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_SmtInterpol_NoArray.epf -i ../../../trunk/examples/svcomp/list-ext-properties/simple-ext_1_true-valid-memsafety.i -------------------------------------------------------------------------------- This is Ultimate 0.1.23-666feb3-m [2018-04-11 16:19:04,285 INFO L170 SettingsManager]: Resetting all preferences to default values... [2018-04-11 16:19:04,286 INFO L174 SettingsManager]: Resetting UltimateCore preferences to default values [2018-04-11 16:19:04,297 INFO L177 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2018-04-11 16:19:04,297 INFO L174 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2018-04-11 16:19:04,298 INFO L174 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2018-04-11 16:19:04,299 INFO L174 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2018-04-11 16:19:04,301 INFO L174 SettingsManager]: Resetting LassoRanker preferences to default values [2018-04-11 16:19:04,302 INFO L174 SettingsManager]: Resetting Reaching Definitions preferences to default values [2018-04-11 16:19:04,303 INFO L174 SettingsManager]: Resetting SyntaxChecker preferences to default values [2018-04-11 16:19:04,304 INFO L177 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2018-04-11 16:19:04,304 INFO L174 SettingsManager]: Resetting LTL2Aut preferences to default values [2018-04-11 16:19:04,305 INFO L174 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2018-04-11 16:19:04,306 INFO L174 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2018-04-11 16:19:04,307 INFO L174 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2018-04-11 16:19:04,308 INFO L174 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2018-04-11 16:19:04,310 INFO L174 SettingsManager]: Resetting CodeCheck preferences to default values [2018-04-11 16:19:04,311 INFO L174 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2018-04-11 16:19:04,312 INFO L174 SettingsManager]: Resetting RCFGBuilder preferences to default values [2018-04-11 16:19:04,313 INFO L174 SettingsManager]: Resetting TraceAbstraction preferences to default values [2018-04-11 16:19:04,315 INFO L177 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2018-04-11 16:19:04,315 INFO L177 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2018-04-11 16:19:04,315 INFO L174 SettingsManager]: Resetting IcfgTransformer preferences to default values [2018-04-11 16:19:04,316 INFO L174 SettingsManager]: Resetting Boogie Printer preferences to default values [2018-04-11 16:19:04,317 INFO L174 SettingsManager]: Resetting Witness Printer preferences to default values [2018-04-11 16:19:04,318 INFO L177 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2018-04-11 16:19:04,318 INFO L174 SettingsManager]: Resetting CDTParser preferences to default values [2018-04-11 16:19:04,319 INFO L174 SettingsManager]: Resetting PEA to Boogie preferences to default values [2018-04-11 16:19:04,319 INFO L177 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2018-04-11 16:19:04,320 INFO L174 SettingsManager]: Resetting Witness Parser preferences to default values [2018-04-11 16:19:04,320 INFO L181 SettingsManager]: Finished resetting all preferences to default values... [2018-04-11 16:19:04,320 INFO L98 SettingsManager]: Beginning loading settings from /home/ultimate/work/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/settings/cade18-smtinterpol/svcomp-DerefFreeMemtrack-32bit-Automizer_SmtInterpol_NoArray.epf [2018-04-11 16:19:04,342 INFO L110 SettingsManager]: Loading preferences was successful [2018-04-11 16:19:04,342 INFO L112 SettingsManager]: Preferences different from defaults after loading the file: [2018-04-11 16:19:04,343 INFO L131 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2018-04-11 16:19:04,343 INFO L133 SettingsManager]: * Create parallel compositions if possible=false [2018-04-11 16:19:04,343 INFO L133 SettingsManager]: * Use SBE=true [2018-04-11 16:19:04,344 INFO L131 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2018-04-11 16:19:04,344 INFO L133 SettingsManager]: * sizeof long=4 [2018-04-11 16:19:04,344 INFO L133 SettingsManager]: * Check unreachability of error function in SV-COMP mode=false [2018-04-11 16:19:04,344 INFO L133 SettingsManager]: * Overapproximate operations on floating types=true [2018-04-11 16:19:04,344 INFO L133 SettingsManager]: * sizeof POINTER=4 [2018-04-11 16:19:04,344 INFO L133 SettingsManager]: * Check division by zero=IGNORE [2018-04-11 16:19:04,344 INFO L133 SettingsManager]: * Check for the main procedure if all allocated memory was freed=true [2018-04-11 16:19:04,345 INFO L133 SettingsManager]: * Bitprecise bitfields=true [2018-04-11 16:19:04,345 INFO L133 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2018-04-11 16:19:04,345 INFO L133 SettingsManager]: * sizeof long double=12 [2018-04-11 16:19:04,345 INFO L131 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2018-04-11 16:19:04,345 INFO L133 SettingsManager]: * Size of a code block=SequenceOfStatements [2018-04-11 16:19:04,345 INFO L133 SettingsManager]: * To the following directory=./dump/ [2018-04-11 16:19:04,345 INFO L133 SettingsManager]: * SMT solver=External_DefaultMode [2018-04-11 16:19:04,346 INFO L133 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2018-04-11 16:19:04,346 INFO L131 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2018-04-11 16:19:04,346 INFO L133 SettingsManager]: * Interpolant automaton=TWOTRACK [2018-04-11 16:19:04,346 INFO L133 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2018-04-11 16:19:04,346 INFO L133 SettingsManager]: * Trace refinement strategy=SMTINTERPOL Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Bitprecise bitfields -> false [2018-04-11 16:19:04,377 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2018-04-11 16:19:04,390 INFO L266 ainManager$Toolchain]: [Toolchain 1]: Parser(s) successfully (re)initialized [2018-04-11 16:19:04,397 INFO L222 ainManager$Toolchain]: [Toolchain 1]: Toolchain data selected. [2018-04-11 16:19:04,399 INFO L271 PluginConnector]: Initializing CDTParser... [2018-04-11 16:19:04,399 INFO L276 PluginConnector]: CDTParser initialized [2018-04-11 16:19:04,400 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /home/ultimate/work/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/list-ext-properties/simple-ext_1_true-valid-memsafety.i [2018-04-11 16:19:04,709 INFO L225 CDTParser]: Created temporary CDT project at /home/ultimate/work/ultimate/releaseScripts/default/UAutomizer-linux/data/FLAG2e10af668 [2018-04-11 16:19:04,836 INFO L287 CDTParser]: IsIndexed: true [2018-04-11 16:19:04,836 INFO L288 CDTParser]: Found 1 translation units. [2018-04-11 16:19:04,837 INFO L168 CDTParser]: Scanning simple-ext_1_true-valid-memsafety.i [2018-04-11 16:19:04,843 INFO L210 ultiparseSymbolTable]: Include resolver: [2018-04-11 16:19:04,843 INFO L215 ultiparseSymbolTable]: [2018-04-11 16:19:04,843 INFO L218 ultiparseSymbolTable]: Function table: [2018-04-11 16:19:04,843 INFO L221 ultiparseSymbolTable]: Function definition of __U_MULTI_fsimple_ext___true_valid_memsafety_i__exit ('exit') in simple-ext_1_true-valid-memsafety.i [2018-04-11 16:19:04,844 INFO L221 ultiparseSymbolTable]: Function definition of null ('main') in simple-ext_1_true-valid-memsafety.i [2018-04-11 16:19:04,844 INFO L227 ultiparseSymbolTable]: Global variable table: [2018-04-11 16:19:04,844 INFO L230 ultiparseSymbolTable]: Global variable declaration of __U_MULTI_fsimple_ext___true_valid_memsafety_i__u_quad_t in simple-ext_1_true-valid-memsafety.i [2018-04-11 16:19:04,844 INFO L230 ultiparseSymbolTable]: Global variable declaration of __U_MULTI_fsimple_ext___true_valid_memsafety_i____caddr_t in simple-ext_1_true-valid-memsafety.i [2018-04-11 16:19:04,844 INFO L230 ultiparseSymbolTable]: Global variable declaration of __U_MULTI_fsimple_ext___true_valid_memsafety_i__fd_set in simple-ext_1_true-valid-memsafety.i [2018-04-11 16:19:04,844 INFO L230 ultiparseSymbolTable]: Global variable declaration of __U_MULTI_fsimple_ext___true_valid_memsafety_i____u_char in simple-ext_1_true-valid-memsafety.i [2018-04-11 16:19:04,844 INFO L230 ultiparseSymbolTable]: Global variable declaration of __U_MULTI_fsimple_ext___true_valid_memsafety_i____off64_t in simple-ext_1_true-valid-memsafety.i [2018-04-11 16:19:04,844 INFO L230 ultiparseSymbolTable]: Global variable declaration of __U_MULTI_fsimple_ext___true_valid_memsafety_i__ulong in simple-ext_1_true-valid-memsafety.i [2018-04-11 16:19:04,844 INFO L230 ultiparseSymbolTable]: Global variable declaration of __U_MULTI_fsimple_ext___true_valid_memsafety_i__pthread_rwlockattr_t in simple-ext_1_true-valid-memsafety.i [2018-04-11 16:19:04,844 INFO L230 ultiparseSymbolTable]: Global variable declaration of __U_MULTI_fsimple_ext___true_valid_memsafety_i__fsblkcnt_t in simple-ext_1_true-valid-memsafety.i [2018-04-11 16:19:04,844 INFO L230 ultiparseSymbolTable]: Global variable declaration of __U_MULTI_fsimple_ext___true_valid_memsafety_i__clock_t in simple-ext_1_true-valid-memsafety.i [2018-04-11 16:19:04,844 INFO L230 ultiparseSymbolTable]: Global variable declaration of __U_MULTI_fsimple_ext___true_valid_memsafety_i__mode_t in simple-ext_1_true-valid-memsafety.i [2018-04-11 16:19:04,844 INFO L230 ultiparseSymbolTable]: Global variable declaration of __U_MULTI_fsimple_ext___true_valid_memsafety_i____rlim64_t in simple-ext_1_true-valid-memsafety.i [2018-04-11 16:19:04,844 INFO L230 ultiparseSymbolTable]: Global variable declaration of __U_MULTI_fsimple_ext___true_valid_memsafety_i____qaddr_t in simple-ext_1_true-valid-memsafety.i [2018-04-11 16:19:04,844 INFO L230 ultiparseSymbolTable]: Global variable declaration of __U_MULTI_fsimple_ext___true_valid_memsafety_i____dev_t in simple-ext_1_true-valid-memsafety.i [2018-04-11 16:19:04,844 INFO L230 ultiparseSymbolTable]: Global variable declaration of __U_MULTI_fsimple_ext___true_valid_memsafety_i____uint16_t in simple-ext_1_true-valid-memsafety.i [2018-04-11 16:19:04,844 INFO L230 ultiparseSymbolTable]: Global variable declaration of __U_MULTI_fsimple_ext___true_valid_memsafety_i____gid_t in simple-ext_1_true-valid-memsafety.i [2018-04-11 16:19:04,844 INFO L230 ultiparseSymbolTable]: Global variable declaration of __U_MULTI_fsimple_ext___true_valid_memsafety_i____id_t in simple-ext_1_true-valid-memsafety.i [2018-04-11 16:19:04,844 INFO L230 ultiparseSymbolTable]: Global variable declaration of __U_MULTI_fsimple_ext___true_valid_memsafety_i____blksize_t in simple-ext_1_true-valid-memsafety.i [2018-04-11 16:19:04,845 INFO L230 ultiparseSymbolTable]: Global variable declaration of __U_MULTI_fsimple_ext___true_valid_memsafety_i__u_int32_t in simple-ext_1_true-valid-memsafety.i [2018-04-11 16:19:04,845 INFO L230 ultiparseSymbolTable]: Global variable declaration of __U_MULTI_fsimple_ext___true_valid_memsafety_i__daddr_t in simple-ext_1_true-valid-memsafety.i [2018-04-11 16:19:04,845 INFO L230 ultiparseSymbolTable]: Global variable declaration of __U_MULTI_fsimple_ext___true_valid_memsafety_i____int32_t in simple-ext_1_true-valid-memsafety.i [2018-04-11 16:19:04,845 INFO L230 ultiparseSymbolTable]: Global variable declaration of __U_MULTI_fsimple_ext___true_valid_memsafety_i____WAIT_STATUS in simple-ext_1_true-valid-memsafety.i [2018-04-11 16:19:04,845 INFO L230 ultiparseSymbolTable]: Global variable declaration of __U_MULTI_fsimple_ext___true_valid_memsafety_i__ushort in simple-ext_1_true-valid-memsafety.i [2018-04-11 16:19:04,845 INFO L230 ultiparseSymbolTable]: Global variable declaration of __U_MULTI_fsimple_ext___true_valid_memsafety_i____time_t in simple-ext_1_true-valid-memsafety.i [2018-04-11 16:19:04,845 INFO L230 ultiparseSymbolTable]: Global variable declaration of __U_MULTI_fsimple_ext___true_valid_memsafety_i__fd_mask in simple-ext_1_true-valid-memsafety.i [2018-04-11 16:19:04,845 INFO L230 ultiparseSymbolTable]: Global variable declaration of __U_MULTI_fsimple_ext___true_valid_memsafety_i__pthread_mutex_t in simple-ext_1_true-valid-memsafety.i [2018-04-11 16:19:04,845 INFO L230 ultiparseSymbolTable]: Global variable declaration of __U_MULTI_fsimple_ext___true_valid_memsafety_i__int64_t in simple-ext_1_true-valid-memsafety.i [2018-04-11 16:19:04,845 INFO L230 ultiparseSymbolTable]: Global variable declaration of __U_MULTI_fsimple_ext___true_valid_memsafety_i__key_t in simple-ext_1_true-valid-memsafety.i [2018-04-11 16:19:04,845 INFO L230 ultiparseSymbolTable]: Global variable declaration of __U_MULTI_fsimple_ext___true_valid_memsafety_i____fsfilcnt_t in simple-ext_1_true-valid-memsafety.i [2018-04-11 16:19:04,845 INFO L230 ultiparseSymbolTable]: Global variable declaration of __U_MULTI_fsimple_ext___true_valid_memsafety_i____ino64_t in simple-ext_1_true-valid-memsafety.i [2018-04-11 16:19:04,845 INFO L230 ultiparseSymbolTable]: Global variable declaration of __U_MULTI_fsimple_ext___true_valid_memsafety_i__int8_t in simple-ext_1_true-valid-memsafety.i [2018-04-11 16:19:04,845 INFO L230 ultiparseSymbolTable]: Global variable declaration of __U_MULTI_fsimple_ext___true_valid_memsafety_i__fsfilcnt_t in simple-ext_1_true-valid-memsafety.i [2018-04-11 16:19:04,845 INFO L230 ultiparseSymbolTable]: Global variable declaration of __U_MULTI_fsimple_ext___true_valid_memsafety_i____off_t in simple-ext_1_true-valid-memsafety.i [2018-04-11 16:19:04,845 INFO L230 ultiparseSymbolTable]: Global variable declaration of __U_MULTI_fsimple_ext___true_valid_memsafety_i__u_int64_t in simple-ext_1_true-valid-memsafety.i [2018-04-11 16:19:04,845 INFO L230 ultiparseSymbolTable]: Global variable declaration of __U_MULTI_fsimple_ext___true_valid_memsafety_i__ino_t in simple-ext_1_true-valid-memsafety.i [2018-04-11 16:19:04,846 INFO L230 ultiparseSymbolTable]: Global variable declaration of __U_MULTI_fsimple_ext___true_valid_memsafety_i____uint8_t in simple-ext_1_true-valid-memsafety.i [2018-04-11 16:19:04,846 INFO L230 ultiparseSymbolTable]: Global variable declaration of __U_MULTI_fsimple_ext___true_valid_memsafety_i____key_t in simple-ext_1_true-valid-memsafety.i [2018-04-11 16:19:04,846 INFO L230 ultiparseSymbolTable]: Global variable declaration of __U_MULTI_fsimple_ext___true_valid_memsafety_i____u_int in simple-ext_1_true-valid-memsafety.i [2018-04-11 16:19:04,846 INFO L230 ultiparseSymbolTable]: Global variable declaration of __U_MULTI_fsimple_ext___true_valid_memsafety_i__dev_t in simple-ext_1_true-valid-memsafety.i [2018-04-11 16:19:04,846 INFO L230 ultiparseSymbolTable]: Global variable declaration of __U_MULTI_fsimple_ext___true_valid_memsafety_i__ldiv_t in simple-ext_1_true-valid-memsafety.i [2018-04-11 16:19:04,846 INFO L230 ultiparseSymbolTable]: Global variable declaration of __U_MULTI_fsimple_ext___true_valid_memsafety_i____useconds_t in simple-ext_1_true-valid-memsafety.i [2018-04-11 16:19:04,846 INFO L230 ultiparseSymbolTable]: Global variable declaration of __U_MULTI_fsimple_ext___true_valid_memsafety_i__time_t in simple-ext_1_true-valid-memsafety.i [2018-04-11 16:19:04,846 INFO L230 ultiparseSymbolTable]: Global variable declaration of __U_MULTI_fsimple_ext___true_valid_memsafety_i____fsfilcnt64_t in simple-ext_1_true-valid-memsafety.i [2018-04-11 16:19:04,846 INFO L230 ultiparseSymbolTable]: Global variable declaration of __U_MULTI_fsimple_ext___true_valid_memsafety_i__id_t in simple-ext_1_true-valid-memsafety.i [2018-04-11 16:19:04,846 INFO L230 ultiparseSymbolTable]: Global variable declaration of __U_MULTI_fsimple_ext___true_valid_memsafety_i__register_t in simple-ext_1_true-valid-memsafety.i [2018-04-11 16:19:04,847 INFO L230 ultiparseSymbolTable]: Global variable declaration of __U_MULTI_fsimple_ext___true_valid_memsafety_i__pthread_barrierattr_t in simple-ext_1_true-valid-memsafety.i [2018-04-11 16:19:04,847 INFO L230 ultiparseSymbolTable]: Global variable declaration of __U_MULTI_fsimple_ext___true_valid_memsafety_i__sigset_t in simple-ext_1_true-valid-memsafety.i [2018-04-11 16:19:04,847 INFO L230 ultiparseSymbolTable]: Global variable declaration of __U_MULTI_fsimple_ext___true_valid_memsafety_i____fsblkcnt_t in simple-ext_1_true-valid-memsafety.i [2018-04-11 16:19:04,847 INFO L230 ultiparseSymbolTable]: Global variable declaration of __U_MULTI_fsimple_ext___true_valid_memsafety_i__pthread_key_t in simple-ext_1_true-valid-memsafety.i [2018-04-11 16:19:04,847 INFO L230 ultiparseSymbolTable]: Global variable declaration of __U_MULTI_fsimple_ext___true_valid_memsafety_i__pthread_rwlock_t in simple-ext_1_true-valid-memsafety.i [2018-04-11 16:19:04,847 INFO L230 ultiparseSymbolTable]: Global variable declaration of __U_MULTI_fsimple_ext___true_valid_memsafety_i____blkcnt_t in simple-ext_1_true-valid-memsafety.i [2018-04-11 16:19:04,847 INFO L230 ultiparseSymbolTable]: Global variable declaration of __U_MULTI_fsimple_ext___true_valid_memsafety_i__pthread_once_t in simple-ext_1_true-valid-memsafety.i [2018-04-11 16:19:04,847 INFO L230 ultiparseSymbolTable]: Global variable declaration of __U_MULTI_fsimple_ext___true_valid_memsafety_i____uint64_t in simple-ext_1_true-valid-memsafety.i [2018-04-11 16:19:04,847 INFO L230 ultiparseSymbolTable]: Global variable declaration of __U_MULTI_fsimple_ext___true_valid_memsafety_i____sig_atomic_t in simple-ext_1_true-valid-memsafety.i [2018-04-11 16:19:04,847 INFO L230 ultiparseSymbolTable]: Global variable declaration of __U_MULTI_fsimple_ext___true_valid_memsafety_i__pthread_attr_t in simple-ext_1_true-valid-memsafety.i [2018-04-11 16:19:04,847 INFO L230 ultiparseSymbolTable]: Global variable declaration of __U_MULTI_fsimple_ext___true_valid_memsafety_i__nlink_t in simple-ext_1_true-valid-memsafety.i [2018-04-11 16:19:04,848 INFO L230 ultiparseSymbolTable]: Global variable declaration of __U_MULTI_fsimple_ext___true_valid_memsafety_i__wchar_t in simple-ext_1_true-valid-memsafety.i [2018-04-11 16:19:04,848 INFO L230 ultiparseSymbolTable]: Global variable declaration of __U_MULTI_fsimple_ext___true_valid_memsafety_i____swblk_t in simple-ext_1_true-valid-memsafety.i [2018-04-11 16:19:04,848 INFO L230 ultiparseSymbolTable]: Global variable declaration of __U_MULTI_fsimple_ext___true_valid_memsafety_i____fsblkcnt64_t in simple-ext_1_true-valid-memsafety.i [2018-04-11 16:19:04,848 INFO L230 ultiparseSymbolTable]: Global variable declaration of __U_MULTI_fsimple_ext___true_valid_memsafety_i__loff_t in simple-ext_1_true-valid-memsafety.i [2018-04-11 16:19:04,848 INFO L230 ultiparseSymbolTable]: Global variable declaration of __U_MULTI_fsimple_ext___true_valid_memsafety_i__uint in simple-ext_1_true-valid-memsafety.i [2018-04-11 16:19:04,848 INFO L230 ultiparseSymbolTable]: Global variable declaration of __U_MULTI_fsimple_ext___true_valid_memsafety_i____uid_t in simple-ext_1_true-valid-memsafety.i [2018-04-11 16:19:04,848 INFO L230 ultiparseSymbolTable]: Global variable declaration of __U_MULTI_fsimple_ext___true_valid_memsafety_i__ssize_t in simple-ext_1_true-valid-memsafety.i [2018-04-11 16:19:04,848 INFO L230 ultiparseSymbolTable]: Global variable declaration of __U_MULTI_fsimple_ext___true_valid_memsafety_i____int64_t in simple-ext_1_true-valid-memsafety.i [2018-04-11 16:19:04,848 INFO L230 ultiparseSymbolTable]: Global variable declaration of __U_MULTI_fsimple_ext___true_valid_memsafety_i____blkcnt64_t in simple-ext_1_true-valid-memsafety.i [2018-04-11 16:19:04,848 INFO L230 ultiparseSymbolTable]: Global variable declaration of __U_MULTI_fsimple_ext___true_valid_memsafety_i__pthread_condattr_t in simple-ext_1_true-valid-memsafety.i [2018-04-11 16:19:04,848 INFO L230 ultiparseSymbolTable]: Global variable declaration of __U_MULTI_fsimple_ext___true_valid_memsafety_i__int32_t in simple-ext_1_true-valid-memsafety.i [2018-04-11 16:19:04,849 INFO L230 ultiparseSymbolTable]: Global variable declaration of __U_MULTI_fsimple_ext___true_valid_memsafety_i____nlink_t in simple-ext_1_true-valid-memsafety.i [2018-04-11 16:19:04,849 INFO L230 ultiparseSymbolTable]: Global variable declaration of __U_MULTI_fsimple_ext___true_valid_memsafety_i____daddr_t in simple-ext_1_true-valid-memsafety.i [2018-04-11 16:19:04,849 INFO L230 ultiparseSymbolTable]: Global variable declaration of __U_MULTI_fsimple_ext___true_valid_memsafety_i__timer_t in simple-ext_1_true-valid-memsafety.i [2018-04-11 16:19:04,849 INFO L230 ultiparseSymbolTable]: Global variable declaration of __U_MULTI_fsimple_ext___true_valid_memsafety_i____fd_mask in simple-ext_1_true-valid-memsafety.i [2018-04-11 16:19:04,849 INFO L230 ultiparseSymbolTable]: Global variable declaration of __U_MULTI_fsimple_ext___true_valid_memsafety_i__fsid_t in simple-ext_1_true-valid-memsafety.i [2018-04-11 16:19:04,849 INFO L230 ultiparseSymbolTable]: Global variable declaration of __U_MULTI_fsimple_ext___true_valid_memsafety_i____ssize_t in simple-ext_1_true-valid-memsafety.i [2018-04-11 16:19:04,849 INFO L230 ultiparseSymbolTable]: Global variable declaration of __U_MULTI_fsimple_ext___true_valid_memsafety_i____int8_t in simple-ext_1_true-valid-memsafety.i [2018-04-11 16:19:04,849 INFO L230 ultiparseSymbolTable]: Global variable declaration of __U_MULTI_fsimple_ext___true_valid_memsafety_i__clockid_t in simple-ext_1_true-valid-memsafety.i [2018-04-11 16:19:04,849 INFO L230 ultiparseSymbolTable]: Global variable declaration of __U_MULTI_fsimple_ext___true_valid_memsafety_i____loff_t in simple-ext_1_true-valid-memsafety.i [2018-04-11 16:19:04,849 INFO L230 ultiparseSymbolTable]: Global variable declaration of __U_MULTI_fsimple_ext___true_valid_memsafety_i____clock_t in simple-ext_1_true-valid-memsafety.i [2018-04-11 16:19:04,849 INFO L230 ultiparseSymbolTable]: Global variable declaration of __U_MULTI_fsimple_ext___true_valid_memsafety_i__u_int8_t in simple-ext_1_true-valid-memsafety.i [2018-04-11 16:19:04,849 INFO L230 ultiparseSymbolTable]: Global variable declaration of __U_MULTI_fsimple_ext___true_valid_memsafety_i__pthread_t in simple-ext_1_true-valid-memsafety.i [2018-04-11 16:19:04,850 INFO L230 ultiparseSymbolTable]: Global variable declaration of __U_MULTI_fsimple_ext___true_valid_memsafety_i__pthread_mutexattr_t in simple-ext_1_true-valid-memsafety.i [2018-04-11 16:19:04,850 INFO L230 ultiparseSymbolTable]: Global variable declaration of __U_MULTI_fsimple_ext___true_valid_memsafety_i____pid_t in simple-ext_1_true-valid-memsafety.i [2018-04-11 16:19:04,850 INFO L230 ultiparseSymbolTable]: Global variable declaration of __U_MULTI_fsimple_ext___true_valid_memsafety_i____timer_t in simple-ext_1_true-valid-memsafety.i [2018-04-11 16:19:04,850 INFO L230 ultiparseSymbolTable]: Global variable declaration of __U_MULTI_fsimple_ext___true_valid_memsafety_i____u_short in simple-ext_1_true-valid-memsafety.i [2018-04-11 16:19:04,850 INFO L230 ultiparseSymbolTable]: Global variable declaration of __U_MULTI_fsimple_ext___true_valid_memsafety_i____sigset_t in simple-ext_1_true-valid-memsafety.i [2018-04-11 16:19:04,850 INFO L230 ultiparseSymbolTable]: Global variable declaration of __U_MULTI_fsimple_ext___true_valid_memsafety_i____ino_t in simple-ext_1_true-valid-memsafety.i [2018-04-11 16:19:04,850 INFO L230 ultiparseSymbolTable]: Global variable declaration of __U_MULTI_fsimple_ext___true_valid_memsafety_i__u_int in simple-ext_1_true-valid-memsafety.i [2018-04-11 16:19:04,850 INFO L230 ultiparseSymbolTable]: Global variable declaration of __U_MULTI_fsimple_ext___true_valid_memsafety_i____mode_t in simple-ext_1_true-valid-memsafety.i [2018-04-11 16:19:04,850 INFO L230 ultiparseSymbolTable]: Global variable declaration of __U_MULTI_fsimple_ext___true_valid_memsafety_i__suseconds_t in simple-ext_1_true-valid-memsafety.i [2018-04-11 16:19:04,850 INFO L230 ultiparseSymbolTable]: Global variable declaration of __U_MULTI_fsimple_ext___true_valid_memsafety_i____quad_t in simple-ext_1_true-valid-memsafety.i [2018-04-11 16:19:04,850 INFO L230 ultiparseSymbolTable]: Global variable declaration of __U_MULTI_fsimple_ext___true_valid_memsafety_i____fsid_t in simple-ext_1_true-valid-memsafety.i [2018-04-11 16:19:04,850 INFO L230 ultiparseSymbolTable]: Global variable declaration of __U_MULTI_fsimple_ext___true_valid_memsafety_i__caddr_t in simple-ext_1_true-valid-memsafety.i [2018-04-11 16:19:04,851 INFO L230 ultiparseSymbolTable]: Global variable declaration of __U_MULTI_fsimple_ext___true_valid_memsafety_i____rlim_t in simple-ext_1_true-valid-memsafety.i [2018-04-11 16:19:04,851 INFO L230 ultiparseSymbolTable]: Global variable declaration of __U_MULTI_fsimple_ext___true_valid_memsafety_i__pid_t in simple-ext_1_true-valid-memsafety.i [2018-04-11 16:19:04,851 INFO L230 ultiparseSymbolTable]: Global variable declaration of __U_MULTI_fsimple_ext___true_valid_memsafety_i__u_long in simple-ext_1_true-valid-memsafety.i [2018-04-11 16:19:04,851 INFO L230 ultiparseSymbolTable]: Global variable declaration of __U_MULTI_fsimple_ext___true_valid_memsafety_i__pthread_barrier_t in simple-ext_1_true-valid-memsafety.i [2018-04-11 16:19:04,851 INFO L230 ultiparseSymbolTable]: Global variable declaration of __U_MULTI_fsimple_ext___true_valid_memsafety_i____u_quad_t in simple-ext_1_true-valid-memsafety.i [2018-04-11 16:19:04,851 INFO L230 ultiparseSymbolTable]: Global variable declaration of __U_MULTI_fsimple_ext___true_valid_memsafety_i____suseconds_t in simple-ext_1_true-valid-memsafety.i [2018-04-11 16:19:04,851 INFO L230 ultiparseSymbolTable]: Global variable declaration of __U_MULTI_fsimple_ext___true_valid_memsafety_i__gid_t in simple-ext_1_true-valid-memsafety.i [2018-04-11 16:19:04,851 INFO L230 ultiparseSymbolTable]: Global variable declaration of __U_MULTI_fsimple_ext___true_valid_memsafety_i__List in simple-ext_1_true-valid-memsafety.i [2018-04-11 16:19:04,851 INFO L230 ultiparseSymbolTable]: Global variable declaration of __U_MULTI_fsimple_ext___true_valid_memsafety_i__off_t in simple-ext_1_true-valid-memsafety.i [2018-04-11 16:19:04,851 INFO L230 ultiparseSymbolTable]: Global variable declaration of __U_MULTI_fsimple_ext___true_valid_memsafety_i____int16_t in simple-ext_1_true-valid-memsafety.i [2018-04-11 16:19:04,851 INFO L230 ultiparseSymbolTable]: Global variable declaration of __U_MULTI_fsimple_ext___true_valid_memsafety_i__u_short in simple-ext_1_true-valid-memsafety.i [2018-04-11 16:19:04,851 INFO L230 ultiparseSymbolTable]: Global variable declaration of __U_MULTI_fsimple_ext___true_valid_memsafety_i____uint32_t in simple-ext_1_true-valid-memsafety.i [2018-04-11 16:19:04,851 INFO L230 ultiparseSymbolTable]: Global variable declaration of __U_MULTI_fsimple_ext___true_valid_memsafety_i__uid_t in simple-ext_1_true-valid-memsafety.i [2018-04-11 16:19:04,851 INFO L230 ultiparseSymbolTable]: Global variable declaration of __U_MULTI_fsimple_ext___true_valid_memsafety_i__lldiv_t in simple-ext_1_true-valid-memsafety.i [2018-04-11 16:19:04,851 INFO L230 ultiparseSymbolTable]: Global variable declaration of __U_MULTI_fsimple_ext___true_valid_memsafety_i____socklen_t in simple-ext_1_true-valid-memsafety.i [2018-04-11 16:19:04,851 INFO L230 ultiparseSymbolTable]: Global variable declaration of __U_MULTI_fsimple_ext___true_valid_memsafety_i__quad_t in simple-ext_1_true-valid-memsafety.i [2018-04-11 16:19:04,851 INFO L230 ultiparseSymbolTable]: Global variable declaration of __U_MULTI_fsimple_ext___true_valid_memsafety_i____pthread_list_t in simple-ext_1_true-valid-memsafety.i [2018-04-11 16:19:04,851 INFO L230 ultiparseSymbolTable]: Global variable declaration of __U_MULTI_fsimple_ext___true_valid_memsafety_i__int16_t in simple-ext_1_true-valid-memsafety.i [2018-04-11 16:19:04,851 INFO L230 ultiparseSymbolTable]: Global variable declaration of __U_MULTI_fsimple_ext___true_valid_memsafety_i__u_int16_t in simple-ext_1_true-valid-memsafety.i [2018-04-11 16:19:04,851 INFO L230 ultiparseSymbolTable]: Global variable declaration of __U_MULTI_fsimple_ext___true_valid_memsafety_i__blkcnt_t in simple-ext_1_true-valid-memsafety.i [2018-04-11 16:19:04,852 INFO L230 ultiparseSymbolTable]: Global variable declaration of __U_MULTI_fsimple_ext___true_valid_memsafety_i__blksize_t in simple-ext_1_true-valid-memsafety.i [2018-04-11 16:19:04,852 INFO L230 ultiparseSymbolTable]: Global variable declaration of __U_MULTI_fsimple_ext___true_valid_memsafety_i__pthread_spinlock_t in simple-ext_1_true-valid-memsafety.i [2018-04-11 16:19:04,852 INFO L230 ultiparseSymbolTable]: Global variable declaration of __U_MULTI_fsimple_ext___true_valid_memsafety_i____clockid_t in simple-ext_1_true-valid-memsafety.i [2018-04-11 16:19:04,852 INFO L230 ultiparseSymbolTable]: Global variable declaration of __U_MULTI_fsimple_ext___true_valid_memsafety_i____intptr_t in simple-ext_1_true-valid-memsafety.i [2018-04-11 16:19:04,852 INFO L230 ultiparseSymbolTable]: Global variable declaration of __U_MULTI_fsimple_ext___true_valid_memsafety_i____u_long in simple-ext_1_true-valid-memsafety.i [2018-04-11 16:19:04,852 INFO L230 ultiparseSymbolTable]: Global variable declaration of __U_MULTI_fsimple_ext___true_valid_memsafety_i__div_t in simple-ext_1_true-valid-memsafety.i [2018-04-11 16:19:04,852 INFO L230 ultiparseSymbolTable]: Global variable declaration of __U_MULTI_fsimple_ext___true_valid_memsafety_i__u_char in simple-ext_1_true-valid-memsafety.i [2018-04-11 16:19:04,852 INFO L230 ultiparseSymbolTable]: Global variable declaration of __U_MULTI_fsimple_ext___true_valid_memsafety_i__pthread_cond_t in simple-ext_1_true-valid-memsafety.i [2018-04-11 16:19:04,852 INFO L230 ultiparseSymbolTable]: Global variable declaration of __U_MULTI_fsimple_ext___true_valid_memsafety_i__size_t in simple-ext_1_true-valid-memsafety.i [2018-04-11 16:19:04,864 INFO L330 CDTParser]: Deleted temporary CDT project at /home/ultimate/work/ultimate/releaseScripts/default/UAutomizer-linux/data/FLAG2e10af668 [2018-04-11 16:19:04,868 INFO L304 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2018-04-11 16:19:04,868 INFO L131 ToolchainWalker]: Walking toolchain with 4 elements. [2018-04-11 16:19:04,869 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2018-04-11 16:19:04,869 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2018-04-11 16:19:04,873 INFO L276 PluginConnector]: CACSL2BoogieTranslator initialized [2018-04-11 16:19:04,873 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 11.04 04:19:04" (1/1) ... [2018-04-11 16:19:04,875 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@627e99eb and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.04 04:19:04, skipping insertion in model container [2018-04-11 16:19:04,875 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 11.04 04:19:04" (1/1) ... [2018-04-11 16:19:04,886 INFO L167 Dispatcher]: Using SV-COMP mode [2018-04-11 16:19:04,909 INFO L167 Dispatcher]: Using SV-COMP mode [2018-04-11 16:19:05,054 INFO L175 PostProcessor]: Settings: Checked method=main [2018-04-11 16:19:05,092 INFO L175 PostProcessor]: Settings: Checked method=main [2018-04-11 16:19:05,098 INFO L100 SccComputation]: Graph consists of 0 InCaSumBalls and 113 non ball SCCs. Number of states in SCCs 113. [2018-04-11 16:19:05,131 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.04 04:19:05 WrapperNode [2018-04-11 16:19:05,132 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2018-04-11 16:19:05,132 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2018-04-11 16:19:05,132 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2018-04-11 16:19:05,132 INFO L276 PluginConnector]: Boogie Preprocessor initialized [2018-04-11 16:19:05,144 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.04 04:19:05" (1/1) ... [2018-04-11 16:19:05,144 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.04 04:19:05" (1/1) ... [2018-04-11 16:19:05,155 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.04 04:19:05" (1/1) ... [2018-04-11 16:19:05,155 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.04 04:19:05" (1/1) ... [2018-04-11 16:19:05,163 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.04 04:19:05" (1/1) ... [2018-04-11 16:19:05,167 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.04 04:19:05" (1/1) ... [2018-04-11 16:19:05,169 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.04 04:19:05" (1/1) ... [2018-04-11 16:19:05,172 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2018-04-11 16:19:05,173 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2018-04-11 16:19:05,173 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2018-04-11 16:19:05,173 INFO L276 PluginConnector]: RCFGBuilder initialized [2018-04-11 16:19:05,174 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.04 04:19:05" (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 16:19:05,275 INFO L136 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2018-04-11 16:19:05,275 INFO L136 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2018-04-11 16:19:05,275 INFO L136 BoogieDeclarations]: Found implementation of procedure __U_MULTI_fsimple_ext___true_valid_memsafety_i__exit [2018-04-11 16:19:05,275 INFO L136 BoogieDeclarations]: Found implementation of procedure main [2018-04-11 16:19:05,275 INFO L128 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_int [2018-04-11 16:19:05,275 INFO L128 BoogieDeclarations]: Found specification of procedure __VERIFIER_error [2018-04-11 16:19:05,275 INFO L128 BoogieDeclarations]: Found specification of procedure __ctype_get_mb_cur_max [2018-04-11 16:19:05,276 INFO L128 BoogieDeclarations]: Found specification of procedure atof [2018-04-11 16:19:05,276 INFO L128 BoogieDeclarations]: Found specification of procedure atoi [2018-04-11 16:19:05,276 INFO L128 BoogieDeclarations]: Found specification of procedure atol [2018-04-11 16:19:05,276 INFO L128 BoogieDeclarations]: Found specification of procedure atoll [2018-04-11 16:19:05,276 INFO L128 BoogieDeclarations]: Found specification of procedure strtod [2018-04-11 16:19:05,276 INFO L128 BoogieDeclarations]: Found specification of procedure strtof [2018-04-11 16:19:05,276 INFO L128 BoogieDeclarations]: Found specification of procedure strtold [2018-04-11 16:19:05,276 INFO L128 BoogieDeclarations]: Found specification of procedure strtol [2018-04-11 16:19:05,276 INFO L128 BoogieDeclarations]: Found specification of procedure strtoul [2018-04-11 16:19:05,276 INFO L128 BoogieDeclarations]: Found specification of procedure strtoq [2018-04-11 16:19:05,277 INFO L128 BoogieDeclarations]: Found specification of procedure strtouq [2018-04-11 16:19:05,277 INFO L128 BoogieDeclarations]: Found specification of procedure strtoll [2018-04-11 16:19:05,277 INFO L128 BoogieDeclarations]: Found specification of procedure strtoull [2018-04-11 16:19:05,277 INFO L128 BoogieDeclarations]: Found specification of procedure l64a [2018-04-11 16:19:05,277 INFO L128 BoogieDeclarations]: Found specification of procedure a64l [2018-04-11 16:19:05,277 INFO L128 BoogieDeclarations]: Found specification of procedure select [2018-04-11 16:19:05,277 INFO L128 BoogieDeclarations]: Found specification of procedure pselect [2018-04-11 16:19:05,277 INFO L128 BoogieDeclarations]: Found specification of procedure gnu_dev_major [2018-04-11 16:19:05,277 INFO L128 BoogieDeclarations]: Found specification of procedure gnu_dev_minor [2018-04-11 16:19:05,278 INFO L128 BoogieDeclarations]: Found specification of procedure gnu_dev_makedev [2018-04-11 16:19:05,278 INFO L128 BoogieDeclarations]: Found specification of procedure random [2018-04-11 16:19:05,278 INFO L128 BoogieDeclarations]: Found specification of procedure srandom [2018-04-11 16:19:05,278 INFO L128 BoogieDeclarations]: Found specification of procedure initstate [2018-04-11 16:19:05,278 INFO L128 BoogieDeclarations]: Found specification of procedure setstate [2018-04-11 16:19:05,278 INFO L128 BoogieDeclarations]: Found specification of procedure random_r [2018-04-11 16:19:05,278 INFO L128 BoogieDeclarations]: Found specification of procedure srandom_r [2018-04-11 16:19:05,278 INFO L128 BoogieDeclarations]: Found specification of procedure initstate_r [2018-04-11 16:19:05,279 INFO L128 BoogieDeclarations]: Found specification of procedure setstate_r [2018-04-11 16:19:05,279 INFO L128 BoogieDeclarations]: Found specification of procedure rand [2018-04-11 16:19:05,279 INFO L128 BoogieDeclarations]: Found specification of procedure srand [2018-04-11 16:19:05,279 INFO L128 BoogieDeclarations]: Found specification of procedure rand_r [2018-04-11 16:19:05,279 INFO L128 BoogieDeclarations]: Found specification of procedure drand48 [2018-04-11 16:19:05,279 INFO L128 BoogieDeclarations]: Found specification of procedure erand48 [2018-04-11 16:19:05,279 INFO L128 BoogieDeclarations]: Found specification of procedure lrand48 [2018-04-11 16:19:05,279 INFO L128 BoogieDeclarations]: Found specification of procedure nrand48 [2018-04-11 16:19:05,280 INFO L128 BoogieDeclarations]: Found specification of procedure mrand48 [2018-04-11 16:19:05,280 INFO L128 BoogieDeclarations]: Found specification of procedure jrand48 [2018-04-11 16:19:05,280 INFO L128 BoogieDeclarations]: Found specification of procedure srand48 [2018-04-11 16:19:05,280 INFO L128 BoogieDeclarations]: Found specification of procedure seed48 [2018-04-11 16:19:05,280 INFO L128 BoogieDeclarations]: Found specification of procedure lcong48 [2018-04-11 16:19:05,280 INFO L128 BoogieDeclarations]: Found specification of procedure drand48_r [2018-04-11 16:19:05,280 INFO L128 BoogieDeclarations]: Found specification of procedure erand48_r [2018-04-11 16:19:05,280 INFO L128 BoogieDeclarations]: Found specification of procedure lrand48_r [2018-04-11 16:19:05,280 INFO L128 BoogieDeclarations]: Found specification of procedure nrand48_r [2018-04-11 16:19:05,281 INFO L128 BoogieDeclarations]: Found specification of procedure mrand48_r [2018-04-11 16:19:05,281 INFO L128 BoogieDeclarations]: Found specification of procedure jrand48_r [2018-04-11 16:19:05,281 INFO L128 BoogieDeclarations]: Found specification of procedure srand48_r [2018-04-11 16:19:05,281 INFO L128 BoogieDeclarations]: Found specification of procedure seed48_r [2018-04-11 16:19:05,281 INFO L128 BoogieDeclarations]: Found specification of procedure lcong48_r [2018-04-11 16:19:05,281 INFO L128 BoogieDeclarations]: Found specification of procedure malloc [2018-04-11 16:19:05,281 INFO L128 BoogieDeclarations]: Found specification of procedure calloc [2018-04-11 16:19:05,281 INFO L128 BoogieDeclarations]: Found specification of procedure realloc [2018-04-11 16:19:05,281 INFO L128 BoogieDeclarations]: Found specification of procedure free [2018-04-11 16:19:05,282 INFO L128 BoogieDeclarations]: Found specification of procedure cfree [2018-04-11 16:19:05,282 INFO L128 BoogieDeclarations]: Found specification of procedure alloca [2018-04-11 16:19:05,282 INFO L128 BoogieDeclarations]: Found specification of procedure valloc [2018-04-11 16:19:05,282 INFO L128 BoogieDeclarations]: Found specification of procedure posix_memalign [2018-04-11 16:19:05,282 INFO L128 BoogieDeclarations]: Found specification of procedure abort [2018-04-11 16:19:05,282 INFO L128 BoogieDeclarations]: Found specification of procedure atexit [2018-04-11 16:19:05,282 INFO L128 BoogieDeclarations]: Found specification of procedure on_exit [2018-04-11 16:19:05,282 INFO L128 BoogieDeclarations]: Found specification of procedure __U_MULTI_fsimple_ext___true_valid_memsafety_i__exit [2018-04-11 16:19:05,282 INFO L128 BoogieDeclarations]: Found specification of procedure _Exit [2018-04-11 16:19:05,282 INFO L128 BoogieDeclarations]: Found specification of procedure getenv [2018-04-11 16:19:05,283 INFO L128 BoogieDeclarations]: Found specification of procedure __secure_getenv [2018-04-11 16:19:05,283 INFO L128 BoogieDeclarations]: Found specification of procedure putenv [2018-04-11 16:19:05,283 INFO L128 BoogieDeclarations]: Found specification of procedure setenv [2018-04-11 16:19:05,283 INFO L128 BoogieDeclarations]: Found specification of procedure unsetenv [2018-04-11 16:19:05,283 INFO L128 BoogieDeclarations]: Found specification of procedure clearenv [2018-04-11 16:19:05,283 INFO L128 BoogieDeclarations]: Found specification of procedure mktemp [2018-04-11 16:19:05,283 INFO L128 BoogieDeclarations]: Found specification of procedure mkstemp [2018-04-11 16:19:05,283 INFO L128 BoogieDeclarations]: Found specification of procedure mkstemps [2018-04-11 16:19:05,283 INFO L128 BoogieDeclarations]: Found specification of procedure mkdtemp [2018-04-11 16:19:05,283 INFO L128 BoogieDeclarations]: Found specification of procedure system [2018-04-11 16:19:05,284 INFO L128 BoogieDeclarations]: Found specification of procedure realpath [2018-04-11 16:19:05,284 INFO L128 BoogieDeclarations]: Found specification of procedure bsearch [2018-04-11 16:19:05,284 INFO L128 BoogieDeclarations]: Found specification of procedure qsort [2018-04-11 16:19:05,284 INFO L128 BoogieDeclarations]: Found specification of procedure abs [2018-04-11 16:19:05,284 INFO L128 BoogieDeclarations]: Found specification of procedure labs [2018-04-11 16:19:05,284 INFO L128 BoogieDeclarations]: Found specification of procedure llabs [2018-04-11 16:19:05,284 INFO L128 BoogieDeclarations]: Found specification of procedure div [2018-04-11 16:19:05,284 INFO L128 BoogieDeclarations]: Found specification of procedure ldiv [2018-04-11 16:19:05,284 INFO L128 BoogieDeclarations]: Found specification of procedure lldiv [2018-04-11 16:19:05,284 INFO L128 BoogieDeclarations]: Found specification of procedure ecvt [2018-04-11 16:19:05,284 INFO L128 BoogieDeclarations]: Found specification of procedure fcvt [2018-04-11 16:19:05,285 INFO L128 BoogieDeclarations]: Found specification of procedure gcvt [2018-04-11 16:19:05,285 INFO L128 BoogieDeclarations]: Found specification of procedure qecvt [2018-04-11 16:19:05,285 INFO L128 BoogieDeclarations]: Found specification of procedure qfcvt [2018-04-11 16:19:05,285 INFO L128 BoogieDeclarations]: Found specification of procedure qgcvt [2018-04-11 16:19:05,285 INFO L128 BoogieDeclarations]: Found specification of procedure ecvt_r [2018-04-11 16:19:05,285 INFO L128 BoogieDeclarations]: Found specification of procedure fcvt_r [2018-04-11 16:19:05,285 INFO L128 BoogieDeclarations]: Found specification of procedure qecvt_r [2018-04-11 16:19:05,285 INFO L128 BoogieDeclarations]: Found specification of procedure qfcvt_r [2018-04-11 16:19:05,285 INFO L128 BoogieDeclarations]: Found specification of procedure mblen [2018-04-11 16:19:05,285 INFO L128 BoogieDeclarations]: Found specification of procedure mbtowc [2018-04-11 16:19:05,286 INFO L128 BoogieDeclarations]: Found specification of procedure wctomb [2018-04-11 16:19:05,286 INFO L128 BoogieDeclarations]: Found specification of procedure mbstowcs [2018-04-11 16:19:05,286 INFO L128 BoogieDeclarations]: Found specification of procedure wcstombs [2018-04-11 16:19:05,286 INFO L128 BoogieDeclarations]: Found specification of procedure rpmatch [2018-04-11 16:19:05,286 INFO L128 BoogieDeclarations]: Found specification of procedure getsubopt [2018-04-11 16:19:05,286 INFO L128 BoogieDeclarations]: Found specification of procedure getloadavg [2018-04-11 16:19:05,286 INFO L128 BoogieDeclarations]: Found specification of procedure main [2018-04-11 16:19:05,286 INFO L128 BoogieDeclarations]: Found specification of procedure #Ultimate.alloc [2018-04-11 16:19:05,286 INFO L128 BoogieDeclarations]: Found specification of procedure write~int [2018-04-11 16:19:05,286 INFO L128 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2018-04-11 16:19:05,287 INFO L128 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2018-04-11 16:19:05,287 INFO L128 BoogieDeclarations]: Found specification of procedure read~int [2018-04-11 16:19:05,287 INFO L128 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2018-04-11 16:19:05,287 INFO L128 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2018-04-11 16:19:05,287 INFO L128 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2018-04-11 16:19:05,287 INFO L128 BoogieDeclarations]: Found specification of procedure write~unchecked~int [2018-04-11 16:19:05,588 INFO L259 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2018-04-11 16:19:05,588 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 11.04 04:19:05 BoogieIcfgContainer [2018-04-11 16:19:05,588 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2018-04-11 16:19:05,589 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2018-04-11 16:19:05,589 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2018-04-11 16:19:05,591 INFO L276 PluginConnector]: TraceAbstraction initialized [2018-04-11 16:19:05,591 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 11.04 04:19:04" (1/3) ... [2018-04-11 16:19:05,592 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@257e137b and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 11.04 04:19:05, skipping insertion in model container [2018-04-11 16:19:05,592 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.04 04:19:05" (2/3) ... [2018-04-11 16:19:05,592 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@257e137b and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 11.04 04:19:05, skipping insertion in model container [2018-04-11 16:19:05,592 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 11.04 04:19:05" (3/3) ... [2018-04-11 16:19:05,593 INFO L107 eAbstractionObserver]: Analyzing ICFG simple-ext_1_true-valid-memsafety.i [2018-04-11 16:19:05,601 INFO L131 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2018-04-11 16:19:05,606 INFO L143 ceAbstractionStarter]: Appying trace abstraction to program that has 19 error locations. [2018-04-11 16:19:05,635 INFO L128 ementStrategyFactory]: Using default assertion order modulation [2018-04-11 16:19:05,636 INFO L369 AbstractCegarLoop]: Interprodecural is true [2018-04-11 16:19:05,636 INFO L370 AbstractCegarLoop]: Hoare is false [2018-04-11 16:19:05,636 INFO L371 AbstractCegarLoop]: Compute interpolants for FPandBP [2018-04-11 16:19:05,636 INFO L372 AbstractCegarLoop]: Backedges is TWOTRACK [2018-04-11 16:19:05,636 INFO L373 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2018-04-11 16:19:05,636 INFO L374 AbstractCegarLoop]: Difference is false [2018-04-11 16:19:05,637 INFO L375 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2018-04-11 16:19:05,637 INFO L380 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2018-04-11 16:19:05,637 INFO L87 2NestedWordAutomaton]: Mode: main mode - execution starts in main procedure [2018-04-11 16:19:05,645 INFO L276 IsEmpty]: Start isEmpty. Operand 67 states. [2018-04-11 16:19:05,650 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 12 [2018-04-11 16:19:05,650 INFO L347 BasicCegarLoop]: Found error trace [2018-04-11 16:19:05,650 INFO L355 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-04-11 16:19:05,651 INFO L408 AbstractCegarLoop]: === Iteration 1 === [mainErr5RequiresViolation, mainErr13RequiresViolation, mainErr1RequiresViolation, mainErr9RequiresViolation, mainErr0RequiresViolation, mainErr18EnsuresViolationMEMORY_LEAK, mainErr17AssertViolationMEMORY_FREE, mainErr3RequiresViolation, mainErr7RequiresViolation, mainErr11RequiresViolation, mainErr8RequiresViolation, mainErr10RequiresViolation, mainErr15RequiresViolation, mainErr2RequiresViolation, mainErr4RequiresViolation, mainErr12RequiresViolation, mainErr6RequiresViolation, mainErr16AssertViolationMEMORY_FREE, mainErr14RequiresViolation]=== [2018-04-11 16:19:05,653 INFO L82 PathProgramCache]: Analyzing trace with hash -1445061309, now seen corresponding path program 1 times [2018-04-11 16:19:05,654 INFO L213 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS_NO_ARRAY [2018-04-11 16:19:05,654 INFO L68 tionRefinementEngine]: Using refinement strategy SmtInterpolRefinementStrategy [2018-04-11 16:19:05,690 INFO L119 rtionOrderModulation]: Craig nested/tree interpolation forces the following order [2018-04-11 16:19:05,690 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-04-11 16:19:05,690 INFO L119 rtionOrderModulation]: Craig nested/tree interpolation forces the following order [2018-04-11 16:19:05,715 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-04-11 16:19:05,722 WARN L137 erpolLogProxyWrapper]: Using partial proofs (cut at CNF-level). Set option :produce-proofs to true to get complete proofs. [2018-04-11 16:19:05,745 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 16:19:05,747 INFO L320 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-04-11 16:19:05,747 INFO L335 seRefinementStrategy]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2018-04-11 16:19:05,748 INFO L442 AbstractCegarLoop]: Interpolant automaton has 2 states [2018-04-11 16:19:05,758 INFO L132 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2018-04-11 16:19:05,759 INFO L133 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2018-04-11 16:19:05,761 INFO L87 Difference]: Start difference. First operand 67 states. Second operand 2 states. [2018-04-11 16:19:05,779 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-04-11 16:19:05,779 INFO L93 Difference]: Finished difference Result 67 states and 71 transitions. [2018-04-11 16:19:05,780 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2018-04-11 16:19:05,780 INFO L78 Accepts]: Start accepts. Automaton has 2 states. Word has length 11 [2018-04-11 16:19:05,781 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-04-11 16:19:05,785 INFO L225 Difference]: With dead ends: 67 [2018-04-11 16:19:05,785 INFO L226 Difference]: Without dead ends: 59 [2018-04-11 16:19:05,787 INFO L567 BasicCegarLoop]: 0 DeclaredPredicates, 2 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 0 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2018-04-11 16:19:05,798 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 59 states. [2018-04-11 16:19:05,807 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 59 to 59. [2018-04-11 16:19:05,808 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 59 states. [2018-04-11 16:19:05,809 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 59 states to 59 states and 62 transitions. [2018-04-11 16:19:05,810 INFO L78 Accepts]: Start accepts. Automaton has 59 states and 62 transitions. Word has length 11 [2018-04-11 16:19:05,811 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-04-11 16:19:05,811 INFO L459 AbstractCegarLoop]: Abstraction has 59 states and 62 transitions. [2018-04-11 16:19:05,811 INFO L460 AbstractCegarLoop]: Interpolant automaton has 2 states. [2018-04-11 16:19:05,811 INFO L276 IsEmpty]: Start isEmpty. Operand 59 states and 62 transitions. [2018-04-11 16:19:05,811 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 15 [2018-04-11 16:19:05,811 INFO L347 BasicCegarLoop]: Found error trace [2018-04-11 16:19:05,812 INFO L355 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-04-11 16:19:05,812 INFO L408 AbstractCegarLoop]: === Iteration 2 === [mainErr5RequiresViolation, mainErr13RequiresViolation, mainErr1RequiresViolation, mainErr9RequiresViolation, mainErr0RequiresViolation, mainErr18EnsuresViolationMEMORY_LEAK, mainErr17AssertViolationMEMORY_FREE, mainErr3RequiresViolation, mainErr7RequiresViolation, mainErr11RequiresViolation, mainErr8RequiresViolation, mainErr10RequiresViolation, mainErr15RequiresViolation, mainErr2RequiresViolation, mainErr4RequiresViolation, mainErr12RequiresViolation, mainErr6RequiresViolation, mainErr16AssertViolationMEMORY_FREE, mainErr14RequiresViolation]=== [2018-04-11 16:19:05,812 INFO L82 PathProgramCache]: Analyzing trace with hash -1396666920, now seen corresponding path program 1 times [2018-04-11 16:19:05,812 INFO L213 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS_NO_ARRAY [2018-04-11 16:19:05,812 INFO L68 tionRefinementEngine]: Using refinement strategy SmtInterpolRefinementStrategy [2018-04-11 16:19:05,813 INFO L119 rtionOrderModulation]: Craig nested/tree interpolation forces the following order [2018-04-11 16:19:05,813 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-04-11 16:19:05,813 INFO L119 rtionOrderModulation]: Craig nested/tree interpolation forces the following order [2018-04-11 16:19:05,827 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-04-11 16:19:05,827 WARN L137 erpolLogProxyWrapper]: Using partial proofs (cut at CNF-level). Set option :produce-proofs to true to get complete proofs. [2018-04-11 16:19:05,870 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 16:19:05,871 INFO L320 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-04-11 16:19:05,871 INFO L335 seRefinementStrategy]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2018-04-11 16:19:05,872 INFO L442 AbstractCegarLoop]: Interpolant automaton has 5 states [2018-04-11 16:19:05,872 INFO L132 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2018-04-11 16:19:05,873 INFO L133 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2018-04-11 16:19:05,873 INFO L87 Difference]: Start difference. First operand 59 states and 62 transitions. Second operand 5 states. [2018-04-11 16:19:05,993 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-04-11 16:19:05,993 INFO L93 Difference]: Finished difference Result 79 states and 85 transitions. [2018-04-11 16:19:05,993 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2018-04-11 16:19:05,993 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 14 [2018-04-11 16:19:05,993 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-04-11 16:19:05,994 INFO L225 Difference]: With dead ends: 79 [2018-04-11 16:19:05,994 INFO L226 Difference]: Without dead ends: 79 [2018-04-11 16:19:05,995 INFO L567 BasicCegarLoop]: 0 DeclaredPredicates, 6 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=17, Invalid=25, Unknown=0, NotChecked=0, Total=42 [2018-04-11 16:19:05,995 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 79 states. [2018-04-11 16:19:05,998 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 79 to 66. [2018-04-11 16:19:05,999 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 66 states. [2018-04-11 16:19:06,000 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 66 states to 66 states and 77 transitions. [2018-04-11 16:19:06,000 INFO L78 Accepts]: Start accepts. Automaton has 66 states and 77 transitions. Word has length 14 [2018-04-11 16:19:06,000 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-04-11 16:19:06,000 INFO L459 AbstractCegarLoop]: Abstraction has 66 states and 77 transitions. [2018-04-11 16:19:06,000 INFO L460 AbstractCegarLoop]: Interpolant automaton has 5 states. [2018-04-11 16:19:06,000 INFO L276 IsEmpty]: Start isEmpty. Operand 66 states and 77 transitions. [2018-04-11 16:19:06,001 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 15 [2018-04-11 16:19:06,001 INFO L347 BasicCegarLoop]: Found error trace [2018-04-11 16:19:06,001 INFO L355 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-04-11 16:19:06,001 INFO L408 AbstractCegarLoop]: === Iteration 3 === [mainErr5RequiresViolation, mainErr13RequiresViolation, mainErr1RequiresViolation, mainErr9RequiresViolation, mainErr0RequiresViolation, mainErr18EnsuresViolationMEMORY_LEAK, mainErr17AssertViolationMEMORY_FREE, mainErr3RequiresViolation, mainErr7RequiresViolation, mainErr11RequiresViolation, mainErr8RequiresViolation, mainErr10RequiresViolation, mainErr15RequiresViolation, mainErr2RequiresViolation, mainErr4RequiresViolation, mainErr12RequiresViolation, mainErr6RequiresViolation, mainErr16AssertViolationMEMORY_FREE, mainErr14RequiresViolation]=== [2018-04-11 16:19:06,001 INFO L82 PathProgramCache]: Analyzing trace with hash -1396666919, now seen corresponding path program 1 times [2018-04-11 16:19:06,001 INFO L213 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS_NO_ARRAY [2018-04-11 16:19:06,001 INFO L68 tionRefinementEngine]: Using refinement strategy SmtInterpolRefinementStrategy [2018-04-11 16:19:06,002 INFO L119 rtionOrderModulation]: Craig nested/tree interpolation forces the following order [2018-04-11 16:19:06,002 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-04-11 16:19:06,003 INFO L119 rtionOrderModulation]: Craig nested/tree interpolation forces the following order [2018-04-11 16:19:06,015 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-04-11 16:19:06,016 WARN L137 erpolLogProxyWrapper]: Using partial proofs (cut at CNF-level). Set option :produce-proofs to true to get complete proofs. [2018-04-11 16:19:06,064 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 16:19:06,064 INFO L320 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-04-11 16:19:06,064 INFO L335 seRefinementStrategy]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2018-04-11 16:19:06,065 INFO L442 AbstractCegarLoop]: Interpolant automaton has 5 states [2018-04-11 16:19:06,065 INFO L132 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2018-04-11 16:19:06,065 INFO L133 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2018-04-11 16:19:06,065 INFO L87 Difference]: Start difference. First operand 66 states and 77 transitions. Second operand 5 states. [2018-04-11 16:19:06,197 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-04-11 16:19:06,197 INFO L93 Difference]: Finished difference Result 86 states and 92 transitions. [2018-04-11 16:19:06,197 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2018-04-11 16:19:06,198 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 14 [2018-04-11 16:19:06,198 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-04-11 16:19:06,198 INFO L225 Difference]: With dead ends: 86 [2018-04-11 16:19:06,199 INFO L226 Difference]: Without dead ends: 86 [2018-04-11 16:19:06,199 INFO L567 BasicCegarLoop]: 0 DeclaredPredicates, 6 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=17, Invalid=25, Unknown=0, NotChecked=0, Total=42 [2018-04-11 16:19:06,199 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 86 states. [2018-04-11 16:19:06,203 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 86 to 76. [2018-04-11 16:19:06,203 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 76 states. [2018-04-11 16:19:06,204 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 76 states to 76 states and 83 transitions. [2018-04-11 16:19:06,204 INFO L78 Accepts]: Start accepts. Automaton has 76 states and 83 transitions. Word has length 14 [2018-04-11 16:19:06,205 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-04-11 16:19:06,205 INFO L459 AbstractCegarLoop]: Abstraction has 76 states and 83 transitions. [2018-04-11 16:19:06,205 INFO L460 AbstractCegarLoop]: Interpolant automaton has 5 states. [2018-04-11 16:19:06,205 INFO L276 IsEmpty]: Start isEmpty. Operand 76 states and 83 transitions. [2018-04-11 16:19:06,205 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 24 [2018-04-11 16:19:06,205 INFO L347 BasicCegarLoop]: Found error trace [2018-04-11 16:19:06,206 INFO L355 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-04-11 16:19:06,206 INFO L408 AbstractCegarLoop]: === Iteration 4 === [mainErr5RequiresViolation, mainErr13RequiresViolation, mainErr1RequiresViolation, mainErr9RequiresViolation, mainErr0RequiresViolation, mainErr18EnsuresViolationMEMORY_LEAK, mainErr17AssertViolationMEMORY_FREE, mainErr3RequiresViolation, mainErr7RequiresViolation, mainErr11RequiresViolation, mainErr8RequiresViolation, mainErr10RequiresViolation, mainErr15RequiresViolation, mainErr2RequiresViolation, mainErr4RequiresViolation, mainErr12RequiresViolation, mainErr6RequiresViolation, mainErr16AssertViolationMEMORY_FREE, mainErr14RequiresViolation]=== [2018-04-11 16:19:06,206 INFO L82 PathProgramCache]: Analyzing trace with hash 1581197642, now seen corresponding path program 1 times [2018-04-11 16:19:06,206 INFO L213 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS_NO_ARRAY [2018-04-11 16:19:06,206 INFO L68 tionRefinementEngine]: Using refinement strategy SmtInterpolRefinementStrategy [2018-04-11 16:19:06,207 INFO L119 rtionOrderModulation]: Craig nested/tree interpolation forces the following order [2018-04-11 16:19:06,207 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-04-11 16:19:06,207 INFO L119 rtionOrderModulation]: Craig nested/tree interpolation forces the following order [2018-04-11 16:19:06,218 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-04-11 16:19:06,219 WARN L137 erpolLogProxyWrapper]: Using partial proofs (cut at CNF-level). Set option :produce-proofs to true to get complete proofs. [2018-04-11 16:19:06,256 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 16:19:06,257 INFO L320 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-04-11 16:19:06,257 INFO L335 seRefinementStrategy]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2018-04-11 16:19:06,257 INFO L442 AbstractCegarLoop]: Interpolant automaton has 5 states [2018-04-11 16:19:06,257 INFO L132 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2018-04-11 16:19:06,258 INFO L133 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2018-04-11 16:19:06,258 INFO L87 Difference]: Start difference. First operand 76 states and 83 transitions. Second operand 5 states. [2018-04-11 16:19:06,342 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-04-11 16:19:06,342 INFO L93 Difference]: Finished difference Result 82 states and 87 transitions. [2018-04-11 16:19:06,342 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2018-04-11 16:19:06,342 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 23 [2018-04-11 16:19:06,342 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-04-11 16:19:06,343 INFO L225 Difference]: With dead ends: 82 [2018-04-11 16:19:06,343 INFO L226 Difference]: Without dead ends: 82 [2018-04-11 16:19:06,343 INFO L567 BasicCegarLoop]: 0 DeclaredPredicates, 7 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=17, Invalid=25, Unknown=0, NotChecked=0, Total=42 [2018-04-11 16:19:06,343 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 82 states. [2018-04-11 16:19:06,345 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 82 to 76. [2018-04-11 16:19:06,345 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 76 states. [2018-04-11 16:19:06,346 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 76 states to 76 states and 81 transitions. [2018-04-11 16:19:06,346 INFO L78 Accepts]: Start accepts. Automaton has 76 states and 81 transitions. Word has length 23 [2018-04-11 16:19:06,346 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-04-11 16:19:06,346 INFO L459 AbstractCegarLoop]: Abstraction has 76 states and 81 transitions. [2018-04-11 16:19:06,346 INFO L460 AbstractCegarLoop]: Interpolant automaton has 5 states. [2018-04-11 16:19:06,346 INFO L276 IsEmpty]: Start isEmpty. Operand 76 states and 81 transitions. [2018-04-11 16:19:06,347 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 26 [2018-04-11 16:19:06,347 INFO L347 BasicCegarLoop]: Found error trace [2018-04-11 16:19:06,347 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] [2018-04-11 16:19:06,347 INFO L408 AbstractCegarLoop]: === Iteration 5 === [mainErr5RequiresViolation, mainErr13RequiresViolation, mainErr1RequiresViolation, mainErr9RequiresViolation, mainErr0RequiresViolation, mainErr18EnsuresViolationMEMORY_LEAK, mainErr17AssertViolationMEMORY_FREE, mainErr3RequiresViolation, mainErr7RequiresViolation, mainErr11RequiresViolation, mainErr8RequiresViolation, mainErr10RequiresViolation, mainErr15RequiresViolation, mainErr2RequiresViolation, mainErr4RequiresViolation, mainErr12RequiresViolation, mainErr6RequiresViolation, mainErr16AssertViolationMEMORY_FREE, mainErr14RequiresViolation]=== [2018-04-11 16:19:06,347 INFO L82 PathProgramCache]: Analyzing trace with hash -710334693, now seen corresponding path program 1 times [2018-04-11 16:19:06,347 INFO L213 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS_NO_ARRAY [2018-04-11 16:19:06,347 INFO L68 tionRefinementEngine]: Using refinement strategy SmtInterpolRefinementStrategy [2018-04-11 16:19:06,348 INFO L119 rtionOrderModulation]: Craig nested/tree interpolation forces the following order [2018-04-11 16:19:06,348 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-04-11 16:19:06,348 INFO L119 rtionOrderModulation]: Craig nested/tree interpolation forces the following order [2018-04-11 16:19:06,358 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-04-11 16:19:06,358 WARN L137 erpolLogProxyWrapper]: Using partial proofs (cut at CNF-level). Set option :produce-proofs to true to get complete proofs. [2018-04-11 16:19:06,397 INFO L134 CoverageAnalysis]: Checked inductivity of 5 backedges. 