java -Xmx6000000000 -jar ./plugins/org.eclipse.equinox.launcher_1.3.100.v20150511-1540.jar -data ./data --generate-csv --csv-dir ../../../releaseScripts/default/UAutomizer-linux/csv --cacsl2boogietranslator.bitprecise.bitfields false -tc ../../../trunk/examples/toolchains/AutomizerC.xml -s ../../../trunk/examples/settings/cade18-smtinterpol/svcomp-DerefFreeMemtrack-32bit-Automizer_Camel.epf -i ../../../trunk/examples/svcomp/array-memsafety/count_down-alloca_true-valid-memsafety_true-termination.i -------------------------------------------------------------------------------- This is Ultimate 0.1.23-666feb3-m [2018-04-11 20:17:10,808 INFO L170 SettingsManager]: Resetting all preferences to default values... [2018-04-11 20:17:10,810 INFO L174 SettingsManager]: Resetting UltimateCore preferences to default values [2018-04-11 20:17:10,823 INFO L177 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2018-04-11 20:17:10,824 INFO L174 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2018-04-11 20:17:10,824 INFO L174 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2018-04-11 20:17:10,825 INFO L174 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2018-04-11 20:17:10,827 INFO L174 SettingsManager]: Resetting LassoRanker preferences to default values [2018-04-11 20:17:10,828 INFO L174 SettingsManager]: Resetting Reaching Definitions preferences to default values [2018-04-11 20:17:10,829 INFO L174 SettingsManager]: Resetting SyntaxChecker preferences to default values [2018-04-11 20:17:10,830 INFO L177 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2018-04-11 20:17:10,830 INFO L174 SettingsManager]: Resetting LTL2Aut preferences to default values [2018-04-11 20:17:10,831 INFO L174 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2018-04-11 20:17:10,832 INFO L174 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2018-04-11 20:17:10,833 INFO L174 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2018-04-11 20:17:10,834 INFO L174 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2018-04-11 20:17:10,836 INFO L174 SettingsManager]: Resetting CodeCheck preferences to default values [2018-04-11 20:17:10,837 INFO L174 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2018-04-11 20:17:10,838 INFO L174 SettingsManager]: Resetting RCFGBuilder preferences to default values [2018-04-11 20:17:10,839 INFO L174 SettingsManager]: Resetting TraceAbstraction preferences to default values [2018-04-11 20:17:10,841 INFO L177 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... 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[2018-04-11 20:17:10,845 INFO L98 SettingsManager]: Beginning loading settings from /home/ultimate/work/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/settings/cade18-smtinterpol/svcomp-DerefFreeMemtrack-32bit-Automizer_Camel.epf [2018-04-11 20:17:10,867 INFO L110 SettingsManager]: Loading preferences was successful [2018-04-11 20:17:10,868 INFO L112 SettingsManager]: Preferences different from defaults after loading the file: [2018-04-11 20:17:10,868 INFO L131 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2018-04-11 20:17:10,869 INFO L133 SettingsManager]: * Create parallel compositions if possible=false [2018-04-11 20:17:10,869 INFO L133 SettingsManager]: * Use SBE=true [2018-04-11 20:17:10,869 INFO L131 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2018-04-11 20:17:10,869 INFO L133 SettingsManager]: * sizeof long=4 [2018-04-11 20:17:10,869 INFO L133 SettingsManager]: * Check unreachability of error function in SV-COMP mode=false [2018-04-11 20:17:10,869 INFO L133 SettingsManager]: * Overapproximate operations on floating types=true [2018-04-11 20:17:10,869 INFO L133 SettingsManager]: * sizeof POINTER=4 [2018-04-11 20:17:10,870 INFO L133 SettingsManager]: * Check division by zero=IGNORE [2018-04-11 20:17:10,870 INFO L133 SettingsManager]: * Check for the main procedure if all allocated memory was freed=true [2018-04-11 20:17:10,870 INFO L133 SettingsManager]: * Bitprecise bitfields=true [2018-04-11 20:17:10,870 INFO L133 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2018-04-11 20:17:10,870 INFO L133 SettingsManager]: * sizeof long double=12 [2018-04-11 20:17:10,870 INFO L131 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2018-04-11 20:17:10,871 INFO L133 SettingsManager]: * Size of a code block=SequenceOfStatements [2018-04-11 20:17:10,871 INFO L133 SettingsManager]: * To the following directory=./dump/ [2018-04-11 20:17:10,871 INFO L133 SettingsManager]: * SMT solver=External_DefaultMode [2018-04-11 20:17:10,871 INFO L133 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2018-04-11 20:17:10,871 INFO L131 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2018-04-11 20:17:10,871 INFO L133 SettingsManager]: * Interpolant automaton=TWOTRACK [2018-04-11 20:17:10,871 INFO L133 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2018-04-11 20:17:10,872 INFO L133 SettingsManager]: * Trace refinement strategy=CAMEL Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Bitprecise bitfields -> false [2018-04-11 20:17:10,900 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2018-04-11 20:17:10,912 INFO L266 ainManager$Toolchain]: [Toolchain 1]: Parser(s) successfully (re)initialized [2018-04-11 20:17:10,917 INFO L222 ainManager$Toolchain]: [Toolchain 1]: Toolchain data selected. [2018-04-11 20:17:10,918 INFO L271 PluginConnector]: Initializing CDTParser... [2018-04-11 20:17:10,920 INFO L276 PluginConnector]: CDTParser initialized [2018-04-11 20:17:10,921 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /home/ultimate/work/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/array-memsafety/count_down-alloca_true-valid-memsafety_true-termination.i [2018-04-11 20:17:11,210 INFO L225 CDTParser]: Created temporary CDT project at /home/ultimate/work/ultimate/releaseScripts/default/UAutomizer-linux/data/FLAG1c462396f [2018-04-11 20:17:11,336 INFO L287 CDTParser]: IsIndexed: true [2018-04-11 20:17:11,336 INFO L288 CDTParser]: Found 1 translation units. [2018-04-11 20:17:11,336 INFO L168 CDTParser]: Scanning count_down-alloca_true-valid-memsafety_true-termination.i [2018-04-11 20:17:11,343 INFO L210 ultiparseSymbolTable]: Include resolver: [2018-04-11 20:17:11,344 INFO L215 ultiparseSymbolTable]: [2018-04-11 20:17:11,344 INFO L218 ultiparseSymbolTable]: Function table: [2018-04-11 20:17:11,344 INFO L221 ultiparseSymbolTable]: Function definition of __U_MULTI_fcount_down_alloca_true_valid_memsafety_true_termination_i____bswap_64 ('__bswap_64') in count_down-alloca_true-valid-memsafety_true-termination.i [2018-04-11 20:17:11,344 INFO L221 ultiparseSymbolTable]: Function definition of __U_MULTI_fcount_down_alloca_true_valid_memsafety_true_termination_i____bswap_32 ('__bswap_32') in count_down-alloca_true-valid-memsafety_true-termination.i [2018-04-11 20:17:11,344 INFO L221 ultiparseSymbolTable]: Function definition of null ('main') in count_down-alloca_true-valid-memsafety_true-termination.i [2018-04-11 20:17:11,344 INFO L227 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L230 ultiparseSymbolTable]: Global variable declaration of __U_MULTI_fcount_down_alloca_true_valid_memsafety_true_termination_i____int32_t in count_down-alloca_true-valid-memsafety_true-termination.i [2018-04-11 20:17:11,344 INFO L230 ultiparseSymbolTable]: Global variable declaration of __U_MULTI_fcount_down_alloca_true_valid_memsafety_true_termination_i__div_t in count_down-alloca_true-valid-memsafety_true-termination.i [2018-04-11 20:17:11,344 INFO L230 ultiparseSymbolTable]: Global variable declaration of __U_MULTI_fcount_down_alloca_true_valid_memsafety_true_termination_i__pthread_rwlock_t in count_down-alloca_true-valid-memsafety_true-termination.i [2018-04-11 20:17:11,345 INFO L230 ultiparseSymbolTable]: Global variable declaration of __U_MULTI_fcount_down_alloca_true_valid_memsafety_true_termination_i__fd_set in count_down-alloca_true-valid-memsafety_true-termination.i [2018-04-11 20:17:11,345 INFO L230 ultiparseSymbolTable]: Global variable declaration of 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count_down-alloca_true-valid-memsafety_true-termination.i [2018-04-11 20:17:11,345 INFO L230 ultiparseSymbolTable]: Global variable declaration of __U_MULTI_fcount_down_alloca_true_valid_memsafety_true_termination_i__key_t in count_down-alloca_true-valid-memsafety_true-termination.i [2018-04-11 20:17:11,345 INFO L230 ultiparseSymbolTable]: Global variable declaration of __U_MULTI_fcount_down_alloca_true_valid_memsafety_true_termination_i____time_t in count_down-alloca_true-valid-memsafety_true-termination.i [2018-04-11 20:17:11,345 INFO L230 ultiparseSymbolTable]: Global variable declaration of __U_MULTI_fcount_down_alloca_true_valid_memsafety_true_termination_i____timer_t in count_down-alloca_true-valid-memsafety_true-termination.i [2018-04-11 20:17:11,345 INFO L230 ultiparseSymbolTable]: Global variable declaration of __U_MULTI_fcount_down_alloca_true_valid_memsafety_true_termination_i__u_quad_t in count_down-alloca_true-valid-memsafety_true-termination.i [2018-04-11 20:17:11,345 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count_down-alloca_true-valid-memsafety_true-termination.i [2018-04-11 20:17:11,346 INFO L230 ultiparseSymbolTable]: Global variable declaration of __U_MULTI_fcount_down_alloca_true_valid_memsafety_true_termination_i____fsfilcnt_t in count_down-alloca_true-valid-memsafety_true-termination.i [2018-04-11 20:17:11,346 INFO L230 ultiparseSymbolTable]: Global variable declaration of __U_MULTI_fcount_down_alloca_true_valid_memsafety_true_termination_i____qaddr_t in count_down-alloca_true-valid-memsafety_true-termination.i [2018-04-11 20:17:11,346 INFO L230 ultiparseSymbolTable]: Global variable declaration of __U_MULTI_fcount_down_alloca_true_valid_memsafety_true_termination_i__pthread_mutexattr_t in count_down-alloca_true-valid-memsafety_true-termination.i [2018-04-11 20:17:11,346 INFO L230 ultiparseSymbolTable]: Global variable declaration of __U_MULTI_fcount_down_alloca_true_valid_memsafety_true_termination_i____nlink_t in count_down-alloca_true-valid-memsafety_true-termination.i [2018-04-11 20:17:11,346 INFO L230 ultiparseSymbolTable]: Global variable declaration of __U_MULTI_fcount_down_alloca_true_valid_memsafety_true_termination_i__pthread_rwlockattr_t in count_down-alloca_true-valid-memsafety_true-termination.i [2018-04-11 20:17:11,346 INFO L230 ultiparseSymbolTable]: Global variable declaration of __U_MULTI_fcount_down_alloca_true_valid_memsafety_true_termination_i____blkcnt64_t in count_down-alloca_true-valid-memsafety_true-termination.i [2018-04-11 20:17:11,346 INFO L230 ultiparseSymbolTable]: Global variable declaration of __U_MULTI_fcount_down_alloca_true_valid_memsafety_true_termination_i__ldiv_t in count_down-alloca_true-valid-memsafety_true-termination.i [2018-04-11 20:17:11,346 INFO L230 ultiparseSymbolTable]: Global variable declaration of __U_MULTI_fcount_down_alloca_true_valid_memsafety_true_termination_i__int32_t in count_down-alloca_true-valid-memsafety_true-termination.i [2018-04-11 20:17:11,347 INFO L230 ultiparseSymbolTable]: Global variable declaration of __U_MULTI_fcount_down_alloca_true_valid_memsafety_true_termination_i__u_int32_t in count_down-alloca_true-valid-memsafety_true-termination.i [2018-04-11 20:17:11,347 INFO L230 ultiparseSymbolTable]: Global variable declaration of __U_MULTI_fcount_down_alloca_true_valid_memsafety_true_termination_i__ino_t in count_down-alloca_true-valid-memsafety_true-termination.i [2018-04-11 20:17:11,347 INFO L230 ultiparseSymbolTable]: Global variable declaration of __U_MULTI_fcount_down_alloca_true_valid_memsafety_true_termination_i__fsfilcnt_t in count_down-alloca_true-valid-memsafety_true-termination.i [2018-04-11 20:17:11,347 INFO L230 ultiparseSymbolTable]: Global variable declaration of __U_MULTI_fcount_down_alloca_true_valid_memsafety_true_termination_i____fsfilcnt64_t in count_down-alloca_true-valid-memsafety_true-termination.i [2018-04-11 20:17:11,347 INFO L230 ultiparseSymbolTable]: Global variable declaration of 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20:17:11,348 INFO L230 ultiparseSymbolTable]: Global variable declaration of __U_MULTI_fcount_down_alloca_true_valid_memsafety_true_termination_i__uint in