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/memsafety/960521-1_true-valid-memsafety.i -------------------------------------------------------------------------------- This is Ultimate 0.1.23-666feb3-m [2018-04-11 10:27:22,655 INFO L170 SettingsManager]: Resetting all preferences to default values... [2018-04-11 10:27:22,656 INFO L174 SettingsManager]: Resetting UltimateCore preferences to default values [2018-04-11 10:27:22,666 INFO L177 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2018-04-11 10:27:22,666 INFO L174 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2018-04-11 10:27:22,667 INFO L174 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2018-04-11 10:27:22,668 INFO L174 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2018-04-11 10:27:22,669 INFO L174 SettingsManager]: Resetting LassoRanker preferences to default values [2018-04-11 10:27:22,671 INFO L174 SettingsManager]: Resetting Reaching Definitions preferences to default values [2018-04-11 10:27:22,671 INFO L174 SettingsManager]: Resetting SyntaxChecker preferences to default values [2018-04-11 10:27:22,672 INFO L177 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2018-04-11 10:27:22,672 INFO L174 SettingsManager]: Resetting LTL2Aut preferences to default values [2018-04-11 10:27:22,673 INFO L174 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2018-04-11 10:27:22,674 INFO L174 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2018-04-11 10:27:22,674 INFO L174 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2018-04-11 10:27:22,676 INFO L174 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2018-04-11 10:27:22,677 INFO L174 SettingsManager]: Resetting CodeCheck preferences to default values [2018-04-11 10:27:22,679 INFO L174 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2018-04-11 10:27:22,679 INFO L174 SettingsManager]: Resetting RCFGBuilder preferences to default values [2018-04-11 10:27:22,680 INFO L174 SettingsManager]: Resetting TraceAbstraction preferences to default values [2018-04-11 10:27:22,682 INFO L177 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2018-04-11 10:27:22,682 INFO L177 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2018-04-11 10:27:22,682 INFO L174 SettingsManager]: Resetting IcfgTransformer preferences to default values [2018-04-11 10:27:22,683 INFO L174 SettingsManager]: Resetting Boogie Printer preferences to default values [2018-04-11 10:27:22,684 INFO L174 SettingsManager]: Resetting Witness Printer preferences to default values [2018-04-11 10:27:22,685 INFO L177 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2018-04-11 10:27:22,685 INFO L174 SettingsManager]: Resetting CDTParser preferences to default values [2018-04-11 10:27:22,685 INFO L174 SettingsManager]: Resetting PEA to Boogie preferences to default values [2018-04-11 10:27:22,686 INFO L177 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2018-04-11 10:27:22,686 INFO L174 SettingsManager]: Resetting Witness Parser preferences to default values [2018-04-11 10:27:22,687 INFO L181 SettingsManager]: Finished resetting all preferences to default values... [2018-04-11 10:27:22,687 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 10:27:22,706 INFO L110 SettingsManager]: Loading preferences was successful [2018-04-11 10:27:22,706 INFO L112 SettingsManager]: Preferences different from defaults after loading the file: [2018-04-11 10:27:22,707 INFO L131 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2018-04-11 10:27:22,707 INFO L133 SettingsManager]: * Create parallel compositions if possible=false [2018-04-11 10:27:22,708 INFO L133 SettingsManager]: * Use SBE=true [2018-04-11 10:27:22,708 INFO L131 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2018-04-11 10:27:22,708 INFO L133 SettingsManager]: * sizeof long=4 [2018-04-11 10:27:22,708 INFO L133 SettingsManager]: * Check unreachability of error function in SV-COMP mode=false [2018-04-11 10:27:22,708 INFO L133 SettingsManager]: * Overapproximate operations on floating types=true [2018-04-11 10:27:22,708 INFO L133 SettingsManager]: * sizeof POINTER=4 [2018-04-11 10:27:22,709 INFO L133 SettingsManager]: * Check division by zero=IGNORE [2018-04-11 10:27:22,709 INFO L133 SettingsManager]: * Check for the main procedure if all allocated memory was freed=true [2018-04-11 10:27:22,709 INFO L133 SettingsManager]: * Bitprecise bitfields=true [2018-04-11 10:27:22,709 INFO L133 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2018-04-11 10:27:22,709 INFO L133 SettingsManager]: * sizeof long double=12 [2018-04-11 10:27:22,709 INFO L131 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2018-04-11 10:27:22,709 INFO L133 SettingsManager]: * Size of a code block=SequenceOfStatements [2018-04-11 10:27:22,710 INFO L133 SettingsManager]: * To the following directory=./dump/ [2018-04-11 10:27:22,710 INFO L133 SettingsManager]: * SMT solver=External_DefaultMode [2018-04-11 10:27:22,710 INFO L133 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2018-04-11 10:27:22,710 INFO L131 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2018-04-11 10:27:22,710 INFO L133 SettingsManager]: * Interpolant automaton=TWOTRACK [2018-04-11 10:27:22,710 INFO L133 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2018-04-11 10:27:22,710 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 10:27:22,739 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2018-04-11 10:27:22,750 INFO L266 ainManager$Toolchain]: [Toolchain 1]: Parser(s) successfully (re)initialized [2018-04-11 10:27:22,753 INFO L222 ainManager$Toolchain]: [Toolchain 1]: Toolchain data selected. [2018-04-11 10:27:22,754 INFO L271 PluginConnector]: Initializing CDTParser... [2018-04-11 10:27:22,754 INFO L276 PluginConnector]: CDTParser initialized [2018-04-11 10:27:22,756 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /home/ultimate/work/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/memsafety/960521-1_true-valid-memsafety.i [2018-04-11 10:27:23,130 INFO L225 CDTParser]: Created temporary CDT project at /home/ultimate/work/ultimate/releaseScripts/default/UAutomizer-linux/data/FLAG53a89908d [2018-04-11 10:27:23,250 INFO L287 CDTParser]: IsIndexed: true [2018-04-11 10:27:23,251 INFO L288 CDTParser]: Found 1 translation units. [2018-04-11 10:27:23,251 INFO L168 CDTParser]: Scanning 960521-1_true-valid-memsafety.i [2018-04-11 10:27:23,260 INFO L210 ultiparseSymbolTable]: Include resolver: [2018-04-11 10:27:23,260 INFO L215 ultiparseSymbolTable]: [2018-04-11 10:27:23,260 INFO L218 ultiparseSymbolTable]: Function table: [2018-04-11 10:27:23,260 INFO L221 ultiparseSymbolTable]: Function definition of __U_MULTI_f_________true_valid_memsafety_i__foo ('foo') in 960521-1_true-valid-memsafety.i [2018-04-11 10:27:23,260 INFO L221 ultiparseSymbolTable]: Function definition of null ('main') in 960521-1_true-valid-memsafety.i [2018-04-11 10:27:23,260 INFO L227 ultiparseSymbolTable]: Global variable table: [2018-04-11 10:27:23,260 INFO L230 ultiparseSymbolTable]: Global variable declaration of __U_MULTI_f_________true_valid_memsafety_i__dev_t in 960521-1_true-valid-memsafety.i [2018-04-11 10:27:23,261 INFO L230 ultiparseSymbolTable]: Global variable declaration of __U_MULTI_f_________true_valid_memsafety_i____uint8_t in 960521-1_true-valid-memsafety.i [2018-04-11 10:27:23,261 INFO L230 ultiparseSymbolTable]: Global variable declaration of __U_MULTI_f_________true_valid_memsafety_i____key_t in 960521-1_true-valid-memsafety.i [2018-04-11 10:27:23,261 INFO L230 ultiparseSymbolTable]: Global variable declaration of __U_MULTI_f_________true_valid_memsafety_i____clockid_t in 960521-1_true-valid-memsafety.i [2018-04-11 10:27:23,261 INFO L230 ultiparseSymbolTable]: Global variable declaration of __U_MULTI_f_________true_valid_memsafety_i__clockid_t in 960521-1_true-valid-memsafety.i [2018-04-11 10:27:23,261 INFO L230 ultiparseSymbolTable]: Global variable declaration of __U_MULTI_f_________true_valid_memsafety_i__loff_t in 960521-1_true-valid-memsafety.i [2018-04-11 10:27:23,261 INFO L230 ultiparseSymbolTable]: Global variable declaration of __U_MULTI_f_________true_valid_memsafety_i__u_int8_t in 960521-1_true-valid-memsafety.i [2018-04-11 10:27:23,261 INFO L230 ultiparseSymbolTable]: Global variable declaration of __U_MULTI_f_________true_valid_memsafety_i__uint in 960521-1_true-valid-memsafety.i [2018-04-11 10:27:23,261 INFO L230 ultiparseSymbolTable]: Global variable declaration of __U_MULTI_f_________true_valid_memsafety_i____u_int in 960521-1_true-valid-memsafety.i [2018-04-11 10:27:23,261 INFO L230 ultiparseSymbolTable]: Global variable declaration of __U_MULTI_f_________true_valid_memsafety_i__quad_t in 960521-1_true-valid-memsafety.i [2018-04-11 10:27:23,261 INFO L230 ultiparseSymbolTable]: Global variable declaration of __U_MULTI_f_________true_valid_memsafety_i__nlink_t in 960521-1_true-valid-memsafety.i [2018-04-11 10:27:23,262 INFO L230 ultiparseSymbolTable]: Global variable declaration of __U_MULTI_f_________true_valid_memsafety_i____int64_t in 960521-1_true-valid-memsafety.i [2018-04-11 10:27:23,262 INFO L230 ultiparseSymbolTable]: Global variable declaration of __U_MULTI_f_________true_valid_memsafety_i__suseconds_t in 960521-1_true-valid-memsafety.i [2018-04-11 10:27:23,262 INFO L230 ultiparseSymbolTable]: Global variable declaration of __U_MULTI_f_________true_valid_memsafety_i____useconds_t in 960521-1_true-valid-memsafety.i [2018-04-11 10:27:23,262 INFO L230 ultiparseSymbolTable]: Global variable declaration of __U_MULTI_f_________true_valid_memsafety_i__fd_mask in 960521-1_true-valid-memsafety.i [2018-04-11 10:27:23,262 INFO L230 ultiparseSymbolTable]: Global variable declaration of __U_MULTI_f_________true_valid_memsafety_i__wchar_t in 960521-1_true-valid-memsafety.i [2018-04-11 10:27:23,262 INFO L230 ultiparseSymbolTable]: Global variable declaration of __U_MULTI_f_________true_valid_memsafety_i____pid_t in 960521-1_true-valid-memsafety.i [2018-04-11 10:27:23,262 INFO L230 ultiparseSymbolTable]: Global variable declaration of __U_MULTI_f_________true_valid_memsafety_i____u_quad_t in 960521-1_true-valid-memsafety.i [2018-04-11 10:27:23,262 INFO L230 ultiparseSymbolTable]: Global variable declaration of __U_MULTI_f_________true_valid_memsafety_i__ushort in 960521-1_true-valid-memsafety.i [2018-04-11 10:27:23,262 INFO L230 ultiparseSymbolTable]: Global variable declaration of __U_MULTI_f_________true_valid_memsafety_i____sig_atomic_t in 960521-1_true-valid-memsafety.i [2018-04-11 10:27:23,262 INFO L230 ultiparseSymbolTable]: Global variable declaration of __U_MULTI_f_________true_valid_memsafety_i____loff_t in 960521-1_true-valid-memsafety.i [2018-04-11 10:27:23,262 INFO L230 ultiparseSymbolTable]: Global variable declaration of __U_MULTI_f_________true_valid_memsafety_i____quad_t in 960521-1_true-valid-memsafety.i [2018-04-11 10:27:23,263 INFO L230 ultiparseSymbolTable]: Global variable declaration of __U_MULTI_f_________true_valid_memsafety_i____fsblkcnt64_t in 960521-1_true-valid-memsafety.i [2018-04-11 10:27:23,263 INFO L230 ultiparseSymbolTable]: Global variable declaration of __U_MULTI_f_________true_valid_memsafety_i____fd_mask in 960521-1_true-valid-memsafety.i [2018-04-11 10:27:23,263 INFO L230 ultiparseSymbolTable]: Global variable declaration of __U_MULTI_f_________true_valid_memsafety_i____uint16_t in 960521-1_true-valid-memsafety.i [2018-04-11 10:27:23,263 INFO L230 ultiparseSymbolTable]: Global variable declaration of __U_MULTI_f_________true_valid_memsafety_i__fsid_t in 960521-1_true-valid-memsafety.i [2018-04-11 10:27:23,263 INFO L230 ultiparseSymbolTable]: Global variable declaration of __U_MULTI_f_________true_valid_memsafety_i__pthread_t in 960521-1_true-valid-memsafety.i [2018-04-11 10:27:23,263 INFO L230 ultiparseSymbolTable]: Global variable declaration of __U_MULTI_f_________true_valid_memsafety_i____daddr_t in 960521-1_true-valid-memsafety.i [2018-04-11 10:27:23,263 INFO L230 ultiparseSymbolTable]: Global variable declaration of __U_MULTI_f_________true_valid_memsafety_i____clock_t in 960521-1_true-valid-memsafety.i [2018-04-11 10:27:23,263 INFO L230 ultiparseSymbolTable]: Global variable declaration of __U_MULTI_f_________true_valid_memsafety_i__pthread_condattr_t in 960521-1_true-valid-memsafety.i [2018-04-11 10:27:23,263 INFO L230 ultiparseSymbolTable]: Global variable declaration of __U_MULTI_f_________true_valid_memsafety_i____gid_t in 960521-1_true-valid-memsafety.i [2018-04-11 10:27:23,264 INFO L230 ultiparseSymbolTable]: Global variable declaration of __U_MULTI_f_________true_valid_memsafety_i__int64_t in 960521-1_true-valid-memsafety.i [2018-04-11 10:27:23,264 INFO L230 ultiparseSymbolTable]: Global variable declaration of __U_MULTI_f_________true_valid_memsafety_i____WAIT_STATUS in 960521-1_true-valid-memsafety.i [2018-04-11 10:27:23,264 INFO L230 ultiparseSymbolTable]: Global variable declaration of __U_MULTI_f_________true_valid_memsafety_i__ldiv_t in 960521-1_true-valid-memsafety.i [2018-04-11 10:27:23,264 INFO L230 ultiparseSymbolTable]: Global variable declaration of __U_MULTI_f_________true_valid_memsafety_i____nlink_t in 960521-1_true-valid-memsafety.i [2018-04-11 10:27:23,264 INFO L230 ultiparseSymbolTable]: Global variable declaration of __U_MULTI_f_________true_valid_memsafety_i__u_int64_t in 960521-1_true-valid-memsafety.i [2018-04-11 10:27:23,264 INFO L230 ultiparseSymbolTable]: Global variable declaration of __U_MULTI_f_________true_valid_memsafety_i____swblk_t in 960521-1_true-valid-memsafety.i [2018-04-11 10:27:23,264 INFO L230 ultiparseSymbolTable]: Global variable declaration of __U_MULTI_f_________true_valid_memsafety_i__fsfilcnt_t in 960521-1_true-valid-memsafety.i [2018-04-11 10:27:23,264 INFO L230 ultiparseSymbolTable]: Global variable declaration of __U_MULTI_f_________true_valid_memsafety_i____ssize_t in 960521-1_true-valid-memsafety.i [2018-04-11 10:27:23,264 INFO L230 ultiparseSymbolTable]: Global variable declaration of __U_MULTI_f_________true_valid_memsafety_i__timer_t in 960521-1_true-valid-memsafety.i [2018-04-11 10:27:23,264 INFO L230 ultiparseSymbolTable]: Global variable declaration of __U_MULTI_f_________true_valid_memsafety_i__int32_t in 960521-1_true-valid-memsafety.i [2018-04-11 10:27:23,265 INFO L230 ultiparseSymbolTable]: Global variable declaration of __U_MULTI_f_________true_valid_memsafety_i__register_t in 960521-1_true-valid-memsafety.i [2018-04-11 10:27:23,265 INFO L230 ultiparseSymbolTable]: Global variable declaration of __U_MULTI_f_________true_valid_memsafety_i__pthread_barrierattr_t in 960521-1_true-valid-memsafety.i [2018-04-11 10:27:23,265 INFO L230 ultiparseSymbolTable]: Global variable declaration