5 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-04-11 16:19:06,397 INFO L320 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-04-11 16:19:06,397 INFO L335 seRefinementStrategy]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2018-04-11 16:19:06,398 INFO L442 AbstractCegarLoop]: Interpolant automaton has 7 states [2018-04-11 16:19:06,398 INFO L132 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2018-04-11 16:19:06,398 INFO L133 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2018-04-11 16:19:06,398 INFO L87 Difference]: Start difference. First operand 76 states and 81 transitions. Second operand 7 states. [2018-04-11 16:19:06,545 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-04-11 16:19:06,545 INFO L93 Difference]: Finished difference Result 97 states and 103 transitions. [2018-04-11 16:19:06,545 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2018-04-11 16:19:06,545 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 25 [2018-04-11 16:19:06,545 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-04-11 16:19:06,546 INFO L225 Difference]: With dead ends: 97 [2018-04-11 16:19:06,546 INFO L226 Difference]: Without dead ends: 97 [2018-04-11 16:19:06,546 INFO L567 BasicCegarLoop]: 0 DeclaredPredicates, 12 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 6 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=46, Invalid=86, Unknown=0, NotChecked=0, Total=132 [2018-04-11 16:19:06,546 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 97 states. [2018-04-11 16:19:06,549 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 97 to 74. [2018-04-11 16:19:06,549 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 74 states. [2018-04-11 16:19:06,549 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 74 states to 74 states and 79 transitions. [2018-04-11 16:19:06,549 INFO L78 Accepts]: Start accepts. Automaton has 74 states and 79 transitions. Word has length 25 [2018-04-11 16:19:06,550 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-04-11 16:19:06,550 INFO L459 AbstractCegarLoop]: Abstraction has 74 states and 79 transitions. [2018-04-11 16:19:06,550 INFO L460 AbstractCegarLoop]: Interpolant automaton has 7 states. [2018-04-11 16:19:06,550 INFO L276 IsEmpty]: Start isEmpty. Operand 74 states and 79 transitions. [2018-04-11 16:19:06,550 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 26 [2018-04-11 16:19:06,550 INFO L347 BasicCegarLoop]: Found error trace [2018-04-11 16:19:06,550 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] [2018-04-11 16:19:06,550 INFO L408 AbstractCegarLoop]: === Iteration 6 === [mainErr5RequiresViolation, mainErr13RequiresViolation, mainErr1RequiresViolation, mainErr9RequiresViolation, mainErr0RequiresViolation, mainErr18EnsuresViolationMEMORY_LEAK, mainErr17AssertViolationMEMORY_FREE, mainErr3RequiresViolation, mainErr7RequiresViolation, mainErr11RequiresViolation, mainErr8RequiresViolation, mainErr10RequiresViolation, mainErr15RequiresViolation, mainErr2RequiresViolation, mainErr4RequiresViolation, mainErr12RequiresViolation, mainErr6RequiresViolation, mainErr16AssertViolationMEMORY_FREE, mainErr14RequiresViolation]=== [2018-04-11 16:19:06,550 INFO L82 PathProgramCache]: Analyzing trace with hash -710334692, now seen corresponding path program 1 times [2018-04-11 16:19:06,551 INFO L213 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS_NO_ARRAY [2018-04-11 16:19:06,551 INFO L68 tionRefinementEngine]: Using refinement strategy SmtInterpolRefinementStrategy [2018-04-11 16:19:06,551 INFO L119 rtionOrderModulation]: Craig nested/tree interpolation forces the following order [2018-04-11 16:19:06,551 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-04-11 16:19:06,551 INFO L119 rtionOrderModulation]: Craig nested/tree interpolation forces the following order [2018-04-11 16:19:06,564 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-04-11 16:19:06,564 WARN L137 erpolLogProxyWrapper]: Using partial proofs (cut at CNF-level). Set option :produce-proofs to true to get complete proofs. [2018-04-11 16:19:06,639 INFO L134 CoverageAnalysis]: Checked inductivity of 5 backedges. 5 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-04-11 16:19:06,639 INFO L320 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-04-11 16:19:06,639 INFO L335 seRefinementStrategy]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2018-04-11 16:19:06,639 INFO L442 AbstractCegarLoop]: Interpolant automaton has 7 states [2018-04-11 16:19:06,640 INFO L132 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2018-04-11 16:19:06,640 INFO L133 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2018-04-11 16:19:06,640 INFO L87 Difference]: Start difference. First operand 74 states and 79 transitions. Second operand 7 states. [2018-04-11 16:19:06,855 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-04-11 16:19:06,855 INFO L93 Difference]: Finished difference Result 105 states and 111 transitions. [2018-04-11 16:19:06,856 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2018-04-11 16:19:06,856 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 25 [2018-04-11 16:19:06,856 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-04-11 16:19:06,856 INFO L225 Difference]: With dead ends: 105 [2018-04-11 16:19:06,856 INFO L226 Difference]: Without dead ends: 105 [2018-04-11 16:19:06,857 INFO L567 BasicCegarLoop]: 0 DeclaredPredicates, 13 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 11 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=56, Invalid=100, Unknown=0, NotChecked=0, Total=156 [2018-04-11 16:19:06,857 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 105 states. [2018-04-11 16:19:06,859 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 105 to 57. [2018-04-11 16:19:06,860 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 57 states. [2018-04-11 16:19:06,860 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 57 states to 57 states and 60 transitions. [2018-04-11 16:19:06,861 INFO L78 Accepts]: Start accepts. Automaton has 57 states and 60 transitions. Word has length 25 [2018-04-11 16:19:06,861 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-04-11 16:19:06,861 INFO L459 AbstractCegarLoop]: Abstraction has 57 states and 60 transitions. [2018-04-11 16:19:06,861 INFO L460 AbstractCegarLoop]: Interpolant automaton has 7 states. [2018-04-11 16:19:06,861 INFO L276 IsEmpty]: Start isEmpty. Operand 57 states and 60 transitions. [2018-04-11 16:19:06,861 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 26 [2018-04-11 16:19:06,862 INFO L347 BasicCegarLoop]: Found error trace [2018-04-11 16:19:06,862 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] [2018-04-11 16:19:06,862 INFO L408 AbstractCegarLoop]: === Iteration 7 === [mainErr5RequiresViolation, mainErr13RequiresViolation, mainErr1RequiresViolation, mainErr9RequiresViolation, mainErr0RequiresViolation, mainErr18EnsuresViolationMEMORY_LEAK, mainErr17AssertViolationMEMORY_FREE, mainErr3RequiresViolation, mainErr7RequiresViolation, mainErr11RequiresViolation, mainErr8RequiresViolation, mainErr10RequiresViolation, mainErr15RequiresViolation, mainErr2RequiresViolation, mainErr4RequiresViolation, mainErr12RequiresViolation, mainErr6RequiresViolation, mainErr16AssertViolationMEMORY_FREE, mainErr14RequiresViolation]=== [2018-04-11 16:19:06,862 INFO L82 PathProgramCache]: Analyzing trace with hash -878945185, now seen corresponding path program 1 times [2018-04-11 16:19:06,862 INFO L213 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS_NO_ARRAY [2018-04-11 16:19:06,862 INFO L68 tionRefinementEngine]: Using refinement strategy SmtInterpolRefinementStrategy [2018-04-11 16:19:06,863 INFO L119 rtionOrderModulation]: Craig nested/tree interpolation forces the following order [2018-04-11 16:19:06,863 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-04-11 16:19:06,863 INFO L119 rtionOrderModulation]: Craig nested/tree interpolation forces the following order [2018-04-11 16:19:06,875 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-04-11 16:19:06,875 WARN L137 erpolLogProxyWrapper]: Using partial proofs (cut at CNF-level). Set option :produce-proofs to true to get complete proofs. [2018-04-11 16:19:06,999 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 1 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-04-11 16:19:06,999 INFO L308 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2018-04-11 16:19:06,999 INFO L213 ckRefinementStrategy]: Switched to mode SMTINTERPOL_FP [2018-04-11 16:19:07,000 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-04-11 16:19:07,027 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-04-11 16:19:07,035 INFO L270 TraceCheckSpWp]: Computing forward predicates... [2018-04-11 16:19:07,061 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 6 treesize of output 5 [2018-04-11 16:19:07,062 INFO L267 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2018-04-11 16:19:07,065 INFO L267 ElimStorePlain]: Start of recursive call 1: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-04-11 16:19:07,065 INFO L202 ElimStorePlain]: Needed 2 recursive calls to eliminate 1 variables, input treesize:10, output treesize:9 [2018-04-11 16:19:07,109 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 13 treesize of output 3 [2018-04-11 16:19:07,109 INFO L267 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2018-04-11 16:19:07,120 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 13 treesize of output 10 [2018-04-11 16:19:07,122 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 10 treesize of output 9 [2018-04-11 16:19:07,122 INFO L267 ElimStorePlain]: Start of recursive call 4: End of recursive call: and 1 xjuncts. [2018-04-11 16:19:07,124 INFO L267 ElimStorePlain]: Start of recursive call 3: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-04-11 16:19:07,131 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 13 treesize of output 10 [2018-04-11 16:19:07,133 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 10 treesize of output 9 [2018-04-11 16:19:07,133 INFO L267 ElimStorePlain]: Start of recursive call 6: End of recursive call: and 1 xjuncts. [2018-04-11 16:19:07,134 INFO L267 ElimStorePlain]: Start of recursive call 5: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-04-11 16:19:07,141 INFO L267 ElimStorePlain]: Start of recursive call 1: 1 dim-0 vars, 1 dim-1 vars, 2 dim-2 vars, End of recursive call: 1 dim-0 vars, and 1 xjuncts. [2018-04-11 16:19:07,142 INFO L202 ElimStorePlain]: Needed 6 recursive calls to eliminate 4 variables, input treesize:45, output treesize:28 [2018-04-11 16:19:07,158 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 15 treesize of output 11 [2018-04-11 16:19:07,159 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 11 treesize of output 3 [2018-04-11 16:19:07,160 INFO L267 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 1 xjuncts. [2018-04-11 16:19:07,162 INFO L267 ElimStorePlain]: Start of recursive call 2: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-04-11 16:19:07,167 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 15 treesize of output 11 [2018-04-11 16:19:07,168 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 11 treesize of output 3 [2018-04-11 16:19:07,169 INFO L267 ElimStorePlain]: Start of recursive call 5: End of recursive call: and 1 xjuncts. [2018-04-11 16:19:07,170 INFO L267 ElimStorePlain]: Start of recursive call 4: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-04-11 16:19:07,172 INFO L267 ElimStorePlain]: Start of recursive call 1: 1 dim-0 vars, 2 dim-2 vars, End of recursive call: and 1 xjuncts. [2018-04-11 16:19:07,172 INFO L202 ElimStorePlain]: Needed 5 recursive calls to eliminate 3 variables, input treesize:29, output treesize:7 [2018-04-11 16:19:07,184 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 1 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-04-11 16:19:07,184 INFO L320 seRefinementStrategy]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2018-04-11 16:19:07,185 INFO L335 seRefinementStrategy]: Number of different interpolants: perfect sequences [] imperfect sequences [9, 10] total 13 [2018-04-11 16:19:07,185 INFO L442 AbstractCegarLoop]: Interpolant automaton has 13 states [2018-04-11 16:19:07,185 INFO L132 InterpolantAutomaton]: Constructing interpolant automaton starting with 13 interpolants. [2018-04-11 16:19:07,185 INFO L133 InterpolantAutomaton]: CoverageRelationStatistics Valid=32, Invalid=124, Unknown=0, NotChecked=0, Total=156 [2018-04-11 16:19:07,185 INFO L87 Difference]: Start difference. First operand 57 states and 60 transitions. Second operand 13 states. [2018-04-11 16:19:07,453 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-04-11 16:19:07,453 INFO L93 Difference]: Finished difference Result 106 states and 111 transitions. [2018-04-11 16:19:07,454 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2018-04-11 16:19:07,454 INFO L78 Accepts]: Start accepts. Automaton has 13 states. Word has length 25 [2018-04-11 16:19:07,454 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-04-11 16:19:07,454 INFO L225 Difference]: With dead ends: 106 [2018-04-11 16:19:07,454 INFO L226 Difference]: Without dead ends: 106 [2018-04-11 16:19:07,455 INFO L567 BasicCegarLoop]: 0 DeclaredPredicates, 41 GetRequests, 18 SyntacticMatches, 5 SemanticMatches, 18 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 49 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=105, Invalid=275, Unknown=0, NotChecked=0, Total=380 [2018-04-11 16:19:07,455 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 106 states. [2018-04-11 16:19:07,457 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 106 to 72. [2018-04-11 16:19:07,457 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 72 states. [2018-04-11 16:19:07,458 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 72 states to 72 states and 77 transitions. [2018-04-11 16:19:07,458 INFO L78 Accepts]: Start accepts. Automaton has 72 states and 77 transitions. Word has length 25 [2018-04-11 16:19:07,458 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-04-11 16:19:07,459 INFO L459 AbstractCegarLoop]: Abstraction has 72 states and 77 transitions. [2018-04-11 16:19:07,459 INFO L460 AbstractCegarLoop]: Interpolant automaton has 13 states. [2018-04-11 16:19:07,459 INFO L276 IsEmpty]: Start isEmpty. Operand 72 states and 77 transitions. [2018-04-11 16:19:07,459 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 37 [2018-04-11 16:19:07,460 INFO L347 BasicCegarLoop]: Found error trace [2018-04-11 16:19:07,460 INFO L355 BasicCegarLoop]: trace histogram [2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-04-11 16:19:07,460 INFO L408 AbstractCegarLoop]: === Iteration 8 === [mainErr5RequiresViolation, mainErr13RequiresViolation, mainErr1RequiresViolation, mainErr9RequiresViolation, mainErr0RequiresViolation, mainErr18EnsuresViolationMEMORY_LEAK, mainErr17AssertViolationMEMORY_FREE, mainErr3RequiresViolation, mainErr7RequiresViolation, mainErr11RequiresViolation, mainErr8RequiresViolation, mainErr10RequiresViolation, mainErr15RequiresViolation, mainErr2RequiresViolation, mainErr4RequiresViolation, mainErr12RequiresViolation, mainErr6RequiresViolation, mainErr16AssertViolationMEMORY_FREE, mainErr14RequiresViolation]=== [2018-04-11 16:19:07,460 INFO L82 PathProgramCache]: Analyzing trace with hash -1324848324, now seen corresponding path program 1 times [2018-04-11 16:19:07,460 INFO L213 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS_NO_ARRAY [2018-04-11 16:19:07,460 INFO L68 tionRefinementEngine]: Using refinement strategy SmtInterpolRefinementStrategy [2018-04-11 16:19:07,461 INFO L119 rtionOrderModulation]: Craig nested/tree interpolation forces the following order [2018-04-11 16:19:07,461 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-04-11 16:19:07,461 INFO L119 rtionOrderModulation]: Craig nested/tree interpolation forces the following order [2018-04-11 16:19:07,477 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-04-11 16:19:07,478 WARN L137 erpolLogProxyWrapper]: Using partial proofs (cut at CNF-level). Set option :produce-proofs to true to get complete proofs. [2018-04-11 16:19:07,488 INFO L431 seRefinementStrategy]: Interpolation failed due to KNOWN_IGNORE: Unknown lemma type! [2018-04-11 16:19:07,488 INFO L308 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2018-04-11 16:19:07,488 INFO L213 ckRefinementStrategy]: Switched to mode SMTINTERPOL_FP [2018-04-11 16:19:07,489 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-04-11 16:19:07,518 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-04-11 16:19:07,522 INFO L270 TraceCheckSpWp]: Computing forward predicates... [2018-04-11 16:19:07,527 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 6 treesize of output 5 [2018-04-11 16:19:07,528 INFO L267 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2018-04-11 16:19:07,532 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 6 treesize of output 5 [2018-04-11 16:19:07,533 INFO L267 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 1 xjuncts. [2018-04-11 16:19:07,537 INFO L267 ElimStorePlain]: Start of recursive call 1: 2 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-04-11 16:19:07,537 INFO L202 ElimStorePlain]: Needed 3 recursive calls to eliminate 2 variables, input treesize:16, output treesize:14 [2018-04-11 16:19:07,562 INFO L700 Elim1Store]: detected not equals via solver [2018-04-11 16:19:07,563 INFO L700 Elim1Store]: detected not equals via solver [2018-04-11 16:19:07,564 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 2 select indices, 2 select index equivalence classes, 2 disjoint index pairs (out of 1 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 17 treesize of output 24 [2018-04-11 16:19:07,564 INFO L267 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2018-04-11 16:19:07,574 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 12 treesize of output 15 [2018-04-11 16:19:07,574 INFO L267 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 1 xjuncts. [2018-04-11 16:19:07,580 INFO L267 ElimStorePlain]: Start of recursive call 1: 2 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-04-11 16:19:07,580 INFO L202 ElimStorePlain]: Needed 3 recursive calls to eliminate 2 variables, input treesize:37, output treesize:34 [2018-04-11 16:19:07,605 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 2 select indices, 2 select index equivalence classes, 1 disjoint index pairs (out of 1 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 18 treesize of output 8 [2018-04-11 16:19:07,605 INFO L267 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2018-04-11 16:19:07,615 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 13 treesize of output 10 [2018-04-11 16:19:07,617 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 10 treesize of output 9 [2018-04-11 16:19:07,617 INFO L267 ElimStorePlain]: Start of recursive call 4: End of recursive call: and 1 xjuncts. [2018-04-11 16:19:07,618 INFO L267 ElimStorePlain]: Start of recursive call 3: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-04-11 16:19:07,625 INFO L267 ElimStorePlain]: Start of recursive call 1: 1 dim-0 vars, 1 dim-1 vars, 1 dim-2 vars, End of recursive call: and 1 xjuncts. [2018-04-11 16:19:07,625 INFO L202 ElimStorePlain]: Needed 4 recursive calls to eliminate 3 variables, input treesize:54, output treesize:39 [2018-04-11 16:19:07,697 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 1 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 47 treesize of output 41 [2018-04-11 16:19:07,709 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 16 treesize of output 15 [2018-04-11 16:19:07,710 INFO L267 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 1 xjuncts. [2018-04-11 16:19:07,714 INFO L267 ElimStorePlain]: Start of recursive call 2: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-04-11 16:19:07,721 INFO L267 ElimStorePlain]: Start of recursive call 1: 2 dim-0 vars, 1 dim-2 vars, End of recursive call: 2 dim-0 vars, and 1 xjuncts. [2018-04-11 16:19:07,721 INFO L202 ElimStorePlain]: Needed 3 recursive calls to eliminate 3 variables, input treesize:61, output treesize:51 [2018-04-11 16:19:07,784 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 2 select indices, 2 select index equivalence classes, 1 disjoint index pairs (out of 1 index pairs), introduced 3 new quantified variables, introduced 0 case distinctions, treesize of input 44 treesize of output 37 [2018-04-11 16:19:07,786 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 7 treesize of output 1 [2018-04-11 16:19:07,787 INFO L267 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 1 xjuncts. [2018-04-11 16:19:07,791 INFO L682 Elim1Store]: detected equality via solver [2018-04-11 16:19:07,792 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 2 select indices, 2 select index equivalence classes, 1 disjoint index pairs (out of 1 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 23 treesize of output 15 [2018-04-11 16:19:07,792 INFO L267 ElimStorePlain]: Start of recursive call 4: End of recursive call: and 1 xjuncts. [2018-04-11 16:19:07,795 INFO L267 ElimStorePlain]: Start of recursive call 2: 2 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-04-11 16:19:07,799 INFO L267 ElimStorePlain]: Start of recursive call 1: 3 dim-0 vars, 1 dim-2 vars, End of recursive call: 1 dim-0 vars, and 1 xjuncts. [2018-04-11 16:19:07,799 INFO L202 ElimStorePlain]: Needed 4 recursive calls to eliminate 4 variables, input treesize:55, output treesize:15 [2018-04-11 16:19:07,839 INFO L134 CoverageAnalysis]: Checked inductivity of 7 backedges. 0 proven. 7 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-04-11 16:19:07,839 INFO L320 seRefinementStrategy]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2018-04-11 16:19:07,839 INFO L335 seRefinementStrategy]: Number of different interpolants: perfect sequences [] imperfect sequences [14] total 14 [2018-04-11 16:19:07,839 INFO L442 AbstractCegarLoop]: Interpolant automaton has 15 states [2018-04-11 16:19:07,839 INFO L132 InterpolantAutomaton]: Constructing interpolant automaton starting with 15 interpolants. [2018-04-11 16:19:07,840 INFO L133 InterpolantAutomaton]: CoverageRelationStatistics Valid=41, Invalid=169, Unknown=0, NotChecked=0, Total=210 [2018-04-11 16:19:07,840 INFO L87 Difference]: Start difference. First operand 72 states and 77 transitions. Second operand 15 states. [2018-04-11 16:19:08,361 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-04-11 16:19:08,361 INFO L93 Difference]: Finished difference Result 124 states and 133 transitions. [2018-04-11 16:19:08,361 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2018-04-11 16:19:08,361 INFO L78 Accepts]: Start accepts. Automaton has 15 states. Word has length 36 [2018-04-11 16:19:08,361 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-04-11 16:19:08,362 INFO L225 Difference]: With dead ends: 124 [2018-04-11 16:19:08,362 INFO L226 Difference]: Without dead ends: 124 [2018-04-11 16:19:08,362 INFO L567 BasicCegarLoop]: 0 DeclaredPredicates, 47 GetRequests, 22 SyntacticMatches, 0 SemanticMatches, 25 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 86 ImplicationChecksByTransitivity, 0.4s TimeCoverageRelationStatistics Valid=166, Invalid=536, Unknown=0, NotChecked=0, Total=702 [2018-04-11 16:19:08,362 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 124 states. [2018-04-11 16:19:08,365 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 124 to 95. [2018-04-11 16:19:08,365 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 95 states. [2018-04-11 16:19:08,366 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 95 states to 95 states and 104 transitions. [2018-04-11 16:19:08,366 INFO L78 Accepts]: Start accepts. Automaton has 95 states and 104 transitions. Word has length 36 [2018-04-11 16:19:08,366 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-04-11 16:19:08,366 INFO L459 AbstractCegarLoop]: Abstraction has 95 states and 104 transitions. [2018-04-11 16:19:08,366 INFO L460 AbstractCegarLoop]: Interpolant automaton has 15 states. [2018-04-11 16:19:08,366 INFO L276 IsEmpty]: Start isEmpty. Operand 95 states and 104 transitions. [2018-04-11 16:19:08,367 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 37 [2018-04-11 16:19:08,367 INFO L347 BasicCegarLoop]: Found error trace [2018-04-11 16:19:08,367 INFO L355 BasicCegarLoop]: trace histogram [2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-04-11 16:19:08,367 INFO L408 AbstractCegarLoop]: === Iteration 9 === [mainErr5RequiresViolation, mainErr13RequiresViolation, mainErr1RequiresViolation, mainErr9RequiresViolation, mainErr0RequiresViolation, mainErr18EnsuresViolationMEMORY_LEAK, mainErr17AssertViolationMEMORY_FREE, mainErr3RequiresViolation, mainErr7RequiresViolation, mainErr11RequiresViolation, mainErr8RequiresViolation, mainErr10RequiresViolation, mainErr15RequiresViolation, mainErr2RequiresViolation, mainErr4RequiresViolation, mainErr12RequiresViolation, mainErr6RequiresViolation, mainErr16AssertViolationMEMORY_FREE, mainErr14RequiresViolation]=== [2018-04-11 16:19:08,367 INFO L82 PathProgramCache]: Analyzing trace with hash -1324848323, now seen corresponding path program 1 times [2018-04-11 16:19:08,367 INFO L213 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS_NO_ARRAY [2018-04-11 16:19:08,367 INFO L68 tionRefinementEngine]: Using refinement strategy SmtInterpolRefinementStrategy [2018-04-11 16:19:08,368 INFO L119 rtionOrderModulation]: Craig nested/tree interpolation forces the following order [2018-04-11 16:19:08,368 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-04-11 16:19:08,368 INFO L119 rtionOrderModulation]: Craig nested/tree interpolation forces the following order [2018-04-11 16:19:08,384 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-04-11 16:19:08,384 WARN L137 erpolLogProxyWrapper]: Using partial proofs (cut at CNF-level). Set option :produce-proofs to true to get complete proofs. [2018-04-11 16:19:08,391 INFO L431 seRefinementStrategy]: Interpolation failed due to KNOWN_IGNORE: Unknown lemma type! [2018-04-11 16:19:08,391 INFO L308 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2018-04-11 16:19:08,391 INFO L213 ckRefinementStrategy]: Switched to mode SMTINTERPOL_FP [2018-04-11 16:19:08,392 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-04-11 16:19:08,427 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-04-11 16:19:08,431 INFO L270 TraceCheckSpWp]: Computing forward predicates... [2018-04-11 16:19:08,436 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 6 treesize of output 5 [2018-04-11 16:19:08,436 INFO L267 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2018-04-11 16:19:08,440 INFO L267 ElimStorePlain]: Start of recursive call 1: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-04-11 16:19:08,440 INFO L202 ElimStorePlain]: Needed 2 recursive calls to eliminate 1 variables, input treesize:10, output treesize:9 [2018-04-11 16:19:08,483 INFO L700 Elim1Store]: detected not equals via solver [2018-04-11 16:19:08,484 INFO L700 Elim1Store]: detected not equals via solver [2018-04-11 16:19:08,485 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 2 select indices, 2 select index equivalence classes, 2 disjoint index pairs (out of 1 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 17 treesize of output 24 [2018-04-11 16:19:08,486 INFO L267 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2018-04-11 16:19:08,499 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 6 treesize of output 5 [2018-04-11 16:19:08,499 INFO L267 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 1 xjuncts. [2018-04-11 16:19:08,511 INFO L267 ElimStorePlain]: Start of recursive call 1: 2 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-04-11 16:19:08,511 INFO L202 ElimStorePlain]: Needed 3 recursive calls to eliminate 2 variables, input treesize:38, output treesize:35 [2018-04-11 16:19:08,554 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 2 select indices, 2 select index equivalence classes, 1 disjoint index pairs (out of 1 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 11 treesize of output 4 [2018-04-11 16:19:08,554 INFO L267 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2018-04-11 16:19:08,573 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 13 treesize of output 10 [2018-04-11 16:19:08,575 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 10 treesize of output 9 [2018-04-11 16:19:08,575 INFO L267 ElimStorePlain]: Start of recursive call 4: End of recursive call: and 1 xjuncts. [2018-04-11 16:19:08,577 INFO L267 ElimStorePlain]: Start of recursive call 3: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-04-11 16:19:08,593 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 13 treesize of output 10 [2018-04-11 16:19:08,595 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 10 treesize of output 9 [2018-04-11 16:19:08,595 INFO L267 ElimStorePlain]: Start of recursive call 6: End of recursive call: and 1 xjuncts. [2018-04-11 16:19:08,599 INFO L267 ElimStorePlain]: Start of recursive call 5: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-04-11 16:19:08,611 INFO L267 ElimStorePlain]: Start of recursive call 1: 2 dim-0 vars, 1 dim-1 vars, 2 dim-2 vars, End of recursive call: and 1 xjuncts. [2018-04-11 16:19:08,611 INFO L202 ElimStorePlain]: Needed 6 recursive calls to eliminate 5 variables, input treesize:61, output treesize:43 [2018-04-11 16:19:08,698 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 1 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 72 treesize of output 66 [2018-04-11 16:19:08,701 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 16 treesize of output 15 [2018-04-11 16:19:08,701 INFO L267 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 1 xjuncts. [2018-04-11 16:19:08,710 INFO L267 ElimStorePlain]: Start of recursive call 2: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-04-11 16:19:08,730 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 1 disjoint index pairs (out of 1 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 44 treesize of output 45 [2018-04-11 16:19:08,732 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 16 treesize of output 15 [2018-04-11 16:19:08,732 INFO L267 ElimStorePlain]: Start of recursive call 5: End of recursive call: and 1 xjuncts. [2018-04-11 16:19:08,736 INFO L267 ElimStorePlain]: Start of recursive call 4: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-04-11 16:19:08,747 INFO L267 ElimStorePlain]: Start of recursive call 1: 2 dim-0 vars, 2 dim-2 vars, End of recursive call: 2 dim-0 vars, and 1 xjuncts. [2018-04-11 16:19:08,748 INFO L202 ElimStorePlain]: Needed 5 recursive calls to eliminate 4 variables, input treesize:102, output treesize:82 [2018-04-11 16:19:08,822 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 2 select indices, 2 select index equivalence classes, 1 disjoint index pairs (out of 1 index pairs), introduced 3 new quantified variables, introduced 0 case distinctions, treesize of input 61 treesize of output 52 [2018-04-11 16:19:08,826 INFO L682 Elim1Store]: detected equality via solver [2018-04-11 16:19:08,827 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 2 select indices, 2 select index equivalence classes, 1 disjoint index pairs (out of 1 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 38 treesize of output 26 [2018-04-11 16:19:08,827 INFO L267 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 1 xjuncts. [2018-04-11 16:19:08,838 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 7 treesize of output 1 [2018-04-11 16:19:08,838 INFO L267 ElimStorePlain]: Start of recursive call 4: End of recursive call: and 1 xjuncts. [2018-04-11 16:19:08,844 INFO L267 ElimStorePlain]: Start of recursive call 2: 2 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-04-11 16:19:08,858 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 2 select indices, 2 select index equivalence classes, 1 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 37 treesize of output 33 [2018-04-11 16:19:08,861 INFO L682 Elim1Store]: detected equality via solver [2018-04-11 16:19:08,861 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 22 treesize of output 14 [2018-04-11 16:19:08,862 INFO L267 ElimStorePlain]: Start of recursive call 6: End of recursive call: and 1 xjuncts. [2018-04-11 16:19:08,866 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 7 treesize of output 1 [2018-04-11 16:19:08,867 INFO L267 ElimStorePlain]: Start of recursive call 7: End of recursive call: and 1 xjuncts. [2018-04-11 16:19:08,869 INFO L267 ElimStorePlain]: Start of recursive call 5: 2 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-04-11 16:19:08,876 INFO L267 ElimStorePlain]: Start of recursive call 1: 4 dim-0 vars, 2 dim-2 vars, End of recursive call: and 1 xjuncts. [2018-04-11 16:19:08,876 INFO L202 ElimStorePlain]: Needed 7 recursive calls to eliminate 6 variables, input treesize:100, output treesize:12 [2018-04-11 16:19:08,909 INFO L134 CoverageAnalysis]: Checked inductivity of 7 backedges. 0 proven. 7 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-04-11 16:19:08,909 INFO L320 seRefinementStrategy]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2018-04-11 16:19:08,910 INFO L335 seRefinementStrategy]: Number of different interpolants: perfect sequences [] imperfect sequences [15] total 15 [2018-04-11 16:19:08,910 INFO L442 AbstractCegarLoop]: Interpolant automaton has 16 states [2018-04-11 16:19:08,910 INFO L132 InterpolantAutomaton]: Constructing interpolant automaton starting with 16 interpolants. [2018-04-11 16:19:08,910 INFO L133 InterpolantAutomaton]: CoverageRelationStatistics Valid=40, Invalid=200, Unknown=0, NotChecked=0, Total=240 [2018-04-11 16:19:08,910 INFO L87 Difference]: Start difference. First operand 95 states and 104 transitions. Second operand 16 states. [2018-04-11 16:19:09,888 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-04-11 16:19:09,888 INFO L93 Difference]: Finished difference Result 141 states and 150 transitions. [2018-04-11 16:19:09,889 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 19 states. [2018-04-11 16:19:09,889 INFO L78 Accepts]: Start accepts. Automaton has 16 states. Word has length 36 [2018-04-11 16:19:09,889 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-04-11 16:19:09,889 INFO L225 Difference]: With dead ends: 141 [2018-04-11 16:19:09,889 INFO L226 Difference]: Without dead ends: 141 [2018-04-11 16:19:09,890 INFO L567 BasicCegarLoop]: 0 DeclaredPredicates, 50 GetRequests, 21 SyntacticMatches, 0 SemanticMatches, 29 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 143 ImplicationChecksByTransitivity, 0.7s TimeCoverageRelationStatistics Valid=187, Invalid=743, Unknown=0, NotChecked=0, Total=930 [2018-04-11 16:19:09,890 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 141 states. [2018-04-11 16:19:09,893 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 141 to 94. [2018-04-11 16:19:09,893 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 94 states. [2018-04-11 16:19:09,893 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 94 states to 94 states and 102 transitions. [2018-04-11 16:19:09,893 INFO L78 Accepts]: Start accepts. Automaton has 94 states and 102 transitions. Word has length 36 [2018-04-11 16:19:09,893 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-04-11 16:19:09,893 INFO L459 AbstractCegarLoop]: Abstraction has 94 states and 102 transitions. [2018-04-11 16:19:09,894 INFO L460 AbstractCegarLoop]: Interpolant automaton has 16 states. [2018-04-11 16:19:09,894 INFO L276 IsEmpty]: Start isEmpty. Operand 94 states and 102 transitions. [2018-04-11 16:19:09,894 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 37 [2018-04-11 16:19:09,894 INFO L347 BasicCegarLoop]: Found error trace [2018-04-11 16:19:09,894 INFO L355 BasicCegarLoop]: trace histogram [2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-04-11 16:19:09,894 INFO L408 AbstractCegarLoop]: === Iteration 10 === [mainErr5RequiresViolation, mainErr13RequiresViolation, mainErr1RequiresViolation, mainErr9RequiresViolation, mainErr0RequiresViolation, mainErr18EnsuresViolationMEMORY_LEAK, mainErr17AssertViolationMEMORY_FREE, mainErr3RequiresViolation, mainErr7RequiresViolation, mainErr11RequiresViolation, mainErr8RequiresViolation, mainErr10RequiresViolation, mainErr15RequiresViolation, mainErr2RequiresViolation, mainErr4RequiresViolation, mainErr12RequiresViolation, mainErr6RequiresViolation, mainErr16AssertViolationMEMORY_FREE, mainErr14RequiresViolation]=== [2018-04-11 16:19:09,894 INFO L82 PathProgramCache]: Analyzing trace with hash -470047326, now seen corresponding path program 1 times [2018-04-11 16:19:09,894 INFO L213 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS_NO_ARRAY [2018-04-11 16:19:09,894 INFO L68 tionRefinementEngine]: Using refinement strategy SmtInterpolRefinementStrategy [2018-04-11 16:19:09,895 INFO L119 rtionOrderModulation]: Craig nested/tree interpolation forces the following order [2018-04-11 16:19:09,895 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-04-11 16:19:09,895 INFO L119 rtionOrderModulation]: Craig nested/tree interpolation forces the following order [2018-04-11 16:19:09,903 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-04-11 16:19:09,904 WARN L137 erpolLogProxyWrapper]: Using partial proofs (cut at CNF-level). Set option :produce-proofs to true to get complete proofs. [2018-04-11 16:19:10,025 INFO L134 CoverageAnalysis]: Checked inductivity of 5 backedges. 1 proven. 2 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2018-04-11 16:19:10,026 INFO L308 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2018-04-11 16:19:10,026 INFO L213 ckRefinementStrategy]: Switched to mode SMTINTERPOL_FP [2018-04-11 16:19:10,026 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-04-11 16:19:10,043 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-04-11 16:19:10,046 INFO L270 TraceCheckSpWp]: Computing forward predicates... [2018-04-11 16:19:10,087 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 13 treesize of output 10 [2018-04-11 16:19:10,091 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 10 treesize of output 9 [2018-04-11 16:19:10,091 INFO L267 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 1 xjuncts. [2018-04-11 16:19:10,092 INFO L267 ElimStorePlain]: Start of recursive call 2: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-04-11 16:19:10,097 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 13 treesize of output 10 [2018-04-11 16:19:10,098 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 10 treesize of output 9 [2018-04-11 16:19:10,098 INFO L267 ElimStorePlain]: Start of recursive call 5: End of recursive call: and 1 xjuncts. [2018-04-11 16:19:10,099 INFO L267 ElimStorePlain]: Start of recursive call 4: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-04-11 16:19:10,103 INFO L267 ElimStorePlain]: Start of recursive call 1: 1 dim-0 vars, 2 dim-2 vars, End of recursive call: 1 dim-0 vars, and 1 xjuncts. [2018-04-11 16:19:10,103 INFO L202 ElimStorePlain]: Needed 5 recursive calls to eliminate 3 variables, input treesize:33, output treesize:25 [2018-04-11 16:19:10,153 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 19 treesize of output 15 [2018-04-11 16:19:10,160 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 0 new quantified variables, introduced 1 case distinctions, treesize of input 15 treesize of output 12 [2018-04-11 16:19:10,161 INFO L267 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 2 xjuncts. [2018-04-11 16:19:10,164 INFO L267 ElimStorePlain]: Start of recursive call 2: 1 dim-1 vars, End of recursive call: and 2 xjuncts. [2018-04-11 16:19:10,195 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 19 treesize of output 15 [2018-04-11 16:19:10,204 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 0 new quantified variables, introduced 1 case distinctions, treesize of input 15 treesize of output 12 [2018-04-11 16:19:10,204 INFO L267 ElimStorePlain]: Start of recursive call 5: End of recursive call: and 2 xjuncts. [2018-04-11 16:19:10,208 INFO L267 ElimStorePlain]: Start of recursive call 4: 1 dim-1 vars, End of recursive call: and 2 xjuncts. [2018-04-11 16:19:10,215 INFO L267 ElimStorePlain]: Start of recursive call 1: 2 dim-0 vars, 2 dim-2 vars, End of recursive call: and 3 xjuncts. [2018-04-11 16:19:10,216 INFO L202 ElimStorePlain]: Needed 5 recursive calls to eliminate 4 variables, input treesize:43, output treesize:16 [2018-04-11 16:19:10,246 INFO L134 CoverageAnalysis]: Checked inductivity of 5 backedges. 1 proven. 2 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2018-04-11 16:19:10,247 INFO L320 seRefinementStrategy]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2018-04-11 16:19:10,247 INFO L335 seRefinementStrategy]: Number of different interpolants: perfect sequences [] imperfect sequences [11, 12] total 19 [2018-04-11 16:19:10,247 INFO L442 AbstractCegarLoop]: Interpolant automaton has 19 states [2018-04-11 16:19:10,247 INFO L132 InterpolantAutomaton]: Constructing interpolant automaton starting with 19 interpolants. [2018-04-11 16:19:10,247 INFO L133 InterpolantAutomaton]: CoverageRelationStatistics Valid=50, Invalid=292, Unknown=0, NotChecked=0, Total=342 [2018-04-11 16:19:10,247 INFO L87 Difference]: Start difference. First operand 94 states and 102 transitions. Second operand 19 states. [2018-04-11 16:19:10,559 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-04-11 16:19:10,559 INFO L93 Difference]: Finished difference Result 115 states and 122 transitions. [2018-04-11 16:19:10,560 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2018-04-11 16:19:10,560 INFO L78 Accepts]: Start accepts. Automaton has 19 states. Word has length 36 [2018-04-11 16:19:10,560 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-04-11 16:19:10,560 INFO L225 Difference]: With dead ends: 115 [2018-04-11 16:19:10,560 INFO L226 Difference]: Without dead ends: 115 [2018-04-11 16:19:10,561 INFO L567 BasicCegarLoop]: 0 DeclaredPredicates, 57 GetRequests, 27 SyntacticMatches, 3 SemanticMatches, 27 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 125 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=175, Invalid=637, Unknown=0, NotChecked=0, Total=812 [2018-04-11 16:19:10,561 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 115 states. [2018-04-11 16:19:10,563 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 115 to 105. [2018-04-11 16:19:10,563 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 105 states. [2018-04-11 16:19:10,564 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 105 states to 105 states and 113 transitions. [2018-04-11 16:19:10,564 INFO L78 Accepts]: Start accepts. Automaton has 105 states and 113 transitions. Word has length 36 [2018-04-11 16:19:10,564 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-04-11 16:19:10,564 INFO L459 AbstractCegarLoop]: Abstraction has 105 states and 113 transitions. [2018-04-11 16:19:10,564 INFO L460 AbstractCegarLoop]: Interpolant automaton has 19 states. [2018-04-11 16:19:10,564 INFO L276 IsEmpty]: Start isEmpty. Operand 105 states and 113 transitions. [2018-04-11 16:19:10,565 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 38 [2018-04-11 16:19:10,565 INFO L347 BasicCegarLoop]: Found error trace [2018-04-11 16:19:10,565 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, 1, 1, 1, 1, 1, 1, 1] [2018-04-11 16:19:10,565 INFO L408 AbstractCegarLoop]: === Iteration 11 === [mainErr5RequiresViolation, mainErr13RequiresViolation, mainErr1RequiresViolation, mainErr9RequiresViolation, mainErr0RequiresViolation, mainErr18EnsuresViolationMEMORY_LEAK, mainErr17AssertViolationMEMORY_FREE, mainErr3RequiresViolation, mainErr7RequiresViolation, mainErr11RequiresViolation, mainErr8RequiresViolation, mainErr10RequiresViolation, mainErr15RequiresViolation, mainErr2RequiresViolation, mainErr4RequiresViolation, mainErr12RequiresViolation, mainErr6RequiresViolation, mainErr16AssertViolationMEMORY_FREE, mainErr14RequiresViolation]=== [2018-04-11 16:19:10,566 INFO L82 PathProgramCache]: Analyzing trace with hash -1686566652, now seen corresponding path program 1 times [2018-04-11 16:19:10,566 INFO L213 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS_NO_ARRAY [2018-04-11 16:19:10,566 INFO L68 tionRefinementEngine]: Using refinement strategy SmtInterpolRefinementStrategy [2018-04-11 16:19:10,566 INFO L119 rtionOrderModulation]: Craig nested/tree interpolation forces the following order [2018-04-11 16:19:10,567 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-04-11 16:19:10,567 INFO L119 rtionOrderModulation]: Craig nested/tree interpolation forces the following order [2018-04-11 16:19:10,573 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-04-11 16:19:10,573 WARN L137 erpolLogProxyWrapper]: Using partial proofs (cut at CNF-level). Set option :produce-proofs to true to get complete proofs. [2018-04-11 16:19:10,575 INFO L431 seRefinementStrategy]: Interpolation failed due to KNOWN_IGNORE: Unknown lemma type! [2018-04-11 16:19:10,575 INFO L308 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2018-04-11 16:19:10,575 INFO L213 ckRefinementStrategy]: Switched to mode SMTINTERPOL_FP [2018-04-11 16:19:10,576 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-04-11 16:19:10,585 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-04-11 16:19:10,588 INFO L270 TraceCheckSpWp]: Computing forward predicates... [2018-04-11 16:19:10,669 WARN L1033 $PredicateComparison]: unable to prove that (exists ((main_~p~0.base Int)) (and (= 0 (select |c_old(#valid)| main_~p~0.base)) (= (store |c_old(#valid)| main_~p~0.base 0) |c_#valid|))) is different from true [2018-04-11 16:19:10,676 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 2 trivial. 2 not checked. [2018-04-11 16:19:10,676 INFO L320 seRefinementStrategy]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2018-04-11 16:19:10,677 INFO L335 seRefinementStrategy]: Number of different interpolants: perfect sequences [] imperfect sequences [6] total 6 [2018-04-11 16:19:10,677 INFO L442 AbstractCegarLoop]: Interpolant automaton has 7 states [2018-04-11 16:19:10,677 INFO L132 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2018-04-11 16:19:10,677 INFO L133 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=22, Unknown=1, NotChecked=8, Total=42 [2018-04-11 16:19:10,677 INFO L87 Difference]: Start difference. First operand 105 states and 113 transitions. Second operand 7 states. [2018-04-11 16:19:10,754 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-04-11 16:19:10,754 INFO L93 Difference]: Finished difference Result 107 states and 114 transitions. [2018-04-11 16:19:10,754 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2018-04-11 16:19:10,754 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 37 [2018-04-11 16:19:10,754 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-04-11 16:19:10,754 INFO L225 Difference]: With dead ends: 107 [2018-04-11 16:19:10,755 INFO L226 Difference]: Without dead ends: 83 [2018-04-11 16:19:10,755 INFO L567 BasicCegarLoop]: 0 DeclaredPredicates, 39 GetRequests, 31 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 1 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=24, Invalid=50, Unknown=2, NotChecked=14, Total=90 [2018-04-11 16:19:10,755 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 83 states. [2018-04-11 16:19:10,756 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 83 to 83. [2018-04-11 16:19:10,756 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 83 states. [2018-04-11 16:19:10,756 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 83 states to 83 states and 90 transitions. [2018-04-11 16:19:10,757 INFO L78 Accepts]: Start accepts. Automaton has 83 states and 90 transitions. Word has length 37 [2018-04-11 16:19:10,757 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-04-11 16:19:10,757 INFO L459 AbstractCegarLoop]: Abstraction has 83 states and 90 transitions. [2018-04-11 16:19:10,757 INFO L460 AbstractCegarLoop]: Interpolant automaton has 7 states. [2018-04-11 16:19:10,757 INFO L276 IsEmpty]: Start isEmpty. Operand 83 states and 90 transitions. [2018-04-11 16:19:10,757 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 43 [2018-04-11 16:19:10,757 INFO L347 BasicCegarLoop]: Found error trace [2018-04-11 16:19:10,757 INFO L355 BasicCegarLoop]: trace histogram [3, 3, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-04-11 16:19:10,758 INFO L408 AbstractCegarLoop]: === Iteration 12 === [mainErr5RequiresViolation, mainErr13RequiresViolation, mainErr1RequiresViolation, mainErr9RequiresViolation, mainErr0RequiresViolation, mainErr18EnsuresViolationMEMORY_LEAK, mainErr17AssertViolationMEMORY_FREE, mainErr3RequiresViolation, mainErr7RequiresViolation, mainErr11RequiresViolation, mainErr8RequiresViolation, mainErr10RequiresViolation, mainErr15RequiresViolation, mainErr2RequiresViolation, mainErr4RequiresViolation, mainErr12RequiresViolation, mainErr6RequiresViolation, mainErr16AssertViolationMEMORY_FREE, mainErr14RequiresViolation]=== [2018-04-11 16:19:10,758 INFO L82 PathProgramCache]: Analyzing trace with hash -976350998, now seen corresponding path program 2 times [2018-04-11 16:19:10,758 INFO L213 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS_NO_ARRAY [2018-04-11 16:19:10,758 INFO L68 tionRefinementEngine]: Using refinement strategy SmtInterpolRefinementStrategy [2018-04-11 16:19:10,758 INFO L119 rtionOrderModulation]: Craig nested/tree interpolation forces the following order [2018-04-11 16:19:10,758 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-04-11 16:19:10,758 INFO L119 rtionOrderModulation]: Craig nested/tree interpolation forces the following order [2018-04-11 16:19:10,769 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-04-11 16:19:10,770 WARN L137 erpolLogProxyWrapper]: Using partial proofs (cut at CNF-level). Set option :produce-proofs to true to get complete proofs. [2018-04-11 16:19:10,806 INFO L431 seRefinementStrategy]: Interpolation failed due to KNOWN_IGNORE: Unknown lemma type! [2018-04-11 16:19:10,806 INFO L308 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2018-04-11 16:19:10,806 INFO L213 ckRefinementStrategy]: Switched to mode SMTINTERPOL_FP [2018-04-11 16:19:10,806 INFO L103 rtionOrderModulation]: Keeping assertion order OUTSIDE_LOOP_FIRST1 [2018-04-11 16:19:10,838 INFO L242 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2018-04-11 16:19:10,838 INFO L243 tOrderPrioritization]: Conjunction of SSA is unsat [2018-04-11 16:19:10,842 INFO L270 TraceCheckSpWp]: Computing forward predicates... [2018-04-11 16:19:10,868 INFO L700 Elim1Store]: detected not equals via solver [2018-04-11 16:19:10,869 INFO L700 Elim1Store]: detected not equals via solver [2018-04-11 16:19:10,869 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 2 select indices, 2 select index equivalence classes, 2 disjoint index pairs (out of 1 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 17 treesize of output 24 [2018-04-11 16:19:10,870 INFO L267 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2018-04-11 16:19:10,882 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 6 treesize of output 5 [2018-04-11 16:19:10,883 INFO L267 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 1 xjuncts. [2018-04-11 16:19:10,893 INFO L267 ElimStorePlain]: Start of recursive call 1: 2 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-04-11 16:19:10,894 INFO L202 ElimStorePlain]: Needed 3 recursive calls to eliminate 2 variables, input treesize:38, output treesize:35 [2018-04-11 16:19:10,928 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 2 select indices, 2 select index equivalence classes, 1 disjoint index pairs (out of 1 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 11 treesize of output 4 [2018-04-11 16:19:10,928 INFO L267 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2018-04-11 16:19:10,938 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 13 treesize of output 10 [2018-04-11 16:19:10,939 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 10 treesize of output 9 [2018-04-11 16:19:10,939 INFO L267 ElimStorePlain]: Start of recursive call 4: End of recursive call: and 1 xjuncts. [2018-04-11 16:19:10,941 INFO L267 ElimStorePlain]: Start of recursive call 3: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-04-11 16:19:10,956 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 13 treesize of output 10 [2018-04-11 16:19:10,958 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 10 treesize of output 9 [2018-04-11 16:19:10,958 INFO L267 ElimStorePlain]: Start of recursive call 6: End of recursive call: and 1 xjuncts. [2018-04-11 16:19:10,959 INFO L267 ElimStorePlain]: Start of recursive call 5: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-04-11 16:19:10,967 INFO L267 ElimStorePlain]: Start of recursive call 1: 1 dim-0 vars, 1 dim-1 vars, 2 dim-2 vars, End of recursive call: and 1 xjuncts. [2018-04-11 16:19:10,968 INFO L202 ElimStorePlain]: Needed 6 recursive calls to eliminate 4 variables, input treesize:58, output treesize:43 [2018-04-11 16:19:11,020 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 1 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 84 treesize of output 78 [2018-04-11 16:19:11,024 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 22 treesize of output 21 [2018-04-11 16:19:11,025 INFO L267 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 1 xjuncts. [2018-04-11 16:19:11,030 INFO L267 ElimStorePlain]: Start of recursive call 2: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-04-11 16:19:11,053 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 1 disjoint index pairs (out of 1 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 62 treesize of output 63 [2018-04-11 16:19:11,063 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 22 treesize of output 21 [2018-04-11 16:19:11,063 INFO L267 ElimStorePlain]: Start of recursive call 5: End of recursive call: and 1 xjuncts. [2018-04-11 16:19:11,067 INFO L267 ElimStorePlain]: Start of recursive call 4: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-04-11 16:19:11,076 INFO L267 ElimStorePlain]: Start of recursive call 1: 1 dim-0 vars, 2 dim-2 vars, End of recursive call: 1 dim-0 vars, and 1 xjuncts. [2018-04-11 16:19:11,076 INFO L202 ElimStorePlain]: Needed 5 recursive calls to eliminate 3 variables, input treesize:102, output treesize:82 [2018-04-11 16:19:11,157 INFO L682 Elim1Store]: detected equality via solver [2018-04-11 16:19:11,157 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 2 select indices, 2 select index equivalence classes, 1 disjoint index pairs (out of 1 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 23 treesize of output 17 [2018-04-11 16:19:11,157 INFO L267 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2018-04-11 16:19:11,168 INFO L682 Elim1Store]: detected equality via solver [2018-04-11 16:19:11,169 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 3 select indices, 3 select index equivalence classes, 1 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 0 case distinctions, treesize of input 79 treesize of output 73 [2018-04-11 16:19:11,171 INFO L682 Elim1Store]: detected equality via solver [2018-04-11 16:19:11,171 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 21 treesize of output 17 [2018-04-11 16:19:11,171 INFO L267 ElimStorePlain]: Start of recursive call 4: End of recursive call: and 1 xjuncts. [2018-04-11 16:19:11,178 INFO L682 Elim1Store]: detected equality via solver [2018-04-11 16:19:11,178 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 2 select indices, 2 select index equivalence classes, 1 disjoint index pairs (out of 1 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 39 treesize of output 34 [2018-04-11 16:19:11,178 INFO L267 ElimStorePlain]: Start of recursive call 5: 1 dim-0 vars, End of recursive call: 1 dim-0 vars, and 1 xjuncts. [2018-04-11 16:19:11,183 INFO L267 ElimStorePlain]: Start of recursive call 3: 2 dim-1 vars, End of recursive call: 1 dim-0 vars, and 1 xjuncts. [2018-04-11 16:19:11,193 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 2 select indices, 2 select index equivalence classes, 1 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 34 treesize of output 30 [2018-04-11 16:19:11,196 INFO L682 Elim1Store]: detected equality via solver [2018-04-11 16:19:11,196 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 19 treesize of output 15 [2018-04-11 16:19:11,196 INFO L267 ElimStorePlain]: Start of recursive call 7: End of recursive call: and 1 xjuncts. [2018-04-11 16:19:11,200 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 11 treesize of output 1 [2018-04-11 16:19:11,200 INFO L267 ElimStorePlain]: Start of recursive call 8: End of recursive call: and 1 xjuncts. [2018-04-11 16:19:11,201 INFO L267 ElimStorePlain]: Start of recursive call 6: 2 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-04-11 16:19:11,205 INFO L267 ElimStorePlain]: Start of recursive call 1: 3 dim-0 vars, 1 dim-1 vars, 2 dim-2 vars, End of recursive call: and 1 xjuncts. [2018-04-11 16:19:11,206 INFO L202 ElimStorePlain]: Needed 8 recursive calls to eliminate 6 variables, input treesize:119, output treesize:7 [2018-04-11 16:19:11,232 INFO L134 CoverageAnalysis]: Checked inductivity of 16 backedges. 2 proven. 