count_down-alloca_true-valid-memsafety_true-termination.i [2018-04-11 20:17:11,348 INFO L230 ultiparseSymbolTable]: Global variable declaration of __U_MULTI_fcount_down_alloca_true_valid_memsafety_true_termination_i__id_t in count_down-alloca_true-valid-memsafety_true-termination.i [2018-04-11 20:17:11,348 INFO L230 ultiparseSymbolTable]: Global variable declaration of __U_MULTI_fcount_down_alloca_true_valid_memsafety_true_termination_i____ino64_t in count_down-alloca_true-valid-memsafety_true-termination.i [2018-04-11 20:17:11,348 INFO L230 ultiparseSymbolTable]: Global variable declaration of __U_MULTI_fcount_down_alloca_true_valid_memsafety_true_termination_i____uint8_t in count_down-alloca_true-valid-memsafety_true-termination.i [2018-04-11 20:17:11,349 INFO L230 ultiparseSymbolTable]: Global variable declaration of __U_MULTI_fcount_down_alloca_true_valid_memsafety_true_termination_i____key_t in count_down-alloca_true-valid-memsafety_true-termination.i [2018-04-11 20:17:11,349 INFO L230 ultiparseSymbolTable]: Global variable declaration of __U_MULTI_fcount_down_alloca_true_valid_memsafety_true_termination_i____u_int in count_down-alloca_true-valid-memsafety_true-termination.i [2018-04-11 20:17:11,349 INFO L230 ultiparseSymbolTable]: Global variable declaration of __U_MULTI_fcount_down_alloca_true_valid_memsafety_true_termination_i__u_int8_t in count_down-alloca_true-valid-memsafety_true-termination.i [2018-04-11 20:17:11,349 INFO L230 ultiparseSymbolTable]: Global variable declaration of __U_MULTI_fcount_down_alloca_true_valid_memsafety_true_termination_i__u_int16_t in count_down-alloca_true-valid-memsafety_true-termination.i [2018-04-11 20:17:11,349 INFO L230 ultiparseSymbolTable]: Global variable declaration of __U_MULTI_fcount_down_alloca_true_valid_memsafety_true_termination_i__pthread_condattr_t in count_down-alloca_true-valid-memsafety_true-termination.i [2018-04-11 20:17:11,349 INFO L230 ultiparseSymbolTable]: Global variable declaration of __U_MULTI_fcount_down_alloca_true_valid_memsafety_true_termination_i__dev_t in count_down-alloca_true-valid-memsafety_true-termination.i [2018-04-11 20:17:11,349 INFO L230 ultiparseSymbolTable]: Global variable declaration of __U_MULTI_fcount_down_alloca_true_valid_memsafety_true_termination_i____clock_t in count_down-alloca_true-valid-memsafety_true-termination.i [2018-04-11 20:17:11,349 INFO L230 ultiparseSymbolTable]: Global variable declaration of __U_MULTI_fcount_down_alloca_true_valid_memsafety_true_termination_i__wchar_t in count_down-alloca_true-valid-memsafety_true-termination.i [2018-04-11 20:17:11,349 INFO L230 ultiparseSymbolTable]: Global variable declaration of __U_MULTI_fcount_down_alloca_true_valid_memsafety_true_termination_i____blkcnt_t in count_down-alloca_true-valid-memsafety_true-termination.i [2018-04-11 20:17:11,349 INFO L230 ultiparseSymbolTable]: Global variable declaration of __U_MULTI_fcount_down_alloca_true_valid_memsafety_true_termination_i__pthread_cond_t in count_down-alloca_true-valid-memsafety_true-termination.i [2018-04-11 20:17:11,349 INFO L230 ultiparseSymbolTable]: Global variable declaration of __U_MULTI_fcount_down_alloca_true_valid_memsafety_true_termination_i____loff_t in count_down-alloca_true-valid-memsafety_true-termination.i [2018-04-11 20:17:11,349 INFO L230 ultiparseSymbolTable]: Global variable declaration of __U_MULTI_fcount_down_alloca_true_valid_memsafety_true_termination_i__fsid_t in count_down-alloca_true-valid-memsafety_true-termination.i [2018-04-11 20:17:11,350 INFO L230 ultiparseSymbolTable]: Global variable declaration of __U_MULTI_fcount_down_alloca_true_valid_memsafety_true_termination_i__quad_t in count_down-alloca_true-valid-memsafety_true-termination.i [2018-04-11 20:17:11,350 INFO L230 ultiparseSymbolTable]: Global variable declaration of __U_MULTI_fcount_down_alloca_true_valid_memsafety_true_termination_i____useconds_t in count_down-alloca_true-valid-memsafety_true-termination.i [2018-04-11 20:17:11,350 INFO L230 ultiparseSymbolTable]: Global variable declaration of __U_MULTI_fcount_down_alloca_true_valid_memsafety_true_termination_i____fd_mask in count_down-alloca_true-valid-memsafety_true-termination.i [2018-04-11 20:17:11,350 INFO L230 ultiparseSymbolTable]: Global variable declaration of __U_MULTI_fcount_down_alloca_true_valid_memsafety_true_termination_i__clockid_t in count_down-alloca_true-valid-memsafety_true-termination.i [2018-04-11 20:17:11,350 INFO L230 ultiparseSymbolTable]: Global variable declaration of __U_MULTI_fcount_down_alloca_true_valid_memsafety_true_termination_i____clockid_t in count_down-alloca_true-valid-memsafety_true-termination.i [2018-04-11 20:17:11,350 INFO L230 ultiparseSymbolTable]: Global variable declaration of __U_MULTI_fcount_down_alloca_true_valid_memsafety_true_termination_i__suseconds_t in count_down-alloca_true-valid-memsafety_true-termination.i [2018-04-11 20:17:11,350 INFO L230 ultiparseSymbolTable]: Global variable declaration of __U_MULTI_fcount_down_alloca_true_valid_memsafety_true_termination_i____syscall_slong_t in count_down-alloca_true-valid-memsafety_true-termination.i [2018-04-11 20:17:11,350 INFO L230 ultiparseSymbolTable]: Global variable declaration of __U_MULTI_fcount_down_alloca_true_valid_memsafety_true_termination_i____sig_atomic_t in count_down-alloca_true-valid-memsafety_true-termination.i [2018-04-11 20:17:11,350 INFO L230 ultiparseSymbolTable]: Global variable declaration of __U_MULTI_fcount_down_alloca_true_valid_memsafety_true_termination_i__pthread_attr_t in count_down-alloca_true-valid-memsafety_true-termination.i [2018-04-11 20:17:11,350 INFO L230 ultiparseSymbolTable]: Global variable declaration of __U_MULTI_fcount_down_alloca_true_valid_memsafety_true_termination_i__pthread_barrier_t in count_down-alloca_true-valid-memsafety_true-termination.i [2018-04-11 20:17:11,350 INFO L230 ultiparseSymbolTable]: Global variable declaration of __U_MULTI_fcount_down_alloca_true_valid_memsafety_true_termination_i____WAIT_STATUS in count_down-alloca_true-valid-memsafety_true-termination.i [2018-04-11 20:17:11,351 INFO L230 ultiparseSymbolTable]: Global variable declaration of __U_MULTI_fcount_down_alloca_true_valid_memsafety_true_termination_i____gid_t in count_down-alloca_true-valid-memsafety_true-termination.i [2018-04-11 20:17:11,351 INFO L230 ultiparseSymbolTable]: Global variable declaration of __U_MULTI_fcount_down_alloca_true_valid_memsafety_true_termination_i____int64_t in count_down-alloca_true-valid-memsafety_true-termination.i [2018-04-11 20:17:11,351 INFO L230 ultiparseSymbolTable]: Global variable declaration of __U_MULTI_fcount_down_alloca_true_valid_memsafety_true_termination_i__ushort in count_down-alloca_true-valid-memsafety_true-termination.i [2018-04-11 20:17:11,351 INFO L230 ultiparseSymbolTable]: Global variable declaration of __U_MULTI_fcount_down_alloca_true_valid_memsafety_true_termination_i__pthread_t in count_down-alloca_true-valid-memsafety_true-termination.i [2018-04-11 20:17:11,351 INFO L230 ultiparseSymbolTable]: Global variable declaration of __U_MULTI_fcount_down_alloca_true_valid_memsafety_true_termination_i____u_quad_t in count_down-alloca_true-valid-memsafety_true-termination.i [2018-04-11 20:17:11,351 INFO L230 ultiparseSymbolTable]: Global variable declaration of __U_MULTI_fcount_down_alloca_true_valid_memsafety_true_termination_i____quad_t in count_down-alloca_true-valid-memsafety_true-termination.i [2018-04-11 20:17:11,351 INFO L230 ultiparseSymbolTable]: Global variable declaration of __U_MULTI_fcount_down_alloca_true_valid_memsafety_true_termination_i____fsblkcnt64_t in count_down-alloca_true-valid-memsafety_true-termination.i [2018-04-11 20:17:11,351 INFO L230 ultiparseSymbolTable]: Global variable declaration of __U_MULTI_fcount_down_alloca_true_valid_memsafety_true_termination_i__int64_t in count_down-alloca_true-valid-memsafety_true-termination.i [2018-04-11 20:17:11,351 INFO L230 ultiparseSymbolTable]: Global variable declaration of __U_MULTI_fcount_down_alloca_true_valid_memsafety_true_termination_i____uint16_t in count_down-alloca_true-valid-memsafety_true-termination.i [2018-04-11 20:17:11,351 INFO L230 ultiparseSymbolTable]: Global variable declaration of __U_MULTI_fcount_down_alloca_true_valid_memsafety_true_termination_i__loff_t in count_down-alloca_true-valid-memsafety_true-termination.i [2018-04-11 20:17:11,351 INFO L230 ultiparseSymbolTable]: Global variable declaration of __U_MULTI_fcount_down_alloca_true_valid_memsafety_true_termination_i____daddr_t in count_down-alloca_true-valid-memsafety_true-termination.i [2018-04-11 20:17:11,351 INFO L230 ultiparseSymbolTable]: Global variable declaration of __U_MULTI_fcount_down_alloca_true_valid_memsafety_true_termination_i____pid_t in count_down-alloca_true-valid-memsafety_true-termination.i [2018-04-11 20:17:11,351 INFO L230 ultiparseSymbolTable]: Global variable declaration of __U_MULTI_fcount_down_alloca_true_valid_memsafety_true_termination_i____int16_t in count_down-alloca_true-valid-memsafety_true-termination.i [2018-04-11 20:17:11,351 INFO L230 ultiparseSymbolTable]: Global variable declaration of __U_MULTI_fcount_down_alloca_true_valid_memsafety_true_termination_i__u_short in count_down-alloca_true-valid-memsafety_true-termination.i [2018-04-11 20:17:11,352 INFO L230 ultiparseSymbolTable]: Global variable declaration of __U_MULTI_fcount_down_alloca_true_valid_memsafety_true_termination_i__u_char in count_down-alloca_true-valid-memsafety_true-termination.i [2018-04-11 20:17:11,352 INFO L230 ultiparseSymbolTable]: Global variable declaration of __U_MULTI_fcount_down_alloca_true_valid_memsafety_true_termination_i__off_t in count_down-alloca_true-valid-memsafety_true-termination.i [2018-04-11 20:17:11,352 INFO L230 ultiparseSymbolTable]: Global variable declaration of __U_MULTI_fcount_down_alloca_true_valid_memsafety_true_termination_i__ulong in count_down-alloca_true-valid-memsafety_true-termination.i [2018-04-11 20:17:11,352 INFO L230 ultiparseSymbolTable]: Global variable declaration of __U_MULTI_fcount_down_alloca_true_valid_memsafety_true_termination_i__gid_t in count_down-alloca_true-valid-memsafety_true-termination.i [2018-04-11 20:17:11,352 INFO L230 ultiparseSymbolTable]: Global variable declaration of __U_MULTI_fcount_down_alloca_true_valid_memsafety_true_termination_i____u_long in count_down-alloca_true-valid-memsafety_true-termination.i [2018-04-11 20:17:11,352 INFO L230 ultiparseSymbolTable]: Global variable declaration of __U_MULTI_fcount_down_alloca_true_valid_memsafety_true_termination_i____socklen_t in count_down-alloca_true-valid-memsafety_true-termination.i [2018-04-11 20:17:11,352 INFO L230 ultiparseSymbolTable]: Global variable declaration of __U_MULTI_fcount_down_alloca_true_valid_memsafety_true_termination_i__clock_t in count_down-alloca_true-valid-memsafety_true-termination.i [2018-04-11 20:17:11,352 INFO L230 ultiparseSymbolTable]: Global variable declaration of __U_MULTI_fcount_down_alloca_true_valid_memsafety_true_termination_i__pid_t in count_down-alloca_true-valid-memsafety_true-termination.i [2018-04-11 20:17:11,352 INFO L230 ultiparseSymbolTable]: Global variable declaration of __U_MULTI_fcount_down_alloca_true_valid_memsafety_true_termination_i__blkcnt_t in count_down-alloca_true-valid-memsafety_true-termination.i [2018-04-11 20:17:11,352 INFO L230 ultiparseSymbolTable]: Global variable declaration of __U_MULTI_fcount_down_alloca_true_valid_memsafety_true_termination_i__daddr_t in count_down-alloca_true-valid-memsafety_true-termination.i [2018-04-11 20:17:11,352 INFO L230 ultiparseSymbolTable]: Global variable declaration of __U_MULTI_fcount_down_alloca_true_valid_memsafety_true_termination_i____int8_t in count_down-alloca_true-valid-memsafety_true-termination.i [2018-04-11 20:17:11,352 INFO L230 ultiparseSymbolTable]: Global variable declaration of __U_MULTI_fcount_down_alloca_true_valid_memsafety_true_termination_i____pthread_list_t in count_down-alloca_true-valid-memsafety_true-termination.i [2018-04-11 20:17:11,352 INFO L230 ultiparseSymbolTable]: Global variable declaration of __U_MULTI_fcount_down_alloca_true_valid_memsafety_true_termination_i____caddr_t in count_down-alloca_true-valid-memsafety_true-termination.i [2018-04-11 20:17:11,352 INFO L230 