeakenedConjuncts, 0.0s DumpTime, AutomataMinimizationStatistics: 0.4s AutomataMinimizationTime, 26 MinimizatonAttempts, 1800 StatesRemovedByMinimization, 21 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TraceCheckStatistics: 0.1s SsaConstructionTime, 0.4s SatisfiabilityAnalysisTime, 25.1s InterpolantComputationTime, 1572 NumberOfCodeBlocks, 1572 NumberOfCodeBlocksAsserted, 26 NumberOfCheckSat, 3092 ConstructedInterpolants, 303 QuantifiedInterpolants, 3093513 SizeOfPredicates, 582 NumberOfNonLiveVariables, 4604 ConjunctsInSsa, 1106 ConjunctsInUnsatCore, 52 InterpolantComputations, 27 PerfectInterpolantSequences, 17/1258 InterpolantCoveringCapability, InvariantSynthesisStatistics: No data available, InterpolantConsolidationStatistics: No data available, ReuseStatistics: No data available RESULT: Ultimate could not prove your program: Timeout Written .csv to /storage/ultimate/releaseScripts/default/UAutomizer-linux/../../../releaseScripts/default/UAutomizer-linux/csv/cstrncpy-alloca_true-valid-memsafety_true-termination.i_svcomp-DerefFreeMemtrack-32bit-Automizer_Fixed_noBitfields+AI_EQ_SS.epf_AutomizerC.xml/Csv-Benchmark-0-2018-03-28_12-12-05-994.csv Written .csv to /storage/ultimate/releaseScripts/default/UAutomizer-linux/../../../releaseScripts/default/UAutomizer-linux/csv/cstrncpy-alloca_true-valid-memsafety_true-termination.i_svcomp-DerefFreeMemtrack-32bit-Automizer_Fixed_noBitfields+AI_EQ_SS.epf_AutomizerC.xml/Csv-TraceAbstractionBenchmarks-0-2018-03-28_12-12-05-994.csv Completed graceful shutdown