of __U_MULTI_f_________true_valid_memsafety_i____fsfilcnt64_t in 960521-1_true-valid-memsafety.i [2018-04-11 10:27:23,265 INFO L230 ultiparseSymbolTable]: Global variable declaration of __U_MULTI_f_________true_valid_memsafety_i__pthread_rwlockattr_t in 960521-1_true-valid-memsafety.i [2018-04-11 10:27:23,265 INFO L230 ultiparseSymbolTable]: Global variable declaration of __U_MULTI_f_________true_valid_memsafety_i__b in 960521-1_true-valid-memsafety.i [2018-04-11 10:27:23,265 INFO L230 ultiparseSymbolTable]: Global variable declaration of __U_MULTI_f_________true_valid_memsafety_i____blkcnt64_t in 960521-1_true-valid-memsafety.i [2018-04-11 10:27:23,265 INFO L230 ultiparseSymbolTable]: Global variable declaration of __U_MULTI_f_________true_valid_memsafety_i__a in 960521-1_true-valid-memsafety.i [2018-04-11 10:27:23,265 INFO L230 ultiparseSymbolTable]: Global variable declaration of __U_MULTI_f_________true_valid_memsafety_i____off_t in 960521-1_true-valid-memsafety.i [2018-04-11 10:27:23,265 INFO L230 ultiparseSymbolTable]: Global variable declaration of __U_MULTI_f_________true_valid_memsafety_i__ino_t in 960521-1_true-valid-memsafety.i [2018-04-11 10:27:23,265 INFO L230 ultiparseSymbolTable]: Global variable declaration of __U_MULTI_f_________true_valid_memsafety_i____uint64_t in 960521-1_true-valid-memsafety.i [2018-04-11 10:27:23,265 INFO L230 ultiparseSymbolTable]: Global variable declaration of __U_MULTI_f_________true_valid_memsafety_i____uid_t in 960521-1_true-valid-memsafety.i [2018-04-11 10:27:23,266 INFO L230 ultiparseSymbolTable]: Global variable declaration of __U_MULTI_f_________true_valid_memsafety_i__pthread_key_t in 960521-1_true-valid-memsafety.i [2018-04-11 10:27:23,266 INFO L230 ultiparseSymbolTable]: Global variable declaration of __U_MULTI_f_________true_valid_memsafety_i____ino64_t in 960521-1_true-valid-memsafety.i [2018-04-11 10:27:23,266 INFO L230 ultiparseSymbolTable]: Global variable declaration of __U_MULTI_f_________true_valid_memsafety_i__ssize_t in 960521-1_true-valid-memsafety.i [2018-04-11 10:27:23,266 INFO L230 ultiparseSymbolTable]: Global variable declaration of __U_MULTI_f_________true_valid_memsafety_i__n in 960521-1_true-valid-memsafety.i [2018-04-11 10:27:23,266 INFO L230 ultiparseSymbolTable]: Global variable declaration of __U_MULTI_f_________true_valid_memsafety_i__sigset_t in 960521-1_true-valid-memsafety.i [2018-04-11 10:27:23,266 INFO L230 ultiparseSymbolTable]: Global variable declaration of __U_MULTI_f_________true_valid_memsafety_i____blkcnt_t in 960521-1_true-valid-memsafety.i [2018-04-11 10:27:23,266 INFO L230 ultiparseSymbolTable]: Global variable declaration of __U_MULTI_f_________true_valid_memsafety_i__id_t in 960521-1_true-valid-memsafety.i [2018-04-11 10:27:23,266 INFO L230 ultiparseSymbolTable]: Global variable declaration of __U_MULTI_f_________true_valid_memsafety_i__fsblkcnt_t in 960521-1_true-valid-memsafety.i [2018-04-11 10:27:23,266 INFO L230 ultiparseSymbolTable]: Global variable declaration of __U_MULTI_f_________true_valid_memsafety_i____rlim64_t in 960521-1_true-valid-memsafety.i [2018-04-11 10:27:23,266 INFO L230 ultiparseSymbolTable]: Global variable declaration of __U_MULTI_f_________true_valid_memsafety_i____suseconds_t in 960521-1_true-valid-memsafety.i [2018-04-11 10:27:23,266 INFO L230 ultiparseSymbolTable]: Global variable declaration of __U_MULTI_f_________true_valid_memsafety_i__time_t in 960521-1_true-valid-memsafety.i [2018-04-11 10:27:23,266 INFO L230 ultiparseSymbolTable]: Global variable declaration of __U_MULTI_f_________true_valid_memsafety_i__pthread_rwlock_t in 960521-1_true-valid-memsafety.i [2018-04-11 10:27:23,267 INFO L230 ultiparseSymbolTable]: Global variable declaration of __U_MULTI_f_________true_valid_memsafety_i____rlim_t in 960521-1_true-valid-memsafety.i [2018-04-11 10:27:23,267 INFO L230 ultiparseSymbolTable]: Global variable declaration of __U_MULTI_f_________true_valid_memsafety_i__int16_t in 960521-1_true-valid-memsafety.i [2018-04-11 10:27:23,267 INFO L230 ultiparseSymbolTable]: Global variable declaration of __U_MULTI_f_________true_valid_memsafety_i____dev_t in 960521-1_true-valid-memsafety.i [2018-04-11 10:27:23,267 INFO L230 ultiparseSymbolTable]: Global variable declaration of __U_MULTI_f_________true_valid_memsafety_i____fsblkcnt_t in 960521-1_true-valid-memsafety.i [2018-04-11 10:27:23,267 INFO L230 ultiparseSymbolTable]: Global variable declaration of __U_MULTI_f_________true_valid_memsafety_i__mode_t in 960521-1_true-valid-memsafety.i [2018-04-11 10:27:23,267 INFO L230 ultiparseSymbolTable]: Global variable declaration of __U_MULTI_f_________true_valid_memsafety_i__uid_t in 960521-1_true-valid-memsafety.i [2018-04-11 10:27:23,267 INFO L230 ultiparseSymbolTable]: Global variable declaration of __U_MULTI_f_________true_valid_memsafety_i__lldiv_t in 960521-1_true-valid-memsafety.i [2018-04-11 10:27:23,267 INFO L230 ultiparseSymbolTable]: Global variable declaration of __U_MULTI_f_________true_valid_memsafety_i____u_short in 960521-1_true-valid-memsafety.i [2018-04-11 10:27:23,267 INFO L230 ultiparseSymbolTable]: Global variable declaration of __U_MULTI_f_________true_valid_memsafety_i____caddr_t in 960521-1_true-valid-memsafety.i [2018-04-11 10:27:23,267 INFO L230 ultiparseSymbolTable]: Global variable declaration of __U_MULTI_f_________true_valid_memsafety_i__fd_set in 960521-1_true-valid-memsafety.i [2018-04-11 10:27:23,267 INFO L230 ultiparseSymbolTable]: Global variable declaration of __U_MULTI_f_________true_valid_memsafety_i__pthread_mutex_t in 960521-1_true-valid-memsafety.i [2018-04-11 10:27:23,267 INFO L230 ultiparseSymbolTable]: Global variable declaration of __U_MULTI_f_________true_valid_memsafety_i__u_quad_t in 960521-1_true-valid-memsafety.i [2018-04-11 10:27:23,267 INFO L230 ultiparseSymbolTable]: Global variable declaration of __U_MULTI_f_________true_valid_memsafety_i____fsfilcnt_t in 960521-1_true-valid-memsafety.i [2018-04-11 10:27:23,267 INFO L230 ultiparseSymbolTable]: Global variable declaration of __U_MULTI_f_________true_valid_memsafety_i__pthread_mutexattr_t in 960521-1_true-valid-memsafety.i [2018-04-11 10:27:23,267 INFO L230 ultiparseSymbolTable]: Global variable declaration of __U_MULTI_f_________true_valid_memsafety_i____u_char in 960521-1_true-valid-memsafety.i [2018-04-11 10:27:23,267 INFO L230 ultiparseSymbolTable]: Global variable declaration of __U_MULTI_f_________true_valid_memsafety_i__key_t in 960521-1_true-valid-memsafety.i [2018-04-11 10:27:23,268 INFO L230 ultiparseSymbolTable]: Global variable declaration of __U_MULTI_f_________true_valid_memsafety_i____off64_t in 960521-1_true-valid-memsafety.i [2018-04-11 10:27:23,268 INFO L230 ultiparseSymbolTable]: Global variable declaration of __U_MULTI_f_________true_valid_memsafety_i____time_t in 960521-1_true-valid-memsafety.i [2018-04-11 10:27:23,268 INFO L230 ultiparseSymbolTable]: Global variable declaration of __U_MULTI_f_________true_valid_memsafety_i__int8_t in 960521-1_true-valid-memsafety.i [2018-04-11 10:27:23,268 INFO L230 ultiparseSymbolTable]: Global variable declaration of __U_MULTI_f_________true_valid_memsafety_i__u_int32_t in 960521-1_true-valid-memsafety.i [2018-04-11 10:27:23,268 INFO L230 ultiparseSymbolTable]: Global variable declaration of __U_MULTI_f_________true_valid_memsafety_i____id_t in 960521-1_true-valid-memsafety.i [2018-04-11 10:27:23,268 INFO L230 ultiparseSymbolTable]: Global variable declaration of __U_MULTI_f_________true_valid_memsafety_i__u_int in 960521-1_true-valid-memsafety.i [2018-04-11 10:27:23,268 INFO L230 ultiparseSymbolTable]: Global variable declaration of __U_MULTI_f_________true_valid_memsafety_i____qaddr_t in 960521-1_true-valid-memsafety.i [2018-04-11 10:27:23,268 INFO L230 ultiparseSymbolTable]: Global variable declaration of __U_MULTI_f_________true_valid_memsafety_i____int32_t in 960521-1_true-valid-memsafety.i [2018-04-11 10:27:23,268 INFO L230 ultiparseSymbolTable]: Global variable declaration of __U_MULTI_f_________true_valid_memsafety_i____blksize_t in 960521-1_true-valid-memsafety.i [2018-04-11 10:27:23,268 INFO L230 ultiparseSymbolTable]: Global variable declaration of __U_MULTI_f_________true_valid_memsafety_i____timer_t in 960521-1_true-valid-memsafety.i [2018-04-11 10:27:23,268 INFO L230 ultiparseSymbolTable]: Global variable declaration of __U_MULTI_f_________true_valid_memsafety_i__off_t in 960521-1_true-valid-memsafety.i [2018-04-11 10:27:23,268 INFO L230 ultiparseSymbolTable]: Global variable declaration of __U_MULTI_f_________true_valid_memsafety_i____int16_t in 960521-1_true-valid-memsafety.i [2018-04-11 10:27:23,269 INFO L230 ultiparseSymbolTable]: Global variable declaration of __U_MULTI_f_________true_valid_memsafety_i__gid_t in 960521-1_true-valid-memsafety.i [2018-04-11 10:27:23,269 INFO L230 ultiparseSymbolTable]: Global variable declaration of __U_MULTI_f_________true_valid_memsafety_i__u_char in 960521-1_true-valid-memsafety.i [2018-04-11 10:27:23,269 INFO L230 ultiparseSymbolTable]: Global variable declaration of __U_MULTI_f_________true_valid_memsafety_i__blkcnt_t in 960521-1_true-valid-memsafety.i [2018-04-11 10:27:23,269 INFO L230 ultiparseSymbolTable]: Global variable declaration of __U_MULTI_f_________true_valid_memsafety_i__daddr_t in 960521-1_true-valid-memsafety.i [2018-04-11 10:27:23,269 INFO L230 ultiparseSymbolTable]: Global variable declaration of __U_MULTI_f_________true_valid_memsafety_i____int8_t in 960521-1_true-valid-memsafety.i [2018-04-11 10:27:23,269 INFO L230 ultiparseSymbolTable]: Global variable declaration of __U_MULTI_f_________true_valid_memsafety_i__u_short in 960521-1_true-valid-memsafety.i [2018-04-11 10:27:23,269 INFO L230 ultiparseSymbolTable]: Global variable declaration of __U_MULTI_f_________true_valid_memsafety_i____fsid_t in 960521-1_true-valid-memsafety.i [2018-04-11 10:27:23,269 INFO L230 ultiparseSymbolTable]: Global variable declaration of __U_MULTI_f_________true_valid_memsafety_i__clock_t in 960521-1_true-valid-memsafety.i [2018-04-11 10:27:23,269 INFO L230 ultiparseSymbolTable]: Global variable declaration of __U_MULTI_f_________true_valid_memsafety_i____socklen_t in 960521-1_true-valid-memsafety.i [2018-04-11 10:27:23,269 INFO L230 ultiparseSymbolTable]: Global variable declaration of __U_MULTI_f_________true_valid_memsafety_i__ulong in 960521-1_true-valid-memsafety.i [2018-04-11 10:27:23,269 INFO L230 ultiparseSymbolTable]: Global variable declaration of __U_MULTI_f_________true_valid_memsafety_i____pthread_list_t in 960521-1_true-valid-memsafety.i [2018-04-11 10:27:23,269 INFO L230 ultiparseSymbolTable]: Global variable declaration of __U_MULTI_f_________true_valid_memsafety_i__u_long in 960521-1_true-valid-memsafety.i [2018-04-11 10:27:23,270 INFO L230 ultiparseSymbolTable]: Global variable declaration of __U_MULTI_f_________true_valid_memsafety_i__pthread_barrier_t in 960521-1_true-valid-memsafety.i [2018-04-11 10:27:23,270 INFO L230 ultiparseSymbolTable]: Global variable declaration of __U_MULTI_f_________true_valid_memsafety_i__pid_t in 960521-1_true-valid-memsafety.i [2018-04-11 10:27:23,270 INFO L230 ultiparseSymbolTable]: Global variable declaration of __U_MULTI_f_________true_valid_memsafety_i__size_t in 960521-1_true-valid-memsafety.i [2018-04-11 10:27:23,270 INFO L230 ultiparseSymbolTable]: Global variable declaration of __U_MULTI_f_________true_valid_memsafety_i____ino_t in 960521-1_true-valid-memsafety.i [2018-04-11 10:27:23,270 INFO L230 ultiparseSymbolTable]: Global variable declaration of __U_MULTI_f_________true_valid_memsafety_i__pthread_attr_t in 960521-1_true-valid-memsafety.i [2018-04-11 10:27:23,270 INFO L230 ultiparseSymbolTable]: Global variable declaration of __U_MULTI_f_________true_valid_memsafety_i____intptr_t in 960521-1_true-valid-memsafety.i [2018-04-11 10:27:23,270 INFO L230 ultiparseSymbolTable]: Global variable declaration of __U_MULTI_f_________true_valid_memsafety_i____sigset_t in 960521-1_true-valid-memsafety.i [2018-04-11 10:27:23,270 INFO L230 ultiparseSymbolTable]: Global variable declaration of __U_MULTI_f_________true_valid_memsafety_i__caddr_t in 960521-1_true-valid-memsafety.i [2018-04-11 10:27:23,270 INFO L230 ultiparseSymbolTable]: Global variable declaration of __U_MULTI_f_________true_valid_memsafety_i__pthread_cond_t in 960521-1_true-valid-memsafety.i [2018-04-11 10:27:23,270 INFO L230 ultiparseSymbolTable]: Global variable declaration of __U_MULTI_f_________true_valid_memsafety_i__u_int16_t in 960521-1_true-valid-memsafety.i [2018-04-11 10:27:23,270 INFO L230 ultiparseSymbolTable]: Global variable declaration of __U_MULTI_f_________true_valid_memsafety_i____mode_t in 960521-1_true-valid-memsafety.i [2018-04-11 10:27:23,270 INFO L230 ultiparseSymbolTable]: Global variable declaration of __U_MULTI_f_________true_valid_memsafety_i____uint32_t in 960521-1_true-valid-memsafety.i [2018-04-11 10:27:23,271 INFO L230 ultiparseSymbolTable]: Global variable declaration of __U_MULTI_f_________true_valid_memsafety_i____u_long in 960521-1_true-valid-memsafety.i [2018-04-11 10:27:23,271 INFO L230 ultiparseSymbolTable]: Global variable declaration of __U_MULTI_f_________true_valid_memsafety_i__pthread_spinlock_t in 960521-1_true-valid-memsafety.i [2018-04-11 10:27:23,271 INFO L230 ultiparseSymbolTable]: Global variable declaration of __U_MULTI_f_________true_valid_memsafety_i__div_t in 960521-1_true-valid-memsafety.i [2018-04-11 10:27:23,271 INFO L230 ultiparseSymbolTable]: Global variable declaration of __U_MULTI_f_________true_valid_memsafety_i__blksize_t in 960521-1_true-valid-memsafety.i [2018-04-11 10:27:23,271 INFO L230 ultiparseSymbolTable]: Global variable declaration of __U_MULTI_f_________true_valid_memsafety_i__pthread_once_t in 960521-1_true-valid-memsafety.i [2018-04-11 10:27:23,316 INFO L330 CDTParser]: Deleted temporary CDT project at /home/ultimate/work/ultimate/releaseScripts/default/UAutomizer-linux/data/FLAG53a89908d [2018-04-11 10:27:23,319 INFO L304 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2018-04-11 10:27:23,320 INFO L131 ToolchainWalker]: Walking toolchain with 4 elements. [2018-04-11 10:27:23,321 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2018-04-11 10:27:23,321 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2018-04-11 10:27:23,325 INFO L276 PluginConnector]: CACSL2BoogieTranslator initialized [2018-04-11 10:27:23,325 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 11.04 10:27:23" (1/1) ... [2018-04-11 10:27:23,327 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@65a40e03 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.04 10:27:23, skipping insertion in model container [2018-04-11 