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/cstrncpy-alloca_true-valid-memsafety_true-termination.i -------------------------------------------------------------------------------- This is Ultimate 0.1.23-666feb3-m [2018-04-11 20:31:20,588 INFO L170 SettingsManager]: Resetting all preferences to default values... [2018-04-11 20:31:20,589 INFO L174 SettingsManager]: Resetting UltimateCore preferences to default values [2018-04-11 20:31:20,601 INFO L177 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2018-04-11 20:31:20,601 INFO L174 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2018-04-11 20:31:20,602 INFO L174 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2018-04-11 20:31:20,602 INFO L174 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2018-04-11 20:31:20,604 INFO L174 SettingsManager]: Resetting LassoRanker preferences to default values [2018-04-11 20:31:20,605 INFO L174 SettingsManager]: Resetting Reaching Definitions preferences to default values [2018-04-11 20:31:20,606 INFO L174 SettingsManager]: Resetting SyntaxChecker preferences to default values [2018-04-11 20:31:20,607 INFO L177 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2018-04-11 20:31:20,607 INFO L174 SettingsManager]: Resetting LTL2Aut preferences to default values [2018-04-11 20:31:20,608 INFO L174 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2018-04-11 20:31:20,608 INFO L174 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2018-04-11 20:31:20,609 INFO L174 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2018-04-11 20:31:20,611 INFO L174 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2018-04-11 20:31:20,612 INFO L174 SettingsManager]: Resetting CodeCheck preferences to default values [2018-04-11 20:31:20,613 INFO L174 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2018-04-11 20:31:20,614 INFO L174 SettingsManager]: Resetting RCFGBuilder preferences to default values [2018-04-11 20:31:20,615 INFO L174 SettingsManager]: Resetting TraceAbstraction preferences to default values [2018-04-11 20:31:20,616 INFO L177 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... 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[2018-04-11 20:31:20,621 INFO L98 SettingsManager]: Beginning loading settings from /home/ultimate/work/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/settings/cade18-smtinterpol/svcomp-DerefFreeMemtrack-32bit-Automizer_Camel.epf [2018-04-11 20:31:20,642 INFO L110 SettingsManager]: Loading preferences was successful [2018-04-11 20:31:20,642 INFO L112 SettingsManager]: Preferences different from defaults after loading the file: [2018-04-11 20:31:20,643 INFO L131 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2018-04-11 20:31:20,643 INFO L133 SettingsManager]: * Create parallel compositions if possible=false [2018-04-11 20:31:20,643 INFO L133 SettingsManager]: * Use SBE=true [2018-04-11 20:31:20,643 INFO L131 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2018-04-11 20:31:20,643 INFO L133 SettingsManager]: * sizeof long=4 [2018-04-11 20:31:20,644 INFO L133 SettingsManager]: * Check unreachability of error function in SV-COMP mode=false [2018-04-11 20:31:20,644 INFO L133 SettingsManager]: * Overapproximate operations on floating types=true [2018-04-11 20:31:20,644 INFO L133 SettingsManager]: * sizeof POINTER=4 [2018-04-11 20:31:20,644 INFO L133 SettingsManager]: * Check division by zero=IGNORE [2018-04-11 20:31:20,644 INFO L133 SettingsManager]: * Check for the main procedure if all allocated memory was freed=true [2018-04-11 20:31:20,644 INFO L133 SettingsManager]: * Bitprecise bitfields=true [2018-04-11 20:31:20,644 INFO L133 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2018-04-11 20:31:20,644 INFO L133 SettingsManager]: * sizeof long double=12 [2018-04-11 20:31:20,644 INFO L131 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2018-04-11 20:31:20,644 INFO L133 SettingsManager]: * Size of a code block=SequenceOfStatements [2018-04-11 20:31:20,644 INFO L133 SettingsManager]: * To the following directory=./dump/ [2018-04-11 20:31:20,645 INFO L133 SettingsManager]: * SMT solver=External_DefaultMode [2018-04-11 20:31:20,645 INFO L133 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2018-04-11 20:31:20,645 INFO L131 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2018-04-11 20:31:20,645 INFO L133 SettingsManager]: * Interpolant automaton=TWOTRACK [2018-04-11 20:31:20,645 INFO L133 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2018-04-11 20:31:20,645 INFO L133 SettingsManager]: * Trace refinement strategy=CAMEL Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Bitprecise bitfields -> false [2018-04-11 20:31:20,670 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2018-04-11 20:31:20,677 INFO L266 ainManager$Toolchain]: [Toolchain 1]: Parser(s) successfully (re)initialized [2018-04-11 20:31:20,679 INFO L222 ainManager$Toolchain]: [Toolchain 1]: Toolchain data selected. [2018-04-11 20:31:20,680 INFO L271 PluginConnector]: Initializing CDTParser... [2018-04-11 20:31:20,680 INFO L276 PluginConnector]: CDTParser initialized [2018-04-11 20:31:20,681 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /home/ultimate/work/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/array-memsafety/cstrncpy-alloca_true-valid-memsafety_true-termination.i [2018-04-11 20:31:21,051 INFO L225 CDTParser]: Created temporary CDT project at /home/ultimate/work/ultimate/releaseScripts/default/UAutomizer-linux/data/FLAGa0ec65776 [2018-04-11 20:31:21,174 INFO L287 CDTParser]: IsIndexed: true [2018-04-11 20:31:21,174 INFO L288 CDTParser]: Found 1 translation units. [2018-04-11 20:31:21,174 INFO L168 CDTParser]: Scanning cstrncpy-alloca_true-valid-memsafety_true-termination.i [2018-04-11 20:31:21,181 INFO L210 ultiparseSymbolTable]: Include resolver: [2018-04-11 20:31:21,182 INFO L215 ultiparseSymbolTable]: [2018-04-11 20:31:21,182 INFO L218 ultiparseSymbolTable]: Function table: [2018-04-11 20:31:21,182 INFO L221 ultiparseSymbolTable]: Function definition of __U_MULTI_fcstrncpy_alloca_true_valid_memsafety_true_termination_i__ ('') in cstrncpy-alloca_true-valid-memsafety_true-termination.i [2018-04-11 20:31:21,182 INFO L221 ultiparseSymbolTable]: Function definition of __U_MULTI_fcstrncpy_alloca_true_valid_memsafety_true_termination_i____bswap_32 ('__bswap_32') in cstrncpy-alloca_true-valid-memsafety_true-termination.i [2018-04-11 20:31:21,182 INFO L221 ultiparseSymbolTable]: Function definition of null ('main') in cstrncpy-alloca_true-valid-memsafety_true-termination.i [2018-04-11 20:31:21,182 INFO L221 ultiparseSymbolTable]: Function definition 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cstrncpy-alloca_true-valid-memsafety_true-termination.i [2018-04-11 20:31:21,186 INFO L230 ultiparseSymbolTable]: Global variable declaration of __U_MULTI_fcstrncpy_alloca_true_valid_memsafety_true_termination_i__u_quad_t in cstrncpy-alloca_true-valid-memsafety_true-termination.i [2018-04-11 20:31:21,186 INFO L230 ultiparseSymbolTable]: Global variable declaration of __U_MULTI_fcstrncpy_alloca_true_valid_memsafety_true_termination_i____uid_t in cstrncpy-alloca_true-valid-memsafety_true-termination.i [2018-04-11 20:31:21,186 INFO L230 ultiparseSymbolTable]: Global variable declaration of __U_MULTI_fcstrncpy_alloca_true_valid_memsafety_true_termination_i____fsword_t in cstrncpy-alloca_true-valid-memsafety_true-termination.i [2018-04-11 20:31:21,186 INFO L230 ultiparseSymbolTable]: Global variable declaration of __U_MULTI_fcstrncpy_alloca_true_valid_memsafety_true_termination_i____blksize_t in cstrncpy-alloca_true-valid-memsafety_true-termination.i [2018-04-11 20:31:21,186 INFO L230 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__U_MULTI_fcstrncpy_alloca_true_valid_memsafety_true_termination_i____fsblkcnt_t in cstrncpy-alloca_true-valid-memsafety_true-termination.i [2018-04-11 20:31:21,187 INFO L230 ultiparseSymbolTable]: Global variable declaration of __U_MULTI_fcstrncpy_alloca_true_valid_memsafety_true_termination_i____syscall_slong_t in cstrncpy-alloca_true-valid-memsafety_true-termination.i [2018-04-11 20:31:21,187 INFO L230 ultiparseSymbolTable]: Global variable declaration of __U_MULTI_fcstrncpy_alloca_true_valid_memsafety_true_termination_i____loff_t in cstrncpy-alloca_true-valid-memsafety_true-termination.i [2018-04-11 20:31:21,188 INFO L230 ultiparseSymbolTable]: Global variable declaration of __U_MULTI_fcstrncpy_alloca_true_valid_memsafety_true_termination_i__int64_t in cstrncpy-alloca_true-valid-memsafety_true-termination.i [2018-04-11 20:31:21,188 INFO L230 ultiparseSymbolTable]: Global variable declaration of __U_MULTI_fcstrncpy_alloca_true_valid_memsafety_true_termination_i__fd_mask in cstrncpy-alloca_true-valid-memsafety_true-termination.i [2018-04-11 20:31:21,188 INFO L230 ultiparseSymbolTable]: Global variable declaration of __U_MULTI_fcstrncpy_alloca_true_valid_memsafety_true_termination_i__suseconds_t in cstrncpy-alloca_true-valid-memsafety_true-termination.i [2018-04-11 20:31:21,188 INFO L230 ultiparseSymbolTable]: Global variable declaration of __U_MULTI_fcstrncpy_alloca_true_valid_memsafety_true_termination_i__pthread_cond_t in cstrncpy-alloca_true-valid-memsafety_true-termination.i [2018-04-11 20:31:21,188 INFO L230 ultiparseSymbolTable]: Global variable declaration of __U_MULTI_fcstrncpy_alloca_true_valid_memsafety_true_termination_i__fsid_t in cstrncpy-alloca_true-valid-memsafety_true-termination.i [2018-04-11 20:31:21,188 INFO L230 ultiparseSymbolTable]: Global variable declaration of __U_MULTI_fcstrncpy_alloca_true_valid_memsafety_true_termination_i____WAIT_STATUS in cstrncpy-alloca_true-valid-memsafety_true-termination.i [2018-04-11 20:31:21,188 INFO L230 ultiparseSymbolTable]: Global variable declaration of __U_MULTI_fcstrncpy_alloca_true_valid_memsafety_true_termination_i__u_int16_t in cstrncpy-alloca_true-valid-memsafety_true-termination.i [2018-04-11 20:31:21,188 INFO L230 ultiparseSymbolTable]: Global variable declaration of __U_MULTI_fcstrncpy_alloca_true_valid_memsafety_true_termination_i__ushort in cstrncpy-alloca_true-valid-memsafety_true-termination.i [2018-04-11 20:31:21,188 INFO L230 ultiparseSymbolTable]: Global variable declaration of __U_MULTI_fcstrncpy_alloca_true_valid_memsafety_true_termination_i____blkcnt_t in cstrncpy-alloca_true-valid-memsafety_true-termination.i [2018-04-11 20:31:21,188 INFO L230 ultiparseSymbolTable]: Global variable declaration of __U_MULTI_fcstrncpy_alloca_true_valid_memsafety_true_termination_i__pthread_barrier_t in cstrncpy-alloca_true-valid-memsafety_true-termination.i [2018-04-11 20:31:21,188 INFO L230 ultiparseSymbolTable]: Global variable declaration of __U_MULTI_fcstrncpy_alloca_true_valid_memsafety_true_termination_i____clock_t in cstrncpy-alloca_true-valid-memsafety_true-termination.i [2018-04-11 20:31:21,188 INFO L230 ultiparseSymbolTable]: Global variable declaration of __U_MULTI_fcstrncpy_alloca_true_valid_memsafety_true_termination_i____u_quad_t in cstrncpy-alloca_true-valid-memsafety_true-termination.i [2018-04-11 20:31:21,188 INFO L230 ultiparseSymbolTable]: Global variable declaration of __U_MULTI_fcstrncpy_alloca_true_valid_memsafety_true_termination_i____ino64_t in cstrncpy-alloca_true-valid-memsafety_true-termination.i [2018-04-11 20:31:21,188 INFO L230 ultiparseSymbolTable]: Global variable declaration of __U_MULTI_fcstrncpy_alloca_true_valid_memsafety_true_termination_i____daddr_t in cstrncpy-alloca_true-valid-memsafety_true-termination.i [2018-04-11 20:31:21,188 INFO L230 ultiparseSymbolTable]: Global variable declaration of __U_MULTI_fcstrncpy_alloca_true_valid_memsafety_true_termination_i____key_t in cstrncpy-alloca_true-valid-memsafety_true-termination.i [2018-04-11 20:31:21,188 INFO L230 ultiparseSymbolTable]: Global variable declaration of __U_MULTI_fcstrncpy_alloca_true_valid_memsafety_true_termination_i__pthread_spinlock_t in cstrncpy-alloca_true-valid-memsafety_true-termination.i [2018-04-11 20:31:21,188 INFO L230 ultiparseSymbolTable]: Global variable declaration of __U_MULTI_fcstrncpy_alloca_true_valid_memsafety_true_termination_i____uint8_t in cstrncpy-alloca_true-valid-memsafety_true-termination.i [2018-04-11 20:31:21,188 INFO L230 ultiparseSymbolTable]: Global variable declaration of __U_MULTI_fcstrncpy_alloca_true_valid_memsafety_true_termination_i____gid_t in cstrncpy-alloca_true-valid-memsafety_true-termination.i [2018-04-11 20:31:21,188 INFO L230 ultiparseSymbolTable]: Global variable declaration of __U_MULTI_fcstrncpy_alloca_true_valid_memsafety_true_termination_i____quad_t in cstrncpy-alloca_true-valid-memsafety_true-termination.i [2018-04-11 20:31:21,189 INFO L230 ultiparseSymbolTable]: Global variable declaration of __U_MULTI_fcstrncpy_alloca_true_valid_memsafety_true_termination_i____ino_t in cstrncpy-alloca_true-valid-memsafety_true-termination.i [2018-04-11 20:31:21,189 INFO L230 ultiparseSymbolTable]: Global variable declaration of __U_MULTI_fcstrncpy_alloca_true_valid_memsafety_true_termination_i____sigset_t in cstrncpy-alloca_true-valid-memsafety_true-termination.i [2018-04-11 20:31:21,189 INFO L230 ultiparseSymbolTable]: Global variable declaration of __U_MULTI_fcstrncpy_alloca_true_valid_memsafety_true_termination_i____pid_t in cstrncpy-alloca_true-valid-memsafety_true-termination.i [2018-04-11 20:31:21,189 INFO L230 ultiparseSymbolTable]: Global variable declaration of __U_MULTI_fcstrncpy_alloca_true_valid_memsafety_true_termination_i__pthread_condattr_t in cstrncpy-alloca_true-valid-memsafety_true-termination.i [2018-04-11 20:31:21,189 INFO L230 ultiparseSymbolTable]: Global variable declaration of __U_MULTI_fcstrncpy_alloca_true_valid_memsafety_true_termination_i__clock_t in cstrncpy-alloca_true-valid-memsafety_true-termination.i [2018-04-11 20:31:21,189 INFO L230 ultiparseSymbolTable]: Global variable declaration of __U_MULTI_fcstrncpy_alloca_true_valid_memsafety_true_termination_i__u_int8_t in cstrncpy-alloca_true-valid-memsafety_true-termination.i [2018-04-11 20:31:21,189 INFO L230 ultiparseSymbolTable]: Global variable declaration of __U_MULTI_fcstrncpy_alloca_true_valid_memsafety_true_termination_i____uint16_t in cstrncpy-alloca_true-valid-memsafety_true-termination.i [2018-04-11 20:31:21,189 INFO L230 ultiparseSymbolTable]: Global variable declaration of __U_MULTI_fcstrncpy_alloca_true_valid_memsafety_true_termination_i__uint in cstrncpy-alloca_true-valid-memsafety_true-termination.i [2018-04-11 20:31:21,189 INFO L230 ultiparseSymbolTable]: Global variable declaration of __U_MULTI_fcstrncpy_alloca_true_valid_memsafety_true_termination_i__daddr_t in cstrncpy-alloca_true-valid-memsafety_true-termination.i [2018-04-11 20:31:21,189 INFO L230 ultiparseSymbolTable]: Global variable declaration of __U_MULTI_fcstrncpy_alloca_true_valid_memsafety_true_termination_i____fsid_t in cstrncpy-alloca_true-valid-memsafety_true-termination.i [2018-04-11 20:31:21,189 INFO L230 ultiparseSymbolTable]: Global variable declaration of __U_MULTI_fcstrncpy_alloca_true_valid_memsafety_true_termination_i__nlink_t in cstrncpy-alloca_true-valid-memsafety_true-termination.i [2018-04-11 20:31:21,189 INFO L230 ultiparseSymbolTable]: Global variable declaration of __U_MULTI_fcstrncpy_alloca_true_valid_memsafety_true_termination_i__pthread_t in cstrncpy-alloca_true-valid-memsafety_true-termination.i [2018-04-11 20:31:21,189 INFO