14 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-04-11 16:19:11,232 INFO L320 seRefinementStrategy]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2018-04-11 16:19:11,232 INFO L335 seRefinementStrategy]: Number of different interpolants: perfect sequences [] imperfect sequences [18] total 18 [2018-04-11 16:19:11,232 INFO L442 AbstractCegarLoop]: Interpolant automaton has 18 states [2018-04-11 16:19:11,232 INFO L132 InterpolantAutomaton]: Constructing interpolant automaton starting with 18 interpolants. [2018-04-11 16:19:11,232 INFO L133 InterpolantAutomaton]: CoverageRelationStatistics Valid=48, Invalid=258, Unknown=0, NotChecked=0, Total=306 [2018-04-11 16:19:11,233 INFO L87 Difference]: Start difference. First operand 83 states and 90 transitions. Second operand 18 states. [2018-04-11 16:19:12,047 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-04-11 16:19:12,048 INFO L93 Difference]: Finished difference Result 124 states and 131 transitions. [2018-04-11 16:19:12,048 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 22 states. [2018-04-11 16:19:12,048 INFO L78 Accepts]: Start accepts. Automaton has 18 states. Word has length 42 [2018-04-11 16:19:12,048 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-04-11 16:19:12,048 INFO L225 Difference]: With dead ends: 124 [2018-04-11 16:19:12,048 INFO L226 Difference]: Without dead ends: 124 [2018-04-11 16:19:12,049 INFO L567 BasicCegarLoop]: 0 DeclaredPredicates, 60 GetRequests, 25 SyntacticMatches, 0 SemanticMatches, 35 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 252 ImplicationChecksByTransitivity, 0.6s TimeCoverageRelationStatistics Valid=243, Invalid=1089, Unknown=0, NotChecked=0, Total=1332 [2018-04-11 16:19:12,049 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 124 states. [2018-04-11 16:19:12,050 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 124 to 89. [2018-04-11 16:19:12,050 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 89 states. [2018-04-11 16:19:12,051 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 89 states to 89 states and 96 transitions. [2018-04-11 16:19:12,051 INFO L78 Accepts]: Start accepts. Automaton has 89 states and 96 transitions. Word has length 42 [2018-04-11 16:19:12,051 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-04-11 16:19:12,051 INFO L459 AbstractCegarLoop]: Abstraction has 89 states and 96 transitions. [2018-04-11 16:19:12,051 INFO L460 AbstractCegarLoop]: Interpolant automaton has 18 states. [2018-04-11 16:19:12,051 INFO L276 IsEmpty]: Start isEmpty. Operand 89 states and 96 transitions. [2018-04-11 16:19:12,051 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 48 [2018-04-11 16:19:12,051 INFO L347 BasicCegarLoop]: Found error trace [2018-04-11 16:19:12,052 INFO L355 BasicCegarLoop]: trace histogram [3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-04-11 16:19:12,052 INFO L408 AbstractCegarLoop]: === Iteration 13 === [mainErr5RequiresViolation, mainErr13RequiresViolation, mainErr1RequiresViolation, mainErr9RequiresViolation, mainErr0RequiresViolation, mainErr18EnsuresViolationMEMORY_LEAK, mainErr17AssertViolationMEMORY_FREE, mainErr3RequiresViolation, mainErr7RequiresViolation, mainErr11RequiresViolation, mainErr8RequiresViolation, mainErr10RequiresViolation, mainErr15RequiresViolation, mainErr2RequiresViolation, mainErr4RequiresViolation, mainErr12RequiresViolation, mainErr6RequiresViolation, mainErr16AssertViolationMEMORY_FREE, mainErr14RequiresViolation]=== [2018-04-11 16:19:12,052 INFO L82 PathProgramCache]: Analyzing trace with hash -880582593, now seen corresponding path program 3 times [2018-04-11 16:19:12,052 INFO L213 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS_NO_ARRAY [2018-04-11 16:19:12,052 INFO L68 tionRefinementEngine]: Using refinement strategy SmtInterpolRefinementStrategy [2018-04-11 16:19:12,052 INFO L119 rtionOrderModulation]: Craig nested/tree interpolation forces the following order [2018-04-11 16:19:12,052 INFO L101 rtionOrderModulation]: Changing assertion order to NOT_INCREMENTALLY [2018-04-11 16:19:12,052 INFO L119 rtionOrderModulation]: Craig nested/tree interpolation forces the following order [2018-04-11 16:19:12,062 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-04-11 16:19:12,063 WARN L137 erpolLogProxyWrapper]: Using partial proofs (cut at CNF-level). Set option :produce-proofs to true to get complete proofs. [2018-04-11 16:19:12,069 INFO L431 seRefinementStrategy]: Interpolation failed due to KNOWN_IGNORE: Unknown lemma type! [2018-04-11 16:19:12,069 INFO L308 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2018-04-11 16:19:12,069 INFO L213 ckRefinementStrategy]: Switched to mode SMTINTERPOL_FP [2018-04-11 16:19:12,070 INFO L103 rtionOrderModulation]: Keeping assertion order OUTSIDE_LOOP_FIRST2 [2018-04-11 16:19:12,113 INFO L242 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST2 issued 3 check-sat command(s) [2018-04-11 16:19:12,113 INFO L243 tOrderPrioritization]: Conjunction of SSA is unsat [2018-04-11 16:19:12,118 INFO L270 TraceCheckSpWp]: Computing forward predicates... [2018-04-11 16:19:12,126 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 6 treesize of output 5 [2018-04-11 16:19:12,126 INFO L267 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2018-04-11 16:19:12,131 INFO L267 ElimStorePlain]: Start of recursive call 1: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-04-11 16:19:12,131 INFO L202 ElimStorePlain]: Needed 2 recursive calls to eliminate 1 variables, input treesize:10, output treesize:9 [2018-04-11 16:19:12,158 INFO L700 Elim1Store]: detected not equals via solver [2018-04-11 16:19:12,158 INFO L700 Elim1Store]: detected not equals via solver [2018-04-11 16:19:12,159 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 2 select indices, 2 select index equivalence classes, 2 disjoint index pairs (out of 1 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 17 treesize of output 24 [2018-04-11 16:19:12,159 INFO L267 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2018-04-11 16:19:12,165 INFO L267 ElimStorePlain]: Start of recursive call 1: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-04-11 16:19:12,165 INFO L202 ElimStorePlain]: Needed 2 recursive calls to eliminate 1 variables, input treesize:29, output treesize:27 [2018-04-11 16:19:12,199 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 13 treesize of output 10 [2018-04-11 16:19:12,201 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 10 treesize of output 9 [2018-04-11 16:19:12,201 INFO L267 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 1 xjuncts. [2018-04-11 16:19:12,202 INFO L267 ElimStorePlain]: Start of recursive call 2: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-04-11 16:19:12,209 INFO L267 ElimStorePlain]: Start of recursive call 1: 1 dim-0 vars, 1 dim-2 vars, End of recursive call: and 1 xjuncts. [2018-04-11 16:19:12,209 INFO L202 ElimStorePlain]: Needed 3 recursive calls to eliminate 2 variables, input treesize:40, output treesize:39 [2018-04-11 16:19:12,263 INFO L700 Elim1Store]: detected not equals via solver [2018-04-11 16:19:12,264 INFO L700 Elim1Store]: detected not equals via solver [2018-04-11 16:19:12,264 INFO L700 Elim1Store]: detected not equals via solver [2018-04-11 16:19:12,265 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 3 select indices, 3 select index equivalence classes, 4 disjoint index pairs (out of 3 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 28 treesize of output 61 [2018-04-11 16:19:12,266 INFO L267 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2018-04-11 16:19:12,277 INFO L267 ElimStorePlain]: Start of recursive call 1: 1 dim-0 vars, 1 dim-1 vars, End of recursive call: 1 dim-0 vars, and 1 xjuncts. [2018-04-11 16:19:12,277 INFO L202 ElimStorePlain]: Needed 2 recursive calls to eliminate 2 variables, input treesize:59, output treesize:67 [2018-04-11 16:19:12,334 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 13 treesize of output 16 [2018-04-11 16:19:12,336 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 16 treesize of output 15 [2018-04-11 16:19:12,337 INFO L267 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 1 xjuncts. [2018-04-11 16:19:12,339 INFO L267 ElimStorePlain]: Start of recursive call 2: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-04-11 16:19:12,363 INFO L700 Elim1Store]: detected not equals via solver [2018-04-11 16:19:12,367 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 2 disjoint index pairs (out of 1 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 69 treesize of output 70 [2018-04-11 16:19:12,370 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 2 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 10 treesize of output 9 [2018-04-11 16:19:12,370 INFO L267 ElimStorePlain]: Start of recursive call 5: End of recursive call: and 1 xjuncts. [2018-04-11 16:19:12,380 INFO L267 ElimStorePlain]: Start of recursive call 4: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-04-11 16:19:12,399 INFO L267 ElimStorePlain]: Start of recursive call 1: 2 dim-0 vars, 2 dim-2 vars, End of recursive call: 1 dim-0 vars, and 1 xjuncts. [2018-04-11 16:19:12,399 INFO L202 ElimStorePlain]: Needed 5 recursive calls to eliminate 4 variables, input treesize:95, output treesize:97 [2018-04-11 16:19:12,430 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 31 treesize of output 15 [2018-04-11 16:19:12,432 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 15 treesize of output 3 [2018-04-11 16:19:12,432 INFO L267 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 1 xjuncts. [2018-04-11 16:19:12,434 INFO L267 ElimStorePlain]: Start of recursive call 2: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-04-11 16:19:12,451 INFO L267 ElimStorePlain]: Start of recursive call 1: 2 dim-0 vars, 1 dim-2 vars, End of recursive call: 2 dim-0 vars, and 1 xjuncts. [2018-04-11 16:19:12,451 INFO L202 ElimStorePlain]: Needed 3 recursive calls to eliminate 3 variables, input treesize:136, output treesize:109 [2018-04-11 16:19:12,540 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 3 select indices, 3 select index equivalence classes, 3 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 0 case distinctions, treesize of input 112 treesize of output 85 [2018-04-11 16:19:12,542 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 20 treesize of output 19 [2018-04-11 16:19:12,542 INFO L267 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 1 xjuncts. [2018-04-11 16:19:12,550 INFO L267 ElimStorePlain]: Start of recursive call 2: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-04-11 16:19:12,561 INFO L267 ElimStorePlain]: Start of recursive call 1: 2 dim-0 vars, 1 dim-2 vars, End of recursive call: 2 dim-0 vars, and 1 xjuncts. [2018-04-11 16:19:12,562 INFO L202 ElimStorePlain]: Needed 3 recursive calls to eliminate 3 variables, input treesize:126, output treesize:110 [2018-04-11 16:19:12,624 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 3 select indices, 3 select index equivalence classes, 3 disjoint index pairs (out of 3 index pairs), introduced 5 new quantified variables, introduced 0 case distinctions, treesize of input 103 treesize of output 71 [2018-04-11 16:19:12,627 INFO L682 Elim1Store]: detected equality via solver [2018-04-11 16:19:12,627 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 2 select indices, 2 select index equivalence classes, 2 disjoint index pairs (out of 1 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 35 treesize of output 23 [2018-04-11 16:19:12,627 INFO L267 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 1 xjuncts. [2018-04-11 16:19:12,634 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 2 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 26 treesize of output 14 [2018-04-11 16:19:12,634 INFO L267 ElimStorePlain]: Start of recursive call 4: 1 dim-0 vars, End of recursive call: 1 dim-0 vars, and 1 xjuncts. [2018-04-11 16:19:12,639 INFO L267 ElimStorePlain]: Start of recursive call 2: 2 dim-1 vars, End of recursive call: 1 dim-0 vars, and 1 xjuncts. [2018-04-11 16:19:12,656 INFO L267 ElimStorePlain]: Start of recursive call 1: 3 dim-0 vars, 1 dim-2 vars, End of recursive call: 2 dim-0 vars, and 1 xjuncts. [2018-04-11 16:19:12,656 INFO L202 ElimStorePlain]: Needed 4 recursive calls to eliminate 4 variables, input treesize:114, output treesize:28 [2018-04-11 16:19:12,710 INFO L134 CoverageAnalysis]: Checked inductivity of 22 backedges. 0 proven. 22 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-04-11 16:19:12,710 INFO L320 seRefinementStrategy]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2018-04-11 16:19:12,710 INFO L335 seRefinementStrategy]: Number of different interpolants: perfect sequences [] imperfect sequences [19] total 19 [2018-04-11 16:19:12,711 INFO L442 AbstractCegarLoop]: Interpolant automaton has 20 states [2018-04-11 16:19:12,711 INFO L132 InterpolantAutomaton]: Constructing interpolant automaton starting with 20 interpolants. [2018-04-11 16:19:12,711 INFO L133 InterpolantAutomaton]: CoverageRelationStatistics Valid=65, Invalid=315, Unknown=0, NotChecked=0, Total=380 [2018-04-11 16:19:12,711 INFO L87 Difference]: Start difference. First operand 89 states and 96 transitions. Second operand 20 states. [2018-04-11 16:19:13,871 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-04-11 16:19:13,871 INFO L93 Difference]: Finished difference Result 141 states and 152 transitions. [2018-04-11 16:19:13,871 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 21 states. [2018-04-11 16:19:13,871 INFO L78 Accepts]: Start accepts. Automaton has 20 states. Word has length 47 [2018-04-11 16:19:13,871 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-04-11 16:19:13,872 INFO L225 Difference]: With dead ends: 141 [2018-04-11 16:19:13,872 INFO L226 Difference]: Without dead ends: 141 [2018-04-11 16:19:13,873 INFO L567 BasicCegarLoop]: 0 DeclaredPredicates, 64 GetRequests, 27 SyntacticMatches, 1 SemanticMatches, 36 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 278 ImplicationChecksByTransitivity, 0.9s TimeCoverageRelationStatistics Valid=253, Invalid=1153, Unknown=0, NotChecked=0, Total=1406 [2018-04-11 16:19:13,873 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 141 states. [2018-04-11 16:19:13,875 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 141 to 112. [2018-04-11 16:19:13,875 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 112 states. [2018-04-11 16:19:13,876 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 112 states to 112 states and 123 transitions. [2018-04-11 16:19:13,876 INFO L78 Accepts]: Start accepts. Automaton has 112 states and 123 transitions. Word has length 47 [2018-04-11 16:19:13,876 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-04-11 16:19:13,876 INFO L459 AbstractCegarLoop]: Abstraction has 112 states and 123 transitions. [2018-04-11 16:19:13,876 INFO L460 AbstractCegarLoop]: Interpolant automaton has 20 states. [2018-04-11 16:19:13,876 INFO L276 IsEmpty]: Start isEmpty. Operand 112 states and 123 transitions. [2018-04-11 16:19:13,877 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 48 [2018-04-11 16:19:13,878 INFO L347 BasicCegarLoop]: Found error trace [2018-04-11 16:19:13,878 INFO L355 BasicCegarLoop]: trace histogram [3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-04-11 16:19:13,878 INFO L408 AbstractCegarLoop]: === Iteration 14 === [mainErr5RequiresViolation, mainErr13RequiresViolation, mainErr1RequiresViolation, mainErr9RequiresViolation, mainErr0RequiresViolation, mainErr18EnsuresViolationMEMORY_LEAK, mainErr17AssertViolationMEMORY_FREE, mainErr3RequiresViolation, mainErr7RequiresViolation, mainErr11RequiresViolation, mainErr8RequiresViolation, mainErr10RequiresViolation, mainErr15RequiresViolation, mainErr2RequiresViolation, mainErr4RequiresViolation, mainErr12RequiresViolation, mainErr6RequiresViolation, mainErr16AssertViolationMEMORY_FREE, mainErr14RequiresViolation]=== [2018-04-11 16:19:13,878 INFO L82 PathProgramCache]: Analyzing trace with hash -880582592, now seen corresponding path program 2 times [2018-04-11 16:19:13,878 INFO L213 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS_NO_ARRAY [2018-04-11 16:19:13,878 INFO L68 tionRefinementEngine]: Using refinement strategy SmtInterpolRefinementStrategy [2018-04-11 16:19:13,879 INFO L119 rtionOrderModulation]: Craig nested/tree interpolation forces the following order [2018-04-11 16:19:13,879 INFO L101 rtionOrderModulation]: Changing assertion order to NOT_INCREMENTALLY [2018-04-11 16:19:13,879 INFO L119 rtionOrderModulation]: Craig nested/tree interpolation forces the following order [2018-04-11 16:19:13,892 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-04-11 16:19:13,893 WARN L137 erpolLogProxyWrapper]: Using partial proofs (cut at CNF-level). Set option :produce-proofs to true to get complete proofs. [2018-04-11 16:19:13,899 INFO L431 seRefinementStrategy]: Interpolation failed due to KNOWN_IGNORE: Unknown lemma type! [2018-04-11 16:19:13,899 INFO L308 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2018-04-11 16:19:13,899 INFO L213 ckRefinementStrategy]: Switched to mode SMTINTERPOL_FP [2018-04-11 16:19:13,900 INFO L103 rtionOrderModulation]: Keeping assertion order OUTSIDE_LOOP_FIRST1 [2018-04-11 16:19:13,935 INFO L242 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2018-04-11 16:19:13,935 INFO L243 tOrderPrioritization]: Conjunction of SSA is unsat [2018-04-11 16:19:13,940 INFO L270 TraceCheckSpWp]: Computing forward predicates... [2018-04-11 16:19:13,956 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 6 treesize of output 5 [2018-04-11 16:19:13,956 INFO L267 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2018-04-11 16:19:13,962 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 6 treesize of output 5 [2018-04-11 16:19:13,962 INFO L267 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 1 xjuncts. [2018-04-11 16:19:13,966 INFO L267 ElimStorePlain]: Start of recursive call 1: 2 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-04-11 16:19:13,967 INFO L202 ElimStorePlain]: Needed 3 recursive calls to eliminate 2 variables, input treesize:16, output treesize:14 [2018-04-11 16:19:14,008 INFO L700 Elim1Store]: detected not equals via solver [2018-04-11 16:19:14,009 INFO L700 Elim1Store]: detected not equals via solver [2018-04-11 16:19:14,010 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 2 select indices, 2 select index equivalence classes, 2 disjoint index pairs (out of 1 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 17 treesize of output 24 [2018-04-11 16:19:14,010 INFO L267 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2018-04-11 16:19:14,020 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 12 treesize of output 15 [2018-04-11 16:19:14,020 INFO L267 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 1 xjuncts. [2018-04-11 16:19:14,033 INFO L267 ElimStorePlain]: Start of recursive call 1: 2 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-04-11 16:19:14,033 INFO L202 ElimStorePlain]: Needed 3 recursive calls to eliminate 2 variables, input treesize:40, output treesize:37 [2018-04-11 16:19:14,059 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 2 select indices, 2 select index equivalence classes, 1 disjoint index pairs (out of 1 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 18 treesize of output 8 [2018-04-11 16:19:14,060 INFO L267 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2018-04-11 16:19:14,071 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 13 treesize of output 10 [2018-04-11 16:19:14,073 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 10 treesize of output 9 [2018-04-11 16:19:14,073 INFO L267 ElimStorePlain]: Start of recursive call 4: End of recursive call: and 1 xjuncts. [2018-04-11 16:19:14,074 INFO L267 ElimStorePlain]: Start of recursive call 3: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-04-11 16:19:14,084 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 13 treesize of output 10 [2018-04-11 16:19:14,101 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 10 treesize of output 9 [2018-04-11 16:19:14,101 INFO L267 ElimStorePlain]: Start of recursive call 6: End of recursive call: and 1 xjuncts. [2018-04-11 16:19:14,115 INFO L267 ElimStorePlain]: Start of recursive call 5: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-04-11 16:19:14,128 INFO L267 ElimStorePlain]: Start of recursive call 1: 1 dim-0 vars, 1 dim-1 vars, 2 dim-2 vars, End of recursive call: and 1 xjuncts. [2018-04-11 16:19:14,128 INFO L202 ElimStorePlain]: Needed 6 recursive calls to eliminate 4 variables, input treesize:67, output treesize:48 [2018-04-11 16:19:14,219 INFO L700 Elim1Store]: detected not equals via solver [2018-04-11 16:19:14,220 INFO L700 Elim1Store]: detected not equals via solver [2018-04-11 16:19:14,221 INFO L700 Elim1Store]: detected not equals via solver [2018-04-11 16:19:14,222 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 3 select indices, 3 select index equivalence classes, 4 disjoint index pairs (out of 3 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 22 treesize of output 32 [2018-04-11 16:19:14,223 INFO L267 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2018-04-11 16:19:14,238 INFO L267 ElimStorePlain]: Start of recursive call 1: 1 dim-0 vars, 1 dim-1 vars, End of recursive call: 1 dim-0 vars, and 1 xjuncts. [2018-04-11 16:19:14,239 INFO L202 ElimStorePlain]: Needed 2 recursive calls to eliminate 2 variables, input treesize:65, output treesize:58 [2018-04-11 16:19:14,295 INFO L700 Elim1Store]: detected not equals via solver [2018-04-11 16:19:14,299 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 2 disjoint index pairs (out of 1 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 43 treesize of output 44 [2018-04-11 16:19:14,302 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 2 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 10 treesize of output 9 [2018-04-11 16:19:14,303 INFO L267 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 1 xjuncts. [2018-04-11 16:19:14,310 INFO L267 ElimStorePlain]: Start of recursive call 2: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-04-11 16:19:14,333 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 2 disjoint index pairs (out of 1 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 23 treesize of output 30 [2018-04-11 16:19:14,336 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 16 treesize of output 15 [2018-04-11 16:19:14,336 INFO L267 ElimStorePlain]: Start of recursive call 5: End of recursive call: and 1 xjuncts. [2018-04-11 16:19:14,342 INFO L267 ElimStorePlain]: Start of recursive call 4: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-04-11 16:19:14,362 INFO L267 ElimStorePlain]: Start of recursive call 1: 2 dim-0 vars, 2 dim-2 vars, End of recursive call: 1 dim-0 vars, and 1 xjuncts. [2018-04-11 16:19:14,362 INFO L202 ElimStorePlain]: Needed 5 recursive calls to eliminate 4 variables, input treesize:88, output treesize:83 [2018-04-11 16:19:14,485 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 3 select indices, 3 select index equivalence classes, 3 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 0 case distinctions, treesize of input 175 treesize of output 142 [2018-04-11 16:19:14,488 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 34 treesize of output 33 [2018-04-11 16:19:14,489 INFO L267 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 1 xjuncts. [2018-04-11 16:19:14,501 INFO L267 ElimStorePlain]: Start of recursive call 2: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-04-11 16:19:14,529 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 3 select indices, 3 select index equivalence classes, 3 disjoint index pairs (out of 3 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 107 treesize of output 140 [2018-04-11 16:19:14,531 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 34 treesize of output 33 [2018-04-11 16:19:14,532 INFO L267 ElimStorePlain]: Start of recursive call 5: End of recursive call: and 1 xjuncts. [2018-04-11 16:19:14,542 INFO L267 ElimStorePlain]: Start of recursive call 4: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-04-11 16:19:14,558 INFO L267 ElimStorePlain]: Start of recursive call 1: 2 dim-0 vars, 2 dim-2 vars, End of recursive call: 2 dim-0 vars, and 1 xjuncts. [2018-04-11 16:19:14,558 INFO L202 ElimStorePlain]: Needed 5 recursive calls to eliminate 4 variables, input treesize:196, output treesize:164 [2018-04-11 16:19:14,662 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 3 select indices, 3 select index equivalence classes, 3 disjoint index pairs (out of 3 index pairs), introduced 5 new quantified variables, introduced 0 case distinctions, treesize of input 150 treesize of output 112 [2018-04-11 16:19:14,664 INFO L682 Elim1Store]: detected equality via solver [2018-04-11 16:19:14,665 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 2 select indices, 2 select index equivalence classes, 2 disjoint index pairs (out of 1 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 90 treesize of output 66 [2018-04-11 16:19:14,665 INFO L267 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 1 xjuncts. [2018-04-11 16:19:14,678 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 13 treesize of output 1 [2018-04-11 16:19:14,678 INFO L267 ElimStorePlain]: Start of recursive call 4: End of recursive call: and 1 xjuncts. [2018-04-11 16:19:14,689 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 2 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 36 treesize of output 24 [2018-04-11 16:19:14,689 INFO L267 ElimStorePlain]: Start of recursive call 5: 1 dim-0 vars, End of recursive call: 1 dim-0 vars, and 1 xjuncts. [2018-04-11 16:19:14,698 INFO L267 ElimStorePlain]: Start of recursive call 2: 3 dim-1 vars, End of recursive call: 1 dim-0 vars, and 1 xjuncts. [2018-04-11 16:19:14,717 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 3 select indices, 3 select index equivalence classes, 3 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 0 case distinctions, treesize of input 41 treesize of output 43 [2018-04-11 16:19:14,719 INFO L682 Elim1Store]: detected equality via solver [2018-04-11 16:19:14,720 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 13 treesize of output 9 [2018-04-11 16:19:14,720 INFO L267 ElimStorePlain]: Start of recursive call 7: End of recursive call: and 1 xjuncts. [2018-04-11 16:19:14,730 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 19 treesize of output 5 [2018-04-11 16:19:14,730 INFO L267 ElimStorePlain]: Start of recursive call 8: End of recursive call: and 1 xjuncts. [2018-04-11 16:19:14,735 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 5 treesize of output 1 [2018-04-11 16:19:14,735 INFO L267 ElimStorePlain]: Start of recursive call 9: End of recursive call: and 1 xjuncts. [2018-04-11 16:19:14,736 INFO L267 ElimStorePlain]: Start of recursive call 6: 3 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-04-11 16:19:14,747 INFO L267 ElimStorePlain]: Start of recursive call 1: 3 dim-0 vars, 2 dim-2 vars, End of recursive call: and 1 xjuncts. [2018-04-11 16:19:14,747 INFO L202 ElimStorePlain]: Needed 9 recursive calls to eliminate 5 variables, input treesize:175, output treesize:9 [2018-04-11 16:19:14,818 INFO L134 CoverageAnalysis]: Checked inductivity of 22 backedges. 0 proven. 22 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-04-11 16:19:14,818 INFO L320 seRefinementStrategy]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2018-04-11 16:19:14,818 INFO L335 seRefinementStrategy]: Number of different interpolants: perfect sequences [] imperfect sequences [20] total 20 [2018-04-11 16:19:14,818 INFO L442 AbstractCegarLoop]: Interpolant automaton has 21 states [2018-04-11 16:19:14,819 INFO L132 InterpolantAutomaton]: Constructing interpolant automaton starting with 21 interpolants. [2018-04-11 16:19:14,819 INFO L133 InterpolantAutomaton]: CoverageRelationStatistics Valid=49, Invalid=371, Unknown=0, NotChecked=0, Total=420 [2018-04-11 16:19:14,819 INFO L87 Difference]: Start difference. First operand 112 states and 123 transitions. Second operand 21 states. [2018-04-11 16:19:16,505 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-04-11 16:19:16,505 INFO L93 Difference]: Finished difference Result 154 states and 165 transitions. [2018-04-11 16:19:16,505 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 25 states. [2018-04-11 16:19:16,505 INFO L78 Accepts]: Start accepts. Automaton has 21 states. Word has length 47 [2018-04-11 16:19:16,505 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-04-11 16:19:16,506 INFO L225 Difference]: With dead ends: 154 [2018-04-11 16:19:16,506 INFO L226 Difference]: Without dead ends: 154 [2018-04-11 16:19:16,506 INFO L567 BasicCegarLoop]: 0 DeclaredPredicates, 66 GetRequests, 27 SyntacticMatches, 0 SemanticMatches, 39 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 258 ImplicationChecksByTransitivity, 1.3s TimeCoverageRelationStatistics Valid=257, Invalid=1383, Unknown=0, NotChecked=0, Total=1640 [2018-04-11 16:19:16,506 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 154 states. [2018-04-11 16:19:16,507 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 154 to 111. [2018-04-11 16:19:16,507 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 111 states. [2018-04-11 16:19:16,508 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 111 states to 111 states and 121 transitions. [2018-04-11 16:19:16,508 INFO L78 Accepts]: Start accepts. Automaton has 111 states and 121 transitions. Word has length 47 [2018-04-11 16:19:16,508 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-04-11 16:19:16,508 INFO L459 AbstractCegarLoop]: Abstraction has 111 states and 121 transitions. [2018-04-11 16:19:16,508 INFO L460 AbstractCegarLoop]: Interpolant automaton has 21 states. [2018-04-11 16:19:16,508 INFO L276 IsEmpty]: Start isEmpty. Operand 111 states and 121 transitions. [2018-04-11 16:19:16,509 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 48 [2018-04-11 16:19:16,509 INFO L347 BasicCegarLoop]: Found error trace [2018-04-11 16:19:16,509 INFO L355 BasicCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-04-11 16:19:16,509 INFO L408 AbstractCegarLoop]: === Iteration 15 === [mainErr5RequiresViolation, mainErr13RequiresViolation, mainErr1RequiresViolation, mainErr9RequiresViolation, mainErr0RequiresViolation, mainErr18EnsuresViolationMEMORY_LEAK, mainErr17AssertViolationMEMORY_FREE, mainErr3RequiresViolation, mainErr7RequiresViolation, mainErr11RequiresViolation, mainErr8RequiresViolation, mainErr10RequiresViolation, mainErr15RequiresViolation, mainErr2RequiresViolation, mainErr4RequiresViolation, mainErr12RequiresViolation, mainErr6RequiresViolation, mainErr16AssertViolationMEMORY_FREE, mainErr14RequiresViolation]=== [2018-04-11 16:19:16,509 INFO L82 PathProgramCache]: Analyzing trace with hash -25781595, now seen corresponding path program 1 times [2018-04-11 16:19:16,509 INFO L213 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS_NO_ARRAY [2018-04-11 16:19:16,509 INFO L68 tionRefinementEngine]: Using refinement strategy SmtInterpolRefinementStrategy [2018-04-11 16:19:16,509 INFO L119 rtionOrderModulation]: Craig nested/tree interpolation forces the following order [2018-04-11 16:19:16,509 INFO L101 rtionOrderModulation]: Changing assertion order to NOT_INCREMENTALLY [2018-04-11 16:19:16,510 INFO L119 rtionOrderModulation]: Craig nested/tree interpolation forces the following order [2018-04-11 16:19:16,516 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-04-11 16:19:16,516 WARN L137 erpolLogProxyWrapper]: Using partial proofs (cut at CNF-level). Set option :produce-proofs to true to get complete proofs. [2018-04-11 16:19:16,521 INFO L431 seRefinementStrategy]: Interpolation failed due to KNOWN_IGNORE: Unknown lemma type! [2018-04-11 16:19:16,521 INFO L308 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2018-04-11 16:19:16,521 INFO L213 ckRefinementStrategy]: Switched to mode SMTINTERPOL_FP [2018-04-11 16:19:16,521 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-04-11 16:19:16,536 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-04-11 16:19:16,539 INFO L270 TraceCheckSpWp]: Computing forward predicates... [2018-04-11 16:19:16,558 INFO L700 Elim1Store]: detected not equals via solver [2018-04-11 16:19:16,559 INFO L700 Elim1Store]: detected not equals via solver [2018-04-11 16:19:16,560 INFO L700 Elim1Store]: detected not equals via solver [2018-04-11 16:19:16,560 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 2 select indices, 2 select index equivalence classes, 3 disjoint index pairs (out of 1 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 17 treesize of output 28 [2018-04-11 16:19:16,561 INFO L267 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2018-04-11 16:19:16,566 INFO L267 ElimStorePlain]: Start of recursive call 1: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-04-11 16:19:16,566 INFO L202 ElimStorePlain]: Needed 2 recursive calls to eliminate 1 variables, input treesize:26, output treesize:24 [2018-04-11 16:19:16,588 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 13 treesize of output 10 [2018-04-11 16:19:16,589 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 10 treesize of output 9 [2018-04-11 16:19:16,589 INFO L267 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 1 xjuncts. [2018-04-11 16:19:16,592 INFO L267 ElimStorePlain]: Start of recursive call 2: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-04-11 16:19:16,598 INFO L267 ElimStorePlain]: Start of recursive call 1: 1 dim-0 vars, 1 dim-2 vars, End of recursive call: and 1 xjuncts. [2018-04-11 16:19:16,598 INFO L202 ElimStorePlain]: Needed 3 recursive calls to eliminate 2 variables, input treesize:37, output treesize:36 [2018-04-11 16:19:16,642 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 1 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 47 treesize of output 41 [2018-04-11 16:19:16,644 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 16 treesize of output 15 [2018-04-11 16:19:16,645 INFO L267 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 1 xjuncts. [2018-04-11 16:19:16,650 INFO L267 ElimStorePlain]: Start of recursive call 2: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-04-11 16:19:16,661 INFO L267 ElimStorePlain]: Start of recursive call 1: 2 dim-0 vars, 1 dim-2 vars, End of recursive call: 2 dim-0 vars, and 1 xjuncts. [2018-04-11 16:19:16,661 INFO L202 ElimStorePlain]: Needed 3 recursive calls to eliminate 3 variables, input treesize:58, output treesize:48 [2018-04-11 16:19:16,705 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 2 select indices, 2 select index equivalence classes, 1 disjoint index pairs (out of 1 index pairs), introduced 3 new quantified variables, introduced 0 case distinctions, treesize of input 46 treesize of output 39 [2018-04-11 16:19:16,711 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 2 select indices, 2 select index equivalence classes, 1 disjoint index pairs (out of 1 index pairs), introduced 1 new quantified variables, introduced 1 case distinctions, treesize of input 25 treesize of output 22 [2018-04-11 16:19:16,711 INFO L267 ElimStorePlain]: Start of recursive call 3: 1 dim-0 vars, End of recursive call: 1 dim-0 vars, and 2 xjuncts. [2018-04-11 16:19:16,721 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 7 treesize of output 1 [2018-04-11 16:19:16,721 INFO L267 ElimStorePlain]: Start of recursive call 4: End of recursive call: and 1 xjuncts. [2018-04-11 16:19:16,727 INFO L267 ElimStorePlain]: Start of recursive call 2: 2 dim-1 vars, End of recursive call: 1 dim-0 vars, and 2 xjuncts. [2018-04-11 16:19:16,737 INFO L267 ElimStorePlain]: Start of recursive call 1: 2 dim-0 vars, 1 dim-2 vars, End of recursive call: 1 dim-0 vars, and 2 xjuncts. [2018-04-11 16:19:16,737 INFO L202 ElimStorePlain]: Needed 4 recursive calls to eliminate 3 variables, input treesize:57, output treesize:40 [2018-04-11 16:19:16,816 INFO L700 Elim1Store]: detected not equals via solver [2018-04-11 16:19:16,816 INFO L700 Elim1Store]: detected not equals via solver [2018-04-11 16:19:16,817 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 2 select indices, 2 select index equivalence classes, 3 disjoint index pairs (out of 1 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 17 treesize of output 28 [2018-04-11 16:19:16,818 INFO L267 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2018-04-11 16:19:16,822 INFO L267 ElimStorePlain]: Start of recursive call 1: 1 dim-0 vars, 1 dim-1 vars, End of recursive call: 1 dim-0 vars, and 1 xjuncts. [2018-04-11 16:19:16,822 INFO L202 ElimStorePlain]: Needed 2 recursive calls to eliminate 2 variables, input treesize:21, output treesize:11 [2018-04-11 16:19:16,857 INFO L134 CoverageAnalysis]: Checked inductivity of 9 backedges. 0 proven. 7 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2018-04-11 16:19:16,857 INFO L320 seRefinementStrategy]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2018-04-11 16:19:16,857 INFO L335 seRefinementStrategy]: Number of different interpolants: perfect sequences [] imperfect sequences [17] total 17 [2018-04-11 16:19:16,857 INFO L442 AbstractCegarLoop]: Interpolant automaton has 18 states [2018-04-11 16:19:16,858 INFO L132 InterpolantAutomaton]: Constructing interpolant automaton starting with 18 interpolants. [2018-04-11 16:19:16,858 INFO L133 InterpolantAutomaton]: CoverageRelationStatistics Valid=43, Invalid=263, Unknown=0, NotChecked=0, Total=306 [2018-04-11 16:19:16,858 INFO L87 Difference]: Start difference. First operand 111 states and 121 transitions. Second operand 18 states. [2018-04-11 16:19:17,422 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-04-11 16:19:17,422 INFO L93 Difference]: Finished difference Result 139 states and 149 transitions. [2018-04-11 16:19:17,423 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 21 states. [2018-04-11 16:19:17,423 INFO L78 Accepts]: Start accepts. Automaton has 18 states. Word has length 47 [2018-04-11 16:19:17,423 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-04-11 16:19:17,423 INFO L225 Difference]: With dead ends: 139 [2018-04-11 16:19:17,423 INFO L226 Difference]: Without dead ends: 139 [2018-04-11 16:19:17,424 INFO L567 BasicCegarLoop]: 0 DeclaredPredicates, 64 GetRequests, 30 SyntacticMatches, 0 SemanticMatches, 34 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 201 ImplicationChecksByTransitivity, 0.5s TimeCoverageRelationStatistics Valid=229, Invalid=1031, Unknown=0, NotChecked=0, Total=1260 [2018-04-11 16:19:17,424 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 139 states. [2018-04-11 16:19:17,425 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 139 to 123. [2018-04-11 16:19:17,426 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 123 states. [2018-04-11 16:19:17,426 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 123 states to 123 states and 135 transitions. [2018-04-11 16:19:17,426 INFO L78 Accepts]: Start accepts. Automaton has 123 states and 135 transitions. Word has length 47 [2018-04-11 16:19:17,426 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-04-11 16:19:17,426 INFO L459 AbstractCegarLoop]: Abstraction has 123 states and 135 transitions. [2018-04-11 16:19:17,427 INFO L460 AbstractCegarLoop]: Interpolant automaton has 18 states. [2018-04-11 16:19:17,427 INFO L276 IsEmpty]: Start isEmpty. Operand 123 states and 135 transitions. [2018-04-11 16:19:17,427 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 48 [2018-04-11 16:19:17,427 INFO L347 BasicCegarLoop]: Found error trace [2018-04-11 16:19:17,428 INFO L355 BasicCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-04-11 16:19:17,428 INFO L408 AbstractCegarLoop]: === Iteration 16 === [mainErr5RequiresViolation, mainErr13RequiresViolation, mainErr1RequiresViolation, mainErr9RequiresViolation, mainErr0RequiresViolation, mainErr18EnsuresViolationMEMORY_LEAK, mainErr17AssertViolationMEMORY_FREE, mainErr3RequiresViolation, mainErr7RequiresViolation, mainErr11RequiresViolation, mainErr8RequiresViolation, mainErr10RequiresViolation, mainErr15RequiresViolation, mainErr2RequiresViolation, mainErr4RequiresViolation, mainErr12RequiresViolation, mainErr6RequiresViolation, mainErr16AssertViolationMEMORY_FREE, mainErr14RequiresViolation]=== [2018-04-11 16:19:17,428 INFO L82 PathProgramCache]: Analyzing trace with hash -25781594, now seen corresponding path program 1 times [2018-04-11 16:19:17,428 INFO L213 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS_NO_ARRAY [2018-04-11 16:19:17,428 INFO L68 tionRefinementEngine]: Using refinement strategy SmtInterpolRefinementStrategy [2018-04-11 16:19:17,429 INFO L119 rtionOrderModulation]: Craig nested/tree interpolation forces the following order [2018-04-11 16:19:17,429 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-04-11 16:19:17,429 INFO L119 rtionOrderModulation]: Craig nested/tree interpolation forces the following order [2018-04-11 16:19:17,435 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-04-11 16:19:17,436 WARN L137 erpolLogProxyWrapper]: Using partial proofs (cut at CNF-level). Set option :produce-proofs to true to get complete proofs. [2018-04-11 16:19:17,440 INFO L431 seRefinementStrategy]: Interpolation failed due to KNOWN_IGNORE: Unknown lemma type! [2018-04-11 16:19:17,441 INFO L308 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2018-04-11 16:19:17,441 INFO L213 ckRefinementStrategy]: Switched to mode SMTINTERPOL_FP [2018-04-11 16:19:17,441 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-04-11 16:19:17,454 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-04-11 16:19:17,456 INFO L270 TraceCheckSpWp]: Computing forward predicates... [2018-04-11 16:19:17,539 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 19 treesize of output 15 [2018-04-11 16:19:17,543 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 0 new quantified variables, introduced 1 case distinctions, treesize of input 15 treesize of output 12 [2018-04-11 16:19:17,543 INFO L267 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 2 xjuncts. [2018-04-11 16:19:17,546 INFO L267 ElimStorePlain]: Start of recursive call 2: 1 dim-1 vars, End of recursive call: and 2 xjuncts. [2018-04-11 16:19:17,553 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 19 treesize of output 15 [2018-04-11 16:19:17,558 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 0 new quantified variables, introduced 1 case distinctions, treesize of input 15 treesize of output 12 [2018-04-11 16:19:17,558 INFO L267 ElimStorePlain]: Start of recursive call 5: End of recursive call: and 2 xjuncts. [2018-04-11 16:19:17,560 INFO L267 ElimStorePlain]: Start of recursive call 4: 1 dim-1 vars, End of recursive call: and 2 xjuncts. [2018-04-11 16:19:17,567 INFO L267 ElimStorePlain]: Start of recursive call 1: 2 dim-0 vars, 2 dim-2 vars, End of recursive call: and 3 xjuncts. [2018-04-11 16:19:17,567 INFO L202 ElimStorePlain]: Needed 5 recursive calls to eliminate 4 variables, input treesize:43, output treesize:16 [2018-04-11 16:19:17,618 INFO L134 CoverageAnalysis]: Checked inductivity of 9 backedges. 1 proven. 8 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-04-11 16:19:17,618 INFO L320 seRefinementStrategy]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2018-04-11 16:19:17,618 INFO L335 seRefinementStrategy]: Number of different interpolants: perfect sequences [] imperfect sequences [15] total 15 [2018-04-11 16:19:17,618 INFO L442 AbstractCegarLoop]: Interpolant automaton has 15 states [2018-04-11 16:19:17,618 INFO L132 InterpolantAutomaton]: Constructing interpolant automaton starting with 15 interpolants. [2018-04-11 16:19:17,618 INFO L133 InterpolantAutomaton]: CoverageRelationStatistics Valid=30, Invalid=180, Unknown=0, NotChecked=0, Total=210 [2018-04-11 16:19:17,618 INFO L87 Difference]: Start difference. First operand 123 states and 135 transitions. Second operand 15 states. [2018-04-11 16:19:17,983 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-04-11 16:19:17,983 INFO L93 Difference]: Finished difference Result 164 states and 176 transitions. [2018-04-11 16:19:17,983 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 17 states. [2018-04-11 16:19:17,983 INFO L78 Accepts]: Start accepts. Automaton has 15 states. Word has length 47 [2018-04-11 16:19:17,983 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-04-11 16:19:17,984 INFO L225 Difference]: With dead ends: 164 [2018-04-11 16:19:17,984 INFO L226 Difference]: Without dead ends: 164 [2018-04-11 16:19:17,984 INFO L567 BasicCegarLoop]: 0 DeclaredPredicates, 60 GetRequests, 33 SyntacticMatches, 0 SemanticMatches, 27 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 80 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=187, Invalid=625, Unknown=0, NotChecked=0, Total=812 [2018-04-11 16:19:17,984 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 164 states. [2018-04-11 16:19:17,986 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 164 to 140. [2018-04-11 16:19:17,986 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 140 states. [2018-04-11 16:19:17,987 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 140 states to 140 states and 153 transitions. [2018-04-11 16:19:17,987 INFO L78 Accepts]: Start accepts. Automaton has 140 states and 153 transitions. Word has length 47 [2018-04-11 16:19:17,987 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-04-11 16:19:17,987 INFO L459 AbstractCegarLoop]: Abstraction has 140 states and 153 transitions. [2018-04-11 16:19:17,988 INFO L460 AbstractCegarLoop]: Interpolant automaton has 15 states. [2018-04-11 16:19:17,988 INFO L276 IsEmpty]: Start isEmpty. Operand 140 states and 153 transitions. [2018-04-11 16:19:17,988 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 49 [2018-04-11 16:19:17,988 INFO L347 BasicCegarLoop]: Found error trace [2018-04-11 16:19:17,988 INFO L355 BasicCegarLoop]: trace histogram [2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-04-11 16:19:17,989 INFO L408 AbstractCegarLoop]: === Iteration 17 === [mainErr5RequiresViolation, mainErr13RequiresViolation, mainErr1RequiresViolation, mainErr9RequiresViolation, mainErr0RequiresViolation, mainErr18EnsuresViolationMEMORY_LEAK, mainErr17AssertViolationMEMORY_FREE, mainErr3RequiresViolation, mainErr7RequiresViolation, mainErr11RequiresViolation, mainErr8RequiresViolation, mainErr10RequiresViolation, mainErr15RequiresViolation, mainErr2RequiresViolation, mainErr4RequiresViolation, mainErr12RequiresViolation, mainErr6RequiresViolation, mainErr16AssertViolationMEMORY_FREE, mainErr14RequiresViolation]=== [2018-04-11 16:19:17,989 INFO L82 PathProgramCache]: Analyzing trace with hash -799230879, now seen corresponding path program 1 times [2018-04-11 16:19:17,989 INFO L213 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS_NO_ARRAY [2018-04-11 16:19:17,989 INFO L68 tionRefinementEngine]: Using refinement strategy SmtInterpolRefinementStrategy [2018-04-11 16:19:17,990 INFO L119 rtionOrderModulation]: Craig nested/tree interpolation forces the following order [2018-04-11 16:19:17,990 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-04-11 16:19:17,990 INFO L119 rtionOrderModulation]: Craig nested/tree interpolation forces the following order [2018-04-11 16:19:17,998 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-04-11 16:19:17,999 WARN L137 erpolLogProxyWrapper]: Using partial proofs (cut at CNF-level). Set option :produce-proofs to true to get complete proofs. [2018-04-11 16:19:18,010 INFO L431 seRefinementStrategy]: Interpolation failed due to KNOWN_IGNORE: Unknown lemma type! [2018-04-11 16:19:18,010 INFO L308 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2018-04-11 16:19:18,010 INFO L213 ckRefinementStrategy]: Switched to mode SMTINTERPOL_FP [2018-04-11 16:19:18,011 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-04-11 16:19:18,030 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-04-11 16:19:18,033 INFO L270 TraceCheckSpWp]: Computing forward predicates... [2018-04-11 16:19:18,036 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 6 treesize of output 5 [2018-04-11 16:19:18,036 INFO L267 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2018-04-11 16:19:18,051 INFO L267 ElimStorePlain]: Start of recursive call 1: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-04-11 16:19:18,051 INFO L202 ElimStorePlain]: Needed 2 recursive calls to eliminate 1 variables, input treesize:10, output treesize:9 [2018-04-11 16:19:18,074 INFO L700 Elim1Store]: detected not equals via solver [2018-04-11 16:19:18,075 INFO L700 Elim1Store]: detected not equals via solver [2018-04-11 16:19:18,075 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 2 select indices, 2 select index equivalence classes, 2 disjoint index pairs (out of 1 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 11 treesize of output 4 [2018-04-11 16:19:18,075 INFO L267 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2018-04-11 16:19:18,079 INFO L267 ElimStorePlain]: Start of recursive call 1: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-04-11 16:19:18,079 INFO L202 ElimStorePlain]: Needed 2 recursive calls to eliminate 1 variables, input treesize:26, output treesize:20 [2018-04-11 16:19:18,104 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 13 treesize of output 10 [2018-04-11 16:19:18,105 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 2 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 10 treesize of output 9 [2018-04-11 16:19:18,105 INFO L267 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 1 xjuncts. [2018-04-11 16:19:18,106 INFO L267 ElimStorePlain]: Start of recursive call 2: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-04-11 16:19:18,112 INFO L267 ElimStorePlain]: Start of recursive call 1: 1 dim-0 vars, 1 dim-2 vars, End of recursive call: and 1 xjuncts. [2018-04-11 16:19:18,112 INFO L202 ElimStorePlain]: Needed 3 recursive calls to eliminate 2 variables, input treesize:34, output treesize:33 [2018-04-11 16:19:18,151 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 2 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 46 treesize of output 40 [2018-04-11 16:19:18,152 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 16 treesize of output 15 [2018-04-11 16:19:18,153 INFO L267 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 1 xjuncts. [2018-04-11 16:19:18,156 INFO L267 ElimStorePlain]: Start of recursive call 2: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-04-11 16:19:18,160 INFO L267 ElimStorePlain]: Start of recursive call 1: 2 dim-0 vars, 1 dim-2 vars, End of recursive call: 2 dim-0 vars, and 1 xjuncts. [2018-04-11 16:19:18,161 INFO L202 ElimStorePlain]: Needed 3 recursive calls to eliminate 3 variables, input treesize:55, output treesize:45 [2018-04-11 16:19:18,195 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 2 select indices, 2 select index equivalence classes, 2 disjoint index pairs (out of 1 index pairs), introduced 3 new quantified variables, introduced 0 case distinctions, treesize of input 45 treesize of output 38 [2018-04-11 16:19:18,196 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 7 treesize of output 1 [2018-04-11 16:19:18,197 INFO L267 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 1 xjuncts. [2018-04-11 16:19:18,200 INFO L682 Elim1Store]: detected equality via solver [2018-04-11 16:19:18,201 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 2 select indices, 2 select index equivalence classes, 2 disjoint index pairs (out of 1 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 24 treesize of output 16 [2018-04-11 16:19:18,201 INFO L267 ElimStorePlain]: Start of recursive call 4: End of recursive call: and 1 xjuncts. [2018-04-11 16:19:18,203 INFO L267 ElimStorePlain]: Start of recursive call 2: 2 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-04-11 16:19:18,207 INFO L267 ElimStorePlain]: Start of recursive call 1: 4 dim-0 vars, 1 dim-2 vars, End of recursive call: and 1 xjuncts. [2018-04-11 16:19:18,207 INFO L202 ElimStorePlain]: Needed 4 recursive calls to eliminate 5 variables, input treesize:54, output treesize:4 [2018-04-11 16:19:18,229 INFO L134 CoverageAnalysis]: Checked inductivity of 8 backedges. 0 proven. 6 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2018-04-11 16:19:18,229 INFO L320 seRefinementStrategy]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2018-04-11 16:19:18,229 INFO L335 seRefinementStrategy]: Number of different interpolants: perfect sequences [] imperfect sequences [16] total 16 [2018-04-11 16:19:18,229 INFO L442 AbstractCegarLoop]: Interpolant automaton has 16 states [2018-04-11 16:19:18,230 INFO L132 InterpolantAutomaton]: Constructing interpolant automaton starting with 16 interpolants. [2018-04-11 16:19:18,230 INFO L133 InterpolantAutomaton]: CoverageRelationStatistics Valid=33, Invalid=207, Unknown=0, NotChecked=0, Total=240 [2018-04-11 16:19:18,230 INFO L87 Difference]: Start difference. First operand 140 states and 153 transitions. Second operand 16 states. [2018-04-11 16:19:18,771 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-04-11 16:19:18,772 INFO L93 Difference]: Finished difference Result 156 states and 168 transitions. [2018-04-11 16:19:18,772 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 20 states. [2018-04-11 16:19:18,772 INFO L78 Accepts]: Start accepts. Automaton has 16 states. Word has length 48 [2018-04-11 16:19:18,772 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-04-11 16:19:18,772 INFO L225 Difference]: With dead ends: 156 [2018-04-11 16:19:18,772 INFO L226 Difference]: Without dead ends: 156 [2018-04-11 16:19:18,773 INFO L567 BasicCegarLoop]: 0 DeclaredPredicates, 63 GetRequests, 33 SyntacticMatches, 0 SemanticMatches, 30 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 106 ImplicationChecksByTransitivity, 0.4s TimeCoverageRelationStatistics Valid=208, Invalid=784, Unknown=0, NotChecked=0, Total=992 [2018-04-11 16:19:18,773 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 156 states. [2018-04-11 16:19:18,774 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 156 to 140. [2018-04-11 16:19:18,774 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 140 states. [2018-04-11 16:19:18,774 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 140 states to 140 states and 152 transitions. [2018-04-11 16:19:18,774 INFO L78 Accepts]: Start accepts. Automaton has 140 states and 152 transitions. Word has length 48 [2018-04-11 16:19:18,774 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-04-11 16:19:18,774 INFO L459 AbstractCegarLoop]: Abstraction has 140 states and 152 transitions. [2018-04-11 16:19:18,774 INFO L460 AbstractCegarLoop]: Interpolant automaton has 16 states. [2018-04-11 16:19:18,775 INFO L276 IsEmpty]: Start isEmpty. Operand 140 states and 152 transitions. [2018-04-11 16:19:18,775 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 54 [2018-04-11 16:19:18,775 INFO L347 BasicCegarLoop]: Found error trace [2018-04-11 16:19:18,775 INFO L355 BasicCegarLoop]: trace histogram [3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-04-11 16:19:18,775 INFO L408 AbstractCegarLoop]: === Iteration 18 === [mainErr5RequiresViolation, mainErr13RequiresViolation, mainErr1RequiresViolation, mainErr9RequiresViolation, mainErr0RequiresViolation, mainErr18EnsuresViolationMEMORY_LEAK, mainErr17AssertViolationMEMORY_FREE, mainErr3RequiresViolation, mainErr7RequiresViolation, mainErr11RequiresViolation, mainErr8RequiresViolation, mainErr10RequiresViolation, mainErr15RequiresViolation, mainErr2RequiresViolation, mainErr4RequiresViolation, mainErr12RequiresViolation, mainErr6RequiresViolation, mainErr16AssertViolationMEMORY_FREE, mainErr14RequiresViolation]=== [2018-04-11 16:19:18,775 INFO L82 PathProgramCache]: Analyzing trace with hash -1842350163, now seen corresponding path program 4 times [2018-04-11 16:19:18,775 INFO L213 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS_NO_ARRAY [2018-04-11 16:19:18,775 INFO L68 tionRefinementEngine]: Using refinement strategy SmtInterpolRefinementStrategy [2018-04-11 16:19:18,776 INFO L119 rtionOrderModulation]: Craig nested/tree interpolation forces the following order [2018-04-11 16:19:18,776 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-04-11 16:19:18,776 INFO L119 rtionOrderModulation]: Craig nested/tree interpolation forces the following order [2018-04-11 16:19:18,785 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-04-11 16:19:18,786 WARN L137 erpolLogProxyWrapper]: Using partial proofs (cut at CNF-level). Set option :produce-proofs to true to get complete proofs. [2018-04-11 16:19:18,796 INFO L431 seRefinementStrategy]: Interpolation failed due to KNOWN_IGNORE: Unknown lemma type! [2018-04-11 16:19:18,796 INFO L308 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2018-04-11 16:19:18,796 INFO L213 ckRefinementStrategy]: Switched to mode SMTINTERPOL_FP [2018-04-11 16:19:18,797 INFO L103 rtionOrderModulation]: Keeping assertion order TERMS_WITH_SMALL_CONSTANTS_FIRST [2018-04-11 16:19:18,824 INFO L242 tOrderPrioritization]: Assert order TERMS_WITH_SMALL_CONSTANTS_FIRST issued 0 check-sat command(s) [2018-04-11 16:19:18,824 INFO L243 tOrderPrioritization]: Conjunction of SSA is unsat [2018-04-11 16:19:18,826 INFO L270 TraceCheckSpWp]: Computing forward predicates... [2018-04-11 16:19:18,828 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 6 treesize of output 5 [2018-04-11 16:19:18,828 INFO L267 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2018-04-11 16:19:18,830 INFO L267 ElimStorePlain]: Start of recursive call 1: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-04-11 16:19:18,830 INFO L202 ElimStorePlain]: Needed 2 recursive calls to eliminate 1 variables, input treesize:10, output treesize:9 [2018-04-11 16:19:18,847 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 6 treesize of output 5 [2018-04-11 16:19:18,847 INFO L267 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2018-04-11 16:19:18,855 INFO L700 Elim1Store]: detected not equals via solver [2018-04-11 16:19:18,855 INFO L700 Elim1Store]: detected not equals via solver [2018-04-11 16:19:18,856 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 2 select indices, 2 select index equivalence classes, 2 disjoint index pairs (out of 1 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 11 treesize of output 4 [2018-04-11 16:19:18,856 INFO L267 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 1 xjuncts. [2018-04-11 16:19:18,861 INFO L267 ElimStorePlain]: Start of recursive call 1: 2 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-04-11 16:19:18,861 INFO L202 ElimStorePlain]: Needed 3 recursive calls to eliminate 2 variables, input treesize:29, output treesize:22 [2018-04-11 16:19:18,892 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 13 treesize of output 10 [2018-04-11 16:19:18,893 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 10 treesize of output 9 [2018-04-11 16:19:18,894 INFO L267 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 1 xjuncts. [2018-04-11 16:19:18,895 INFO L267 ElimStorePlain]: Start of recursive call 2: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-04-11 16:19:18,906 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 13 treesize of output 10 [2018-04-11 16:19:18,908 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 10 treesize of output 9 [2018-04-11 16:19:18,908 INFO L267 ElimStorePlain]: Start of recursive call 5: End of recursive call: and 1 xjuncts. [2018-04-11 16:19:18,910 INFO L267 ElimStorePlain]: Start of recursive call 4: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-04-11 16:19:18,920 INFO L267 ElimStorePlain]: Start of recursive call 1: 1 dim-0 vars, 2 dim-2 vars, End of recursive call: and 1 xjuncts. [2018-04-11 16:19:18,920 INFO L202 ElimStorePlain]: Needed 5 recursive calls to eliminate 3 variables, input treesize:50, output treesize:45 [2018-04-11 16:19:18,974 INFO L700 Elim1Store]: detected not equals via solver [2018-04-11 16:19:18,975 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 1 select indices, 1 select index equivalence classes, 2 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 18 treesize of output 27 [2018-04-11 16:19:18,975 INFO L267 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2018-04-11 16:19:18,987 INFO L700 Elim1Store]: detected not equals via solver [2018-04-11 16:19:18,988 INFO L700 Elim1Store]: detected not equals via solver [2018-04-11 16:19:18,988 INFO L700 Elim1Store]: detected not equals via solver [2018-04-11 16:19:18,989 INFO L700 Elim1Store]: detected not equals via solver [2018-04-11 16:19:18,989 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 3 select indices, 3 select index equivalence classes, 4 disjoint index pairs (out of 3 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 22 treesize of output 46 [2018-04-11 16:19:18,989 INFO L267 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 1 xjuncts. [2018-04-11 16:19:19,002 INFO L267 ElimStorePlain]: Start of recursive call 1: 2 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-04-11 16:19:19,003 INFO L202 ElimStorePlain]: Needed 3 recursive calls to eliminate 2 variables, input treesize:79, output treesize:86 [2018-04-11 16:19:19,049 INFO L700 Elim1Store]: detected not equals via solver [2018-04-11 16:19:19,063 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 3 disjoint index pairs (out of 1 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 32 treesize of output 39 [2018-04-11 16:19:19,064 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 16 treesize of output 15 [2018-04-11 16:19:19,065 INFO L267 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 1 xjuncts. [2018-04-11 16:19:19,069 INFO L267 ElimStorePlain]: Start of recursive call 2: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-04-11 16:19:19,085 INFO L700 Elim1Store]: detected not equals via solver [2018-04-11 16:19:19,087 INFO L700 Elim1Store]: detected not equals via solver [2018-04-11 16:19:19,087 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 4 disjoint index pairs (out of 1 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 70 treesize of output 82 [2018-04-11 16:19:19,089 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 2 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 22 treesize of output 18 [2018-04-11 16:19:19,089 INFO L267 ElimStorePlain]: Start of recursive call 5: End of recursive call: and 1 xjuncts. [2018-04-11 16:19:19,095 INFO L267 ElimStorePlain]: Start of recursive call 4: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-04-11 16:19:19,108 INFO L267 ElimStorePlain]: Start of recursive call 1: 2 dim-0 vars, 2 dim-2 vars, End of recursive call: and 1 xjuncts. [2018-04-11 16:19:19,108 INFO L202 ElimStorePlain]: Needed 5 recursive calls to eliminate 4 variables, input treesize:117, output treesize:100 [2018-04-11 16:19:19,226 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 2 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 204 treesize of output 186 [2018-04-11 16:19:19,228 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 28 treesize of output 27 [2018-04-11 16:19:19,228 INFO L267 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 1 xjuncts. [2018-04-11 16:19:19,239 INFO L267 ElimStorePlain]: Start of recursive call 2: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-04-11 16:19:19,265 INFO L700 Elim1Store]: detected not equals via solver [2018-04-11 16:19:19,268 INFO L700 Elim1Store]: detected not equals via solver [2018-04-11 16:19:19,271 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 3 select indices, 3 select index equivalence classes, 4 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 0 case distinctions, treesize of input 195 treesize of output 168 [2018-04-11 16:19:19,273 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 28 treesize of output 27 [2018-04-11 16:19:19,273 INFO L267 ElimStorePlain]: Start of recursive call 5: End of recursive call: and 1 xjuncts. [2018-04-11 16:19:19,286 INFO L267 ElimStorePlain]: Start of recursive call 4: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-04-11 16:19:19,302 INFO L267 ElimStorePlain]: Start of recursive call 1: 1 dim-0 vars, 2 dim-2 vars, End of recursive call: 1 dim-0 vars, and 1 xjuncts. [2018-04-11 16:19:19,302 INFO L202 ElimStorePlain]: Needed 5 recursive calls to eliminate 3 variables, input treesize:234, output treesize:190 [2018-04-11 16:19:19,371 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 2 select indices, 2 select index equivalence classes, 2 disjoint index pairs (out of 1 index pairs), introduced 3 new quantified variables, introduced 0 case distinctions, treesize of input 139 treesize of output 124 [2018-04-11 16:19:19,373 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 102 treesize of output 85 [2018-04-11 16:19:19,373 INFO L267 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 1 xjuncts. [2018-04-11 16:19:19,389 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 7 treesize of output 1 [2018-04-11 16:19:19,389 INFO L267 ElimStorePlain]: Start of recursive call 4: End of recursive call: and 1 xjuncts. [2018-04-11 16:19:19,397 INFO L267 ElimStorePlain]: Start of recursive call 2: 2 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-04-11 16:19:19,409 INFO L267 ElimStorePlain]: Start of recursive call 1: 2 dim-0 vars, 1 dim-2 vars, End of recursive call: 2 dim-0 vars, and 1 xjuncts. [2018-04-11 16:19:19,409 INFO L202 ElimStorePlain]: Needed 4 recursive calls to eliminate 3 variables, input treesize:169, output treesize:115 [2018-04-11 16:19:19,478 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 2 select indices, 2 select index equivalence classes, 2 disjoint index pairs (out of 1 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 32 treesize of output 16 [2018-04-11 16:19:19,478 INFO L267 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2018-04-11 16:19:19,486 INFO L700 Elim1Store]: detected not equals via solver [2018-04-11 16:19:19,488 INFO L700 Elim1Store]: detected not equals via solver [2018-04-11 16:19:19,488 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 3 select indices, 3 select index equivalence classes, 4 disjoint index pairs (out of 3 index pairs), introduced 4 new quantified variables, introduced 0 case distinctions, treesize of input 79 treesize of output 56 [2018-04-11 16:19:19,489 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 7 treesize of output 1 [2018-04-11 16:19:19,490 INFO L267 ElimStorePlain]: Start of recursive call 4: End of recursive call: and 1 xjuncts. [2018-04-11 16:19:19,496 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 2 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 22 treesize of output 16 [2018-04-11 16:19:19,496 INFO L267 ElimStorePlain]: Start of recursive call 5: 1 dim-0 vars, End of recursive call: 1 dim-0 vars, and 1 xjuncts. [2018-04-11 16:19:19,502 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 2 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 25 treesize of output 14 [2018-04-11 16:19:19,502 INFO L267 ElimStorePlain]: Start of recursive call 6: End of recursive call: and 1 xjuncts. [2018-04-11 16:19:19,506 INFO L267 ElimStorePlain]: Start of recursive call 3: 3 dim-1 vars, End of recursive call: 1 dim-0 vars, and 1 xjuncts. [2018-04-11 16:19:19,511 INFO L267 ElimStorePlain]: Start of recursive call 1: 2 dim-0 vars, 1 dim-1 vars, 1 dim-2 vars, End of recursive call: 2 dim-0 vars, and 1 xjuncts. [2018-04-11 16:19:19,511 INFO L202 ElimStorePlain]: Needed 6 recursive calls to eliminate 4 variables, input treesize:115, output treesize:28 [2018-04-11 16:19:19,560 INFO L134 CoverageAnalysis]: Checked inductivity of 31 backedges. 