ultiparseSymbolTable]: Global variable declaration of __U_MULTI_fcount_down_alloca_true_valid_memsafety_true_termination_i__size_t in count_down-alloca_true-valid-memsafety_true-termination.i [2018-04-11 20:17:11,352 INFO L230 ultiparseSymbolTable]: Global variable declaration of __U_MULTI_fcount_down_alloca_true_valid_memsafety_true_termination_i__pthread_once_t in count_down-alloca_true-valid-memsafety_true-termination.i [2018-04-11 20:17:11,352 INFO L230 ultiparseSymbolTable]: Global variable declaration of __U_MULTI_fcount_down_alloca_true_valid_memsafety_true_termination_i__u_long in count_down-alloca_true-valid-memsafety_true-termination.i [2018-04-11 20:17:11,352 INFO L230 ultiparseSymbolTable]: Global variable declaration of __U_MULTI_fcount_down_alloca_true_valid_memsafety_true_termination_i____intptr_t in count_down-alloca_true-valid-memsafety_true-termination.i [2018-04-11 20:17:11,352 INFO L230 ultiparseSymbolTable]: Global variable declaration of __U_MULTI_fcount_down_alloca_true_valid_memsafety_true_termination_i____fsid_t in count_down-alloca_true-valid-memsafety_true-termination.i [2018-04-11 20:17:11,352 INFO L230 ultiparseSymbolTable]: Global variable declaration of __U_MULTI_fcount_down_alloca_true_valid_memsafety_true_termination_i____mode_t in count_down-alloca_true-valid-memsafety_true-termination.i [2018-04-11 20:17:11,352 INFO L230 ultiparseSymbolTable]: Global variable declaration of __U_MULTI_fcount_down_alloca_true_valid_memsafety_true_termination_i__blksize_t in count_down-alloca_true-valid-memsafety_true-termination.i [2018-04-11 20:17:11,352 INFO L230 ultiparseSymbolTable]: Global variable declaration of __U_MULTI_fcount_down_alloca_true_valid_memsafety_true_termination_i__pthread_spinlock_t in count_down-alloca_true-valid-memsafety_true-termination.i [2018-04-11 20:17:11,353 INFO L230 ultiparseSymbolTable]: Global variable declaration of __U_MULTI_fcount_down_alloca_true_valid_memsafety_true_termination_i__caddr_t in count_down-alloca_true-valid-memsafety_true-termination.i [2018-04-11 20:17:11,353 INFO L230 ultiparseSymbolTable]: Global variable declaration of __U_MULTI_fcount_down_alloca_true_valid_memsafety_true_termination_i____ino_t in count_down-alloca_true-valid-memsafety_true-termination.i [2018-04-11 20:17:11,353 INFO L230 ultiparseSymbolTable]: Global variable declaration of __U_MULTI_fcount_down_alloca_true_valid_memsafety_true_termination_i____sigset_t in count_down-alloca_true-valid-memsafety_true-termination.i [2018-04-11 20:17:11,365 INFO L330 CDTParser]: Deleted temporary CDT project at /home/ultimate/work/ultimate/releaseScripts/default/UAutomizer-linux/data/FLAG1c462396f [2018-04-11 20:17:11,368 INFO L304 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2018-04-11 20:17:11,369 INFO L131 ToolchainWalker]: Walking toolchain with 4 elements. [2018-04-11 20:17:11,369 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2018-04-11 20:17:11,369 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2018-04-11 20:17:11,373 INFO L276 PluginConnector]: CACSL2BoogieTranslator initialized [2018-04-11 20:17:11,374 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 11.04 08:17:11" (1/1) ... [2018-04-11 20:17:11,376 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@5f98f106 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.04 08:17:11, skipping insertion in model container [2018-04-11 20:17:11,376 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 11.04 08:17:11" (1/1) ... [2018-04-11 20:17:11,386 INFO L167 Dispatcher]: Using SV-COMP mode [2018-04-11 20:17:11,407 INFO L167 Dispatcher]: Using SV-COMP mode [2018-04-11 20:17:11,533 INFO L175 PostProcessor]: Settings: Checked method=main [2018-04-11 20:17:11,566 INFO L175 PostProcessor]: Settings: Checked method=main [2018-04-11 20:17:11,572 INFO L100 SccComputation]: Graph consists of 0 InCaSumBalls and 111 non ball SCCs. Number of states in SCCs 111. [2018-04-11 20:17:11,608 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.04 08:17:11 WrapperNode [2018-04-11 20:17:11,608 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2018-04-11 20:17:11,609 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2018-04-11 20:17:11,609 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2018-04-11 20:17:11,609 INFO L276 PluginConnector]: Boogie Preprocessor initialized [2018-04-11 20:17:11,622 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.04 08:17:11" (1/1) ... [2018-04-11 20:17:11,622 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.04 08:17:11" (1/1) ... [2018-04-11 20:17:11,643 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.04 08:17:11" (1/1) ... [2018-04-11 20:17:11,643 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.04 08:17:11" (1/1) ... [2018-04-11 20:17:11,650 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.04 08:17:11" (1/1) ... [2018-04-11 20:17:11,656 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.04 08:17:11" (1/1) ... [2018-04-11 20:17:11,658 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.04 08:17:11" (1/1) ... [2018-04-11 20:17:11,662 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2018-04-11 20:17:11,662 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2018-04-11 20:17:11,662 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2018-04-11 20:17:11,662 INFO L276 PluginConnector]: RCFGBuilder initialized [2018-04-11 20:17:11,663 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.04 08:17:11" (1/1) ... No working directory specified, using /home/ultimate/work/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2018-04-11 20:17:11,780 INFO L136 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2018-04-11 20:17:11,780 INFO L136 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2018-04-11 20:17:11,780 INFO L136 BoogieDeclarations]: Found implementation of procedure __U_MULTI_fcount_down_alloca_true_valid_memsafety_true_termination_i____bswap_32 [2018-04-11 20:17:11,780 INFO L136 BoogieDeclarations]: Found implementation of procedure __U_MULTI_fcount_down_alloca_true_valid_memsafety_true_termination_i____bswap_64 [2018-04-11 20:17:11,780 INFO L136 BoogieDeclarations]: Found implementation of procedure main [2018-04-11 20:17:11,780 INFO L128 BoogieDeclarations]: Found specification of procedure __U_MULTI_fcount_down_alloca_true_valid_memsafety_true_termination_i____bswap_32 [2018-04-11 20:17:11,780 INFO L128 BoogieDeclarations]: Found specification of procedure __U_MULTI_fcount_down_alloca_true_valid_memsafety_true_termination_i____bswap_64 [2018-04-11 20:17:11,780 INFO L128 BoogieDeclarations]: Found specification of procedure __ctype_get_mb_cur_max [2018-04-11 20:17:11,781 INFO L128 BoogieDeclarations]: Found specification of procedure atof [2018-04-11 20:17:11,781 INFO L128 BoogieDeclarations]: Found specification of procedure atoi [2018-04-11 20:17:11,781 INFO L128 BoogieDeclarations]: Found specification of procedure atol [2018-04-11 20:17:11,781 INFO L128 BoogieDeclarations]: Found specification of procedure atoll [2018-04-11 20:17:11,781 INFO L128 BoogieDeclarations]: Found specification of procedure strtod [2018-04-11 20:17:11,781 INFO L128 BoogieDeclarations]: Found specification of procedure strtof [2018-04-11 20:17:11,781 INFO L128 BoogieDeclarations]: Found specification of procedure strtold [2018-04-11 20:17:11,781 INFO L128 BoogieDeclarations]: Found specification of procedure strtol [2018-04-11 20:17:11,781 INFO L128 BoogieDeclarations]: Found specification of procedure strtoul [2018-04-11 20:17:11,781 INFO L128 BoogieDeclarations]: Found specification of procedure strtoq [2018-04-11 20:17:11,781 INFO L128 BoogieDeclarations]: Found specification of procedure strtouq [2018-04-11 20:17:11,781 INFO L128 BoogieDeclarations]: Found specification of procedure strtoll [2018-04-11 20:17:11,782 INFO L128 BoogieDeclarations]: Found specification of procedure strtoull [2018-04-11 20:17:11,782 INFO L128 BoogieDeclarations]: Found specification of procedure l64a [2018-04-11 20:17:11,782 INFO L128 BoogieDeclarations]: Found specification of procedure a64l [2018-04-11 20:17:11,782 INFO L128 BoogieDeclarations]: Found specification of procedure select [2018-04-11 20:17:11,782 INFO L128 BoogieDeclarations]: Found specification of procedure pselect [2018-04-11 20:17:11,782 INFO L128 BoogieDeclarations]: Found specification of procedure gnu_dev_major [2018-04-11 20:17:11,782 INFO L128 BoogieDeclarations]: Found specification of procedure gnu_dev_minor [2018-04-11 20:17:11,782 INFO L128 BoogieDeclarations]: Found specification of procedure gnu_dev_makedev [2018-04-11 20:17:11,782 INFO L128 BoogieDeclarations]: Found specification of procedure random [2018-04-11 20:17:11,782 INFO L128 BoogieDeclarations]: Found specification of procedure srandom [2018-04-11 20:17:11,783 INFO L128 BoogieDeclarations]: Found specification of procedure initstate [2018-04-11 20:17:11,783 INFO L128 BoogieDeclarations]: Found specification of procedure setstate [2018-04-11 20:17:11,783 INFO L128 BoogieDeclarations]: Found specification of procedure random_r [2018-04-11 20:17:11,783 INFO L128 BoogieDeclarations]: Found specification of procedure srandom_r [2018-04-11 20:17:11,783 INFO L128 BoogieDeclarations]: Found specification of procedure initstate_r [2018-04-11 20:17:11,783 INFO L128 BoogieDeclarations]: Found specification of procedure setstate_r [2018-04-11 20:17:11,783 INFO L128 BoogieDeclarations]: Found specification of procedure rand [2018-04-11 20:17:11,783 INFO L128 BoogieDeclarations]: Found specification of procedure srand [2018-04-11 20:17:11,783 INFO L128 BoogieDeclarations]: Found specification of procedure rand_r [2018-04-11 20:17:11,783 INFO L128 BoogieDeclarations]: Found specification of procedure drand48 [2018-04-11 20:17:11,784 INFO L128 BoogieDeclarations]: Found specification of procedure erand48 [2018-04-11 20:17:11,784 INFO L128 BoogieDeclarations]: Found specification of procedure lrand48 [2018-04-11 20:17:11,784 INFO L128 BoogieDeclarations]: Found specification of procedure nrand48 [2018-04-11 20:17:11,784 INFO L128 BoogieDeclarations]: Found specification of procedure mrand48 [2018-04-11 20:17:11,784 INFO L128 BoogieDeclarations]: Found specification of procedure jrand48 [2018-04-11 20:17:11,784 INFO L128 BoogieDeclarations]: Found specification of procedure srand48 [2018-04-11 20:17:11,784 INFO L128 BoogieDeclarations]: Found specification of procedure seed48 [2018-04-11 20:17:11,784 INFO L128 BoogieDeclarations]: Found specification of procedure lcong48 [2018-04-11 20:17:11,784 INFO L128 BoogieDeclarations]: Found specification of procedure drand48_r [2018-04-11 20:17:11,784 INFO L128 BoogieDeclarations]: Found specification of procedure erand48_r [2018-04-11 20:17:11,785 INFO L128 BoogieDeclarations]: Found specification of procedure lrand48_r [2018-04-11 20:17:11,785 INFO L128 BoogieDeclarations]: Found specification of procedure nrand48_r [2018-04-11 20:17:11,785 INFO L128 BoogieDeclarations]: Found specification of procedure mrand48_r [2018-04-11 20:17:11,785 INFO L128 BoogieDeclarations]: Found specification of procedure jrand48_r [2018-04-11 20:17:11,785 INFO L128 BoogieDeclarations]: Found specification of procedure srand48_r [2018-04-11 20:17:11,785 INFO L128 BoogieDeclarations]: Found specification of procedure seed48_r [2018-04-11 20:17:11,785 INFO L128 BoogieDeclarations]: Found specification of procedure lcong48_r [2018-04-11 20:17:11,785 INFO L128 BoogieDeclarations]: Found specification of procedure malloc [2018-04-11 20:17:11,785 INFO L128 BoogieDeclarations]: Found specification of procedure calloc [2018-04-11 20:17:11,786 INFO L128 BoogieDeclarations]: Found specification of procedure realloc [2018-04-11 20:17:11,786 INFO L128 BoogieDeclarations]: Found specification of procedure free [2018-04-11 20:17:11,786 INFO L128 BoogieDeclarations]: Found specification of procedure cfree [2018-04-11 20:17:11,786 INFO L128 BoogieDeclarations]: Found specification of procedure alloca [2018-04-11 20:17:11,786 INFO L128 BoogieDeclarations]: Found specification of procedure valloc [2018-04-11 20:17:11,786 INFO L128 BoogieDeclarations]: Found specification of procedure posix_memalign [2018-04-11 20:17:11,786 INFO L128 BoogieDeclarations]: Found specification of procedure abort [2018-04-11 20:17:11,786 