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 09:58:11,614 INFO L170 SettingsManager]: Resetting all preferences to default values... [2018-04-11 09:58:11,615 INFO L174 SettingsManager]: Resetting UltimateCore preferences to default values [2018-04-11 09:58:11,628 INFO L177 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2018-04-11 09:58:11,628 INFO L174 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2018-04-11 09:58:11,629 INFO L174 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2018-04-11 09:58:11,630 INFO L174 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2018-04-11 09:58:11,632 INFO L174 SettingsManager]: Resetting LassoRanker preferences to default values [2018-04-11 09:58:11,633 INFO L174 SettingsManager]: Resetting Reaching Definitions preferences to default values [2018-04-11 09:58:11,634 INFO L174 SettingsManager]: Resetting SyntaxChecker preferences to default values [2018-04-11 09:58:11,634 INFO L177 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2018-04-11 09:58:11,635 INFO L174 SettingsManager]: Resetting LTL2Aut preferences to default values [2018-04-11 09:58:11,636 INFO L174 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2018-04-11 09:58:11,636 INFO L174 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2018-04-11 09:58:11,637 INFO L174 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2018-04-11 09:58:11,638 INFO L174 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2018-04-11 09:58:11,640 INFO L174 SettingsManager]: Resetting CodeCheck preferences to default values [2018-04-11 09:58:11,641 INFO L174 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2018-04-11 09:58:11,642 INFO L174 SettingsManager]: Resetting RCFGBuilder preferences to default values [2018-04-11 09:58:11,643 INFO L174 SettingsManager]: Resetting TraceAbstraction preferences to default values [2018-04-11 09:58:11,644 INFO L177 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... 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[2018-04-11 09:58:11,649 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 09:58:11,667 INFO L110 SettingsManager]: Loading preferences was successful [2018-04-11 09:58:11,667 INFO L112 SettingsManager]: Preferences different from defaults after loading the file: [2018-04-11 09:58:11,668 INFO L131 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2018-04-11 09:58:11,668 INFO L133 SettingsManager]: * Create parallel compositions if possible=false [2018-04-11 09:58:11,668 INFO L133 SettingsManager]: * Use SBE=true [2018-04-11 09:58:11,669 INFO L131 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2018-04-11 09:58:11,669 INFO L133 SettingsManager]: * sizeof long=4 [2018-04-11 09:58:11,669 INFO L133 SettingsManager]: * Check unreachability of error function in SV-COMP mode=false [2018-04-11 09:58:11,669 INFO L133 SettingsManager]: * Overapproximate operations on floating types=true [2018-04-11 09:58:11,669 INFO L133 SettingsManager]: * sizeof POINTER=4 [2018-04-11 09:58:11,669 INFO L133 SettingsManager]: * Check division by zero=IGNORE [2018-04-11 09:58:11,669 INFO L133 SettingsManager]: * Check for the main procedure if all allocated memory was freed=true [2018-04-11 09:58:11,669 INFO L133 SettingsManager]: * Bitprecise bitfields=true [2018-04-11 09:58:11,669 INFO L133 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2018-04-11 09:58:11,670 INFO L133 SettingsManager]: * sizeof long double=12 [2018-04-11 09:58:11,670 INFO L131 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2018-04-11 09:58:11,670 INFO L133 SettingsManager]: * Size of a code block=SequenceOfStatements [2018-04-11 09:58:11,670 INFO L133 SettingsManager]: * To the following directory=./dump/ [2018-04-11 09:58:11,670 INFO L133 SettingsManager]: * SMT solver=External_DefaultMode [2018-04-11 09:58:11,670 INFO L133 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2018-04-11 09:58:11,670 INFO L131 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2018-04-11 09:58:11,671 INFO L133 SettingsManager]: * Interpolant automaton=TWOTRACK [2018-04-11 09:58:11,671 INFO L133 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2018-04-11 09:58:11,671 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 09:58:11,698 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2018-04-11 09:58:11,709 INFO L266 ainManager$Toolchain]: [Toolchain 1]: Parser(s) successfully (re)initialized [2018-04-11 09:58:11,712 INFO L222 ainManager$Toolchain]: [Toolchain 1]: Toolchain data selected. [2018-04-11 09:58:11,714 INFO L271 PluginConnector]: Initializing CDTParser... [2018-04-11 09:58:11,714 INFO L276 PluginConnector]: CDTParser initialized [2018-04-11 09:58:11,715 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 09:58:12,008 INFO L225 CDTParser]: Created temporary CDT project at /home/ultimate/work/ultimate/releaseScripts/default/UAutomizer-linux/data/FLAGb02c2f828 [2018-04-11 09:58:12,145 INFO L287 CDTParser]: IsIndexed: true [2018-04-11 09:58:12,145 INFO L288 CDTParser]: Found 1 translation units. [2018-04-11 09:58:12,146 INFO L168 CDTParser]: Scanning cstrspn-alloca_true-valid-memsafety_true-termination.i [2018-04-11 09:58:12,154 INFO L210 ultiparseSymbolTable]: Include resolver: [2018-04-11 09:58:12,154 INFO L215 ultiparseSymbolTable]: [2018-04-11 09:58:12,154 INFO L218 ultiparseSymbolTable]: Function table: [2018-04-11 09:58:12,154 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 09:58:12,154 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 09:58:12,154 INFO L221 ultiparseSymbolTable]: Function definition of null ('main') in cstrspn-alloca_true-valid-memsafety_true-termination.i [2018-04-11 09:58:12,155 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 09:58:12,155 INFO L227 ultiparseSymbolTable]: Global variable table: [2018-04-11 09:58:12,155 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 09:58:12,155 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 09:58:12,155 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 09:58:12,155 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 09:58:12,155 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 09:58:12,155 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 09:58:12,155 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 09:58:12,156 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 09:58:12,156 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 09:58:12,156 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 09:58:12,156 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 09:58:12,156 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 09:58:12,156 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 09:58:12,156 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 09:58:12,156 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 09:58:12,156 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 09:58:12,156 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 09:58:12,157 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 09:58:12,157 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 09:58:12,157 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 09:58:12,157 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 09:58:12,157 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 09:58:12,157 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 09:58:12,157 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 09:58:12,157 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 09:58:12,157 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 09:58:12,158 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 09:58:12,158 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 09:58:12,158 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 09:58:12,158 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 09:58:12,158 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 09:58:12,158 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 09:58:12,158 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 09:58:12,158 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 09:58:12,158 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 09:58:12,158 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 09:58:12,159 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 09:58:12,159 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 09:58:12,159 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 09:58:12,159 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 09:58:12,159 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 09:58:12,159 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 09:58:12,159 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 09:58:12,159 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 09:58:12,159 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 09:58:12,159 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 09:58:12,159 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 09:58:12,159 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 09:58:12,159 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 09:58:12,159 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 09:58:12,159 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 09:58:12,159 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 09:58:12,159 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 09:58:12,160 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 09:58:12,160 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 09:58:12,160 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 09:58:12,160 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 09:58:12,160 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 09:58:12,160 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 09:58:12,160 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 09:58:12,160 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 09:58:12,160 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 09:58:12,160 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 09:58:12,160 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 09:58:12,160 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 09:58:12,160 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 09:58:12,160 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 09:58:12,160 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 09:58:12,160 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 09:58:12,160 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 09:58:12,160 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 09:58:12,160 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 09:58:12,160 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 09:58:12,161 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 09:58:12,161 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 09:58:12,161 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 09:58:12,161 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 09:58:12,161 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 09:58:12,161 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 09:58:12,161 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 09:58:12,161 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 09:58:12,161 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 09:58:12,161 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 09:58:12,161 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 09:58:12,161 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 09:58:12,162 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 09:58:12,162 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 09:58:12,162 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 09:58:12,162 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 09:58:12,162 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 09:58:12,162 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 09:58:12,162 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 09:58:12,162 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 09:58:12,162 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 09:58:12,162 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 09:58:12,162 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 09:58:12,162 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 09:58:12,163 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 09:58:12,163 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 09:58:12,163 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 09:58:12,163 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 09:58:12,163 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 09:58:12,163 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 09:58:12,163 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 09:58:12,163 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 09:58:12,163 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 09:58:12,163 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 09:58:12,163 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 09:58:12,163 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 09:58:12,164 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 09:58:12,164 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 09:58:12,164 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 09:58:12,164 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 09:58:12,164 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 09:58:12,164 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 09:58:12,164 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 09:58:12,164 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 09:58:12,164 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 09:58:12,164 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 09:58:12,164 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 09:58:12,177 INFO L330 CDTParser]: Deleted temporary CDT project at /home/ultimate/work/ultimate/releaseScripts/default/UAutomizer-linux/data/FLAGb02c2f828 [2018-04-11 09:58:12,181 INFO L304 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2018-04-11 09:58:12,182 INFO L131 ToolchainWalker]: Walking toolchain with 4 elements. [2018-04-11 09:58:12,182 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2018-04-11 09:58:12,182 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2018-04-11 09:58:12,186 INFO L276 PluginConnector]: CACSL2BoogieTranslator initialized [2018-04-11 09:58:12,186 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 11.04 09:58:12" (1/1) ... [2018-04-11 09:58:12,188 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@39cb06ab and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.04 09:58:12, skipping insertion in model container [2018-04-11 09:58:12,188 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 11.04 09:58:12" (1/1) ... [2018-04-11 09:58:12,198 INFO L167 Dispatcher]: Using SV-COMP mode [2018-04-11 09:58:12,220 INFO L167 Dispatcher]: Using SV-COMP mode [2018-04-11 09:58:12,342 INFO L175 PostProcessor]: Settings: Checked method=main [2018-04-11 09:58:12,378 INFO L175 PostProcessor]: Settings: Checked method=main [2018-04-11 09:58:12,383 INFO L100 SccComputation]: Graph consists of 0 InCaSumBalls and 112 non ball SCCs. Number of states in SCCs 112. [2018-04-11 09:58:12,419 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.04 09:58:12 WrapperNode [2018-04-11 09:58:12,419 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2018-04-11 09:58:12,420 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2018-04-11 09:58:12,420 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2018-04-11 