0 proven. 31 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-04-11 16:19:19,561 INFO L320 seRefinementStrategy]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2018-04-11 16:19:19,561 INFO L335 seRefinementStrategy]: Number of different interpolants: perfect sequences [] imperfect sequences [21] total 21 [2018-04-11 16:19:19,561 INFO L442 AbstractCegarLoop]: Interpolant automaton has 22 states [2018-04-11 16:19:19,561 INFO L132 InterpolantAutomaton]: Constructing interpolant automaton starting with 22 interpolants. [2018-04-11 16:19:19,561 INFO L133 InterpolantAutomaton]: CoverageRelationStatistics Valid=67, Invalid=395, Unknown=0, NotChecked=0, Total=462 [2018-04-11 16:19:19,561 INFO L87 Difference]: Start difference. First operand 140 states and 152 transitions. Second operand 22 states. [2018-04-11 16:19:21,625 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-04-11 16:19:21,626 INFO L93 Difference]: Finished difference Result 180 states and 194 transitions. [2018-04-11 16:19:21,626 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 24 states. [2018-04-11 16:19:21,626 INFO L78 Accepts]: Start accepts. Automaton has 22 states. Word has length 53 [2018-04-11 16:19:21,626 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-04-11 16:19:21,626 INFO L225 Difference]: With dead ends: 180 [2018-04-11 16:19:21,626 INFO L226 Difference]: Without dead ends: 180 [2018-04-11 16:19:21,627 INFO L567 BasicCegarLoop]: 0 DeclaredPredicates, 73 GetRequests, 30 SyntacticMatches, 2 SemanticMatches, 41 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 328 ImplicationChecksByTransitivity, 1.1s TimeCoverageRelationStatistics Valid=286, Invalid=1520, Unknown=0, NotChecked=0, Total=1806 [2018-04-11 16:19:21,627 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 180 states. [2018-04-11 16:19:21,628 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 180 to 144. [2018-04-11 16:19:21,628 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 144 states. [2018-04-11 16:19:21,628 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 144 states to 144 states and 158 transitions. [2018-04-11 16:19:21,629 INFO L78 Accepts]: Start accepts. Automaton has 144 states and 158 transitions. Word has length 53 [2018-04-11 16:19:21,629 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-04-11 16:19:21,629 INFO L459 AbstractCegarLoop]: Abstraction has 144 states and 158 transitions. [2018-04-11 16:19:21,629 INFO L460 AbstractCegarLoop]: Interpolant automaton has 22 states. [2018-04-11 16:19:21,629 INFO L276 IsEmpty]: Start isEmpty. Operand 144 states and 158 transitions. [2018-04-11 16:19:21,629 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 54 [2018-04-11 16:19:21,629 INFO L347 BasicCegarLoop]: Found error trace [2018-04-11 16:19:21,629 INFO L355 BasicCegarLoop]: trace histogram [3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-04-11 16:19:21,629 INFO L408 AbstractCegarLoop]: === Iteration 19 === [mainErr5RequiresViolation, mainErr13RequiresViolation, mainErr1RequiresViolation, mainErr9RequiresViolation, mainErr0RequiresViolation, mainErr18EnsuresViolationMEMORY_LEAK, mainErr17AssertViolationMEMORY_FREE, mainErr3RequiresViolation, mainErr7RequiresViolation, mainErr11RequiresViolation, mainErr8RequiresViolation, mainErr10RequiresViolation, mainErr15RequiresViolation, mainErr2RequiresViolation, mainErr4RequiresViolation, mainErr12RequiresViolation, mainErr6RequiresViolation, mainErr16AssertViolationMEMORY_FREE, mainErr14RequiresViolation]=== [2018-04-11 16:19:21,629 INFO L82 PathProgramCache]: Analyzing trace with hash -1842350162, now seen corresponding path program 3 times [2018-04-11 16:19:21,629 INFO L213 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS_NO_ARRAY [2018-04-11 16:19:21,629 INFO L68 tionRefinementEngine]: Using refinement strategy SmtInterpolRefinementStrategy [2018-04-11 16:19:21,630 INFO L119 rtionOrderModulation]: Craig nested/tree interpolation forces the following order [2018-04-11 16:19:21,630 INFO L101 rtionOrderModulation]: Changing assertion order to NOT_INCREMENTALLY [2018-04-11 16:19:21,630 INFO L119 rtionOrderModulation]: Craig nested/tree interpolation forces the following order [2018-04-11 16:19:21,638 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-04-11 16:19:21,638 WARN L137 erpolLogProxyWrapper]: Using partial proofs (cut at CNF-level). Set option :produce-proofs to true to get complete proofs. [2018-04-11 16:19:21,649 INFO L431 seRefinementStrategy]: Interpolation failed due to KNOWN_IGNORE: Unknown lemma type! [2018-04-11 16:19:21,649 INFO L308 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2018-04-11 16:19:21,649 INFO L213 ckRefinementStrategy]: Switched to mode SMTINTERPOL_FP [2018-04-11 16:19:21,650 INFO L103 rtionOrderModulation]: Keeping assertion order OUTSIDE_LOOP_FIRST2 [2018-04-11 16:19:21,683 INFO L242 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST2 issued 3 check-sat command(s) [2018-04-11 16:19:21,683 INFO L243 tOrderPrioritization]: Conjunction of SSA is unsat [2018-04-11 16:19:21,686 INFO L270 TraceCheckSpWp]: Computing forward predicates... [2018-04-11 16:19:21,690 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 6 treesize of output 5 [2018-04-11 16:19:21,690 INFO L267 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2018-04-11 16:19:21,692 INFO L267 ElimStorePlain]: Start of recursive call 1: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-04-11 16:19:21,692 INFO L202 ElimStorePlain]: Needed 2 recursive calls to eliminate 1 variables, input treesize:10, output treesize:9 [2018-04-11 16:19:21,735 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 6 treesize of output 5 [2018-04-11 16:19:21,735 INFO L267 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2018-04-11 16:19:21,751 INFO L700 Elim1Store]: detected not equals via solver [2018-04-11 16:19:21,752 INFO L700 Elim1Store]: detected not equals via solver [2018-04-11 16:19:21,752 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 2 select indices, 2 select index equivalence classes, 2 disjoint index pairs (out of 1 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 17 treesize of output 21 [2018-04-11 16:19:21,753 INFO L267 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 1 xjuncts. [2018-04-11 16:19:21,767 INFO L267 ElimStorePlain]: Start of recursive call 1: 2 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-04-11 16:19:21,768 INFO L202 ElimStorePlain]: Needed 3 recursive calls to eliminate 2 variables, input treesize:38, output treesize:35 [2018-04-11 16:19:21,831 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 13 treesize of output 10 [2018-04-11 16:19:21,834 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 10 treesize of output 9 [2018-04-11 16:19:21,834 INFO L267 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 1 xjuncts. [2018-04-11 16:19:21,836 INFO L267 ElimStorePlain]: Start of recursive call 2: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-04-11 16:19:21,854 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 13 treesize of output 10 [2018-04-11 16:19:21,857 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 10 treesize of output 9 [2018-04-11 16:19:21,857 INFO L267 ElimStorePlain]: Start of recursive call 5: End of recursive call: and 1 xjuncts. [2018-04-11 16:19:21,859 INFO L267 ElimStorePlain]: Start of recursive call 4: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-04-11 16:19:21,874 INFO L267 ElimStorePlain]: Start of recursive call 1: 1 dim-0 vars, 2 dim-2 vars, End of recursive call: and 1 xjuncts. [2018-04-11 16:19:21,874 INFO L202 ElimStorePlain]: Needed 5 recursive calls to eliminate 3 variables, input treesize:58, output treesize:59 [2018-04-11 16:19:21,944 INFO L700 Elim1Store]: detected not equals via solver [2018-04-11 16:19:21,944 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 1 select indices, 1 select index equivalence classes, 2 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 18 treesize of output 27 [2018-04-11 16:19:21,945 INFO L267 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2018-04-11 16:19:21,968 INFO L700 Elim1Store]: detected not equals via solver [2018-04-11 16:19:21,968 INFO L700 Elim1Store]: detected not equals via solver [2018-04-11 16:19:21,969 INFO L700 Elim1Store]: detected not equals via solver [2018-04-11 16:19:21,969 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 3 select indices, 3 select index equivalence classes, 4 disjoint index pairs (out of 3 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 22 treesize of output 25 [2018-04-11 16:19:21,969 INFO L267 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 1 xjuncts. [2018-04-11 16:19:21,983 INFO L267 ElimStorePlain]: Start of recursive call 1: 1 dim-0 vars, 2 dim-1 vars, End of recursive call: 1 dim-0 vars, and 1 xjuncts. [2018-04-11 16:19:21,983 INFO L202 ElimStorePlain]: Needed 3 recursive calls to eliminate 3 variables, input treesize:88, output treesize:80 [2018-04-11 16:19:22,018 INFO L700 Elim1Store]: detected not equals via solver [2018-04-11 16:19:22,020 INFO L700 Elim1Store]: detected not equals via solver [2018-04-11 16:19:22,020 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 3 disjoint index pairs (out of 1 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 54 treesize of output 66 [2018-04-11 16:19:22,022 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 2 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 22 treesize of output 18 [2018-04-11 16:19:22,022 INFO L267 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 1 xjuncts. [2018-04-11 16:19:22,027 INFO L267 ElimStorePlain]: Start of recursive call 2: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-04-11 16:19:22,040 INFO L700 Elim1Store]: detected not equals via solver [2018-04-11 16:19:22,042 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 2 disjoint index pairs (out of 1 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 32 treesize of output 39 [2018-04-11 16:19:22,047 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 16 treesize of output 15 [2018-04-11 16:19:22,047 INFO L267 ElimStorePlain]: Start of recursive call 5: End of recursive call: and 1 xjuncts. [2018-04-11 16:19:22,051 INFO L267 ElimStorePlain]: Start of recursive call 4: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-04-11 16:19:22,061 INFO L267 ElimStorePlain]: Start of recursive call 1: 2 dim-0 vars, 2 dim-2 vars, End of recursive call: 1 dim-0 vars, and 1 xjuncts. [2018-04-11 16:19:22,061 INFO L202 ElimStorePlain]: Needed 5 recursive calls to eliminate 4 variables, input treesize:103, output treesize:100 [2018-04-11 16:19:22,122 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 5 treesize of output 1 [2018-04-11 16:19:22,122 INFO L267 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2018-04-11 16:19:22,135 INFO L267 ElimStorePlain]: Start of recursive call 1: 1 dim-0 vars, 1 dim-1 vars, End of recursive call: 1 dim-0 vars, and 1 xjuncts. [2018-04-11 16:19:22,135 INFO L202 ElimStorePlain]: Needed 2 recursive calls to eliminate 2 variables, input treesize:174, output treesize:166 [2018-04-11 16:19:22,139 INFO L700 Elim1Store]: detected not equals via solver [2018-04-11 16:19:22,140 INFO L700 Elim1Store]: detected not equals via solver [2018-04-11 16:19:22,146 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 3 select indices, 3 select index equivalence classes, 4 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 0 case distinctions, treesize of input 240 treesize of output 213 [2018-04-11 16:19:22,148 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 46 treesize of output 45 [2018-04-11 16:19:22,148 INFO L267 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 1 xjuncts. [2018-04-11 16:19:22,160 INFO L267 ElimStorePlain]: Start of recursive call 2: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-04-11 16:19:22,176 INFO L700 Elim1Store]: detected not equals via solver [2018-04-11 16:19:22,181 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 3 select indices, 3 select index equivalence classes, 3 disjoint index pairs (out of 3 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 216 treesize of output 208 [2018-04-11 16:19:22,182 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 46 treesize of output 45 [2018-04-11 16:19:22,182 INFO L267 ElimStorePlain]: Start of recursive call 5: End of recursive call: and 1 xjuncts. [2018-04-11 16:19:22,192 INFO L267 ElimStorePlain]: Start of recursive call 4: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-04-11 16:19:22,204 INFO L267 ElimStorePlain]: Start of recursive call 1: 1 dim-0 vars, 2 dim-2 vars, End of recursive call: 1 dim-0 vars, and 1 xjuncts. [2018-04-11 16:19:22,204 INFO L202 ElimStorePlain]: Needed 5 recursive calls to eliminate 3 variables, input treesize:258, output treesize:214 [2018-04-11 16:19:22,399 INFO L700 Elim1Store]: detected not equals via solver [2018-04-11 16:19:22,400 INFO L700 Elim1Store]: detected not equals via solver [2018-04-11 16:19:22,401 INFO L700 Elim1Store]: detected not equals via solver [2018-04-11 16:19:22,402 INFO L682 Elim1Store]: detected equality via solver [2018-04-11 16:19:22,406 INFO L700 Elim1Store]: detected not equals via solver [2018-04-11 16:19:22,406 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 4 select indices, 4 select index equivalence classes, 4 disjoint index pairs (out of 6 index pairs), introduced 5 new quantified variables, introduced 0 case distinctions, treesize of input 245 treesize of output 234 [2018-04-11 16:19:22,411 INFO L682 Elim1Store]: detected equality via solver [2018-04-11 16:19:22,416 INFO L477 Elim1Store]: Elim1 applied some preprocessing eliminated variable of array dimension 1, 0 stores, 3 select indices, 3 select index equivalence classes, 3 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 2 case distinctions, treesize of input 176 treesize of output 134 [2018-04-11 16:19:22,418 INFO L267 ElimStorePlain]: Start of recursive call 3: 3 dim-0 vars, End of recursive call: 3 dim-0 vars, and 2 xjuncts. [2018-04-11 16:19:22,444 INFO L682 Elim1Store]: detected equality via solver [2018-04-11 16:19:22,449 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 3 select indices, 3 select index equivalence classes, 3 disjoint index pairs (out of 3 index pairs), introduced 1 new quantified variables, introduced 2 case distinctions, treesize of input 148 treesize of output 128 [2018-04-11 16:19:22,450 INFO L267 ElimStorePlain]: Start of recursive call 4: End of recursive call: and 2 xjuncts. [2018-04-11 16:19:22,451 INFO L682 Elim1Store]: detected equality via solver [2018-04-11 16:19:22,451 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 2 select indices, 2 select index equivalence classes, 2 disjoint index pairs (out of 1 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 142 treesize of output 108 [2018-04-11 16:19:22,451 INFO L267 ElimStorePlain]: Start of recursive call 5: End of recursive call: and 1 xjuncts. [2018-04-11 16:19:22,481 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 91 treesize of output 72 [2018-04-11 16:19:22,481 INFO L267 ElimStorePlain]: Start of recursive call 6: End of recursive call: and 1 xjuncts. [2018-04-11 16:19:22,482 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 91 treesize of output 72 [2018-04-11 16:19:22,483 INFO L267 ElimStorePlain]: Start of recursive call 7: End of recursive call: and 1 xjuncts. [2018-04-11 16:19:22,499 INFO L267 ElimStorePlain]: Start of recursive call 2: 3 dim-1 vars, End of recursive call: 2 dim-0 vars, and 2 xjuncts. [2018-04-11 16:19:22,523 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 3 select indices, 3 select index equivalence classes, 3 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 0 case distinctions, treesize of input 81 treesize of output 65 [2018-04-11 16:19:22,525 INFO L682 Elim1Store]: detected equality via solver [2018-04-11 16:19:22,525 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 36 treesize of output 24 [2018-04-11 16:19:22,525 INFO L267 ElimStorePlain]: Start of recursive call 9: End of recursive call: and 1 xjuncts. [2018-04-11 16:19:22,533 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 7 treesize of output 1 [2018-04-11 16:19:22,533 INFO L267 ElimStorePlain]: Start of recursive call 10: End of recursive call: and 1 xjuncts. [2018-04-11 16:19:22,541 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 7 treesize of output 1 [2018-04-11 16:19:22,541 INFO L267 ElimStorePlain]: Start of recursive call 11: End of recursive call: and 1 xjuncts. [2018-04-11 16:19:22,545 INFO L267 ElimStorePlain]: Start of recursive call 8: 3 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-04-11 16:19:22,548 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 3 select indices, 3 select index equivalence classes, 3 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 0 case distinctions, treesize of input 81 treesize of output 69 [2018-04-11 16:19:22,550 INFO L682 Elim1Store]: detected equality via solver [2018-04-11 16:19:22,550 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 43 treesize of output 25 [2018-04-11 16:19:22,550 INFO L267 ElimStorePlain]: Start of recursive call 13: End of recursive call: and 1 xjuncts. [2018-04-11 16:19:22,559 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 20 treesize of output 11 [2018-04-11 16:19:22,559 INFO L267 ElimStorePlain]: Start of recursive call 14: End of recursive call: and 1 xjuncts. [2018-04-11 16:19:22,565 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 7 treesize of output 1 [2018-04-11 16:19:22,565 INFO L267 ElimStorePlain]: Start of recursive call 15: End of recursive call: and 1 xjuncts. [2018-04-11 16:19:22,569 INFO L267 ElimStorePlain]: Start of recursive call 12: 3 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-04-11 16:19:22,583 INFO L267 ElimStorePlain]: Start of recursive call 1: 2 dim-0 vars, 2 dim-2 vars, End of recursive call: 2 dim-0 vars, and 2 xjuncts. [2018-04-11 16:19:22,583 INFO L202 ElimStorePlain]: Needed 15 recursive calls to eliminate 4 variables, input treesize:260, output treesize:37 [2018-04-11 16:19:22,649 INFO L134 CoverageAnalysis]: Checked inductivity of 31 backedges. 0 proven. 31 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-04-11 16:19:22,649 INFO L320 seRefinementStrategy]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2018-04-11 16:19:22,650 INFO L335 seRefinementStrategy]: Number of different interpolants: perfect sequences [] imperfect sequences [21] total 21 [2018-04-11 16:19:22,650 INFO L442 AbstractCegarLoop]: Interpolant automaton has 22 states [2018-04-11 16:19:22,650 INFO L132 InterpolantAutomaton]: Constructing interpolant automaton starting with 22 interpolants. [2018-04-11 16:19:22,650 INFO L133 InterpolantAutomaton]: CoverageRelationStatistics Valid=61, Invalid=401, Unknown=0, NotChecked=0, Total=462 [2018-04-11 16:19:22,650 INFO L87 Difference]: Start difference. First operand 144 states and 158 transitions. Second operand 22 states. [2018-04-11 16:19:24,245 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-04-11 16:19:24,246 INFO L93 Difference]: Finished difference Result 200 states and 214 transitions. [2018-04-11 16:19:24,246 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 25 states. [2018-04-11 16:19:24,246 INFO L78 Accepts]: Start accepts. Automaton has 22 states. Word has length 53 [2018-04-11 16:19:24,246 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-04-11 16:19:24,247 INFO L225 Difference]: With dead ends: 200 [2018-04-11 16:19:24,247 INFO L226 Difference]: Without dead ends: 200 [2018-04-11 16:19:24,247 INFO L567 BasicCegarLoop]: 0 DeclaredPredicates, 73 GetRequests, 31 SyntacticMatches, 1 SemanticMatches, 41 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 318 ImplicationChecksByTransitivity, 1.2s TimeCoverageRelationStatistics Valid=270, Invalid=1536, Unknown=0, NotChecked=0, Total=1806 [2018-04-11 16:19:24,247 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 200 states. [2018-04-11 16:19:24,248 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 200 to 146. [2018-04-11 16:19:24,249 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 146 states. [2018-04-11 16:19:24,249 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 146 states to 146 states and 159 transitions. [2018-04-11 16:19:24,249 INFO L78 Accepts]: Start accepts. Automaton has 146 states and 159 transitions. Word has length 53 [2018-04-11 16:19:24,249 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-04-11 16:19:24,249 INFO L459 AbstractCegarLoop]: Abstraction has 146 states and 159 transitions. [2018-04-11 16:19:24,249 INFO L460 AbstractCegarLoop]: Interpolant automaton has 22 states. [2018-04-11 16:19:24,249 INFO L276 IsEmpty]: Start isEmpty. Operand 146 states and 159 transitions. [2018-04-11 16:19:24,249 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 54 [2018-04-11 16:19:24,249 INFO L347 BasicCegarLoop]: Found error trace [2018-04-11 16:19:24,250 INFO L355 BasicCegarLoop]: trace histogram [3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-04-11 16:19:24,250 INFO L408 AbstractCegarLoop]: === Iteration 20 === [mainErr5RequiresViolation, mainErr13RequiresViolation, mainErr1RequiresViolation, mainErr9RequiresViolation, mainErr0RequiresViolation, mainErr18EnsuresViolationMEMORY_LEAK, mainErr17AssertViolationMEMORY_FREE, mainErr3RequiresViolation, mainErr7RequiresViolation, mainErr11RequiresViolation, mainErr8RequiresViolation, mainErr10RequiresViolation, mainErr15RequiresViolation, mainErr2RequiresViolation, mainErr4RequiresViolation, mainErr12RequiresViolation, mainErr6RequiresViolation, mainErr16AssertViolationMEMORY_FREE, mainErr14RequiresViolation]=== [2018-04-11 16:19:24,250 INFO L82 PathProgramCache]: Analyzing trace with hash 1726364728, now seen corresponding path program 2 times [2018-04-11 16:19:24,250 INFO L213 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS_NO_ARRAY [2018-04-11 16:19:24,250 INFO L68 tionRefinementEngine]: Using refinement strategy SmtInterpolRefinementStrategy [2018-04-11 16:19:24,250 INFO L119 rtionOrderModulation]: Craig nested/tree interpolation forces the following order [2018-04-11 16:19:24,250 INFO L101 rtionOrderModulation]: Changing assertion order to NOT_INCREMENTALLY [2018-04-11 16:19:24,250 INFO L119 rtionOrderModulation]: Craig nested/tree interpolation forces the following order [2018-04-11 16:19:24,256 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-04-11 16:19:24,256 WARN L137 erpolLogProxyWrapper]: Using partial proofs (cut at CNF-level). Set option :produce-proofs to true to get complete proofs. [2018-04-11 16:19:24,265 INFO L431 seRefinementStrategy]: Interpolation failed due to KNOWN_IGNORE: Unknown lemma type! [2018-04-11 16:19:24,265 INFO L308 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2018-04-11 16:19:24,265 INFO L213 ckRefinementStrategy]: Switched to mode SMTINTERPOL_FP [2018-04-11 16:19:24,265 INFO L103 rtionOrderModulation]: Keeping assertion order OUTSIDE_LOOP_FIRST1 [2018-04-11 16:19:24,288 INFO L242 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2018-04-11 16:19:24,288 INFO L243 tOrderPrioritization]: Conjunction of SSA is unsat [2018-04-11 16:19:24,290 INFO L270 TraceCheckSpWp]: Computing forward predicates... [2018-04-11 16:19:24,292 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 6 treesize of output 5 [2018-04-11 16:19:24,292 INFO L267 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2018-04-11 16:19:24,293 INFO L267 ElimStorePlain]: Start of recursive call 1: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-04-11 16:19:24,293 INFO L202 ElimStorePlain]: Needed 2 recursive calls to eliminate 1 variables, input treesize:6, output treesize:5 [2018-04-11 16:19:24,308 INFO L700 Elim1Store]: detected not equals via solver [2018-04-11 16:19:24,309 INFO L700 Elim1Store]: detected not equals via solver [2018-04-11 16:19:24,310 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 2 select indices, 2 select index equivalence classes, 2 disjoint index pairs (out of 1 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 17 treesize of output 24 [2018-04-11 16:19:24,310 INFO L267 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2018-04-11 16:19:24,319 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 12 treesize of output 15 [2018-04-11 16:19:24,319 INFO L267 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 1 xjuncts. [2018-04-11 16:19:24,327 INFO L267 ElimStorePlain]: Start of recursive call 1: 2 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-04-11 16:19:24,327 INFO L202 ElimStorePlain]: Needed 3 recursive calls to eliminate 2 variables, input treesize:37, output treesize:34 [2018-04-11 16:19:24,377 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 2 select indices, 2 select index equivalence classes, 1 disjoint index pairs (out of 1 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 11 treesize of output 4 [2018-04-11 16:19:24,377 INFO L267 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2018-04-11 16:19:24,395 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 13 treesize of output 10 [2018-04-11 16:19:24,398 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 10 treesize of output 9 [2018-04-11 16:19:24,399 INFO L267 ElimStorePlain]: Start of recursive call 4: End of recursive call: and 1 xjuncts. [2018-04-11 16:19:24,400 INFO L267 ElimStorePlain]: Start of recursive call 3: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-04-11 16:19:24,416 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 13 treesize of output 10 [2018-04-11 16:19:24,418 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 10 treesize of output 9 [2018-04-11 16:19:24,418 INFO L267 ElimStorePlain]: Start of recursive call 6: End of recursive call: and 1 xjuncts. [2018-04-11 16:19:24,420 INFO L267 ElimStorePlain]: Start of recursive call 5: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-04-11 16:19:24,432 INFO L267 ElimStorePlain]: Start of recursive call 1: 1 dim-0 vars, 1 dim-1 vars, 2 dim-2 vars, End of recursive call: and 1 xjuncts. [2018-04-11 16:19:24,432 INFO L202 ElimStorePlain]: Needed 6 recursive calls to eliminate 4 variables, input treesize:64, output treesize:49 [2018-04-11 16:19:24,510 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 1 disjoint index pairs (out of 1 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 72 treesize of output 73 [2018-04-11 16:19:24,512 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 22 treesize of output 21 [2018-04-11 16:19:24,512 INFO L267 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 1 xjuncts. [2018-04-11 16:19:24,520 INFO L267 ElimStorePlain]: Start of recursive call 2: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-04-11 16:19:24,539 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 1 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 74 treesize of output 68 [2018-04-11 16:19:24,541 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 22 treesize of output 21 [2018-04-11 16:19:24,541 INFO L267 ElimStorePlain]: Start of recursive call 5: End of recursive call: and 1 xjuncts. [2018-04-11 16:19:24,548 INFO L267 ElimStorePlain]: Start of recursive call 4: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-04-11 16:19:24,561 INFO L267 ElimStorePlain]: Start of recursive call 1: 1 dim-0 vars, 2 dim-2 vars, End of recursive call: 1 dim-0 vars, and 1 xjuncts. [2018-04-11 16:19:24,562 INFO L202 ElimStorePlain]: Needed 5 recursive calls to eliminate 3 variables, input treesize:108, output treesize:88 [2018-04-11 16:19:24,618 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 2 select indices, 2 select index equivalence classes, 1 disjoint index pairs (out of 1 index pairs), introduced 3 new quantified variables, introduced 0 case distinctions, treesize of input 73 treesize of output 64 [2018-04-11 16:19:24,626 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 2 select indices, 2 select index equivalence classes, 1 disjoint index pairs (out of 1 index pairs), introduced 1 new quantified variables, introduced 1 case distinctions, treesize of input 44 treesize of output 37 [2018-04-11 16:19:24,626 INFO L267 ElimStorePlain]: Start of recursive call 3: 1 dim-0 vars, End of recursive call: 1 dim-0 vars, and 2 xjuncts. [2018-04-11 16:19:24,641 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 13 treesize of output 1 [2018-04-11 16:19:24,641 INFO L267 ElimStorePlain]: Start of recursive call 4: End of recursive call: and 1 xjuncts. [2018-04-11 16:19:24,649 INFO L267 ElimStorePlain]: Start of recursive call 2: 2 dim-1 vars, End of recursive call: 1 dim-0 vars, and 2 xjuncts. [2018-04-11 16:19:24,665 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 2 select indices, 2 select index equivalence classes, 1 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 51 treesize of output 43 [2018-04-11 16:19:24,667 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 11 treesize of output 1 [2018-04-11 16:19:24,667 INFO L267 ElimStorePlain]: Start of recursive call 6: End of recursive call: and 1 xjuncts. [2018-04-11 16:19:24,672 INFO L700 Elim1Store]: detected not equals via solver [2018-04-11 16:19:24,673 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 2 select indices, 2 select index equivalence classes, 1 disjoint index pairs (out of 1 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 15 treesize of output 8 [2018-04-11 16:19:24,673 INFO L267 ElimStorePlain]: Start of recursive call 7: End of recursive call: and 1 xjuncts. [2018-04-11 16:19:24,676 INFO L267 ElimStorePlain]: Start of recursive call 5: 2 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-04-11 16:19:24,678 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 2 select indices, 2 select index equivalence classes, 1 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 43 treesize of output 35 [2018-04-11 16:19:24,682 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 0 new quantified variables, introduced 1 case distinctions, treesize of input 26 treesize of output 18 [2018-04-11 16:19:24,682 INFO L267 ElimStorePlain]: Start of recursive call 9: End of recursive call: and 2 xjuncts. [2018-04-11 16:19:24,690 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 9 treesize of output 3 [2018-04-11 16:19:24,691 INFO L267 ElimStorePlain]: Start of recursive call 10: End of recursive call: and 1 xjuncts. [2018-04-11 16:19:24,692 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 14 treesize of output 8 [2018-04-11 16:19:24,692 INFO L267 ElimStorePlain]: Start of recursive call 11: End of recursive call: and 1 xjuncts. [2018-04-11 16:19:24,696 INFO L267 ElimStorePlain]: Start of recursive call 8: 2 dim-1 vars, End of recursive call: and 2 xjuncts. [2018-04-11 16:19:24,710 INFO L267 ElimStorePlain]: Start of recursive call 1: 2 dim-0 vars, 2 dim-2 vars, End of recursive call: 7 dim-0 vars, and 4 xjuncts. [2018-04-11 16:19:24,711 INFO L202 ElimStorePlain]: Needed 11 recursive calls to eliminate 4 variables, input treesize:106, output treesize:121 [2018-04-11 16:19:24,828 INFO L134 CoverageAnalysis]: Checked inductivity of 17 backedges. 0 proven. 7 refuted. 0 times theorem prover too weak. 10 trivial. 0 not checked. [2018-04-11 16:19:24,828 INFO L320 seRefinementStrategy]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2018-04-11 16:19:24,828 INFO L335 seRefinementStrategy]: Number of different interpolants: perfect sequences [] imperfect sequences [16] total 16 [2018-04-11 16:19:24,829 INFO L442 AbstractCegarLoop]: Interpolant automaton has 17 states [2018-04-11 16:19:24,829 INFO L132 InterpolantAutomaton]: Constructing interpolant automaton starting with 17 interpolants. [2018-04-11 16:19:24,829 INFO L133 InterpolantAutomaton]: CoverageRelationStatistics Valid=50, Invalid=222, Unknown=0, NotChecked=0, Total=272 [2018-04-11 16:19:24,829 INFO L87 Difference]: Start difference. First operand 146 states and 159 transitions. Second operand 17 states. [2018-04-11 16:19:25,760 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-04-11 16:19:25,761 INFO L93 Difference]: Finished difference Result 171 states and 182 transitions. [2018-04-11 16:19:25,761 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 24 states. [2018-04-11 16:19:25,761 INFO L78 Accepts]: Start accepts. Automaton has 17 states. Word has length 53 [2018-04-11 16:19:25,761 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-04-11 16:19:25,762 INFO L225 Difference]: With dead ends: 171 [2018-04-11 16:19:25,762 INFO L226 Difference]: Without dead ends: 171 [2018-04-11 16:19:25,762 INFO L567 BasicCegarLoop]: 0 DeclaredPredicates, 73 GetRequests, 36 SyntacticMatches, 1 SemanticMatches, 36 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 284 ImplicationChecksByTransitivity, 0.8s TimeCoverageRelationStatistics Valid=306, Invalid=1100, Unknown=0, NotChecked=0, Total=1406 [2018-04-11 16:19:25,762 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 171 states. [2018-04-11 16:19:25,764 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 171 to 145. [2018-04-11 16:19:25,764 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 145 states. [2018-04-11 16:19:25,764 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 145 states to 145 states and 157 transitions. [2018-04-11 16:19:25,764 INFO L78 Accepts]: Start accepts. Automaton has 145 states and 157 transitions. Word has length 53 [2018-04-11 16:19:25,765 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-04-11 16:19:25,765 INFO L459 AbstractCegarLoop]: Abstraction has 145 states and 157 transitions. [2018-04-11 16:19:25,765 INFO L460 AbstractCegarLoop]: Interpolant automaton has 17 states. [2018-04-11 16:19:25,765 INFO L276 IsEmpty]: Start isEmpty. Operand 145 states and 157 transitions. [2018-04-11 16:19:25,765 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 55 [2018-04-11 16:19:25,765 INFO L347 BasicCegarLoop]: Found error trace [2018-04-11 16:19:25,765 INFO L355 BasicCegarLoop]: trace histogram [3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-04-11 16:19:25,765 INFO L408 AbstractCegarLoop]: === Iteration 21 === [mainErr5RequiresViolation, mainErr13RequiresViolation, mainErr1RequiresViolation, mainErr9RequiresViolation, mainErr0RequiresViolation, mainErr18EnsuresViolationMEMORY_LEAK, mainErr17AssertViolationMEMORY_FREE, mainErr3RequiresViolation, mainErr7RequiresViolation, mainErr11RequiresViolation, mainErr8RequiresViolation, mainErr10RequiresViolation, mainErr15RequiresViolation, mainErr2RequiresViolation, mainErr4RequiresViolation, mainErr12RequiresViolation, mainErr6RequiresViolation, mainErr16AssertViolationMEMORY_FREE, mainErr14RequiresViolation]=== [2018-04-11 16:19:25,765 INFO L82 PathProgramCache]: Analyzing trace with hash 1977697551, now seen corresponding path program 2 times [2018-04-11 16:19:25,765 INFO L213 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS_NO_ARRAY [2018-04-11 16:19:25,766 INFO L68 tionRefinementEngine]: Using refinement strategy SmtInterpolRefinementStrategy [2018-04-11 16:19:25,766 INFO L119 rtionOrderModulation]: Craig nested/tree interpolation forces the following order [2018-04-11 16:19:25,766 INFO L101 rtionOrderModulation]: Changing assertion order to NOT_INCREMENTALLY [2018-04-11 16:19:25,766 INFO L119 rtionOrderModulation]: Craig nested/tree interpolation forces the following order [2018-04-11 16:19:25,772 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-04-11 16:19:25,773 WARN L137 erpolLogProxyWrapper]: Using partial proofs (cut at CNF-level). Set option :produce-proofs to true to get complete proofs. [2018-04-11 16:19:25,782 INFO L431 seRefinementStrategy]: Interpolation failed due to KNOWN_IGNORE: Unknown lemma type! [2018-04-11 16:19:25,782 INFO L308 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2018-04-11 16:19:25,782 INFO L213 ckRefinementStrategy]: Switched to mode SMTINTERPOL_FP [2018-04-11 16:19:25,783 INFO L103 rtionOrderModulation]: Keeping assertion order OUTSIDE_LOOP_FIRST1 [2018-04-11 16:19:25,795 INFO L242 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2018-04-11 16:19:25,795 INFO L243 tOrderPrioritization]: Conjunction of SSA is unsat [2018-04-11 16:19:25,797 INFO L270 TraceCheckSpWp]: Computing forward predicates... [2018-04-11 16:19:25,817 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 13 treesize of output 10 [2018-04-11 16:19:25,818 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 10 treesize of output 9 [2018-04-11 16:19:25,818 INFO L267 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 1 xjuncts. [2018-04-11 16:19:25,819 INFO L267 ElimStorePlain]: Start of recursive call 2: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-04-11 16:19:25,821 INFO L267 ElimStorePlain]: Start of recursive call 1: 1 dim-2 vars, End of recursive call: and 1 xjuncts. [2018-04-11 16:19:25,821 INFO L202 ElimStorePlain]: Needed 3 recursive calls to eliminate 1 variables, input treesize:17, output treesize:13 [2018-04-11 16:19:25,826 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 19 treesize of output 15 [2018-04-11 16:19:25,827 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 15 treesize of output 3 [2018-04-11 16:19:25,827 INFO L267 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 1 xjuncts. [2018-04-11 16:19:25,831 INFO L267 ElimStorePlain]: Start of recursive call 2: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-04-11 16:19:25,833 INFO L267 ElimStorePlain]: Start of recursive call 1: 2 dim-0 vars, 1 dim-2 vars, End of recursive call: and 1 xjuncts. [2018-04-11 16:19:25,833 INFO L202 ElimStorePlain]: Needed 3 recursive calls to eliminate 3 variables, input treesize:22, output treesize:7 [2018-04-11 16:19:25,896 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 26 treesize of output 22 [2018-04-11 16:19:25,899 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 1 new quantified variables, introduced 1 case distinctions, treesize of input 13 treesize of output 14 [2018-04-11 16:19:25,899 INFO L267 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 2 xjuncts. [2018-04-11 16:19:25,902 INFO L267 ElimStorePlain]: Start of recursive call 2: 1 dim-1 vars, End of recursive call: and 2 xjuncts. [2018-04-11 16:19:25,911 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 34 treesize of output 30 [2018-04-11 16:19:25,915 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 2 select indices, 2 select index equivalence classes, 1 disjoint index pairs (out of 1 index pairs), introduced 1 new quantified variables, introduced 1 case distinctions, treesize of input 14 treesize of output 15 [2018-04-11 16:19:25,915 INFO L267 ElimStorePlain]: Start of recursive call 5: End of recursive call: and 2 xjuncts. [2018-04-11 16:19:25,919 INFO L267 ElimStorePlain]: Start of recursive call 4: 1 dim-1 vars, End of recursive call: and 2 xjuncts. [2018-04-11 16:19:25,932 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 16 treesize of output 14 [2018-04-11 16:19:25,933 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 7 treesize of output 1 [2018-04-11 16:19:25,933 INFO L267 ElimStorePlain]: Start of recursive call 7: End of recursive call: and 1 xjuncts. [2018-04-11 16:19:25,934 INFO L267 ElimStorePlain]: Start of recursive call 6: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-04-11 16:19:25,935 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 13 treesize of output 11 [2018-04-11 16:19:25,936 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 7 treesize of output 1 [2018-04-11 16:19:25,936 INFO L267 ElimStorePlain]: Start of recursive call 9: End of recursive call: and 1 xjuncts. [2018-04-11 16:19:25,936 INFO L267 ElimStorePlain]: Start of recursive call 8: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-04-11 16:19:25,944 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 21 treesize of output 17 [2018-04-11 16:19:25,947 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 1 new quantified variables, introduced 1 case distinctions, treesize of input 13 treesize of output 14 [2018-04-11 16:19:25,948 INFO L267 ElimStorePlain]: Start of recursive call 11: End of recursive call: and 2 xjuncts. [2018-04-11 16:19:25,950 INFO L267 ElimStorePlain]: Start of recursive call 10: 1 dim-1 vars, End of recursive call: and 2 xjuncts. [2018-04-11 16:19:25,955 INFO L267 ElimStorePlain]: Start of recursive call 1: 2 dim-0 vars, 4 dim-2 vars, End of recursive call: and 3 xjuncts. [2018-04-11 16:19:25,955 INFO L202 ElimStorePlain]: Needed 11 recursive calls to eliminate 6 variables, input treesize:61, output treesize:18 [2018-04-11 16:19:26,002 INFO L134 CoverageAnalysis]: Checked inductivity of 16 backedges. 0 proven. 12 refuted. 0 times theorem prover too weak. 4 trivial. 0 not checked. [2018-04-11 16:19:26,002 INFO L320 seRefinementStrategy]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2018-04-11 16:19:26,002 INFO L335 seRefinementStrategy]: Number of different interpolants: perfect sequences [] imperfect sequences [18] total 18 [2018-04-11 16:19:26,002 INFO L442 AbstractCegarLoop]: Interpolant automaton has 18 states [2018-04-11 16:19:26,003 INFO L132 InterpolantAutomaton]: Constructing interpolant automaton starting with 18 interpolants. [2018-04-11 16:19:26,003 INFO L133 InterpolantAutomaton]: CoverageRelationStatistics Valid=38, Invalid=268, Unknown=0, NotChecked=0, Total=306 [2018-04-11 16:19:26,003 INFO L87 Difference]: Start difference. First operand 145 states and 157 transitions. Second operand 18 states. [2018-04-11 16:19:26,921 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-04-11 16:19:26,922 INFO L93 Difference]: Finished difference Result 172 states and 182 transitions. [2018-04-11 16:19:26,922 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 35 states. [2018-04-11 16:19:26,922 INFO L78 Accepts]: Start accepts. Automaton has 18 states. Word has length 54 [2018-04-11 16:19:26,922 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-04-11 16:19:26,922 INFO L225 Difference]: With dead ends: 172 [2018-04-11 16:19:26,922 INFO L226 Difference]: Without dead ends: 172 [2018-04-11 16:19:26,923 INFO L567 BasicCegarLoop]: 0 DeclaredPredicates, 85 GetRequests, 37 SyntacticMatches, 0 SemanticMatches, 48 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 495 ImplicationChecksByTransitivity, 0.8s TimeCoverageRelationStatistics Valid=534, Invalid=1916, Unknown=0, NotChecked=0, Total=2450 [2018-04-11 16:19:26,923 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 172 states. [2018-04-11 16:19:26,924 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 172 to 153. [2018-04-11 16:19:26,924 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 153 states. [2018-04-11 16:19:26,925 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 153 states to 153 states and 164 transitions. [2018-04-11 16:19:26,925 INFO L78 Accepts]: Start accepts. Automaton has 153 states and 164 transitions. Word has length 54 [2018-04-11 16:19:26,925 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-04-11 16:19:26,925 INFO L459 AbstractCegarLoop]: Abstraction has 153 states and 164 transitions. [2018-04-11 16:19:26,925 INFO L460 AbstractCegarLoop]: Interpolant automaton has 18 states. [2018-04-11 16:19:26,926 INFO L276 IsEmpty]: Start isEmpty. Operand 153 states and 164 transitions. [2018-04-11 16:19:26,926 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 59 [2018-04-11 16:19:26,926 INFO L347 BasicCegarLoop]: Found error trace [2018-04-11 16:19:26,926 INFO L355 BasicCegarLoop]: trace histogram [4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-04-11 16:19:26,926 INFO L408 AbstractCegarLoop]: === Iteration 22 === [mainErr5RequiresViolation, mainErr13RequiresViolation, mainErr1RequiresViolation, mainErr9RequiresViolation, mainErr0RequiresViolation, mainErr18EnsuresViolationMEMORY_LEAK, mainErr17AssertViolationMEMORY_FREE, mainErr3RequiresViolation, mainErr7RequiresViolation, mainErr11RequiresViolation, mainErr8RequiresViolation, mainErr10RequiresViolation, mainErr15RequiresViolation, mainErr2RequiresViolation, mainErr4RequiresViolation, mainErr12RequiresViolation, mainErr6RequiresViolation, mainErr16AssertViolationMEMORY_FREE, mainErr14RequiresViolation]=== [2018-04-11 16:19:26,926 INFO L82 PathProgramCache]: Analyzing trace with hash 1528970076, now seen corresponding path program 5 times [2018-04-11 16:19:26,927 INFO L213 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS_NO_ARRAY [2018-04-11 16:19:26,927 INFO L68 tionRefinementEngine]: Using refinement strategy SmtInterpolRefinementStrategy [2018-04-11 16:19:26,927 INFO L119 rtionOrderModulation]: Craig nested/tree interpolation forces the following order [2018-04-11 16:19:26,927 INFO L101 rtionOrderModulation]: Changing assertion order to NOT_INCREMENTALLY [2018-04-11 16:19:26,927 INFO L119 rtionOrderModulation]: Craig nested/tree interpolation forces the following order [2018-04-11 16:19:26,939 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-04-11 16:19:26,939 WARN L137 erpolLogProxyWrapper]: Using partial proofs (cut at CNF-level). Set option :produce-proofs to true to get complete proofs. [2018-04-11 16:19:26,943 INFO L431 seRefinementStrategy]: Interpolation failed due to KNOWN_IGNORE: Unknown lemma type! [2018-04-11 16:19:26,944 INFO L308 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2018-04-11 16:19:26,944 INFO L213 ckRefinementStrategy]: Switched to mode SMTINTERPOL_FP [2018-04-11 16:19:26,944 INFO L103 rtionOrderModulation]: Keeping assertion order INSIDE_LOOP_FIRST1 [2018-04-11 16:19:26,981 INFO L242 tOrderPrioritization]: Assert order INSIDE_LOOP_FIRST1 issued 4 check-sat command(s) [2018-04-11 16:19:26,981 INFO L243 tOrderPrioritization]: Conjunction of SSA is unsat [2018-04-11 16:19:26,985 INFO L270 TraceCheckSpWp]: Computing forward predicates... [2018-04-11 16:19:27,011 INFO L700 Elim1Store]: detected not equals via solver [2018-04-11 16:19:27,012 INFO L700 Elim1Store]: detected not equals via solver [2018-04-11 16:19:27,012 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 2 select indices, 2 select index equivalence classes, 2 disjoint index pairs (out of 1 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 17 treesize of output 21 [2018-04-11 16:19:27,013 INFO L267 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2018-04-11 16:19:27,022 INFO L267 ElimStorePlain]: Start of recursive call 1: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-04-11 16:19:27,023 INFO L202 ElimStorePlain]: Needed 2 recursive calls to eliminate 1 variables, input treesize:32, output treesize:30 [2018-04-11 16:19:27,057 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 13 treesize of output 10 [2018-04-11 16:19:27,059 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 10 treesize of output 9 [2018-04-11 16:19:27,059 INFO L267 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 1 xjuncts. [2018-04-11 16:19:27,061 INFO L267 ElimStorePlain]: Start of recursive call 2: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-04-11 16:19:27,071 INFO L267 ElimStorePlain]: Start of recursive call 1: 1 dim-0 vars, 1 dim-2 vars, End of recursive call: and 1 xjuncts. [2018-04-11 16:19:27,071 INFO L202 ElimStorePlain]: Needed 3 recursive calls to eliminate 2 variables, input treesize:40, output treesize:39 [2018-04-11 16:19:27,130 INFO L700 Elim1Store]: detected not equals via solver [2018-04-11 16:19:27,131 INFO L700 Elim1Store]: detected not equals via solver [2018-04-11 16:19:27,132 INFO L700 Elim1Store]: detected not equals via solver [2018-04-11 16:19:27,132 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 3 select indices, 3 select index equivalence classes, 4 disjoint index pairs (out of 3 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 22 treesize of output 25 [2018-04-11 16:19:27,133 INFO L267 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2018-04-11 16:19:27,139 INFO L267 ElimStorePlain]: Start of recursive call 1: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-04-11 16:19:27,140 INFO L202 ElimStorePlain]: Needed 2 recursive calls to eliminate 1 variables, input treesize:47, output treesize:40 [2018-04-11 16:19:27,179 INFO L700 Elim1Store]: detected not equals via solver [2018-04-11 16:19:27,181 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 2 disjoint index pairs (out of 1 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 43 treesize of output 44 [2018-04-11 16:19:27,183 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 2 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 10 treesize of output 9 [2018-04-11 16:19:27,183 INFO L267 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 1 xjuncts. [2018-04-11 16:19:27,188 INFO L267 ElimStorePlain]: Start of recursive call 2: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-04-11 16:19:27,197 INFO L267 ElimStorePlain]: Start of recursive call 1: 1 dim-0 vars, 1 dim-2 vars, End of recursive call: and 1 xjuncts. [2018-04-11 16:19:27,197 INFO L202 ElimStorePlain]: Needed 3 recursive calls to eliminate 2 variables, input treesize:58, output treesize:57 [2018-04-11 16:19:27,260 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 18 treesize of output 17 [2018-04-11 16:19:27,261 INFO L267 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2018-04-11 16:19:27,272 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 6 treesize of output 5 [2018-04-11 16:19:27,273 INFO L267 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 1 xjuncts. [2018-04-11 16:19:27,282 INFO L267 ElimStorePlain]: Start of recursive call 1: 1 dim-0 vars, 2 dim-1 vars, End of recursive call: 1 dim-0 vars, and 1 xjuncts. [2018-04-11 16:19:27,282 INFO L202 ElimStorePlain]: Needed 3 recursive calls to eliminate 3 variables, input treesize:93, output treesize:91 [2018-04-11 16:19:27,330 INFO L700 Elim1Store]: detected not equals via solver [2018-04-11 16:19:27,331 INFO L700 Elim1Store]: detected not equals via solver [2018-04-11 16:19:27,335 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 3 select indices, 3 select index equivalence classes, 3 disjoint index pairs (out of 3 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 88 treesize of output 90 [2018-04-11 16:19:27,336 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 10 treesize of output 9 [2018-04-11 16:19:27,337 INFO L267 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 1 xjuncts. [2018-04-11 16:19:27,344 INFO L267 ElimStorePlain]: Start of recursive call 2: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-04-11 16:19:27,354 INFO L267 ElimStorePlain]: Start of recursive call 1: 2 dim-0 vars, 1 dim-2 vars, End of recursive call: 1 dim-0 vars, and 1 xjuncts. [2018-04-11 16:19:27,354 INFO L202 ElimStorePlain]: Needed 3 recursive calls to eliminate 3 variables, input treesize:104, output treesize:91 [2018-04-11 16:19:27,492 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 49 treesize of output 3 [2018-04-11 16:19:27,493 INFO L267 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2018-04-11 16:19:27,539 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 4 select indices, 4 select index equivalence classes, 3 disjoint index pairs (out of 6 index pairs), introduced 7 new quantified variables, introduced 9 case distinctions, treesize of input 181 treesize of output 150 [2018-04-11 16:19:27,540 WARN L130 XnfTransformerHelper]: expecting exponential blowup for input size 6 [2018-04-11 16:19:27,563 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 2 case distinctions, treesize of input 131 treesize of output 176 [2018-04-11 16:19:27,563 INFO L267 ElimStorePlain]: Start of recursive call 4: End of recursive call: and 2 xjuncts. [2018-04-11 16:19:32,495 INFO L682 Elim1Store]: detected equality via solver [2018-04-11 16:19:32,496 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 145 treesize of output 115 [2018-04-11 16:19:32,496 INFO L267 ElimStorePlain]: Start of recursive call 5: 1 dim-0 vars, End of recursive call: 1 dim-0 vars, and 1 xjuncts. [2018-04-11 16:19:33,226 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 1 select indices, 1 select index equivalence classes, 2 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 2 case distinctions, treesize of input 112 treesize of output 114 [2018-04-11 16:19:33,227 INFO L267 ElimStorePlain]: Start of recursive call 6: 1 dim-0 vars, End of recursive call: 1 dim-0 vars, and 2 xjuncts. [2018-04-11 16:19:34,063 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 160 treesize of output 159 [2018-04-11 16:19:34,063 INFO L267 ElimStorePlain]: Start of recursive call 7: End of recursive call: and 1 xjuncts. [2018-04-11 16:19:34,707 INFO L267 ElimStorePlain]: Start of recursive call 8: 1 dim-0 vars, End of recursive call: 1 dim-0 vars, and 1 xjuncts. [2018-04-11 16:19:35,333 INFO L267 ElimStorePlain]: Start of recursive call 3: 6 dim-0 vars, 5 dim-1 vars, End of recursive call: 6 dim-0 vars, and 8 xjuncts. [2018-04-11 16:19:36,001 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 132 treesize of output 123 [2018-04-11 16:19:36,002 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 16 treesize of output 15 [2018-04-11 16:19:36,003 INFO L267 ElimStorePlain]: Start of recursive call 10: End of recursive call: and 1 xjuncts. [2018-04-11 16:19:36,013 INFO L267 ElimStorePlain]: Start of recursive call 9: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-04-11 16:19:36,015 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 108 treesize of output 93 [2018-04-11 16:19:36,016 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 22 treesize of output 21 [2018-04-11 16:19:36,016 INFO L267 ElimStorePlain]: Start of recursive call 12: End of recursive call: and 1 xjuncts. [2018-04-11 16:19:36,024 INFO L267 ElimStorePlain]: Start of recursive call 11: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-04-11 16:19:36,026 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 115 treesize of output 106 [2018-04-11 16:19:36,027 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 16 treesize of output 15 [2018-04-11 16:19:36,027 INFO L267 ElimStorePlain]: Start of recursive call 14: End of recursive call: and 1 xjuncts. [2018-04-11 16:19:36,035 INFO L267 ElimStorePlain]: Start of recursive call 13: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-04-11 16:19:36,037 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 138 treesize of output 123 [2018-04-11 16:19:36,039 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 22 treesize of output 21 [2018-04-11 16:19:36,039 INFO L267 ElimStorePlain]: Start of recursive call 16: End of recursive call: and 1 xjuncts. [2018-04-11 16:19:36,048 INFO L267 ElimStorePlain]: Start of recursive call 15: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-04-11 16:19:36,050 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 127 treesize of output 118 [2018-04-11 16:19:36,051 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 16 treesize of output 15 [2018-04-11 16:19:36,052 INFO L267 ElimStorePlain]: Start of recursive call 18: End of recursive call: and 1 xjuncts. [2018-04-11 16:19:36,071 INFO L267 ElimStorePlain]: Start of recursive call 17: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-04-11 16:19:36,073 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 2 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 142 treesize of output 127 [2018-04-11 16:19:36,074 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 22 treesize of output 21 [2018-04-11 16:19:36,075 INFO L267 ElimStorePlain]: Start of recursive call 20: End of recursive call: and 1 xjuncts. [2018-04-11 16:19:36,087 INFO L267 ElimStorePlain]: Start of recursive call 19: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-04-11 16:19:36,089 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 159 treesize of output 138 [2018-04-11 16:19:36,090 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 28 treesize of output 27 [2018-04-11 16:19:36,090 INFO L267 ElimStorePlain]: Start of recursive call 22: End of recursive call: and 1 xjuncts. [2018-04-11 16:19:36,098 INFO L267 ElimStorePlain]: Start of recursive call 21: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-04-11 16:19:36,100 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 98 treesize of output 89 [2018-04-11 16:19:36,102 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 16 treesize of output 15 [2018-04-11 16:19:36,102 INFO L267 ElimStorePlain]: Start of recursive call 24: End of recursive call: and 1 xjuncts. [2018-04-11 16:19:36,110 INFO L267 ElimStorePlain]: Start of recursive call 23: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-04-11 16:19:36,230 INFO L267 ElimStorePlain]: Start of recursive call 1: 3 dim-0 vars, 1 dim-1 vars, 2 dim-2 vars, End of recursive call: 28 dim-0 vars, and 8 xjuncts. [2018-04-11 16:19:36,230 INFO L202 ElimStorePlain]: Needed 24 recursive calls to eliminate 6 variables, input treesize:238, output treesize:992 [2018-04-11 16:19:36,470 WARN L151 SmtUtils]: Spent 145ms on a formula simplification. DAG size of input: 251 DAG size of output 123 [2018-04-11 16:19:36,615 WARN L148 SmtUtils]: Spent 102ms on a formula simplification that was a NOOP. DAG size: 123 [2018-04-11 16:19:36,645 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 167 treesize of output 171 [2018-04-11 16:19:36,651 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 167 treesize of output 160 [2018-04-11 16:19:36,651 INFO L267 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 1 xjuncts. [2018-04-11 16:19:36,698 INFO L682 Elim1Store]: detected equality via solver [2018-04-11 16:19:36,698 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 145 treesize of output 141 [2018-04-11 16:19:36,699 INFO L267 ElimStorePlain]: Start of recursive call 4: End of recursive call: and 1 xjuncts. [2018-04-11 16:19:36,769 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 160 treesize of output 153 [2018-04-11 16:19:36,770 INFO L267 ElimStorePlain]: Start of recursive call 5: End of recursive call: and 1 xjuncts. [2018-04-11 16:19:36,804 INFO L267 ElimStorePlain]: Start of recursive call 2: 3 dim-1 vars, End of recursive call: and 2 xjuncts. [2018-04-11 16:19:36,919 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 3 select indices, 3 select index equivalence classes, 3 disjoint index pairs (out of 3 index pairs), introduced 5 new quantified variables, introduced 0 case distinctions, treesize of input 167 treesize of output 109 [2018-04-11 16:19:36,922 INFO L682 Elim1Store]: detected equality via solver [2018-04-11 16:19:36,922 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 15 treesize of output 11 [2018-04-11 16:19:36,923 INFO L267 ElimStorePlain]: Start of recursive call 7: End of recursive call: and 1 xjuncts. [2018-04-11 16:19:36,936 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 2 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 21 treesize of output 13 [2018-04-11 16:19:36,936 INFO L267 ElimStorePlain]: Start of recursive call 8: End of recursive call: and 1 xjuncts. [2018-04-11 16:19:36,946 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 44 treesize of output 28 [2018-04-11 16:19:36,946 INFO L267 ElimStorePlain]: Start of recursive call 9: 1 dim-0 vars, End of recursive call: 1 dim-0 vars, and 1 xjuncts. [2018-04-11 16:19:36,959 INFO L267 ElimStorePlain]: Start of recursive call 6: 3 dim-1 vars, End of recursive call: 1 dim-0 vars, and 1 xjuncts. [2018-04-11 16:19:37,062 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 4 select indices, 4 select index equivalence classes, 3 disjoint index pairs (out of 6 index pairs), introduced 6 new quantified variables, introduced 3 case distinctions, treesize of input 135 treesize of output 115 [2018-04-11 16:19:37,066 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 3 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 105 treesize of output 93 [2018-04-11 16:19:37,066 INFO L267 ElimStorePlain]: Start of recursive call 11: End of recursive call: and 1 xjuncts. [2018-04-11 16:19:37,213 INFO L682 Elim1Store]: detected equality via solver [2018-04-11 16:19:37,213 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 2 select indices, 2 select index equivalence classes, 2 disjoint index pairs (out of 1 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 97 treesize of output 74 [2018-04-11 16:19:37,214 INFO L267 ElimStorePlain]: Start of recursive call 12: End of recursive call: and 1 xjuncts. [2018-04-11 16:19:37,333 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 3 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 74 treesize of output 62 [2018-04-11 16:19:37,334 INFO L267 ElimStorePlain]: Start of recursive call 13: End of recursive call: and 1 xjuncts. [2018-04-11 16:19:37,459 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 73 treesize of output 66 [2018-04-11 16:19:37,459 INFO L267 ElimStorePlain]: Start of recursive call 14: End of recursive call: and 1 xjuncts. [2018-04-11 16:19:37,585 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 3 select indices, 3 select index equivalence classes, 3 disjoint index pairs (out of 3 index pairs), introduced 2 new quantified variables, introduced 3 case distinctions, treesize of input 85 treesize of output 98 [2018-04-11 16:19:37,586 INFO L267 ElimStorePlain]: Start of recursive call 15: 3 dim-0 vars, End of recursive call: 3 dim-0 vars, and 8 xjuncts. [2018-04-11 16:19:37,776 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 66 treesize of output 51 [2018-04-11 16:19:37,776 INFO L267 ElimStorePlain]: Start of recursive call 16: End of recursive call: and 1 xjuncts. [2018-04-11 16:19:37,975 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 66 treesize of output 51 [2018-04-11 16:19:37,975 INFO L267 ElimStorePlain]: Start of recursive call 17: End of recursive call: and 1 xjuncts. [2018-04-11 16:19:37,977 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 74 treesize of output 59 [2018-04-11 