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 --cacsl2boogietranslator.bitprecise.bitfields false -tc ../../../trunk/examples/toolchains/AutomizerC.xml -s ../../../trunk/examples/settings/cade18-smtinterpol/svcomp-DerefFreeMemtrack-32bit-Automizer_Camel.epf -i ../../../trunk/examples/svcomp/array-memsafety/cstrspn-alloca_true-valid-memsafety_true-termination.i -------------------------------------------------------------------------------- This is Ultimate 0.1.23-666feb3-m [2018-04-11 20:31:32,960 INFO L170 SettingsManager]: Resetting all preferences to default values... [2018-04-11 20:31:32,962 INFO L174 SettingsManager]: Resetting UltimateCore preferences to default values [2018-04-11 20:31:32,975 INFO L177 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2018-04-11 20:31:32,975 INFO L174 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2018-04-11 20:31:32,976 INFO L174 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2018-04-11 20:31:32,977 INFO L174 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2018-04-11 20:31:32,978 INFO L174 SettingsManager]: Resetting LassoRanker preferences to default values [2018-04-11 20:31:32,980 INFO L174 SettingsManager]: Resetting Reaching Definitions preferences to default values [2018-04-11 20:31:32,980 INFO L174 SettingsManager]: Resetting SyntaxChecker preferences to default values [2018-04-11 20:31:32,981 INFO L177 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2018-04-11 20:31:32,981 INFO L174 SettingsManager]: Resetting LTL2Aut preferences to default values [2018-04-11 20:31:32,982 INFO L174 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2018-04-11 20:31:32,983 INFO L174 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2018-04-11 20:31:32,984 INFO L174 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2018-04-11 20:31:32,985 INFO L174 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2018-04-11 20:31:32,987 INFO L174 SettingsManager]: Resetting CodeCheck preferences to default values [2018-04-11 20:31:32,988 INFO L174 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2018-04-11 20:31:32,989 INFO L174 SettingsManager]: Resetting RCFGBuilder preferences to default values [2018-04-11 20:31:32,990 INFO L174 SettingsManager]: Resetting TraceAbstraction preferences to default values [2018-04-11 20:31:32,991 INFO L177 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... 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[2018-04-11 20:31:32,996 INFO L98 SettingsManager]: Beginning loading settings from /home/ultimate/work/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/settings/cade18-smtinterpol/svcomp-DerefFreeMemtrack-32bit-Automizer_Camel.epf [2018-04-11 20:31:33,018 INFO L110 SettingsManager]: Loading preferences was successful [2018-04-11 20:31:33,018 INFO L112 SettingsManager]: Preferences different from defaults after loading the file: [2018-04-11 20:31:33,019 INFO L131 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2018-04-11 20:31:33,019 INFO L133 SettingsManager]: * Create parallel compositions if possible=false [2018-04-11 20:31:33,020 INFO L133 SettingsManager]: * Use SBE=true [2018-04-11 20:31:33,020 INFO L131 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2018-04-11 20:31:33,020 INFO L133 SettingsManager]: * sizeof long=4 [2018-04-11 20:31:33,020 INFO L133 SettingsManager]: * Check unreachability of error function in SV-COMP mode=false [2018-04-11 20:31:33,020 INFO L133 SettingsManager]: * Overapproximate operations on floating types=true [2018-04-11 20:31:33,020 INFO L133 SettingsManager]: * sizeof POINTER=4 [2018-04-11 20:31:33,020 INFO L133 SettingsManager]: * Check division by zero=IGNORE [2018-04-11 20:31:33,021 INFO L133 SettingsManager]: * Check for the main procedure if all allocated memory was freed=true [2018-04-11 20:31:33,021 INFO L133 SettingsManager]: * Bitprecise bitfields=true [2018-04-11 20:31:33,021 INFO L133 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2018-04-11 20:31:33,021 INFO L133 SettingsManager]: * sizeof long double=12 [2018-04-11 20:31:33,021 INFO L131 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2018-04-11 20:31:33,021 INFO L133 SettingsManager]: * Size of a code block=SequenceOfStatements [2018-04-11 20:31:33,021 INFO L133 SettingsManager]: * To the following directory=./dump/ [2018-04-11 20:31:33,022 INFO L133 SettingsManager]: * SMT solver=External_DefaultMode [2018-04-11 20:31:33,022 INFO L133 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2018-04-11 20:31:33,022 INFO L131 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2018-04-11 20:31:33,022 INFO L133 SettingsManager]: * Interpolant automaton=TWOTRACK [2018-04-11 20:31:33,022 INFO L133 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2018-04-11 20:31:33,022 INFO L133 SettingsManager]: * Trace refinement strategy=CAMEL Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Bitprecise bitfields -> false [2018-04-11 20:31:33,054 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2018-04-11 20:31:33,068 INFO L266 ainManager$Toolchain]: [Toolchain 1]: Parser(s) successfully (re)initialized [2018-04-11 20:31:33,071 INFO L222 ainManager$Toolchain]: [Toolchain 1]: Toolchain data selected. [2018-04-11 20:31:33,073 INFO L271 PluginConnector]: Initializing CDTParser... [2018-04-11 20:31:33,073 INFO L276 PluginConnector]: CDTParser initialized [2018-04-11 20:31:33,074 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /home/ultimate/work/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/array-memsafety/cstrspn-alloca_true-valid-memsafety_true-termination.i [2018-04-11 20:31:33,435 INFO L225 CDTParser]: Created temporary CDT project at /home/ultimate/work/ultimate/releaseScripts/default/UAutomizer-linux/data/FLAGed9eef0f6 [2018-04-11 20:31:33,569 INFO L287 CDTParser]: IsIndexed: true [2018-04-11 20:31:33,569 INFO L288 CDTParser]: Found 1 translation units. [2018-04-11 20:31:33,570 INFO L168 CDTParser]: Scanning cstrspn-alloca_true-valid-memsafety_true-termination.i [2018-04-11 20:31:33,575 INFO L210 ultiparseSymbolTable]: Include resolver: [2018-04-11 20:31:33,575 INFO L215 ultiparseSymbolTable]: [2018-04-11 20:31:33,575 INFO L218 ultiparseSymbolTable]: Function table: [2018-04-11 20:31:33,575 INFO L221 ultiparseSymbolTable]: Function definition of __U_MULTI_fcstrspn_alloca_true_valid_memsafety_true_termination_i____bswap_32 ('__bswap_32') in cstrspn-alloca_true-valid-memsafety_true-termination.i [2018-04-11 20:31:33,575 INFO L221 ultiparseSymbolTable]: Function definition of __U_MULTI_fcstrspn_alloca_true_valid_memsafety_true_termination_i____bswap_64 ('__bswap_64') in cstrspn-alloca_true-valid-memsafety_true-termination.i [2018-04-11 20:31:33,575 INFO L221 ultiparseSymbolTable]: Function definition of null ('main') in cstrspn-alloca_true-valid-memsafety_true-termination.i [2018-04-11 20:31:33,575 INFO L221 ultiparseSymbolTable]: Function definition of __U_MULTI_fcstrspn_alloca_true_valid_memsafety_true_termination_i__ ('') in cstrspn-alloca_true-valid-memsafety_true-termination.i [2018-04-11 20:31:33,575 INFO L227 ultiparseSymbolTable]: Global variable table: [2018-04-11 20:31:33,575 INFO L230 ultiparseSymbolTable]: Global variable declaration of __U_MULTI_fcstrspn_alloca_true_valid_memsafety_true_termination_i__pthread_t in cstrspn-alloca_true-valid-memsafety_true-termination.i [2018-04-11 20:31:33,576 INFO L230 ultiparseSymbolTable]: Global variable declaration of __U_MULTI_fcstrspn_alloca_true_valid_memsafety_true_termination_i__wchar_t in cstrspn-alloca_true-valid-memsafety_true-termination.i [2018-04-11 20:31:33,576 INFO L230 ultiparseSymbolTable]: Global variable declaration of __U_MULTI_fcstrspn_alloca_true_valid_memsafety_true_termination_i__nlink_t in cstrspn-alloca_true-valid-memsafety_true-termination.i [2018-04-11 20:31:33,576 INFO L230 ultiparseSymbolTable]: Global variable declaration of __U_MULTI_fcstrspn_alloca_true_valid_memsafety_true_termination_i____fd_mask in cstrspn-alloca_true-valid-memsafety_true-termination.i [2018-04-11 20:31:33,576 INFO L230 ultiparseSymbolTable]: Global variable declaration of __U_MULTI_fcstrspn_alloca_true_valid_memsafety_true_termination_i____useconds_t in cstrspn-alloca_true-valid-memsafety_true-termination.i [2018-04-11 20:31:33,576 INFO L230 ultiparseSymbolTable]: Global variable declaration of __U_MULTI_fcstrspn_alloca_true_valid_memsafety_true_termination_i__id_t in cstrspn-alloca_true-valid-memsafety_true-termination.i [2018-04-11 20:31:33,576 INFO L230 ultiparseSymbolTable]: Global variable declaration of __U_MULTI_fcstrspn_alloca_true_valid_memsafety_true_termination_i__pthread_attr_t in cstrspn-alloca_true-valid-memsafety_true-termination.i [2018-04-11 20:31:33,576 INFO L230 ultiparseSymbolTable]: Global variable declaration of __U_MULTI_fcstrspn_alloca_true_valid_memsafety_true_termination_i____sig_atomic_t in cstrspn-alloca_true-valid-memsafety_true-termination.i [2018-04-11 20:31:33,576 INFO L230 ultiparseSymbolTable]: Global variable declaration of __U_MULTI_fcstrspn_alloca_true_valid_memsafety_true_termination_i____u_int in cstrspn-alloca_true-valid-memsafety_true-termination.i [2018-04-11 20:31:33,576 INFO L230 ultiparseSymbolTable]: Global variable declaration of __U_MULTI_fcstrspn_alloca_true_valid_memsafety_true_termination_i__dev_t in cstrspn-alloca_true-valid-memsafety_true-termination.i [2018-04-11 20:31:33,576 INFO L230 ultiparseSymbolTable]: Global variable declaration of __U_MULTI_fcstrspn_alloca_true_valid_memsafety_true_termination_i____clockid_t in cstrspn-alloca_true-valid-memsafety_true-termination.i [2018-04-11 20:31:33,576 INFO L230 ultiparseSymbolTable]: Global variable declaration of __U_MULTI_fcstrspn_alloca_true_valid_memsafety_true_termination_i__pthread_condattr_t in cstrspn-alloca_true-valid-memsafety_true-termination.i [2018-04-11 20:31:33,576 INFO L230 ultiparseSymbolTable]: Global variable declaration of __U_MULTI_fcstrspn_alloca_true_valid_memsafety_true_termination_i____clock_t in cstrspn-alloca_true-valid-memsafety_true-termination.i [2018-04-11 20:31:33,576 INFO L230 ultiparseSymbolTable]: Global variable declaration of __U_MULTI_fcstrspn_alloca_true_valid_memsafety_true_termination_i__clockid_t in cstrspn-alloca_true-valid-memsafety_true-termination.i [2018-04-11 20:31:33,576 INFO L230 ultiparseSymbolTable]: Global variable declaration of __U_MULTI_fcstrspn_alloca_true_valid_memsafety_true_termination_i__u_int8_t in cstrspn-alloca_true-valid-memsafety_true-termination.i [2018-04-11 20:31:33,576 INFO L230 ultiparseSymbolTable]: Global variable declaration of __U_MULTI_fcstrspn_alloca_true_valid_memsafety_true_termination_i__pthread_once_t in cstrspn-alloca_true-valid-memsafety_true-termination.i [2018-04-11 20:31:33,576 INFO L230 ultiparseSymbolTable]: Global variable declaration of __U_MULTI_fcstrspn_alloca_true_valid_memsafety_true_termination_i__u_int16_t in cstrspn-alloca_true-valid-memsafety_true-termination.i [2018-04-11 20:31:33,577 INFO L230 ultiparseSymbolTable]: Global variable declaration of __U_MULTI_fcstrspn_alloca_true_valid_memsafety_true_termination_i____fsblkcnt64_t in cstrspn-alloca_true-valid-memsafety_true-termination.i [2018-04-11 20:31:33,577 INFO L230 ultiparseSymbolTable]: Global variable declaration of __U_MULTI_fcstrspn_alloca_true_valid_memsafety_true_termination_i__quad_t in cstrspn-alloca_true-valid-memsafety_true-termination.i [2018-04-11 20:31:33,577 INFO L230 ultiparseSymbolTable]: Global variable declaration of __U_MULTI_fcstrspn_alloca_true_valid_memsafety_true_termination_i____daddr_t in cstrspn-alloca_true-valid-memsafety_true-termination.i [2018-04-11 20:31:33,577 INFO L230 ultiparseSymbolTable]: Global variable declaration of __U_MULTI_fcstrspn_alloca_true_valid_memsafety_true_termination_i__int64_t in cstrspn-alloca_true-valid-memsafety_true-termination.i [2018-04-11 20:31:33,577 INFO L230 ultiparseSymbolTable]: Global variable declaration of __U_MULTI_fcstrspn_alloca_true_valid_memsafety_true_termination_i__register_t in cstrspn-alloca_true-valid-memsafety_true-termination.i [2018-04-11 20:31:33,577 INFO L230 ultiparseSymbolTable]: Global variable declaration of __U_MULTI_fcstrspn_alloca_true_valid_memsafety_true_termination_i____u_quad_t in cstrspn-alloca_true-valid-memsafety_true-termination.i [2018-04-11 20:31:33,577 INFO L230 ultiparseSymbolTable]: Global variable declaration of __U_MULTI_fcstrspn_alloca_true_valid_memsafety_true_termination_i____pid_t in cstrspn-alloca_true-valid-memsafety_true-termination.i [2018-04-11 20:31:33,577 INFO L230 ultiparseSymbolTable]: Global variable declaration of __U_MULTI_fcstrspn_alloca_true_valid_memsafety_true_termination_i__pthread_barrier_t in cstrspn-alloca_true-valid-memsafety_true-termination.i [2018-04-11 20:31:33,577 INFO L230 ultiparseSymbolTable]: Global variable declaration of __U_MULTI_fcstrspn_alloca_true_valid_memsafety_true_termination_i____int64_t in cstrspn-alloca_true-valid-memsafety_true-termination.i [2018-04-11 20:31:33,577 INFO L230 ultiparseSymbolTable]: Global variable declaration of __U_MULTI_fcstrspn_alloca_true_valid_memsafety_true_termination_i__ldiv_t in cstrspn-alloca_true-valid-memsafety_true-termination.i [2018-04-11 20:31:33,577 INFO L230 ultiparseSymbolTable]: Global variable declaration of __U_MULTI_fcstrspn_alloca_true_valid_memsafety_true_termination_i__loff_t in cstrspn-alloca_true-valid-memsafety_true-termination.i [2018-04-11 20:31:33,577 INFO L230 ultiparseSymbolTable]: Global variable declaration of __U_MULTI_fcstrspn_alloca_true_valid_memsafety_true_termination_i____uint8_t in cstrspn-alloca_true-valid-memsafety_true-termination.i [2018-04-11 20:31:33,577 INFO L230 ultiparseSymbolTable]: Global variable declaration of __U_MULTI_fcstrspn_alloca_true_valid_memsafety_true_termination_i____key_t in cstrspn-alloca_true-valid-memsafety_true-termination.i [2018-04-11 20:31:33,577 INFO L230 ultiparseSymbolTable]: Global variable declaration of __U_MULTI_fcstrspn_alloca_true_valid_memsafety_true_termination_i__ushort in cstrspn-alloca_true-valid-memsafety_true-termination.i [2018-04-11 20:31:33,577 INFO L230 ultiparseSymbolTable]: Global variable declaration of __U_MULTI_fcstrspn_alloca_true_valid_memsafety_true_termination_i____ssize_t in cstrspn-alloca_true-valid-memsafety_true-termination.i [2018-04-11 20:31:33,577 INFO L230 ultiparseSymbolTable]: Global variable declaration of __U_MULTI_fcstrspn_alloca_true_valid_memsafety_true_termination_i__int32_t in cstrspn-alloca_true-valid-memsafety_true-termination.i [2018-04-11 20:31:33,578 INFO L230 ultiparseSymbolTable]: Global variable declaration of __U_MULTI_fcstrspn_alloca_true_valid_memsafety_true_termination_i____off_t in cstrspn-alloca_true-valid-memsafety_true-termination.i [2018-04-11 20:31:33,578 INFO L230 ultiparseSymbolTable]: Global variable declaration of __U_MULTI_fcstrspn_alloca_true_valid_memsafety_true_termination_i__ino_t in cstrspn-alloca_true-valid-memsafety_true-termination.i [2018-04-11 20:31:33,578 INFO L230 ultiparseSymbolTable]: Global variable declaration of __U_MULTI_fcstrspn_alloca_true_valid_memsafety_true_termination_i____quad_t in cstrspn-alloca_true-valid-memsafety_true-termination.i [2018-04-11 20:31:33,578 INFO L230 ultiparseSymbolTable]: Global variable declaration of __U_MULTI_fcstrspn_alloca_true_valid_memsafety_true_termination_i__fsfilcnt_t in cstrspn-alloca_true-valid-memsafety_true-termination.i [2018-04-11 20:31:33,578 INFO L230 ultiparseSymbolTable]: Global variable declaration of __U_MULTI_fcstrspn_alloca_true_valid_memsafety_true_termination_i____ino64_t in cstrspn-alloca_true-valid-memsafety_true-termination.i [2018-04-11 20:31:33,578 INFO L230 ultiparseSymbolTable]: Global variable declaration of __U_MULTI_fcstrspn_alloca_true_valid_memsafety_true_termination_i____fsfilcnt64_t in cstrspn-alloca_true-valid-memsafety_true-termination.i [2018-04-11 20:31:33,578 INFO L230 ultiparseSymbolTable]: Global variable declaration of __U_MULTI_fcstrspn_alloca_true_valid_memsafety_true_termination_i____gid_t in cstrspn-alloca_true-valid-memsafety_true-termination.i [2018-04-11 20:31:33,578 INFO L230 ultiparseSymbolTable]: Global variable declaration of __U_MULTI_fcstrspn_alloca_true_valid_memsafety_true_termination_i____syscall_slong_t in cstrspn-alloca_true-valid-memsafety_true-termination.i [2018-04-11 20:31:33,578 INFO L230 ultiparseSymbolTable]: Global variable declaration of __U_MULTI_fcstrspn_alloca_true_valid_memsafety_true_termination_i____timer_t in cstrspn-alloca_true-valid-memsafety_true-termination.i [2018-04-11 20:31:33,578 INFO L230 ultiparseSymbolTable]: Global variable declaration of __U_MULTI_fcstrspn_alloca_true_valid_memsafety_true_termination_i____blkcnt_t in cstrspn-alloca_true-valid-memsafety_true-termination.i [2018-04-11 20:31:33,578 INFO L230 ultiparseSymbolTable]: Global variable declaration of __U_MULTI_fcstrspn_alloca_true_valid_memsafety_true_termination_i__timer_t in cstrspn-alloca_true-valid-memsafety_true-termination.i [2018-04-11 20:31:33,578 INFO L230 ultiparseSymbolTable]: Global variable declaration of __U_MULTI_fcstrspn_alloca_true_valid_memsafety_true_termination_i__u_int32_t in cstrspn-alloca_true-valid-memsafety_true-termination.i [2018-04-11 20:31:33,578 INFO L230 ultiparseSymbolTable]: Global variable declaration of __U_MULTI_fcstrspn_alloca_true_valid_memsafety_true_termination_i__key_t in cstrspn-alloca_true-valid-memsafety_true-termination.i [2018-04-11 20:31:33,578 INFO L230 ultiparseSymbolTable]: Global variable declaration of __U_MULTI_fcstrspn_alloca_true_valid_memsafety_true_termination_i____nlink_t in cstrspn-alloca_true-valid-memsafety_true-termination.i [2018-04-11 20:31:33,578 INFO L230 ultiparseSymbolTable]: Global variable declaration of __U_MULTI_fcstrspn_alloca_true_valid_memsafety_true_termination_i__sigset_t in cstrspn-alloca_true-valid-memsafety_true-termination.i [2018-04-11 20:31:33,578 INFO L230 ultiparseSymbolTable]: Global variable declaration of __U_MULTI_fcstrspn_alloca_true_valid_memsafety_true_termination_i____blkcnt64_t in cstrspn-alloca_true-valid-memsafety_true-termination.i [2018-04-11 20:31:33,579 INFO L230 ultiparseSymbolTable]: Global variable declaration of __U_MULTI_fcstrspn_alloca_true_valid_memsafety_true_termination_i____uint64_t in cstrspn-alloca_true-valid-memsafety_true-termination.i [2018-04-11 20:31:33,579 INFO L230 ultiparseSymbolTable]: Global variable declaration of __U_MULTI_fcstrspn_alloca_true_valid_memsafety_true_termination_i____fsword_t in cstrspn-alloca_true-valid-memsafety_true-termination.i [2018-04-11 20:31:33,579 INFO L230 ultiparseSymbolTable]: Global variable declaration of __U_MULTI_fcstrspn_alloca_true_valid_memsafety_true_termination_i__fd_mask in cstrspn-alloca_true-valid-memsafety_true-termination.i [2018-04-11 20:31:33,579 INFO L230 ultiparseSymbolTable]: Global variable declaration of __U_MULTI_fcstrspn_alloca_true_valid_memsafety_true_termination_i__pthread_rwlockattr_t in cstrspn-alloca_true-valid-memsafety_true-termination.i [2018-04-11 20:31:33,579 INFO L230 ultiparseSymbolTable]: Global variable declaration of __U_MULTI_fcstrspn_alloca_true_valid_memsafety_true_termination_i__uint in cstrspn-alloca_true-valid-memsafety_true-termination.i [2018-04-11 20:31:33,579 INFO L230 ultiparseSymbolTable]: Global variable declaration of __U_MULTI_fcstrspn_alloca_true_valid_memsafety_true_termination_i____uid_t in