INFO L128 BoogieDeclarations]: Found specification of procedure atexit [2018-04-11 20:17:11,786 INFO L128 BoogieDeclarations]: Found specification of procedure on_exit [2018-04-11 20:17:11,786 INFO L128 BoogieDeclarations]: Found specification of procedure exit [2018-04-11 20:17:11,786 INFO L128 BoogieDeclarations]: Found specification of procedure _Exit [2018-04-11 20:17:11,787 INFO L128 BoogieDeclarations]: Found specification of procedure getenv [2018-04-11 20:17:11,787 INFO L128 BoogieDeclarations]: Found specification of procedure putenv [2018-04-11 20:17:11,787 INFO L128 BoogieDeclarations]: Found specification of procedure setenv [2018-04-11 20:17:11,787 INFO L128 BoogieDeclarations]: Found specification of procedure unsetenv [2018-04-11 20:17:11,787 INFO L128 BoogieDeclarations]: Found specification of procedure clearenv [2018-04-11 20:17:11,787 INFO L128 BoogieDeclarations]: Found specification of procedure mktemp [2018-04-11 20:17:11,787 INFO L128 BoogieDeclarations]: Found specification of procedure mkstemp [2018-04-11 20:17:11,787 INFO L128 BoogieDeclarations]: Found specification of procedure mkstemps [2018-04-11 20:17:11,787 INFO L128 BoogieDeclarations]: Found specification of procedure mkdtemp [2018-04-11 20:17:11,787 INFO L128 BoogieDeclarations]: Found specification of procedure system [2018-04-11 20:17:11,787 INFO L128 BoogieDeclarations]: Found specification of procedure realpath [2018-04-11 20:17:11,787 INFO L128 BoogieDeclarations]: Found specification of procedure bsearch [2018-04-11 20:17:11,787 INFO L128 BoogieDeclarations]: Found specification of procedure qsort [2018-04-11 20:17:11,787 INFO L128 BoogieDeclarations]: Found specification of procedure abs [2018-04-11 20:17:11,787 INFO L128 BoogieDeclarations]: Found specification of procedure labs [2018-04-11 20:17:11,787 INFO L128 BoogieDeclarations]: Found specification of procedure llabs [2018-04-11 20:17:11,787 INFO L128 BoogieDeclarations]: Found specification of procedure div [2018-04-11 20:17:11,787 INFO L128 BoogieDeclarations]: Found specification of procedure ldiv [2018-04-11 20:17:11,788 INFO L128 BoogieDeclarations]: Found specification of procedure lldiv [2018-04-11 20:17:11,788 INFO L128 BoogieDeclarations]: Found specification of procedure ecvt [2018-04-11 20:17:11,788 INFO L128 BoogieDeclarations]: Found specification of procedure fcvt [2018-04-11 20:17:11,788 INFO L128 BoogieDeclarations]: Found specification of procedure gcvt [2018-04-11 20:17:11,788 INFO L128 BoogieDeclarations]: Found specification of procedure qecvt [2018-04-11 20:17:11,788 INFO L128 BoogieDeclarations]: Found specification of procedure qfcvt [2018-04-11 20:17:11,788 INFO L128 BoogieDeclarations]: Found specification of procedure qgcvt [2018-04-11 20:17:11,788 INFO L128 BoogieDeclarations]: Found specification of procedure ecvt_r [2018-04-11 20:17:11,788 INFO L128 BoogieDeclarations]: Found specification of procedure fcvt_r [2018-04-11 20:17:11,788 INFO L128 BoogieDeclarations]: Found specification of procedure qecvt_r [2018-04-11 20:17:11,788 INFO L128 BoogieDeclarations]: Found specification of procedure qfcvt_r [2018-04-11 20:17:11,788 INFO L128 BoogieDeclarations]: Found specification of procedure mblen [2018-04-11 20:17:11,788 INFO L128 BoogieDeclarations]: Found specification of procedure mbtowc [2018-04-11 20:17:11,788 INFO L128 BoogieDeclarations]: Found specification of procedure wctomb [2018-04-11 20:17:11,789 INFO L128 BoogieDeclarations]: Found specification of procedure mbstowcs [2018-04-11 20:17:11,789 INFO L128 BoogieDeclarations]: Found specification of procedure wcstombs [2018-04-11 20:17:11,789 INFO L128 BoogieDeclarations]: Found specification of procedure rpmatch [2018-04-11 20:17:11,789 INFO L128 BoogieDeclarations]: Found specification of procedure getsubopt [2018-04-11 20:17:11,789 INFO L128 BoogieDeclarations]: Found specification of procedure getloadavg [2018-04-11 20:17:11,789 INFO L128 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_int [2018-04-11 20:17:11,789 INFO L128 BoogieDeclarations]: Found specification of procedure main [2018-04-11 20:17:11,789 INFO L128 BoogieDeclarations]: Found specification of procedure #Ultimate.alloc [2018-04-11 20:17:11,789 INFO L128 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2018-04-11 20:17:11,789 INFO L128 BoogieDeclarations]: Found specification of procedure write~int [2018-04-11 20:17:11,790 INFO L128 BoogieDeclarations]: Found specification of procedure read~int [2018-04-11 20:17:11,790 INFO L128 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2018-04-11 20:17:11,790 INFO L128 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2018-04-11 20:17:11,790 INFO L128 BoogieDeclarations]: Found specification of procedure write~unchecked~int [2018-04-11 20:17:12,053 INFO L259 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2018-04-11 20:17:12,054 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 11.04 08:17:12 BoogieIcfgContainer [2018-04-11 20:17:12,054 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2018-04-11 20:17:12,054 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2018-04-11 20:17:12,054 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2018-04-11 20:17:12,056 INFO L276 PluginConnector]: TraceAbstraction initialized [2018-04-11 20:17:12,056 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 11.04 08:17:11" (1/3) ... [2018-04-11 20:17:12,057 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@42d367d1 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 11.04 08:17:12, skipping insertion in model container [2018-04-11 20:17:12,057 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.04 08:17:11" (2/3) ... [2018-04-11 20:17:12,057 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@42d367d1 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 11.04 08:17:12, skipping insertion in model container [2018-04-11 20:17:12,057 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 11.04 08:17:12" (3/3) ... [2018-04-11 20:17:12,058 INFO L107 eAbstractionObserver]: Analyzing ICFG count_down-alloca_true-valid-memsafety_true-termination.i [2018-04-11 20:17:12,064 INFO L131 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2018-04-11 20:17:12,069 INFO L143 ceAbstractionStarter]: Appying trace abstraction to program that has 9 error locations. [2018-04-11 20:17:12,093 INFO L128 ementStrategyFactory]: Using default assertion order modulation [2018-04-11 20:17:12,094 INFO L369 AbstractCegarLoop]: Interprodecural is true [2018-04-11 20:17:12,094 INFO L370 AbstractCegarLoop]: Hoare is false [2018-04-11 20:17:12,094 INFO L371 AbstractCegarLoop]: Compute interpolants for FPandBP [2018-04-11 20:17:12,094 INFO L372 AbstractCegarLoop]: Backedges is TWOTRACK [2018-04-11 20:17:12,094 INFO L373 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2018-04-11 20:17:12,094 INFO L374 AbstractCegarLoop]: Difference is false [2018-04-11 20:17:12,094 INFO L375 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2018-04-11 20:17:12,094 INFO L380 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2018-04-11 20:17:12,095 INFO L87 2NestedWordAutomaton]: Mode: main mode - execution starts in main procedure [2018-04-11 20:17:12,103 INFO L276 IsEmpty]: Start isEmpty. Operand 44 states. [2018-04-11 20:17:12,110 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 14 [2018-04-11 20:17:12,110 INFO L347 BasicCegarLoop]: Found error trace [2018-04-11 20:17:12,110 INFO L355 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-04-11 20:17:12,110 INFO L408 AbstractCegarLoop]: === Iteration 1 === [mainErr5RequiresViolation, mainErr3RequiresViolation, mainErr8EnsuresViolationMEMORY_LEAK, mainErr1RequiresViolation, mainErr7RequiresViolation, mainErr2RequiresViolation, mainErr4RequiresViolation, mainErr6RequiresViolation, mainErr0RequiresViolation]=== [2018-04-11 20:17:12,113 INFO L82 PathProgramCache]: Analyzing trace with hash 1144696003, now seen corresponding path program 1 times [2018-04-11 20:17:12,114 INFO L213 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-04-11 20:17:12,115 INFO L68 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-04-11 20:17:12,144 INFO L119 rtionOrderModulation]: Craig nested/tree interpolation forces the following order [2018-04-11 20:17:12,144 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-04-11 20:17:12,144 INFO L119 rtionOrderModulation]: Craig nested/tree interpolation forces the following order [2018-04-11 20:17:12,174 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-04-11 20:17:12,180 WARN L137 erpolLogProxyWrapper]: Using partial proofs (cut at CNF-level). Set option :produce-proofs to true to get complete proofs. [2018-04-11 20:17:12,221 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-04-11 20:17:12,223 INFO L320 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-04-11 20:17:12,224 INFO L335 seRefinementStrategy]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2018-04-11 20:17:12,225 INFO L442 AbstractCegarLoop]: Interpolant automaton has 4 states [2018-04-11 20:17:12,233 INFO L132 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2018-04-11 20:17:12,234 INFO L133 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2018-04-11 20:17:12,235 INFO L87 Difference]: Start difference. First operand 44 states. Second operand 4 states. [2018-04-11 20:17:12,281 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-04-11 20:17:12,281 INFO L93 Difference]: Finished difference Result 42 states and 46 transitions. [2018-04-11 20:17:12,285 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2018-04-11 20:17:12,287 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 13 [2018-04-11 20:17:12,287 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-04-11 20:17:12,292 INFO L225 Difference]: With dead ends: 42 [2018-04-11 20:17:12,292 INFO L226 Difference]: Without dead ends: 39 [2018-04-11 20:17:12,294 INFO L567 BasicCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2018-04-11 20:17:12,304 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 39 states. [2018-04-11 20:17:12,313 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 39 to 39. [2018-04-11 20:17:12,314 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 39 states. [2018-04-11 20:17:12,315 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 39 states to 39 states and 43 transitions. [2018-04-11 20:17:12,316 INFO L78 Accepts]: Start accepts. Automaton has 39 states and 43 transitions. Word has length 13 [2018-04-11 20:17:12,316 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-04-11 20:17:12,316 INFO L459 AbstractCegarLoop]: Abstraction has 39 states and 43 transitions. [2018-04-11 20:17:12,316 INFO L460 AbstractCegarLoop]: Interpolant automaton has 4 states. [2018-04-11 20:17:12,316 INFO L276 IsEmpty]: Start isEmpty. Operand 39 states and 43 transitions. [2018-04-11 20:17:12,316 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 15 [2018-04-11 20:17:12,316 INFO L347 BasicCegarLoop]: Found error trace [2018-04-11 20:17:12,316 INFO L355 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-04-11 20:17:12,316 INFO L408 AbstractCegarLoop]: === Iteration 2 === [mainErr5RequiresViolation, mainErr3RequiresViolation, mainErr8EnsuresViolationMEMORY_LEAK, mainErr1RequiresViolation, mainErr7RequiresViolation, mainErr2RequiresViolation, mainErr4RequiresViolation, mainErr6RequiresViolation, mainErr0RequiresViolation]=== [2018-04-11 20:17:12,317 INFO L82 PathProgramCache]: Analyzing trace with hash 1128795007, now seen corresponding path program 1 times [2018-04-11 20:17:12,317 INFO L213 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-04-11 20:17:12,317 INFO L68 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-04-11 20:17:12,317 INFO L119 rtionOrderModulation]: Craig nested/tree interpolation forces the following order [2018-04-11 20:17:12,317 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-04-11 20:17:12,317 INFO L119 rtionOrderModulation]: Craig nested/tree interpolation forces the following order [2018-04-11 20:17:12,325 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-04-11 20:17:12,325 WARN L137 erpolLogProxyWrapper]: Using partial proofs (cut at CNF-level). Set option :produce-proofs to true to get complete proofs. [2018-04-11 20:17:12,354 