16:19:37,977 INFO L267 ElimStorePlain]: Start of recursive call 18: End of recursive call: and 1 xjuncts. [2018-04-11 16:19:37,978 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 2 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 58 treesize of output 39 [2018-04-11 16:19:37,978 INFO L267 ElimStorePlain]: Start of recursive call 19: End of recursive call: and 1 xjuncts. [2018-04-11 16:19:37,980 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 2 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 78 treesize of output 59 [2018-04-11 16:19:37,980 INFO L267 ElimStorePlain]: Start of recursive call 20: End of recursive call: and 1 xjuncts. [2018-04-11 16:19:37,981 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 2 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 74 treesize of output 55 [2018-04-11 16:19:37,981 INFO L267 ElimStorePlain]: Start of recursive call 21: End of recursive call: and 1 xjuncts. [2018-04-11 16:19:38,165 INFO L700 Elim1Store]: detected not equals via solver [2018-04-11 16:19:38,166 INFO L682 Elim1Store]: detected equality via solver [2018-04-11 16:19:38,174 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 4 select indices, 4 select index equivalence classes, 5 disjoint index pairs (out of 6 index pairs), introduced 2 new quantified variables, introduced 3 case distinctions, treesize of input 77 treesize of output 74 [2018-04-11 16:19:38,175 INFO L267 ElimStorePlain]: Start of recursive call 22: 2 dim-0 vars, End of recursive call: 2 dim-0 vars, and 3 xjuncts. [2018-04-11 16:19:38,356 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 2 select indices, 2 select index equivalence classes, 3 disjoint index pairs (out of 1 index pairs), introduced 1 new quantified variables, introduced 1 case distinctions, treesize of input 97 treesize of output 90 [2018-04-11 16:19:38,356 INFO L267 ElimStorePlain]: Start of recursive call 23: End of recursive call: and 2 xjuncts. [2018-04-11 16:19:38,545 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 2 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 51 treesize of output 39 [2018-04-11 16:19:38,545 INFO L267 ElimStorePlain]: Start of recursive call 24: 1 dim-0 vars, End of recursive call: 1 dim-0 vars, and 1 xjuncts. [2018-04-11 16:19:38,727 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 2 select indices, 2 select index equivalence classes, 2 disjoint index pairs (out of 1 index pairs), introduced 1 new quantified variables, introduced 1 case distinctions, treesize of input 93 treesize of output 86 [2018-04-11 16:19:38,728 INFO L267 ElimStorePlain]: Start of recursive call 25: 1 dim-0 vars, End of recursive call: 1 dim-0 vars, and 2 xjuncts. [2018-04-11 16:19:38,959 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 46 treesize of output 38 [2018-04-11 16:19:38,959 INFO L267 ElimStorePlain]: Start of recursive call 26: 1 dim-0 vars, End of recursive call: 1 dim-0 vars, and 1 xjuncts. [2018-04-11 16:19:39,142 INFO L700 Elim1Store]: detected not equals via solver [2018-04-11 16:19:39,143 INFO L682 Elim1Store]: detected equality via solver [2018-04-11 16:19:39,143 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 3 select indices, 3 select index equivalence classes, 4 disjoint index pairs (out of 3 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 85 treesize of output 62 [2018-04-11 16:19:39,143 INFO L267 ElimStorePlain]: Start of recursive call 27: 1 dim-0 vars, End of recursive call: 1 dim-0 vars, and 1 xjuncts. [2018-04-11 16:19:39,326 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 2 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 62 treesize of output 54 [2018-04-11 16:19:39,326 INFO L267 ElimStorePlain]: Start of recursive call 28: End of recursive call: and 1 xjuncts. [2018-04-11 16:19:39,499 INFO L700 Elim1Store]: detected not equals via solver [2018-04-11 16:19:39,499 INFO L682 Elim1Store]: detected equality via solver [2018-04-11 16:19:39,499 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 3 select indices, 3 select index equivalence classes, 6 disjoint index pairs (out of 3 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 89 treesize of output 62 [2018-04-11 16:19:39,500 INFO L267 ElimStorePlain]: Start of recursive call 29: End of recursive call: and 1 xjuncts. [2018-04-11 16:19:39,663 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 2 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 82 treesize of output 63 [2018-04-11 16:19:39,663 INFO L267 ElimStorePlain]: Start of recursive call 30: End of recursive call: and 1 xjuncts. [2018-04-11 16:19:39,820 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 2 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 70 treesize of output 51 [2018-04-11 16:19:39,820 INFO L267 ElimStorePlain]: Start of recursive call 31: End of recursive call: and 1 xjuncts. [2018-04-11 16:19:39,821 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 66 treesize of output 51 [2018-04-11 16:19:39,822 INFO L267 ElimStorePlain]: Start of recursive call 32: End of recursive call: and 1 xjuncts. [2018-04-11 16:19:39,967 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 51 treesize of output 43 [2018-04-11 16:19:39,968 INFO L267 ElimStorePlain]: Start of recursive call 33: 1 dim-0 vars, End of recursive call: 1 dim-0 vars, and 1 xjuncts. [2018-04-11 16:19:39,969 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 51 treesize of output 43 [2018-04-11 16:19:39,969 INFO L267 ElimStorePlain]: Start of recursive call 34: 1 dim-0 vars, End of recursive call: 1 dim-0 vars, and 1 xjuncts. [2018-04-11 16:19:40,111 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 2 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 63 treesize of output 55 [2018-04-11 16:19:40,111 INFO L267 ElimStorePlain]: Start of recursive call 35: End of recursive call: and 1 xjuncts. [2018-04-11 16:19:40,268 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 46 treesize of output 42 [2018-04-11 16:19:40,268 INFO L267 ElimStorePlain]: Start of recursive call 36: 1 dim-0 vars, End of recursive call: 1 dim-0 vars, and 1 xjuncts. [2018-04-11 16:19:40,412 INFO L267 ElimStorePlain]: Start of recursive call 10: 20 dim-1 vars, End of recursive call: 11 dim-0 vars, and 13 xjuncts. [2018-04-11 16:19:40,423 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 4 select indices, 4 select index equivalence classes, 4 disjoint index pairs (out of 6 index pairs), introduced 6 new quantified variables, introduced 2 case distinctions, treesize of input 153 treesize of output 111 [2018-04-11 16:19:40,426 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 2 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 93 treesize of output 74 [2018-04-11 16:19:40,426 INFO L267 ElimStorePlain]: Start of recursive call 38: End of recursive call: and 1 xjuncts. [2018-04-11 16:19:40,482 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 2 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 74 treesize of output 62 [2018-04-11 16:19:40,482 INFO L267 ElimStorePlain]: Start of recursive call 39: 1 dim-0 vars, End of recursive call: 1 dim-0 vars, and 1 xjuncts. [2018-04-11 16:19:40,538 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 3 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 101 treesize of output 85 [2018-04-11 16:19:40,539 INFO L267 ElimStorePlain]: Start of recursive call 40: 1 dim-0 vars, End of recursive call: 1 dim-0 vars, and 1 xjuncts. [2018-04-11 16:19:40,626 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 2 select indices, 2 select index equivalence classes, 3 disjoint index pairs (out of 1 index pairs), introduced 1 new quantified variables, introduced 1 case distinctions, treesize of input 62 treesize of output 55 [2018-04-11 16:19:40,627 INFO L267 ElimStorePlain]: Start of recursive call 41: End of recursive call: and 2 xjuncts. [2018-04-11 16:19:40,690 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 85 treesize of output 78 [2018-04-11 16:19:40,690 INFO L267 ElimStorePlain]: Start of recursive call 42: End of recursive call: and 1 xjuncts. [2018-04-11 16:19:40,763 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 3 select indices, 3 select index equivalence classes, 3 disjoint index pairs (out of 3 index pairs), introduced 2 new quantified variables, introduced 3 case distinctions, treesize of input 81 treesize of output 94 [2018-04-11 16:19:40,765 INFO L267 ElimStorePlain]: Start of recursive call 43: 3 dim-0 vars, End of recursive call: 3 dim-0 vars, and 8 xjuncts. [2018-04-11 16:19:40,890 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 3 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 78 treesize of output 66 [2018-04-11 16:19:40,890 INFO L267 ElimStorePlain]: Start of recursive call 44: End of recursive call: and 1 xjuncts. [2018-04-11 16:19:41,013 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 70 treesize of output 55 [2018-04-11 16:19:41,013 INFO L267 ElimStorePlain]: Start of recursive call 45: End of recursive call: and 1 xjuncts. [2018-04-11 16:19:41,014 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 2 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 70 treesize of output 51 [2018-04-11 16:19:41,014 INFO L267 ElimStorePlain]: Start of recursive call 46: End of recursive call: and 1 xjuncts. [2018-04-11 16:19:41,015 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 2 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 54 treesize of output 35 [2018-04-11 16:19:41,015 INFO L267 ElimStorePlain]: Start of recursive call 47: End of recursive call: and 1 xjuncts. [2018-04-11 16:19:41,017 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 2 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 74 treesize of output 55 [2018-04-11 16:19:41,017 INFO L267 ElimStorePlain]: Start of recursive call 48: End of recursive call: and 1 xjuncts. [2018-04-11 16:19:41,018 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 62 treesize of output 47 [2018-04-11 16:19:41,018 INFO L267 ElimStorePlain]: Start of recursive call 49: End of recursive call: and 1 xjuncts. [2018-04-11 16:19:41,141 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 2 select indices, 2 select index equivalence classes, 2 disjoint index pairs (out of 1 index pairs), introduced 1 new quantified variables, introduced 1 case distinctions, treesize of input 89 treesize of output 82 [2018-04-11 16:19:41,141 INFO L267 ElimStorePlain]: Start of recursive call 50: 1 dim-0 vars, End of recursive call: 1 dim-0 vars, and 2 xjuncts. [2018-04-11 16:19:41,257 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 2 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 78 treesize of output 70 [2018-04-11 16:19:41,257 INFO L267 ElimStorePlain]: Start of recursive call 51: End of recursive call: and 1 xjuncts. [2018-04-11 16:19:41,359 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 50 treesize of output 35 [2018-04-11 16:19:41,359 INFO L267 ElimStorePlain]: Start of recursive call 52: End of recursive call: and 1 xjuncts. [2018-04-11 16:19:41,454 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 58 treesize of output 43 [2018-04-11 16:19:41,454 INFO L267 ElimStorePlain]: Start of recursive call 53: End of recursive call: and 1 xjuncts. [2018-04-11 16:19:41,550 INFO L267 ElimStorePlain]: Start of recursive call 37: 12 dim-1 vars, End of recursive call: 7 dim-0 vars, and 9 xjuncts. [2018-04-11 16:19:41,868 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 2 select indices, 2 select index equivalence classes, 2 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 149 treesize of output 133 [2018-04-11 16:19:41,869 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 7 treesize of output 1 [2018-04-11 16:19:41,869 INFO L267 ElimStorePlain]: Start of recursive call 55: End of recursive call: and 1 xjuncts. [2018-04-11 16:19:41,891 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 7 treesize of output 1 [2018-04-11 16:19:41,892 INFO L267 ElimStorePlain]: Start of recursive call 56: End of recursive call: and 1 xjuncts. [2018-04-11 16:19:41,902 INFO L267 ElimStorePlain]: Start of recursive call 54: 2 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-04-11 16:19:42,212 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 49 treesize of output 45 [2018-04-11 16:19:42,214 INFO L682 Elim1Store]: detected equality via solver [2018-04-11 16:19:42,214 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 15 treesize of output 11 [2018-04-11 16:19:42,214 INFO L267 ElimStorePlain]: Start of recursive call 58: End of recursive call: and 1 xjuncts. [2018-04-11 16:19:42,221 INFO L267 ElimStorePlain]: Start of recursive call 57: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-04-11 16:19:42,548 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 3 select indices, 3 select index equivalence classes, 3 disjoint index pairs (out of 3 index pairs), introduced 4 new quantified variables, introduced 0 case distinctions, treesize of input 119 treesize of output 80 [2018-04-11 16:19:42,556 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 7 treesize of output 1 [2018-04-11 16:19:42,556 INFO L267 ElimStorePlain]: Start of recursive call 60: End of recursive call: and 1 xjuncts. [2018-04-11 16:19:42,566 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 2 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 37 treesize of output 18 [2018-04-11 16:19:42,566 INFO L267 ElimStorePlain]: Start of recursive call 61: End of recursive call: and 1 xjuncts. [2018-04-11 16:19:42,573 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 2 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 26 treesize of output 14 [2018-04-11 16:19:42,573 INFO L267 ElimStorePlain]: Start of recursive call 62: 1 dim-0 vars, End of recursive call: 1 dim-0 vars, and 1 xjuncts. [2018-04-11 16:19:42,579 INFO L267 ElimStorePlain]: Start of recursive call 59: 3 dim-1 vars, End of recursive call: 1 dim-0 vars, and 1 xjuncts. [2018-04-11 16:19:42,882 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 3 select indices, 3 select index equivalence classes, 3 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 0 case distinctions, treesize of input 111 treesize of output 93 [2018-04-11 16:19:42,884 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 2 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 57 treesize of output 46 [2018-04-11 16:19:42,884 INFO L267 ElimStorePlain]: Start of recursive call 64: End of recursive call: and 1 xjuncts. [2018-04-11 16:19:42,896 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 7 treesize of output 1 [2018-04-11 16:19:42,896 INFO L267 ElimStorePlain]: Start of recursive call 65: End of recursive call: and 1 xjuncts. [2018-04-11 16:19:42,906 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 2 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 46 treesize of output 23 [2018-04-11 16:19:42,906 INFO L267 ElimStorePlain]: Start of recursive call 66: End of recursive call: and 1 xjuncts. [2018-04-11 16:19:42,914 INFO L267 ElimStorePlain]: Start of recursive call 63: 3 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-04-11 16:19:43,198 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 2 select indices, 2 select index equivalence classes, 3 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 48 treesize of output 44 [2018-04-11 16:19:43,199 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 7 treesize of output 1 [2018-04-11 16:19:43,200 INFO L267 ElimStorePlain]: Start of recursive call 68: End of recursive call: and 1 xjuncts. [2018-04-11 16:19:43,207 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 7 treesize of output 1 [2018-04-11 16:19:43,207 INFO L267 ElimStorePlain]: Start of recursive call 69: End of recursive call: and 1 xjuncts. [2018-04-11 16:19:43,212 INFO L267 ElimStorePlain]: Start of recursive call 67: 2 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-04-11 16:19:43,503 INFO L267 ElimStorePlain]: Start of recursive call 1: 19 dim-0 vars, 8 dim-2 vars, End of recursive call: 21 dim-0 vars, and 23 xjuncts. [2018-04-11 16:19:43,503 INFO L202 ElimStorePlain]: Needed 69 recursive calls to eliminate 27 variables, input treesize:595, output treesize:363 [2018-04-11 16:19:43,647 INFO L134 CoverageAnalysis]: Checked inductivity of 48 backedges. 0 proven. 48 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-04-11 16:19:43,647 INFO L320 seRefinementStrategy]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2018-04-11 16:19:43,647 INFO L335 seRefinementStrategy]: Number of different interpolants: perfect sequences [] imperfect sequences [26] total 26 [2018-04-11 16:19:43,647 INFO L442 AbstractCegarLoop]: Interpolant automaton has 27 states [2018-04-11 16:19:43,648 INFO L132 InterpolantAutomaton]: Constructing interpolant automaton starting with 27 interpolants. [2018-04-11 16:19:43,648 INFO L133 InterpolantAutomaton]: CoverageRelationStatistics Valid=98, Invalid=604, Unknown=0, NotChecked=0, Total=702 [2018-04-11 16:19:43,648 INFO L87 Difference]: Start difference. First operand 153 states and 164 transitions. Second operand 27 states. [2018-04-11 16:19:45,114 WARN L151 SmtUtils]: Spent 150ms on a formula simplification. DAG size of input: 202 DAG size of output 129 [2018-04-11 16:19:45,449 WARN L151 SmtUtils]: Spent 238ms on a formula simplification. DAG size of input: 204 DAG size of output 131 [2018-04-11 16:19:45,704 WARN L151 SmtUtils]: Spent 190ms on a formula simplification. DAG size of input: 219 DAG size of output 139 [2018-04-11 16:19:46,154 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-04-11 16:19:46,155 INFO L93 Difference]: Finished difference Result 207 states and 222 transitions. [2018-04-11 16:19:46,156 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 34 states. [2018-04-11 16:19:46,156 INFO L78 Accepts]: Start accepts. Automaton has 27 states. Word has length 58 [2018-04-11 16:19:46,156 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-04-11 16:19:46,156 INFO L225 Difference]: With dead ends: 207 [2018-04-11 16:19:46,157 INFO L226 Difference]: Without dead ends: 207 [2018-04-11 16:19:46,157 INFO L567 BasicCegarLoop]: 0 DeclaredPredicates, 88 GetRequests, 31 SyntacticMatches, 1 SemanticMatches, 56 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 740 ImplicationChecksByTransitivity, 2.5s TimeCoverageRelationStatistics Valid=504, Invalid=2802, Unknown=0, NotChecked=0, Total=3306 [2018-04-11 16:19:46,157 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 207 states. [2018-04-11 16:19:46,159 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 207 to 176. [2018-04-11 16:19:46,159 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 176 states. [2018-04-11 16:19:46,159 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 176 states to 176 states and 191 transitions. [2018-04-11 16:19:46,159 INFO L78 Accepts]: Start accepts. Automaton has 176 states and 191 transitions. Word has length 58 [2018-04-11 16:19:46,159 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-04-11 16:19:46,159 INFO L459 AbstractCegarLoop]: Abstraction has 176 states and 191 transitions. [2018-04-11 16:19:46,159 INFO L460 AbstractCegarLoop]: Interpolant automaton has 27 states. [2018-04-11 16:19:46,159 INFO L276 IsEmpty]: Start isEmpty. Operand 176 states and 191 transitions. [2018-04-11 16:19:46,160 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 59 [2018-04-11 16:19:46,160 INFO L347 BasicCegarLoop]: Found error trace [2018-04-11 16:19:46,160 INFO L355 BasicCegarLoop]: trace histogram [4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-04-11 16:19:46,160 INFO L408 AbstractCegarLoop]: === Iteration 23 === [mainErr5RequiresViolation, mainErr13RequiresViolation, mainErr1RequiresViolation, mainErr9RequiresViolation, mainErr0RequiresViolation, mainErr18EnsuresViolationMEMORY_LEAK, mainErr17AssertViolationMEMORY_FREE, mainErr3RequiresViolation, mainErr7RequiresViolation, mainErr11RequiresViolation, mainErr8RequiresViolation, mainErr10RequiresViolation, mainErr15RequiresViolation, mainErr2RequiresViolation, mainErr4RequiresViolation, mainErr12RequiresViolation, mainErr6RequiresViolation, mainErr16AssertViolationMEMORY_FREE, mainErr14RequiresViolation]=== [2018-04-11 16:19:46,160 INFO L82 PathProgramCache]: Analyzing trace with hash 1528970077, now seen corresponding path program 4 times [2018-04-11 16:19:46,160 INFO L213 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS_NO_ARRAY [2018-04-11 16:19:46,160 INFO L68 tionRefinementEngine]: Using refinement strategy SmtInterpolRefinementStrategy [2018-04-11 16:19:46,161 INFO L119 rtionOrderModulation]: Craig nested/tree interpolation forces the following order [2018-04-11 16:19:46,161 INFO L101 rtionOrderModulation]: Changing assertion order to NOT_INCREMENTALLY [2018-04-11 16:19:46,161 INFO L119 rtionOrderModulation]: Craig nested/tree interpolation forces the following order [2018-04-11 16:19:46,169 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-04-11 16:19:46,169 WARN L137 erpolLogProxyWrapper]: Using partial proofs (cut at CNF-level). Set option :produce-proofs to true to get complete proofs. [2018-04-11 16:19:46,173 INFO L431 seRefinementStrategy]: Interpolation failed due to KNOWN_IGNORE: Unknown lemma type! [2018-04-11 16:19:46,174 INFO L308 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2018-04-11 16:19:46,174 INFO L213 ckRefinementStrategy]: Switched to mode SMTINTERPOL_FP [2018-04-11 16:19:46,174 INFO L103 rtionOrderModulation]: Keeping assertion order TERMS_WITH_SMALL_CONSTANTS_FIRST [2018-04-11 16:19:46,194 INFO L242 tOrderPrioritization]: Assert order TERMS_WITH_SMALL_CONSTANTS_FIRST issued 0 check-sat command(s) [2018-04-11 16:19:46,194 INFO L243 tOrderPrioritization]: Conjunction of SSA is unsat [2018-04-11 16:19:46,197 INFO L270 TraceCheckSpWp]: Computing forward predicates... [2018-04-11 16:19:46,198 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 6 treesize of output 5 [2018-04-11 16:19:46,198 INFO L267 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2018-04-11 16:19:46,201 INFO L267 ElimStorePlain]: Start of recursive call 1: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-04-11 16:19:46,201 INFO L202 ElimStorePlain]: Needed 2 recursive calls to eliminate 1 variables, input treesize:10, output treesize:9 [2018-04-11 16:19:46,217 INFO L700 Elim1Store]: detected not equals via solver [2018-04-11 16:19:46,218 INFO L700 Elim1Store]: detected not equals via solver [2018-04-11 16:19:46,218 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 2 select indices, 2 select index equivalence classes, 2 disjoint index pairs (out of 1 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 11 treesize of output 4 [2018-04-11 16:19:46,218 INFO L267 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2018-04-11 16:19:46,222 INFO L267 ElimStorePlain]: Start of recursive call 1: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-04-11 16:19:46,222 INFO L202 ElimStorePlain]: Needed 2 recursive calls to eliminate 1 variables, input treesize:23, output treesize:17 [2018-04-11 16:19:46,239 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 13 treesize of output 10 [2018-04-11 16:19:46,240 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 10 treesize of output 9 [2018-04-11 16:19:46,241 INFO L267 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 1 xjuncts. [2018-04-11 16:19:46,242 INFO L267 ElimStorePlain]: Start of recursive call 2: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-04-11 16:19:46,251 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 13 treesize of output 10 [2018-04-11 16:19:46,252 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 10 treesize of output 9 [2018-04-11 16:19:46,252 INFO L267 ElimStorePlain]: Start of recursive call 5: End of recursive call: and 1 xjuncts. [2018-04-11 16:19:46,253 INFO L267 ElimStorePlain]: Start of recursive call 4: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-04-11 16:19:46,260 INFO L267 ElimStorePlain]: Start of recursive call 1: 1 dim-0 vars, 2 dim-2 vars, End of recursive call: and 1 xjuncts. [2018-04-11 16:19:46,260 INFO L202 ElimStorePlain]: Needed 5 recursive calls to eliminate 3 variables, input treesize:45, output treesize:34 [2018-04-11 16:19:46,337 INFO L700 Elim1Store]: detected not equals via solver [2018-04-11 16:19:46,338 INFO L700 Elim1Store]: detected not equals via solver [2018-04-11 16:19:46,338 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 2 select indices, 2 select index equivalence classes, 2 disjoint index pairs (out of 1 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 11 treesize of output 4 [2018-04-11 16:19:46,339 INFO L267 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2018-04-11 16:19:46,347 INFO L267 ElimStorePlain]: Start of recursive call 1: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-04-11 16:19:46,347 INFO L202 ElimStorePlain]: Needed 2 recursive calls to eliminate 1 variables, input treesize:51, output treesize:45 [2018-04-11 16:19:46,387 INFO L700 Elim1Store]: detected not equals via solver [2018-04-11 16:19:46,390 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 2 disjoint index pairs (out of 1 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 32 treesize of output 39 [2018-04-11 16:19:46,392 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 16 treesize of output 15 [2018-04-11 16:19:46,392 INFO L267 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 1 xjuncts. [2018-04-11 16:19:46,399 INFO L267 ElimStorePlain]: Start of recursive call 2: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-04-11 16:19:46,416 INFO L700 Elim1Store]: detected not equals via solver [2018-04-11 16:19:46,419 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 2 disjoint index pairs (out of 1 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 48 treesize of output 49 [2018-04-11 16:19:46,421 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 10 treesize of output 9 [2018-04-11 16:19:46,421 INFO L267 ElimStorePlain]: Start of recursive call 5: End of recursive call: and 1 xjuncts. [2018-04-11 16:19:46,428 INFO L267 ElimStorePlain]: Start of recursive call 4: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-04-11 16:19:46,440 INFO L267 ElimStorePlain]: Start of recursive call 1: 2 dim-0 vars, 2 dim-2 vars, End of recursive call: and 1 xjuncts. [2018-04-11 16:19:46,441 INFO L202 ElimStorePlain]: Needed 5 recursive calls to eliminate 4 variables, input treesize:78, output treesize:48 [2018-04-11 16:19:46,517 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 2 case distinctions, treesize of input 26 treesize of output 38 [2018-04-11 16:19:46,517 INFO L267 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 2 xjuncts. [2018-04-11 16:19:46,534 INFO L267 ElimStorePlain]: Start of recursive call 1: 1 dim-0 vars, 1 dim-1 vars, End of recursive call: 1 dim-0 vars, and 1 xjuncts. [2018-04-11 16:19:46,535 INFO L202 ElimStorePlain]: Needed 2 recursive calls to eliminate 2 variables, input treesize:84, output treesize:83 [2018-04-11 16:19:46,616 INFO L700 Elim1Store]: detected not equals via solver [2018-04-11 16:19:46,620 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 1 disjoint index pairs (out of 1 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 85 treesize of output 86 [2018-04-11 16:19:46,622 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 10 treesize of output 9 [2018-04-11 16:19:46,622 INFO L267 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 1 xjuncts. [2018-04-11 16:19:46,632 INFO L267 ElimStorePlain]: Start of recursive call 2: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-04-11 16:19:46,649 INFO L700 Elim1Store]: detected not equals via solver [2018-04-11 16:19:46,649 INFO L700 Elim1Store]: detected not equals via solver [2018-04-11 16:19:46,673 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 3 select indices, 3 select index equivalence classes, 2 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 3 case distinctions, treesize of input 76 treesize of output 97 [2018-04-11 16:19:46,676 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 97 treesize of output 96 [2018-04-11 16:19:46,677 INFO L267 ElimStorePlain]: Start of recursive call 5: End of recursive call: and 1 xjuncts. [2018-04-11 16:19:46,710 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 2 case distinctions, treesize of input 62 treesize of output 77 [2018-04-11 16:19:46,711 INFO L267 ElimStorePlain]: Start of recursive call 6: End of recursive call: and 2 xjuncts. [2018-04-11 16:19:46,727 INFO L267 ElimStorePlain]: Start of recursive call 4: 2 dim-1 vars, End of recursive call: and 2 xjuncts. [2018-04-11 16:19:46,743 INFO L267 ElimStorePlain]: Start of recursive call 1: 2 dim-0 vars, 2 dim-2 vars, End of recursive call: 2 dim-0 vars, and 2 xjuncts. [2018-04-11 16:19:46,743 INFO L202 ElimStorePlain]: Needed 6 recursive calls to eliminate 4 variables, input treesize:106, output treesize:168 [2018-04-11 16:19:46,895 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 3 case distinctions, treesize of input 130 treesize of output 134 [2018-04-11 16:19:46,898 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 131 treesize of output 130 [2018-04-11 16:19:46,898 INFO L267 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 1 xjuncts. [2018-04-11 16:19:46,942 INFO L682 Elim1Store]: detected equality via solver [2018-04-11 16:19:46,943 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 120 treesize of output 106 [2018-04-11 16:19:46,943 INFO L267 ElimStorePlain]: Start of recursive call 4: 1 dim-0 vars, End of recursive call: 1 dim-0 vars, and 1 xjuncts. [2018-04-11 16:19:46,974 INFO L267 ElimStorePlain]: Start of recursive call 2: 2 dim-1 vars, End of recursive call: 1 dim-0 vars, and 2 xjuncts. [2018-04-11 16:19:47,068 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 3 select indices, 3 select index equivalence classes, 1 disjoint index pairs (out of 3 index pairs), introduced 4 new quantified variables, introduced 6 case distinctions, treesize of input 160 treesize of output 140 [2018-04-11 16:19:47,071 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 183 treesize of output 182 [2018-04-11 16:19:47,072 INFO L267 ElimStorePlain]: Start of recursive call 6: End of recursive call: and 1 xjuncts. [2018-04-11 16:19:47,169 INFO L267 ElimStorePlain]: Start of recursive call 5: 2 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-04-11 16:19:47,231 INFO L700 Elim1Store]: detected not equals via solver [2018-04-11 16:19:47,249 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 3 select indices, 3 select index equivalence classes, 1 disjoint index pairs (out of 3 index pairs), introduced 4 new quantified variables, introduced 6 case distinctions, treesize of input 156 treesize of output 168 [2018-04-11 16:19:47,255 INFO L682 Elim1Store]: detected equality via solver [2018-04-11 16:19:47,256 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 144 treesize of output 122 [2018-04-11 16:19:47,256 INFO L267 ElimStorePlain]: Start of recursive call 8: 1 dim-0 vars, End of recursive call: 1 dim-0 vars, and 1 xjuncts. [2018-04-11 16:19:47,396 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 153 treesize of output 152 [2018-04-11 16:19:47,396 INFO L267 ElimStorePlain]: Start of recursive call 9: End of recursive call: and 1 xjuncts. [2018-04-11 16:19:47,484 INFO L682 Elim1Store]: detected equality via solver [2018-04-11 16:19:47,485 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 123 treesize of output 109 [2018-04-11 16:19:47,486 INFO L267 ElimStorePlain]: Start of recursive call 10: 1 dim-0 vars, End of recursive call: 1 dim-0 vars, and 1 xjuncts. [2018-04-11 16:19:47,628 INFO L267 ElimStorePlain]: Start of recursive call 7: 2 dim-0 vars, 4 dim-1 vars, End of recursive call: 3 dim-0 vars, and 5 xjuncts. [2018-04-11 16:19:47,765 INFO L682 Elim1Store]: detected equality via solver [2018-04-11 16:19:47,767 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 3 select indices, 3 select index equivalence classes, 1 disjoint index pairs (out of 3 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 91 treesize of output 101 [2018-04-11 16:19:47,769 INFO L682 Elim1Store]: detected equality via solver [2018-04-11 16:19:47,769 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 73 treesize of output 26 [2018-04-11 16:19:47,769 INFO L267 ElimStorePlain]: Start of recursive call 12: End of recursive call: and 1 xjuncts. [2018-04-11 16:19:47,776 INFO L267 ElimStorePlain]: Start of recursive call 11: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-04-11 16:19:47,796 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 3 select indices, 3 select index equivalence classes, 1 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 6 case distinctions, treesize of input 126 treesize of output 127 [2018-04-11 16:19:47,798 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 137 treesize of output 136 [2018-04-11 16:19:47,799 INFO L267 ElimStorePlain]: Start of recursive call 14: End of recursive call: and 1 xjuncts. [2018-04-11 16:19:47,832 INFO L267 ElimStorePlain]: Start of recursive call 13: 1 dim-1 vars, End of recursive call: and 2 xjuncts. [2018-04-11 16:19:47,939 INFO L267 ElimStorePlain]: Start of recursive call 1: 5 dim-0 vars, 4 dim-2 vars, End of recursive call: 18 dim-0 vars, and 7 xjuncts. [2018-04-11 16:19:47,939 INFO L202 ElimStorePlain]: Needed 14 recursive calls to eliminate 9 variables, input treesize:291, output treesize:753 [2018-04-11 16:19:48,129 WARN L151 SmtUtils]: Spent 114ms on a formula simplification. DAG size of input: 162 DAG size of output 101 [2018-04-11 16:19:48,273 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 2 select indices, 2 select index equivalence classes, 2 disjoint index pairs (out of 1 index pairs), introduced 3 new quantified variables, introduced 0 case distinctions, treesize of input 82 treesize of output 73 [2018-04-11 16:19:48,275 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 7 treesize of output 1 [2018-04-11 16:19:48,275 INFO L267 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 1 xjuncts. [2018-04-11 16:19:48,283 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 32 treesize of output 21 [2018-04-11 16:19:48,284 INFO L267 ElimStorePlain]: Start of recursive call 4: End of recursive call: and 1 xjuncts. [2018-04-11 16:19:48,290 INFO L267 ElimStorePlain]: Start of recursive call 2: 2 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-04-11 16:19:48,332 INFO L700 Elim1Store]: detected not equals via solver [2018-04-11 16:19:48,340 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 3 select indices, 3 select index equivalence classes, 1 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 2 case distinctions, treesize of input 141 treesize of output 133 [2018-04-11 16:19:48,342 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 125 treesize of output 93 [2018-04-11 16:19:48,343 INFO L267 ElimStorePlain]: Start of recursive call 6: 1 dim-0 vars, End of recursive call: 1 dim-0 vars, and 1 xjuncts. [2018-04-11 16:19:48,400 INFO L682 Elim1Store]: detected equality via solver [2018-04-11 16:19:48,401 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 2 select indices, 2 select index equivalence classes, 1 disjoint index pairs (out of 1 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 121 treesize of output 113 [2018-04-11 16:19:48,401 INFO L267 ElimStorePlain]: Start of recursive call 7: End of recursive call: and 1 xjuncts. [2018-04-11 16:19:48,456 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 93 treesize of output 84 [2018-04-11 16:19:48,456 INFO L267 ElimStorePlain]: Start of recursive call 8: End of recursive call: and 1 xjuncts. [2018-04-11 16:19:48,511 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 94 treesize of output 70 [2018-04-11 16:19:48,511 INFO L267 ElimStorePlain]: Start of recursive call 9: 1 dim-0 vars, End of recursive call: 1 dim-0 vars, and 1 xjuncts. [2018-04-11 16:19:48,567 INFO L682 Elim1Store]: detected equality via solver [2018-04-11 16:19:48,568 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 2 select indices, 2 select index equivalence classes, 1 disjoint index pairs (out of 1 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 121 treesize of output 93 [2018-04-11 16:19:48,568 INFO L267 ElimStorePlain]: Start of recursive call 10: End of recursive call: and 1 xjuncts. [2018-04-11 16:19:48,623 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 84 treesize of output 75 [2018-04-11 16:19:48,623 INFO L267 ElimStorePlain]: Start of recursive call 11: End of recursive call: and 1 xjuncts. [2018-04-11 16:19:48,674 INFO L682 Elim1Store]: detected equality via solver [2018-04-11 16:19:48,674 INFO L682 Elim1Store]: detected equality via solver [2018-04-11 16:19:48,675 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 3 select indices, 3 select index equivalence classes, 1 disjoint index pairs (out of 3 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 105 treesize of output 99 [2018-04-11 16:19:48,675 INFO L267 ElimStorePlain]: Start of recursive call 12: End of recursive call: and 1 xjuncts. [2018-04-11 16:19:48,735 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 84 treesize of output 71 [2018-04-11 16:19:48,735 INFO L267 ElimStorePlain]: Start of recursive call 13: End of recursive call: and 1 xjuncts. [2018-04-11 16:19:48,780 INFO L267 ElimStorePlain]: Start of recursive call 5: 8 dim-1 vars, End of recursive call: 2 dim-0 vars, and 4 xjuncts. [2018-04-11 16:19:48,878 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 3 select indices, 3 select index equivalence classes, 3 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 1 case distinctions, treesize of input 75 treesize of output 69 [2018-04-11 16:19:48,880 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 65 treesize of output 50 [2018-04-11 16:19:48,880 INFO L267 ElimStorePlain]: Start of recursive call 15: End of recursive call: and 1 xjuncts. [2018-04-11 16:19:48,899 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 50 treesize of output 39 [2018-04-11 16:19:48,900 INFO L267 ElimStorePlain]: Start of recursive call 16: End of recursive call: and 1 xjuncts. [2018-04-11 16:19:48,921 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 39 treesize of output 32 [2018-04-11 16:19:48,921 INFO L267 ElimStorePlain]: Start of recursive call 17: End of recursive call: and 1 xjuncts. [2018-04-11 16:19:48,939 INFO L682 Elim1Store]: detected equality via solver [2018-04-11 16:19:48,940 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 61 treesize of output 44 [2018-04-11 16:19:48,940 INFO L267 ElimStorePlain]: Start of recursive call 18: End of recursive call: and 1 xjuncts. [2018-04-11 16:19:48,957 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 37 treesize of output 28 [2018-04-11 16:19:48,957 INFO L267 ElimStorePlain]: Start of recursive call 19: End of recursive call: and 1 xjuncts. [2018-04-11 16:19:48,966 INFO L267 ElimStorePlain]: Start of recursive call 14: 5 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-04-11 16:19:48,971 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 3 select indices, 3 select index equivalence classes, 4 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 1 case distinctions, treesize of input 71 treesize of output 67 [2018-04-11 16:19:48,973 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 63 treesize of output 54 [2018-04-11 16:19:48,973 INFO L267 ElimStorePlain]: Start of recursive call 21: End of recursive call: and 1 xjuncts. [2018-04-11 16:19:48,995 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 54 treesize of output 41 [2018-04-11 16:19:48,996 INFO L267 ElimStorePlain]: Start of recursive call 22: End of recursive call: and 1 xjuncts. [2018-04-11 16:19:49,015 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 41 treesize of output 36 [2018-04-11 16:19:49,015 INFO L267 ElimStorePlain]: Start of recursive call 23: End of recursive call: and 1 xjuncts. [2018-04-11 16:19:49,035 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 59 treesize of output 50 [2018-04-11 16:19:49,035 INFO L267 ElimStorePlain]: Start of recursive call 24: End of recursive call: and 1 xjuncts. [2018-04-11 16:19:49,054 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 50 treesize of output 35 [2018-04-11 16:19:49,054 INFO L267 ElimStorePlain]: Start of recursive call 25: End of recursive call: and 1 xjuncts. [2018-04-11 16:19:49,065 INFO L267 ElimStorePlain]: Start of recursive call 20: 5 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-04-11 16:19:49,072 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 3 select indices, 3 select index equivalence classes, 1 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 2 case distinctions, treesize of input 66 treesize of output 70 [2018-04-11 16:19:49,074 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 58 treesize of output 43 [2018-04-11 16:19:49,075 INFO L267 ElimStorePlain]: Start of recursive call 27: End of recursive call: and 1 xjuncts. [2018-04-11 16:19:49,114 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 41 treesize of output 28 [2018-04-11 16:19:49,114 INFO L267 ElimStorePlain]: Start of recursive call 28: End of recursive call: and 1 xjuncts. [2018-04-11 16:19:49,151 INFO L267 ElimStorePlain]: Start of recursive call 26: 8 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-04-11 16:19:49,158 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 3 select indices, 3 select index equivalence classes, 3 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 2 case distinctions, treesize of input 70 treesize of output 74 [2018-04-11 16:19:49,161 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 62 treesize of output 44 [2018-04-11 16:19:49,161 INFO L267 ElimStorePlain]: Start of recursive call 30: End of recursive call: and 1 xjuncts. [2018-04-11 16:19:49,209 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 62 treesize of output 53 [2018-04-11 16:19:49,209 INFO L267 ElimStorePlain]: Start of recursive call 31: End of recursive call: and 1 xjuncts. [2018-04-11 16:19:49,269 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 66 treesize of output 55 [2018-04-11 16:19:49,269 INFO L267 ElimStorePlain]: Start of recursive call 32: End of recursive call: and 1 xjuncts. [2018-04-11 16:19:49,315 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 55 treesize of output 46 [2018-04-11 16:19:49,315 INFO L267 ElimStorePlain]: Start of recursive call 33: End of recursive call: and 1 xjuncts. [2018-04-11 16:19:49,360 INFO L682 Elim1Store]: detected equality via solver [2018-04-11 16:19:49,361 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 3 select indices, 3 select index equivalence classes, 0 disjoint index pairs (out of 3 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 53 treesize of output 36 [2018-04-11 16:19:49,361 INFO L267 ElimStorePlain]: Start of recursive call 34: End of recursive call: and 1 xjuncts. [2018-04-11 16:19:49,393 INFO L267 ElimStorePlain]: Start of recursive call 29: 8 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-04-11 16:19:49,449 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 50 treesize of output 46 [2018-04-11 16:19:49,450 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 11 treesize of output 3 [2018-04-11 16:19:49,450 INFO L267 ElimStorePlain]: Start of recursive call 36: End of recursive call: and 1 xjuncts. [2018-04-11 16:19:49,456 INFO L267 ElimStorePlain]: Start of recursive call 35: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-04-11 16:19:49,506 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 2 select indices, 2 select index equivalence classes, 1 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 39 treesize of output 33 [2018-04-11 16:19:49,507 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 11 treesize of output 3 [2018-04-11 16:19:49,507 INFO L267 ElimStorePlain]: Start of recursive call 38: End of recursive call: and 1 xjuncts. [2018-04-11 16:19:49,511 INFO L267 ElimStorePlain]: Start of recursive call 37: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-04-11 16:19:49,562 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 113 treesize of output 107 [2018-04-11 16:19:49,564 INFO L682 Elim1Store]: detected equality via solver [2018-04-11 16:19:49,564 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 2 select indices, 2 select index equivalence classes, 1 disjoint index pairs (out of 1 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 99 treesize of output 85 [2018-04-11 16:19:49,564 INFO L267 ElimStorePlain]: Start of recursive call 40: End of recursive call: and 1 xjuncts. [2018-04-11 16:19:49,587 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 103 treesize of output 88 [2018-04-11 16:19:49,587 INFO L267 ElimStorePlain]: Start of recursive call 41: End of recursive call: and 1 xjuncts. [2018-04-11 16:19:49,611 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 88 treesize of output 71 [2018-04-11 16:19:49,611 INFO L267 ElimStorePlain]: Start of recursive call 42: End of recursive call: and 1 xjuncts. [2018-04-11 16:19:49,634 INFO L267 ElimStorePlain]: Start of recursive call 39: 3 dim-1 vars, End of recursive call: and 2 xjuncts. [2018-04-11 16:19:49,701 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 3 select indices, 3 select index equivalence classes, 1 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 2 case distinctions, treesize of input 70 treesize of output 70 [2018-04-11 16:19:49,703 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 62 treesize of output 45 [2018-04-11 16:19:49,703 INFO L267 ElimStorePlain]: Start of recursive call 44: End of recursive call: and 1 xjuncts. [2018-04-11 16:19:49,745 INFO L682 Elim1Store]: detected equality via solver [2018-04-11 16:19:49,746 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 53 treesize of output 43 [2018-04-11 16:19:49,746 INFO L267 ElimStorePlain]: Start of recursive call 45: End of recursive call: and 1 xjuncts. [2018-04-11 16:19:49,780 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 45 treesize of output 36 [2018-04-11 16:19:49,781 INFO L267 ElimStorePlain]: Start of recursive call 46: End of recursive call: and 1 xjuncts. [2018-04-11 16:19:49,822 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 36 treesize of output 27 [2018-04-11 16:19:49,822 INFO L267 ElimStorePlain]: Start of recursive call 47: End of recursive call: and 1 xjuncts. [2018-04-11 16:19:49,848 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 32 treesize of output 23 [2018-04-11 16:19:49,849 INFO L267 ElimStorePlain]: Start of recursive call 48: End of recursive call: and 1 xjuncts. [2018-04-11 16:19:49,870 INFO L267 ElimStorePlain]: Start of recursive call 43: 8 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-04-11 16:19:49,875 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 3 select indices, 3 select index equivalence classes, 2 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 1 case distinctions, treesize of input 71 treesize of output 63 [2018-04-11 16:19:49,877 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 59 treesize of output 46 [2018-04-11 16:19:49,877 INFO L267 ElimStorePlain]: Start of recursive call 50: End of recursive call: and 1 xjuncts. [2018-04-11 16:19:49,895 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 46 treesize of output 35 [2018-04-11 16:19:49,895 INFO L267 ElimStorePlain]: Start of recursive call 51: End of recursive call: and 1 xjuncts. [2018-04-11 16:19:49,911 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 35 treesize of output 28 [2018-04-11 16:19:49,911 INFO L267 ElimStorePlain]: Start of recursive call 52: End of recursive call: and 1 xjuncts. [2018-04-11 16:19:49,925 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 42 treesize of output 31 [2018-04-11 16:19:49,926 INFO L267 ElimStorePlain]: Start of recursive call 53: End of recursive call: and 1 xjuncts. [2018-04-11 16:19:49,940 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 31 treesize of output 24 [2018-04-11 16:19:49,941 INFO L267 ElimStorePlain]: Start of recursive call 54: End of recursive call: and 1 xjuncts. [2018-04-11 16:19:49,949 INFO L267 ElimStorePlain]: Start of recursive call 49: 5 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-04-11 16:19:49,994 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 2 select indices, 2 select index equivalence classes, 2 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 44 treesize of output 38 [2018-04-11 16:19:49,995 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 11 treesize of output 3 [2018-04-11 16:19:49,995 INFO L267 ElimStorePlain]: Start of recursive call 56: End of recursive call: and 1 xjuncts. [2018-04-11 16:19:50,001 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 8 treesize of output 4 [2018-04-11 16:19:50,001 INFO L267 ElimStorePlain]: Start of recursive call 57: End of recursive call: and 1 xjuncts. [2018-04-11 16:19:50,005 INFO L267 ElimStorePlain]: Start of recursive call 55: 2 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-04-11 16:19:50,047 INFO L267 ElimStorePlain]: Start of recursive call 1: 14 dim-0 vars, 8 dim-2 vars, End of recursive call: 8 dim-0 vars, and 6 xjuncts. [2018-04-11 16:19:50,047 INFO L202 ElimStorePlain]: Needed 57 recursive calls to eliminate 22 variables, input treesize:387, output treesize:107 [2018-04-11 16:19:50,179 INFO L134 CoverageAnalysis]: Checked inductivity of 48 backedges. 0 proven. 48 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-04-11 16:19:50,179 INFO L320 seRefinementStrategy]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2018-04-11 16:19:50,180 INFO L335 seRefinementStrategy]: Number of different interpolants: perfect sequences [] imperfect sequences [24] total 24 [2018-04-11 16:19:50,180 INFO L442 AbstractCegarLoop]: Interpolant automaton has 25 states [2018-04-11 16:19:50,180 INFO L132 InterpolantAutomaton]: Constructing interpolant automaton starting with 25 interpolants. [2018-04-11 16:19:50,180 INFO L133 InterpolantAutomaton]: CoverageRelationStatistics Valid=55, Invalid=542, Unknown=3, NotChecked=0, Total=600 [2018-04-11 16:19:50,180 INFO L87 Difference]: Start difference. First operand 176 states and 191 transitions. Second operand 25 states. [2018-04-11 16:19:51,420 WARN L151 SmtUtils]: Spent 111ms on a formula simplification. DAG size of input: 124 DAG size of output 112 [2018-04-11 16:19:51,615 WARN L151 SmtUtils]: Spent 131ms on a formula simplification. DAG size of input: 174 DAG size of output 114 [2018-04-11 16:19:51,860 WARN L151 SmtUtils]: Spent 125ms on a formula simplification. DAG size of input: 176 DAG size of output 117 [2018-04-11 16:19:52,115 WARN L151 SmtUtils]: Spent 151ms on a formula simplification. DAG size of input: 197 DAG size of output 126 [2018-04-11 16:19:52,309 WARN L151 SmtUtils]: Spent 105ms on a formula simplification. DAG size of input: 122 DAG size of output 106 [2018-04-11 16:19:52,576 WARN L151 SmtUtils]: Spent 121ms on a formula simplification. DAG size of input: 187 DAG size of output 116 [2018-04-11 16:19:52,727 WARN L151 SmtUtils]: Spent 102ms on a formula simplification. DAG size of input: 111 DAG size of output 111 [2018-04-11 16:19:53,143 WARN L151 SmtUtils]: Spent 283ms on a formula simplification. DAG size of input: 174 DAG size of output 152 [2018-04-11 16:19:53,317 WARN L151 SmtUtils]: Spent 110ms on a formula simplification. DAG size of input: 115 DAG size of output 103 [2018-04-11 16:19:53,373 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-04-11 16:19:53,374 INFO L93 Difference]: Finished difference Result 231 states and 246 transitions. [2018-04-11 16:19:53,374 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 30 states. [2018-04-11 16:19:53,374 INFO L78 Accepts]: Start accepts. Automaton has 25 states. Word has length 58 [2018-04-11 16:19:53,374 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-04-11 16:19:53,375 INFO L225 Difference]: With dead ends: 231 [2018-04-11 16:19:53,375 INFO L226 Difference]: Without dead ends: 231 [2018-04-11 16:19:53,376 INFO L567 BasicCegarLoop]: 0 DeclaredPredicates, 83 GetRequests, 32 SyntacticMatches, 2 SemanticMatches, 49 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 446 ImplicationChecksByTransitivity, 3.0s TimeCoverageRelationStatistics Valid=300, Invalid=2245, Unknown=5, NotChecked=0, Total=2550 [2018-04-11 16:19:53,376 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 231 states. [2018-04-11 16:19:53,378 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 231 to 175. [2018-04-11 16:19:53,378 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 175 states. [2018-04-11 16:19:53,378 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 175 states to 175 states and 189 transitions. [2018-04-11 16:19:53,379 INFO L78 Accepts]: Start accepts. Automaton has 175 states and 189 transitions. Word has length 58 [2018-04-11 16:19:53,379 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-04-11 16:19:53,379 INFO L459 AbstractCegarLoop]: Abstraction has 175 states and 189 transitions. [2018-04-11 16:19:53,379 INFO L460 AbstractCegarLoop]: Interpolant automaton has 25 states. [2018-04-11 16:19:53,379 INFO L276 IsEmpty]: Start isEmpty. Operand 175 states and 189 transitions. [2018-04-11 16:19:53,379 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 60 [2018-04-11 16:19:53,379 INFO L347 BasicCegarLoop]: Found error trace [2018-04-11 16:19:53,380 INFO L355 BasicCegarLoop]: trace histogram [3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-04-11 16:19:53,380 INFO L408 AbstractCegarLoop]: === Iteration 24 === [mainErr5RequiresViolation, mainErr13RequiresViolation, mainErr1RequiresViolation, mainErr9RequiresViolation, mainErr0RequiresViolation, mainErr18EnsuresViolationMEMORY_LEAK, mainErr17AssertViolationMEMORY_FREE, mainErr3RequiresViolation, mainErr7RequiresViolation, mainErr11RequiresViolation, mainErr8RequiresViolation, mainErr10RequiresViolation, mainErr15RequiresViolation, mainErr2RequiresViolation, mainErr4RequiresViolation, mainErr12RequiresViolation, mainErr6RequiresViolation, mainErr16AssertViolationMEMORY_FREE, mainErr14RequiresViolation]=== [2018-04-11 16:19:53,380 INFO L82 PathProgramCache]: Analyzing trace with hash 882457828, now seen corresponding path program 3 times [2018-04-11 16:19:53,380 INFO L213 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS_NO_ARRAY [2018-04-11 16:19:53,380 INFO L68 tionRefinementEngine]: Using refinement strategy SmtInterpolRefinementStrategy [2018-04-11 16:19:53,380 INFO L119 rtionOrderModulation]: Craig nested/tree interpolation forces the following order [2018-04-11 16:19:53,381 INFO L101 rtionOrderModulation]: Changing assertion order to NOT_INCREMENTALLY [2018-04-11 16:19:53,381 INFO L119 rtionOrderModulation]: Craig nested/tree interpolation forces the following order [2018-04-11 16:19:53,388 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-04-11 16:19:53,389 WARN L137 erpolLogProxyWrapper]: Using partial proofs (cut at CNF-level). Set option :produce-proofs to true to get complete proofs. [2018-04-11 16:19:53,401 INFO L431 seRefinementStrategy]: Interpolation failed due to KNOWN_IGNORE: Unknown lemma type! [2018-04-11 16:19:53,401 INFO L308 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2018-04-11 16:19:53,401 INFO L213 ckRefinementStrategy]: Switched to mode SMTINTERPOL_FP [2018-04-11 16:19:53,402 INFO L103 rtionOrderModulation]: Keeping assertion order OUTSIDE_LOOP_FIRST2 [2018-04-11 16:19:53,435 INFO L242 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST2 issued 3 check-sat command(s) [2018-04-11 16:19:53,436 INFO L243 tOrderPrioritization]: Conjunction of SSA is unsat [2018-04-11 16:19:53,439 INFO L270 TraceCheckSpWp]: Computing forward predicates... [2018-04-11 16:19:53,441 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 6 treesize of output 5 [2018-04-11 16:19:53,441 INFO L267 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2018-04-11 16:19:53,444 INFO L267 ElimStorePlain]: Start of recursive call 1: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-04-11 16:19:53,444 INFO L202 ElimStorePlain]: Needed 2 recursive calls to eliminate 1 variables, input treesize:10, output treesize:9 [2018-04-11 16:19:53,463 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 11 treesize of output 3 [2018-04-11 16:19:53,464 INFO L267 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2018-04-11 16:19:53,468 INFO L267 ElimStorePlain]: Start of recursive call 1: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-04-11 16:19:53,468 INFO L202 ElimStorePlain]: Needed 2 recursive calls to eliminate 1 variables, input treesize:23, output treesize:10 [2018-04-11 16:19:53,508 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 48 treesize of output 45 [2018-04-11 16:19:53,510 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 10 treesize of output 9 [2018-04-11 16:19:53,510 INFO L267 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 1 xjuncts. [2018-04-11 16:19:53,518 INFO L267 ElimStorePlain]: Start of recursive call 2: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-04-11 16:19:53,546 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 48 treesize of output 45 [2018-04-11 16:19:53,548 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 10 treesize of output 9 [2018-04-11 16:19:53,548 INFO L267 ElimStorePlain]: Start of recursive call 5: End of recursive call: and 1 xjuncts. [2018-04-11 16:19:53,556 INFO L267 ElimStorePlain]: Start of recursive call 4: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-04-11 16:19:53,590 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 44 treesize of output 41 [2018-04-11 16:19:53,593 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 10 treesize of output 9 [2018-04-11 16:19:53,593 INFO L267 ElimStorePlain]: Start of recursive call 7: End of recursive call: and 1 xjuncts. [2018-04-11 16:19:53,602 INFO L267 ElimStorePlain]: Start of recursive call 6: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-04-11 16:19:53,632 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 44 treesize of output 41 [2018-04-11 16:19:53,633 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 10 treesize of output 9 [2018-04-11 16:19:53,634 INFO L267 ElimStorePlain]: Start of recursive call 9: End of recursive call: and 1 xjuncts. [2018-04-11 16:19:53,641 INFO L267 ElimStorePlain]: Start of recursive call 8: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-04-11 16:19:53,660 INFO L267 ElimStorePlain]: Start of recursive call 1: 4 dim-0 vars, 4 dim-2 vars, End of recursive call: and 2 xjuncts. [2018-04-11 16:19:53,660 INFO L202 ElimStorePlain]: Needed 9 recursive calls to eliminate 8 variables, input treesize:97, output treesize:69 [2018-04-11 16:19:53,788 INFO L700 Elim1Store]: detected not equals via solver [2018-04-11 16:19:53,789 INFO L700 Elim1Store]: detected not equals via solver [2018-04-11 16:19:53,790 INFO L700 Elim1Store]: detected not equals via solver [2018-04-11 16:19:53,790 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 3 select indices, 3 select index equivalence classes, 3 disjoint index pairs (out of 3 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 22 treesize of output 33 [2018-04-11 16:19:53,791 INFO L267 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2018-04-11 16:19:53,803 INFO L267 ElimStorePlain]: Start of recursive call 1: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-04-11 16:19:53,803 INFO L202 ElimStorePlain]: Needed 2 recursive calls to eliminate 1 variables, input treesize:59, output treesize:61 [2018-04-11 16:19:53,907 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 2 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 3 case distinctions, treesize of input 24 treesize of output 36 [2018-04-11 16:19:53,909 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 3 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 25 treesize of output 24 [2018-04-11 16:19:53,910 INFO L267 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 1 xjuncts. [2018-04-11 16:19:53,926 INFO L267 ElimStorePlain]: Start of recursive call 2: 2 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-04-11 16:19:53,953 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 2 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 3 case distinctions, treesize of input 32 treesize of output 42 [2018-04-11 16:19:53,956 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 33 treesize of output 32 [2018-04-11 16:19:53,956 INFO L267 ElimStorePlain]: Start of recursive call 5: End of recursive call: and 1 xjuncts. [2018-04-11 16:19:53,985 INFO L267 ElimStorePlain]: Start of recursive call 4: 2 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-04-11 16:19:54,000 INFO L267 ElimStorePlain]: Start of recursive call 1: 1 dim-0 vars, 2 dim-2 vars, End of recursive call: and 1 xjuncts. [2018-04-11 16:19:54,000 INFO L202 ElimStorePlain]: Needed 5 recursive calls to eliminate 3 variables, input treesize:88, output treesize:95 [2018-04-11 16:19:54,037 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 2 select indices, 2 select index equivalence classes, 1 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 37 treesize of output 37 [2018-04-11 16:19:54,040 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 33 treesize of output 25 [2018-04-11 16:19:54,040 INFO L267 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 1 xjuncts. [2018-04-11 16:19:54,051 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 22 treesize of output 11 [2018-04-11 16:19:54,052 INFO L267 ElimStorePlain]: Start of recursive call 4: End of recursive call: and 1 xjuncts. [2018-04-11 16:19:54,061 INFO L682 Elim1Store]: detected equality via solver [2018-04-11 16:19:54,061 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 22 treesize of output 14 [2018-04-11 16:19:54,062 INFO L267 ElimStorePlain]: Start of recursive call 5: End of recursive call: and 1 xjuncts. [2018-04-11 16:19:54,066 INFO L267 ElimStorePlain]: Start of recursive call 2: 3 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-04-11 16:19:54,088 INFO L267 ElimStorePlain]: Start of recursive call 1: 2 dim-0 vars, 1 dim-2 vars, End of recursive call: 2 dim-0 vars, and 1 xjuncts. [2018-04-11 16:19:54,089 INFO L202 ElimStorePlain]: Needed 5 recursive calls to eliminate 3 variables, input treesize:113, output treesize:83 [2018-04-11 16:19:54,143 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 4 select indices, 4 select index equivalence classes, 3 disjoint index pairs (out of 6 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 27 treesize of output 18 [2018-04-11 16:19:54,143 INFO L267 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2018-04-11 16:19:54,155 INFO L267 ElimStorePlain]: Start of recursive call 1: 2 dim-0 vars, 1 dim-1 vars, End of recursive call: 2 dim-0 vars, and 1 xjuncts. [2018-04-11 16:19:54,156 INFO L202 ElimStorePlain]: Needed 2 recursive calls to eliminate 3 variables, input treesize:91, output treesize:56 [2018-04-11 16:19:54,207 INFO L700 Elim1Store]: detected not equals via solver [2018-04-11 16:19:54,209 INFO L700 Elim1Store]: detected not equals via solver [2018-04-11 16:19:54,211 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 3 select indices, 3 select index equivalence classes, 5 disjoint index pairs (out of 3 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 66 treesize of output 82 [2018-04-11 16:19:54,213 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 39 treesize of output 44 [2018-04-11 16:19:54,213 INFO L267 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 1 xjuncts. [2018-04-11 16:19:54,221 INFO L267 ElimStorePlain]: Start of recursive call 2: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-04-11 16:19:54,228 INFO L267 ElimStorePlain]: Start of recursive call 1: 3 dim-0 vars, 1 dim-2 vars, End of recursive call: 3 dim-0 vars, and 1 xjuncts. [2018-04-11 16:19:54,228 INFO L202 ElimStorePlain]: Needed 3 recursive calls to eliminate 4 variables, input treesize:78, output treesize:48 [2018-04-11 16:19:54,270 INFO L700 Elim1Store]: detected not equals via solver [2018-04-11 16:19:54,271 INFO L700 Elim1Store]: detected not equals via solver [2018-04-11 16:19:54,272 INFO L700 Elim1Store]: detected not equals via solver [2018-04-11 16:19:54,273 INFO L700 Elim1Store]: detected not equals via solver [2018-04-11 16:19:54,276 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 3 select indices, 3 select index equivalence classes, 5 disjoint index pairs (out of 3 index pairs), introduced 4 new quantified variables, introduced 1 case distinctions, treesize of input 41 treesize of output 66 [2018-04-11 16:19:54,289 INFO L477 Elim1Store]: Elim1 applied some preprocessing eliminated variable of array dimension 1, 0 stores, 3 select indices, 3 select index equivalence classes, 2 disjoint index pairs (out of 3 index pairs), introduced 4 new quantified variables, introduced 3 case distinctions, treesize of input 55 treesize of output 80 [2018-04-11 16:19:54,291 INFO L267 ElimStorePlain]: Start of recursive call 3: 10 dim-0 vars, End of recursive call: 10 dim-0 vars, and 7 xjuncts. [2018-04-11 16:19:54,317 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 35 treesize of output 28 [2018-04-11 16:19:54,317 INFO L267 ElimStorePlain]: Start of recursive call 4: End of recursive call: and 1 xjuncts. [2018-04-11 16:19:54,328 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 40 treesize of output 33 [2018-04-11 16:19:54,328 INFO L267 ElimStorePlain]: Start of recursive call 5: End of recursive call: and 1 xjuncts. [2018-04-11 16:19:54,338 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 3 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 33 treesize of output 21 [2018-04-11 16:19:54,338 INFO L267 ElimStorePlain]: Start of recursive call 6: End of recursive call: and 1 xjuncts. [2018-04-11 16:19:54,344 INFO L682 Elim1Store]: detected equality via solver [2018-04-11 16:19:54,345 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 2 select indices, 2 select index equivalence classes, 2 disjoint index pairs (out of 1 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 20 treesize of output 14 [2018-04-11 16:19:54,345 INFO L267 ElimStorePlain]: Start of recursive call 7: End of recursive call: and 1 xjuncts. [2018-04-11 16:19:54,349 INFO L267 ElimStorePlain]: Start of recursive call 2: 5 dim-1 vars, End of recursive call: and 2 xjuncts. [2018-04-11 16:19:54,355 INFO L267 ElimStorePlain]: Start of recursive call 1: 4 dim-0 vars, 1 dim-2 vars, End of recursive call: and 1 xjuncts. [2018-04-11 16:19:54,356 INFO L202 ElimStorePlain]: Needed 7 recursive calls to eliminate 5 variables, input treesize:50, output treesize:4 [2018-04-11 16:19:54,392 INFO L134 CoverageAnalysis]: Checked inductivity of 23 backedges. 