10:27:23,327 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 11.04 10:27:23" (1/1) ... [2018-04-11 10:27:23,337 INFO L167 Dispatcher]: Using SV-COMP mode [2018-04-11 10:27:23,358 INFO L167 Dispatcher]: Using SV-COMP mode [2018-04-11 10:27:23,471 INFO L175 PostProcessor]: Settings: Checked method=main [2018-04-11 10:27:23,503 INFO L175 PostProcessor]: Settings: Checked method=main [2018-04-11 10:27:23,508 INFO L100 SccComputation]: Graph consists of 0 InCaSumBalls and 111 non ball SCCs. Number of states in SCCs 111. [2018-04-11 10:27:23,536 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.04 10:27:23 WrapperNode [2018-04-11 10:27:23,536 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2018-04-11 10:27:23,537 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2018-04-11 10:27:23,537 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2018-04-11 10:27:23,537 INFO L276 PluginConnector]: Boogie Preprocessor initialized [2018-04-11 10:27:23,545 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.04 10:27:23" (1/1) ... [2018-04-11 10:27:23,546 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.04 10:27:23" (1/1) ... [2018-04-11 10:27:23,556 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.04 10:27:23" (1/1) ... [2018-04-11 10:27:23,556 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.04 10:27:23" (1/1) ... [2018-04-11 10:27:23,562 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.04 10:27:23" (1/1) ... [2018-04-11 10:27:23,566 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.04 10:27:23" (1/1) ... [2018-04-11 10:27:23,568 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.04 10:27:23" (1/1) ... [2018-04-11 10:27:23,571 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2018-04-11 10:27:23,571 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2018-04-11 10:27:23,571 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2018-04-11 10:27:23,571 INFO L276 PluginConnector]: RCFGBuilder initialized [2018-04-11 10:27:23,572 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.04 10:27:23" (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 10:27:23,664 INFO L136 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2018-04-11 10:27:23,664 INFO L136 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2018-04-11 10:27:23,664 INFO L136 BoogieDeclarations]: Found implementation of procedure __U_MULTI_f_________true_valid_memsafety_i__foo [2018-04-11 10:27:23,664 INFO L136 BoogieDeclarations]: Found implementation of procedure main [2018-04-11 10:27:23,665 INFO L128 BoogieDeclarations]: Found specification of procedure __VERIFIER_error [2018-04-11 10:27:23,665 INFO L128 BoogieDeclarations]: Found specification of procedure __ctype_get_mb_cur_max [2018-04-11 10:27:23,665 INFO L128 BoogieDeclarations]: Found specification of procedure atof [2018-04-11 10:27:23,665 INFO L128 BoogieDeclarations]: Found specification of procedure atoi [2018-04-11 10:27:23,665 INFO L128 BoogieDeclarations]: Found specification of procedure atol [2018-04-11 10:27:23,665 INFO L128 BoogieDeclarations]: Found specification of procedure atoll [2018-04-11 10:27:23,665 INFO L128 BoogieDeclarations]: Found specification of procedure strtod [2018-04-11 10:27:23,665 INFO L128 BoogieDeclarations]: Found specification of procedure strtof [2018-04-11 10:27:23,665 INFO L128 BoogieDeclarations]: Found specification of procedure strtold [2018-04-11 10:27:23,666 INFO L128 BoogieDeclarations]: Found specification of procedure strtol [2018-04-11 10:27:23,666 INFO L128 BoogieDeclarations]: Found specification of procedure strtoul [2018-04-11 10:27:23,666 INFO L128 BoogieDeclarations]: Found specification of procedure strtoq [2018-04-11 10:27:23,666 INFO L128 BoogieDeclarations]: Found specification of procedure strtouq [2018-04-11 10:27:23,666 INFO L128 BoogieDeclarations]: Found specification of procedure strtoll [2018-04-11 10:27:23,666 INFO L128 BoogieDeclarations]: Found specification of procedure strtoull [2018-04-11 10:27:23,666 INFO L128 BoogieDeclarations]: Found specification of procedure l64a [2018-04-11 10:27:23,666 INFO L128 BoogieDeclarations]: Found specification of procedure a64l [2018-04-11 10:27:23,666 INFO L128 BoogieDeclarations]: Found specification of procedure select [2018-04-11 10:27:23,667 INFO L128 BoogieDeclarations]: Found specification of procedure pselect [2018-04-11 10:27:23,667 INFO L128 BoogieDeclarations]: Found specification of procedure gnu_dev_major [2018-04-11 10:27:23,667 INFO L128 BoogieDeclarations]: Found specification of procedure gnu_dev_minor [2018-04-11 10:27:23,667 INFO L128 BoogieDeclarations]: Found specification of procedure gnu_dev_makedev [2018-04-11 10:27:23,667 INFO L128 BoogieDeclarations]: Found specification of procedure random [2018-04-11 10:27:23,667 INFO L128 BoogieDeclarations]: Found specification of procedure srandom [2018-04-11 10:27:23,667 INFO L128 BoogieDeclarations]: Found specification of procedure initstate [2018-04-11 10:27:23,667 INFO L128 BoogieDeclarations]: Found specification of procedure setstate [2018-04-11 10:27:23,667 INFO L128 BoogieDeclarations]: Found specification of procedure random_r [2018-04-11 10:27:23,668 INFO L128 BoogieDeclarations]: Found specification of procedure srandom_r [2018-04-11 10:27:23,668 INFO L128 BoogieDeclarations]: Found specification of procedure initstate_r [2018-04-11 10:27:23,668 INFO L128 BoogieDeclarations]: Found specification of procedure setstate_r [2018-04-11 10:27:23,668 INFO L128 BoogieDeclarations]: Found specification of procedure rand [2018-04-11 10:27:23,668 INFO L128 BoogieDeclarations]: Found specification of procedure srand [2018-04-11 10:27:23,668 INFO L128 BoogieDeclarations]: Found specification of procedure rand_r [2018-04-11 10:27:23,668 INFO L128 BoogieDeclarations]: Found specification of procedure drand48 [2018-04-11 10:27:23,668 INFO L128 BoogieDeclarations]: Found specification of procedure erand48 [2018-04-11 10:27:23,668 INFO L128 BoogieDeclarations]: Found specification of procedure lrand48 [2018-04-11 10:27:23,669 INFO L128 BoogieDeclarations]: Found specification of procedure nrand48 [2018-04-11 10:27:23,669 INFO L128 BoogieDeclarations]: Found specification of procedure mrand48 [2018-04-11 10:27:23,669 INFO L128 BoogieDeclarations]: Found specification of procedure jrand48 [2018-04-11 10:27:23,669 INFO L128 BoogieDeclarations]: Found specification of procedure srand48 [2018-04-11 10:27:23,669 INFO L128 BoogieDeclarations]: Found specification of procedure seed48 [2018-04-11 10:27:23,669 INFO L128 BoogieDeclarations]: Found specification of procedure lcong48 [2018-04-11 10:27:23,669 INFO L128 BoogieDeclarations]: Found specification of procedure drand48_r [2018-04-11 10:27:23,669 INFO L128 BoogieDeclarations]: Found specification of procedure erand48_r [2018-04-11 10:27:23,669 INFO L128 BoogieDeclarations]: Found specification of procedure lrand48_r [2018-04-11 10:27:23,670 INFO L128 BoogieDeclarations]: Found specification of procedure nrand48_r [2018-04-11 10:27:23,670 INFO L128 BoogieDeclarations]: Found specification of procedure mrand48_r [2018-04-11 10:27:23,670 INFO L128 BoogieDeclarations]: Found specification of procedure jrand48_r [2018-04-11 10:27:23,670 INFO L128 BoogieDeclarations]: Found specification of procedure srand48_r [2018-04-11 10:27:23,670 INFO L128 BoogieDeclarations]: Found specification of procedure seed48_r [2018-04-11 10:27:23,670 INFO L128 BoogieDeclarations]: Found specification of procedure lcong48_r [2018-04-11 10:27:23,670 INFO L128 BoogieDeclarations]: Found specification of procedure malloc [2018-04-11 10:27:23,670 INFO L128 BoogieDeclarations]: Found specification of procedure calloc [2018-04-11 10:27:23,670 INFO L128 BoogieDeclarations]: Found specification of procedure realloc [2018-04-11 10:27:23,670 INFO L128 BoogieDeclarations]: Found specification of procedure free [2018-04-11 10:27:23,671 INFO L128 BoogieDeclarations]: Found specification of procedure cfree [2018-04-11 10:27:23,671 INFO L128 BoogieDeclarations]: Found specification of procedure alloca [2018-04-11 10:27:23,671 INFO L128 BoogieDeclarations]: Found specification of procedure valloc [2018-04-11 10:27:23,671 INFO L128 BoogieDeclarations]: Found specification of procedure posix_memalign [2018-04-11 10:27:23,671 INFO L128 BoogieDeclarations]: Found specification of procedure abort [2018-04-11 10:27:23,671 INFO L128 BoogieDeclarations]: Found specification of procedure atexit [2018-04-11 10:27:23,671 INFO L128 BoogieDeclarations]: Found specification of procedure on_exit [2018-04-11 10:27:23,671 INFO L128 BoogieDeclarations]: Found specification of procedure exit [2018-04-11 10:27:23,671 INFO L128 BoogieDeclarations]: Found specification of procedure _Exit [2018-04-11 10:27:23,671 INFO L128 BoogieDeclarations]: Found specification of procedure getenv [2018-04-11 10:27:23,672 INFO L128 BoogieDeclarations]: Found specification of procedure __secure_getenv [2018-04-11 10:27:23,672 INFO L128 BoogieDeclarations]: Found specification of procedure putenv [2018-04-11 10:27:23,672 INFO L128 BoogieDeclarations]: Found specification of procedure setenv [2018-04-11 10:27:23,672 INFO L128 BoogieDeclarations]: Found specification of procedure unsetenv [2018-04-11 10:27:23,672 INFO L128 BoogieDeclarations]: Found specification of procedure clearenv [2018-04-11 10:27:23,672 INFO L128 BoogieDeclarations]: Found specification of procedure mktemp [2018-04-11 10:27:23,672 INFO L128 BoogieDeclarations]: Found specification of procedure mkstemp [2018-04-11 10:27:23,672 INFO L128 BoogieDeclarations]: Found specification of procedure mkstemps [2018-04-11 10:27:23,672 INFO L128 BoogieDeclarations]: Found specification of procedure mkdtemp [2018-04-11 10:27:23,673 INFO L128 BoogieDeclarations]: Found specification of procedure system [2018-04-11 10:27:23,673 INFO L128 BoogieDeclarations]: Found specification of procedure realpath [2018-04-11 10:27:23,673 INFO L128 BoogieDeclarations]: Found specification of procedure bsearch [2018-04-11 10:27:23,673 INFO L128 BoogieDeclarations]: Found specification of procedure qsort [2018-04-11 10:27:23,673 INFO L128 BoogieDeclarations]: Found specification of procedure abs [2018-04-11 10:27:23,673 INFO L128 BoogieDeclarations]: Found specification of procedure labs [2018-04-11 10:27:23,673 INFO L128 BoogieDeclarations]: Found specification of procedure llabs [2018-04-11 10:27:23,673 INFO L128 BoogieDeclarations]: Found specification of procedure div [2018-04-11 10:27:23,673 INFO L128 BoogieDeclarations]: Found specification of procedure ldiv [2018-04-11 10:27:23,673 INFO L128 BoogieDeclarations]: Found specification of procedure lldiv [2018-04-11 10:27:23,673 INFO L128 BoogieDeclarations]: Found specification of procedure ecvt [2018-04-11 10:27:23,674 INFO L128 BoogieDeclarations]: Found specification of procedure fcvt [2018-04-11 10:27:23,674 INFO L128 BoogieDeclarations]: Found specification of procedure gcvt [2018-04-11 10:27:23,674 INFO L128 BoogieDeclarations]: Found specification of procedure qecvt [2018-04-11 10:27:23,674 INFO L128 BoogieDeclarations]: Found specification of procedure qfcvt [2018-04-11 10:27:23,674 INFO L128 BoogieDeclarations]: Found specification of procedure qgcvt [2018-04-11 10:27:23,674 INFO L128 BoogieDeclarations]: Found specification of procedure ecvt_r [2018-04-11 10:27:23,674 INFO L128 BoogieDeclarations]: Found specification of procedure fcvt_r [2018-04-11 10:27:23,674 INFO L128 BoogieDeclarations]: Found specification of procedure qecvt_r [2018-04-11 10:27:23,674 INFO L128 BoogieDeclarations]: Found specification of procedure qfcvt_r [2018-04-11 10:27:23,675 INFO L128 BoogieDeclarations]: Found specification of procedure mblen [2018-04-11 10:27:23,675 INFO L128 BoogieDeclarations]: Found specification of procedure mbtowc [2018-04-11 10:27:23,675 INFO L128 BoogieDeclarations]: Found specification of procedure wctomb [2018-04-11 10:27:23,675 INFO L128 BoogieDeclarations]: Found specification of procedure mbstowcs [2018-04-11 10:27:23,675 INFO L128 BoogieDeclarations]: Found specification of procedure wcstombs [2018-04-11 10:27:23,675 INFO L128 BoogieDeclarations]: Found specification of procedure rpmatch [2018-04-11 10:27:23,675 INFO L128 BoogieDeclarations]: Found specification of procedure getsubopt [2018-04-11 10:27:23,675 INFO L128 BoogieDeclarations]: Found specification of procedure getloadavg [2018-04-11 10:27:23,675 INFO L128 BoogieDeclarations]: Found specification of procedure __U_MULTI_f_________true_valid_memsafety_i__foo [2018-04-11 10:27:23,675 INFO L128 BoogieDeclarations]: Found specification of procedure write~int [2018-04-11 10:27:23,676 INFO L128 BoogieDeclarations]: Found specification of procedure main [2018-04-11 10:27:23,676 INFO L128 BoogieDeclarations]: Found specification of procedure #Ultimate.alloc [2018-04-11 10:27:23,676 INFO L128 BoogieDeclarations]: Found specification of procedure read~int [2018-04-11 10:27:23,676 INFO L128 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2018-04-11 10:27:23,676 INFO L128 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2018-04-11 10:27:23,676 INFO L128 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2018-04-11 10:27:23,676 INFO L128 BoogieDeclarations]: Found specification of procedure write~unchecked~int [2018-04-11 10:27:23,939 INFO L259 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2018-04-11 10:27:23,939 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 11.04 10:27:23 BoogieIcfgContainer [2018-04-11 10:27:23,939 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2018-04-11 10:27:23,940 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2018-04-11 10:27:23,940 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2018-04-11 10:27:23,941 INFO L276 PluginConnector]: TraceAbstraction initialized [2018-04-11 10:27:23,942 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 11.04 10:27:23" (1/3) ... [2018-04-11 10:27:23,942 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@7fb215f and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 11.04 10:27:23, skipping insertion in model container [2018-04-11 10:27:23,942 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.04 10:27:23" (2/3) ... [2018-04-11 10:27:23,942 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@7fb215f and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 11.04 10:27:23, skipping insertion in model container [2018-04-11 10:27:23,942 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 11.04 10:27:23" (3/3) ... [2018-04-11 10:27:23,943 INFO L107 eAbstractionObserver]: Analyzing ICFG 960521-1_true-valid-memsafety.i [2018-04-11 10:27:23,948 INFO L131 