09:58:12,420 INFO L276 PluginConnector]: Boogie Preprocessor initialized [2018-04-11 09:58:12,427 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.04 09:58:12" (1/1) ... [2018-04-11 09:58:12,427 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.04 09:58:12" (1/1) ... [2018-04-11 09:58:12,438 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.04 09:58:12" (1/1) ... [2018-04-11 09:58:12,438 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.04 09:58:12" (1/1) ... [2018-04-11 09:58:12,446 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.04 09:58:12" (1/1) ... [2018-04-11 09:58:12,450 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.04 09:58:12" (1/1) ... [2018-04-11 09:58:12,452 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.04 09:58:12" (1/1) ... [2018-04-11 09:58:12,456 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2018-04-11 09:58:12,456 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2018-04-11 09:58:12,456 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2018-04-11 09:58:12,457 INFO L276 PluginConnector]: RCFGBuilder initialized [2018-04-11 09:58:12,458 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.04 09:58:12" (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 09:58:12,539 INFO L136 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2018-04-11 09:58:12,539 INFO L136 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2018-04-11 09:58:12,540 INFO L136 BoogieDeclarations]: Found implementation of procedure __U_MULTI_fcstrspn_alloca_true_valid_memsafety_true_termination_i____bswap_32 [2018-04-11 09:58:12,540 INFO L136 BoogieDeclarations]: Found implementation of procedure __U_MULTI_fcstrspn_alloca_true_valid_memsafety_true_termination_i____bswap_64 [2018-04-11 09:58:12,540 INFO L136 BoogieDeclarations]: Found implementation of procedure cstrspn [2018-04-11 09:58:12,540 INFO L136 BoogieDeclarations]: Found implementation of procedure main [2018-04-11 09:58:12,540 INFO L128 BoogieDeclarations]: Found specification of procedure __U_MULTI_fcstrspn_alloca_true_valid_memsafety_true_termination_i____bswap_32 [2018-04-11 09:58:12,540 INFO L128 BoogieDeclarations]: Found specification of procedure __U_MULTI_fcstrspn_alloca_true_valid_memsafety_true_termination_i____bswap_64 [2018-04-11 09:58:12,540 INFO L128 BoogieDeclarations]: Found specification of procedure __ctype_get_mb_cur_max [2018-04-11 09:58:12,540 INFO L128 BoogieDeclarations]: Found specification of procedure atof [2018-04-11 09:58:12,540 INFO L128 BoogieDeclarations]: Found specification of procedure atoi [2018-04-11 09:58:12,540 INFO L128 BoogieDeclarations]: Found specification of procedure atol [2018-04-11 09:58:12,540 INFO L128 BoogieDeclarations]: Found specification of procedure atoll [2018-04-11 09:58:12,540 INFO L128 BoogieDeclarations]: Found specification of procedure strtod [2018-04-11 09:58:12,540 INFO L128 BoogieDeclarations]: Found specification of procedure strtof [2018-04-11 09:58:12,540 INFO L128 BoogieDeclarations]: Found specification of procedure strtold [2018-04-11 09:58:12,540 INFO L128 BoogieDeclarations]: Found specification of procedure strtol [2018-04-11 09:58:12,540 INFO L128 BoogieDeclarations]: Found specification of procedure strtoul [2018-04-11 09:58:12,540 INFO L128 BoogieDeclarations]: Found specification of procedure strtoq [2018-04-11 09:58:12,541 INFO L128 BoogieDeclarations]: Found specification of procedure strtouq [2018-04-11 09:58:12,541 INFO L128 BoogieDeclarations]: Found specification of procedure strtoll [2018-04-11 09:58:12,541 INFO L128 BoogieDeclarations]: Found specification of procedure strtoull [2018-04-11 09:58:12,541 INFO L128 BoogieDeclarations]: Found specification of procedure l64a [2018-04-11 09:58:12,541 INFO L128 BoogieDeclarations]: Found specification of procedure a64l [2018-04-11 09:58:12,541 INFO L128 BoogieDeclarations]: Found specification of procedure select [2018-04-11 09:58:12,541 INFO L128 BoogieDeclarations]: Found specification of procedure pselect [2018-04-11 09:58:12,541 INFO L128 BoogieDeclarations]: Found specification of procedure gnu_dev_major [2018-04-11 09:58:12,541 INFO L128 BoogieDeclarations]: Found specification of procedure gnu_dev_minor [2018-04-11 09:58:12,541 INFO L128 BoogieDeclarations]: Found specification of procedure gnu_dev_makedev [2018-04-11 09:58:12,541 INFO L128 BoogieDeclarations]: Found specification of procedure random [2018-04-11 09:58:12,541 INFO L128 BoogieDeclarations]: Found specification of procedure srandom [2018-04-11 09:58:12,541 INFO L128 BoogieDeclarations]: Found specification of procedure initstate [2018-04-11 09:58:12,541 INFO L128 BoogieDeclarations]: Found specification of procedure setstate [2018-04-11 09:58:12,541 INFO L128 BoogieDeclarations]: Found specification of procedure random_r [2018-04-11 09:58:12,541 INFO L128 BoogieDeclarations]: Found specification of procedure srandom_r [2018-04-11 09:58:12,541 INFO L128 BoogieDeclarations]: Found specification of procedure initstate_r [2018-04-11 09:58:12,542 INFO L128 BoogieDeclarations]: Found specification of procedure setstate_r [2018-04-11 09:58:12,542 INFO L128 BoogieDeclarations]: Found specification of procedure rand [2018-04-11 09:58:12,542 INFO L128 BoogieDeclarations]: Found specification of procedure srand [2018-04-11 09:58:12,542 INFO L128 BoogieDeclarations]: Found specification of procedure rand_r [2018-04-11 09:58:12,542 INFO L128 BoogieDeclarations]: Found specification of procedure drand48 [2018-04-11 09:58:12,542 INFO L128 BoogieDeclarations]: Found specification of procedure erand48 [2018-04-11 09:58:12,542 INFO L128 BoogieDeclarations]: Found specification of procedure lrand48 [2018-04-11 09:58:12,542 INFO L128 BoogieDeclarations]: Found specification of procedure nrand48 [2018-04-11 09:58:12,542 INFO L128 BoogieDeclarations]: Found specification of procedure mrand48 [2018-04-11 09:58:12,542 INFO L128 BoogieDeclarations]: Found specification of procedure jrand48 [2018-04-11 09:58:12,542 INFO L128 BoogieDeclarations]: Found specification of procedure srand48 [2018-04-11 09:58:12,542 INFO L128 BoogieDeclarations]: Found specification of procedure seed48 [2018-04-11 09:58:12,542 INFO L128 BoogieDeclarations]: Found specification of procedure lcong48 [2018-04-11 09:58:12,542 INFO L128 BoogieDeclarations]: Found specification of procedure drand48_r [2018-04-11 09:58:12,542 INFO L128 BoogieDeclarations]: Found specification of procedure erand48_r [2018-04-11 09:58:12,542 INFO L128 BoogieDeclarations]: Found specification of procedure lrand48_r [2018-04-11 09:58:12,543 INFO L128 BoogieDeclarations]: Found specification of procedure nrand48_r [2018-04-11 09:58:12,543 INFO L128 BoogieDeclarations]: Found specification of procedure mrand48_r [2018-04-11 09:58:12,543 INFO L128 BoogieDeclarations]: Found specification of procedure jrand48_r [2018-04-11 09:58:12,543 INFO L128 BoogieDeclarations]: Found specification of procedure srand48_r [2018-04-11 09:58:12,543 INFO L128 BoogieDeclarations]: Found specification of procedure seed48_r [2018-04-11 09:58:12,543 INFO L128 BoogieDeclarations]: Found specification of procedure lcong48_r [2018-04-11 09:58:12,543 INFO L128 BoogieDeclarations]: Found specification of procedure malloc [2018-04-11 09:58:12,543 INFO L128 BoogieDeclarations]: Found specification of procedure calloc [2018-04-11 09:58:12,543 INFO L128 BoogieDeclarations]: Found specification of procedure realloc [2018-04-11 09:58:12,543 INFO L128 BoogieDeclarations]: Found specification of procedure free [2018-04-11 09:58:12,543 INFO L128 BoogieDeclarations]: Found specification of procedure cfree [2018-04-11 09:58:12,543 INFO L128 BoogieDeclarations]: Found specification of procedure alloca [2018-04-11 09:58:12,543 INFO L128 BoogieDeclarations]: Found specification of procedure valloc [2018-04-11 09:58:12,543 INFO L128 BoogieDeclarations]: Found specification of procedure posix_memalign [2018-04-11 09:58:12,543 INFO L128 BoogieDeclarations]: Found specification of procedure abort [2018-04-11 09:58:12,543 INFO L128 BoogieDeclarations]: Found specification of procedure atexit [2018-04-11 09:58:12,543 INFO L128 BoogieDeclarations]: Found specification of procedure on_exit [2018-04-11 09:58:12,543 INFO L128 BoogieDeclarations]: Found specification of procedure exit [2018-04-11 09:58:12,544 INFO L128 BoogieDeclarations]: Found specification of procedure _Exit [2018-04-11 09:58:12,544 INFO L128 BoogieDeclarations]: Found specification of procedure getenv [2018-04-11 09:58:12,544 INFO L128 BoogieDeclarations]: Found specification of procedure putenv [2018-04-11 09:58:12,544 INFO L128 BoogieDeclarations]: Found specification of procedure setenv [2018-04-11 09:58:12,544 INFO L128 BoogieDeclarations]: Found specification of procedure unsetenv [2018-04-11 09:58:12,544 INFO L128 BoogieDeclarations]: Found specification of procedure clearenv [2018-04-11 09:58:12,544 INFO L128 BoogieDeclarations]: Found specification of procedure mktemp [2018-04-11 09:58:12,544 INFO L128 BoogieDeclarations]: Found specification of procedure mkstemp [2018-04-11 09:58:12,544 INFO L128 BoogieDeclarations]: Found specification of procedure mkstemps [2018-04-11 09:58:12,544 INFO L128 BoogieDeclarations]: Found specification of procedure mkdtemp [2018-04-11 09:58:12,544 INFO L128 BoogieDeclarations]: Found specification of procedure system [2018-04-11 09:58:12,544 INFO L128 BoogieDeclarations]: Found specification of procedure realpath [2018-04-11 09:58:12,544 INFO L128 BoogieDeclarations]: Found specification of procedure bsearch [2018-04-11 09:58:12,544 INFO L128 BoogieDeclarations]: Found specification of procedure qsort [2018-04-11 09:58:12,544 INFO L128 BoogieDeclarations]: Found specification of procedure abs [2018-04-11 09:58:12,544 INFO L128 BoogieDeclarations]: Found specification of procedure labs [2018-04-11 09:58:12,544 INFO L128 BoogieDeclarations]: Found specification of procedure llabs [2018-04-11 09:58:12,544 INFO L128 BoogieDeclarations]: Found specification of procedure div [2018-04-11 09:58:12,544 INFO L128 BoogieDeclarations]: Found specification of procedure ldiv [2018-04-11 09:58:12,545 INFO L128 BoogieDeclarations]: Found specification of procedure lldiv [2018-04-11 09:58:12,545 INFO L128 BoogieDeclarations]: Found specification of procedure ecvt [2018-04-11 09:58:12,545 INFO L128 BoogieDeclarations]: Found specification of procedure fcvt [2018-04-11 09:58:12,545 INFO L128 BoogieDeclarations]: Found specification of procedure gcvt [2018-04-11 09:58:12,545 INFO L128 BoogieDeclarations]: Found specification of procedure qecvt [2018-04-11 09:58:12,545 INFO L128 BoogieDeclarations]: Found specification of procedure qfcvt [2018-04-11 09:58:12,545 INFO L128 BoogieDeclarations]: Found specification of procedure qgcvt [2018-04-11 09:58:12,545 INFO L128 BoogieDeclarations]: Found specification of procedure ecvt_r [2018-04-11 09:58:12,545 INFO L128 BoogieDeclarations]: Found specification of procedure fcvt_r [2018-04-11 09:58:12,545 INFO L128 BoogieDeclarations]: Found specification of procedure qecvt_r [2018-04-11 09:58:12,545 INFO L128 BoogieDeclarations]: Found specification of procedure qfcvt_r [2018-04-11 09:58:12,545 INFO L128 BoogieDeclarations]: Found specification of procedure mblen [2018-04-11 09:58:12,545 INFO L128 BoogieDeclarations]: Found specification of procedure mbtowc [2018-04-11 09:58:12,545 INFO L128 BoogieDeclarations]: Found specification of procedure wctomb [2018-04-11 09:58:12,545 INFO L128 BoogieDeclarations]: Found specification of procedure mbstowcs [2018-04-11 09:58:12,545 INFO L128 BoogieDeclarations]: Found specification of procedure wcstombs [2018-04-11 09:58:12,545 INFO L128 BoogieDeclarations]: Found specification of procedure rpmatch [2018-04-11 09:58:12,545 INFO L128 BoogieDeclarations]: Found specification of procedure getsubopt [2018-04-11 09:58:12,546 INFO L128 BoogieDeclarations]: Found specification of procedure getloadavg [2018-04-11 09:58:12,547 INFO L128 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_int [2018-04-11 09:58:12,547 INFO L128 BoogieDeclarations]: Found specification of procedure cstrspn [2018-04-11 09:58:12,547 INFO L128 BoogieDeclarations]: Found specification of procedure read~int [2018-04-11 09:58:12,547 INFO L128 BoogieDeclarations]: Found specification of procedure main [2018-04-11 09:58:12,547 INFO L128 BoogieDeclarations]: Found specification of procedure #Ultimate.alloc [2018-04-11 09:58:12,547 INFO L128 BoogieDeclarations]: Found specification of procedure write~int [2018-04-11 09:58:12,547 INFO L128 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2018-04-11 09:58:12,547 INFO L128 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2018-04-11 09:58:12,547 INFO L128 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2018-04-11 09:58:12,547 INFO L128 BoogieDeclarations]: Found specification of procedure write~unchecked~int [2018-04-11 09:58:12,814 INFO L259 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2018-04-11 09:58:12,814 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 11.04 09:58:12 BoogieIcfgContainer [2018-04-11 09:58:12,814 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2018-04-11 09:58:12,815 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2018-04-11 09:58:12,815 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2018-04-11 09:58:12,817 INFO L276 PluginConnector]: TraceAbstraction initialized [2018-04-11 09:58:12,817 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 11.04 09:58:12" (1/3) ... [2018-04-11 09:58:12,817 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@33bc947b and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 11.04 09:58:12, skipping insertion in model container [2018-04-11 09:58:12,817 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.04 09:58:12" (2/3) ... [2018-04-11 09:58:12,817 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@33bc947b and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 11.04 09:58:12, skipping insertion in model container [2018-04-11 09:58:12,817 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 11.04 09:58:12" (3/3) ... [2018-04-11 09:58:12,818 INFO L107 eAbstractionObserver]: Analyzing ICFG cstrspn-alloca_true-valid-memsafety_true-termination.i [2018-04-11 09:58:12,826 INFO L131 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2018-04-11 09:58:12,831 INFO L143 ceAbstractionStarter]: Appying trace abstraction to program that has 15 error locations. [2018-04-11 09:58:12,859 INFO L128 ementStrategyFactory]: Using default assertion order modulation [2018-04-11 09:58:12,860 INFO L369 AbstractCegarLoop]: Interprodecural is true [2018-04-11 09:58:12,860 INFO L370 AbstractCegarLoop]: Hoare is false [2018-04-11 09:58:12,860 INFO L371 AbstractCegarLoop]: Compute interpolants for FPandBP [2018-04-11 09:58:12,860 INFO L372 AbstractCegarLoop]: Backedges is TWOTRACK [2018-04-11 09:58:12,860 INFO L373 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2018-04-11 09:58:12,860 INFO L374 AbstractCegarLoop]: Difference is false [2018-04-11 09:58:12,860 INFO L375 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2018-04-11 09:58:12,860 INFO L380 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2018-04-11 09:58:12,861 INFO L87 2NestedWordAutomaton]: Mode: main mode - execution starts in main procedure [2018-04-11 09:58:12,868 INFO L276 IsEmpty]: Start isEmpty. Operand 58 states. [2018-04-11 09:58:12,873 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 14 [2018-04-11 09:58:12,873 INFO