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-04-11 20:17:12,355 INFO L320 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-04-11 20:17:12,355 INFO L335 seRefinementStrategy]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2018-04-11 20:17:12,356 INFO L442 AbstractCegarLoop]: Interpolant automaton has 4 states [2018-04-11 20:17:12,356 INFO L132 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2018-04-11 20:17:12,356 INFO L133 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2018-04-11 20:17:12,356 INFO L87 Difference]: Start difference. First operand 39 states and 43 transitions. Second operand 4 states. [2018-04-11 20:17:12,385 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-04-11 20:17:12,385 INFO L93 Difference]: Finished difference Result 35 states and 39 transitions. [2018-04-11 20:17:12,385 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2018-04-11 20:17:12,385 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 14 [2018-04-11 20:17:12,385 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-04-11 20:17:12,386 INFO L225 Difference]: With dead ends: 35 [2018-04-11 20:17:12,386 INFO L226 Difference]: Without dead ends: 35 [2018-04-11 20:17:12,386 INFO L567 BasicCegarLoop]: 0 DeclaredPredicates, 4 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2018-04-11 20:17:12,387 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 35 states. [2018-04-11 20:17:12,389 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 35 to 35. [2018-04-11 20:17:12,390 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 35 states. [2018-04-11 20:17:12,390 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 35 states to 35 states and 39 transitions. [2018-04-11 20:17:12,391 INFO L78 Accepts]: Start accepts. Automaton has 35 states and 39 transitions. Word has length 14 [2018-04-11 20:17:12,391 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-04-11 20:17:12,391 INFO L459 AbstractCegarLoop]: Abstraction has 35 states and 39 transitions. [2018-04-11 20:17:12,391 INFO L460 AbstractCegarLoop]: Interpolant automaton has 4 states. [2018-04-11 20:17:12,391 INFO L276 IsEmpty]: Start isEmpty. Operand 35 states and 39 transitions. [2018-04-11 20:17:12,391 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 15 [2018-04-11 20:17:12,391 INFO L347 BasicCegarLoop]: Found error trace [2018-04-11 20:17:12,391 INFO L355 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-04-11 20:17:12,391 INFO L408 AbstractCegarLoop]: === Iteration 3 === [mainErr5RequiresViolation, mainErr3RequiresViolation, mainErr8EnsuresViolationMEMORY_LEAK, mainErr1RequiresViolation, mainErr7RequiresViolation, mainErr2RequiresViolation, mainErr4RequiresViolation, mainErr6RequiresViolation, mainErr0RequiresViolation]=== [2018-04-11 20:17:12,392 INFO L82 PathProgramCache]: Analyzing trace with hash 1128795008, now seen corresponding path program 1 times [2018-04-11 20:17:12,392 INFO L213 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-04-11 20:17:12,392 INFO L68 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-04-11 20:17:12,392 INFO L119 rtionOrderModulation]: Craig nested/tree interpolation forces the following order [2018-04-11 20:17:12,392 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-04-11 20:17:12,392 INFO L119 rtionOrderModulation]: Craig nested/tree interpolation forces the following order [2018-04-11 20:17:12,404 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-04-11 20:17:12,405 WARN L137 erpolLogProxyWrapper]: Using partial proofs (cut at CNF-level). Set option :produce-proofs to true to get complete proofs. [2018-04-11 20:17:12,518 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-04-11 20:17:12,518 INFO L320 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-04-11 20:17:12,518 INFO L335 seRefinementStrategy]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2018-04-11 20:17:12,519 INFO L442 AbstractCegarLoop]: Interpolant automaton has 7 states [2018-04-11 20:17:12,519 INFO L132 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2018-04-11 20:17:12,519 INFO L133 InterpolantAutomaton]: CoverageRelationStatistics Valid=16, Invalid=26, Unknown=0, NotChecked=0, Total=42 [2018-04-11 20:17:12,519 INFO L87 Difference]: Start difference. First operand 35 states and 39 transitions. Second operand 7 states. [2018-04-11 20:17:12,606 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-04-11 20:17:12,607 INFO L93 Difference]: Finished difference Result 40 states and 45 transitions. [2018-04-11 20:17:12,607 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2018-04-11 20:17:12,607 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 14 [2018-04-11 20:17:12,607 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-04-11 20:17:12,608 INFO L225 Difference]: With dead ends: 40 [2018-04-11 20:17:12,608 INFO L226 Difference]: Without dead ends: 40 [2018-04-11 20:17:12,608 INFO L567 BasicCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=29, Invalid=43, Unknown=0, NotChecked=0, Total=72 [2018-04-11 20:17:12,608 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 40 states. [2018-04-11 20:17:12,610 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 40 to 39. [2018-04-11 20:17:12,610 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 39 states. [2018-04-11 20:17:12,611 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 39 states to 39 states and 44 transitions. [2018-04-11 20:17:12,611 INFO L78 Accepts]: Start accepts. Automaton has 39 states and 44 transitions. Word has length 14 [2018-04-11 20:17:12,612 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-04-11 20:17:12,612 INFO L459 AbstractCegarLoop]: Abstraction has 39 states and 44 transitions. [2018-04-11 20:17:12,612 INFO L460 AbstractCegarLoop]: Interpolant automaton has 7 states. [2018-04-11 20:17:12,612 INFO L276 IsEmpty]: Start isEmpty. Operand 39 states and 44 transitions. [2018-04-11 20:17:12,612 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 20 [2018-04-11 20:17:12,612 INFO L347 BasicCegarLoop]: Found error trace [2018-04-11 20:17:12,612 INFO L355 BasicCegarLoop]: trace histogram [2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-04-11 20:17:12,612 INFO L408 AbstractCegarLoop]: === Iteration 4 === [mainErr5RequiresViolation, mainErr3RequiresViolation, mainErr8EnsuresViolationMEMORY_LEAK, mainErr1RequiresViolation, mainErr7RequiresViolation, mainErr2RequiresViolation, mainErr4RequiresViolation, mainErr6RequiresViolation, mainErr0RequiresViolation]=== [2018-04-11 20:17:12,613 INFO L82 PathProgramCache]: Analyzing trace with hash 675838261, now seen corresponding path program 1 times [2018-04-11 20:17:12,613 INFO L213 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-04-11 20:17:12,613 INFO L68 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-04-11 20:17:12,613 INFO L119 rtionOrderModulation]: Craig nested/tree interpolation forces the following order [2018-04-11 20:17:12,613 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-04-11 20:17:12,614 INFO L119 rtionOrderModulation]: Craig nested/tree interpolation forces the following order [2018-04-11 20:17:12,626 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-04-11 20:17:12,627 WARN L137 erpolLogProxyWrapper]: Using partial proofs (cut at CNF-level). Set option :produce-proofs to true to get complete proofs. [2018-04-11 20:17:12,659 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 2 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-04-11 20:17:12,660 INFO L308 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2018-04-11 20:17:12,660 INFO L213 ckRefinementStrategy]: Switched to mode Z3_FP No working directory specified, using /home/ultimate/work/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 2 with z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 2 with z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:12000 [2018-04-11 20:17:12,668 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-04-11 20:17:12,680 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-04-11 20:17:12,684 INFO L270 TraceCheckSpWp]: Computing forward predicates... [2018-04-11 20:17:12,708 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 4 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-04-11 20:17:12,726 INFO L320 seRefinementStrategy]: Constructing automaton from 1 perfect and 1 imperfect interpolant sequences. [2018-04-11 20:17:12,727 INFO L335 seRefinementStrategy]: Number of different interpolants: perfect sequences [5] imperfect sequences [5] total 7 [2018-04-11 20:17:12,727 INFO L442 AbstractCegarLoop]: Interpolant automaton has 7 states [2018-04-11 20:17:12,727 INFO L132 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2018-04-11 20:17:12,727 INFO L133 InterpolantAutomaton]: CoverageRelationStatistics Valid=17, Invalid=25, Unknown=0, NotChecked=0, Total=42 [2018-04-11 20:17:12,727 INFO L87 Difference]: Start difference. First operand 39 states and 44 transitions. Second operand 7 states. [2018-04-11 20:17:12,767 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-04-11 20:17:12,767 INFO L93 Difference]: Finished difference Result 68 states and 75 transitions. [2018-04-11 20:17:12,768 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2018-04-11 20:17:12,768 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 19 [2018-04-11 20:17:12,768 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-04-11 20:17:12,769 INFO L225 Difference]: With dead ends: 68 [2018-04-11 20:17:12,769 INFO L226 Difference]: Without dead ends: 68 [2018-04-11 20:17:12,769 INFO L567 BasicCegarLoop]: 0 DeclaredPredicates, 23 GetRequests, 18 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=17, Invalid=25, Unknown=0, NotChecked=0, Total=42 [2018-04-11 20:17:12,769 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 68 states. [2018-04-11 20:17:12,772 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 68 to 49. [2018-04-11 20:17:12,772 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 49 states. [2018-04-11 20:17:12,773 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 49 states to 49 states and 55 transitions. [2018-04-11 20:17:12,773 INFO L78 Accepts]: Start accepts. Automaton has 49 states and 55 transitions. Word has length 19 [2018-04-11 20:17:12,774 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-04-11 20:17:12,774 INFO L459 AbstractCegarLoop]: Abstraction has 49 states and 55 transitions. [2018-04-11 20:17:12,774 INFO L460 AbstractCegarLoop]: Interpolant automaton has 7 states. [2018-04-11 20:17:12,774 INFO L276 IsEmpty]: Start isEmpty. Operand 49 states and 55 transitions. [2018-04-11 20:17:12,774 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 20 [2018-04-11 20:17:12,775 INFO L347 BasicCegarLoop]: Found error trace [2018-04-11 20:17:12,775 INFO L355 BasicCegarLoop]: trace histogram [2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-04-11 20:17:12,775 INFO L408 AbstractCegarLoop]: === Iteration 5 === [mainErr5RequiresViolation, mainErr3RequiresViolation, mainErr8EnsuresViolationMEMORY_LEAK, mainErr1RequiresViolation, mainErr7RequiresViolation, mainErr2RequiresViolation, mainErr4RequiresViolation, mainErr6RequiresViolation, mainErr0RequiresViolation]=== [2018-04-11 20:17:12,775 INFO L82 PathProgramCache]: Analyzing trace with hash 89032247, now seen corresponding path program 1 times [2018-04-11 20:17:12,775 INFO L213 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-04-11 20:17:12,775 INFO L68 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-04-11 20:17:12,776 INFO L119 rtionOrderModulation]: Craig nested/tree interpolation forces the following order [2018-04-11 20:17:12,776 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-04-11 20:17:12,776 INFO L119 rtionOrderModulation]: Craig nested/tree interpolation forces the following order [2018-04-11 20:17:12,788 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-04-11 20:17:12,789 WARN L137 erpolLogProxyWrapper]: Using partial proofs (cut at CNF-level). Set option :produce-proofs to true to get complete proofs. [2018-04-11 20:17:12,898 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 2 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-04-11 20:17:12,899 INFO L308 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2018-04-11 20:17:12,899 INFO L213 ckRefinementStrategy]: Switched to mode Z3_FP No working directory