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2018-04-11 10:27:23,953 INFO L143 ceAbstractionStarter]: Appying trace abstraction to program that has 17 error locations. [2018-04-11 10:27:23,981 INFO L128 ementStrategyFactory]: Using default assertion order modulation [2018-04-11 10:27:23,982 INFO L369 AbstractCegarLoop]: Interprodecural is true [2018-04-11 10:27:23,982 INFO L370 AbstractCegarLoop]: Hoare is false [2018-04-11 10:27:23,982 INFO L371 AbstractCegarLoop]: Compute interpolants for FPandBP [2018-04-11 10:27:23,982 INFO L372 AbstractCegarLoop]: Backedges is TWOTRACK [2018-04-11 10:27:23,982 INFO L373 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2018-04-11 10:27:23,982 INFO L374 AbstractCegarLoop]: Difference is false [2018-04-11 10:27:23,982 INFO L375 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2018-04-11 10:27:23,982 INFO L380 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2018-04-11 10:27:23,983 INFO L87 2NestedWordAutomaton]: Mode: main mode - execution starts in main procedure [2018-04-11 10:27:23,990 INFO L276 IsEmpty]: Start isEmpty. Operand 61 states. [2018-04-11 10:27:23,996 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 12 [2018-04-11 10:27:23,996 INFO L347 BasicCegarLoop]: Found error trace [2018-04-11 10:27:23,996 INFO L355 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-04-11 10:27:23,996 INFO L408 AbstractCegarLoop]: === Iteration 1 === [mainErr1RequiresViolation, mainErr6AssertViolationMEMORY_FREE, mainErr4AssertViolationMEMORY_FREE, mainErr10AssertViolationMEMORY_FREE, mainErr11AssertViolationMEMORY_FREE, mainErr0RequiresViolation, mainErr12EnsuresViolationMEMORY_LEAK, mainErr3RequiresViolation, mainErr7AssertViolationMEMORY_FREE, mainErr9AssertViolationMEMORY_FREE, mainErr2RequiresViolation, mainErr8AssertViolationMEMORY_FREE, mainErr5AssertViolationMEMORY_FREE, __U_MULTI_f_________true_valid_memsafety_i__fooErr0RequiresViolation, __U_MULTI_f_________true_valid_memsafety_i__fooErr3RequiresViolation, __U_MULTI_f_________true_valid_memsafety_i__fooErr1RequiresViolation, __U_MULTI_f_________true_valid_memsafety_i__fooErr2RequiresViolation]=== [2018-04-11 10:27:23,999 INFO L82 PathProgramCache]: Analyzing trace with hash 516560539, now seen corresponding path program 1 times [2018-04-11 10:27:24,000 INFO L213 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-04-11 10:27:24,000 INFO L68 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-04-11 10:27:24,030 INFO L119 rtionOrderModulation]: Craig nested/tree interpolation forces the following order [2018-04-11 10:27:24,030 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-04-11 10:27:24,030 INFO L119 rtionOrderModulation]: Craig nested/tree interpolation forces the following order [2018-04-11 10:27:24,063 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-04-11 10:27:24,067 WARN L137 erpolLogProxyWrapper]: Using partial proofs (cut at CNF-level). Set option :produce-proofs to true to get complete proofs. [2018-04-11 10:27:24,114 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-04-11 10:27:24,116 INFO L320 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-04-11 10:27:24,116 INFO L335 seRefinementStrategy]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2018-04-11 10:27:24,118 INFO L442 AbstractCegarLoop]: Interpolant automaton has 4 states [2018-04-11 10:27:24,129 INFO L132 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2018-04-11 10:27:24,129 INFO L133 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2018-04-11 10:27:24,131 INFO L87 Difference]: Start difference. First operand 61 states. Second operand 4 states. [2018-04-11 10:27:24,225 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-04-11 10:27:24,225 INFO L93 Difference]: Finished difference Result 60 states and 62 transitions. [2018-04-11 10:27:24,226 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2018-04-11 10:27:24,227 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 11 [2018-04-11 10:27:24,227 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-04-11 10:27:24,235 INFO L225 Difference]: With dead ends: 60 [2018-04-11 10:27:24,236 INFO L226 Difference]: Without dead ends: 57 [2018-04-11 10:27:24,237 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 10:27:24,252 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 57 states. [2018-04-11 10:27:24,264 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 57 to 57. [2018-04-11 10:27:24,265 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 57 states. [2018-04-11 10:27:24,266 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 57 states to 57 states and 59 transitions. [2018-04-11 10:27:24,267 INFO L78 Accepts]: Start accepts. Automaton has 57 states and 59 transitions. Word has length 11 [2018-04-11 10:27:24,268 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-04-11 10:27:24,268 INFO L459 AbstractCegarLoop]: Abstraction has 57 states and 59 transitions. [2018-04-11 10:27:24,268 INFO L460 AbstractCegarLoop]: Interpolant automaton has 4 states. [2018-04-11 10:27:24,268 INFO L276 IsEmpty]: Start isEmpty. Operand 57 states and 59 transitions. [2018-04-11 10:27:24,268 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 12 [2018-04-11 10:27:24,268 INFO L347 BasicCegarLoop]: Found error trace [2018-04-11 10:27:24,268 INFO L355 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-04-11 10:27:24,269 INFO L408 AbstractCegarLoop]: === Iteration 2 === [mainErr1RequiresViolation, mainErr6AssertViolationMEMORY_FREE, mainErr4AssertViolationMEMORY_FREE, mainErr10AssertViolationMEMORY_FREE, mainErr11AssertViolationMEMORY_FREE, mainErr0RequiresViolation, mainErr12EnsuresViolationMEMORY_LEAK, mainErr3RequiresViolation, mainErr7AssertViolationMEMORY_FREE, mainErr9AssertViolationMEMORY_FREE, mainErr2RequiresViolation, mainErr8AssertViolationMEMORY_FREE, mainErr5AssertViolationMEMORY_FREE, __U_MULTI_f_________true_valid_memsafety_i__fooErr0RequiresViolation, __U_MULTI_f_________true_valid_memsafety_i__fooErr3RequiresViolation, __U_MULTI_f_________true_valid_memsafety_i__fooErr1RequiresViolation, __U_MULTI_f_________true_valid_memsafety_i__fooErr2RequiresViolation]=== [2018-04-11 10:27:24,269 INFO L82 PathProgramCache]: Analyzing trace with hash 516560540, now seen corresponding path program 1 times [2018-04-11 10:27:24,269 INFO L213 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-04-11 10:27:24,269 INFO L68 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-04-11 10:27:24,270 INFO L119 rtionOrderModulation]: Craig nested/tree interpolation forces the following order [2018-04-11 10:27:24,270 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-04-11 10:27:24,270 INFO L119 rtionOrderModulation]: Craig nested/tree interpolation forces the following order [2018-04-11 10:27:24,288 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-04-11 10:27:24,289 WARN L137 erpolLogProxyWrapper]: Using partial proofs (cut at CNF-level). Set option :produce-proofs to true to get complete proofs. [2018-04-11 10:27:24,348 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 10:27:24,348 INFO L320 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-04-11 10:27:24,348 INFO L335 seRefinementStrategy]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2018-04-11 10:27:24,350 INFO L442 AbstractCegarLoop]: Interpolant automaton has 5 states [2018-04-11 10:27:24,350 INFO L132 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2018-04-11 10:27:24,350 INFO L133 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2018-04-11 10:27:24,350 INFO L87 Difference]: Start difference. First operand 57 states and 59 transitions. Second operand 5 states. [2018-04-11 10:27:24,386 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-04-11 10:27:24,386 INFO L93 Difference]: Finished difference Result 56 states and 58 transitions. [2018-04-11 10:27:24,386 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2018-04-11 10:27:24,386 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 11 [2018-04-11 10:27:24,386 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-04-11 10:27:24,387 INFO L225 Difference]: With dead ends: 56 [2018-04-11 10:27:24,387 INFO L226 Difference]: Without dead ends: 56 [2018-04-11 10:27:24,388 INFO L567 BasicCegarLoop]: 0 DeclaredPredicates, 6 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=17, Invalid=25, Unknown=0, NotChecked=0, Total=42 [2018-04-11 10:27:24,388 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 56 states. [2018-04-11 10:27:24,389 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 56 to 56. [2018-04-11 10:27:24,390 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 56 states. [2018-04-11 10:27:24,390 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 56 states to 56 states and 58 transitions. [2018-04-11 10:27:24,390 INFO L78 Accepts]: Start accepts. Automaton has 56 states and 58 transitions. Word has length 11 [2018-04-11 10:27:24,390 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-04-11 10:27:24,390 INFO L459 AbstractCegarLoop]: Abstraction has 56 states and 58 transitions. [2018-04-11 10:27:24,390 INFO L460 AbstractCegarLoop]: Interpolant automaton has 5 states. [2018-04-11 10:27:24,391 INFO L276 IsEmpty]: Start isEmpty. Operand 56 states and 58 transitions. [2018-04-11 10:27:24,391 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 18 [2018-04-11 10:27:24,391 INFO L347 BasicCegarLoop]: Found error trace [2018-04-11 10:27:24,391 INFO L355 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-04-11 10:27:24,391 INFO L408 AbstractCegarLoop]: === Iteration 3 === [mainErr1RequiresViolation, mainErr6AssertViolationMEMORY_FREE, mainErr4AssertViolationMEMORY_FREE, mainErr10AssertViolationMEMORY_FREE, mainErr11AssertViolationMEMORY_FREE, mainErr0RequiresViolation, mainErr12EnsuresViolationMEMORY_LEAK, mainErr3RequiresViolation, mainErr7AssertViolationMEMORY_FREE, mainErr9AssertViolationMEMORY_FREE, mainErr2RequiresViolation, mainErr8AssertViolationMEMORY_FREE, mainErr5AssertViolationMEMORY_FREE, __U_MULTI_f_________true_valid_memsafety_i__fooErr0RequiresViolation, __U_MULTI_f_________true_valid_memsafety_i__fooErr3RequiresViolation, __U_MULTI_f_________true_valid_memsafety_i__fooErr1RequiresViolation, __U_MULTI_f_________true_valid_memsafety_i__fooErr2RequiresViolation]=== [2018-04-11 10:27:24,391 INFO L82 PathProgramCache]: Analyzing trace with hash 1337247429, now seen corresponding path program 1 times [2018-04-11 10:27:24,391 INFO L213 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-04-11 10:27:24,391 INFO L68 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-04-11 10:27:24,392 INFO L119 rtionOrderModulation]: Craig nested/tree interpolation forces the following order [2018-04-11 10:27:24,392 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-04-11 10:27:24,392 INFO L119 rtionOrderModulation]: Craig nested/tree interpolation forces the following order [2018-04-11 10:27:24,401 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-04-11 10:27:24,402 WARN L137 erpolLogProxyWrapper]: Using partial proofs (cut at CNF-level). Set option :produce-proofs to true to get complete proofs. [2018-04-11 10:27:24,438 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 10:27:24,438 INFO L320 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-04-11 10:27:24,438 INFO L335 seRefinementStrategy]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2018-04-11 10:27:24,439 INFO L442 AbstractCegarLoop]: Interpolant automaton has 6 states [2018-04-11 10:27:24,439 INFO L132 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2018-04-11 10:27:24,439 INFO L133 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2018-04-11 10:27:24,439 INFO L87 Difference]: Start difference. First operand 56 states and 58 transitions. Second operand 6 states. [2018-04-11 10:27:24,489 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-04-11 10:27:24,490 INFO L93 Difference]: Finished difference Result 53 states and 55 transitions. [2018-04-11 10:27:24,490 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2018-04-11 10:27:24,490 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 17 [2018-04-11 10:27:24,490 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-04-11 10:27:24,491 INFO L225 Difference]: With dead ends: 53 [2018-04-11 10:27:24,491 INFO L226 Difference]: Without dead ends: 53 [2018-04-11 10:27:24,491 INFO L567 BasicCegarLoop]: 0 DeclaredPredicates, 7 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=17, Invalid=25, Unknown=0, NotChecked=0, Total=42 [2018-04-11 10:27:24,491 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 53 states. [2018-04-11 10:27:24,494 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 53 to 53. [2018-04-11 10:27:24,494 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 53 states. [2018-04-11 10:27:24,495 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 53 states to 53 states and 55 transitions. [2018-04-11 10:27:24,495 INFO L78 Accepts]: Start accepts. Automaton has 53 states and 55 transitions. Word has length 17 [2018-04-11 10:27:24,496 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-04-11 10:27:24,496 INFO L459 AbstractCegarLoop]: Abstraction has 53 states and 55 transitions. [2018-04-11 10:27:24,496 INFO L460 AbstractCegarLoop]: Interpolant automaton has 6 states. [2018-04-11 10:27:24,496 INFO L276 IsEmpty]: Start isEmpty. Operand 53 states and 55 transitions. [2018-04-11 10:27:24,496 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 18 [2018-04-11 10:27:24,496 INFO L347 BasicCegarLoop]: Found error trace [2018-04-11 10:27:24,497 INFO L355 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-04-11 10:27:24,497 INFO L408 AbstractCegarLoop]: === Iteration 4 === [mainErr1RequiresViolation, mainErr6AssertViolationMEMORY_FREE, mainErr4AssertViolationMEMORY_FREE, mainErr10AssertViolationMEMORY_FREE, mainErr11AssertViolationMEMORY_FREE, mainErr0RequiresViolation, mainErr12EnsuresViolationMEMORY_LEAK, mainErr3RequiresViolation, mainErr7AssertViolationMEMORY_FREE, mainErr9AssertViolationMEMORY_FREE, mainErr2RequiresViolation, mainErr8AssertViolationMEMORY_FREE, mainErr5AssertViolationMEMORY_FREE, __U_MULTI_f_________true_valid_memsafety_i__fooErr0RequiresViolation, __U_MULTI_f_________true_valid_memsafety_i__fooErr3RequiresViolation, __U_MULTI_f_________true_valid_memsafety_i__fooErr1RequiresViolation, __U_MULTI_f_________true_valid_memsafety_i__fooErr2RequiresViolation]=== [2018-04-11 10:27:24,497 INFO L82 PathProgramCache]: Analyzing trace with hash 1337247430, now seen corresponding path program 1 times [2018-04-11 10:27:24,497 INFO L213 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-04-11 10:27:24,497 INFO L68 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-04-11 