cstrspn-alloca_true-valid-memsafety_true-termination.i [2018-04-11 20:31:33,579 INFO L230 ultiparseSymbolTable]: Global variable declaration of __U_MULTI_fcstrspn_alloca_true_valid_memsafety_true_termination_i__ssize_t in cstrspn-alloca_true-valid-memsafety_true-termination.i [2018-04-11 20:31:33,579 INFO L230 ultiparseSymbolTable]: Global variable declaration of __U_MULTI_fcstrspn_alloca_true_valid_memsafety_true_termination_i____id_t in cstrspn-alloca_true-valid-memsafety_true-termination.i [2018-04-11 20:31:33,579 INFO L230 ultiparseSymbolTable]: Global variable declaration of __U_MULTI_fcstrspn_alloca_true_valid_memsafety_true_termination_i__lldiv_t in cstrspn-alloca_true-valid-memsafety_true-termination.i [2018-04-11 20:31:33,579 INFO L230 ultiparseSymbolTable]: Global variable declaration of __U_MULTI_fcstrspn_alloca_true_valid_memsafety_true_termination_i__pthread_rwlock_t in cstrspn-alloca_true-valid-memsafety_true-termination.i [2018-04-11 20:31:33,579 INFO L230 ultiparseSymbolTable]: Global variable declaration of __U_MULTI_fcstrspn_alloca_true_valid_memsafety_true_termination_i__fd_set in cstrspn-alloca_true-valid-memsafety_true-termination.i [2018-04-11 20:31:33,579 INFO L230 ultiparseSymbolTable]: Global variable declaration of __U_MULTI_fcstrspn_alloca_true_valid_memsafety_true_termination_i____uint32_t in cstrspn-alloca_true-valid-memsafety_true-termination.i [2018-04-11 20:31:33,579 INFO L230 ultiparseSymbolTable]: Global variable declaration of __U_MULTI_fcstrspn_alloca_true_valid_memsafety_true_termination_i____blksize_t in cstrspn-alloca_true-valid-memsafety_true-termination.i [2018-04-11 20:31:33,579 INFO L230 ultiparseSymbolTable]: Global variable declaration of __U_MULTI_fcstrspn_alloca_true_valid_memsafety_true_termination_i__blksize_t in cstrspn-alloca_true-valid-memsafety_true-termination.i [2018-04-11 20:31:33,579 INFO L230 ultiparseSymbolTable]: Global variable declaration of __U_MULTI_fcstrspn_alloca_true_valid_memsafety_true_termination_i____dev_t in cstrspn-alloca_true-valid-memsafety_true-termination.i [2018-04-11 20:31:33,579 INFO L230 ultiparseSymbolTable]: Global variable declaration of __U_MULTI_fcstrspn_alloca_true_valid_memsafety_true_termination_i____fsblkcnt_t in cstrspn-alloca_true-valid-memsafety_true-termination.i [2018-04-11 20:31:33,579 INFO L230 ultiparseSymbolTable]: Global variable declaration of __U_MULTI_fcstrspn_alloca_true_valid_memsafety_true_termination_i____qaddr_t in cstrspn-alloca_true-valid-memsafety_true-termination.i [2018-04-11 20:31:33,580 INFO L230 ultiparseSymbolTable]: Global variable declaration of __U_MULTI_fcstrspn_alloca_true_valid_memsafety_true_termination_i__uid_t in cstrspn-alloca_true-valid-memsafety_true-termination.i [2018-04-11 20:31:33,580 INFO L230 ultiparseSymbolTable]: Global variable declaration of __U_MULTI_fcstrspn_alloca_true_valid_memsafety_true_termination_i__int16_t in cstrspn-alloca_true-valid-memsafety_true-termination.i [2018-04-11 20:31:33,580 INFO L230 ultiparseSymbolTable]: Global variable declaration of __U_MULTI_fcstrspn_alloca_true_valid_memsafety_true_termination_i____rlim64_t in cstrspn-alloca_true-valid-memsafety_true-termination.i [2018-04-11 20:31:33,580 INFO L230 ultiparseSymbolTable]: Global variable declaration of __U_MULTI_fcstrspn_alloca_true_valid_memsafety_true_termination_i__fsblkcnt_t in cstrspn-alloca_true-valid-memsafety_true-termination.i [2018-04-11 20:31:33,580 INFO L230 ultiparseSymbolTable]: Global variable declaration of __U_MULTI_fcstrspn_alloca_true_valid_memsafety_true_termination_i__time_t in cstrspn-alloca_true-valid-memsafety_true-termination.i [2018-04-11 20:31:33,580 INFO L230 ultiparseSymbolTable]: Global variable declaration of __U_MULTI_fcstrspn_alloca_true_valid_memsafety_true_termination_i__div_t in cstrspn-alloca_true-valid-memsafety_true-termination.i [2018-04-11 20:31:33,580 INFO L230 ultiparseSymbolTable]: Global variable declaration of __U_MULTI_fcstrspn_alloca_true_valid_memsafety_true_termination_i__pthread_key_t in cstrspn-alloca_true-valid-memsafety_true-termination.i [2018-04-11 20:31:33,580 INFO L230 ultiparseSymbolTable]: Global variable declaration of __U_MULTI_fcstrspn_alloca_true_valid_memsafety_true_termination_i____int32_t in cstrspn-alloca_true-valid-memsafety_true-termination.i [2018-04-11 20:31:33,580 INFO L230 ultiparseSymbolTable]: Global variable declaration of __U_MULTI_fcstrspn_alloca_true_valid_memsafety_true_termination_i____syscall_ulong_t in cstrspn-alloca_true-valid-memsafety_true-termination.i [2018-04-11 20:31:33,580 INFO L230 ultiparseSymbolTable]: Global variable declaration of __U_MULTI_fcstrspn_alloca_true_valid_memsafety_true_termination_i____rlim_t in cstrspn-alloca_true-valid-memsafety_true-termination.i [2018-04-11 20:31:33,580 INFO L230 ultiparseSymbolTable]: Global variable declaration of __U_MULTI_fcstrspn_alloca_true_valid_memsafety_true_termination_i__u_int in cstrspn-alloca_true-valid-memsafety_true-termination.i [2018-04-11 20:31:33,580 INFO L230 ultiparseSymbolTable]: Global variable declaration of __U_MULTI_fcstrspn_alloca_true_valid_memsafety_true_termination_i__blkcnt_t in cstrspn-alloca_true-valid-memsafety_true-termination.i [2018-04-11 20:31:33,580 INFO L230 ultiparseSymbolTable]: Global variable declaration of __U_MULTI_fcstrspn_alloca_true_valid_memsafety_true_termination_i__pthread_mutex_t in cstrspn-alloca_true-valid-memsafety_true-termination.i [2018-04-11 20:31:33,580 INFO L230 ultiparseSymbolTable]: Global variable declaration of __U_MULTI_fcstrspn_alloca_true_valid_memsafety_true_termination_i____fsfilcnt_t in cstrspn-alloca_true-valid-memsafety_true-termination.i [2018-04-11 20:31:33,580 INFO L230 ultiparseSymbolTable]: Global variable declaration of __U_MULTI_fcstrspn_alloca_true_valid_memsafety_true_termination_i____pthread_list_t in cstrspn-alloca_true-valid-memsafety_true-termination.i [2018-04-11 20:31:33,580 INFO L230 ultiparseSymbolTable]: Global variable declaration of __U_MULTI_fcstrspn_alloca_true_valid_memsafety_true_termination_i__pthread_barrierattr_t in cstrspn-alloca_true-valid-memsafety_true-termination.i [2018-04-11 20:31:33,580 INFO L230 ultiparseSymbolTable]: Global variable declaration of __U_MULTI_fcstrspn_alloca_true_valid_memsafety_true_termination_i____time_t in cstrspn-alloca_true-valid-memsafety_true-termination.i [2018-04-11 20:31:33,581 INFO L230 ultiparseSymbolTable]: Global variable declaration of __U_MULTI_fcstrspn_alloca_true_valid_memsafety_true_termination_i__pthread_mutexattr_t in cstrspn-alloca_true-valid-memsafety_true-termination.i [2018-04-11 20:31:33,581 INFO L230 ultiparseSymbolTable]: Global variable declaration of __U_MULTI_fcstrspn_alloca_true_valid_memsafety_true_termination_i____off64_t in cstrspn-alloca_true-valid-memsafety_true-termination.i [2018-04-11 20:31:33,581 INFO L230 ultiparseSymbolTable]: Global variable declaration of __U_MULTI_fcstrspn_alloca_true_valid_memsafety_true_termination_i____suseconds_t in cstrspn-alloca_true-valid-memsafety_true-termination.i [2018-04-11 20:31:33,581 INFO L230 ultiparseSymbolTable]: Global variable declaration of __U_MULTI_fcstrspn_alloca_true_valid_memsafety_true_termination_i__int8_t in cstrspn-alloca_true-valid-memsafety_true-termination.i [2018-04-11 20:31:33,581 INFO L230 ultiparseSymbolTable]: Global variable declaration of __U_MULTI_fcstrspn_alloca_true_valid_memsafety_true_termination_i____u_char in cstrspn-alloca_true-valid-memsafety_true-termination.i [2018-04-11 20:31:33,581 INFO L230 ultiparseSymbolTable]: Global variable declaration of __U_MULTI_fcstrspn_alloca_true_valid_memsafety_true_termination_i__u_quad_t in cstrspn-alloca_true-valid-memsafety_true-termination.i [2018-04-11 20:31:33,581 INFO L230 ultiparseSymbolTable]: Global variable declaration of __U_MULTI_fcstrspn_alloca_true_valid_memsafety_true_termination_i____uint16_t in cstrspn-alloca_true-valid-memsafety_true-termination.i [2018-04-11 20:31:33,581 INFO L230 ultiparseSymbolTable]: Global variable declaration of __U_MULTI_fcstrspn_alloca_true_valid_memsafety_true_termination_i____fsid_t in cstrspn-alloca_true-valid-memsafety_true-termination.i [2018-04-11 20:31:33,581 INFO L230 ultiparseSymbolTable]: Global variable declaration of __U_MULTI_fcstrspn_alloca_true_valid_memsafety_true_termination_i____socklen_t in cstrspn-alloca_true-valid-memsafety_true-termination.i [2018-04-11 20:31:33,581 INFO L230 ultiparseSymbolTable]: Global variable declaration of __U_MULTI_fcstrspn_alloca_true_valid_memsafety_true_termination_i__daddr_t in cstrspn-alloca_true-valid-memsafety_true-termination.i [2018-04-11 20:31:33,581 INFO L230 ultiparseSymbolTable]: Global variable declaration of __U_MULTI_fcstrspn_alloca_true_valid_memsafety_true_termination_i__u_int64_t in cstrspn-alloca_true-valid-memsafety_true-termination.i [2018-04-11 20:31:33,581 INFO L230 ultiparseSymbolTable]: Global variable declaration of __U_MULTI_fcstrspn_alloca_true_valid_memsafety_true_termination_i__pid_t in cstrspn-alloca_true-valid-memsafety_true-termination.i [2018-04-11 20:31:33,581 INFO L230 ultiparseSymbolTable]: Global variable declaration of __U_MULTI_fcstrspn_alloca_true_valid_memsafety_true_termination_i__clock_t in cstrspn-alloca_true-valid-memsafety_true-termination.i [2018-04-11 20:31:33,581 INFO L230 ultiparseSymbolTable]: Global variable declaration of __U_MULTI_fcstrspn_alloca_true_valid_memsafety_true_termination_i____mode_t in cstrspn-alloca_true-valid-memsafety_true-termination.i [2018-04-11 20:31:33,581 INFO L230 ultiparseSymbolTable]: Global variable declaration of __U_MULTI_fcstrspn_alloca_true_valid_memsafety_true_termination_i____int16_t in cstrspn-alloca_true-valid-memsafety_true-termination.i [2018-04-11 20:31:33,581 INFO L230 ultiparseSymbolTable]: Global variable declaration of __U_MULTI_fcstrspn_alloca_true_valid_memsafety_true_termination_i__off_t in cstrspn-alloca_true-valid-memsafety_true-termination.i [2018-04-11 20:31:33,581 INFO L230 ultiparseSymbolTable]: Global variable declaration of __U_MULTI_fcstrspn_alloca_true_valid_memsafety_true_termination_i____u_long in cstrspn-alloca_true-valid-memsafety_true-termination.i [2018-04-11 20:31:33,581 INFO L230 ultiparseSymbolTable]: Global variable declaration of __U_MULTI_fcstrspn_alloca_true_valid_memsafety_true_termination_i____WAIT_STATUS in cstrspn-alloca_true-valid-memsafety_true-termination.i [2018-04-11 20:31:33,581 INFO L230 ultiparseSymbolTable]: Global variable declaration of __U_MULTI_fcstrspn_alloca_true_valid_memsafety_true_termination_i__u_char in cstrspn-alloca_true-valid-memsafety_true-termination.i [2018-04-11 20:31:33,582 INFO L230 ultiparseSymbolTable]: Global variable declaration of __U_MULTI_fcstrspn_alloca_true_valid_memsafety_true_termination_i____int8_t in cstrspn-alloca_true-valid-memsafety_true-termination.i [2018-04-11 20:31:33,582 INFO L230 ultiparseSymbolTable]: Global variable declaration of __U_MULTI_fcstrspn_alloca_true_valid_memsafety_true_termination_i____loff_t in cstrspn-alloca_true-valid-memsafety_true-termination.i [2018-04-11 20:31:33,582 INFO L230 ultiparseSymbolTable]: Global variable declaration of __U_MULTI_fcstrspn_alloca_true_valid_memsafety_true_termination_i____intptr_t in cstrspn-alloca_true-valid-memsafety_true-termination.i [2018-04-11 20:31:33,582 INFO L230 ultiparseSymbolTable]: Global variable declaration of __U_MULTI_fcstrspn_alloca_true_valid_memsafety_true_termination_i__pthread_cond_t in cstrspn-alloca_true-valid-memsafety_true-termination.i [2018-04-11 20:31:33,582 INFO L230 ultiparseSymbolTable]: Global variable declaration of __U_MULTI_fcstrspn_alloca_true_valid_memsafety_true_termination_i__size_t in cstrspn-alloca_true-valid-memsafety_true-termination.i [2018-04-11 20:31:33,582 INFO L230 ultiparseSymbolTable]: Global variable declaration of __U_MULTI_fcstrspn_alloca_true_valid_memsafety_true_termination_i__fsid_t in cstrspn-alloca_true-valid-memsafety_true-termination.i [2018-04-11 20:31:33,582 INFO L230 ultiparseSymbolTable]: Global variable declaration of __U_MULTI_fcstrspn_alloca_true_valid_memsafety_true_termination_i__caddr_t in cstrspn-alloca_true-valid-memsafety_true-termination.i [2018-04-11 20:31:33,582 INFO L230 ultiparseSymbolTable]: Global variable declaration of __U_MULTI_fcstrspn_alloca_true_valid_memsafety_true_termination_i____sigset_t in cstrspn-alloca_true-valid-memsafety_true-termination.i [2018-04-11 20:31:33,582 INFO L230 ultiparseSymbolTable]: Global variable declaration of __U_MULTI_fcstrspn_alloca_true_valid_memsafety_true_termination_i__pthread_spinlock_t in cstrspn-alloca_true-valid-memsafety_true-termination.i [2018-04-11 20:31:33,582 INFO L230 ultiparseSymbolTable]: Global variable declaration of __U_MULTI_fcstrspn_alloca_true_valid_memsafety_true_termination_i____u_short in cstrspn-alloca_true-valid-memsafety_true-termination.i [2018-04-11 20:31:33,582 INFO L230 ultiparseSymbolTable]: Global variable declaration of __U_MULTI_fcstrspn_alloca_true_valid_memsafety_true_termination_i__mode_t in cstrspn-alloca_true-valid-memsafety_true-termination.i [2018-04-11 20:31:33,582 INFO L230 ultiparseSymbolTable]: Global variable declaration of __U_MULTI_fcstrspn_alloca_true_valid_memsafety_true_termination_i__suseconds_t in cstrspn-alloca_true-valid-memsafety_true-termination.i [2018-04-11 20:31:33,582 INFO L230 ultiparseSymbolTable]: Global variable declaration of __U_MULTI_fcstrspn_alloca_true_valid_memsafety_true_termination_i____ino_t in cstrspn-alloca_true-valid-memsafety_true-termination.i [2018-04-11 20:31:33,582 INFO L230 ultiparseSymbolTable]: Global variable declaration of __U_MULTI_fcstrspn_alloca_true_valid_memsafety_true_termination_i__u_short in cstrspn-alloca_true-valid-memsafety_true-termination.i [2018-04-11 20:31:33,582 INFO L230 ultiparseSymbolTable]: Global variable declaration of __U_MULTI_fcstrspn_alloca_true_valid_memsafety_true_termination_i____caddr_t in cstrspn-alloca_true-valid-memsafety_true-termination.i [2018-04-11 20:31:33,582 INFO L230 ultiparseSymbolTable]: Global variable declaration of __U_MULTI_fcstrspn_alloca_true_valid_memsafety_true_termination_i__u_long in cstrspn-alloca_true-valid-memsafety_true-termination.i [2018-04-11 20:31:33,582 INFO L230 ultiparseSymbolTable]: Global variable declaration of __U_MULTI_fcstrspn_alloca_true_valid_memsafety_true_termination_i__ulong in cstrspn-alloca_true-valid-memsafety_true-termination.i [2018-04-11 20:31:33,582 INFO L230 ultiparseSymbolTable]: Global variable declaration of __U_MULTI_fcstrspn_alloca_true_valid_memsafety_true_termination_i__gid_t in cstrspn-alloca_true-valid-memsafety_true-termination.i [2018-04-11 20:31:33,594 INFO L330 CDTParser]: Deleted temporary CDT project at /home/ultimate/work/ultimate/releaseScripts/default/UAutomizer-linux/data/FLAGed9eef0f6 [2018-04-11 20:31:33,598 INFO L304 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2018-04-11 20:31:33,600 INFO L131 ToolchainWalker]: Walking toolchain with 4 elements. [2018-04-11 20:31:33,600 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2018-04-11 20:31:33,600 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2018-04-11 20:31:33,605 INFO L276 PluginConnector]: CACSL2BoogieTranslator initialized [2018-04-11 20:31:33,605 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 11.04 08:31:33" (1/1) ... [2018-04-11 20:31:33,607 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@583a039f and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.04 08:31:33, skipping insertion in model container [2018-04-11 20:31:33,607 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 11.04 08:31:33" (1/1) ... [2018-04-11 20:31:33,618 INFO L167 Dispatcher]: Using SV-COMP mode [2018-04-11 20:31:33,641 INFO L167 Dispatcher]: Using SV-COMP mode [2018-04-11 20:31:33,787 INFO L175 PostProcessor]: Settings: Checked method=main [2018-04-11 20:31:33,824 INFO L175 PostProcessor]: Settings: Checked method=main [2018-04-11 20:31:33,830 INFO L100 SccComputation]: Graph consists of 0 InCaSumBalls and 112 non ball SCCs. Number of states in SCCs 112. [2018-04-11 20:31:33,863 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.04 08:31:33 WrapperNode [2018-04-11 20:31:33,863 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2018-04-11 20:31:33,864 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2018-04-11 20:31:33,864 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2018-04-11 20:31:33,864 INFO L276 PluginConnector]: Boogie Preprocessor initialized [2018-04-11 20:31:33,874 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.04 08:31:33" (1/1) ... [2018-04-11 20:31:33,874 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.04 08:31:33" (1/1) ... [2018-04-11 20:31:33,888 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.04 08:31:33" (1/1) ... [2018-04-11 20:31:33,889 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.04 08:31:33" (1/1) ... [2018-04-11 20:31:33,898 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.04 08:31:33" (1/1) ... [2018-04-11 20:31:33,903 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.04 08:31:33" (1/1) ... [2018-04-11 20:31:33,906 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.04 08:31:33" (1/1) ... [2018-04-11 20:31:33,909 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2018-04-11 20:31:33,910 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2018-04-11 20:31:33,910 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2018-04-11 20:31:33,910 INFO L276 PluginConnector]: RCFGBuilder initialized [2018-04-11 20:31:33,911 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.04 08:31:33" (1/1) ... No working directory specified, using /home/ultimate/work/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2018-04-11 20:31:34,018 INFO L136 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2018-04-11 20:31:34,019 INFO L136 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2018-04-11 20:31:34,019 INFO L136 BoogieDeclarations]: Found implementation of procedure __U_MULTI_fcstrspn_alloca_true_valid_memsafety_true_termination_i____bswap_32 [2018-04-11 20:31:34,019 INFO L136 BoogieDeclarations]: Found implementation of procedure __U_MULTI_fcstrspn_alloca_true_valid_memsafety_true_termination_i____bswap_64 [2018-04-11 20:31:34,019 INFO L136 BoogieDeclarations]: Found implementation of procedure cstrspn [2018-04-11 20:31:34,019 INFO L136 BoogieDeclarations]: Found implementation of procedure main [2018-04-11 20:31:34,019 INFO L128 BoogieDeclarations]: Found specification of procedure __U_MULTI_fcstrspn_alloca_true_valid_memsafety_true_termination_i____bswap_32 [2018-04-11 20:31:34,019 INFO L128 BoogieDeclarations]: Found specification of procedure __U_MULTI_fcstrspn_alloca_true_valid_memsafety_true_termination_i____bswap_64 [2018-04-11 20:31:34,019 INFO L128 BoogieDeclarations]: Found specification of procedure __ctype_get_mb_cur_max [2018-04-11 20:31:34,019 INFO L128 BoogieDeclarations]: Found specification of procedure atof [2018-04-11 20:31:34,020 INFO L128 BoogieDeclarations]: Found specification of procedure atoi [2018-04-11 20:31:34,020 INFO L128 BoogieDeclarations]: Found specification of procedure atol [2018-04-11 20:31:34,020 INFO L128 BoogieDeclarations]: Found specification of procedure atoll [2018-04-11 20:31:34,020 INFO L128 BoogieDeclarations]: Found specification of procedure strtod [2018-04-11 20:31:34,020 INFO L128 BoogieDeclarations]: Found specification of procedure strtof [2018-04-11 20:31:34,020 