0 proven. 21 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2018-04-11 16:19:54,393 INFO L320 seRefinementStrategy]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2018-04-11 16:19:54,393 INFO L335 seRefinementStrategy]: Number of different interpolants: perfect sequences [] imperfect sequences [24] total 24 [2018-04-11 16:19:54,393 INFO L442 AbstractCegarLoop]: Interpolant automaton has 24 states [2018-04-11 16:19:54,393 INFO L132 InterpolantAutomaton]: Constructing interpolant automaton starting with 24 interpolants. [2018-04-11 16:19:54,393 INFO L133 InterpolantAutomaton]: CoverageRelationStatistics Valid=76, Invalid=476, Unknown=0, NotChecked=0, Total=552 [2018-04-11 16:19:54,393 INFO L87 Difference]: Start difference. First operand 175 states and 189 transitions. Second operand 24 states. [2018-04-11 16:19:56,018 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-04-11 16:19:56,018 INFO L93 Difference]: Finished difference Result 188 states and 199 transitions. [2018-04-11 16:19:56,018 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 35 states. [2018-04-11 16:19:56,018 INFO L78 Accepts]: Start accepts. Automaton has 24 states. Word has length 59 [2018-04-11 16:19:56,018 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-04-11 16:19:56,019 INFO L225 Difference]: With dead ends: 188 [2018-04-11 16:19:56,019 INFO L226 Difference]: Without dead ends: 188 [2018-04-11 16:19:56,019 INFO L567 BasicCegarLoop]: 0 DeclaredPredicates, 89 GetRequests, 36 SyntacticMatches, 0 SemanticMatches, 53 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 659 ImplicationChecksByTransitivity, 1.6s TimeCoverageRelationStatistics Valid=501, Invalid=2469, Unknown=0, NotChecked=0, Total=2970 [2018-04-11 16:19:56,020 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 188 states. [2018-04-11 16:19:56,021 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 188 to 164. [2018-04-11 16:19:56,021 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 164 states. [2018-04-11 16:19:56,021 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 164 states to 164 states and 175 transitions. [2018-04-11 16:19:56,021 INFO L78 Accepts]: Start accepts. Automaton has 164 states and 175 transitions. Word has length 59 [2018-04-11 16:19:56,022 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-04-11 16:19:56,022 INFO L459 AbstractCegarLoop]: Abstraction has 164 states and 175 transitions. [2018-04-11 16:19:56,022 INFO L460 AbstractCegarLoop]: Interpolant automaton has 24 states. [2018-04-11 16:19:56,022 INFO L276 IsEmpty]: Start isEmpty. Operand 164 states and 175 transitions. [2018-04-11 16:19:56,022 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 60 [2018-04-11 16:19:56,022 INFO L347 BasicCegarLoop]: Found error trace [2018-04-11 16:19:56,022 INFO L355 BasicCegarLoop]: trace histogram [4, 4, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-04-11 16:19:56,023 INFO L408 AbstractCegarLoop]: === Iteration 25 === [mainErr5RequiresViolation, mainErr13RequiresViolation, mainErr1RequiresViolation, mainErr9RequiresViolation, mainErr0RequiresViolation, mainErr18EnsuresViolationMEMORY_LEAK, mainErr17AssertViolationMEMORY_FREE, mainErr3RequiresViolation, mainErr7RequiresViolation, mainErr11RequiresViolation, mainErr8RequiresViolation, mainErr10RequiresViolation, mainErr15RequiresViolation, mainErr2RequiresViolation, mainErr4RequiresViolation, mainErr12RequiresViolation, mainErr6RequiresViolation, mainErr16AssertViolationMEMORY_FREE, mainErr14RequiresViolation]=== [2018-04-11 16:19:56,023 INFO L82 PathProgramCache]: Analyzing trace with hash 800900251, now seen corresponding path program 6 times [2018-04-11 16:19:56,023 INFO L213 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS_NO_ARRAY [2018-04-11 16:19:56,023 INFO L68 tionRefinementEngine]: Using refinement strategy SmtInterpolRefinementStrategy [2018-04-11 16:19:56,023 INFO L119 rtionOrderModulation]: Craig nested/tree interpolation forces the following order [2018-04-11 16:19:56,023 INFO L101 rtionOrderModulation]: Changing assertion order to NOT_INCREMENTALLY [2018-04-11 16:19:56,023 INFO L119 rtionOrderModulation]: Craig nested/tree interpolation forces the following order [2018-04-11 16:19:56,032 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-04-11 16:19:56,033 WARN L137 erpolLogProxyWrapper]: Using partial proofs (cut at CNF-level). Set option :produce-proofs to true to get complete proofs. [2018-04-11 16:19:56,071 INFO L431 seRefinementStrategy]: Interpolation failed due to KNOWN_IGNORE: Unknown lemma type! [2018-04-11 16:19:56,071 INFO L308 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2018-04-11 16:19:56,071 INFO L213 ckRefinementStrategy]: Switched to mode SMTINTERPOL_FP [2018-04-11 16:19:56,072 INFO L103 rtionOrderModulation]: Keeping assertion order MIX_INSIDE_OUTSIDE [2018-04-11 16:19:56,097 INFO L242 tOrderPrioritization]: Assert order MIX_INSIDE_OUTSIDE issued 4 check-sat command(s) [2018-04-11 16:19:56,097 INFO L243 tOrderPrioritization]: Conjunction of SSA is unsat [2018-04-11 16:19:56,100 INFO L270 TraceCheckSpWp]: Computing forward predicates... [2018-04-11 16:19:56,102 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 6 treesize of output 5 [2018-04-11 16:19:56,102 INFO L267 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2018-04-11 16:19:56,104 INFO L267 ElimStorePlain]: Start of recursive call 1: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-04-11 16:19:56,104 INFO L202 ElimStorePlain]: Needed 2 recursive calls to eliminate 1 variables, input treesize:10, output treesize:9 [2018-04-11 16:19:56,130 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 6 treesize of output 5 [2018-04-11 16:19:56,131 INFO L267 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2018-04-11 16:19:56,142 INFO L700 Elim1Store]: detected not equals via solver [2018-04-11 16:19:56,142 INFO L700 Elim1Store]: detected not equals via solver [2018-04-11 16:19:56,143 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 2 select indices, 2 select index equivalence classes, 2 disjoint index pairs (out of 1 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 17 treesize of output 24 [2018-04-11 16:19:56,143 INFO L267 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 1 xjuncts. [2018-04-11 16:19:56,152 INFO L267 ElimStorePlain]: Start of recursive call 1: 2 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-04-11 16:19:56,152 INFO L202 ElimStorePlain]: Needed 3 recursive calls to eliminate 2 variables, input treesize:38, output treesize:35 [2018-04-11 16:19:56,203 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 13 treesize of output 10 [2018-04-11 16:19:56,205 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 10 treesize of output 9 [2018-04-11 16:19:56,206 INFO L267 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 1 xjuncts. [2018-04-11 16:19:56,208 INFO L267 ElimStorePlain]: Start of recursive call 2: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-04-11 16:19:56,228 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 13 treesize of output 10 [2018-04-11 16:19:56,229 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 10 treesize of output 9 [2018-04-11 16:19:56,230 INFO L267 ElimStorePlain]: Start of recursive call 5: End of recursive call: and 1 xjuncts. [2018-04-11 16:19:56,232 INFO L267 ElimStorePlain]: Start of recursive call 4: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-04-11 16:19:56,248 INFO L267 ElimStorePlain]: Start of recursive call 1: 2 dim-0 vars, 2 dim-2 vars, End of recursive call: and 1 xjuncts. [2018-04-11 16:19:56,249 INFO L202 ElimStorePlain]: Needed 5 recursive calls to eliminate 4 variables, input treesize:61, output treesize:59 [2018-04-11 16:19:56,341 INFO L700 Elim1Store]: detected not equals via solver [2018-04-11 16:19:56,342 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 1 select indices, 1 select index equivalence classes, 2 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 18 treesize of output 27 [2018-04-11 16:19:56,342 INFO L267 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2018-04-11 16:19:56,368 INFO L700 Elim1Store]: detected not equals via solver [2018-04-11 16:19:56,369 INFO L700 Elim1Store]: detected not equals via solver [2018-04-11 16:19:56,370 INFO L700 Elim1Store]: detected not equals via solver [2018-04-11 16:19:56,371 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 3 select indices, 3 select index equivalence classes, 4 disjoint index pairs (out of 3 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 22 treesize of output 32 [2018-04-11 16:19:56,371 INFO L267 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 1 xjuncts. [2018-04-11 16:19:56,395 INFO L267 ElimStorePlain]: Start of recursive call 1: 1 dim-0 vars, 2 dim-1 vars, End of recursive call: 1 dim-0 vars, and 1 xjuncts. [2018-04-11 16:19:56,396 INFO L202 ElimStorePlain]: Needed 3 recursive calls to eliminate 3 variables, input treesize:91, output treesize:83 [2018-04-11 16:19:56,447 INFO L700 Elim1Store]: detected not equals via solver [2018-04-11 16:19:56,451 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 2 disjoint index pairs (out of 1 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 32 treesize of output 39 [2018-04-11 16:19:56,453 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 16 treesize of output 15 [2018-04-11 16:19:56,453 INFO L267 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 1 xjuncts. [2018-04-11 16:19:56,459 INFO L267 ElimStorePlain]: Start of recursive call 2: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-04-11 16:19:56,481 INFO L700 Elim1Store]: detected not equals via solver [2018-04-11 16:19:56,483 INFO L700 Elim1Store]: detected not equals via solver [2018-04-11 16:19:56,484 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 3 disjoint index pairs (out of 1 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 69 treesize of output 81 [2018-04-11 16:19:56,486 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 2 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 22 treesize of output 18 [2018-04-11 16:19:56,486 INFO L267 ElimStorePlain]: Start of recursive call 5: End of recursive call: and 1 xjuncts. [2018-04-11 16:19:56,496 INFO L267 ElimStorePlain]: Start of recursive call 4: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-04-11 16:19:56,513 INFO L267 ElimStorePlain]: Start of recursive call 1: 2 dim-0 vars, 2 dim-2 vars, End of recursive call: 1 dim-0 vars, and 1 xjuncts. [2018-04-11 16:19:56,514 INFO L202 ElimStorePlain]: Needed 5 recursive calls to eliminate 4 variables, input treesize:106, output treesize:103 [2018-04-11 16:19:56,604 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 5 treesize of output 1 [2018-04-11 16:19:56,604 INFO L267 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2018-04-11 16:19:56,618 INFO L267 ElimStorePlain]: Start of recursive call 1: 2 dim-0 vars, 1 dim-1 vars, End of recursive call: 2 dim-0 vars, and 1 xjuncts. [2018-04-11 16:19:56,619 INFO L202 ElimStorePlain]: Needed 2 recursive calls to eliminate 3 variables, input treesize:150, output treesize:142 [2018-04-11 16:19:56,622 INFO L700 Elim1Store]: detected not equals via solver [2018-04-11 16:19:56,625 INFO L700 Elim1Store]: detected not equals via solver [2018-04-11 16:19:56,628 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 3 select indices, 3 select index equivalence classes, 4 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 0 case distinctions, treesize of input 180 treesize of output 159 [2018-04-11 16:19:56,629 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 34 treesize of output 33 [2018-04-11 16:19:56,629 INFO L267 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 1 xjuncts. [2018-04-11 16:19:56,641 INFO L267 ElimStorePlain]: Start of recursive call 2: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-04-11 16:19:56,658 INFO L700 Elim1Store]: detected not equals via solver [2018-04-11 16:19:56,663 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 3 select indices, 3 select index equivalence classes, 3 disjoint index pairs (out of 3 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 116 treesize of output 149 [2018-04-11 16:19:56,664 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 34 treesize of output 33 [2018-04-11 16:19:56,665 INFO L267 ElimStorePlain]: Start of recursive call 5: End of recursive call: and 1 xjuncts. [2018-04-11 16:19:56,673 INFO L267 ElimStorePlain]: Start of recursive call 4: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-04-11 16:19:56,688 INFO L267 ElimStorePlain]: Start of recursive call 1: 2 dim-0 vars, 2 dim-2 vars, End of recursive call: 2 dim-0 vars, and 1 xjuncts. [2018-04-11 16:19:56,689 INFO L202 ElimStorePlain]: Needed 5 recursive calls to eliminate 4 variables, input treesize:210, output treesize:178 [2018-04-11 16:19:56,867 INFO L700 Elim1Store]: detected not equals via solver [2018-04-11 16:19:56,868 INFO L682 Elim1Store]: detected equality via solver [2018-04-11 16:19:56,868 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 3 select indices, 3 select index equivalence classes, 2 disjoint index pairs (out of 3 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 44 treesize of output 41 [2018-04-11 16:19:56,868 INFO L267 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2018-04-11 16:19:56,885 INFO L267 ElimStorePlain]: Start of recursive call 1: 3 dim-0 vars, 1 dim-1 vars, End of recursive call: 3 dim-0 vars, and 1 xjuncts. [2018-04-11 16:19:56,885 INFO L202 ElimStorePlain]: Needed 2 recursive calls to eliminate 4 variables, input treesize:224, output treesize:179 [2018-04-11 16:19:57,073 INFO L700 Elim1Store]: detected not equals via solver [2018-04-11 16:19:57,073 INFO L682 Elim1Store]: detected equality via solver [2018-04-11 16:19:57,073 INFO L682 Elim1Store]: detected equality via solver [2018-04-11 16:19:57,074 INFO L700 Elim1Store]: detected not equals via solver [2018-04-11 16:19:57,077 INFO L700 Elim1Store]: detected not equals via solver [2018-04-11 16:19:57,080 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 5 select indices, 5 select index equivalence classes, 4 disjoint index pairs (out of 10 index pairs), introduced 5 new quantified variables, introduced 0 case distinctions, treesize of input 194 treesize of output 184 [2018-04-11 16:19:57,082 INFO L682 Elim1Store]: detected equality via solver [2018-04-11 16:19:57,082 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 37 treesize of output 33 [2018-04-11 16:19:57,082 INFO L267 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 1 xjuncts. [2018-04-11 16:19:57,096 INFO L682 Elim1Store]: detected equality via solver [2018-04-11 16:19:57,096 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 2 select indices, 2 select index equivalence classes, 2 disjoint index pairs (out of 1 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 71 treesize of output 62 [2018-04-11 16:19:57,097 INFO L267 ElimStorePlain]: Start of recursive call 4: 1 dim-0 vars, End of recursive call: 1 dim-0 vars, and 1 xjuncts. [2018-04-11 16:19:57,106 INFO L682 Elim1Store]: detected equality via solver [2018-04-11 16:19:57,107 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 2 select indices, 2 select index equivalence classes, 2 disjoint index pairs (out of 1 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 66 treesize of output 57 [2018-04-11 16:19:57,107 INFO L267 ElimStorePlain]: Start of recursive call 5: 1 dim-0 vars, End of recursive call: 1 dim-0 vars, and 1 xjuncts. [2018-04-11 16:19:57,115 INFO L267 ElimStorePlain]: Start of recursive call 2: 3 dim-1 vars, End of recursive call: 2 dim-0 vars, and 1 xjuncts. [2018-04-11 16:19:57,132 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 3 select indices, 3 select index equivalence classes, 3 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 0 case distinctions, treesize of input 60 treesize of output 56 [2018-04-11 16:19:57,134 INFO L682 Elim1Store]: detected equality via solver [2018-04-11 16:19:57,134 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 26 treesize of output 23 [2018-04-11 16:19:57,134 INFO L267 ElimStorePlain]: Start of recursive call 7: 1 dim-0 vars, End of recursive call: 1 dim-0 vars, and 1 xjuncts. [2018-04-11 16:19:57,146 INFO L682 Elim1Store]: detected equality via solver [2018-04-11 16:19:57,146 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 23 treesize of output 19 [2018-04-11 16:19:57,147 INFO L267 ElimStorePlain]: Start of recursive call 8: End of recursive call: and 1 xjuncts. [2018-04-11 16:19:57,152 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 7 treesize of output 1 [2018-04-11 16:19:57,152 INFO L267 ElimStorePlain]: Start of recursive call 9: End of recursive call: and 1 xjuncts. [2018-04-11 16:19:57,155 INFO L267 ElimStorePlain]: Start of recursive call 6: 3 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-04-11 16:19:57,164 INFO L267 ElimStorePlain]: Start of recursive call 1: 3 dim-0 vars, 2 dim-2 vars, End of recursive call: and 1 xjuncts. [2018-04-11 16:19:57,164 INFO L202 ElimStorePlain]: Needed 9 recursive calls to eliminate 5 variables, input treesize:219, output treesize:7 [2018-04-11 16:19:57,225 INFO L134 CoverageAnalysis]: Checked inductivity of 46 backedges. 3 proven. 43 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-04-11 16:19:57,225 INFO L320 seRefinementStrategy]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2018-04-11 16:19:57,225 INFO L335 seRefinementStrategy]: Number of different interpolants: perfect sequences [] imperfect sequences [25] total 25 [2018-04-11 16:19:57,225 INFO L442 AbstractCegarLoop]: Interpolant automaton has 25 states [2018-04-11 16:19:57,225 INFO L132 InterpolantAutomaton]: Constructing interpolant automaton starting with 25 interpolants. [2018-04-11 16:19:57,226 INFO L133 InterpolantAutomaton]: CoverageRelationStatistics Valid=63, Invalid=537, Unknown=0, NotChecked=0, Total=600 [2018-04-11 16:19:57,226 INFO L87 Difference]: Start difference. First operand 164 states and 175 transitions. Second operand 25 states. [2018-04-11 16:20:02,286 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-04-11 16:20:02,286 INFO L93 Difference]: Finished difference Result 196 states and 207 transitions. [2018-04-11 16:20:02,286 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 31 states. [2018-04-11 16:20:02,286 INFO L78 Accepts]: Start accepts. Automaton has 25 states. Word has length 59 [2018-04-11 16:20:02,287 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-04-11 16:20:02,287 INFO L225 Difference]: With dead ends: 196 [2018-04-11 16:20:02,287 INFO L226 Difference]: Without dead ends: 196 [2018-04-11 16:20:02,288 INFO L567 BasicCegarLoop]: 0 DeclaredPredicates, 84 GetRequests, 33 SyntacticMatches, 2 SemanticMatches, 49 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 499 ImplicationChecksByTransitivity, 3.1s TimeCoverageRelationStatistics Valid=306, Invalid=2244, Unknown=0, NotChecked=0, Total=2550 [2018-04-11 16:20:02,288 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 196 states. [2018-04-11 16:20:02,291 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 196 to 170. [2018-04-11 16:20:02,291 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 170 states. [2018-04-11 16:20:02,291 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 170 states to 170 states and 181 transitions. [2018-04-11 16:20:02,292 INFO L78 Accepts]: Start accepts. Automaton has 170 states and 181 transitions. Word has length 59 [2018-04-11 16:20:02,292 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-04-11 16:20:02,292 INFO L459 AbstractCegarLoop]: Abstraction has 170 states and 181 transitions. [2018-04-11 16:20:02,292 INFO L460 AbstractCegarLoop]: Interpolant automaton has 25 states. [2018-04-11 16:20:02,292 INFO L276 IsEmpty]: Start isEmpty. Operand 170 states and 181 transitions. [2018-04-11 16:20:02,292 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 62 [2018-04-11 16:20:02,292 INFO L347 BasicCegarLoop]: Found error trace [2018-04-11 16:20:02,293 INFO L355 BasicCegarLoop]: trace histogram [3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-04-11 16:20:02,293 INFO L408 AbstractCegarLoop]: === Iteration 26 === [mainErr5RequiresViolation, mainErr13RequiresViolation, mainErr1RequiresViolation, mainErr9RequiresViolation, mainErr0RequiresViolation, mainErr18EnsuresViolationMEMORY_LEAK, mainErr17AssertViolationMEMORY_FREE, mainErr3RequiresViolation, mainErr7RequiresViolation, mainErr11RequiresViolation, mainErr8RequiresViolation, mainErr10RequiresViolation, mainErr15RequiresViolation, mainErr2RequiresViolation, mainErr4RequiresViolation, mainErr12RequiresViolation, mainErr6RequiresViolation, mainErr16AssertViolationMEMORY_FREE, mainErr14RequiresViolation]=== [2018-04-11 16:20:02,293 INFO L82 PathProgramCache]: Analyzing trace with hash 1252474091, now seen corresponding path program 2 times [2018-04-11 16:20:02,293 INFO L213 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS_NO_ARRAY [2018-04-11 16:20:02,293 INFO L68 tionRefinementEngine]: Using refinement strategy SmtInterpolRefinementStrategy [2018-04-11 16:20:02,293 INFO L119 rtionOrderModulation]: Craig nested/tree interpolation forces the following order [2018-04-11 16:20:02,294 INFO L101 rtionOrderModulation]: Changing assertion order to NOT_INCREMENTALLY [2018-04-11 16:20:02,294 INFO L119 rtionOrderModulation]: Craig nested/tree interpolation forces the following order [2018-04-11 16:20:02,300 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-04-11 16:20:02,300 WARN L137 erpolLogProxyWrapper]: Using partial proofs (cut at CNF-level). Set option :produce-proofs to true to get complete proofs. [2018-04-11 16:20:02,326 INFO L431 seRefinementStrategy]: Interpolation failed due to KNOWN_IGNORE: Unknown lemma type! [2018-04-11 16:20:02,326 INFO L308 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2018-04-11 16:20:02,326 INFO L213 ckRefinementStrategy]: Switched to mode SMTINTERPOL_FP [2018-04-11 16:20:02,326 INFO L103 rtionOrderModulation]: Keeping assertion order OUTSIDE_LOOP_FIRST1 [2018-04-11 16:20:02,350 INFO L242 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2018-04-11 16:20:02,350 INFO L243 tOrderPrioritization]: Conjunction of SSA is unsat [2018-04-11 16:20:02,353 INFO L270 TraceCheckSpWp]: Computing forward predicates... [2018-04-11 16:20:02,375 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 6 treesize of output 5 [2018-04-11 16:20:02,376 INFO L267 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2018-04-11 16:20:02,390 INFO L267 ElimStorePlain]: Start of recursive call 1: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-04-11 16:20:02,391 INFO L202 ElimStorePlain]: Needed 2 recursive calls to eliminate 1 variables, input treesize:10, output treesize:9 [2018-04-11 16:20:02,416 INFO L700 Elim1Store]: detected not equals via solver [2018-04-11 16:20:02,417 INFO L700 Elim1Store]: detected not equals via solver [2018-04-11 16:20:02,417 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 2 select indices, 2 select index equivalence classes, 2 disjoint index pairs (out of 1 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 11 treesize of output 4 [2018-04-11 16:20:02,417 INFO L267 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2018-04-11 16:20:02,422 INFO L267 ElimStorePlain]: Start of recursive call 1: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-04-11 16:20:02,422 INFO L202 ElimStorePlain]: Needed 2 recursive calls to eliminate 1 variables, input treesize:26, output treesize:20 [2018-04-11 16:20:02,450 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 13 treesize of output 10 [2018-04-11 16:20:02,451 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 10 treesize of output 9 [2018-04-11 16:20:02,452 INFO L267 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 1 xjuncts. [2018-04-11 16:20:02,453 INFO L267 ElimStorePlain]: Start of recursive call 2: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-04-11 16:20:02,461 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 13 treesize of output 10 [2018-04-11 16:20:02,463 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 10 treesize of output 9 [2018-04-11 16:20:02,463 INFO L267 ElimStorePlain]: Start of recursive call 5: End of recursive call: and 1 xjuncts. [2018-04-11 16:20:02,464 INFO L267 ElimStorePlain]: Start of recursive call 4: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-04-11 16:20:02,470 INFO L267 ElimStorePlain]: Start of recursive call 1: 1 dim-0 vars, 2 dim-2 vars, End of recursive call: and 1 xjuncts. [2018-04-11 16:20:02,471 INFO L202 ElimStorePlain]: Needed 5 recursive calls to eliminate 3 variables, input treesize:43, output treesize:32 [2018-04-11 16:20:02,567 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 1 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 73 treesize of output 67 [2018-04-11 16:20:02,569 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 22 treesize of output 21 [2018-04-11 16:20:02,570 INFO L267 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 1 xjuncts. [2018-04-11 16:20:02,576 INFO L267 ElimStorePlain]: Start of recursive call 2: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-04-11 16:20:02,600 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 1 disjoint index pairs (out of 1 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 62 treesize of output 63 [2018-04-11 16:20:02,601 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 22 treesize of output 21 [2018-04-11 16:20:02,601 INFO L267 ElimStorePlain]: Start of recursive call 5: End of recursive call: and 1 xjuncts. [2018-04-11 16:20:02,614 INFO L267 ElimStorePlain]: Start of recursive call 4: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-04-11 16:20:02,667 INFO L267 ElimStorePlain]: Start of recursive call 1: 1 dim-0 vars, 2 dim-2 vars, End of recursive call: 1 dim-0 vars, and 1 xjuncts. [2018-04-11 16:20:02,667 INFO L202 ElimStorePlain]: Needed 5 recursive calls to eliminate 3 variables, input treesize:88, output treesize:68 [2018-04-11 16:20:02,876 INFO L682 Elim1Store]: detected equality via solver [2018-04-11 16:20:02,877 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 3 select indices, 3 select index equivalence classes, 1 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 0 case distinctions, treesize of input 79 treesize of output 81 [2018-04-11 16:20:02,879 INFO L682 Elim1Store]: detected equality via solver [2018-04-11 16:20:02,879 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 2 select indices, 2 select index equivalence classes, 1 disjoint index pairs (out of 1 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 54 treesize of output 34 [2018-04-11 16:20:02,880 INFO L267 ElimStorePlain]: Start of recursive call 3: 1 dim-0 vars, End of recursive call: 1 dim-0 vars, and 1 xjuncts. [2018-04-11 16:20:02,892 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 0 new quantified variables, introduced 1 case distinctions, treesize of input 21 treesize of output 18 [2018-04-11 16:20:02,892 INFO L267 ElimStorePlain]: Start of recursive call 4: End of recursive call: and 2 xjuncts. [2018-04-11 16:20:02,899 INFO L267 ElimStorePlain]: Start of recursive call 2: 2 dim-1 vars, End of recursive call: 2 dim-0 vars, and 2 xjuncts. [2018-04-11 16:20:02,913 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 2 select indices, 2 select index equivalence classes, 1 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 41 treesize of output 33 [2018-04-11 16:20:02,915 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 19 treesize of output 5 [2018-04-11 16:20:02,915 INFO L267 ElimStorePlain]: Start of recursive call 6: End of recursive call: and 1 xjuncts. [2018-04-11 16:20:02,922 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 0 new quantified variables, introduced 1 case distinctions, treesize of input 13 treesize of output 10 [2018-04-11 16:20:02,922 INFO L267 ElimStorePlain]: Start of recursive call 7: End of recursive call: and 2 xjuncts. [2018-04-11 16:20:02,926 INFO L267 ElimStorePlain]: Start of recursive call 5: 2 dim-1 vars, End of recursive call: and 2 xjuncts. [2018-04-11 16:20:02,928 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 2 select indices, 2 select index equivalence classes, 1 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 52 treesize of output 42 [2018-04-11 16:20:02,929 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 31 treesize of output 12 [2018-04-11 16:20:02,929 INFO L267 ElimStorePlain]: Start of recursive call 9: End of recursive call: and 1 xjuncts. [2018-04-11 16:20:02,933 INFO L700 Elim1Store]: detected not equals via solver [2018-04-11 16:20:02,933 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 2 select indices, 2 select index equivalence classes, 1 disjoint index pairs (out of 1 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 13 treesize of output 6 [2018-04-11 16:20:02,934 INFO L267 ElimStorePlain]: Start of recursive call 10: End of recursive call: and 1 xjuncts. [2018-04-11 16:20:02,935 INFO L267 ElimStorePlain]: Start of recursive call 8: 2 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-04-11 16:20:02,945 INFO L267 ElimStorePlain]: Start of recursive call 1: 2 dim-0 vars, 2 dim-2 vars, End of recursive call: and 3 xjuncts. [2018-04-11 16:20:02,945 INFO L202 ElimStorePlain]: Needed 10 recursive calls to eliminate 4 variables, input treesize:94, output treesize:24 [2018-04-11 16:20:03,030 INFO L134 CoverageAnalysis]: Checked inductivity of 28 backedges. 2 proven. 16 refuted. 0 times theorem prover too weak. 10 trivial. 0 not checked. [2018-04-11 16:20:03,030 INFO L320 seRefinementStrategy]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2018-04-11 16:20:03,030 INFO L335 seRefinementStrategy]: Number of different interpolants: perfect sequences [] imperfect sequences [21] total 21 [2018-04-11 16:20:03,030 INFO L442 AbstractCegarLoop]: Interpolant automaton has 21 states [2018-04-11 16:20:03,030 INFO L132 InterpolantAutomaton]: Constructing interpolant automaton starting with 21 interpolants. [2018-04-11 16:20:03,030 INFO L133 InterpolantAutomaton]: CoverageRelationStatistics Valid=41, Invalid=379, Unknown=0, NotChecked=0, Total=420 [2018-04-11 16:20:03,031 INFO L87 Difference]: Start difference. First operand 170 states and 181 transitions. Second operand 21 states. [2018-04-11 16:20:04,118 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-04-11 16:20:04,118 INFO L93 Difference]: Finished difference Result 178 states and 188 transitions. [2018-04-11 16:20:04,118 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 29 states. [2018-04-11 16:20:04,118 INFO L78 Accepts]: Start accepts. Automaton has 21 states. Word has length 61 [2018-04-11 16:20:04,118 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-04-11 16:20:04,119 INFO L225 Difference]: With dead ends: 178 [2018-04-11 16:20:04,119 INFO L226 Difference]: Without dead ends: 178 [2018-04-11 16:20:04,119 INFO L567 BasicCegarLoop]: 0 DeclaredPredicates, 85 GetRequests, 41 SyntacticMatches, 0 SemanticMatches, 44 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 308 ImplicationChecksByTransitivity, 1.0s TimeCoverageRelationStatistics Valid=255, Invalid=1815, Unknown=0, NotChecked=0, Total=2070 [2018-04-11 16:20:04,119 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 178 states. [2018-04-11 16:20:04,120 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 178 to 175. [2018-04-11 16:20:04,121 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 175 states. [2018-04-11 16:20:04,121 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 175 states to 175 states and 186 transitions. [2018-04-11 16:20:04,121 INFO L78 Accepts]: Start accepts. Automaton has 175 states and 186 transitions. Word has length 61 [2018-04-11 16:20:04,121 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-04-11 16:20:04,121 INFO L459 AbstractCegarLoop]: Abstraction has 175 states and 186 transitions. [2018-04-11 16:20:04,121 INFO L460 AbstractCegarLoop]: Interpolant automaton has 21 states. [2018-04-11 16:20:04,121 INFO L276 IsEmpty]: Start isEmpty. Operand 175 states and 186 transitions. [2018-04-11 16:20:04,121 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 63 [2018-04-11 16:20:04,122 INFO L347 BasicCegarLoop]: Found error trace [2018-04-11 16:20:04,122 INFO L355 BasicCegarLoop]: trace histogram [3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-04-11 16:20:04,122 INFO L408 AbstractCegarLoop]: === Iteration 27 === [mainErr5RequiresViolation, mainErr13RequiresViolation, mainErr1RequiresViolation, mainErr9RequiresViolation, mainErr0RequiresViolation, mainErr18EnsuresViolationMEMORY_LEAK, mainErr17AssertViolationMEMORY_FREE, mainErr3RequiresViolation, mainErr7RequiresViolation, mainErr11RequiresViolation, mainErr8RequiresViolation, mainErr10RequiresViolation, mainErr15RequiresViolation, mainErr2RequiresViolation, mainErr4RequiresViolation, mainErr12RequiresViolation, mainErr6RequiresViolation, mainErr16AssertViolationMEMORY_FREE, mainErr14RequiresViolation]=== [2018-04-11 16:20:04,122 INFO L82 PathProgramCache]: Analyzing trace with hash 171989723, now seen corresponding path program 4 times [2018-04-11 16:20:04,122 INFO L213 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS_NO_ARRAY [2018-04-11 16:20:04,122 INFO L68 tionRefinementEngine]: Using refinement strategy SmtInterpolRefinementStrategy [2018-04-11 16:20:04,122 INFO L119 rtionOrderModulation]: Craig nested/tree interpolation forces the following order [2018-04-11 16:20:04,122 INFO L101 rtionOrderModulation]: Changing assertion order to NOT_INCREMENTALLY [2018-04-11 16:20:04,122 INFO L119 rtionOrderModulation]: Craig nested/tree interpolation forces the following order [2018-04-11 16:20:04,127 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-04-11 16:20:04,127 WARN L137 erpolLogProxyWrapper]: Using partial proofs (cut at CNF-level). Set option :produce-proofs to true to get complete proofs. [2018-04-11 16:20:04,132 INFO L431 seRefinementStrategy]: Interpolation failed due to KNOWN_IGNORE: Unknown lemma type! [2018-04-11 16:20:04,133 INFO L308 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2018-04-11 16:20:04,133 INFO L213 ckRefinementStrategy]: Switched to mode SMTINTERPOL_FP [2018-04-11 16:20:04,133 INFO L103 rtionOrderModulation]: Keeping assertion order TERMS_WITH_SMALL_CONSTANTS_FIRST [2018-04-11 16:20:04,146 INFO L242 tOrderPrioritization]: Assert order TERMS_WITH_SMALL_CONSTANTS_FIRST issued 0 check-sat command(s) [2018-04-11 16:20:04,146 INFO L243 tOrderPrioritization]: Conjunction of SSA is unsat [2018-04-11 16:20:04,148 INFO L270 TraceCheckSpWp]: Computing forward predicates... [2018-04-11 16:20:04,206 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 13 treesize of output 10 [2018-04-11 16:20:04,207 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 10 treesize of output 9 [2018-04-11 16:20:04,207 INFO L267 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 1 xjuncts. [2018-04-11 16:20:04,208 INFO L267 ElimStorePlain]: Start of recursive call 2: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-04-11 16:20:04,214 INFO L267 ElimStorePlain]: Start of recursive call 1: 1 dim-0 vars, 1 dim-2 vars, End of recursive call: and 1 xjuncts. [2018-04-11 16:20:04,214 INFO L202 ElimStorePlain]: Needed 3 recursive calls to eliminate 2 variables, input treesize:45, output treesize:44 [2018-04-11 16:20:04,259 INFO L700 Elim1Store]: detected not equals via solver [2018-04-11 16:20:04,261 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 1 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 55 treesize of output 59 [2018-04-11 16:20:04,262 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 16 treesize of output 15 [2018-04-11 16:20:04,262 INFO L267 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 1 xjuncts. [2018-04-11 16:20:04,266 INFO L267 ElimStorePlain]: Start of recursive call 2: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-04-11 16:20:04,271 INFO L267 ElimStorePlain]: Start of recursive call 1: 2 dim-0 vars, 1 dim-2 vars, End of recursive call: 2 dim-0 vars, and 1 xjuncts. [2018-04-11 16:20:04,272 INFO L202 ElimStorePlain]: Needed 3 recursive calls to eliminate 3 variables, input treesize:66, output treesize:56 [2018-04-11 16:20:04,314 INFO L700 Elim1Store]: detected not equals via solver [2018-04-11 16:20:04,315 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 2 select indices, 2 select index equivalence classes, 1 disjoint index pairs (out of 1 index pairs), introduced 3 new quantified variables, introduced 0 case distinctions, treesize of input 54 treesize of output 55 [2018-04-11 16:20:04,321 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 2 select indices, 2 select index equivalence classes, 1 disjoint index pairs (out of 1 index pairs), introduced 1 new quantified variables, introduced 1 case distinctions, treesize of input 41 treesize of output 34 [2018-04-11 16:20:04,322 INFO L267 ElimStorePlain]: Start of recursive call 3: 1 dim-0 vars, End of recursive call: 1 dim-0 vars, and 2 xjuncts. [2018-04-11 16:20:04,336 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 7 treesize of output 1 [2018-04-11 16:20:04,336 INFO L267 ElimStorePlain]: Start of recursive call 4: End of recursive call: and 1 xjuncts. [2018-04-11 16:20:04,342 INFO L267 ElimStorePlain]: Start of recursive call 2: 2 dim-1 vars, End of recursive call: 1 dim-0 vars, and 2 xjuncts. [2018-04-11 16:20:04,352 INFO L267 ElimStorePlain]: Start of recursive call 1: 2 dim-0 vars, 1 dim-2 vars, End of recursive call: 1 dim-0 vars, and 2 xjuncts. [2018-04-11 16:20:04,352 INFO L202 ElimStorePlain]: Needed 4 recursive calls to eliminate 3 variables, input treesize:65, output treesize:56 [2018-04-11 16:20:04,423 WARN L1033 $PredicateComparison]: unable to prove that (exists ((main_~p~0.base Int)) (let ((.cse0 (store |c_old(#valid)| main_~p~0.base 1))) (and (= 0 (select |c_old(#valid)| main_~p~0.base)) (= |c_#valid| (store (store .cse0 c_main_~t~0.base 1) main_~p~0.base 0)) (= (select .cse0 c_main_~t~0.base) 0)))) is different from true [2018-04-11 16:20:04,425 WARN L1033 $PredicateComparison]: unable to prove that (exists ((v_subst_22 Int)) (let ((.cse0 (store |c_old(#valid)| v_subst_22 1))) (and (= (store (store .cse0 c_main_~p~0.base 1) v_subst_22 0) |c_#valid|) (= 0 (select |c_old(#valid)| v_subst_22)) (= (select .cse0 c_main_~p~0.base) 0)))) is different from true [2018-04-11 16:20:04,428 WARN L1033 $PredicateComparison]: unable to prove that (exists ((main_~p~0.base Int) (v_subst_22 Int)) (let ((.cse0 (store |c_old(#valid)| v_subst_22 1))) (and (= |c_#valid| (store (store (store .cse0 main_~p~0.base 1) v_subst_22 0) main_~p~0.base 0)) (= 0 (select |c_old(#valid)| v_subst_22)) (= (select .cse0 main_~p~0.base) 0)))) is different from true [2018-04-11 16:20:04,442 INFO L134 CoverageAnalysis]: Checked inductivity of 26 backedges. 0 proven. 4 refuted. 0 times theorem prover too weak. 10 trivial. 12 not checked. [2018-04-11 16:20:04,442 INFO L320 seRefinementStrategy]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2018-04-11 16:20:04,442 INFO L335 seRefinementStrategy]: Number of different interpolants: perfect sequences [] imperfect sequences [19] total 19 [2018-04-11 16:20:04,443 INFO L442 AbstractCegarLoop]: Interpolant automaton has 20 states [2018-04-11 16:20:04,443 INFO L132 InterpolantAutomaton]: Constructing interpolant automaton starting with 20 interpolants. [2018-04-11 16:20:04,443 INFO L133 InterpolantAutomaton]: CoverageRelationStatistics Valid=41, Invalid=240, Unknown=3, NotChecked=96, Total=380 [2018-04-11 16:20:04,443 INFO L87 Difference]: Start difference. First operand 175 states and 186 transitions. Second operand 20 states. [2018-04-11 16:20:05,002 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-04-11 16:20:05,002 INFO L93 Difference]: Finished difference Result 177 states and 187 transitions. [2018-04-11 16:20:05,003 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 21 states. [2018-04-11 16:20:05,003 INFO L78 Accepts]: Start accepts. Automaton has 20 states. Word has length 62 [2018-04-11 16:20:05,003 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-04-11 16:20:05,003 INFO L225 Difference]: With dead ends: 177 [2018-04-11 16:20:05,003 INFO L226 Difference]: Without dead ends: 139 [2018-04-11 16:20:05,003 INFO L567 BasicCegarLoop]: 0 DeclaredPredicates, 72 GetRequests, 43 SyntacticMatches, 0 SemanticMatches, 29 ConstructedPredicates, 3 IntricatePredicates, 0 DeprecatedPredicates, 70 ImplicationChecksByTransitivity, 0.4s TimeCoverageRelationStatistics Valid=111, Invalid=654, Unknown=3, NotChecked=162, Total=930 [2018-04-11 16:20:05,004 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 139 states. [2018-04-11 16:20:05,004 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 139 to 139. [2018-04-11 16:20:05,004 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 139 states. [2018-04-11 16:20:05,005 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 139 states to 139 states and 149 transitions. [2018-04-11 16:20:05,005 INFO L78 Accepts]: Start accepts. Automaton has 139 states and 149 transitions. Word has length 62 [2018-04-11 16:20:05,005 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-04-11 16:20:05,005 INFO L459 AbstractCegarLoop]: Abstraction has 139 states and 149 transitions. [2018-04-11 16:20:05,005 INFO L460 AbstractCegarLoop]: Interpolant automaton has 20 states. [2018-04-11 16:20:05,005 INFO L276 IsEmpty]: Start isEmpty. Operand 139 states and 149 transitions. [2018-04-11 16:20:05,005 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 65 [2018-04-11 16:20:05,005 INFO L347 BasicCegarLoop]: Found error trace [2018-04-11 16:20:05,005 INFO L355 BasicCegarLoop]: trace histogram [4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-04-11 16:20:05,005 INFO L408 AbstractCegarLoop]: === Iteration 28 === [mainErr5RequiresViolation, mainErr13RequiresViolation, mainErr1RequiresViolation, mainErr9RequiresViolation, mainErr0RequiresViolation, mainErr18EnsuresViolationMEMORY_LEAK, mainErr17AssertViolationMEMORY_FREE, mainErr3RequiresViolation, mainErr7RequiresViolation, mainErr11RequiresViolation, mainErr8RequiresViolation, mainErr10RequiresViolation, mainErr15RequiresViolation, mainErr2RequiresViolation, mainErr4RequiresViolation, mainErr12RequiresViolation, mainErr6RequiresViolation, mainErr16AssertViolationMEMORY_FREE, mainErr14RequiresViolation]=== [2018-04-11 16:20:05,006 INFO L82 PathProgramCache]: Analyzing trace with hash 1712539914, now seen corresponding path program 7 times [2018-04-11 16:20:05,006 INFO L213 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS_NO_ARRAY [2018-04-11 16:20:05,006 INFO L68 tionRefinementEngine]: Using refinement strategy SmtInterpolRefinementStrategy [2018-04-11 16:20:05,006 INFO L119 rtionOrderModulation]: Craig nested/tree interpolation forces the following order [2018-04-11 16:20:05,006 INFO L101 rtionOrderModulation]: Changing assertion order to NOT_INCREMENTALLY [2018-04-11 16:20:05,006 INFO L119 rtionOrderModulation]: Craig nested/tree interpolation forces the following order [2018-04-11 16:20:05,013 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-04-11 16:20:05,014 WARN L137 erpolLogProxyWrapper]: Using partial proofs (cut at CNF-level). Set option :produce-proofs to true to get complete proofs. [2018-04-11 16:20:05,022 INFO L431 seRefinementStrategy]: Interpolation failed due to KNOWN_IGNORE: Unknown lemma type! [2018-04-11 16:20:05,022 INFO L308 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2018-04-11 16:20:05,022 INFO L213 ckRefinementStrategy]: Switched to mode SMTINTERPOL_FP [2018-04-11 16:20:05,023 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-04-11 16:20:05,061 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-04-11 16:20:05,065 INFO L270 TraceCheckSpWp]: Computing forward predicates... [2018-04-11 16:20:05,071 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 6 treesize of output 5 [2018-04-11 16:20:05,072 INFO L267 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2018-04-11 16:20:05,075 INFO L267 ElimStorePlain]: Start of recursive call 1: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-04-11 16:20:05,075 INFO L202 ElimStorePlain]: Needed 2 recursive calls to eliminate 1 variables, input treesize:10, output treesize:9 [2018-04-11 16:20:05,103 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 6 treesize of output 5 [2018-04-11 16:20:05,103 INFO L267 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2018-04-11 16:20:05,115 INFO L700 Elim1Store]: detected not equals via solver [2018-04-11 16:20:05,115 INFO L700 Elim1Store]: detected not equals via solver [2018-04-11 16:20:05,115 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 2 select indices, 2 select index equivalence classes, 2 disjoint index pairs (out of 1 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 17 treesize of output 21 [2018-04-11 16:20:05,116 INFO L267 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 1 xjuncts. [2018-04-11 16:20:05,126 INFO L267 ElimStorePlain]: Start of recursive call 1: 2 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-04-11 16:20:05,127 INFO L202 ElimStorePlain]: Needed 3 recursive calls to eliminate 2 variables, input treesize:35, output treesize:32 [2018-04-11 16:20:05,149 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 13 treesize of output 10 [2018-04-11 16:20:05,150 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 10 treesize of output 9 [2018-04-11 16:20:05,151 INFO L267 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 1 xjuncts. [2018-04-11 16:20:05,152 INFO L267 ElimStorePlain]: Start of recursive call 2: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-04-11 16:20:05,159 INFO L267 ElimStorePlain]: Start of recursive call 1: 1 dim-0 vars, 1 dim-2 vars, End of recursive call: and 1 xjuncts. [2018-04-11 16:20:05,160 INFO L202 ElimStorePlain]: Needed 3 recursive calls to eliminate 2 variables, input treesize:42, output treesize:47 [2018-04-11 16:20:05,217 INFO L700 Elim1Store]: detected not equals via solver [2018-04-11 16:20:05,218 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 1 select indices, 1 select index equivalence classes, 2 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 18 treesize of output 27 [2018-04-11 16:20:05,218 INFO L267 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2018-04-11 16:20:05,232 INFO L700 Elim1Store]: detected not equals via solver [2018-04-11 16:20:05,233 INFO L700 Elim1Store]: detected not equals via solver [2018-04-11 16:20:05,233 INFO L700 Elim1Store]: detected not equals via solver [2018-04-11 16:20:05,234 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 3 select indices, 3 select index equivalence classes, 4 disjoint index pairs (out of 3 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 28 treesize of output 58 [2018-04-11 16:20:05,234 INFO L267 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 1 xjuncts. [2018-04-11 16:20:05,246 INFO L267 ElimStorePlain]: Start of recursive call 1: 2 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-04-11 16:20:05,246 INFO L202 ElimStorePlain]: Needed 3 recursive calls to eliminate 2 variables, input treesize:70, output treesize:77 [2018-04-11 16:20:05,285 INFO L700 Elim1Store]: detected not equals via solver [2018-04-11 16:20:05,287 INFO L700 Elim1Store]: detected not equals via solver [2018-04-11 16:20:05,288 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 3 disjoint index pairs (out of 1 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 65 treesize of output 77 [2018-04-11 16:20:05,297 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 2 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 22 treesize of output 18 [2018-04-11 16:20:05,297 INFO L267 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 1 xjuncts. [2018-04-11 16:20:05,305 INFO L267 ElimStorePlain]: Start of recursive call 2: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-04-11 16:20:05,317 INFO L267 ElimStorePlain]: Start of recursive call 1: 1 dim-0 vars, 1 dim-2 vars, End of recursive call: and 1 xjuncts. [2018-04-11 16:20:05,317 INFO L202 ElimStorePlain]: Needed 3 recursive calls to eliminate 2 variables, input treesize:102, output treesize:92 [2018-04-11 16:20:05,416 INFO L700 Elim1Store]: detected not equals via solver [2018-04-11 16:20:05,417 INFO L700 Elim1Store]: detected not equals via solver [2018-04-11 16:20:05,418 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 2 select indices, 2 select index equivalence classes, 4 disjoint index pairs (out of 1 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 48 treesize of output 95 [2018-04-11 16:20:05,418 INFO L267 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2018-04-11 16:20:05,469 INFO L700 Elim1Store]: detected not equals via solver [2018-04-11 16:20:05,469 INFO L700 Elim1Store]: detected not equals via solver [2018-04-11 16:20:05,470 INFO L700 Elim1Store]: detected not equals via solver [2018-04-11 16:20:05,471 INFO L700 Elim1Store]: detected not equals via solver [2018-04-11 16:20:05,475 INFO L700 Elim1Store]: detected not equals via solver [2018-04-11 16:20:05,476 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 4 select indices, 4 select index equivalence classes, 7 disjoint index pairs (out of 6 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 39 treesize of output 79 [2018-04-11 16:20:05,476 INFO L267 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 1 xjuncts. [2018-04-11 16:20:05,493 INFO L267 ElimStorePlain]: Start of recursive call 1: 1 dim-0 vars, 2 dim-1 vars, End of recursive call: 1 dim-0 vars, and 1 xjuncts. [2018-04-11 16:20:05,493 INFO L202 ElimStorePlain]: Needed 3 recursive calls to eliminate 3 variables, input treesize:145, output treesize:136 [2018-04-11 16:20:05,564 INFO L700 Elim1Store]: detected not equals via solver [2018-04-11 16:20:05,565 INFO L700 Elim1Store]: detected not equals via solver [2018-04-11 16:20:05,565 INFO L700 Elim1Store]: detected not equals via solver [2018-04-11 16:20:05,569 INFO L700 Elim1Store]: detected not equals via solver [2018-04-11 16:20:05,571 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 3 select indices, 3 select index equivalence classes, 6 disjoint index pairs (out of 3 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 134 treesize of output 142 [2018-04-11 16:20:05,573 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 3 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 10 treesize of output 9 [2018-04-11 16:20:05,573 INFO L267 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 1 xjuncts. [2018-04-11 16:20:05,588 INFO L267 ElimStorePlain]: Start of recursive call 2: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-04-11 16:20:05,605 INFO L267 ElimStorePlain]: Start of recursive call 1: 2 dim-0 vars, 1 dim-2 vars, End of recursive call: 1 dim-0 vars, and 1 xjuncts. [2018-04-11 16:20:05,605 INFO L202 ElimStorePlain]: Needed 3 recursive calls to eliminate 3 variables, input treesize:154, output treesize:153 [2018-04-11 16:20:05,709 INFO L700 Elim1Store]: detected not equals via solver [2018-04-11 16:20:05,712 INFO L700 Elim1Store]: detected not equals via solver [2018-04-11 16:20:05,727 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 4 select indices, 4 select index equivalence classes, 7 disjoint index pairs (out of 6 index pairs), introduced 4 new quantified variables, introduced 0 case distinctions, treesize of input 253 treesize of output 181 [2018-04-11 16:20:05,729 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 28 treesize of output 27 [2018-04-11 16:20:05,729 INFO L267 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 1 xjuncts. [2018-04-11 16:20:05,744 INFO L267 ElimStorePlain]: Start of recursive call 2: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-04-11 16:20:05,760 INFO L267 ElimStorePlain]: Start of recursive call 1: 3 dim-0 vars, 1 dim-2 vars, End of recursive call: 3 dim-0 vars, and 1 xjuncts. [2018-04-11 16:20:05,760 INFO L202 ElimStorePlain]: Needed 3 recursive calls to eliminate 4 variables, input treesize:259, output treesize:237 [2018-04-11 16:20:05,824 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 7 treesize of output 5 [2018-04-11 16:20:05,825 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 5 treesize of output 1 [2018-04-11 16:20:05,825 INFO L267 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 1 xjuncts. [2018-04-11 16:20:05,826 INFO L267 ElimStorePlain]: Start of recursive call 2: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-04-11 16:20:05,842 INFO L267 ElimStorePlain]: Start of recursive call 1: 4 dim-0 vars, 1 dim-2 vars, End of recursive call: 4 dim-0 vars, and 1 xjuncts. [2018-04-11 16:20:05,842 INFO L202 ElimStorePlain]: Needed 3 recursive calls to eliminate 5 variables, input treesize:220, output treesize:213 [2018-04-11 16:20:05,952 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 3 select indices, 3 select index equivalence classes, 5 disjoint index pairs (out of 3 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 68 treesize of output 79 [2018-04-11 16:20:05,952 INFO L267 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2018-04-11 16:20:05,966 INFO L700 Elim1Store]: detected not equals via solver [2018-04-11 16:20:05,969 INFO L700 Elim1Store]: detected not equals via solver [2018-04-11 16:20:05,970 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 4 select indices, 4 select index equivalence classes, 7 disjoint index pairs (out of 6 index pairs), introduced 7 new quantified variables, introduced 0 case distinctions, treesize of input 160 treesize of output 101 [2018-04-11 16:20:05,972 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 3 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 31 treesize of output 19 [2018-04-11 16:20:05,972 INFO L267 ElimStorePlain]: Start of recursive call 4: End of recursive call: and 1 xjuncts. [2018-04-11 16:20:05,978 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 2 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 17 treesize of output 13 [2018-04-11 16:20:05,979 INFO L267 ElimStorePlain]: Start of recursive call 5: End of recursive call: and 1 xjuncts. [2018-04-11 16:20:05,983 INFO L682 Elim1Store]: detected equality via solver [2018-04-11 16:20:05,984 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 2 select indices, 2 select index equivalence classes, 1 disjoint index pairs (out of 1 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 25 treesize of output 17 [2018-04-11 16:20:05,984 INFO L267 ElimStorePlain]: Start of recursive call 6: End of recursive call: and 1 xjuncts. [2018-04-11 16:20:05,988 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 7 treesize of output 1 [2018-04-11 16:20:05,988 INFO L267 ElimStorePlain]: Start of recursive call 7: End of recursive call: and 1 xjuncts. [2018-04-11 16:20:05,990 INFO L267 ElimStorePlain]: Start of recursive call 3: 4 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-04-11 16:20:05,995 INFO L267 ElimStorePlain]: Start of recursive call 1: 5 dim-0 vars, 1 dim-1 vars, 1 dim-2 vars, End of recursive call: and 1 xjuncts. [2018-04-11 16:20:05,995 INFO L202 ElimStorePlain]: Needed 7 recursive calls to eliminate 7 variables, input treesize:233, output treesize:5 [2018-04-11 16:20:06,052 INFO L134 CoverageAnalysis]: Checked inductivity of 57 backedges. 0 proven. 