10:27:24,498 INFO L119 rtionOrderModulation]: Craig nested/tree interpolation forces the following order [2018-04-11 10:27:24,498 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-04-11 10:27:24,498 INFO L119 rtionOrderModulation]: Craig nested/tree interpolation forces the following order [2018-04-11 10:27:24,511 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-04-11 10:27:24,511 WARN L137 erpolLogProxyWrapper]: Using partial proofs (cut at CNF-level). Set option :produce-proofs to true to get complete proofs. [2018-04-11 10:27:24,575 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 10:27:24,575 INFO L320 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-04-11 10:27:24,575 INFO L335 seRefinementStrategy]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2018-04-11 10:27:24,579 INFO L442 AbstractCegarLoop]: Interpolant automaton has 7 states [2018-04-11 10:27:24,579 INFO L132 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2018-04-11 10:27:24,579 INFO L133 InterpolantAutomaton]: CoverageRelationStatistics Valid=16, Invalid=26, Unknown=0, NotChecked=0, Total=42 [2018-04-11 10:27:24,579 INFO L87 Difference]: Start difference. First operand 53 states and 55 transitions. Second operand 7 states. [2018-04-11 10:27:24,668 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-04-11 10:27:24,668 INFO L93 Difference]: Finished difference Result 61 states and 63 transitions. [2018-04-11 10:27:24,669 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2018-04-11 10:27:24,669 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 17 [2018-04-11 10:27:24,669 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-04-11 10:27:24,669 INFO L225 Difference]: With dead ends: 61 [2018-04-11 10:27:24,669 INFO L226 Difference]: Without dead ends: 61 [2018-04-11 10:27:24,670 INFO L567 BasicCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=21, Invalid=35, Unknown=0, NotChecked=0, Total=56 [2018-04-11 10:27:24,670 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 61 states. [2018-04-11 10:27:24,672 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 61 to 56. [2018-04-11 10:27:24,672 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 56 states. [2018-04-11 10:27:24,672 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 56 states to 56 states and 58 transitions. [2018-04-11 10:27:24,673 INFO L78 Accepts]: Start accepts. Automaton has 56 states and 58 transitions. Word has length 17 [2018-04-11 10:27:24,673 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-04-11 10:27:24,673 INFO L459 AbstractCegarLoop]: Abstraction has 56 states and 58 transitions. [2018-04-11 10:27:24,673 INFO L460 AbstractCegarLoop]: Interpolant automaton has 7 states. [2018-04-11 10:27:24,673 INFO L276 IsEmpty]: Start isEmpty. Operand 56 states and 58 transitions. [2018-04-11 10:27:24,673 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 22 [2018-04-11 10:27:24,673 INFO L347 BasicCegarLoop]: Found error trace [2018-04-11 10:27:24,673 INFO L355 BasicCegarLoop]: trace histogram [2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-04-11 10:27:24,673 INFO L408 AbstractCegarLoop]: === Iteration 5 === [mainErr1RequiresViolation, mainErr6AssertViolationMEMORY_FREE, mainErr4AssertViolationMEMORY_FREE, mainErr10AssertViolationMEMORY_FREE, mainErr11AssertViolationMEMORY_FREE, mainErr0RequiresViolation, mainErr12EnsuresViolationMEMORY_LEAK, mainErr3RequiresViolation, mainErr7AssertViolationMEMORY_FREE, mainErr9AssertViolationMEMORY_FREE, mainErr2RequiresViolation, mainErr8AssertViolationMEMORY_FREE, mainErr5AssertViolationMEMORY_FREE, __U_MULTI_f_________true_valid_memsafety_i__fooErr0RequiresViolation, __U_MULTI_f_________true_valid_memsafety_i__fooErr3RequiresViolation, __U_MULTI_f_________true_valid_memsafety_i__fooErr1RequiresViolation, __U_MULTI_f_________true_valid_memsafety_i__fooErr2RequiresViolation]=== [2018-04-11 10:27:24,673 INFO L82 PathProgramCache]: Analyzing trace with hash 1186083357, now seen corresponding path program 1 times [2018-04-11 10:27:24,674 INFO L213 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-04-11 10:27:24,674 INFO L68 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-04-11 10:27:24,674 INFO L119 rtionOrderModulation]: Craig nested/tree interpolation forces the following order [2018-04-11 10:27:24,674 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-04-11 10:27:24,675 INFO L119 rtionOrderModulation]: Craig nested/tree interpolation forces the following order [2018-04-11 10:27:24,687 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-04-11 10:27:24,688 WARN L137 erpolLogProxyWrapper]: Using partial proofs (cut at CNF-level). Set option :produce-proofs to true to get complete proofs. [2018-04-11 10:27:24,779 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 10:27:24,780 INFO L308 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2018-04-11 10:27:24,780 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 10:27:24,792 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-04-11 10:27:24,813 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-04-11 10:27:24,819 INFO L270 TraceCheckSpWp]: Computing forward predicates... [2018-04-11 10:27:24,843 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 8 treesize of output 7 [2018-04-11 10:27:24,844 INFO L267 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2018-04-11 10:27:24,848 INFO L267 ElimStorePlain]: Start of recursive call 1: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-04-11 10:27:24,848 INFO L202 ElimStorePlain]: Needed 2 recursive calls to eliminate 1 variables, input treesize:15, output treesize:14 [2018-04-11 10:27:24,859 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 16 treesize of output 15 [2018-04-11 10:27:24,860 INFO L267 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2018-04-11 10:27:24,865 INFO L267 ElimStorePlain]: Start of recursive call 1: 1 dim-0 vars, 1 dim-1 vars, End of recursive call: 1 dim-0 vars, and 1 xjuncts. [2018-04-11 10:27:24,865 INFO L202 ElimStorePlain]: Needed 2 recursive calls to eliminate 2 variables, input treesize:22, output treesize:21 [2018-04-11 10:27:24,946 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 10:27:24,964 INFO L320 seRefinementStrategy]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2018-04-11 10:27:24,964 INFO L335 seRefinementStrategy]: Number of different interpolants: perfect sequences [] imperfect sequences [7, 8] total 11 [2018-04-11 10:27:24,965 INFO L442 AbstractCegarLoop]: Interpolant automaton has 12 states [2018-04-11 10:27:24,965 INFO L132 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2018-04-11 10:27:24,965 INFO L133 InterpolantAutomaton]: CoverageRelationStatistics Valid=36, Invalid=96, Unknown=0, NotChecked=0, Total=132 [2018-04-11 10:27:24,965 INFO L87 Difference]: Start difference. First operand 56 states and 58 transitions. Second operand 12 states. [2018-04-11 10:27:25,151 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-04-11 10:27:25,152 INFO L93 Difference]: Finished difference Result 71 states and 73 transitions. [2018-04-11 10:27:25,152 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2018-04-11 10:27:25,152 INFO L78 Accepts]: Start accepts. Automaton has 12 states. Word has length 21 [2018-04-11 10:27:25,152 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-04-11 10:27:25,152 INFO L225 Difference]: With dead ends: 71 [2018-04-11 10:27:25,152 INFO L226 Difference]: Without dead ends: 71 [2018-04-11 10:27:25,153 INFO L567 BasicCegarLoop]: 0 DeclaredPredicates, 32 GetRequests, 17 SyntacticMatches, 2 SemanticMatches, 13 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 34 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=58, Invalid=152, Unknown=0, NotChecked=0, Total=210 [2018-04-11 10:27:25,153 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 71 states. [2018-04-11 10:27:25,154 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 71 to 64. [2018-04-11 10:27:25,155 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 64 states. [2018-04-11 10:27:25,155 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 64 states to 64 states and 68 transitions. [2018-04-11 10:27:25,155 INFO L78 Accepts]: Start accepts. Automaton has 64 states and 68 transitions. Word has length 21 [2018-04-11 10:27:25,155 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-04-11 10:27:25,155 INFO L459 AbstractCegarLoop]: Abstraction has 64 states and 68 transitions. [2018-04-11 10:27:25,155 INFO L460 AbstractCegarLoop]: Interpolant automaton has 12 states. [2018-04-11 10:27:25,155 INFO L276 IsEmpty]: Start isEmpty. Operand 64 states and 68 transitions. [2018-04-11 10:27:25,156 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 26 [2018-04-11 10:27:25,156 INFO L347 BasicCegarLoop]: Found error trace [2018-04-11 10:27:25,156 INFO L355 BasicCegarLoop]: trace histogram [3, 3, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-04-11 10:27:25,156 INFO L408 AbstractCegarLoop]: === Iteration 6 === [mainErr1RequiresViolation, mainErr6AssertViolationMEMORY_FREE, mainErr4AssertViolationMEMORY_FREE, mainErr10AssertViolationMEMORY_FREE, mainErr11AssertViolationMEMORY_FREE, mainErr0RequiresViolation, mainErr12EnsuresViolationMEMORY_LEAK, mainErr3RequiresViolation, mainErr7AssertViolationMEMORY_FREE, mainErr9AssertViolationMEMORY_FREE, mainErr2RequiresViolation, mainErr8AssertViolationMEMORY_FREE, mainErr5AssertViolationMEMORY_FREE, __U_MULTI_f_________true_valid_memsafety_i__fooErr0RequiresViolation, __U_MULTI_f_________true_valid_memsafety_i__fooErr3RequiresViolation, __U_MULTI_f_________true_valid_memsafety_i__fooErr1RequiresViolation, __U_MULTI_f_________true_valid_memsafety_i__fooErr2RequiresViolation]=== [2018-04-11 10:27:25,156 INFO L82 PathProgramCache]: Analyzing trace with hash 1607211508, now seen corresponding path program 2 times [2018-04-11 10:27:25,156 INFO L213 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-04-11 10:27:25,156 INFO L68 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-04-11 10:27:25,157 INFO L119 rtionOrderModulation]: Craig nested/tree interpolation forces the following order [2018-04-11 10:27:25,157 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-04-11 10:27:25,157 INFO L119 rtionOrderModulation]: Craig nested/tree interpolation forces the following order [2018-04-11 10:27:25,167 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-04-11 10:27:25,168 WARN L137 erpolLogProxyWrapper]: Using partial proofs (cut at CNF-level). Set option :produce-proofs to true to get complete proofs. [2018-04-11 10:27:25,311 INFO L134 CoverageAnalysis]: Checked inductivity of 10 backedges. 0 proven. 10 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-04-11 10:27:25,311 INFO L308 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2018-04-11 10:27:25,311 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 10:27:25,317 INFO L103 rtionOrderModulation]: Keeping assertion order OUTSIDE_LOOP_FIRST1 [2018-04-11 10:27:25,333 INFO L242 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2018-04-11 10:27:25,333 INFO L243 tOrderPrioritization]: Conjunction of SSA is unsat [2018-04-11 10:27:25,335 INFO L270 TraceCheckSpWp]: Computing forward predicates... [2018-04-11 10:27:25,338 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 10:27:25,338 INFO L267 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2018-04-11 10:27:25,343 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 10:27:25,343 INFO L267 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 1 xjuncts. [2018-04-11 10:27:25,347 INFO L267 ElimStorePlain]: Start of recursive call 1: 2 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-04-11 10:27:25,347 INFO L202 ElimStorePlain]: Needed 3 recursive calls to eliminate 2 variables, input treesize:21, output treesize:19 [2018-04-11 10:27:25,370 INFO L700 Elim1Store]: detected not equals via solver [2018-04-11 10:27:25,370 INFO L700 Elim1Store]: detected not equals via solver [2018-04-11 10:27:25,371 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 10:27:25,371 INFO L267 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2018-04-11 10:27:25,378 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 16 treesize of output 19 [2018-04-11 10:27:25,378 INFO L267 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 1 xjuncts. [2018-04-11 10:27:25,385 INFO L267 ElimStorePlain]: Start of recursive call 1: 1 dim-0 vars, 2 dim-1 vars, End of recursive call: 1 dim-0 vars, and 1 xjuncts. [2018-04-11 10:27:25,385 INFO L202 ElimStorePlain]: Needed 3 recursive calls to eliminate 3 variables, input treesize:32, output treesize:25 [2018-04-11 10:27:25,504 INFO L134 CoverageAnalysis]: Checked inductivity of 10 backedges. 0 proven. 