L347 BasicCegarLoop]: Found error trace [2018-04-11 09:58:12,874 INFO L355 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-04-11 09:58:12,874 INFO L408 AbstractCegarLoop]: === Iteration 1 === [mainErr3RequiresViolation, mainErr1RequiresViolation, mainErr2RequiresViolation, mainErr4EnsuresViolationMEMORY_LEAK, mainErr0RequiresViolation, cstrspnErr7RequiresViolation, cstrspnErr5RequiresViolation, cstrspnErr1RequiresViolation, cstrspnErr0RequiresViolation, cstrspnErr6RequiresViolation, cstrspnErr8RequiresViolation, cstrspnErr2RequiresViolation, cstrspnErr4RequiresViolation, cstrspnErr3RequiresViolation, cstrspnErr9RequiresViolation]=== [2018-04-11 09:58:12,877 INFO L82 PathProgramCache]: Analyzing trace with hash 2018700559, now seen corresponding path program 1 times [2018-04-11 09:58:12,878 INFO L213 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-04-11 09:58:12,878 INFO L68 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-04-11 09:58:12,909 INFO L119 rtionOrderModulation]: Craig nested/tree interpolation forces the following order [2018-04-11 09:58:12,909 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-04-11 09:58:12,909 INFO L119 rtionOrderModulation]: Craig nested/tree interpolation forces the following order [2018-04-11 09:58:12,941 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-04-11 09:58:12,946 WARN L137 erpolLogProxyWrapper]: Using partial proofs (cut at CNF-level). Set option :produce-proofs to true to get complete proofs. [2018-04-11 09:58:13,017 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 09:58:13,018 INFO L320 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-04-11 09:58:13,018 INFO L335 seRefinementStrategy]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2018-04-11 09:58:13,019 INFO L442 AbstractCegarLoop]: Interpolant automaton has 4 states [2018-04-11 09:58:13,026 INFO L132 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2018-04-11 09:58:13,027 INFO L133 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2018-04-11 09:58:13,029 INFO L87 Difference]: Start difference. First operand 58 states. Second operand 4 states. [2018-04-11 09:58:13,117 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-04-11 09:58:13,117 INFO L93 Difference]: Finished difference Result 57 states and 62 transitions. [2018-04-11 09:58:13,118 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2018-04-11 09:58:13,118 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 13 [2018-04-11 09:58:13,119 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-04-11 09:58:13,126 INFO L225 Difference]: With dead ends: 57 [2018-04-11 09:58:13,126 INFO L226 Difference]: Without dead ends: 54 [2018-04-11 09:58:13,128 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 09:58:13,139 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 54 states. [2018-04-11 09:58:13,148 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 54 to 54. [2018-04-11 09:58:13,149 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 54 states. [2018-04-11 09:58:13,150 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 54 states to 54 states and 59 transitions. [2018-04-11 09:58:13,151 INFO L78 Accepts]: Start accepts. Automaton has 54 states and 59 transitions. Word has length 13 [2018-04-11 09:58:13,151 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-04-11 09:58:13,151 INFO L459 AbstractCegarLoop]: Abstraction has 54 states and 59 transitions. [2018-04-11 09:58:13,151 INFO L460 AbstractCegarLoop]: Interpolant automaton has 4 states. [2018-04-11 09:58:13,152 INFO L276 IsEmpty]: Start isEmpty. Operand 54 states and 59 transitions. [2018-04-11 09:58:13,152 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 14 [2018-04-11 09:58:13,152 INFO L347 BasicCegarLoop]: Found error trace [2018-04-11 09:58:13,152 INFO L355 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-04-11 09:58:13,152 INFO L408 AbstractCegarLoop]: === Iteration 2 === [mainErr3RequiresViolation, mainErr1RequiresViolation, mainErr2RequiresViolation, mainErr4EnsuresViolationMEMORY_LEAK, mainErr0RequiresViolation, cstrspnErr7RequiresViolation, cstrspnErr5RequiresViolation, cstrspnErr1RequiresViolation, cstrspnErr0RequiresViolation, cstrspnErr6RequiresViolation, cstrspnErr8RequiresViolation, cstrspnErr2RequiresViolation, cstrspnErr4RequiresViolation, cstrspnErr3RequiresViolation, cstrspnErr9RequiresViolation]=== [2018-04-11 09:58:13,152 INFO L82 PathProgramCache]: Analyzing trace with hash 2018700560, now seen corresponding path program 1 times [2018-04-11 09:58:13,152 INFO L213 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-04-11 09:58:13,153 INFO L68 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-04-11 09:58:13,153 INFO L119 rtionOrderModulation]: Craig nested/tree interpolation forces the following order [2018-04-11 09:58:13,153 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-04-11 09:58:13,153 INFO L119 rtionOrderModulation]: Craig nested/tree interpolation forces the following order [2018-04-11 09:58:13,166 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-04-11 09:58:13,167 WARN L137 erpolLogProxyWrapper]: Using partial proofs (cut at CNF-level). Set option :produce-proofs to true to get complete proofs. [2018-04-11 09:58:13,245 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 09:58:13,245 INFO L320 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-04-11 09:58:13,245 INFO L335 seRefinementStrategy]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2018-04-11 09:58:13,246 INFO L442 AbstractCegarLoop]: Interpolant automaton has 6 states [2018-04-11 09:58:13,246 INFO L132 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2018-04-11 09:58:13,246 INFO L133 InterpolantAutomaton]: CoverageRelationStatistics Valid=13, Invalid=17, Unknown=0, NotChecked=0, Total=30 [2018-04-11 09:58:13,247 INFO L87 Difference]: Start difference. First operand 54 states and 59 transitions. Second operand 6 states. [2018-04-11 09:58:13,290 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-04-11 09:58:13,290 INFO L93 Difference]: Finished difference Result 53 states and 58 transitions. [2018-04-11 09:58:13,290 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2018-04-11 09:58:13,290 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 13 [2018-04-11 09:58:13,291 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-04-11 09:58:13,291 INFO L225 Difference]: With dead ends: 53 [2018-04-11 09:58:13,291 INFO L226 Difference]: Without dead ends: 53 [2018-04-11 09:58:13,292 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 09:58:13,292 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 53 states. [2018-04-11 09:58:13,295 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 53 to 53. [2018-04-11 09:58:13,295 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 53 states. [2018-04-11 09:58:13,296 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 53 states to 53 states and 58 transitions. [2018-04-11 09:58:13,296 INFO L78 Accepts]: Start accepts. Automaton has 53 states and 58 transitions. Word has length 13 [2018-04-11 09:58:13,296 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-04-11 09:58:13,296 INFO L459 AbstractCegarLoop]: Abstraction has 53 states and 58 transitions. [2018-04-11 09:58:13,296 INFO L460 AbstractCegarLoop]: Interpolant automaton has 6 states. [2018-04-11 09:58:13,297 INFO L276 IsEmpty]: Start isEmpty. Operand 53 states and 58 transitions. [2018-04-11 09:58:13,297 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 15 [2018-04-11 09:58:13,297 INFO L347 BasicCegarLoop]: Found error trace [2018-04-11 09:58:13,297 INFO L355 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-04-11 09:58:13,297 INFO L408 AbstractCegarLoop]: === Iteration 3 === [mainErr3RequiresViolation, mainErr1RequiresViolation, mainErr2RequiresViolation, mainErr4EnsuresViolationMEMORY_LEAK, mainErr0RequiresViolation, cstrspnErr7RequiresViolation, cstrspnErr5RequiresViolation, cstrspnErr1RequiresViolation, cstrspnErr0RequiresViolation, cstrspnErr6RequiresViolation, cstrspnErr8RequiresViolation, cstrspnErr2RequiresViolation, cstrspnErr4RequiresViolation, cstrspnErr3RequiresViolation, cstrspnErr9RequiresViolation]=== [2018-04-11 09:58:13,297 INFO L82 PathProgramCache]: Analyzing trace with hash -1844792117, now seen corresponding path program 1 times [2018-04-11 09:58:13,297 INFO L213 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-04-11 09:58:13,298 INFO L68 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-04-11 09:58:13,298 INFO L119 rtionOrderModulation]: Craig nested/tree interpolation forces the following order [2018-04-11 09:58:13,300 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-04-11 09:58:13,300 INFO L119 rtionOrderModulation]: Craig nested/tree interpolation forces the following order [2018-04-11 09:58:13,313 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-04-11 09:58:13,314 WARN L137 erpolLogProxyWrapper]: Using partial proofs (cut at CNF-level). Set option :produce-proofs to true to get complete proofs. [2018-04-11 09:58:13,339 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 09:58:13,339 INFO L320 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-04-11 09:58:13,339 INFO L335 seRefinementStrategy]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2018-04-11 09:58:13,340 INFO L442 AbstractCegarLoop]: Interpolant automaton has 4 states [2018-04-11 09:58:13,340 INFO L132 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2018-04-11 09:58:13,340 INFO L133 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2018-04-11 09:58:13,340 INFO L87 Difference]: Start difference. First operand 53 states and 58 transitions. Second operand 4 states. [2018-04-11 09:58:13,390 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-04-11 09:58:13,391 INFO L93 Difference]: Finished difference Result 52 states and 57 transitions. [2018-04-11 09:58:13,391 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2018-04-11 09:58:13,391 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 14 [2018-04-11 09:58:13,391 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-04-11 09:58:13,392 INFO L225 Difference]: With dead ends: 52 [2018-04-11 09:58:13,392 INFO L226 Difference]: Without dead ends: 52 [2018-04-11 09:58:13,392 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 09:58:13,392 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 52 states. [2018-04-11 09:58:13,394 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 52 to 52. [2018-04-11 09:58:13,395 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 52 states. [2018-04-11 09:58:13,395 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 52 states to 52 states and 57 transitions. [2018-04-11 09:58:13,396 INFO L78 Accepts]: Start accepts. Automaton has 52 states and 57 transitions. Word has length 14 [2018-04-11 09:58:13,396 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-04-11 09:58:13,396 INFO L459 AbstractCegarLoop]: Abstraction has 52 states and 57 transitions. [2018-04-11 09:58:13,396 INFO L460 AbstractCegarLoop]: Interpolant automaton has 4 states. [2018-04-11 09:58:13,396 INFO L276 IsEmpty]: Start isEmpty. Operand 52 states and 57 transitions. [2018-04-11 09:58:13,396 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 15 [2018-04-11 09:58:13,396 INFO L347 BasicCegarLoop]: Found error trace [2018-04-11 09:58:13,396 INFO L355 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-04-11 09:58:13,396 INFO L408 AbstractCegarLoop]: === Iteration 4 === [mainErr3RequiresViolation, mainErr1RequiresViolation, mainErr2RequiresViolation, mainErr4EnsuresViolationMEMORY_LEAK, mainErr0RequiresViolation, cstrspnErr7RequiresViolation, cstrspnErr5RequiresViolation, cstrspnErr1RequiresViolation, cstrspnErr0RequiresViolation, cstrspnErr6RequiresViolation, cstrspnErr8RequiresViolation, cstrspnErr2RequiresViolation, cstrspnErr4RequiresViolation, cstrspnErr3RequiresViolation, cstrspnErr9RequiresViolation]=== [2018-04-11 09:58:13,397 INFO L82 PathProgramCache]: Analyzing trace with hash -1844792116, now seen corresponding path program 1 times [2018-04-11 09:58:13,397 INFO L213 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-04-11 09:58:13,397 INFO L68 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-04-11 09:58:13,398 INFO L119 rtionOrderModulation]: Craig nested/tree interpolation forces the following order [2018-04-11 09:58:13,398 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-04-11 09:58:13,398 INFO L119 rtionOrderModulation]: Craig nested/tree interpolation forces the following order [2018-04-11 09:58:13,407 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-04-11 09:58:13,408 WARN L137 erpolLogProxyWrapper]: Using partial proofs (cut at CNF-level). Set option :produce-proofs to true to get complete proofs. [2018-04-11 09:58:13,454 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 09:58:13,455 INFO L320 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-04-11 09:58:13,455 INFO L335 seRefinementStrategy]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2018-04-11 09:58:13,455 INFO L442 AbstractCegarLoop]: Interpolant automaton has 5 states [2018-04-11 09:58:13,455 INFO L132 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2018-04-11 09:58:13,456 INFO L133 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2018-04-11 09:58:13,456 INFO L87 Difference]: Start difference. First operand 52 states and 57 transitions. Second operand 5 states. [2018-04-11 09:58:13,481 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-04-11 09:58:13,481 INFO L93 Difference]: Finished difference Result 51 states and 56 transitions. [2018-04-11 09:58:13,481 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2018-04-11 09:58:13,481 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 14 [2018-04-11 09:58:13,481 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-04-11 09:58:13,482 INFO L225 Difference]: With dead ends: 51 [2018-04-11 09:58:13,482 INFO L226 Difference]: Without dead ends: 51 [2018-04-11 09:58:13,482 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 09:58:13,482 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 51 states. [2018-04-11 09:58:13,484 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 51 to 51. [2018-04-11 09:58:13,484 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 51 states. [2018-04-11 09:58:13,485 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 51 states to 51 states and 56 transitions. [2018-04-11 09:58:13,485 INFO L78 Accepts]: Start accepts. Automaton has 51 states and 56 transitions. Word has length 14 [2018-04-11 09:58:13,485 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-04-11 09:58:13,486 INFO L459 AbstractCegarLoop]: Abstraction has 51 states and 56 transitions. [2018-04-11 09:58:13,486 INFO L460 AbstractCegarLoop]: Interpolant automaton has 5 states. [2018-04-11 09:58:13,486 INFO L276 IsEmpty]: Start isEmpty. Operand 51 states and 56 transitions. [2018-04-11 09:58:13,486 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 19 [2018-04-11 09:58:13,486 INFO L347 BasicCegarLoop]: Found error trace [2018-04-11 09:58:13,486 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 09:58:13,487 INFO L408 AbstractCegarLoop]: === Iteration 5 === [mainErr3RequiresViolation, mainErr1RequiresViolation, mainErr2RequiresViolation, mainErr4EnsuresViolationMEMORY_LEAK, mainErr0RequiresViolation, cstrspnErr7RequiresViolation, cstrspnErr5RequiresViolation, cstrspnErr1RequiresViolation, cstrspnErr0RequiresViolation, cstrspnErr6RequiresViolation, cstrspnErr8RequiresViolation, cstrspnErr2RequiresViolation, cstrspnErr4RequiresViolation, cstrspnErr3RequiresViolation, cstrspnErr9RequiresViolation]=== [2018-04-11 