INFO L128 BoogieDeclarations]: Found specification of procedure strtold [2018-04-11 20:31:34,020 INFO L128 BoogieDeclarations]: Found specification of procedure strtol [2018-04-11 20:31:34,020 INFO L128 BoogieDeclarations]: Found specification of procedure strtoul [2018-04-11 20:31:34,021 INFO L128 BoogieDeclarations]: Found specification of procedure strtoq [2018-04-11 20:31:34,021 INFO L128 BoogieDeclarations]: Found specification of procedure strtouq [2018-04-11 20:31:34,021 INFO L128 BoogieDeclarations]: Found specification of procedure strtoll [2018-04-11 20:31:34,021 INFO L128 BoogieDeclarations]: Found specification of procedure strtoull [2018-04-11 20:31:34,021 INFO L128 BoogieDeclarations]: Found specification of procedure l64a [2018-04-11 20:31:34,021 INFO L128 BoogieDeclarations]: Found specification of procedure a64l [2018-04-11 20:31:34,021 INFO L128 BoogieDeclarations]: Found specification of procedure select [2018-04-11 20:31:34,021 INFO L128 BoogieDeclarations]: Found specification of procedure pselect [2018-04-11 20:31:34,022 INFO L128 BoogieDeclarations]: Found specification of procedure gnu_dev_major [2018-04-11 20:31:34,022 INFO L128 BoogieDeclarations]: Found specification of procedure gnu_dev_minor [2018-04-11 20:31:34,022 INFO L128 BoogieDeclarations]: Found specification of procedure gnu_dev_makedev [2018-04-11 20:31:34,022 INFO L128 BoogieDeclarations]: Found specification of procedure random [2018-04-11 20:31:34,022 INFO L128 BoogieDeclarations]: Found specification of procedure srandom [2018-04-11 20:31:34,022 INFO L128 BoogieDeclarations]: Found specification of procedure initstate [2018-04-11 20:31:34,022 INFO L128 BoogieDeclarations]: Found specification of procedure setstate [2018-04-11 20:31:34,022 INFO L128 BoogieDeclarations]: Found specification of procedure random_r [2018-04-11 20:31:34,023 INFO L128 BoogieDeclarations]: Found specification of procedure srandom_r [2018-04-11 20:31:34,023 INFO L128 BoogieDeclarations]: Found specification of procedure initstate_r [2018-04-11 20:31:34,023 INFO L128 BoogieDeclarations]: Found specification of procedure setstate_r [2018-04-11 20:31:34,023 INFO L128 BoogieDeclarations]: Found specification of procedure rand [2018-04-11 20:31:34,023 INFO L128 BoogieDeclarations]: Found specification of procedure srand [2018-04-11 20:31:34,023 INFO L128 BoogieDeclarations]: Found specification of procedure rand_r [2018-04-11 20:31:34,023 INFO L128 BoogieDeclarations]: Found specification of procedure drand48 [2018-04-11 20:31:34,023 INFO L128 BoogieDeclarations]: Found specification of procedure erand48 [2018-04-11 20:31:34,023 INFO L128 BoogieDeclarations]: Found specification of procedure lrand48 [2018-04-11 20:31:34,024 INFO L128 BoogieDeclarations]: Found specification of procedure nrand48 [2018-04-11 20:31:34,024 INFO L128 BoogieDeclarations]: Found specification of procedure mrand48 [2018-04-11 20:31:34,024 INFO L128 BoogieDeclarations]: Found specification of procedure jrand48 [2018-04-11 20:31:34,024 INFO L128 BoogieDeclarations]: Found specification of procedure srand48 [2018-04-11 20:31:34,024 INFO L128 BoogieDeclarations]: Found specification of procedure seed48 [2018-04-11 20:31:34,024 INFO L128 BoogieDeclarations]: Found specification of procedure lcong48 [2018-04-11 20:31:34,024 INFO L128 BoogieDeclarations]: Found specification of procedure drand48_r [2018-04-11 20:31:34,024 INFO L128 BoogieDeclarations]: Found specification of procedure erand48_r [2018-04-11 20:31:34,024 INFO L128 BoogieDeclarations]: Found specification of procedure lrand48_r [2018-04-11 20:31:34,025 INFO L128 BoogieDeclarations]: Found specification of procedure nrand48_r [2018-04-11 20:31:34,025 INFO L128 BoogieDeclarations]: Found specification of procedure mrand48_r [2018-04-11 20:31:34,025 INFO L128 BoogieDeclarations]: Found specification of procedure jrand48_r [2018-04-11 20:31:34,025 INFO L128 BoogieDeclarations]: Found specification of procedure srand48_r [2018-04-11 20:31:34,025 INFO L128 BoogieDeclarations]: Found specification of procedure seed48_r [2018-04-11 20:31:34,025 INFO L128 BoogieDeclarations]: Found specification of procedure lcong48_r [2018-04-11 20:31:34,025 INFO L128 BoogieDeclarations]: Found specification of procedure malloc [2018-04-11 20:31:34,025 INFO L128 BoogieDeclarations]: Found specification of procedure calloc [2018-04-11 20:31:34,025 INFO L128 BoogieDeclarations]: Found specification of procedure realloc [2018-04-11 20:31:34,026 INFO L128 BoogieDeclarations]: Found specification of procedure free [2018-04-11 20:31:34,026 INFO L128 BoogieDeclarations]: Found specification of procedure cfree [2018-04-11 20:31:34,026 INFO L128 BoogieDeclarations]: Found specification of procedure alloca [2018-04-11 20:31:34,026 INFO L128 BoogieDeclarations]: Found specification of procedure valloc [2018-04-11 20:31:34,026 INFO L128 BoogieDeclarations]: Found specification of procedure posix_memalign [2018-04-11 20:31:34,026 INFO L128 BoogieDeclarations]: Found specification of procedure abort [2018-04-11 20:31:34,026 INFO L128 BoogieDeclarations]: Found specification of procedure atexit [2018-04-11 20:31:34,026 INFO L128 BoogieDeclarations]: Found specification of procedure on_exit [2018-04-11 20:31:34,026 INFO L128 BoogieDeclarations]: Found specification of procedure exit [2018-04-11 20:31:34,027 INFO L128 BoogieDeclarations]: Found specification of procedure _Exit [2018-04-11 20:31:34,027 INFO L128 BoogieDeclarations]: Found specification of procedure getenv [2018-04-11 20:31:34,027 INFO L128 BoogieDeclarations]: Found specification of procedure putenv [2018-04-11 20:31:34,027 INFO L128 BoogieDeclarations]: Found specification of procedure setenv [2018-04-11 20:31:34,027 INFO L128 BoogieDeclarations]: Found specification of procedure unsetenv [2018-04-11 20:31:34,027 INFO L128 BoogieDeclarations]: Found specification of procedure clearenv [2018-04-11 20:31:34,027 INFO L128 BoogieDeclarations]: Found specification of procedure mktemp [2018-04-11 20:31:34,027 INFO L128 BoogieDeclarations]: Found specification of procedure mkstemp [2018-04-11 20:31:34,027 INFO L128 BoogieDeclarations]: Found specification of procedure mkstemps [2018-04-11 20:31:34,027 INFO L128 BoogieDeclarations]: Found specification of procedure mkdtemp [2018-04-11 20:31:34,028 INFO L128 BoogieDeclarations]: Found specification of procedure system [2018-04-11 20:31:34,028 INFO L128 BoogieDeclarations]: Found specification of procedure realpath [2018-04-11 20:31:34,028 INFO L128 BoogieDeclarations]: Found specification of procedure bsearch [2018-04-11 20:31:34,028 INFO L128 BoogieDeclarations]: Found specification of procedure qsort [2018-04-11 20:31:34,028 INFO L128 BoogieDeclarations]: Found specification of procedure abs [2018-04-11 20:31:34,028 INFO L128 BoogieDeclarations]: Found specification of procedure labs [2018-04-11 20:31:34,028 INFO L128 BoogieDeclarations]: Found specification of procedure llabs [2018-04-11 20:31:34,028 INFO L128 BoogieDeclarations]: Found specification of procedure div [2018-04-11 20:31:34,028 INFO L128 BoogieDeclarations]: Found specification of procedure ldiv [2018-04-11 20:31:34,028 INFO L128 BoogieDeclarations]: Found specification of procedure lldiv [2018-04-11 20:31:34,029 INFO L128 BoogieDeclarations]: Found specification of procedure ecvt [2018-04-11 20:31:34,029 INFO L128 BoogieDeclarations]: Found specification of procedure fcvt [2018-04-11 20:31:34,029 INFO L128 BoogieDeclarations]: Found specification of procedure gcvt [2018-04-11 20:31:34,029 INFO L128 BoogieDeclarations]: Found specification of procedure qecvt [2018-04-11 20:31:34,029 INFO L128 BoogieDeclarations]: Found specification of procedure qfcvt [2018-04-11 20:31:34,029 INFO L128 BoogieDeclarations]: Found specification of procedure qgcvt [2018-04-11 20:31:34,029 INFO L128 BoogieDeclarations]: Found specification of procedure ecvt_r [2018-04-11 20:31:34,029 INFO L128 BoogieDeclarations]: Found specification of procedure fcvt_r [2018-04-11 20:31:34,029 INFO L128 BoogieDeclarations]: Found specification of procedure qecvt_r [2018-04-11 20:31:34,029 INFO L128 BoogieDeclarations]: Found specification of procedure qfcvt_r [2018-04-11 20:31:34,030 INFO L128 BoogieDeclarations]: Found specification of procedure mblen [2018-04-11 20:31:34,030 INFO L128 BoogieDeclarations]: Found specification of procedure mbtowc [2018-04-11 20:31:34,030 INFO L128 BoogieDeclarations]: Found specification of procedure wctomb [2018-04-11 20:31:34,030 INFO L128 BoogieDeclarations]: Found specification of procedure mbstowcs [2018-04-11 20:31:34,030 INFO L128 BoogieDeclarations]: Found specification of procedure wcstombs [2018-04-11 20:31:34,030 INFO L128 BoogieDeclarations]: Found specification of procedure rpmatch [2018-04-11 20:31:34,030 INFO L128 BoogieDeclarations]: Found specification of procedure getsubopt [2018-04-11 20:31:34,030 INFO L128 BoogieDeclarations]: Found specification of procedure getloadavg [2018-04-11 20:31:34,030 INFO L128 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_int [2018-04-11 20:31:34,030 INFO L128 BoogieDeclarations]: Found specification of procedure cstrspn [2018-04-11 20:31:34,031 INFO L128 BoogieDeclarations]: Found specification of procedure read~int [2018-04-11 20:31:34,031 INFO L128 BoogieDeclarations]: Found specification of procedure main [2018-04-11 20:31:34,031 INFO L128 BoogieDeclarations]: Found specification of procedure #Ultimate.alloc [2018-04-11 20:31:34,031 INFO L128 BoogieDeclarations]: Found specification of procedure write~int [2018-04-11 20:31:34,031 INFO L128 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2018-04-11 20:31:34,031 INFO L128 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2018-04-11 20:31:34,031 INFO L128 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2018-04-11 20:31:34,031 INFO L128 BoogieDeclarations]: Found specification of procedure write~unchecked~int [2018-04-11 20:31:34,302 INFO L259 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2018-04-11 20:31:34,302 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 11.04 08:31:34 BoogieIcfgContainer [2018-04-11 20:31:34,302 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2018-04-11 20:31:34,303 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2018-04-11 20:31:34,303 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2018-04-11 20:31:34,305 INFO L276 PluginConnector]: TraceAbstraction initialized [2018-04-11 20:31:34,306 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 11.04 08:31:33" (1/3) ... [2018-04-11 20:31:34,306 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@618f6f22 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 11.04 08:31:34, skipping insertion in model container [2018-04-11 20:31:34,306 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.04 08:31:33" (2/3) ... [2018-04-11 20:31:34,307 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@618f6f22 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 11.04 08:31:34, skipping insertion in model container [2018-04-11 20:31:34,307 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 11.04 08:31:34" (3/3) ... [2018-04-11 20:31:34,308 INFO L107 eAbstractionObserver]: Analyzing ICFG cstrspn-alloca_true-valid-memsafety_true-termination.i [2018-04-11 20:31:34,316 INFO L131 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2018-04-11 20:31:34,323 INFO L143 ceAbstractionStarter]: Appying trace abstraction to program that has 15 error locations. [2018-04-11 20:31:34,353 INFO L128 ementStrategyFactory]: Using default assertion order modulation [2018-04-11 20:31:34,353 INFO L369 AbstractCegarLoop]: Interprodecural is true [2018-04-11 20:31:34,353 INFO L370 AbstractCegarLoop]: Hoare is false [2018-04-11 20:31:34,353 INFO L371 AbstractCegarLoop]: Compute interpolants for FPandBP [2018-04-11 20:31:34,353 INFO L372 AbstractCegarLoop]: Backedges is TWOTRACK [2018-04-11 20:31:34,353 INFO L373 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2018-04-11 20:31:34,354 INFO L374 AbstractCegarLoop]: Difference is false [2018-04-11 20:31:34,354 INFO L375 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2018-04-11 20:31:34,354 INFO L380 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2018-04-11 20:31:34,354 INFO L87 2NestedWordAutomaton]: Mode: main mode - execution starts in main procedure [2018-04-11 20:31:34,362 INFO L276 IsEmpty]: Start isEmpty. Operand 58 states. [2018-04-11 20:31:34,367 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 14 [2018-04-11 20:31:34,367 INFO L347 BasicCegarLoop]: Found error trace [2018-04-11 20:31:34,368 INFO L355 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-04-11 20:31:34,368 INFO L408 AbstractCegarLoop]: === Iteration 1 === [mainErr3RequiresViolation, mainErr1RequiresViolation, mainErr2RequiresViolation, mainErr4EnsuresViolationMEMORY_LEAK, mainErr0RequiresViolation, cstrspnErr7RequiresViolation, cstrspnErr5RequiresViolation, cstrspnErr1RequiresViolation, cstrspnErr0RequiresViolation, cstrspnErr6RequiresViolation, cstrspnErr8RequiresViolation, cstrspnErr2RequiresViolation, cstrspnErr4RequiresViolation, cstrspnErr3RequiresViolation, cstrspnErr9RequiresViolation]=== [2018-04-11 20:31:34,370 INFO L82 PathProgramCache]: Analyzing trace with hash 2018700559, now seen corresponding path program 1 times [2018-04-11 20:31:34,371 INFO L213 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-04-11 20:31:34,372 INFO L68 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-04-11 20:31:34,399 INFO L119 rtionOrderModulation]: Craig nested/tree interpolation forces the following order [2018-04-11 20:31:34,399 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-04-11 20:31:34,399 INFO L119 rtionOrderModulation]: Craig nested/tree interpolation forces the following order [2018-04-11 20:31:34,434 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-04-11 20:31:34,439 WARN L137 erpolLogProxyWrapper]: Using partial proofs (cut at CNF-level). Set option :produce-proofs to true to get complete proofs. [2018-04-11 20:31:34,505 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-04-11 20:31:34,507 INFO L320 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-04-11 20:31:34,508 INFO L335 seRefinementStrategy]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2018-04-11 20:31:34,509 INFO L442 AbstractCegarLoop]: Interpolant automaton has 4 states [2018-04-11 20:31:34,516 INFO L132 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2018-04-11 20:31:34,517 INFO L133 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2018-04-11 20:31:34,519 INFO L87 Difference]: Start difference. First operand 58 states. Second operand 4 states. [2018-04-11 20:31:34,627 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-04-11 20:31:34,627 INFO L93 Difference]: Finished difference Result 57 states and 62 transitions. [2018-04-11 20:31:34,627 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2018-04-11 20:31:34,628 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 13 [2018-04-11 20:31:34,628 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-04-11 20:31:34,636 INFO L225 Difference]: With dead ends: 57 [2018-04-11 20:31:34,636 INFO L226 Difference]: Without dead ends: 54 [2018-04-11 20:31:34,637 INFO L567 BasicCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2018-04-11 20:31:34,648 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 54 states. [2018-04-11 20:31:34,658 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 54 to 54. [2018-04-11 20:31:34,659 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 54 states. [2018-04-11 20:31:34,660 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 54 states to 54 states and 59 transitions. [2018-04-11 20:31:34,661 INFO L78 Accepts]: Start accepts. Automaton has 54 states and 59 transitions. Word has length 13 [2018-04-11 20:31:34,661 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-04-11 20:31:34,661 INFO L459 AbstractCegarLoop]: Abstraction has 54 states and 59 transitions. [2018-04-11 20:31:34,661 INFO L460 AbstractCegarLoop]: Interpolant automaton has 4 states. [2018-04-11 20:31:34,661 INFO L276 IsEmpty]: Start isEmpty. Operand 54 states and 59 transitions. [2018-04-11 20:31:34,662 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 14 [2018-04-11 20:31:34,662 INFO L347 BasicCegarLoop]: Found error trace [2018-04-11 20:31:34,662 INFO L355 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-04-11 20:31:34,662 INFO L408 AbstractCegarLoop]: === Iteration 2 === [mainErr3RequiresViolation, mainErr1RequiresViolation, mainErr2RequiresViolation, mainErr4EnsuresViolationMEMORY_LEAK, mainErr0RequiresViolation, cstrspnErr7RequiresViolation, cstrspnErr5RequiresViolation, cstrspnErr1RequiresViolation, cstrspnErr0RequiresViolation, cstrspnErr6RequiresViolation, cstrspnErr8RequiresViolation, cstrspnErr2RequiresViolation, cstrspnErr4RequiresViolation, cstrspnErr3RequiresViolation, cstrspnErr9RequiresViolation]=== [2018-04-11 20:31:34,662 INFO L82 PathProgramCache]: Analyzing trace with hash 2018700560, now seen corresponding path program 1 times [2018-04-11 20:31:34,662 INFO L213 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-04-11 20:31:34,662 INFO L68 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-04-11 20:31:34,663 INFO L119 rtionOrderModulation]: Craig nested/tree interpolation forces the following order [2018-04-11 20:31:34,663 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-04-11 20:31:34,663 INFO L119 rtionOrderModulation]: Craig nested/tree interpolation forces the following order [2018-04-11 20:31:34,677 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-04-11 20:31:34,678 WARN L137 erpolLogProxyWrapper]: Using partial proofs (cut at CNF-level). Set option :produce-proofs to true to get complete proofs. [2018-04-11 20:31:34,748 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-04-11 20:31:34,748 INFO L320 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-04-11 20:31:34,748 INFO L335 seRefinementStrategy]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2018-04-11 20:31:34,749 INFO L442 AbstractCegarLoop]: Interpolant automaton has 6 states [2018-04-11 20:31:34,749 INFO L132 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2018-04-11 20:31:34,749 INFO L133 InterpolantAutomaton]: CoverageRelationStatistics Valid=13, Invalid=17, Unknown=0, NotChecked=0, Total=30 [2018-04-11 20:31:34,749 INFO L87 Difference]: Start difference. First operand 54 states and 59 transitions. Second operand 6 states. [2018-04-11 20:31:34,816 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-04-11 20:31:34,817 INFO L93 Difference]: Finished difference Result 53 states and 58 transitions. [2018-04-11 20:31:34,817 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2018-04-11 20:31:34,817 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 13 [2018-04-11 20:31:34,817 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-04-11 20:31:34,817 INFO L225 Difference]: With dead ends: 53 [2018-04-11 20:31:34,817 INFO L226 Difference]: Without dead ends: 53 [2018-04-11 20:31:34,818 INFO L567 BasicCegarLoop]: 0 DeclaredPredicates, 6 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=19, Invalid=23, Unknown=0, NotChecked=0, Total=42 [2018-04-11 20:31:34,818 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 53 states. [2018-04-11 20:31:34,820 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 53 to 53. [2018-04-11 