10 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-04-11 10:27:25,521 INFO L320 seRefinementStrategy]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2018-04-11 10:27:25,521 INFO L335 seRefinementStrategy]: Number of different interpolants: perfect sequences [] imperfect sequences [9, 9] total 16 [2018-04-11 10:27:25,521 INFO L442 AbstractCegarLoop]: Interpolant automaton has 17 states [2018-04-11 10:27:25,522 INFO L132 InterpolantAutomaton]: Constructing interpolant automaton starting with 17 interpolants. [2018-04-11 10:27:25,522 INFO L133 InterpolantAutomaton]: CoverageRelationStatistics Valid=49, Invalid=223, Unknown=0, NotChecked=0, Total=272 [2018-04-11 10:27:25,522 INFO L87 Difference]: Start difference. First operand 64 states and 68 transitions. Second operand 17 states. [2018-04-11 10:27:25,899 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-04-11 10:27:25,899 INFO L93 Difference]: Finished difference Result 81 states and 83 transitions. [2018-04-11 10:27:25,900 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2018-04-11 10:27:25,900 INFO L78 Accepts]: Start accepts. Automaton has 17 states. Word has length 25 [2018-04-11 10:27:25,900 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-04-11 10:27:25,900 INFO L225 Difference]: With dead ends: 81 [2018-04-11 10:27:25,901 INFO L226 Difference]: Without dead ends: 81 [2018-04-11 10:27:25,901 INFO L567 BasicCegarLoop]: 0 DeclaredPredicates, 42 GetRequests, 19 SyntacticMatches, 1 SemanticMatches, 22 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 113 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=114, Invalid=438, Unknown=0, NotChecked=0, Total=552 [2018-04-11 10:27:25,901 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 81 states. [2018-04-11 10:27:25,904 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 81 to 72. [2018-04-11 10:27:25,904 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 72 states. [2018-04-11 10:27:25,905 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 72 states to 72 states and 78 transitions. [2018-04-11 10:27:25,905 INFO L78 Accepts]: Start accepts. Automaton has 72 states and 78 transitions. Word has length 25 [2018-04-11 10:27:25,905 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-04-11 10:27:25,906 INFO L459 AbstractCegarLoop]: Abstraction has 72 states and 78 transitions. [2018-04-11 10:27:25,906 INFO L460 AbstractCegarLoop]: Interpolant automaton has 17 states. [2018-04-11 10:27:25,906 INFO L276 IsEmpty]: Start isEmpty. Operand 72 states and 78 transitions. [2018-04-11 10:27:25,906 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 30 [2018-04-11 10:27:25,906 INFO L347 BasicCegarLoop]: Found error trace [2018-04-11 10:27:25,907 INFO L355 BasicCegarLoop]: trace histogram [4, 4, 3, 3, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-04-11 10:27:25,907 INFO L408 AbstractCegarLoop]: === Iteration 7 === [mainErr1RequiresViolation, mainErr6AssertViolationMEMORY_FREE, mainErr4AssertViolationMEMORY_FREE, mainErr10AssertViolationMEMORY_FREE, mainErr11AssertViolationMEMORY_FREE, mainErr0RequiresViolation, mainErr12EnsuresViolationMEMORY_LEAK, mainErr3RequiresViolation, mainErr7AssertViolationMEMORY_FREE, mainErr9AssertViolationMEMORY_FREE, mainErr2RequiresViolation, mainErr8AssertViolationMEMORY_FREE, mainErr5AssertViolationMEMORY_FREE, __U_MULTI_f_________true_valid_memsafety_i__fooErr0RequiresViolation, __U_MULTI_f_________true_valid_memsafety_i__fooErr3RequiresViolation, __U_MULTI_f_________true_valid_memsafety_i__fooErr1RequiresViolation, __U_MULTI_f_________true_valid_memsafety_i__fooErr2RequiresViolation]=== [2018-04-11 10:27:25,907 INFO L82 PathProgramCache]: Analyzing trace with hash 124796491, now seen corresponding path program 3 times [2018-04-11 10:27:25,907 INFO L213 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-04-11 10:27:25,907 INFO L68 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-04-11 10:27:25,907 INFO L119 rtionOrderModulation]: Craig nested/tree interpolation forces the following order [2018-04-11 10:27:25,908 INFO L101 rtionOrderModulation]: Changing assertion order to NOT_INCREMENTALLY [2018-04-11 10:27:25,908 INFO L119 rtionOrderModulation]: Craig nested/tree interpolation forces the following order [2018-04-11 10:27:25,919 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-04-11 10:27:25,920 WARN L137 erpolLogProxyWrapper]: Using partial proofs (cut at CNF-level). Set option :produce-proofs to true to get complete proofs. [2018-04-11 10:27:26,053 INFO L134 CoverageAnalysis]: Checked inductivity of 21 backedges. 0 proven. 21 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-04-11 10:27:26,053 INFO L308 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2018-04-11 10:27:26,053 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 10:27:26,058 INFO L103 rtionOrderModulation]: Keeping assertion order OUTSIDE_LOOP_FIRST2 [2018-04-11 10:27:26,074 INFO L242 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST2 issued 2 check-sat command(s) [2018-04-11 10:27:26,074 INFO L243 tOrderPrioritization]: Conjunction of SSA is unsat [2018-04-11 10:27:26,075 INFO L270 TraceCheckSpWp]: Computing forward predicates... [2018-04-11 10:27:26,092 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 10:27:26,092 INFO L267 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2018-04-11 10:27:26,096 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 10:27:26,096 INFO L267 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 1 xjuncts. [2018-04-11 10:27:26,099 INFO L267 ElimStorePlain]: Start of recursive call 1: 2 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-04-11 10:27:26,100 INFO L202 ElimStorePlain]: Needed 3 recursive calls to eliminate 2 variables, input treesize:18, output treesize:16 [2018-04-11 10:27:26,122 INFO L700 Elim1Store]: detected not equals via solver [2018-04-11 10:27:26,123 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 16 treesize of output 19 [2018-04-11 10:27:26,123 INFO L267 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2018-04-11 10:27:26,131 INFO L700 Elim1Store]: detected not equals via solver [2018-04-11 10:27:26,131 INFO L700 Elim1Store]: detected not equals via solver [2018-04-11 10:27:26,132 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 10:27:26,132 INFO L267 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 1 xjuncts. [2018-04-11 10:27:26,136 INFO L267 ElimStorePlain]: Start of recursive call 1: 2 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-04-11 10:27:26,136 INFO L202 ElimStorePlain]: Needed 3 recursive calls to eliminate 2 variables, input treesize:29, output treesize:22 [2018-04-11 10:27:26,252 INFO L134 CoverageAnalysis]: Checked inductivity of 21 backedges. 8 proven. 3 refuted. 0 times theorem prover too weak. 10 trivial. 0 not checked. [2018-04-11 10:27:26,270 INFO L320 seRefinementStrategy]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2018-04-11 10:27:26,270 INFO L335 seRefinementStrategy]: Number of different interpolants: perfect sequences [] imperfect sequences [10, 8] total 17 [2018-04-11 10:27:26,270 INFO L442 AbstractCegarLoop]: Interpolant automaton has 18 states [2018-04-11 10:27:26,270 INFO L132 InterpolantAutomaton]: Constructing interpolant automaton starting with 18 interpolants. [2018-04-11 10:27:26,270 INFO L133 InterpolantAutomaton]: CoverageRelationStatistics Valid=47, Invalid=259, Unknown=0, NotChecked=0, Total=306 [2018-04-11 10:27:26,271 INFO L87 Difference]: Start difference. First operand 72 states and 78 transitions. Second operand 18 states. [2018-04-11 10:27:26,813 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-04-11 10:27:26,813 INFO L93 Difference]: Finished difference Result 98 states and 102 transitions. [2018-04-11 10:27:26,814 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2018-04-11 10:27:26,814 INFO L78 Accepts]: Start accepts. Automaton has 18 states. Word has length 29 [2018-04-11 10:27:26,814 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-04-11 10:27:26,816 INFO L225 Difference]: With dead ends: 98 [2018-04-11 10:27:26,816 INFO L226 Difference]: Without dead ends: 98 [2018-04-11 10:27:26,817 INFO L567 BasicCegarLoop]: 0 DeclaredPredicates, 51 GetRequests, 23 SyntacticMatches, 1 SemanticMatches, 27 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 147 ImplicationChecksByTransitivity, 0.4s TimeCoverageRelationStatistics Valid=168, Invalid=644, Unknown=0, NotChecked=0, Total=812 [2018-04-11 10:27:26,817 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 98 states. [2018-04-11 10:27:26,820 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 98 to 78. [2018-04-11 10:27:26,820 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 78 states. [2018-04-11 10:27:26,821 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 78 states to 78 states and 84 transitions. [2018-04-11 10:27:26,821 INFO L78 Accepts]: Start accepts. Automaton has 78 states and 84 transitions. Word has length 29 [2018-04-11 10:27:26,821 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-04-11 10:27:26,821 INFO L459 AbstractCegarLoop]: Abstraction has 78 states and 84 transitions. [2018-04-11 10:27:26,821 INFO L460 AbstractCegarLoop]: Interpolant automaton has 18 states. [2018-04-11 10:27:26,821 INFO L276 IsEmpty]: Start isEmpty. Operand 78 states and 84 transitions. [2018-04-11 10:27:26,822 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 41 [2018-04-11 10:27:26,822 INFO L347 BasicCegarLoop]: Found error trace [2018-04-11 10:27:26,822 INFO L355 BasicCegarLoop]: trace histogram [6, 5, 5, 5, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-04-11 10:27:26,822 INFO L408 AbstractCegarLoop]: === Iteration 8 === [mainErr1RequiresViolation, mainErr6AssertViolationMEMORY_FREE, mainErr4AssertViolationMEMORY_FREE, mainErr10AssertViolationMEMORY_FREE, mainErr11AssertViolationMEMORY_FREE, mainErr0RequiresViolation, mainErr12EnsuresViolationMEMORY_LEAK, mainErr3RequiresViolation, mainErr7AssertViolationMEMORY_FREE, mainErr9AssertViolationMEMORY_FREE, mainErr2RequiresViolation, mainErr8AssertViolationMEMORY_FREE, mainErr5AssertViolationMEMORY_FREE, __U_MULTI_f_________true_valid_memsafety_i__fooErr0RequiresViolation, __U_MULTI_f_________true_valid_memsafety_i__fooErr3RequiresViolation, __U_MULTI_f_________true_valid_memsafety_i__fooErr1RequiresViolation, __U_MULTI_f_________true_valid_memsafety_i__fooErr2RequiresViolation]=== [2018-04-11 10:27:26,823 INFO L82 PathProgramCache]: Analyzing trace with hash 1358308887, now seen corresponding path program 1 times [2018-04-11 10:27:26,823 INFO L213 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-04-11 10:27:26,823 INFO L68 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-04-11 10:27:26,823 INFO L119 rtionOrderModulation]: Craig nested/tree interpolation forces the following order [2018-04-11 10:27:26,823 INFO L101 rtionOrderModulation]: Changing assertion order to NOT_INCREMENTALLY [2018-04-11 10:27:26,824 INFO L119 rtionOrderModulation]: Craig nested/tree interpolation forces the following order [2018-04-11 10:27:26,832 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-04-11 10:27:26,832 WARN L137 erpolLogProxyWrapper]: Using partial proofs (cut at CNF-level). Set option :produce-proofs to true to get complete proofs. [2018-04-11 10:27:26,855 INFO L134 CoverageAnalysis]: Checked inductivity of 50 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 50 trivial. 0 not checked. [2018-04-11 10:27:26,855 INFO L320 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-04-11 10:27:26,855 INFO L335 seRefinementStrategy]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2018-04-11 10:27:26,855 INFO L442 AbstractCegarLoop]: Interpolant automaton has 4 states [2018-04-11 10:27:26,855 INFO L132 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2018-04-11 10:27:26,855 INFO L133 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2018-04-11 10:27:26,855 INFO L87 Difference]: Start difference. First operand 78 states and 84 transitions. Second operand 4 states. [2018-04-11 10:27:26,879 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-04-11 10:27:26,879 INFO L93 Difference]: Finished difference Result 76 states and 80 transitions. [2018-04-11 10:27:26,879 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2018-04-11 10:27:26,879 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 40 [2018-04-11 10:27:26,880 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-04-11 10:27:26,880 INFO L225 Difference]: With dead ends: 76 [2018-04-11 10:27:26,880 INFO L226 Difference]: Without dead ends: 76 [2018-04-11 10:27:26,880 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 10:27:26,881 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 76 states. [2018-04-11 10:27:26,883 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 76 to 76. [2018-04-11 10:27:26,883 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 76 states. [2018-04-11 10:27:26,884 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 76 states to 76 states and 80 transitions. [2018-04-11 10:27:26,884 INFO L78 Accepts]: Start accepts. Automaton has 76 states and 80 transitions. Word has length 40 [2018-04-11 10:27:26,885 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-04-11 10:27:26,885 INFO L459 AbstractCegarLoop]: Abstraction has 76 states and 80 transitions. [2018-04-11 10:27:26,885 INFO L460 AbstractCegarLoop]: Interpolant automaton has 4 states. [2018-04-11 10:27:26,885 INFO L276 IsEmpty]: Start isEmpty. Operand 76 states and 80 transitions. [2018-04-11 10:27:26,885 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 41 [2018-04-11 10:27:26,885 INFO L347 BasicCegarLoop]: Found error trace [2018-04-11 10:27:26,886 INFO L355 BasicCegarLoop]: trace histogram [6, 5, 5, 5, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-04-11 10:27:26,886 INFO L408 AbstractCegarLoop]: === Iteration 9 === [mainErr1RequiresViolation, mainErr6AssertViolationMEMORY_FREE, mainErr4AssertViolationMEMORY_FREE, mainErr10AssertViolationMEMORY_FREE, mainErr11AssertViolationMEMORY_FREE, mainErr0RequiresViolation, mainErr12EnsuresViolationMEMORY_LEAK, mainErr3RequiresViolation, mainErr7AssertViolationMEMORY_FREE, mainErr9AssertViolationMEMORY_FREE, mainErr2RequiresViolation, mainErr8AssertViolationMEMORY_FREE, mainErr5AssertViolationMEMORY_FREE, __U_MULTI_f_________true_valid_memsafety_i__fooErr0RequiresViolation, __U_MULTI_f_________true_valid_memsafety_i__fooErr3RequiresViolation, __U_MULTI_f_________true_valid_memsafety_i__fooErr1RequiresViolation, __U_MULTI_f_________true_valid_memsafety_i__fooErr2RequiresViolation]=== [2018-04-11 10:27:26,886 INFO L82 PathProgramCache]: Analyzing trace with hash 1358308888, now seen corresponding path program 1 times [2018-04-11 10:27:26,886 INFO L213 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-04-11 10:27:26,886 INFO L68 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-04-11 10:27:26,887 INFO L119 rtionOrderModulation]: Craig nested/tree interpolation forces the following order [2018-04-11 10:27:26,887 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-04-11 10:27:26,887 INFO L119 rtionOrderModulation]: Craig nested/tree interpolation forces the following order [2018-04-11 10:27:26,895 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-04-11 10:27:26,896 WARN L137 erpolLogProxyWrapper]: Using partial proofs (cut at CNF-level). Set option :produce-proofs to true to get complete proofs. [2018-04-11 10:27:26,950 INFO L134 CoverageAnalysis]: Checked inductivity of 50 backedges. 0 proven. 50 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-04-11 10:27:26,950 INFO L308 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2018-04-11 10:27:26,950 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 10:27:26,958 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-04-11 10:27:26,978 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-04-11 10:27:26,981 INFO L270 TraceCheckSpWp]: Computing forward predicates... [2018-04-11 10:27:27,020 INFO L134 CoverageAnalysis]: Checked inductivity of 50 backedges. 0 proven. 