09:58:13,487 INFO L82 PathProgramCache]: Analyzing trace with hash 1893487725, now seen corresponding path program 1 times [2018-04-11 09:58:13,487 INFO L213 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-04-11 09:58:13,487 INFO L68 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-04-11 09:58:13,488 INFO L119 rtionOrderModulation]: Craig nested/tree interpolation forces the following order [2018-04-11 09:58:13,488 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-04-11 09:58:13,488 INFO L119 rtionOrderModulation]: Craig nested/tree interpolation forces the following order [2018-04-11 09:58:13,497 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-04-11 09:58:13,498 WARN L137 erpolLogProxyWrapper]: Using partial proofs (cut at CNF-level). Set option :produce-proofs to true to get complete proofs. [2018-04-11 09:58:13,524 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 09:58:13,524 INFO L320 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-04-11 09:58:13,524 INFO L335 seRefinementStrategy]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2018-04-11 09:58:13,525 INFO L442 AbstractCegarLoop]: Interpolant automaton has 5 states [2018-04-11 09:58:13,525 INFO L132 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2018-04-11 09:58:13,525 INFO L133 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2018-04-11 09:58:13,525 INFO L87 Difference]: Start difference. First operand 51 states and 56 transitions. Second operand 5 states. [2018-04-11 09:58:13,578 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-04-11 09:58:13,578 INFO L93 Difference]: Finished difference Result 49 states and 54 transitions. [2018-04-11 09:58:13,579 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2018-04-11 09:58:13,579 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 18 [2018-04-11 09:58:13,579 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-04-11 09:58:13,579 INFO L225 Difference]: With dead ends: 49 [2018-04-11 09:58:13,579 INFO L226 Difference]: Without dead ends: 49 [2018-04-11 09:58:13,579 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 09:58:13,579 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 49 states. [2018-04-11 09:58:13,581 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 49 to 49. [2018-04-11 09:58:13,581 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 49 states. [2018-04-11 09:58:13,581 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 49 states to 49 states and 54 transitions. [2018-04-11 09:58:13,581 INFO L78 Accepts]: Start accepts. Automaton has 49 states and 54 transitions. Word has length 18 [2018-04-11 09:58:13,581 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-04-11 09:58:13,581 INFO L459 AbstractCegarLoop]: Abstraction has 49 states and 54 transitions. [2018-04-11 09:58:13,581 INFO L460 AbstractCegarLoop]: Interpolant automaton has 5 states. [2018-04-11 09:58:13,582 INFO L276 IsEmpty]: Start isEmpty. Operand 49 states and 54 transitions. [2018-04-11 09:58:13,582 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 19 [2018-04-11 09:58:13,582 INFO L347 BasicCegarLoop]: Found error trace [2018-04-11 09:58:13,582 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 09:58:13,582 INFO L408 AbstractCegarLoop]: === Iteration 6 === [mainErr3RequiresViolation, mainErr1RequiresViolation, mainErr2RequiresViolation, mainErr4EnsuresViolationMEMORY_LEAK, mainErr0RequiresViolation, cstrspnErr7RequiresViolation, cstrspnErr5RequiresViolation, cstrspnErr1RequiresViolation, cstrspnErr0RequiresViolation, cstrspnErr6RequiresViolation, cstrspnErr8RequiresViolation, cstrspnErr2RequiresViolation, cstrspnErr4RequiresViolation, cstrspnErr3RequiresViolation, cstrspnErr9RequiresViolation]=== [2018-04-11 09:58:13,582 INFO L82 PathProgramCache]: Analyzing trace with hash 1893487726, now seen corresponding path program 1 times [2018-04-11 09:58:13,582 INFO L213 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-04-11 09:58:13,582 INFO L68 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-04-11 09:58:13,583 INFO L119 rtionOrderModulation]: Craig nested/tree interpolation forces the following order [2018-04-11 09:58:13,583 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-04-11 09:58:13,583 INFO L119 rtionOrderModulation]: Craig nested/tree interpolation forces the following order [2018-04-11 09:58:13,589 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-04-11 09:58:13,590 WARN L137 erpolLogProxyWrapper]: Using partial proofs (cut at CNF-level). Set option :produce-proofs to true to get complete proofs. [2018-04-11 09:58:13,653 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 09:58:13,653 INFO L320 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-04-11 09:58:13,653 INFO L335 seRefinementStrategy]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2018-04-11 09:58:13,653 INFO L442 AbstractCegarLoop]: Interpolant automaton has 8 states [2018-04-11 09:58:13,653 INFO L132 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2018-04-11 09:58:13,654 INFO L133 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=41, Unknown=0, NotChecked=0, Total=56 [2018-04-11 09:58:13,654 INFO L87 Difference]: Start difference. First operand 49 states and 54 transitions. Second operand 8 states. [2018-04-11 09:58:13,752 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-04-11 09:58:13,752 INFO L93 Difference]: Finished difference Result 73 states and 82 transitions. [2018-04-11 09:58:13,752 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2018-04-11 09:58:13,752 INFO L78 Accepts]: Start accepts. Automaton has 8 states. Word has length 18 [2018-04-11 09:58:13,752 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-04-11 09:58:13,754 INFO L225 Difference]: With dead ends: 73 [2018-04-11 09:58:13,754 INFO L226 Difference]: Without dead ends: 73 [2018-04-11 09:58:13,754 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 09:58:13,754 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 73 states. [2018-04-11 09:58:13,756 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 73 to 53. [2018-04-11 09:58:13,756 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 53 states. [2018-04-11 09:58:13,757 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 53 states to 53 states and 59 transitions. [2018-04-11 09:58:13,757 INFO L78 Accepts]: Start accepts. Automaton has 53 states and 59 transitions. Word has length 18 [2018-04-11 09:58:13,757 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-04-11 09:58:13,757 INFO L459 AbstractCegarLoop]: Abstraction has 53 states and 59 transitions. [2018-04-11 09:58:13,757 INFO L460 AbstractCegarLoop]: Interpolant automaton has 8 states. [2018-04-11 09:58:13,757 INFO L276 IsEmpty]: Start isEmpty. Operand 53 states and 59 transitions. [2018-04-11 09:58:13,757 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 24 [2018-04-11 09:58:13,757 INFO L347 BasicCegarLoop]: Found error trace [2018-04-11 09:58:13,757 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 09:58:13,757 INFO L408 AbstractCegarLoop]: === Iteration 7 === [mainErr3RequiresViolation, mainErr1RequiresViolation, mainErr2RequiresViolation, mainErr4EnsuresViolationMEMORY_LEAK, mainErr0RequiresViolation, cstrspnErr7RequiresViolation, cstrspnErr5RequiresViolation, cstrspnErr1RequiresViolation, cstrspnErr0RequiresViolation, cstrspnErr6RequiresViolation, cstrspnErr8RequiresViolation, cstrspnErr2RequiresViolation, cstrspnErr4RequiresViolation, cstrspnErr3RequiresViolation, cstrspnErr9RequiresViolation]=== [2018-04-11 09:58:13,758 INFO L82 PathProgramCache]: Analyzing trace with hash -894404631, now seen corresponding path program 1 times [2018-04-11 09:58:13,758 INFO L213 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-04-11 09:58:13,758 INFO L68 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-04-11 09:58:13,758 INFO L119 rtionOrderModulation]: Craig nested/tree interpolation forces the following order [2018-04-11 09:58:13,758 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-04-11 09:58:13,758 INFO L119 rtionOrderModulation]: Craig nested/tree interpolation forces the following order [2018-04-11 09:58:13,767 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-04-11 09:58:13,767 WARN L137 erpolLogProxyWrapper]: Using partial proofs (cut at CNF-level). Set option :produce-proofs to true to get complete proofs. [2018-04-11 09:58:13,802 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 09:58:13,802 INFO L320 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-04-11 09:58:13,802 INFO L335 seRefinementStrategy]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2018-04-11 09:58:13,802 INFO L442 AbstractCegarLoop]: Interpolant automaton has 6 states [2018-04-11 09:58:13,802 INFO L132 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2018-04-11 09:58:13,802 INFO L133 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2018-04-11 09:58:13,803 INFO L87 Difference]: Start difference. First operand 53 states and 59 transitions. Second operand 6 states. [2018-04-11 09:58:13,852 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-04-11 09:58:13,852 INFO L93 Difference]: Finished difference Result 53 states and 59 transitions. [2018-04-11 09:58:13,852 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2018-04-11 09:58:13,852 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 23 [2018-04-11 09:58:13,852 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-04-11 09:58:13,853 INFO L225 Difference]: With dead ends: 53 [2018-04-11 09:58:13,853 INFO L226 Difference]: Without dead ends: 53 [2018-04-11 09:58:13,853 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 09:58:13,853 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 53 states. [2018-04-11 09:58:13,854 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 53 to 50. [2018-04-11 09:58:13,854 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 50 states. [2018-04-11 09:58:13,855 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 50 states to 50 states and 56 transitions. [2018-04-11 09:58:13,855 INFO L78 Accepts]: Start accepts. Automaton has 50 states and 56 transitions. Word has length 23 [2018-04-11 09:58:13,855 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-04-11 09:58:13,855 INFO L459 AbstractCegarLoop]: Abstraction has 50 states and 56 transitions. [2018-04-11 09:58:13,855 INFO L460 AbstractCegarLoop]: Interpolant automaton has 6 states. [2018-04-11 09:58:13,855 INFO L276 IsEmpty]: Start isEmpty. Operand 50 states and 56 transitions. [2018-04-11 09:58:13,855 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 24 [2018-04-11 09:58:13,855 INFO L347 BasicCegarLoop]: Found error trace [2018-04-11 09:58:13,855 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 09:58:13,855 INFO L408 AbstractCegarLoop]: === Iteration 8 === [mainErr3RequiresViolation, mainErr1RequiresViolation, mainErr2RequiresViolation, mainErr4EnsuresViolationMEMORY_LEAK, mainErr0RequiresViolation, cstrspnErr7RequiresViolation, cstrspnErr5RequiresViolation, cstrspnErr1RequiresViolation, cstrspnErr0RequiresViolation, cstrspnErr6RequiresViolation, cstrspnErr8RequiresViolation, cstrspnErr2RequiresViolation, cstrspnErr4RequiresViolation, cstrspnErr3RequiresViolation, cstrspnErr9RequiresViolation]=== [2018-04-11 09:58:13,856 INFO L82 PathProgramCache]: Analyzing trace with hash -894404630, now seen corresponding path program 1 times [2018-04-11 09:58:13,856 INFO L213 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-04-11 09:58:13,856 INFO L68 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-04-11 09:58:13,856 INFO L119 rtionOrderModulation]: Craig nested/tree interpolation forces the following order [2018-04-11 09:58:13,856 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-04-11 09:58:13,856 INFO L119 rtionOrderModulation]: Craig nested/tree interpolation forces the following order [2018-04-11 09:58:13,864 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-04-11 09:58:13,864 WARN L137 erpolLogProxyWrapper]: Using partial proofs (cut at CNF-level). Set option :produce-proofs to true to get complete proofs. [2018-04-11 09:58:13,942 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-04-11 09:58:13,943 INFO L320 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-04-11 09:58:13,943 INFO L335 seRefinementStrategy]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2018-04-11 09:58:13,943 INFO L442 AbstractCegarLoop]: Interpolant automaton has 9 states [2018-04-11 09:58:13,943 INFO L132 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2018-04-11 09:58:13,943 INFO L133 InterpolantAutomaton]: CoverageRelationStatistics Valid=18, Invalid=54, Unknown=0, NotChecked=0, Total=72 [2018-04-11 09:58:13,944 INFO L87 Difference]: Start difference. First operand 50 states and 56 transitions. Second operand 9 states. [2018-04-11 09:58:14,030 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-04-11 09:58:14,030 INFO L93 Difference]: Finished difference Result 67 states and 77 transitions. [2018-04-11 09:58:14,031 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2018-04-11 09:58:14,031 INFO L78 Accepts]: Start accepts. Automaton has 9 states. Word has length 23 [2018-04-11 09:58:14,031 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-04-11 09:58:14,032 INFO L225 Difference]: With dead ends: 67 [2018-04-11 09:58:14,032 INFO L226 Difference]: Without dead ends: 67 [2018-04-11 09:58:14,032 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 09:58:14,032 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 67 states. [2018-04-11 09:58:14,034 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 67 to 58. [2018-04-11 09:58:14,034 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 58 states. [2018-04-11 09:58:14,035 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 58 states to 58 states and 66 transitions. [2018-04-11 09:58:14,035 INFO L78 Accepts]: Start accepts. Automaton has 58 states and 66 transitions. Word has length 23 [2018-04-11 09:58:14,035 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-04-11 09:58:14,035 INFO L459 AbstractCegarLoop]: Abstraction has 58 states and 66 transitions. [2018-04-11 09:58:14,035 INFO L460 AbstractCegarLoop]: Interpolant automaton has 9 states. [2018-04-11 09:58:14,036 INFO L276 IsEmpty]: Start isEmpty. Operand 58 states and 66 transitions. [2018-04-11 09:58:14,036 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 29 [2018-04-11 09:58:14,036 INFO L347 BasicCegarLoop]: Found error trace [2018-04-11 09:58:14,036 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 09:58:14,036 INFO L408 AbstractCegarLoop]: === Iteration 9 === [mainErr3RequiresViolation, mainErr1RequiresViolation, mainErr2RequiresViolation, mainErr4EnsuresViolationMEMORY_LEAK, mainErr0RequiresViolation, cstrspnErr7RequiresViolation, cstrspnErr5RequiresViolation, cstrspnErr1RequiresViolation, cstrspnErr0RequiresViolation, cstrspnErr6RequiresViolation, cstrspnErr8RequiresViolation, cstrspnErr2RequiresViolation, cstrspnErr4RequiresViolation, cstrspnErr3RequiresViolation, cstrspnErr9RequiresViolation]=== [2018-04-11 09:58:14,036 INFO L82 PathProgramCache]: Analyzing trace with hash -1986095611, now seen corresponding path program 1 times [2018-04-11 09:58:14,037 INFO L213 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-04-11 09:58:14,037 INFO L68 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-04-11 09:58:14,037 INFO L119 rtionOrderModulation]: Craig nested/tree interpolation forces the following order [2018-04-11 