L230 ultiparseSymbolTable]: Global variable declaration of __U_MULTI_fcstrncpy_alloca_true_valid_memsafety_true_termination_i____off_t in cstrncpy-alloca_true-valid-memsafety_true-termination.i [2018-04-11 20:31:21,189 INFO L230 ultiparseSymbolTable]: Global variable declaration of __U_MULTI_fcstrncpy_alloca_true_valid_memsafety_true_termination_i__pthread_rwlockattr_t in cstrncpy-alloca_true-valid-memsafety_true-termination.i [2018-04-11 20:31:21,189 INFO L230 ultiparseSymbolTable]: Global variable declaration of __U_MULTI_fcstrncpy_alloca_true_valid_memsafety_true_termination_i__u_long in cstrncpy-alloca_true-valid-memsafety_true-termination.i [2018-04-11 20:31:21,189 INFO L230 ultiparseSymbolTable]: Global variable declaration of __U_MULTI_fcstrncpy_alloca_true_valid_memsafety_true_termination_i__clockid_t in cstrncpy-alloca_true-valid-memsafety_true-termination.i [2018-04-11 20:31:21,189 INFO L230 ultiparseSymbolTable]: Global variable declaration of __U_MULTI_fcstrncpy_alloca_true_valid_memsafety_true_termination_i____fd_mask in cstrncpy-alloca_true-valid-memsafety_true-termination.i [2018-04-11 20:31:21,189 INFO L230 ultiparseSymbolTable]: Global variable declaration of __U_MULTI_fcstrncpy_alloca_true_valid_memsafety_true_termination_i____sig_atomic_t in cstrncpy-alloca_true-valid-memsafety_true-termination.i [2018-04-11 20:31:21,189 INFO L230 ultiparseSymbolTable]: Global variable declaration of __U_MULTI_fcstrncpy_alloca_true_valid_memsafety_true_termination_i____fsblkcnt64_t in cstrncpy-alloca_true-valid-memsafety_true-termination.i [2018-04-11 20:31:21,189 INFO L230 ultiparseSymbolTable]: Global variable declaration of __U_MULTI_fcstrncpy_alloca_true_valid_memsafety_true_termination_i__u_int32_t in cstrncpy-alloca_true-valid-memsafety_true-termination.i [2018-04-11 20:31:21,189 INFO L230 ultiparseSymbolTable]: Global variable declaration of __U_MULTI_fcstrncpy_alloca_true_valid_memsafety_true_termination_i__ulong in cstrncpy-alloca_true-valid-memsafety_true-termination.i [2018-04-11 20:31:21,189 INFO L230 ultiparseSymbolTable]: Global variable declaration of __U_MULTI_fcstrncpy_alloca_true_valid_memsafety_true_termination_i__pthread_once_t in cstrncpy-alloca_true-valid-memsafety_true-termination.i [2018-04-11 20:31:21,190 INFO L230 ultiparseSymbolTable]: Global variable declaration of __U_MULTI_fcstrncpy_alloca_true_valid_memsafety_true_termination_i____u_long in cstrncpy-alloca_true-valid-memsafety_true-termination.i [2018-04-11 20:31:21,190 INFO L230 ultiparseSymbolTable]: Global variable declaration of __U_MULTI_fcstrncpy_alloca_true_valid_memsafety_true_termination_i__blksize_t in cstrncpy-alloca_true-valid-memsafety_true-termination.i [2018-04-11 20:31:21,190 INFO L230 ultiparseSymbolTable]: Global variable declaration of __U_MULTI_fcstrncpy_alloca_true_valid_memsafety_true_termination_i____u_char in cstrncpy-alloca_true-valid-memsafety_true-termination.i [2018-04-11 20:31:21,190 INFO L230 ultiparseSymbolTable]: Global variable declaration of __U_MULTI_fcstrncpy_alloca_true_valid_memsafety_true_termination_i____off64_t in cstrncpy-alloca_true-valid-memsafety_true-termination.i [2018-04-11 20:31:21,190 INFO L230 ultiparseSymbolTable]: Global variable declaration of __U_MULTI_fcstrncpy_alloca_true_valid_memsafety_true_termination_i__u_short in cstrncpy-alloca_true-valid-memsafety_true-termination.i [2018-04-11 20:31:21,190 INFO L230 ultiparseSymbolTable]: Global variable declaration of __U_MULTI_fcstrncpy_alloca_true_valid_memsafety_true_termination_i____uint32_t in cstrncpy-alloca_true-valid-memsafety_true-termination.i [2018-04-11 20:31:21,190 INFO L230 ultiparseSymbolTable]: Global variable declaration of __U_MULTI_fcstrncpy_alloca_true_valid_memsafety_true_termination_i__wchar_t in cstrncpy-alloca_true-valid-memsafety_true-termination.i [2018-04-11 20:31:21,190 INFO L230 ultiparseSymbolTable]: Global variable declaration of __U_MULTI_fcstrncpy_alloca_true_valid_memsafety_true_termination_i____int16_t in cstrncpy-alloca_true-valid-memsafety_true-termination.i [2018-04-11 20:31:21,190 INFO L230 ultiparseSymbolTable]: Global variable declaration of __U_MULTI_fcstrncpy_alloca_true_valid_memsafety_true_termination_i__div_t in cstrncpy-alloca_true-valid-memsafety_true-termination.i [2018-04-11 20:31:21,190 INFO L230 ultiparseSymbolTable]: Global variable declaration of __U_MULTI_fcstrncpy_alloca_true_valid_memsafety_true_termination_i____intptr_t in cstrncpy-alloca_true-valid-memsafety_true-termination.i [2018-04-11 20:31:21,190 INFO L230 ultiparseSymbolTable]: Global variable declaration of __U_MULTI_fcstrncpy_alloca_true_valid_memsafety_true_termination_i____clockid_t in cstrncpy-alloca_true-valid-memsafety_true-termination.i [2018-04-11 20:31:21,190 INFO L230 ultiparseSymbolTable]: Global variable declaration of __U_MULTI_fcstrncpy_alloca_true_valid_memsafety_true_termination_i__pthread_attr_t in cstrncpy-alloca_true-valid-memsafety_true-termination.i [2018-04-11 20:31:21,190 INFO L230 ultiparseSymbolTable]: Global variable declaration of __U_MULTI_fcstrncpy_alloca_true_valid_memsafety_true_termination_i__blkcnt_t in cstrncpy-alloca_true-valid-memsafety_true-termination.i [2018-04-11 20:31:21,190 INFO L230 ultiparseSymbolTable]: Global variable declaration of __U_MULTI_fcstrncpy_alloca_true_valid_memsafety_true_termination_i__u_char in cstrncpy-alloca_true-valid-memsafety_true-termination.i [2018-04-11 20:31:21,190 INFO L230 ultiparseSymbolTable]: Global variable declaration of __U_MULTI_fcstrncpy_alloca_true_valid_memsafety_true_termination_i__off_t in cstrncpy-alloca_true-valid-memsafety_true-termination.i [2018-04-11 20:31:21,190 INFO L230 ultiparseSymbolTable]: Global variable declaration of __U_MULTI_fcstrncpy_alloca_true_valid_memsafety_true_termination_i__quad_t in cstrncpy-alloca_true-valid-memsafety_true-termination.i [2018-04-11 20:31:21,190 INFO L230 ultiparseSymbolTable]: Global variable declaration of __U_MULTI_fcstrncpy_alloca_true_valid_memsafety_true_termination_i____pthread_list_t in cstrncpy-alloca_true-valid-memsafety_true-termination.i [2018-04-11 20:31:21,190 INFO L230 ultiparseSymbolTable]: Global variable declaration of __U_MULTI_fcstrncpy_alloca_true_valid_memsafety_true_termination_i__lldiv_t in cstrncpy-alloca_true-valid-memsafety_true-termination.i [2018-04-11 20:31:21,190 INFO L230 ultiparseSymbolTable]: Global variable declaration of __U_MULTI_fcstrncpy_alloca_true_valid_memsafety_true_termination_i____socklen_t in cstrncpy-alloca_true-valid-memsafety_true-termination.i [2018-04-11 20:31:21,191 INFO L230 ultiparseSymbolTable]: Global variable declaration of __U_MULTI_fcstrncpy_alloca_true_valid_memsafety_true_termination_i__int16_t in cstrncpy-alloca_true-valid-memsafety_true-termination.i [2018-04-11 20:31:21,191 INFO L230 ultiparseSymbolTable]: Global variable declaration of __U_MULTI_fcstrncpy_alloca_true_valid_memsafety_true_termination_i__uid_t in cstrncpy-alloca_true-valid-memsafety_true-termination.i [2018-04-11 20:31:21,202 INFO L330 CDTParser]: Deleted temporary CDT project at /home/ultimate/work/ultimate/releaseScripts/default/UAutomizer-linux/data/FLAGa0ec65776 [2018-04-11 20:31:21,206 INFO L304 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2018-04-11 20:31:21,207 INFO L131 ToolchainWalker]: Walking toolchain with 4 elements. [2018-04-11 20:31:21,207 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2018-04-11 20:31:21,207 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2018-04-11 20:31:21,211 INFO L276 PluginConnector]: CACSL2BoogieTranslator initialized [2018-04-11 20:31:21,211 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 11.04 08:31:21" (1/1) ... [2018-04-11 20:31:21,213 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@7811acee and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.04 08:31:21, skipping insertion in model container [2018-04-11 20:31:21,213 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 11.04 08:31:21" (1/1) ... [2018-04-11 20:31:21,224 INFO L167 Dispatcher]: Using SV-COMP mode [2018-04-11 20:31:21,245 INFO L167 Dispatcher]: Using SV-COMP mode [2018-04-11 20:31:21,385 INFO L175 PostProcessor]: Settings: Checked method=main [2018-04-11 20:31:21,424 INFO L175 PostProcessor]: Settings: Checked method=main [2018-04-11 20:31:21,430 INFO L100 SccComputation]: Graph consists of 0 InCaSumBalls and 112 non ball SCCs. Number of states in SCCs 112. [2018-04-11 20:31:21,459 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.04 08:31:21 WrapperNode [2018-04-11 20:31:21,459 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2018-04-11 20:31:21,460 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2018-04-11 20:31:21,460 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2018-04-11 20:31:21,460 INFO L276 PluginConnector]: Boogie Preprocessor initialized [2018-04-11 20:31:21,467 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.04 08:31:21" (1/1) ... [2018-04-11 20:31:21,467 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.04 08:31:21" (1/1) ... [2018-04-11 20:31:21,478 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.04 08:31:21" (1/1) ... [2018-04-11 20:31:21,478 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.04 08:31:21" (1/1) ... [2018-04-11 20:31:21,485 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.04 08:31:21" (1/1) ... [2018-04-11 20:31:21,489 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.04 08:31:21" (1/1) ... [2018-04-11 20:31:21,491 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.04 08:31:21" (1/1) ... [2018-04-11 20:31:21,495 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2018-04-11 20:31:21,495 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2018-04-11 20:31:21,495 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2018-04-11 20:31:21,495 INFO L276 PluginConnector]: RCFGBuilder initialized [2018-04-11 20:31:21,496 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.04 08:31:21" (1/1) ... No working directory specified, using /home/ultimate/work/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2018-04-11 20:31:21,611 INFO L136 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2018-04-11 20:31:21,611 INFO L136 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2018-04-11 20:31:21,611 INFO L136 BoogieDeclarations]: Found implementation of procedure __U_MULTI_fcstrncpy_alloca_true_valid_memsafety_true_termination_i____bswap_32 [2018-04-11 20:31:21,611 INFO L136 BoogieDeclarations]: Found implementation of procedure __U_MULTI_fcstrncpy_alloca_true_valid_memsafety_true_termination_i____bswap_64 [2018-04-11 20:31:21,612 INFO L136 BoogieDeclarations]: Found implementation of procedure cstrncpy [2018-04-11 20:31:21,612 INFO L136 BoogieDeclarations]: Found implementation of procedure main [2018-04-11 20:31:21,612 INFO L128 BoogieDeclarations]: Found specification of procedure __U_MULTI_fcstrncpy_alloca_true_valid_memsafety_true_termination_i____bswap_32 [2018-04-11 20:31:21,612 INFO L128 BoogieDeclarations]: Found specification of procedure __U_MULTI_fcstrncpy_alloca_true_valid_memsafety_true_termination_i____bswap_64 [2018-04-11 20:31:21,612 INFO L128 BoogieDeclarations]: Found specification of procedure __ctype_get_mb_cur_max [2018-04-11 20:31:21,612 INFO L128 BoogieDeclarations]: Found specification of procedure atof [2018-04-11 20:31:21,612 INFO L128 BoogieDeclarations]: Found specification of procedure atoi [2018-04-11 20:31:21,612 INFO L128 BoogieDeclarations]: Found specification of procedure atol [2018-04-11 20:31:21,612 INFO L128 BoogieDeclarations]: Found specification of procedure atoll [2018-04-11 20:31:21,612 INFO L128 BoogieDeclarations]: Found specification of procedure strtod [2018-04-11 20:31:21,612 INFO L128 BoogieDeclarations]: Found specification of procedure strtof [2018-04-11 20:31:21,613 INFO L128 BoogieDeclarations]: Found specification of procedure strtold [2018-04-11 20:31:21,613 INFO L128 BoogieDeclarations]: Found specification of procedure strtol [2018-04-11 20:31:21,613 INFO L128 BoogieDeclarations]: Found specification of procedure strtoul [2018-04-11 20:31:21,613 INFO L128 BoogieDeclarations]: Found specification of procedure strtoq [2018-04-11 20:31:21,613 INFO L128 BoogieDeclarations]: Found specification of procedure strtouq [2018-04-11 20:31:21,613 INFO L128 BoogieDeclarations]: Found specification of procedure strtoll [2018-04-11 20:31:21,613 INFO L128 BoogieDeclarations]: Found specification of procedure strtoull [2018-04-11 20:31:21,613 INFO L128 BoogieDeclarations]: Found specification of procedure l64a [2018-04-11 20:31:21,613 INFO L128 BoogieDeclarations]: Found specification of procedure a64l [2018-04-11 20:31:21,613 INFO L128 BoogieDeclarations]: Found specification of procedure select [2018-04-11 20:31:21,613 INFO L128 BoogieDeclarations]: Found specification of procedure pselect [2018-04-11 20:31:21,614 INFO L128 BoogieDeclarations]: Found specification of procedure gnu_dev_major [2018-04-11 20:31:21,614 INFO L128 BoogieDeclarations]: Found specification of procedure gnu_dev_minor [2018-04-11 20:31:21,614 INFO L128 BoogieDeclarations]: Found specification of procedure gnu_dev_makedev [2018-04-11 20:31:21,614 INFO L128 BoogieDeclarations]: Found specification of procedure random [2018-04-11 20:31:21,614 INFO L128 BoogieDeclarations]: Found specification of procedure srandom [2018-04-11 20:31:21,614 INFO L128 BoogieDeclarations]: Found specification of procedure initstate [2018-04-11 20:31:21,614 INFO L128 BoogieDeclarations]: Found specification of procedure setstate [2018-04-11 20:31:21,614 INFO L128 BoogieDeclarations]: Found specification of procedure random_r [2018-04-11 20:31:21,614 INFO L128 BoogieDeclarations]: Found specification of procedure srandom_r [2018-04-11 20:31:21,615 INFO L128 BoogieDeclarations]: Found specification of procedure initstate_r [2018-04-11 20:31:21,615 INFO L128 BoogieDeclarations]: Found specification of procedure setstate_r [2018-04-11 20:31:21,615 INFO L128 BoogieDeclarations]: Found specification of procedure rand [2018-04-11 20:31:21,615 INFO L128 BoogieDeclarations]: Found specification of procedure srand [2018-04-11 20:31:21,615 INFO L128 BoogieDeclarations]: Found specification of procedure rand_r [2018-04-11 20:31:21,615 INFO L128 BoogieDeclarations]: Found specification of procedure drand48 [2018-04-11 20:31:21,615 INFO L128 BoogieDeclarations]: Found specification of procedure erand48 [2018-04-11 20:31:21,615 INFO L128 BoogieDeclarations]: Found specification of procedure lrand48 [2018-04-11 20:31:21,615 INFO L128 BoogieDeclarations]: Found specification of procedure nrand48 [2018-04-11 20:31:21,615 INFO L128 BoogieDeclarations]: Found specification of procedure mrand48 [2018-04-11 20:31:21,616 INFO L128 BoogieDeclarations]: Found specification of procedure jrand48 [2018-04-11 20:31:21,616 INFO L128 BoogieDeclarations]: Found specification of procedure srand48 [2018-04-11 20:31:21,616 INFO L128 BoogieDeclarations]: Found specification of procedure seed48 [2018-04-11 20:31:21,616 INFO L128 BoogieDeclarations]: Found specification of procedure lcong48 [2018-04-11 20:31:21,616 INFO L128 BoogieDeclarations]: Found specification of procedure drand48_r [2018-04-11 20:31:21,616 INFO L128 BoogieDeclarations]: Found specification of procedure erand48_r [2018-04-11 20:31:21,616 INFO L128 BoogieDeclarations]: Found specification of procedure