specified, using /home/ultimate/work/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 3 with z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 3 with z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:12000 [2018-04-11 20:17:12,904 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-04-11 20:17:12,914 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-04-11 20:17:12,916 INFO L270 TraceCheckSpWp]: Computing forward predicates... [2018-04-11 20:17:12,933 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 8 treesize of output 7 [2018-04-11 20:17:12,934 INFO L267 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2018-04-11 20:17:12,938 INFO L267 ElimStorePlain]: Start of recursive call 1: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-04-11 20:17:12,938 INFO L202 ElimStorePlain]: Needed 2 recursive calls to eliminate 1 variables, input treesize:12, output treesize:11 [2018-04-11 20:17:12,981 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 2 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-04-11 20:17:12,999 INFO L320 seRefinementStrategy]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2018-04-11 20:17:12,999 INFO L335 seRefinementStrategy]: Number of different interpolants: perfect sequences [] imperfect sequences [6, 6] total 7 [2018-04-11 20:17:13,000 INFO L442 AbstractCegarLoop]: Interpolant automaton has 8 states [2018-04-11 20:17:13,000 INFO L132 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2018-04-11 20:17:13,000 INFO L133 InterpolantAutomaton]: CoverageRelationStatistics Valid=17, Invalid=39, Unknown=0, NotChecked=0, Total=56 [2018-04-11 20:17:13,000 INFO L87 Difference]: Start difference. First operand 49 states and 55 transitions. Second operand 8 states. [2018-04-11 20:17:13,117 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-04-11 20:17:13,117 INFO L93 Difference]: Finished difference Result 49 states and 55 transitions. [2018-04-11 20:17:13,118 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2018-04-11 20:17:13,118 INFO L78 Accepts]: Start accepts. Automaton has 8 states. Word has length 19 [2018-04-11 20:17:13,119 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-04-11 20:17:13,119 INFO L225 Difference]: With dead ends: 49 [2018-04-11 20:17:13,119 INFO L226 Difference]: Without dead ends: 49 [2018-04-11 20:17:13,119 INFO L567 BasicCegarLoop]: 0 DeclaredPredicates, 29 GetRequests, 14 SyntacticMatches, 5 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 11 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=46, Invalid=86, Unknown=0, NotChecked=0, Total=132 [2018-04-11 20:17:13,119 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 49 states. [2018-04-11 20:17:13,121 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 49 to 46. [2018-04-11 20:17:13,121 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 46 states. [2018-04-11 20:17:13,121 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 46 states to 46 states and 51 transitions. [2018-04-11 20:17:13,121 INFO L78 Accepts]: Start accepts. Automaton has 46 states and 51 transitions. Word has length 19 [2018-04-11 20:17:13,121 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-04-11 20:17:13,121 INFO L459 AbstractCegarLoop]: Abstraction has 46 states and 51 transitions. [2018-04-11 20:17:13,121 INFO L460 AbstractCegarLoop]: Interpolant automaton has 8 states. [2018-04-11 20:17:13,121 INFO L276 IsEmpty]: Start isEmpty. Operand 46 states and 51 transitions. [2018-04-11 20:17:13,122 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 23 [2018-04-11 20:17:13,122 INFO L347 BasicCegarLoop]: Found error trace [2018-04-11 20:17:13,122 INFO L355 BasicCegarLoop]: trace histogram [2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-04-11 20:17:13,122 INFO L408 AbstractCegarLoop]: === Iteration 6 === [mainErr5RequiresViolation, mainErr3RequiresViolation, mainErr8EnsuresViolationMEMORY_LEAK, mainErr1RequiresViolation, mainErr7RequiresViolation, mainErr2RequiresViolation, mainErr4RequiresViolation, mainErr6RequiresViolation, mainErr0RequiresViolation]=== [2018-04-11 20:17:13,122 INFO L82 PathProgramCache]: Analyzing trace with hash -954875576, now seen corresponding path program 1 times [2018-04-11 20:17:13,122 INFO L213 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-04-11 20:17:13,122 INFO L68 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-04-11 20:17:13,123 INFO L119 rtionOrderModulation]: Craig nested/tree interpolation forces the following order [2018-04-11 20:17:13,123 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-04-11 20:17:13,123 INFO L119 rtionOrderModulation]: Craig nested/tree interpolation forces the following order [2018-04-11 20:17:13,132 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-04-11 20:17:13,133 WARN L137 erpolLogProxyWrapper]: Using partial proofs (cut at CNF-level). Set option :produce-proofs to true to get complete proofs. [2018-04-11 20:17:13,214 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-04-11 20:17:13,215 INFO L308 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2018-04-11 20:17:13,215 INFO L213 ckRefinementStrategy]: Switched to mode Z3_FP No working directory specified, using /home/ultimate/work/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 4 with z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 4 with z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:12000 [2018-04-11 20:17:13,223 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-04-11 20:17:13,235 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-04-11 20:17:13,236 INFO L270 TraceCheckSpWp]: Computing forward predicates... [2018-04-11 20:17:13,280 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-04-11 20:17:13,303 INFO L320 seRefinementStrategy]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2018-04-11 20:17:13,303 INFO L335 seRefinementStrategy]: Number of different interpolants: perfect sequences [] imperfect sequences [7, 6] total 10 [2018-04-11 20:17:13,303 INFO L442 AbstractCegarLoop]: Interpolant automaton has 11 states [2018-04-11 20:17:13,303 INFO L132 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2018-04-11 20:17:13,303 INFO L133 InterpolantAutomaton]: CoverageRelationStatistics Valid=26, Invalid=84, Unknown=0, NotChecked=0, Total=110 [2018-04-11 20:17:13,303 INFO L87 Difference]: Start difference. First operand 46 states and 51 transitions. Second operand 11 states. [2018-04-11 20:17:13,589 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-04-11 20:17:13,589 INFO L93 Difference]: Finished difference Result 129 states and 141 transitions. [2018-04-11 20:17:13,589 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 22 states. [2018-04-11 20:17:13,590 INFO L78 Accepts]: Start accepts. Automaton has 11 states. Word has length 22 [2018-04-11 20:17:13,590 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-04-11 20:17:13,590 INFO L225 Difference]: With dead ends: 129 [2018-04-11 20:17:13,590 INFO L226 Difference]: Without dead ends: 129 [2018-04-11 20:17:13,591 INFO L567 BasicCegarLoop]: 0 DeclaredPredicates, 46 GetRequests, 18 SyntacticMatches, 1 SemanticMatches, 27 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 149 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=222, Invalid=590, Unknown=0, NotChecked=0, Total=812 [2018-04-11 20:17:13,591 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 129 states. [2018-04-11 20:17:13,593 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 129 to 58. [2018-04-11 20:17:13,593 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 58 states. [2018-04-11 20:17:13,594 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 58 states to 58 states and 65 transitions. [2018-04-11 20:17:13,594 INFO L78 Accepts]: Start accepts. Automaton has 58 states and 65 transitions. Word has length 22 [2018-04-11 20:17:13,594 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-04-11 20:17:13,594 INFO L459 AbstractCegarLoop]: Abstraction has 58 states and 65 transitions. [2018-04-11 20:17:13,594 INFO L460 AbstractCegarLoop]: Interpolant automaton has 11 states. [2018-04-11 20:17:13,594 INFO L276 IsEmpty]: Start isEmpty. Operand 58 states and 65 transitions. [2018-04-11 20:17:13,594 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 25 [2018-04-11 20:17:13,594 INFO L347 BasicCegarLoop]: Found error trace [2018-04-11 20:17:13,595 INFO L355 BasicCegarLoop]: trace histogram [2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-04-11 20:17:13,598 INFO L408 AbstractCegarLoop]: === Iteration 7 === [mainErr5RequiresViolation, mainErr3RequiresViolation, mainErr8EnsuresViolationMEMORY_LEAK, mainErr1RequiresViolation, mainErr7RequiresViolation, mainErr2RequiresViolation, mainErr4RequiresViolation, mainErr6RequiresViolation, mainErr0RequiresViolation]=== [2018-04-11 20:17:13,598 INFO L82 PathProgramCache]: Analyzing trace with hash -507650333, now seen corresponding path program 1 times [2018-04-11 20:17:13,598 INFO L213 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-04-11 20:17:13,598 INFO L68 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-04-11 20:17:13,599 INFO L119 rtionOrderModulation]: Craig nested/tree interpolation forces the following order [2018-04-11 20:17:13,599 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-04-11 20:17:13,599 INFO L119 rtionOrderModulation]: Craig nested/tree interpolation forces the following order [2018-04-11 20:17:13,606 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-04-11 20:17:13,606 WARN L137 erpolLogProxyWrapper]: Using partial proofs (cut at CNF-level). Set option :produce-proofs to true to get complete proofs. [2018-04-11 20:17:13,627 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2018-04-11 20:17:13,628 INFO L320 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-04-11 20:17:13,628 INFO L335 seRefinementStrategy]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2018-04-11 20:17:13,628 INFO L442 AbstractCegarLoop]: Interpolant automaton has 4 states [2018-04-11 20:17:13,628 INFO L132 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2018-04-11 20:17:13,628 INFO L133 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2018-04-11 20:17:13,628 INFO L87 Difference]: Start difference. First operand 58 states and 65 transitions. Second operand 4 states. [2018-04-11 20:17:13,645 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-04-11 20:17:13,646 INFO L93 Difference]: Finished difference Result 59 states and 65 transitions. [2018-04-11 20:17:13,646 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2018-04-11 20:17:13,646 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 24 [2018-04-11 20:17:13,647 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-04-11 20:17:13,647 INFO L225 Difference]: With dead ends: 59 [2018-04-11 20:17:13,647 INFO L226 Difference]: Without dead ends: 59 [2018-04-11 20:17:13,647 INFO L567 BasicCegarLoop]: 0 DeclaredPredicates, 4 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2018-04-11 20:17:13,648 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 59 states. [2018-04-11 20:17:13,650 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 59 to 55. [2018-04-11 20:17:13,650 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 55 states. [2018-04-11 20:17:13,651 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 55 states to 55 states and 61 transitions. [2018-04-11 20:17:13,651 INFO L78 Accepts]: Start accepts. Automaton has 55 states and 61 transitions. Word has length 24 [2018-04-11 20:17:13,651 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-04-11 20:17:13,651 INFO L459 AbstractCegarLoop]: Abstraction has 55 states and 61 transitions. [2018-04-11 20:17:13,651 INFO L460 AbstractCegarLoop]: Interpolant automaton has 4 states. [2018-04-11 20:17:13,651 INFO L276 IsEmpty]: Start isEmpty. Operand 55 states and 61 transitions. [2018-04-11 20:17:13,652 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 29 [2018-04-11 20:17:13,652 INFO L347 BasicCegarLoop]: Found error trace [2018-04-11 20:17:13,652 INFO L355 BasicCegarLoop]: trace histogram [2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-04-11 20:17:13,652 INFO L408 AbstractCegarLoop]: === Iteration 8 === [mainErr5RequiresViolation, mainErr3RequiresViolation, mainErr8EnsuresViolationMEMORY_LEAK, mainErr1RequiresViolation, mainErr7RequiresViolation, mainErr2RequiresViolation, mainErr4RequiresViolation, mainErr6RequiresViolation, mainErr0RequiresViolation]=== [2018-04-11 20:17:13,652 INFO L82 PathProgramCache]: Analyzing trace with hash -561175107, now seen corresponding path program 1 times [2018-04-11 20:17:13,652 INFO L213 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-04-11 20:17:13,653 INFO L68 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-04-11 20:17:13,653 INFO L119 rtionOrderModulation]: Craig nested/tree interpolation forces the following order [2018-04-11 20:17:13,653 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-04-11 20:17:13,653 INFO L119 rtionOrderModulation]: Craig nested/tree interpolation forces the following order [2018-04-11 20:17:13,661 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-04-11 20:17:13,662 WARN L137 erpolLogProxyWrapper]: Using partial proofs (cut at CNF-level). Set option :produce-proofs to true to get complete proofs. [2018-04-11 20:17:13,787 INFO L134 CoverageAnalysis]: Checked inductivity of 6 backedges. 