09:58:14,037 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-04-11 09:58:14,038 INFO L119 rtionOrderModulation]: Craig nested/tree interpolation forces the following order [2018-04-11 09:58:14,050 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-04-11 09:58:14,050 WARN L137 erpolLogProxyWrapper]: Using partial proofs (cut at CNF-level). Set option :produce-proofs to true to get complete proofs. [2018-04-11 09:58:14,114 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 09:58:14,114 INFO L320 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-04-11 09:58:14,114 INFO L335 seRefinementStrategy]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2018-04-11 09:58:14,114 INFO L442 AbstractCegarLoop]: Interpolant automaton has 6 states [2018-04-11 09:58:14,114 INFO L132 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2018-04-11 09:58:14,114 INFO L133 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2018-04-11 09:58:14,114 INFO L87 Difference]: Start difference. First operand 58 states and 66 transitions. Second operand 6 states. [2018-04-11 09:58:14,198 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-04-11 09:58:14,199 INFO L93 Difference]: Finished difference Result 57 states and 65 transitions. [2018-04-11 09:58:14,199 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2018-04-11 09:58:14,199 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 28 [2018-04-11 09:58:14,199 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-04-11 09:58:14,199 INFO L225 Difference]: With dead ends: 57 [2018-04-11 09:58:14,199 INFO L226 Difference]: Without dead ends: 48 [2018-04-11 09:58:14,200 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 09:58:14,200 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 48 states. [2018-04-11 09:58:14,201 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 48 to 48. [2018-04-11 09:58:14,201 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 48 states. [2018-04-11 09:58:14,201 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 48 states to 48 states and 54 transitions. [2018-04-11 09:58:14,201 INFO L78 Accepts]: Start accepts. Automaton has 48 states and 54 transitions. Word has length 28 [2018-04-11 09:58:14,201 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-04-11 09:58:14,201 INFO L459 AbstractCegarLoop]: Abstraction has 48 states and 54 transitions. [2018-04-11 09:58:14,201 INFO L460 AbstractCegarLoop]: Interpolant automaton has 6 states. [2018-04-11 09:58:14,201 INFO L276 IsEmpty]: Start isEmpty. Operand 48 states and 54 transitions. [2018-04-11 09:58:14,202 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 29 [2018-04-11 09:58:14,202 INFO L347 BasicCegarLoop]: Found error trace [2018-04-11 09:58:14,202 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 09:58:14,202 INFO L408 AbstractCegarLoop]: === Iteration 10 === [mainErr3RequiresViolation, mainErr1RequiresViolation, mainErr2RequiresViolation, mainErr4EnsuresViolationMEMORY_LEAK, mainErr0RequiresViolation, cstrspnErr7RequiresViolation, cstrspnErr5RequiresViolation, cstrspnErr1RequiresViolation, cstrspnErr0RequiresViolation, cstrspnErr6RequiresViolation, cstrspnErr8RequiresViolation, cstrspnErr2RequiresViolation, cstrspnErr4RequiresViolation, cstrspnErr3RequiresViolation, cstrspnErr9RequiresViolation]=== [2018-04-11 09:58:14,202 INFO L82 PathProgramCache]: Analyzing trace with hash 55851358, now seen corresponding path program 1 times [2018-04-11 09:58:14,202 INFO L213 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-04-11 09:58:14,202 INFO L68 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-04-11 09:58:14,203 INFO L119 rtionOrderModulation]: Craig nested/tree interpolation forces the following order [2018-04-11 09:58:14,203 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-04-11 09:58:14,203 INFO L119 rtionOrderModulation]: Craig nested/tree interpolation forces the following order [2018-04-11 09:58:14,210 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-04-11 09:58:14,210 WARN L137 erpolLogProxyWrapper]: Using partial proofs (cut at CNF-level). Set option :produce-proofs to true to get complete proofs. [2018-04-11 09:58:14,229 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 09:58:14,229 INFO L320 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-04-11 09:58:14,229 INFO L335 seRefinementStrategy]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2018-04-11 09:58:14,229 INFO L442 AbstractCegarLoop]: Interpolant automaton has 3 states [2018-04-11 09:58:14,230 INFO L132 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2018-04-11 09:58:14,230 INFO L133 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2018-04-11 09:58:14,230 INFO L87 Difference]: Start difference. First operand 48 states and 54 transitions. Second operand 3 states. [2018-04-11 09:58:14,236 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-04-11 09:58:14,236 INFO L93 Difference]: Finished difference Result 50 states and 56 transitions. [2018-04-11 09:58:14,236 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2018-04-11 09:58:14,236 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 28 [2018-04-11 09:58:14,237 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-04-11 09:58:14,237 INFO L225 Difference]: With dead ends: 50 [2018-04-11 09:58:14,237 INFO L226 Difference]: Without dead ends: 50 [2018-04-11 09:58:14,237 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 09:58:14,238 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 50 states. [2018-04-11 09:58:14,240 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 50 to 50. [2018-04-11 09:58:14,240 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 50 states. [2018-04-11 09:58:14,241 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 50 states to 50 states and 56 transitions. [2018-04-11 09:58:14,241 INFO L78 Accepts]: Start accepts. Automaton has 50 states and 56 transitions. Word has length 28 [2018-04-11 09:58:14,241 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-04-11 09:58:14,241 INFO L459 AbstractCegarLoop]: Abstraction has 50 states and 56 transitions. [2018-04-11 09:58:14,241 INFO L460 AbstractCegarLoop]: Interpolant automaton has 3 states. [2018-04-11 09:58:14,241 INFO L276 IsEmpty]: Start isEmpty. Operand 50 states and 56 transitions. [2018-04-11 09:58:14,242 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 31 [2018-04-11 09:58:14,242 INFO L347 BasicCegarLoop]: Found error trace [2018-04-11 09:58:14,242 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 09:58:14,242 INFO L408 AbstractCegarLoop]: === Iteration 11 === [mainErr3RequiresViolation, mainErr1RequiresViolation, mainErr2RequiresViolation, mainErr4EnsuresViolationMEMORY_LEAK, mainErr0RequiresViolation, cstrspnErr7RequiresViolation, cstrspnErr5RequiresViolation, cstrspnErr1RequiresViolation, cstrspnErr0RequiresViolation, cstrspnErr6RequiresViolation, cstrspnErr8RequiresViolation, cstrspnErr2RequiresViolation, cstrspnErr4RequiresViolation, cstrspnErr3RequiresViolation, cstrspnErr9RequiresViolation]=== [2018-04-11 09:58:14,242 INFO L82 PathProgramCache]: Analyzing trace with hash 1951988481, now seen corresponding path program 1 times [2018-04-11 09:58:14,242 INFO L213 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-04-11 09:58:14,242 INFO L68 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-04-11 09:58:14,243 INFO L119 rtionOrderModulation]: Craig nested/tree interpolation forces the following order [2018-04-11 09:58:14,243 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-04-11 09:58:14,243 INFO L119 rtionOrderModulation]: Craig nested/tree interpolation forces the following order [2018-04-11 09:58:14,257 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-04-11 09:58:14,257 WARN L137 erpolLogProxyWrapper]: Using partial proofs (cut at CNF-level). Set option :produce-proofs to true to get complete proofs. [2018-04-11 09:58:14,380 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 09:58:14,380 INFO L320 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-04-11 09:58:14,380 INFO L335 seRefinementStrategy]: Number of different interpolants: perfect sequences [11] imperfect sequences [] total 11 [2018-04-11 09:58:14,380 INFO L442 AbstractCegarLoop]: Interpolant automaton has 11 states [2018-04-11 09:58:14,380 INFO L132 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2018-04-11 09:58:14,380 INFO L133 InterpolantAutomaton]: CoverageRelationStatistics Valid=23, Invalid=87, Unknown=0, NotChecked=0, Total=110 [2018-04-11 09:58:14,380 INFO L87 Difference]: Start difference. First operand 50 states and 56 transitions. Second operand 11 states. [2018-04-11 09:58:14,521 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-04-11 09:58:14,521 INFO L93 Difference]: Finished difference Result 62 states and 68 transitions. [2018-04-11 09:58:14,522 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2018-04-11 09:58:14,522 INFO L78 Accepts]: Start accepts. Automaton has 11 states. Word has length 30 [2018-04-11 09:58:14,522 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-04-11 09:58:14,522 INFO L225 Difference]: With dead ends: 62 [2018-04-11 09:58:14,522 INFO L226 Difference]: Without dead ends: 50 [2018-04-11 09:58:14,523 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 09:58:14,523 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 50 states. [2018-04-11 09:58:14,524 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 50 to 50. [2018-04-11 09:58:14,525 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 50 states. [2018-04-11 09:58:14,525 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 50 states to 50 states and 55 transitions. [2018-04-11 09:58:14,525 INFO L78 Accepts]: Start accepts. Automaton has 50 states and 55 transitions. Word has length 30 [2018-04-11 09:58:14,525 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-04-11 09:58:14,525 INFO L459 AbstractCegarLoop]: Abstraction has 50 states and 55 transitions. [2018-04-11 09:58:14,526 INFO L460 AbstractCegarLoop]: Interpolant automaton has 11 states. [2018-04-11 09:58:14,526 INFO L276 IsEmpty]: Start isEmpty. Operand 50 states and 55 transitions. [2018-04-11 09:58:14,526 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 31 [2018-04-11 09:58:14,526 INFO L347 BasicCegarLoop]: Found error trace [2018-04-11 09:58:14,526 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 09:58:14,526 INFO L408 AbstractCegarLoop]: === Iteration 12 === [mainErr3RequiresViolation, mainErr1RequiresViolation, mainErr2RequiresViolation, mainErr4EnsuresViolationMEMORY_LEAK, mainErr0RequiresViolation, cstrspnErr7RequiresViolation, cstrspnErr5RequiresViolation, cstrspnErr1RequiresViolation, cstrspnErr0RequiresViolation, cstrspnErr6RequiresViolation, cstrspnErr8RequiresViolation, cstrspnErr2RequiresViolation, cstrspnErr4RequiresViolation, cstrspnErr3RequiresViolation, cstrspnErr9RequiresViolation]=== [2018-04-11 09:58:14,526 INFO L82 PathProgramCache]: Analyzing trace with hash 1817974975, now seen corresponding path program 1 times [2018-04-11 09:58:14,526 INFO L213 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-04-11 09:58:14,526 INFO L68 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-04-11 09:58:14,527 INFO L119 rtionOrderModulation]: Craig nested/tree interpolation forces the following order [2018-04-11 09:58:14,527 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-04-11 09:58:14,527 INFO L119 rtionOrderModulation]: Craig nested/tree interpolation forces the following order [2018-04-11 09:58:14,534 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-04-11 09:58:14,535 WARN L137 erpolLogProxyWrapper]: Using partial proofs (cut at CNF-level). Set option :produce-proofs to true to get complete proofs. [2018-04-11 09:58:14,609 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 09:58:14,609 INFO L320 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-04-11 09:58:14,610 INFO L335 seRefinementStrategy]: Number of different interpolants: perfect sequences [11] imperfect sequences [] total 11 [2018-04-11 09:58:14,610 INFO L442 AbstractCegarLoop]: Interpolant automaton has 11 states [2018-04-11 09:58:14,610 INFO L132 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2018-04-11 09:58:14,610 INFO L133 InterpolantAutomaton]: CoverageRelationStatistics Valid=21, Invalid=89, Unknown=0, NotChecked=0, Total=110 [2018-04-11 09:58:14,610 INFO L87 Difference]: Start difference. First operand 50 states and 55 transitions. Second operand 11 states. [2018-04-11 09:58:14,712 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-04-11 09:58:14,712 INFO L93 Difference]: Finished difference Result 77 states and 82 transitions. [2018-04-11 09:58:14,712 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2018-04-11 09:58:14,712 INFO L78 Accepts]: Start accepts. Automaton has 11 states. Word has length 30 [2018-04-11 09:58:14,712 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-04-11 09:58:14,712 INFO L225 Difference]: With dead ends: 77 [2018-04-11 09:58:14,712 INFO L226 Difference]: Without dead ends: 77 [2018-04-11 09:58:14,713 INFO L567 BasicCegarLoop]: 0 DeclaredPredicates, 18 GetRequests, 2 SyntacticMatches, 1 SemanticMatches, 15 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 28 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=61, Invalid=211, Unknown=0, NotChecked=0, Total=272 [2018-04-11 09:58:14,713 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 77 states. [2018-04-11 09:58:14,714 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 77 to 75. [2018-04-11 09:58:14,714 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 75 states. [2018-04-11 09:58:14,715 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 75 states to 75 states and 82 transitions. [2018-04-11 09:58:14,715 INFO L78 Accepts]: Start accepts. Automaton has 75 states and 82 transitions. Word has length 30 [2018-04-11 09:58:14,715 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-04-11 09:58:14,715 INFO L459 AbstractCegarLoop]: Abstraction has 75 states and 82 transitions. [2018-04-11 09:58:14,715 INFO L460 AbstractCegarLoop]: Interpolant automaton has 11 states. [2018-04-11 09:58:14,715 INFO L276 IsEmpty]: Start isEmpty. Operand 75 states and 82 transitions. [2018-04-11 09:58:14,715 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 31 [2018-04-11 09:58:14,715 INFO L347 BasicCegarLoop]: Found error trace [2018-04-11 09:58:14,715 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 09:58:14,715 INFO L408 AbstractCegarLoop]: === Iteration 13 === [mainErr3RequiresViolation, mainErr1RequiresViolation, mainErr2RequiresViolation, mainErr4EnsuresViolationMEMORY_LEAK, mainErr0RequiresViolation, cstrspnErr7RequiresViolation, cstrspnErr5RequiresViolation, cstrspnErr1RequiresViolation, cstrspnErr0RequiresViolation, cstrspnErr6RequiresViolation, cstrspnErr8RequiresViolation, cstrspnErr2RequiresViolation, cstrspnErr4RequiresViolation, cstrspnErr3RequiresViolation, cstrspnErr9RequiresViolation]=== [2018-04-11 09:58:14,716 INFO L82 PathProgramCache]: Analyzing trace with hash 12536641, now seen corresponding path program 1 times [2018-04-11 09:58:14,716 INFO L213 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-04-11 09:58:14,716 INFO L68 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-04-11 09:58:14,716 INFO L119 rtionOrderModulation]: Craig nested/tree interpolation forces the following order [2018-04-11 09:58:14,716 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-04-11 09:58:14,716 INFO L119 rtionOrderModulation]: Craig nested/tree interpolation forces the following order [2018-04-11 