lrand48_r [2018-04-11 20:31:21,616 INFO L128 BoogieDeclarations]: Found specification of procedure nrand48_r [2018-04-11 20:31:21,616 INFO L128 BoogieDeclarations]: Found specification of procedure mrand48_r [2018-04-11 20:31:21,616 INFO L128 BoogieDeclarations]: Found specification of procedure jrand48_r [2018-04-11 20:31:21,616 INFO L128 BoogieDeclarations]: Found specification of procedure srand48_r [2018-04-11 20:31:21,617 INFO L128 BoogieDeclarations]: Found specification of procedure seed48_r [2018-04-11 20:31:21,617 INFO L128 BoogieDeclarations]: Found specification of procedure lcong48_r [2018-04-11 20:31:21,617 INFO L128 BoogieDeclarations]: Found specification of procedure malloc [2018-04-11 20:31:21,617 INFO L128 BoogieDeclarations]: Found specification of procedure calloc [2018-04-11 20:31:21,617 INFO L128 BoogieDeclarations]: Found specification of procedure realloc [2018-04-11 20:31:21,617 INFO L128 BoogieDeclarations]: Found specification of procedure free [2018-04-11 20:31:21,617 INFO L128 BoogieDeclarations]: Found specification of procedure cfree [2018-04-11 20:31:21,617 INFO L128 BoogieDeclarations]: Found specification of procedure alloca [2018-04-11 20:31:21,617 INFO L128 BoogieDeclarations]: Found specification of procedure valloc [2018-04-11 20:31:21,617 INFO L128 BoogieDeclarations]: Found specification of procedure posix_memalign [2018-04-11 20:31:21,618 INFO L128 BoogieDeclarations]: Found specification of procedure abort [2018-04-11 20:31:21,618 INFO L128 BoogieDeclarations]: Found specification of procedure atexit [2018-04-11 20:31:21,618 INFO L128 BoogieDeclarations]: Found specification of procedure on_exit [2018-04-11 20:31:21,618 INFO L128 BoogieDeclarations]: Found specification of procedure exit [2018-04-11 20:31:21,618 INFO L128 BoogieDeclarations]: Found specification of procedure _Exit [2018-04-11 20:31:21,618 INFO L128 BoogieDeclarations]: Found specification of procedure getenv [2018-04-11 20:31:21,618 INFO L128 BoogieDeclarations]: Found specification of procedure putenv [2018-04-11 20:31:21,618 INFO L128 BoogieDeclarations]: Found specification of procedure setenv [2018-04-11 20:31:21,618 INFO L128 BoogieDeclarations]: Found specification of procedure unsetenv [2018-04-11 20:31:21,619 INFO L128 BoogieDeclarations]: Found specification of procedure clearenv [2018-04-11 20:31:21,619 INFO L128 BoogieDeclarations]: Found specification of procedure mktemp [2018-04-11 20:31:21,619 INFO L128 BoogieDeclarations]: Found specification of procedure mkstemp [2018-04-11 20:31:21,619 INFO L128 BoogieDeclarations]: Found specification of procedure mkstemps [2018-04-11 20:31:21,619 INFO L128 BoogieDeclarations]: Found specification of procedure mkdtemp [2018-04-11 20:31:21,619 INFO L128 BoogieDeclarations]: Found specification of procedure system [2018-04-11 20:31:21,619 INFO L128 BoogieDeclarations]: Found specification of procedure realpath [2018-04-11 20:31:21,619 INFO L128 BoogieDeclarations]: Found specification of procedure bsearch [2018-04-11 20:31:21,619 INFO L128 BoogieDeclarations]: Found specification of procedure qsort [2018-04-11 20:31:21,619 INFO L128 BoogieDeclarations]: Found specification of procedure abs [2018-04-11 20:31:21,619 INFO L128 BoogieDeclarations]: Found specification of procedure labs [2018-04-11 20:31:21,619 INFO L128 BoogieDeclarations]: Found specification of procedure llabs [2018-04-11 20:31:21,619 INFO L128 BoogieDeclarations]: Found specification of procedure div [2018-04-11 20:31:21,619 INFO L128 BoogieDeclarations]: Found specification of procedure ldiv [2018-04-11 20:31:21,619 INFO L128 BoogieDeclarations]: Found specification of procedure lldiv [2018-04-11 20:31:21,619 INFO L128 BoogieDeclarations]: Found specification of procedure ecvt [2018-04-11 20:31:21,619 INFO L128 BoogieDeclarations]: Found specification of procedure fcvt [2018-04-11 20:31:21,620 INFO L128 BoogieDeclarations]: Found specification of procedure gcvt [2018-04-11 20:31:21,620 INFO L128 BoogieDeclarations]: Found specification of procedure qecvt [2018-04-11 20:31:21,620 INFO L128 BoogieDeclarations]: Found specification of procedure qfcvt [2018-04-11 20:31:21,620 INFO L128 BoogieDeclarations]: Found specification of procedure qgcvt [2018-04-11 20:31:21,620 INFO L128 BoogieDeclarations]: Found specification of procedure ecvt_r [2018-04-11 20:31:21,620 INFO L128 BoogieDeclarations]: Found specification of procedure fcvt_r [2018-04-11 20:31:21,620 INFO L128 BoogieDeclarations]: Found specification of procedure qecvt_r [2018-04-11 20:31:21,620 INFO L128 BoogieDeclarations]: Found specification of procedure qfcvt_r [2018-04-11 20:31:21,620 INFO L128 BoogieDeclarations]: Found specification of procedure mblen [2018-04-11 20:31:21,620 INFO L128 BoogieDeclarations]: Found specification of procedure mbtowc [2018-04-11 20:31:21,620 INFO L128 BoogieDeclarations]: Found specification of procedure wctomb [2018-04-11 20:31:21,620 INFO L128 BoogieDeclarations]: Found specification of procedure mbstowcs [2018-04-11 20:31:21,621 INFO L128 BoogieDeclarations]: Found specification of procedure wcstombs [2018-04-11 20:31:21,621 INFO L128 BoogieDeclarations]: Found specification of procedure rpmatch [2018-04-11 20:31:21,621 INFO L128 BoogieDeclarations]: Found specification of procedure getsubopt [2018-04-11 20:31:21,621 INFO L128 BoogieDeclarations]: Found specification of procedure getloadavg [2018-04-11 20:31:21,621 INFO L128 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_int [2018-04-11 20:31:21,621 INFO L128 BoogieDeclarations]: Found specification of procedure cstrncpy [2018-04-11 20:31:21,621 INFO L128 BoogieDeclarations]: Found specification of procedure read~int [2018-04-11 20:31:21,621 INFO L128 BoogieDeclarations]: Found specification of procedure write~int [2018-04-11 20:31:21,621 INFO L128 BoogieDeclarations]: Found specification of procedure main [2018-04-11 20:31:21,621 INFO L128 BoogieDeclarations]: Found specification of procedure #Ultimate.alloc [2018-04-11 20:31:21,621 INFO L128 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2018-04-11 20:31:21,622 INFO L128 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2018-04-11 20:31:21,622 INFO L128 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2018-04-11 20:31:21,622 INFO L128 BoogieDeclarations]: Found specification of procedure write~unchecked~int [2018-04-11 20:31:21,888 INFO L259 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2018-04-11 20:31:21,889 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 11.04 08:31:21 BoogieIcfgContainer [2018-04-11 20:31:21,889 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2018-04-11 20:31:21,889 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2018-04-11 20:31:21,889 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2018-04-11 20:31:21,891 INFO L276 PluginConnector]: TraceAbstraction initialized [2018-04-11 20:31:21,892 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 11.04 08:31:21" (1/3) ... [2018-04-11 20:31:21,892 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@1f0898ef and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 11.04 08:31:21, skipping insertion in model container [2018-04-11 20:31:21,892 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.04 08:31:21" (2/3) ... [2018-04-11 20:31:21,892 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@1f0898ef and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 11.04 08:31:21, skipping insertion in model container [2018-04-11 20:31:21,892 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 11.04 08:31:21" (3/3) ... [2018-04-11 20:31:21,893 INFO L107 eAbstractionObserver]: Analyzing ICFG cstrncpy-alloca_true-valid-memsafety_true-termination.i [2018-04-11 20:31:21,898 INFO L131 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2018-04-11 20:31:21,903 INFO L143 ceAbstractionStarter]: Appying trace abstraction to program that has 9 error locations. [2018-04-11 20:31:21,934 INFO L128 ementStrategyFactory]: Using default assertion order modulation [2018-04-11 20:31:21,934 INFO L369 AbstractCegarLoop]: Interprodecural is true [2018-04-11 20:31:21,934 INFO L370 AbstractCegarLoop]: Hoare is false [2018-04-11 20:31:21,934 INFO L371 AbstractCegarLoop]: Compute interpolants for FPandBP [2018-04-11 20:31:21,934 INFO L372 AbstractCegarLoop]: Backedges is TWOTRACK [2018-04-11 20:31:21,935 INFO L373 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2018-04-11 20:31:21,935 INFO L374 AbstractCegarLoop]: Difference is false [2018-04-11 20:31:21,935 INFO L375 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2018-04-11 20:31:21,935 INFO L380 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2018-04-11 20:31:21,935 INFO L87 2NestedWordAutomaton]: Mode: main mode - execution starts in main procedure [2018-04-11 20:31:21,943 INFO L276 IsEmpty]: Start isEmpty. Operand 46 states. [2018-04-11 20:31:21,948 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 14 [2018-04-11 20:31:21,948 INFO L347 BasicCegarLoop]: Found error trace [2018-04-11 20:31:21,949 INFO L355 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-04-11 20:31:21,949 INFO L408 AbstractCegarLoop]: === Iteration 1 === [cstrncpyErr3RequiresViolation, cstrncpyErr5RequiresViolation, cstrncpyErr4RequiresViolation, cstrncpyErr2RequiresViolation, cstrncpyErr0RequiresViolation, cstrncpyErr1RequiresViolation, mainErr1RequiresViolation, mainErr2EnsuresViolationMEMORY_LEAK, mainErr0RequiresViolation]=== [2018-04-11 20:31:21,952 INFO L82 PathProgramCache]: Analyzing trace with hash -441767553, now seen corresponding path program 1 times [2018-04-11 20:31:21,953 INFO L213 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-04-11 20:31:21,953 INFO L68 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-04-11 20:31:21,980 INFO L119 rtionOrderModulation]: Craig nested/tree interpolation forces the following order [2018-04-11 20:31:21,980 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-04-11 20:31:21,980 INFO L119 rtionOrderModulation]: Craig nested/tree interpolation forces the following order [2018-04-11 20:31:22,013 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-04-11 20:31:22,017 WARN L137 erpolLogProxyWrapper]: Using partial proofs (cut at CNF-level). Set option :produce-proofs to true to get complete proofs. [2018-04-11 20:31:22,065 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-04-11 20:31:22,067 INFO L320 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-04-11 20:31:22,067 INFO L335 seRefinementStrategy]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2018-04-11 20:31:22,068 INFO L442 AbstractCegarLoop]: Interpolant automaton has 4 states [2018-04-11 20:31:22,076 INFO L132 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2018-04-11 20:31:22,077 INFO L133 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2018-04-11 20:31:22,079 INFO L87 Difference]: Start difference. First operand 46 states. Second operand 4 states. [2018-04-11 20:31:22,147 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-04-11 20:31:22,148 INFO L93 Difference]: Finished difference Result 45 states and 49 transitions. [2018-04-11 20:31:22,149 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2018-04-11 20:31:22,150 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 13 [2018-04-11 20:31:22,151 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-04-11 20:31:22,159 INFO L225 Difference]: With dead ends: 45 [2018-04-11 20:31:22,160 INFO L226 Difference]: Without dead ends: 42 [2018-04-11 20:31:22,161 INFO L567 BasicCegarLoop]: 0 DeclaredPredicates, 4 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2018-04-11 20:31:22,172 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 42 states. [2018-04-11 20:31:22,183 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 42 to 42. [2018-04-11 20:31:22,184 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 42 states. [2018-04-11 20:31:22,184 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 42 states to 42 states and 46 transitions. [2018-04-11 20:31:22,185 INFO L78 Accepts]: Start accepts. Automaton has 42 states and 46 transitions. Word has length 13 [2018-04-11 20:31:22,186 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-04-11 20:31:22,186 INFO L459 AbstractCegarLoop]: Abstraction has 42 states and 46 transitions. [2018-04-11 20:31:22,186 INFO L460 AbstractCegarLoop]: Interpolant automaton has 4 states. [2018-04-11 20:31:22,186 INFO L276 IsEmpty]: Start isEmpty. Operand 42 states and 46 transitions. [2018-04-11 20:31:22,186 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 14 [2018-04-11 20:31:22,186 INFO L347 BasicCegarLoop]: Found error trace [2018-04-11 20:31:22,186 INFO L355 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-04-11 20:31:22,186 INFO L408 AbstractCegarLoop]: === Iteration 2 === [cstrncpyErr3RequiresViolation, cstrncpyErr5RequiresViolation, cstrncpyErr4RequiresViolation, cstrncpyErr2RequiresViolation, cstrncpyErr0RequiresViolation, cstrncpyErr1RequiresViolation, mainErr1RequiresViolation, mainErr2EnsuresViolationMEMORY_LEAK, mainErr0RequiresViolation]=== [2018-04-11 20:31:22,186 INFO L82 PathProgramCache]: Analyzing trace with hash -441767552, now seen corresponding path program 1 times [2018-04-11 20:31:22,186 INFO L213 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-04-11 20:31:22,187 INFO L68 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-04-11 20:31:22,187 INFO L119 rtionOrderModulation]: Craig nested/tree interpolation forces the following order [2018-04-11 20:31:22,187 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-04-11 20:31:22,187 INFO L119 rtionOrderModulation]: Craig nested/tree interpolation forces the following order [2018-04-11 20:31:22,201 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-04-11 20:31:22,202 WARN L137 erpolLogProxyWrapper]: Using partial proofs (cut at CNF-level). Set option :produce-proofs to true to get complete proofs. [2018-04-11 20:31:22,274 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-04-11 20:31:22,274 INFO L320 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-04-11 20:31:22,274 INFO L335 seRefinementStrategy]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2018-04-11 20:31:22,275 INFO L442 AbstractCegarLoop]: Interpolant automaton has 5 states [2018-04-11 20:31:22,275 INFO L132 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2018-04-11 20:31:22,275 INFO L133 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2018-04-11 20:31:22,275 INFO L87 Difference]: Start difference. First operand 42 states and 46 transitions. Second operand 5 states. [2018-04-11 20:31:22,300 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-04-11 20:31:22,301 INFO L93 Difference]: Finished difference Result 41 states and 45 transitions. [2018-04-11 20:31:22,301 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2018-04-11 20:31:22,301 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 13 [2018-04-11 20:31:22,301 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-04-11 20:31:22,301 INFO L225 Difference]: With dead ends: 41 [2018-04-11 20:31:22,301 INFO L226 Difference]: Without dead ends: 41 [2018-04-11 20:31:22,302 INFO L567 BasicCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=14, Invalid=16, Unknown=0, NotChecked=0, Total=30 [2018-04-11 20:31:22,302 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 41 states. [2018-04-11 