20:31:34,820 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 53 states. [2018-04-11 20:31:34,821 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 53 states to 53 states and 58 transitions. [2018-04-11 20:31:34,821 INFO L78 Accepts]: Start accepts. Automaton has 53 states and 58 transitions. Word has length 13 [2018-04-11 20:31:34,821 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-04-11 20:31:34,821 INFO L459 AbstractCegarLoop]: Abstraction has 53 states and 58 transitions. [2018-04-11 20:31:34,821 INFO L460 AbstractCegarLoop]: Interpolant automaton has 6 states. [2018-04-11 20:31:34,821 INFO L276 IsEmpty]: Start isEmpty. Operand 53 states and 58 transitions. [2018-04-11 20:31:34,821 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 15 [2018-04-11 20:31:34,821 INFO L347 BasicCegarLoop]: Found error trace [2018-04-11 20:31:34,822 INFO L355 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-04-11 20:31:34,822 INFO L408 AbstractCegarLoop]: === Iteration 3 === [mainErr3RequiresViolation, mainErr1RequiresViolation, mainErr2RequiresViolation, mainErr4EnsuresViolationMEMORY_LEAK, mainErr0RequiresViolation, cstrspnErr7RequiresViolation, cstrspnErr5RequiresViolation, cstrspnErr1RequiresViolation, cstrspnErr0RequiresViolation, cstrspnErr6RequiresViolation, cstrspnErr8RequiresViolation, cstrspnErr2RequiresViolation, cstrspnErr4RequiresViolation, cstrspnErr3RequiresViolation, cstrspnErr9RequiresViolation]=== [2018-04-11 20:31:34,822 INFO L82 PathProgramCache]: Analyzing trace with hash -1844792117, now seen corresponding path program 1 times [2018-04-11 20:31:34,822 INFO L213 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-04-11 20:31:34,822 INFO L68 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-04-11 20:31:34,822 INFO L119 rtionOrderModulation]: Craig nested/tree interpolation forces the following order [2018-04-11 20:31:34,823 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-04-11 20:31:34,823 INFO L119 rtionOrderModulation]: Craig nested/tree interpolation forces the following order [2018-04-11 20:31:34,832 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-04-11 20:31:34,833 WARN L137 erpolLogProxyWrapper]: Using partial proofs (cut at CNF-level). Set option :produce-proofs to true to get complete proofs. [2018-04-11 20:31:34,852 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-04-11 20:31:34,852 INFO L320 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-04-11 20:31:34,852 INFO L335 seRefinementStrategy]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2018-04-11 20:31:34,852 INFO L442 AbstractCegarLoop]: Interpolant automaton has 4 states [2018-04-11 20:31:34,853 INFO L132 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2018-04-11 20:31:34,853 INFO L133 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2018-04-11 20:31:34,853 INFO L87 Difference]: Start difference. First operand 53 states and 58 transitions. Second operand 4 states. [2018-04-11 20:31:34,889 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-04-11 20:31:34,889 INFO L93 Difference]: Finished difference Result 52 states and 57 transitions. [2018-04-11 20:31:34,889 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2018-04-11 20:31:34,889 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 14 [2018-04-11 20:31:34,889 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-04-11 20:31:34,890 INFO L225 Difference]: With dead ends: 52 [2018-04-11 20:31:34,890 INFO L226 Difference]: Without dead ends: 52 [2018-04-11 20:31:34,890 INFO L567 BasicCegarLoop]: 0 DeclaredPredicates, 4 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2018-04-11 20:31:34,890 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 52 states. [2018-04-11 20:31:34,893 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 52 to 52. [2018-04-11 20:31:34,893 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 52 states. [2018-04-11 20:31:34,894 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 52 states to 52 states and 57 transitions. [2018-04-11 20:31:34,894 INFO L78 Accepts]: Start accepts. Automaton has 52 states and 57 transitions. Word has length 14 [2018-04-11 20:31:34,894 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-04-11 20:31:34,894 INFO L459 AbstractCegarLoop]: Abstraction has 52 states and 57 transitions. [2018-04-11 20:31:34,894 INFO L460 AbstractCegarLoop]: Interpolant automaton has 4 states. [2018-04-11 20:31:34,894 INFO L276 IsEmpty]: Start isEmpty. Operand 52 states and 57 transitions. [2018-04-11 20:31:34,895 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 15 [2018-04-11 20:31:34,895 INFO L347 BasicCegarLoop]: Found error trace [2018-04-11 20:31:34,895 INFO L355 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-04-11 20:31:34,895 INFO L408 AbstractCegarLoop]: === Iteration 4 === [mainErr3RequiresViolation, mainErr1RequiresViolation, mainErr2RequiresViolation, mainErr4EnsuresViolationMEMORY_LEAK, mainErr0RequiresViolation, cstrspnErr7RequiresViolation, cstrspnErr5RequiresViolation, cstrspnErr1RequiresViolation, cstrspnErr0RequiresViolation, cstrspnErr6RequiresViolation, cstrspnErr8RequiresViolation, cstrspnErr2RequiresViolation, cstrspnErr4RequiresViolation, cstrspnErr3RequiresViolation, cstrspnErr9RequiresViolation]=== [2018-04-11 20:31:34,895 INFO L82 PathProgramCache]: Analyzing trace with hash -1844792116, now seen corresponding path program 1 times [2018-04-11 20:31:34,895 INFO L213 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-04-11 20:31:34,896 INFO L68 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-04-11 20:31:34,896 INFO L119 rtionOrderModulation]: Craig nested/tree interpolation forces the following order [2018-04-11 20:31:34,896 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-04-11 20:31:34,896 INFO L119 rtionOrderModulation]: Craig nested/tree interpolation forces the following order [2018-04-11 20:31:34,906 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-04-11 20:31:34,907 WARN L137 erpolLogProxyWrapper]: Using partial proofs (cut at CNF-level). Set option :produce-proofs to true to get complete proofs. [2018-04-11 20:31:34,956 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-04-11 20:31:34,956 INFO L320 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-04-11 20:31:34,956 INFO L335 seRefinementStrategy]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2018-04-11 20:31:34,957 INFO L442 AbstractCegarLoop]: Interpolant automaton has 5 states [2018-04-11 20:31:34,957 INFO L132 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2018-04-11 20:31:34,957 INFO L133 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2018-04-11 20:31:34,957 INFO L87 Difference]: Start difference. First operand 52 states and 57 transitions. Second operand 5 states. [2018-04-11 20:31:34,979 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-04-11 20:31:34,980 INFO L93 Difference]: Finished difference Result 51 states and 56 transitions. [2018-04-11 20:31:34,980 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2018-04-11 20:31:34,980 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 14 [2018-04-11 20:31:34,980 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-04-11 20:31:34,980 INFO L225 Difference]: With dead ends: 51 [2018-04-11 20:31:34,980 INFO L226 Difference]: Without dead ends: 51 [2018-04-11 20:31:34,981 INFO L567 BasicCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=14, Invalid=16, Unknown=0, NotChecked=0, Total=30 [2018-04-11 20:31:34,981 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 51 states. [2018-04-11 20:31:34,982 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 51 to 51. [2018-04-11 20:31:34,982 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 51 states. [2018-04-11 20:31:34,983 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 51 states to 51 states and 56 transitions. [2018-04-11 20:31:34,983 INFO L78 Accepts]: Start accepts. Automaton has 51 states and 56 transitions. Word has length 14 [2018-04-11 20:31:34,984 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-04-11 20:31:34,984 INFO L459 AbstractCegarLoop]: Abstraction has 51 states and 56 transitions. [2018-04-11 20:31:34,984 INFO L460 AbstractCegarLoop]: Interpolant automaton has 5 states. [2018-04-11 20:31:34,984 INFO L276 IsEmpty]: Start isEmpty. Operand 51 states and 56 transitions. [2018-04-11 20:31:34,984 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 19 [2018-04-11 20:31:34,984 INFO L347 BasicCegarLoop]: Found error trace [2018-04-11 20:31:34,985 INFO L355 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-04-11 20:31:34,985 INFO L408 AbstractCegarLoop]: === Iteration 5 === [mainErr3RequiresViolation, mainErr1RequiresViolation, mainErr2RequiresViolation, mainErr4EnsuresViolationMEMORY_LEAK, mainErr0RequiresViolation, cstrspnErr7RequiresViolation, cstrspnErr5RequiresViolation, cstrspnErr1RequiresViolation, cstrspnErr0RequiresViolation, cstrspnErr6RequiresViolation, cstrspnErr8RequiresViolation, cstrspnErr2RequiresViolation, cstrspnErr4RequiresViolation, cstrspnErr3RequiresViolation, cstrspnErr9RequiresViolation]=== [2018-04-11 20:31:34,985 INFO L82 PathProgramCache]: Analyzing trace with hash 1893487725, now seen corresponding path program 1 times [2018-04-11 20:31:34,985 INFO L213 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-04-11 20:31:34,985 INFO L68 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-04-11 20:31:34,986 INFO L119 rtionOrderModulation]: Craig nested/tree interpolation forces the following order [2018-04-11 20:31:34,986 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-04-11 20:31:34,986 INFO L119 rtionOrderModulation]: Craig nested/tree interpolation forces the following order [2018-04-11 20:31:34,995 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-04-11 20:31:34,996 WARN L137 erpolLogProxyWrapper]: Using partial proofs (cut at CNF-level). Set option :produce-proofs to true to get complete proofs. [2018-04-11 20:31:35,017 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-04-11 20:31:35,018 INFO L320 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-04-11 20:31:35,018 INFO L335 seRefinementStrategy]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2018-04-11 20:31:35,018 INFO L442 AbstractCegarLoop]: Interpolant automaton has 5 states [2018-04-11 20:31:35,018 INFO L132 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2018-04-11 20:31:35,018 INFO L133 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2018-04-11 20:31:35,018 INFO L87 Difference]: Start difference. First operand 51 states and 56 transitions. Second operand 5 states. [2018-04-11 20:31:35,073 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-04-11 20:31:35,073 INFO L93 Difference]: Finished difference Result 49 states and 54 transitions. [2018-04-11 20:31:35,073 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2018-04-11 20:31:35,073 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 18 [2018-04-11 20:31:35,074 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-04-11 20:31:35,074 INFO L225 Difference]: With dead ends: 49 [2018-04-11 20:31:35,074 INFO L226 Difference]: Without dead ends: 49 [2018-04-11 20:31:35,075 INFO L567 BasicCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2018-04-11 20:31:35,075 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 49 states. [2018-04-11 20:31:35,077 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 49 to 49. [2018-04-11 20:31:35,077 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 49 states. [2018-04-11 20:31:35,078 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 49 states to 49 states and 54 transitions. [2018-04-11 20:31:35,078 INFO L78 Accepts]: Start accepts. Automaton has 49 states and 54 transitions. Word has length 18 [2018-04-11 20:31:35,078 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-04-11 20:31:35,078 INFO L459 AbstractCegarLoop]: Abstraction has 49 states and 54 transitions. [2018-04-11 20:31:35,078 INFO L460 AbstractCegarLoop]: Interpolant automaton has 5 states. [2018-04-11 20:31:35,078 INFO L276 IsEmpty]: Start isEmpty. Operand 49 states and 54 transitions. [2018-04-11 20:31:35,079 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 19 [2018-04-11 20:31:35,079 INFO L347 BasicCegarLoop]: Found error trace [2018-04-11 20:31:35,079 INFO L355 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-04-11 20:31:35,079 INFO L408 AbstractCegarLoop]: === Iteration 6 === [mainErr3RequiresViolation, mainErr1RequiresViolation, mainErr2RequiresViolation, mainErr4EnsuresViolationMEMORY_LEAK, mainErr0RequiresViolation, cstrspnErr7RequiresViolation, cstrspnErr5RequiresViolation, cstrspnErr1RequiresViolation, cstrspnErr0RequiresViolation, cstrspnErr6RequiresViolation, cstrspnErr8RequiresViolation, cstrspnErr2RequiresViolation, cstrspnErr4RequiresViolation, cstrspnErr3RequiresViolation, cstrspnErr9RequiresViolation]=== [2018-04-11 20:31:35,079 INFO L82 PathProgramCache]: Analyzing trace with hash 1893487726, now seen corresponding path program 1 times [2018-04-11 20:31:35,079 INFO L213 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-04-11 20:31:35,079 INFO L68 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-04-11 20:31:35,080 INFO L119 rtionOrderModulation]: Craig nested/tree interpolation forces the following order [2018-04-11 20:31:35,080 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-04-11 20:31:35,080 INFO L119 rtionOrderModulation]: Craig nested/tree interpolation forces the following order [2018-04-11 20:31:35,089 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-04-11 20:31:35,090 WARN L137 erpolLogProxyWrapper]: Using partial proofs (cut at CNF-level). Set option :produce-proofs to true to get complete proofs. [2018-04-11 20:31:35,148 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-04-11 20:31:35,149 INFO L320 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-04-11 20:31:35,149 INFO L335 seRefinementStrategy]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2018-04-11 20:31:35,149 INFO L442 AbstractCegarLoop]: Interpolant automaton has 8 states [2018-04-11 20:31:35,149 INFO L132 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2018-04-11 20:31:35,149 INFO L133 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=41, Unknown=0, NotChecked=0, Total=56 [2018-04-11 20:31:35,149 INFO L87 Difference]: Start difference. First operand 49 states and 54 transitions. Second operand 8 states. [2018-04-11 20:31:35,236 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-04-11 20:31:35,236 INFO L93 Difference]: Finished difference Result 73 states and 82 transitions. [2018-04-11 20:31:35,236 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2018-04-11 20:31:35,236 INFO L78 Accepts]: Start accepts. Automaton has 8 states. Word has length 18 [2018-04-11 20:31:35,236 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-04-11 20:31:35,238 INFO L225 Difference]: With dead ends: 73 [2018-04-11 20:31:35,238 INFO L226 Difference]: Without dead ends: 73 [2018-04-11 20:31:35,238 INFO L567 BasicCegarLoop]: 0 DeclaredPredicates, 11 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 13 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=37, Invalid=95, Unknown=0, NotChecked=0, Total=132 [2018-04-11 20:31:35,238 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 73 states. [2018-04-11 20:31:35,240 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 73 to 53. [2018-04-11 20:31:35,240 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 53 states. [2018-04-11 20:31:35,241 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 53 states to 53 states and 59 transitions. [2018-04-11 20:31:35,241 INFO L78 Accepts]: Start accepts. Automaton has 53 states and 59 transitions. Word has length 18 [2018-04-11 20:31:35,241 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-04-11 20:31:35,241 INFO L459 AbstractCegarLoop]: Abstraction has 53 states and 59 transitions. [2018-04-11 20:31:35,241 INFO L460 AbstractCegarLoop]: Interpolant automaton has 8 states. [2018-04-11 20:31:35,241 INFO L276 IsEmpty]: Start isEmpty. Operand 53 states and 59 transitions. [2018-04-11 20:31:35,242 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 24 [2018-04-11 20:31:35,242 INFO L347 BasicCegarLoop]: Found error trace [2018-04-11 20:31:35,242 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] [2018-04-11 20:31:35,242 INFO L408 AbstractCegarLoop]: === Iteration 7 === [mainErr3RequiresViolation, mainErr1RequiresViolation, mainErr2RequiresViolation, mainErr4EnsuresViolationMEMORY_LEAK, mainErr0RequiresViolation, cstrspnErr7RequiresViolation, cstrspnErr5RequiresViolation, cstrspnErr1RequiresViolation, cstrspnErr0RequiresViolation, cstrspnErr6RequiresViolation, cstrspnErr8RequiresViolation, cstrspnErr2RequiresViolation, cstrspnErr4RequiresViolation, cstrspnErr3RequiresViolation, cstrspnErr9RequiresViolation]=== [2018-04-11 20:31:35,242 INFO L82 PathProgramCache]: Analyzing trace with hash -894404631, now seen corresponding path program 1 times [2018-04-11 20:31:35,242 INFO L213 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-04-11 20:31:35,242 INFO L68 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-04-11 20:31:35,242 INFO L119 rtionOrderModulation]: Craig nested/tree interpolation forces the following order [2018-04-11 20:31:35,243 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-04-11 20:31:35,243 INFO L119 rtionOrderModulation]: Craig nested/tree interpolation forces the following order [2018-04-11 20:31:35,250 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-04-11 20:31:35,251 WARN L137 erpolLogProxyWrapper]: Using partial proofs (cut at CNF-level). Set option :produce-proofs to true to get complete proofs. [2018-04-11 20:31:35,295 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-04-11 20:31:35,296 INFO L320 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-04-11 20:31:35,296 INFO L335 seRefinementStrategy]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2018-04-11 20:31:35,296 INFO L442 AbstractCegarLoop]: Interpolant automaton has 6 states [2018-04-11 20:31:35,296 INFO L132 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2018-04-11 20:31:35,296 INFO L133 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2018-04-11 20:31:35,296 INFO L87 Difference]: Start difference. First operand 53 states and 59 transitions. Second operand 6 states. [2018-04-11 20:31:35,349 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-04-11 20:31:35,350 INFO L93 Difference]: Finished difference Result 53 states and 59 transitions. [2018-04-11 20:31:35,350 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2018-04-11 20:31:35,350 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 23 [2018-04-11 20:31:35,350 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-04-11 20:31:35,350 INFO L225 Difference]: With dead ends: 53 [2018-04-11 20:31:35,350 INFO L226 Difference]: Without dead ends: 53 [2018-04-11 20:31:35,351 INFO L567 BasicCegarLoop]: 0 DeclaredPredicates, 7 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=19, Invalid=37, Unknown=0, NotChecked=0, Total=56 [2018-04-11 20:31:35,351 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 53 states. [2018-04-11 20:31:35,352 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 53 to 50. [2018-04-11 20:31:35,352 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 50 states. [2018-04-11 20:31:35,352 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 50 states to 50 