09:58:14,724 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-04-11 09:58:14,725 WARN L137 erpolLogProxyWrapper]: Using partial proofs (cut at CNF-level). Set option :produce-proofs to true to get complete proofs. [2018-04-11 09:58:14,849 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 09:58:14,849 INFO L308 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2018-04-11 09:58:14,849 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 09:58:14,855 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-04-11 09:58:14,870 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-04-11 09:58:14,884 INFO L270 TraceCheckSpWp]: Computing forward predicates... [2018-04-11 09:58:14,918 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 09:58:14,919 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 09:58:14,919 INFO L267 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 1 xjuncts. [2018-04-11 09:58:14,921 INFO L267 ElimStorePlain]: Start of recursive call 2: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-04-11 09:58:14,928 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 09:58:14,928 INFO L202 ElimStorePlain]: Needed 3 recursive calls to eliminate 2 variables, input treesize:25, output treesize:21 [2018-04-11 09:58:15,067 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 09:58:15,074 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 09:58:15,075 INFO L267 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 2 xjuncts. [2018-04-11 09:58:15,082 INFO L267 ElimStorePlain]: Start of recursive call 2: 1 dim-1 vars, End of recursive call: and 2 xjuncts. [2018-04-11 09:58:15,094 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 09:58:15,094 INFO L202 ElimStorePlain]: Needed 3 recursive calls to eliminate 3 variables, input treesize:34, output treesize:33 [2018-04-11 09:58:15,161 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 09:58:15,179 INFO L320 seRefinementStrategy]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2018-04-11 09:58:15,179 INFO L335 seRefinementStrategy]: Number of different interpolants: perfect sequences [] imperfect sequences [12, 10] total 19 [2018-04-11 09:58:15,179 INFO L442 AbstractCegarLoop]: Interpolant automaton has 20 states [2018-04-11 09:58:15,179 INFO L132 InterpolantAutomaton]: Constructing interpolant automaton starting with 20 interpolants. [2018-04-11 09:58:15,179 INFO L133 InterpolantAutomaton]: CoverageRelationStatistics Valid=47, Invalid=333, Unknown=0, NotChecked=0, Total=380 [2018-04-11 09:58:15,180 INFO L87 Difference]: Start difference. First operand 75 states and 82 transitions. Second operand 20 states. [2018-04-11 09:58:16,338 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-04-11 09:58:16,338 INFO L93 Difference]: Finished difference Result 103 states and 112 transitions. [2018-04-11 09:58:16,338 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2018-04-11 09:58:16,338 INFO L78 Accepts]: Start accepts. Automaton has 20 states. Word has length 30 [2018-04-11 09:58:16,338 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-04-11 09:58:16,339 INFO L225 Difference]: With dead ends: 103 [2018-04-11 09:58:16,339 INFO L226 Difference]: Without dead ends: 103 [2018-04-11 09:58:16,340 INFO L567 BasicCegarLoop]: 0 DeclaredPredicates, 52 GetRequests, 24 SyntacticMatches, 0 SemanticMatches, 28 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 94 ImplicationChecksByTransitivity, 1.1s TimeCoverageRelationStatistics Valid=149, Invalid=721, Unknown=0, NotChecked=0, Total=870 [2018-04-11 09:58:16,340 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 103 states. [2018-04-11 09:58:16,343 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 103 to 82. [2018-04-11 09:58:16,343 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 82 states. [2018-04-11 09:58:16,344 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 82 states to 82 states and 91 transitions. [2018-04-11 09:58:16,344 INFO L78 Accepts]: Start accepts. Automaton has 82 states and 91 transitions. Word has length 30 [2018-04-11 09:58:16,344 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-04-11 09:58:16,344 INFO L459 AbstractCegarLoop]: Abstraction has 82 states and 91 transitions. [2018-04-11 09:58:16,344 INFO L460 AbstractCegarLoop]: Interpolant automaton has 20 states. [2018-04-11 09:58:16,344 INFO L276 IsEmpty]: Start isEmpty. Operand 82 states and 91 transitions. [2018-04-11 09:58:16,345 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 32 [2018-04-11 09:58:16,345 INFO L347 BasicCegarLoop]: Found error trace [2018-04-11 09:58:16,345 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 09:58:16,345 INFO L408 AbstractCegarLoop]: === Iteration 14 === [mainErr3RequiresViolation, mainErr1RequiresViolation, mainErr2RequiresViolation, mainErr4EnsuresViolationMEMORY_LEAK, mainErr0RequiresViolation, cstrspnErr7RequiresViolation, cstrspnErr5RequiresViolation, cstrspnErr1RequiresViolation, cstrspnErr0RequiresViolation, cstrspnErr6RequiresViolation, cstrspnErr8RequiresViolation, cstrspnErr2RequiresViolation, cstrspnErr4RequiresViolation, cstrspnErr3RequiresViolation, cstrspnErr9RequiresViolation]=== [2018-04-11 09:58:16,345 INFO L82 PathProgramCache]: Analyzing trace with hash 1821776862, now seen corresponding path program 1 times [2018-04-11 09:58:16,345 INFO L213 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-04-11 09:58:16,345 INFO L68 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-04-11 09:58:16,346 INFO L119 rtionOrderModulation]: Craig nested/tree interpolation forces the following order [2018-04-11 09:58:16,346 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-04-11 09:58:16,346 INFO L119 rtionOrderModulation]: Craig nested/tree interpolation forces the following order [2018-04-11 09:58:16,353 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-04-11 09:58:16,354 WARN L137 erpolLogProxyWrapper]: Using partial proofs (cut at CNF-level). Set option :produce-proofs to true to get complete proofs. [2018-04-11 09:58:16,424 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 09:58:16,425 INFO L320 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-04-11 09:58:16,425 INFO L335 seRefinementStrategy]: Number of different interpolants: perfect sequences [10] imperfect sequences [] total 10 [2018-04-11 09:58:16,425 INFO L442 AbstractCegarLoop]: Interpolant automaton has 10 states [2018-04-11 09:58:16,425 INFO L132 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2018-04-11 09:58:16,426 INFO L133 InterpolantAutomaton]: CoverageRelationStatistics Valid=19, Invalid=71, Unknown=0, NotChecked=0, Total=90 [2018-04-11 09:58:16,426 INFO L87 Difference]: Start difference. First operand 82 states and 91 transitions. Second operand 10 states. [2018-04-11 09:58:16,565 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-04-11 09:58:16,565 INFO L93 Difference]: Finished difference Result 82 states and 87 transitions. [2018-04-11 09:58:16,565 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2018-04-11 09:58:16,565 INFO L78 Accepts]: Start accepts. Automaton has 10 states. Word has length 31 [2018-04-11 09:58:16,566 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-04-11 09:58:16,566 INFO L225 Difference]: With dead ends: 82 [2018-04-11 09:58:16,566 INFO L226 Difference]: Without dead ends: 59 [2018-04-11 09:58:16,566 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 09:58:16,566 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 59 states. [2018-04-11 09:58:16,567 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 59 to 57. [2018-04-11 09:58:16,567 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 57 states. [2018-04-11 09:58:16,568 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 57 states to 57 states and 61 transitions. [2018-04-11 09:58:16,568 INFO L78 Accepts]: Start accepts. Automaton has 57 states and 61 transitions. Word has length 31 [2018-04-11 09:58:16,568 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-04-11 09:58:16,568 INFO L459 AbstractCegarLoop]: Abstraction has 57 states and 61 transitions. [2018-04-11 09:58:16,568 INFO L460 AbstractCegarLoop]: Interpolant automaton has 10 states. [2018-04-11 09:58:16,568 INFO L276 IsEmpty]: Start isEmpty. Operand 57 states and 61 transitions. [2018-04-11 09:58:16,569 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 34 [2018-04-11 09:58:16,569 INFO L347 BasicCegarLoop]: Found error trace [2018-04-11 09:58:16,569 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 09:58:16,569 INFO L408 AbstractCegarLoop]: === Iteration 15 === [mainErr3RequiresViolation, mainErr1RequiresViolation, mainErr2RequiresViolation, mainErr4EnsuresViolationMEMORY_LEAK, mainErr0RequiresViolation, cstrspnErr7RequiresViolation, cstrspnErr5RequiresViolation, cstrspnErr1RequiresViolation, cstrspnErr0RequiresViolation, cstrspnErr6RequiresViolation, cstrspnErr8RequiresViolation, cstrspnErr2RequiresViolation, cstrspnErr4RequiresViolation, cstrspnErr3RequiresViolation, cstrspnErr9RequiresViolation]=== [2018-04-11 09:58:16,569 INFO L82 PathProgramCache]: Analyzing trace with hash -217317095, now seen corresponding path program 1 times [2018-04-11 09:58:16,569 INFO L213 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-04-11 09:58:16,569 INFO L68 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-04-11 09:58:16,570 INFO L119 rtionOrderModulation]: Craig nested/tree interpolation forces the following order [2018-04-11 09:58:16,570 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-04-11 09:58:16,570 INFO L119 rtionOrderModulation]: Craig nested/tree interpolation forces the following order [2018-04-11 09:58:16,580 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-04-11 09:58:16,581 WARN L137 erpolLogProxyWrapper]: Using partial proofs (cut at CNF-level). Set option :produce-proofs to true to get complete proofs. [2018-04-11 09:58:16,770 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 09:58:16,770 INFO L308 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2018-04-11 09:58:16,770 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 09:58:16,776 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-04-11 09:58:16,794 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-04-11 09:58:16,798 INFO L270 TraceCheckSpWp]: Computing forward predicates... [2018-04-11 09:58:16,801 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 09:58:16,801 INFO L267 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2018-04-11 09:58:16,803 INFO L267 ElimStorePlain]: Start of recursive call 1: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-04-11 09:58:16,803 INFO L202 ElimStorePlain]: Needed 2 recursive calls to eliminate 1 variables, input treesize:10, output treesize:9 [2018-04-11 09:58:16,842 INFO L700 Elim1Store]: detected not equals via solver [2018-04-11 09:58:16,843 INFO L700 Elim1Store]: detected not equals via solver [2018-04-11 09:58:16,844 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 2 select indices, 2 select index equivalence classes, 2 disjoint index pairs (out of 1 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 11 treesize of output 4 [2018-04-11 09:58:16,844 INFO L267 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2018-04-11 09:58:16,846 INFO L267 ElimStorePlain]: Start of recursive call 1: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-04-11 09:58:16,846 INFO L202 ElimStorePlain]: Needed 2 recursive calls to eliminate 1 variables, input treesize:14, output treesize:8 [2018-04-11 09:58:16,895 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 09:58:16,897 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 09:58:16,897 INFO L267 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 1 xjuncts. [2018-04-11 09:58:16,898 INFO L267 ElimStorePlain]: Start of recursive call 2: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-04-11 09:58:16,903 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 09:58:16,903 INFO L202 ElimStorePlain]: Needed 3 recursive calls to eliminate 2 variables, input treesize:29, output treesize:25 [2018-04-11 09:58:16,941 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 09:58:16,943 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 09:58:16,943 INFO L267 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 1 xjuncts. [2018-04-11 09:58:16,946 INFO L267 ElimStorePlain]: Start of recursive call 2: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-04-11 09:58:16,952 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 09:58:16,953 INFO L202 ElimStorePlain]: Needed 3 recursive calls to eliminate 5 variables, input treesize:39, output treesize:35 [2018-04-11 09:58:19,675 WARN L148 SmtUtils]: Spent 462ms on a formula simplification that was a NOOP. DAG size: 46 [2018-04-11 09:58:19,746 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 09:58:19,749 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 09:58:19,750 INFO L267 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 1 xjuncts. [2018-04-11 09:58:19,805 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 09:58:19,806 INFO L267 ElimStorePlain]: Start of recursive call 4: End of recursive call: and 4 xjuncts. [2018-04-11 09:58:19,892 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 09:58:19,893 INFO L267 ElimStorePlain]: Start of recursive call 5: End of recursive call: and 2 xjuncts. [2018-04-11 09:58:19,952 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 09:58:19,952 INFO L267 ElimStorePlain]: Start of recursive call 6: End of recursive call: and 1 xjuncts. [2018-04-11 09:58:19,953 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 09:58:19,953 INFO L267 ElimStorePlain]: Start of recursive call 7: End of recursive call: and 1 xjuncts. [2018-04-11 09:58:20,003 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 09:58:20,003 INFO L267 ElimStorePlain]: Start of recursive call 8: End of recursive call: and 1 xjuncts. [2018-04-11 09:58:20,056 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 09:58:20,057 INFO L267 ElimStorePlain]: Start of recursive call 9: End of recursive call: and 4 xjuncts. [2018-04-11 09:58:20,135 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 09:58:20,135 INFO L267 ElimStorePlain]: Start of recursive call 10: End of recursive call: and 2 xjuncts. [2018-04-11 09:58:20,194 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 09:58:20,195 INFO L267 ElimStorePlain]: Start of recursive call 11: End of recursive call: and 1 xjuncts. [2018-04-11 09:58:20,196 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 31 treesize of output 23 [2018-04-11 09:58:20,196 INFO L267 ElimStorePlain]: Start of recursive call 12: End of recursive call: and 1 xjuncts. [2018-04-11 09:58:20,197 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 09:58:20,198 INFO L267 ElimStorePlain]: Start of recursive call 13: End of recursive call: and 1 xjuncts. [2018-04-11 09:58:20,233 INFO L267 ElimStorePlain]: Start of recursive call 2: 8 dim-1 vars, End of recursive call: and 7 xjuncts. [2018-04-11 09:58:20,277 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 09:58:20,277 INFO L202 ElimStorePlain]: Needed 13 recursive calls to eliminate 8 variables, input treesize:63, output treesize:66 [2018-04-11 09:58:20,345 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 09:58:20,362 INFO L320 seRefinementStrategy]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2018-04-11 09:58:20,362 INFO L335 seRefinementStrategy]: Number of different interpolants: perfect sequences [] imperfect sequences [12, 19] total 28 [2018-04-11 09:58:20,363 INFO L442 AbstractCegarLoop]: Interpolant automaton