20:31:22,305 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 41 to 41. [2018-04-11 20:31:22,305 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 41 states. [2018-04-11 20:31:22,306 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 41 states to 41 states and 45 transitions. [2018-04-11 20:31:22,306 INFO L78 Accepts]: Start accepts. Automaton has 41 states and 45 transitions. Word has length 13 [2018-04-11 20:31:22,306 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-04-11 20:31:22,306 INFO L459 AbstractCegarLoop]: Abstraction has 41 states and 45 transitions. [2018-04-11 20:31:22,306 INFO L460 AbstractCegarLoop]: Interpolant automaton has 5 states. [2018-04-11 20:31:22,306 INFO L276 IsEmpty]: Start isEmpty. Operand 41 states and 45 transitions. [2018-04-11 20:31:22,307 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 19 [2018-04-11 20:31:22,307 INFO L347 BasicCegarLoop]: Found error trace [2018-04-11 20:31:22,307 INFO L355 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-04-11 20:31:22,307 INFO L408 AbstractCegarLoop]: === Iteration 3 === [cstrncpyErr3RequiresViolation, cstrncpyErr5RequiresViolation, cstrncpyErr4RequiresViolation, cstrncpyErr2RequiresViolation, cstrncpyErr0RequiresViolation, cstrncpyErr1RequiresViolation, mainErr1RequiresViolation, mainErr2EnsuresViolationMEMORY_LEAK, mainErr0RequiresViolation]=== [2018-04-11 20:31:22,307 INFO L82 PathProgramCache]: Analyzing trace with hash -1083273766, now seen corresponding path program 1 times [2018-04-11 20:31:22,307 INFO L213 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-04-11 20:31:22,308 INFO L68 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-04-11 20:31:22,308 INFO L119 rtionOrderModulation]: Craig nested/tree interpolation forces the following order [2018-04-11 20:31:22,308 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-04-11 20:31:22,309 INFO L119 rtionOrderModulation]: Craig nested/tree interpolation forces the following order [2018-04-11 20:31:22,322 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-04-11 20:31:22,323 WARN L137 erpolLogProxyWrapper]: Using partial proofs (cut at CNF-level). Set option :produce-proofs to true to get complete proofs. [2018-04-11 20:31:22,361 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-04-11 20:31:22,362 INFO L320 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-04-11 20:31:22,362 INFO L335 seRefinementStrategy]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2018-04-11 20:31:22,362 INFO L442 AbstractCegarLoop]: Interpolant automaton has 6 states [2018-04-11 20:31:22,362 INFO L132 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2018-04-11 20:31:22,362 INFO L133 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2018-04-11 20:31:22,362 INFO L87 Difference]: Start difference. First operand 41 states and 45 transitions. Second operand 6 states. [2018-04-11 20:31:22,437 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-04-11 20:31:22,437 INFO L93 Difference]: Finished difference Result 40 states and 44 transitions. [2018-04-11 20:31:22,437 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2018-04-11 20:31:22,437 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 18 [2018-04-11 20:31:22,437 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-04-11 20:31:22,438 INFO L225 Difference]: With dead ends: 40 [2018-04-11 20:31:22,438 INFO L226 Difference]: Without dead ends: 40 [2018-04-11 20:31:22,438 INFO L567 BasicCegarLoop]: 0 DeclaredPredicates, 7 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=19, Invalid=37, Unknown=0, NotChecked=0, Total=56 [2018-04-11 20:31:22,438 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 40 states. [2018-04-11 20:31:22,440 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 40 to 40. [2018-04-11 20:31:22,440 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 40 states. [2018-04-11 20:31:22,441 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 40 states to 40 states and 44 transitions. [2018-04-11 20:31:22,441 INFO L78 Accepts]: Start accepts. Automaton has 40 states and 44 transitions. Word has length 18 [2018-04-11 20:31:22,441 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-04-11 20:31:22,441 INFO L459 AbstractCegarLoop]: Abstraction has 40 states and 44 transitions. [2018-04-11 20:31:22,441 INFO L460 AbstractCegarLoop]: Interpolant automaton has 6 states. [2018-04-11 20:31:22,441 INFO L276 IsEmpty]: Start isEmpty. Operand 40 states and 44 transitions. [2018-04-11 20:31:22,442 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 19 [2018-04-11 20:31:22,442 INFO L347 BasicCegarLoop]: Found error trace [2018-04-11 20:31:22,442 INFO L355 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-04-11 20:31:22,442 INFO L408 AbstractCegarLoop]: === Iteration 4 === [cstrncpyErr3RequiresViolation, cstrncpyErr5RequiresViolation, cstrncpyErr4RequiresViolation, cstrncpyErr2RequiresViolation, cstrncpyErr0RequiresViolation, cstrncpyErr1RequiresViolation, mainErr1RequiresViolation, mainErr2EnsuresViolationMEMORY_LEAK, mainErr0RequiresViolation]=== [2018-04-11 20:31:22,442 INFO L82 PathProgramCache]: Analyzing trace with hash -1083273765, now seen corresponding path program 1 times [2018-04-11 20:31:22,442 INFO L213 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-04-11 20:31:22,442 INFO L68 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-04-11 20:31:22,443 INFO L119 rtionOrderModulation]: Craig nested/tree interpolation forces the following order [2018-04-11 20:31:22,443 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-04-11 20:31:22,443 INFO L119 rtionOrderModulation]: Craig nested/tree interpolation forces the following order [2018-04-11 20:31:22,457 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-04-11 20:31:22,457 WARN L137 erpolLogProxyWrapper]: Using partial proofs (cut at CNF-level). Set option :produce-proofs to true to get complete proofs. [2018-04-11 20:31:22,543 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-04-11 20:31:22,543 INFO L320 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-04-11 20:31:22,543 INFO L335 seRefinementStrategy]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2018-04-11 20:31:22,544 INFO L442 AbstractCegarLoop]: Interpolant automaton has 9 states [2018-04-11 20:31:22,544 INFO L132 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2018-04-11 20:31:22,544 INFO L133 InterpolantAutomaton]: CoverageRelationStatistics Valid=18, Invalid=54, Unknown=0, NotChecked=0, Total=72 [2018-04-11 20:31:22,544 INFO L87 Difference]: Start difference. First operand 40 states and 44 transitions. Second operand 9 states. [2018-04-11 20:31:22,691 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-04-11 20:31:22,691 INFO L93 Difference]: Finished difference Result 50 states and 56 transitions. [2018-04-11 20:31:22,692 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2018-04-11 20:31:22,692 INFO L78 Accepts]: Start accepts. Automaton has 9 states. Word has length 18 [2018-04-11 20:31:22,692 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-04-11 20:31:22,693 INFO L225 Difference]: With dead ends: 50 [2018-04-11 20:31:22,694 INFO L226 Difference]: Without dead ends: 50 [2018-04-11 20:31:22,694 INFO L567 BasicCegarLoop]: 0 DeclaredPredicates, 11 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 18 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=32, Invalid=100, Unknown=0, NotChecked=0, Total=132 [2018-04-11 20:31:22,694 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 50 states. [2018-04-11 20:31:22,696 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 50 to 43. [2018-04-11 20:31:22,696 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 43 states. [2018-04-11 20:31:22,696 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 43 states to 43 states and 48 transitions. [2018-04-11 20:31:22,696 INFO L78 Accepts]: Start accepts. Automaton has 43 states and 48 transitions. Word has length 18 [2018-04-11 20:31:22,696 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-04-11 20:31:22,697 INFO L459 AbstractCegarLoop]: Abstraction has 43 states and 48 transitions. [2018-04-11 20:31:22,697 INFO L460 AbstractCegarLoop]: Interpolant automaton has 9 states. [2018-04-11 20:31:22,697 INFO L276 IsEmpty]: Start isEmpty. Operand 43 states and 48 transitions. [2018-04-11 20:31:22,697 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 20 [2018-04-11 20:31:22,697 INFO L347 BasicCegarLoop]: Found error trace [2018-04-11 20:31:22,697 INFO L355 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-04-11 20:31:22,697 INFO L408 AbstractCegarLoop]: === Iteration 5 === [cstrncpyErr3RequiresViolation, cstrncpyErr5RequiresViolation, cstrncpyErr4RequiresViolation, cstrncpyErr2RequiresViolation, cstrncpyErr0RequiresViolation, cstrncpyErr1RequiresViolation, mainErr1RequiresViolation, mainErr2EnsuresViolationMEMORY_LEAK, mainErr0RequiresViolation]=== [2018-04-11 20:31:22,697 INFO L82 PathProgramCache]: Analyzing trace with hash 778251610, now seen corresponding path program 1 times [2018-04-11 20:31:22,697 INFO L213 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-04-11 20:31:22,697 INFO L68 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-04-11 20:31:22,698 INFO L119 rtionOrderModulation]: Craig nested/tree interpolation forces the following order [2018-04-11 20:31:22,698 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-04-11 20:31:22,698 INFO L119 rtionOrderModulation]: Craig nested/tree interpolation forces the following order [2018-04-11 20:31:22,709 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-04-11 20:31:22,710 WARN L137 erpolLogProxyWrapper]: Using partial proofs (cut at CNF-level). Set option :produce-proofs to true to get complete proofs. [2018-04-11 20:31:22,770 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-04-11 20:31:22,771 INFO L320 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-04-11 20:31:22,771 INFO L335 seRefinementStrategy]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2018-04-11 20:31:22,771 INFO L442 AbstractCegarLoop]: Interpolant automaton has 9 states [2018-04-11 20:31:22,771 INFO L132 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2018-04-11 20:31:22,771 INFO L133 InterpolantAutomaton]: CoverageRelationStatistics Valid=17, Invalid=55, Unknown=0, NotChecked=0, Total=72 [2018-04-11 20:31:22,771 INFO L87 Difference]: Start difference. First operand 43 states and 48 transitions. Second operand 9 states. [2018-04-11 20:31:22,859 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-04-11 20:31:22,859 INFO L93 Difference]: Finished difference Result 42 states and 47 transitions. [2018-04-11 20:31:22,859 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2018-04-11 20:31:22,859 INFO L78 Accepts]: Start accepts. Automaton has 9 states. Word has length 19 [2018-04-11 20:31:22,860 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-04-11 20:31:22,860 INFO L225 Difference]: With dead ends: 42 [2018-04-11 20:31:22,860 INFO L226 Difference]: Without dead ends: 42 [2018-04-11 20:31:22,860 INFO L567 BasicCegarLoop]: 0 DeclaredPredicates, 12 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 8 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=33, Invalid=99, Unknown=0, NotChecked=0, Total=132 [2018-04-11 20:31:22,860 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 42 states. [2018-04-11 20:31:22,861 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 42 to 42. [2018-04-11 20:31:22,862 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 42 states. [2018-04-11 20:31:22,862 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 42 states to 42 states and 47 transitions. [2018-04-11 20:31:22,862 INFO L78 Accepts]: Start accepts. Automaton has 42 states and 47 transitions. Word has length 19 [2018-04-11 20:31:22,862 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-04-11 20:31:22,862 INFO L459 AbstractCegarLoop]: Abstraction has 42 states and 47 transitions. [2018-04-11 20:31:22,862 INFO L460 AbstractCegarLoop]: Interpolant automaton has 9 states. [2018-04-11 20:31:22,862 INFO L276 IsEmpty]: Start isEmpty. Operand 42 states and 47 transitions. [2018-04-11 20:31:22,863 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 20 [2018-04-11 20:31:22,863 INFO L347 BasicCegarLoop]: Found error trace [2018-04-11 20:31:22,863 INFO L355 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-04-11 20:31:22,863 INFO L408 AbstractCegarLoop]: === Iteration 6 === [cstrncpyErr3RequiresViolation, cstrncpyErr5RequiresViolation, cstrncpyErr4RequiresViolation, cstrncpyErr2RequiresViolation, cstrncpyErr0RequiresViolation, cstrncpyErr1RequiresViolation, mainErr1RequiresViolation, mainErr2EnsuresViolationMEMORY_LEAK, mainErr0RequiresViolation]=== [2018-04-11 20:31:22,863 INFO L82 PathProgramCache]: Analyzing trace with hash 778251611, now seen corresponding path program 1 times [2018-04-11 20:31:22,863 INFO L213 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-04-11 20:31:22,863 INFO L68 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-04-11 20:31:22,863 INFO L119 rtionOrderModulation]: Craig nested/tree interpolation forces the following order [2018-04-11 20:31:22,864 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-04-11 20:31:22,864 INFO L119 rtionOrderModulation]: Craig nested/tree interpolation forces the following order [2018-04-11 20:31:22,870 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-04-11 20:31:22,871 WARN L137 erpolLogProxyWrapper]: Using partial proofs (cut at CNF-level). Set option :produce-proofs to true to get complete proofs. [2018-04-11 20:31:22,957 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-04-11 20:31:22,957 INFO L320 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-04-11 20:31:22,957 INFO L335 seRefinementStrategy]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2018-04-11 20:31:22,957 INFO L442 AbstractCegarLoop]: Interpolant automaton has 9 states [2018-04-11 20:31:22,958 INFO L132 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2018-04-11 20:31:22,958 INFO L133 InterpolantAutomaton]: CoverageRelationStatistics Valid=19, Invalid=53, Unknown=0, NotChecked=0, Total=72 [2018-04-11 20:31:22,958 INFO L87 Difference]: Start difference. First operand 42 states and 47 transitions. Second operand 9 states. [2018-04-11 20:31:23,044 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-04-11 20:31:23,044 INFO L93 Difference]: Finished difference Result 47 states and 53 transitions. [2018-04-11 20:31:23,044 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2018-04-11 20:31:23,045 INFO L78 Accepts]: Start accepts. Automaton has 9 states. Word has length 19 [2018-04-11 20:31:23,045 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-04-11 20:31:23,045 INFO L225 Difference]: With dead ends: 47 [2018-04-11 20:31:23,045 INFO L226 Difference]: Without dead ends: 47 [2018-04-11 20:31:23,045 INFO L567 BasicCegarLoop]: 0 DeclaredPredicates, 11 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 21 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=33, Invalid=99, Unknown=0, NotChecked=0, Total=132 [2018-04-11 20:31:23,045 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 47 states. [2018-04-11 20:31:23,047 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 47 to 43. [2018-04-11 20:31:23,047 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 43 states. [2018-04-11 20:31:23,047 