2 proven. 4 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-04-11 20:17:13,787 INFO L308 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2018-04-11 20:17:13,787 INFO L213 ckRefinementStrategy]: Switched to mode Z3_FP No working directory specified, using /home/ultimate/work/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 5 with z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 5 with z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:12000 [2018-04-11 20:17:13,792 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-04-11 20:17:13,805 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-04-11 20:17:13,806 INFO L270 TraceCheckSpWp]: Computing forward predicates... [2018-04-11 20:17:13,830 INFO L134 CoverageAnalysis]: Checked inductivity of 6 backedges. 4 proven. 0 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2018-04-11 20:17:13,856 INFO L320 seRefinementStrategy]: Constructing automaton from 1 perfect and 1 imperfect interpolant sequences. [2018-04-11 20:17:13,857 INFO L335 seRefinementStrategy]: Number of different interpolants: perfect sequences [5] imperfect sequences [10] total 12 [2018-04-11 20:17:13,857 INFO L442 AbstractCegarLoop]: Interpolant automaton has 12 states [2018-04-11 20:17:13,857 INFO L132 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2018-04-11 20:17:13,857 INFO L133 InterpolantAutomaton]: CoverageRelationStatistics Valid=28, Invalid=104, Unknown=0, NotChecked=0, Total=132 [2018-04-11 20:17:13,857 INFO L87 Difference]: Start difference. First operand 55 states and 61 transitions. Second operand 12 states. [2018-04-11 20:17:14,047 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-04-11 20:17:14,048 INFO L93 Difference]: Finished difference Result 73 states and 79 transitions. [2018-04-11 20:17:14,048 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2018-04-11 20:17:14,048 INFO L78 Accepts]: Start accepts. Automaton has 12 states. Word has length 28 [2018-04-11 20:17:14,048 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-04-11 20:17:14,049 INFO L225 Difference]: With dead ends: 73 [2018-04-11 20:17:14,049 INFO L226 Difference]: Without dead ends: 73 [2018-04-11 20:17:14,049 INFO L567 BasicCegarLoop]: 0 DeclaredPredicates, 44 GetRequests, 27 SyntacticMatches, 0 SemanticMatches, 17 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 35 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=96, Invalid=246, Unknown=0, NotChecked=0, Total=342 [2018-04-11 20:17:14,049 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 73 states. [2018-04-11 20:17:14,051 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 73 to 68. [2018-04-11 20:17:14,051 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 68 states. [2018-04-11 20:17:14,052 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 68 states to 68 states and 75 transitions. [2018-04-11 20:17:14,052 INFO L78 Accepts]: Start accepts. Automaton has 68 states and 75 transitions. Word has length 28 [2018-04-11 20:17:14,052 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-04-11 20:17:14,052 INFO L459 AbstractCegarLoop]: Abstraction has 68 states and 75 transitions. [2018-04-11 20:17:14,052 INFO L460 AbstractCegarLoop]: Interpolant automaton has 12 states. [2018-04-11 20:17:14,052 INFO L276 IsEmpty]: Start isEmpty. Operand 68 states and 75 transitions. [2018-04-11 20:17:14,053 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 29 [2018-04-11 20:17:14,053 INFO L347 BasicCegarLoop]: Found error trace [2018-04-11 20:17:14,053 INFO L355 BasicCegarLoop]: trace histogram [2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-04-11 20:17:14,053 INFO L408 AbstractCegarLoop]: === Iteration 9 === [mainErr5RequiresViolation, mainErr3RequiresViolation, mainErr8EnsuresViolationMEMORY_LEAK, mainErr1RequiresViolation, mainErr7RequiresViolation, mainErr2RequiresViolation, mainErr4RequiresViolation, mainErr6RequiresViolation, mainErr0RequiresViolation]=== [2018-04-11 20:17:14,053 INFO L82 PathProgramCache]: Analyzing trace with hash -342320389, now seen corresponding path program 1 times [2018-04-11 20:17:14,053 INFO L213 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-04-11 20:17:14,053 INFO L68 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-04-11 20:17:14,054 INFO L119 rtionOrderModulation]: Craig nested/tree interpolation forces the following order [2018-04-11 20:17:14,054 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-04-11 20:17:14,054 INFO L119 rtionOrderModulation]: Craig nested/tree interpolation forces the following order [2018-04-11 20:17:14,064 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-04-11 20:17:14,065 WARN L137 erpolLogProxyWrapper]: Using partial proofs (cut at CNF-level). Set option :produce-proofs to true to get complete proofs. [2018-04-11 20:17:14,184 INFO L134 CoverageAnalysis]: Checked inductivity of 6 backedges. 2 proven. 4 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-04-11 20:17:14,184 INFO L308 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2018-04-11 20:17:14,184 INFO L213 ckRefinementStrategy]: Switched to mode Z3_FP No working directory specified, using /home/ultimate/work/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 6 with z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 6 with z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:12000 [2018-04-11 20:17:14,189 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-04-11 20:17:14,198 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-04-11 20:17:14,199 INFO L270 TraceCheckSpWp]: Computing forward predicates... [2018-04-11 20:17:14,235 INFO L134 CoverageAnalysis]: Checked inductivity of 6 backedges. 4 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-04-11 20:17:14,253 INFO L320 seRefinementStrategy]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2018-04-11 20:17:14,253 INFO L335 seRefinementStrategy]: Number of different interpolants: perfect sequences [] imperfect sequences [10, 7] total 15 [2018-04-11 20:17:14,253 INFO L442 AbstractCegarLoop]: Interpolant automaton has 15 states [2018-04-11 20:17:14,254 INFO L132 InterpolantAutomaton]: Constructing interpolant automaton starting with 15 interpolants. [2018-04-11 20:17:14,254 INFO L133 InterpolantAutomaton]: CoverageRelationStatistics Valid=44, Invalid=166, Unknown=0, NotChecked=0, Total=210 [2018-04-11 20:17:14,254 INFO L87 Difference]: Start difference. First operand 68 states and 75 transitions. Second operand 15 states. [2018-04-11 20:17:14,526 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-04-11 20:17:14,526 INFO L93 Difference]: Finished difference Result 94 states and 104 transitions. [2018-04-11 20:17:14,526 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 18 states. [2018-04-11 20:17:14,526 INFO L78 Accepts]: Start accepts. Automaton has 15 states. Word has length 28 [2018-04-11 20:17:14,526 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-04-11 20:17:14,527 INFO L225 Difference]: With dead ends: 94 [2018-04-11 20:17:14,527 INFO L226 Difference]: Without dead ends: 94 [2018-04-11 20:17:14,527 INFO L567 BasicCegarLoop]: 0 DeclaredPredicates, 51 GetRequests, 25 SyntacticMatches, 0 SemanticMatches, 26 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 143 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=182, Invalid=574, Unknown=0, NotChecked=0, Total=756 [2018-04-11 20:17:14,527 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 94 states. [2018-04-11 20:17:14,529 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 94 to 73. [2018-04-11 20:17:14,529 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 73 states. [2018-04-11 20:17:14,529 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 73 states to 73 states and 82 transitions. [2018-04-11 20:17:14,530 INFO L78 Accepts]: Start accepts. Automaton has 73 states and 82 transitions. Word has length 28 [2018-04-11 20:17:14,530 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-04-11 20:17:14,530 INFO L459 AbstractCegarLoop]: Abstraction has 73 states and 82 transitions. [2018-04-11 20:17:14,530 INFO L460 AbstractCegarLoop]: Interpolant automaton has 15 states. [2018-04-11 20:17:14,530 INFO L276 IsEmpty]: Start isEmpty. Operand 73 states and 82 transitions. [2018-04-11 20:17:14,530 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 31 [2018-04-11 20:17:14,530 INFO L347 BasicCegarLoop]: Found error trace [2018-04-11 20:17:14,530 INFO L355 BasicCegarLoop]: trace histogram [2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-04-11 20:17:14,530 INFO L408 AbstractCegarLoop]: === Iteration 10 === [mainErr5RequiresViolation, mainErr3RequiresViolation, mainErr8EnsuresViolationMEMORY_LEAK, mainErr1RequiresViolation, mainErr7RequiresViolation, mainErr2RequiresViolation, mainErr4RequiresViolation, mainErr6RequiresViolation, mainErr0RequiresViolation]=== [2018-04-11 20:17:14,531 INFO L82 PathProgramCache]: Analyzing trace with hash 1875523034, now seen corresponding path program 1 times [2018-04-11 20:17:14,531 INFO L213 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-04-11 20:17:14,531 INFO L68 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-04-11 20:17:14,531 INFO L119 rtionOrderModulation]: Craig nested/tree interpolation forces the following order [2018-04-11 20:17:14,531 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-04-11 20:17:14,531 INFO L119 rtionOrderModulation]: Craig nested/tree interpolation forces the following order [2018-04-11 20:17:14,543 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-04-11 20:17:14,543 WARN L137 erpolLogProxyWrapper]: Using partial proofs (cut at CNF-level). Set option :produce-proofs to true to get complete proofs. [2018-04-11 20:17:14,581 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 4 trivial. 