has 29 states [2018-04-11 09:58:20,363 INFO L132 InterpolantAutomaton]: Constructing interpolant automaton starting with 29 interpolants. [2018-04-11 09:58:20,363 INFO L133 InterpolantAutomaton]: CoverageRelationStatistics Valid=81, Invalid=731, Unknown=0, NotChecked=0, Total=812 [2018-04-11 09:58:20,364 INFO L87 Difference]: Start difference. First operand 57 states and 61 transitions. Second operand 29 states. [2018-04-11 09:58:22,632 WARN L151 SmtUtils]: Spent 1554ms on a formula simplification. DAG size of input: 71 DAG size of output 62 [2018-04-11 09:58:23,124 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-04-11 09:58:23,124 INFO L93 Difference]: Finished difference Result 124 states and 135 transitions. [2018-04-11 09:58:23,125 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 22 states. [2018-04-11 09:58:23,125 INFO L78 Accepts]: Start accepts. Automaton has 29 states. Word has length 33 [2018-04-11 09:58:23,125 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-04-11 09:58:23,125 INFO L225 Difference]: With dead ends: 124 [2018-04-11 09:58:23,125 INFO L226 Difference]: Without dead ends: 124 [2018-04-11 09:58:23,126 INFO L567 BasicCegarLoop]: 0 DeclaredPredicates, 63 GetRequests, 18 SyntacticMatches, 0 SemanticMatches, 45 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 423 ImplicationChecksByTransitivity, 5.3s TimeCoverageRelationStatistics Valid=331, Invalid=1831, Unknown=0, NotChecked=0, Total=2162 [2018-04-11 09:58:23,126 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 124 states. [2018-04-11 09:58:23,129 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 124 to 87. [2018-04-11 09:58:23,129 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 87 states. [2018-04-11 09:58:23,129 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 87 states to 87 states and 98 transitions. [2018-04-11 09:58:23,129 INFO L78 Accepts]: Start accepts. Automaton has 87 states and 98 transitions. Word has length 33 [2018-04-11 09:58:23,129 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-04-11 09:58:23,129 INFO L459 AbstractCegarLoop]: Abstraction has 87 states and 98 transitions. [2018-04-11 09:58:23,130 INFO L460 AbstractCegarLoop]: Interpolant automaton has 29 states. [2018-04-11 09:58:23,130 INFO L276 IsEmpty]: Start isEmpty. Operand 87 states and 98 transitions. [2018-04-11 09:58:23,130 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 38 [2018-04-11 09:58:23,130 INFO L347 BasicCegarLoop]: Found error trace [2018-04-11 09:58:23,131 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 09:58:23,131 INFO L408 AbstractCegarLoop]: === Iteration 16 === [mainErr3RequiresViolation, mainErr1RequiresViolation, mainErr2RequiresViolation, mainErr4EnsuresViolationMEMORY_LEAK, mainErr0RequiresViolation, cstrspnErr7RequiresViolation, cstrspnErr5RequiresViolation, cstrspnErr1RequiresViolation, cstrspnErr0RequiresViolation, cstrspnErr6RequiresViolation, cstrspnErr8RequiresViolation, cstrspnErr2RequiresViolation, cstrspnErr4RequiresViolation, cstrspnErr3RequiresViolation, cstrspnErr9RequiresViolation]=== [2018-04-11 09:58:23,131 INFO L82 PathProgramCache]: Analyzing trace with hash -670234678, now seen corresponding path program 2 times [2018-04-11 09:58:23,131 INFO L213 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-04-11 09:58:23,131 INFO L68 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-04-11 09:58:23,132 INFO L119 rtionOrderModulation]: Craig nested/tree interpolation forces the following order [2018-04-11 09:58:23,132 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-04-11 09:58:23,132 INFO L119 rtionOrderModulation]: Craig nested/tree interpolation forces the following order [2018-04-11 09:58:23,144 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-04-11 09:58:23,144 WARN L137 erpolLogProxyWrapper]: Using partial proofs (cut at CNF-level). Set option :produce-proofs to true to get complete proofs. [2018-04-11 09:58:23,445 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 09:58:23,446 INFO L308 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2018-04-11 09:58:23,446 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 09:58:23,451 INFO L103 rtionOrderModulation]: Keeping assertion order OUTSIDE_LOOP_FIRST1 [2018-04-11 09:58:23,467 INFO L242 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2018-04-11 09:58:23,467 INFO L243 tOrderPrioritization]: Conjunction of SSA is unsat [2018-04-11 09:58:23,470 INFO L270 TraceCheckSpWp]: Computing forward predicates... [2018-04-11 09:58:23,478 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 09:58:23,478 INFO L267 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2018-04-11 09:58:23,481 INFO L267 ElimStorePlain]: Start of recursive call 1: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-04-11 09:58:23,481 INFO L202 ElimStorePlain]: Needed 2 recursive calls to eliminate 1 variables, input treesize:10, output treesize:9 [2018-04-11 09:58:23,507 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 09:58:23,508 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 09:58:23,508 INFO L267 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 1 xjuncts. [2018-04-11 09:58:23,509 INFO L267 ElimStorePlain]: Start of recursive call 2: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-04-11 09:58:23,513 INFO L267 ElimStorePlain]: Start of recursive call 1: 1 dim-2 vars, End of recursive call: and 1 xjuncts. [2018-04-11 09:58:23,513 INFO L202 ElimStorePlain]: Needed 3 recursive calls to eliminate 1 variables, input treesize:23, output treesize:19 [2018-04-11 09:58:23,631 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 09:58:23,637 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 09:58:23,637 INFO L267 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 2 xjuncts. [2018-04-11 09:58:23,658 INFO L267 ElimStorePlain]: Start of recursive call 2: 1 dim-1 vars, End of recursive call: and 2 xjuncts. [2018-04-11 09:58:23,665 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 09:58:23,665 INFO L202 ElimStorePlain]: Needed 3 recursive calls to eliminate 2 variables, input treesize:31, output treesize:33 [2018-04-11 09:58:23,780 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 09:58:23,798 INFO L320 seRefinementStrategy]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2018-04-11 09:58:23,798 INFO L335 seRefinementStrategy]: Number of different interpolants: perfect sequences [] imperfect sequences [12, 13] total 23 [2018-04-11 09:58:23,798 INFO L442 AbstractCegarLoop]: Interpolant automaton has 24 states [2018-04-11 09:58:23,798 INFO L132 InterpolantAutomaton]: Constructing interpolant automaton starting with 24 interpolants. [2018-04-11 09:58:23,799 INFO L133 InterpolantAutomaton]: CoverageRelationStatistics Valid=62, Invalid=490, Unknown=0, NotChecked=0, Total=552 [2018-04-11 09:58:23,799 INFO L87 Difference]: Start difference. First operand 87 states and 98 transitions. Second operand 24 states. [2018-04-11 09:58:24,560 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-04-11 09:58:24,560 INFO L93 Difference]: Finished difference Result 108 states and 115 transitions. [2018-04-11 09:58:24,560 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 16 states. [2018-04-11 09:58:24,560 INFO L78 Accepts]: Start accepts. Automaton has 24 states. Word has length 37 [2018-04-11 09:58:24,560 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-04-11 09:58:24,561 INFO L225 Difference]: With dead ends: 108 [2018-04-11 09:58:24,561 INFO L226 Difference]: Without dead ends: 106 [2018-04-11 09:58:24,562 INFO L567 BasicCegarLoop]: 0 DeclaredPredicates, 62 GetRequests, 26 SyntacticMatches, 1 SemanticMatches, 35 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 134 ImplicationChecksByTransitivity, 1.0s TimeCoverageRelationStatistics Valid=218, Invalid=1114, Unknown=0, NotChecked=0, Total=1332 [2018-04-11 09:58:24,562 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 106 states. [2018-04-11 09:58:24,563 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 106 to 52. [2018-04-11 09:58:24,563 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 52 states. [2018-04-11 09:58:24,563 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 52 states to 52 states and 54 transitions. [2018-04-11 09:58:24,563 INFO L78 Accepts]: Start accepts. Automaton has 52 states and 54 transitions. Word has length 37 [2018-04-11 09:58:24,563 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-04-11 09:58:24,563 INFO L459 AbstractCegarLoop]: Abstraction has 52 states and 54 transitions. [2018-04-11 09:58:24,563 INFO L460 AbstractCegarLoop]: Interpolant automaton has 24 states. [2018-04-11 09:58:24,563 INFO L276 IsEmpty]: Start isEmpty. Operand 52 states and 54 transitions. [2018-04-11 09:58:24,564 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 49 [2018-04-11 09:58:24,564 INFO L347 BasicCegarLoop]: Found error trace [2018-04-11 09:58:24,564 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 09:58:24,564 INFO L408 AbstractCegarLoop]: === Iteration 17 === [mainErr3RequiresViolation, mainErr1RequiresViolation, mainErr2RequiresViolation, mainErr4EnsuresViolationMEMORY_LEAK, mainErr0RequiresViolation, cstrspnErr7RequiresViolation, cstrspnErr5RequiresViolation, cstrspnErr1RequiresViolation, cstrspnErr0RequiresViolation, cstrspnErr6RequiresViolation, cstrspnErr8RequiresViolation, cstrspnErr2RequiresViolation, cstrspnErr4RequiresViolation, cstrspnErr3RequiresViolation, cstrspnErr9RequiresViolation]=== [2018-04-11 09:58:24,564 INFO L82 PathProgramCache]: Analyzing trace with hash 606683470, now seen corresponding path program 2 times [2018-04-11 09:58:24,564 INFO L213 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-04-11 09:58:24,564 INFO L68 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-04-11 09:58:24,565 INFO L119 rtionOrderModulation]: Craig nested/tree interpolation forces the following order [2018-04-11 09:58:24,565 INFO L101 rtionOrderModulation]: Changing assertion order to NOT_INCREMENTALLY [2018-04-11 09:58:24,565 INFO L119 rtionOrderModulation]: Craig nested/tree interpolation forces the following order [2018-04-11 09:58:24,580 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-04-11 09:58:24,581 WARN L137 erpolLogProxyWrapper]: Using partial proofs (cut at CNF-level). Set option :produce-proofs to true to get complete proofs. [2018-04-11 09:58:24,822 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 09:58:24,822 INFO L308 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2018-04-11 09:58:24,855 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 09:58:24,860 INFO L103 rtionOrderModulation]: Keeping assertion order OUTSIDE_LOOP_FIRST1 [2018-04-11 09:58:24,879 INFO L242 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2018-04-11 09:58:24,879 INFO L243 tOrderPrioritization]: Conjunction of SSA is unsat [2018-04-11 09:58:24,887 INFO L270 TraceCheckSpWp]: Computing forward predicates... [2018-04-11 09:58:24,890 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 09:58:24,890 INFO L267 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2018-04-11 09:58:24,896 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 09:58:24,896 INFO L267 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 1 xjuncts. [2018-04-11 09:58:24,899 INFO L267 ElimStorePlain]: Start of recursive call 1: 2 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-04-11 09:58:24,899 INFO L202 ElimStorePlain]: Needed 3 recursive calls to eliminate 2 variables, input treesize:16, output treesize:14 [2018-04-11 09:58:24,940 INFO L700 Elim1Store]: detected not equals via solver [2018-04-11 09:58:24,941 INFO L700 Elim1Store]: detected not equals via solver [2018-04-11 09:58:24,941 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 09:58:24,941 INFO L267 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2018-04-11 09:58:24,948 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 09:58:24,948 INFO L267 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 1 xjuncts. [2018-04-11 09:58:24,952 INFO L267 ElimStorePlain]: Start of recursive call 1: 2 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-04-11 09:58:24,952 INFO L202 ElimStorePlain]: Needed 3 recursive calls to eliminate 2 variables, input treesize:28, output treesize:21 [2018-04-11 09:58:25,002 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 09:58:25,003 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 09:58:25,003 INFO L267 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 1 xjuncts. [2018-04-11 09:58:25,004 INFO L267 ElimStorePlain]: Start of recursive call 2: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-04-11 09:58:25,009 INFO L267 ElimStorePlain]: Start of recursive call 1: 1 dim-2 vars, End of recursive call: and 1 xjuncts. [2018-04-11 09:58:25,010 INFO L202 ElimStorePlain]: Needed 3 recursive calls to eliminate 1 variables, input treesize:35, output treesize:31 [2018-04-11 09:58:25,031 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 09:58:25,032 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 09:58:25,033 INFO L267 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 1 xjuncts. [2018-04-11 09:58:25,035 INFO L267 ElimStorePlain]: Start of recursive call 2: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-04-11 09:58:25,040 INFO L267 ElimStorePlain]: Start of recursive call 1: 1 dim-2 vars, End of recursive call: and 1 xjuncts. [2018-04-11 09:58:25,040 INFO L202 ElimStorePlain]: Needed 3 recursive calls to eliminate 1 variables, input treesize:42, output treesize:38 [2018-04-11 09:58:25,459 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 09:58:25,461 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 09:58:25,461 INFO L267 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 1 xjuncts. [2018-04-11 09:58:25,470 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 09:58:25,470 INFO L267 ElimStorePlain]: Start of recursive call 4: End of recursive call: and 2 xjuncts. [2018-04-11 09:58:25,474 INFO L267 ElimStorePlain]: Start of recursive call 2: 2 dim-1 vars, End of recursive call: and 2 xjuncts. [2018-04-11 09:58:25,492 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 09:58:25,492 INFO L202 ElimStorePlain]: Needed 4 recursive calls to eliminate 3 variables, input treesize:68, output treesize:81 [2018-04-11 09:58:25,633 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 09:58:25,650 INFO L320 seRefinementStrategy]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2018-04-11 09:58:25,651 INFO L335 seRefinementStrategy]: Number of different interpolants: perfect sequences [] imperfect sequences [12, 21] total 32 [2018-04-11 09:58:25,651 INFO L442 AbstractCegarLoop]: Interpolant automaton has 33 states [2018-04-11 09:58:25,651 INFO L132 InterpolantAutomaton]: Constructing interpolant automaton starting with 33 interpolants. [2018-04-11 09:58:25,651 INFO L133 InterpolantAutomaton]: CoverageRelationStatistics Valid=81, Invalid=975, Unknown=0, NotChecked=0, Total=1056 [2018-04-11 09:58:25,651 INFO L87 Difference]: Start difference. First operand 52 states and 54 transitions. Second operand 33 states. [2018-04-11 09:58:29,371 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-04-11 09:58:29,371 INFO L93 Difference]: Finished difference Result 123 states and 131 transitions. [2018-04-11 09:58:29,371 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 49 states. [2018-04-11 09:58:29,371 INFO L78 Accepts]: Start accepts. Automaton has 33 states. Word has length 48 [2018-04-11 09:58:29,371 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-04-11 