states and 56 transitions. [2018-04-11 20:31:35,353 INFO L78 Accepts]: Start accepts. Automaton has 50 states and 56 transitions. Word has length 23 [2018-04-11 20:31:35,353 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-04-11 20:31:35,353 INFO L459 AbstractCegarLoop]: Abstraction has 50 states and 56 transitions. [2018-04-11 20:31:35,353 INFO L460 AbstractCegarLoop]: Interpolant automaton has 6 states. [2018-04-11 20:31:35,353 INFO L276 IsEmpty]: Start isEmpty. Operand 50 states and 56 transitions. [2018-04-11 20:31:35,353 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 24 [2018-04-11 20:31:35,353 INFO L347 BasicCegarLoop]: Found error trace [2018-04-11 20:31:35,353 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] [2018-04-11 20:31:35,353 INFO L408 AbstractCegarLoop]: === Iteration 8 === [mainErr3RequiresViolation, mainErr1RequiresViolation, mainErr2RequiresViolation, mainErr4EnsuresViolationMEMORY_LEAK, mainErr0RequiresViolation, cstrspnErr7RequiresViolation, cstrspnErr5RequiresViolation, cstrspnErr1RequiresViolation, cstrspnErr0RequiresViolation, cstrspnErr6RequiresViolation, cstrspnErr8RequiresViolation, cstrspnErr2RequiresViolation, cstrspnErr4RequiresViolation, cstrspnErr3RequiresViolation, cstrspnErr9RequiresViolation]=== [2018-04-11 20:31:35,354 INFO L82 PathProgramCache]: Analyzing trace with hash -894404630, now seen corresponding path program 1 times [2018-04-11 20:31:35,354 INFO L213 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-04-11 20:31:35,354 INFO L68 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-04-11 20:31:35,354 INFO L119 rtionOrderModulation]: Craig nested/tree interpolation forces the following order [2018-04-11 20:31:35,354 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-04-11 20:31:35,354 INFO L119 rtionOrderModulation]: Craig nested/tree interpolation forces the following order [2018-04-11 20:31:35,361 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-04-11 20:31:35,362 WARN L137 erpolLogProxyWrapper]: Using partial proofs (cut at CNF-level). Set option :produce-proofs to true to get complete proofs. [2018-04-11 20:31:35,437 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-04-11 20:31:35,437 INFO L320 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-04-11 20:31:35,437 INFO L335 seRefinementStrategy]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2018-04-11 20:31:35,438 INFO L442 AbstractCegarLoop]: Interpolant automaton has 9 states [2018-04-11 20:31:35,438 INFO L132 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2018-04-11 20:31:35,438 INFO L133 InterpolantAutomaton]: CoverageRelationStatistics Valid=18, Invalid=54, Unknown=0, NotChecked=0, Total=72 [2018-04-11 20:31:35,438 INFO L87 Difference]: Start difference. First operand 50 states and 56 transitions. Second operand 9 states. [2018-04-11 20:31:35,538 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-04-11 20:31:35,538 INFO L93 Difference]: Finished difference Result 67 states and 77 transitions. [2018-04-11 20:31:35,538 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2018-04-11 20:31:35,538 INFO L78 Accepts]: Start accepts. Automaton has 9 states. Word has length 23 [2018-04-11 20:31:35,539 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-04-11 20:31:35,539 INFO L225 Difference]: With dead ends: 67 [2018-04-11 20:31:35,539 INFO L226 Difference]: Without dead ends: 67 [2018-04-11 20:31:35,539 INFO L567 BasicCegarLoop]: 0 DeclaredPredicates, 11 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 17 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=34, Invalid=98, Unknown=0, NotChecked=0, Total=132 [2018-04-11 20:31:35,539 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 67 states. [2018-04-11 20:31:35,544 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 67 to 58. [2018-04-11 20:31:35,544 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 58 states. [2018-04-11 20:31:35,545 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 58 states to 58 states and 66 transitions. [2018-04-11 20:31:35,545 INFO L78 Accepts]: Start accepts. Automaton has 58 states and 66 transitions. Word has length 23 [2018-04-11 20:31:35,545 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-04-11 20:31:35,545 INFO L459 AbstractCegarLoop]: Abstraction has 58 states and 66 transitions. [2018-04-11 20:31:35,546 INFO L460 AbstractCegarLoop]: Interpolant automaton has 9 states. [2018-04-11 20:31:35,546 INFO L276 IsEmpty]: Start isEmpty. Operand 58 states and 66 transitions. [2018-04-11 20:31:35,546 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 29 [2018-04-11 20:31:35,546 INFO L347 BasicCegarLoop]: Found error trace [2018-04-11 20:31:35,546 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] [2018-04-11 20:31:35,546 INFO L408 AbstractCegarLoop]: === Iteration 9 === [mainErr3RequiresViolation, mainErr1RequiresViolation, mainErr2RequiresViolation, mainErr4EnsuresViolationMEMORY_LEAK, mainErr0RequiresViolation, cstrspnErr7RequiresViolation, cstrspnErr5RequiresViolation, cstrspnErr1RequiresViolation, cstrspnErr0RequiresViolation, cstrspnErr6RequiresViolation, cstrspnErr8RequiresViolation, cstrspnErr2RequiresViolation, cstrspnErr4RequiresViolation, cstrspnErr3RequiresViolation, cstrspnErr9RequiresViolation]=== [2018-04-11 20:31:35,547 INFO L82 PathProgramCache]: Analyzing trace with hash -1986095611, now seen corresponding path program 1 times [2018-04-11 20:31:35,549 INFO L213 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-04-11 20:31:35,549 INFO L68 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-04-11 20:31:35,550 INFO L119 rtionOrderModulation]: Craig nested/tree interpolation forces the following order [2018-04-11 20:31:35,550 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-04-11 20:31:35,550 INFO L119 rtionOrderModulation]: Craig nested/tree interpolation forces the following order [2018-04-11 20:31:35,563 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-04-11 20:31:35,564 WARN L137 erpolLogProxyWrapper]: Using partial proofs (cut at CNF-level). Set option :produce-proofs to true to get complete proofs. [2018-04-11 20:31:35,630 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-04-11 20:31:35,630 INFO L320 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-04-11 20:31:35,630 INFO L335 seRefinementStrategy]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2018-04-11 20:31:35,630 INFO L442 AbstractCegarLoop]: Interpolant automaton has 6 states [2018-04-11 20:31:35,630 INFO L132 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2018-04-11 20:31:35,631 INFO L133 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2018-04-11 20:31:35,631 INFO L87 Difference]: Start difference. First operand 58 states and 66 transitions. Second operand 6 states. [2018-04-11 20:31:35,730 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-04-11 20:31:35,730 INFO L93 Difference]: Finished difference Result 57 states and 65 transitions. [2018-04-11 20:31:35,730 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2018-04-11 20:31:35,731 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 28 [2018-04-11 20:31:35,731 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-04-11 20:31:35,731 INFO L225 Difference]: With dead ends: 57 [2018-04-11 20:31:35,732 INFO L226 Difference]: Without dead ends: 48 [2018-04-11 20:31:35,732 INFO L567 BasicCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=17, Invalid=39, Unknown=0, NotChecked=0, Total=56 [2018-04-11 20:31:35,732 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 48 states. [2018-04-11 20:31:35,734 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 48 to 48. [2018-04-11 20:31:35,734 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 48 states. [2018-04-11 20:31:35,735 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 48 states to 48 states and 54 transitions. [2018-04-11 20:31:35,735 INFO L78 Accepts]: Start accepts. Automaton has 48 states and 54 transitions. Word has length 28 [2018-04-11 20:31:35,735 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-04-11 20:31:35,735 INFO L459 AbstractCegarLoop]: Abstraction has 48 states and 54 transitions. [2018-04-11 20:31:35,736 INFO L460 AbstractCegarLoop]: Interpolant automaton has 6 states. [2018-04-11 20:31:35,736 INFO L276 IsEmpty]: Start isEmpty. Operand 48 states and 54 transitions. [2018-04-11 20:31:35,736 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 29 [2018-04-11 20:31:35,736 INFO L347 BasicCegarLoop]: Found error trace [2018-04-11 20:31:35,737 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] [2018-04-11 20:31:35,739 INFO L408 AbstractCegarLoop]: === Iteration 10 === [mainErr3RequiresViolation, mainErr1RequiresViolation, mainErr2RequiresViolation, mainErr4EnsuresViolationMEMORY_LEAK, mainErr0RequiresViolation, cstrspnErr7RequiresViolation, cstrspnErr5RequiresViolation, cstrspnErr1RequiresViolation, cstrspnErr0RequiresViolation, cstrspnErr6RequiresViolation, cstrspnErr8RequiresViolation, cstrspnErr2RequiresViolation, cstrspnErr4RequiresViolation, cstrspnErr3RequiresViolation, cstrspnErr9RequiresViolation]=== [2018-04-11 20:31:35,739 INFO L82 PathProgramCache]: Analyzing trace with hash 55851358, now seen corresponding path program 1 times [2018-04-11 20:31:35,739 INFO L213 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-04-11 20:31:35,739 INFO L68 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-04-11 20:31:35,740 INFO L119 rtionOrderModulation]: Craig nested/tree interpolation forces the following order [2018-04-11 20:31:35,740 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-04-11 20:31:35,740 INFO L119 rtionOrderModulation]: Craig nested/tree interpolation forces the following order [2018-04-11 20:31:35,748 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-04-11 20:31:35,749 WARN L137 erpolLogProxyWrapper]: Using partial proofs (cut at CNF-level). Set option :produce-proofs to true to get complete proofs. [2018-04-11 20:31:35,760 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 2 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-04-11 20:31:35,760 INFO L320 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-04-11 20:31:35,760 INFO L335 seRefinementStrategy]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2018-04-11 20:31:35,760 INFO L442 AbstractCegarLoop]: Interpolant automaton has 3 states [2018-04-11 20:31:35,761 INFO L132 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2018-04-11 20:31:35,761 INFO L133 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2018-04-11 20:31:35,761 INFO L87 Difference]: Start difference. First operand 48 states and 54 transitions. Second operand 3 states. [2018-04-11 20:31:35,765 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-04-11 20:31:35,765 INFO L93 Difference]: Finished difference Result 50 states and 56 transitions. [2018-04-11 20:31:35,766 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2018-04-11 20:31:35,766 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 28 [2018-04-11 20:31:35,766 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-04-11 20:31:35,767 INFO L225 Difference]: With dead ends: 50 [2018-04-11 20:31:35,767 INFO L226 Difference]: Without dead ends: 50 [2018-04-11 20:31:35,767 INFO L567 BasicCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2018-04-11 20:31:35,767 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 50 states. [2018-04-11 20:31:35,770 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 50 to 50. [2018-04-11 20:31:35,770 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 50 states. [2018-04-11 20:31:35,771 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 50 states to 50 states and 56 transitions. [2018-04-11 20:31:35,771 INFO L78 Accepts]: Start accepts. Automaton has 50 states and 56 transitions. Word has length 28 [2018-04-11 20:31:35,771 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-04-11 20:31:35,771 INFO L459 AbstractCegarLoop]: Abstraction has 50 states and 56 transitions. [2018-04-11 20:31:35,772 INFO L460 AbstractCegarLoop]: Interpolant automaton has 3 states. [2018-04-11 20:31:35,772 INFO L276 IsEmpty]: Start isEmpty. Operand 50 states and 56 transitions. [2018-04-11 20:31:35,772 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 31 [2018-04-11 20:31:35,772 INFO L347 BasicCegarLoop]: Found error trace [2018-04-11 20:31:35,772 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] [2018-04-11 20:31:35,772 INFO L408 AbstractCegarLoop]: === Iteration 11 === [mainErr3RequiresViolation, mainErr1RequiresViolation, mainErr2RequiresViolation, mainErr4EnsuresViolationMEMORY_LEAK, mainErr0RequiresViolation, cstrspnErr7RequiresViolation, cstrspnErr5RequiresViolation, cstrspnErr1RequiresViolation, cstrspnErr0RequiresViolation, cstrspnErr6RequiresViolation, cstrspnErr8RequiresViolation, cstrspnErr2RequiresViolation, cstrspnErr4RequiresViolation, cstrspnErr3RequiresViolation, cstrspnErr9RequiresViolation]=== [2018-04-11 20:31:35,773 INFO L82 PathProgramCache]: Analyzing trace with hash 1951988481, now seen corresponding path program 1 times [2018-04-11 20:31:35,773 INFO L213 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-04-11 20:31:35,773 INFO L68 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-04-11 20:31:35,775 INFO L119 rtionOrderModulation]: Craig nested/tree interpolation forces the following order [2018-04-11 20:31:35,775 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-04-11 20:31:35,775 INFO L119 rtionOrderModulation]: Craig nested/tree interpolation forces the following order [2018-04-11 20:31:35,790 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-04-11 20:31:35,791 WARN L137 erpolLogProxyWrapper]: Using partial proofs (cut at CNF-level). Set option :produce-proofs to true to get complete proofs. [2018-04-11 20:31:35,950 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2018-04-11 20:31:35,950 INFO L320 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-04-11 20:31:35,950 INFO L335 seRefinementStrategy]: Number of different interpolants: perfect sequences [11] imperfect sequences [] total 11 [2018-04-11 20:31:35,950 INFO L442 AbstractCegarLoop]: Interpolant automaton has 11 states [2018-04-11 20:31:35,951 INFO L132 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2018-04-11 20:31:35,951 INFO L133 InterpolantAutomaton]: CoverageRelationStatistics Valid=23, Invalid=87, Unknown=0, NotChecked=0, Total=110 [2018-04-11 20:31:35,951 INFO L87 Difference]: Start difference. First operand 50 states and 56 transitions. Second operand 11 states. [2018-04-11 20:31:36,087 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-04-11 20:31:36,088 INFO L93 Difference]: Finished difference Result 62 states and 68 transitions. [2018-04-11 20:31:36,088 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2018-04-11 20:31:36,088 INFO L78 Accepts]: Start accepts. Automaton has 11 states. Word has length 30 [2018-04-11 20:31:36,088 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-04-11 20:31:36,088 INFO L225 Difference]: With dead ends: 62 [2018-04-11 20:31:36,088 INFO L226 Difference]: Without dead ends: 50 [2018-04-11 20:31:36,089 INFO L567 BasicCegarLoop]: 0 DeclaredPredicates, 18 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 15 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 32 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=65, Invalid=207, Unknown=0, NotChecked=0, Total=272 [2018-04-11 20:31:36,089 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 50 states. [2018-04-11 20:31:36,090 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 50 to 50. [2018-04-11 20:31:36,090 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 50 states. [2018-04-11 20:31:36,090 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 50 states to 50 states and 55 transitions. [2018-04-11 20:31:36,090 INFO L78 Accepts]: Start accepts. Automaton has 50 states and 55 transitions. Word has length 30 [2018-04-11 20:31:36,091 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-04-11 20:31:36,091 INFO L459 AbstractCegarLoop]: Abstraction has 50 states and 55 transitions. [2018-04-11 20:31:36,091 INFO L460 AbstractCegarLoop]: Interpolant automaton has 11 states. [2018-04-11 20:31:36,091 INFO L276 IsEmpty]: Start isEmpty. Operand 50 states and 55 transitions. [2018-04-11 20:31:36,091 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 31 [2018-04-11 20:31:36,091 INFO L347 BasicCegarLoop]: Found error trace [2018-04-11 20:31:36,092 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] [2018-04-11 20:31:36,092 INFO L408 AbstractCegarLoop]: === Iteration 12 === [mainErr3RequiresViolation, mainErr1RequiresViolation, mainErr2RequiresViolation, mainErr4EnsuresViolationMEMORY_LEAK, mainErr0RequiresViolation, cstrspnErr7RequiresViolation, cstrspnErr5RequiresViolation, cstrspnErr1RequiresViolation, cstrspnErr0RequiresViolation, cstrspnErr6RequiresViolation, cstrspnErr8RequiresViolation, cstrspnErr2RequiresViolation, cstrspnErr4RequiresViolation, cstrspnErr3RequiresViolation, cstrspnErr9RequiresViolation]=== [2018-04-11 20:31:36,092 INFO L82 PathProgramCache]: Analyzing trace with hash 1817974975, now seen corresponding path program 1 times [2018-04-11 20:31:36,092 INFO L213 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-04-11 20:31:36,092 INFO L68 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-04-11 20:31:36,093 INFO L119 rtionOrderModulation]: Craig nested/tree interpolation forces the following order [2018-04-11 20:31:36,093 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-04-11 20:31:36,093 INFO L119 rtionOrderModulation]: Craig nested/tree interpolation forces the following order [2018-04-11 20:31:36,105 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-04-11 20:31:36,106 WARN L137 erpolLogProxyWrapper]: Using partial proofs (cut at CNF-level). Set option :produce-proofs to true to get complete proofs. [2018-04-11 20:31:36,207 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 2 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-04-11 20:31:36,207 INFO L320 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-04-11 20:31:36,208 INFO L335 seRefinementStrategy]: Number of different interpolants: perfect sequences [11] imperfect sequences [] total 11 [2018-04-11 20:31:36,208 INFO L442 AbstractCegarLoop]: Interpolant automaton has 11 states [2018-04-11 20:31:36,208 INFO L132 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2018-04-11 20:31:36,208 INFO L133 InterpolantAutomaton]: CoverageRelationStatistics Valid=21, Invalid=89, Unknown=0, NotChecked=0, Total=110 [2018-04-11 20:31:36,208 INFO L87 Difference]: Start difference. First operand 50 states and 55 transitions. Second operand 11 states. [2018-04-11 20:31:36,336 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-04-11 20:31:36,337 INFO L93 Difference]: Finished difference Result 77 states and 82 transitions. [2018-04-11 20:31:36,337 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2018-04-11 20:31:36,337 INFO L78 Accepts]: Start accepts. Automaton has 11 states. Word has length 30 [2018-04-11 20:31:36,337 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-04-11 20:31:36,337 INFO L225 Difference]: With dead ends: 77 [2018-04-11 20:31:36,338 INFO L226 Difference]: Without dead ends: 77 [2018-04-11 20:31:36,338 INFO L567 BasicCegarLoop]: 0 DeclaredPredicates, 18 GetRequests, 2 SyntacticMatches, 1 SemanticMatches, 15 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 28 