50 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-04-11 10:27:27,037 INFO L320 seRefinementStrategy]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2018-04-11 10:27:27,038 INFO L335 seRefinementStrategy]: Number of different interpolants: perfect sequences [] imperfect sequences [9, 9] total 15 [2018-04-11 10:27:27,038 INFO L442 AbstractCegarLoop]: Interpolant automaton has 15 states [2018-04-11 10:27:27,038 INFO L132 InterpolantAutomaton]: Constructing interpolant automaton starting with 15 interpolants. [2018-04-11 10:27:27,038 INFO L133 InterpolantAutomaton]: CoverageRelationStatistics Valid=90, Invalid=120, Unknown=0, NotChecked=0, Total=210 [2018-04-11 10:27:27,038 INFO L87 Difference]: Start difference. First operand 76 states and 80 transitions. Second operand 15 states. [2018-04-11 10:27:27,135 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-04-11 10:27:27,135 INFO L93 Difference]: Finished difference Result 102 states and 104 transitions. [2018-04-11 10:27:27,136 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2018-04-11 10:27:27,136 INFO L78 Accepts]: Start accepts. Automaton has 15 states. Word has length 40 [2018-04-11 10:27:27,136 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-04-11 10:27:27,136 INFO L225 Difference]: With dead ends: 102 [2018-04-11 10:27:27,136 INFO L226 Difference]: Without dead ends: 102 [2018-04-11 10:27:27,137 INFO L567 BasicCegarLoop]: 0 DeclaredPredicates, 48 GetRequests, 35 SyntacticMatches, 0 SemanticMatches, 13 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 57 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=90, Invalid=120, Unknown=0, NotChecked=0, Total=210 [2018-04-11 10:27:27,137 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 102 states. [2018-04-11 10:27:27,140 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 102 to 92. [2018-04-11 10:27:27,140 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 92 states. [2018-04-11 10:27:27,141 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 92 states to 92 states and 99 transitions. [2018-04-11 10:27:27,141 INFO L78 Accepts]: Start accepts. Automaton has 92 states and 99 transitions. Word has length 40 [2018-04-11 10:27:27,141 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-04-11 10:27:27,141 INFO L459 AbstractCegarLoop]: Abstraction has 92 states and 99 transitions. [2018-04-11 10:27:27,141 INFO L460 AbstractCegarLoop]: Interpolant automaton has 15 states. [2018-04-11 10:27:27,141 INFO L276 IsEmpty]: Start isEmpty. Operand 92 states and 99 transitions. [2018-04-11 10:27:27,142 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 45 [2018-04-11 10:27:27,142 INFO L347 BasicCegarLoop]: Found error trace [2018-04-11 10:27:27,142 INFO L355 BasicCegarLoop]: trace histogram [7, 6, 6, 6, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-04-11 10:27:27,142 INFO L408 AbstractCegarLoop]: === Iteration 10 === [mainErr1RequiresViolation, mainErr6AssertViolationMEMORY_FREE, mainErr4AssertViolationMEMORY_FREE, mainErr10AssertViolationMEMORY_FREE, mainErr11AssertViolationMEMORY_FREE, mainErr0RequiresViolation, mainErr12EnsuresViolationMEMORY_LEAK, mainErr3RequiresViolation, mainErr7AssertViolationMEMORY_FREE, mainErr9AssertViolationMEMORY_FREE, mainErr2RequiresViolation, mainErr8AssertViolationMEMORY_FREE, mainErr5AssertViolationMEMORY_FREE, __U_MULTI_f_________true_valid_memsafety_i__fooErr0RequiresViolation, __U_MULTI_f_________true_valid_memsafety_i__fooErr3RequiresViolation, __U_MULTI_f_________true_valid_memsafety_i__fooErr1RequiresViolation, __U_MULTI_f_________true_valid_memsafety_i__fooErr2RequiresViolation]=== [2018-04-11 10:27:27,142 INFO L82 PathProgramCache]: Analyzing trace with hash 412608737, now seen corresponding path program 2 times [2018-04-11 10:27:27,142 INFO L213 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-04-11 10:27:27,143 INFO L68 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-04-11 10:27:27,143 INFO L119 rtionOrderModulation]: Craig nested/tree interpolation forces the following order [2018-04-11 10:27:27,143 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-04-11 10:27:27,143 INFO L119 rtionOrderModulation]: Craig nested/tree interpolation forces the following order [2018-04-11 10:27:27,152 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-04-11 10:27:27,153 WARN L137 erpolLogProxyWrapper]: Using partial proofs (cut at CNF-level). Set option :produce-proofs to true to get complete proofs. [2018-04-11 10:27:27,219 INFO L134 CoverageAnalysis]: Checked inductivity of 72 backedges. 0 proven. 72 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-04-11 10:27:27,219 INFO L308 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2018-04-11 10:27:27,219 INFO L213 ckRefinementStrategy]: Switched to mode Z3_FP No working directory specified, using /home/ultimate/work/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 6 with z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 6 with z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:12000 [2018-04-11 10:27:27,227 INFO L103 rtionOrderModulation]: Keeping assertion order OUTSIDE_LOOP_FIRST1 [2018-04-11 10:27:27,246 INFO L242 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 1 check-sat command(s) [2018-04-11 10:27:27,246 INFO L243 tOrderPrioritization]: Conjunction of SSA is unsat [2018-04-11 10:27:27,248 INFO L270 TraceCheckSpWp]: Computing forward predicates... [2018-04-11 10:27:27,253 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 10:27:27,253 INFO L267 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2018-04-11 10:27:27,258 INFO L267 ElimStorePlain]: Start of recursive call 1: 1 dim-0 vars, 1 dim-1 vars, End of recursive call: 1 dim-0 vars, and 1 xjuncts. [2018-04-11 10:27:27,258 INFO L202 ElimStorePlain]: Needed 2 recursive calls to eliminate 2 variables, input treesize:15, output treesize:14 [2018-04-11 10:27:27,406 INFO L134 CoverageAnalysis]: Checked inductivity of 72 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 72 trivial. 0 not checked. [2018-04-11 10:27:27,436 INFO L320 seRefinementStrategy]: Constructing automaton from 1 perfect and 1 imperfect interpolant sequences. [2018-04-11 10:27:27,436 INFO L335 seRefinementStrategy]: Number of different interpolants: perfect sequences [7] imperfect sequences [10] total 15 [2018-04-11 10:27:27,437 INFO L442 AbstractCegarLoop]: Interpolant automaton has 15 states [2018-04-11 10:27:27,437 INFO L132 InterpolantAutomaton]: Constructing interpolant automaton starting with 15 interpolants. [2018-04-11 10:27:27,437 INFO L133 InterpolantAutomaton]: CoverageRelationStatistics Valid=52, Invalid=158, Unknown=0, NotChecked=0, Total=210 [2018-04-11 10:27:27,437 INFO L87 Difference]: Start difference. First operand 92 states and 99 transitions. Second operand 15 states. [2018-04-11 10:27:27,879 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-04-11 10:27:27,879 INFO L93 Difference]: Finished difference Result 100 states and 102 transitions. [2018-04-11 10:27:27,879 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 22 states. [2018-04-11 10:27:27,879 INFO L78 Accepts]: Start accepts. Automaton has 15 states. Word has length 44 [2018-04-11 10:27:27,879 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-04-11 10:27:27,879 INFO L225 Difference]: With dead ends: 100 [2018-04-11 10:27:27,880 INFO L226 Difference]: Without dead ends: 100 [2018-04-11 10:27:27,880 INFO L567 BasicCegarLoop]: 0 DeclaredPredicates, 72 GetRequests, 40 SyntacticMatches, 0 SemanticMatches, 32 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 195 ImplicationChecksByTransitivity, 0.4s TimeCoverageRelationStatistics Valid=294, Invalid=828, Unknown=0, NotChecked=0, Total=1122 [2018-04-11 10:27:27,880 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 100 states. [2018-04-11 10:27:27,882 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 100 to 90. [2018-04-11 10:27:27,882 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 90 states. [2018-04-11 10:27:27,882 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 90 states to 90 states and 91 transitions. [2018-04-11 10:27:27,883 INFO L78 Accepts]: Start accepts. Automaton has 90 states and 91 transitions. Word has length 44 [2018-04-11 10:27:27,883 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-04-11 10:27:27,883 INFO L459 AbstractCegarLoop]: Abstraction has 90 states and 91 transitions. [2018-04-11 10:27:27,883 INFO L460 AbstractCegarLoop]: Interpolant automaton has 15 states. [2018-04-11 10:27:27,883 INFO L276 IsEmpty]: Start isEmpty. Operand 90 states and 91 transitions. [2018-04-11 10:27:27,884 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 80 [2018-04-11 10:27:27,884 INFO L347 BasicCegarLoop]: Found error trace [2018-04-11 10:27:27,884 INFO L355 BasicCegarLoop]: trace histogram [8, 7, 7, 7, 7, 6, 6, 6, 1, 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 10:27:27,884 INFO L408 AbstractCegarLoop]: === Iteration 11 === [mainErr1RequiresViolation, mainErr6AssertViolationMEMORY_FREE, mainErr4AssertViolationMEMORY_FREE, mainErr10AssertViolationMEMORY_FREE, mainErr11AssertViolationMEMORY_FREE, mainErr0RequiresViolation, mainErr12EnsuresViolationMEMORY_LEAK, mainErr3RequiresViolation, mainErr7AssertViolationMEMORY_FREE, mainErr9AssertViolationMEMORY_FREE, mainErr2RequiresViolation, mainErr8AssertViolationMEMORY_FREE, mainErr5AssertViolationMEMORY_FREE, __U_MULTI_f_________true_valid_memsafety_i__fooErr0RequiresViolation, __U_MULTI_f_________true_valid_memsafety_i__fooErr3RequiresViolation, __U_MULTI_f_________true_valid_memsafety_i__fooErr1RequiresViolation, __U_MULTI_f_________true_valid_memsafety_i__fooErr2RequiresViolation]=== [2018-04-11 10:27:27,884 INFO L82 PathProgramCache]: Analyzing trace with hash 556961057, now seen corresponding path program 1 times [2018-04-11 10:27:27,884 INFO L213 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-04-11 10:27:27,885 INFO L68 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-04-11 10:27:27,885 INFO L119 rtionOrderModulation]: Craig nested/tree interpolation forces the following order [2018-04-11 10:27:27,885 INFO L101 rtionOrderModulation]: Changing assertion order to NOT_INCREMENTALLY [2018-04-11 10:27:27,885 INFO L119 rtionOrderModulation]: Craig nested/tree interpolation forces the following order [2018-04-11 10:27:27,897 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-04-11 10:27:27,898 WARN L137 erpolLogProxyWrapper]: Using partial proofs (cut at CNF-level). Set option :produce-proofs to true to get complete proofs. [2018-04-11 10:27:27,992 INFO L134 CoverageAnalysis]: Checked inductivity of 170 backedges. 0 proven. 98 refuted. 0 times theorem prover too weak. 72 trivial. 0 not checked. [2018-04-11 10:27:27,993 INFO L308 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2018-04-11 10:27:27,993 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 7 with z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 7 with z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:12000 [2018-04-11 10:27:28,001 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-04-11 10:27:28,030 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-04-11 10:27:28,033 INFO L270 TraceCheckSpWp]: Computing forward predicates... [2018-04-11 10:27:28,127 INFO L134 CoverageAnalysis]: Checked inductivity of 170 backedges. 0 proven. 98 refuted. 0 times theorem prover too weak. 72 trivial. 0 not checked. [2018-04-11 10:27:28,146 INFO L320 seRefinementStrategy]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2018-04-11 10:27:28,146 INFO L335 seRefinementStrategy]: Number of different interpolants: perfect sequences [] imperfect sequences [12, 11] total 20 [2018-04-11 10:27:28,146 INFO L442 AbstractCegarLoop]: Interpolant automaton has 20 states [2018-04-11 10:27:28,147 INFO L132 InterpolantAutomaton]: Constructing interpolant automaton starting with 20 interpolants. [2018-04-11 10:27:28,147 INFO L133 InterpolantAutomaton]: CoverageRelationStatistics Valid=136, Invalid=244, Unknown=0, NotChecked=0, Total=380 [2018-04-11 10:27:28,147 INFO L87 Difference]: Start difference. First operand 90 states and 91 transitions. Second operand 20 states. [2018-04-11 10:27:28,231 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-04-11 10:27:28,231 INFO L93 Difference]: Finished difference Result 106 states and 107 transitions. [2018-04-11 10:27:28,231 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2018-04-11 10:27:28,231 INFO L78 Accepts]: Start accepts. Automaton has 20 states. Word has length 79 [2018-04-11 10:27:28,232 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-04-11 10:27:28,232 INFO L225 Difference]: With dead ends: 106 [2018-04-11 10:27:28,232 INFO L226 Difference]: Without dead ends: 106 [2018-04-11 10:27:28,232 INFO L567 BasicCegarLoop]: 0 DeclaredPredicates, 91 GetRequests, 71 SyntacticMatches, 1 SemanticMatches, 19 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 117 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=155, Invalid=265, Unknown=0, NotChecked=0, Total=420 [2018-04-11 10:27:28,232 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 106 states. [2018-04-11 10:27:28,233 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 106 to 102. [2018-04-11 10:27:28,234 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 102 states. [2018-04-11 10:27:28,234 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 102 states to 102 states and 103 transitions. [2018-04-11 10:27:28,234 INFO L78 Accepts]: Start accepts. Automaton has 102 states and 103 transitions. Word has length 79 [2018-04-11 10:27:28,234 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-04-11 10:27:28,234 INFO L459 AbstractCegarLoop]: Abstraction has 102 states and 103 transitions. [2018-04-11 10:27:28,234 INFO L460 AbstractCegarLoop]: Interpolant automaton has 20 states. [2018-04-11 10:27:28,234 INFO L276 IsEmpty]: Start isEmpty. Operand 102 states and 103 transitions. [2018-04-11 10:27:28,235 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 92 [2018-04-11 10:27:28,235 INFO L347 BasicCegarLoop]: Found error trace [2018-04-11 10:27:28,235 INFO L355 BasicCegarLoop]: trace histogram [9, 9, 8, 8, 8, 8, 8, 8, 1, 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 10:27:28,235 INFO L408 AbstractCegarLoop]: === Iteration 12 === [mainErr1RequiresViolation, mainErr6AssertViolationMEMORY_FREE, mainErr4AssertViolationMEMORY_FREE, mainErr10AssertViolationMEMORY_FREE, mainErr11AssertViolationMEMORY_FREE, mainErr0RequiresViolation, mainErr12EnsuresViolationMEMORY_LEAK, mainErr3RequiresViolation, mainErr7AssertViolationMEMORY_FREE, mainErr9AssertViolationMEMORY_FREE, mainErr2RequiresViolation, mainErr8AssertViolationMEMORY_FREE, mainErr5AssertViolationMEMORY_FREE, __U_MULTI_f_________true_valid_memsafety_i__fooErr0RequiresViolation, __U_MULTI_f_________true_valid_memsafety_i__fooErr3RequiresViolation, __U_MULTI_f_________true_valid_memsafety_i__fooErr1RequiresViolation, __U_MULTI_f_________true_valid_memsafety_i__fooErr2RequiresViolation]=== [2018-04-11 10:27:28,236 INFO L82 PathProgramCache]: Analyzing trace with hash -1434925750, now seen corresponding path program 2 times [2018-04-11 10:27:28,236 INFO L213 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-04-11 10:27:28,236 INFO L68 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-04-11 10:27:28,236 INFO L119 rtionOrderModulation]: Craig nested/tree interpolation forces the following order [2018-04-11 10:27:28,236 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-04-11 10:27:28,237 INFO L119 rtionOrderModulation]: Craig nested/tree interpolation forces the following order [2018-04-11 10:27:28,247 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-04-11 10:27:28,248 WARN L137 erpolLogProxyWrapper]: Using partial proofs (cut at CNF-level). Set option :produce-proofs to true to get complete proofs. [2018-04-11 10:27:28,344 INFO L134 CoverageAnalysis]: Checked inductivity of 256 backedges. 