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 43 states to 43 states and 48 transitions. [2018-04-11 20:31:23,047 INFO L78 Accepts]: Start accepts. Automaton has 43 states and 48 transitions. Word has length 19 [2018-04-11 20:31:23,047 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-04-11 20:31:23,047 INFO L459 AbstractCegarLoop]: Abstraction has 43 states and 48 transitions. [2018-04-11 20:31:23,047 INFO L460 AbstractCegarLoop]: Interpolant automaton has 9 states. [2018-04-11 20:31:23,047 INFO L276 IsEmpty]: Start isEmpty. Operand 43 states and 48 transitions. [2018-04-11 20:31:23,048 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 24 [2018-04-11 20:31:23,048 INFO L347 BasicCegarLoop]: Found error trace [2018-04-11 20:31:23,048 INFO L355 BasicCegarLoop]: trace histogram [2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-04-11 20:31:23,048 INFO L408 AbstractCegarLoop]: === Iteration 7 === [cstrncpyErr3RequiresViolation, cstrncpyErr5RequiresViolation, cstrncpyErr4RequiresViolation, cstrncpyErr2RequiresViolation, cstrncpyErr0RequiresViolation, cstrncpyErr1RequiresViolation, mainErr1RequiresViolation, mainErr2EnsuresViolationMEMORY_LEAK, mainErr0RequiresViolation]=== [2018-04-11 20:31:23,048 INFO L82 PathProgramCache]: Analyzing trace with hash -1006730087, now seen corresponding path program 1 times [2018-04-11 20:31:23,048 INFO L213 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-04-11 20:31:23,048 INFO L68 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-04-11 20:31:23,049 INFO L119 rtionOrderModulation]: Craig nested/tree interpolation forces the following order [2018-04-11 20:31:23,049 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-04-11 20:31:23,049 INFO L119 rtionOrderModulation]: Craig nested/tree interpolation forces the following order [2018-04-11 20:31:23,058 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-04-11 20:31:23,058 WARN L137 erpolLogProxyWrapper]: Using partial proofs (cut at CNF-level). Set option :produce-proofs to true to get complete proofs. [2018-04-11 20:31:23,088 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 3 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-04-11 20:31:23,088 INFO L320 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-04-11 20:31:23,088 INFO L335 seRefinementStrategy]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2018-04-11 20:31:23,089 INFO L442 AbstractCegarLoop]: Interpolant automaton has 6 states [2018-04-11 20:31:23,089 INFO L132 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2018-04-11 20:31:23,089 INFO L133 InterpolantAutomaton]: CoverageRelationStatistics Valid=10, Invalid=20, Unknown=0, NotChecked=0, Total=30 [2018-04-11 20:31:23,089 INFO L87 Difference]: Start difference. First operand 43 states and 48 transitions. Second operand 6 states. [2018-04-11 20:31:23,118 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-04-11 20:31:23,118 INFO L93 Difference]: Finished difference Result 77 states and 84 transitions. [2018-04-11 20:31:23,119 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2018-04-11 20:31:23,119 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 23 [2018-04-11 20:31:23,119 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-04-11 20:31:23,119 INFO L225 Difference]: With dead ends: 77 [2018-04-11 20:31:23,119 INFO L226 Difference]: Without dead ends: 77 [2018-04-11 20:31:23,119 INFO L567 BasicCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=20, Invalid=36, Unknown=0, NotChecked=0, Total=56 [2018-04-11 20:31:23,120 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 77 states. [2018-04-11 20:31:23,122 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 77 to 65. [2018-04-11 20:31:23,122 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 65 states. [2018-04-11 20:31:23,122 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 65 states to 65 states and 75 transitions. [2018-04-11 20:31:23,122 INFO L78 Accepts]: Start accepts. Automaton has 65 states and 75 transitions. Word has length 23 [2018-04-11 20:31:23,123 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-04-11 20:31:23,123 INFO L459 AbstractCegarLoop]: Abstraction has 65 states and 75 transitions. [2018-04-11 20:31:23,123 INFO L460 AbstractCegarLoop]: Interpolant automaton has 6 states. [2018-04-11 20:31:23,123 INFO L276 IsEmpty]: Start isEmpty. Operand 65 states and 75 transitions. [2018-04-11 20:31:23,123 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 24 [2018-04-11 20:31:23,124 INFO L347 BasicCegarLoop]: Found error trace [2018-04-11 20:31:23,124 INFO L355 BasicCegarLoop]: trace histogram [2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-04-11 20:31:23,124 INFO L408 AbstractCegarLoop]: === Iteration 8 === [cstrncpyErr3RequiresViolation, cstrncpyErr5RequiresViolation, cstrncpyErr4RequiresViolation, cstrncpyErr2RequiresViolation, cstrncpyErr0RequiresViolation, cstrncpyErr1RequiresViolation, mainErr1RequiresViolation, mainErr2EnsuresViolationMEMORY_LEAK, mainErr0RequiresViolation]=== [2018-04-11 20:31:23,124 INFO L82 PathProgramCache]: Analyzing trace with hash -2027798441, now seen corresponding path program 1 times [2018-04-11 20:31:23,124 INFO L213 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-04-11 20:31:23,124 INFO L68 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-04-11 20:31:23,125 INFO L119 rtionOrderModulation]: Craig nested/tree interpolation forces the following order [2018-04-11 20:31:23,125 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-04-11 20:31:23,125 INFO L119 rtionOrderModulation]: Craig nested/tree interpolation forces the following order [2018-04-11 20:31:23,135 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-04-11 20:31:23,136 WARN L137 erpolLogProxyWrapper]: Using partial proofs (cut at CNF-level). Set option :produce-proofs to true to get complete proofs. [2018-04-11 20:31:23,227 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 3 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-04-11 20:31:23,228 INFO L320 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-04-11 20:31:23,228 INFO L335 seRefinementStrategy]: Number of different interpolants: perfect sequences [10] imperfect sequences [] total 10 [2018-04-11 20:31:23,228 INFO L442 AbstractCegarLoop]: Interpolant automaton has 10 states [2018-04-11 20:31:23,228 INFO L132 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2018-04-11 20:31:23,228 INFO L133 InterpolantAutomaton]: CoverageRelationStatistics Valid=19, Invalid=71, Unknown=0, NotChecked=0, Total=90 [2018-04-11 20:31:23,228 INFO L87 Difference]: Start difference. First operand 65 states and 75 transitions. Second operand 10 states. [2018-04-11 20:31:23,433 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-04-11 20:31:23,433 INFO L93 Difference]: Finished difference Result 121 states and 137 transitions. [2018-04-11 20:31:23,433 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2018-04-11 20:31:23,433 INFO L78 Accepts]: Start accepts. Automaton has 10 states. Word has length 23 [2018-04-11 20:31:23,434 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-04-11 20:31:23,434 INFO L225 Difference]: With dead ends: 121 [2018-04-11 20:31:23,435 INFO L226 Difference]: Without dead ends: 121 [2018-04-11 20:31:23,435 INFO L567 BasicCegarLoop]: 0 DeclaredPredicates, 16 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 14 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 29 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=51, Invalid=189, Unknown=0, NotChecked=0, Total=240 [2018-04-11 20:31:23,435 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 121 states. [2018-04-11 20:31:23,440 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 121 to 86. [2018-04-11 20:31:23,441 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 86 states. [2018-04-11 20:31:23,441 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 86 states to 86 states and 101 transitions. [2018-04-11 20:31:23,442 INFO L78 Accepts]: Start accepts. Automaton has 86 states and 101 transitions. Word has length 23 [2018-04-11 20:31:23,442 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-04-11 20:31:23,442 INFO L459 AbstractCegarLoop]: Abstraction has 86 states and 101 transitions. [2018-04-11 20:31:23,442 INFO L460 AbstractCegarLoop]: Interpolant automaton has 10 states. [2018-04-11 20:31:23,442 INFO L276 IsEmpty]: Start isEmpty. Operand 86 states and 101 transitions. [2018-04-11 20:31:23,443 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 24 [2018-04-11 20:31:23,443 INFO L347 BasicCegarLoop]: Found error trace [2018-04-11 20:31:23,443 INFO L355 BasicCegarLoop]: trace histogram [2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-04-11 20:31:23,445 INFO L408 AbstractCegarLoop]: === Iteration 9 === [cstrncpyErr3RequiresViolation, cstrncpyErr5RequiresViolation, cstrncpyErr4RequiresViolation, cstrncpyErr2RequiresViolation, cstrncpyErr0RequiresViolation, cstrncpyErr1RequiresViolation, mainErr1RequiresViolation, mainErr2EnsuresViolationMEMORY_LEAK, mainErr0RequiresViolation]=== [2018-04-11 20:31:23,445 INFO L82 PathProgramCache]: Analyzing trace with hash 678820953, now seen corresponding path program 1 times [2018-04-11 20:31:23,445 INFO L213 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-04-11 20:31:23,445 INFO L68 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-04-11 20:31:23,446 INFO L119 rtionOrderModulation]: Craig nested/tree interpolation forces the following order [2018-04-11 20:31:23,446 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-04-11 20:31:23,446 INFO L119 rtionOrderModulation]: Craig nested/tree interpolation forces the following order [2018-04-11 20:31:23,457 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-04-11 20:31:23,458 WARN L137 erpolLogProxyWrapper]: Using partial proofs (cut at CNF-level). Set option :produce-proofs to true to get complete proofs. [2018-04-11 20:31:23,597 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 0 proven. 3 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-04-11 20:31:23,597 INFO L308 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2018-04-11 20:31:23,598 INFO L213 ckRefinementStrategy]: Switched to mode Z3_FP No working directory specified, using /home/ultimate/work/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 2 with z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 2 with z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:12000 [2018-04-11 20:31:23,604 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-04-11 20:31:23,628 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-04-11 20:31:23,636 INFO L270 TraceCheckSpWp]: Computing forward predicates... [2018-04-11 20:31:23,669 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 14 treesize of output 11 [2018-04-11 20:31:23,676 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 11 treesize of output 10 [2018-04-11 20:31:23,676 INFO L267 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 1 xjuncts. [2018-04-11 20:31:23,678 INFO L267 ElimStorePlain]: Start of recursive call 2: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-04-11 20:31:23,683 INFO L267 ElimStorePlain]: Start of recursive call 1: 1 dim-0 vars, 1 dim-2 vars, End of recursive call: 1 dim-0 vars, and 1 xjuncts. [2018-04-11 20:31:23,683 INFO L202 ElimStorePlain]: Needed 3 recursive calls to eliminate 2 variables, input treesize:25, output treesize:21 [2018-04-11 20:31:23,831 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 20 treesize of output 16 [2018-04-11 20:31:23,848 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 0 new quantified variables, introduced 1 case distinctions, treesize of input 16 treesize of output 13 [2018-04-11 20:31:23,848 INFO L267 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 2 xjuncts. [2018-04-11 20:31:23,851 INFO L267 ElimStorePlain]: Start of recursive call 2: 1 dim-1 vars, End of recursive call: and 2 xjuncts. [2018-04-11 20:31:23,860 INFO L267 ElimStorePlain]: Start of recursive call 1: 2 dim-0 vars, 1 dim-2 vars, End of recursive call: and 2 xjuncts. [2018-04-11 20:31:23,860 INFO L202 ElimStorePlain]: Needed 3 recursive calls to eliminate 3 variables, input treesize:38, output treesize:29 [2018-04-11 20:31:23,897 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 0 proven. 3 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-04-11 20:31:23,915 INFO L320 seRefinementStrategy]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2018-04-11 20:31:23,915 INFO L335 seRefinementStrategy]: Number of different interpolants: perfect sequences [] imperfect sequences [11, 9] total 16 [2018-04-11 20:31:23,916 INFO L442 AbstractCegarLoop]: Interpolant automaton has 17 states [2018-04-11 20:31:23,916 INFO L132 InterpolantAutomaton]: Constructing interpolant automaton starting with 17 interpolants. [2018-04-11 20:31:23,916 INFO L133 InterpolantAutomaton]: CoverageRelationStatistics Valid=36, Invalid=236, Unknown=0, NotChecked=0, Total=272 [2018-04-11 20:31:23,916 INFO L87 Difference]: Start difference. First operand 86 states and 101 transitions. Second operand 17 states. [2018-04-11 20:31:26,629 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-04-11 20:31:26,629 INFO L93 Difference]: Finished difference Result 115 states and 132 transitions. [2018-04-11 20:31:26,629 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 16 states. [2018-04-11 20:31:26,629 INFO L78 Accepts]: Start accepts. Automaton has 17 states. Word has length 23 [2018-04-11 20:31:26,629 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-04-11 20:31:26,631 INFO L225 Difference]: With dead ends: 115 [2018-04-11 20:31:26,631 INFO L226 Difference]: Without dead ends: 115 [2018-04-11 20:31:26,631 INFO L567 BasicCegarLoop]: 0 DeclaredPredicates, 42 GetRequests, 18 SyntacticMatches, 0 SemanticMatches, 24 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 83 ImplicationChecksByTransitivity, 0.4s TimeCoverageRelationStatistics Valid=98, Invalid=552, Unknown=0, NotChecked=0, Total=650 [2018-04-11 20:31:26,631 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 115 states. [2018-04-11 20:31:26,635 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 115 to 90. [2018-04-11 20:31:26,635 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 90 states. [2018-04-11 20:31:26,635 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 90 states to 90 states and 107 transitions. [2018-04-11 20:31:26,636 INFO L78 Accepts]: Start accepts. Automaton has 90 states and 107 transitions. Word has length 23 [2018-04-11 20:31:26,636 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-04-11 20:31:26,636 INFO L459 AbstractCegarLoop]: Abstraction has 90 states and 107 transitions. [2018-04-11 20:31:26,636 INFO L460 AbstractCegarLoop]: Interpolant automaton has 17 states. [2018-04-11 20:31:26,636 INFO L276 IsEmpty]: Start isEmpty. Operand 90 states and 107 transitions. [2018-04-11 20:31:26,636 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 25 [2018-04-11 20:31:26,636 INFO L347 BasicCegarLoop]: Found error trace [2018-04-11 20:31:26,636 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] [2018-04-11 20:31:26,636 INFO L408 AbstractCegarLoop]: === Iteration 10 === [cstrncpyErr3RequiresViolation, cstrncpyErr5RequiresViolation, cstrncpyErr4RequiresViolation, cstrncpyErr2RequiresViolation, cstrncpyErr0RequiresViolation, cstrncpyErr1RequiresViolation, mainErr1RequiresViolation, mainErr2EnsuresViolationMEMORY_LEAK, mainErr0RequiresViolation]=== [2018-04-11 