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=61, Invalid=211, Unknown=0, NotChecked=0, Total=272 [2018-04-11 20:31:36,338 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 77 states. [2018-04-11 20:31:36,340 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 77 to 75. [2018-04-11 20:31:36,341 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 75 states. [2018-04-11 20:31:36,341 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 75 states to 75 states and 82 transitions. [2018-04-11 20:31:36,341 INFO L78 Accepts]: Start accepts. Automaton has 75 states and 82 transitions. Word has length 30 [2018-04-11 20:31:36,342 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-04-11 20:31:36,342 INFO L459 AbstractCegarLoop]: Abstraction has 75 states and 82 transitions. [2018-04-11 20:31:36,342 INFO L460 AbstractCegarLoop]: Interpolant automaton has 11 states. [2018-04-11 20:31:36,342 INFO L276 IsEmpty]: Start isEmpty. Operand 75 states and 82 transitions. [2018-04-11 20:31:36,343 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 31 [2018-04-11 20:31:36,343 INFO L347 BasicCegarLoop]: Found error trace [2018-04-11 20:31:36,343 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] [2018-04-11 20:31:36,343 INFO L408 AbstractCegarLoop]: === Iteration 13 === [mainErr3RequiresViolation, mainErr1RequiresViolation, mainErr2RequiresViolation, mainErr4EnsuresViolationMEMORY_LEAK, mainErr0RequiresViolation, cstrspnErr7RequiresViolation, cstrspnErr5RequiresViolation, cstrspnErr1RequiresViolation, cstrspnErr0RequiresViolation, cstrspnErr6RequiresViolation, cstrspnErr8RequiresViolation, cstrspnErr2RequiresViolation, cstrspnErr4RequiresViolation, cstrspnErr3RequiresViolation, cstrspnErr9RequiresViolation]=== [2018-04-11 20:31:36,343 INFO L82 PathProgramCache]: Analyzing trace with hash 12536641, now seen corresponding path program 1 times [2018-04-11 20:31:36,343 INFO L213 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-04-11 20:31:36,343 INFO L68 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-04-11 20:31:36,344 INFO L119 rtionOrderModulation]: Craig nested/tree interpolation forces the following order [2018-04-11 20:31:36,344 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-04-11 20:31:36,344 INFO L119 rtionOrderModulation]: Craig nested/tree interpolation forces the following order [2018-04-11 20:31:36,368 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-04-11 20:31:36,368 WARN L137 erpolLogProxyWrapper]: Using partial proofs (cut at CNF-level). Set option :produce-proofs to true to get complete proofs. [2018-04-11 20:31:36,547 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-04-11 20:31:36,547 INFO L308 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2018-04-11 20:31:36,547 INFO L213 ckRefinementStrategy]: Switched to mode Z3_FP No working directory specified, using /home/ultimate/work/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 2 with z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 2 with z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:12000 [2018-04-11 20:31:36,553 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-04-11 20:31:36,582 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-04-11 20:31:36,589 INFO L270 TraceCheckSpWp]: Computing forward predicates... [2018-04-11 20:31:36,631 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 [2018-04-11 20:31:36,643 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 [2018-04-11 20:31:36,644 INFO L267 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 1 xjuncts. [2018-04-11 20:31:36,645 INFO L267 ElimStorePlain]: Start of recursive call 2: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-04-11 20:31:36,649 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. [2018-04-11 20:31:36,649 INFO L202 ElimStorePlain]: Needed 3 recursive calls to eliminate 2 variables, input treesize:25, output treesize:21 [2018-04-11 20:31:36,768 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 18 treesize of output 14 [2018-04-11 20:31:36,776 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 0 new quantified variables, introduced 1 case distinctions, treesize of input 14 treesize of output 11 [2018-04-11 20:31:36,776 INFO L267 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 2 xjuncts. [2018-04-11 20:31:36,780 INFO L267 ElimStorePlain]: Start of recursive call 2: 1 dim-1 vars, End of recursive call: and 2 xjuncts. [2018-04-11 20:31:36,792 INFO L267 ElimStorePlain]: Start of recursive call 1: 2 dim-0 vars, 1 dim-2 vars, End of recursive call: and 2 xjuncts. [2018-04-11 20:31:36,793 INFO L202 ElimStorePlain]: Needed 3 recursive calls to eliminate 3 variables, input treesize:34, output treesize:33 [2018-04-11 20:31:36,890 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-04-11 20:31:36,920 INFO L320 seRefinementStrategy]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2018-04-11 20:31:36,920 INFO L335 seRefinementStrategy]: Number of different interpolants: perfect sequences [] imperfect sequences [12, 10] total 19 [2018-04-11 20:31:36,921 INFO L442 AbstractCegarLoop]: Interpolant automaton has 20 states [2018-04-11 20:31:36,921 INFO L132 InterpolantAutomaton]: Constructing interpolant automaton starting with 20 interpolants. [2018-04-11 20:31:36,921 INFO L133 InterpolantAutomaton]: CoverageRelationStatistics Valid=47, Invalid=333, Unknown=0, NotChecked=0, Total=380 [2018-04-11 20:31:36,921 INFO L87 Difference]: Start difference. First operand 75 states and 82 transitions. Second operand 20 states. [2018-04-11 20:31:38,140 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-04-11 20:31:38,140 INFO L93 Difference]: Finished difference Result 103 states and 112 transitions. [2018-04-11 20:31:38,142 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2018-04-11 20:31:38,142 INFO L78 Accepts]: Start accepts. Automaton has 20 states. Word has length 30 [2018-04-11 20:31:38,142 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-04-11 20:31:38,143 INFO L225 Difference]: With dead ends: 103 [2018-04-11 20:31:38,143 INFO L226 Difference]: Without dead ends: 103 [2018-04-11 20:31:38,144 INFO L567 BasicCegarLoop]: 0 DeclaredPredicates, 52 GetRequests, 24 SyntacticMatches, 0 SemanticMatches, 28 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 94 ImplicationChecksByTransitivity, 1.2s TimeCoverageRelationStatistics Valid=149, Invalid=721, Unknown=0, NotChecked=0, Total=870 [2018-04-11 20:31:38,144 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 103 states. [2018-04-11 20:31:38,147 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 103 to 82. [2018-04-11 20:31:38,147 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 82 states. [2018-04-11 20:31:38,148 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 82 states to 82 states and 91 transitions. [2018-04-11 20:31:38,148 INFO L78 Accepts]: Start accepts. Automaton has 82 states and 91 transitions. Word has length 30 [2018-04-11 20:31:38,148 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-04-11 20:31:38,148 INFO L459 AbstractCegarLoop]: Abstraction has 82 states and 91 transitions. [2018-04-11 20:31:38,148 INFO L460 AbstractCegarLoop]: Interpolant automaton has 20 states. [2018-04-11 20:31:38,148 INFO L276 IsEmpty]: Start isEmpty. Operand 82 states and 91 transitions. [2018-04-11 20:31:38,149 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 32 [2018-04-11 20:31:38,149 INFO L347 BasicCegarLoop]: Found error trace [2018-04-11 20:31:38,149 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] [2018-04-11 20:31:38,149 INFO L408 AbstractCegarLoop]: === Iteration 14 === [mainErr3RequiresViolation, mainErr1RequiresViolation, mainErr2RequiresViolation, mainErr4EnsuresViolationMEMORY_LEAK, mainErr0RequiresViolation, cstrspnErr7RequiresViolation, cstrspnErr5RequiresViolation, cstrspnErr1RequiresViolation, cstrspnErr0RequiresViolation, cstrspnErr6RequiresViolation, cstrspnErr8RequiresViolation, cstrspnErr2RequiresViolation, cstrspnErr4RequiresViolation, cstrspnErr3RequiresViolation, cstrspnErr9RequiresViolation]=== [2018-04-11 20:31:38,149 INFO L82 PathProgramCache]: Analyzing trace with hash 1821776862, now seen corresponding path program 1 times [2018-04-11 20:31:38,149 INFO L213 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-04-11 20:31:38,149 INFO L68 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-04-11 20:31:38,150 INFO L119 rtionOrderModulation]: Craig nested/tree interpolation forces the following order [2018-04-11 20:31:38,150 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-04-11 20:31:38,150 INFO L119 rtionOrderModulation]: Craig nested/tree interpolation forces the following order [2018-04-11 20:31:38,158 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-04-11 20:31:38,158 WARN L137 erpolLogProxyWrapper]: Using partial proofs (cut at CNF-level). Set option :produce-proofs to true to get complete proofs. [2018-04-11 20:31:38,216 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 2 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-04-11 20:31:38,216 INFO L320 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-04-11 20:31:38,216 INFO L335 seRefinementStrategy]: Number of different interpolants: perfect sequences [10] imperfect sequences [] total 10 [2018-04-11 20:31:38,217 INFO L442 AbstractCegarLoop]: Interpolant automaton has 10 states [2018-04-11 20:31:38,217 INFO L132 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2018-04-11 20:31:38,217 INFO L133 InterpolantAutomaton]: CoverageRelationStatistics Valid=19, Invalid=71, Unknown=0, NotChecked=0, Total=90 [2018-04-11 20:31:38,217 INFO L87 Difference]: Start difference. First operand 82 states and 91 transitions. Second operand 10 states. [2018-04-11 20:31:38,351 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-04-11 20:31:38,352 INFO L93 Difference]: Finished difference Result 82 states and 87 transitions. [2018-04-11 20:31:38,352 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2018-04-11 20:31:38,352 INFO L78 Accepts]: Start accepts. Automaton has 10 states. Word has length 31 [2018-04-11 20:31:38,352 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-04-11 20:31:38,352 INFO L225 Difference]: With dead ends: 82 [2018-04-11 20:31:38,352 INFO L226 Difference]: Without dead ends: 59 [2018-04-11 20:31:38,352 INFO L567 BasicCegarLoop]: 0 DeclaredPredicates, 19 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 17 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 35 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=79, Invalid=263, Unknown=0, NotChecked=0, Total=342 [2018-04-11 20:31:38,353 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 59 states. [2018-04-11 20:31:38,354 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 59 to 57. [2018-04-11 20:31:38,354 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 57 states. [2018-04-11 20:31:38,354 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 57 states to 57 states and 61 transitions. [2018-04-11 20:31:38,354 INFO L78 Accepts]: Start accepts. Automaton has 57 states and 61 transitions. Word has length 31 [2018-04-11 20:31:38,354 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-04-11 20:31:38,354 INFO L459 AbstractCegarLoop]: Abstraction has 57 states and 61 transitions. [2018-04-11 20:31:38,354 INFO L460 AbstractCegarLoop]: Interpolant automaton has 10 states. [2018-04-11 20:31:38,354 INFO L276 IsEmpty]: Start isEmpty. Operand 57 states and 61 transitions. [2018-04-11 20:31:38,355 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 34 [2018-04-11 20:31:38,355 INFO L347 BasicCegarLoop]: Found error trace [2018-04-11 20:31:38,355 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] [2018-04-11 20:31:38,355 INFO L408 AbstractCegarLoop]: === Iteration 15 === [mainErr3RequiresViolation, mainErr1RequiresViolation, mainErr2RequiresViolation, mainErr4EnsuresViolationMEMORY_LEAK, mainErr0RequiresViolation, cstrspnErr7RequiresViolation, cstrspnErr5RequiresViolation, cstrspnErr1RequiresViolation, cstrspnErr0RequiresViolation, cstrspnErr6RequiresViolation, cstrspnErr8RequiresViolation, cstrspnErr2RequiresViolation, cstrspnErr4RequiresViolation, cstrspnErr3RequiresViolation, cstrspnErr9RequiresViolation]=== [2018-04-11 20:31:38,355 INFO L82 PathProgramCache]: Analyzing trace with hash -217317095, now seen corresponding path program 1 times [2018-04-11 20:31:38,355 INFO L213 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-04-11 20:31:38,355 INFO L68 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-04-11 20:31:38,356 INFO L119 rtionOrderModulation]: Craig nested/tree interpolation forces the following order [2018-04-11 20:31:38,356 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-04-11 20:31:38,356 INFO L119 rtionOrderModulation]: Craig nested/tree interpolation forces the following order [2018-04-11 20:31:38,362 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-04-11 20:31:38,363 WARN L137 erpolLogProxyWrapper]: Using partial proofs (cut at CNF-level). Set option :produce-proofs to true to get complete proofs. [2018-04-11 20:31:38,540 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-04-11 20:31:38,540 INFO L308 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2018-04-11 20:31:38,540 INFO L213 ckRefinementStrategy]: Switched to mode Z3_FP No working directory specified, using /home/ultimate/work/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 3 with z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 3 with z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:12000 [2018-04-11 20:31:38,546 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-04-11 20:31:38,560 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-04-11 20:31:38,562 INFO L270 TraceCheckSpWp]: Computing forward predicates... [2018-04-11 20:31:38,566 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 6 treesize of output 5 [2018-04-11 20:31:38,567 INFO L267 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2018-04-11 20:31:38,569 INFO L267 ElimStorePlain]: Start of recursive call 1: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-04-11 20:31:38,569 INFO L202 ElimStorePlain]: Needed 2 recursive calls to eliminate 1 variables, input treesize:10, output treesize:9 [2018-04-11 20:31:38,610 INFO L700 Elim1Store]: detected not equals via solver [2018-04-11 20:31:38,611 INFO L700 Elim1Store]: detected not equals via solver [2018-04-11 20:31:38,612 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 [2018-04-11 20:31:38,612 INFO L267 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2018-04-11 20:31:38,614 INFO L267 ElimStorePlain]: Start of recursive call 1: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-04-11 20:31:38,614 INFO L202 ElimStorePlain]: Needed 2 recursive calls to eliminate 1 variables, input treesize:14, output treesize:8 [2018-04-11 20:31:38,646 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 14 treesize of output 11 [2018-04-11 20:31:38,648 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 [2018-04-11 20:31:38,648 INFO L267 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 1 xjuncts. [2018-04-11 20:31:38,649 INFO L267 ElimStorePlain]: Start of recursive call 2: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-04-11 20:31:38,654 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. [2018-04-11 20:31:38,654 INFO L202 ElimStorePlain]: Needed 3 recursive calls to eliminate 2 variables, input treesize:29, output treesize:25 [2018-04-11 20:31:38,678 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 1 disjoint index pairs (out of 1 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 25 treesize of output 26 [2018-04-11 20:31:38,680 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 [2018-04-11 20:31:38,680 INFO L267 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 1 xjuncts. [2018-04-11 20:31:38,684 INFO L267 ElimStorePlain]: Start of recursive call 2: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-04-11 20:31:38,690 INFO L267 ElimStorePlain]: Start of recursive call 1: 4 dim-0 vars, 1 dim-2 vars, End of recursive call: 4 dim-0 vars, and 1 xjuncts. [2018-04-11 20:31:38,690 INFO L202 ElimStorePlain]: Needed 3 recursive calls to eliminate 5 variables, input treesize:39, output treesize:35 [2018-04-11 20:31:41,615 WARN L148 SmtUtils]: Spent 474ms on a formula simplification that was a NOOP. DAG size: 46 [2018-04-11 20:31:41,695 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 3 select indices, 3 select index equivalence classes, 1 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 2 case distinctions, treesize of input 43 treesize of output 53 [2018-04-11 20:31:41,700 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 45 treesize of output 38 [2018-04-11 20:31:41,700 INFO L267 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 1 xjuncts. [2018-04-11 20:31:41,765 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 4 select indices, 4 select index equivalence classes, 3 disjoint index pairs (out of 6 index pairs), introduced 0 new quantified variables, introduced 3 case distinctions, treesize of input 33 treesize of output 49 [2018-04-11 20:31:41,766 INFO L267 ElimStorePlain]: Start of recursive call 4: End of recursive call: and 4 xjuncts. [2018-04-11 20:31:41,830 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 34 treesize of output 32 [2018-04-11 20:31:41,831 INFO L267 ElimStorePlain]: Start of recursive call 5: End of recursive call: and 2 xjuncts. [2018-04-11 20:31:41,882 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 28 treesize of output 20 [2018-04-11 20:31:41,882 INFO L267 ElimStorePlain]: Start of recursive call 6: End of recursive call: and 1 xjuncts. [2018-04-11 20:31:41,884 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 24 treesize of output 16 [2018-04-11 20:31:41,884 INFO L267 ElimStorePlain]: Start of recursive call 7: End of recursive call: and 1 xjuncts. [2018-04-11 20:31:41,933 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 37 treesize of output 29 [2018-04-11 20:31:41,933 INFO L267 ElimStorePlain]: Start of recursive call 8: End of recursive call: and 1 xjuncts. [2018-04-11 20:31:41,987 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 3 select indices, 3 select index equivalence classes, 2 disjoint index pairs (out of 3 index pairs), introduced 0 new quantified variables, introduced 2 case distinctions, treesize of input 37 treesize of output 43 [2018-04-11 20:31:41,987 INFO L267 ElimStorePlain]: Start of recursive call 9: End of recursive call: and 4 xjuncts. [2018-04-11 20:31:42,053 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 0 new quantified variables, introduced 1 case distinctions, treesize of input 29 treesize of output 27 [2018-04-11 20:31:42,054 INFO L267 ElimStorePlain]: Start of recursive call 10: End of recursive call: and 2 xjuncts. [2018-04-11 20:31:42,120 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 34 treesize of output 26 [2018-04-11 20:31:42,120 INFO L267 ElimStorePlain]: Start of recursive call 11: End of recursive call: and 1 xjuncts. [2018-04-11 20:31:42,122 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 31 treesize of output 23 [2018-04-11 20:31:42,122 INFO L267 ElimStorePlain]: Start of recursive call 12: End of recursive call: and 1 xjuncts. [2018-04-11 20:31:42,123 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 35 treesize of output 27 [2018-04-11 20:31:42,124 INFO L267 ElimStorePlain]: Start of recursive call 13: End