0 not checked. [2018-04-11 20:17:14,581 INFO L320 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-04-11 20:17:14,581 INFO L335 seRefinementStrategy]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2018-04-11 20:17:14,582 INFO L442 AbstractCegarLoop]: Interpolant automaton has 4 states [2018-04-11 20:17:14,582 INFO L132 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2018-04-11 20:17:14,582 INFO L133 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2018-04-11 20:17:14,582 INFO L87 Difference]: Start difference. First operand 73 states and 82 transitions. Second operand 4 states. [2018-04-11 20:17:14,596 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-04-11 20:17:14,597 INFO L93 Difference]: Finished difference Result 72 states and 81 transitions. [2018-04-11 20:17:14,597 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2018-04-11 20:17:14,597 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 30 [2018-04-11 20:17:14,597 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-04-11 20:17:14,597 INFO L225 Difference]: With dead ends: 72 [2018-04-11 20:17:14,597 INFO L226 Difference]: Without dead ends: 45 [2018-04-11 20:17:14,597 INFO L567 BasicCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2018-04-11 20:17:14,598 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 45 states. [2018-04-11 20:17:14,599 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 45 to 45. [2018-04-11 20:17:14,599 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 45 states. [2018-04-11 20:17:14,599 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 45 states to 45 states and 50 transitions. [2018-04-11 20:17:14,599 INFO L78 Accepts]: Start accepts. Automaton has 45 states and 50 transitions. Word has length 30 [2018-04-11 20:17:14,599 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-04-11 20:17:14,599 INFO L459 AbstractCegarLoop]: Abstraction has 45 states and 50 transitions. [2018-04-11 20:17:14,599 INFO L460 AbstractCegarLoop]: Interpolant automaton has 4 states. [2018-04-11 20:17:14,599 INFO L276 IsEmpty]: Start isEmpty. Operand 45 states and 50 transitions. [2018-04-11 20:17:14,600 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 34 [2018-04-11 20:17:14,600 INFO L347 BasicCegarLoop]: Found error trace [2018-04-11 20:17:14,600 INFO L355 BasicCegarLoop]: trace histogram [3, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-04-11 20:17:14,600 INFO L408 AbstractCegarLoop]: === Iteration 11 === [mainErr5RequiresViolation, mainErr3RequiresViolation, mainErr8EnsuresViolationMEMORY_LEAK, mainErr1RequiresViolation, mainErr7RequiresViolation, mainErr2RequiresViolation, mainErr4RequiresViolation, mainErr6RequiresViolation, mainErr0RequiresViolation]=== [2018-04-11 20:17:14,600 INFO L82 PathProgramCache]: Analyzing trace with hash 1787761716, now seen corresponding path program 2 times [2018-04-11 20:17:14,600 INFO L213 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-04-11 20:17:14,600 INFO L68 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-04-11 20:17:14,600 INFO L119 rtionOrderModulation]: Craig nested/tree interpolation forces the following order [2018-04-11 20:17:14,601 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-04-11 20:17:14,601 INFO L119 rtionOrderModulation]: Craig nested/tree interpolation forces the following order [2018-04-11 20:17:14,608 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-04-11 20:17:14,609 WARN L137 erpolLogProxyWrapper]: Using partial proofs (cut at CNF-level). Set option :produce-proofs to true to get complete proofs. [2018-04-11 20:17:14,644 INFO L134 CoverageAnalysis]: Checked inductivity of 13 backedges. 7 proven. 2 refuted. 0 times theorem prover too weak. 4 trivial. 0 not checked. [2018-04-11 20:17:14,644 INFO L308 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2018-04-11 20:17:14,644 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 20:17:14,649 INFO L103 rtionOrderModulation]: Keeping assertion order OUTSIDE_LOOP_FIRST1 [2018-04-11 20:17:14,663 INFO L242 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2018-04-11 20:17:14,664 INFO L243 tOrderPrioritization]: Conjunction of SSA is unsat [2018-04-11 20:17:14,666 INFO L270 TraceCheckSpWp]: Computing forward predicates... [2018-04-11 20:17:14,775 INFO L134 CoverageAnalysis]: Checked inductivity of 13 backedges. 4 proven. 9 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-04-11 20:17:14,792 INFO L320 seRefinementStrategy]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2018-04-11 20:17:14,792 INFO L335 seRefinementStrategy]: Number of different interpolants: perfect sequences [] imperfect sequences [7, 8] total 14 [2018-04-11 20:17:14,793 INFO L442 AbstractCegarLoop]: Interpolant automaton has 15 states [2018-04-11 20:17:14,793 INFO L132 InterpolantAutomaton]: Constructing interpolant automaton starting with 15 interpolants. [2018-04-11 20:17:14,793 INFO L133 InterpolantAutomaton]: CoverageRelationStatistics Valid=40, Invalid=170, Unknown=0, NotChecked=0, Total=210 [2018-04-11 20:17:14,793 INFO L87 Difference]: Start difference. First operand 45 states and 50 transitions. Second operand 15 states. [2018-04-11 20:17:15,007 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-04-11 20:17:15,008 INFO L93 Difference]: Finished difference Result 55 states and 62 transitions. [2018-04-11 20:17:15,008 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2018-04-11 20:17:15,008 INFO L78 Accepts]: Start accepts. Automaton has 15 states. Word has length 33 [2018-04-11 20:17:15,008 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-04-11 20:17:15,008 INFO L225 Difference]: With dead ends: 55 [2018-04-11 20:17:15,008 INFO L226 Difference]: Without dead ends: 0 [2018-04-11 20:17:15,009 INFO L567 BasicCegarLoop]: 0 DeclaredPredicates, 53 GetRequests, 29 SyntacticMatches, 0 SemanticMatches, 24 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 75 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=176, Invalid=474, Unknown=0, NotChecked=0, Total=650 [2018-04-11 20:17:15,009 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2018-04-11 20:17:15,009 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2018-04-11 20:17:15,009 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 0 states. [2018-04-11 20:17:15,009 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2018-04-11 20:17:15,010 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 33 [2018-04-11 20:17:15,010 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-04-11 20:17:15,010 INFO L459 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2018-04-11 20:17:15,010 INFO L460 AbstractCegarLoop]: Interpolant automaton has 15 states. [2018-04-11 20:17:15,010 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2018-04-11 20:17:15,010 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2018-04-11 20:17:15,013 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 11.04 08:17:15 BoogieIcfgContainer [2018-04-11 20:17:15,013 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2018-04-11 20:17:15,013 INFO L168 Benchmark]: Toolchain (without parser) took 3645.13 ms. Allocated memory was 403.7 MB in the beginning and 601.9 MB in the end (delta: 198.2 MB). Free memory was 334.7 MB in the beginning and 406.6 MB in the end (delta: -71.9 MB). Peak memory consumption was 126.3 MB. Max. memory is 5.3 GB. [2018-04-11 20:17:15,014 INFO L168 Benchmark]: CDTParser took 0.21 ms. Allocated memory is still 403.7 MB. Free memory is still 363.3 MB. There was no memory consumed. Max. memory is 5.3 GB. [2018-04-11 20:17:15,014 INFO L168 Benchmark]: CACSL2BoogieTranslator took 239.26 ms. Allocated memory is still 403.7 MB. Free memory was 333.4 MB in the beginning and 310.3 MB in the end (delta: 23.1 MB). Peak memory consumption was 23.1 MB. Max. memory is 5.3 GB. [2018-04-11 20:17:15,015 INFO L168 Benchmark]: Boogie Preprocessor took 53.12 ms. Allocated memory is still 403.7 MB. Free memory was 310.3 MB in the beginning and 307.6 MB in the end (delta: 2.6 MB). Peak memory consumption was 2.6 MB. Max. memory is 5.3 GB. [2018-04-11 20:17:15,015 INFO L168 Benchmark]: RCFGBuilder took 391.44 ms. Allocated memory was 403.7 MB in the beginning and 564.7 MB in the end (delta: 161.0 MB). Free memory was 307.6 MB in the beginning and 502.3 MB in the end (delta: -194.7 MB). Peak memory consumption was 23.6 MB. Max. memory is 5.3 GB. [2018-04-11 20:17:15,015 INFO L168 Benchmark]: TraceAbstraction took 2958.77 ms. Allocated memory was 564.7 MB in the beginning and 601.9 MB in the end (delta: 37.2 MB). Free memory was 502.3 MB in the beginning and 406.6 MB in the end (delta: 95.7 MB). Peak memory consumption was 132.9 MB. Max. memory is 5.3 GB. [2018-04-11 20:17:15,016 INFO L344 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.21 ms. Allocated memory is still 403.7 MB. Free memory is still 363.3 MB. There was no memory consumed. Max. memory is 5.3 GB. * CACSL2BoogieTranslator took 239.26 ms. Allocated memory is still 403.7 MB. Free memory was 333.4 MB in the beginning and 310.3 MB in the end (delta: 23.1 MB). Peak memory consumption was 23.1 MB. Max. memory is 5.3 GB. * Boogie Preprocessor took 53.12 ms. Allocated memory is still 403.7 MB. Free memory was 310.3 MB in the beginning and 307.6 MB in the end (delta: 2.6 MB). Peak memory consumption was 2.6 MB. Max. memory is 5.3 GB. * RCFGBuilder took 391.44 ms. Allocated memory was 403.7 MB in the beginning and 564.7 MB in the end (delta: 161.0 MB). Free memory was 307.6 MB in the beginning and 502.3 MB in the end (delta: -194.7 MB). Peak memory consumption was 23.6 MB. Max. memory is 5.3 GB. * TraceAbstraction took 2958.77 ms. Allocated memory was 564.7 MB in the beginning and 601.9 MB in the end (delta: 37.2 MB). Free memory was 502.3 MB in the beginning and 406.6 MB in the end (delta: 95.7 MB). Peak memory consumption was 132.9 MB. Max. memory is 5.3 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - PositiveResult [Line: 556]: pointer dereference always succeeds For all program executions holds that pointer dereference always succeeds at this location - PositiveResult [Line: 555]: pointer dereference always succeeds For all program executions holds that pointer dereference always succeeds at this location - PositiveResult [Line: 540]: all allocated memory was freed For all program executions holds that all allocated memory was freed at this location - PositiveResult [Line: 552]: pointer dereference always succeeds For all program executions holds that pointer dereference always succeeds at this location - PositiveResult [Line: 556]: pointer dereference always succeeds For all program executions holds that pointer dereference always succeeds at this location - PositiveResult [Line: 555]: pointer dereference always succeeds For all program executions holds that pointer dereference always succeeds at this location - PositiveResult [Line: 556]: pointer dereference always succeeds For all program executions holds that pointer dereference always succeeds at this location - PositiveResult [Line: 556]: pointer dereference always succeeds For all program executions holds that pointer dereference always succeeds at this location - PositiveResult [Line: 552]: pointer dereference always succeeds For all program executions holds that pointer dereference always succeeds at this location - AllSpecificationsHoldResult: All specifications hold 9 specifications checked. All of them hold - StatisticsResult: Ultimate Automizer benchmark data CFG has 5 procedures, 50 locations, 9 error locations. SAFE Result, 2.9s OverallTime, 11 OverallIterations, 3 TraceHistogramMax, 1.3s AutomataDifference, 0.0s DeadEndRemovalTime, 0.0s HoareAnnotationTime, HoareTripleCheckerStatistics: 312 SDtfs, 1462 SDslu, 818 SDs, 0 SdLazy, 785 SolverSat, 106 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 0.4s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 272 GetRequests, 139 SyntacticMatches, 6 SemanticMatches, 127 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 418 ImplicationChecksByTransitivity, 1.3s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=73occurred in iteration=9, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s AbstIntTime, 0 AbstIntIterations, 0 AbstIntStrong, NaN AbsIntWeakeningRatio, NaN AbsIntAvgWeakeningVarsNumRemoved, NaN AbsIntAvgWeakenedConjuncts, 0.0s DumpTime, AutomataMinimizationStatistics: 0.0s AutomataMinimizationTime, 11 MinimizatonAttempts, 124 StatesRemovedByMinimization, 7 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TraceCheckStatistics: 0.0s SsaConstructionTime, 0.1s SatisfiabilityAnalysisTime, 1.0s InterpolantComputationTime, 393 NumberOfCodeBlocks, 393 NumberOfCodeBlocksAsserted, 18 NumberOfCheckSat, 376 ConstructedInterpolants, 16 QuantifiedInterpolants, 62558 SizeOfPredicates, 14 NumberOfNonLiveVariables, 485 ConjunctsInSsa, 42 ConjunctsInUnsatCore, 17 InterpolantComputations, 7 PerfectInterpolantSequences, 45/76 InterpolantCoveringCapability, InvariantSynthesisStatistics: No data available, InterpolantConsolidationStatistics: No data available, ReuseStatistics: No data available RESULT: Ultimate proved your program to be correct! Written .csv to /home/ultimate/work/ultimate/releaseScripts/default/UAutomizer-linux/../../../releaseScripts/default/UAutomizer-linux/csv/count_down-alloca_true-valid-memsafety_true-termination.i_svcomp-DerefFreeMemtrack-32bit-Automizer_Camel.epf_AutomizerC.xml/Csv-Benchmark-0-2018-04-11_20-17-15-021.csv Written .csv to /home/ultimate/work/ultimate/releaseScripts/default/UAutomizer-linux/../../../releaseScripts/default/UAutomizer-linux/csv/count_down-alloca_true-valid-memsafety_true-termination.i_svcomp-DerefFreeMemtrack-32bit-Automizer_Camel.epf_AutomizerC.xml/Csv-TraceAbstractionBenchmarks-0-2018-04-11_20-17-15-021.csv Received shutdown request...