20:31:26,637 INFO L82 PathProgramCache]: Analyzing trace with hash -1161751038, now seen corresponding path program 1 times [2018-04-11 20:31:26,637 INFO L213 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-04-11 20:31:26,637 INFO L68 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-04-11 20:31:26,637 INFO L119 rtionOrderModulation]: Craig nested/tree interpolation forces the following order [2018-04-11 20:31:26,637 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-04-11 20:31:26,637 INFO L119 rtionOrderModulation]: Craig nested/tree interpolation forces the following order [2018-04-11 20:31:26,645 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-04-11 20:31:26,646 WARN L137 erpolLogProxyWrapper]: Using partial proofs (cut at CNF-level). Set option :produce-proofs to true to get complete proofs. [2018-04-11 20:31:26,682 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-04-11 20:31:26,682 INFO L320 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-04-11 20:31:26,682 INFO L335 seRefinementStrategy]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2018-04-11 20:31:26,682 INFO L442 AbstractCegarLoop]: Interpolant automaton has 6 states [2018-04-11 20:31:26,683 INFO L132 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2018-04-11 20:31:26,683 INFO L133 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2018-04-11 20:31:26,683 INFO L87 Difference]: Start difference. First operand 90 states and 107 transitions. Second operand 6 states. [2018-04-11 20:31:26,737 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-04-11 20:31:26,738 INFO L93 Difference]: Finished difference Result 104 states and 119 transitions. [2018-04-11 20:31:26,738 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2018-04-11 20:31:26,738 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 24 [2018-04-11 20:31:26,738 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-04-11 20:31:26,739 INFO L225 Difference]: With dead ends: 104 [2018-04-11 20:31:26,739 INFO L226 Difference]: Without dead ends: 104 [2018-04-11 20:31:26,739 INFO L567 BasicCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=23, Invalid=49, Unknown=0, NotChecked=0, Total=72 [2018-04-11 20:31:26,739 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 104 states. [2018-04-11 20:31:26,745 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 104 to 89. [2018-04-11 20:31:26,745 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 89 states. [2018-04-11 20:31:26,746 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 89 states to 89 states and 104 transitions. [2018-04-11 20:31:26,746 INFO L78 Accepts]: Start accepts. Automaton has 89 states and 104 transitions. Word has length 24 [2018-04-11 20:31:26,746 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-04-11 20:31:26,746 INFO L459 AbstractCegarLoop]: Abstraction has 89 states and 104 transitions. [2018-04-11 20:31:26,746 INFO L460 AbstractCegarLoop]: Interpolant automaton has 6 states. [2018-04-11 20:31:26,746 INFO L276 IsEmpty]: Start isEmpty. Operand 89 states and 104 transitions. [2018-04-11 20:31:26,747 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 25 [2018-04-11 20:31:26,747 INFO L347 BasicCegarLoop]: Found error trace [2018-04-11 20:31:26,747 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] [2018-04-11 20:31:26,747 INFO L408 AbstractCegarLoop]: === Iteration 11 === [cstrncpyErr3RequiresViolation, cstrncpyErr5RequiresViolation, cstrncpyErr4RequiresViolation, cstrncpyErr2RequiresViolation, cstrncpyErr0RequiresViolation, cstrncpyErr1RequiresViolation, mainErr1RequiresViolation, mainErr2EnsuresViolationMEMORY_LEAK, mainErr0RequiresViolation]=== [2018-04-11 20:31:26,748 INFO L82 PathProgramCache]: Analyzing trace with hash -1161751037, now seen corresponding path program 1 times [2018-04-11 20:31:26,748 INFO L213 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-04-11 20:31:26,748 INFO L68 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-04-11 20:31:26,748 INFO L119 rtionOrderModulation]: Craig nested/tree interpolation forces the following order [2018-04-11 20:31:26,748 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-04-11 20:31:26,749 INFO L119 rtionOrderModulation]: Craig nested/tree interpolation forces the following order [2018-04-11 20:31:26,758 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-04-11 20:31:26,758 WARN L137 erpolLogProxyWrapper]: Using partial proofs (cut at CNF-level). Set option :produce-proofs to true to get complete proofs. [2018-04-11 20:31:26,825 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-04-11 20:31:26,826 INFO L320 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-04-11 20:31:26,826 INFO L335 seRefinementStrategy]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2018-04-11 20:31:26,826 INFO L442 AbstractCegarLoop]: Interpolant automaton has 8 states [2018-04-11 20:31:26,826 INFO L132 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2018-04-11 20:31:26,826 INFO L133 InterpolantAutomaton]: CoverageRelationStatistics Valid=13, Invalid=43, Unknown=0, NotChecked=0, Total=56 [2018-04-11 20:31:26,826 INFO L87 Difference]: Start difference. First operand 89 states and 104 transitions. Second operand 8 states. [2018-04-11 20:31:26,897 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-04-11 20:31:26,898 INFO L93 Difference]: Finished difference Result 112 states and 123 transitions. [2018-04-11 20:31:26,898 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2018-04-11 20:31:26,898 INFO L78 Accepts]: Start accepts. Automaton has 8 states. Word has length 24 [2018-04-11 20:31:26,898 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-04-11 20:31:26,899 INFO L225 Difference]: With dead ends: 112 [2018-04-11 20:31:26,899 INFO L226 Difference]: Without dead ends: 112 [2018-04-11 20:31:26,899 INFO L567 BasicCegarLoop]: 0 DeclaredPredicates, 12 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 4 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=33, Invalid=99, Unknown=0, NotChecked=0, Total=132 [2018-04-11 20:31:26,899 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 112 states. [2018-04-11 20:31:26,903 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 112 to 105. [2018-04-11 20:31:26,903 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 105 states. [2018-04-11 20:31:26,904 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 105 states to 105 states and 117 transitions. [2018-04-11 20:31:26,904 INFO L78 Accepts]: Start accepts. Automaton has 105 states and 117 transitions. Word has length 24 [2018-04-11 20:31:26,904 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-04-11 20:31:26,904 INFO L459 AbstractCegarLoop]: Abstraction has 105 states and 117 transitions. [2018-04-11 20:31:26,905 INFO L460 AbstractCegarLoop]: Interpolant automaton has 8 states. [2018-04-11 20:31:26,905 INFO L276 IsEmpty]: Start isEmpty. Operand 105 states and 117 transitions. [2018-04-11 20:31:26,905 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 25 [2018-04-11 20:31:26,905 INFO L347 BasicCegarLoop]: Found error trace [2018-04-11 20:31:26,906 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] [2018-04-11 20:31:26,906 INFO L408 AbstractCegarLoop]: === Iteration 12 === [cstrncpyErr3RequiresViolation, cstrncpyErr5RequiresViolation, cstrncpyErr4RequiresViolation, cstrncpyErr2RequiresViolation, cstrncpyErr0RequiresViolation, cstrncpyErr1RequiresViolation, mainErr1RequiresViolation, mainErr2EnsuresViolationMEMORY_LEAK, mainErr0RequiresViolation]=== [2018-04-11 20:31:26,906 INFO L82 PathProgramCache]: Analyzing trace with hash 1544868357, now seen corresponding path program 1 times [2018-04-11 20:31:26,906 INFO L213 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-04-11 20:31:26,906 INFO L68 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-04-11 20:31:26,907 INFO L119 rtionOrderModulation]: Craig nested/tree interpolation forces the following order [2018-04-11 20:31:26,907 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-04-11 20:31:26,907 INFO L119 rtionOrderModulation]: Craig nested/tree interpolation forces the following order [2018-04-11 20:31:26,914 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-04-11 20:31:26,915 WARN L137 erpolLogProxyWrapper]: Using partial proofs (cut at CNF-level). Set option :produce-proofs to true to get complete proofs. [2018-04-11 20:31:27,086 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-04-11 20:31:27,087 INFO L320 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-04-11 20:31:27,087 INFO L335 seRefinementStrategy]: Number of different interpolants: perfect sequences [11] imperfect sequences [] total 11 [2018-04-11 20:31:27,087 INFO L442 AbstractCegarLoop]: Interpolant automaton has 12 states [2018-04-11 20:31:27,087 INFO L132 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2018-04-11 20:31:27,088 INFO L133 InterpolantAutomaton]: CoverageRelationStatistics Valid=22, Invalid=110, Unknown=0, NotChecked=0, Total=132 [2018-04-11 20:31:27,088 INFO L87 Difference]: Start difference. First operand 105 states and 117 transitions. Second operand 12 states. [2018-04-11 20:31:27,299 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-04-11 20:31:27,299 INFO L93 Difference]: Finished difference Result 121 states and 135 transitions. [2018-04-11 20:31:27,299 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2018-04-11 20:31:27,299 INFO L78 Accepts]: Start accepts. Automaton has 12 states. Word has length 24 [2018-04-11 20:31:27,300 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-04-11 20:31:27,300 INFO L225 Difference]: With dead ends: 121 [2018-04-11 20:31:27,300 INFO L226 Difference]: Without dead ends: 121 [2018-04-11 20:31:27,300 INFO L567 BasicCegarLoop]: 0 DeclaredPredicates, 18 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 17 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 26 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=59, Invalid=283, Unknown=0, NotChecked=0, Total=342 [2018-04-11 20:31:27,300 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 121 states. [2018-04-11 20:31:27,303 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 121 to 113. [2018-04-11 20:31:27,303 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 113 states. [2018-04-11 20:31:27,304 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 113 states to 113 states and 127 transitions. [2018-04-11 20:31:27,304 INFO L78 Accepts]: Start accepts. Automaton has 113 states and 127 transitions. Word has length 24 [2018-04-11 20:31:27,304 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-04-11 20:31:27,304 INFO L459 AbstractCegarLoop]: Abstraction has 113 states and 127 transitions. [2018-04-11 20:31:27,304 INFO L460 AbstractCegarLoop]: Interpolant automaton has 12 states. [2018-04-11 20:31:27,304 INFO L276 IsEmpty]: Start isEmpty. Operand 113 states and 127 transitions. [2018-04-11 20:31:27,305 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 25 [2018-04-11 20:31:27,305 INFO L347 BasicCegarLoop]: Found error trace [2018-04-11 20:31:27,305 INFO L355 BasicCegarLoop]: trace histogram [2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-04-11 20:31:27,305 INFO L408 AbstractCegarLoop]: === Iteration 13 === [cstrncpyErr3RequiresViolation, cstrncpyErr5RequiresViolation, cstrncpyErr4RequiresViolation, cstrncpyErr2RequiresViolation, cstrncpyErr0RequiresViolation, cstrncpyErr1RequiresViolation, mainErr1RequiresViolation, mainErr2EnsuresViolationMEMORY_LEAK, mainErr0RequiresViolation]=== [2018-04-11 20:31:27,305 INFO L82 PathProgramCache]: Analyzing trace with hash -431386979, now seen corresponding path program 1 times [2018-04-11 20:31:27,305 INFO L213 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-04-11 20:31:27,306 INFO L68 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-04-11 20:31:27,306 INFO L119 rtionOrderModulation]: Craig nested/tree interpolation forces the following order [2018-04-11 20:31:27,306 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-04-11 20:31:27,306 INFO L119 rtionOrderModulation]: Craig nested/tree interpolation forces the following order [2018-04-11 20:31:27,316 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-04-11 20:31:27,317 WARN L137 erpolLogProxyWrapper]: Using partial proofs (cut at CNF-level). Set option :produce-proofs to true to get complete proofs. [2018-04-11 20:31:27,415 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 0 proven. 4 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-04-11 20:31:27,415 INFO L308 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2018-04-11 20:31:27,415 INFO L213 ckRefinementStrategy]: Switched to mode Z3_FP No working directory specified, using /home/ultimate/work/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 3 with z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 3 with z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:12000 [2018-04-11 20:31:27,420 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-04-11 20:31:27,436 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-04-11 20:31:27,439 INFO L270 TraceCheckSpWp]: Computing forward predicates... [2018-04-11 20:31:27,442 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 6 treesize of output 5 [2018-04-11 20:31:27,442 INFO L267 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2018-04-11 20:31:27,446 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 6 treesize of output 5 [2018-04-11 20:31:27,446 INFO L267 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 1 xjuncts. [2018-04-11 20:31:27,449 INFO L267 ElimStorePlain]: Start of recursive call 1: 2 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-04-11 20:31:27,449 INFO L202 ElimStorePlain]: Needed 3 recursive calls to eliminate 2 variables, input treesize:16, output treesize:14 [2018-04-11 20:31:27,473 INFO L700 Elim1Store]: detected not equals via solver [2018-04-11 20:31:27,473 INFO L700 Elim1Store]: detected not equals via solver [2018-04-11 20:31:27,474 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 2 select indices, 2 select index equivalence classes, 2 disjoint index pairs (out of 1 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 11 treesize of output 4 [2018-04-11 20:31:27,474 INFO L267 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2018-04-11 20:31:27,479 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 12 treesize of output 15 [2018-04-11 20:31:27,479 INFO L267 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 1 xjuncts. [2018-04-11 20:31:27,482 INFO L267 ElimStorePlain]: Start of recursive call 1: 1 dim-0 vars, 2 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-04-11 20:31:27,483 INFO L202 ElimStorePlain]: Needed 3 recursive calls to eliminate 3 variables, input treesize:25, output treesize:13 [2018-04-11 20:31:27,575 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 0 proven. 