0 proven. 128 refuted. 0 times theorem prover too weak. 128 trivial. 0 not checked. [2018-04-11 10:27:28,344 INFO L308 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2018-04-11 10:27:28,344 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 8 with z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 8 with z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:12000 [2018-04-11 10:27:28,349 INFO L103 rtionOrderModulation]: Keeping assertion order OUTSIDE_LOOP_FIRST1 [2018-04-11 10:27:28,378 INFO L242 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2018-04-11 10:27:28,378 INFO L243 tOrderPrioritization]: Conjunction of SSA is unsat [2018-04-11 10:27:28,381 INFO L270 TraceCheckSpWp]: Computing forward predicates... [2018-04-11 10:27:28,460 INFO L134 CoverageAnalysis]: Checked inductivity of 256 backedges. 0 proven. 128 refuted. 0 times theorem prover too weak. 128 trivial. 0 not checked. [2018-04-11 10:27:28,478 INFO L320 seRefinementStrategy]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2018-04-11 10:27:28,478 INFO L335 seRefinementStrategy]: Number of different interpolants: perfect sequences [] imperfect sequences [13, 12] total 22 [2018-04-11 10:27:28,478 INFO L442 AbstractCegarLoop]: Interpolant automaton has 22 states [2018-04-11 10:27:28,478 INFO L132 InterpolantAutomaton]: Constructing interpolant automaton starting with 22 interpolants. [2018-04-11 10:27:28,478 INFO L133 InterpolantAutomaton]: CoverageRelationStatistics Valid=166, Invalid=296, Unknown=0, NotChecked=0, Total=462 [2018-04-11 10:27:28,479 INFO L87 Difference]: Start difference. First operand 102 states and 103 transitions. Second operand 22 states. [2018-04-11 10:27:28,608 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-04-11 10:27:28,608 INFO L93 Difference]: Finished difference Result 114 states and 115 transitions. [2018-04-11 10:27:28,608 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2018-04-11 10:27:28,608 INFO L78 Accepts]: Start accepts. Automaton has 22 states. Word has length 91 [2018-04-11 10:27:28,609 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-04-11 10:27:28,609 INFO L225 Difference]: With dead ends: 114 [2018-04-11 10:27:28,609 INFO L226 Difference]: Without dead ends: 114 [2018-04-11 10:27:28,610 INFO L567 BasicCegarLoop]: 0 DeclaredPredicates, 104 GetRequests, 82 SyntacticMatches, 1 SemanticMatches, 21 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 150 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=187, Invalid=319, Unknown=0, NotChecked=0, Total=506 [2018-04-11 10:27:28,610 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 114 states. [2018-04-11 10:27:28,612 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 114 to 110. [2018-04-11 10:27:28,612 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 110 states. [2018-04-11 10:27:28,613 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 110 states to 110 states and 111 transitions. [2018-04-11 10:27:28,613 INFO L78 Accepts]: Start accepts. Automaton has 110 states and 111 transitions. Word has length 91 [2018-04-11 10:27:28,613 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-04-11 10:27:28,613 INFO L459 AbstractCegarLoop]: Abstraction has 110 states and 111 transitions. [2018-04-11 10:27:28,613 INFO L460 AbstractCegarLoop]: Interpolant automaton has 22 states. [2018-04-11 10:27:28,613 INFO L276 IsEmpty]: Start isEmpty. Operand 110 states and 111 transitions. [2018-04-11 10:27:28,615 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 100 [2018-04-11 10:27:28,615 INFO L347 BasicCegarLoop]: Found error trace [2018-04-11 10:27:28,615 INFO L355 BasicCegarLoop]: trace histogram [10, 10, 9, 9, 9, 9, 9, 9, 1, 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 10:27:28,615 INFO L408 AbstractCegarLoop]: === Iteration 13 === [mainErr1RequiresViolation, mainErr6AssertViolationMEMORY_FREE, mainErr4AssertViolationMEMORY_FREE, mainErr10AssertViolationMEMORY_FREE, mainErr11AssertViolationMEMORY_FREE, mainErr0RequiresViolation, mainErr12EnsuresViolationMEMORY_LEAK, mainErr3RequiresViolation, mainErr7AssertViolationMEMORY_FREE, mainErr9AssertViolationMEMORY_FREE, mainErr2RequiresViolation, mainErr8AssertViolationMEMORY_FREE, mainErr5AssertViolationMEMORY_FREE, __U_MULTI_f_________true_valid_memsafety_i__fooErr0RequiresViolation, __U_MULTI_f_________true_valid_memsafety_i__fooErr3RequiresViolation, __U_MULTI_f_________true_valid_memsafety_i__fooErr1RequiresViolation, __U_MULTI_f_________true_valid_memsafety_i__fooErr2RequiresViolation]=== [2018-04-11 10:27:28,615 INFO L82 PathProgramCache]: Analyzing trace with hash -1034252502, now seen corresponding path program 3 times [2018-04-11 10:27:28,615 INFO L213 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-04-11 10:27:28,615 INFO L68 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-04-11 10:27:28,616 INFO L119 rtionOrderModulation]: Craig nested/tree interpolation forces the following order [2018-04-11 10:27:28,616 INFO L101 rtionOrderModulation]: Changing assertion order to NOT_INCREMENTALLY [2018-04-11 10:27:28,616 INFO L119 rtionOrderModulation]: Craig nested/tree interpolation forces the following order [2018-04-11 10:27:28,632 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-04-11 10:27:28,633 WARN L137 erpolLogProxyWrapper]: Using partial proofs (cut at CNF-level). Set option :produce-proofs to true to get complete proofs. [2018-04-11 10:27:28,835 INFO L134 CoverageAnalysis]: Checked inductivity of 324 backedges. 0 proven. 162 refuted. 0 times theorem prover too weak. 162 trivial. 0 not checked. [2018-04-11 10:27:28,835 INFO L308 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2018-04-11 10:27:28,835 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 9 with z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 9 with z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:12000 [2018-04-11 10:27:28,843 INFO L103 rtionOrderModulation]: Keeping assertion order OUTSIDE_LOOP_FIRST2 [2018-04-11 10:27:28,982 INFO L242 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST2 issued 10 check-sat command(s) [2018-04-11 10:27:28,982 INFO L243 tOrderPrioritization]: Conjunction of SSA is unsat [2018-04-11 10:27:28,987 INFO L270 TraceCheckSpWp]: Computing forward predicates... [2018-04-11 10:27:29,115 INFO L134 CoverageAnalysis]: Checked inductivity of 324 backedges. 34 proven. 162 refuted. 0 times theorem prover too weak. 128 trivial. 0 not checked. [2018-04-11 10:27:29,133 INFO L320 seRefinementStrategy]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2018-04-11 10:27:29,133 INFO L335 seRefinementStrategy]: Number of different interpolants: perfect sequences [] imperfect sequences [14, 16] total 28 [2018-04-11 10:27:29,133 INFO L442 AbstractCegarLoop]: Interpolant automaton has 28 states [2018-04-11 10:27:29,134 INFO L132 InterpolantAutomaton]: Constructing interpolant automaton starting with 28 interpolants. [2018-04-11 10:27:29,134 INFO L133 InterpolantAutomaton]: CoverageRelationStatistics Valid=245, Invalid=511, Unknown=0, NotChecked=0, Total=756 [2018-04-11 10:27:29,134 INFO L87 Difference]: Start difference. First operand 110 states and 111 transitions. Second operand 28 states. [2018-04-11 10:27:29,238 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-04-11 10:27:29,238 INFO L93 Difference]: Finished difference Result 128 states and 130 transitions. [2018-04-11 10:27:29,238 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 17 states. [2018-04-11 10:27:29,238 INFO L78 Accepts]: Start accepts. Automaton has 28 states. Word has length 99 [2018-04-11 10:27:29,238 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-04-11 10:27:29,239 INFO L225 Difference]: With dead ends: 128 [2018-04-11 10:27:29,239 INFO L226 Difference]: Without dead ends: 128 [2018-04-11 10:27:29,239 INFO L567 BasicCegarLoop]: 0 DeclaredPredicates, 113 GetRequests, 86 SyntacticMatches, 0 SemanticMatches, 27 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 243 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=271, Invalid=541, Unknown=0, NotChecked=0, Total=812 [2018-04-11 10:27:29,239 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 128 states. [2018-04-11 10:27:29,240 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 128 to 122. [2018-04-11 10:27:29,240 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 122 states. [2018-04-11 10:27:29,241 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 122 states to 122 states and 123 transitions. [2018-04-11 10:27:29,241 INFO L78 Accepts]: Start accepts. Automaton has 122 states and 123 transitions. Word has length 99 [2018-04-11 10:27:29,241 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-04-11 10:27:29,241 INFO L459 AbstractCegarLoop]: Abstraction has 122 states and 123 transitions. [2018-04-11 10:27:29,241 INFO L460 AbstractCegarLoop]: Interpolant automaton has 28 states. [2018-04-11 10:27:29,241 INFO L276 IsEmpty]: Start isEmpty. Operand 122 states and 123 transitions. [2018-04-11 10:27:29,242 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 112 [2018-04-11 10:27:29,242 INFO L347 BasicCegarLoop]: Found error trace [2018-04-11 10:27:29,242 INFO L355 BasicCegarLoop]: trace histogram [12, 11, 11, 11, 11, 10, 10, 10, 1, 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 10:27:29,242 INFO L408 AbstractCegarLoop]: === Iteration 14 === [mainErr1RequiresViolation, mainErr6AssertViolationMEMORY_FREE, mainErr4AssertViolationMEMORY_FREE, mainErr10AssertViolationMEMORY_FREE, mainErr11AssertViolationMEMORY_FREE, mainErr0RequiresViolation, mainErr12EnsuresViolationMEMORY_LEAK, mainErr3RequiresViolation, mainErr7AssertViolationMEMORY_FREE, mainErr9AssertViolationMEMORY_FREE, mainErr2RequiresViolation, mainErr8AssertViolationMEMORY_FREE, mainErr5AssertViolationMEMORY_FREE, __U_MULTI_f_________true_valid_memsafety_i__fooErr0RequiresViolation, __U_MULTI_f_________true_valid_memsafety_i__fooErr3RequiresViolation, __U_MULTI_f_________true_valid_memsafety_i__fooErr1RequiresViolation, __U_MULTI_f_________true_valid_memsafety_i__fooErr2RequiresViolation]=== [2018-04-11 10:27:29,242 INFO L82 PathProgramCache]: Analyzing trace with hash -863664479, now seen corresponding path program 4 times [2018-04-11 10:27:29,242 INFO L213 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-04-11 10:27:29,242 INFO L68 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-04-11 10:27:29,243 INFO L119 rtionOrderModulation]: Craig nested/tree interpolation forces the following order [2018-04-11 10:27:29,243 INFO L101 rtionOrderModulation]: Changing assertion order to NOT_INCREMENTALLY [2018-04-11 10:27:29,243 INFO L119 rtionOrderModulation]: Craig nested/tree interpolation forces the following order [2018-04-11 10:27:29,258 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-04-11 10:27:29,259 WARN L137 erpolLogProxyWrapper]: Using partial proofs (cut at CNF-level). Set option :produce-proofs to true to get complete proofs. [2018-04-11 10:27:29,408 INFO L134 CoverageAnalysis]: Checked inductivity of 442 backedges. 0 proven. 242 refuted. 0 times theorem prover too weak. 200 trivial. 0 not checked. [2018-04-11 10:27:29,408 INFO L308 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2018-04-11 10:27:29,408 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 10 with z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 10 with z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:12000 [2018-04-11 10:27:29,414 INFO L103 rtionOrderModulation]: Keeping assertion order TERMS_WITH_SMALL_CONSTANTS_FIRST [2018-04-11 10:27:29,440 INFO L242 tOrderPrioritization]: Assert order TERMS_WITH_SMALL_CONSTANTS_FIRST issued 0 check-sat command(s) [2018-04-11 10:27:29,440 INFO L243 tOrderPrioritization]: Conjunction of SSA is unsat [2018-04-11 10:27:29,445 INFO L270 TraceCheckSpWp]: Computing forward predicates... [2018-04-11 10:27:29,456 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 10:27:29,456 INFO L267 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2018-04-11 10:27:29,457 INFO L267 ElimStorePlain]: Start of recursive call 1: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-04-11 10:27:29,457 INFO L202 ElimStorePlain]: Needed 2 recursive calls to eliminate 1 variables, input treesize:6, output treesize:5 [2018-04-11 10:27:29,472 INFO L700 Elim1Store]: detected not equals via solver [2018-04-11 10:27:29,472 INFO L700 Elim1Store]: detected not equals via solver [2018-04-11 10:27:29,473 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 10:27:29,473 INFO L267 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2018-04-11 10:27:29,475 INFO L267 ElimStorePlain]: Start of recursive call 1: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-04-11 10:27:29,475 INFO L202 ElimStorePlain]: Needed 2 recursive calls to eliminate 1 variables, input treesize:14, output treesize:8 [2018-04-11 10:27:29,498 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 11 treesize of output 8 [2018-04-11 10:27:29,499 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 10:27:29,499 INFO L267 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 1 xjuncts. [2018-04-11 10:27:29,513 INFO L267 ElimStorePlain]: Start of recursive call 2: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-04-11 10:27:29,516 INFO L267 ElimStorePlain]: Start of recursive call 1: 1 dim-2 vars, End of recursive call: and 1 xjuncts. [2018-04-11 10:27:29,517 INFO L202 ElimStorePlain]: Needed 3 recursive calls to eliminate 1 variables, input treesize:19, output treesize:15 [2018-04-11 10:27:29,529 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 7 treesize of output 5 [2018-04-11 10:27:29,530 INFO L267 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2018-04-11 10:27:29,533 INFO L267 ElimStorePlain]: Start of recursive call 1: 1 dim-2 vars, End of recursive call: and 1 xjuncts. [2018-04-11 10:27:29,533 INFO L202 ElimStorePlain]: Needed 2 recursive calls to eliminate 1 variables, input treesize:18, output treesize:11 Received shutdown request... Cannot interrupt operation gracefully because timeout expired. Forcing shutdown