57 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-04-11 16:20:06,052 INFO L320 seRefinementStrategy]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2018-04-11 16:20:06,052 INFO L335 seRefinementStrategy]: Number of different interpolants: perfect sequences [] imperfect sequences [27] total 27 [2018-04-11 16:20:06,052 INFO L442 AbstractCegarLoop]: Interpolant automaton has 28 states [2018-04-11 16:20:06,052 INFO L132 InterpolantAutomaton]: Constructing interpolant automaton starting with 28 interpolants. [2018-04-11 16:20:06,052 INFO L133 InterpolantAutomaton]: CoverageRelationStatistics Valid=87, Invalid=669, Unknown=0, NotChecked=0, Total=756 [2018-04-11 16:20:06,053 INFO L87 Difference]: Start difference. First operand 139 states and 149 transitions. Second operand 28 states. [2018-04-11 16:20:08,167 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-04-11 16:20:08,168 INFO L93 Difference]: Finished difference Result 180 states and 192 transitions. [2018-04-11 16:20:08,168 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 37 states. [2018-04-11 16:20:08,168 INFO L78 Accepts]: Start accepts. Automaton has 28 states. Word has length 64 [2018-04-11 16:20:08,168 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-04-11 16:20:08,168 INFO L225 Difference]: With dead ends: 180 [2018-04-11 16:20:08,168 INFO L226 Difference]: Without dead ends: 180 [2018-04-11 16:20:08,169 INFO L567 BasicCegarLoop]: 0 DeclaredPredicates, 95 GetRequests, 35 SyntacticMatches, 2 SemanticMatches, 58 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 846 ImplicationChecksByTransitivity, 1.7s TimeCoverageRelationStatistics Valid=442, Invalid=3098, Unknown=0, NotChecked=0, Total=3540 [2018-04-11 16:20:08,169 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 180 states. [2018-04-11 16:20:08,170 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 180 to 143. [2018-04-11 16:20:08,170 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 143 states. [2018-04-11 16:20:08,170 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 143 states to 143 states and 155 transitions. [2018-04-11 16:20:08,170 INFO L78 Accepts]: Start accepts. Automaton has 143 states and 155 transitions. Word has length 64 [2018-04-11 16:20:08,171 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-04-11 16:20:08,171 INFO L459 AbstractCegarLoop]: Abstraction has 143 states and 155 transitions. [2018-04-11 16:20:08,171 INFO L460 AbstractCegarLoop]: Interpolant automaton has 28 states. [2018-04-11 16:20:08,171 INFO L276 IsEmpty]: Start isEmpty. Operand 143 states and 155 transitions. [2018-04-11 16:20:08,171 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 65 [2018-04-11 16:20:08,171 INFO L347 BasicCegarLoop]: Found error trace [2018-04-11 16:20:08,171 INFO L355 BasicCegarLoop]: trace histogram [4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-04-11 16:20:08,171 INFO L408 AbstractCegarLoop]: === Iteration 29 === [mainErr5RequiresViolation, mainErr13RequiresViolation, mainErr1RequiresViolation, mainErr9RequiresViolation, mainErr0RequiresViolation, mainErr18EnsuresViolationMEMORY_LEAK, mainErr17AssertViolationMEMORY_FREE, mainErr3RequiresViolation, mainErr7RequiresViolation, mainErr11RequiresViolation, mainErr8RequiresViolation, mainErr10RequiresViolation, mainErr15RequiresViolation, mainErr2RequiresViolation, mainErr4RequiresViolation, mainErr12RequiresViolation, mainErr6RequiresViolation, mainErr16AssertViolationMEMORY_FREE, mainErr14RequiresViolation]=== [2018-04-11 16:20:08,171 INFO L82 PathProgramCache]: Analyzing trace with hash 1712539915, now seen corresponding path program 5 times [2018-04-11 16:20:08,171 INFO L213 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS_NO_ARRAY [2018-04-11 16:20:08,171 INFO L68 tionRefinementEngine]: Using refinement strategy SmtInterpolRefinementStrategy [2018-04-11 16:20:08,172 INFO L119 rtionOrderModulation]: Craig nested/tree interpolation forces the following order [2018-04-11 16:20:08,172 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-04-11 16:20:08,172 INFO L119 rtionOrderModulation]: Craig nested/tree interpolation forces the following order [2018-04-11 16:20:08,180 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-04-11 16:20:08,180 WARN L137 erpolLogProxyWrapper]: Using partial proofs (cut at CNF-level). Set option :produce-proofs to true to get complete proofs. [2018-04-11 16:20:08,185 INFO L431 seRefinementStrategy]: Interpolation failed due to KNOWN_IGNORE: Unknown lemma type! [2018-04-11 16:20:08,186 INFO L308 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2018-04-11 16:20:08,186 INFO L213 ckRefinementStrategy]: Switched to mode SMTINTERPOL_FP [2018-04-11 16:20:08,186 INFO L103 rtionOrderModulation]: Keeping assertion order INSIDE_LOOP_FIRST1 [2018-04-11 16:20:08,210 INFO L242 tOrderPrioritization]: Assert order INSIDE_LOOP_FIRST1 issued 4 check-sat command(s) [2018-04-11 16:20:08,210 INFO L243 tOrderPrioritization]: Conjunction of SSA is unsat [2018-04-11 16:20:08,213 INFO L270 TraceCheckSpWp]: Computing forward predicates... [2018-04-11 16:20:08,215 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 6 treesize of output 5 [2018-04-11 16:20:08,215 INFO L267 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2018-04-11 16:20:08,216 INFO L267 ElimStorePlain]: Start of recursive call 1: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-04-11 16:20:08,216 INFO L202 ElimStorePlain]: Needed 2 recursive calls to eliminate 1 variables, input treesize:6, output treesize:5 [2018-04-11 16:20:08,219 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 6 treesize of output 5 [2018-04-11 16:20:08,219 INFO L267 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2018-04-11 16:20:08,225 INFO L700 Elim1Store]: detected not equals via solver [2018-04-11 16:20:08,225 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 1 select indices, 1 select index equivalence classes, 2 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 12 treesize of output 21 [2018-04-11 16:20:08,225 INFO L267 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 1 xjuncts. [2018-04-11 16:20:08,231 INFO L267 ElimStorePlain]: Start of recursive call 1: 2 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-04-11 16:20:08,231 INFO L202 ElimStorePlain]: Needed 3 recursive calls to eliminate 2 variables, input treesize:25, output treesize:19 [2018-04-11 16:20:08,290 INFO L700 Elim1Store]: detected not equals via solver [2018-04-11 16:20:08,291 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 1 select indices, 1 select index equivalence classes, 2 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 12 treesize of output 15 [2018-04-11 16:20:08,291 INFO L267 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2018-04-11 16:20:08,303 INFO L700 Elim1Store]: detected not equals via solver [2018-04-11 16:20:08,304 INFO L700 Elim1Store]: detected not equals via solver [2018-04-11 16:20:08,304 INFO L700 Elim1Store]: detected not equals via solver [2018-04-11 16:20:08,305 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 3 select indices, 3 select index equivalence classes, 4 disjoint index pairs (out of 3 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 22 treesize of output 34 [2018-04-11 16:20:08,305 INFO L267 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 1 xjuncts. [2018-04-11 16:20:08,316 INFO L267 ElimStorePlain]: Start of recursive call 1: 2 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-04-11 16:20:08,316 INFO L202 ElimStorePlain]: Needed 3 recursive calls to eliminate 2 variables, input treesize:49, output treesize:42 [2018-04-11 16:20:08,346 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 13 treesize of output 10 [2018-04-11 16:20:08,347 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 10 treesize of output 9 [2018-04-11 16:20:08,347 INFO L267 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 1 xjuncts. [2018-04-11 16:20:08,348 INFO L267 ElimStorePlain]: Start of recursive call 2: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-04-11 16:20:08,361 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 13 treesize of output 10 [2018-04-11 16:20:08,362 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 10 treesize of output 9 [2018-04-11 16:20:08,363 INFO L267 ElimStorePlain]: Start of recursive call 5: End of recursive call: and 1 xjuncts. [2018-04-11 16:20:08,364 INFO L267 ElimStorePlain]: Start of recursive call 4: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-04-11 16:20:08,375 INFO L267 ElimStorePlain]: Start of recursive call 1: 1 dim-0 vars, 2 dim-2 vars, End of recursive call: and 1 xjuncts. [2018-04-11 16:20:08,375 INFO L202 ElimStorePlain]: Needed 5 recursive calls to eliminate 3 variables, input treesize:72, output treesize:73 [2018-04-11 16:20:08,453 INFO L700 Elim1Store]: detected not equals via solver [2018-04-11 16:20:08,453 INFO L700 Elim1Store]: detected not equals via solver [2018-04-11 16:20:08,454 INFO L700 Elim1Store]: detected not equals via solver [2018-04-11 16:20:08,454 INFO L700 Elim1Store]: detected not equals via solver [2018-04-11 16:20:08,455 INFO L700 Elim1Store]: detected not equals via solver [2018-04-11 16:20:08,455 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 4 select indices, 4 select index equivalence classes, 7 disjoint index pairs (out of 6 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 33 treesize of output 81 [2018-04-11 16:20:08,455 INFO L267 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2018-04-11 16:20:08,481 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 2 select indices, 2 select index equivalence classes, 3 disjoint index pairs (out of 1 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 30 treesize of output 53 [2018-04-11 16:20:08,481 INFO L267 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 1 xjuncts. [2018-04-11 16:20:08,499 INFO L267 ElimStorePlain]: Start of recursive call 1: 1 dim-0 vars, 2 dim-1 vars, End of recursive call: 1 dim-0 vars, and 1 xjuncts. [2018-04-11 16:20:08,499 INFO L202 ElimStorePlain]: Needed 3 recursive calls to eliminate 3 variables, input treesize:115, output treesize:118 [2018-04-11 16:20:08,556 INFO L700 Elim1Store]: detected not equals via solver [2018-04-11 16:20:08,559 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 2 disjoint index pairs (out of 1 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 32 treesize of output 39 [2018-04-11 16:20:08,560 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 16 treesize of output 15 [2018-04-11 16:20:08,560 INFO L267 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 1 xjuncts. [2018-04-11 16:20:08,565 INFO L267 ElimStorePlain]: Start of recursive call 2: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-04-11 16:20:08,589 INFO L700 Elim1Store]: detected not equals via solver [2018-04-11 16:20:08,590 INFO L700 Elim1Store]: detected not equals via solver [2018-04-11 16:20:08,591 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 3 disjoint index pairs (out of 1 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 69 treesize of output 81 [2018-04-11 16:20:08,592 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 2 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 22 treesize of output 18 [2018-04-11 16:20:08,592 INFO L267 ElimStorePlain]: Start of recursive call 5: End of recursive call: and 1 xjuncts. [2018-04-11 16:20:08,599 INFO L267 ElimStorePlain]: Start of recursive call 4: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-04-11 16:20:08,619 INFO L267 ElimStorePlain]: Start of recursive call 1: 2 dim-0 vars, 2 dim-2 vars, End of recursive call: 1 dim-0 vars, and 1 xjuncts. [2018-04-11 16:20:08,619 INFO L202 ElimStorePlain]: Needed 5 recursive calls to eliminate 4 variables, input treesize:146, output treesize:138 [2018-04-11 16:20:08,743 INFO L700 Elim1Store]: detected not equals via solver [2018-04-11 16:20:08,743 INFO L700 Elim1Store]: detected not equals via solver [2018-04-11 16:20:08,744 INFO L700 Elim1Store]: detected not equals via solver [2018-04-11 16:20:08,744 INFO L700 Elim1Store]: detected not equals via solver [2018-04-11 16:20:08,745 INFO L700 Elim1Store]: detected not equals via solver [2018-04-11 16:20:08,746 INFO L700 Elim1Store]: detected not equals via solver [2018-04-11 16:20:08,746 INFO L700 Elim1Store]: detected not equals via solver [2018-04-11 16:20:08,747 INFO L700 Elim1Store]: detected not equals via solver [2018-04-11 16:20:08,747 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 5 select indices, 5 select index equivalence classes, 11 disjoint index pairs (out of 10 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 50 treesize of output 168 [2018-04-11 16:20:08,748 INFO L267 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2018-04-11 16:20:08,786 INFO L700 Elim1Store]: detected not equals via solver [2018-04-11 16:20:08,787 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 3 select indices, 3 select index equivalence classes, 6 disjoint index pairs (out of 3 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 47 treesize of output 124 [2018-04-11 16:20:08,787 INFO L267 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 1 xjuncts. [2018-04-11 16:20:08,816 INFO L267 ElimStorePlain]: Start of recursive call 1: 2 dim-0 vars, 2 dim-1 vars, End of recursive call: 2 dim-0 vars, and 1 xjuncts. [2018-04-11 16:20:08,816 INFO L202 ElimStorePlain]: Needed 3 recursive calls to eliminate 4 variables, input treesize:195, output treesize:214 [2018-04-11 16:20:08,891 INFO L700 Elim1Store]: detected not equals via solver [2018-04-11 16:20:08,892 INFO L700 Elim1Store]: detected not equals via solver [2018-04-11 16:20:08,892 INFO L700 Elim1Store]: detected not equals via solver [2018-04-11 16:20:08,896 INFO L700 Elim1Store]: detected not equals via solver [2018-04-11 16:20:08,898 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 3 select indices, 3 select index equivalence classes, 6 disjoint index pairs (out of 3 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 164 treesize of output 166 [2018-04-11 16:20:08,900 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 3 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 10 treesize of output 9 [2018-04-11 16:20:08,900 INFO L267 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 1 xjuncts. [2018-04-11 16:20:08,919 INFO L267 ElimStorePlain]: Start of recursive call 2: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-04-11 16:20:08,951 INFO L700 Elim1Store]: detected not equals via solver [2018-04-11 16:20:08,951 INFO L700 Elim1Store]: detected not equals via solver [2018-04-11 16:20:08,956 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 3 select indices, 3 select index equivalence classes, 5 disjoint index pairs (out of 3 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 47 treesize of output 80 [2018-04-11 16:20:08,958 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 22 treesize of output 21 [2018-04-11 16:20:08,958 INFO L267 ElimStorePlain]: Start of recursive call 5: End of recursive call: and 1 xjuncts. [2018-04-11 16:20:08,965 INFO L267 ElimStorePlain]: Start of recursive call 4: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-04-11 16:20:08,996 INFO L267 ElimStorePlain]: Start of recursive call 1: 4 dim-0 vars, 2 dim-2 vars, End of recursive call: 2 dim-0 vars, and 1 xjuncts. [2018-04-11 16:20:08,996 INFO L202 ElimStorePlain]: Needed 5 recursive calls to eliminate 6 variables, input treesize:240, output treesize:232 [2018-04-11 16:20:09,195 INFO L700 Elim1Store]: detected not equals via solver [2018-04-11 16:20:09,202 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 3 select indices, 3 select index equivalence classes, 4 disjoint index pairs (out of 3 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 83 treesize of output 122 [2018-04-11 16:20:09,204 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 28 treesize of output 27 [2018-04-11 16:20:09,205 INFO L267 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 1 xjuncts. [2018-04-11 16:20:09,215 INFO L267 ElimStorePlain]: Start of recursive call 2: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-04-11 16:20:09,265 INFO L700 Elim1Store]: detected not equals via solver [2018-04-11 16:20:09,268 INFO L700 Elim1Store]: detected not equals via solver [2018-04-11 16:20:09,269 INFO L700 Elim1Store]: detected not equals via solver [2018-04-11 16:20:09,274 INFO L700 Elim1Store]: detected not equals via solver [2018-04-11 16:20:09,275 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 4 select indices, 4 select index equivalence classes, 9 disjoint index pairs (out of 6 index pairs), introduced 4 new quantified variables, introduced 0 case distinctions, treesize of input 341 treesize of output 255 [2018-04-11 16:20:09,277 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 57 treesize of output 86 [2018-04-11 16:20:09,277 INFO L267 ElimStorePlain]: Start of recursive call 5: End of recursive call: and 1 xjuncts. [2018-04-11 16:20:09,300 INFO L267 ElimStorePlain]: Start of recursive call 4: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-04-11 16:20:09,330 INFO L267 ElimStorePlain]: Start of recursive call 1: 4 dim-0 vars, 2 dim-2 vars, End of recursive call: 4 dim-0 vars, and 1 xjuncts. [2018-04-11 16:20:09,330 INFO L202 ElimStorePlain]: Needed 5 recursive calls to eliminate 6 variables, input treesize:415, output treesize:321 [2018-04-11 16:20:09,560 INFO L700 Elim1Store]: detected not equals via solver [2018-04-11 16:20:09,560 INFO L682 Elim1Store]: detected equality via solver [2018-04-11 16:20:09,561 INFO L700 Elim1Store]: detected not equals via solver [2018-04-11 16:20:09,561 INFO L700 Elim1Store]: detected not equals via solver [2018-04-11 16:20:09,562 INFO L700 Elim1Store]: detected not equals via solver [2018-04-11 16:20:09,562 INFO L700 Elim1Store]: detected not equals via solver [2018-04-11 16:20:09,563 INFO L700 Elim1Store]: detected not equals via solver [2018-04-11 16:20:09,564 INFO L700 Elim1Store]: detected not equals via solver [2018-04-11 16:20:09,564 INFO L700 Elim1Store]: detected not equals via solver [2018-04-11 16:20:09,564 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 6 select indices, 6 select index equivalence classes, 11 disjoint index pairs (out of 15 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 67 treesize of output 194 [2018-04-11 16:20:09,565 INFO L267 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2018-04-11 16:20:09,607 INFO L267 ElimStorePlain]: Start of recursive call 1: 5 dim-0 vars, 1 dim-1 vars, End of recursive call: 5 dim-0 vars, and 1 xjuncts. [2018-04-11 16:20:09,607 INFO L202 ElimStorePlain]: Needed 2 recursive calls to eliminate 6 variables, input treesize:340, output treesize:328 [2018-04-11 16:20:09,666 INFO L700 Elim1Store]: detected not equals via solver [2018-04-11 16:20:09,667 INFO L700 Elim1Store]: detected not equals via solver [2018-04-11 16:20:09,668 INFO L700 Elim1Store]: detected not equals via solver [2018-04-11 16:20:09,668 INFO L700 Elim1Store]: detected not equals via solver [2018-04-11 16:20:09,669 INFO L700 Elim1Store]: detected not equals via solver [2018-04-11 16:20:09,671 INFO L700 Elim1Store]: detected not equals via solver [2018-04-11 16:20:09,672 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 4 select indices, 4 select index equivalence classes, 13 disjoint index pairs (out of 6 index pairs), introduced 7 new quantified variables, introduced 0 case distinctions, treesize of input 296 treesize of output 209 [2018-04-11 16:20:09,677 INFO L682 Elim1Store]: detected equality via solver [2018-04-11 16:20:09,688 INFO L477 Elim1Store]: Elim1 applied some preprocessing eliminated variable of array dimension 1, 0 stores, 4 select indices, 4 select index equivalence classes, 6 disjoint index pairs (out of 6 index pairs), introduced 4 new quantified variables, introduced 5 case distinctions, treesize of input 65 treesize of output 77 [2018-04-11 16:20:09,690 INFO L267 ElimStorePlain]: Start of recursive call 3: 10 dim-0 vars, End of recursive call: 10 dim-0 vars, and 7 xjuncts. [2018-04-11 16:20:09,723 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 7 treesize of output 1 [2018-04-11 16:20:09,723 INFO L267 ElimStorePlain]: Start of recursive call 4: End of recursive call: and 1 xjuncts. [2018-04-11 16:20:09,741 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 4 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 72 treesize of output 44 [2018-04-11 16:20:09,742 INFO L267 ElimStorePlain]: Start of recursive call 5: 1 dim-0 vars, End of recursive call: 1 dim-0 vars, and 1 xjuncts. [2018-04-11 16:20:09,759 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 4 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 66 treesize of output 38 [2018-04-11 16:20:09,760 INFO L267 ElimStorePlain]: Start of recursive call 6: 1 dim-0 vars, End of recursive call: 1 dim-0 vars, and 1 xjuncts. [2018-04-11 16:20:09,776 INFO L267 ElimStorePlain]: Start of recursive call 2: 4 dim-1 vars, End of recursive call: 2 dim-0 vars, and 1 xjuncts. [2018-04-11 16:20:09,812 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 3 select indices, 3 select index equivalence classes, 9 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 0 case distinctions, treesize of input 53 treesize of output 53 [2018-04-11 16:20:09,814 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 7 treesize of output 1 [2018-04-11 16:20:09,814 INFO L267 ElimStorePlain]: Start of recursive call 8: End of recursive call: and 1 xjuncts. [2018-04-11 16:20:09,822 INFO L682 Elim1Store]: detected equality via solver [2018-04-11 16:20:09,823 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 15 treesize of output 11 [2018-04-11 16:20:09,823 INFO L267 ElimStorePlain]: Start of recursive call 9: End of recursive call: and 1 xjuncts. [2018-04-11 16:20:09,829 INFO L682 Elim1Store]: detected equality via solver [2018-04-11 16:20:09,829 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 20 treesize of output 12 [2018-04-11 16:20:09,829 INFO L267 ElimStorePlain]: Start of recursive call 10: End of recursive call: and 1 xjuncts. [2018-04-11 16:20:09,833 INFO L267 ElimStorePlain]: Start of recursive call 7: 3 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-04-11 16:20:09,855 INFO L267 ElimStorePlain]: Start of recursive call 1: 6 dim-0 vars, 2 dim-2 vars, End of recursive call: 3 dim-0 vars, and 1 xjuncts. [2018-04-11 16:20:09,855 INFO L202 ElimStorePlain]: Needed 10 recursive calls to eliminate 8 variables, input treesize:349, output treesize:74 [2018-04-11 16:20:10,234 INFO L134 CoverageAnalysis]: Checked inductivity of 57 backedges. 0 proven. 57 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-04-11 16:20:10,234 INFO L320 seRefinementStrategy]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2018-04-11 16:20:10,234 INFO L335 seRefinementStrategy]: Number of different interpolants: perfect sequences [] imperfect sequences [30] total 30 [2018-04-11 16:20:10,234 INFO L442 AbstractCegarLoop]: Interpolant automaton has 31 states [2018-04-11 16:20:10,234 INFO L132 InterpolantAutomaton]: Constructing interpolant automaton starting with 31 interpolants. [2018-04-11 16:20:10,235 INFO L133 InterpolantAutomaton]: CoverageRelationStatistics Valid=124, Invalid=806, Unknown=0, NotChecked=0, Total=930 [2018-04-11 16:20:10,235 INFO L87 Difference]: Start difference. First operand 143 states and 155 transitions. Second operand 31 states. [2018-04-11 16:20:19,199 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-04-11 16:20:19,199 INFO L93 Difference]: Finished difference Result 171 states and 182 transitions. [2018-04-11 16:20:19,199 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 33 states. [2018-04-11 16:20:19,199 INFO L78 Accepts]: Start accepts. Automaton has 31 states. Word has length 64 [2018-04-11 16:20:19,199 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-04-11 16:20:19,200 INFO L225 Difference]: With dead ends: 171 [2018-04-11 16:20:19,200 INFO L226 Difference]: Without dead ends: 171 [2018-04-11 16:20:19,201 INFO L567 BasicCegarLoop]: 0 DeclaredPredicates, 92 GetRequests, 33 SyntacticMatches, 1 SemanticMatches, 58 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 877 ImplicationChecksByTransitivity, 7.5s TimeCoverageRelationStatistics Valid=459, Invalid=3071, Unknown=10, NotChecked=0, Total=3540 [2018-04-11 16:20:19,201 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 171 states. [2018-04-11 16:20:19,202 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 171 to 145. [2018-04-11 16:20:19,202 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 145 states. [2018-04-11 16:20:19,202 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 145 states to 145 states and 155 transitions. [2018-04-11 16:20:19,202 INFO L78 Accepts]: Start accepts. Automaton has 145 states and 155 transitions. Word has length 64 [2018-04-11 16:20:19,203 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-04-11 16:20:19,203 INFO L459 AbstractCegarLoop]: Abstraction has 145 states and 155 transitions. [2018-04-11 16:20:19,203 INFO L460 AbstractCegarLoop]: Interpolant automaton has 31 states. [2018-04-11 16:20:19,203 INFO L276 IsEmpty]: Start isEmpty. Operand 145 states and 155 transitions. [2018-04-11 16:20:19,203 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 65 [2018-04-11 16:20:19,203 INFO L347 BasicCegarLoop]: Found error trace [2018-04-11 16:20:19,203 INFO L355 BasicCegarLoop]: trace histogram [3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-04-11 16:20:19,203 INFO L408 AbstractCegarLoop]: === Iteration 30 === [mainErr5RequiresViolation, mainErr13RequiresViolation, mainErr1RequiresViolation, mainErr9RequiresViolation, mainErr0RequiresViolation, mainErr18EnsuresViolationMEMORY_LEAK, mainErr17AssertViolationMEMORY_FREE, mainErr3RequiresViolation, mainErr7RequiresViolation, mainErr11RequiresViolation, mainErr8RequiresViolation, mainErr10RequiresViolation, mainErr15RequiresViolation, mainErr2RequiresViolation, mainErr4RequiresViolation, mainErr12RequiresViolation, mainErr6RequiresViolation, mainErr16AssertViolationMEMORY_FREE, mainErr14RequiresViolation]=== [2018-04-11 16:20:19,203 INFO L82 PathProgramCache]: Analyzing trace with hash 986287508, now seen corresponding path program 3 times [2018-04-11 16:20:19,203 INFO L213 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS_NO_ARRAY [2018-04-11 16:20:19,203 INFO L68 tionRefinementEngine]: Using refinement strategy SmtInterpolRefinementStrategy [2018-04-11 16:20:19,204 INFO L119 rtionOrderModulation]: Craig nested/tree interpolation forces the following order [2018-04-11 16:20:19,204 INFO L101 rtionOrderModulation]: Changing assertion order to NOT_INCREMENTALLY [2018-04-11 16:20:19,204 INFO L119 rtionOrderModulation]: Craig nested/tree interpolation forces the following order [2018-04-11 16:20:19,209 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-04-11 16:20:19,210 WARN L137 erpolLogProxyWrapper]: Using partial proofs (cut at CNF-level). Set option :produce-proofs to true to get complete proofs. [2018-04-11 16:20:19,215 INFO L431 seRefinementStrategy]: Interpolation failed due to KNOWN_IGNORE: Unknown lemma type! [2018-04-11 16:20:19,215 INFO L308 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2018-04-11 16:20:19,215 INFO L213 ckRefinementStrategy]: Switched to mode SMTINTERPOL_FP [2018-04-11 16:20:19,216 INFO L103 rtionOrderModulation]: Keeping assertion order OUTSIDE_LOOP_FIRST2 [2018-04-11 16:20:19,234 INFO L242 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST2 issued 3 check-sat command(s) [2018-04-11 16:20:19,234 INFO L243 tOrderPrioritization]: Conjunction of SSA is unsat [2018-04-11 16:20:19,236 INFO L270 TraceCheckSpWp]: Computing forward predicates... [2018-04-11 16:20:19,249 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 6 treesize of output 5 [2018-04-11 16:20:19,249 INFO L267 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2018-04-11 16:20:19,258 INFO L267 ElimStorePlain]: Start of recursive call 1: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-04-11 16:20:19,258 INFO L202 ElimStorePlain]: Needed 2 recursive calls to eliminate 1 variables, input treesize:10, output treesize:9 [2018-04-11 16:20:19,281 INFO L700 Elim1Store]: detected not equals via solver [2018-04-11 16:20:19,282 INFO L700 Elim1Store]: detected not equals via solver [2018-04-11 16:20:19,282 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 2 select indices, 2 select index equivalence classes, 2 disjoint index pairs (out of 1 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 17 treesize of output 24 [2018-04-11 16:20:19,282 INFO L267 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2018-04-11 16:20:19,288 INFO L267 ElimStorePlain]: Start of recursive call 1: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-04-11 16:20:19,288 INFO L202 ElimStorePlain]: Needed 2 recursive calls to eliminate 1 variables, input treesize:26, output treesize:24 [2018-04-11 16:20:19,308 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 13 treesize of output 10 [2018-04-11 16:20:19,309 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 10 treesize of output 9 [2018-04-11 16:20:19,309 INFO L267 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 1 xjuncts. [2018-04-11 16:20:19,310 INFO L267 ElimStorePlain]: Start of recursive call 2: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-04-11 16:20:19,315 INFO L267 ElimStorePlain]: Start of recursive call 1: 1 dim-0 vars, 1 dim-2 vars, End of recursive call: and 1 xjuncts. [2018-04-11 16:20:19,315 INFO L202 ElimStorePlain]: Needed 3 recursive calls to eliminate 2 variables, input treesize:37, output treesize:36 [2018-04-11 16:20:19,350 INFO L700 Elim1Store]: detected not equals via solver [2018-04-11 16:20:19,351 INFO L700 Elim1Store]: detected not equals via solver [2018-04-11 16:20:19,351 INFO L700 Elim1Store]: detected not equals via solver [2018-04-11 16:20:19,352 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 3 select indices, 3 select index equivalence classes, 4 disjoint index pairs (out of 3 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 22 treesize of output 32 [2018-04-11 16:20:19,352 INFO L267 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2018-04-11 16:20:19,357 INFO L267 ElimStorePlain]: Start of recursive call 1: 1 dim-0 vars, 1 dim-1 vars, End of recursive call: 1 dim-0 vars, and 1 xjuncts. [2018-04-11 16:20:19,357 INFO L202 ElimStorePlain]: Needed 2 recursive calls to eliminate 2 variables, input treesize:50, output treesize:43 [2018-04-11 16:20:19,380 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 13 treesize of output 16 [2018-04-11 16:20:19,381 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 16 treesize of output 15 [2018-04-11 16:20:19,381 INFO L267 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 1 xjuncts. [2018-04-11 16:20:19,383 INFO L267 ElimStorePlain]: Start of recursive call 2: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-04-11 16:20:19,392 INFO L700 Elim1Store]: detected not equals via solver [2018-04-11 16:20:19,394 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 2 disjoint index pairs (out of 1 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 58 treesize of output 59 [2018-04-11 16:20:19,395 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 2 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 10 treesize of output 9 [2018-04-11 16:20:19,395 INFO L267 ElimStorePlain]: Start of recursive call 5: End of recursive call: and 1 xjuncts. [2018-04-11 16:20:19,401 INFO L267 ElimStorePlain]: Start of recursive call 4: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-04-11 16:20:19,409 INFO L267 ElimStorePlain]: Start of recursive call 1: 2 dim-0 vars, 2 dim-2 vars, End of recursive call: 1 dim-0 vars, and 1 xjuncts. [2018-04-11 16:20:19,409 INFO L202 ElimStorePlain]: Needed 5 recursive calls to eliminate 4 variables, input treesize:71, output treesize:72 [2018-04-11 16:20:19,426 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 31 treesize of output 15 [2018-04-11 16:20:19,427 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 15 treesize of output 3 [2018-04-11 16:20:19,427 INFO L267 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 1 xjuncts. [2018-04-11 16:20:19,428 INFO L267 ElimStorePlain]: Start of recursive call 2: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-04-11 16:20:19,435 INFO L267 ElimStorePlain]: Start of recursive call 1: 2 dim-0 vars, 1 dim-2 vars, End of recursive call: 2 dim-0 vars, and 1 xjuncts. [2018-04-11 16:20:19,435 INFO L202 ElimStorePlain]: Needed 3 recursive calls to eliminate 3 variables, input treesize:111, output treesize:84 [2018-04-11 16:20:19,493 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 3 select indices, 3 select index equivalence classes, 3 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 0 case distinctions, treesize of input 112 treesize of output 85 [2018-04-11 16:20:19,495 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 20 treesize of output 19 [2018-04-11 16:20:19,495 INFO L267 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 1 xjuncts. [2018-04-11 16:20:19,500 INFO L267 ElimStorePlain]: Start of recursive call 2: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-04-11 16:20:19,507 INFO L267 ElimStorePlain]: Start of recursive call 1: 2 dim-0 vars, 1 dim-2 vars, End of recursive call: 2 dim-0 vars, and 1 xjuncts. [2018-04-11 16:20:19,508 INFO L202 ElimStorePlain]: Needed 3 recursive calls to eliminate 3 variables, input treesize:118, output treesize:102 [2018-04-11 16:20:19,553 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 3 select indices, 3 select index equivalence classes, 3 disjoint index pairs (out of 3 index pairs), introduced 5 new quantified variables, introduced 0 case distinctions, treesize of input 105 treesize of output 73 [2018-04-11 16:20:19,566 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 2 select indices, 2 select index equivalence classes, 2 disjoint index pairs (out of 1 index pairs), introduced 1 new quantified variables, introduced 1 case distinctions, treesize of input 37 treesize of output 30 [2018-04-11 16:20:19,567 INFO L267 ElimStorePlain]: Start of recursive call 3: 1 dim-0 vars, End of recursive call: 1 dim-0 vars, and 2 xjuncts. [2018-04-11 16:20:19,576 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 2 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 43 treesize of output 31 [2018-04-11 16:20:19,576 INFO L267 ElimStorePlain]: Start of recursive call 4: 1 dim-0 vars, End of recursive call: 1 dim-0 vars, and 1 xjuncts. [2018-04-11 16:20:19,577 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 2 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 35 treesize of output 23 [2018-04-11 16:20:19,578 INFO L267 ElimStorePlain]: Start of recursive call 5: 1 dim-0 vars, End of recursive call: 1 dim-0 vars, and 1 xjuncts. [2018-04-11 16:20:19,586 INFO L267 ElimStorePlain]: Start of recursive call 2: 2 dim-1 vars, End of recursive call: 3 dim-0 vars, and 2 xjuncts. [2018-04-11 16:20:19,598 INFO L267 ElimStorePlain]: Start of recursive call 1: 2 dim-0 vars, 1 dim-2 vars, End of recursive call: 3 dim-0 vars, and 2 xjuncts. [2018-04-11 16:20:19,598 INFO L202 ElimStorePlain]: Needed 5 recursive calls to eliminate 3 variables, input treesize:111, output treesize:56 [2018-04-11 16:20:19,676 INFO L700 Elim1Store]: detected not equals via solver [2018-04-11 16:20:19,677 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 2 select indices, 2 select index equivalence classes, 4 disjoint index pairs (out of 1 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 17 treesize of output 34 [2018-04-11 16:20:19,677 INFO L267 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2018-04-11 16:20:19,682 INFO L267 ElimStorePlain]: Start of recursive call 1: 2 dim-0 vars, 1 dim-1 vars, End of recursive call: 2 dim-0 vars, and 1 xjuncts. [2018-04-11 16:20:19,682 INFO L202 ElimStorePlain]: Needed 2 recursive calls to eliminate 3 variables, input treesize:29, output treesize:20 [2018-04-11 16:20:19,742 INFO L134 CoverageAnalysis]: Checked inductivity of 32 backedges. 0 proven. 22 refuted. 0 times theorem prover too weak. 10 trivial. 0 not checked. [2018-04-11 16:20:19,742 INFO L320 seRefinementStrategy]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2018-04-11 16:20:19,743 INFO L335 seRefinementStrategy]: Number of different interpolants: perfect sequences [] imperfect sequences [23] total 23 [2018-04-11 16:20:19,743 INFO L442 AbstractCegarLoop]: Interpolant automaton has 24 states [2018-04-11 16:20:19,743 INFO L132 InterpolantAutomaton]: Constructing interpolant automaton starting with 24 interpolants. [2018-04-11 16:20:19,743 INFO L133 InterpolantAutomaton]: CoverageRelationStatistics Valid=54, Invalid=498, Unknown=0, NotChecked=0, Total=552 [2018-04-11 16:20:19,743 INFO L87 Difference]: Start difference. First operand 145 states and 155 transitions. Second operand 24 states. [2018-04-11 16:20:20,862 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-04-11 16:20:20,863 INFO L93 Difference]: Finished difference Result 163 states and 173 transitions. [2018-04-11 16:20:20,863 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 27 states. [2018-04-11 16:20:20,863 INFO L78 Accepts]: Start accepts. Automaton has 24 states. Word has length 64 [2018-04-11 16:20:20,863 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-04-11 16:20:20,863 INFO L225 Difference]: With dead ends: 163 [2018-04-11 16:20:20,863 INFO L226 Difference]: Without dead ends: 163 [2018-04-11 16:20:20,864 INFO L567 BasicCegarLoop]: 0 DeclaredPredicates, 87 GetRequests, 40 SyntacticMatches, 1 SemanticMatches, 46 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 395 ImplicationChecksByTransitivity, 0.9s TimeCoverageRelationStatistics Valid=289, Invalid=1967, Unknown=0, NotChecked=0, Total=2256 [2018-04-11 16:20:20,864 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 163 states. [2018-04-11 16:20:20,865 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 163 to 157. [2018-04-11 16:20:20,865 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 157 states. [2018-04-11 16:20:20,865 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 157 states to 157 states and 168 transitions. [2018-04-11 16:20:20,865 INFO L78 Accepts]: Start accepts. Automaton has 157 states and 168 transitions. Word has length 64 [2018-04-11 16:20:20,865 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-04-11 16:20:20,866 INFO L459 AbstractCegarLoop]: Abstraction has 157 states and 168 transitions. [2018-04-11 16:20:20,866 INFO L460 AbstractCegarLoop]: Interpolant automaton has 24 states. [2018-04-11 16:20:20,866 INFO L276 IsEmpty]: Start isEmpty. Operand 157 states and 168 transitions. [2018-04-11 16:20:20,866 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 65 [2018-04-11 16:20:20,866 INFO L347 BasicCegarLoop]: Found error trace [2018-04-11 16:20:20,866 INFO L355 BasicCegarLoop]: trace histogram [3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-04-11 16:20:20,866 INFO L408 AbstractCegarLoop]: === Iteration 31 === [mainErr5RequiresViolation, mainErr13RequiresViolation, mainErr1RequiresViolation, mainErr9RequiresViolation, mainErr0RequiresViolation, mainErr18EnsuresViolationMEMORY_LEAK, mainErr17AssertViolationMEMORY_FREE, mainErr3RequiresViolation, mainErr7RequiresViolation, mainErr11RequiresViolation, mainErr8RequiresViolation, mainErr10RequiresViolation, mainErr15RequiresViolation, mainErr2RequiresViolation, mainErr4RequiresViolation, mainErr12RequiresViolation, mainErr6RequiresViolation, mainErr16AssertViolationMEMORY_FREE, mainErr14RequiresViolation]=== [2018-04-11 16:20:20,866 INFO L82 PathProgramCache]: Analyzing trace with hash 986287509, now seen corresponding path program 3 times [2018-04-11 16:20:20,866 INFO L213 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS_NO_ARRAY [2018-04-11 16:20:20,866 INFO L68 tionRefinementEngine]: Using refinement strategy SmtInterpolRefinementStrategy [2018-04-11 16:20:20,867 INFO L119 rtionOrderModulation]: Craig nested/tree interpolation forces the following order [2018-04-11 16:20:20,867 INFO L101 rtionOrderModulation]: Changing assertion order to NOT_INCREMENTALLY [2018-04-11 16:20:20,867 INFO L119 rtionOrderModulation]: Craig nested/tree interpolation forces the following order [2018-04-11 16:20:20,872 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-04-11 16:20:20,873 WARN L137 erpolLogProxyWrapper]: Using partial proofs (cut at CNF-level). Set option :produce-proofs to true to get complete proofs. [2018-04-11 16:20:20,876 INFO L431 seRefinementStrategy]: Interpolation failed due to KNOWN_IGNORE: Unknown lemma type! [2018-04-11 16:20:20,877 INFO L308 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2018-04-11 16:20:20,877 INFO L213 ckRefinementStrategy]: Switched to mode SMTINTERPOL_FP [2018-04-11 16:20:20,877 INFO L103 rtionOrderModulation]: Keeping assertion order OUTSIDE_LOOP_FIRST2 [2018-04-11 16:20:20,897 INFO L242 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST2 issued 3 check-sat command(s) [2018-04-11 16:20:20,897 INFO L243 tOrderPrioritization]: Conjunction of SSA is unsat [2018-04-11 16:20:20,900 INFO L270 TraceCheckSpWp]: Computing forward predicates... [2018-04-11 16:20:20,927 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 6 treesize of output 5 [2018-04-11 16:20:20,927 INFO L267 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2018-04-11 16:20:20,930 INFO L267 ElimStorePlain]: Start of recursive call 1: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-04-11 16:20:20,930 INFO L202 ElimStorePlain]: Needed 2 recursive calls to eliminate 1 variables, input treesize:10, output treesize:9 [2018-04-11 16:20:20,959 INFO L700 Elim1Store]: detected not equals via solver [2018-04-11 16:20:20,959 INFO L700 Elim1Store]: detected not equals via solver [2018-04-11 16:20:20,960 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 2 select indices, 2 select index equivalence classes, 2 disjoint index pairs (out of 1 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 11 treesize of output 12 [2018-04-11 16:20:20,960 INFO L267 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2018-04-11 16:20:20,968 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 6 treesize of output 5 [2018-04-11 16:20:20,968 INFO L267 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 1 xjuncts. [2018-04-11 16:20:20,975 INFO L267 ElimStorePlain]: Start of recursive call 1: 2 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-04-11 16:20:20,975 INFO L202 ElimStorePlain]: Needed 3 recursive calls to eliminate 2 variables, input treesize:29, output treesize:22 [2018-04-11 16:20:20,999 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 13 treesize of output 10 [2018-04-11 16:20:21,000 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 10 treesize of output 9 [2018-04-11 16:20:21,000 INFO L267 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 1 xjuncts. [2018-04-11 16:20:21,001 INFO L267 ElimStorePlain]: Start of recursive call 2: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-04-11 16:20:21,011 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 13 treesize of output 10 [2018-04-11 16:20:21,012 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 10 treesize of output 9 [2018-04-11 16:20:21,012 INFO L267 ElimStorePlain]: Start of recursive call 5: End of recursive call: and 1 xjuncts. [2018-04-11 16:20:21,013 INFO L267 ElimStorePlain]: Start of recursive call 4: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-04-11 16:20:21,020 INFO L267 ElimStorePlain]: Start of recursive call 1: 1 dim-0 vars, 2 dim-2 vars, End of recursive call: and 1 xjuncts. [2018-04-11 16:20:21,020 INFO L202 ElimStorePlain]: Needed 5 recursive calls to eliminate 3 variables, input treesize:50, output treesize:45 [2018-04-11 16:20:21,068 INFO L700 Elim1Store]: detected not equals via solver [2018-04-11 16:20:21,068 INFO L700 Elim1Store]: detected not equals via solver [2018-04-11 16:20:21,069 INFO L700 Elim1Store]: detected not equals via solver [2018-04-11 16:20:21,069 INFO L700 Elim1Store]: detected not equals via solver [2018-04-11 16:20:21,070 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 3 select indices, 3 select index equivalence classes, 4 disjoint index pairs (out of 3 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 22 treesize of output 49 [2018-04-11 16:20:21,070 INFO L267 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2018-04-11 16:20:21,083 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 1 select indices, 1 select index equivalence classes, 3 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 18 treesize of output 27 [2018-04-11 16:20:21,084 INFO L267 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 1 xjuncts. [2018-04-11 16:20:21,096 INFO L267 ElimStorePlain]: Start of recursive call 1: 1 dim-0 vars, 2 dim-1 vars, End of recursive call: 1 dim-0 vars, and 1 xjuncts. [2018-04-11 16:20:21,096 INFO L202 ElimStorePlain]: Needed 3 recursive calls to eliminate 3 variables, input treesize:76, output treesize:89 [2018-04-11 16:20:21,138 INFO L700 Elim1Store]: detected not equals via solver [2018-04-11 16:20:21,140 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 2 disjoint index pairs (out of 1 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 65 treesize of output 66 [2018-04-11 16:20:21,142 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 2 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 10 treesize of output 9 [2018-04-11 16:20:21,142 INFO L267 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 1 xjuncts. [2018-04-11 16:20:21,148 INFO L267 ElimStorePlain]: Start of recursive call 2: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-04-11 16:20:21,164 INFO L700 Elim1Store]: detected not equals via solver [2018-04-11 16:20:21,166 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 2 disjoint index pairs (out of 1 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 23 treesize of output 30 [2018-04-11 16:20:21,167 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 16 treesize of output 15 [2018-04-11 16:20:21,167 INFO L267 ElimStorePlain]: Start of recursive call 5: End of recursive call: and 1 xjuncts. [2018-04-11 16:20:21,171 INFO L267 ElimStorePlain]: Start of recursive call 4: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-04-11 16:20:21,185 INFO L267 ElimStorePlain]: Start of recursive call 1: 2 dim-0 vars, 2 dim-2 vars, End of recursive call: 1 dim-0 vars, and 1 xjuncts. [2018-04-11 16:20:21,186 INFO L202 ElimStorePlain]: Needed 5 recursive calls to eliminate 4 variables, input treesize:117, output treesize:119 [2018-04-11 16:20:21,265 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 4 select indices, 4 select index equivalence classes, 3 disjoint index pairs (out of 6 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 39 treesize of output 40 [2018-04-11 16:20:21,265 INFO L267 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2018-04-11 16:20:21,279 INFO L267 ElimStorePlain]: Start of recursive call 1: 2 dim-0 vars, 1 dim-1 vars, End of recursive call: 2 dim-0 vars, and 1 xjuncts. [2018-04-11 16:20:21,279 INFO L202 ElimStorePlain]: Needed 2 recursive calls to eliminate 3 variables, input treesize:178, output treesize:125 [2018-04-11 16:20:21,308 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 3 select indices, 3 select index equivalence classes, 3 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 0 case distinctions, treesize of input 190 treesize of output 151 [2018-04-11 16:20:21,310 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 34 treesize of output 33 [2018-04-11 16:20:21,310 INFO L267 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 1 xjuncts. [2018-04-11 16:20:21,319 INFO L267 ElimStorePlain]: Start of recursive call 2: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-04-11 16:20:21,336 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 3 select indices, 3 select index equivalence classes, 3 disjoint index pairs (out of 3 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 107 treesize of output 140 [2018-04-11 16:20:21,338 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 34 treesize of output 33 [2018-04-11 16:20:21,338 INFO L267 ElimStorePlain]: Start of recursive call 5: End of recursive call: and 1 xjuncts. [2018-04-11 16:20:21,345 INFO L267 ElimStorePlain]: Start of recursive call 4: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-04-11 16:20:21,356 INFO L267 ElimStorePlain]: Start of recursive call 1: 2 dim-0 vars, 2 dim-2 vars, End of recursive call: 2 dim-0 vars, and 1 xjuncts. [2018-04-11 16:20:21,356 INFO L202 ElimStorePlain]: Needed 5 recursive calls to eliminate 4 variables, input treesize:205, output treesize:173 [2018-04-11 16:20:21,421 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 3 select indices, 3 select index equivalence classes, 3 disjoint index pairs (out of 3 index pairs), introduced 5 new quantified variables, introduced 0 case distinctions, treesize of input 167 treesize of output 121 [2018-04-11 16:20:21,426 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 2 select indices, 2 select index equivalence classes, 2 disjoint index pairs (out of 1 index pairs), introduced 1 new quantified variables, introduced 1 case distinctions, treesize of input 90 treesize of output 71 [2018-04-11 16:20:21,426 INFO L267 ElimStorePlain]: Start of recursive call 3: 1 dim-0 vars, End of recursive call: 1 dim-0 vars, and 2 xjuncts. [2018-04-11 16:20:21,445 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 67 treesize of output 54 [2018-04-11 16:20:21,445 INFO L267 ElimStorePlain]: Start of recursive call 4: End of recursive call: and 1 xjuncts. [2018-04-11 16:20:21,446 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 59 treesize of output 46 [2018-04-11 16:20:21,446 INFO L267 ElimStorePlain]: Start of recursive call 5: End of recursive call: and 1 xjuncts. [2018-04-11 16:20:21,462 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 2 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 71 treesize of output 55 [2018-04-11 16:20:21,462 INFO L267 ElimStorePlain]: Start of recursive call 6: 1 dim-0 vars, End of recursive call: 1 dim-0 vars, and 1 xjuncts. [2018-04-11 16:20:21,463 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 2 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 63 treesize of output 47 [2018-04-11 16:20:21,463 INFO L267 ElimStorePlain]: Start of recursive call 7: 1 dim-0 vars, End of recursive call: 1 dim-0 vars, and 1 xjuncts. [2018-04-11 16:20:21,478 INFO L267 ElimStorePlain]: Start of recursive call 2: 3 dim-1 vars, End of recursive call: 3 dim-0 vars, and 2 xjuncts. [2018-04-11 16:20:21,503 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 3 select indices, 3 select index equivalence classes, 3 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 0 case distinctions, treesize of input 73 treesize of output 63 [2018-04-11 16:20:21,504 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 11 treesize of output 1 [2018-04-11 16:20:21,504 INFO L267 ElimStorePlain]: Start of recursive call 9: End of recursive call: and 1 xjuncts. [2018-04-11 16:20:21,514 INFO L700 Elim1Store]: detected not equals via solver [2018-04-11 16:20:21,515 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 2 select indices, 2 select index equivalence classes, 1 disjoint index pairs (out of 1 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 15 treesize of output 8 [2018-04-11 16:20:21,515 INFO L267 ElimStorePlain]: Start of recursive call 10: End of recursive call: and 1 xjuncts. [2018-04-11 16:20:21,522 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 7 treesize of output 1 [2018-04-11 16:20:21,522 INFO L267 ElimStorePlain]: Start of recursive call 11: End of recursive call: and 1 xjuncts. [2018-04-11 16:20:21,526 INFO L267 ElimStorePlain]: Start of recursive call 8: 3 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-04-11 16:20:21,529 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 3 select indices, 3 select index equivalence classes, 3 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 0 case distinctions, treesize of input 65 treesize of output 55 [2018-04-11 16:20:21,531 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 11 treesize of output 1 [2018-04-11 16:20:21,531 INFO L267 ElimStorePlain]: Start of recursive call 13: End of recursive call: and 1 xjuncts. [2018-04-11 16:20:21,542 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 0 new quantified variables, introduced 1 case distinctions, treesize of input 15 treesize of output 12 [2018-04-11 16:20:21,542 INFO L267 ElimStorePlain]: Start of recursive call 14: End of recursive call: and 2 xjuncts. [2018-04-11 16:20:21,551 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 7 treesize of output 1 [2018-04-11 16:20:21,551 INFO L267 ElimStorePlain]: Start of recursive call 15: End of recursive call: and 1 xjuncts. [2018-04-11 16:20:21,557 INFO L267 ElimStorePlain]: Start of recursive call 12: 3 dim-1 vars, End of recursive call: and 2 xjuncts. [2018-04-11 16:20:21,581 INFO L267 ElimStorePlain]: Start of recursive call 1: 3 dim-0 vars, 2 dim-2 vars, End of recursive call: 4 dim-0 vars, and 3 xjuncts. [2018-04-11 16:20:21,581 INFO L202 ElimStorePlain]: Needed 15 recursive calls to eliminate 5 variables, input treesize:191, output treesize:67 [2018-04-11 16:20:21,724 INFO L134 CoverageAnalysis]: Checked inductivity of 32 backedges. 0 proven. 22 refuted. 0 times theorem prover too weak. 10 trivial. 0 not checked. [2018-04-11 16:20:21,724 INFO L320 seRefinementStrategy]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2018-04-11 16:20:21,724 INFO L335 seRefinementStrategy]: Number of different interpolants: perfect sequences [] imperfect sequences [23] total 23 [2018-04-11 16:20:21,724 INFO L442 AbstractCegarLoop]: Interpolant automaton has 24 states [2018-04-11 16:20:21,724 INFO L132 InterpolantAutomaton]: Constructing interpolant automaton starting with 24 interpolants. [2018-04-11 16:20:21,724 INFO L133 InterpolantAutomaton]: CoverageRelationStatistics Valid=61, Invalid=491, Unknown=0, NotChecked=0, Total=552 [2018-04-11 16:20:21,725 INFO L87 Difference]: Start difference. First operand 157 states and 168 transitions. Second operand 24 states. [2018-04-11 16:20:23,111 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-04-11 16:20:23,111 INFO L93 Difference]: Finished difference Result 176 states and 186 transitions. [2018-04-11 16:20:23,112 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 29 states. [2018-04-11 16:20:23,112 INFO L78 Accepts]: Start accepts. Automaton has 24 states. Word has length 64 [2018-04-11 16:20:23,112 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-04-11 16:20:23,112 INFO L225 Difference]: With dead ends: 176 [2018-04-11 16:20:23,112 INFO L226 Difference]: Without dead ends: 176 [2018-04-11 16:20:23,113 INFO L567 BasicCegarLoop]: 0 DeclaredPredicates, 88 GetRequests, 41 SyntacticMatches, 0 SemanticMatches, 47 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 449 ImplicationChecksByTransitivity, 1.3s TimeCoverageRelationStatistics Valid=327, Invalid=2025, Unknown=0, NotChecked=0, Total=2352 [2018-04-11 16:20:23,113 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 176 states. [2018-04-11 16:20:23,114 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 176 to 159. [2018-04-11 16:20:23,114 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 159 states. [2018-04-11 16:20:23,114 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 159 states to 159 states and 169 transitions. [2018-04-11 16:20:23,114 INFO L78 Accepts]: Start accepts. Automaton has 159 states and 169 transitions. Word has length 64 [2018-04-11 16:20:23,114 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-04-11 16:20:23,114 INFO L459 AbstractCegarLoop]: Abstraction has 159 states and 169 transitions. [2018-04-11 16:20:23,114 INFO L460 AbstractCegarLoop]: Interpolant automaton has 24 states. [2018-04-11 16:20:23,114 INFO L276 IsEmpty]: Start isEmpty. Operand 159 states and 169 transitions. [2018-04-11 16:20:23,115 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 70 [2018-04-11 16:20:23,115 INFO L347 BasicCegarLoop]: Found error trace [2018-04-11 16:20:23,115 INFO L355 BasicCegarLoop]: trace histogram [5, 5, 5, 4, 4, 4, 4, 4, 4, 4, 4, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-04-11 16:20:23,115 INFO L408 AbstractCegarLoop]: === Iteration 32 === [mainErr5RequiresViolation, mainErr13RequiresViolation, mainErr1RequiresViolation, mainErr9RequiresViolation, mainErr0RequiresViolation, mainErr18EnsuresViolationMEMORY_LEAK, mainErr17AssertViolationMEMORY_FREE, mainErr3RequiresViolation, mainErr7RequiresViolation, mainErr11RequiresViolation, mainErr8RequiresViolation, mainErr10RequiresViolation, mainErr15RequiresViolation, mainErr2RequiresViolation, mainErr4RequiresViolation, mainErr12RequiresViolation, mainErr6RequiresViolation, mainErr16AssertViolationMEMORY_FREE, mainErr14RequiresViolation]=== [2018-04-11 16:20:23,115 INFO L82 PathProgramCache]: Analyzing trace with hash 1415330847, now seen corresponding path program 8 times [2018-04-11 16:20:23,115 INFO L213 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS_NO_ARRAY [2018-04-11 16:20:23,115 INFO L68 tionRefinementEngine]: Using refinement strategy SmtInterpolRefinementStrategy [2018-04-11 16:20:23,115 INFO L119 rtionOrderModulation]: Craig nested/tree interpolation forces the following order [2018-04-11 16:20:23,115 INFO L101 rtionOrderModulation]: Changing assertion order to NOT_INCREMENTALLY [2018-04-11 16:20:23,115 INFO L119 rtionOrderModulation]: Craig nested/tree interpolation forces the following order [2018-04-11 16:20:23,123 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-04-11 16:20:23,124 WARN L137 erpolLogProxyWrapper]: Using partial proofs (cut at CNF-level). Set option :produce-proofs to true to get complete proofs. [2018-04-11 16:20:23,126 INFO L431 seRefinementStrategy]: Interpolation failed due to KNOWN_IGNORE: Unknown lemma type! [2018-04-11 16:20:23,126 INFO L308 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2018-04-11 16:20:23,126 INFO L213 ckRefinementStrategy]: Switched to mode SMTINTERPOL_FP [2018-04-11 16:20:23,127 INFO L103 rtionOrderModulation]: Keeping assertion order OUTSIDE_LOOP_FIRST1 [2018-04-11 16:20:23,151 INFO L242 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2018-04-11 16:20:23,152 INFO L243 tOrderPrioritization]: Conjunction of SSA is unsat [2018-04-11 16:20:23,154 INFO L270 TraceCheckSpWp]: Computing forward predicates... [2018-04-11 16:20:23,156 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 6 treesize of output 5 [2018-04-11 16:20:23,156 INFO L267 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2018-04-11 16:20:23,159 INFO L267 ElimStorePlain]: Start of recursive call 1: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-04-11 16:20:23,159 INFO L202 ElimStorePlain]: Needed 2 recursive calls to eliminate 1 variables, input treesize:10, output treesize:9 [2018-04-11 16:20:23,181 INFO L700 Elim1Store]: detected not equals via solver [2018-04-11 16:20:23,182 INFO L700 Elim1Store]: detected not equals via solver [2018-04-11 16:20:23,182 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 2 select indices, 2 select index equivalence classes, 2 disjoint index pairs (out of 1 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 17 treesize of output 24 [2018-04-11 16:20:23,183 INFO L267 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2018-04-11 16:20:23,193 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 12 treesize of output 15 [2018-04-11 16:20:23,193 INFO L267 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 1 xjuncts. [2018-04-11 16:20:23,210 INFO L267 ElimStorePlain]: Start of recursive call 1: 2 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-04-11 16:20:23,211 INFO L202 ElimStorePlain]: Needed 3 recursive calls to eliminate 2 variables, input treesize:40, output treesize:37 [2018-04-11 16:20:23,264 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 2 select indices, 2 select index equivalence classes, 1 disjoint index pairs (out of 1 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 18 treesize of output 8 [2018-04-11 16:20:23,264 INFO L267 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2018-04-11 16:20:23,280 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 13 treesize of output 10 [2018-04-11 16:20:23,282 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 10 treesize of output 9 [2018-04-11 16:20:23,282 INFO L267 ElimStorePlain]: Start of recursive call 4: End of recursive call: and 1 xjuncts. [2018-04-11 16:20:23,283 INFO L267 ElimStorePlain]: Start of recursive call 3: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-04-11 16:20:23,292 INFO L267 ElimStorePlain]: Start of recursive call 1: 1 dim-0 vars, 1 dim-1 vars, 1 dim-2 vars, End of recursive call: and 1 xjuncts. [2018-04-11 16:20:23,292 INFO L202 ElimStorePlain]: Needed 4 recursive calls to eliminate 3 variables, input treesize:57, output treesize:42 [2018-04-11 16:20:23,341 INFO L700 Elim1Store]: detected not equals via solver [2018-04-11 16:20:23,342 INFO L700 Elim1Store]: detected not equals via solver [2018-04-11 16:20:23,343 INFO L700 Elim1Store]: detected not equals via solver [2018-04-11 16:20:23,343 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 3 select indices, 3 select index equivalence classes, 4 disjoint index pairs (out of 3 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 28 treesize of output 61 [2018-04-11 16:20:23,343 INFO L267 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2018-04-11 16:20:23,353 INFO L267 ElimStorePlain]: Start of recursive call 1: 1 dim-0 vars, 1 dim-1 vars, End of recursive call: 1 dim-0 vars, and 1 xjuncts. [2018-04-11 16:20:23,353 INFO L202 ElimStorePlain]: Needed 2 recursive calls to eliminate 2 variables, input treesize:59, output treesize:67 [2018-04-11 16:20:23,385 INFO L700 Elim1Store]: detected not equals via solver [2018-04-11 16:20:23,387 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 2 disjoint index pairs (out of 1 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 54 treesize of output 55 [2018-04-11 16:20:23,388 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 2 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 10 treesize of output 9 [2018-04-11 16:20:23,388 INFO L267 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 1 xjuncts. [2018-04-11 16:20:23,393 INFO L267 ElimStorePlain]: Start of recursive call 2: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-04-11 16:20:23,403 INFO L267 ElimStorePlain]: Start of recursive call 1: 2 dim-0 vars, 1 dim-2 vars, End of recursive call: 1 dim-0 vars, and 1 xjuncts. [2018-04-11 16:20:23,403 INFO L202 ElimStorePlain]: Needed 3 recursive calls to eliminate 3 variables, input treesize:85, output treesize:79 [2018-04-11 16:20:23,457 INFO L700 Elim1Store]: detected not equals via solver [2018-04-11 16:20:23,458 INFO L700 Elim1Store]: detected not equals via solver [2018-04-11 16:20:23,458 INFO L700 Elim1Store]: detected not equals via solver [2018-04-11 16:20:23,459 INFO L700 Elim1Store]: detected not equals via solver [2018-04-11 16:20:23,459 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 4 select indices, 4 select index equivalence classes, 7 disjoint index pairs (out of 6 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 45 treesize of output 138 [2018-04-11 16:20:23,460 INFO L267 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2018-04-11 16:20:23,475 INFO L267 ElimStorePlain]: Start of recursive call 1: 2 dim-0 vars, 1 dim-1 vars, End of recursive call: 2 dim-0 vars, and 1 xjuncts. [2018-04-11 16:20:23,475 INFO L202 ElimStorePlain]: Needed 2 recursive calls to eliminate 3 variables, input treesize:120, output treesize:144 [2018-04-11 16:20:23,520 INFO L700 Elim1Store]: detected not equals via solver [2018-04-11 16:20:23,520 INFO L700 Elim1Store]: detected not equals via solver [2018-04-11 16:20:23,524 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 3 select indices, 3 select index equivalence classes, 5 disjoint index pairs (out of 3 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 131 treesize of output 121 [2018-04-11 16:20:23,525 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 3 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 10 treesize of output 9 [2018-04-11 16:20:23,526 INFO L267 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 1 xjuncts. [2018-04-11 16:20:23,535 INFO L267 ElimStorePlain]: Start of recursive call 2: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-04-11 16:20:23,550 INFO L267 ElimStorePlain]: Start of recursive call 1: 3 dim-0 vars, 1 dim-2 vars, End of recursive call: 2 dim-0 vars, and 1 xjuncts. [2018-04-11 16:20:23,550 INFO L202 ElimStorePlain]: Needed 3 recursive calls to eliminate 4 variables, input treesize:157, output treesize:156 [2018-04-11 16:20:23,627 INFO L700 Elim1Store]: detected not equals via solver [2018-04-11 16:20:23,628 INFO L700 Elim1Store]: detected not equals via solver [2018-04-11 16:20:23,629 INFO L700 Elim1Store]: detected not equals via solver [2018-04-11 16:20:23,629 INFO L700 Elim1Store]: detected not equals via solver [2018-04-11 16:20:23,630 INFO L700 Elim1Store]: detected not equals via solver [2018-04-11 16:20:23,630 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 5 select indices, 5 select index equivalence classes, 11 disjoint index pairs (out of 10 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 68 treesize of output 273 [2018-04-11 16:20:23,631 INFO L267 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2018-04-11 16:20:23,652 INFO L267 ElimStorePlain]: Start of recursive call 1: 3 dim-0 vars, 1 dim-1 vars, End of recursive call: 3 dim-0 vars, and 1 xjuncts. [2018-04-11 16:20:23,652 INFO L202 ElimStorePlain]: Needed 2 recursive calls to eliminate 4 variables, input treesize:233, output treesize:279 [2018-04-11 16:20:23,714 INFO L700 Elim1Store]: detected not equals via solver [2018-04-11 16:20:23,714 INFO L700 Elim1Store]: detected not equals via solver [2018-04-11 16:20:23,715 INFO L700 Elim1Store]: detected not equals via solver [2018-04-11 16:20:23,721 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 4 select indices, 4 select index equivalence classes, 9 disjoint index pairs (out of 6 index pairs), introduced 3 new quantified variables, introduced 0 case distinctions, treesize of input 266 treesize of output 203 [2018-04-11 16:20:23,723 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 4 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 10 treesize of output 9 [2018-04-11 16:20:23,723 INFO L267 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 1 xjuncts. [2018-04-11 16:20:23,741 INFO L267 ElimStorePlain]: Start of recursive call 2: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-04-11 16:20:23,764 INFO L267 ElimStorePlain]: Start of recursive call 1: 4 dim-0 vars, 1 dim-2 vars, End of recursive call: 3 dim-0 vars, and 1 xjuncts. [2018-04-11 16:20:23,764 INFO L202 ElimStorePlain]: Needed 3 recursive calls to eliminate 5 variables, input treesize:292, output treesize:291 [2018-04-11 16:20:23,885 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 5 select indices, 5 select index equivalence classes, 10 disjoint index pairs (out of 10 index pairs), introduced 5 new quantified variables, introduced 0 case distinctions, treesize of input 422 treesize of output 227 [2018-04-11 16:20:23,887 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 34 treesize of output 33 [2018-04-11 16:20:23,887 INFO L267 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 1 xjuncts. [2018-04-11 16:20:23,907 INFO L267 ElimStorePlain]: Start of recursive call 2: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-04-11 16:20:23,931 INFO L267 ElimStorePlain]: Start of recursive call 1: 5 dim-0 vars, 1 dim-2 vars, End of recursive call: 5 dim-0 vars, and 1 xjuncts. [2018-04-11 16:20:23,931 INFO L202 ElimStorePlain]: Needed 3 recursive calls to eliminate 6 variables, input treesize:436, output treesize:408 [2018-04-11 16:20:24,031 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 5 select indices, 5 select index equivalence classes, 10 disjoint index pairs (out of 10 index pairs), introduced 9 new quantified variables, introduced 0 case distinctions, treesize of input 401 treesize of output 181 [2018-04-11 16:20:24,033 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 4 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 54 treesize of output 34 [2018-04-11 16:20:24,034 INFO L267 ElimStorePlain]: Start of recursive call 3: 1 dim-0 vars, End of recursive call: 1 dim-0 vars, and 1 xjuncts. [2018-04-11 16:20:24,051 INFO L682 Elim1Store]: detected equality via solver [2018-04-11 16:20:24,052 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 2 select indices, 2 select index equivalence classes, 4 disjoint index pairs (out of 1 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 55 treesize of output 35 [2018-04-11 16:20:24,052 INFO L267 ElimStorePlain]: Start of recursive call 4: End of recursive call: and 1 xjuncts. [2018-04-11 16:20:24,067 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 4 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 46 treesize of output 26 [2018-04-11 16:20:24,068 INFO L267 ElimStorePlain]: Start of recursive call 5: 1 dim-0 vars, End of recursive call: 1 dim-0 vars, and 1 xjuncts. [2018-04-11 16:20:24,082 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 7 treesize of output 1 [2018-04-11 16:20:24,083 INFO L267 ElimStorePlain]: Start of recursive call 6: End of recursive call: and 1 xjuncts. [2018-04-11 16:20:24,094 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 4 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 42 treesize of output 22 [2018-04-11 16:20:24,095 INFO L267 ElimStorePlain]: Start of recursive call 7: 1 dim-0 vars, End of recursive call: 1 dim-0 vars, and 1 xjuncts. [2018-04-11 16:20:24,105 INFO L267 ElimStorePlain]: Start of recursive call 2: 5 dim-1 vars, End of recursive call: 3 dim-0 vars, and 1 xjuncts. [2018-04-11 16:20:24,118 INFO L267 ElimStorePlain]: Start of recursive call 1: 6 dim-0 vars, 1 dim-2 vars, End of recursive call: 4 dim-0 vars, and 1 xjuncts. [2018-04-11 16:20:24,119 INFO L202 ElimStorePlain]: Needed 7 recursive calls to eliminate 7 variables, input treesize:412, output treesize:66 [2018-04-11 16:20:24,249 INFO L134 CoverageAnalysis]: Checked inductivity of 85 backedges. 