4 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-04-11 20:31:27,604 INFO L320 seRefinementStrategy]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2018-04-11 20:31:27,604 INFO L335 seRefinementStrategy]: Number of different interpolants: perfect sequences [] imperfect sequences [9, 10] total 18 [2018-04-11 20:31:27,604 INFO L442 AbstractCegarLoop]: Interpolant automaton has 19 states [2018-04-11 20:31:27,604 INFO L132 InterpolantAutomaton]: Constructing interpolant automaton starting with 19 interpolants. [2018-04-11 20:31:27,605 INFO L133 InterpolantAutomaton]: CoverageRelationStatistics Valid=47, Invalid=295, Unknown=0, NotChecked=0, Total=342 [2018-04-11 20:31:27,605 INFO L87 Difference]: Start difference. First operand 113 states and 127 transitions. Second operand 19 states. [2018-04-11 20:31:27,979 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-04-11 20:31:27,980 INFO L93 Difference]: Finished difference Result 133 states and 150 transitions. [2018-04-11 20:31:27,980 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2018-04-11 20:31:27,980 INFO L78 Accepts]: Start accepts. Automaton has 19 states. Word has length 24 [2018-04-11 20:31:27,980 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-04-11 20:31:27,981 INFO L225 Difference]: With dead ends: 133 [2018-04-11 20:31:27,981 INFO L226 Difference]: Without dead ends: 133 [2018-04-11 20:31:27,981 INFO L567 BasicCegarLoop]: 0 DeclaredPredicates, 42 GetRequests, 16 SyntacticMatches, 0 SemanticMatches, 26 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 94 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=115, Invalid=641, Unknown=0, NotChecked=0, Total=756 [2018-04-11 20:31:27,982 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 133 states. [2018-04-11 20:31:27,984 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 133 to 112. [2018-04-11 20:31:27,985 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 112 states. [2018-04-11 20:31:27,986 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 112 states to 112 states and 126 transitions. [2018-04-11 20:31:27,986 INFO L78 Accepts]: Start accepts. Automaton has 112 states and 126 transitions. Word has length 24 [2018-04-11 20:31:27,986 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-04-11 20:31:27,986 INFO L459 AbstractCegarLoop]: Abstraction has 112 states and 126 transitions. [2018-04-11 20:31:27,986 INFO L460 AbstractCegarLoop]: Interpolant automaton has 19 states. [2018-04-11 20:31:27,986 INFO L276 IsEmpty]: Start isEmpty. Operand 112 states and 126 transitions. [2018-04-11 20:31:27,994 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 27 [2018-04-11 20:31:27,994 INFO L347 BasicCegarLoop]: Found error trace [2018-04-11 20:31:27,994 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] [2018-04-11 20:31:27,994 INFO L408 AbstractCegarLoop]: === Iteration 14 === [cstrncpyErr3RequiresViolation, cstrncpyErr5RequiresViolation, cstrncpyErr4RequiresViolation, cstrncpyErr2RequiresViolation, cstrncpyErr0RequiresViolation, cstrncpyErr1RequiresViolation, mainErr1RequiresViolation, mainErr2EnsuresViolationMEMORY_LEAK, mainErr0RequiresViolation]=== [2018-04-11 20:31:27,994 INFO L82 PathProgramCache]: Analyzing trace with hash 675191908, now seen corresponding path program 1 times [2018-04-11 20:31:27,994 INFO L213 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-04-11 20:31:27,994 INFO L68 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-04-11 20:31:27,995 INFO L119 rtionOrderModulation]: Craig nested/tree interpolation forces the following order [2018-04-11 20:31:27,995 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-04-11 20:31:27,995 INFO L119 rtionOrderModulation]: Craig nested/tree interpolation forces the following order [2018-04-11 20:31:27,999 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-04-11 20:31:28,000 WARN L137 erpolLogProxyWrapper]: Using partial proofs (cut at CNF-level). Set option :produce-proofs to true to get complete proofs. [2018-04-11 20:31:28,016 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-04-11 20:31:28,017 INFO L320 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-04-11 20:31:28,017 INFO L335 seRefinementStrategy]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2018-04-11 20:31:28,017 INFO L442 AbstractCegarLoop]: Interpolant automaton has 5 states [2018-04-11 20:31:28,017 INFO L132 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2018-04-11 20:31:28,017 INFO L133 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2018-04-11 20:31:28,017 INFO L87 Difference]: Start difference. First operand 112 states and 126 transitions. Second operand 5 states. [2018-04-11 20:31:28,034 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-04-11 20:31:28,035 INFO L93 Difference]: Finished difference Result 118 states and 130 transitions. [2018-04-11 20:31:28,035 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2018-04-11 20:31:28,035 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 26 [2018-04-11 20:31:28,035 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-04-11 20:31:28,036 INFO L225 Difference]: With dead ends: 118 [2018-04-11 20:31:28,036 INFO L226 Difference]: Without dead ends: 112 [2018-04-11 20:31:28,037 INFO L567 BasicCegarLoop]: 0 DeclaredPredicates, 6 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2018-04-11 20:31:28,037 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 112 states. [2018-04-11 20:31:28,039 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 112 to 112. [2018-04-11 20:31:28,040 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 112 states. [2018-04-11 20:31:28,041 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 112 states to 112 states and 124 transitions. [2018-04-11 20:31:28,041 INFO L78 Accepts]: Start accepts. Automaton has 112 states and 124 transitions. Word has length 26 [2018-04-11 20:31:28,041 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-04-11 20:31:28,041 INFO L459 AbstractCegarLoop]: Abstraction has 112 states and 124 transitions. [2018-04-11 20:31:28,041 INFO L460 AbstractCegarLoop]: Interpolant automaton has 5 states. [2018-04-11 20:31:28,041 INFO L276 IsEmpty]: Start isEmpty. Operand 112 states and 124 transitions. [2018-04-11 20:31:28,042 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 29 [2018-04-11 20:31:28,042 INFO L347 BasicCegarLoop]: Found error trace [2018-04-11 20:31:28,042 INFO L355 BasicCegarLoop]: trace histogram [3, 3, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-04-11 20:31:28,042 INFO L408 AbstractCegarLoop]: === Iteration 15 === [cstrncpyErr3RequiresViolation, cstrncpyErr5RequiresViolation, cstrncpyErr4RequiresViolation, cstrncpyErr2RequiresViolation, cstrncpyErr0RequiresViolation, cstrncpyErr1RequiresViolation, mainErr1RequiresViolation, mainErr2EnsuresViolationMEMORY_LEAK, mainErr0RequiresViolation]=== [2018-04-11 20:31:28,043 INFO L82 PathProgramCache]: Analyzing trace with hash 1936618715, now seen corresponding path program 2 times [2018-04-11 20:31:28,043 INFO L213 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-04-11 20:31:28,043 INFO L68 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-04-11 20:31:28,043 INFO L119 rtionOrderModulation]: Craig nested/tree interpolation forces the following order [2018-04-11 20:31:28,044 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-04-11 20:31:28,044 INFO L119 rtionOrderModulation]: Craig nested/tree interpolation forces the following order [2018-04-11 20:31:28,053 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-04-11 20:31:28,054 WARN L137 erpolLogProxyWrapper]: Using partial proofs (cut at CNF-level). Set option :produce-proofs to true to get complete proofs. [2018-04-11 20:31:28,361 INFO L134 CoverageAnalysis]: Checked inductivity of 11 backedges. 0 proven. 11 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-04-11 20:31:28,361 INFO L308 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2018-04-11 20:31:28,361 INFO L213 ckRefinementStrategy]: Switched to mode Z3_FP No working directory specified, using /home/ultimate/work/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 4 with z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 4 with z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:12000 [2018-04-11 20:31:28,369 INFO L103 rtionOrderModulation]: Keeping assertion order OUTSIDE_LOOP_FIRST1 [2018-04-11 20:31:28,390 INFO L242 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2018-04-11 20:31:28,391 INFO L243 tOrderPrioritization]: Conjunction of SSA is unsat [2018-04-11 20:31:28,393 INFO L270 TraceCheckSpWp]: Computing forward predicates... [2018-04-11 20:31:28,396 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 6 treesize of output 5 [2018-04-11 20:31:28,396 INFO L267 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2018-04-11 20:31:28,397 INFO L267 ElimStorePlain]: Start of recursive call 1: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-04-11 20:31:28,397 INFO L202 ElimStorePlain]: Needed 2 recursive calls to eliminate 1 variables, input treesize:6, output treesize:5 [2018-04-11 20:31:28,414 INFO L700 Elim1Store]: detected not equals via solver [2018-04-11 20:31:28,415 INFO L700 Elim1Store]: detected not equals via solver [2018-04-11 20:31:28,415 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 2 select indices, 2 select index equivalence classes, 2 disjoint index pairs (out of 1 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 11 treesize of output 4 [2018-04-11 20:31:28,416 INFO L267 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2018-04-11 20:31:28,420 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 6 treesize of output 5 [2018-04-11 20:31:28,420 INFO L267 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 1 xjuncts. [2018-04-11 20:31:28,423 INFO L267 ElimStorePlain]: Start of recursive call 1: 2 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-04-11 20:31:28,424 INFO L202 ElimStorePlain]: Needed 3 recursive calls to eliminate 2 variables, input treesize:20, output treesize:13 [2018-04-11 20:31:28,459 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 16 treesize of output 13 [2018-04-11 20:31:28,464 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 13 treesize of output 12 [2018-04-11 20:31:28,464 INFO L267 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 1 xjuncts. [2018-04-11 20:31:28,466 INFO L267 ElimStorePlain]: Start of recursive call 2: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-04-11 20:31:28,470 INFO L267 ElimStorePlain]: Start of recursive call 1: 1 dim-0 vars, 1 dim-2 vars, End of recursive call: 1 dim-0 vars, and 1 xjuncts. [2018-04-11 20:31:28,471 INFO L202 ElimStorePlain]: Needed 3 recursive calls to eliminate 2 variables, input treesize:27, output treesize:23 [2018-04-11 20:31:28,602 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 24 treesize of output 25 [2018-04-11 20:31:28,608 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 8 treesize of output 7 [2018-04-11 20:31:28,608 INFO L267 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 1 xjuncts. [2018-04-11 20:31:28,611 INFO L267 ElimStorePlain]: Start of recursive call 2: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-04-11 20:31:28,616 INFO L267 ElimStorePlain]: Start of recursive call 1: 4 dim-0 vars, 1 dim-2 vars, End of recursive call: 1 dim-0 vars, and 1 xjuncts. [2018-04-11 20:31:28,617 INFO L202 ElimStorePlain]: Needed 3 recursive calls to eliminate 5 variables, input treesize:37, output treesize:22 [2018-04-11 20:31:28,670 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 22 treesize of output 18 [2018-04-11 20:31:28,674 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 18 treesize of output 15 [2018-04-11 20:31:28,675 INFO L267 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 2 xjuncts. [2018-04-11 20:31:28,677 INFO L267 ElimStorePlain]: Start of recursive call 2: 1 dim-1 vars, End of recursive call: and 2 xjuncts. [2018-04-11 20:31:28,685 INFO L267 ElimStorePlain]: Start of recursive call 1: 1 dim-0 vars, 1 dim-2 vars, End of recursive call: and 2 xjuncts. [2018-04-11 20:31:28,686 INFO L202 ElimStorePlain]: Needed 3 recursive calls to eliminate 2 variables, input treesize:36, output treesize:37 [2018-04-11 20:31:28,734 INFO L134 CoverageAnalysis]: Checked inductivity of 11 backedges. 0 proven. 11 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-04-11 20:31:28,751 INFO L320 seRefinementStrategy]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2018-04-11 20:31:28,752 INFO L335 seRefinementStrategy]: Number of different interpolants: perfect sequences [] imperfect sequences [15, 15] total 25 [2018-04-11 20:31:28,752 INFO L442 AbstractCegarLoop]: Interpolant automaton has 26 states [2018-04-11 20:31:28,752 INFO L132 InterpolantAutomaton]: Constructing interpolant automaton starting with 26 interpolants. [2018-04-11 20:31:28,755 INFO L133 InterpolantAutomaton]: CoverageRelationStatistics Valid=59, Invalid=591, Unknown=0, NotChecked=0, Total=650 [2018-04-11 20:31:28,755 INFO L87 Difference]: Start difference. First operand 112 states and 124 transitions. Second operand 26 states. [2018-04-11 20:31:29,591 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-04-11 20:31:29,591 INFO L93 Difference]: Finished difference Result 129 states and 144 transitions. [2018-04-11 20:31:29,591 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 20 states. [2018-04-11 20:31:29,592 INFO L78 Accepts]: Start accepts. Automaton has 26 states. Word has length 28 [2018-04-11 20:31:29,592 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-04-11 20:31:29,592 INFO L225 Difference]: With dead ends: 129 [2018-04-11 20:31:29,592 INFO L226 Difference]: Without dead ends: 129 [2018-04-11 20:31:29,593 INFO L567 BasicCegarLoop]: 0 DeclaredPredicates, 59 GetRequests, 17 SyntacticMatches, 1 SemanticMatches, 41 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 214 ImplicationChecksByTransitivity, 1.0s TimeCoverageRelationStatistics Valid=206, Invalid=1600, Unknown=0, NotChecked=0, Total=1806 [2018-04-11 20:31:29,593 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 129 states. [2018-04-11 20:31:29,596 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 129 to 105. [2018-04-11 20:31:29,597 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 105 states. [2018-04-11 20:31:29,597 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 105 states to 105 states and 115 transitions. [2018-04-11 20:31:29,597 INFO L78 Accepts]: Start accepts. Automaton has 105 states and 115 transitions. Word has length 28 [2018-04-11 20:31:29,597 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-04-11 20:31:29,597 INFO L459 AbstractCegarLoop]: Abstraction has 105 states and 115 transitions. [2018-04-11 20:31:29,597 INFO L460 AbstractCegarLoop]: Interpolant automaton has 26 states. [2018-04-11 20:31:29,597 INFO L276 IsEmpty]: Start isEmpty. Operand 105 states and 115 transitions. [2018-04-11 20:31:29,598 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 30 [2018-04-11 20:31:29,598 INFO L347 BasicCegarLoop]: Found error trace [2018-04-11 20:31:29,598 INFO L355 BasicCegarLoop]: trace histogram [2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-04-11 20:31:29,598 INFO L408 AbstractCegarLoop]: === Iteration 16 === [cstrncpyErr3RequiresViolation, cstrncpyErr5RequiresViolation, cstrncpyErr4RequiresViolation, cstrncpyErr2RequiresViolation, cstrncpyErr0RequiresViolation, cstrncpyErr1RequiresViolation, mainErr1RequiresViolation, mainErr2EnsuresViolationMEMORY_LEAK, mainErr0RequiresViolation]=== [2018-04-11 20:31:29,598 INFO L82 PathProgramCache]: Analyzing trace with hash 1902193704, now seen corresponding path program 1 times [2018-04-11 20:31:29,598 INFO L213 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-04-11 20:31:29,598 INFO L68 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-04-11 20:31:29,599 INFO L119 rtionOrderModulation]: Craig nested/tree interpolation forces the following order [2018-04-11 20:31:29,599 INFO L101 rtionOrderModulation]: Changing assertion order to NOT_INCREMENTALLY [2018-04-11 20:31:29,599 INFO L119 rtionOrderModulation]: Craig nested/tree interpolation forces the following order [2018-04-11 20:31:29,604 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-04-11 20:31:29,604 WARN L137 erpolLogProxyWrapper]: Using partial proofs (cut at CNF-level). Set option :produce-proofs to true to get complete proofs. [2018-04-11 20:31:29,805 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 0 proven. 