of recursive call: and 1 xjuncts. [2018-04-11 20:31:42,162 INFO L267 ElimStorePlain]: Start of recursive call 2: 8 dim-1 vars, End of recursive call: and 7 xjuncts. [2018-04-11 20:31:42,203 INFO L267 ElimStorePlain]: Start of recursive call 1: 7 dim-0 vars, 1 dim-2 vars, End of recursive call: and 3 xjuncts. [2018-04-11 20:31:42,204 INFO L202 ElimStorePlain]: Needed 13 recursive calls to eliminate 8 variables, input treesize:63, output treesize:66 [2018-04-11 20:31:42,264 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-04-11 20:31:42,281 INFO L320 seRefinementStrategy]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2018-04-11 20:31:42,281 INFO L335 seRefinementStrategy]: Number of different interpolants: perfect sequences [] imperfect sequences [12, 19] total 28 [2018-04-11 20:31:42,281 INFO L442 AbstractCegarLoop]: Interpolant automaton has 29 states [2018-04-11 20:31:42,281 INFO L132 InterpolantAutomaton]: Constructing interpolant automaton starting with 29 interpolants. [2018-04-11 20:31:42,282 INFO L133 InterpolantAutomaton]: CoverageRelationStatistics Valid=81, Invalid=731, Unknown=0, NotChecked=0, Total=812 [2018-04-11 20:31:42,282 INFO L87 Difference]: Start difference. First operand 57 states and 61 transitions. Second operand 29 states. [2018-04-11 20:31:44,429 WARN L151 SmtUtils]: Spent 1537ms on a formula simplification. DAG size of input: 71 DAG size of output 62 [2018-04-11 20:31:44,966 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-04-11 20:31:44,966 INFO L93 Difference]: Finished difference Result 124 states and 135 transitions. [2018-04-11 20:31:44,966 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 22 states. [2018-04-11 20:31:44,966 INFO L78 Accepts]: Start accepts. Automaton has 29 states. Word has length 33 [2018-04-11 20:31:44,966 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-04-11 20:31:44,966 INFO L225 Difference]: With dead ends: 124 [2018-04-11 20:31:44,967 INFO L226 Difference]: Without dead ends: 124 [2018-04-11 20:31:44,967 INFO L567 BasicCegarLoop]: 0 DeclaredPredicates, 63 GetRequests, 18 SyntacticMatches, 0 SemanticMatches, 45 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 423 ImplicationChecksByTransitivity, 5.4s TimeCoverageRelationStatistics Valid=331, Invalid=1831, Unknown=0, NotChecked=0, Total=2162 [2018-04-11 20:31:44,967 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 124 states. [2018-04-11 20:31:44,968 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 124 to 87. [2018-04-11 20:31:44,969 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 87 states. [2018-04-11 20:31:44,969 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 87 states to 87 states and 98 transitions. [2018-04-11 20:31:44,969 INFO L78 Accepts]: Start accepts. Automaton has 87 states and 98 transitions. Word has length 33 [2018-04-11 20:31:44,969 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-04-11 20:31:44,969 INFO L459 AbstractCegarLoop]: Abstraction has 87 states and 98 transitions. [2018-04-11 20:31:44,969 INFO L460 AbstractCegarLoop]: Interpolant automaton has 29 states. [2018-04-11 20:31:44,969 INFO L276 IsEmpty]: Start isEmpty. Operand 87 states and 98 transitions. [2018-04-11 20:31:44,970 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 38 [2018-04-11 20:31:44,970 INFO L347 BasicCegarLoop]: Found error trace [2018-04-11 20:31:44,970 INFO L355 BasicCegarLoop]: trace histogram [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] [2018-04-11 20:31:44,970 INFO L408 AbstractCegarLoop]: === Iteration 16 === [mainErr3RequiresViolation, mainErr1RequiresViolation, mainErr2RequiresViolation, mainErr4EnsuresViolationMEMORY_LEAK, mainErr0RequiresViolation, cstrspnErr7RequiresViolation, cstrspnErr5RequiresViolation, cstrspnErr1RequiresViolation, cstrspnErr0RequiresViolation, cstrspnErr6RequiresViolation, cstrspnErr8RequiresViolation, cstrspnErr2RequiresViolation, cstrspnErr4RequiresViolation, cstrspnErr3RequiresViolation, cstrspnErr9RequiresViolation]=== [2018-04-11 20:31:44,970 INFO L82 PathProgramCache]: Analyzing trace with hash -670234678, now seen corresponding path program 2 times [2018-04-11 20:31:44,970 INFO L213 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-04-11 20:31:44,970 INFO L68 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-04-11 20:31:44,971 INFO L119 rtionOrderModulation]: Craig nested/tree interpolation forces the following order [2018-04-11 20:31:44,971 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-04-11 20:31:44,971 INFO L119 rtionOrderModulation]: Craig nested/tree interpolation forces the following order [2018-04-11 20:31:44,982 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-04-11 20:31:44,982 WARN L137 erpolLogProxyWrapper]: Using partial proofs (cut at CNF-level). Set option :produce-proofs to true to get complete proofs. [2018-04-11 20:31:45,247 INFO L134 CoverageAnalysis]: Checked inductivity of 11 backedges. 0 proven. 11 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-04-11 20:31:45,247 INFO L308 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2018-04-11 20:31:45,290 INFO L213 ckRefinementStrategy]: Switched to mode Z3_FP No working directory specified, using /home/ultimate/work/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 4 with z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 4 with z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:12000 [2018-04-11 20:31:45,296 INFO L103 rtionOrderModulation]: Keeping assertion order OUTSIDE_LOOP_FIRST1 [2018-04-11 20:31:45,310 INFO L242 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2018-04-11 20:31:45,310 INFO L243 tOrderPrioritization]: Conjunction of SSA is unsat [2018-04-11 20:31:45,316 INFO L270 TraceCheckSpWp]: Computing forward predicates... [2018-04-11 20:31:45,319 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 6 treesize of output 5 [2018-04-11 20:31:45,320 INFO L267 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2018-04-11 20:31:45,322 INFO L267 ElimStorePlain]: Start of recursive call 1: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-04-11 20:31:45,322 INFO L202 ElimStorePlain]: Needed 2 recursive calls to eliminate 1 variables, input treesize:10, output treesize:9 [2018-04-11 20:31:45,344 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 16 treesize of output 13 [2018-04-11 20:31:45,351 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 13 treesize of output 12 [2018-04-11 20:31:45,352 INFO L267 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 1 xjuncts. [2018-04-11 20:31:45,353 INFO L267 ElimStorePlain]: Start of recursive call 2: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-04-11 20:31:45,356 INFO L267 ElimStorePlain]: Start of recursive call 1: 1 dim-2 vars, End of recursive call: and 1 xjuncts. [2018-04-11 20:31:45,356 INFO L202 ElimStorePlain]: Needed 3 recursive calls to eliminate 1 variables, input treesize:23, output treesize:19 [2018-04-11 20:31:45,463 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 [2018-04-11 20:31:45,469 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 [2018-04-11 20:31:45,469 INFO L267 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 2 xjuncts. [2018-04-11 20:31:45,473 INFO L267 ElimStorePlain]: Start of recursive call 2: 1 dim-1 vars, End of recursive call: and 2 xjuncts. [2018-04-11 20:31:45,479 INFO L267 ElimStorePlain]: Start of recursive call 1: 1 dim-0 vars, 1 dim-2 vars, End of recursive call: and 3 xjuncts. [2018-04-11 20:31:45,480 INFO L202 ElimStorePlain]: Needed 3 recursive calls to eliminate 2 variables, input treesize:31, output treesize:33 [2018-04-11 20:31:45,587 INFO L134 CoverageAnalysis]: Checked inductivity of 11 backedges. 2 proven. 9 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-04-11 20:31:45,605 INFO L320 seRefinementStrategy]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2018-04-11 20:31:45,605 INFO L335 seRefinementStrategy]: Number of different interpolants: perfect sequences [] imperfect sequences [12, 13] total 23 [2018-04-11 20:31:45,605 INFO L442 AbstractCegarLoop]: Interpolant automaton has 24 states [2018-04-11 20:31:45,605 INFO L132 InterpolantAutomaton]: Constructing interpolant automaton starting with 24 interpolants. [2018-04-11 20:31:45,605 INFO L133 InterpolantAutomaton]: CoverageRelationStatistics Valid=62, Invalid=490, Unknown=0, NotChecked=0, Total=552 [2018-04-11 20:31:45,606 INFO L87 Difference]: Start difference. First operand 87 states and 98 transitions. Second operand 24 states. [2018-04-11 20:31:46,264 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-04-11 20:31:46,264 INFO L93 Difference]: Finished difference Result 108 states and 115 transitions. [2018-04-11 20:31:46,265 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 16 states. [2018-04-11 20:31:46,265 INFO L78 Accepts]: Start accepts. Automaton has 24 states. Word has length 37 [2018-04-11 20:31:46,265 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-04-11 20:31:46,265 INFO L225 Difference]: With dead ends: 108 [2018-04-11 20:31:46,265 INFO L226 Difference]: Without dead ends: 106 [2018-04-11 20:31:46,266 INFO L567 BasicCegarLoop]: 0 DeclaredPredicates, 62 GetRequests, 26 SyntacticMatches, 1 SemanticMatches, 35 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 134 ImplicationChecksByTransitivity, 0.8s TimeCoverageRelationStatistics Valid=218, Invalid=1114, Unknown=0, NotChecked=0, Total=1332 [2018-04-11 20:31:46,266 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 106 states. [2018-04-11 20:31:46,267 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 106 to 52. [2018-04-11 20:31:46,267 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 52 states. [2018-04-11 20:31:46,267 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 52 states to 52 states and 54 transitions. [2018-04-11 20:31:46,267 INFO L78 Accepts]: Start accepts. Automaton has 52 states and 54 transitions. Word has length 37 [2018-04-11 20:31:46,267 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-04-11 20:31:46,267 INFO L459 AbstractCegarLoop]: Abstraction has 52 states and 54 transitions. [2018-04-11 20:31:46,267 INFO L460 AbstractCegarLoop]: Interpolant automaton has 24 states. [2018-04-11 20:31:46,267 INFO L276 IsEmpty]: Start isEmpty. Operand 52 states and 54 transitions. [2018-04-11 20:31:46,268 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 49 [2018-04-11 20:31:46,268 INFO L347 BasicCegarLoop]: Found error trace [2018-04-11 20:31:46,268 INFO L355 BasicCegarLoop]: trace histogram [3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-04-11 20:31:46,268 INFO L408 AbstractCegarLoop]: === Iteration 17 === [mainErr3RequiresViolation, mainErr1RequiresViolation, mainErr2RequiresViolation, mainErr4EnsuresViolationMEMORY_LEAK, mainErr0RequiresViolation, cstrspnErr7RequiresViolation, cstrspnErr5RequiresViolation, cstrspnErr1RequiresViolation, cstrspnErr0RequiresViolation, cstrspnErr6RequiresViolation, cstrspnErr8RequiresViolation, cstrspnErr2RequiresViolation, cstrspnErr4RequiresViolation, cstrspnErr3RequiresViolation, cstrspnErr9RequiresViolation]=== [2018-04-11 20:31:46,269 INFO L82 PathProgramCache]: Analyzing trace with hash 606683470, now seen corresponding path program 2 times [2018-04-11 20:31:46,269 INFO L213 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-04-11 20:31:46,269 INFO L68 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-04-11 20:31:46,270 INFO L119 rtionOrderModulation]: Craig nested/tree interpolation forces the following order [2018-04-11 20:31:46,270 INFO L101 rtionOrderModulation]: Changing assertion order to NOT_INCREMENTALLY [2018-04-11 20:31:46,270 INFO L119 rtionOrderModulation]: Craig nested/tree interpolation forces the following order [2018-04-11 20:31:46,285 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-04-11 20:31:46,285 WARN L137 erpolLogProxyWrapper]: Using partial proofs (cut at CNF-level). Set option :produce-proofs to true to get complete proofs. [2018-04-11 20:31:46,541 INFO L134 CoverageAnalysis]: Checked inductivity of 19 backedges. 0 proven. 19 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-04-11 20:31:46,542 INFO L308 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2018-04-11 20:31:46,542 INFO L213 ckRefinementStrategy]: Switched to mode Z3_FP No working directory specified, using /home/ultimate/work/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 5 with z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 5 with z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:12000 [2018-04-11 20:31:46,547 INFO L103 rtionOrderModulation]: Keeping assertion order OUTSIDE_LOOP_FIRST1 [2018-04-11 20:31:46,568 INFO L242 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2018-04-11 20:31:46,569 INFO L243 tOrderPrioritization]: Conjunction of SSA is unsat [2018-04-11 20:31:46,572 INFO L270 TraceCheckSpWp]: Computing forward predicates... [2018-04-11 20:31:46,575 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 6 treesize of output 5 [2018-04-11 20:31:46,575 INFO L267 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2018-04-11 20:31:46,602 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 6 treesize of output 5 [2018-04-11 20:31:46,603 INFO L267 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 1 xjuncts. [2018-04-11 20:31:46,607 INFO L267 ElimStorePlain]: Start of recursive call 1: 2 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-04-11 20:31:46,607 INFO L202 ElimStorePlain]: Needed 3 recursive calls to eliminate 2 variables, input treesize:16, output treesize:14 [2018-04-11 20:31:46,645 INFO L700 Elim1Store]: detected not equals via solver [2018-04-11 20:31:46,646 INFO L700 Elim1Store]: detected not equals via solver [2018-04-11 20:31:46,647 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 [2018-04-11 20:31:46,647 INFO L267 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2018-04-11 20:31:46,656 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 [2018-04-11 20:31:46,656 INFO L267 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 1 xjuncts. [2018-04-11 20:31:46,661 INFO L267 ElimStorePlain]: Start of recursive call 1: 2 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-04-11 20:31:46,661 INFO L202 ElimStorePlain]: Needed 3 recursive calls to eliminate 2 variables, input treesize:28, output treesize:21 [2018-04-11 20:31:46,712 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 16 treesize of output 13 [2018-04-11 20:31:46,714 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 13 treesize of output 12 [2018-04-11 20:31:46,714 INFO L267 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 1 xjuncts. [2018-04-11 20:31:46,716 INFO L267 ElimStorePlain]: Start of recursive call 2: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-04-11 20:31:46,722 INFO L267 ElimStorePlain]: Start of recursive call 1: 1 dim-2 vars, End of recursive call: and 1 xjuncts. [2018-04-11 20:31:46,722 INFO L202 ElimStorePlain]: Needed 3 recursive calls to eliminate 1 variables, input treesize:35, output treesize:31 [2018-04-11 20:31:46,744 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 29 treesize of output 30 [2018-04-11 20:31:46,745 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 13 treesize of output 12 [2018-04-11 20:31:46,745 INFO L267 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 1 xjuncts. [2018-04-11 20:31:46,748 INFO L267 ElimStorePlain]: Start of recursive call 2: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-04-11 20:31:46,753 INFO L267 ElimStorePlain]: Start of recursive call 1: 1 dim-2 vars, End of recursive call: and 1 xjuncts. [2018-04-11 20:31:46,753 INFO L202 ElimStorePlain]: Needed 3 recursive calls to eliminate 1 variables, input treesize:42, output treesize:38 [2018-04-11 20:31:47,161 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 2 select indices, 2 select index equivalence classes, 1 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 46 treesize of output 40 [2018-04-11 20:31:47,163 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 21 treesize of output 13 [2018-04-11 20:31:47,164 INFO L267 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 1 xjuncts. [2018-04-11 20:31:47,173 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 [2018-04-11 20:31:47,173 INFO L267 ElimStorePlain]: Start of recursive call 4: End of recursive call: and 2 xjuncts. [2018-04-11 20:31:47,177 INFO L267 ElimStorePlain]: Start of recursive call 2: 2 dim-1 vars, End of recursive call: and 2 xjuncts. [2018-04-11 20:31:47,192 INFO L267 ElimStorePlain]: Start of recursive call 1: 2 dim-0 vars, 1 dim-2 vars, End of recursive call: 2 dim-0 vars, and 2 xjuncts. [2018-04-11 20:31:47,193 INFO L202 ElimStorePlain]: Needed 4 recursive calls to eliminate 3 variables, input treesize:68, output treesize:81 [2018-04-11 20:31:47,311 INFO L134 CoverageAnalysis]: Checked inductivity of 19 backedges. 3 proven. 16 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-04-11 20:31:47,328 INFO L320 seRefinementStrategy]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2018-04-11 20:31:47,328 INFO L335 seRefinementStrategy]: Number of different interpolants: perfect sequences [] imperfect sequences [12, 21] total 32 [2018-04-11 20:31:47,329 INFO L442 AbstractCegarLoop]: Interpolant automaton has 33 states [2018-04-11 20:31:47,329 INFO L132 InterpolantAutomaton]: Constructing interpolant automaton starting with 33 interpolants. [2018-04-11 20:31:47,329 INFO L133 InterpolantAutomaton]: CoverageRelationStatistics Valid=81, Invalid=975, Unknown=0, NotChecked=0, Total=1056 [2018-04-11 20:31:47,329 INFO L87 Difference]: Start difference. First operand 52 states and 54 transitions. Second operand 33 states. [2018-04-11 20:31:50,817 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-04-11 20:31:50,817 INFO L93 Difference]: Finished difference Result 123 states and 131 transitions. [2018-04-11 20:31:50,818 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 49 states. [2018-04-11 20:31:50,818 INFO L78 Accepts]: Start accepts. Automaton has 33 states. Word has length 48 [2018-04-11 20:31:50,818 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-04-11 20:31:50,818 INFO L225 Difference]: With dead ends: 123 [2018-04-11 20:31:50,818 INFO L226 Difference]: Without dead ends: 123 [2018-04-11 20:31:50,819 INFO L567 BasicCegarLoop]: 0 DeclaredPredicates, 108 GetRequests, 30 SyntacticMatches, 1 SemanticMatches, 77 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1360 ImplicationChecksByTransitivity, 3.7s TimeCoverageRelationStatistics Valid=840, Invalid=5322, Unknown=0, NotChecked=0, Total=6162 [2018-04-11 20:31:50,819 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 123 states. [2018-04-11 20:31:50,820 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 123 to 71. [2018-04-11 20:31:50,820 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 71 states. [2018-04-11 20:31:50,820 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 71 states to 71 states and 75 transitions. [2018-04-11 20:31:50,821 INFO L78 Accepts]: Start accepts. Automaton has 71 states and 75 transitions. Word has length 48 [2018-04-11 20:31:50,821 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-04-11 20:31:50,821 INFO L459 AbstractCegarLoop]: Abstraction has 71 states and 75 transitions. [2018-04-11 20:31:50,821 INFO L460 AbstractCegarLoop]: Interpolant automaton has 33 states. [2018-04-11 20:31:50,821 INFO L276 IsEmpty]: Start isEmpty. Operand 71 states and 75 transitions. [2018-04-11 20:31:50,821 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 71 [2018-04-11 20:31:50,822 INFO L347 BasicCegarLoop]: Found error trace [2018-04-11 20:31:50,822 INFO L355 BasicCegarLoop]: trace histogram [4, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-04-11 20:31:50,822 INFO L408 AbstractCegarLoop]: === Iteration 18 === [mainErr3RequiresViolation, mainErr1RequiresViolation, mainErr2RequiresViolation, mainErr4EnsuresViolationMEMORY_LEAK, mainErr0RequiresViolation, cstrspnErr7RequiresViolation, cstrspnErr5RequiresViolation, cstrspnErr1RequiresViolation, cstrspnErr0RequiresViolation, cstrspnErr6RequiresViolation, cstrspnErr8RequiresViolation, cstrspnErr2RequiresViolation, cstrspnErr4RequiresViolation, cstrspnErr3RequiresViolation, cstrspnErr9RequiresViolation]=== [2018-04-11 20:31:50,822 INFO L82 PathProgramCache]: Analyzing trace with hash 861802640, now seen corresponding path program 1 times [2018-04-11 20:31:50,822 INFO L213 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-04-11 20:31:50,822 INFO L68 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-04-11 20:31:50,822 INFO L119 rtionOrderModulation]: Craig nested/tree interpolation forces the following order [2018-04-11 20:31:50,822 INFO L101 rtionOrderModulation]: Changing assertion order to NOT_INCREMENTALLY [2018-04-11 20:31:50,822 INFO L119 rtionOrderModulation]: Craig nested/tree interpolation forces the following order [2018-04-11 20:31:50,837 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-04-11 20:31:50,838 WARN L137 erpolLogProxyWrapper]: Using partial proofs (cut at CNF-level). Set option :produce-proofs to true to get complete proofs. [2018-04-11 20:31:51,020 INFO L134 CoverageAnalysis]: Checked inductivity of 72 backedges. 