0 proven. 85 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-04-11 16:20:24,249 INFO L320 seRefinementStrategy]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2018-04-11 16:20:24,249 INFO L335 seRefinementStrategy]: Number of different interpolants: perfect sequences [] imperfect sequences [29] total 29 [2018-04-11 16:20:24,249 INFO L442 AbstractCegarLoop]: Interpolant automaton has 30 states [2018-04-11 16:20:24,249 INFO L132 InterpolantAutomaton]: Constructing interpolant automaton starting with 30 interpolants. [2018-04-11 16:20:24,250 INFO L133 InterpolantAutomaton]: CoverageRelationStatistics Valid=80, Invalid=790, Unknown=0, NotChecked=0, Total=870 [2018-04-11 16:20:24,250 INFO L87 Difference]: Start difference. First operand 159 states and 169 transitions. Second operand 30 states. [2018-04-11 16:20:30,091 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-04-11 16:20:30,091 INFO L93 Difference]: Finished difference Result 207 states and 220 transitions. [2018-04-11 16:20:30,127 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 33 states. [2018-04-11 16:20:30,128 INFO L78 Accepts]: Start accepts. Automaton has 30 states. Word has length 69 [2018-04-11 16:20:30,128 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-04-11 16:20:30,128 INFO L225 Difference]: With dead ends: 207 [2018-04-11 16:20:30,128 INFO L226 Difference]: Without dead ends: 207 [2018-04-11 16:20:30,129 INFO L567 BasicCegarLoop]: 0 DeclaredPredicates, 98 GetRequests, 39 SyntacticMatches, 1 SemanticMatches, 58 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 835 ImplicationChecksByTransitivity, 4.9s TimeCoverageRelationStatistics Valid=394, Invalid=3145, Unknown=1, NotChecked=0, Total=3540 [2018-04-11 16:20:30,129 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 207 states. [2018-04-11 16:20:30,130 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 207 to 182. [2018-04-11 16:20:30,130 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 182 states. [2018-04-11 16:20:30,131 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 182 states to 182 states and 195 transitions. [2018-04-11 16:20:30,131 INFO L78 Accepts]: Start accepts. Automaton has 182 states and 195 transitions. Word has length 69 [2018-04-11 16:20:30,131 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-04-11 16:20:30,131 INFO L459 AbstractCegarLoop]: Abstraction has 182 states and 195 transitions. [2018-04-11 16:20:30,131 INFO L460 AbstractCegarLoop]: Interpolant automaton has 30 states. [2018-04-11 16:20:30,131 INFO L276 IsEmpty]: Start isEmpty. Operand 182 states and 195 transitions. [2018-04-11 16:20:30,131 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 70 [2018-04-11 16:20:30,131 INFO L347 BasicCegarLoop]: Found error trace [2018-04-11 16:20:30,131 INFO L355 BasicCegarLoop]: trace histogram [5, 5, 5, 4, 4, 4, 4, 4, 4, 4, 4, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-04-11 16:20:30,131 INFO L408 AbstractCegarLoop]: === Iteration 33 === [mainErr5RequiresViolation, mainErr13RequiresViolation, mainErr1RequiresViolation, mainErr9RequiresViolation, mainErr0RequiresViolation, mainErr18EnsuresViolationMEMORY_LEAK, mainErr17AssertViolationMEMORY_FREE, mainErr3RequiresViolation, mainErr7RequiresViolation, mainErr11RequiresViolation, mainErr8RequiresViolation, mainErr10RequiresViolation, mainErr15RequiresViolation, mainErr2RequiresViolation, mainErr4RequiresViolation, mainErr12RequiresViolation, mainErr6RequiresViolation, mainErr16AssertViolationMEMORY_FREE, mainErr14RequiresViolation]=== [2018-04-11 16:20:30,131 INFO L82 PathProgramCache]: Analyzing trace with hash 1415330848, now seen corresponding path program 6 times [2018-04-11 16:20:30,131 INFO L213 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS_NO_ARRAY [2018-04-11 16:20:30,132 INFO L68 tionRefinementEngine]: Using refinement strategy SmtInterpolRefinementStrategy [2018-04-11 16:20:30,132 INFO L119 rtionOrderModulation]: Craig nested/tree interpolation forces the following order [2018-04-11 16:20:30,132 INFO L101 rtionOrderModulation]: Changing assertion order to NOT_INCREMENTALLY [2018-04-11 16:20:30,132 INFO L119 rtionOrderModulation]: Craig nested/tree interpolation forces the following order [2018-04-11 16:20:30,144 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-04-11 16:20:30,144 WARN L137 erpolLogProxyWrapper]: Using partial proofs (cut at CNF-level). Set option :produce-proofs to true to get complete proofs. [2018-04-11 16:20:30,149 INFO L431 seRefinementStrategy]: Interpolation failed due to KNOWN_IGNORE: Unknown lemma type! [2018-04-11 16:20:30,150 INFO L308 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2018-04-11 16:20:30,150 INFO L213 ckRefinementStrategy]: Switched to mode SMTINTERPOL_FP [2018-04-11 16:20:30,150 INFO L103 rtionOrderModulation]: Keeping assertion order MIX_INSIDE_OUTSIDE [2018-04-11 16:20:30,209 INFO L242 tOrderPrioritization]: Assert order MIX_INSIDE_OUTSIDE issued 5 check-sat command(s) [2018-04-11 16:20:30,210 INFO L243 tOrderPrioritization]: Conjunction of SSA is unsat [2018-04-11 16:20:30,214 INFO L270 TraceCheckSpWp]: Computing forward predicates... [2018-04-11 16:20:30,228 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 6 treesize of output 5 [2018-04-11 16:20:30,228 INFO L267 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2018-04-11 16:20:30,231 INFO L267 ElimStorePlain]: Start of recursive call 1: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-04-11 16:20:30,231 INFO L202 ElimStorePlain]: Needed 2 recursive calls to eliminate 1 variables, input treesize:10, output treesize:9 [2018-04-11 16:20:30,257 INFO L700 Elim1Store]: detected not equals via solver [2018-04-11 16:20:30,258 INFO L700 Elim1Store]: detected not equals via solver [2018-04-11 16:20:30,258 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 2 select indices, 2 select index equivalence classes, 2 disjoint index pairs (out of 1 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 17 treesize of output 21 [2018-04-11 16:20:30,258 INFO L267 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2018-04-11 16:20:30,267 INFO L267 ElimStorePlain]: Start of recursive call 1: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-04-11 16:20:30,267 INFO L202 ElimStorePlain]: Needed 2 recursive calls to eliminate 1 variables, input treesize:32, output treesize:30 [2018-04-11 16:20:30,295 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 13 treesize of output 10 [2018-04-11 16:20:30,297 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 10 treesize of output 9 [2018-04-11 16:20:30,297 INFO L267 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 1 xjuncts. [2018-04-11 16:20:30,299 INFO L267 ElimStorePlain]: Start of recursive call 2: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-04-11 16:20:30,312 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 13 treesize of output 10 [2018-04-11 16:20:30,314 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 10 treesize of output 9 [2018-04-11 16:20:30,314 INFO L267 ElimStorePlain]: Start of recursive call 5: End of recursive call: and 1 xjuncts. [2018-04-11 16:20:30,315 INFO L267 ElimStorePlain]: Start of recursive call 4: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-04-11 16:20:30,325 INFO L267 ElimStorePlain]: Start of recursive call 1: 1 dim-0 vars, 2 dim-2 vars, End of recursive call: and 1 xjuncts. [2018-04-11 16:20:30,325 INFO L202 ElimStorePlain]: Needed 5 recursive calls to eliminate 3 variables, input treesize:53, output treesize:48 [2018-04-11 16:20:30,412 INFO L700 Elim1Store]: detected not equals via solver [2018-04-11 16:20:30,412 INFO L700 Elim1Store]: detected not equals via solver [2018-04-11 16:20:30,413 INFO L700 Elim1Store]: detected not equals via solver [2018-04-11 16:20:30,413 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 3 select indices, 3 select index equivalence classes, 4 disjoint index pairs (out of 3 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 22 treesize of output 25 [2018-04-11 16:20:30,413 INFO L267 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2018-04-11 16:20:30,423 INFO L267 ElimStorePlain]: Start of recursive call 1: 1 dim-0 vars, 1 dim-1 vars, End of recursive call: 1 dim-0 vars, and 1 xjuncts. [2018-04-11 16:20:30,423 INFO L202 ElimStorePlain]: Needed 2 recursive calls to eliminate 2 variables, input treesize:68, output treesize:61 [2018-04-11 16:20:30,452 INFO L700 Elim1Store]: detected not equals via solver [2018-04-11 16:20:30,454 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 2 disjoint index pairs (out of 1 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 43 treesize of output 44 [2018-04-11 16:20:30,456 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 2 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 10 treesize of output 9 [2018-04-11 16:20:30,456 INFO L267 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 1 xjuncts. [2018-04-11 16:20:30,461 INFO L267 ElimStorePlain]: Start of recursive call 2: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-04-11 16:20:30,477 INFO L700 Elim1Store]: detected not equals via solver [2018-04-11 16:20:30,479 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 2 disjoint index pairs (out of 1 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 32 treesize of output 39 [2018-04-11 16:20:30,481 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 16 treesize of output 15 [2018-04-11 16:20:30,481 INFO L267 ElimStorePlain]: Start of recursive call 5: End of recursive call: and 1 xjuncts. [2018-04-11 16:20:30,485 INFO L267 ElimStorePlain]: Start of recursive call 4: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-04-11 16:20:30,499 INFO L267 ElimStorePlain]: Start of recursive call 1: 3 dim-0 vars, 2 dim-2 vars, End of recursive call: 1 dim-0 vars, and 1 xjuncts. [2018-04-11 16:20:30,499 INFO L202 ElimStorePlain]: Needed 5 recursive calls to eliminate 5 variables, input treesize:99, output treesize:85 [2018-04-11 16:20:30,562 INFO L700 Elim1Store]: detected not equals via solver [2018-04-11 16:20:30,563 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 1 select indices, 1 select index equivalence classes, 2 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 20 treesize of output 29 [2018-04-11 16:20:30,563 INFO L267 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2018-04-11 16:20:30,580 INFO L700 Elim1Store]: detected not equals via solver [2018-04-11 16:20:30,580 INFO L700 Elim1Store]: detected not equals via solver [2018-04-11 16:20:30,581 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 2 select indices, 2 select index equivalence classes, 3 disjoint index pairs (out of 1 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 17 treesize of output 18 [2018-04-11 16:20:30,581 INFO L267 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 1 xjuncts. [2018-04-11 16:20:30,594 INFO L267 ElimStorePlain]: Start of recursive call 1: 3 dim-0 vars, 2 dim-1 vars, End of recursive call: 3 dim-0 vars, and 1 xjuncts. [2018-04-11 16:20:30,595 INFO L202 ElimStorePlain]: Needed 3 recursive calls to eliminate 5 variables, input treesize:129, output treesize:122 [2018-04-11 16:20:30,644 INFO L700 Elim1Store]: detected not equals via solver [2018-04-11 16:20:30,645 INFO L700 Elim1Store]: detected not equals via solver [2018-04-11 16:20:30,650 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 3 select indices, 3 select index equivalence classes, 4 disjoint index pairs (out of 3 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 100 treesize of output 102 [2018-04-11 16:20:30,651 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 10 treesize of output 9 [2018-04-11 16:20:30,651 INFO L267 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 1 xjuncts. [2018-04-11 16:20:30,661 INFO L267 ElimStorePlain]: Start of recursive call 2: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-04-11 16:20:30,679 INFO L700 Elim1Store]: detected not equals via solver [2018-04-11 16:20:30,682 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 2 disjoint index pairs (out of 1 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 32 treesize of output 45 [2018-04-11 16:20:30,683 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 22 treesize of output 21 [2018-04-11 16:20:30,683 INFO L267 ElimStorePlain]: Start of recursive call 5: End of recursive call: and 1 xjuncts. [2018-04-11 16:20:30,687 INFO L267 ElimStorePlain]: Start of recursive call 4: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-04-11 16:20:30,704 INFO L267 ElimStorePlain]: Start of recursive call 1: 5 dim-0 vars, 2 dim-2 vars, End of recursive call: 3 dim-0 vars, and 1 xjuncts. [2018-04-11 16:20:30,704 INFO L202 ElimStorePlain]: Needed 5 recursive calls to eliminate 7 variables, input treesize:148, output treesize:128 [2018-04-11 16:20:30,851 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 2 select indices, 2 select index equivalence classes, 2 disjoint index pairs (out of 1 index pairs), introduced 1 new quantified variables, introduced 2 case distinctions, treesize of input 25 treesize of output 47 [2018-04-11 16:20:30,851 INFO L267 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 2 xjuncts. [2018-04-11 16:20:30,883 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 5 treesize of output 1 [2018-04-11 16:20:30,884 INFO L267 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 1 xjuncts. [2018-04-11 16:20:30,911 INFO L267 ElimStorePlain]: Start of recursive call 1: 5 dim-0 vars, 2 dim-1 vars, End of recursive call: 9 dim-0 vars, and 2 xjuncts. [2018-04-11 16:20:30,912 INFO L202 ElimStorePlain]: Needed 3 recursive calls to eliminate 7 variables, input treesize:163, output treesize:308 [2018-04-11 16:20:31,121 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 3 select indices, 3 select index equivalence classes, 2 disjoint index pairs (out of 3 index pairs), introduced 4 new quantified variables, introduced 6 case distinctions, treesize of input 175 treesize of output 173 [2018-04-11 16:20:31,125 WARN L307 Elim1Store]: Array PQE input equivalent to false [2018-04-11 16:20:31,126 INFO L267 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 1 xjuncts. [2018-04-11 16:20:31,320 INFO L267 ElimStorePlain]: Start of recursive call 4: 1 dim-0 vars, End of recursive call: 1 dim-0 vars, and 1 xjuncts. [2018-04-11 16:20:31,495 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 172 treesize of output 171 [2018-04-11 16:20:31,495 INFO L267 ElimStorePlain]: Start of recursive call 5: End of recursive call: and 1 xjuncts. [2018-04-11 16:20:31,622 INFO L682 Elim1Store]: detected equality via solver [2018-04-11 16:20:31,623 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 1 select indices, 1 select index equivalence classes, 2 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 159 treesize of output 133 [2018-04-11 16:20:31,624 INFO L267 ElimStorePlain]: Start of recursive call 6: 1 dim-0 vars, End of recursive call: 1 dim-0 vars, and 1 xjuncts. [2018-04-11 16:20:31,758 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 1 select indices, 1 select index equivalence classes, 2 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 2 case distinctions, treesize of input 149 treesize of output 149 [2018-04-11 16:20:31,759 INFO L267 ElimStorePlain]: Start of recursive call 7: 1 dim-0 vars, End of recursive call: 1 dim-0 vars, and 2 xjuncts. [2018-04-11 16:20:31,889 INFO L267 ElimStorePlain]: Start of recursive call 2: 5 dim-1 vars, End of recursive call: 3 dim-0 vars, and 4 xjuncts. [2018-04-11 16:20:32,074 INFO L700 Elim1Store]: detected not equals via solver [2018-04-11 16:20:32,079 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 3 select indices, 3 select index equivalence classes, 3 disjoint index pairs (out of 3 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 130 treesize of output 141 [2018-04-11 16:20:32,081 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 16 treesize of output 15 [2018-04-11 16:20:32,081 INFO L267 ElimStorePlain]: Start of recursive call 9: End of recursive call: and 1 xjuncts. [2018-04-11 16:20:32,116 INFO L267 ElimStorePlain]: Start of recursive call 8: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-04-11 16:20:32,119 INFO L682 Elim1Store]: detected equality via solver [2018-04-11 16:20:32,121 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 3 select indices, 3 select index equivalence classes, 3 disjoint index pairs (out of 3 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 126 treesize of output 136 [2018-04-11 16:20:32,123 INFO L682 Elim1Store]: detected equality via solver [2018-04-11 16:20:32,123 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 32 treesize of output 20 [2018-04-11 16:20:32,123 INFO L267 ElimStorePlain]: Start of recursive call 11: End of recursive call: and 1 xjuncts. [2018-04-11 16:20:32,142 INFO L267 ElimStorePlain]: Start of recursive call 10: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-04-11 16:20:32,145 INFO L682 Elim1Store]: detected equality via solver [2018-04-11 16:20:32,152 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 3 select indices, 3 select index equivalence classes, 3 disjoint index pairs (out of 3 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 176 treesize of output 192 [2018-04-11 16:20:32,154 INFO L682 Elim1Store]: detected equality via solver [2018-04-11 16:20:32,155 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 32 treesize of output 20 [2018-04-11 16:20:32,155 INFO L267 ElimStorePlain]: Start of recursive call 13: End of recursive call: and 1 xjuncts. [2018-04-11 16:20:32,176 INFO L267 ElimStorePlain]: Start of recursive call 12: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-04-11 16:20:32,201 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 3 select indices, 3 select index equivalence classes, 2 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 6 case distinctions, treesize of input 171 treesize of output 202 [2018-04-11 16:20:32,204 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 188 treesize of output 187 [2018-04-11 16:20:32,205 INFO L267 ElimStorePlain]: Start of recursive call 15: End of recursive call: and 1 xjuncts. [2018-04-11 16:20:32,318 INFO L267 ElimStorePlain]: Start of recursive call 14: 2 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-04-11 16:20:32,502 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 3 select indices, 3 select index equivalence classes, 2 disjoint index pairs (out of 3 index pairs), introduced 4 new quantified variables, introduced 6 case distinctions, treesize of input 173 treesize of output 171 [2018-04-11 16:20:32,505 INFO L267 ElimStorePlain]: Start of recursive call 17: 1 dim-0 vars, End of recursive call: 1 dim-0 vars, and 1 xjuncts. [2018-04-11 16:20:32,719 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 170 treesize of output 169 [2018-04-11 16:20:32,719 INFO L267 ElimStorePlain]: Start of recursive call 18: End of recursive call: and 1 xjuncts. [2018-04-11 16:20:32,965 INFO L682 Elim1Store]: detected equality via solver [2018-04-11 16:20:32,966 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 1 select indices, 1 select index equivalence classes, 2 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 157 treesize of output 131 [2018-04-11 16:20:32,967 INFO L267 ElimStorePlain]: Start of recursive call 19: 1 dim-0 vars, End of recursive call: 1 dim-0 vars, and 1 xjuncts. [2018-04-11 16:20:33,091 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 1 select indices, 1 select index equivalence classes, 2 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 2 case distinctions, treesize of input 147 treesize of output 147 [2018-04-11 16:20:33,092 INFO L267 ElimStorePlain]: Start of recursive call 20: 1 dim-0 vars, End of recursive call: 1 dim-0 vars, and 2 xjuncts. [2018-04-11 16:20:33,209 INFO L267 ElimStorePlain]: Start of recursive call 16: 5 dim-1 vars, End of recursive call: 3 dim-0 vars, and 4 xjuncts. [2018-04-11 16:20:33,487 INFO L682 Elim1Store]: detected equality via solver [2018-04-11 16:20:33,488 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 3 select indices, 3 select index equivalence classes, 3 disjoint index pairs (out of 3 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 125 treesize of output 135 [2018-04-11 16:20:33,490 INFO L682 Elim1Store]: detected equality via solver [2018-04-11 16:20:33,490 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 32 treesize of output 20 [2018-04-11 16:20:33,490 INFO L267 ElimStorePlain]: Start of recursive call 22: End of recursive call: and 1 xjuncts. [2018-04-11 16:20:33,506 INFO L267 ElimStorePlain]: Start of recursive call 21: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-04-11 16:20:33,509 INFO L682 Elim1Store]: detected equality via solver [2018-04-11 16:20:33,512 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 3 select indices, 3 select index equivalence classes, 3 disjoint index pairs (out of 3 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 160 treesize of output 170 [2018-04-11 16:20:33,514 INFO L682 Elim1Store]: detected equality via solver [2018-04-11 16:20:33,515 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 32 treesize of output 20 [2018-04-11 16:20:33,515 INFO L267 ElimStorePlain]: Start of recursive call 24: End of recursive call: and 1 xjuncts. [2018-04-11 16:20:33,540 INFO L267 ElimStorePlain]: Start of recursive call 23: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-04-11 16:20:33,542 INFO L700 Elim1Store]: detected not equals via solver [2018-04-11 16:20:33,546 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 3 select indices, 3 select index equivalence classes, 3 disjoint index pairs (out of 3 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 128 treesize of output 139 [2018-04-11 16:20:33,548 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 16 treesize of output 15 [2018-04-11 16:20:33,548 INFO L267 ElimStorePlain]: Start of recursive call 26: End of recursive call: and 1 xjuncts. [2018-04-11 16:20:33,570 INFO L267 ElimStorePlain]: Start of recursive call 25: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-04-11 16:20:33,592 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 3 select indices, 3 select index equivalence classes, 2 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 6 case distinctions, treesize of input 169 treesize of output 200 [2018-04-11 16:20:33,595 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 186 treesize of output 185 [2018-04-11 16:20:33,595 INFO L267 ElimStorePlain]: Start of recursive call 28: End of recursive call: and 1 xjuncts. [2018-04-11 16:20:33,728 INFO L267 ElimStorePlain]: Start of recursive call 27: 2 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-04-11 16:20:33,960 INFO L267 ElimStorePlain]: Start of recursive call 1: 10 dim-0 vars, 4 dim-2 vars, End of recursive call: 36 dim-0 vars, and 8 xjuncts. [2018-04-11 16:20:33,960 INFO L202 ElimStorePlain]: Needed 28 recursive calls to eliminate 14 variables, input treesize:349, output treesize:1025 [2018-04-11 16:20:35,410 WARN L151 SmtUtils]: Spent 1324ms on a formula simplification. DAG size of input: 297 DAG size of output 189 [2018-04-11 16:20:35,676 WARN L148 SmtUtils]: Spent 127ms on a formula simplification that was a NOOP. DAG size: 226 [2018-04-11 16:20:35,950 WARN L148 SmtUtils]: Spent 118ms on a formula simplification that was a NOOP. DAG size: 226 [2018-04-11 16:20:36,181 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 4 select indices, 4 select index equivalence classes, 2 disjoint index pairs (out of 6 index pairs), introduced 4 new quantified variables, introduced 11 case distinctions, treesize of input 237 treesize of output 307 [2018-04-11 16:20:36,186 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 286 treesize of output 285 [2018-04-11 16:20:36,186 INFO L267 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 1 xjuncts. [2018-04-11 16:20:36,480 INFO L267 ElimStorePlain]: Start of recursive call 2: 2 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-04-11 16:20:37,284 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 3 select indices, 3 select index equivalence classes, 3 disjoint index pairs (out of 3 index pairs), introduced 4 new quantified variables, introduced 6 case distinctions, treesize of input 168 treesize of output 180 [2018-04-11 16:20:37,290 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 179 treesize of output 178 [2018-04-11 16:20:37,290 INFO L267 ElimStorePlain]: Start of recursive call 5: End of recursive call: and 1 xjuncts. [2018-04-11 16:20:37,517 INFO L682 Elim1Store]: detected equality via solver [2018-04-11 16:20:37,518 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 154 treesize of output 147 [2018-04-11 16:20:37,518 INFO L267 ElimStorePlain]: Start of recursive call 6: End of recursive call: and 1 xjuncts. [2018-04-11 16:20:37,631 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 1 select indices, 1 select index equivalence classes, 2 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 2 case distinctions, treesize of input 135 treesize of output 141 [2018-04-11 16:20:37,631 INFO L267 ElimStorePlain]: Start of recursive call 7: 1 dim-0 vars, End of recursive call: 1 dim-0 vars, and 2 xjuncts. [2018-04-11 16:20:37,722 INFO L267 ElimStorePlain]: Start of recursive call 4: 3 dim-1 vars, End of recursive call: 1 dim-0 vars, and 3 xjuncts. [2018-04-11 16:20:39,162 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 3 select indices, 3 select index equivalence classes, 4 disjoint index pairs (out of 3 index pairs), introduced 5 new quantified variables, introduced 6 case distinctions, treesize of input 236 treesize of output 217 [2018-04-11 16:20:39,168 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 259 treesize of output 258 [2018-04-11 16:20:39,168 INFO L267 ElimStorePlain]: Start of recursive call 9: End of recursive call: and 1 xjuncts. [2018-04-11 16:20:40,244 INFO L682 Elim1Store]: detected equality via solver [2018-04-11 16:20:40,253 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 1 select indices, 1 select index equivalence classes, 2 disjoint index pairs (out of 0 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 220 treesize of output 173 [2018-04-11 16:20:40,253 INFO L267 ElimStorePlain]: Start of recursive call 10: 1 dim-0 vars, End of recursive call: 1 dim-0 vars, and 1 xjuncts. [2018-04-11 16:20:40,551 INFO L682 Elim1Store]: detected equality via solver [2018-04-11 16:20:40,552 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 179 treesize of output 193 [2018-04-11 16:20:40,553 INFO L267 ElimStorePlain]: Start of recursive call 11: End of recursive call: and 1 xjuncts. [2018-04-11 16:20:40,799 INFO L267 ElimStorePlain]: Start of recursive call 8: 5 dim-1 vars, End of recursive call: 1 dim-0 vars, and 4 xjuncts. [2018-04-11 16:20:44,439 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 4 select indices, 4 select index equivalence classes, 4 disjoint index pairs (out of 6 index pairs), introduced 4 new quantified variables, introduced 9 case distinctions, treesize of input 223 treesize of output 273 [2018-04-11 16:20:44,444 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 262 treesize of output 261 [2018-04-11 16:20:44,444 INFO L267 ElimStorePlain]: Start of recursive call 13: End of recursive call: and 1 xjuncts. [2018-04-11 16:20:44,680 INFO L267 ElimStorePlain]: Start of recursive call 12: 2 dim-1 vars, End of recursive call: and 2 xjuncts. [2018-04-11 16:20:44,688 INFO L682 Elim1Store]: detected equality via solver [2018-04-11 16:20:44,688 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 4 select indices, 4 select index equivalence classes, 4 disjoint index pairs (out of 6 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 161 treesize of output 173 [2018-04-11 16:20:44,690 INFO L682 Elim1Store]: detected equality via solver [2018-04-11 16:20:44,691 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 43 treesize of output 35 [2018-04-11 16:20:44,691 INFO L267 ElimStorePlain]: Start of recursive call 15: End of recursive call: and 1 xjuncts. [2018-04-11 16:20:44,713 INFO L267 ElimStorePlain]: Start of recursive call 14: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-04-11 16:20:44,717 INFO L700 Elim1Store]: detected not equals via solver [2018-04-11 16:20:44,742 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 4 select indices, 4 select index equivalence classes, 5 disjoint index pairs (out of 6 index pairs), introduced 3 new quantified variables, introduced 6 case distinctions, treesize of input 226 treesize of output 263 [2018-04-11 16:20:44,745 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 259 treesize of output 258 [2018-04-11 16:20:44,746 INFO L267 ElimStorePlain]: Start of recursive call 17: End of recursive call: and 1 xjuncts. [2018-04-11 16:20:44,878 INFO L267 ElimStorePlain]: Start of recursive call 16: 2 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-04-11 16:20:44,883 INFO L682 Elim1Store]: detected equality via solver [2018-04-11 16:20:44,884 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 3 select indices, 3 select index equivalence classes, 4 disjoint index pairs (out of 3 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 187 treesize of output 157 [2018-04-11 16:20:44,886 INFO L682 Elim1Store]: detected equality via solver [2018-04-11 16:20:44,886 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 69 treesize of output 34 [2018-04-11 16:20:44,887 INFO L267 ElimStorePlain]: Start of recursive call 19: End of recursive call: and 1 xjuncts. [2018-04-11 16:20:44,903 INFO L267 ElimStorePlain]: Start of recursive call 18: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-04-11 16:20:46,259 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 3 select indices, 3 select index equivalence classes, 3 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 6 case distinctions, treesize of input 158 treesize of output 191 [2018-04-11 16:20:46,262 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 175 treesize of output 174 [2018-04-11 16:20:46,262 INFO L267 ElimStorePlain]: Start of recursive call 21: End of recursive call: and 1 xjuncts. [2018-04-11 16:20:46,365 INFO L267 ElimStorePlain]: Start of recursive call 20: 2 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-04-11 16:20:46,368 INFO L682 Elim1Store]: detected equality via solver [2018-04-11 16:20:46,369 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 3 disjoint index pairs (out of 1 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 134 treesize of output 134 [2018-04-11 16:20:46,377 INFO L682 Elim1Store]: detected equality via solver [2018-04-11 16:20:46,378 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 57 treesize of output 27 [2018-04-11 16:20:46,378 INFO L267 ElimStorePlain]: Start of recursive call 23: End of recursive call: and 1 xjuncts. [2018-04-11 16:20:46,393 INFO L267 ElimStorePlain]: Start of recursive call 22: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-04-11 16:20:46,399 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 3 select indices, 3 select index equivalence classes, 3 disjoint index pairs (out of 3 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 128 treesize of output 139 [2018-04-11 16:20:46,401 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 22 treesize of output 21 [2018-04-11 16:20:46,401 INFO L267 ElimStorePlain]: Start of recursive call 25: End of recursive call: and 1 xjuncts. [2018-04-11 16:20:46,419 INFO L267 ElimStorePlain]: Start of recursive call 24: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-04-11 16:20:47,081 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 3 select indices, 3 select index equivalence classes, 3 disjoint index pairs (out of 3 index pairs), introduced 4 new quantified variables, introduced 6 case distinctions, treesize of input 176 treesize of output 188 [2018-04-11 16:20:47,087 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 187 treesize of output 186 [2018-04-11 16:20:47,087 INFO L267 ElimStorePlain]: Start of recursive call 27: End of recursive call: and 1 xjuncts. [2018-04-11 16:20:47,606 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 1 select indices, 1 select index equivalence classes, 2 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 2 case distinctions, treesize of input 149 treesize of output 161 [2018-04-11 16:20:47,607 INFO L267 ElimStorePlain]: Start of recursive call 28: 1 dim-0 vars, End of recursive call: 1 dim-0 vars, and 2 xjuncts. [2018-04-11 16:20:47,801 INFO L682 Elim1Store]: detected equality via solver [2018-04-11 16:20:47,803 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 166 treesize of output 158 [2018-04-11 16:20:47,803 INFO L267 ElimStorePlain]: Start of recursive call 29: End of recursive call: and 1 xjuncts. [2018-04-11 16:20:47,937 INFO L267 ElimStorePlain]: Start of recursive call 26: 4 dim-1 vars, End of recursive call: 1 dim-0 vars, and 3 xjuncts. [2018-04-11 16:20:49,019 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 3 select indices, 3 select index equivalence classes, 3 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 6 case distinctions, treesize of input 166 treesize of output 199 [2018-04-11 16:20:49,023 INFO L682 Elim1Store]: detected equality via solver [2018-04-11 16:20:49,023 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 166 treesize of output 169 [2018-04-11 16:20:49,024 INFO L267 ElimStorePlain]: Start of recursive call 31: End of recursive call: and 1 xjuncts. [2018-04-11 16:20:49,133 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 157 treesize of output 156 [2018-04-11 16:20:49,134 INFO L267 ElimStorePlain]: Start of recursive call 32: End of recursive call: and 1 xjuncts. [2018-04-11 16:20:49,175 INFO L267 ElimStorePlain]: Start of recursive call 30: 2 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-04-11 16:20:49,182 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 3 select indices, 3 select index equivalence classes, 3 disjoint index pairs (out of 3 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 142 treesize of output 153 [2018-04-11 16:20:49,184 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 22 treesize of output 21 [2018-04-11 16:20:49,184 INFO L267 ElimStorePlain]: Start of recursive call 34: End of recursive call: and 1 xjuncts. [2018-04-11 16:20:49,214 INFO L267 ElimStorePlain]: Start of recursive call 33: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-04-11 16:20:49,217 INFO L682 Elim1Store]: detected equality via solver [2018-04-11 16:20:49,218 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 3 disjoint index pairs (out of 1 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 146 treesize of output 146 [2018-04-11 16:20:49,219 INFO L682 Elim1Store]: detected equality via solver [2018-04-11 16:20:49,220 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 61 treesize of output 29 [2018-04-11 16:20:49,220 INFO L267 ElimStorePlain]: Start of recursive call 36: End of recursive call: and 1 xjuncts. [2018-04-11 16:20:49,238 INFO L267 ElimStorePlain]: Start of recursive call 35: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-04-11 16:20:49,844 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 4 select indices, 4 select index equivalence classes, 2 disjoint index pairs (out of 6 index pairs), introduced 6 new quantified variables, introduced 11 case distinctions, treesize of input 239 treesize of output 243 [2018-04-11 16:20:49,845 WARN L130 XnfTransformerHelper]: expecting exponential blowup for input size 6 [2018-04-11 16:20:49,859 WARN L307 Elim1Store]: Array PQE input equivalent to false [2018-04-11 16:20:49,859 INFO L267 ElimStorePlain]: Start of recursive call 38: End of recursive call: and 1 xjuncts. [2018-04-11 16:20:52,214 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 230 treesize of output 229 [2018-04-11 16:20:52,214 INFO L267 ElimStorePlain]: Start of recursive call 39: End of recursive call: and 1 xjuncts. [2018-04-11 16:20:53,080 INFO L700 Elim1Store]: detected not equals via solver [2018-04-11 16:20:53,080 INFO L682 Elim1Store]: detected equality via solver [2018-04-11 16:20:53,081 INFO L700 Elim1Store]: detected not equals via solver [2018-04-11 16:20:53,083 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 2 select indices, 2 select index equivalence classes, 4 disjoint index pairs (out of 1 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 169 treesize of output 192 [2018-04-11 16:20:53,083 INFO L267 ElimStorePlain]: Start of recursive call 40: End of recursive call: and 1 xjuncts. [2018-04-11 16:20:53,687 INFO L682 Elim1Store]: detected equality via solver [2018-04-11 16:20:53,688 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 239 treesize of output 232 [2018-04-11 16:20:53,689 INFO L267 ElimStorePlain]: Start of recursive call 41: End of recursive call: and 1 xjuncts. [2018-04-11 16:20:54,058 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 1 select indices, 1 select index equivalence classes, 2 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 2 case distinctions, treesize of input 204 treesize of output 216 [2018-04-11 16:20:54,059 INFO L267 ElimStorePlain]: Start of recursive call 42: 1 dim-0 vars, End of recursive call: 1 dim-0 vars, and 2 xjuncts. [2018-04-11 16:20:54,410 INFO L682 Elim1Store]: detected equality via solver [2018-04-11 16:20:54,411 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 1 select indices, 1 select index equivalence classes, 2 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 221 treesize of output 201 [2018-04-11 16:20:54,411 INFO L267 ElimStorePlain]: Start of recursive call 43: 1 dim-0 vars, End of recursive call: 1 dim-0 vars, and 1 xjuncts. [2018-04-11 16:20:55,058 INFO L267 ElimStorePlain]: Start of recursive call 37: 3 dim-0 vars, 7 dim-1 vars, End of recursive call: 3 dim-0 vars, and 6 xjuncts. [2018-04-11 16:20:56,813 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 4 select indices, 4 select index equivalence classes, 4 disjoint index pairs (out of 6 index pairs), introduced 1 new quantified variables, introduced 2 case distinctions, treesize of input 191 treesize of output 192 [2018-04-11 16:20:56,815 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 22 treesize of output 21 [2018-04-11 16:20:56,815 INFO L267 ElimStorePlain]: Start of recursive call 45: End of recursive call: and 1 xjuncts. [2018-04-11 16:20:56,843 INFO L267 ElimStorePlain]: Start of recursive call 44: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-04-11 16:20:56,849 INFO L682 Elim1Store]: detected equality via solver [2018-04-11 16:20:56,858 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 3 select indices, 3 select index equivalence classes, 4 disjoint index pairs (out of 3 index pairs), introduced 2 new quantified variables, introduced 3 case distinctions, treesize of input 229 treesize of output 236 [2018-04-11 16:20:56,860 INFO L682 Elim1Store]: detected equality via solver [2018-04-11 16:20:56,861 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 243 treesize of output 204 [2018-04-11 16:20:56,861 INFO L267 ElimStorePlain]: Start of recursive call 47: End of recursive call: and 1 xjuncts. [2018-04-11 16:20:56,934 INFO L267 ElimStorePlain]: Start of recursive call 46: 1 dim-1 vars, End of recursive call: and 2 xjuncts. [2018-04-11 16:20:56,938 INFO L682 Elim1Store]: detected equality via solver [2018-04-11 16:20:56,940 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 3 select indices, 3 select index equivalence classes, 3 disjoint index pairs (out of 3 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 179 treesize of output 195 [2018-04-11 16:20:56,942 INFO L682 Elim1Store]: detected equality via solver [2018-04-11 16:20:56,942 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 63 treesize of output 28 [2018-04-11 16:20:56,942 INFO L267 ElimStorePlain]: Start of recursive call 49: End of recursive call: and 1 xjuncts. [2018-04-11 16:20:56,962 INFO L267 ElimStorePlain]: Start of recursive call 48: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-04-11 16:20:56,967 INFO L682 Elim1Store]: detected equality via solver [2018-04-11 16:20:56,973 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 4 select indices, 4 select index equivalence classes, 4 disjoint index pairs (out of 6 index pairs), introduced 1 new quantified variables, introduced 1 case distinctions, treesize of input 214 treesize of output 240 [2018-04-11 16:20:56,975 INFO L682 Elim1Store]: detected equality via solver [2018-04-11 16:20:56,975 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 50 treesize of output 38 [2018-04-11 16:20:56,975 INFO L267 ElimStorePlain]: Start of recursive call 51: End of recursive call: and 1 xjuncts. [2018-04-11 16:20:57,004 INFO L267 ElimStorePlain]: Start of recursive call 50: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-04-11 16:20:57,008 INFO L682 Elim1Store]: detected equality via solver [2018-04-11 16:20:57,013 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 4 select indices, 4 select index equivalence classes, 4 disjoint index pairs (out of 6 index pairs), introduced 1 new quantified variables, introduced 1 case distinctions, treesize of input 195 treesize of output 221 [2018-04-11 16:20:57,015 INFO L682 Elim1Store]: detected equality via solver [2018-04-11 16:20:57,015 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 50 treesize of output 38 [2018-04-11 16:20:57,016 INFO L267 ElimStorePlain]: Start of recursive call 53: End of recursive call: and 1 xjuncts. [2018-04-11 16:20:57,040 INFO L267 ElimStorePlain]: Start of recursive call 52: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-04-11 16:20:57,082 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 4 select indices, 4 select index equivalence classes, 2 disjoint index pairs (out of 6 index pairs), introduced 4 new quantified variables, introduced 11 case distinctions, treesize of input 229 treesize of output 283 [2018-04-11 16:20:57,088 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 262 treesize of output 261 [2018-04-11 16:20:57,088 INFO L267 ElimStorePlain]: Start of recursive call 55: End of recursive call: and 1 xjuncts. [2018-04-11 16:20:57,245 INFO L267 ElimStorePlain]: Start of recursive call 54: 2 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-04-11 16:20:58,170 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 4 select indices, 4 select index equivalence classes, 2 disjoint index pairs (out of 6 index pairs), introduced 6 new quantified variables, introduced 11 case distinctions, treesize of input 227 treesize of output 233 [2018-04-11 16:20:58,170 WARN L130 XnfTransformerHelper]: expecting exponential blowup for input size 6 [2018-04-11 16:20:58,183 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 254 treesize of output 253 [2018-04-11 16:20:58,183 INFO L267 ElimStorePlain]: Start of recursive call 57: End of recursive call: and 1 xjuncts. [2018-04-11 16:20:58,656 INFO L682 Elim1Store]: detected equality via solver [2018-04-11 16:20:58,657 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 1 select indices, 1 select index equivalence classes, 2 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 222 treesize of output 214 [2018-04-11 16:20:58,658 INFO L267 ElimStorePlain]: Start of recursive call 58: End of recursive call: and 1 xjuncts. [2018-04-11 16:20:58,938 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 1 select indices, 1 select index equivalence classes, 2 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 2 case distinctions, treesize of input 192 treesize of output 204 [2018-04-11 16:20:58,939 INFO L267 ElimStorePlain]: Start of recursive call 59: 1 dim-0 vars, End of recursive call: 1 dim-0 vars, and 2 xjuncts. [2018-04-11 16:20:59,443 INFO L700 Elim1Store]: detected not equals via solver [2018-04-11 16:20:59,443 INFO L682 Elim1Store]: detected equality via solver [2018-04-11 16:20:59,445 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 2 select indices, 2 select index equivalence classes, 4 disjoint index pairs (out of 1 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 162 treesize of output 184 [2018-04-11 16:20:59,445 INFO L267 ElimStorePlain]: Start of recursive call 60: End of recursive call: and 1 xjuncts. [2018-04-11 16:20:59,670 INFO L682 Elim1Store]: detected equality via solver [2018-04-11 16:20:59,671 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 1 select indices, 1 select index equivalence classes, 2 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 200 treesize of output 180 [2018-04-11 16:20:59,671 INFO L267 ElimStorePlain]: Start of recursive call 61: 1 dim-0 vars, End of recursive call: 1 dim-0 vars, and 1 xjuncts. [2018-04-11 16:21:00,085 INFO L267 ElimStorePlain]: Start of recursive call 62: 1 dim-0 vars, End of recursive call: 1 dim-0 vars, and 1 xjuncts. [2018-04-11 16:21:00,290 INFO L267 ElimStorePlain]: Start of recursive call 56: 8 dim-1 vars, End of recursive call: 3 dim-0 vars, and 6 xjuncts. [2018-04-11 16:21:01,507 INFO L267 ElimStorePlain]: Start of recursive call 1: 28 dim-0 vars, 10 dim-2 vars, End of recursive call: 117 dim-0 vars, and 22 xjuncts. [2018-04-11 16:21:01,508 INFO L202 ElimStorePlain]: Needed 62 recursive calls to eliminate 38 variables, input treesize:1057, output treesize:3734 [2018-04-11 16:22:21,092 WARN L151 SmtUtils]: Spent 64519ms on a formula simplification. DAG size of input: 1036 DAG size of output 371 Received shutdown request... [2018-04-11 16:22:24,820 INFO L175 TraceCheckSpWp]: Timeout while computing interpolants [2018-04-11 16:22:24,820 WARN L519 AbstractCegarLoop]: Verification canceled [2018-04-11 16:22:24,823 WARN L197 ceAbstractionStarter]: Timeout [2018-04-11 16:22:24,824 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 11.04 04:22:24 BoogieIcfgContainer [2018-04-11 16:22:24,824 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2018-04-11 16:22:24,824 INFO L168 Benchmark]: Toolchain (without parser) took 199956.30 ms. Allocated memory was 404.2 MB in the beginning and 792.2 MB in the end (delta: 388.0 MB). Free memory was 337.3 MB in the beginning and 637.6 MB in the end (delta: -300.4 MB). Peak memory consumption was 87.6 MB. Max. memory is 5.3 GB. [2018-04-11 16:22:24,825 INFO L168 Benchmark]: CDTParser took 0.23 ms. Allocated memory is still 404.2 MB. Free memory is still 364.2 MB. There was no memory consumed. Max. memory is 5.3 GB. [2018-04-11 16:22:24,825 INFO L168 Benchmark]: CACSL2BoogieTranslator took 262.94 ms. Allocated memory is still 404.2 MB. Free memory was 335.9 MB in the beginning and 310.6 MB in the end (delta: 25.3 MB). Peak memory consumption was 25.3 MB. Max. memory is 5.3 GB. [2018-04-11 16:22:24,825 INFO L168 Benchmark]: Boogie Preprocessor took 40.46 ms. Allocated memory is still 404.2 MB. Free memory was 310.6 MB in the beginning and 307.9 MB in the end (delta: 2.6 MB). Peak memory consumption was 2.6 MB. Max. memory is 5.3 GB. [2018-04-11 16:22:24,826 INFO L168 Benchmark]: RCFGBuilder took 415.42 ms. Allocated memory was 404.2 MB in the beginning and 596.1 MB in the end (delta: 191.9 MB). Free memory was 307.9 MB in the beginning and 530.4 MB in the end (delta: -222.4 MB). Peak memory consumption was 24.8 MB. Max. memory is 5.3 GB. [2018-04-11 16:22:24,826 INFO L168 Benchmark]: TraceAbstraction took 199234.96 ms. Allocated memory was 596.1 MB in the beginning and 792.2 MB in the end (delta: 196.1 MB). Free memory was 530.4 MB in the beginning and 637.6 MB in the end (delta: -107.2 MB). Peak memory consumption was 88.9 MB. Max. memory is 5.3 GB. [2018-04-11 16:22:24,827 INFO L344 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.23 ms. Allocated memory is still 404.2 MB. Free memory is still 364.2 MB. There was no memory consumed. Max. memory is 5.3 GB. * CACSL2BoogieTranslator took 262.94 ms. Allocated memory is still 404.2 MB. Free memory was 335.9 MB in the beginning and 310.6 MB in the end (delta: 25.3 MB). Peak memory consumption was 25.3 MB. Max. memory is 5.3 GB. * Boogie Preprocessor took 40.46 ms. Allocated memory is still 404.2 MB. Free memory was 310.6 MB in the beginning and 307.9 MB in the end (delta: 2.6 MB). Peak memory consumption was 2.6 MB. Max. memory is 5.3 GB. * RCFGBuilder took 415.42 ms. Allocated memory was 404.2 MB in the beginning and 596.1 MB in the end (delta: 191.9 MB). Free memory was 307.9 MB in the beginning and 530.4 MB in the end (delta: -222.4 MB). Peak memory consumption was 24.8 MB. Max. memory is 5.3 GB. * TraceAbstraction took 199234.96 ms. Allocated memory was 596.1 MB in the beginning and 792.2 MB in the end (delta: 196.1 MB). Free memory was 530.4 MB in the beginning and 637.6 MB in the end (delta: -107.2 MB). Peak memory consumption was 88.9 MB. Max. memory is 5.3 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - TimeoutResultAtElement [Line: 638]: Timeout (TraceAbstraction) Unable to prove that pointer dereference always succeeds (line 638). Cancelled while BasicCegarLoop was analyzing trace of length 70 with TraceHistMax 5, while TraceCheckSpWp was constructing forward predicates, while PredicateUnifier was unifying predicates, while SimplifyDDAWithTimeout was simplifying term of DAG size 371. - TimeoutResultAtElement [Line: 649]: Timeout (TraceAbstraction) Unable to prove that pointer dereference always succeeds (line 649). Cancelled while BasicCegarLoop was analyzing trace of length 70 with TraceHistMax 5, while TraceCheckSpWp was constructing forward predicates, while PredicateUnifier was unifying predicates, while SimplifyDDAWithTimeout was simplifying term of DAG size 371. - TimeoutResultAtElement [Line: 634]: Timeout (TraceAbstraction) Unable to prove that pointer dereference always succeeds (line 634). Cancelled while BasicCegarLoop was analyzing trace of length 70 with TraceHistMax 5, while TraceCheckSpWp was constructing forward predicates, while PredicateUnifier was unifying predicates, while SimplifyDDAWithTimeout was simplifying term of DAG size 371. - TimeoutResultAtElement [Line: 642]: Timeout (TraceAbstraction) Unable to prove that pointer dereference always succeeds (line 642). Cancelled while BasicCegarLoop was analyzing trace of length 70 with TraceHistMax 5, while TraceCheckSpWp was constructing forward predicates, while PredicateUnifier was unifying predicates, while SimplifyDDAWithTimeout was simplifying term of DAG size 371. - TimeoutResultAtElement [Line: 634]: Timeout (TraceAbstraction) Unable to prove that pointer dereference always succeeds (line 634). Cancelled while BasicCegarLoop was analyzing trace of length 70 with TraceHistMax 5, while TraceCheckSpWp was constructing forward predicates, while PredicateUnifier was unifying predicates, while SimplifyDDAWithTimeout was simplifying term of DAG size 371. - TimeoutResultAtElement [Line: 627]: Timeout (TraceAbstraction) Unable to prove that all allocated memory was freed (line 627). Cancelled while BasicCegarLoop was analyzing trace of length 70 with TraceHistMax 5, while TraceCheckSpWp was constructing forward predicates, while PredicateUnifier was unifying predicates, while SimplifyDDAWithTimeout was simplifying term of DAG size 371. - TimeoutResultAtElement [Line: 655]: Timeout (TraceAbstraction) Unable to prove that free always succeeds (line 655). Cancelled while BasicCegarLoop was analyzing trace of length 70 with TraceHistMax 5, while TraceCheckSpWp was constructing forward predicates, while PredicateUnifier was unifying predicates, while SimplifyDDAWithTimeout was simplifying term of DAG size 371. - TimeoutResultAtElement [Line: 637]: Timeout (TraceAbstraction) Unable to prove that pointer dereference always succeeds (line 637). Cancelled while BasicCegarLoop was analyzing trace of length 70 with TraceHistMax 5, while TraceCheckSpWp was constructing forward predicates, while PredicateUnifier was unifying predicates, while SimplifyDDAWithTimeout was simplifying term of DAG size 371. - TimeoutResultAtElement [Line: 641]: Timeout (TraceAbstraction) Unable to prove that pointer dereference always succeeds (line 641). Cancelled while BasicCegarLoop was analyzing trace of length 70 with TraceHistMax 5, while TraceCheckSpWp was constructing forward predicates, while PredicateUnifier was unifying predicates, while SimplifyDDAWithTimeout was simplifying term of DAG size 371. - TimeoutResultAtElement [Line: 646]: Timeout (TraceAbstraction) Unable to prove that pointer dereference always succeeds (line 646). Cancelled while BasicCegarLoop was analyzing trace of length 70 with TraceHistMax 5, while TraceCheckSpWp was constructing forward predicates, while PredicateUnifier was unifying predicates, while SimplifyDDAWithTimeout was simplifying term of DAG size 371. - TimeoutResultAtElement [Line: 642]: Timeout (TraceAbstraction) Unable to prove that pointer dereference always succeeds (line 642). Cancelled while BasicCegarLoop was analyzing trace of length 70 with TraceHistMax 5, while TraceCheckSpWp was constructing forward predicates, while PredicateUnifier was unifying predicates, while SimplifyDDAWithTimeout was simplifying term of DAG size 371. - TimeoutResultAtElement [Line: 646]: Timeout (TraceAbstraction) Unable to prove that pointer dereference always succeeds (line 646). Cancelled while BasicCegarLoop was analyzing trace of length 70 with TraceHistMax 5, while TraceCheckSpWp was constructing forward predicates, while PredicateUnifier was unifying predicates, while SimplifyDDAWithTimeout was simplifying term of DAG size 371. - TimeoutResultAtElement [Line: 654]: Timeout (TraceAbstraction) Unable to prove that pointer dereference always succeeds (line 654). Cancelled while BasicCegarLoop was analyzing trace of length 70 with TraceHistMax 5, while TraceCheckSpWp was constructing forward predicates, while PredicateUnifier was unifying predicates, while SimplifyDDAWithTimeout was simplifying term of DAG size 371. - TimeoutResultAtElement [Line: 637]: Timeout (TraceAbstraction) Unable to prove that pointer dereference always succeeds (line 637). Cancelled while BasicCegarLoop was analyzing trace of length 70 with TraceHistMax 5, while TraceCheckSpWp was constructing forward predicates, while PredicateUnifier was unifying predicates, while SimplifyDDAWithTimeout was simplifying term of DAG size 371. - TimeoutResultAtElement [Line: 638]: Timeout (TraceAbstraction) Unable to prove that pointer dereference always succeeds (line 638). Cancelled while BasicCegarLoop was analyzing trace of length 70 with TraceHistMax 5, while TraceCheckSpWp was constructing forward predicates, while PredicateUnifier was unifying predicates, while SimplifyDDAWithTimeout was simplifying term of DAG size 371. - TimeoutResultAtElement [Line: 649]: Timeout (TraceAbstraction) Unable to prove that pointer dereference always succeeds (line 649). Cancelled while BasicCegarLoop was analyzing trace of length 70 with TraceHistMax 5, while TraceCheckSpWp was constructing forward predicates, while PredicateUnifier was unifying predicates, while SimplifyDDAWithTimeout was simplifying term of DAG size 371. - TimeoutResultAtElement [Line: 641]: Timeout (TraceAbstraction) Unable to prove that pointer dereference always succeeds (line 641). Cancelled while BasicCegarLoop was analyzing trace of length 70 with TraceHistMax 5, while TraceCheckSpWp was constructing forward predicates, while PredicateUnifier was unifying predicates, while SimplifyDDAWithTimeout was simplifying term of DAG size 371. - TimeoutResultAtElement [Line: 655]: Timeout (TraceAbstraction) Unable to prove that free always succeeds (line 655). Cancelled while BasicCegarLoop was analyzing trace of length 70 with TraceHistMax 5, while TraceCheckSpWp was constructing forward predicates, while PredicateUnifier was unifying predicates, while SimplifyDDAWithTimeout was simplifying term of DAG size 371. - TimeoutResultAtElement [Line: 654]: Timeout (TraceAbstraction) Unable to prove that pointer dereference always succeeds (line 654). Cancelled while BasicCegarLoop was analyzing trace of length 70 with TraceHistMax 5, while TraceCheckSpWp was constructing forward predicates, while PredicateUnifier was unifying predicates, while SimplifyDDAWithTimeout was simplifying term of DAG size 371. - StatisticsResult: Ultimate Automizer benchmark data CFG has 4 procedures, 69 locations, 19 error locations. TIMEOUT Result, 199.1s OverallTime, 33 OverallIterations, 5 TraceHistogramMax, 47.0s AutomataDifference, 0.0s DeadEndRemovalTime, 0.0s HoareAnnotationTime, HoareTripleCheckerStatistics: 1384 SDtfs, 8031 SDslu, 11507 SDs, 0 SdLazy, 19279 SolverSat, 1434 SolverUnsat, 9 SolverUnknown, 0 SolverNotchecked, 16.1s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 1922 GetRequests, 842 SyntacticMatches, 23 SemanticMatches, 1057 ConstructedPredicates, 4 IntricatePredicates, 0 DeprecatedPredicates, 9138 ImplicationChecksByTransitivity, 38.7s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=182occurred in iteration=32, 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, 32 MinimizatonAttempts, 769 StatesRemovedByMinimization, 29 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TraceCheckStatistics: 0.0s SsaConstructionTime, 0.8s SatisfiabilityAnalysisTime, 36.1s InterpolantComputationTime, 2798 NumberOfCodeBlocks, 2780 NumberOfCodeBlocksAsserted, 83 NumberOfCheckSat, 1482 ConstructedInterpolants, 636 QuantifiedInterpolants, 4934592 SizeOfPredicates, 540 NumberOfNonLiveVariables, 5156 ConjunctsInSsa, 1448 ConjunctsInUnsatCore, 34 InterpolantComputations, 6 PerfectInterpolantSequences, 88/707 InterpolantCoveringCapability, InvariantSynthesisStatistics: No data available, InterpolantConsolidationStatistics: No data available, ReuseStatistics: No data available RESULT: Ultimate could not prove your program: Timeout Written .csv to /home/ultimate/work/ultimate/releaseScripts/default/UAutomizer-linux/../../../releaseScripts/default/UAutomizer-linux/csv/simple-ext_1_true-valid-memsafety.i_svcomp-DerefFreeMemtrack-32bit-Automizer_SmtInterpol_NoArray.epf_AutomizerC.xml/Csv-Benchmark-0-2018-04-11_16-22-24-832.csv Written .csv to /home/ultimate/work/ultimate/releaseScripts/default/UAutomizer-linux/../../../releaseScripts/default/UAutomizer-linux/csv/simple-ext_1_true-valid-memsafety.i_svcomp-DerefFreeMemtrack-32bit-Automizer_SmtInterpol_NoArray.epf_AutomizerC.xml/Csv-TraceAbstractionBenchmarks-0-2018-04-11_16-22-24-832.csv Completed graceful shutdown