09:58:29,372 INFO L225 Difference]: With dead ends: 123 [2018-04-11 09:58:29,372 INFO L226 Difference]: Without dead ends: 123 [2018-04-11 09:58:29,373 INFO L567 BasicCegarLoop]: 0 DeclaredPredicates, 108 GetRequests, 30 SyntacticMatches, 1 SemanticMatches, 77 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1360 ImplicationChecksByTransitivity, 3.8s TimeCoverageRelationStatistics Valid=840, Invalid=5322, Unknown=0, NotChecked=0, Total=6162 [2018-04-11 09:58:29,373 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 123 states. [2018-04-11 09:58:29,374 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 123 to 71. [2018-04-11 09:58:29,374 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 71 states. [2018-04-11 09:58:29,374 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 71 states to 71 states and 75 transitions. [2018-04-11 09:58:29,374 INFO L78 Accepts]: Start accepts. Automaton has 71 states and 75 transitions. Word has length 48 [2018-04-11 09:58:29,374 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-04-11 09:58:29,374 INFO L459 AbstractCegarLoop]: Abstraction has 71 states and 75 transitions. [2018-04-11 09:58:29,374 INFO L460 AbstractCegarLoop]: Interpolant automaton has 33 states. [2018-04-11 09:58:29,374 INFO L276 IsEmpty]: Start isEmpty. Operand 71 states and 75 transitions. [2018-04-11 09:58:29,375 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 71 [2018-04-11 09:58:29,375 INFO L347 BasicCegarLoop]: Found error trace [2018-04-11 09:58:29,375 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 09:58:29,375 INFO L408 AbstractCegarLoop]: === Iteration 18 === [mainErr3RequiresViolation, mainErr1RequiresViolation, mainErr2RequiresViolation, mainErr4EnsuresViolationMEMORY_LEAK, mainErr0RequiresViolation, cstrspnErr7RequiresViolation, cstrspnErr5RequiresViolation, cstrspnErr1RequiresViolation, cstrspnErr0RequiresViolation, cstrspnErr6RequiresViolation, cstrspnErr8RequiresViolation, cstrspnErr2RequiresViolation, cstrspnErr4RequiresViolation, cstrspnErr3RequiresViolation, cstrspnErr9RequiresViolation]=== [2018-04-11 09:58:29,375 INFO L82 PathProgramCache]: Analyzing trace with hash 861802640, now seen corresponding path program 1 times [2018-04-11 09:58:29,376 INFO L213 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-04-11 09:58:29,376 INFO L68 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-04-11 09:58:29,376 INFO L119 rtionOrderModulation]: Craig nested/tree interpolation forces the following order [2018-04-11 09:58:29,376 INFO L101 rtionOrderModulation]: Changing assertion order to NOT_INCREMENTALLY [2018-04-11 09:58:29,376 INFO L119 rtionOrderModulation]: Craig nested/tree interpolation forces the following order [2018-04-11 09:58:29,392 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-04-11 09:58:29,392 WARN L137 erpolLogProxyWrapper]: Using partial proofs (cut at CNF-level). Set option :produce-proofs to true to get complete proofs. [2018-04-11 09:58:29,571 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 09:58:29,571 INFO L308 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2018-04-11 09:58:29,571 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 09:58:29,577 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-04-11 09:58:29,596 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-04-11 09:58:29,599 INFO L270 TraceCheckSpWp]: Computing forward predicates... [2018-04-11 09:58:29,601 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 09:58:29,601 INFO L267 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2018-04-11 09:58:29,605 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 09:58:29,605 INFO L267 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 1 xjuncts. [2018-04-11 09:58:29,608 INFO L267 ElimStorePlain]: Start of recursive call 1: 2 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-04-11 09:58:29,608 INFO L202 ElimStorePlain]: Needed 3 recursive calls to eliminate 2 variables, input treesize:16, output treesize:14 [2018-04-11 09:58:29,630 INFO L700 Elim1Store]: detected not equals via solver [2018-04-11 09:58:29,630 INFO L700 Elim1Store]: detected not equals via solver [2018-04-11 09:58:29,631 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 09:58:29,631 INFO L267 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2018-04-11 09:58:29,636 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 09:58:29,636 INFO L267 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 1 xjuncts. [2018-04-11 09:58:29,639 INFO L267 ElimStorePlain]: Start of recursive call 1: 2 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-04-11 09:58:29,639 INFO L202 ElimStorePlain]: Needed 3 recursive calls to eliminate 2 variables, input treesize:25, output treesize:18 [2018-04-11 09:58:29,666 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 09:58:29,667 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 09:58:29,667 INFO L267 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 1 xjuncts. [2018-04-11 09:58:29,668 INFO L267 ElimStorePlain]: Start of recursive call 2: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-04-11 09:58:29,674 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 09:58:29,674 INFO L202 ElimStorePlain]: Needed 3 recursive calls to eliminate 2 variables, input treesize:32, output treesize:28 [2018-04-11 09:58:29,701 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 09:58:29,702 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 09:58:29,702 INFO L267 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 1 xjuncts. [2018-04-11 09:58:29,705 INFO L267 ElimStorePlain]: Start of recursive call 2: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-04-11 09:58:29,710 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 09:58:29,710 INFO L202 ElimStorePlain]: Needed 3 recursive calls to eliminate 4 variables, input treesize:39, output treesize:35 [2018-04-11 09:58:32,646 WARN L148 SmtUtils]: Spent 2048ms on a formula simplification that was a NOOP. DAG size: 46 [2018-04-11 09:58:32,730 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 09:58:32,734 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 09:58:32,734 INFO L267 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 1 xjuncts. [2018-04-11 09:58:32,794 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 09:58:32,795 INFO L267 ElimStorePlain]: Start of recursive call 4: End of recursive call: and 1 xjuncts. [2018-04-11 09:58:32,833 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 09:58:32,834 INFO L267 ElimStorePlain]: Start of recursive call 5: End of recursive call: and 2 xjuncts. [2018-04-11 09:58:32,883 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 09:58:32,884 INFO L267 ElimStorePlain]: Start of recursive call 6: End of recursive call: and 4 xjuncts. [2018-04-11 09:58:32,946 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 09:58:32,947 INFO L267 ElimStorePlain]: Start of recursive call 7: End of recursive call: and 1 xjuncts. [2018-04-11 09:58:33,008 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 09:58:33,008 INFO L267 ElimStorePlain]: Start of recursive call 8: End of recursive call: and 2 xjuncts. [2018-04-11 09:58:33,074 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 09:58:33,075 INFO L267 ElimStorePlain]: Start of recursive call 9: End of recursive call: and 4 xjuncts. [2018-04-11 09:58:33,149 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 09:58:33,149 INFO L267 ElimStorePlain]: Start of recursive call 10: End of recursive call: and 1 xjuncts. [2018-04-11 09:58:33,151 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 09:58:33,152 INFO L267 ElimStorePlain]: Start of recursive call 11: End of recursive call: and 1 xjuncts. [2018-04-11 09:58:33,203 INFO L267 ElimStorePlain]: Start of recursive call 2: 8 dim-1 vars, End of recursive call: and 7 xjuncts. [2018-04-11 09:58:33,249 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 09:58:33,249 INFO L202 ElimStorePlain]: Needed 11 recursive calls to eliminate 6 variables, input treesize:67, output treesize:78 [2018-04-11 09:58:33,362 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 09:58:33,391 INFO L320 seRefinementStrategy]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2018-04-11 09:58:33,391 INFO L335 seRefinementStrategy]: Number of different interpolants: perfect sequences [] imperfect sequences [12, 21] total 32 [2018-04-11 09:58:33,391 INFO L442 AbstractCegarLoop]: Interpolant automaton has 33 states [2018-04-11 09:58:33,392 INFO L132 InterpolantAutomaton]: Constructing interpolant automaton starting with 33 interpolants. [2018-04-11 09:58:33,392 INFO L133 InterpolantAutomaton]: CoverageRelationStatistics Valid=139, Invalid=917, Unknown=0, NotChecked=0, Total=1056 [2018-04-11 09:58:33,392 INFO L87 Difference]: Start difference. First operand 71 states and 75 transitions. Second operand 33 states. [2018-04-11 09:58:34,996 WARN L151 SmtUtils]: Spent 102ms on a formula simplification. DAG size of input: 51 DAG size of output 46 [2018-04-11 09:58:35,516 WARN L151 SmtUtils]: Spent 101ms on a formula simplification. DAG size of input: 56 DAG size of output 49 [2018-04-11 09:58:39,705 WARN L151 SmtUtils]: Spent 4129ms on a formula simplification. DAG size of input: 63 DAG size of output 56 [2018-04-11 09:58:39,901 WARN L151 SmtUtils]: Spent 141ms on a formula simplification. DAG size of input: 63 DAG size of output 52 [2018-04-11 09:58:40,292 WARN L151 SmtUtils]: Spent 134ms on a formula simplification. DAG size of input: 58 DAG size of output 51 [2018-04-11 09:58:40,928 WARN L151 SmtUtils]: Spent 106ms on a formula simplification. DAG size of input: 47 DAG size of output 41 [2018-04-11 09:58:44,266 WARN L151 SmtUtils]: Spent 2708ms on a formula simplification. DAG size of input: 65 DAG size of output 57 [2018-04-11 09:58:44,486 WARN L151 SmtUtils]: Spent 152ms on a formula simplification. DAG size of input: 65 DAG size of output 53 [2018-04-11 09:58:44,966 WARN L151 SmtUtils]: Spent 107ms on a formula simplification. DAG size of input: 65 DAG size of output 53 [2018-04-11 09:58:45,002 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-04-11 09:58:45,002 INFO L93 Difference]: Finished difference Result 98 states and 104 transitions. [2018-04-11 09:58:45,002 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 37 states. [2018-04-11 09:58:45,002 INFO L78 Accepts]: Start accepts. Automaton has 33 states. Word has length 70 [2018-04-11 09:58:45,003 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-04-11 09:58:45,003 INFO L225 Difference]: With dead ends: 98 [2018-04-11 09:58:45,003 INFO L226 Difference]: Without dead ends: 0 [2018-04-11 09:58:45,004 INFO L567 BasicCegarLoop]: 0 DeclaredPredicates, 118 GetRequests, 54 SyntacticMatches, 0 SemanticMatches, 64 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 553 ImplicationChecksByTransitivity, 13.5s TimeCoverageRelationStatistics Valid=892, Invalid=3398, Unknown=0, NotChecked=0, Total=4290 [2018-04-11 09:58:45,004 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2018-04-11 09:58:45,004 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2018-04-11 09:58:45,004 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 0 states. [2018-04-11 09:58:45,004 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2018-04-11 09:58:45,004 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 70 [2018-04-11 09:58:45,004 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-04-11 09:58:45,005 INFO L459 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2018-04-11 09:58:45,005 INFO L460 AbstractCegarLoop]: Interpolant automaton has 33 states. [2018-04-11 09:58:45,005 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2018-04-11 09:58:45,005 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2018-04-11 09:58:45,008 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 11.04 09:58:45 BoogieIcfgContainer [2018-04-11 09:58:45,008 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2018-04-11 09:58:45,008 INFO L168 Benchmark]: Toolchain (without parser) took 32827.37 ms. Allocated memory was 401.6 MB in the beginning and 841.5 MB in the end (delta: 439.9 MB). Free memory was 335.4 MB in the beginning and 484.6 MB in the end (delta: -149.2 MB). Peak memory consumption was 290.7 MB. Max. memory is 5.3 GB. [2018-04-11 09:58:45,009 INFO L168 Benchmark]: CDTParser took 0.17 ms. Allocated memory is still 401.6 MB. Free memory is still 360.7 MB. There was no memory consumed. Max. memory is 5.3 GB. [2018-04-11 09:58:45,009 INFO L168 Benchmark]: CACSL2BoogieTranslator took 237.29 ms. Allocated memory is still 401.6 MB. Free memory was 333.5 MB in the beginning and 309.7 MB in the end (delta: 23.8 MB). Peak memory consumption was 23.8 MB. Max. memory is 5.3 GB. [2018-04-11 09:58:45,010 INFO L168 Benchmark]: Boogie Preprocessor took 36.13 ms. Allocated memory is still 401.6 MB. Free memory was 309.7 MB in the beginning and 307.0 MB in the end (delta: 2.6 MB). Peak memory consumption was 2.6 MB. Max. memory is 5.3 GB. [2018-04-11 09:58:45,010 INFO L168 Benchmark]: RCFGBuilder took 358.14 ms. Allocated memory was 401.6 MB in the beginning and 585.1 MB in the end (delta: 183.5 MB). Free memory was 307.0 MB in the beginning and 519.2 MB in the end (delta: -212.2 MB). Peak memory consumption was 23.5 MB. Max. memory is 5.3 GB. [2018-04-11 09:58:45,010 INFO L168 Benchmark]: TraceAbstraction took 32193.02 ms. Allocated memory was 585.1 MB in the beginning and 841.5 MB in the end (delta: 256.4 MB). Free memory was 519.2 MB in the beginning and 484.6 MB in the end (delta: 34.6 MB). Peak memory consumption was 291.0 MB. Max. memory is 5.3 GB. [2018-04-11 09:58:45,011 INFO L344 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.17 ms. Allocated memory is still 401.6 MB. Free memory is still 360.7 MB. There was no memory consumed. Max. memory is 5.3 GB. * CACSL2BoogieTranslator took 237.29 ms. Allocated memory is still 401.6 MB. Free memory was 333.5 MB in the beginning and 309.7 MB in the end (delta: 23.8 MB). Peak memory consumption was 23.8 MB. Max. memory is 5.3 GB. * Boogie Preprocessor took 36.13 ms. Allocated memory is still 401.6 MB. Free memory was 309.7 MB in the beginning and 307.0 MB in the end (delta: 2.6 MB). Peak memory consumption was 2.6 MB. Max. memory is 5.3 GB. * RCFGBuilder took 358.14 ms. Allocated memory was 401.6 MB in the beginning and 585.1 MB in the end (delta: 183.5 MB). Free memory was 307.0 MB in the beginning and 519.2 MB in the end (delta: -212.2 MB). Peak memory consumption was 23.5 MB. Max. memory is 5.3 GB. * TraceAbstraction took 32193.02 ms. Allocated memory was 585.1 MB in the beginning and 841.5 MB in the end (delta: 256.4 MB). Free memory was 519.2 MB in the beginning and 484.6 MB in the end (delta: 34.6 MB). Peak memory consumption was 291.0 MB. 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, 32.1s OverallTime, 18 OverallIterations, 4 TraceHistogramMax, 21.0s AutomataDifference, 0.0s DeadEndRemovalTime, 0.0s HoareAnnotationTime, HoareTripleCheckerStatistics: 666 SDtfs, 2013 SDslu, 3093 SDs, 0 SdLazy, 4035 SolverSat, 394 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 2.9s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 523 GetRequests, 172 SyntacticMatches, 3 SemanticMatches, 348 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2690 ImplicationChecksByTransitivity, 25.7s 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, 10.4s 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_09-58-45-017.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_09-58-45-017.csv Received shutdown request...