0 proven. 50 refuted. 0 times theorem prover too weak. 22 trivial. 0 not checked. [2018-04-11 20:31:51,020 INFO L308 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2018-04-11 20:31:51,020 INFO L213 ckRefinementStrategy]: Switched to mode Z3_FP No working directory specified, using /home/ultimate/work/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 6 with z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 6 with z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:12000 [2018-04-11 20:31:51,026 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-04-11 20:31:51,044 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-04-11 20:31:51,047 INFO L270 TraceCheckSpWp]: Computing forward predicates... [2018-04-11 20:31:51,050 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 6 treesize of output 5 [2018-04-11 20:31:51,050 INFO L267 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2018-04-11 20:31:51,054 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 6 treesize of output 5 [2018-04-11 20:31:51,054 INFO L267 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 1 xjuncts. [2018-04-11 20:31:51,057 INFO L267 ElimStorePlain]: Start of recursive call 1: 2 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-04-11 20:31:51,057 INFO L202 ElimStorePlain]: Needed 3 recursive calls to eliminate 2 variables, input treesize:16, output treesize:14 [2018-04-11 20:31:51,077 INFO L700 Elim1Store]: detected not equals via solver [2018-04-11 20:31:51,078 INFO L700 Elim1Store]: detected not equals via solver [2018-04-11 20:31:51,078 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 [2018-04-11 20:31:51,078 INFO L267 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2018-04-11 20:31:51,083 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 [2018-04-11 20:31:51,083 INFO L267 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 1 xjuncts. [2018-04-11 20:31:51,086 INFO L267 ElimStorePlain]: Start of recursive call 1: 2 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-04-11 20:31:51,086 INFO L202 ElimStorePlain]: Needed 3 recursive calls to eliminate 2 variables, input treesize:25, output treesize:18 [2018-04-11 20:31:51,109 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 16 treesize of output 13 [2018-04-11 20:31:51,111 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 13 treesize of output 12 [2018-04-11 20:31:51,112 INFO L267 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 1 xjuncts. [2018-04-11 20:31:51,113 INFO L267 ElimStorePlain]: Start of recursive call 2: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-04-11 20:31:51,117 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. [2018-04-11 20:31:51,117 INFO L202 ElimStorePlain]: Needed 3 recursive calls to eliminate 2 variables, input treesize:32, output treesize:28 [2018-04-11 20:31:51,147 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 29 treesize of output 30 [2018-04-11 20:31:51,148 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 13 treesize of output 12 [2018-04-11 20:31:51,148 INFO L267 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 1 xjuncts. [2018-04-11 20:31:51,151 INFO L267 ElimStorePlain]: Start of recursive call 2: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-04-11 20:31:51,156 INFO L267 ElimStorePlain]: Start of recursive call 1: 3 dim-0 vars, 1 dim-2 vars, End of recursive call: 3 dim-0 vars, and 1 xjuncts. [2018-04-11 20:31:51,156 INFO L202 ElimStorePlain]: Needed 3 recursive calls to eliminate 4 variables, input treesize:39, output treesize:35 [2018-04-11 20:31:53,663 WARN L148 SmtUtils]: Spent 2035ms on a formula simplification that was a NOOP. DAG size: 46 [2018-04-11 20:31:53,723 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 3 select indices, 3 select index equivalence classes, 1 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 2 case distinctions, treesize of input 47 treesize of output 57 [2018-04-11 20:31:53,728 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 49 treesize of output 42 [2018-04-11 20:31:53,728 INFO L267 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 1 xjuncts. [2018-04-11 20:31:53,781 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 41 treesize of output 31 [2018-04-11 20:31:53,781 INFO L267 ElimStorePlain]: Start of recursive call 4: End of recursive call: and 1 xjuncts. [2018-04-11 20:31:53,832 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 41 treesize of output 39 [2018-04-11 20:31:53,832 INFO L267 ElimStorePlain]: Start of recursive call 5: End of recursive call: and 2 xjuncts. [2018-04-11 20:31:53,888 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 4 select indices, 4 select index equivalence classes, 3 disjoint index pairs (out of 6 index pairs), introduced 0 new quantified variables, introduced 3 case distinctions, treesize of input 37 treesize of output 57 [2018-04-11 20:31:53,888 INFO L267 ElimStorePlain]: Start of recursive call 6: End of recursive call: and 4 xjuncts. [2018-04-11 20:31:53,960 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 38 treesize of output 28 [2018-04-11 20:31:53,961 INFO L267 ElimStorePlain]: Start of recursive call 7: End of recursive call: and 1 xjuncts. [2018-04-11 20:31:54,032 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 28 treesize of output 26 [2018-04-11 20:31:54,032 INFO L267 ElimStorePlain]: Start of recursive call 8: End of recursive call: and 2 xjuncts. [2018-04-11 20:31:54,107 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 3 select indices, 3 select index equivalence classes, 2 disjoint index pairs (out of 3 index pairs), introduced 0 new quantified variables, introduced 2 case distinctions, treesize of input 31 treesize of output 39 [2018-04-11 20:31:54,108 INFO L267 ElimStorePlain]: Start of recursive call 9: End of recursive call: and 4 xjuncts. [2018-04-11 20:31:54,189 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 2 select indices, 2 select index equivalence classes, 2 disjoint index pairs (out of 1 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 29 treesize of output 21 [2018-04-11 20:31:54,189 INFO L267 ElimStorePlain]: Start of recursive call 10: End of recursive call: and 1 xjuncts. [2018-04-11 20:31:54,211 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 35 treesize of output 27 [2018-04-11 20:31:54,211 INFO L267 ElimStorePlain]: Start of recursive call 11: End of recursive call: and 1 xjuncts. [2018-04-11 20:31:54,263 INFO L267 ElimStorePlain]: Start of recursive call 2: 8 dim-1 vars, End of recursive call: and 7 xjuncts. [2018-04-11 20:31:54,313 INFO L267 ElimStorePlain]: Start of recursive call 1: 5 dim-0 vars, 1 dim-2 vars, End of recursive call: and 3 xjuncts. [2018-04-11 20:31:54,314 INFO L202 ElimStorePlain]: Needed 11 recursive calls to eliminate 6 variables, input treesize:67, output treesize:78 [2018-04-11 20:31:54,433 INFO L134 CoverageAnalysis]: Checked inductivity of 72 backedges. 60 proven. 10 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2018-04-11 20:31:54,450 INFO L320 seRefinementStrategy]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2018-04-11 20:31:54,450 INFO L335 seRefinementStrategy]: Number of different interpolants: perfect sequences [] imperfect sequences [12, 21] total 32 [2018-04-11 20:31:54,451 INFO L442 AbstractCegarLoop]: Interpolant automaton has 33 states [2018-04-11 20:31:54,451 INFO L132 InterpolantAutomaton]: Constructing interpolant automaton starting with 33 interpolants. [2018-04-11 20:31:54,451 INFO L133 InterpolantAutomaton]: CoverageRelationStatistics Valid=139, Invalid=917, Unknown=0, NotChecked=0, Total=1056 [2018-04-11 20:31:54,451 INFO L87 Difference]: Start difference. First operand 71 states and 75 transitions. Second operand 33 states. [2018-04-11 20:31:54,859 WARN L151 SmtUtils]: Spent 117ms on a formula simplification. DAG size of input: 47 DAG size of output 43 [2018-04-11 20:31:56,182 WARN L151 SmtUtils]: Spent 1176ms on a formula simplification. DAG size of input: 44 DAG size of output 40 [2018-04-11 20:32:01,846 WARN L151 SmtUtils]: Spent 4642ms on a formula simplification. DAG size of input: 63 DAG size of output 56 [2018-04-11 20:32:08,968 WARN L151 SmtUtils]: Spent 4100ms on a formula simplification. DAG size of input: 65 DAG size of output 57 [2018-04-11 20:32:10,519 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-04-11 20:32:10,520 INFO L93 Difference]: Finished difference Result 98 states and 104 transitions. [2018-04-11 20:32:10,520 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 36 states. [2018-04-11 20:32:10,520 INFO L78 Accepts]: Start accepts. Automaton has 33 states. Word has length 70 [2018-04-11 20:32:10,520 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-04-11 20:32:10,520 INFO L225 Difference]: With dead ends: 98 [2018-04-11 20:32:10,520 INFO L226 Difference]: Without dead ends: 0 [2018-04-11 20:32:10,521 INFO L567 BasicCegarLoop]: 0 DeclaredPredicates, 118 GetRequests, 55 SyntacticMatches, 0 SemanticMatches, 63 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 532 ImplicationChecksByTransitivity, 14.3s TimeCoverageRelationStatistics Valid=859, Invalid=3301, Unknown=0, NotChecked=0, Total=4160 [2018-04-11 20:32:10,521 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2018-04-11 20:32:10,521 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2018-04-11 20:32:10,521 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 0 states. [2018-04-11 20:32:10,521 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2018-04-11 20:32:10,521 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 70 [2018-04-11 20:32:10,521 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-04-11 20:32:10,521 INFO L459 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2018-04-11 20:32:10,521 INFO L460 AbstractCegarLoop]: Interpolant automaton has 33 states. [2018-04-11 20:32:10,521 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2018-04-11 20:32:10,521 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2018-04-11 20:32:10,524 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 11.04 08:32:10 BoogieIcfgContainer [2018-04-11 20:32:10,524 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2018-04-11 20:32:10,525 INFO L168 Benchmark]: Toolchain (without parser) took 36925.93 ms. Allocated memory was 402.1 MB in the beginning and 771.8 MB in the end (delta: 369.6 MB). Free memory was 334.0 MB in the beginning and 735.6 MB in the end (delta: -401.6 MB). There was no memory consumed. Max. memory is 5.3 GB. [2018-04-11 20:32:10,525 INFO L168 Benchmark]: CDTParser took 0.18 ms. Allocated memory is still 402.1 MB. Free memory is still 360.4 MB. There was no memory consumed. Max. memory is 5.3 GB. [2018-04-11 20:32:10,526 INFO L168 Benchmark]: CACSL2BoogieTranslator took 263.22 ms. Allocated memory is still 402.1 MB. Free memory was 333.4 MB in the beginning and 307.8 MB in the end (delta: 25.5 MB). Peak memory consumption was 25.5 MB. Max. memory is 5.3 GB. [2018-04-11 20:32:10,526 INFO L168 Benchmark]: Boogie Preprocessor took 45.97 ms. Allocated memory is still 402.1 MB. Free memory was 307.8 MB in the beginning and 305.8 MB in the end (delta: 2.0 MB). Peak memory consumption was 2.0 MB. Max. memory is 5.3 GB. [2018-04-11 20:32:10,526 INFO L168 Benchmark]: RCFGBuilder took 392.34 ms. Allocated memory was 402.1 MB in the beginning and 591.4 MB in the end (delta: 189.3 MB). Free memory was 305.8 MB in the beginning and 526.5 MB in the end (delta: -220.6 MB). Peak memory consumption was 24.5 MB. Max. memory is 5.3 GB. [2018-04-11 20:32:10,526 INFO L168 Benchmark]: TraceAbstraction took 36221.50 ms. Allocated memory was 591.4 MB in the beginning and 771.8 MB in the end (delta: 180.4 MB). Free memory was 525.4 MB in the beginning and 735.6 MB in the end (delta: -210.3 MB). There was no memory consumed. Max. memory is 5.3 GB. [2018-04-11 20:32:10,527 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 402.1 MB. Free memory is still 360.4 MB. There was no memory consumed. Max. memory is 5.3 GB. * CACSL2BoogieTranslator took 263.22 ms. Allocated memory is still 402.1 MB. Free memory was 333.4 MB in the beginning and 307.8 MB in the end (delta: 25.5 MB). Peak memory consumption was 25.5 MB. Max. memory is 5.3 GB. * Boogie Preprocessor took 45.97 ms. Allocated memory is still 402.1 MB. Free memory was 307.8 MB in the beginning and 305.8 MB in the end (delta: 2.0 MB). Peak memory consumption was 2.0 MB. Max. memory is 5.3 GB. * RCFGBuilder took 392.34 ms. Allocated memory was 402.1 MB in the beginning and 591.4 MB in the end (delta: 189.3 MB). Free memory was 305.8 MB in the beginning and 526.5 MB in the end (delta: -220.6 MB). Peak memory consumption was 24.5 MB. Max. memory is 5.3 GB. * TraceAbstraction took 36221.50 ms. Allocated memory was 591.4 MB in the beginning and 771.8 MB in the end (delta: 180.4 MB). Free memory was 525.4 MB in the beginning and 735.6 MB in the end (delta: -210.3 MB). There was no memory consumed. Max. memory is 5.3 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - PositiveResult [Line: 567]: pointer dereference always succeeds For all program executions holds that pointer dereference always succeeds at this location - PositiveResult [Line: 566]: pointer dereference always succeeds For all program executions holds that pointer dereference always succeeds at this location - PositiveResult [Line: 567]: pointer dereference always succeeds For all program executions holds that pointer dereference always succeeds at this location - PositiveResult [Line: 555]: all allocated memory was freed For all program executions holds that all allocated memory was freed at this location - PositiveResult [Line: 566]: pointer dereference always succeeds For all program executions holds that pointer dereference always succeeds at this location - PositiveResult [Line: 548]: pointer dereference always succeeds For all program executions holds that pointer dereference always succeeds at this location - PositiveResult [Line: 548]: pointer dereference always succeeds For all program executions holds that pointer dereference always succeeds at this location - PositiveResult [Line: 545]: pointer dereference always succeeds For all program executions holds that pointer dereference always succeeds at this location - PositiveResult [Line: 545]: pointer dereference always succeeds For all program executions holds that pointer dereference always succeeds at this location - PositiveResult [Line: 548]: pointer dereference always succeeds For all program executions holds that pointer dereference always succeeds at this location - PositiveResult [Line: 550]: pointer dereference always succeeds For all program executions holds that pointer dereference always succeeds at this location - PositiveResult [Line: 547]: pointer dereference always succeeds For all program executions holds that pointer dereference always succeeds at this location - PositiveResult [Line: 548]: pointer dereference always succeeds For all program executions holds that pointer dereference always succeeds at this location - PositiveResult [Line: 547]: pointer dereference always succeeds For all program executions holds that pointer dereference always succeeds at this location - PositiveResult [Line: 550]: pointer dereference always succeeds For all program executions holds that pointer dereference always succeeds at this location - AllSpecificationsHoldResult: All specifications hold 15 specifications checked. All of them hold - StatisticsResult: Ultimate Automizer benchmark data CFG has 6 procedures, 64 locations, 15 error locations. SAFE Result, 36.1s OverallTime, 18 OverallIterations, 4 TraceHistogramMax, 25.1s AutomataDifference, 0.0s DeadEndRemovalTime, 0.0s HoareAnnotationTime, HoareTripleCheckerStatistics: 666 SDtfs, 2013 SDslu, 3093 SDs, 0 SdLazy, 4033 SolverSat, 392 SolverUnsat, 3 SolverUnknown, 0 SolverNotchecked, 6.1s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 523 GetRequests, 173 SyntacticMatches, 3 SemanticMatches, 347 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2669 ImplicationChecksByTransitivity, 26.4s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=87occurred in iteration=15, 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: 0.0s AutomataMinimizationTime, 18 MinimizatonAttempts, 200 StatesRemovedByMinimization, 9 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TraceCheckStatistics: 0.0s SsaConstructionTime, 0.2s SatisfiabilityAnalysisTime, 10.2s InterpolantComputationTime, 719 NumberOfCodeBlocks, 719 NumberOfCodeBlocksAsserted, 25 NumberOfCheckSat, 696 ConstructedInterpolants, 126 QuantifiedInterpolants, 481197 SizeOfPredicates, 72 NumberOfNonLiveVariables, 883 ConjunctsInSsa, 198 ConjunctsInUnsatCore, 23 InterpolantComputations, 13 PerfectInterpolantSequences, 97/220 InterpolantCoveringCapability, InvariantSynthesisStatistics: No data available, InterpolantConsolidationStatistics: No data available, ReuseStatistics: No data available RESULT: Ultimate proved your program to be correct! Written .csv to /home/ultimate/work/ultimate/releaseScripts/default/UAutomizer-linux/../../../releaseScripts/default/UAutomizer-linux/csv/cstrspn-alloca_true-valid-memsafety_true-termination.i_svcomp-DerefFreeMemtrack-32bit-Automizer_Camel.epf_AutomizerC.xml/Csv-Benchmark-0-2018-04-11_20-32-10-533.csv Written .csv to /home/ultimate/work/ultimate/releaseScripts/default/UAutomizer-linux/../../../releaseScripts/default/UAutomizer-linux/csv/cstrspn-alloca_true-valid-memsafety_true-termination.i_svcomp-DerefFreeMemtrack-32bit-Automizer_Camel.epf_AutomizerC.xml/Csv-TraceAbstractionBenchmarks-0-2018-04-11_20-32-10-533.csv Received shutdown request...