4 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-04-11 20:31:29,805 INFO L308 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2018-04-11 20:31:29,805 INFO L213 ckRefinementStrategy]: Switched to mode Z3_FP No working directory specified, using /home/ultimate/work/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 5 with z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 5 with z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:12000 [2018-04-11 20:31:29,810 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-04-11 20:31:29,827 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-04-11 20:31:29,830 INFO L270 TraceCheckSpWp]: Computing forward predicates... [2018-04-11 20:31:29,834 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 6 treesize of output 5 [2018-04-11 20:31:29,835 INFO L267 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2018-04-11 20:31:29,843 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 6 treesize of output 5 [2018-04-11 20:31:29,843 INFO L267 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 1 xjuncts. [2018-04-11 20:31:29,847 INFO L267 ElimStorePlain]: Start of recursive call 1: 2 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-04-11 20:31:29,848 INFO L202 ElimStorePlain]: Needed 3 recursive calls to eliminate 2 variables, input treesize:16, output treesize:14 [2018-04-11 20:31:29,893 INFO L700 Elim1Store]: detected not equals via solver [2018-04-11 20:31:29,895 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 12 treesize of output 15 [2018-04-11 20:31:29,896 INFO L267 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2018-04-11 20:31:29,906 INFO L700 Elim1Store]: detected not equals via solver [2018-04-11 20:31:29,907 INFO L700 Elim1Store]: detected not equals via solver [2018-04-11 20:31:29,908 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 2 select indices, 2 select index equivalence classes, 2 disjoint index pairs (out of 1 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 11 treesize of output 4 [2018-04-11 20:31:29,908 INFO L267 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 1 xjuncts. [2018-04-11 20:31:29,912 INFO L267 ElimStorePlain]: Start of recursive call 1: 1 dim-0 vars, 2 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-04-11 20:31:29,913 INFO L202 ElimStorePlain]: Needed 3 recursive calls to eliminate 3 variables, input treesize:25, output treesize:13 [2018-04-11 20:31:30,133 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 0 proven. 4 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-04-11 20:31:30,150 INFO L320 seRefinementStrategy]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2018-04-11 20:31:30,150 INFO L335 seRefinementStrategy]: Number of different interpolants: perfect sequences [] imperfect sequences [14, 14] total 27 [2018-04-11 20:31:30,151 INFO L442 AbstractCegarLoop]: Interpolant automaton has 28 states [2018-04-11 20:31:30,151 INFO L132 InterpolantAutomaton]: Constructing interpolant automaton starting with 28 interpolants. [2018-04-11 20:31:30,151 INFO L133 InterpolantAutomaton]: CoverageRelationStatistics Valid=66, Invalid=690, Unknown=0, NotChecked=0, Total=756 [2018-04-11 20:31:30,151 INFO L87 Difference]: Start difference. First operand 105 states and 115 transitions. Second operand 28 states. [2018-04-11 20:31:31,145 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-04-11 20:31:31,145 INFO L93 Difference]: Finished difference Result 143 states and 158 transitions. [2018-04-11 20:31:31,145 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 29 states. [2018-04-11 20:31:31,146 INFO L78 Accepts]: Start accepts. Automaton has 28 states. Word has length 29 [2018-04-11 20:31:31,146 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-04-11 20:31:31,146 INFO L225 Difference]: With dead ends: 143 [2018-04-11 20:31:31,146 INFO L226 Difference]: Without dead ends: 143 [2018-04-11 20:31:31,147 INFO L567 BasicCegarLoop]: 0 DeclaredPredicates, 66 GetRequests, 16 SyntacticMatches, 0 SemanticMatches, 50 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 392 ImplicationChecksByTransitivity, 1.1s TimeCoverageRelationStatistics Valid=328, Invalid=2324, Unknown=0, NotChecked=0, Total=2652 [2018-04-11 20:31:31,147 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 143 states. [2018-04-11 20:31:31,149 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 143 to 96. [2018-04-11 20:31:31,149 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 96 states. [2018-04-11 20:31:31,149 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 96 states to 96 states and 103 transitions. [2018-04-11 20:31:31,149 INFO L78 Accepts]: Start accepts. Automaton has 96 states and 103 transitions. Word has length 29 [2018-04-11 20:31:31,149 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-04-11 20:31:31,149 INFO L459 AbstractCegarLoop]: Abstraction has 96 states and 103 transitions. [2018-04-11 20:31:31,149 INFO L460 AbstractCegarLoop]: Interpolant automaton has 28 states. [2018-04-11 20:31:31,149 INFO L276 IsEmpty]: Start isEmpty. Operand 96 states and 103 transitions. [2018-04-11 20:31:31,150 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 32 [2018-04-11 20:31:31,150 INFO L347 BasicCegarLoop]: Found error trace [2018-04-11 20:31:31,150 INFO L355 BasicCegarLoop]: trace histogram [2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-04-11 20:31:31,150 INFO L408 AbstractCegarLoop]: === Iteration 17 === [cstrncpyErr3RequiresViolation, cstrncpyErr5RequiresViolation, cstrncpyErr4RequiresViolation, cstrncpyErr2RequiresViolation, cstrncpyErr0RequiresViolation, cstrncpyErr1RequiresViolation, mainErr1RequiresViolation, mainErr2EnsuresViolationMEMORY_LEAK, mainErr0RequiresViolation]=== [2018-04-11 20:31:31,150 INFO L82 PathProgramCache]: Analyzing trace with hash 1749994402, now seen corresponding path program 1 times [2018-04-11 20:31:31,150 INFO L213 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-04-11 20:31:31,150 INFO L68 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-04-11 20:31:31,151 INFO L119 rtionOrderModulation]: Craig nested/tree interpolation forces the following order [2018-04-11 20:31:31,151 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-04-11 20:31:31,151 INFO L119 rtionOrderModulation]: Craig nested/tree interpolation forces the following order [2018-04-11 20:31:31,155 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-04-11 20:31:31,155 WARN L137 erpolLogProxyWrapper]: Using partial proofs (cut at CNF-level). Set option :produce-proofs to true to get complete proofs. [2018-04-11 20:31:31,213 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2018-04-11 20:31:31,213 INFO L320 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-04-11 20:31:31,213 INFO L335 seRefinementStrategy]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2018-04-11 20:31:31,213 INFO L442 AbstractCegarLoop]: Interpolant automaton has 6 states [2018-04-11 20:31:31,213 INFO L132 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2018-04-11 20:31:31,214 INFO L133 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2018-04-11 20:31:31,214 INFO L87 Difference]: Start difference. First operand 96 states and 103 transitions. Second operand 6 states. [2018-04-11 20:31:31,272 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-04-11 20:31:31,272 INFO L93 Difference]: Finished difference Result 95 states and 102 transitions. [2018-04-11 20:31:31,272 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2018-04-11 20:31:31,272 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 31 [2018-04-11 20:31:31,273 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-04-11 20:31:31,273 INFO L225 Difference]: With dead ends: 95 [2018-04-11 20:31:31,273 INFO L226 Difference]: Without dead ends: 0 [2018-04-11 20:31:31,273 INFO L567 BasicCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=17, Invalid=39, Unknown=0, NotChecked=0, Total=56 [2018-04-11 20:31:31,273 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2018-04-11 20:31:31,273 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2018-04-11 20:31:31,273 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 0 states. [2018-04-11 20:31:31,273 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2018-04-11 20:31:31,273 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 31 [2018-04-11 20:31:31,273 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-04-11 20:31:31,273 INFO L459 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2018-04-11 20:31:31,274 INFO L460 AbstractCegarLoop]: Interpolant automaton has 6 states. [2018-04-11 20:31:31,274 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2018-04-11 20:31:31,274 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2018-04-11 20:31:31,277 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 11.04 08:31:31 BoogieIcfgContainer [2018-04-11 20:31:31,277 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2018-04-11 20:31:31,278 INFO L168 Benchmark]: Toolchain (without parser) took 10071.76 ms. Allocated memory was 314.6 MB in the beginning and 692.6 MB in the end (delta: 378.0 MB). Free memory was 256.8 MB in the beginning and 251.9 MB in the end (delta: 4.9 MB). Peak memory consumption was 382.9 MB. Max. memory is 5.3 GB. [2018-04-11 20:31:31,279 INFO L168 Benchmark]: CDTParser took 0.10 ms. Allocated memory is still 314.6 MB. Free memory is still 284.5 MB. There was no memory consumed. Max. memory is 5.3 GB. [2018-04-11 20:31:31,279 INFO L168 Benchmark]: CACSL2BoogieTranslator took 252.37 ms. Allocated memory is still 314.6 MB. Free memory was 256.1 MB in the beginning and 232.3 MB in the end (delta: 23.8 MB). Peak memory consumption was 23.8 MB. Max. memory is 5.3 GB. [2018-04-11 20:31:31,280 INFO L168 Benchmark]: Boogie Preprocessor took 35.06 ms. Allocated memory is still 314.6 MB. Free memory was 232.3 MB in the beginning and 229.7 MB in the end (delta: 2.6 MB). Peak memory consumption was 2.6 MB. Max. memory is 5.3 GB. [2018-04-11 20:31:31,280 INFO L168 Benchmark]: RCFGBuilder took 393.93 ms. Allocated memory was 314.6 MB in the beginning and 377.0 MB in the end (delta: 62.4 MB). Free memory was 229.7 MB in the beginning and 311.0 MB in the end (delta: -81.4 MB). Peak memory consumption was 33.8 MB. Max. memory is 5.3 GB. [2018-04-11 20:31:31,280 INFO L168 Benchmark]: TraceAbstraction took 9387.89 ms. Allocated memory was 377.0 MB in the beginning and 692.6 MB in the end (delta: 315.6 MB). Free memory was 311.0 MB in the beginning and 251.9 MB in the end (delta: 59.1 MB). Peak memory consumption was 374.8 MB. Max. memory is 5.3 GB. [2018-04-11 20:31:31,282 INFO L344 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.10 ms. Allocated memory is still 314.6 MB. Free memory is still 284.5 MB. There was no memory consumed. Max. memory is 5.3 GB. * CACSL2BoogieTranslator took 252.37 ms. Allocated memory is still 314.6 MB. Free memory was 256.1 MB in the beginning and 232.3 MB in the end (delta: 23.8 MB). Peak memory consumption was 23.8 MB. Max. memory is 5.3 GB. * Boogie Preprocessor took 35.06 ms. Allocated memory is still 314.6 MB. Free memory was 232.3 MB in the beginning and 229.7 MB in the end (delta: 2.6 MB). Peak memory consumption was 2.6 MB. Max. memory is 5.3 GB. * RCFGBuilder took 393.93 ms. Allocated memory was 314.6 MB in the beginning and 377.0 MB in the end (delta: 62.4 MB). Free memory was 229.7 MB in the beginning and 311.0 MB in the end (delta: -81.4 MB). Peak memory consumption was 33.8 MB. Max. memory is 5.3 GB. * TraceAbstraction took 9387.89 ms. Allocated memory was 377.0 MB in the beginning and 692.6 MB in the end (delta: 315.6 MB). Free memory was 311.0 MB in the beginning and 251.9 MB in the end (delta: 59.1 MB). Peak memory consumption was 374.8 MB. Max. memory is 5.3 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - PositiveResult [Line: 548]: pointer dereference always succeeds For all program executions holds that pointer dereference always succeeds at this location - PositiveResult [Line: 552]: pointer dereference always succeeds For all program executions holds that pointer dereference always succeeds at this location - PositiveResult [Line: 552]: 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: 548]: pointer dereference always succeeds For all program executions holds that pointer dereference always succeeds at this location - PositiveResult [Line: 569]: pointer dereference always succeeds For all program executions holds that pointer dereference always succeeds at this location - PositiveResult [Line: 558]: all allocated memory was freed For all program executions holds that all allocated memory was freed at this location - PositiveResult [Line: 569]: pointer dereference always succeeds For all program executions holds that pointer dereference always succeeds at this location - AllSpecificationsHoldResult: All specifications hold 9 specifications checked. All of them hold - StatisticsResult: Ultimate Automizer benchmark data CFG has 6 procedures, 52 locations, 9 error locations. SAFE Result, 9.3s OverallTime, 17 OverallIterations, 3 TraceHistogramMax, 6.1s AutomataDifference, 0.0s DeadEndRemovalTime, 0.0s HoareAnnotationTime, HoareTripleCheckerStatistics: 588 SDtfs, 884 SDslu, 3298 SDs, 0 SdLazy, 2517 SolverSat, 273 SolverUnsat, 1 SolverUnknown, 0 SolverNotchecked, 3.6s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 335 GetRequests, 86 SyntacticMatches, 1 SemanticMatches, 248 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 892 ImplicationChecksByTransitivity, 3.8s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=113occurred in iteration=12, 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, 17 MinimizatonAttempts, 205 StatesRemovedByMinimization, 11 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TraceCheckStatistics: 0.0s SsaConstructionTime, 0.2s SatisfiabilityAnalysisTime, 2.6s InterpolantComputationTime, 483 NumberOfCodeBlocks, 483 NumberOfCodeBlocksAsserted, 22 NumberOfCheckSat, 462 ConstructedInterpolants, 15 QuantifiedInterpolants, 83380 SizeOfPredicates, 56 NumberOfNonLiveVariables, 649 ConjunctsInSsa, 178 ConjunctsInUnsatCore, 21 InterpolantComputations, 13 PerfectInterpolantSequences, 8/52 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/cstrncpy-alloca_true-valid-memsafety_true-termination.i_svcomp-DerefFreeMemtrack-32bit-Automizer_Camel.epf_AutomizerC.xml/Csv-Benchmark-0-2018-04-11_20-31-31-288.csv Written .csv to /home/ultimate/work/ultimate/releaseScripts/default/UAutomizer-linux/../../../releaseScripts/default/UAutomizer-linux/csv/cstrncpy-alloca_true-valid-memsafety_true-termination.i_svcomp-DerefFreeMemtrack-32bit-Automizer_Camel.epf_AutomizerC.xml/Csv-TraceAbstractionBenchmarks-0-2018-04-11_20-31-31-288.csv Received shutdown request...